Abstract:
A patient-support sling is at least partially disposable in a recessed area of the mattress, the sling being tiltably supported by a frame and carrying a waste receptacle. The sling has an aperture and at least one opening, the opening being larger in area than a bedsore. The sling is configured to enable selective relocation of the opening, thereby enabling an accommodation of bed sores for reducing incidence and severity thereof. The receptacle is removably attachable to the pelvic support member and disposable in part below the aperture for receiving eliminated waste of the user.

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
       [0001]    This application is a continuation in part of application Ser. No. 14/330,006 filed Jul. 14, 2014. 
     
    
     BACKGROUND OF THE INVENTION 
       [0002]    The present invention relates in part to a sling device for supporting a portion of a person. The sling may be used over a bed and is structured to reduce the incidence and severity of bedsores. The present invention is also directed to a mattress system incorporating the sling. 
         [0003]    Currently, there are rotating mattresses on the market for approximately $4,000 to $30,000, but they do not provide for elimination of wastes. Medicaid currently requires nurses&#39; aides in nursing homes to attend to 10 patients per shift. However, an incontinent patient with a severe waste problem may require 2 aides to rotate and clean them, using 2-5 towels, in addition to 1-4 sheets, and can take up to ½ hour. If all 10 patients require such attention, this would fill 5 hours of an aide&#39;s 8 hour shift. As a result, due to the physical effort of lifting heavy patients and the time involved, aides are not able to fully address the problem and many patients in nursing homes sit in their waste for up to 3-4 hours. Ultimately, the waste permeates and infects, or further exacerbates bedsores located near patients&#39; lower spines. This common occurrence does not allow patients&#39; bedsores to heal and is extremely inhumane. 
         [0004]    Therefore, there is a need for a cost-effective mattress medical device that allows for ease of rotating a bedridden patient and effectuating the disposal of the patient&#39;s waste, to prevent and treat bedsores. 
       OBJECTS OF THE INVENTION 
       [0005]    It is an object of the present invention to provide an improved patient support device that facilitates the reduction in incidence and amelioration of bedsores. 
         [0006]    It is a further object of the present invention to provide such a patient support device that allows for waste disposal of bedridden patients. 
         [0007]    Another object of the invention is to provide for a more cost effective, economically feasible rotation and waste disposal mattress system for bedridden patients for low-income nursing homes and in-home caretakers. 
       DEFINITIONS 
       [0008]    The word “sling” is used herein to denote a flexible support device for supporting any portion of a patient&#39;s body. Typically, as described herein a sling is used as a pelvic support in conjunction with a bed or mattress. A pelvic sling preferably includes an aperture for placement of a patient waste receptacle such as a bag. The sling of the present invention could be used, however, as a shoulder support, to alleviate and reduce or eliminate bed sores at the upper back of the patient or user. In addition, the sling may be used not in conjunction with a bed or mattress but as a chair-type support and a sling for an appendage such as a leg that has injuries or surgical sites that heal more quickly if not subjected to pressure. A sling as specifically disclosed herein comprises a rectangular grid or matrix of tensile elements arranged to form rectangular openings in a rectangular array, whose size may be varied by shifting the elongate tensile elements orthogonally to their elongate dimensions. The sling of the present invention is thus customizable to accommodate the particular patient. 
         [0009]    The word “platform” is used herein to denote a rigid support device for supporting any portion of a patient&#39;s body. 
         [0010]    The terms “pelvic support member” and “personal support member” are generically used herein to cover both sling (flexible) and platform (rigid). 
         [0011]    A “tilting mechanism” as that term is used herein denotes any kind of mechanical device that may be used to elevate one end or side of a sling or personal support member relative to another end or side. A tilting mechanism can be manual or automatic and can take any form suitable for the task, including electric linear servos, electric linear actuators, electric motors with rack-and-pinion or gear-and-pulley transmission trains, hydraulic or pneumatic lifts, etc. The tilting mechanism could be manually powered, for instance, with a crank and ratchet. 
         [0012]    A “receptacle” is used herein to denote a container for human waste. The container typically takes the form of a bag but could be a rigid item such as a pot or bowl. A waste receptacle in accordance with the invention is typically attached to a pelvic support member an alignment with an aperture therein. Alternatively, particularly where a mattress is provided with a recess or cavity, the receptacle may be placed on the floor of the recess or cavity, but in vertical alignment with an aperture in a pelvic support member. 
       SUMMARY OF THE INVENTION 
