Temporary seal and method for facilitating anastomosis
First Claim
1. A method for forming a proximal anastomosis of a graft vessel on a fluid-carrying vessel in a patient'"'"'s body, the method comprising:
- forming an aperture in a wall of the vessel;
introducing through the aperture and into the vessel in confined configuration a resilient, flexible sealing element having a central stem and having a continuous disassociation region formed thereon to extend from the central stem;
expanding the sealing element to peripheral dimensions greater than the dimension of the aperture;
retaining the sealing element in position covering the aperture in sealing engagement within the vessel;
substantially completing anastomosing the graft vessel on the fluid-carrying vessel over the aperture, retaining an incomplete segment overlapping the central stem for removal of the sealing element;
disassembling the expanded sealing element along the disassociation region extending from the central stem for removal thereof as a continuous strand through the incomplete segment; and
completing the anastomosis of the graft vessel on the fluid-carrying vessel including along the incomplete segment.
4 Assignments
0 Petitions
Accused Products
Abstract
Forming a proximal anastomosis on an aortic wall includes method and instrumentation and apparatus for forming an aortic puncture and inserting a fluid-impervious sealing element with a lateral flange and central stem into the vessel through the puncture. An anastomosis of a graft vessel over the puncture is partially completed with the central stem of the sealing element protruding through the partial anastomosis. A removal instrument attaches to the central stem and retrieves the sealing element that disassembles in helical disassociation of the flange and stem into a continuous strand that is withdrawn from the partial anastomosis prior to completion of the procedure.
-
Citations
37 Claims
-
1. A method for forming a proximal anastomosis of a graft vessel on a fluid-carrying vessel in a patient'"'"'s body, the method comprising:
-
forming an aperture in a wall of the vessel;
introducing through the aperture and into the vessel in confined configuration a resilient, flexible sealing element having a central stem and having a continuous disassociation region formed thereon to extend from the central stem;
expanding the sealing element to peripheral dimensions greater than the dimension of the aperture;
retaining the sealing element in position covering the aperture in sealing engagement within the vessel;
substantially completing anastomosing the graft vessel on the fluid-carrying vessel over the aperture, retaining an incomplete segment overlapping the central stem for removal of the sealing element;
disassembling the expanded sealing element along the disassociation region extending from the central stem for removal thereof as a continuous strand through the incomplete segment; and
completing the anastomosis of the graft vessel on the fluid-carrying vessel including along the incomplete segment. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A method for forming a sealing element for insertion and removal with respect to a fluid-carrying vessel of a patient, the method comprising:
forming fluid-impervious flange extending radially from a central region to a substantially circular periphery; and
includingforming a continuous disassociation region along a meandering path from the central region to the circular periphery. - View Dependent Claims (8, 9, 10, 11)
-
12. A method of forming a temporary fluid-impervious sealing element comprising:
-
configuring a strand along a path and including an axial stem and a substantially lateral flange, with the path continuously meandering between the stem and an outer periphery of the flange; and
adhering contiguous adjacent segments of the strand in the stem and flange to form the fluid-impervious sealing element. - View Dependent Claims (13, 14)
-
-
15. A method for establishing a temporary fluid-tight seal within an aperture in a wall of a fluid-carrying vessel in the body of a patient, the method comprising:
-
introducing through the aperture a sealing element having a flange of substantially circular periphery and stem substantially normal to the flange in a central region thereof; and
exerting a supporting force through the aperture on one of the stem and flange for retaining fluid-sealing engagement of the circular periphery of the flange against an inner wall of the vessel covering the aperture. - View Dependent Claims (16, 17)
-
-
18. A temporary sealing element for forming a fluid-tight seal on the inner wall of a fluid conduit within a patient'"'"'s body, the temporary sealing element comprising:
a fluid impervious flange having an outer stem centrally formed thereon, the flange including a continuous region of diminished shear strength extending from the stem along a continuous path to the periphery for selectively reconfiguring the flange in response to tension applied to the stem to dissemble the flange along the continuous region into a continuous strand. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
-
29. A punch for forming an aperture in the wall of the fluid-carrying vessel in a patient'"'"'s body, the punch comprising:
-
an elongated hemostatic sheath including a lumen therethrough between distal and proximal ends thereof;
a plunger element slidably and rotatably disposed within the lumen through the hemostatic sheath and carrying a tissue-penetrating member for selective axial extension thereof beyond the distal end of the hemostatic sheath to penetrate the wall of a fluid-carrying vessel. - View Dependent Claims (30, 31, 32)
-
-
33. A kit of surgical components for anastomosing a graft vessel on a fluid-carrying vessel, comprising:
-
a punch for forming an aperture in a fluid-carrying vessel;
a sealing element including a continuous strand of material extending along a path forming an axial stem and a substantially lateral flange to a perimeter thereof of dimension greater than an aperture formable by the punch; and
an insertion instrument incorporating the sealing element in configuration for positioning the sealing element within an aperture formable by the punch. - View Dependent Claims (34, 35, 36, 37)
-
Specification