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EP0442579A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Drainage catheter

Assignee: Cordis Europa NV
•
Filing: 1991-02-12
•
Granted: —
•
Expires: 2011-02-12
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Abstract

Abstract Drainage catheter, comprising a tube-like basic body (2) with mutually separated pressure channel (3) and discharge channel (4), connecting means at a rear end for connecting said pressure channel and said discharge channel to respectively a source of liquid under pressure and discharge means. At the oppositely located front end said discharge channel is provided with an inlet opening (9), formed in a side wall of said basic body, said pressure channel bending back at the front end in the direction towards the rear end and a spray nozzle (16) being arranged in said front end of said discharge channel such that it can direct a liquid jet inside said discharge channel along said inlet opening, such that a suction of said inlet opening is created due to ejector action.

Inventors

  • 👤 Wilhelmus Antonius Maria Griep
  • 👤 Cornelis Philippus Nap

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-23 05:38
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0067; A61M25/0068; A61M1/00; A61M1/84; A61M1/85; A61M1/80; A61M1/804; A61M2025/0073; A61M25/008; A61M2025/0081

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 127 words
Drainage catheter, comprising a tube-like basic body with mutually separated pressure channel and discharge channel, connecting means at a rear end for connecting said pressure channel and said discharge channel to respectively a source of liquid under pressure and discharge means and wherein at the oppositely located front end said discharge channel is provided with an inlet opening, formed in a side wall of said basic body, said pressure channel bending back at the front end in the direction towards the rear end and a spray nozzle being arranged in said front end of said discharge channel such that it can direct a liquid jet inside said discharge channel along said inlet opening, such that a suction at said inlet opening is created due to ejector action.
Claim 2
Dependent Claim 41 words
Catheter as claimed in claim 1, wherein close to the front end at least one narrow passage opening is formed on a side remote from the inlet opening in an outer wall portion of the basic body bounding the pressure channel.
Claim 3
Dependent Claim 21 words
Catheter as claimed in claim 2, wherein a narrow passage opening is formed in the leading end face of the catheter.
Claim 4
Dependent Claim 34 words
Drainage catheter as claimed in claim 1 comprising at the front end a metal U-shaped tubel sealingly engaging with one leg in said pressure channel and with a second leg in said discharge channel.
Claim 5
Dependent Claim 28 words
Drainage catheter as claimed in claim 4, wherein said second leg of said U-shaped tube is narrowed toward its free end so as to form a jet nozzle.
Claim 6
Dependent Claim 31 words
Assembly of a drainage catheter according to one of the preceding claims, a source of liquid under pressure connected to said pressure channel and a syringe connected to said discharge channel.

References Cited (Backward Citations)

EP0175096A1 Cited
US4715848A Cited
US4735620A Cited
US4861333A Cited

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