       [0013]    A flexible sling for partially supporting a person exemplarily over a mattress comprises a flexible frame including flexible two longitudinal edge elements extending parallel to a long axis of the sling and defining long edges of the sling. The flexible frame further includes two flexible transverse edge elements extending transversely to the long axis of the sling and defining short edges of the sling, each of the longitudinal edge elements being connected to each of the transverse edge elements. Plural flexible longitudinal inside elements are provided, each slidably connected at opposite ends to the transverse edge elements. Multiple flexible transverse inside elements are additionally included each slidably connected at opposite ends to the longitudinal edge elements. The longitudinal inside elements are spaced at variable distances from each other. Likewise, the transverse inside elements are spaced at variable distances from each other. 
         [0014]    Where the transverse inside elements are primary transverse inside elements all having a first common length, the sling further comprises a plurality of secondary transverse inside elements having a second common length shorter than the first common length. Each of the secondary transverse inside elements is connected at one end to one of the longitudinal edge elements and at an opposite end to one of the longitudinal inside elements, thereby providing an aperture in the sling member. 
         [0015]    Optionally, the longitudinal inside elements are primary longitudinal inside elements all having a third common length, while the sling further comprises a plurality of secondary longitudinal inside elements having a fourth common length shorter than the third common length. Each of the secondary longitudinal inside elements is connected at one end to one of the transverse edge elements and at an opposite end to one of the transverse inside elements at the aperture in the sling member. Preferably, however, the secondary longitudinal inside elements are omitted to enable a sideways adjustment in the location of the waste-elimination aperture. 
         [0016]    The sling may further comprise a receptacle removably attachable to the sling and disposable in part below the aperture for receiving eliminated waste of the user. 
         [0017]    A related user rotation and waste elimination system is utilizable with a mattress having a recessed area located at a user&#39;s pelvic region. The user rotation and waste elimination system is at least partially disposable in the recessed area of the mattress and comprises two posts (as a frame or in substitution for the frame), a tilting mechanism, a pelvic support member, and a receptacle. The two posts are positioned on the floor on each long side of the mattress near the recessed portion of the mattress. The pelvic support member is suspended between the two posts so as to be aligned with the mattress for support of the user&#39;s pelvic region. The pelvic support member has an aperture and at least one opening, the opening being larger in area than a bedsore. The pelvic support member is configured to enable selective relocation and size of the aperture and the opening, thereby enabling an accommodation of bed sores for reducing incidence and severity thereof. The posts incorporate a tilting mechanism which is operatively connected to the pelvic support member and configured to shift the pelvic support member so as to rotate or tilt the user&#39;s pelvic region. Additionally, the top portion of each post is slightly larger than its base to allow it to slide down over the base for transporting a patient off the bed. The receptacle is removably attachable to the pelvic support member and disposable in part below the aperture for receiving eliminated waste of the user. 
         [0018]    Pursuant to further features of the present invention, the pelvic support member has a woven structure with weft elements and warp elements, at least some of the weft elements and warp elements being shiftable relative to others of the weft elements and warp elements to enable adjustment in location and size of at least one opening. 
         [0019]    Optionally at least some of the weft elements and warp elements are shiftable relative to others of the weft elements and warp elements to enable adjustment in location and size of the aperture. 
         [0020]    The tilting mechanism preferably includes a plurality of posts connected to the pelvic support member, at least one of the posts being movable alternately upwardly and downwardly so as to tilt the pelvic support member alternately to opposite sides of the system. The posts are preferably disposed on opposite long sides of the mattress, the pelvic support member being suspended over or in the recessed area of the mattress. 
         [0021]    The tilting mechanism may be operatively connected to the pelvic support member so as to selectively tilt the pelvic support member and accordingly the user&#39;s pelvic region from side to side, about an axis parallel to a longitudinal axis of the mattress. 
         [0022]    The receptacle may carry a plurality of fasteners for removably attaching the receptacle to the pelvic support member. These first fasteners may be supplemented by additional second fasteners, also located on the receptacle. The fasteners may consist of hook and Loop fasteners (VELCRO). The receptacle typically takes the form of a bag. 
