| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 1 | Orthopedic chair | US36977 | 1998-03-09 | US6123390A | 2000-09-26 | Louis A. Greenwald |
| An orthopedic chair designed to place the lumbar spine in a position of lordosis and to assist the user to sit more erect and not slouch. This takes stress off the cervical spine as well as the lumbar spine. The back of the chair has a lumbar roll positioned at the user's belt line and a seat contoured to support the user's thighs so that the knee joints are positioned below the hip joints. A pommel between the thigh supports keeps the user from sliding forwardly and presses the lumbar spine into the lumbar roll. | ||||||
| 2 | Seat cushion pad for automobiles | US149960 | 1998-09-09 | US6089657A | 2000-07-18 | Masanobu Banno; Tsutomu Nakajima; Hiroaki Ono; Junji Yamamoto |
| A seat cushion pad for automobiles, wherein at least a part of the seat surface portion comprises a high-resilience foam. The foam is selected such that a load ratio (3%ISR) between a load at which the thickness is 25% compressed when pressed with a pressure plate having a diameter of 60 mm (25%-strain load) and a load at which the thickness is 3% compressed when pressed with the same pressure plate (3%-strain load) is at least about 6. Alternatively, another ratio (5%ISR) between the load at which the thickness is 25% compressed when pressed with the above dimensioned pressure plate (25%-strain load) and a load at which the thickness is 5% compressed when pressed with the pressure plate (5%-strain load) is selected to be at least about 4. Such design provides comfortable seating and resistance against fatigue even during periods of extended driving, and can be prepared at a low cost with a large degree of design freedom. | ||||||
| 3 | Seat construction which corrects the pelvis so that it influences a proper alignment of the human body | US240296 | 1999-01-29 | US6079782A | 2000-06-27 | Joseph A. Berg; Eugene Wheat |
| A seat construction corrects the pelvis so that it influences a proper alignment of the body. The seat construction has at least four independent seat assemblies which are supported by a base plate. Each seat assembly includes a frame shaped support affixed to the base plate, a rigid support plate affixed to the top of the frame shaped support, and a full foam seat cushion affixed to the top of the support plate. In an alternative embodiment, the seat construction has at least four independent seat assemblies which are supported by a base plate. Each seat assembly includes a frame shaped support affixed to the base plate, a rigid support plate affixed to the top of the frame shaped support, and a full foam seat cushion affixed to the top of the support plate. Each seat assembly further includes at least three springs embedded within the frame shaped support for further supporting the weight of an individual to improve the posture of the individual by more efficiently supporting the weight of the individual who sits on the seat construction and adjusting the height of the independent seat sections to accommodate movement of the individual sitting in the seat construction. | ||||||
| 4 | Cushion with gel sac and gel overlay | US908566 | 1997-08-08 | US5918334A | 1999-07-06 | Colin A. Laidlaw |
| A cushion, generally indicated, comprises a foam portion and a gel portion. The foam portion has a rear section defining a cavity, while the front section is shaped to support the users' thighs. The gel portion comprise a gel sac, which substantially fills the cavity and an overlay that extends over the gel sac and the front section of foam. The overlay is attached to the bag to maintain their relative portions, but gel cannot flow between them. | ||||||
| 5 | Dynamic posture chair | US811499 | 1997-03-05 | US5873628A | 1999-02-23 | Peter B. Allard; Jack K. Hockenberry; Harry C. Sweere |
| A dynamic posture chair is disclosed which is capable of use in a range of sit/stand positions. The chair includes a mobile base that is selectively movable by the user and the chair member that is mounted to the base with a tilt mechanism that enables the chair member to be selectively and infinitely tilted over a predetermined of tilt positions while resistively restraining the chair member in the selected tilt position. The chair member includes seat and back members that relatively subtend an angle in the range of about 120 degrees to 135 degrees. The chair member has a uniquely shaped fixed seat/back contour that instantly supports in comfort the back, buttocks and thighs of the user in its lowest and highest vertical positions, and in all positions in between. The tilt mechanism prevents the chair member to be pivotally tilted over an angular range of not greater than about 30 degrees, enabling the user to fully sit on the chair in the rearward most tilt position, and to rest his/her feet at least partially on the floor in the forward most tilt position. | ||||||
