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Patent Searching and Data


Title:
DRAINAGE TUBE
Document Type and Number:
WIPO Patent Application WO/1991/014474
Kind Code:
A1
Abstract:
The invention relates to medical techniques. A drainage tube is made of an elastic material and is provided with perforations on its working end (2). The surface of the working end (2) is configurated and has protrusions and depressions, the surface area of the top of each protrusion being less than the cross-section of the pancreatic duct opening to prevent the closing of the pancreatic duct opening by the wall of the drainage tube when the latter is placed inside the common biliary duct. The working end (2) of the tube should preferably be formed of a grid-like interwinding of filaments (5). The drainage tube is intended for use in hospitals dealing with biliary duct surgery.

Inventors:
MAZURIK SERGEI MIKHAILOVICH (SU)
MAZURIK MIKHAIL FEDOTOVICH (SU)
TSYGANOVA NINA ALEXEEVNA (SU)
Application Number:
PCT/SU1990/000074
Publication Date:
October 03, 1991
Filing Date:
March 27, 1990
Export Citation:
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Assignee:
POLTAV MED STOMATOLOG INST (SU)
International Classes:
A61M1/00; A61M27/00; A61M25/00; (IPC1-7): A61L31/00; A61M27/00
Foreign References:
CH484679A1970-01-31
DE3325920A11985-02-07
SU1437035A11988-11-15
Other References:
See also references of EP 0474870A4
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