Patent Description:
The following paragraphs are not an admission that anything discussed in them is prior art or part of the knowledge of persons skilled in the art.

<CIT> describes systems and methods for left radial access, right room operation peripheral interventions that include left radial bases to stabilize a left arm of a cardiac patient across a midsagittal plane, transradiant right radial bases to position a right arm of the patient, and radiodense radiation reduction barriers located between the patient and a doctor.

<CIT> describes a medical apparatus for use in supporting a patient lying in a supine position during a radial cardiac catheterization procedure. More particularly, an arm board is described for use with a patient's arm during a radial cardiac catheterization procedure. The arm board has a base member having a substantially planar support surface on which the patient's arm can be stabilized during a catheterization procedure and at least one shield member affixed to the base member and extending away from the support surface. The base member has both a radiolucent portion and a radiopaque portion and the shield member is a radiopaque material, thereby reducing and/or eliminating a doctor's exposure to radiation during radial cardiac catheterization procedures without impairing the ability to obtain the necessary medical images.

International Publication No. <CIT> describes an apparatus for supporting an arm of a human patient during a medical procedure that can include a base, an arm pad, and barriers for shielding scatter radiation. A medial portion of the base can lie between the human patient and a table on which the human patient is supported. The arm pad can be positioned on a lateral portion of the base. A first barrier can be mounted to the base and can be positioned laterally intermediate the medial and lateral portions, the first barrier extending upwardly from the base to above the arm pad. A second barrier can be mounted to the lateral portion of the base and extend downwardly. The arm pad can include a radiopaque panel that is horizontal.

<CIT> belongs to the technical field of medical apparatuses, and particularly relates to an anti-radiation abdomen CT (computed tomography) examination bed. The anti-radiation abdomen CT examination bed comprises a base, a bed plate, a lower protection mechanism and an upper protection mechanism, wherein the bed plate is glidingly connected with the base; the base is integrally formed by a support table and a support horizontal plate; the support table is arranged in the middle part of the lower surface of the support horizontal plate; the left side wall and right side wall of the support horizontal plate are respectively provided with a first slide groove in the plate extending direction; the bed plate is integrally formed by an upper horizontal plate, four vertical columns, a lower horizontal plate and two strip-shaped slide blocks; the four vertical columns are positioned at the opposite four corners of the upper horizontal plate and the lower horizontal plate; through holes are formed in the corresponding positions of the front and back two vertical columns; the bed plate is glidingly matched with the first slide grooves via the strip-shaped slide blocks. The anti-radiation abdomen CT examination bed has the advantages that the distance between two internal C-shaped plates can be freely adjusted according to the difference of abdomens of patients, so as to meet the abdomen CT examination requirement of the different patients; the wearing of lead clothes is not needed for the patients.

<CIT> relates to radiation shield assemblies for attenuation of X-ray radiation between a patient and attending medical staff that are attachable to an examination table for monitoring the patient during X-ray examination procedures. A radiation shield assembly is disclosed comprising a radiation attenuating screen being transparent to permit the medical staff to view the patient during the procedure.

The following summary is intended to introduce the reader to various aspects of the applicant's teaching, but not to define any invention.

In accordance with the present invention, there is provided an apparatus for shielding radiation as defined in the appended claim <NUM>. Further optional features are recited in the associated dependent claims.

Also described in the present disclosure is an apparatus for shielding radiation emitted during a medical procedure. The apparatus can include: a board positionable on top of a procedure table, the board extending laterally between a first board edge and a second board edge; and a body shield assembly for shielding a patient supported above the procedure table from radiation, the body shield assembly can include: a longitudinally extending track removably mountable to the board along one of the first and second board edges; and at least one shield member extending from a first shield edge to a second shield edge, the first shield edge being attached to and slidable along the track.

Also described in the present disclosure is an apparatus for shielding radiation emitted during a medical procedure. The apparatus can include: a board positionable on top of a procedure table, the board extending laterally between a first board edge and a second board edge, and longitudinally between a third board edge and a fourth board edge; and an adjustable screen assembly for shielding radiation scatter above the procedure table, the adjustable screen assembly can include: a bracket including a mount and a ledge extending away from the mount, the mount being removably mountable to the board along one of the board edges; a clamping mechanism attached to the ledge; a shaft extending from a first shaft end to a second shaft end along a shaft axis; and a screen connected to the shaft proximate to the second shaft end, the clamping mechanism being configured to clamp the shaft to maintain a position of the screen above the board.

Other aspects and features of the teachings disclosed herein will become apparent, to those ordinarily skilled in the art, upon review of the following description of the specific examples of the present disclosure.

The drawings included herewith are for illustrating various examples of apparatuses of the present disclosure and are not intended to limit the scope of what is taught in any way. In the drawings:.

Various apparatuses or methods will be described below to provide an example of an embodiment of each claimed invention. No embodiment described below limits any claimed invention and any claimed invention may cover apparatuses and methods that differ from those described below. The claimed inventions are not limited to apparatuses and methods having all of the features of any one apparatus or method described below, or to features common to multiple or all of the apparatuses or methods described below. It is possible that an apparatus or method described below is not an embodiment of any claimed invention. Any invention disclosed in an apparatus or method described below that is not claimed in this document may be the subject matter of another protective instrument, for example, a continuing patent application, and the applicant(s), inventor(s) and/or owner(s) do not intend to abandon, disclaim or dedicate to the public any such invention by its disclosure in this document.

It should be noted that terms of degree such as "substantially", "about" and "generally" as used herein mean a reasonable amount of deviation of the modified term such that the end result is not significantly changed. These terms of degree may also be construed as including a deviation of the modified term, such as by <NUM>%, <NUM>%, <NUM>% or <NUM>%, for example, if this deviation does not negate the meaning of the term it modifies.

As used herein and in the claims, a first element is said to be "received" in a second element where at least a portion of the first element is received in the second element unless specifically stated otherwise.

Some elements herein may be identified by a part number, which is composed of a base number followed by an alphabetical or subscript-numerical suffix (e.g. 136a, or <NUM><NUM>). Multiple elements herein may be identified by part numbers that share a base number in common and that differ by their suffixes (e.g. <NUM><NUM>, <NUM><NUM>, and <NUM><NUM>). All elements with a common base number may be referred to collectively or generically using the base number without a suffix (e.g. <NUM>).

X-rays, gamma rays, and other forms of ionizing radiation are used to diagnose and treat many medical conditions. The emission of radiation during medical procedures can pose a significant health risk to both patients and healthcare professionals alike. Precautions are taken to limit not only the patient's exposure to radiation, but also the exposure to the staff members (e.g. doctors, nurses, and other healthcare professionals) that are present during these procedures. A staff member may perform thousands of medical procedures per year. Repeated exposure to radiation can pose a serious health risk.

The radiation to which staff members are most commonly exposed is radiation scatter. Radiation scatter is a type of secondary radiation that occurs when a beam intercepts an object, causing that beam to spread in different directions. Radiation scatter can be produced across a wide variety of different medical procedures, such as, for example, CT imaging, mammography, and pacemaker implantation. For many medical procedures, the patient's body is the object that deflects the radiation and causes it to scatter around the room. This means that anyone who is nearby may need to take precautions.

In some cases, staff members are able to step out of the room during the procedure (e.g. dental x-rays). In these cases, the likelihood of exposure to radiation scatter can be reduced. However, this may not be possible for many types of medical procedures (e.g. interventional cardiology, interventional radiology, vascular surgery, etc.). In these cases, one or more staff members may be required to be near the patient while the procedure is performed. Without appropriate protection, these staff members risk being exposed to unsafe levels of radiation. Regular exposure to scatter radiation adds up and may cause serious health issues over time. Scatter radiation is associated with skin damage, eye injury, and increased risk of cancerous lymphocytes and chromosomal abnormalities.

Current equipment, such as lead aprons and other shields, provide some protection to patients and to those staff members in attendance during the medical procedure. This equipment can be clumsy, unprofessional, and uncomfortable for the patient and can provide little or no additional radiation protection. It is desirable for patients and staff members to have their exposure to radiation further reduced. Staff members may perform thousands of medical procedures per year. This repeated exposure to radiation can pose a serious health concern over time if proper protection is not provided.

The present disclosure is directed at medical radiation shielding apparatuses that address the limited applications and other shortcomings of the equipment currently used for protection from medical radiation. In particular, the apparatuses disclosed herein can allow one or more radiation shields to be selectively positioned according to the type of medical procedure being performed, the size/orientation of the patient and/or the position of those performing the medical procedure. Thus, by allowing for such adaptability, the apparatuses disclosed herein may be used to provide radiation shielding for a number of different types of medical procedures that have different radiation shielding needs. This can reduce cost since radiation protection specific to each type of medical procedure may not need to be purchased.

In another aspect, the apparatuses disclosed herein may include one or more radiation shields that are easily and reliably adjusted or repositioned before and/or during the medical procedure. For example, the ability to adjust the position of a radiation shield during the medical procedure can allow an operator to gain access to a part of the patient's body that may otherwise have been inaccessible. Alternatively, or in addition, the ability to reposition a radiation shield during the medical procedure can allow an operator to get a better view of a part of the patient's body that may have otherwise been obscured from view.