| 6 | Wheelchair seat assembly with contoured seat pan and cushion and method | US915351 | 1997-08-20 | US5836654A | 1998-11-17 | Pamela C. DeBellis; Grant C. Denton; John C. Dinsmoor, III; Richard R. Runkles |
| A seat assembly (21) for a wheelchair including a relatively rigid seat base (12) of substantially uniform thickness with an upwardly facing contoured top surface (14) and a cushion assembly mounted on the seat base. The cushion assembly includes a relatively soft foam member (30) substantially covering the seat base (12) for localized deformation of the foam member and for communication of the influence of contours on the seat base (12) through the foam member (30) to the user. In the preferred form, a flexible pouch (40) having a viscous fluid-like material contained therein is positioned in a recess (38) in the foam member (30) in the area of the user's ischial tuberosities and coccyx, and a water-impervious, flexible elastomeric envelope (50) completely surrounds the foam member (30) and the fluid-containing pouch (40). The fluid pouch (40) has a size greater than the plan area of recess (38) in the foam member (30) and is placed in a semi-collapsed condition in the recess so as to be displaceable without hammocking. Additionally, elastomeric envelope (50) has a sheet area greater than the area of the semi-collapsed fluid pouch (40) to ensure that the envelope (50) does not hammock under the user's weight. Finally, a hydrophobic cover (60) can be mounted over the cushion assembly and to the seat base (12). A method of supporting a user on a wheelchair seat assembly is also disclosed. | ||||||
| 7 | Tilt control mechanism for a chair | US484781 | 1995-06-07 | US5772282A | 1998-06-30 | William E. Stumpf; Rodney C. Schoenfelder; Donald Chadwick; Carolyn Keller; Timothy P. Coffield; Randy J. Sayers; Jeffrey W. Bruner; George A. Miles; Eric Cammenga; Philip Crossman |
| An apparatus for controlling the tilt range of a chair and the resistance to tilting of the chair including a torsion spring mounted to an axle, a tilt rate adjustment mechanism, a forward tilt limiter and a rearward tilt limiter. The tilt rate adjustment mechanism includes an outer sleeve member mounted to the spring. An arm extends radially outward from the sleeve and operably engages a block member threadably attached to a screw. A first and second gear member are actuated to rotate the screw so as to move the block member which thereby moves the arm a desired amount to adjust the initial return torque of the spring. The forward tilt limiter includes an arm extending outwardly from the axle. The arm operably engages a pivot member pivotally attached to a tilt control housing. The rearward tilt limiter also includes an arm extending outwardly from the axle. The arm operably engages a cam member pivotally attached to the tilt control housing. | ||||||
| 8 | Seating and back systems for a wheelchair | US632898 | 1996-04-16 | US5671977A | 1997-09-30 | Eric C. Jay; John C. Dinsmoor, III |
| An anti-thrust seating system and low profile, adjustable back system primarily intended for use in a wheelchair. The anti-thrust seating system includes a base seating member with a forward section to support the user's thighs and a rearward section to support the user's buttocks including the ischial tuberosities. The upper surfaces of the forward and rearward sections meet to form an edge extending across the base seating member. The upper surface of the rearward section has two portions which form a first step face or anti-thrust barrier to the user's ischial tuberosities. The seating system further includes at least one separate step means that can be removably positioned adjacent and rearwardly of the first step face wherein the separate step means has a second step face. The separate step means also has an upper surface which serves to effectively extend the thigh supporting surface or shell rearwardly. The adjustable back system has first and second relatively rigid shell members with a back cushion removably attached to the second or forward shell member. In their retracted positions, portions of both the first and second shell members and cushion extend between and along the back posts of the wheelchair and very little of the back extends forward of the back posts. | ||||||
| 9 | Therapeutic seat | US288018 | 1994-08-10 | US5580128A | 1996-12-03 | Robert E. Johnson; David H. Johnson |
| The invention is an improved seat device to be used by those who have pain or discomfort sitting on a regular seat. The seat device can be attached to a chair frame or be used as a portable unit in the home or while traveling. | ||||||
| 10 | Wheelchair cushion and cover | US457619 | 1995-06-01 | US5568660A | 1996-10-29 | Richard W. Raburn; Fred T. Wickis, Jr. |
