Patch for replacement of a portion of bladder wall following partial cystectomy

A bladder wall, part of the technology, applied in the field of patches, can solve problems such as failure, the patch cannot withstand urine scaling, infection, etc.

Inactive Publication Date: 2008-11-12
安东尼奥桑布塞蒂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is practically impossible to completely remove intestinal mucus from the neobladder during surgery, leading to possible infection
[0005] and these gut wall patches have a shorter average lifespan
These patches do not actually survive beyond a ten-year lifespan due to the wear and tear of the gut wall which wears out in less than a period of two to three years
[0006] Various attempts to make synthetic patches have been unsuccessful, mainly because the inner surfaces of the patch cannot withstand fouling by urine

Method used

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  • Patch for replacement of a portion of bladder wall following partial cystectomy
  • Patch for replacement of a portion of bladder wall following partial cystectomy
  • Patch for replacement of a portion of bladder wall following partial cystectomy

Examples

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Embodiment Construction

[0021] now refer to Figure 1-3 , to describe the patch generally denoted by reference numeral 1 according to the first embodiment of the present invention. The patch 1 having a thickness of approximately 600 microns is made of a multi-layer flexible silicone film ( image 3 ) in order to be sufficiently elastic to withstand expansion due to expansion and contraction of the bladder.

[0022] The silicone resin used can be made, for example, of a copolymer of dimethyl and metavinyl siloxane, reinforced with anhydrous silicic acid or silicon. Preferably medical grade silicone is used, such as known under the type MED 4735 TM and medical silicone marketed by Nusil Technology.

[0023] The membrane 2 of the prosthesis 1 preferably consists of twenty layers of silicone, each layer having a thickness of about 30 micrometers.

[0024] The layers of silicone resin are stacked in a semi-liquid state and the laminated membrane 2 is then placed in an oven and vulcanized at a temperat...

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Abstract

A patch (1 ; 100) is described for replacement of a portion of bladder wall, following partial cystectomy. The patch (1 ; 100) comprises a multi-layered membrane (2) of soft silicone, with a thickness of about 600 microns so as to be sufficiently elastic to be able to withstand the dilatations due to expansion and deflation of the bladder.

Description

technical field [0001] The present invention relates to a patch for replacing a portion of the bladder wall after a partial cystectomy. Background technique [0002] As is well known, when a part of a patient's bladder is eroded by severe pathology such as a local malignancy, this part of the bladder must be removed to prevent the disease from spreading to the entire bladder. Removal of this portion of the bladder creates a hole in the bladder that is closed by a patch sutured to the perimeter of the bladder wall defining the hole. [0003] These patches are taken from the patient's everted bowel. That is, the part of the bladder infected with the malignancy is removed during surgery. Next, a patch obtained by dissecting the patient's bowel wall in situ is removed, taking care to wash and clean it carefully to eliminate any source of infection, primarily due to mucus formation in the bowel. Finally, the patch is sutured to the bladder wall to close the hole left by the re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/04
CPCA61L27/18A61F2/0063A61L2430/22A61F2/042C08L83/04
Inventor 彼得罗·科尔泰利尼
Owner 安东尼奥桑布塞蒂
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