| 摘要 |
A rigid urethral instrument for introduction into the bladder through the urethra, and for carrying out the functions of a urethral sound and a urethral catheter. The major portion of the instrument is substantially linear, with the leading, or proximal end being curved and terminating in a blunt dilating nose. A substantially linear longitudinal bore extends through the major portion of the instrument and serves to carry fluids between the distal and the proximal ends thereof. The longitudinal bore emerges from the proximal surface of the instrument in a region near the base of the curved portion. In one embodiment of the instrument, the bore emerges from the distal surface near the most distal end thereof. In another embodiment, the bore emerges from the distal surface more toward the proximal end, uniting with an external tap for facilitating irrigation and medication of the bladder. In still another embodiment of the urethral instrument, provision is made at the most proximal end for the attachment of a standard dilating filiform.
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