A wheelchair transfer device is configured for moving an invalid patient from a flat surface to a seated position for transport in the seated position on the transfer device. The transfer device includes a rolling base supported by casters and convertible low profile rollers that are configured to f
A wheelchair transfer device is configured for moving an invalid patient from a flat surface to a seated position for transport in the seated position on the transfer device. The transfer device includes a rolling base supported by casters and convertible low profile rollers that are configured to fit under the base of a hospital bed and convert to a larger diameter wheel without altering the height of the transfer device. The transfer device includes a leg portion, a torso portion and a seat portion configured to be coplanar for adaptation to a hospital bed, so that an invalid patient can, with assistance, roll onto the device. The seat portion can then be raised against the patient's buttocks, generally perpendicular to the leg and torso portions, and the whole assembly can then be rotated to a vertical position, with the seat portion supporting the weight of the patient.
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What is claimed is: 1. A wheelchair transfer device comprising: a base portion; and a patient support portion supported by the base portion, the patient support portion being convertible from a generally horizontal reclined position to an upright position and including a seat portion and a torso su
What is claimed is: 1. A wheelchair transfer device comprising: a base portion; and a patient support portion supported by the base portion, the patient support portion being convertible from a generally horizontal reclined position to an upright position and including a seat portion and a torso support portion, the seat portion being configured for pivoting from the generally horizontal reclined position to a raised position while the torso portion remains in the generally reclined position and pivoting back to the generally horizontal reclined position simultaneously with the torso support portion of the patient support portion raising from the generally horizontal reclined position to an upright position to form a seat, said patient support portion comprising a flexible body having a continuous surface forming said seat portion and said torso portion. 2. The wheelchair transfer device according to claim 1, further comprising a frame, the frame supporting the flexible body and a knee-board, the knee-board being generally coplanar and laterally adjacent the flexible body when the patient support portion is in the generally horizontal reclined position. 3. The wheelchair transfer device according to claim 1, further comprising a frame, the frame supporting and suspending the flexible body at opposed ends of the flexible body above the frame. 4. The wheelchair transfer device according to claim 3, wherein said continuous surface extends between the opposed ends of the flexible body. 5. A wheelchair transfer device for raising a patient from a prone position to a seated position, the transfer device comprising: a mobile base unit; and a patient support unit mounted on the mobile base unit for positioning adjacent a patient support surface, the patient support unit comprising: a pivotal seat frame pivotal for rotation between a horizontal position and a vertical position; a torso support frame pivotally mounted to the seat frame and being pivotal for rotation between a horizontal position and a vertical position; a knee-board being connected to the torso support frame; a fixing mechanism positioned between the seat frame and the torso support frame for selectively locking an angular orientation therebetween; and a flexible seat body connected at a first end to the seat frame and at a second end to the torso support frame. 6. A wheelchair transfer device for raising a patient from a prone position to a seated position, the transfer device comprising: a mobile base unit; and a patient support unit mounted on the mobile base unit for positioning adjacent a patient support surface, the patient support unit comprising: a pivotal seat frame pivotal for rotation between a horizontal position and a vertical position; a torso support frame pivotally mounted to the seat frame and being pivotal for rotation between a horizontal position and a vertical position; a knee-board being connected to the torso support frame; and a fixing mechanism positioned between the seat frame and the torso support frame for selectively locking an angular orientation therebetween; wherein the fixing mechanism is pivotally mounted to one of the seat frame and the torso support frame and the fixing mechanism comprising a plurality of recesses configured for selectively locking the angular orientation between the seat frame and the torso support frame. 7. The A wheelchair transfer device for raising a patient from a prone position to a seated position, the transfer device comprising: a mobile base unit; and a patient support unit mounted on the mobile base unit for positioning adjacent a patient support surface, the patient support unit comprising: a pivotal seat frame pivotal for rotation between a horizontal position and a vertical position; a torso support frame pivotally mounted to the seat frame and being pivotal for rotation between a horizontal position and a vertical position; a knee-board being connected to the torso support frame; a fixing mechanism positioned between the seat frame and the torso support frame for selectively locking an angular orientation therebetween; and a driver for selectively lowering the torso support frame between the vertical and horizontal positions when the angular orientation between the torso support frame and the seat frame is unlocked and raising the torso support frame and the seat frame to a seated position when the angular orientation between the torso support frame and the seat frame is locked. 