Bipedal motion assisting method and apparatus

• US 7,111,856 B1
• Filed: 10/06/2004
• Issued: 09/26/2006
• Est. Priority Date: 10/06/2003
• Status: Active Grant

• Current Assignee: Gary K. Graham
• Original Assignee: Gary K. Graham
• Inventors: Graham, Gary
• Primary Examiner(s): PHAN, HAU VAN
• Application Number:
  US10/960,364
• Time in Patent Office: 720 Days
• Field of Search: 280/87.05, 280/42, 280/250.1, 280/62, 280/304.1, 280/282, 280/87.021, 280/304.5, 482/68, 482/67, 482/66, 297/5, 297/6, 297/DIG.4, 188/109, 188/29, 188/74, 135/67, 135/66
• US Class Current: 280/87.021
• CPC Class Codes: A61G 5/00 Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs chairs with toilet conveniences A47K11/04; devices enabling patients or disabled persons to operate an apparatus or device not forming part of the body A61F4/00; running gear or propulsion features B60K; bicycles specially adapted for disabled riders B62K3/16 ; Invalid chairs having removable seats specially adapted to be transferred with the invalid to a vehicle and support the invalid during use of the vehicle A61G3/02
• CPC Class Codes: A61G 5/125 for arms
• CPC Class Codes: A61H 2003/046 with braking means
• CPC Class Codes: A61H 2201/1614 Shoulder, e.g. for neck stretching
• CPC Class Codes: A61H 3/04 Wheeled walking aids for patients or disabled persons

Abstract

A mobile support system having a central region that allows the legs to move in an unobstructed manner and providing an upper body support assembly where the weight is distributed between the elbow region and hand region of the individual for a desirable weight distribution for assisted bipedal motion such as walking or running.

Claims

1. A mobile support system having a longitudinal and lateral axis adapted to support an individual having a leg and right elbows and left and right hands, the mobile support system comprising:

a) a base frame comprising a first lateral frame member and a second lateral frame member, the first and second lateral frame members forming a central unobstructed region adapted to provide free motion of the leg of the individual,

b) a wheel assembly attached to the base frame and comprising a longitudinally rearward wheel subassembly and a longitudinal forward wheel subassembly, where the longitudinally rearward wheel subassembly comprises first and second longitudinally rearward wheels each having ground engagement locations, the longitudinally forward wheel subassembly having a ground engagement location that is positioned laterally between the ground engagement locations of first and second longitudinally rearward wheels, the longitudinally rearward wheel assembly is comprised of a laterally inward displacing device that is adapted to reposition the first and second longitudinally rearward wheels laterally inwardly when biased by an external force and the laterally inward displacing device of the longitudinally rearward wheel assembly is comprised of a four bar linkage assembly having a forward linkage and a rearward linkage that are both pivotally attached to the base frame and first and second wheel carriages of the first and second longitudinally rearward wheels, such that when the wheel carriage is repositioned laterally, the first and second wheel axes of rotation remain substantially aligned in the lateral direction,

c) an upper body support assembly attached to the base frame, the upper body support assembly comprising;

an elbow support region comprising first and second elbow supports adapted to support the left and right elbows of the individual,

a support handle assembly comprising first and second support handles adapted to be grasped by left and right hands,

d) whereas the body weight of the individual is adapted to be partially supported by the upper body support assembly whereby a portion of the weight is distributed to the elbow support region and a portion of the weight is distributed to the support handle assembly.

2. The mobile support system as recited in claim 1 where the first and second support handles are engaged to the base region by an intermediate locking member, whereby the support handle has a lower region that is threadedly engaged to an open recess of the intermediate locking member'"'"'s lowermost region of the support handle and engages the outer surface of the base region to fixedly and temporarily position the support handle assembly to the base region.

3. The mobile support system as recited in claim 2 whereby the base region is cylindrical and the intermediate locking member has a substantially longitudinally extending cylindrical cavity whereby the intermediate locking member can rotate about the central axis of the base region.

4. The mobile support system as recited in claim 1 whereby the upper body support assembly comprises an extendable post telescopically engaged to a base post of the base frame whereby a locking mechanism is adapted to fix the extendable post with respect to the base post to adjust the height of the upper body support assembly.

5. The mobile support system as recited in claim 1 whereby the upper body support assembly comprises a pitch adjustment system to vary the loads acting thereon between the elbow support region and the support handle assembly.

6. The mobile support system as recited in claim 5 whereby the pitch adjustment system comprises a pivot location and a partially circular slot and an engagement member having a handle region where the engagement member has a first location that is attached to the base frame.

7. The mobile support system as recited in claim 6 where the handle region is adapted to supply a rotational torque and frictionally engage the perimeter region of the partially circular slot.

8. The mobile support system as recited in claim 1 where the mobile support system has a storage orientation where the first lateral frame member is positioned closer in proximity in the lateral direction to the second lateral frame member.

