IP Library › Granted Patent US 8,734,485
Granted Patent B2
US 8,734,485 · App. 12/849,991 · Granted May 27, 2014

Sutures with barbs that overlap and cover projections

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Quick Facts
Patent No.
US 8,734,485
App. No.
12/849,991
Granted
May 27, 2014
Kind
B2
Abstract

A barbed suture with a first end and a second end and a body with a plurality of barbs extending from the body. Each barb causes the suture to resist movement in an opposite direction from which the barb faces. Projections extend from said suture. The projections can also engage tissue. The barbs cover the projections when the first end of the suture is moved in tissue and exposes the projections in order to engage tissue when the suture is moved in the direction of the second end through tissue.

Claims (53)

1. A suture comprising:

an elongated body having a first end and a second end;

a plurality of barbs projecting from said body, each barb facing a direction and being adapted to resist movement in tissue in a direction opposite to the direction that the barb faces;

each of said barbs including an underside that is adjacent to the elongated body and a topside that is opposite to the underside;

each of said underside of barbs including a plurality of projections that are adapted to engage tissue; each of said topside of barbs including a smooth surface devoid of projections; and

wherein said barbs shield the projections from engagement in tissue when said barbs are disposed against said body of said suture.

2. The suture of claim 1 wherein:

said barbs shield the projections from engagement in tissue when the suture moves in tissue in the direction that the barbs are facing and allow the projections to engage tissue in the opposite direction.

3. The suture of claim 1 wherein:

the barbs include an arcuate base.

4. The suture of claim 1 wherein:

said barbs are arcuate in shape.

5. The suture of claim 1 wherein:

said projections are one of serrated projections and corrugated projections.

6. The suture of claim 1 wherein:

said barbs extend in a direction of the second end; and

said projections extend in a direction other than the direction of the barbs.

7. The suture of claim 1 wherein:

the barbs are sized so that the barbs shield the projections when the suture moves through tissue in the direction that the barbs face.

8. The suture of claim 1 wherein:

said barbs are larger than said projections.

9. The suture of claim 1 wherein:

said barbs and said projections are formed by cutting into said suture body.

10. The suture of claim 1 wherein:

said barbs overlap said projections.

11. A suture comprising:

an elongated body having a first end and a second end;

a plurality of barbs projecting from said body, each barb facing in a direction of motion of the first end of the suture through tissue and being adapted to resist movement in tissue in a direction of motion of the second end of the suture through tissue, said barbs having tissue engaging ends that are directed toward the second end; each barb includes an underside that is adjacent to the elongated body and a topside that is opposite to the underside

said underside of each barb comprises

a plurality of projections, which projections point in a direction other than the direction that said barb ends are directed;

said projections are adapted to engage tissue; and said topside of each barb comprises a smooth surface devoid of projections;

wherein sid barbs shield the projections from engagement in tissue when said barbs are disposed against said body of said suture.

12. The suture of claim 11 wherein:

said barbs shield the projections from engagement in tissue when the suture moves in tissue in the direction that the barbs are facing and allow the projections to engage tissue in the opposite directions.

13. The suture of claim 11 wherein:

the barbs include an arcuate base.

14. The suture of claim 11 wherein:

said barbs are arcuate in shape.

15. The suture of claim 11 wherein:

said projections are one of serrated projections and corrugated projections.

16. The suture of claim 11 wherein:

the barbs are sized so that the barbs shield the projections when the suture moves through tissue in the directions that the barbs face.

17. The suture of claim 11 wherein:

said barbs are larger than said projections.

18. A suture comprising:

an elongated body having a first end and a second end;

a plurality of barbs projecting from said body, each barb facing a direction of motion of the first end of the suture through tissue and being adapted to resist movement in tissue in a direction of motion of the second end of the suture through tissue, said barbs having tissue engaging ends that are directed toward the second end; each barb includes an underside that is adjacent to the elongated body and a topside that is opposite to the underside

said underside of each barb comprises

a plurality of projections, which projections point in a direction other than the direction that said barb ends are directed;

said projections are adapted to engage tissue;

said topside of each barb comprises a smooth surface devoid of projections;

wherein said barbs are larger than said projections; and

wherein said barbs shield the projections from engagement in tissue when said barbs are disposed against said body of said suture.

