Composite base assembly for cane having fifth leg

• US 5,794,638 A
• Filed: 11/07/1996
• Issued: 08/18/1998
• Est. Priority Date: 11/07/1996
• Status: Expired due to Term

• Current Assignee: Invacare Corporation
• Original Assignee: Invacare Corporation
• Inventors: Obitts, Shane, Richey, Joseph B.
• Primary Examiner(s): Coggins, Wynn Wood
• Application Number:
  US08/743,757
• Time in Patent Office: 649 Days
• Field of Search: D 3/3, D 3/17, 135/65, 135/67, 135/68, 135/77, 135/911, 135/78, 135/79, 135/80, 135/81, 135/82, 135/86
• US Class Current: 135/65
• CPC Class Codes: A61H 2003/0205 Crutches with no pivoting movement during use, e.g. tripods
• CPC Class Codes: A61H 3/02 Crutches

Abstract

A patient support device, particularly a cane, includes a fifth leg that extends outwardly from a central portion of a base assembly at a region intermediate the first, second, third, and fourth legs. The fifth leg provides increased balance and stability for the user. Moreover, the base assembly includes a one-piece member constructed from a molded plastic composite material to reduce manufacturing costs. Additionally, the fifth leg is slightly recessed relative to the remaining four legs so that the patient'"'"'s weight is evenly distributed to the perimeter of the support area defined by the base member.

Claims

1. In a patient support device having a handle conformed to receive weight from a patient,;

an stem member operatively associated with the handle, and having first and second ends, the first end receiving the patient'"'"'s weight from the surface for transfer to the second end;

a base assembly operatively associated with the second end of the stem member and including first, second, third, and fourth legs extending outwardly therefrom for transferring the patient'"'"'s weight from the stem member to an associated ground surface, the improvement comprising;

a fifth leg extending outwardly from the base member in a region intermediate the first, second, third, and fourth legs, each of the first, second, third, fourth and fifth legs includes a non-slip tip on the terminal end of the legs adapted to engage the ground surface, the tip of the fifth lea being disposed on an external surface of the base member.

2. The patient support device as defined in claim 1 wherein the first, second, third, and fourth legs are disposed about the perimeter of the base assembly.

3. The patient support device as defined in claim 1 wherein the fifth leg is generally centrally disposed among the first, second, third, and fourth legs.

4. The patient support device as defined in claim 1 wherein the fifth leg extends outwardly from the base member a dimension less than the first, second, third, and fourth legs.

5. The patient support device as defined in claim 1 wherein the base member is formed from a one-piece plastic material.

6. The patient support device as defined in claim 1 wherein the first, second, third, and fourth legs are symmetrically spaced about an axis in first and second pairs about the periphery of the base member and the fifth leg is substantially located on the axis of symmetry.

7. A cane for supporting a patient comprising:

a stem having a handle at one end for gripping by a patient; and

a base member secured to a second end of the stem, the base member including first, second, third, and fourth peripherally spaced legs extending outwardly therefrom, and a fifth leg substantially centrally disposed between the other legs and extending outwardly from an external surface of the base member in the same direction as the other legs, wherein the each of the legs includes a rubber tip for engaging the ground surface.

8. The cane as defined in claim 7 wherein the fifth leg extends outwardly from the base member a dimension less than the other legs.

9. The cane as defined in claim 7 wherein the base member is constructed from a plastic material.

10. The cane as defined in claim 7 wherein the fifth leg extends outwardly from the base member in an opposite direction than the stem member.

11. The cane as defined in claim 10 wherein the fifth leg is directly connected to the stem member.

12. The cane as defined in claim 11 wherein the stem member is a two-part construction that allows the height of the cane to be selectively adjusted.