<FIG> illustrate an apparatus, referred to generally as <NUM>, for shielding radiation emitted during a medical procedure. As shown, the apparatus <NUM> includes radiation shields <NUM>, <NUM>, <NUM>, <NUM> that are respectively mounted to a board <NUM>. The board <NUM> is shown to be generally planar and can be positioned on top of a procedure table (e.g. see procedure table <NUM> in <FIG> and <FIG>). In use, the board <NUM> lies between the procedure table and the patient. In some cases, the board <NUM> can be positioned under a mattress of the procedure table so that it does not make contact with the patient. As used herein, "procedure table" is meant to refer to any surface or platform that supports a patient above the floor during the medical procedure.

The board <NUM> extends in a longitudinal direction <NUM> between first and second board edges <NUM>, <NUM>, and in a lateral direction <NUM> between third and fourth board edges <NUM>, <NUM>. To aid with understanding, <FIG> includes a direction legend, in which the longitudinal direction <NUM>, the lateral direction <NUM>, and a vertical direction <NUM> are shown.

In use, one or more radiation shields are mounted to the board <NUM> to shield a patient and/or one or more attending staff members from radiation emitted during a medical procedure. Each radiation shield can be selectively positioned according to the type of medical procedure being performed, the size/orientation of the patient and/or the position of those in attendance. For example, comparing <FIG> shows the radiation shields <NUM>, <NUM>, <NUM>, <NUM> of the apparatus <NUM> in alternative positions.

As exemplified by radiation shields <NUM>, <NUM>, <NUM>, <NUM> shown in <FIG>, radiation shields can be available in different configurations. The radiation shield <NUM> (also referred to herein as body shield assembly <NUM>) can be mounted to the board <NUM> to shield a patient that is lying on the procedure table from radiation (e.g. see <FIG> and <FIG>). The radiation shield <NUM> (also referred to herein as adjustable screen assembly <NUM>) can be mounted to the board <NUM> to shield an attending staff member from above table radiation scatter during the medical procedure. The radiation shield <NUM> (also referred to herein as skirt <NUM>) can be mounted to the board <NUM> to shield one or more attending staff members from below table radiation scatter during the medical procedure. The radiation shield <NUM> (also referred to herein as shielded arm support <NUM>) can be mounted to the board <NUM> to support one of the patient's arms and shield one of more attending staff members from radiation scatter during the medical procedure. Radiation shields <NUM>, <NUM>, <NUM>, <NUM> are described in turn below.

The appropriate radiation shield(s) can be selected for use according to the specific shielding needs of the medical procedure. In some examples, the apparatus <NUM> includes multiple of any one or more (or all) of the radiation shields. For example, the apparatus <NUM> can include two of the skirts <NUM> to provide additional protection from below table radiation scatter. In some examples, the apparatus <NUM> does not include one or more of the radiation shields. For example, the apparatus <NUM> may not include the body shield assembly <NUM>, and/or may not include the adjustable screen assembly <NUM>, and/or may not include the skirt <NUM>, and/or may not include the shielded arm support <NUM>. Various configurations are possible.

In some cases, the board <NUM> is secured to the procedure table. This can limit or prevent unintended movement between the board <NUM> and the procedure table. The board <NUM> can be secured to the procedure table in a number of suitable manners. In the illustrated example, the board <NUM> is securable to the procedure table with a pair of belts <NUM>. As perhaps best shown in <FIG>, each belt <NUM> is fed through a pair of laterally spaced apart slits <NUM> formed in the board <NUM> and fastened by Velcro®. Alternatively, a clamp or another type of releasable fastener can be used instead of Velcro®. To secure the board <NUM> to the procedure table, each belt <NUM> can be tightened around the procedure table. This manner of securing the board <NUM> to the procedure table can allow for quick and easy installation by an end user (i.e. no need for professional installation). The board <NUM> can be removed from the procedure table when not in use, e.g. by loosening belts <NUM>.

The board <NUM> includes a plurality of apertures <NUM> along at least one of the board edges <NUM>, <NUM>, <NUM>, <NUM>. As perhaps best shown in <FIG> and <FIG>, the board <NUM> as illustrated includes a plurality of apertures <NUM> located along each of the first, third and fourth board edges <NUM>, <NUM>, <NUM>. The board <NUM> can have a board width in the lateral direction <NUM> (i.e. between the third and fourth board edges <NUM>, <NUM>) that is greater than the width of the procedure table. Accordingly, while positioned on top of the procedure table, the third and fourth board edges <NUM>, <NUM> can project laterally beyond the edges of the procedure table to define corresponding board overhang regions <NUM>, <NUM>. Each of the apertures <NUM> located along the third and fourth board edges <NUM>, <NUM> are located in one of the board overhang regions <NUM>, <NUM>. In some examples, the apertures <NUM> may be located along only one of the board edges <NUM>, <NUM>. In these examples, only the one of the third and fourth board edges <NUM>, <NUM> on which the apertures <NUM> are located can project laterally beyond the procedure table while the board <NUM> is positioned on top of the procedure table.

Referring still to <FIG> and <FIG>, the board <NUM> as illustrated includes two laterally spaced apart apertures <NUM> located along the first board edge <NUM>. The board <NUM> can be positioned on the procedure table so that the first board edge <NUM> projects longitudinally beyond an edge of the procedure table to define a board overhang region <NUM>. Each of the apertures <NUM> located along the first board edge <NUM> can be located in the board overhang region <NUM>. As will be described below, the apertures <NUM> located along the first board edge <NUM> can provide a greater number of potential mounting positions for the radiation shields (e.g. radiation shield <NUM>). In one or more alternative examples, more or less apertures <NUM> may be provided along the first board edge <NUM>. As an example, four apertures <NUM> may be located along the first board edge <NUM>. As another example, six apertures <NUM> may be located along the first board edge <NUM>. Each radiation shield has at least one peg (e.g. see pegs <NUM> of radiation shield <NUM> in <FIG>). Each peg can be engaged with any one of the apertures <NUM> to mount the radiation shield to the board <NUM>. As best shown in <FIG> and <FIG>, the board <NUM> has opposed first and second board sides <NUM>, <NUM>. The first and second board sides <NUM>, <NUM> extend in the longitudinal direction <NUM> between the first and second board edges <NUM>, <NUM>, and in the lateral direction <NUM> between the third and fourth board edges <NUM>, <NUM>. The pegs of each radiation shield (e.g. the radiation shields <NUM>, <NUM>, <NUM>, <NUM>) can be engaged with any one of the apertures <NUM> in the board <NUM> from either the first board side <NUM> or the opposed second board side <NUM>. Accordingly, while the board <NUM> is positioned on top of the procedure table, each radiation shield can be mounted to the board <NUM> from above or below. For example, as perhaps best shown in <FIG>, the adjustable screen assembly <NUM> is mounted to the board <NUM> from above while the skirt <NUM> is mounted to the board <NUM> from below. The ability to mount each radiation shield to the board <NUM> from either above or below can be advantageous in cases where mounting a radiation shield to the board <NUM> is obstructed from one of the first and second board sides <NUM>, <NUM> (e.g. by another radiation shield).

In the illustrated example, eight apertures <NUM><NUM>-<NUM> are evenly distributed along each of the third and fourth board edges <NUM>, <NUM>. The apertures <NUM><NUM> are located proximate to the first board edge <NUM>, and the apertures <NUM> are located proximate to the second board edge <NUM>. Accordingly, the apertures <NUM><NUM>-<NUM> as illustrated are distributed along almost the entire length of the third and fourth board edges <NUM>, <NUM> (i.e. end-to-end). Such a widespread distribution of apertures <NUM> can provide for a greater range in potential mounting locations for radiation shields (e.g. radiation shields <NUM>, <NUM>, <NUM>, <NUM>). In one or more alternative examples, the apertures <NUM> may be unevenly distributed along one or each of the third and fourth board edges <NUM>, <NUM>. Alternatively, or in addition, the apertures <NUM> may be distributed along only a portion (e.g. <NUM>% or <NUM>%) the length of the third and fourth board edges <NUM>, <NUM>.

As exemplified by comparison of <FIG>, the distribution of apertures <NUM><NUM>-<NUM> along each of the third and fourth board edges <NUM>, <NUM> allows for the mounting of the radiation shields <NUM>, <NUM>, <NUM>, <NUM> at multiple locations (e.g. according to the needs of the medical procedure). The distance between adjacent apertures <NUM> can provide valuable versatility in the positioning of the radiation shields.

