Tissue aperture securing and sealing apparatuses and related methods of use

Patent metadata

Field	Value
Publication number	US-9545258-B2
Application number	US-7891008-A
Country	US
Kind code	B2
Filing date	Apr 8, 2008
Priority date	May 17, 2007
Publication date	Jan 17, 2017
Grant date	Jan 17, 2017

Abstract

Embodiments of the invention are directed to apparatuses for securing and sealing apertures in tissue and related methods of use. An exemplary apparatus for collapsing an aperture in a wall of tissue can include a base biased to collapse into a collapsed state from an expanded state. The apparatus can also include a plurality of collapsible fingers extending from the base, wherein the collapsible fingers can be configured to collapse about tissue adjacent to and defining the aperture so as to close the aperture in the wall of tissue.

First claim

What is claimed is:

1. An assembly comprising:
an apparatus for collapsing an aperture in a wall of tissue, the apparatus including:
a base spring-biased to collapse into a collapsed state from an expanded state;
a plurality of collapsible fingers extending from the base, each finger having a connected end connected to the base and a free end opposite the connected end, wherein the free ends are closer together in the collapsed state than in the expanded state, and the connected ends are closer together in the collapsed state than in the expanded state,
wherein the collapsible fingers are configured to collapse about tissue adjacent to and defining the aperture by pivoting towards each other so as to close the aperture in the wall of tissue; and

a delivery apparatus, the delivery apparatus including:
an elongate flexible member, and
a conical distal assembly connected to the elongate flexible member,
wherein the distal assembly is configured to accommodate the apparatus, and includes at least one strand connecting the base to the distal assembly, the at least one strand being configured to assist in positioning the apparatus about the aperture to be closed.

2. The apparatus of claim 1 , wherein the base defines a gap in the expanded state, and the base is without the gap in the collapsed state.

3. The assembly of claim 1 , wherein the base defines an aperture for receiving the distal assembly therethrough.

4. The assembly of claim 1 , wherein the distal assembly includes a distal tip configured to puncture the wall of tissue and form the aperture.

5. The assembly of claim 1 , wherein the distal assembly includes a member and a stepped portion configured to accommodate the base, wherein a cross-sectional area of the stepped portion is larger than a cross-sectional area of the member immediately proximal to the stepped portion.

6. The assembly of claim 5 , wherein an outer surface of the base lies substantially flush with a surface of the distal assembly that is distal to the stepped portion.

7. The assembly of claim 1 , wherein a distal end of the elongate member includes a notch configured to accommodate the at least one strand therethrough, wherein the notch is configured to allow the at least one strand to assist in deploying the base about the distal end of the elongate member.

8. The apparatus of claim 1 , wherein at least a portion of the base is configured to overlap with another portion of the base, and wherein at least some of the plurality of collapsible fingers are configured to overlap others of the plurality of collapsible fingers.

9. The apparatus of claim 1 , wherein the base includes a proximal end, a distal end, and a longitudinal axis extending from the proximal end to the distal end, and the plurality of collapsible fingers are configured to collapse towards the longitudinal axis to press tissue between the plurality of collapsible fingers to close the aperture in the collapsed state.

10. The apparatus of claim 9 , wherein the base includes a lumen extending from the proximal end of the base to the distal end of the base, the base being inwardly biased to collapse the lumen radially from the expanded state to the collapsed state to press tissue located within the lumen to close the aperture.

11. The apparatus of claim 10 , wherein the base includes two adjacent ends that extend from the lumen to an outer surface of the base, the region between the ends defining a gap that is larger in the expanded state than in the collapsed state.

12. The apparatus of claim 11 , wherein the base is radially expandable from the collapsed state to the expanded state and the outer surface encompasses a cross-sectional area in the expanded state that is greater than a cross-sectional area encompassed by the outer surface in the collapsed state.

13. The apparatus of claim 9 , wherein each of the plurality of collapsible fingers includes a distal end coupled to the proximal end of the base.

14. The apparatus of claim 1 , wherein the free ends of the fingers terminate at blunt tips.

15. An assembly for delivering an apparatus for closing an aperture in a wall of tissue, comprising:
an elongate flexible member having a proximal portion, a distal portion, and a lumen extending between the proximal portion and the distal portion; and
a distal assembly connected to the distal portion of the elongate flexible member, wherein the distal assembly includes a distal tip having a stepped portion with a proximal-facing surface connected to a radially-outward-facing surface, each of the surfaces configured to detachably receive the apparatus, and wherein the distal tip is configured to invert during delivery of the apparatus.

16. The assembly of claim 15 , wherein the apparatus is disposed about the distal assembly.

17. The assembly of claim 15 , wherein the apparatus includes a base and a plurality of collapsible fingers extending from the base.

18. The assembly of claim 17 , wherein the apparatus is configured to move between collapsed and expanded configurations.

19. The assembly of claim 17 , wherein the base includes a proximal end, a distal end, and a longitudinal axis extending from the proximal end to the distal end, and the plurality of collapsible fingers are configured to collapse towards the longitudinal axis to press tissue between the plurality of collapsible fingers to close the aperture.

20. The assembly of claim 19 , wherein the base includes a lumen extending from the proximal end of the base to the distal end of the base, the base being inwardly biased to collapse the lumen radially from the expanded state to the collapsed state to press tissue located within the lumen to close the aperture.

21. The assembly of claim 20 , wherein the base includes two adjacent ends that extend from the lumen to an outer surface of the base, the region between the ends defining a gap that is larger in the expanded state than in the collapsed state.

22. The assembly of claim 21 , wherein the outer surface encompasses a cross-sectional area in the expanded state that is greater than a cross-sectional area encompassed by the outer surface in the collapsed state.

23. The assembly of claim 19 , wherein each of the plurality of collapsible fingers includes a distal end coupled to the proximal end of the base.

24. The assembly of claim 17 , wherein each of the plurality of collapsible fingers includes an end rigidly attached to the base.

25. The assembly of claim 15 , wherein the distal tip is configured to pierce tissue.

26. An assembly for delivering an apparatus for closing an aperture in a wall of tissue, comprising:
an elongate flexible member having a proximal portion, a distal portion, and a lumen extending between the proximal portion and the distal portion and having a distal opening;
a member having a longitudinal axis, a proximal portion, and a distal portion slidably disposed within the lumen of the elongate flexible member;
an annular apparatus having a circular base and a plurality of fingers, the base and the plurality of fingers surrounding a circumference of the distal portion of the member, each finger having a connected end connected to the base and a free end opposite the connected end, wherein the annular apparatus is retained within the lumen of the elongate flexible member in a collapsed configuration with a free end of each finger positioned farther from the distal opening than the connected

Assignees

• Smith Paul J
• Golden John
• Weitzner Barry
• Boston Scient Scimed Inc

Inventors

• Smith Paul J
• Golden John
• Weitzner Barry

Classifications

• A61B2017/00818

  Treatment of the gastro-intestinal system · CPC title

• A61B2017/0427

  having anchoring barbs or pins extending outwardly from the anchor body · CPC title

• A61B17/0469

  Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery · CPC title

• A61B2017/00668

  the implement being a tack or a staple · CPC title

• A61B17/0644

  penetrating the tissue, deformable to closed position · CPC title