Stent-catheter assembly with a releasable connection for stent retention
First Claim
Patent Images
1. A medical assembly comprising:
- a stent;
a catheter assembly comprising a catheter body and a balloon having the stent positioned on the balloon, the balloon having a deflated configuration and capable of being enlarged to an expanded configuration; and
a releasable connection between the stent and the catheter body, wherein the releasable connection retains the stent on the catheter assembly when the balloon is in the deflated configuration, wherein the releasable connection is formed in a region of the catheter body axially distal or proximal to the balloon, and the releasable connection releases the stent from the catheter body in response to enlargement of the balloon or when the balloon has been enlarged to an expanded configuration, wherein the releasable connection is located between an inner surface of the stent and an outer surface of the catheter body.
1 Assignment
0 Petitions
Accused Products
Abstract
Medical assemblies with a releasable connection and methods of constructing such medical assemblies are disclosed. The medical assemblies generally comprise a stent, a catheter assembly having catheter body a balloon, and a releasable connection between the stent and the catheter assembly that releases the stent from the catheter assembly in response to enlargement of the balloon or when the balloon has been enlarged to an expanded configuration.
336 Citations
36 Claims
-
1. A medical assembly comprising:
-
a stent; a catheter assembly comprising a catheter body and a balloon having the stent positioned on the balloon, the balloon having a deflated configuration and capable of being enlarged to an expanded configuration; and a releasable connection between the stent and the catheter body, wherein the releasable connection retains the stent on the catheter assembly when the balloon is in the deflated configuration, wherein the releasable connection is formed in a region of the catheter body axially distal or proximal to the balloon, and the releasable connection releases the stent from the catheter body in response to enlargement of the balloon or when the balloon has been enlarged to an expanded configuration, wherein the releasable connection is located between an inner surface of the stent and an outer surface of the catheter body. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A method for constructing a medical assembly comprising:
-
placing a stent over a balloon of a catheter assembly; forming a releasable connection between the stent and the catheter assembly such that in response to the enlargement of the balloon or when the balloon has been enlarged to an expanded configuration, the stent is detached from the catheter assembly, wherein the forming a releasable connection comprises; depositing an adhesive material on an outer surface of the catheter assembly to form the releasable connection, the adhesive material being of the type that allows for the detachment of the stent from the catheter assembly in response to the enlargement of the balloon or when the balloon has been enlarged to an expanded configuration; and applying pressure to the stent to allow the adhesive material to contact the stent and catheter assembly to form the releasable connection; applying heat to assist the pressure to form the releasable connection formed by the adhesive material. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
-
-
28. A method for constructing a medical assembly comprising:
-
placing a stent over a balloon of a catheter assembly; and forming a releasable connection between the stent and the catheter assembly by applying heat using a heat source positioned between a surface of the stent and a surface of the catheter assembly such that in response to the enlargement of the balloon or when the balloon has been enlarged to an expanded configuration, the stent is detached from the catheter assembly, wherein the stent is a biodegradable stent and the method of forming the releasable connection comprises applying the heat to weld an inner surface of the biodegradable stent to an outer surface of the catheter assembly to form the connection between the stent and the catheter assembly. - View Dependent Claims (29, 30, 31)
-
-
32. A method for constructing a medical assembly comprising:
-
placing a stent over a balloon of a catheter assembly; and forming a releasable connection between the stent and the catheter assembly such that in response to the enlargement of the balloon or when the balloon has been enlarged to an expanded configuration, the stent is detached from the catheter assembly, wherein the forming the releasable connection comprises; placing a heating element between the stent and the catheter assembly; and applying heat to weld the stent to the catheter assembly. - View Dependent Claims (33, 34, 35, 36)
-
Specification