| Pressure relief for wheelchair patients is improved by use of a relatively higher density foam, such as 2.4 pounds per cubic foot or above and a 25 percent ILD characteristic of at least about 50 pounds, together with independently acting cube shaped segments. The segments have predetermined respective separation and rounded upper edges with a predetermined radius of curvature which is larger about the periphery of the wheelchair pad. A relatively lowered pad thickness of about 3 inches facilitates patient movement onto and off from a wheelchair cushion. A removable covering of laminated materials is stretchable so as to slide over the rounded edges of the segments and down into separations therebetween to maintain independent action of such segments during use with the covering. An upper layer of the covering comprises a base layer of woven fabric of elastic synthetic fibers. A lower layer of the covering comprises a water resistant coating of urethane generally at least about 1 mil thick. The stretchable covering features can be used separately with other forms of patient supports, such as mattress pads having convolutions or other forms of independent support segments with separations therebetween. | ||||||
| 11 | Modular cushion construction with detachable pommel, having a cover with front and rear openings | US554541 | 1995-11-07 | US5551107A | 1996-09-03 | Robert H. Graebe |
| A modular cushion comprising a shaped base which has a flat rear portion having a substantially flat center area and a raised front portion with angularly directed valleys on each side, a removable pommel releasably secured to the flat center portion, a resilient pad positioned on the flat portion of the base to relieve pressure on the ischial and trochanters and a cover having a non-skid undersurface and two-way stretchable material covering a portion of the top. The cover has a front panel and a rear panel, with a large opening in the rear panel to allow the cover to be positioned over the base, and a smaller opening in the front panel aligned with the center portion of the base and with the pommel whereby the pommel can be inserted and removed through the opening by a person seated on the cushion, and a flap, including means for retaining the flap in closed position, hingedly connected to the front panel and shaped to cover said opening. The resilient pad preferably has an array of upstanding interconnected inflatable cells. The base is of porous cellular material and has a water impervious separate integral skin adhered over the top surface for strength and protection. | ||||||
| 12 | Wheelchair cushion and cover | US903790 | 1992-06-24 | US5459896A | 1995-10-24 | Richard W. Raburn; Fred T. Wickis, Jr. |
| Pressure relief for wheelchair patients is improved by use of a relatively higher density foam, such as 2.4 pounds per cubic foot or above and a 25 percent ILD characteristic of at least about 50 pounds, together with independently acting cube shaped segments. The segments have predetermined respective separation and rounded upper edges with a predetermined radius of curvature which is larger about the periphery of the wheelchair pad. A relatively lowered pad thickness of about 3 inches facilitates patient movement onto and off from a wheelchair cushion. A removable covering of laminated materials is stretchable so as to slide over the rounded edges of the segments and down into separations therebetween to maintain independent action of such segments during use with the covering. An upper layer of the covering comprises a base layer of woven fabric of elastic synthetic fibers. A lower layer of the covering comprises a water resistant coating of urethane generally at least about 1 mil thick. The stretchable covering features can be used separately with other forms of patient supports, such as mattress pads having convolutions or other forms of independent support segments with separations therebetween. | ||||||
| 13 | Back cushion and seat cushion system | US269107 | 1994-06-30 | US5456519A | 1995-10-10 | Samuel C. Davis |
| A seat cushion and back cushion system comprising a back cushion further comprising a lower section having an inner surface, an outer surface, a bottom edge with opposed side edges, and a raised sacral counter pressure pad disposed thereon; and a upper section extended upwards from the lower section, the upper section having an inner surface, an outer surface, a top edge with opposed side edges coupled with the side edges of the lower section, with the inner surface and the side edges thereof bulging outwards to define a curved pillow; a seat cushion further comprising a raised outer section for supporting the femurs of a user thereon having a inner surface, an outer surface, and a front edge and opposed and side edges extended laterally therefrom; and a depressed inner section having an inner surface, an outer surface, a top edge and opposed side edges extended from the top edge and coupled to the side edges of the outer section, and two spaced concave depressions formed thereon defining a saddle. | ||||||
