Surgical retrieval basket with the ability to capture and releas

Details Surgical retrieval basket with the ability to capture and releas Surgical retrieval basket with the ability to capture and releas

1998-04-23

1999-08-31

Buiz, Michael

Surgery

Instruments

Means for concretion removal

606128, 606106, 606206, 606200, 604264, 604265, A61B 1722

Patent

active

059447281

ABSTRACT:
A surgical extractor, and related method, for removing material (such as calculi and stones) from the body has the ability to capture and release material. The extractor has a sheath, a basket comprised of a plurality of legs that are unattached at a distal end of the basket and joined at a proximal base of the basket, and a plunger at the distal end of the sheath. The legs are movable relative to the sheath to achieve a collapsed position within the sheath and an extended position outside of the sheath in the form of an open basket. The plunger can be moved back and forth between a withdrawn position against the distal end of the sheath with the basket legs in the open position and an extended position away from the distal end of the sheath with the basket legs in a closed position. The distal ends of the legs are farther apart from each other when in the open position than when in the closed position.

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Vorwerk, Dierk et al., "Percutaneous Embolectomy: In Vitro Investigations of the Self-expanding Tulip Sheath.sup.1 ", RSNA, Feb. 1992.
Vorwerk, Dierk et al., "Percutaneous Ballon Embolectomy with a Self-expanding Tulip Sheath: In Vitro Experiments", RSNA, Oct. 1995.

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