Medical device delivery member with flexible stretch resistant distal portion
AssigneeDePuy Synthes Products, Inc.
InventorsJuan Lorenzo, Tyson Montidoro, Daniel Solaun, David Blumenstyk
Life of this patent
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Abstract
A delivery member is provided for delivering and deploying an intravascular medical device. The delivery member includes a flexible distal portion including a wound wire coil surrounded by a flexible sleeve and inhibited from extending lengthwise by a stretch resistant member positioned through a lumen of the coil. The delivery member can include hypotubes positioned on either side (distally and proximally) from the wound wire coil to which the stretch resistant member and the wound wire coil can be attached.
Claims20
A delivery member for delivering an implantable medical device to a target location of a body vessel, the delivery member comprising:
- a distal hypotube comprising a distal end shaped to receive the implantable medical device;
- a support coil section terminating at a proximal most end and a distal most end, the distal most end directly affixed to a proximal most end of the distal hypotube;
- a proximal hypotube comprising:
- a distal most end directly affixed to the proximal most end of the support coil section;
- and
- a flexible section;
- a lumen extending through the distal hypotube, the support coil section, and the proximal hypotube;
- a flexible sleeve covering at least a majority of an outer surface of the support coil section;
- and
- a stretch resistant member extending through a portion of the lumen, the stretch resistant member affixed to the proximal hypotube and affixed to the distal hypotube.
A method of constructing a delivery member for delivering an implantable medical device, the method comprising:
- selecting a first hypotube comprising a first lumen therethrough;
- selecting a second hypotube comprising a flexible section and a second lumen through the second hypotube;
- forming a wire coil section extending entirely between a distal most end of the second hypotube and a proximal most end of the first hypotube such that a distal most end of the wire coil section is directly affixed to the proximal most end of the first hypotube and a proximal most end of the wire coil section is affixed to the distal most end of the second hypotube and the wire coil section defines a third lumen therethrough;
- extending a stretch resistant member through the third lumen and the flexible section;
- affixing the stretch resistant member to the first hypotube and the second hypotube;
- selecting a flexible sleeve;
- covering at least a majority of an outer surface of the wire coil section with the flexible sleeve;
- and
- detachably attaching the implantable medical device to the delivery member approximate a distal end of the first hypotube.
Dependencies are inferred from the claim text.