Medical needle with removable sheath

Details Medical needle with removable sheath Medical needle with removable sheath

1991-11-04

1993-03-23

Hindenburg, Max

Surgery

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

Treating material introduced into or removed from body...

128751, A61M 532

Patent

active

051959887

ABSTRACT:
A hemostatic gelatin sheath is fitted as a portion of an outer cannula over the distal portion of the inner cutting cannula of a biopsy needle. Positioning means associated with the cannulas accurately deposits the hemostatic sheath at the position where the biopsy specimen was taken and the needle with the specimen therein is then withdrawn. The in situ sheath minimizes bleeding from the biopsy site before the gelatin is absorbed by the body.

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