Catheter set for spinal anaesthesia

Details Catheter set for spinal anaesthesia Catheter set for spinal anaesthesia

1989-08-07

1991-02-19

Rosenbaum, C. Fred

Surgery

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

Treating material introduced into or removed from body...

604164, 604272, 604 51, A61M 5178

Patent

active

049940368

ABSTRACT:
A spinal cannula adapted for insertion into an epidural cannula that may be advanced up to the dura. In placing the end of the spinal cannula intrathecally, the dura is pierced by the spinal cannula. Then, a guide wire is advanced to that intrathecal position through the spinal cannula. After removal of the spinal cannula, a spinal catheter is advanced over the guide wire and within the epidural cannula. The epidural cannula imparts the necessary directional stability to the catheter upon its advancement and facilitates the passage through the dura already perforated by the spinal cannula.

REFERENCES:
patent: 2922420 (1957-11-01), Chery
patent: 4230123 (1980-10-01), Hawkins, Jr.
patent: 4518383 (1985-05-01), Evans
patent: 4573448 (1986-03-01), Kambin
patent: 4650472 (1987-03-01), Bates
patent: 4721506 (1988-01-01), Teves
patent: 4737146 (1988-04-01), Amaki et al.
patent: 4808157 (1989-02-01), Coombs

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