         [0023]    A method for managing human waste collection and disposal for a bed-ridden user comprises, in accordance with the present invention, providing a pelvic support member suspended at least in part over a mattress at a pelvic region of the user, the pelvic support member having an aperture, the pelvic support member having at least one additional opening, providing a bag dimensioned to fit the aperture, removably attaching the bag to the pelvic support member so that a pocket or receptacle portion of the bag is disposed below the aperture, and adjusting the pelvic support member to change a geometric parameter of the aperture and/or at least one opening, the geometric parameter being taken from the group consisting of (a) size of the aperture and at least one opening and (b) location thereof relative to edges of the pelvic support member. 
         [0024]    Where the pelvic support member includes longitudinally extending flexible elongate elements each slidably attached to transverse edge elements of the pelvic support member and further includes transversely extending flexible elongate elements each slidably attached to longitudinal edge elements of the pelvic support member, the adjusting of the pelvic support member including sliding at least one of the flexible elongate elements along respective ones of the transverse edge elements and the longitudinal edge elements. Naturally the adjusting of the pelvic support member may include sliding a plurality of the flexible elongate elements along respective ones of the transverse edge elements and the longitudinal edge elements. 
         [0025]    The attaching of the bag to the pelvic support member includes folding flanges or flaps of the bag over and around a portion of the pelvic support member so that terminal portions of the flanges or flaps are located below the pelvic support member, the attaching of the bag to the pelvic support member further including coupling first fasteners to second fasteners, both of which are located on the bag. The bag is removed from the pelvic support member upon a deposition of human waste into the receptacle portion of the bag, the removing of the bag including uncoupling the first fasteners from the second fasteners and unfolding the flanges or flaps from the portion of the pelvic support member. 
         [0026]    A user support system comprises, in accordance with the present invention, two posts, a pelvic support member, and a tilting mechanism. The two posts are positioned on the floor on each long side of the mattress near the recessed portion of the mattress. The pelvic support member has an aperture and at least one opening and is suspended between the two posts so as to be aligned with the mattress for support of the user&#39;s pelvic region. The posts incorporate a tilting mechanism which is operatively connected to the pelvic support member and configured to rotate or tilt the user&#39;s pelvic region. Additionally, the top portion of each post is slightly larger than its base to allow it to slide down over the base for transporting a patient off the bed. The system may further comprise a receptacle removably attachable to the pelvic support member and disposable in part below the aperture for receiving eliminated waste of the user. The pelvic support member is configured for enabling a user to change a geometric parameter of the aperture and at least one opening taken from the group consisting of size of the aperture and opening and the location thereof relative to edges of the pelvic support member. The pelvic support member preferably includes longitudinally extending flexible elongate elements each slidably attached to transverse edge elements of the pelvic support member and further includes transversely extending flexible elongate elements each slidably attached to longitudinal edge elements of the pelvic support member. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0027]    Other aspects, features, and advantages of the present invention will become more fully apparent from the following detailed description, the appended claims, and the accompanying drawings in which similar elements are given similar reference numerals. 
           [0028]      FIG. 1A  is a perspective top view of the medical device showing the electronic lift system placed into the recess of the mattress. 
           [0029]      FIG. 1B  and  FIG. 1C  are side views of the medical device showing the electronic lift system. 
           [0030]      FIG. 2  is a perspective view of the medical device showing the two pulley systems. 
           [0031]      FIG. 3  is a top view of the mattress. 
           [0032]      FIG. 4  is a side view of the mattress. 
           [0033]      FIG. 5  is a side view of the frame and platform with plastic bag inserted for waste elimination, placed in the mattress&#39;s recess. 
           [0034]      FIG. 6  is a top view of the medical device with the two pulley systems placed into the recess of the mattress. 
           [0035]      FIG. 7  is a bottom view of the platform showing fabric loops attached to each of the 4 sides and the cut-out portion of the platform, in which the waste collecting plastic bag will be placed. 
           [0036]      FIG. 8  is a perspective of the one-time use waste collecting plastic bag. 
           [0037]      FIG. 9  is a perspective view showing the platform and electronic lift system with the patient tilted between 30 degrees to 40 degrees. 
           [0038]      FIG. 10  is a perspective view showing the platform and two pulley systems with the patient tilted between 30 degrees to 40 degrees. 
           [0039]      FIG. 11  is a top plan view of a sling utilizable as a patient or pelvic support member in the personal medical support system of device of  FIGS. 1A-1C, 2, 9, and 10 . 
           [0040]      FIG. 12  is a schematic perspective view of a personal support system for a bed-confined person pursuant to the present invention. 
       