In one or more alternative examples, more or less apertures <NUM> may be provided along one or each of the third and fourth board edges <NUM>, <NUM>. As an example, ten apertures <NUM> may be located along each of the third and fourth board edges <NUM>, <NUM>. As another example, two apertures <NUM> may be located along the third board edge <NUM> and five apertures <NUM> may be located along the fourth board edge <NUM>. In general, the greater the number of apertures <NUM> along each of the third and fourth board edges <NUM>, <NUM>, the greater the number of potential mounting locations for each radiation shield. However, when the apertures <NUM> are located too close to each other, the strength of the board material between adjacent apertures <NUM> can be compromised (i.e. weakened). In selecting an appropriate number of apertures <NUM> to provide along each of the third and fourth board edges <NUM>, <NUM>, a balance can be struck between versatility and durability.

In the illustrated example, each one of the apertures <NUM> distributed along the third board edge <NUM> is longitudinally aligned with a corresponding one of the apertures <NUM> distributed along the opposite fourth board edge <NUM>. This alignment may provide for one or more advantages. For example, it may provide uniformity in mounting locations for the radiation shields between each of the third and fourth board edges <NUM>, <NUM>. Alternatively, or in addition, it may allow the board <NUM> to be inverted without significant change in the location of the apertures <NUM>.

As perhaps best shown in <FIG>, each aperture <NUM> in the board <NUM> includes an opposed pair of retention regions <NUM> extending away from an insertion region <NUM>. In the illustrated example, the retention regions <NUM> of the apertures <NUM> located along each of the third and fourth board edges <NUM>, <NUM> extend in the longitudinal direction <NUM> from the insertion region <NUM>. In the illustrated example, the retention regions <NUM> of the apertures <NUM> located along the first board edge <NUM> extend in the lateral direction <NUM> from the insertion region <NUM>. In one or more alternative examples, the retention regions <NUM> of any one of the apertures <NUM> may extend an angle to the longitudinal direction <NUM> from the insertion region <NUM>.

As previously described, each radiation shield has at least one peg that can be engaged with any one of the apertures <NUM> in the board <NUM>. The pegs are configured to be received in the insertion region <NUM> of any one of the apertures <NUM> and slidably engaged with one of the retention regions <NUM> of that aperture. For example, referring to <FIG>, the peg <NUM> of radiation shield <NUM> can be inserted into the insertion region <NUM> of any one of the apertures <NUM> in the board <NUM> and then slid toward one of the two retention regions <NUM> of that aperture. The reduced size of the retention regions <NUM> compared to the insertion region <NUM> can prevent the peg <NUM> from disengaging the aperture <NUM> (unless slid back to the insertion region <NUM>). The peg <NUM> has a head <NUM> that is smaller than the insertion region <NUM> yet larger than the retention regions <NUM>. Accordingly, once the peg <NUM> has been slid from the insertion region <NUM> to one of the retention regions <NUM>, the size of the head <NUM> can impede disengagement of the peg <NUM> from that retention region <NUM>.

The ability to mate each peg of a radiation shield in either retention region <NUM> can allow the same aperture <NUM> to be engaged by the pegs of two different radiation shields at the same time. This can be particularly advantageous in cases where it is desirable to have two radiation shields mounted to the board <NUM> in the same region. For example, as shown in <FIG>, the aperture <NUM><NUM> at the fourth board edge <NUM> is engaged with pegs of both the radiation shield <NUM> and the radiation shield <NUM> (i.e. one retention region <NUM> is engaged with a peg <NUM> of the adjustable screen assembly <NUM> while the other retention region <NUM> is engaged with a peg <NUM> of the skirt <NUM>). As exemplified in <FIG>, the presence of the opposed pair of retention regions <NUM> allows for an above table radiation shield (e.g. the adjustable screen assembly <NUM>) and a below table radiation shield (e.g. the skirt <NUM>) to be engaged with the same aperture <NUM> at the same time.

The board <NUM> can include a plurality of alignment slots <NUM> located along at least one of the board edges <NUM>, <NUM>, <NUM>, <NUM>. As will be described below, the location of the alignment slots <NUM> can correspond to the location of the apertures <NUM> in the board <NUM>. As perhaps best shown in <FIG> and <FIG>, the board <NUM> includes a plurality of alignment slots <NUM> located along each of the first, third and fourth board edges <NUM>, <NUM>, <NUM>. In the illustrated example, the alignment slots <NUM> are located inboard of the apertures <NUM>. In an alternative example, the alignment slots <NUM> can be located outboard of the apertures <NUM>.

In the illustrated example, seven alignment slots <NUM><NUM>-<NUM> are evenly distributed along each of the third and fourth board edges <NUM>, <NUM>. In the illustrated example, two alignment slots <NUM> are positioned adjacent to each of the two apertures <NUM> located at the first board edge <NUM> (i.e. four alignment slots <NUM> in total). In one or more alternative examples, more or less alignment slots <NUM> may be distributed along one or each of the first, third and fourth board edges <NUM>, <NUM>, <NUM>.

As with the apertures <NUM>, each alignment slot <NUM> is located in one of the board overhang regions <NUM>, <NUM> and <NUM> that are defined while the board <NUM> is positioned on the procedure table. In some examples, the apertures <NUM> may be located along only one or two of the first, third and fourth board edges <NUM>, <NUM>, <NUM>. In these examples, only the edges <NUM>, <NUM>, <NUM> on which the apertures <NUM> are located need to include alignment slots <NUM>.

Each radiation shield can have an alignment flange (e.g. see alignment flange <NUM> of radiation shield <NUM> in <FIG>). The alignment flange can be received in one of the alignment slots <NUM> in the board <NUM>. Which alignment slot <NUM> receives the alignment flange of the radiation shield depends on which of the apertures <NUM> receive its peg(s). To ensure fit, the arrangement of the pegs(s) and the alignment flange of each radiation shield can correspond to the arrangement of the apertures <NUM> and the alignment slots <NUM> in the board <NUM>. For example, referring to <FIG>, the radiation shield <NUM> has a peg <NUM> and an alignment flange <NUM> that are specifically arranged to correspond with the location of apertures <NUM> and alignment slots <NUM> in the board <NUM> (<FIG>).

Engagement between an alignment flange of a radiation shield and an alignment slot <NUM> in the board <NUM> can provide one or more advantages. For example, when mounting the radiation shield to the board <NUM>, this engagement can help align the peg(s) with the apertures <NUM> in the board <NUM> by limiting relative rotation between the radiation shield and the board <NUM>. Alternatively, or in addition, engagement between an alignment flange of a radiation shield and an alignment slot <NUM> can improve the stability of the connection between that radiation shield and the board <NUM>.

Engagement between an alignment flange of a radiation shield and an alignment slot <NUM> in the board <NUM> can also facilitate mounting and/or removal of that radiation shield from the board <NUM>. The alignment flange of each radiation shield is smaller than the alignment slots <NUM> in the board <NUM>. Accordingly, once an alignment flange is received in one of the alignment slots <NUM>, it can slide (i.e. side-to-side) within that alignment slot <NUM>. In the illustrated example, the alignment slots <NUM> are positioned relative to the apertures <NUM> so that they restrict the peg(s) of the radiation shield to sliding between (i) the insertion region <NUM> of an aperture <NUM> and (ii) one of the two retention regions <NUM> of that aperture <NUM>. While removing the radiation shield, contact between the alignment flange and alignment slot <NUM> can prevent the peg(s) from sliding past the insertion region <NUM> and into the other retention region <NUM>.

The board <NUM> may be formed of a number of suitable materials, e.g. plastics, metals, carbon fiber, etc. In some examples, the board <NUM> is formed of a unitary piece of polycarbonate material. Polycarbonates are strong and durable materials that are easily worked, molded and thermoformed. In addition, polycarbonates can be more radiolucent than other materials, which can reduce the amount of radiation needed during medical imaging.

With reference to <FIG>, the board <NUM> can have a board length in the longitudinal direction <NUM> between about <NUM> and about <NUM>, or between about <NUM> and about <NUM>. The board <NUM> can have a board width in the lateral direction <NUM> between about <NUM> and about <NUM>, or between about <NUM> and about <NUM>. The board <NUM> can have a board thickness in the vertical direction <NUM> between about <NUM> and about <NUM>, or between about <NUM> and about <NUM>. These dimensions are intended to be illustrative but non-limiting. Various configurations are possible.

As perhaps best shown in <FIG> and <FIG>, the board <NUM> includes a pair of void regions <NUM>. The void regions <NUM> can be cutouts of the board <NUM>. Alternatively, the board <NUM> may be formed with the void regions <NUM>. In the illustrated example, the void regions <NUM> are separated by a linking segment <NUM> that acts to maintain the structural integrity of the board <NUM>. The void regions <NUM> in the board <NUM> can provide several advantages. For example, the void regions <NUM> may decrease impedance during medical imaging and thereby avoid degradation of medical image quality. The void regions <NUM> can reduce the amount of board material in the path of the x-ray beam. Alternatively, or in addition, the void regions <NUM> may reduce the weight of the board <NUM>, thereby making it easier to install and/or move around.

Reference is now made to <FIG>, which illustrate a body shield assembly, referred to generally as <NUM>, for shielding a patient supported above the procedure table from radiation. As shown, the body shield assembly <NUM> includes a track <NUM> and a pair of movable shield members <NUM>. In alternative examples, the body shield assembly <NUM> may include a greater (e.g. <NUM>-<NUM>) or a smaller (e.g. one) number of shield members <NUM>.

