# US 10,117,769 B2 · Orthopedic knee brace

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- Number: US 10,117,769 B2
- Document ID: US10117769B2
- Status: Granted
- Kind: B2
- Application number: 15/252,340
- Filed: 2016-08-31
- Published: 2018-03-01
- Granted: 2018-11-06
- Earliest claimed: 2016-08-31
- Applicants: Jay C. Humphrey
- Inventors: Jay C. Humphrey
- Web page: https://patentgrep.com/patent/US10117769B2

## CPC

- A61F 5/0125: {the device articulating around a single pivot-point}
- A61F 2005/0167: {adjustable}
- A61F 2005/0197: {with spring means}
- A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C)

## Abstract

An apparatus that includes a composite fuselage and motion control system designed to protect the human leg from knee pain and muscular fatigue created by repetitive vertical movement or extended periods of squatting. Fuselage panels and frame encapsulate the leg and functionally integrate with hard shell boots to create a rigid exoskeleton structure that resists radial displacement of the knee or ankle. The fuselage ‘open clamshell’ leg harness utilizes wide composite body panels that disperse pressure across a large surface area, allowing the harness to provide body mass support and device securement without restriction of the body's circulatory system.

## Claims

### Claim 1

An orthopedic brace for the body comprising a motion control system attached to an upper and lower extremity harness divided by a pivotably mounted hinge mechanism, said orthopedic brace comprising:
a. upper extremity harness support housing;
b. a lower extremity harness support housing;
c. an adjustable hinge mechanism connecting with a central pivot, between the upper extremity harness and the lower extremity harness; and
d. said motion control system being built around the central pivot of the adjustable hinge mechanism, said motion control system connecting the upper extremity harness to the lower extremity harness,
wherein the motion control system is used as a means for (i) mitigating stress on a human knee, (ii) supporting body mass; and (iii) increasing muscular efficiency, and
wherein the motion control system comprises; a roller bearing, a control arm and a leaf spring attached to the upper extremity harness support housing, with motion control system rotating against a cam attached to lower extremity harness support housing during leg movement.

### Claim 2 (depends on 1)

The orthopedic knee brace of claim 1 wherein the cam for the motion control system is replaceable for ease of adjustment.

### Claim 3 (depends on 1)

The orthopedic knee brace of claim 1 wherein the motion control system functions as a common pivot and attachment point for the upper extremity harness support housing and the lower extremity harness support housing.

### Claim 4 (depends on 1)

The orthopedic knee brace of claim 1 wherein the motion control system can induce, delay and reverse flexion resistance by manipulating at least one of:
the cam shape, roller bearing size, and the leaf spring harness adjustment.