    
    
     DETAILED DESCRIPTION 
       [0041]    As depicted in  FIG. 1A , the rotating and waste elimination system  100  which is to be placed into a mattress  1  with a recessed area  2  comprises three parts: 1) a frame  50 , 2) a user support member or platform  25  and 3) an electronic lift system  200 . 
         [0042]    The frame  50  has a rectangular base  51  that has four sides with the dimensions being approximately 36″ long edges, 12″ short edges, and has a central rectangular shaped cut out having two long edges of approximately 32 inches and two short edges of approximately 8 inches. Additionally, the frame  50  has two side walls  52  of approximately 24 inches height having an interior side, an exterior side, a top side, a bottom side, two lateral sides with the bottom side perpendicularly attached to the 12″ shorter edges of the rectangular base  51 . 
         [0043]    The platform  25  has a top side, a bottom side forming a four-sided rectangular shape therein with a dimension that has approximately 36″ longer sides, 12″ shorter sides, and a central cut out  34  having two long sides of approximately 32 inches and two short sides of approximately 8 inches. The platform  25  is supported by two pairs of sliding posts  202  and is positioned parallel above the base  51  and between the two 24″ side walls  52 , having one end of optional two chains  26  attached to each of the 12″ shorter sides through a chain hook and loop  30  on the corners and the other end of the optional two chains  26  attached to each interior sides of the walls  52  near the top side through another set of chain hook and loops  30 . The platform  25  is lined with additional mini-alternating air mattresses  27  all connected to the main alternating air mattress  1 . Additionally, the platform  25  has a plurality of fabric loops such as Velcro™ or similar styled material loops located on the bottom side. 
         [0044]      FIG. 1B  and  FIG. 1C  show a side view of the rotating and waste elimination system  100 . 
         [0045]    An electronic lift system  200  seen in  FIG. 1B  and  FIG. 1C  supporting movement of the platform, comprising two pairs of posts  202 , the top part of each individual post  202  is connected to the bottom of the platform and the bottom part of each post is connected to the top sides  204  of the rectangular base at approximately 10″ distance from each of the short edges of the rectangular base  51  and platform  25 , respectively; the lift system  200  has an programmable electronically-controlled gear  203  that operates the posts to cause one pair of posts to raise one end and simultaneously causes the second pair of posts to lower the opposite end of the platform to gently turn the patient. The electronic lift system  200  having programmed circuitry to determine how much force to apply and can be programmed as to how often to turn the patient. Chains are an optional security measure on the electronic lift system and may be placed on both sides of the platform and repositioned manually by chain hook and loops. However, they should not be taut to allow for automatic programmed turning. 
         [0046]    The lift system  200  can also be a non-electronic lift system that is moved by a crankshaft known in the arts. 
         [0047]      FIG. 2  illustrates a perspective view of the rotating and waste elimination system  100 . The rotating and waste elimination system  100  comprises three parts: 1) a frame  50 , 2) a platform  25  and 3) two pulley systems. 
         [0048]    The frame  50  has a rectangular base  51  that has four sides with the dimensions being approximately 36″ long edges, 12″ short edges, and has a central rectangular shaped cut out that has two long edges of approximately 32 inches and two short edges of approximately 8 inches. Additionally, the frame  50  has two side walls  52  of approximately 24 inches in height having an interior side, an exterior side, a top side, a bottom side, and two lateral sides with the bottom side perpendicularly attached to the 12″ shorter edges of the rectangular base  51 . 
         [0049]    The platform  25  has a top side, a bottom side forming a four-sided rectangular shape with a dimension that has approximately 36″ longer sides, 12″ shorter sides, and a central cut out  34  having two long sides of approximately 32 inches and two short sides of approximately 8 inches. The platform  25  is positioned parallel above the base  51  and between the two 24″ side walls  52 , having one end of two chains  26  attached to each of the 12″ shorter sides through a chain hook and loop  30  on the corners and the other end of the two chains  26  attached to each interior sides of the walls  52  near the top side through another set of chain hook and loops  30 . The platform  25  is lined with additional mini-alternating air mattresses  27  all connected to the main alternating air mattress  1 , the platform  25  having a plurality of fabric loops such as Velcro™ loops located on the bottom side. 
         [0050]    An electronic pulley system  29  comprises a wheel on an axle that supports movement of a cable or belt  28  along its circumference. First end of the cable  28  is attached to the midpoint of each 12″ shorter side of the platform  25  the second end of the cable  28  is attached to electronically controlled gears that rotate and counter-rotate to pull or release the cable  28  and in turn pull on or release the platform  25 , the electronic pulley system  29  having programmed circuitry to determine how much force to apply and can be programmed as to how often to turn the patient. Said chains on both sides of the platform may be repositioned manually by chain hook and loops after the patient has been rotated to a new position to secure the patient. The chains are a security measure to prevent accidental falls and are not to be taut, so as to allow for automatic/programmed turning. 
