Granted Patent B2

US 12,733,932 · App. 19/540,471 · Granted Sep 15, 2026

Inventor: Charam Khosrovaninejad (Pernes les Fontaines, FR)

A61B17/08A61F2/04A61F5/0013A61F5/0076A61F5/0089A61B2017/00818A61B2017/00862A61B2017/00995A61B17/1114A61B2017/308A61B2090/0815A61F2002/044A61F2002/045A61F2/064A61F2002/075A61F2/95A61F2002/9528F04C2270/041

Abstract

Claims (32)

1 . An anchoring device for protecting an anastomosis in an intestine during healing, the anchoring device comprising:

an anchor configured to be implanted in the intestine at an anchor site upstream of the anastomosis in the intestine, wherein the anchor comprises an expandable downstream region and an expandable upstream region each configured to expand to a diameter greater than that of a cylindrical region therebetween to inhibit migration of the anchor from the anchor site, wherein the anchor is configured to define a suction chamber;

a covering at the anchor configured to promote adhesion to an inner wall of the intestine at the anchor site while the anchor is implanted; and

a tube in fluid connection with the suction chamber, wherein negative pressure applied to the suction chamber via the tube creates a vacuum in the suction chamber to anchor the anchor in the intestine at the anchor site upstream of the anastomosis,

wherein the anchor is configured to remain anchored against the inner wall of the intestine at the anchor site during a period that is after post-operative restarting of a digestive process to allow for healing of the anastomosis while the anchor remains implanted in the intestine.

2 . The anchoring device of claim 1 , wherein the covering comprises a covering film having adhesive properties.

3 . The anchoring device of claim 1 , wherein the covering creates a textured outer surface on the anchor.

4 . The anchoring device of claim 3 , wherein the textured outer surface comprises micro-fibrils.

5 . The anchoring device of claim 1 , wherein the covering comprises a biocompatible synthetic material.

6 . The anchoring device of claim 5 , wherein the biocompatible synthetic material comprises an elastomer.

7 . The anchoring device of claim 6 , wherein the elastomer comprises at least one of silicone or polyurethane.

8 . The anchoring device of claim 1 , wherein the covering is configured to protect the inner wall of the intestine during implantation.

9 . The anchoring device of claim 1 , wherein the anchor comprises two stents configured to be secured together.

10 . The anchoring device of claim 1 , wherein the anchor comprises pores or mini-perforations.

11 . The anchoring device of claim 1 , wherein the anchor is configured to be implanted in the intestine for at least three days until removal.

12 . The anchoring device of claim 1 , further comprising an external suction device configured to create the vacuum in the suction chamber via the tube.

13 . The anchoring device of claim 12 , further comprising a vacuum indicator configured to indicate a degree of vacuum in the suction chamber.

14 . The anchoring device of claim 13 , wherein the external suction device is configured to, responsive to the indication of the degree of vacuum from the vacuum indicator, permit monitoring and control or modification of anchor force of the anchor against the inner wall of the intestine.

15 . The anchoring device of claim 1 , further comprising a sheath defining a lumen, wherein the sheath extends downstream from the anchor to cover and protect the anastomosis in the intestine from fecal matter flowing through the lumen.

16 . The anchoring device of claim 15 , wherein the sheath has a length to extend downstream from the anchor to outside an anal orifice.

17 . The anchoring device of claim 15 , wherein the covering has a flexibility that is greater than a flexibility of the sheath.

18 . The anchoring device of claim 1 , further comprising an additional tube for creating the vacuum in the suction chamber.

19 . The anchoring device of claim 1 , further comprising a first leaktight fastener disposed on an upstream end of the anchor and a second leaktight fastener disposed on a downstream end of the anchor.

20 . The anchoring device of claim 19 , wherein the first and second leaktight fasteners each form a leaktight sealed configuration with the inner wall of the intestine at the anchor site positioned upstream from the anastomosis.

21 . The anchoring device of claim 20 , wherein the first and second leaktight fasteners comprise first and second annular gaskets, respectively.

22 . The anchoring device of claim 1 , wherein the anchor is configured to be removed using a coloscope.

23 . The anchoring device of claim 1 , wherein the suction chamber is configured to receive gas or liquid via the tube to release the anchor from the anchor site for removal from the intestine via an anal orifice after healing of the anastomosis.

24 . The anchoring device of claim 1 , wherein the suction chamber is between the expandable downstream region and the expandable upstream region of the anchor.

25 . A delivery system comprising:

a tubular outer shell configured to hold the anchoring device of claim 1 in a retracted position; and

a pusher tube within the tubular outer shell,

wherein the anchoring device is configured to be introduced into the intestine via an anal orifice and pushed out the tubular outer shell via the pusher tube for anchoring the anchor in the intestine upstream of the anastomosis.

Priority Claims (1)

Continuity (10)

References Cited (281)