Therapeutic knee brace for a contrast therapy system

• US 8,425,579 B1
• Filed: 10/03/2006
• Issued: 04/23/2013
• Est. Priority Date: 10/08/2002
• Status: Expired due to Fees

• Current Assignee: Vitalwear Incorporated
• Original Assignee: Vitalwear Incorporated
• Inventors: Edelman, Howard, Liu, Daqing
• Primary Examiner(s): Dvorak, Linda
• Assistant Examiner(s): SMITH, KAITLYN ELIZABETH
• Application Number:
  US11/538,278
• Time in Patent Office: 2,394 Days
• Field of Search: 607/104, 607/108, 607/112, 607/114, 601/34
• US Class Current: 607/104
• CPC Class Codes: A61F 2007/0018 Trunk or parts thereof
• CPC Class Codes: A61F 2007/0054 with a closed fluid circuit, e.g. hot water
• CPC Class Codes: A61F 2007/0056 for cooling
• CPC Class Codes: A61F 2007/0296 Intervals of heating alternated with intervals of cooling
• CPC Class Codes: A61F 5/0123 for the knees A61F5/0106 takes precedence
• CPC Class Codes: A61F 7/0085 Devices for generating hot or cold treatment fluids
• CPC Class Codes: A61F 7/02 Compresses or poultices for effecting heating or cooling

Abstract

The present invention relates to a therapeutic knee brace system including a leg brace for support, a retainer for securing the therapeutic knee brace system to a knee joint therapy site, a brace joint providing a limited range of flexion to the knee brace, and an active thermal exchange bladder coupled to a contrast therapy system for delivering a therapy fluid at a select temperature, pressure and rate. Thermal exchange bladder is removable, and the pressure may be constant or dynamic. The angle of flexion may be selected by the therapy recipient, and the range of flexion of the brace joint is configurable. The knee brace may communicate range and instant angle of flexion of the brace joint to a continuous passive motion (CPM) device, and communication may be mechanical, electronic or wireless. A knee brace coupler attaches to a CPM coupler on the CPM device to selectively couple the therapeutic knee brace system to the CPM device.

Claims

1. A therapeutic knee brace system useful in association with a knee joint therapy recipient, a thermal contrast therapy system and a continuous passive motion (CPM) device, the therapeutic knee brace system comprising:

a leg brace configured to support a leg of the therapy recipient, wherein the leg brace includes a left lower bracing member, a right lower bracing member, a left upper bracing member and a right upper bracing member, wherein the right lower bracing member couples to the right upper bracing member via a right brace joint, and the left lower bracing member couples to the left upper bracing member via a left brace joint, further wherein the angle of flexion of at least one of the right and left brace joint is configurable by the therapy recipient, and wherein each of the left lower bracing member, the right lower bracing member, the left upper bracing member and the right upper bracing member are each configured to detachably couple to a single corresponding arm of a continuous passive motion device via a pin and slot, and wherein the therapeutic knee brace system communicates with the CPM device, and wherein the communication includes dynamic transmission of the angle of flexion and range of flexion, and wherein the communication may be mechanical, electrical or wireless, and wherein the leg brace includes at least one retainer for securing the leg of the therapy recipient to the leg brace; and

an active thermal exchange bladder configured to fit the knee joint of the therapy recipient, and wherein the active thermal exchange bladder is coupled to a thermal contrast therapy system that delivers a thermal therapy fluid to the thermal exchange bladder, and wherein the active thermal exchange bladder includes a strain relief dart which reduces bunching of the active thermal exchange bladder as the therapy recipient'"'"'s knee joint is bent within the range of flexion.

2. The therapeutic knee brace system of claim 1, wherein the angle of flexion is selectable by the therapy recipient.

3. The therapeutic knee brace system of claim 1, wherein the active thermal exchange bladder may be coupled to the leg brace using a strapping system.

4. The therapeutic knee brace system of claim 1, wherein the thermal contrast therapy system includes a hot reservoir for holding a relatively hot fluid, a cold reservoir for holding a relatively cold fluid, a mixing valve for receiving a selected ratio of the hot and cold fluids from the hot and cold reservoirs to generate the therapy fluid, a pump for pumping the therapy fluid, and operable to deliver the therapy fluid with a therapy temperature determined by the selected ratio.

5. The therapeutic knee brace system of claim 4, wherein the thermal exchange bladder provides compression on the knee joint of the therapy recipient, wherein the compression is generated by pressure within the thermal exchange bladder, and wherein the pressure is regulated by the pump of the thermal contrast therapy system.

6. The therapeutic knee brace system of claim 4, wherein the pump causes constant pressure within the thermal exchange bladder, wherein the constant pressure produces steady compression on the knee joint of the therapy recipient.

7. The therapeutic knee brace system of claim 4, wherein the pump causes dynamic pressure within the thermal exchange bladder, wherein the dynamic pressure produces pulsating compression on the knee joint of the therapy recipient.

8. The therapeutic knee brace system of claim 1, wherein the knee brace coupler is configured to enable the CPM device to be capable of functioning, including being configured to enable manipulating the therapeutic knee brace system when the therapeutic knee brace system is coupled to the CPM device.