         [0051]    The pulley system can also be a non-electronic pulley system that is moved by a crankshaft known in the arts. 
         [0052]      FIGS. 3 and 4  are a top view and a side view of the mattress  1  with a recessed area  2  for receiving the frame  50  and the platform  25 .  FIG. 5  is a side view of the platform  25 , frame  50  and plastic bag  31  for waste elimination placed in the mattress&#39;s recess  2 . 
         [0053]      FIG. 6  discloses a top view of the mattress with a Rotation/Waste Elimination System  100  with the frame  50  and the platform  25  placed into the recess  2  of the mattress  1 . When the frame  50  and platform  25  are placed within the recessed area  2 , there is a continuous surface from the mattress  1  to the mini mattresses  27  on the platform. 
         [0054]    In one embodiment, the mattress  1  is an alternating pressure mattress known in the art. An alternating pressure mattress comprising a plurality of inflatable side formations, located on both sides of the mattress, which can be inflated and deflated cyclically in a predetermined sequence. In a second embodiment, the mattress is a regular mattress with a recess area with the mini-mattresses made of similar material or foam. 
         [0055]    In the first and second embodiment, the electronic lift system or electronic pulley system rotates the lower half of the patient; the upper body may or may not have to be moved manually as determined by the degree of rotation. This allows for a more cost effective/economically feasible rotation/waste disposal system for lower-income nursing homes and caretakers in-home. 
         [0056]    In a third embodiment the mattress is a lateral rotation therapy mattress with a hole around the patient&#39;s pelvic area for waste disposal. The lateral rotation therapy mattress is known in the art. (See U.S. Pat. No. 5,375,273, “Lateral rotation therapy mattress system and method”, publication date Dec. 27, 1994, the disclosure of which is incorporated herein by reference). The lateral rotation therapy mattress includes: a plurality of side-by-side longitudinal air cells; and apparatus to supply pressurized air to the air cells to control the levels of pressure in individual ones of and/or groups of the air cells. The lateral rotation therapy mattress may have air cells divided into four groups: 1) left outer, 2) left inner, 3) right inner, and 4) right outer. Each air cell may be constructed of any suitable material such as compliant vinyl or urethane infused Nylon material. As an example, a patient may be laterally rotated about 30-45 degrees to the right by reducing the pressure in the right inner cells and increasing the pressure in the left inner cells. When it is desired to rotate the patient back to a supine position, the pressure in the right inner air cells are increased while the pressure in the left inner air cells are decreased until the pressure of both the right inner air cells and the left inner air cells are the same. When it is desired to rotate the patient to the left, the pressure in the right inner air cells are increased while the pressure in the left inner air cells are decreased. The rate of rotation is very slow and gentle so as not to wake the patient. The pressure control system for air support structure includes an air blower which supplies pressurized air to a main manifold which, in turn, provides air to air cells through a pressure regulator. 
         [0057]    With reference to  FIG. 7 , there is shown the bottom view of the platform  25  showing fabric loops  33  attached to each of the bottom 4 sides and the cut-out portion of the platform  34 , in which the waste collecting plastic bag  31  will be placed. 
         [0058]      FIG. 8  shows the one-time use waste collecting plastic bag having dimensions which should be an exact fit to the interior cut out  34  portion of the platform  25 , with each corner cut down approximately 4″ (or more) at the crease to separate the sides, fabric hooks  32  are located on the top 2″ of the outside of each side of the plastic bag  31 , the plastic bag  31  is inserted into the interior cut out  34  portion of the platform  25  with the plastic bag  31  sides folded over the mini air mattresses  27  and then having the top 2″ of the outside of each side of the plastic bag  31  folded underneath so the fabric hooks  32  on the plastic bag  31  can engage with the fabric loops  33  located on the bottom of the platform  25 . The one-time use waste collecting plastic bag  31  is inexpensive to manufacture and cost effective. The waste collecting plastic bag  31  can be easily removed and disposed by detaching its fabric hook from the fabric loop located on the bottom of the platform. In an alternative design, the bag  31  may be provided with both fabric hooks  32  and fabric loop elements  32 ′. Fabric hook elements  32  are positioned along the end of flaps or flanges  36 , while fabric loop elements  32 ′ are positioned at spaced locations on the outside center of the bag  31 . 