| 14 | Pressure relief back cushion | US102148 | 1993-08-04 | US5452940A | 1995-09-26 | Edmund K. Maier |
| An integral lower back pressure relief cushion with a substantially U-shaped aperture at the lower portion of the cushion open at the bottom and extending from the front to the rear of the cushion, such that the sacral and coccyx areas of the user are free from pressure contact while the portions of the cushion on either side of the aperture support the posterior superior iliac spine of the user, the cushion comprising at least three segments of resilient material, a removable convex shape in the front side above the aperture, and the rear side having a convex side and support base. | ||||||
| 15 | Static chair | US170188 | 1993-12-22 | US5439270A | 1995-08-08 | Earl R. Owen |
| A static chair designed to provide the user in both upright and slumped positions by the provision of different shaped layers of foam plastics material of different densities in various regions of the cushion and backrest. The cushion has a base layer of foam in which are inset two zones of lower density foam located in regions beneath the buttocks of a typical user in the upright and slumped positions respectively. The backrest is also contoured to provide lumbar support in both upright and slumped positions by the provision of foam material layers of different densities. The cushion and backrest are designed so that they may be substituted for materials in existing static chairs typically used in a theater situation without requiring total chair replacement. | ||||||
| 16 | Seat cushion assembly | US269146 | 1994-06-30 | US5414884A | 1995-05-16 | Robert O. Mackenzie |
| A seat cushion assembly is provided that is specifically designed to alleviate the problems, such as discomfort, pressure sores, pressure ulcers, and hemorrhoids, that are associated with long term sedentary positions (i.e. patients in wheelchairs). The seat cushion assembly of the present invention includes a base having a pair of openings. Cushion inserts are located in the openings. The seat cushion assembly, when in use, provides an individual with an equal amount of pressure distribution in the gluteal region. | ||||||
| 17 | Lumbar supporting seat cushion | US110815 | 1993-08-23 | US5407247A | 1995-04-18 | Robert A. Forcier; Marsha M. Forcier |
| A seat cushion for prolonged sitting, having a thigh cushion coupled to and spaced apart from a back cushion. A seat well is defined between the thigh cushion and the back cushion to remove pressure from the buttocks region. Coupling members couple the thigh cushion and the back cushion, and extend therebetween on either side of the seat well. | ||||||
| 18 | Orthopedic seat cushion with upstanding projections | US223233 | 1994-04-05 | US5402545A | 1995-04-04 | B. Jeffrey Jolley |
| An orthopedic seat cushion for permitting free circulation and protecting the user's coccyx comprising a unitary body formed of expanded polymeric foam and a skin enclosing said foam is disclosed. | ||||||
| 19 | Seating system | US252982 | 1994-06-03 | US5395162A | 1995-03-07 | Eric C. Jay; John C. Dinsmoor, III; Grant C. Denton; Richard R. Runkles |
| A seating system for wheelchairs and other applications. The seating system includes a base member with an upper surface and a fluid pad positioned on the upper surface. The upper surface is preferably contoured and dimensioned to have areas corresponding to the user's ischial tuberosities and coccyx as well as the user's femurs including trochanters. The fluid pad in the preferred embodiment is one piece and has at least three separate and distinct pouches filled with fluid. Each pouch includes seals to contain the fluid in each pouch and to isolate and prevent fluid communication with the fluid in the other two pouches. Each pouch of the pad is then respectively positioned on the upper surface of the base member under the user's ischial tuberosities and coccyx. In this manner, each of the user's ischial tuberosities and coccyx is thereby supported on its own separate and distinct fluid pouch. | ||||||
| 20 | Inflatable cushion with upstanding pyramidal air cells | US12580 | 1993-02-03 | US5369828A | 1994-12-06 | Robert H. Graebe |
| An integral inflatable cushion comprises a flexible bottom wall and a plurality of upstanding air cells having flexible generally vertical side walls, said air cells being substantially pyramidal in shape and having a substantially rectangular flexible lower section defined by the vertical side walls and sealed to the bottom wall, and a flexible domed tapered top area connected to the vertical side walls, the side walls of adjacent cells being separated and spaced apart to define lateral and longitudinal paths and being independently upstanding when inflated, and tubing connected to the air cells through the bottom wall to adjust and monitor the air pressure in the cells from beneath the cushion. | ||||||
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