Surgical extractor with closely angularly spaced individual fila

Details Surgical extractor with closely angularly spaced individual fila Surgical extractor with closely angularly spaced individual fila

1994-06-10

1996-03-05

Pellegrino, Stephen C.

Surgery

Instruments

Means for concretion removal

606113, A61B 1900

Patent

active

054963303

ABSTRACT:
A surgical extractor for removing calculi, such as kidney stones and gall stones, from the body. The extractor includes a handle at an proximal end of the extractor with a slider for operation by a physician. At the distal end the extractor includes a plurality of pairs of wires with portions of each pair being formed along the turn of a helix. When a retaining sheath is retracted, the wires, formed of a shape memory material such as stainless steel, expand such that each pair of wires closely assumes a path along a helical turn with individual wires remaining closely adjacent. This use of plural wires for each strand multiples the number of contacts with entrapped calculi and can be provided without any deleterious effect on the reliability or size of the extractor.

REFERENCES:
patent: 2943626 (1960-07-01), Dormia
patent: 3108593 (1963-10-01), Glassman
patent: 3472230 (1969-10-01), Fogarty
patent: 4046149 (1977-09-01), Komiya
patent: 4046150 (1977-09-01), Schwartz et al.
patent: 4203429 (1980-05-01), Vasilevsky
patent: 4299225 (1981-11-01), Glassman
patent: 4347846 (1982-09-01), Dormia
patent: 4590938 (1986-05-01), Segura et al.
patent: 4610662 (1986-09-01), Weikl et al.
patent: 4611594 (1986-09-01), Grayhack et al.
patent: 4616652 (1986-10-01), Simpson
patent: 4625726 (1986-12-01), Duthoy
patent: 4633871 (1987-01-01), Shinozuka
patent: 4807626 (1989-02-01), McGirr
patent: 5098441 (1992-03-01), Wechler
patent: 5176688 (1993-01-01), Narayan et al.
patent: 5190557 (1993-03-01), Borodulin et al.
patent: 5197968 (1993-03-01), Clement

Affiliated with

Also associated with

Rating

Surgical extractor with closely angularly spaced individual fila does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Surgical extractor with closely angularly spaced individual fila, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surgical extractor with closely angularly spaced individual fila will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1409797