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OTT-CSIC-> Catalogue -> Technologies by Areas -> Biology / Biomedicine ->
BIO069- Medical prosthesis for the stress urinary incontinence.
ICMA/CSIC, Spain, and the Hospital “Lozano Blesa”, Spain, have developed a medical prosthesis, silicone based, for the stress urinary incontinence. Advantages: Full automatism: the patient does not need to manipulate any mechanism. The device close the urethra selectively only in the moments of height abdominal pressure without the patient intervention. Simplicity: its design allows a simple manufacturing, a simple implantation and reliability.

This group is looking for a manufacturer and companies interested in licensing.
Specification sheet:
DESCRIPTION

The patented device surrounds the urethra in patients suffering stress urinary incontinence in order to avoid such incontinence. It works by facilitating the direct transmission of the abdominal pressure to the urethra. It looks like a bag of silicone filled of saline solution with an abdominal part in the abdominal cavity and another part surrounding the urethra.

Design: a part of the bag, filled of saline solution, surrounds the urethra as a ribbon, similar as a cuff. The two extremes of the ribbon are a prolongation of the device placed inside the abdomen. The device is compressible but not able to be strained beyond a maximum. The urethral part is not able to be strained in the outside but become easily distorted in the inside. When the system is with the saline, without pressure, the cuff is near to be empty due to the elasticity of the inside. When a pressure is applied over the abdominal parts, such pressure is distributed to every wall of the device, including the inside of the urethral part, closing the urethra.

Working: without abdominal pressure, the ribbon lets a hole enough to the urethra. Under pressure the saline stayed in the abdominal part run to the urethral part, which is partially outside of the abdominal cavities. The hole inside the cuff trend to close the urethra, making equal the pressure in the urethra as in the abdominal cavities and in the bladder, avoiding the escape of urine.

Advantages: the efficacy of a silicone inflatable cuff to close the urethra avoiding the escape of urine is well known. Since the escape in the majorities of patients occurs only some times in the day, they do not need a permanent pressured cuff. Thus the advantage of the device here described is that works only in the moments of maximal pressure and does not need any intervention of the patient, neither for urinate nor for holding. The absence of a permanent pressure avoids a scar for decubitus over the urethra. Since there is not valves neither joining is unlikely to occur failures or leak of saline. There are not palpable components under the skin. Manufacturing can be easy and cheap.

INNOVATIVE ASPECTS

The main originality of the present prosthesis is:

- It works only in the moments of maximal pressure and does not need any intervention of the patient, neither for urinate nor for holding. The absence of a permanent pressure avoids a scar for decubitus over the urethra.

- Since there is not valves neither joining is unlikely to occur failures or leak of saline. There are not palpable components under the skin.

- Manufacturing can be easy and cheap.

COMPETITIVE ADVANTAGES

Great medical efficacy, low cost and easy to implant, needing only 30 minutes of surgery an less than 12 hours in the hospital. The pathology is widely distributed among women older than 40 years.

KEYWORDS

Medicine, Human Health (006001),
Diseases (006001007),
Others: Female stress incontinence, urethra-constricting device

PATENT

200302987, applied for at 17/12/2003

CONTACT

Elena Segura Segura
email: esegura@dicar.csic.es
phone: +34 976 716020

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