Temporary anastomotic seal and method
First Claim
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1. An apparatus for forming a temporary and substantially fluid-tight seal on an inner wall of a fluid conduit within a patient'"'"'s body, the apparatus comprising:
- a substantially fluid-impervious flange comprising an outer periphery and a stem, wherein the flange comprises a tube of polymer material with a tensile member disposed in the tube, wherein adjacent convolutes of the tube are attached to one another by adhesion to form the flange and wherein the flange is configured to be selectively disassembled between the adjacent convolutes.
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Abstract
Forming a proximal anastomosis on an aortic wall includes method and instrumentation and apparatus for forming an aortic puncture and inserting into the vessel through the puncture a fluid-impervious sealing element with a protruding retainer. An anastomosis of a graft vessel over the puncture is partially completed with the retainer of the sealing element protruding through the partial anastomosis. The retainer facilitates removal of the sealing element from the partial anastomosis prior to completion of the procedure.
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Citations
31 Claims
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1. An apparatus for forming a temporary and substantially fluid-tight seal on an inner wall of a fluid conduit within a patient'"'"'s body, the apparatus comprising:
a substantially fluid-impervious flange comprising an outer periphery and a stem, wherein the flange comprises a tube of polymer material with a tensile member disposed in the tube, wherein adjacent convolutes of the tube are attached to one another by adhesion to form the flange and wherein the flange is configured to be selectively disassembled between the adjacent convolutes. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus for forming a temporary fluid-tight seal on the inner wall of a fluid conduit within a patient'"'"'s body, the apparatus comprising:
a flange comprising a tube of polymer material with a suture disposed in the tube and a continuous path of diminished shear strength formed within the flange, wherein adjacent convolutes of the tube are attached to one another by adhesion and the flange is configured for disassembling between the adjacent convolutes of the tube, wherein the flange further comprises an outer periphery and a stem configured to protrude through an aperture in a wall of the fluid conduit, wherein tension applied to the flange disassembles the flange between the adjacent convolutes so the flange moves between an assembled state and a disassembled. - View Dependent Claims (9)
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10. A sealing element for forming a fluid-tight seal within a patient'"'"'s body, comprising:
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a flange comprising a spirally-wound tube of polymer material with a tensile member disposed in the tube, the flange having an assembled state and a disassembled state and is further configured to tear between adjacent convolutes of the tube that are attached to one another so as to transform the flange from the assembled state to the disassembled state; wherein while in the assembled state the flange is substantially impervious to bodily fluids. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A sealing element for forming a fluid-tight seal within a patient'"'"'s body, comprising:
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a flange comprising a tube of polymer material with a tensile member disposed in the tube, wherein the flange is configured to transform from an assembled state to a partially disassembled state by tearing occurring between adjacent convolutes of the tube that are attached to one another; and a support structure connected to the flange; wherein the flange while in the assembled state is substantially blood impervious. - View Dependent Claims (19, 20, 21, 22, 23)
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24. An apparatus for forming a temporary fluid-tight seal on the inner wall of a fluid conduit within a patient'"'"'s body, the apparatus comprising:
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a flange capable of being at least partially disassembled by shear failure along a continuous path of diminished shear strength within the flange, wherein the continuous path of diminished shear strength attaches portions of the flange to one another, wherein the flange further comprises an outer periphery and a stem configured to protrude through an aperture in a wall of the fluid conduit, wherein tension applied to the flange provides for at least partial disassembly of the flange to move between an assembled state and a partially disassembled state; a support structure; and a tether connecting the support structure to the flange, wherein the flange is configured for sealing an aperture within a blood-carrying vessel, and the support structure comprises a resilient, expandable frame that in an expanded state applies tension between the flange and an inside surface of the blood-carrying vessel via the tether extending from the frame to the flange for purposes of forming a fluid tight seal between the flange and an inside surface of the blood carrying vessel.
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25. A sealing element for forming a fluid-tight seal within a patient'"'"'s body, comprising:
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a flange configured to transform from an assembled state to a disassembled state, wherein transforming from the assembled state to the disassembled state is achieved at least partially due to tearing occurring along a region of diminished shear strength of the flange; a support structure that comprises an expandable frame; and a tether connecting the support structure to the flange; wherein the flange while in the assembled state is substantially blood impervious, and wherein the frame, in an expanded state, applies tension between the flange and an inside surface of a blood-carrying vessel via the tether.
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26. A sealing element for forming a fluid-tight seal within a patient'"'"'s body, comprising:
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a flange comprising a tube of polymer material with a tensile member disposed in the tube forming a plurality of spirally-wound convolutes, wherein adjacent convolutes are attached together, and the flange has an assembled state and a disassembled state and is configured to transform from the assembled state to the disassembled state by detaching adjacent convolutes, wherein the flange has a different profile in the disassembled state than in the assembled state; wherein while in the assembled state the flange is both concave in shape and substantially impervious to fluid. - View Dependent Claims (27, 28, 29, 30, 31)
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Specification