The track <NUM> extends in a longitudinal direction <NUM> between first and second track ends <NUM>, <NUM>. The track <NUM> can be mounted to the board <NUM> along one of the third and fourth board edges <NUM>, <NUM> (e.g. see <FIG> and <FIG>). To aid with understanding, <FIG> includes a direction legend, in which the longitudinal direction <NUM>, a lateral direction <NUM>, and a vertical direction <NUM> are shown.

The body shield assembly <NUM> can be mounted to the board <NUM> either before or after the patient is positioned on the procedure table. The track <NUM> includes at least one peg that can engage with any one of the apertures <NUM> to mount the body shield assembly <NUM> to the board <NUM>. Referring to <FIG>, the track <NUM> as illustrated includes a pair of spaced apart pegs <NUM>. The stability of the connection between the track <NUM> and the board <NUM> can be improved by spacing the pegs <NUM> apart, e.g. as shown. To ensure fit, the distance between the pegs <NUM> of the track <NUM> can correspond to the distance between multiple pairs of the apertures <NUM> in the board <NUM>. For example, if the distance between the pegs <NUM> is <NUM>, the board <NUM> can have a plurality of aperture pairs that are similarly spaced apart by <NUM>. In the illustrated example, the track <NUM> can be mounted at multiple locations along either of the third and fourth board edges <NUM>, <NUM>. For example, <FIG> shows the track <NUM> mounted along the fourth board edge <NUM> with the pegs <NUM> correspondingly engaged with the apertures <NUM><NUM> and <NUM><NUM>.

Referring again to <FIG>, the pegs <NUM> as illustrated extend downwardly and perpendicularly from the track <NUM>. The pegs <NUM> are configured to be received in the insertion region <NUM> of corresponding apertures <NUM> and slidably engaged with one of the retention regions <NUM> of those apertures. As previously described, the reduced size of the retention regions <NUM> compared to the insertion region <NUM> can prevent the pegs <NUM> from disengaging the apertures <NUM> (unless slid back to the insertion regions <NUM>).

Before the medical procedure, the patient can be transferred onto the procedure table (e.g. from a stretcher). The side from which the patient is transferred onto the procedure table can be fixed and/or dependent on room setup. The ability to mount the track <NUM> along either one of the third and fourth board edges <NUM>, <NUM> allows it to be mounted on the board edge opposite to the side of the procedure table used for patient transfer (i.e. thereby getting it out of the way).

Referring still to <FIG>, the track <NUM> as illustrated includes an alignment flange <NUM> located between the pegs <NUM>. The alignment flange <NUM> extends downwardly and perpendicularly from the track <NUM>. While mounting the track <NUM> to the board <NUM>, the alignment flange <NUM> is received in a corresponding alignment slot <NUM>. Which alignment slot <NUM> receives the alignment flange <NUM> of the track <NUM> depends on which of the apertures <NUM> in the board <NUM> receive the pegs <NUM>. To ensure fit, the arrangement of the pegs <NUM> and the alignment flange <NUM> of the track <NUM> correspond to the arrangement of the apertures <NUM> and the alignment slots <NUM> in the board <NUM>. This can allow the track <NUM> to be mounted at multiple locations along either of the third and fourth board edges <NUM>, <NUM>. For example, <FIG> shows the track <NUM> mounted at the board edge <NUM> with its alignment flange <NUM> received in the alignment slot <NUM><NUM>. The pegs <NUM> and alignment flange <NUM> can cooperate to simplify installation and/or improve the stability of the connection between the track <NUM> and the board <NUM>. In some examples, the track <NUM> may not include an alignment flange <NUM>.

Referring to <FIG>, the track <NUM> as illustrated includes a compression screw <NUM>. Once the track <NUM> is mounted to the board <NUM>, e.g. as described above, the compression screw <NUM> can be tightened into the board <NUM>. As perhaps best shown in <FIG> and <FIG>, the board <NUM> as illustrated includes a plurality of threaded openings <NUM> to receive the compression screw <NUM>. Each of the threaded openings <NUM> in the board <NUM> are located relative to the apertures <NUM> and alignment slots <NUM> so that is position aligns with the position of the compression screw <NUM> of the track <NUM>. In this way, the compression screw <NUM> may be used to limit relative movement between the track <NUM> and the board <NUM>, thereby stabilizing the connection between the body shield assembly <NUM> and the board <NUM>. Tightening compression screw <NUM> into the board <NUM> can also limit unintentional dismounting of the track <NUM> from the board <NUM>. The compression screw <NUM> can be loosened prior to dismounting the track <NUM> from the board <NUM>. In some examples, the track <NUM> may not include a compression screw <NUM>.

Referring again to <FIG>, each shield member <NUM> extends in the lateral direction <NUM> between first and second shield edges <NUM>, <NUM>. The first shield edge <NUM> is attached to and slidable along the track <NUM>. The shield member <NUM> can be slidably attached to the track <NUM> in a number of suitable manners. In the illustrated example, a slider <NUM> attaches the first shield edge <NUM> to the track <NUM>. As shown in <FIG>, the slider <NUM> has a longitudinally extending groove <NUM> that receives the track <NUM>.

With reference to <FIG>, the shield members <NUM> are independently slidable along the track <NUM> between an adjoined arrangement and a spaced apart arrangement. <FIG> shows the shield members <NUM> in the adjoined arrangement. In the adjoined arrangement, the shield members <NUM> abut each other. Accordingly, in the adjoined arrangement, the shield members <NUM> collectively form one larger shield. In some examples, the shield members <NUM> can be partially overlapped to avoid any gap being defined between them.

<FIG> shows the shield members <NUM> in the spaced apart arrangement. In the spaced apart arrangement, the shield members <NUM> define a longitudinal gap <NUM> therebetween. The gap <NUM> can be adjusted by sliding one or each of the shield members <NUM> along the track <NUM>. The track <NUM> has a track length in the longitudinal direction <NUM> (i.e. between the first and second track ends <NUM>, <NUM>). In <FIG>, the gap <NUM> defined between the shield members <NUM> is maximized for the given track length. In some examples, the gap <NUM> is adjustable between about <NUM> and about <NUM>.

All else being equal, the longer the track length, the larger the gap <NUM> that can be defined between the shield members <NUM>. The track length can be between about <NUM> and about <NUM>, or between about <NUM> and about <NUM>. These dimensions are intended to be illustrative but non-limiting. In some examples, the shield members <NUM> can be prevented from disengaging (i.e. sliding off) the track <NUM> at each of the first and second tracks ends <NUM>, <NUM>. For example, an endcap (not shown) can be mounted at the first and second tracks ends <NUM>, <NUM> to prevent disengagement of the shield members <NUM> due to over sliding.

One can position the shield members <NUM> between the adjoined and the spaced apart arrangements according to the needs of the medical procedure and/or the patient's size/height. For example, the shield members <NUM> can be positioned in the adjoined arrangement to cover the patient's pelvis and abdomen while performing a transradial cardiac catheterization. Alternatively, the shield members <NUM> can be positioned in the spaced apart arrangement to cover a patient's chest and pelvis while leaving a gap to access the abdomen. For example, referring to <FIG> shows the shield members <NUM> covering the abdomen and upper legs of a patient <NUM> that is lying on a procedure table <NUM>.

Furthermore, some medical procedures require unplanned access to areas of the patient's body that are initially covered by the shield members <NUM>. In these cases, those in attendance can adjust the position of one or each of the shield members <NUM> during the medical procedure to expose an area of interest, e.g. a patient's groin for femoral arterial access. The ability to quickly reposition the shield members <NUM> by sliding them along the track <NUM> can allow for dynamic adjustments while maintaining a high level of protection from radiation and sterility.

The shield members <NUM> have a shield width in the lateral direction <NUM> (i.e. between the first and second shield edges <NUM>, <NUM>). The shield width can be between about <NUM> and about <NUM>, or between about <NUM> and about <NUM>. These dimensions are intended to be illustrative but non-limiting. In use, the shield members <NUM> extend around the patient's body (i.e. from side-to-side) to impede passage of radiation. In cases where the shield members <NUM> do not extend all the way around the patient's body, the exposed area can be unprotected. Given the variability of patient sizes, a shield width can be selected to be sufficient to extend around the torsos of large patients.

As best shown in <FIG>, the shield members <NUM> are flexible along the entire shield width. This flexibility can allow the shield members <NUM> to take the shape of the patient's body (e.g. torso or legs depending on position). In <FIG>, the shield members <NUM> are shown how they would look while draped over a patient's torso. When not in use, the shield members <NUM> can lie flat.

With reference to <FIG>, the shield members <NUM> have a shield length in the longitudinal direction <NUM>. The shield length can be between about <NUM> and about <NUM>, or between about <NUM> and about <NUM>. These dimensions are intended to be illustrative but non-limiting. In the illustrated example, the shield members <NUM> have the same shield length. In one or more alternative examples, the shield members <NUM> may have different shield lengths. For example, one shield member <NUM> may have a shield length twice that of the other shield member <NUM>. Various configurations are possible.

