Trocar for use in deploying an anastomosis device and method of performing anastomosis
First Claim
Patent Images
1. A device for forming an incision in a wall of a target vessel and delivering an anastomosis device for connecting an end of a graft vessel to a target vessel at the site of the incision, the device comprising:
- a member having a piercing element at a distal end thereof and the member being adapted to cooperate with a deployment tool such that the anastomosis device can be delivered to the incision site by the development tool and the piercing element can be withdrawn from the incision site prior to deployment of the anastomosis device, wherein the piercing element includes a cutting blade which is movable with respect to the member such that the cutting blade can be moved from a cutting position at which the cutting blade is exposed with respect to the member to a retracted position at which the cutting blade is not exposed with respect to the member.
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Accused Products
Abstract
A trocar useful for forming an incision in a target vessel for placement of an anastomosis device which may have an inner flange formed by radial expansion of the device and an outer flange formed by axial compression of the device. The trocar can have a smaller size during formation of the incision and a larger size when retracted over a deployment tool used to deploy the anastomosis device.
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Citations
29 Claims
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1. A device for forming an incision in a wall of a target vessel and delivering an anastomosis device for connecting an end of a graft vessel to a target vessel at the site of the incision, the device comprising:
a member having a piercing element at a distal end thereof and the member being adapted to cooperate with a deployment tool such that the anastomosis device can be delivered to the incision site by the development tool and the piercing element can be withdrawn from the incision site prior to deployment of the anastomosis device, wherein the piercing element includes a cutting blade which is movable with respect to the member such that the cutting blade can be moved from a cutting position at which the cutting blade is exposed with respect to the member to a retracted position at which the cutting blade is not exposed with respect to the member. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A device for forming an incision in a wall of a target vessel and delivering an anastomosis device for connecting an end of a graft vessel to a target vessel at the site of the incision, the device comprising:
a member having a piercing element at a distal end thereof and the member being adapted to cooperate with a deployment tool such that the anastomosis device can be delivered to the incision site by the deployment tool and the piercing element can be withdrawn from the incision site prior to deployment of the anastomosis device, wherein the member comprises a tubular member having a passage therein through which the anastomosis device is delivered to the incision site, and wherein the tubular member further includes a deformable tubular wall. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A device for forming an incision in a wall of a target vessel and delivering an anastomosis device for connecting an end of a graft vessel to a target vessel at the site of the incision, the device comprising:
a member having a piercing element at a distal end thereof and the member being adapted to cooperate with a deployment tool such that the anastomosis device can be delivered to the incision site by the deployment tool and the piercing element can be withdrawn from the incision site prior to deployment of the anastomosis device, wherein the piercing element includes a cutting blade which is movable with respect to the member such that the cutting blade can be moved from a cutting position at which the cutting blade is exposed with respect to the member to a retracted position at which the cutting blade is not exposed with respect to the member, wherein the piercing element includes a vessel wall piercing portion and a trimming portion, the piercing portion forming the incision upon insertion of the distal end of the member into the vessel wall and the trimming portion removing tissue around the incision upon retraction of the member. - View Dependent Claims (14, 15, 16)
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17. A device for forming an incision in a wall of a target cessel and delivering an anastomosis device for connecting an end of a graft vessel to a target vessel at the site of the incision, the device comprising:
a member having a piercing element at a distal end thereof and the member being adapted to cooperate with a deployment tool such that the anastomosis device can be delivered to the incision site by the deployment tool and the piercing element can be withdrawn from the incision site prior to deployment of the anastomosis device, wherein the piercing element comprises a cutting blade which forms an elongated slit upon insertion of the piercing element into the vessel wall, and the member comprises a tubular member which includes tines at the distal end thereof, the tines being separated from each other and from the cutting blade by axially extending slits. - View Dependent Claims (18)
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19. A method of performing anastomosis comprising:
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using a device to form an incision in a wall of a target vessel, the device comprising;
a member having a piercing element at a distal end thereof, the member adapted to cooperate with a deployment tool such that an anastomosis device can be delivered to an incision site;
inserting the anastomosis device with the deployment tool into the incision, the anastomosis device having an end of a graft vessel everted around a first portion of the anastomosis device; and
manipulating the first portion of the anastomosis device with respect to a second portion of the anastomosis device to capture edges of the incision in the target vessel with the anastomosis device such that a fluid passage is established between the graft vessel and the target vessel. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification