Prosthesis for repairing a hernia defect

Patent metadata

Field	Value
Publication number	US-10182899-B2
Application number	US-201615389957-A
Country	US
Kind code	B2
Filing date	Dec 23, 2016
Priority date	Dec 28, 2015
Publication date	Jan 22, 2019
Grant date	Jan 22, 2019

Abstract

A prosthesis for repairing a hernia defect includes a patch body, a hoisting frame releasably attachable to the patch body, and a tether attached to the hoisting frame with a free end extendable through the thickness of the patch body and accessible from the side of the patch body opposite to where the hoisting frame is releasably attached. The patch body and/or the hoisting frame includes a self-expanding support member. The hoisting frame includes a frame body with an outer frame component and a force translation component for directing pulling forces on the tether across the frame body. The outer frame component has a loop configuration to generally follow the patch periphery with overlapping end portions or a gap between free ends thereof. The force translation component is separable into multiple segments to facilitate withdrawal of the hoisting frame through an opening when released from the patch.

First claim

What is claimed is:

1. A prosthesis for repairing a hernia defect, the prosthesis comprising:
a patch body having a periphery, a first axis and a second axis perpendicular to the first axis, the first axis and the second axis intersecting at approximately a center of the patch body, a first portion of the patch body on one side of the first axis and a second portion of the patch body on the other side of the first axis;
a self-expanding hoisting frame releasably attachable to the patch body to assist in spreading the patch body from a reduced configuration to an expanded configuration, the self-expanding hoisting frame including an outer frame component and an inner frame component configured to translate force, the outer frame component defining an open interior and the inner frame component extending through the open interior, the inner frame component including a central portion and a plurality of arms extending from the central portion to the outer frame component; and
a tether attached to the inner frame component, a free end of the tether extendable away from the inner frame component and through the patch body when the hoisting frame is releasably attached to the patch body, a pulling force on the free end of the tether in an outward direction away from the patch body being directed by the inner frame component in the direction of the outer frame component when the patch body is in the expanded configuration; and
a self-expanding open-loop support coupled to the outer frame component to assist in expanding the hoisting frame from a reduced configuration to an expanded configuration, the support being coupled to the outer frame component to constrain movement of the support at one or more first regions of the outer frame component while allowing movement of the support member at one or more second regions of the outer frame component in response to manipulating the hoisting frame from the expanded configuration to the reduced configuration, the movement of the support being greater at the one or more second regions than at the one or more first regions,
wherein the patch body and the hoisting frame when releasably attached to the patch body are manipulable into the reduced configuration for insertion through an opening into a patient.

2. The prosthesis according to claim 1 , wherein the hoisting frame has a first axis and a second axis perpendicular to the first axis, the first and second axes intersecting at approximately a center of the hoisting frame, the one or more second regions being located along the first axis.

3. The prosthesis according to claim 2 , wherein the one or more second regions are centered on the first axis.

4. The prosthesis according to claim 1 , wherein the outer frame component includes a pocket at each of the one or more second regions to accommodate movement of the support.

5. The prosthesis according to claim 2 , wherein the one or more first regions are located along the second axis.

6. The prosthesis according to claim 5 , wherein the one or more first regions are centered on the second axis.

7. The prosthesis according to claim 5 , wherein the one or more first regions include a pair of first regions and the one or more second regions include a pair of second regions.

8. The prosthesis according to claim 7 , wherein the first regions constrain outward movement along the second axis and the second regions allow outward movement along the first axis.

9. The prosthesis according to claim 1 , wherein the plurality of arms extend from the central portion to the first regions of the outer frame component.

10. The prosthesis according to claim 1 , wherein the plurality of arms are separable from the central portion.

11. The prosthesis according to claim 10 , wherein each of the plurality of arms has a free end coupled together at the central portion.

12. The prosthesis according to claim 11 , wherein the free ends of the plurality of arms are coupled together with the tether.

13. The prosthesis according to claim 1 , wherein the outer frame component includes a first free end and a second free end, the outer frame component extending continuously about the open interior from the first free end to the second free end thereof.

14. The prosthesis according to claim 13 , wherein the outer frame component includes a first end segment terminating at the first free end and a second end segment terminating at the second free end, the first end segment and the second end segment overlapping each other to define an overlap region therebetween.

15. The prosthesis according to claim 14 , wherein the first end segment and the second end segment are releasably coupled together at the overlap region.

16. The prosthesis according to claim 15 , wherein one of the first end segment and the second end segment includes a retainer configured to cooperate with the other of the first end segment and the second end segment to couple the first and second end segments to each other.

17. The prosthesis according to claim 15 , wherein one of the first end segment and the second end segment includes a pocket to releasably receive the other of the first end segment and the second end segment to couple the first and second end segments to each other.

18. The prosthesis according to claim 14 , wherein the outer frame component completely surrounds the open interior when the first end segment and the second end segment overlap each other.

19. A method of repairing a hernia defect, the method comprising acts of:
(a) manipulating a prosthesis from an expanded configuration to a reduced configuration for delivery through an opening into a patient, the prosthesis including a patch body and a self-expanding hoisting frame releasably attached to the patch body to assist in spreading the patch body to an expanded configuration, the self-expanding hoisting frame including an outer frame component, a self-expanding open-loop support and an inner frame component, the outer frame component defining an open interior and the inner frame component extending through the open interior to direct force applied thereto in the direction of the outer frame component when the patch body is in the expanded configuration, the inner frame component including a central portion and a plurality of arms extending from the central portion to the outer frame component, the support coupled to the outer frame component to assist in expanding the hoisting frame from the reduced configuration to the expanded configuration;
(b) constraining movement of the support member at one or more first regions of the outer frame component while outward movement of the support occurs at one or more second regions of the outer frame component in response to act (a);
(c) following act (a), delivering the prosthesis through the opening into the patient in the reduced configuration;
(d) following act (c), spreading the patch body to the expanded configuration via the hoisting frame causing inward movement of the support at the one or more second regions of the outer frame component;
(e) securing the patch body in the expanded configuration about the hernia defect;
(f) following act (e), detaching the hoisting frame from the patch body; and
(g) withdrawing the hoisting frame through the opening out of the patient.

20. The method according to claim 19 , wherein the prosthesis includes a tether attached to and extending away from the inner frame component and through the patch body, the method further comprising an act of:
(h) manipulating a free end of the tether from outs

Assignees

• Bard Inc C R

Inventors

• Felix Augustus
• Abroff Aaron
• Loomis Amy
• Hamilton Jason
• Conidi John
• Rothberg Matthew

Classifications

• A61F2/0063 Primary

  Implantable repair or support meshes, e.g. hernia meshes · CPC title

• A61F2250/001

  for adjusting a diameter · CPC title

• A61F2210/0076

  multilayered, e.g. laminated structures · CPC title

• A61F2210/0004

  bioabsorbable · CPC title

• A61F2210/0014

  using shape memory or superelastic materials, e.g. nitinol · CPC title