Method for diagnosis of stress incontinence in women
US4612939A · kind A · utility
Inventor
Key dates
| Filing date | Oct 15, 1984 |
| Grant date | Sep 23, 1986 |
| Priority date | — |
| Expiry date | Oct 15, 2004 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/205
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A tube is passed through the urethra into the bladder (indicated by liquid flow from the bladder to the distal end of the tube) and then withdrawn slightly so that its proximal end is within the urethra (indicated by flow cessation). The tube is anchored in that position by sliding a hygroscopic bougie up the outside of the tube and just inside the urethral meatus, and then spraying the bougie with water to expand it against the urethral wall. A proximal enlargement in the tube also aids anchoring. A conical sheath is used to expand the meatus, to aid in inserting the tube and bougie. The patient holds a handle on the sheath to facilitate access to the meatus. With the tube anchored, the patient undergoes stress of the type which produces the incontinence to be diagnosed, and the diagnostician observes the timing of liquid discharge from the urethra through the tube, relative to stress incidence. From this relative timing the type of incontinence is inferred. A second tube may be added for simultaneous measurement of bladder pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.