IP Library Patent Application 13431459
Patent Application
App. No. 13/431,459

MATERIALS AND METHODS FOR IMPROVED BONE TENDON BONE TRANSPLANTATION

Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US None
App. No.
13/431,459
Abstract

Disclosed herein is an improved Bone Tendon Bone graft for use in orthopedic surgical procedures. Specifically exemplified herein is a Bone Tendon Bone graft comprising one or more bone blocks having a groove cut into the surface thereof, wherein said groove is sufficient to accommodate a fixation screw. Also disclosed is a a method of harvesting grafts that has improved efficiency and increases the quantity of extracted tissue and minimizes time required by surgeon for implantation.

Claims (29)

1 - 18 . (canceled)

19 . A allograft bone-tendon-bone graft useful in orthopedic surgery comprising a first substantially cylindrical bone block, a second substantially cylindrical bone block, and a tendon interconnecting said first substantially cylindrical bone block to said second substantially cylindrical bone block by naturally occurring tendon-to-bone attachments; wherein said first and second substantially cylindrical bone blocks each further comprise a substantially cylindrical outer surface and one or more end surfaces; and wherein said tendon runs along at least a portion of the length of the substantially cylindrical outer surface and said tendon forms at least a portion of the substantially cylindrical outer surface of at least one of said bone blocks.

20 . The allograft bone-tendon-bone graft of claim 1 , wherein said tendon is obtained from human patellar tendon.

21 . The allograft bone-tendon-bone graft of claim 1 , wherein one or both of said substantially cylindrical bone blocks have ends that are rounded.

22 . The allograft bone-tendon-bone graft of claim 1 , wherein one or both of said substantially cylindrical bone blocks have ends that are flat.

23 . The allograft bone-tendon-bone graft of claim 1 , wherein the source of the first substantially cylindrical bone block is the tibia or the patella.

24 . The allograft bone-tendon-bone graft of claim 1 , wherein said graft is processed to minimize the level of antigenic agents or potentially pathogenic agents.

25 . The allograft bone-tendon-bone graft of claim 1 , wherein one or both of said substantially cylindrical bone blocks further comprises a graft manipulation hole.

26 . The allograft bone-tendon-bone graft of claim 1 , wherein one or both of said substantially cylindrical bone block is a cylindrical dowel.

27 . The allograft bone-tendon-bone graft of claim 8 , wherein the cylindrical dowel has a diameter between 8 and 12 mm.

28 . The allograft bone-tendon-bone graft of claim 1 , wherein one or both of said substantially cylindrical bone blocks comprises a groove to position a fixation screw.

29 . The allograft bone-tendon-bone graft of claim 10 , wherein said groove is a radius cut extending the length of the bone block.

30 . The allograft bone-tendon-bone graft of claim 10 , wherein said groove has a surface with a thread profile cut therein.

31 . A allograft bone-tendon graft suitable for fixation in a bone tunnel during orthopedic surgery on a human comprising a substantially cylindrical bone block and a tendon attached to said substantially cylindrical bone block by a naturally occurring tendon-to-bone attachment, wherein the bone block comprises a substantially cylindrical outer surface, configured for filling of dead space in said bone tunnel and having a diameter between 8 and 12 mm; and wherein said tendon extends along at least a portion of the length of the substantially cylindrical outer surface and said tendon forms at least a portion of the substantially cylindrical outer surface.

32 . The allograft bone-tendon graft of claim 13 , wherein said tendon is obtained from the group consisting of human patellar tendon, human quadriceps tendon and human Achilles tendon.

33 . The allograft bone-tendon graft of claim 13 , wherein said substantially cylindrical bone block comprises a groove to position a fixation screw.

34 . The allograft bone-tendon graft of claim 15 , wherein said groove is a radius cut extending the length of the bone block.

35 . The allograft bone-tendon graft of claim 15 , wherein said groove on said substantially cylindrical bone block has a surface with a thread profile cut therein.

36 . A allograft bone-tendon graft suitable for filling dead space within a substantially cylindrical bone tunnel in a human patient, comprising a bone block and a tendon attached to the bone block by a naturally occurring tendon-to-bone attachment, wherein the bone block has a substantially cylindrical outer surface and has a diameter between 8 and 12 mm; and wherein said tendon forms at least a portion of the substantially cylindrical outer surface.

37 . The allograft bone-tendon graft of claim 18 , wherein said tendon is obtained from the group consisting of human patellar tendon, human quadriceps tendon and human Achilles tendon.

38 . The allograft bone-tendon graft of claim 18 , further comprising a groove to position a fixation screw.

39 . The allograft bone-tendon graft of claim 18 , further comprising at least one graft manipulation hole.

40 . A allograft bone-tendon graft useful in orthopedic surgery comprising one or more bone blocks and a tendon attached to at least one of said one or more bone blocks by a naturally occurring tendon-to-bone attachment wherein at least one of said bone blocks has a shape comprising a round cross section of constant radius, and wherein said constant radius is essentially the same at two or more distinct cross sections along the length of said bone block and wherein said bone block has a diameter between 8 and 12 mm; and wherein said tendon forms at least a portion of the round cross section of constant radius.

41 . The allograft bone-tendon graft of claim 22 , wherein said tendon is obtained from the group consisting of human patellar tendon, human quadriceps tendon and human Achilles tendon.

42 . The allograft bone-tendon graft of claim 22 , wherein said one or more bone blocks comprises a groove to position a fixation screw.

43 . The allograft bone-tendon graft of claim 24 , wherein said groove is a radius cut extending the length of the bone block.

44 . The allograft bone-tendon-bone graft of claim 24 , wherein said groove has a surface with a thread profile cut therein.

45 . The allograft bone-tendon graft of claim 22 , wherein said tendon has a first end and a second end, and wherein said one or more bone blocks comprises a first bone block attached to said first end and a second bone block attached to said second end.

46 . The allograft bone-tendon graft of claim 27 , wherein said first bone block is derived from a patella, said second bone block is derived from a tibia, and said tendon is derived from a patellar tendon.

Assignments (5)
RELEASE OF SECURITY INTEREST Recorded Jun 7, 2018
From: TD BANK, N.A., AS ADMINISTRATIVE AGENT
To: RTI SURGICAL, INC.
Reel/Frame 046327/0184 →
CHANGE OF NAME Recorded Aug 14, 2013
From: RTI BIOLOGICS, INC.
To: RTI SURGICAL, INC.
Reel/Frame 031012/0159 →
SECURITY AGREEMENT Recorded Jul 26, 2013
From: RTI SURGICAL, INC.
To: TD BANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 030888/0001 →
CORRECTIVE ASSIGNMENT TO CORRECT THE EXECUTION DATE OF MICHAEL ESCH PREVIOUSLY RECORDED ON REEL 028003 FRAME 0927. ASSIGNOR(S) HEREBY CONFIRMS THE EXECUTION DATE OF MICHAEL ESCH SHOULD BE CHANGED FROM "03/29/2000" TO --03/24/2000--. Recorded May 3, 2012
From: CARTER, KEVIN C.; ESCH, MICHAEL; LAROCHELLE, PAUL; GROSS, JIM
To: RTI BIOLOGICS, INC.
Reel/Frame 028154/0070 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 6, 2012
From: CARTER, KEVIN C.; ESCH, MICHAEL; LAROCHELLE, PAUL; GROSS, JIM
To: RTI BIOLOGICS, INC.
Reel/Frame 028003/0927 →