Systems and method for bypassing an anastomosis site

• US 9,789,291 B2
• Filed: 10/10/2016
• Issued: 10/17/2017
• Est. Priority Date: 12/15/2010
• Status: Active Grant

• Current Assignee: Colospan Ltd.
• Original Assignee: Colospan Ltd.
• Inventors: Assaf, Boaz, Teichman, Eyal
• Primary Examiner(s): Zalukaeva, Tatyana
• Assistant Examiner(s): Zimbouski, Ariana
• Application Number:
  US15/289,216
• Publication Number:
  US 20170087343A1
• Time in Patent Office: 372 Days
• CPC Class Codes: A61B 17/1114 of the digestive tract, e.g. bowels or oesophagus
• CPC Class Codes: A61B 17/1155 Circular staplers comprising a plurality of staples
• CPC Class Codes: A61B 2017/00473 Distal part, e.g. tip or head A61B2017/00464 takes precedence
• CPC Class Codes: A61B 2017/00557 inflatable A61B2017/22051 takes precedence
• CPC Class Codes: A61B 2017/00867 shape memory effect for prostheses A61F2210/0014
• CPC Class Codes: A61B 2017/1103 Approximator
• CPC Class Codes: A61B 2017/1132 End-to-end connections
• CPC Class Codes: A61B 2017/1142 Purse-string sutures
• CPC Class Codes: A61B 2017/22054 with two balloons
• CPC Class Codes: A61B 2017/306 holding by means of suction
• 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
• CPC Class Codes: A61F 2002/045 Stomach, intestines
• CPC Class Codes: A61M 27/002 Implant devices for drainage of body fluids from one part of the body to another intraocular A61F9/00781; middle ear A61F11/202

Abstract

A system for bypassing an anastomosis site in a hollow organ is provided. The system includes a sleeve configured for spanning the anastomosis site at an internal surface of the hollow organ and a band configured for attachment to an external surface of the hollow organ and limiting migration of the sleeve beyond the anastomosis site.

Claims

1. A system for internally shielding an anastomosis site, the system comprising:

(a) an intra-luminal sheath positionable in a colon of a subject and being configured to migrate up and down the colon; and

(b) a linear strip having a first portion configured for closing into a band of a predetermined diameter capable of encircling said colon upstream of the anastomosis site without applying compressive forces to walls of the colon, said band being for stopping down migration of said intra-luminal sheath under peristalsis such that the anastomosis site is shielded by said intra-luminal sheath during defecation, wherein a second portion of said linear strip is extendible out of a body of said subject when said band is positioned around said colon.

2. The system of claim 1, wherein said band includes a wire running through said linear strip, said wire being for locking said band in a closed configuration.

3. The system of claim 2, wherein said wire is operable out of said body to lock said band in said predetermined diameter.

4. The system of claim 1, wherein a distal portion of said intra-luminal sheath is more rigid than that of a proximal portion.

5. The system of claim 4, wherein a diameter of said distal portion is larger than that of said proximal portion.

6. The system of claim 4, wherein said distal portion includes at least one toroidal balloon.

7. The system of claim 1, wherein said linear strip includes a notch along its length, said notch being for accepting a distal end of said linear strip to form said band.

8. A method of internally shielding an anastomosis site, the method comprising:

(a) positioning an intra-luminal sheath in a colon of a subject with at least a distal portion being upstream the anastomosis site; and

(b) attaching a linear strip outside said colon upstream of the anastomosis site with a portion of said linear strip residing outside a body of said subject; and

(c) closing said linear strip around said colon to form a band of a predetermined diameter such that compressive forces are not applied to walls of said colon;

thereby stopping down migration of said intra-luminal sheath under peristalsis such that the anastomosis site is shielded by said intra-luminal sheath during defecation.

9. The method of claim 8, wherein said linear strip includes a wire being for locking said band from outside said body.

10. The method of claim 8, wherein said linear strip includes a notch along its length, said notch being for accepting a distal end of said linear strip to form said band.

11. The method of claim 8, wherein a distal portion of said intra-luminal sheath is more rigid than that of a proximal portion.

12. The method of claim 11, wherein a diameter of said distal portion is larger than that of said proximal portion.

13. The method of claim 11, wherein said distal portion includes at least one toroidal balloon.