摘要:
A method and system for performing anastomosis may use an anvil to control and support a tissue site during an anastomosis procedure involving tissue bonding techniques such as adhesive tissue bonding. Adhesive may be applied to mating surfaces of the graft and/or target vessels either before or after the vessels are brought into contact. Adhesive may be applied via an applicator associated with the anvil.
摘要:
A surgical stapler may include a staple holder, an anvil connected to the staple holder, where at least one of the staple holder and the anvil may be movable relative to the other, and where the anvil may include a groove defined therein, and a cutter that may be slidable along the groove in the anvil. Such a stapler may be used for treating a tissue structure having a lumen defined therein and a wall surrounding the lumen, such as by inserting the anvil into the lumen of the tissue structure through an opening in the wall of the tissue structure; and incising the wall of the tissue structure from the inside, utilizing the cutter.
摘要:
A method for connecting a graft vessel to a target vessel may utilize an integrated tool that includes a movable cam having a number of discrete slots defined therein. The method may include moving the cam, creating an opening in the wall of the target vessel with the integrated tool; and advancing an anastomosis device at least partially into the opening with the integrated tool, where moving the cam causes both the creating of the opening and the advancing of the anastomosis device.
摘要:
An anastomosis device may include an outer loop and an inner loop connected to and substantially concentric with the inner loop. The outer loop and the inner loop may be connected by at least one hinge. At least one of the outer loop and the inner loop may be movable relative to the other along an axis defined by at least one hinge.
摘要:
A device for everting an end of a hollow tissue structure may include a mandrel and a collar proximal to the mandrel. The mandrel may be elastomeric and deformable. At least one of the collar and the mandrel may be movable relative to the other. Deformation of the mandrel everts the end of the hollow tissue structure.
摘要:
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.
摘要:
A tissue punch for creating a hole in the wall of a target blood vessel for receiving an anastomosis device includes a piercing element for penetrating the tissue and a cutting element for cutting a plug of tissue around the pierced hole. The tissue punch includes a trocar for inserting the piercing element. After punching is complete, the piercing element is removed from the trocar through a side wall of the trocar so that a medical device can be deployed through the trocar lumen. The tissue punch may also include a tissue trap for trapping the plug of tissue.
摘要:
A medical device which can be implanted at a target site in a living body. The device includes an inner flange formed by radial expansion of the device and an outer flange formed by axial compression of the device. The device can include an implant portion and a discard portion which separate from each other during formation of the outer flange. The separation can occur by fracturing a frangible linkage or by mechanically separating a portion of the outer flange from a deployment tool. The device can be a one piece anastomosis device for connecting a graft vessel to a target vessel without the use of conventional sutures. The inner and outer flanges capture the edges of an opening in a target vessel and secure the graft vessel to the opening in the target vessel. The device greatly increases the speed with which anastomosis can be performed over known suturing methods.
摘要:
An apparatus for performing anastomosis between a graft vessel and a target vessel may include a trocar that may create an opening in the target vessel. At least part of the trocar may be expandable to allow an anastomosis device to pass through the distal end thereof. The apparatus may include a holder configured to hold the anastomosis device, and place and deploy the anastomosis device in the opening created by the trocar.
摘要:
A tool that has an introducer having a space therein and a distal aperture at the distal end thereof, and a spike movable within the introducer, may be used in a surgical method for treating a vessel wall. A tissue plug may be removed from the vessel wall with the spike, whereby an opening remains in the vessel wall. The spike then may be moved within the space in the introducer in a direction away from the longitudinal centerline of the distal aperture. An object then may be delivered through the introducer and out of the distal aperture to the opening in the vessel wall.