The shield members <NUM> can be formed at least partially of substantially radiopaque material, e.g. for example, lead, tin, antimony, tungsten or bismuth. In some examples, the shield members <NUM> are formed of vinyl coated lead rubber. The vinyl coating can improve safety by preventing direct contact with lead.

In some examples, the second shield edge <NUM> can be magnetically secured to the board <NUM> at one of the third and fourth board edges <NUM>, <NUM>. For example, the shield members <NUM> can include one or more shield magnets (not shown) disposed along the second shield end <NUM>. The one or more shield magnets can collectively produce a magnetic field. The board <NUM> can include one or more board magnets (not shown) disposed along one or each of the third and fourth board edges <NUM>, <NUM>. The one or more board magnets can collectively produce a magnetic field. In close proximity, interaction between the magnetic fields produced by the shield and board magnets can magnetically attract the second shield edge <NUM> to the board <NUM>. A magnet's orientation may be described by reference to its North (N) and South (S) magnetic poles. When matching poles (i.e. N-N or S-S) of two magnets are brought into proximity to each other, the magnetic fields of those magnets produce an attraction force that urges the magnets to come together (as opposed to a repulsion force that urges the magnet to separate). Magnetically securing the second shield edge <NUM> to the board <NUM> can prevent the shield member <NUM> from slipping off the patient once it has been appropriately positioned. This may be particularly important in cases where the shield members <NUM> are covered with a sterile bag that makes them more slippery.

Reference is now made to <FIG>, which illustrate an adjustable screen assembly, referred to generally as <NUM>, for shielding radiation scatter above the procedure table. As shown, the adjustable screen assembly <NUM> includes a bracket <NUM>, a shaft <NUM>, a screen <NUM> and a clamping mechanism, referred to generally as <NUM>. The bracket <NUM> has a mount <NUM> and a ledge <NUM> that extends away from the mount <NUM>. In the illustrated example, the ledge <NUM> extends generally downwardly and perpendicularly from mount <NUM>, thereby giving the bracket <NUM> an L-shape appearance.

The adjustable screen assembly <NUM> can be mounted to the board <NUM> either before or after the patient is positioned on the procedure table. The mount <NUM> includes at least one peg that can engage with any one of the apertures <NUM> to mount the adjustable screen assembly <NUM> to the board <NUM>. Referring to <FIG>, the mount <NUM> as illustrated includes a single peg <NUM>. The adjustable screen assembly <NUM> can be mounted to the board <NUM> (<FIG>) by engaging the peg <NUM> of the mount <NUM> with any one of the apertures <NUM> in the board <NUM>. Accordingly, in the illustrated example, the bracket <NUM> can be mounted at multiple locations along either of the first, third and fourth board edges <NUM>, <NUM>, <NUM>. For example, <FIG> shows the mount <NUM> mounted at the board edge <NUM> with the peg <NUM> engaged with the aperture <NUM><NUM>.

Referring again to <FIG>, the peg <NUM> as illustrated extends downwardly and perpendicularly from the mount <NUM>. The peg <NUM> is configured to be received in the insertion region <NUM> of any one of the apertures <NUM> and slidably engaged with one of the retention regions <NUM> of that aperture. As previously described, the reduced size of the retention regions <NUM> compared to the insertion region <NUM> can prevent the peg <NUM> from disengaging the aperture <NUM> (unless slid back to the insertion region <NUM>).

Referring still to <FIG>, the mount <NUM> as illustrated includes an alignment flange <NUM>. The alignment flange <NUM> extends downwardly and perpendicularly from the mount <NUM>. While mounting the bracket <NUM> to the board <NUM>, the alignment flange <NUM> is received in a corresponding alignment slot <NUM>. Which alignment slot <NUM> receives the alignment flange <NUM> of the mount <NUM> depends on which one of the apertures <NUM> in the board <NUM> receives the peg <NUM>. To ensure fit, the arrangement of the peg <NUM> and the alignment flange <NUM> of the mount <NUM> correspond to the arrangement of the apertures <NUM> and the alignment slots <NUM> in the board <NUM>. This can allow the mount <NUM> to be mounted at multiple locations along either of the first, third and fourth board edges <NUM>, <NUM>, <NUM>. For example, <FIG> shows the mount <NUM> mounted along the board edge <NUM> with its alignment flange <NUM> received in the alignment slot <NUM><NUM>. The peg <NUM> and alignment flange <NUM> can cooperate to simplify installation and/or improve the stability of the connection between the mount <NUM> and the board <NUM>. In some examples, the mount <NUM> may not include an alignment flange <NUM>.

Referring to <FIG>, the mount <NUM> as illustrated includes a compression screw <NUM>. Once the bracket <NUM> is mounted to the board <NUM>, e.g. as described above, the compression screw <NUM> can be tightened into the board <NUM>. The threaded openings <NUM> (shown in <FIG> and <FIG>) in the board <NUM> are specifically located to receive the compression screw <NUM> of the mount <NUM>. In this way, the compression screw <NUM> may be used to limit relative movement between the bracket <NUM> and the board <NUM>, thereby stabilizing the connection between the adjustable screen assembly <NUM> and the board <NUM>. Tightening compression screw <NUM> into the board <NUM> can also limit unintentional dismounting of the bracket <NUM> from the board <NUM>. The compression screw <NUM> can be loosened prior to dismounting the bracket <NUM> from the board <NUM>. In some examples, the bracket <NUM> may not include a compression screw <NUM>.

Referring to <FIG>, the shaft <NUM> extends between first and second shaft ends <NUM>, <NUM> along a shaft axis <NUM>. The screen <NUM> is connected to and supported by the shaft <NUM>. As shown, the screen <NUM> extends perpendicularly from the shaft <NUM> proximate to the second shaft end <NUM>. The clamping mechanism <NUM> is attached to the ledge <NUM> of bracket <NUM>. The clamping mechanism <NUM> is configured to clamp the shaft <NUM> to maintain a position of the screen <NUM> above the board <NUM> (e.g. <FIG>).

In the illustrated example, the clamping mechanism <NUM> includes a rotary joint <NUM>. As shown in <FIG>, the rotary joint <NUM> has a shaft opening <NUM> in which the shaft <NUM> is received. The rotary joint <NUM> is rotatable relative to the ledge <NUM> about a rotation axis <NUM> (<FIG>) that is orthogonal to the shaft axis <NUM>. The rotary joint <NUM> can be rotated about the rotation axis <NUM> to vary an angle between the shaft <NUM> and the bracket <NUM>. For example, <FIG> show the shaft <NUM> at different angles relative to the mount <NUM> of the bracket <NUM>. In use, varying the angle between the shaft <NUM> and the bracket <NUM> adjusts the position of the screen <NUM> above the board <NUM> (e.g. see <FIG> and <FIG>).

Referring to <FIG>, the ledge <NUM> includes a plurality of holes <NUM> arranged circumferentially around the rotary joint <NUM>. The clamping mechanism <NUM> includes a tack <NUM> which can engage with any one of the holes <NUM> in the ledge <NUM>. As shown, the tack <NUM> projects radially from the rotary joint <NUM> so as to rotate concurrently with the rotatory joint <NUM>. In the illustrated example, the tack <NUM> includes a spring-loaded ball bearing that can be received within any one of the holes <NUM> when they are appropriately aligned. While the ball bearing of the tack <NUM> is received within one of the holes <NUM>, an angle between the shaft <NUM> and the mount <NUM> is maintained. This angle is determined by which one of the holes <NUM> in the ledge <NUM> is engaged by the tack <NUM>. The shaft <NUM> can be rotated about the rotation axis <NUM> by supplying a force that is sufficient to disengage the ball bearing of the tack <NUM> from the hole <NUM> in which it is received. The tack <NUM> can be used to maintain the shaft <NUM> in at least two angles relative to the mount <NUM> of the bracket <NUM>. All else being equal, the greater the number of holes <NUM> arranged circumferentially around the rotary joint <NUM>, the greater number of angles in which the shaft <NUM> can be maintained relative to the mount <NUM>.

<FIG> shows the tack <NUM> holding the shaft <NUM> in an upright position in which an angle θ<NUM> between the shaft <NUM> and the mount <NUM> is about <NUM>°. <FIG> shows the tack <NUM> holding the shaft <NUM> in an angled position in which an angle θ<NUM> between the shaft <NUM> and the mount <NUM> is about <NUM>°. To adjust the position of the screen <NUM>, one can vary the angle between the shaft <NUM> and the mount <NUM> by engaging the tack <NUM> with a different hole <NUM> in the ledge <NUM>. The operator can push the screen <NUM> out of the field of view when needing to visualize an area of interest and then easily and reliably reposition the screen <NUM> back to the initial protective position. This can be particularly advantageous during medical procedures in which the screen <NUM> is often moved in and out of the field of view multiple times (e.g. during a pacemaker implantation). For example, the screen <NUM> can be alternated between an unobstructed position for direct visualization and a radiation shielding position during fluoroscopy.

