Tissue encapsulating sheath

Details Tissue encapsulating sheath Tissue encapsulating sheath

1991-10-24

1993-06-08

Aschenbrenner, Peter A.

Surgery

Instruments

Means for concretion removal

606206, 606114, A61B 1722

Patent

active

052174689

ABSTRACT:
A tissue retrieval apparatus for laparoscopic procedures includes a longitudinally extending tube having a tip end insertible into a patient. The tip end is formed to be radially expandable in response to withdrawal of tissue into the tip end of the tube. Tissue can be withdrawn into the tip end of the tube by using graspers or other devices that can be extended to engage and hold tissue. To reduce the possibility of contamination of healthy tissue, an elastic sheath is attached to cover the tip end of the tube. The elastic sheath is formed to radially expand in response to radial expansion of the tip end of the tube during withdrawal of tissue into the tip end of the tube.

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patent: 4243040 (1981-01-01), Beecher
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patent: 4865030 (1989-09-01), Polyak
patent: 4927426 (1990-05-01), Dretler
patent: 4997435 (1991-03-01), Demeter

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