IP Library › Granted Patent US 12,667,510
Granted Patent B2
US 12,667,510 · App. 18/083,146 · Granted Jun 30, 2026

Knee joint rehabilitation assist device and method

Inventor: William Marzolf (Minnetonka, MN)
Assignee: Kneewell, LLC
A61H1/024A61F5/042
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Quick Facts
Patent No.
US 12,667,510
App. No.
18/083,146
Filed
Dec 16, 2022
Granted
Jun 30, 2026
Kind
B2
Art Unit
3786
USPC
602/5
Abstract

A knee joint rehabilitation assist device and associated methods are shown. A knee joint rehabilitation assist device includes a rigid frame, a heel rest attached across one end of the frame to accommodate a heel of a user, and a knee contact attached at a distance spaced from the heel rest. Adjustability of various components and a ratcheting pressure control provide gradual controllable pressure to increase range of motion in a knee joint.

Claims (9)

1 . A method of rehabilitating a knee joint after surgery comprising:

placing a heel rest located at a distal end of a rigid frame under a user's heel;

placing a knee contact against the user's knee, wherein the knee contact is located between the distal end and a proximal end of the rigid frame;

looping a pressure control strap around the user's leg at a location above the knee, wherein a loop of the pressure control strap presses against a lower portion of the user's leg and is open on an upper portion of the user's leg, the pressure control strap located at the proximal end of the rigid frame;

adjusting a coarse adjustment of the pressure control strap to remove slack in the pressure control strap; and

ratcheting a ratcheting adjuster on the pressure control strap to apply incremented pressure to the lower portion of the user's leg, and to flex the knee joint.

2 . The method of claim 1 , further including adjusting a length of the rigid frame to place the proximal end of the rigid frame above the knee joint.

3 . The method of claim 2 , wherein adjusting a length of the rigid frame includes sliding one or more telescoping joints within a range of motion, and tightening the one or more telescoping joints at a selected length.

4 . The method of claim 3 , wherein tightening the one or more telescoping joints at a selected length includes threading one or more collets into a locked position.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 7, 2023
From: MARZOLF, WILLIAM
To: KNEEWELL, LLC
Reel/Frame 063261/0361 →
Continuity (1)
Related Publication 20240197514A1 · Jun 20, 2024
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