In the illustrated example, the shaft <NUM> can be rotated about the shaft axis <NUM> to vary an angle between the screen <NUM> and the bracket <NUM>. That is, the shaft <NUM> can spin within the shaft opening <NUM>. In use, varying the angle between the screen <NUM> and the bracket <NUM> adjusts the position of the screen <NUM> above the board <NUM>. Accordingly, in the illustrated example, the shaft <NUM> is adjustable with at least two rotational degrees of freedom relative to the bracket <NUM> (i.e. it rotates about at least the shaft axis <NUM> and the rotation axis <NUM>).

In the illustrated example, the shaft <NUM> can be translated through the shaft opening <NUM> to vary a distance between the screen <NUM> and the mount <NUM> of the bracket <NUM>. In use, varying the distance between the screen <NUM> and the bracket <NUM> adjusts the position of the screen <NUM> above the board <NUM>. This can allow one performing the procedure to adjust position of the screen <NUM> according to his or her height. As best shown in <FIG>, the first shaft end <NUM> includes a stopper <NUM> having a diameter larger than that of the shaft opening <NUM>. Accordingly, the stopper <NUM> can prevent the shaft <NUM> from being pulled through the shaft opening <NUM> while adjusting the distance between the screen <NUM> and the bracket <NUM>.

Referring still to <FIG>, the clamping mechanism <NUM> includes a compression screw <NUM>. The compression screw <NUM> can be tightened into the shaft <NUM> via a threaded hole in the rotary joint <NUM> to restrict translation and rotation of the shaft <NUM> in the shaft opening <NUM>. As needed, the compression screw <NUM> can be loosened to allow translation and rotation of the shaft <NUM> in the shaft opening <NUM>. In the illustrated example, the compression screw <NUM> includes an oversized grip <NUM> at its head to facilitate tightening and loosening.

The screen <NUM> can include one or more grips or handles to facilitate adjusting its position relative to the board <NUM>. Alternatively, or in addition, the one or more grips or handles can facilitate mounting the adjustable screen assembly <NUM> to the board <NUM>. In the illustrated example, the screen <NUM> includes a pair of handles <NUM> that extend from opposite sides of the screen <NUM>. Specifically, the handle <NUM> farthest from the shaft <NUM> can be used to push and pull the screen <NUM> in and out of the field of view. Alternatively, in some examples, handles <NUM> may not be provided.

With reference to <FIG>, the screen <NUM> includes a frame member <NUM> extending away from the shaft axis <NUM> and a plurality of strips <NUM> suspended from the frame member <NUM>. In the illustrated example, the frame member <NUM> is integral with the second shaft end <NUM> and extends generally perpendicularly from the shaft axis <NUM>, thereby giving the shaft <NUM> and the frame member <NUM> an L-shape appearance. Each of the strips <NUM> extend between opposed first and second strip edges <NUM>, <NUM>. The first strip edges <NUM> are connected to the frame member <NUM> so that each of the strips <NUM> can tilt out of the field of view when the screen <NUM> is pushed aside. The first strips edges <NUM> can be mounted to the frame member <NUM> by one or more mechanical fasteners, e.g. screws, clamps, etc. In some examples, the strips <NUM> can be removed and/or replaced as needed.

The strips <NUM> have a strip length between the first and second strip edges <NUM>, <NUM>. The strip length can be between about <NUM> and about <NUM>, or between about <NUM> and about <NUM>. These dimensions are intended to be illustrative but non-limiting. In use, the strips <NUM> impede passage of radiation scatter directed at the head and/or neck of the individual performing the medical procedure.

The strips <NUM> can be formed at least partially of substantially radiopaque material, e.g. for example, lead, tin, antimony, tungsten or bismuth. In some examples, the strips <NUM> are formed of vinyl coated lead rubber. In some examples, the strips <NUM> are formed of the same material as shield members <NUM> (<FIG>). In some examples, the strips <NUM> can be partially overlapped to avoid any gap being defined between them. In the illustrated example, five strips <NUM><NUM>-<NUM> are arranged continuously along the frame member <NUM>. In one or more alternative examples, more (e.g. <NUM> to <NUM>) or less strips <NUM> (e.g. one) may be suspended from the frame member <NUM>.

In some examples, the strips <NUM> are flexible along the entire strip length. The flexibility of the strips <NUM> can provide more room for hands to manipulate equipment under the screen <NUM>, while maintaining a high level of protection from radiation scatter.

Referring again to <FIG>, the skirt <NUM> is shown mounted to the board <NUM> to shield radiation scatter below the procedure table. As shown, the skirt <NUM> includes a panel <NUM>. The panel <NUM> can be formed at least partially of substantially radiopaque material, e.g. for example, lead, tin, antimony, tungsten or bismuth. In some examples, the panel <NUM> is formed of a unitary piece of vinyl coated lead rubber. In some examples, the panel <NUM> is formed of the same material as the strips <NUM> (<FIG>) and/or the shield members <NUM> (Figure <NUM>).

The skirt <NUM> can be mounted to the board <NUM> either before or after the patient is positioned on the procedure table. The skirt <NUM> includes at least one peg that can engage with any one of the apertures <NUM>. Referring to <FIG>, the skirt <NUM> as illustrated includes a pair of spaced apart pegs <NUM>. The stability of the connection between the panel <NUM> and the board <NUM> can be improved by spacing the pegs <NUM> apart, e.g. as shown. To ensure fit, the distance between the pegs <NUM> of the skirt <NUM> can correspond to the distance between multiple pairs of the apertures <NUM> in the board <NUM>. For example, if the distance between the pegs <NUM> is <NUM>, the board <NUM> can have a plurality of aperture pairs that are similarly spaced apart by <NUM>.

In the illustrated example, the pegs <NUM> extend upwardly and perpendicularly from a top end of the panel <NUM>. The pegs <NUM> are configured to be received in the insertion region <NUM> of corresponding apertures <NUM> and slidably engaged with one of the retention regions <NUM> of those apertures. As previously described, the reduced size of the retention regions <NUM> compared to the insertion region <NUM> can prevent the pegs <NUM> from disengaging the apertures <NUM> (unless slid back to the insertion regions <NUM>).

In the illustrated example, the skirt <NUM> can be mounted at multiple locations along either of the third and fourth board edges <NUM>, <NUM>. For example, <FIG> shows the skirt <NUM> mounted along the third board edge <NUM>. The apertures <NUM> engaged by the pegs <NUM> can also be located laterally across from each other on opposite board edges <NUM>, <NUM>. That is, one of the apertures <NUM> engaged by the pegs <NUM> of the skirt <NUM> can be located at the third board edge <NUM> and the other of the apertures <NUM> engaged by pegs <NUM> of the skirt <NUM> can be located at the fourth board edge <NUM>. For example, <FIG> shows the skirt <NUM> mounted to the board <NUM> with its pegs <NUM> correspondingly received in the apertures <NUM><NUM> at respective board edges <NUM>, <NUM>. While in this position, the skirt <NUM> may shield a staff member stationed at the patient's head from radiation scatter below the procedure table.

The skirt <NUM> can be mounted to the board <NUM> in a position where it is well suited to protect those in attendance from below table radiation scatter. In some cases, two or more skirts <NUM> can be mounted to the board <NUM> at the same time to offer more protection. This can be particularly advantageous in cases where staff members are stationed in multiple locations around the procedure table.

Referring to <FIG>, the panel <NUM> has a panel height in the vertical direction <NUM>. The panel height can correspond to the distance between the top of the procedure table and the floor. In some examples, the panel <NUM> extends all the way to the floor. The panel height can between about <NUM> and about <NUM>, or between about <NUM> and about <NUM>. These dimensions are intended to be illustrative but non-limiting.

The skirt <NUM> can include one or more handles or grips to facilitate its mounting and/or dismounting from the board <NUM>. In the illustrated example, the skirt <NUM> includes a pair of handles <NUM> that extend outwardly from opposite sides of the panel <NUM>. Alternatively, in some examples, handles <NUM> may not be provided.

Referring again to <FIG>, the shielded arm support <NUM> is shown mounted to the board <NUM> to support one of the patient's arms and/or shield one of more attending staff members from radiation scatter during the medical procedure. In some examples, the apparatus <NUM> can include features of the arm support apparatuses disclosed in <CIT>, the entire contents of which are hereby incorporated herein by reference. As shown, the shielded arm support <NUM> includes a base <NUM>, an arm pad <NUM>, a first barrier <NUM> and a second barrier <NUM>. In use, the arm pad <NUM> supports one of the patient's arms, and the first and second barriers <NUM>, <NUM> can shield an attending staff member from scatter radiation during the medical procedure.