         [0059]    The attaching of the bag  31  to a pelvic support member includes folding flanges or flaps  36  over and around a portion of the pelvic support member so that terminal portions of the flanges or flaps are located below the pelvic support member and so that the fabric hook elements  32  are aligned with and overlap the fabric loop elements  32 ′. The attaching of the bag  31  to the pelvic support member further includes coupling hook and loop fasteners  32  and  32 ′ to one another. Bag  31  is removed from the pelvic support member upon a deposition of human waste into the receptacle portion of the bag, the removing of the bag including uncoupling hook and loop fasteners  32  and  32 ′ from one another and unfolding the flanges or flaps  36  from the portion of the pelvic support member. 
         [0060]      FIG. 9  shows the platform and patient tilted between 30 degrees to 40 degrees. A method for ease of rotation and waste disposal for bedridden patients to prevent and treat bedsores comprises steps of: (a) providing a mattress with a rotation/waste elimination system around the pelvic area of a patient. The mattress mentioned here is the mattress described earlier; (b) an electronic lift system supported by two pairs of sliding posts which raise one end and simultaneously lowers the opposite end of the platform to the right (or left) and turns the patient&#39;s body towards the left (or right); (c) if chains are used, manually repositioning the chain hook and loop to ensure the patient is secure, but confirming they are not taut to allow for automatic programmed turning; and (d) if necessary, manually turning the patient&#39;s upper body towards the left (or right). 
         [0061]      FIG. 10  shows the platform and patient tilted between 30 degrees to 40 degrees. A method for ease of rotation and waste disposal for bedridden patients to prevent and treat bedsores comprises steps of: (a) providing a mattress with a rotation/waste elimination system around the pelvic area of a patient. 
         [0062]    The mattress mentioned here is the mattress described earlier; (b) an electronic pulley system to pull the right cable (or left cable), in turn pulling the right (or left) side of the platform up to the right (or left) and turning the patient&#39;s body towards the left (or right); (c) manually repositioning the chains&#39; hooks and loops to ensure the patient is secure, but confirming the chains are not taut to allow for automatic programmed turning; and (d) if necessary, manually turning the patient&#39;s upper body towards the left (or right). 
         [0063]    As depicted in  FIG. 11 , a personal support member or specifically a pelvic support member  102  in the form of a flexible sling utilizable in substitution for platform  25  described above comprises a flexible frame  104  including flexible two longitudinal edge elements  106   a  and  106   b  extending parallel to a long axis  108  of the sling and defining long edges thereof. Frame  104  further includes two flexible transverse edge elements  110   a  and  110   b  extending transversely to the long axis  108  of the sling and defining short edges thereof, each of the longitudinal edge elements  106   a  and  106   b  being connected to each of the transverse edge elements  110   a  and  110   b.  Plural flexible longitudinal inside elements  112  are provided each slidably connected at opposite ends to the transverse edge elements  110   a  and  100   b,  while multiple flexible transverse inside elements  114  are additionally included each slidably connected at opposite ends to the longitudinal edge elements  106   a  and  106   b.  More particularly, longitudinal inside elements  112  are provided with terminal loops  116  and  118  that extend around transverse edge elements  110   a  and  110   b.  Transverse inside elements  114  are similarly formed with terminal loops  120  and  122  that extend around longitudinal edge elements  106   a  and  106   b.  Transverse edge elements  110   a  and  110   b  traverse loops  116  and  118 , while longitudinal edge elements  106   a  and  106   b  traverse loops  120  and  122 . Owing to the slidable fastening of longitudinal inside elements  112  to transverse edge elements  110   a  and  110   b,  indicated by double-headed arrows  150 , the longitudinal inside elements are spaced at variable distances from each other. Likewise, owing to the slidable fastening of transverse inside elements  114  to longitudinal edge elements  106   a  and  106   b,  indicated by double-headed arrows  152 , the transverse inside elements are spaced at variable distances from each other. 
         [0064]    Longitudinal edge elements  106   a  and  106   b,  transverse edge elements  110   a  and  110   b,  as well as longitudinal inside elements  112  and transverse inside elements  114 , are all preferably made of a fabric material. Terminal loops  116 ,  118 ,  120 ,  122  are formed by folding back end portions of longitudinal inside elements  112  and transverse inside elements  114  and stitching the folded-over ends to the respective inside elements. 
         [0065]    Longitudinal inside elements  112  and transverse inside elements  114  collectively define a typically irregular rectangular array of rectangular openings  124  that may be individually enlarged, by the sliding of transverse inside elements  114  along longitudinal edge elements  106   a  and  106   b  and by the sliding of longitudinal inside elements  112  along transverse edge elements  110   a  and  110   b,  to generate openings at selected locations of sufficient size to accommodate bedsores of a bedridden person, so that the bedsores are free of engagement with the supporting elements  112  and  114  and thereby are free of compressive pressure, thereby allowing adequate blood circulation and air contact for drying and healing. 
