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December 1956

Improved and Simplified Tidal Drainage: A Preliminary Report

Author Affiliations

From the Department of Surgery, Hahnemann Medical College and Hospital of Philadelphia.

AMA Arch Surg. 1956;73(6):989-990. doi:10.1001/archsurg.1956.01280060089020

Urinary stasis with attendant cystitis has been a problem in the long-term management of patients with the indwelling urethral catheter. Tidal drainage has been offered as a practical solution to this problem. It has been our experience that the instruments presently available fail to empty the bladder and only remove sufficient fluid to relieve excessive pressure. The ideal instrument should function in such a manner that it would completely empty the bladder at any desired time interval or pressure condition. Furthermore, such an instrument to be fully practical must be self-regulatory, requiring minimal professional attention.

With these basic problems in mind, detailed experimentation has been applied toward the development of an instrument which would function to eliminate these problems.

It can now be stated that after sufficient hospital trial the instrument described below fulfills these requirements of complete elimination, pressure and time interval control, and practical usability.

This instrument can

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