The shielded arm support <NUM> can be mounted to the board <NUM> either before or after the patient is positioned on the procedure table. The base <NUM> includes at least one peg that can engage with any one of the apertures <NUM> to mount the shielded arm support <NUM> to the board <NUM>. Referring to <FIG>, the base <NUM> as illustrated includes a pair of spaced apart pegs <NUM>. The base <NUM> as illustrated also includes an alignment flange <NUM>. In mounting the base <NUM> to the board <NUM>, the pegs <NUM> and alignment flange <NUM> can function in a similar fashion as the pegs <NUM> and the alignment flange <NUM> of the track <NUM> described above. In the illustrated example, the base <NUM> can be mounted at multiple locations along either of the third and fourth board edges <NUM>, <NUM>. For example, <FIG> shows the base <NUM> mounted along the third board edge <NUM>, while <FIG> shows the base <NUM> mounted along the fourth board edge <NUM>.

In some examples, the base <NUM> can include a compression screw (not shown, but can be similar to the compression screw <NUM> of the track <NUM> in <FIG>). The compression screw may be used to limit relative movement between the base <NUM> and the board <NUM> thereby stabilizing the connection between the shielded arm support <NUM> and the board <NUM>.

In the illustrated example, the arm pad <NUM> is positioned on the base <NUM>. The arm pad <NUM> extends in the longitudinal direction <NUM> between first and second pad ends <NUM>, <NUM>. In some examples, the arm pad <NUM> can rest on the base <NUM>, without being attached. This can allow adjustment of the position of the arm pad <NUM> according to patient's arm length. Accordingly, in these cases, the position of the arm pad <NUM> can be customized to the patient's size without needing to move the patient and/or the base <NUM> underneath. In other examples, the arm pad <NUM> can be fixed to the base <NUM>.

Referring to <FIG>, the base <NUM> extends in the lateral direction <NUM> between a first base edge <NUM> and a second base edge <NUM> to support a width of the arm pad <NUM>. The first base edge <NUM> is hidden from view in <FIG>, but is shown in <FIG>. The first and second barriers <NUM>, <NUM> are mounted to the first and second base edges <NUM>, <NUM>, respectively. The first barrier <NUM> can be mounted to the base <NUM> by a flexible and resilient connection (e.g. a curved bracket formed of spring steel) to permit adjustment of its position.

The first barrier <NUM> extends upwardly from the first base edge <NUM> in the vertical direction <NUM> to above the arm pad <NUM>. The second barrier <NUM> extends downwardly from the second base edge <NUM> in the vertical direction <NUM>. As shown, the arm pad <NUM> is positioned laterally intermediate the first and second barriers <NUM>, <NUM>. The first and second barriers <NUM>, <NUM> are each shown to be generally planar and arranged vertically. The first and second barriers <NUM>, <NUM> can each be formed at least partially of a substantially radiopaque material, e.g. lead, tin, antimony, tungsten, or bismuth. In some examples, the first and second barriers <NUM>, <NUM> are formed of vinyl coated lead sheets.

The arm pad <NUM> as illustrated includes a proximal portion <NUM> at the first pad end <NUM>, a distal portion <NUM> at the second pad end <NUM>, and a central portion <NUM> arranged between the proximal and distal portions <NUM>, <NUM>. In use, the proximal portion <NUM> supports an arm of the patient, and the central portion <NUM> supports a hand of that arm. The portions <NUM>, <NUM>, <NUM> each include an upper surface <NUM>, <NUM>, <NUM>, respectively. In the illustrated example, each of the upper surfaces <NUM>, <NUM>, <NUM> is spaced above the base <NUM> in the vertical direction <NUM>.

Referring still to <FIG>, it can be seen that the upper surface <NUM> of the central portion <NUM> is substantially below the upper surface <NUM> of the proximal portion <NUM>. In the illustrated example, the upper surface <NUM> of the central portion <NUM> is concave in shape so that the patient's hand can be positioned below their arm. The upper surface <NUM> of the distal portion <NUM> is shown to be generally planar and horizontal, and can be used by the attending staff as a working surface. In some examples, the upper surface <NUM> of the distal portion <NUM> can be reinforced to create a stable working surface.

Referring still to <FIG>, the base <NUM> extends in the longitudinal direction <NUM> to support a length of the arm pad <NUM>. The first and second barriers <NUM>, <NUM> are each shown arranged longitudinally intermediate of the arm pad <NUM>. Furthermore, the central portion <NUM> of the arm pad <NUM> is shown arranged within a longitudinal extent of each of the first and second barriers <NUM>, <NUM>. With this arrangement, in use, the first and second barriers <NUM>, <NUM> provide radiation shielding in the vicinity of the hand of the patient.

In some examples, the arm pad <NUM> can be formed of a foam material that is clad with marine grade vinyl. The base <NUM> can be formed at least partially of a substantially radiolucent material. In some examples, the base <NUM> can be formed of a unitary piece of clear polycarbonate material.

Referring to <FIG> and <FIG>, the shielded arm support <NUM> is shown supporting a right arm <NUM> of a patient <NUM> that is lying on a procedure table <NUM>. The shielded arm support <NUM> can provide several advantages. These advantages relate to: increased radiation protection, improved visualization, greater operator convenience, and enhanced patient comfort.

In terms of increased radiation protection, the first and second radiation barriers <NUM>, <NUM> can be substantially radiopaque, and can block significantly more radiation than existing shielding equipment. The shielded arm support <NUM> can also be compatible with femoral access procedures, and provide radiation protection for such cases.

In terms of improved visualization, the polycarbonate base <NUM> can be more radiolucent than existing devices, which can reduce the amount of radiation needed during medical imaging. Furthermore, the position of the base <NUM> along one of the third and fourth board edges <NUM>, <NUM> is outside of the typical field of view (the patient's chest), which can prevent both increases in radiation and image degradation. Moreover, the positioning of the radiation barriers <NUM>, <NUM> can allow clear fluoroscopic visualization of the patient's arm.

In terms of operator convenience, beyond the patient's hand, the working surface of the distal portion <NUM> of the arm pad <NUM> can be level with the patient's wrist and provide a convenient platform upon which the attending staff can manipulate equipment. Furthermore, the contoured shapes of the upper surfaces <NUM>, <NUM> of the proximal and central portions <NUM>, <NUM> of the arm pad <NUM> can position the patient's wrist at a desirable angle, improving the attending staff's access to the patient's artery. Moreover, because the shielded arm support <NUM> can be compatible with both radial and femoral access cases, the shielded arm support <NUM> does not need to be removed between cases depending on the access site chosen.

Finally, the arm pad <NUM> can be relatively large and include contoured foam padding to provide full arm support and enhance patient comfort. Furthermore, the flexibility of the first barrier <NUM> allows for multiple positions to accommodate the patient, and because it is not rigidly attached to the base <NUM> it has some give if it is struck by the patient or the attending staff.

Reference is now made to <FIG>, which illustrate a pivotable arm support, referred to generally as <NUM>, for supporting one of the patient's arms. As shown, the pivotable arm support <NUM> includes an adjustable support <NUM>, an arm pad <NUM>, a mounting bracket <NUM> and a hinge mechanism, referred to generally as <NUM>. The adjustable support <NUM> is coupled to the mounting bracket <NUM> by the hinge mechanism <NUM>. In use, the arm pad <NUM> supports one of the patient's arms. In some examples, the adjustable support <NUM> can be formed at least partially of substantially radiopaque material, e.g. for example, lead, tin, antimony, tungsten or bismuth. In some examples, the adjustable support <NUM> can be formed of vinyl coated lead rubber.

The pivotable arm support <NUM> can be mounted to the board <NUM> either before or after the patient is positioned on the procedure table. The mounting bracket <NUM> includes at least one peg that can engage with any one of the apertures <NUM> to mount the pivotable arm assembly <NUM> to the board <NUM>. Referring to <FIG> and <FIG>, the mounting bracket <NUM> as illustrated includes a single peg <NUM>. The pivotable arm support <NUM> can be mounted to the board <NUM> (<FIG>) by engaging the peg <NUM> of the mounting bracket <NUM> with any one of the apertures <NUM> in the board <NUM>. As such, in the illustrated example, the mounting bracket <NUM> can be mounted at multiple locations along either of the third and fourth board edges <NUM>, <NUM>. For example, <FIG> shows the mounting bracket <NUM> mounted at the fourth board edge <NUM> with the peg <NUM> engaged with the aperture <NUM><NUM>.

Referring again to <FIG> and <FIG>, the peg <NUM> as illustrated extends downwardly and perpendicularly from the mounting bracket <NUM>. The peg <NUM> is configured to be received in the insertion region <NUM> of any one of the apertures <NUM> and slidably engaged with one of the retention regions <NUM> of that aperture. As previously described, the reduced size of the retention regions <NUM> compared to the insertion region <NUM> can prevent the peg <NUM> from disengaging the aperture <NUM> (unless slid back to the insertion region <NUM>).

