EP0778036A1
Expired / Lapsed
EP
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Microcatheter
Assignee: Kanegafuchi Chemical Industry Co Ltd
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Filing: 1995-08-02
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Granted: —
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Expires: 2015-08-02
Abstract
Abstract A microcatheter for infusion, formed so that the front end portion of a shaft (2) comprises a porous tubular structure (3) not including a communication bore. This microcatheter can be inserted into a peripheral blood vessel along a guiding wire and/or on a blood current, and enables a contrast medium, a therapeutic material and a thrombolic material to be injected into a required part of a human body.
Inventors
- 👤 Kazuaki Kira
- 👤 Hiromi Maeda
- 👤 Shuji Isozaki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 20:21
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0067; A61M25/0068; A61M25/0043; A61M25/0021; A61M2025/0042; A61M2025/0057
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
54 words
A microcatheter for infusion wherein a tip portion of its shaft comprises a porous tubular structure having no communicating pores, a length of said porous tubular structure being from 20 to 60 cm, an outside diameter thereof being from 1 to 0.3 mm and a wall thickness thereof being from 0.2 to 0.05 mm.
Claim 2
Dependent Claim
26 words
A microcatheter as defined in claim 1, wherein an outside diameter of the shaft increases from its tip portion toward its proximal portion continuously or stepwise.
Claim 3
Dependent Claim
30 words
A microcatheter as defined in claim 1 or 2, wherein a pore ratio of the porous tubular structure decreases from its tip portion toward its proximal portion continuously or stepwise.
Claim 4
Dependent Claim
25 words
A microcatheter as defined in any one of claims 1 to 3, wherein an expansible member is provided at the tip portion of the shaft.
References Cited (Backward Citations)
No citation records indexed.
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