         [0066]    Where transverse inside elements  114  are primary transverse inside elements all having a first common length L 1 , the sling  102  may further comprise a plurality of secondary transverse inside elements  126  and  128  having a second common length L 2  shorter than the length L 1  of the primary transverse elements  114 . Each of the secondary transverse inside elements  126 ,  128  is connected at one end to one of the longitudinal edge elements  106   a  or  106   b  and at an opposite end to one of the longitudinal inside elements  112 , thereby providing an aperture  130  in the sling member. 
         [0067]    Optionally, longitudinal inside elements  112  are primary longitudinal inside elements all having a third common length L 3 , while the sling further comprises a plurality of secondary longitudinal inside elements  132  and  134  having a fourth common length L 4  shorter than length L 3 . Each secondary longitudinal inside element  132  and  134  is connected at one end to one of the transverse edge elements  110   a  or  110   b  and at an opposite end to one of the transverse inside elements  114  at the aperture  130  in the sling member. Preferably, however, the secondary longitudinal inside elements are omitted to enable a sideways adjustment in the location of the waste-elimination aperture. 
         [0068]    Sling  102  may further comprise a receptacle  136 , e.g., plastic bag, removably attachable to the sling and disposable in part below the aperture for receiving eliminated waste of the user. The removal attachment of receptacle  136  to sling  102  at aperture  130  may be implemented as discussed hereinabove with reference to bag  31  and hook and loop fasteners  32 . The receptacle or bag  136  may include a plurality of tongues or flaps  137  provided with hook and loop fasteners (not shown) for removably attaching the bag to inside elements  112  and  114  defining aperture  130 , as depicted in  FIG. 11 . 
         [0069]    Sling  102  further comprises a pair of end bars or rods or PVC pipe sections  138  and  140  made of rigid material such as metal or hard polymer. Bars or rods  138  and  140  are connected to transverse edge elements  110   a  and  110   b  via straps, loops, hooks, rivets, or other fasteners  142 ,  144 . Each bar or rod  138  and  140  is provided with coupling members  146  such as hooks, ties, chains, cables, etc., for suspending the sling  102  from frame  50  or other uprights or posts placed alongside a bed. Bars or rods  140  serve in part to maintain the extension or spread of sling  102 , preventing collapse or bunching thereof. 
         [0070]    In another embodiment, the transverse edge elements are extended by casings made of fabric and connected to transverse edge elements  110   a  and  110   b  via straps, loops, hooks, rivets, or other fasteners. The casings provide sleeves for placement of hollow plastic PVC pipes which are removable when washing the net. The PVC pipes keep the net flat and provide openings for a hammock strap to be inserted on each side to connect the sling to the tilting mechanism. 
         [0071]    It is contemplated that the tilting is effectuated periodically. The user may be tilted to one side for a fixed period of time, say, fifteen minutes, and then the tilting mechanism elevates a low side and lowers a high side of the pelvic support to tilt the user in the opposite direction. The tilting mechanism can take any form suitable for the task, including electric linear servos, electric linear actuators, electric motors with rack-and-pinion or gear-and-pulley transmission trains, hydraulic or pneumatic lifts, etc. A controller (not shown) includes an automatic timer which is possibly programmable to enable the institution of multiple tilt angles for respective time periods. In addition, the program may allow for a periodic rocking from side to side. 
         [0072]    It is to be noted that sling  102  may be used to support other parts of a user&#39;s body, for instance, the shoulder region, where bedsores are apt to arise. The main use, however, is in the pelvic region. 
         [0073]      FIG. 12  shows a patient support system including personal support member or sling  102 . Support of sling  102  is suspended at opposite ends from two posts  154  and  156  which incorporate a tilting mechanism (such as electric linear servos or electric linear actuators) which is operatively connected to the sling and configured to shift the sling so as to rotate or tilt the pelvic region of a user USR. The two posts  154  and  156  are positioned on the floor on each long side of a mattress or bed  164  near a recessed portion (not shown) of the mattress. The pelvic support member or sling  102  is suspended between the two posts  154  and  156  so as to be aligned with the mattress and the user USR for support of the user&#39;s pelvic region. Each post includes a lower portion or base  158  and a top portion  160 , where the top portion is slightly larger than lower portion  158  to allow the top portion to slide down over the base (as indicated by dual-headed arrow  162 ) for transporting a patient off bed or mattress  164 . As discussed above, receptacle  136  ( FIG. 11 ) is removably attachable to the sling  102  and disposable in part below aperture  130  ( FIG. 11 ) for receiving eliminated waste of the user USR. 
         [0074]    Set forth below is a table that shows a feature name or descriptive label and a related reference designation or number and indicates within which figures the feature appears.  FIGS. 11 and 12  and their related reference numerals are omitted from the table. 
         [0000]    
       