Referring still to <FIG> and <FIG>, the mounting bracket <NUM> as illustrated includes an alignment flange <NUM>. The alignment flange <NUM> extends downwardly and perpendicularly from the mounting bracket <NUM>. While mounting the mounting bracket <NUM> to the board <NUM>, the alignment flange <NUM> is received in a corresponding alignment slot <NUM>. Which alignment slot <NUM> receives the alignment flange <NUM> of the mounting bracket <NUM> depends on which one of the apertures <NUM> in the board <NUM> receives the peg <NUM>. To ensure fit, the arrangement of the peg <NUM> and the alignment flange <NUM> of the mounting bracket <NUM> correspond to the arrangement of the apertures <NUM> and the alignment slots <NUM> in the board <NUM>. This can allow the mounting bracket <NUM> to be mounted at multiple locations along either of the third and fourth board edges <NUM>, <NUM>. For example, <FIG> shows the mounting bracket <NUM> mounted along the fourth board edge <NUM> with its alignment flange <NUM> received in the alignment slot <NUM><NUM>. The peg <NUM> and alignment flange <NUM> can cooperate to simplify installation and/or improve the stability of the connection between the mounting bracket <NUM> and the board <NUM>. In some examples, the mounting bracket <NUM> may not include an alignment flange <NUM>.

Referring to <FIG>, the mounting bracket <NUM> as illustrated includes a compression screw <NUM>. Once the mounting bracket <NUM> is mounted to the board <NUM>, e.g. as described above, the compression screw <NUM> can be tightened into the board <NUM>. The threaded openings <NUM> (shown in <FIG> and <FIG>) in the board <NUM> are specifically located to receive the compression screw <NUM> of the mounting bracket <NUM>. In this way, the compression screw <NUM> may be used to limit relative movement between the mounting bracket <NUM> and the board <NUM>, thereby stabilizing the connection between the pivotable arm support <NUM> and the board <NUM>. Tightening the compression screw <NUM> into the board <NUM> can also limit unintentional dismounting of the mounting bracket <NUM> from the board <NUM>. The compression screw <NUM> can be loosened prior to dismounting the mounting bracket <NUM> from the board <NUM>. In some examples, the mounting bracket <NUM> may not include the compression screw <NUM>.

The adjustable support <NUM> is shown to be generally planar. As shown in <FIG>, the support <NUM> includes a central cutout <NUM>, intended to reduce weight. The arm pad <NUM> is positioned on the support <NUM>. Referring to <FIG> and <FIG>, the arm pad <NUM> as illustrated is secured to the support <NUM> with a pair of straps <NUM>. The support <NUM> includes two pairs of laterally spaced apart slits <NUM> (shown in <FIG>), which are designed to accept the straps <NUM> to secure the arm pad <NUM> to the support <NUM>. In some examples, the arm pad <NUM> can be secured to either side of the support <NUM>, thereby improving versatility.

The support <NUM> can be pivoted about a longitudinal axis <NUM> by actuating a tab <NUM>. The tab <NUM> disengages locks in the hinge mechanism <NUM> to permit pivoting of the support <NUM> about the longitudinal axis <NUM>. Releasing the tab <NUM> reengages the locks to fix the support <NUM> at a desired angle relative to the mounting bracket <NUM>. In the illustrated example, the tab <NUM> is provided at the hinge mechanism <NUM>. This can allow for one handed adjustment of the support <NUM>. <FIG> show the support <NUM> and the arm pad <NUM> in a generally horizontal position (i.e. the angle between the support <NUM> and the mounting bracket is about <NUM>°). <FIG> shows the support <NUM> and the arm pad <NUM> in an upright position (i.e. the angle between the support <NUM> and the arm pad <NUM> is about <NUM> to <NUM>°). As previously described, while pivoting the support <NUM> about the longitudinal axis <NUM>, the tab <NUM> can be released to reengage the locks to fix the support <NUM> at any angle between the generally horizontal position and the upright position.

In the illustrated example, the support <NUM> has a relatively narrow proximal portion <NUM> adjacent to the hinge mechanism <NUM> and relatively large distal portion <NUM>. This arrangement may be less intrusive when pivoted upwardly towards the patient, e.g. as shown in <FIG>. The distal portion <NUM> of the support <NUM> can be appropriately sized to support a length and a width of the arm pad <NUM>.

In some cases, the pivotable arm support <NUM> and the shielded arm support <NUM> can be mounted on opposite board edges <NUM>, <NUM>. That is, one supports the patient's left arm while the other supports the patient's right arm. This can be particularly useful during medical procedures where access to both right and left radial arteries of the patient is required. In other cases, the pivotable arm support <NUM> and the shielded arm support <NUM> can be mounted on the same board edge <NUM>, <NUM> (e.g. <FIG>). This arrangement can allow the patient's arm to be fully abducted while supported on the pivotable arm support <NUM> when obtaining radial access. Subsequently, the patient's arm can be adducted to the patient's side where it rests on the shielded arm support <NUM> for the remainder of the medical procedure.

<FIG> shows the arm pad <NUM> and the support <NUM> in a generally horizontal position. The arm pad <NUM> is shown supporting a left arm <NUM> of the patient <NUM> during a medical procedure, in which the left radial artery of the patient <NUM> can be accessed, for example. At the same time, the arm pad <NUM> of the shielded arm support <NUM> is shown supporting a right arm <NUM> of the patient <NUM>. During the medical procedure, an attending staff member can remain along the right hand side relative to the patient <NUM>, and the shielded arm support <NUM> can therefore continue to shield this attending staff member from radiation scatter.

<FIG> shows the support <NUM> in an upright position in which there is about an <NUM>° angle between the support <NUM> and the mounting bracket <NUM>. This can be a more comfortable position for the patient <NUM> to maintain, after the left radial artery has been accessed, and during which images can be taken using a C-arm camera, for example.

Reference is now made to <FIG>, which illustrate the apparatus <NUM> in exemplary configurations for a number of different medical procedures. The arrangement of the various radiation shields <NUM>, <NUM>, <NUM>, <NUM> and the pivotable arm support <NUM> of the apparatus <NUM> shown across <FIG> is intended for illustrative purposes. Owing the distribution of the apertures <NUM> in the board <NUM>, there are many possible ways of configuring the apparatus <NUM>.

<FIG> show the apparatus <NUM> configured for right and left radial access, respectively. <FIG> shows the apparatus <NUM> of <FIG> but with the pivotable arm support <NUM> in an upright position to support the patient's left elbow during a medical procedure in which the left radial artery is used for access. <FIG> shows the apparatus <NUM> configured for femoral artery access. <FIG> shows the apparatus <NUM> configured for structural heart procedures in which staff members would be positioned at both the patient's side and at the head of the procedure table. <FIG> shows the apparatus <NUM> configured for a medical procedure to implant a pacemaker or defibrillator where the operator would be positioned proximate to the patient's left shoulder. The configurations of the apparatus <NUM> shown in <FIG> may be classified as "interventional cardiology" procedures.

<FIG> shows the apparatus <NUM> configured for percutaneous endoscopic gastrostomy (PEG), a procedure in which a flexible feeding tube is placed through the abdominal wall and into the stomach. PEG allows nutrition, fluids and/or medications to be put directly into the stomach, bypassing the mouth and esophagus. <FIG> shows the apparatus <NUM> configured for a central venous line (CVL) insertion. The configurations of the apparatus <NUM> shown in <FIG> may be classified as "interventional radiology" procedures.

Claim 1:
An apparatus (<NUM>) for shielding radiation emitted during a medical procedure, the apparatus (<NUM>) comprising:
a board (<NUM>) positionable on top of a procedure table, the board (<NUM>) extending laterally between a first board edge (<NUM>) and a second board edge (<NUM>), and longitudinally between a third board edge (<NUM>) and a fourth board edge (<NUM>), the board (<NUM>) comprising a plurality of apertures (<NUM>) distributed along at least one of the board edges (<NUM>, <NUM>, <NUM>, <NUM>); and
at least one radiation shield (<NUM>, <NUM>, <NUM>, <NUM>) removably mountable to the board (<NUM>), the at least one radiation shield (<NUM>, <NUM>, <NUM>, <NUM>) comprising at least one peg (<NUM>, <NUM>, <NUM>, <NUM>) engageable with any one of the apertures (<NUM>) in the board (<NUM>),
characterized by
each of the plurality of apertures (<NUM>) in the board (<NUM>) comprise an opposed pair of retention regions (<NUM>) extending away from an insertion region (<NUM>), and the at least one peg (<NUM>, <NUM>, <NUM>, <NUM>) of the at least one radiation shield (<NUM>, <NUM>, <NUM>, <NUM>) is configured to be received in the insertion region (<NUM>) of any one of the apertures (<NUM>) and slidably engaged with one of the retention regions (<NUM>) of that aperture (<NUM>), and preferably each of the retention regions (<NUM>) extends longitudinally from the insertion region (<NUM>), and
the at least one radiation shield (<NUM>, <NUM>, <NUM>, <NUM>) comprises a first radiation shield and a second radiation shield, and while the at least one peg of the first radiation shield is engaged with one of the retention regions (<NUM>) of any one of the apertures (<NUM>) in the board (<NUM>), the at least one peg of the second radiation shield is engageable with the other of the retention regions (<NUM>) of that aperture (<NUM>).