# US 2016/0256205 A1 · Quadruped Stifle Stabilization System

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- Number: US 2016/0256205 A1
- Document ID: US20160256205A1
- Status: Published application
- Kind: A1
- Application number: 15/156,839
- Filed: 2016-05-17
- Published: 2016-09-08
- Earliest claimed: 2013-03-11
- Assignees: Embark Enterprises, Inc.
- Applicants: Embark Enterprises Inc.
- Inventors: Neil Embleton; Veronica Barkowski
- Web page: https://patentgrep.com/patent/US20160256205A1

## CPC

- A61B 17/8061: {specially adapted for particular bones (A61B17/70 and A61B17/74 take precedence)}
- A61B 17/56: Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B 17/8023: {Variable length plates adjustable in both directions}
- A61D 1/00: Surgical instruments for veterinary use
- A61F 2/3854: {with ball and socket joint}
- A61F 2/3859: {Femoral components}
- A61F 2/3886: {for stabilising knees against anterior or lateral dislocations}
- A61F 2/389: {Tibial components (A61F2/3868 takes precedence)}
- A61B 2017/567: {Joint mechanisms or joint supports in addition to the natural joints and outside the joint gaps}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- A61D: VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
- 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

A stifle stabilization system is provided herein. The system comprising a femoral component having a leg portion and bottom portion, the bottom portion including an interconnected coupling member protruding therefrom, an articular sliding insert component having a channel corresponding in size and shape to at least part of the coupling member, an enlarged opening in a bottom surface of the insert component in communication with the channel, and a slot through the bottom surface of the insert component in communication with the enlarged opening and the channel, the channel receiving the at least part of the coupling member through the enlarged opening, and a tibial component having a first proximal planar portion defining a slot, the slot being of corresponding and complementary shape to the articular sliding insert component to receive the articular sliding insert component therein.

## Claims

### Claim 1

A stifle stabilization system, comprising:
a femoral component having a leg portion and bottom portion, the bottom portion including an interconnected coupling member protruding therefrom;
an articular sliding insert component having a channel corresponding in size and shape to at least part of the coupling member, an enlarged opening in a bottom surface of the insert component in communication with the channel, and a slot through the bottom surface of the insert component in communication with the enlarged opening and the channel, the channel receiving the at least part of the coupling member through the enlarged opening; and
a tibial component having a first proximal planar portion defining a slot, the slot being of corresponding and complementary shape to the articular sliding insert component to receive the articular sliding insert component therein.

### Claim 2 (depends on 1)

The system of claim 1, wherein the system, when surgically implanted, stabilizes an unstable quadruped stifle joint during movement.

### Claim 3 (depends on 1)

The system of claim 1, wherein the leg portion of the femoral component includes attachment holes for attachment to a femur.

### Claim 4 (depends on 1)

The system of claim 1, wherein the femoral component conforms and is permanently attached to a contour of a medial third of a distal femur.

### Claim 5 (depends on 1)

The system of claim 1, wherein the femoral component conforms and is temporarily attached to a contour of a medial third of a distal femur.

### Claim 6 (depends on 1)

The system of claim 1, wherein the leg portion and bottom portion form a plane angle with respect to one another.

### Claim 7 (depends on 1)

The system of claim 1, wherein the leg portion and bottom portion form a dihedral angle with respect to one another.

### Claim 8 (depends on 1)

The system of claim 1, wherein the leg portion and bottom portion form plane angles with respect to an intermediate portion therebetween.

### Claim 9 (depends on 1)

The system of claim 1, wherein the leg portion and bottom portion form dihedral angles with respect to an intermediate portion therebetween.

### Claim 10 (depends on 1)

The system of claim 1, wherein the leg portion comprises a first leg portion and a second leg portion, the first and second leg portions form dihedral angles with respect to one another, and wherein the first leg portion is twisted along an axis thereof.

### Claim 11 (depends on 10)

The system of claim 10, wherein the coupling member is pressure fit into the aperture.

### Claim 12 (depends on 1)

The system of claim 1, wherein the slot further defines a recess corresponding in size and shape to the at least part of the coupling member of the femoral component.

### Claim 13 (depends on 1)

The system of claim 1, wherein the coupling member comprises a ball and stem.

### Claim 14 (depends on 13)

The system of claim 13, wherein the stem extends through the slot and the ball is retained within the channel.

### Claim 15 (depends on 1)

The system of claim 1, wherein the tibial component conforms and is attached to contours of a proximal medial tibia.

### Claim 16 (depends on 1)

The system of claim 1, wherein the tibial component has a first proximal planar portion and a third distal planar portion that form dihedral angles with respect to a second central planar portion therebetween.

### Claim 17 (depends on 15)

The system of claim 15, wherein the first proximal planar portion is angled with respect to the second proximal planar portion, and the second and third proximal planar portions are aligned.

### Claim 18 (depends on 15)

The system of claim 15, wherein the third distal planar portion of the tibial component contains attachment holes for attachment to a tibia.

### Claim 19 (depends on 1)

The system of claim 1, wherein the articular sliding insert component further comprises a lower angled flange extensions protruding outwardly from the lower portion of sidewalls, and an upper shoulder extensions, wherein when the tibial component is inserted into the slot of the tibial component, the tibial component is secured between the flange extensions and shoulder extensions of the articular sliding insert component.

### Claim 20

A stifle stabilization system, comprising:
a femoral component having one or more attachment holes and a coupling member extending therefrom;
an articular sliding insert component defining a channel corresponding in size and shape to at least part of the coupling member, the sliding component having a bottom opening along the channel of the articular sliding component and including an enlarged opening through the bottom at an end of the bottom opening along the channel, the enlarged opening sized to receive at least a portion of the coupling member therethrough; and
a tibial component having one or more attachment holes and defining a slot, the slot being of corresponding and complementary shape to the articular sliding insert component to receive the articular sliding insert component therein.

### Claim 21 (depends on 20)

The system of claim 20, wherein the femoral component conforms to contours of a femur.

### Claim 22 (depends on 20)

The system of claim 20, wherein the tibial component conforms to contours of a tibia.

### Claim 23 (depends on 20)

The system of claim 20, wherein the leg portion comprises a first leg portion and a second leg portion, the first and second portion form dihedral angles with respect to one another, and wherein the first leg portion is twisted along an axis thereof.
