Slipover antegrade loading calculus extraction instrument system

Details Slipover antegrade loading calculus extraction instrument system Slipover antegrade loading calculus extraction instrument system

1986-08-22

1990-01-16

Rosenbaum, C. Fred

Surgery

Instruments

Means for concretion removal

604 54, A61B 1700

Patent

active

048936219

ABSTRACT:
Ureteral stones or calculi may be extracted with a minimum amount of risk of trauma and damage to the ureter by use of the present invention's slipover extraction device. The present invention first positions a guide wire beyond the ureteral stone. An open-end, hollow catheter is then slid coaxially along the guide wire to be also positioned beyond the stone. After the guide wire is removed, a stone basket is slid coaxially within the catheter, where it is also positioned beyond the stone for extraction.

REFERENCES:
patent: 2943626 (1960-07-01), Dormia
patent: 3886933 (1975-06-01), Mori et al.
patent: 4203429 (1980-05-01), Vasilevsky et al.
patent: 4590938 (1986-05-01), Segura et al.
patent: 4643184 (1987-02-01), Mobin-Uddin
Catheters & Accessories Cardiology-Radiology, United States Catheter & Instrument Corp., New York, 1964, p. 32.

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