Urinary incontinence prostheses

• US 4,857,041 A
• Filed: 05/07/1987
• Issued: 08/15/1989
• Est. Priority Date: 05/07/1986
• Status: Expired due to Fees

• Current Assignee: British Technology Group Ltd. (Boston Scientific Corporation)
• Original Assignee: National Research Development Corporation
• Inventors: Brown, Malcolm C., Sutherst, John R., Annis, David
• Primary Examiner(s): HINDENBURG, MAX F
• Application Number:
  US07/046,690
• Time in Patent Office: 831 Days
• Field of Search: 128/1 R, 128/630, 128/DIG. 25, 128/830, 128/834, 128/836, 128/837, 604/367, 604/368, 604/370, 623/11, 623/12, 600/29, 600/30
• US Class Current: 600/30
• CPC Class Codes: A61B 2017/00805 Treatment of female stress urinary incontinence
• CPC Class Codes: A61F 2/0036 implantable A61F2/0018 takes precedence
• CPC Class Codes: Y10S 128/25 Artificial sphincters and devices for controlling urinary incontinence

Abstract

A prosthetic device (10) suitable for use in the treatment of stress incontinence in women by location as a cuff around the urethra, to elevate the bladder following prolapse, comprises a body (11) composed predominantly of a cross-linked synthetic polymer hydrogel having a water content of the order of 90%, and preferably about 95%, by weight. The hydrogel can be homogeneous through the body but in this event the body suitably has a local reinforcement (12), such as by embedded plastics material mesh, in at least one relatively small edge portion to enhance its tear resistance in relation to sutures (13) passed therethrough. The body is suitably of kidney shape having dimensional proportions of approximately 5×3×1. cms.

Claims

1. A method of treating female urinary incontinence occurring due to prolapse of the bladder, comprising:

elevating the bladder from the pelvic floor by locating adjacent to the proximal urethra below the bladder a body composed predominantly of cross-linked synthetic polymer hydrogel material having a water content of the order of 90% by weight at least over the exterior surface of said body.

2. The method according to claim 1 which comprises locating said body as a cuff which at least partly embraces the urethra, and tethering said body with sutures to the adjacent para-urethral tissues.

3. The method according to claim 1 which comprises locating said body as a cuff which at least partly embraces the urethra, and tethering said body with sutures to at least one of the pelvic ligaments or the rectal sheath.