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A 24-hour feasibility study of intraurethral valved catheter for bladder management in males with spinal cord injury

Bradley G. Orris, MD, et al.

Figure. Intraurethral valved catheter, Surinate. Malecot tip is shown in upper right corner and magnetic valve in lower left with safety tether attached.

Improvements are needed in bladder management methods following spinal cord injury. This study evaluated the feasibility of a new type of internal urethral catheter that only spans the part of the urethra that makes bladder emptying difficult and that contains a magnetically actuated valve to allow for emptying the bladder. With the current design of the product, meeting the objectives is not feasible based on the results. However, this feasibility study provided important information that will help guide design improvements for intended applications, including an adequate draining rate with the external magnet placed on the perineum and reliable implantation and extraction, as well as facilitate independent patient use.


Volume 45 Number 4, 2008
   Pages 639 — 646

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