8. The wheelchair transfer device according to claim 7, wherein the frame support member comprises a first frame support member, and further comprising a second frame support member, wherein the driver is pivotally mounted to the second frame support member. 9. The wheelchair transfer device according to claim 8, wherein the driver is pivotally mounted to the torso support frame. 10. The wheelchair transfer device according to claim 7, wherein the driver comprises one chosen from an electric drive mechanism, a hydraulic drive mechanism, and a pneumatic drive mechanism. 11. A method for operating a wheelchair transfer device having a patient support portion comprising a pivotally mounted torso support frame with an attached knee-board, a pivotally mounted seat frame selectively positionable relative to the torso support frame, with a flexible seat body extending between the torso support frame and the seat frame, the method comprising: moving a patient onto the wheelchair transfer device, wherein said moving includes positioning the side of the patient to face the patient support portion; placing the patient's legs onto the knee-board; rotating the seat frame upwardly until the flexible seat body cradles the underside of the patient's upper legs, wherein the seat frame and the torso support frame are arranged at approximately 90 degrees; locking the seat frame position relative to the torso support frame; and rotating the torso support frame and the seat frame locked therewith to move the torso support frame and the seat frame to a seated position wherein the torso support frame is in a generally vertical orientation, the seat frame being locked therewith to rotate back to the horizontal position. 12. The method according to claim 11, further comprising raising the wheelchair transfer device with the patient after the patient has been moved onto the wheelchair transfer device. 13. The method according to claim 11, further comprising lowering the patient support portion of the wheelchair transfer device onto the bed surface prior to moving the patient onto the wheelchair transfer device. 14. The method according to claim 11, further comprising providing an actuator for pivoting the torso support frame, and activating the actuator to rotate the torso support frame when raising the patient to a seated position. 15. The method according to claim 14, wherein providing an actuator comprises providing a driver, and the activating comprises powering the driver. 16. A wheelchair transfer device comprising: a mobile base unit; and a patient support unit mounted to the mobile base unit, the patient support unit comprising a generally C-shaped frame configured to unfold about a pivot axis and in a pivot plane to an open configuration and to fold about the pivot axis in the pivot plane to a generally C-shaped configuration, the C-shaped frame having a pair of cantilevered members at opposed ends of the C-shaped frame, and the patient support unit further comprising a flexible patient support surface supported by and extending between the cantilevered members wherein the flexible patient support surface is generally planar when the C-shaped frame is unfolded, and the flexible patient support surface forms a seat configuration when the C-shaped frame is in its generally C-shaped configuration. 17. The wheelchair transfer device according to claim 16, wherein the generally C-shaped frame includes a torso support frame and a seat frame, further comprising a knee-board, the knee-board having a knee support surface, and the knee support surface being generally perpendicular to the pivot plane. 18. The wheelchair transfer device according to claim 17, wherein the knee-board is mounted to the torso support frame. 19. A wheeled transfer device comprising: a base unit; a member mounted to the base unit, said member having a longitudinal axis and being rotatable about said longitudinal axis; a roller assembly mounted to the member, the roller assembly comprising: an inner roller rotatably mounted about an axis of rotation; and an outer roller rotatably mounted about the inner roller wherein the first roller is configured to contact a floor surface when the member is in a first orientation, the second roller being configured to contact the floor surface when the member is rotated about longitudinal axis to a second orientation generally orthogonal to the first orientation, and when the first roller contacts the floor surface the member is at a first distance from the floor surface, and when the second roller contacts the floor surface the member is at a second distance generally equal to the first distance from the floor surface to thereby form a lower profile roller assembly. 20. The wheeled transfer device according to claim 19, wherein the outer roller comprises an annular roller. 21. The wheeled transfer device according to claim 20, wherein the inner roller comprises a roller ball. 22. The wheeled transfer device according to claim 19, wherein the axis of rotation comprises a first axis of rotation and the outer roller is rotatable about a second axis of rotation offset from the first axis of rotation.
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이 특허를 인용한 특허 (4)
Griswold, Lee F; Gilchrest, Edward A; Eidinger, Bruce; Beckstrom, David, Patient transfer system.
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