Implantable medical device detachment system with flexible braid section
AssigneeDePuy Synthes Products, Inc.
InventorsMelissa Clinger, Kirk Johnson
Life of this patent
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Abstract
The disclosed technology includes a detachment system for delivering an implantable medical device to a target location of a body vessel including a proximal delivery tube, a distal delivery tube, and a braid segment disposed between. The distal tube includes a proximal end, a distal end, and a compressible portion of the tube itself, between the proximal and distal ends which is axially movable from a compressed to an elongated condition. The proximal tube has a proximal end and a distal end. The braid segment is formed from a plurality of wires. An engagement system engages and deploys the implantable medical device engaged at the distal end of the distal tube.
Claims18
A detachment system for delivering an implantable medical device to a target location of a body vessel (BV), comprising:
- a generally hollow, relatively stiff proximal tube having a proximal end and a distal end, the distal end comprising a flexible section;
- a generally hollow, relatively flexible distal tube comprising:
- a proximal end;
- a distal end;
- and
- a compressible portion of the relatively flexible distal tube itself which is axially movable from a compressed condition to an elongated condition;
- a flexible braid segment disposed between the proximal end of the relatively flexible distal tube and the flexible section of the distal end of the relatively stiff proximal tube, the flexible braid segment formed from a plurality of wires;
- a polymer sleeve disposed over at least a portion of the flexible section of the relatively stiff proximal tube, the entirety of the braid segment, and the entirety of the relatively flexible distal tube;
- and
- an engagement system configured to engage and deploy the implantable medical device disposed at the distal end of the distal tube;
- wherein the polymer sleeve is fixedly attached to the relatively flexible distal tube or the relatively stiff proximal tube.
A method of detaching an implantable medical device, comprising
- forming a compressible portion on a proximal end of a relatively flexible distal tube;
- forming a flexible portion on a distal end of a relatively stiff proximal tube;
- attaching a flexible braid assembly to the distal end of the relatively stiff proximal tube and the proximal end of the relatively flexible distal tube;
- sliding a polymer sleeve over at least a portion of the flexible section of the relatively stiff proximal tube, the entirety of the flexible braid assembly, and the entirety of the relatively flexible distal tube;
- fixedly attaching the polymer sleeve to the relatively flexible distal tube or the relatively stiff proximal tube;
- and
- engaging the implantable medical device with an engagement system.
Dependencies are inferred from the claim text.