Systems and methods for attaching a prosthesis with a body lumen or hollow organ
First Claim
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1. A tool for applying an implantation force to a helical fastener sized and configured for penetration in tissue comprising:
- a tool body comprising internal threads;
a driven member carried by the tool body and operable to apply the implantation force;
a carrier on the driven member configured to couple the fastener to the driven member to transfer the implantation force from the driven member to the fastener, the carrier comprising a distal portion wherein the distal portion remains within the tool body during implantation of the fastener; and
wherein the tool is configured to operate in phases including;
an initial phase operating the carrier to partially implant the fastener into tissue such that a proximal portion of the fastener remains coupled to the carrier, wherein the proximal portion of the fastener is retained within the internal threads of the tool body at the end of the initial phase;
a lull phase interrupting operation of the carrier, wherein the fastener may be removed; and
a final phase operating the carrier to release the fastener therefrom and implant the fastener in tissue.
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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
13 Claims
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1. A tool for applying an implantation force to a helical fastener sized and configured for penetration in tissue comprising:
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a tool body comprising internal threads; a driven member carried by the tool body and operable to apply the implantation force; a carrier on the driven member configured to couple the fastener to the driven member to transfer the implantation force from the driven member to the fastener, the carrier comprising a distal portion wherein the distal portion remains within the tool body during implantation of the fastener; and wherein the tool is configured to operate in phases including; an initial phase operating the carrier to partially implant the fastener into tissue such that a proximal portion of the fastener remains coupled to the carrier, wherein the proximal portion of the fastener is retained within the internal threads of the tool body at the end of the initial phase; a lull phase interrupting operation of the carrier, wherein the fastener may be removed; and a final phase operating the carrier to release the fastener therefrom and implant the fastener in tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A tool for applying an implantation force to a helical fastener sized and configured for penetration in tissue comprising:
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a tool body comprising a tubular member comprising internal threads; a driven member, disposed within the tubular member of the tool body and operable to apply the implantation force; a carrier disposed on the driven member and within the tubular member of the tool body, the carrier configured to couple the fastener to the driven member to transfer the implantation force from the driven member to the fastener, the carrier comprising a distal portion having a configuration that corresponds to a configuration of a proximal end of the fastener wherein the distal portion remains within the tool body during implantation of the fastener, and wherein the tool is configured to operate in phases including; an initial phase operating the carrier partially to implant the fastener into tissue such that a proximal portion of the fastener is retained within the internal threads of the tool body at the end of the initial phase, wherein the proximal end of the fastener engages with the distal portion of the carrier to couple the fastener to the carrier throughout the initial phase, a lull phase interrupting operation of the carrier, wherein the fastener may be removed, and a final phase operating the carrier to release the fastener therefrom and implant the fastener in tissue. - View Dependent Claims (13)
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Specification