NON-RESORBABLE IMPLANTABLE GUIDES AND METHODS OF USE

• US 20080161847A1
• Filed: 12/28/2006
• Published: 07/03/2008
• Est. Priority Date: 12/28/2006
• Status: Active Grant

• Current Assignee: Stryker Corporation
• Original Assignee: Orthovita Inc. (Stryker Corporation)
• Inventors: Sandhu, Harvinder, Murphy, James P., Bagga, Charanpreet S., Persenaire, Maarten
• Granted Patent: US 8,652,154 B2
• Time in Patent Office: Days
• US Class Current: 606/191
• CPC Class Codes: A61B 17/0218 for minimally invasive surgery A61B17/0281, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence
• CPC Class Codes: A61B 17/3423 Access ports, e.g. toroid shape introducers for instruments or hands access sites for liquids A61M39/0247
• CPC Class Codes: A61B 17/3431 being collapsible, e.g. made of thin flexible material A61B17/3423 takes precedence
• CPC Class Codes: A61B 17/3439 with means for changing the inner diameter of the cannula, e.g. expandable A61B17/3423, A61B17/3431 take precedence; catheters A61M25/0662
• CPC Class Codes: A61B 2090/3904 specially adapted for marking specified tissue
• CPC Class Codes: A61B 90/39 Markers, e.g. radio-opaque or breast lesions markers

Abstract

Devices for facilitating access to a surgical situs, as well as methods of their use, are described.

Claims

1. A nonresorbable, biocompatible, sterile surgical access device comprising:

first and second, substantially planar, leaves, each having first and second surfaces;

the first surfaces of the leaves being conjoined along at least a portion of their peripheries, such that the leaves can be separated from each other to define an access space between the first and second leaves.

2. The device of claim 1 wherein the leaves are joined by further biocompatible material to form a generally hollow structure when the leaves are separated from each other.

3. The device of claim 1 wherein the first and second leaves form a continuous structure.

4. The device of claim 1 wherein at least one leaf further comprises at least one anchoring surface.

5. The device of claim 4 wherein the anchoring surface further comprises at least one suture.

6. The device of claim 1 further comprising at least portions which are radiopaque.

7. The device of claim 1 further comprising localizing markings.

8. The device of claim 1 wherein the distal end of at least one leaf forms a base member.

9. The device of claim 1 wherein the leaves are pendant to a biocompatible base member.

10. The device of claim 9 wherein the leaves are oriented in a direction generally normal to the base member.

11. The device of claim 9 wherein the leaves extend generally upward from the base member.

12. The device of claim 9 wherein the base member further comprises at least portions which are radiopaque.

13. The device of claim 9 wherein the base member further comprises at least one anchoring surface.

14. The device of claim 13 wherein the anchoring surface further comprises at least one suture.

15. The device of claim 1 further comprising a catheter or cannula.

16. The device of claim 1 wherein the device is a contrasting color to tissue.

17. A method for facilitating access to a site where surgery is to be performed comprising:

(a) placing within the situs of the surgery at a location where subsequent surgical access may be required a device comprising first and second, substantially planar, leaves, each having first and second surfaces;

the first surfaces of the leaves being conjoined along at least a portion of their peripheries, such that the leaves can be separated from each other to define an access space between the first and second leaves; and

(b) affixing the leaves to tissue within the situs.

18. A method of accessing a site where surgery is to be performed comprising:

(a) locating a device comprising first and second, substantially planar, leaves, each having first and second surfaces;

the first surfaces of the leaves being conjoined along at least a portion of their peripheries, such that the leaves can be separated from each other to define an access space between the first and second leaves;

(b) accessing the device; and

(c) separating the leaves so as to define a space between the leaves.

19. A nonresorbable, biocompatible, sterile surgical access device comprising a base member and at least one hollow projection pendant to the base member.

20. The device of claim 19 wherein the hollow projection is oriented in a direction generally normal to the base member.

21. The device of claim 19 wherein the hollow projection is collapsible.

22. The device of claim 19 wherein the hollow projection is expandable.

23. The device of claim 19 wherein the hollow projection extends generally upward from the base member.

24. The device of claim 19 further comprising at least portions of radiopaque material.

25. The device of claim 19 further comprising localizing markings.

26. The device of claim 19 further comprising an enclosing member.

27. The device of claim 26 wherein the enclosing member further comprises at least portions which are radiopaque.

28. The device of claim 26 wherein the enclosing member further comprises at least one anchoring surface.

29. The device of claim 26 wherein the enclosing member is expandable.

30. The device of claim 19 wherein the base member further comprises at least one anchoring surface.

31. The device of claim 30 wherein the anchoring surface further comprises at least one suture.

32. The device of claim 30 wherein the anchoring surface further comprises apertures.

33. The device of claim 19 wherein the hollow projection further comprises at least one anchoring surface.

34. The device of claim 33 wherein the anchoring surface further comprises at least one suture.

35. The device of claim 19 further comprising a catheter or cannula.

36. The device of claim 19 wherein the device is a contrasting color to tissue.

37. A method for facilitating access to a secondary surgical site comprising:

(a) placing within the situs of the surgery at a location where subsequent surgical access may be required a device comprising a biocompatible base member and at least one hollow projection pendant to the base member; and

(b) affixing one or more of the base member or the hollow projection to tissue within the situs.

38. A method of accessing a site where surgery is to be performed comprising:

(a) locating a device comprising a biocompatible base member and at least one hollow projection pendant to the base member;

(b) accessing the device; and

(c) exposing the hollow projection.