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Transluminal anastomosis method and apparatus
| Details |
Inventors: Frazier, Andrew G. C.; Lesh, Michael D.; Roue, Chad C.; van der Burg, Erik J.;
Assignee: Appriva Medical, Inc. (Sunnyvale, CA)
Primary Examiner: Mendez; Manuel
Assistant Examiner:
Attorney, Agent or Firm: Knobbe, Martens, Olson & Bear, LLP
Disclosed is an anastomosis catheter, for achieving a tissue to tissue or synthetic graft to tissue attachment. The catheter includes a plurality of deployable tissue anchors, which may be laterally deployed into surrounding tissue. The anchors may be used to achieve end to end or end to side anastomoses. Methods are also disclosed. |
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DETAILED DESCRIPTION There is provided in accordance with one aspect of the present invention, a method of attaching a tubular graft to a vessel wall.
The method comprises the steps of positioning a tubular graft within a vessel, and positioning a tissue anchor deployment catheter at a first position within the graft, the deployment catheter comprising a first plurality of tissue anchors.
The anchors are thereafter advanced into the vessel wall, to secure the graft to the vessel wall.
In one embodiment, the advancing the anchors step comprises advancing the anchors through the graft and into the vessel wall.
Preferably, the advancing the anchors step comprises advancing at least four anchors into the vessel wall.
In one embodiment, the positioning a graft step comprises positioning a tubular PTFE graft.
Preferably, the method further comprises the step of advancing a catheter to a second position within the graft, and advancing a second plurality of anchors into the vessel wall.
This may be accomplished using a second plurality of anchors, carried by the catheter.
In accordance with another aspect of the present invention, there is provided a method of attaching a first tubular structure to a second tubular structure in a patient.
The method comprises the steps of identifying a first tubular structure in the patient, and positioning a second tubular structure in communication with the first tubular structure.
An anchor deployment catheter is positioned within at least one of the first and second tubular structures.
A plurality of tissue anchors are deployed from the catheter and through at least one of the first and second tubular structures, to attach the first tubular structure to the second tubular structure.
The first tubular structure may be an artery or a vein, and the second tubular structure may be a graft.
The graft may be autologous vessel tissue, a homograft, a xenograft, or a prosthetic tubular graft.
In accordance with a further aspect of the present invention, there is provided an anastomosis catheter
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