Bivalve endoscopic sheath for direct vision insertion of urethral catheter

BIVALVE

ENDOSCOPIC

VISION

INSERTION

GILBERT

J. WISE,

M.D.

ARNOLD

JENSEN,

B.S.

From the Urology Division, Brooklyn, New York

SHEATH

OF URETHRAL

Maimonides

Medical

FOR DIRECT CATHETER

Center,

The high-riding bladder neck or urethral stricture with possible false passage often complicates insertion of a urethral catheter following endoscopic procedure. The bivalve endoscopic sheath provides a technique wherein a catheter may be inserted into the bladder following direct vision passage of the endoscope. Figure 1 demonstrates a prototype model of a 24 F metal sheath used for insertion of Foroblique telescope. After passage through the urethra into the bladder, the telescope is removed and the catheter inserted. The sheath can then be withdrawn and bivalved leaving the urethral catheter in situ. Brooklyn, New York 11219 (DR. WISE)

UROLOGY

/ NOVEMBER1980

/ VOLUMEXVI,

NUMBER5

FIGURE 1. (A) Urethral catheter in bivalve endoscopic sheath. (B) D isassembly of endoscopic sheath permitting its removal, leaving catheter in situ.

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