Method and apparatus for sealing a gastric opening

• US 8,029,522 B2
• Filed: 08/05/2005
• Issued: 10/04/2011
• Est. Priority Date: 08/05/2005
• Status: Active Grant

• Current Assignee: Ethicon Endo-Surgery, Inc. (Johnson & Johnson)
• Original Assignee: Ethicon Endo-Surgery, Inc. (Johnson & Johnson)
• Inventors: Ortiz, Mark S., Stokes, Michael J.
• Primary Examiner(s): Jackson; Gary
• Assistant Examiner(s): COLELLO, ERIN L
• Application Number:
  US11/197,516
• Publication Number:
  US 20070078302A1
• Time in Patent Office: 2,251 Days
• Field of Search: 600/184, 600/115, 604/96.01, 606/213, 606/198, 606/139, 606/153, 606/155
• US Class Current: 606/155
• CPC Class Codes: A61B 17/3421 Cannulas
• CPC Class Codes: A61B 17/3423 Access ports, e.g. toroid shape introducers for instruments or hands access sites for liquids A61M39/0247
• CPC Class Codes: A61B 17/3498 Valves therefor, e.g. flapper valves, slide valves haemostasis valves A61M39/06; check valves A61M39/24
• CPC Class Codes: A61B 2017/00986 Malecots, e.g. slotted tubes, of which the distal end is pulled to deflect side struts
• CPC Class Codes: A61B 2017/3425 for internal organs, e.g. heart ports
• CPC Class Codes: A61B 2017/3484 Anchoring means, e.g. spreading-out umbrella-like structure
• CPC Class Codes: A61B 2017/3488 Fixation to inner organ or inner body tissue
• CPC Class Codes: A61M 39/0247 Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body peritoneal dialysis catheters A61M1/285; tracheostomy devices A61M16/0465; measuring pressure within the body A61B5/03; colostomy devices A61F5/445; gastrotomy feeding tubes A61J15/0015; means for fixing a feeding tube outside of the body A61J15/0053

Abstract

An anchorable cannula adapted for positioning within an opening formed in tissue includes a cannula body having a proximal portion and distal portion. The proximal portion and the distal portion are linked by a circumferential ring positioned therebetween. The proximal portion includes a series of foldable arms extending upwardly from the circumferential ring and ending at a circumferential seal ring formed at a free end of the proximal portion. The distal portion includes a series of foldable arms extending downwardly from the circumferential ring and ending at a circumferential seal ring formed at a free end of the distal portion.

Claims

1. Anchorable cannula adapted for positioning within an opening formed in tissue, comprising:

a cannula body having a proximal portion and distal portion;

the proximal portion and the distal portion are linked by a circumferential ring positioned therebetween;

the proximal portion includes a series of foldable arms extending upwardly from the circumferential ring and ending at a ring formed at a free end of the proximal portion, wherein the ring of the proximal portion is provided with a seal and a valve;

the distal portion includes a series of foldable arms extending downwardly from the circumferential ring to a free end of the distal portion consisting essentially of a ring formed at the free end of the distal portion; and

a delivery device for delivering the cannula body to a desired location, the delivery device includes a shaft within which a distal applier finger and a proximal applier finger are positioned for movement relative thereto such that the distal applier finger and the proximal applier finger extend from within the shaft and are shaped and dimensioned for positioning within the shaft, wherein the distal applier finger is shaped and dimensioned to engage the ring at the free end of the distal portion and the proximal applier finger is shaped and dimensioned to engage the ring at the free end of the proximal portion of the anchorable cannula.

2. The anchorable cannula according to claim 1, wherein the arms of the proximal portion and the arms of the distal portion are composed of a flexible material.

3. The anchorable cannula according to claim 1, wherein the delivery device includes finger actuation buttons for actuating the proximal applier finger and distal applier finger.

4. The anchorable cannula according to claim 1, wherein the cannula body includes a substantially stent-like framework.

5. The anchorable cannula according to claim 4, wherein the cannula body is manufactured from a shape memory material which expands to a desired configuration upon deployment.

6. The anchorable cannula according to claim 5, further including a flexible membrane which extends over the surface of the stent-like framework.