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GB2264236A Expired / Lapsed GB ⏱️ 0.0 years remaining

Catheter and stent used therewith

Assignee: Individual
•
Filing: 1992-02-11
•
Granted: —
•
Expires: 2012-02-11
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Abstract

Abstract A temporary "sten" for use in conjunction with a balloon-type or other catheter, in order to shore-up tissue within e.g. an artery, comprises a multi-coil member 9a etc. which is contained in a substantially linear stressed condition within the catheter for transport to the diseased area and which when released from the catheter adopts an expanded coiled configuration to hold the damaged tissue in place whilst at the same time allowing blood flow through the artery. The stent may consist of stainless steel wire 8 which at its distal end comprises a plurality of coils 9a, 9b, 9c running parallel to one another. The distal ends of these coils may terminate together at 11 to form a lead wire for the stent. <IMAGE>

Inventors

  • 👤 Martin Terry Rothman

Bibliographic Details

Application Number —
Jurisdiction GB
Data Source google_patents
Last Synchronized 2026-10-22 15:53
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/95; A61F2/82; A61F2/86; A61F2/88; A61F2210/00; A61F2210/0014; A61F2210/0019; A61F2230/00; A61F2230/0063; A61F2230/0067; A61F2250/00; A61F2250/0058; A61F2250/0059

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 126 words
CLAIMS: I. A catheter for flattening the interior wall of an artery or other organ of the kind which includes the following combination of features: a) a balloon catheter or simple catheter tube; b) a stent contained within a) in a stressed collapsed condition, the tube a) and "stent" being movable axially with respect to one another to progressively bring the "stent" outside the tube, the "stent" then being radially expandable; is characterized in that the "stent" comprises a multi-coil element which in its contracted state is substantially linear to fit in the catheter but which when free of the catheter tube adopts an expanded hollow configuration whereby it can press against the interior surface of an artery but still allow blood flow through the artery.
Claim 2
Dependent Claim 31 words
A catheter as claimed in claim 1, in which the "stent" has a substantially straight lead portion at its distal end to assist the insertion of the catheter into the artery.
Claim 3
Dependent Claim 28 words
A catheter as claimed in claim 2, in which the straight lead portion is formed by the distal ends of the plurality of coiled portions of the "stent".
Claim 4
Dependent Claim 16 words
The "stent" as defined in any one of claims 1 to 3 separate from the catheter.
Claim 5
Dependent Claim 118 words
A temporary method of maintaining blood flow in a diseased artery, which method includes the steps of: a) inserting into the artery a catheter as claimed in any previous claim; b) positioning the distal end of the catheter with the enclosed "stent" in the vicinity of the diseased part of the artery' c) moving the catheter and enclosed "stent" axially with respect to one another to expose that portion of the "stent" which is adapted to expand radially when not constrained by the catheter tube to cause the expanded "stent" to come into contact with the diseased portion of the artery in order to press it radially outwardly; and d) withdrawing the catheter tube from within the artery.
Claim 6
Dependent Claim 16 words
A catheter substantially as hereinbefore described with reference to and as shown in the accompanying drawings.
Claim 7
Dependent Claim 16 words
A "stent" substantially as hereinbefore described with reference to and as shown in the accompanying drawings.
Claim 8
Dependent Claim 25 words
A temporary method of maintaining blood flow in a diseased artery substantially as hereinbefore described with reference to and as shown in the accompanying drawings.

References Cited (Backward Citations)

WO1983003752A1 Cited
EP0119688A2 Cited
WO1987004935A1 Cited
GB2189150A Cited
EP0312852A1 Cited
EP0321912A1 Cited
US5015253A Cited
GB2238245A Cited

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