Walking brace

• US 5,577,998 A
• Filed: 02/03/1995
• Issued: 11/26/1996
• Est. Priority Date: 02/03/1995
• Status: Expired due to Fees

• Current Assignee: Aircast, Inc. (Enovis Corp.)
• Original Assignee: Aircast, Inc. (Enovis Corp.)
• Inventors: McVicker, Henry J., Johnson, Glenn W. Jr.
• Primary Examiner(s): Brown, Michael A.
• Application Number:
  US08/383,469
• Time in Patent Office: 662 Days
• Field of Search: 128/869, 128/882, 128/DIG. 20, 602/23, 602/27, 602/13, 602/19
• US Class Current: 602/5
• CPC Class Codes: A61F 5/0111 for the feet or ankles
• CPC Class Codes: A61F 5/012 inflatable
• CPC Class Codes: Y10S 128/20 Inflatable splint

Abstract

A walking brace is disclosed having inflatable air cells to provide therapeutic pressure to the patient'"'"'s leg and which requires no external equipment or oral inflation tube for reinflation. Each air cell contains a piece of resilient foam, which allows air to come in through an external connection to inflate the air cell when the foam within the air cell expands and the external connection is open. Similarly, when the external connection is open, air leaves the air cell through the external connection in response to pressure on the air cell. However, once the external connection is closed, the air cell maintains its volume of air.

Claims

1. A walking brace for providing therapeutic pressure to the lower leg of a patient, said brace comprising:

an exterior shell adapted to fit substantially around the lower leg of a patient;

an interior resilient liner to cushion the leg;

at least one inflatable air cell located in said interior liner for providing an adjustable desired therapeutic pressure to said leg;

connection means movable between a closed condition and an open condition which links the interior of said air cell with the atmosphere;

passive reinflation means within said air cell for cooperating with said connection means when a user opens said connection means to facilitate reinflation of said air cell without an additional active reinflation means and deflation of said air cell when the user applies pressure to said air cell to deflate said air cell to a desired lower pressure;

said passive reinflation means maintaining said air cell at a desired pressure when the user closes said connection means; and

means for securing said walking brace about the lower leg such that said air cell puts pressure on the lower leg.

2. The walking brace of claim 1 wherein said reinflation means is foam that expands when said connection means is unsealed causing air to enter said at least one air cell through said connection means and to reinflate said at least one air cell.

3. The walking brace of claim 1 wherein said reinflation means is thicker than the typical space between said exterior shell and the lower leg.

4. The walking brace of claim 1 wherein said connection means comprises a plastic tube.

5. The walking brace of claim 1 wherein, when fully inflated, said at least one air cell is thicker than the typical space between said exterior shell and the lower leg.

6. The walking brace of claim 1 comprising at least two said air cells.

7. The walking brace of claim 6 wherein each of said air cell has a separate connection means and separate sealing means.