Patent Publication Number: US-2022218112-A1

Title: Ergonomic pelvic support platform

Description:
BACKGROUND 
     1. Technical Field 
     The present invention relates to a device for ergonomic support. 
     2. Description of Related Art 
     Certain professions require prolonged standing in a relatively constant position, while manipulating tools of the profession. Prolonged standing may lead to musculoskeletal strain and neurological damage, typically of the neck, shoulder, arm, hand, lower back, pelvis, and foot. The field of ergonomics aims to minimize such damage, by providing optimal support of the human body in a given position, and by improving the grasped areas of tools, to best suit human anatomy. Surgery is an example of one profession which requires prolonged standing, either bent over an operating table (during open surgery), or with arms extended (during laparoscopic surgery). A surgeon may be highly limited in the movements she may make during hours-long surgery. Both the operating table, height and location of viewing monitors, are not as adjustable as ideal, so as to ease or prevent a surgeon&#39;s pain during the course of prolonged surgery. 
     BRIEF SUMMARY 
     Various ergonomic devices and methods are disclosed herein for an ergonomic device including: a main support, a base attachable to a distal point of the main support, a pelvic support attachable to the main support at a proximal point, a secondary support attachable between an intermedial point of the main support and the base. The user may be supported from the front by the pelvic support while standing on the base. The main support may include overlapping elements and configured for adjustment of distance between the proximal point and the distal point or height of the pelvic support. The main support may include a linear actuator attached to a slidable element configured to adjust position (height) of the pelvic support. A foot pedal or hand switch when pressed is configured to actuate the linear actuator and adjust the position of the pelvic support. The secondary support may include a linear actuator configured for adjustment of an elevational angle of the main support. A foot pedal or hand switch when pressed may actuate the linear actuator and adjust the elevational angle of the main support. The pelvic support may support pelvis of a user from the front during prolonged standing with feet on the base. The pelvic support may include a cushion including memory foam. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The invention is herein described, by way of example only, with reference to the accompanying drawings, wherein: 
         FIG. 1  illustrates an isometric side view of an ergonomic device while in use, according to features of the present invention; 
         FIG. 2  illustrates an exploded view showing structural features and assembly of an ergonomic device according to features of the present invention; and 
         FIG. 3  shows a flowchart of a method, according to features of the present invention. 
     
    
    
     The foregoing and/or other aspects will become apparent from the following detailed description when considered in conjunction with the accompanying drawing figures. 
     DETAILED DESCRIPTION 
     Reference will now be made in detail to features of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout. The features are described below to explain the present invention by referring to the figures. 
     By way of introduction, aspects of the present invention are directed to provide dynamic and adjustable ergonomic pelvic support, to support a surgeon or other professional during prolonged standing. Embodiments of the present invention are directed to prevent discomfort to a user while she stands in a fixed position during long periods of time, e.g. a lengthy surgical procedure. Moreover, use of embodiments of the present invention provides support in a central portion of the body which assists the user by reducing load and allows for greater ease and precision of manual manipulations. Referring now to the drawings, reference is now made to  FIG. 1  which illustrates an isometric side view of ergonomic device  100 , according to features of the present invention. Reference is also made to  FIG. 3  which is a flow diagram of a method according to features of the present invention. Ergonomic device  100  includes a base  1  upon which a user  12 , e.g. surgeon or other professional may stand. Base  1  may be covered with an anti-fatigue mat which tends to absorb shock. A main support bar  4  is attached (step  31 ) at a distal end to base  1  with a rotatable coupling  5  (not shown) hidden under the mat covering base  1 . 
     A pelvic support with pad  3  attaches (step  33 ) to a rod  8  which may be slidably attached to support bar  4 . In use, pelvic support  3  may be designed to contact and support (step  39 ) from the front anterior pelvis and/or hip of user  12  as shown. pelvic support  3  may be upholstered for comfort and include springs and/or elastic material to provide shock absorption. A coupling  9  between pelvic support  3  and rod  8  may be rotatable, e.g. ball joint allowing some freedom of orientation along elevation angle E, azimuthal angle A and tilt angle T while user may lean and apply body weight pressure in different directions. Coupling  9  allows pelvic support with pad  3 , e.g. rectangular shaped as shown to be oriented horizontally or vertically. A secondary support  24  may attach (step  35 ) at a distal end to base  1  and at a proximal end to a coupling  25  intermedial on main support bar  4 . Secondary support  24  may include a linear actuator  26 , e.g. an electrical direct current (DC) motor actuator. Linear actuator  26  may adjust distance between proximal end of secondary support  24 , to adjust an elevation angle E of main support bar  4 . Main support bar  4  and rod  8  may be telescopic with multiple segments, a segment fitting inside another segment, or otherwise length adjustable, for example by means of an internal linear actuator (not shown). A foot pedal  18  or a hand switch) not shown) may be pressed (step  37 ) to adjust overall length of support bar  4  and rod  8 . Another foot pedal or hand switch, when pressed, may actuate (step  37 ) linear actuator  26  to adjust overall length of support  24  and to adjust thereby elevation angle E. Foot pedals  18  may activate rocker switches (not shown) which electrically control direct current (DC) motor actuators (only actuator  26  is explicitly shown in  FIG. 1 ). Alternatively, length and elevational angle of main support bar  4  may be manually and/or mechanically adjustable by any known mechanism including pneumatic and/or hydraulic actuation. Azimuthal angle A adjustment and/or height adjustment may be achieved by attaching base  1  to a rotatable and lockable support platform. Utility trays for holding tools and/or arm supports may be attached to support  4  and/or rod  8 . 
     Reference is now also made to  FIG. 2 , illustrating an exploded view showing structural features and assembly of ergonomic device  100 , according to features of the present invention. Pelvic support  3  may connect via ball joint  9  to rod  8  which at least partially overlaps main support  4 . Rod  8  is shown attachable to a slidable element  27  internal to main support  4  using fasteners  12 . Pelvic support  3  may by height adjusted by adjusting rod  8  along varying positions along main support  4 . A rack and pinion between main support  4  and adjusting rod  8  may be used to adjust pelvic support  3  height during operation. Alternatively, main support  4  may be implemented with Slideway lifter  167  (Baumeister &amp; Schack GmbH Balingen, Germany) which is equipped with an internal electrical linear actuator which may drive slidable element  27 . Height adjustment of pelvic support  3  may be performed during operation using pedal  18  ( FIG. 1 ) by driving the internal electrical linear actuator or rack and pinion (not shown). 
     Clamp  25  may attach the proximal end of secondary support  24  at an intermedial point along main support  4 . Distal end of support  24  may attach to base  3  using a C-mount bracket  2  which includes a horizontal axle which provides elevational angle degree of freedom. 
     Elevational angle E adjustment may be performed with secondary support  24  including a linear actuator such as Actuator KoaxE™ (Baumeister &amp; Schack GmbH, Balingen Germany). Elevational angular adjustment may vary between ninety degrees and seventy degrees. Controllers of the linear electrical actuators may be used are the SYlmini™ manufactured by Baumeister &amp; Schack GmbH of Balingen Germany. Foot pedals  18  may be ELFUSS™ manufactured by Baumeister &amp; Schack GmbH. Balingen Germany. Battery power may be provided by a battery-pack 24 VDC 1.7 AH. Alternatively, power may be provided by power-cords wired to the electrical grid 
     Mechanical components are typically manufactured from stainless steel with anodized coating to prevent corrosion. Some components may be produced from aluminum. Pelvic support  3  may be upholstered using suitable materials, e.g. memory foam that are intended to provide comfort and shock absorption during prolonged contact with user  12 . 
     For use in a sterile environment, such as in surgery, pelvic support  3  and other components used herein, may be wiped down after each use, or may be covered for each use with appropriate materials such as are known in the medical field. 
     Cartesian coordinate xyz axes as shown in  FIG. 1  include a horizontal xy plane horizontal e.g parallel to a worktable, e.g. operating table. Elevation angle E is measured from the horizontal plane xy, and azimuthal angle A is measured from vertical plane xz. Twist angle is about the longitudinal or long axis of support bar  4  and rod  8 . 
     The terms “distal” and “proximal” as used herein are relative to the viewpoint of the user, for example base distal, proximal, intermedial are relative to the user so that distal is near base  1  and proximal is near the pelvic support  3 . The “intermedial” as used herein is a point between distal and proximal. 
     The term “memory foam” as used herein may include but not limited to a viscoelastic polyurethane material with additional chemicals configured to increase its viscosity and density, also known as low-resilience polyurethane foam (LRPu). Memory foam may soften in reaction to body heat, thereby molding to a warm body in a few minutes. 
     The term “pelvis” as used herein refers to the lower part of the torso located between the abdomen and the legs. The term “hip rest” as used in the priority document (U.S. patent application 62/853,065), filed 27 May 2019) and “pelvic support” as used herein are interchangeable and refers to support in the region of the body near the pelvis. By rotating, e.g. between horizontal and vertical orientations or otherwise adjusting pelvic support  3 , different regions of the body may be supported. 
     The working distance between user  12 , e.g. surgeon, and the person/object being operated on or worked on may be decreased by fixing base  1  on a platform, e.g 3-15 centimeters or higher. Depending on height of base  1 , elevation angle E in some embodiments may be decreased to less than seventy degrees to an angular range 45-70 degrees, by way of example. Accordingly, pelvic support  3  may be extended to support more perimeter around user&#39;s  12  body. 
     The transitional term “comprising” as used herein is synonymous with “including”, and is inclusive or open-ended and does not exclude additional, unrecited elements or method steps. The articles “a”, “an” is used herein, such as “a rod” or “a pelvic support” have the meaning of “one or more” that is “one or more rods”, “one or more pelvic supports”. 
     All optional and preferred features and modifications of the described embodiments and dependent claims are usable in all aspects of the invention taught herein. Furthermore, the individual features of the dependent claims, as well as all optional and preferred features and modifications of the described embodiments are combinable and interchangeable with one another. 
     Although selected features of the present invention have been shown and described, it is to be understood the present invention is not limited to the described features.