Blood-taking device

Details Blood-taking device Blood-taking device

1994-09-21

1996-11-19

Rimell, Sam

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

128760, A61B 500

Patent

active

055757782

ABSTRACT:
A blood-taking device has a comparatively flexible inner tubule and an outer tubule. There is an annular gap between both tubules. The front end of the inner tubule is provided with an end wall pressing against the annular protrusion of an end wall of the outer tubule. In order to fix the inner and outer tubules with respect to each other, the edge of the inner tubule end wall has a locking profile interlocking with a counter profile of the outer tubule. During centrifugation the inwardly directed protrusion sinks into the soft material of the end wall of the inner tubule. Thus, liquid is prevented from entering the annular gap during centrifugation.

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