Stent deployment catheter with collapsible sheath

Details Stent deployment catheter with collapsible sheath Stent deployment catheter with collapsible sheath

1995-05-18

1996-07-09

Thaler, Michael H.

Surgery

Instruments

Means for inserting or removing conduit within body

606191, 606198, A61B 1700

Patent

active

055340075

ABSTRACT:
The present invention provides an improved stent delivery catheter. The stent delivery system comprises a catheter having a stent receiving portion adapted to receive a stent near the distal end of the catheter and a stent concentrically arranged around the catheter within the stent receiving portion. The stent delivery system further comprises a proximal outer sheath, a retractable distal sheath surrounding at least a portion of the stent and containing the stent in its reduced delivery configuration and a pull back means connected to the retractable distal sheath. The system further comprises a collapsible sheath concentrically arranged around the catheter and located between the retractable distal sheath and the proximal outer sheath, whereby when the pull back means is pulled proximally the distal sheath is retracted, causing the collapsible sheath to collapse and freeing the stent for delivery.

REFERENCES:
patent: 4787899 (1988-11-01), Lazarus
patent: 5026377 (1991-06-01), Burton et al.
patent: 5151105 (1992-09-01), Kwan-Gett
patent: 5188635 (1993-02-01), Radtke
patent: 5250070 (1993-10-01), Parodi
patent: 5263963 (1993-11-01), Garrison et al.
patent: 5389100 (1995-02-01), Bacich et al.
patent: 5411507 (1995-05-01), Heckele
patent: 5456667 (1995-10-01), Ham et al.

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