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EP0437121A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Filter-catheter combination

Assignee: Lefebvre Jean-Marie
•
Filing: 1990-11-07
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Granted: —
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Expires: 2010-11-07
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Abstract

Abstract Translated from French L'invention concerne un filtre (1) pour l'interruption partielle et au moins temporaire d'une veine. Ce filtre (1) comporte une canalisation (2) en polytétrafluoréthylène présentant vers son extrémité distale (2a) des entailles longitudinales (5) réparties symétriquement sur sa périphérie et délimitant des bandes flexibles (6) et un conduit (3) en polytétrafluoréthylène intérieur à la canalisation (2); le conduit (3) et la canalisation (2) sont solidarisés par exemple par thermosoudage par leurs extrémités distales (2a, 3a). De préférence un anneau (4) dans un matériau radio-opaque est inclus entre les extrémités distales (2a, 3a) lors du thermosoudage. Les bandes flexibles (6) se déploient transversalement par coulissement du conduit (3) dans la canalisation (2). Elles ont subi un traitement de thermofixation, mémorisant dans la structure polymérique du tétrafluoréthylène la forme déployée et/ou une forme en hélice. <IMAGE> The invention relates to a filter (1) for partial and at least temporary interruption of a vein. This filter (1) comprises a pipe (2) made of polytetrafluoroethylene having towards its distal end (2a) longitudinal notches (5) distributed symmetrically on its periphery and delimiting flexible bands (6) and a conduit (3) made of polytetrafluoroethylene inside the pipeline (2); the conduit (3) and the pipe (2) are joined for example by heat sealing by their distal ends (2a, 3a). Preferably a ring (4) in a radiopaque material is included between the distal ends (2a, 3a) during the heat sealing. The flexible bands (6) are deployed transversely by sliding the conduit (3) in the pipeline (2). They underwent a heat-fixing treatment, memorizing in the polymer structure of tetrafluoroethylene the deployed form and / or a helical form. <IMAGE>

Inventors

  • 👤 Jean-Marie Lefebvre

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-23 02:13
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; A; A61; A61F; A61F2/00; A61F2/01; A61F2/0108; A61F2/011; A61M; A61M25/00; A61M25/0067; A61M25/0082; B29C61/00; B29C61/06; B29C61/0608; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/114; B29C66/118; B29C66/12; B29C66/122; B29C66/1222; B29C66/1224; B29C66/50; B29C66/51; B29C66/53; B29C66/532; B29C66/5324; B29C66/53241; B29C66/61; B29C66/612; B29C66/70; B29C66/71; B29C71/00; B29C71/02; A61B; A61B17/00; A61B17/22; A61B2017/22038; A61B90/00; A61B90/39; A61F2/02; A61F2/30; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/3008; A61F2002/30092; A61F2002/30108; A61F2002/30199; A61F2002/30289; A61F2002/30316; A61F2002/30329; A61F2002/30331; A61F2002/30354; A61F2002/30362; A61F2002/3037; A61F2002/30451; A61F2002/30535; A61F2002/30589; A61F2002/30617; A61F2002/30667; A61F2002/30677; A61F2210/00; A61F2210/0014; A61F2220/00; A61F2220/0025; A61F2220/0033; A61F2220/0058; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0006; A61F2230/0063; A61F2230/0091; A61F2250/00; A61F2250/0058; A61F2250/0067; A61F2250/0069; A61F2250/0096; A61F2250/0097; A61F2250/0098; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00017; A61F2310/00023; A61F2310/00035; A61F2310/00155; A61M25/0068; A61M25/0074; A61M25/008; B29C35/00; B29C35/02; B29C35/08; B29C35/0805; B29C2035/0855; B29C53/00; B29C53/14; B29C66/534; B29K; B29K2027/00; B29K2027/12; B29K2027/18; B29L; B29L2031/00; B29L2031/753; B29L2031/7542; B29L2031/772; B29L2031/7732

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