Stent delivery with expansion assisting delivery wire

A wire and delivery technology, used in stents, devices for human tubular structures, medical science, etc., can solve the problems of unrecoverable braided implants, repositioning, unconsciousness, and inability to fully open braids.

Inactive Publication Date: 2020-03-06
DEPUY SYNTHES PROD INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Often problems such as involuntary braid movement or inability to fully open the braid
Furthermore, braided implants separated from the delivery wire cannot be recovered for repositioning

Method used

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  • Stent delivery with expansion assisting delivery wire
  • Stent delivery with expansion assisting delivery wire
  • Stent delivery with expansion assisting delivery wire

Examples

Experimental program
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Embodiment Construction

[0035] In the following detailed description, numerous specific details are set forth by way of example in order to provide a thorough understanding of the relevant teachings. It should be apparent, however, to one skilled in the art that the teachings of the present invention may be practiced without such details. In other instances, well-known methods, procedures, components and / or circuits have been described at a relatively high level (without detail) in order not to unnecessarily obscure aspects of the present teachings.

[0036] Such as figure 1 As shown, an example of implant system 100 may have catheter 102 , expandable element 200 and delivery wire 106 . The catheter 102 may have a lumen 104 and the expandable element 200 may be formed into a compressed configuration sized to fit within the lumen 104 of the catheter 102 . Expandable element 200 may have a proximal end 202, a distal end 204, a braided portion 206 positioned between proximal end 202 and distal end 204...

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PUM

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Abstract

The invention is entitled stent delivery with expansion assisting delivery wire. An expandable element is provided having a distal anchor member at a distal end, a proximal anchor member at a proximalend, and a braided intermediate portion. The expandable element can be delivered to a treatment site through a catheter by a delivery wire having a first, distal bump that can be translated distallyto push the distal anchor distally and release the distal anchor upon exiting a distal end of the catheter, a shaped segment that can be moved to apply a radial force from within the braided intermediate portion to expand the braided intermediate portion, and a second, proximal bump that can be translated distally to push the proximal anchor distally and expel the expandable element from the catheter. The delivery wire can also have a third, recapture bump positioned between the proximal and distal bumps that can be translated proximally to retract a partially implanted expandable element intothe catheter.

Description

technical field [0001] The present invention relates generally to devices for interventional therapeutic procedures or vascular surgery to treat defects in the vasculature, and more particularly to delivering a stent to a treatment site in a patient's body lumen and opening the stent at the treatment site. Background technique [0002] Stents are inserted into blood vessels to provide an open pathway within the blood vessel, and they have been widely used for endovascular angioplasty and other applications of occluded blood vessels. Stents can be self-expanding, or can be expanded by radial force applied from within the stent, for example when the stent is fitted with a balloon. [0003] Braided stents feature tubes of metal wires woven together using a plain weave technique. During delivery to the treatment site, the braided stent may be advanced through a small diameter catheter in an elongated collapsed configuration, and the braided stent may expand in diameter at the t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/966A61F2/90
CPCA61F2/06A61F2/90A61F2/95A61F2/966A61F2002/823A61F2002/8486A61F2002/9505A61F2002/9534A61F2002/9665A61F2210/0014A61F2250/0098A61F2002/9511A61F2/243A61F2/2436A61F2/848A61F2/844A61L31/14
Inventor R.斯拉扎茨J.洛伦佐L.戈罗乔P.佩罗索
Owner DEPUY SYNTHES PROD INC
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