Compositions and methods for joining non-conjoined lumens
First Claim
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1. A method for joining at least two non-conjoined lumens in a patient which method comprises:
- a) placing a biocompatible sol-gel composition in a liquid phase or a gel phase in at least the distal portion of at least one of the lumens by injection with a hypodermic needle and/or a syringe, wherein when the sol-gel composition is placed in the lumen in the liquid phase, a phase transition is induced wherein the liquid phase changes to the gel phase, and wherein the gel phase of the sol-gel composition provides structural support to said portion of the lumen to facilitate joining of the lumens;
b) aligning the lumens;
c) closing the aligned lumens to form a conduit; and
d) removing the sol-gel composition by inducing a phase transition of the sol-gel composition from the gel phase to the liquid phase thereby establishing flow through the conduit.
1 Assignment
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Accused Products
Abstract
Disclosed are compositions, methods, and kits for joining together non-conjoined lumens in a patient'"'"'s body including vascular lumens. More particularly, in various aspects, this invention provides compositions, methods, and kits for joining such non-conjoined lumens, including small lumens typically requiring microsurgical technique.
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Citations
42 Claims
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1. A method for joining at least two non-conjoined lumens in a patient which method comprises:
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a) placing a biocompatible sol-gel composition in a liquid phase or a gel phase in at least the distal portion of at least one of the lumens by injection with a hypodermic needle and/or a syringe, wherein when the sol-gel composition is placed in the lumen in the liquid phase, a phase transition is induced wherein the liquid phase changes to the gel phase, and wherein the gel phase of the sol-gel composition provides structural support to said portion of the lumen to facilitate joining of the lumens; b) aligning the lumens; c) closing the aligned lumens to form a conduit; and d) removing the sol-gel composition by inducing a phase transition of the sol-gel composition from the gel phase to the liquid phase thereby establishing flow through the conduit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 36, 37, 38)
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35. The method of 34, wherein the adhesive further forms an external stent.
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39. A method for joining at least two non-conjoined lumens having distal ends, comprising the steps of:
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a) placing a phase-reversible sol-gel in a liquid phase inside at least a portion of the distal end of the first lumen by injection with a hypodermic needle and/or syringe, and inducing a phase transition wherein the liquid phase changes to a gel phase, and wherein the gel phase of the sol-gel composition provides structural support to said portion of the first lumen; b) placing a phase-reversible sol-gel in a liquid phase inside at least a portion of the distal end of a second lumen by injection with a hypodermic needle and/or a syringe, and inducing a phase transition wherein the liquid phase changes to a gel phase, and wherein the gel phase of the sol-gel composition provides structural support to said portion of the second lumen; c) aligning the distal portions of the first and second lumens; d) joining said lumens so as to provide for a conduit; e) inducing a phase change in the phase-reversible sol-gel in said conduit wherein said gel phase changes to a liquid phase; and f) allowing flow through said conduit.
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40. A method for joining at least two non-conjoined lumens having distal ends, comprising the steps of:
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a) placing a phase-reversible sol-gel in a gel phase inside at least a portion of the distal end of a first lumen by injection with a hypodermic needle and/or a syringe, and in a manner which provides structural support to said portion of the first lumen; b) placing a phase-reversible sol-gel in a gel phase inside at least a portion of the distal end of a second lumen by injection with a hypodermic needle and/or a syringe, and in a manner which provides structural support to said portion of the second lumen; c) aligning the distal portions of the first and second lumens; d) joining said lumens so as to provide for a conduit; e) inducing a phase change in the phase-reversible sol-gel in said conduit wherein said gel phase changes to a liquid phase; and f) allowing flow through said conduit.
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41. A method for joining at least two non-conjoined lumens having distal ends, comprising the steps of:
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a) placing a phase-reversible sol-gel in a liquid phase or a gel phase inside at least a portion of the distal end of a first lumen by injection with a hypodermic needle and/or a syringe, wherein when the sol-gel composition is placed in the lumen in the liquid phase, a phase transition is induced wherein the liquid phase changes to the gel phase, and wherein the gel phase of the sol-gel composition provides structural support to said portion of the first lumen and wherein said sol-gel protrudes from the distal end; b) mating the distal end of a second lumen with said protrusion from the first lumen thereby aligning the first and second lumens; c) joining said lumens so as to provide for a conduit; d) inducing a phase change in the phase-reversible sol-gel in said conduit wherein said gel phase changes to a liquid phase; and e) allowing flow through said conduit.
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42. A method of connecting lumens within a living mammal, comprising the steps of:
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providing a phase-reversible gel inside a first lumen by injection with a hypodermic needle and/or syringe, and in a manner which holds the first lumen open; providing a phase-reversible gel inside a second lumen by injection with a hypodermic needle and and/or a syringe, and in a manner which holds the second lumen open; applying adhesive between an end of the first lumen and an end of the second lumen and allowing the adhesive to form bonds between the first and second lumens; inducing a phase change in the phase-reversible gel inside the first lumen and inside the second lumen; and allowing flow through the first lumen to the second lumen.
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Specification