Systems and methods for attaching a prosthesis within a body lumen or hollow organ
First Claim
1. A tool for applying an implantation force to a fastener sized and configured for implantation in tissue in response to an implantation force, the tool comprising a tool body, a driven member carried by the tool body and being operable to apply the implantation force, the driven member including a drive actuator to operate the driven member, and a mechanism on the driven member operable in a first condition to couple the fastener to the driven member to transfer the implantation force from the driven member to the fastener, the mechanism being operable in a second condition to release the fastener from the driven member, the mechanism including a second actuator operable independent of the drive actuator to place the mechanism in the second condition.
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Abstract
Systems and methods introduce and deploy prosthesis into a blood vessel or hollow body organ by intra-vascular access. The prosthesis is secured in place by fasteners which are implanted by an applier that is also deployed by intra-vascular access. The applier is configured to permit controlled, selective release of the fastener in a step that is independent of the step of implantation.
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Citations
47 Claims
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1. A tool for applying an implantation force to a fastener sized and configured for implantation in tissue in response to an implantation force, the tool comprising
a tool body, a driven member carried by the tool body and being operable to apply the implantation force, the driven member including a drive actuator to operate the driven member, and a mechanism on the driven member operable in a first condition to couple the fastener to the driven member to transfer the implantation force from the driven member to the fastener, the mechanism being operable in a second condition to release the fastener from the driven member, the mechanism including a second actuator operable independent of the drive actuator to place the mechanism in the second condition.
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25. A system for implanting a fastener in tissue comprising
a fastener sized and configured for implantation in tissue in response to an implantation force, including a shaped fitting carried by the fastener, and a fastening tool including a driven member operable to apply the implantation force, the driven member including a drive actuator to operate the driven member, a mechanism on the driven member operable in a first condition to engage the shaped fitting and couple the fastener to the driven member to transfer the implantation force from the driven member to the fastener, the mechanism being operable in a second condition to disengage the shaped fitting and release the fastener from the driven member, the mechanism including a second actuator operable independent of the drive actuator to place the mechanism in the second condition.
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32. A tool for applying an implantation force to a fastener sized and configured for implantation in tissue in response to an implantation force applied according to prescribed conditions, the tool comprising
a tool body, a driven member carried by the tool body and being operable to apply the implantation force, a mechanism on the driven member to couple the fastener to the driven member to transfer the implantation force from the driven member to the fastener, a controller coupled to the driven member, the controller including an initial phase operating the driven member to apply the implantation force under conditions than are short of the prescribed conditions, a lull phase commencing at the end of the initial phase interrupting operation of the driven member, a final phase operating the driven member under conditions that supplement the conditions of the initial phase to achieve the prescribed conditions, the controller requiring, after the initial phase, a prescribed command to advance from the lull phase to the final phase.
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40. A tool for applying an implantation force to a fastener sized and configured for implantation in tissue in response to an implantation force, the tool comprising
a tool body, a driven member carried by the tool body and being operable to apply the implantation force, and an element tethering the fastener to the tool body, the element including a frangible portion.
Specification