Stricture retractor

• US 7,651,529 B2
• Filed: 05/09/2003
• Issued: 01/26/2010
• Est. Priority Date: 05/09/2003
• Status: Expired due to Fees

• Current Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Inventors: Gellman, Barry N., Slanda, Jozef
• Primary Examiner(s): Nguyen; Anhtuan T
• Assistant Examiner(s): Nguyen; Tuan V
• Application Number:
  US10/434,756
• Publication Number:
  US 20040225372A1
• Time in Patent Office: 2,454 Days
• Field of Search: 606/8, 606/191, 606/108, 606/109, 606/198, 623/23.07, 623/23.66, 623/23.7, 604104-109, 604/264, 604/96.01, 604/174, 604/175, 604/177, 604/179, 411/15, 411/21, 411 24- 27, 411/36, 411 75- 77
• US Class Current: 623/23.66
• CPC Class Codes: A61F 2/04 Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts A61F2/18, A61F2/20 take precedence; devices, other than stent-grafts, providing patency to, or preventing collapsing of, tubular structures of the body other than stent-grafts, e.g. stents A61F2/82; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95

Abstract

The invention includes a system and method for reducing the approximation of wound edges of a stricture that affects a cross-sectional area of a lumen in a mammal. The system includes a body defining a passageway for fluid flow. The body is positionable in the lumen. The system also includes a separating device disposed relative to the body. The separating device can adjust the cross-sectional area of the lumen to reduce approximation of the plurality of wound edges of the stricture. Moreover, the separating device facilitates fluid flow through the passageway of the body.

Claims

1. A system for reducing approximation of a plurality of wound edges of a stricture that affects a cross-sectional area of a lumen in a mammal, the system comprising:

a body defining a passageway for fluid flow and positionable in the lumen;

a separating device disposed relative to the body for adjusting the cross-sectional area of the lumen, the separating device including a first wing, a second wing, and at least one rib disposed on an inside surface of at least one of the first and second wing, the first wing being configured to rotate about a first axis in a first direction to move from a collapsed configuration to an expanded configuration, the second wing configured to rotate about a second axis in a second direction to move from a collapsed configuration to an expanded configuration, the first axis and the second axis being substantially parallel to the passageway, the first direction different from the second direction, and

an actuating mechanism in communication with the at least one rib to adjust the amount of opening of the first wing or the second wing.

2. The system of claim 1 wherein the separating device is connected to the body.

3. The system of claim 1 wherein the separating device is coupled to the body.

4. The system of claim 1 wherein the actuating mechanism further comprises a spring operatively connected to the first wing.

5. The system of claim 1 wherein the actuating mechanism further comprises at least one mechanical device, a pneumatic device, a hydraulic device, and an electronic device.

6. The system of claim 1 wherein the actuating mechanism further comprises a slide cam operatively connected to the first wing.

7. The system of claim 1 wherein the actuating mechanism further comprises a screw cam connected to the first wing to dispose the first wing in its collapsed configuration and its expanded configuration.

8. The system of claim 1 wherein the body further comprises a control ring enabling adjustment of the cross-sectional area of the lumen.

9. The system of claim 1 wherein the first wing and the second wing are formed from an “

I”

cut in the body.

10. The system of claim 1 wherein the first wing has a length when in the collapsed configuration and a length when in the expanded configuration, the length of the first wing when the first wing is in its expanded configuration is substantially the same as the length of the first wing when the first wing is in its collapsed configuration.

11. The system of claim 1 wherein the first wing is substantially solid.

12. The system of claim 1 wherein the actuating mechanism is configured to selectively retain the first wing in its collapsed configuration and in its expanded configuration.

13. The system of claim 1 wherein the first wing is disposed at a first angle with respect to the body when in its collapsed configuration and at a second angle with respect to the body when in its expanded configuration, the second angle being greater than the first angle.

14. The system of claim 1 wherein a distal end of the first wing is disposed a first distance from the body when the first wing is in its collapsed configuration and a second distance from the body when the first wing is in its expanded configuration, the second distance being greater than first distance.

15. The system of claim 1 wherein the system is configured to be inserted into a lumen of a mammal when the first wing and the second wing are in their collapsed configurations and is configured to expand the cross-section of the lumen when the first wing and the second wing are in their expanded configurations.

16. The system of claim 1 wherein the system has a first cross-sectional area when the first wing and the second wing are in their collapsed configurations and a second cross-sectional area when the first wing and the second wing are in their expanded configurations, the second cross-sectional area being greater than the first cross-sectional area.

17. The system of claim 1 wherein the first wing and the second wing are configured to rotate to reach any angle or until blocked from further movement by the lumen in the mammal.

18. The system of claim 1 wherein the first direction is opposite the second direction.

19. A system for reducing approximation of wound edges of a stricture that affects a cross-sectional area of a lumen in a mammal, the system comprising:

a first wing means and a second wing means capable of rotational deployment from a collapsed configuration to an expanded configuration for adjusting the cross-sectional area of the lumen to reduce approximation of the wound edges of the stricture, the first wing means being configured to rotate about a first axis in a first direction, the second wing means having being configured to rotate about a second axis in a second direction, the first direction being different from the second direction;

means for facilitating fluid flow through the lumen after adjusting the cross-sectional area of the lumen, said facilitating means comprising a passageway for fluid flow, wherein the axes of rotation for the first wing means and the second wing means are substantially parallel to the passageway, and

means for adjusting the amount of opening of the first wing means and the second wing means, the means for adjusting the amount of opening including at least one rib disposed on an inside surface of at least one of the first and second wing means.

20. The system of claim 19 further comprising means for varying pressure to adjust the cross-sectional area of the lumen.

21. The system of claim 19 further comprising means for varying pressure to facilitate the fluid flow through the lumen.

22. The system of claim 19 wherein the system is configured to be inserted into a lumen of a mammal when the first wing means and the second wing means are in their collapsed configurations and is configured to expand the cross-section of the lumen when the first wing and the second wing are in their expanded configurations.

23. The system of claim 19 wherein the system has a first cross-sectional area when the first wing and the second wing are in their collapsed configurations and a second cross-sectional area when the first wing means and the second wing means are in their expanded configurations, the second cross-sectional area being greater than the first cross-sectional area.

24. The system of claim 19 wherein the first direction is opposite the second direction.