Anastomosis method

• US 20090276035A1
• Filed: 07/07/2008
• Published: 11/05/2009
• Est. Priority Date: 08/11/2003
• Status: Active Grant

• Current Assignee: HDH Medical Ltd.
• Original Assignee: HDH Medical Ltd.
• Inventors: Waysbeyn, Igor, Vaysbeyn, Irina
• Granted Patent: US 8,147,501 B2
• Time in Patent Office: Days
• US Class Current: 623/1.350
• CPC Class Codes: A61B 17/2812 with a single pivotal connection A61B17/29 takes precedence
• CPC Class Codes: A61B 17/3478 Endoscopic needles, e.g. for infusion biopsy needles A61B10/0233; catheters with injection needles A61M25/0067
• CPC Class Codes: A61B 2017/1125 Forceps, specially adapted for performing or assisting anastomosis
• CPC Class Codes: A61B 2017/22069 Immobilising; Stabilising
• CPC Class Codes: A61F 2/064 with special features to facilitate anastomotic coupling anastomosis of natural blood vessels A61B17/11

Abstract

The present invention provides improved and simplified methods of vascular or hollow organ suture-less anastomosis for attachment of artificial standard vascular graft to the vessel wall in order to reduce the duration of the surgical procedure and its costs.

Claims

1. An anastomosis method for treating a vessel having an aneurysmal or occlusive disease edged by a proximal portion and a distal portion, wherein the portions are suitable for anastomosis, said method comprising:

preparing a vascular graft to a length and a diameter corresponding dimensions of the proximal and distal portions of the vessel, wherein said graft has at least one distal end and a proximal end;

connecting at least one docking head that comprises thin-walled hollow truncated cone having a passage that fits an outer diameter of the said vascular graft wherein said at least one docking head is provided with a plurality of outwardly pointing and inclined barbs to said vascular graft, wherein a first docking head is connected to said proximal end and at least one second docking head is connected to said distal end;

providing a delivery tool;

stopping flow of fluid in the vessel in at least one said portion;

performing an incision in a diseased portion of the said vessel and cleaning it;

inserting said proximal end to the proximal portion manually or by a delivery tool;

slightly pulling backwardly proximal end so as to dock said first docking head in the proximal portion;

inserting said distal end to at least on said distal portion manually or by a delivery tool;

restoring the fluid flow;

suturing the incision.

2. The method as claimed in claim 1, wherein the vascular graft is tubular.

3. The method as claimed in claim 1, wherein the vascular graft comprises at least one branch.

4. The method as claimed in claim 1, wherein said fluid is blood.

5. The method as claimed in claim 1, further comprising slightly pulling backwardly the distal end so as to dock said at least one second docking head in the distal portion.

6. The method as claimed in claim 1, wherein said delivery tool is a tubular catheter comprises a removable wire such as a mandren capable of being concealed, wherein the wire has a sharp tip and wherein the wire prevents the catheter from sliding backwardly, and an inflatable balloon at its proximal end, wherein said method further comprising:

mounting said vascular graft over said tubular catheter;

perforating the blood vessel by said sharp tip;

concealing said sharp tip;

advancing said tubular catheter to the proximal portion;

inflate said balloon so as to fix said tubular catheter in the proximal portion and stop the fluid flow in one portion;

stopping the fluid flow in at least one of said distal portion;

incision of the vessel wall over the body of the tubular catheter;

removing said wire;

guiding said proximal end of the graft to the proximal portion;

deflating said balloon and removing said tubular catheter through said vascular graft.

7. The method as claimed in claim 6, wherein said delivery tool is forceps.

8. The method as claimed in claim 6, wherein said forceps is provided with elongated and curved jaws that can be inserted within said tubular or bifurcated graft and wherein a rounded protrusion is provided at a guiding end of said elongated and curved jaws.

9. The method as claimed in claim 8 wherein said forceps are provided with jaws adapted to be positioned in a gap between said thin walled-truncated cone and said graft so as to guide said distal end or said proximal end to the vessel healthy portion.