Assignments (7)
RELEASE OF SECURITY INTEREST Recorded Apr 12, 2013
From: WELLS FARGO CAPITAL FINANCE, LLC
To: ANGIOTECH PHARMACEUTICALS, INC.; AMERICAN MEDICAL INSTRUMENTS HOLDINGS, INC.; ANGIOTECH AMERICA, INC.; ANGIOTECH BIOCOATINGS CORP.; ANGIOTECH PHARMACEUTICALS (US), INC.; B.G. SULZLE, INC.; MANAN MEDICAL PRODUCTS, INC.; MEDICAL DEVICE TECHNOLOGIES, INC.; QUILL MEDICAL, INC.; SURGICAL SPECIALTIES CORPORATION; ANGIOTECH INTERNATIONAL HOLDINGS CORP.
Reel/Frame 030211/0479 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 27, 2012
From: ANGIOTECH PHARMACEUTICALS, INC.; QUILL MEDICAL, INC.
To: ETHICON, INC.; ETHICON, LLC
Reel/Frame 029294/0443 →
PARTIAL RELEASE OF SECURITY INTERESTS - PATENTS (US) Recorded May 16, 2012
From: WELLS FARGO CAPITAL FINANCE, LLC
To: QUILL MEDICAL, INC.; ANGIOTECH PHARMACEUTICALS, INC.
Reel/Frame 028216/0499 →
PARTIAL RELEASE OF SECURITY INTERESTS - PATENTS (US) Recorded Apr 20, 2012
From: DEUTSCHE BANK NATIONAL TRUST COMPANY
To: QUILL MEDICAL, INC.; ANGIOTECH PHARMACEUTICALS, INC.
Reel/Frame 028078/0699 →
PARTIAL RELEASE OF SECURITY INTEREST - PATENTS Recorded Apr 10, 2012
From: WELLS FARGO CAPITAL FINANCE, LLC
To: QUILL MEDICAL, INC.; ANGIOTECH PHARMACEUTICALS, INC.
Reel/Frame 028022/0861 →
PATENT SECURITY AGREEMENT Recorded May 13, 2011
From: ANGIOTECH PHARMACEUTICALS, INC.; AFMEDICA, INC.; AMERICAN MEDICAL INSTRUMENTS HOLDINGS, INC.; ANGIOTECH AMERICA, INC.; ANGIOTECH BIOCOATINGS CORP.; ANGIOTECH DELAWARE, INC.; ANGIOTECH FLORIDA HOLDINGS, INC.; ANGIOTECH PHARMACEUTICALS (US), INC.; B.G. SULZLE, INC.; MANAN MEDICAL PRODUCTS, INC.; MEDICAL DEVICE TECHNOLOGIES, INC.; NEUCOLL INC.; QUILL MEDICAL, INC.; SURGICAL SPECIALTIES CORPORATION; 0741693 BRITISH COLUMBIA LTD.; ANGIOTECH INTERNATIONAL HOLDINGS, CORP.
To: WELLS FARGO CAPITAL FINANCE, LLC, AS ADMINISTRATIVE AGENT
Reel/Frame 026275/0507 →
PATENT SECURITY AGREEMENT Recorded Aug 19, 2010
From: ANGIOTECH PHARMACEUTICALS, INC.; AFMEDIA, INC.; AMERICAN MEDICAL INSTRUMENTS HOLDINGS, INC.; ANGIOTECH AMERICA, INC.; ANGIOTECH BIOCOATINGS CORP.; ANGIOTECH CAPITAL, LLC; ANGIOTECH PHARMACEUTICALS (US), INC.; B.G. SULZLE, INC.; CRIMSON CARDINAL CAPITAL, LLC; MANAN MEDICAL PRODUCTS, INC.; MEDICAL DEVICE TECHNOLOGIES, INC.; NEUCOLL, INC.; QUILL MEDICAL, INC.; SURGICAL SPECIALITIES CORPORATION; 0741693 B.C. LTD.; 3091796 NOVA SCOTIA COMPANY; ANGIOTECH INTERNATIONAL HOLDINGS, CORP.; ANGIOTECH INVESTMENT PARTNERSHIP
To: WELLS FARGO FOOTHILL, LLC, AS AGENT
Reel/Frame 024861/0219 →