Method and device for vascular repair
AssigneeDuke University
InventorRichard S. Stack
Life of this patent
Estimating the term…
Abstract
A method and device are provided for sealing a perforation in the wall of, for example, a blood vessel. The device is in the form of a two part closure which seals the hole by clamping the tissue surrounding the hole from both the inside and the outside of the vessel. In accordance with one exemplary embodiment, two rivet portions are provided which are bayonet or screw threadedly interlocked to clamp the vessel wall about the perforation. An alternate embodiment applies heat to couple the rivet parts as well as to cauterize the wound site. Heat may also advantageously be used to separate the rivet from its delivery system.
Claims22
A device for sealing a perforation or incision in a duct or hollow organ comprising:
- an inner rivet member including a plate portion having first and second side faces and a stem portion extending from the second side face of said plate portion, said rivet member being made at least in part of a material that is bio-resorbable;
- and
- an outer rivet member including a plate portion having first and second side faces and a stem portion extending from said second side face of said plate portion in a direction away from said inner rivet member;
- said outer rivet member having a central bore extending from said first side face of said plate through the stem portion of said outer rivet member for sleevelike coupling with said inner rivet member stem, said outer rivet member being made at least in part of a material that is bio-resorbable.
A method of sealing a perforation or incision in a duct or hollow organ comprising:
- providing an inner rivet member including a plate portion having first and second side faces and a stem portion extending from said second side face of said plate portion;
- providing an outer rivet member including a plate portion having first and second side faces, a stem portion extending from said second side face of said plate portion in a direction away from said inner rivet members, and a central bore defined at least partially therethrough for receiving said stem portion of said inner rivet member;
- inserting said inner rivet member through said perforation or incision into the interior of the duct or hollow organ;
- retracting said inner rivet member so that said plate portion thereof is in engagement with a periphery of said perforation or incision and said stem portion thereof projects through the perforation or incision;
- delivering said outer rivet member to a position adjacent to but exterior of the duct or hollow organ;
- engaging said inner and outer rivet members so that said stem of said inner rivet member extends into said bore of said outer rivet member at least partially through said stem portion thereof breaking the plane of said plate portion of the outer rivet member;
- and
- coupling said inner and outer rivet members.
A device for sealing a perforation or incision in a duct or hollow organ comprising:
- an inner rivet member including a plate portion having first and second side faces and a stem portion extending from the second side face of said plate portion, said rivet member being made at least in part of a porous material to facilitate tissue ingrowth;
- and
- an outer rivet member including a plate portion having first and second side faces and a stem portion extending from said second side face of said plate portion in a direction away from said inner rivet member;
- said outer rivet member having a central bore extending from said first side face of said plate through the stem portion of said outer rivet member for sleeve-like coupling with said inner rivet member stem, said outer rivet member being made at least in part of a porous material to facilitate tissue ingrowth.
Dependencies are inferred from the claim text.