         
               
               
               
             
           
               
                   
               
               
                 DESCRIPTION 
                 NO. 
                 FIGURE NOS. 
               
               
                   
               
             
             
               
                 Mattress 
                  1 
                 1A, 2, 3, 6, 9, 10 
               
               
                 Recessed portion of Mattress 
                  2 
                 1A, 2, 3, 4, 5, 6, 9, 10 
               
               
                 Platform 
                  25 
                 1A, 2, 5, 6, 7, 9, 10 
               
               
                 Chains 
                  26 
                 1A, 2, 6, 7, 10 
               
               
                 Mini-alternating air mattresses 
                  27 
                 1A, 2, 6 
               
               
                 Cable or Belt for pulley system 
                  28 
                 2, 6, 10 
               
               
                 Electronic pulley system 
                  29 
                 2, 6, 10 
               
               
                 Chain hook and loop 
                  30 
                 1A, 2, 6, 10 
               
               
                 Plastic bag for waste elimination 
                  31 
                 5, 8 
               
               
                 Fabric hooks (32) along ends of flaps or 
                  32 &amp; 
                 8 
               
               
                 flanges (36) and at spaced locations on 
                  36 
                   
               
               
                 outside center of waste collection bag 
                   
                   
               
               
                 Fabric hooks located on bottom of  
                  33 
                 7 
               
               
                 platform 
                   
                   
               
               
                 Cut-out portion of platform 
                  34 
                 1A, 2, 6, 7, 9, 10 
               
               
                 Frame 
                  50 
                 1A, 2, 5 
               
               
                 Rectangular Base 
                  51 
                 1A, 2, 5, 9, 10 
               
               
                 Two Side Walls 
                  52 
                 1A, 2, 5, 6 
               
               
                 Rotating and waste elimination system 
                 100 
                 1A, 1B, 1C, 2, 6 
               
               
                 Electronic Lift System 
                 200 
                 1A, 1B, 1C 
               
               
                 Two pairs of posts 
                 202 
                 1A, 1B, 9 
               
               
                 Programmable electronically-controlled  
                 203 
                 1A, 1B, 1C, 9 
               
               
                 gear 
                   
                   
               
               
                 Top of Rectangular Base 
                 204 
                 1B, 1C