Methods and apparatus for magnet-induced compression anastomosis between adjacent organs

• US 9,492,173 B2
• Filed: 08/01/2014
• Issued: 11/15/2016
• Est. Priority Date: 01/05/2010
• Status: Active Grant

• Current Assignee: G.I. Windows, Inc.
• Original Assignee: G.I. Windows, Inc.
• Inventors: McWeeney, John, Ryou, Marvin, Cantillon-Murphy, Padraig, Lang, Jeffrey H., Thompson, Christopher
• Primary Examiner(s): ANDERSON, GREGORY A
• Application Number:
  US14/449,414
• Publication Number:
  US 20140343583A1
• Time in Patent Office: 837 Days
• US Class Current: 1/1
• CPC Class Codes: A61B 17/11 for performing anastomosis; Buttons for anastomosis
• CPC Class Codes: A61B 17/1114 of the digestive tract, e.g. bowels or oesophagus
• CPC Class Codes: A61B 2017/00818 Treatment of the gastro-intestinal system
• CPC Class Codes: A61B 2017/00876 magnetic
• CPC Class Codes: A61B 2017/1117 adapted for discharge after necrotisation, e.g. by evacuation, expulsion or excretion
• CPC Class Codes: A61B 2017/1132 End-to-end connections
• CPC Class Codes: A61B 2017/1139 Side-to-side connections, e.g. shunt or X-connections

Abstract

Methods and apparatus for creating an anastomosis or fistula between the gallbladder and an adjacent organ are disclosed. First, a parent magnet, typically a permanent magnet, is deployed in the stomach, small intestine, or another organ adjacent to the gallbladder, and a mating daughter material is deployed in the gallbladder in order to create a magnet-compression anastomosis. The gallbladder may then be ablated or otherwise functionally inactivated through the anastomosis. Another aspect of the invention relates to an all-in-one surgical kit that contains all the necessary specialized tools for a surgeon to perform the procedure.

Claims

1. An implantable device for creating an anastomosis, the device comprising:

an assembly of magnetic segments associated with one another, each of the magnetic segments having opposing poles and directly joined to an immediately adjacent magnetic segment at one of the opposing poles, the assembly configured to transition between a delivery configuration and a deployed configuration;

wherein, when in the delivery configuration, the magnetic segments are aligned end-to-end in a single-file arrangement and the assembly is substantially linear; and

wherein, when in the deployed configuration, the magnetic segments self-assemble into a geometric shape based, at least in part, on an attractive force between immediately adjacent magnetic segments.

2. The implantable device of claim 1, wherein at least one of the magnetic segments is directly joined to an immediately adjacent magnetic segment by way of a mechanical connection.

3. The implantable device of claim 1, wherein at least one of the magnetic segments is directly joined to an immediately adjacent magnetic segment by way of an attractive magnetic force.

4. The implantable device of claim 3, wherein each magnetic segment has an N pole facing a first direction and an S pole facing an opposing second direction, such that the N pole is proximate to an S pole of an immediately adjacent magnetic segment.

5. The implantable device of claim 1, wherein the geometric shape is angular, polygonal, annular, or spiral.

6. The implantable device of claim 1, wherein, when in the deployed configuration, a most-distal magnetic segment of the delivery configuration and a most-proximal magnetic segment of the delivery configuration are directly joined to one another.

7. The implantable device of claim 1, wherein, when in the delivery configuration, the assembly of magnetic segments is sized to fit within an introducing device for introduction into and implantation within a first organ.

8. The implantable device of claim 7, wherein the assembly of magnetic segments is configured to respond to a magnetic field generated by a separate associated magnetic assembly implanted within a second organ such that both magnetic assemblies are magnetically attracted to one another through a defined tissue area of the combined thickness of walls of the two organs and exert compressive forces on the defined area.

9. The implantable device of claim 8, wherein the two organs are selected from the group consisting of the gallbladder, the stomach, the small intestine, and the large intestine.

10. The implantable device of claim 7, wherein the introducing device is selected from the group consisting of an endoscope, a trocar, a cannula, a catheter, and a fine needle aspiration device.

11. An implantable device for creating an anastomosis, the device comprising:

an assembly of elongated magnetic segments associated with one another and configured to transition from a compressed delivery configuration, wherein at least two adjacent elongated magnetic segments are substantially parallel and in close proximity with one another, to an expanded deployed configuration, wherein the elongated magnetic segments are configured to self-assemble into a geometric structure based, at least in part, on a repulsive magnetic force between corresponding portions of the at least two adjacent elongated magnetic segments, such that the at least two adjacent elongated magnetic segments are substantially perpendicular to one another in the expanded deployed configuration.

12. The implantable device of claim 11, wherein the at least two adjacent elongated magnetic segments are connected with a hinge element.

13. The implantable device of claim 12, wherein ends of the at least two adjacent elongated magnetic segments proximate to the hinge exert attractive magnetic force on each other and corresponding opposing ends of the at least two adjacent elongated magnetic segments exert repulsive magnetic force on each other.

14. The implantable device of claim 13, wherein one of the at least two adjacent elongated magnetic segments comprises an N pole at one end and an S pole at the opposing end and the other of the at least two adjacent elongated magnetic segments comprises an S pole at both ends or an N pole at both ends.

15. The implantable device of claim 11, wherein the device comprises four or more elongated magnetic segments configured to self-assemble into a polygon.

16. The implantable device of claim 15, wherein the polygon is a rectangle.

17. The implantable device of claim 11, wherein, when in the compressed delivery configuration, the elongated magnetic segments are sized to fit within an introducing device for introduction into and implantation within a first organ.

18. The implantable device of claim 17, wherein the geometric structure of the elongated magnetic segments is configured to respond to a magnetic field generated by separate associated magnetic assembly implanted within a second organ such that the geometric structure of elongated magnetic segments and the separate magnetic assembly are magnetically attracted to one another through a defined tissue area of the combined thickness of walls of the two organs and exert compressive forces on the defined area.

19. The implantable device of claim 18, wherein the two organs are selected from the group consisting of the gallbladder, the stomach, the small intestine, and the large intestine.

20. The implantable device of claim 17, wherein the introducing device is selected from the group consisting of an endoscope, a trocar, a cannula, a catheter, and a fine needle aspiration device.