Minimally-invasive device, kit, and method for harvesting bone graft

Patent metadata

Field	Value
Publication number	US-9277927-B2
Application number	US-201213984247-A
Country	US
Kind code	B2
Filing date	Feb 10, 2012
Priority date	Feb 11, 2011
Publication date	Mar 8, 2016
Grant date	Mar 8, 2016

Abstract

A minimally-invasive bone graft harvesting device, kit, and method are provided. The device includes a hollow cutting element and an extraction element. The hollow cutting element may define a longitudinal axis and includes a distal end, a proximal end adapted to be coupled to a powered or manual-operated rotary tool, and an inner lumen extending longitudinally between the distal and proximal ends. The hollow cutting element may also include one or more blades protruding from an outer surface of the cutting element. Each blade may be arranged adjacent to an opening extending between the outer surface and the inner lumen to allow cancellous bone material cut by each blade during use to pass through the opening into the inner lumen. The extraction element may be removably received within the inner lumen of the hollow cutting element to allow withdrawal of the bone material in the inner lumen.

First claim

We claim:

1. A minimally-invasive bone graft harvesting device, comprising:
a hollow cutting element defining a longitudinal axis and including:
a distal end;
a proximal end adapted to be coupled to a powered or manual-operated rotary tool;
an inner lumen extending longitudinally between the distal and proximal ends; and
one or more blades protruding from an outer surface of the cutting element, wherein each blade is arranged adjacent to an opening extending between the outer surface and the inner lumen to allow cancellous bone material cut by each blade to pass through the opening into the inner lumen;

an extraction element within the inner lumen of the hollow cutting element to allow withdrawal of the bone material in the inner lumen;
a bone material collection canister, wherein the cutting element extends through the canister; and
a deflection element arranged within the canister and adjacent to a hole in the outer surface of the cutting element to remove cut bone material from within the inner lumen when the extraction element is moved proximally.

2. The minimally-invasive bone graft harvesting device according to claim 1 , wherein the cutting element includes a cutting tip disposed at the distal end.

3. The minimally-invasive bone graft harvesting device according to claim 2 , wherein the extraction element is movable through an opening at the proximal end of the cutting element.

4. The minimally-invasive bone graft harvesting device according to claim 3 , wherein the extraction element includes a distal disk and a proximal handle spaced from one another and coupled together by at least one elongated rod extending parallel to the longitudinal axis.

5. The minimally-invasive bone graft harvesting device according to claim 4 , wherein the at least one elongated rod comprises one or more legs arranged to define an open area to receive the cut bone material passed into the inner lumen.

6. The minimally-invasive bone graft harvesting device according to claim 4 ,
wherein the cutting element includes a hole in the outer surface along a portion enclosed within the canister, whereby when the extraction element is moved longitudinally toward the proximal end of the cutting element, bone material disposed within the inner lumen is moved proximally by the distal disk and deposited in the collection canister through the hole in the outer surface of the cutting element.

7. The minimally-invasive bone graft harvesting device according to claim 1 , wherein the cutting element and the extraction element include a continuous through hole along the longitudinal axis to receive a guide wire.

8. A minimally-invasive bone graft harvesting device, comprising:
a hollow cutting element defining a longitudinal axis and including:
a distal end having a cutting tip;
a proximal end coupled to a powered or manual-operated rotary tool;
an inner lumen extending longitudinally between the distal and proximal ends; and
at least one opening extending between an outer surface of the cutting element and the inner lumen to allow cancellous bone material to pass through the opening into the inner lumen;

an extraction element movably received within the inner lumen of the hollow cutting element to allow withdrawal of the bone material in the inner lumen, wherein the extraction element extends through an opening at the proximal end of the cutting element;
a bone material collection canister, wherein the cutting element extends through the canister and includes a hole in the outer surface along a portion enclosed within the canister, whereby when the extraction element is moved longitudinally toward the proximal end of the cutting element, bone material disposed within the inner lumen is moved proximally by a distal disk and deposited in the bone material collection canister through the hole in the outer surface of the cutting element; and
a deflection element arranged within the canister and adjacent to the hole in the outer surface of the cutting element to remove cut bone material from within the inner lumen when the extraction element is moved proximally.

9. The minimally-invasive bone graft harvesting device according to claim 8 , wherein the extraction element includes a distal disk and a proximal handle spaced from one another and coupled together by at least one elongated rod extending parallel to the longitudinal axis.

Assignees

• Khanna Akhil Jay
• Truskey Peter Hwa-Ming
• Budyansky Maxim
• Dekel Shoval
• Gottfried Haim
• Shah Neil
• Kebaish Khaled M
• Riley Iii Lee Hunter
• Univ Johns Hopkins

Inventors

• Khanna Akhil Jay
• Truskey Peter Hwa-Ming
• Budyansky Maxim
• Dekel Shoval
• Gottfried Haim
• Shah Neil
• Kebaish Khaled M
• Riley Iii Lee Hunter

Classifications

• A61B17/1635 Primary

  for grafts, harvesting or transplants · CPC title