# US 2018/0021073 A1 · Small joint fusion plate and cutting block

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- Number: US 2018/0021073 A1
- Document ID: US20180021073A1
- Status: Published application
- Kind: A1
- Application number: 15/654,682
- Filed: 2017-07-19
- Published: 2018-01-25
- Earliest claimed: 2016-07-19
- Inventors: Sunjay Berdia
- Web page: https://patentgrep.com/patent/US20180021073A1

## CPC

- A61B 17/8061: {specially adapted for particular bones (A61B17/70 and A61B17/74 take precedence)}
- A61B 17/15: Guides therefor
- A61B 17/152: {for removing a wedge-shaped piece of bone}
- A61B 17/17: Guides {or aligning means} for drills {, mills, pins or wires}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

A method and one or more devices for a capitolunate fusion includes a cutting block for attaching to the capitate bone and for cutting the capitate and lunate bones to fit a corresponding plate. The cutting block is removed and a fusion plate is fixed to the capitate and lunate bone with the plate having a capitate section and a lunate section with the capitate section and lunate section of the plate in a generally perpendicular arrangement to allow optimal fusion of the capitate and lunate bones. Further devices include a three and four bone fusion cutting block and fusion plate.

## Claims

### Claim 1

A fixation plate kit for bone fusions in a wrist comprising:
a cutting block having at least one hole for temporarily securing the cutting block to a capitate bone and a plurality of slits for providing access to the capitate bone and at least one additional wrist bone for cutting into the capitate bone or at least one additional wrist bone,
wherein the cutting block has a first portion and a second portion;
wherein a first slit in the first portion creates a first plane on the capitate bone:
wherein a second slit in the second portion creates a second plane on at least one additional bone; and
a fixation plate comprising an elongated plate having a first end and a second end;
the first end having a first surface with at least one hole through the first end for securing the fixation plate to the capitate bone; and
the second end having a second surface extending from the first surface and forming an angle with the first surface; wherein the second surface has at least one hole through the second end for securing the second end of the fixation plate to at least one additional bone.

### Claim 2 (depends on 1)

The fixation plate kit of claim 1, wherein the fixation plate first surface is general perpendicular to the second surface.

### Claim 3 (depends on 1)

The fixation plate kit of claim 1, wherein the fixation plate is a capitolunate plate.

### Claim 4 (depends on 1)

The fixation plate kit of claim 1, wherein the fixation plate is configured for a three-bone fusion.

### Claim 5 (depends on 1)

The fixation plate kit of claim 1, wherein the fixation plate is configured for a four-bone fusion.

### Claim 6 (depends on 1)

The fixation plate kit of claim 1, wherein the cutting block has a curved extension protruding from a lower surface of one end of the block, wherein the curved extension is configured to receive the capitate bone.