# US 2018/0021065 A1 · Clamping device for use with an anatomic external fixation device

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- Number: US 2018/0021065 A1
- Document ID: US20180021065A1
- Status: Published application
- Kind: A1
- Application number: 15/701,104
- Filed: 2017-09-11
- Published: 2018-01-25
- Earliest claimed: 2014-10-01
- Assignees: Foot Innovations, LLC
- Applicants: QuikFix, LLC
- Inventors: Roy W. Sanders; Sergio Gutierrez
- Web page: https://patentgrep.com/patent/US20180021065A1

## CPC

- A61B 17/6416: {with non-continuous, e.g. hinged, pin-clamp connecting element (A61B17/6425, A61B17/6441 take precedence)}
- A61B 17/6425: {specially adapted to be fitted across a bone joint}
- A61B 17/6458: {with pin-clamps fixed at ends of connecting element}
- A61B 17/6466: {with pin-clamps movable along a solid connecting rod}
- A61B 17/645: {comprising a framework (A61B17/6425, A61B17/6441 take precedence)}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

A clamping device includes a clamp body and a locking assembly. The clamp body includes a first jaw defining a first opening and a second jaw defining a second opening. The locking assembly includes a first locking element, a second locking element, and a lever. The first locking element includes a first end and a shaft portion extending from the first end. The shaft portion is sized to pass through the first opening and the second opening. The locking assembly is configured to reduce a distance between the first jaw and the second jaw responsive to rotation of the second locking element. The lever is configured to attach to the second locking element and rotate about the second locking element from a first position to a second position to cause the distance between the first jaw and the second jaw to be reduced further.

## Claims

### Claim 1

A locking assembly, comprising:
a first locking component including a base, the base including a first surface and a cam receiver extending from the first surface to a cam receiver edge, the cam receiver configured to receive a cam, the cam receiver edge having a first edge point closest to the first surface, the first surface defining an opening which is not parallel to a plane passing through the cam receiver;
a second locking component including a first end, a second end, and a shaft portion extending from the first end to the second end, the second locking component configured to be coupled to the first locking component to translate through the opening along a first axis;
the cam including a cam edge and defining a center of rotation, a first radius extending from the center of rotation to a first point of the cam edge, and a second radius extending from the center of rotation to a second point of the cam edge, the second radius perpendicular to and less than the first radius,
the cam configured to be rotated along the cam receiver edge about a second axis which is not parallel to the first axis from a first position at which the center of rotation is spaced from the first edge point by the first radius to a second position at which the center of rotation is spaced from the first edge point by the second radius.

### Claim 2 (depends on 1)

The locking assembly of claim 1, wherein the second locking component includes one or more threads configured to engage corresponding thread receiving members of the first locking component to be rotated while being translated along the first axis.

### Claim 3 (depends on 1)

The locking assembly of claim 1, wherein the cam receiver edge is concave.

### Claim 4 (depends on 1)

The locking assembly of claim 1, wherein the cam includes a tab extending from the cam edge and the first locking component includes a tab receiver extending from the base, the tab receiver configured to removably secure the tab to the base when the cam is at the second position.

### Claim 5 (depends on 4)

The locking assembly of claim 4, further comprising a lock release member configured to cause the tab receiver to release the tab.

### Claim 6 (depends on 1)

The locking assembly of claim 1, wherein the cam defines a channel configured to receive a bone pin.

### Claim 7 (depends on 6)

The locking assembly of claim 6, wherein the channel is configured to contact the bone pin when the cam is at the first position.

### Claim 8 (depends on 1)

The locking assembly of claim 1, wherein rotating the cam from the first position to the second position adjusts a distance between the first end of the second locking component and the center of rotation of the cam.

### Claim 9 (depends on 1)

The locking assembly of claim 1, wherein the first axis is perpendicular to the second axis.

### Claim 10 (depends on 1)

The locking assembly of claim 1, wherein the cam includes a second cam edge spaced from and parallel to the cam edge.

### Claim 11

A surgical kit for an external fixator system, comprising:
a first locking component including a base, the base including a first surface and a cam receiver extending from the first surface to a cam receiver edge, the cam receiver configured to receive a cam, the cam receiver edge having a first edge point closest to the first surface, the first surface defining an opening which is not parallel to a plane passing through the cam receiver;
a second locking component including a first end, a second end, and a shaft portion extending from the first end to the second end, the shaft portion including at least one rotational engagement feature configured to be coupled to the first locking component to translate the second locking component through the opening along a first axis while being rotated about the first axis;
the cam including a cam edge and defining a center of rotation, a first radius extending from the center of rotation to a first point of the cam edge, and a second radius extending from the center of rotation to a second point of the cam edge, the second radius perpendicular to and less than the first radius,
the cam configured to be rotated along the cam receiver edge about a second axis which is not parallel to the first axis from a first position at which the center of rotation is spaced from the first edge point by the first radius to a second position at which the center of rotation is spaced from the first edge point by the second radius.

### Claim 12 (depends on 11)

The surgical kit of claim 11, wherein the first locking component includes one or more thread receiving members configured to engage the at least one rotational engagement feature of the second locking component.

### Claim 13 (depends on 11)

The surgical kit of claim 11, wherein the cam receiver edge is concave.

### Claim 14 (depends on 11)

The surgical kit of claim 11, wherein the cam includes a tab extending from the cam edge and the first locking component includes a tab receiver extending from the base, the tab receiver configured to removably secure the tab to the base when the cam is at the second position.

### Claim 15 (depends on 14)

The surgical kit of claim 14, further comprising a lock release member configured to cause the tab receiver to release the tab.

### Claim 16 (depends on 11)

The surgical kit of claim 11, wherein the cam defines a channel configured to receive a bone pin.

### Claim 17 (depends on 16)

The surgical kit of claim 16, wherein the channel is configured to contact the bone pin when the cam is at the first position.

### Claim 18 (depends on 11)

The surgical kit of claim 11, wherein rotating the cam from the first position to the second position adjusts a distance between the first end of the second locking component and the center of rotation of the cam.

### Claim 19 (depends on 11)

The surgical kit of claim 11, wherein the first axis is perpendicular to the second axis.

### Claim 20 (depends on 11)

The surgical kit of claim 11, wherein the cam includes a second cam edge spaced from and parallel to the cam edge.
