# US 10,869,770 B2 · Bone graft delivery revolver

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 10,869,770 B2
- Document ID: US10869770B2
- Status: Granted
- Kind: B2
- Application number: 16/212,136
- Filed: 2018-12-06
- Published: 2019-06-13
- Granted: 2020-12-22
- Earliest claimed: 2017-12-11
- Assignees: Stryker European Holdings I, LLC
- Applicants: Stryker European Operations Holdings LLC
- Inventors: David Arazawa; Brian Sechrist; Oliver Buchert; Amir Ali Sharifi-Mehr
- Web page: https://patentgrep.com/patent/US10869770B2

## CPC

- A61F 2/4601: {for introducing bone substitute, for implanting bone graft implants or for compacting them in the bone cavity}
- A61B 17/8802: {Equipment for handling bone cement or other fluid fillers}
- A61B 17/8805: {for introducing fluid filler into bone or extracting it (A61B17/7097, A61B17/8833 take precedence)}
- A61B 17/8833: {Osteosynthesis tools specially adapted for handling bone cement or fluid fillers; Means for supplying bone cement or fluid fillers to introducing tools, e.g. cartridge handling means}
- A61F 2/4644: {Preparation of bone graft, bone plugs or bone dowels, e.g. grinding or milling bone material (bone material A61F2/28; disintegrating or milling devices B02C)}
- 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)
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

A device for loading bone graft material into a delivery tube is provided herein. The device includes a housing defining a reservoir for receiving bone graft, a magazine at least partially disposed within the housing, and an actuation member coupled to the housing for discharging the bone graft material into the delivery tube. The magazine defines a first chamber and a second chamber and is moveable between a first position in which the first chamber is in communication with the reservoir and a second position in which the second chamber is in communication with the reservoir. The actuation member includes a plunger configured to slide into the first chamber and the second chamber to discharge bone graft material, when bone graft material is contained therein, into the delivery tube. Methods of loading bone graft material are also provided.

## Claims

### Claim 1

A device for loading bone graft material into a delivery tube comprising:
a housing defining a reservoir for receiving and temporarily storing bone graft material;
a magazine at least partially disposed within the housing, the magazine defining a first chamber and a second chamber and being rotatable relative to the reservoir between a first position in which the first chamber is in communication with the reservoir to dispense bone graft material from the reservoir into the first chamber and a second position in which the second chamber is in communication with the reservoir to dispense bone graft material from the reservoir into the second chamber; and
an actuation member coupled to the housing and having a plunger configured to slide into the first chamber and the second chamber for discharging bone graft material from the first and second chambers into a delivery tube.

### Claim 2 (depends on 1)

The device of claim 1, wherein the magazine is rotatable relative to the housing about a longitudinal axis of the magazine.

### Claim 3 (depends on 1)

The device of claim 1, wherein the actuation member comprises a plurality of y-shaped tracks.

### Claim 4 (depends on 3)

The device of claim 3, wherein the magazine comprises a pin configured to cooperate with the plurality of y-shaped tracks for rotating the magazine relative to the housing.

### Claim 5 (depends on 1)

The device of claim 1, further comprising a biasing member coupling the housing and the actuation member.

### Claim 6 (depends on 1)

The device of claim 1, further comprising a delivery tube removably connectable to the housing and configured to be connected to a separate bone graft injector.

### Claim 7 (depends on 1)

The device of claim 1, wherein the actuation member comprises a push button.

### Claim 8 (depends on 1)

The device of claim 1, wherein actuation of the actuation member moves the magazine from the first position to the second position.

### Claim 9 (depends on 2)

The device of claim 2, wherein the magazine defines at least three chambers and each of the at least three chambers are in communication with the reservoir at least once during a full revolution of the magazine.

### Claim 10 (depends on 9)

The device of claim 9, wherein each of the at least three chambers are configured to receive bone graft material when bone graft material is contained within the reservoir and each of the at least three chambers are in communication with the reservoir.

### Claim 11 (depends on 10)

The device of claim 10, wherein actuation of the actuation member rotates the magazine from the first position to the second position and wherein at least two chambers of the at least three chambers are brought into communication with the reservoir as the magazine is rotated from the first position and the second position.

### Claim 12 (depends on 11)

The device of claim 11, wherein the magazine comprises “n” number of chambers and wherein the plunger discharges each of the chambers one time during “n” number of actuations, and wherein “n” is equal to or greater than 3.

### Claim 13 (depends on 1)

The device of claim 1, wherein the housing further comprises a chimney for funneling the bone graft material contained in the reservoir to a bottom of the reservoir.

### Claim 14 (depends on 1)

The device of claim 1, wherein the housing further comprises a ratcheting gear.

### Claim 15

A device for loading bone graft material comprising:
a housing defining a reservoir for receiving and temporarily storing bone graft material therein; and
a magazine at least partially disposed within the housing, the magazine defining a first chamber and a second chamber, the magazine being rotatable about a longitudinal axis of the magazine and relative to the reservoir between a first position in which the first chamber is in communication with the reservoir and the second chamber is isolated from the reservoir and a second position in which the second chamber is in communication with the reservoir and the first chamber is isolated from the reservoir,
wherein bone graft material is configured to be dispensed from the reservoir and loaded into the first chamber and the second chamber when each of the first chamber and the second chamber are in communication with the reservoir.

### Claim 16 (depends on 15)

The device of claim 15, further comprising an actuation member and wherein actuation of the actuation member rotates the magazine from the first position to the second position.

### Claim 17 (depends on 16)

The device of claim 16, wherein the actuation member comprises a plunger and wherein the plunger slides into at least one of the first chamber and the second chamber upon actuation of the actuation member for discharging bone graft material contained therein.

### Claim 18

A method for loading bone graft material into a delivery tube comprising:
loading bone graft material into a reservoir defined in a housing;
rotating a magazine at least partially disposed within the housing and defining a first chamber and a second chamber about a longitudinal axis of the magazine relative to the reservoir between a first position in which the first chamber is in communication with the reservoir to dispense bone graft material stored within the reservoir into the first chamber and a second position in which the second chamber is in communication with the reservoir to dispense bone graft material stored within the reservoir into the second chamber;
actuating an actuation member coupled to the housing to slide a plunger into at least one of the first chamber and the second chamber to discharge bone graft material into a delivery tube connected to the housing.

### Claim 19 (depends on 18)

The method of claim 18, further comprising detaching the delivery tube from the housing and attaching the delivery tube to a separate bone graft injector.

### Claim 20 (depends on 18)

The method of claim 18, wherein actuation of the actuation member rotates the magazine from the first position to the second position.