Surgical fastener

• US 20050203550A1
• Filed: 03/11/2004
• Published: 09/15/2005
• Est. Priority Date: 03/11/2004
• Status: Abandoned Application

• Current Assignee: Michael D. Laufer, Sanjay S. Bagade
• Original Assignee: Michael D. Laufer, Sanjay S. Bagade
• Inventors: Laufer, Michael D., Bagade, Sanjay S.
• Application Number:
  US10/798,465
• Publication Number:
  US 20050203550A1
• Time in Patent Office: Days
• US Class Current: 606/151
• CPC Class Codes: A61B 17/10 for applying or removing wound clamps, e.g. containing only one clamp or staple A61B17/076 takes precedence; containing multiple wound clamps A61B17/068; Wound clamp magazines containers, packaging elements or packages specially adapted for particular articles or with special means for dispensing contents B65D83/00, B65D85/00
• CPC Class Codes: A61B 2017/00004 (bio)absorbable, (bio)resorbable, resorptive for implantable prostheses A61F2210/0004
• CPC Class Codes: A61B 2017/003 Steerable
• CPC Class Codes: A61B 2017/00535 pneumatically or hydraulically operated A61B2017/22051, A61B2090/401 take precedence
• CPC Class Codes: A61B 2017/00858 high friction, non-slip on handles A61B2017/00429
• CPC Class Codes: A61B 2017/00898 expandable upon contact with fluid
• CPC Class Codes: A61B 2017/0409 Instruments for applying suture anchors for applying suture clamps, clips or locks A61B2017/0488
• CPC Class Codes: A61B 2017/0417 T-fasteners
• CPC Class Codes: A61B 2017/0419 H-fasteners
• CPC Class Codes: A61B 2017/0443 the shaft being resilient and having a coiled or helical shape in the released state
• CPC Class Codes: A61B 2090/037 with a frangible part, e.g. by reduced diameter

Abstract

Devices and systems related to surgical fasteners and more specifically to surgical fasteners suitable for use in both open procedures, and minimally or less invasive procedures where the operative site is remote from the surgeon.

Claims

1. A surgical fastener for deployment through a device, the fastener comprising:

a first anchor member;

a second anchor member;

a connecting portion separating the first and second anchor members; and

where at least the first anchor member and the second anchor member each are expandable from a first state to a second state where the second state is of a larger size than the first state.

2. The surgical fastener of claim 1, where the second state is of a larger volume than the first state.

3. The surgical fastener of claim 1, where the first anchor member and second anchor member assume the first state upon application of a vacuum to the anchor members.

4. The surgical fastener of claim 1, where the first anchor member and second anchor member are compressible upon application of a compressive force and assume the second state upon removal of the compressive force.

5. The surgical fastener of claim 4, where the first anchor member and second anchor members are sized relative to the device so that the device provides the compressive force upon insertion of the anchor members into the device.

6. The surgical fastener of claim 1, where connecting portion is also expandable from the first state to the second state where the second state is of a larger volume than the first state.

7. The surgical fastener of claim 1, where at least the first and second anchor members comprise a material that expands upon contact with a fluid.

8. The surgical fastener of claim 1, where at least a portion of the anchors or the connecting member members contain a hollow portion.

9. The surgical fastener of claim 1, where the connecting portion has a greater elasticity than either the first or second anchor member such that when tissue is placed between the anchor members, the connecting member is placed in a tensile state providing a compressive force against the tissue by the anchor members.

10. The surgical fastener of claim 1, where the connecting portion has a cross sectional area less than a cross sectional area of either the first or second anchor member.

11. The surgical fastener of claim 1, where the connecting portion has a lower modulus of elasticity than a modulus of elasticity of either the first or second anchor.

12. The surgical fastener of claim 1, where the connecting portion is formed from a polymer or co-polymer that is different from the remainder of the fastener.

13. The surgical fastener of claim 1, where the connecting portion and anchors are formed from a polymer or co-polymer.

14. The surgical fastener of claim 1, further comprising a bioactive substance.

15. The surgical fastener of claim 14, where the bioactive substance comprises non-proliferative drugs, thrombogenic additives, non-thrombogenic additives, non-inflammatory medicines, additives to induce fibrosis for wound closure, anti-platelet, anti-coagulent, growth factors, gene-transductors, cell matrix, glue, cement, protein, hydrophilic, hydrophobic, lipidphillic, lipidphobic, or combinations where appropriate.

16. The surgical fastener of claim 1, where the fastener is bioabsorbable.

17. The surgical fastener of claim 1, where the fastener comprises a shape selected from a group consisting of an I-type fastener, an H-type fastener, a pig-tail fastener, a helical fastener.

18. The surgical fastener of claim 1, where the fastener comprises a plurality of pores adapted to facilitate tissue ingrowth.

19. The surgical fastener of claim 1, where at least the first and second anchor member comprises a material selected from the group consisting of poly (ethylene-vinyl acetate), poly (D,L-lactic acid) oligomers and polymers, poly (L-lactic acid) oligomers and polymers, poly (glycolic acid), copolymers of lactic acid and glycolic acid, poly (caprolactone), poly (valerolactone), polyanhydrides, copolymers of poly (caprolactone) or poly (lactic acid) with polyethylene glycol, PET, PETE, and blends thereof

20. The surgical fastener of claim 1, where the first anchor member comprises a shape selected from the group consisting of a bar, disc, sphere, cylinder, a helical and a pig-tail shape

21. The surgical fastener of claim 20, where the second anchor member comprises a shape selected from the group consisting of a bar, disc, sphere, a helical and cylinder.

22. The surgical fastener of claim 1, further comprising an insert within a fastener material forming the fastener.

23. The surgical fastener of claim 22, where the insert comprises a material different from the fastener material.

24. The surgical fastener of claim 22, where the insert comprises a non-biodegradeable material.

25. The surgical fastener of claim 22, where the insert comprises a metallic material.

26. The surgical fastener of claim 22, where the insert material degrades slower than the fastener material.

27. The surgical fastener of claim 22, where the insert material is radiopaque.

28. A surgical fastener for deployment through a device, the fastener comprising:

a first means for anchoring the fastener;

a second means for anchoring the fastener and;

a connecting portion separating the first and second means for anchoring.

29. The surgical fastener of claim 28, where at least the first and second means for anchoring comprise a material that expands upon contact with a fluid.

30. The surgical fastener of claim 28, where the connecting portion has a greater elasticity than either the first or second means for anchoring such that when tissue is placed between the means for anchoring, the connecting member is placed in a tensile state providing a compressive force against the tissue by the means for anchoring.

31. The surgical fastener of claim 28, where the connecting portion is formed from a polymer or co-polymer that is different from the remainder of the fastener.

32. The surgical fastener of claim 28, further comprising a bioactive substance.

33. The surgical fastener of claim 28, where the bioactive substance comprises non-proliferative drugs, thrombogenic additives, non-thrombogenic additives, non-inflammatory medicines, additives to induce fibrosis for wound closure, anti-platelet, anti-coagulent, growth factors, gene-transductors, cell matrix, glue, cement, protein, hydrophilic, hydrophobic, lipidphillic, lipidphobic, or combinations where appropriate.

34. The surgical fastener of claim 28, where at least the first and second means for anchoring comprises a material selected from the group consisting of poly (ethylene-vinyl acetate), poly (D,L-lactic acid) oligomers and polymers, poly (L-lactic acid) oligomers and polymers, poly (glycolic acid), copolymers of lactic acid and glycolic acid, poly (caprolactone), poly (valerolactone), polyanhydrides, copolymers of poly (caprolactone) or poly (lactic acid) with polyethylene glycol, PET, PETE, and blends thereof

35. The surgical fastener of claim 28, where the first and second means for anchoring comprises a shape selected from the group consisting of a bar, disc, sphere, cylinder, a helical and a pig-tail shape