# US 11,439,409 B2 · Cutting block

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- Number: US 11,439,409 B2
- Document ID: US11439409B2
- Status: Granted
- Kind: B2
- Application number: 17/018,083
- Filed: 2020-09-11
- Published: 2021-03-18
- Granted: 2022-09-13
- Earliest claimed: 2020-09-11
- Assignees: Depuy Ireland Unlimited Company
- Applicants: Depuy Ireland Unlimited Company
- Inventors: Michael Reeve; James Barnett
- Web page: https://patentgrep.com/patent/US11439409B2

## CPC

- A61B 17/157: {Cutting tibia}
- A61B 17/151: {for corrective osteotomy}
- A61B 17/155: {Cutting femur}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

The invention relates to a cutting block for use in preparing a bone during orthopaedic surgery. The cutting block comprises a bone attachment face, and a front face opposing the bone attachment face. The cutting block further comprises at least a first group of bone pin holes, each hole being configured for removable receipt of a bone pin. The first group of pin holes includes at least two bone pin holes that extend between the bone attachment face and the front face. The at least two bone pin holes extend parallel to each other in an anterior-posterior direction. The at least two bone pin holes are offset from each other in at least one of a superior-inferior direction or a medial-lateral direction. The at least two bone pin holes are interconnected.

## Claims

### Claim 1

A cutting block for use in preparing a bone during orthopaedic surgery, the cutting block comprising:
a bone attachment face, and
a front face opposing the bone attachment face,
wherein the cutting block further comprises at least a first group of bone pin holes, each hole being configured for removable receipt of a bone pin, the first group of pin holes including at least two bone pin holes that extend between the bone attachment face and the front face,
wherein the at least two bone pin holes extend parallel to each other in an anterior-posterior direction,
wherein the at least two bone pin holes are offset from each other in at least one of a superior-inferior direction or a medial-lateral direction, and
wherein the at least two bone pin holes are interconnected.

### Claim 2 (depends on 1)

The cutting block of claim 1, wherein the at least two bone pin holes overlap.

### Claim 3 (depends on 1)

The cutting block of claim 1, wherein the first group of bone pin holes further comprises at least a third bone pin hole, wherein the third bone pin hole is interconnected to the second bone pin hole.

### Claim 4 (depends on 3)

The cutting block of claim 3, wherein the third bone pin hole overlaps with the second bone pin hole.

### Claim 5 (depends on 3)

The cutting block of claim 3, wherein the third bone pin hole is located inferior of the second bone pin hole.

### Claim 6 (depends on 5)

The cutting block of claim 5, wherein the third bone pin hole is offset from the second bone pin hole in a medial-lateral direction.

### Claim 7 (depends on 6)

The cutting block of claim 6, wherein the first and third bone pin holes are aligned in the medial-lateral direction.

### Claim 8 (depends on 1)

The cutting block of claim 1 wherein the cutting block further comprises a second group of bone pin holes, wherein the second group of bone pin holes includes at least two bone pin holes extending between the bone attachment face and the front face,
wherein the at least two bone pin holes extend parallel to each other in an anterior-posterior direction,
wherein the at least two bone pin holes are offset from each other in at least one of a superior-inferior direction or a medial-lateral direction, and
wherein the at least two bone pin holes are interconnected.

### Claim 9 (depends on 1)

The cutting block of claim 1, wherein the at least two bone pin holes have a circular cross section when viewed from the anterior face of the cutting block.

### Claim 10 (depends on 1)

The cutting block of claim 1, wherein the at least two bone pin holes have a polygonal cross section when viewed from the anterior face of the cutting block.

### Claim 11 (depends on 10)

The cutting block of claim 10, wherein the at least two bone pin holes have a pentagonal cross section when viewed from the anterior face of the cutting block.

### Claim 12 (depends on 10)

The cutting block of claim 10, wherein the at least two bone pin holes have a hexagonal cross section when viewed from the anterior face of the cutting block.

### Claim 13 (depends on 1)

The cutting block of claim 1, wherein the cutting block further includes a cutting guide slot sized to receive a cutting tool to resect bone to create a surgically-prepared surface.

### Claim 14 (depends on 1)

The cutting block of claim 1, wherein the cutting block is a tibial cutting block.

### Claim 15 (depends on 14)

The cutting block of claim 14, wherein the cutting block is a revision tibial cutting block.

### Claim 16 (depends on 14)

The cutting block of claim 14, wherein the cutting block is a primary tibial cutting block.

### Claim 17 (depends on 14)

The cutting block of any preceding claim 14, wherein the cutting block is a femoral cutting block.