9. The mobile support system as recited in claim 1 where the base frame comprises a laterally extending support member having an upper surface that is adapted to support the individual.

10. The mobile support system as recited in claim 1 where the first and second longitudinally rearward wheels have a diameter that is greater than eight inches.

11. A method of transporting an individual having a bodyweight and center of gravity, a leg and right elbows and left and right hands, the method comprising:

a) retrieving a mobile support system having a longitudinal and lateral axis adapted to support an individual, the mobile support system comprising a base frame comprising a first lateral frame member and a second lateral frame member, the first and second lateral frame members forming a central unobstructed region adapted to provide free motion of the legs of the individual, a wheel assembly attached to the base frame and comprising a longitudinally rearward wheel subassembly and a longitudinal forward wheel subassembly, where the longitudinally rearward wheel subassembly comprises first and second longitudinally rearward wheels each having ground engagement locations, the longitudinally forward wheel subassembly having a ground engagement location that is positioned laterally between the ground engagement locations of first and second longitudinally rearward wheels;

the longitudinally rearward wheel assembly being comprised of a laterally inward displacing device that is adapted to reposition the first and second longitudinally rearward wheels laterally inwardly when biased by an external force and the laterally inward displacing device of the longitudinally rearward wheel assembly is comprised of a four bar linkage assembly having a forward linkage and a rearward linkage that are both pivotally attached to the base frame and first and second wheel carriages of the first and second longitudinally rearward wheels, such that when the wheel carriage is repositioned laterally, the first and second wheel axes of rotation remain substantially aligned in the lateral direction;

an upper body support assembly attached to the base frame, the upper body support assembly having an elbow support region comprising first and second elbow supports adapted to support the left and right elbows of the individual and a support handle assembly comprising first and second support handles adapted to be grasped by left and right hands,

b) positioning the body weight of the individual in a manner to be partially supported by the upper body support assembly whereby a portion of the weight is distributed to the elbow support region and a portion of the weight is distributed to the support handle assembly to distribute a portion of the individual'"'"'s body weight thereon.

12. The method as recited in claim 11 whereby the upper body support assembly is extended by an extendable post telescopically engaged to a base post of the base frame whereby a locking mechanism is adapted to fix the extendable post with respect to the base post to adjust the height of the upper body support assembly.

13. The method as recited in claim 11 whereby the upper body support assembly comprises a pitch adjustment system to vary the loads acting thereon between the elbow support region and the support handle assembly.

14. The method as recited in claim 11 where the mobile support system is positioned in a storage orientation following a the transporting of the individual where the first lateral frame member is positioned closer in proximity in the lateral direction to the second lateral frame member and the total lateral width of the mobile support system is reduced and placed in a vehicle for transporting.

15. A mobile support system having a longitudinal and lateral axis adapted to support an individual having a leg and right elbows and left and right hands, the mobile support system comprising:

a) a base frame comprising a first lateral frame member and a second lateral frame member, the first and second lateral frame members forming a central unobstructed region adapted to provide free motion of the leg of the individual,

b) a wheel assembly attached to the base frame and comprising a longitudinally rearward wheel subassembly and a longitudinal forward wheel subassembly, where the longitudinally rearward wheel subassembly comprises first and second longitudinally rearward wheels each having ground engagement locations, the longitudinally forward wheel subassembly having a ground engagement location that is positioned forwardly and laterally between the ground engagement locations of first and second longitudinally rearward wheels, the longitudinally rearward wheel assembly being comprised of a laterally inward displacing device that is adapted to reposition the first and second longitudinally rearward wheels laterally inwardly and is comprised of a four bar linkage assembly having a forward linkage and a rearward linkage that are both pivotally attached to the base frame and first and second wheel carriages of the first and second longitudinally rearward wheels, such that when the wheel carriage is repositioned laterally, the first and second wheel axes of rotation remain substantially aligned in the lateral direction,

c) an upper body support assembly attached to the base frame, the upper body support assembly comprising;

an elbow support region comprising first and second elbow supports adapted to support the left and right elbows of the individual, a support handle assembly comprising first and second support handles adapted to be grasped by left and right hands,

d) whereas the body weight of the individual is adapted to be partially supported by the upper body support assembly whereby a portion of the weight is distributed to the elbow support region and a portion of the weight is distributed to the support handle assembly and the mobile support system has a storage orientation where the first lateral frame member is positioned closer in proximity in the lateral direction to the second lateral frame member.

16. The mobile support system as recited in claim 15 whereby the upper body support assembly comprises a pitch adjustment system to vary the loads acting thereon between the elbow support region and the support handle assembly and the pitch adjustment system comprises a pivot location and a partially an engagement member having a handle region where the engagement member has a first location that is attached to the base frame and where the handle region is adapted to supply a rotational torque and frictionally engage the perimeter region of the engagement member.