Implantable superelastic anastomosis device
AssigneeCardica, Inc.
InventorsStephen Yencho, Jaime Vargas
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Abstract
A one piece anastomosis device is disclosed which is formed of a superelastic or pseudoelastic material which self deforms or self deploys from an insertion configuration to a tissue holding configuration. The device in a deployed state preferably includes an inner tissue penetrating flange which penetrate and retains an everted graft vessel and an outer flange. The self deploying anastomosis device does not rely on a temperature transformation to achieve deployment.
Claims19
A one piece anastomosis device for connecting a graft vessel to a target vessel comprising:
- a device body formed of a superelastic or pseudoelastic material, the body having an insertion configuration and a tissue holding configuration in which the body has an inner flange and an outer flange, wherein at least one of the inner and outer flanges is radially constrained in the insertion configuration for insertion into the target vessel and when released self deforms to the tissue holding configuration.
A tube deployed anastomosis system for connecting a graft vessel to a target vessel comprising:
- a deployment tube;
- and
- an anastomosis device formed of a superelastic or pseudoelastic material, the device having an insertion configuration and a tissue holding configuration in which the device has an inner flange and an outer flange, wherein the inner and outer flanges are radially constrained in the deployment tube in the insertion configuration for insertion into the target vessel and when released from the deployment tube, the device self deforms to the tissue holding configuration.
A method of deploying an anastomosis system for connecting a graft vessel to a target vessel, the method comprising:
- connecting a graft vessel to a one piece device formed of a superelastic or pseudoelastic material;
- poking a portion of the one piece device through the graft vessel;
- and
- deploying the one piece device by self deformation to a tissue holding configuration in which the device has an inner flange and an outer flange and traps the target vessel tissue between the inner flange and the outer flange.
Dependencies are inferred from the claim text.