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One-piece urethra hanging strip

A sling and urethra technology, which is applied in the field of medical devices for treating women's stress urinary incontinence, can solve the problems of stabbing the bladder, long puncture path, and large damage, and achieves reduced trauma, shortened puncture path, and good biocompatibility. Effect

Active Publication Date: 2009-04-01
SUMMIT GD BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And rely on the 15-18cm long curved puncture needle traction, pull the sling to the abdominal wall, the puncture path is too long, the damage is greater, once the operation is not done properly, the bladder may be stabbed

Method used

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  • One-piece urethra hanging strip
  • One-piece urethra hanging strip
  • One-piece urethra hanging strip

Examples

Experimental program
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Embodiment 1

[0024] Take fresh membrane tissue (including fat omentum, diaphragm, pericardium) and tendons of pigs or cattle, soak them in 0.1% bromogeramine solution for 30 minutes, take them out, remove impurities such as fat and muscle attached, and wash them; Put it into the degreasing device, use isoamyl isobutyrate as an organic solvent to extract the fat existing in the membrane and tendon tissue, take it out, and wash it; put it into the decellularization reactor, add pepsin and trypsin, the concentration is 120mg / liter, enzymatic hydrolysis for 4-16 hours, take it out, and wash; put it into an epoxy fixation reactor, put tert-hexane oxide at a concentration of 0.1N-1.0N, let it react for 24-96 hours, take it out, wash it Clean; put it into the antigen removal reactor, first add the nucleophilic reagent of valeryl chloride with a concentration of 1%-10%, make the reaction for 4-12 hours, neutralize the excess acid chloride, wash, and then add the nucleophile with a concentration o...

Embodiment 2

[0028] Such as image 3 As shown, the difference between this embodiment and Embodiment 1 is that this example is made of medical polypropylene material by the following method: the medical polypropylene is processed into a film or a braided mesh, and it is cut into a width of 10mm, a length of 100mm, two The sling 1 with the T-shaped tie at the end will punch holes on the band for the film band. The puncture fixing head 2 as described in Example 1 is formed by injection molding or molding, the suspension belt 1 is wrapped around the groove at the tail of the puncture fixing head 2, and it is welded and fixed by ultrasonic welding to obtain the following: image 3 Shown product, pack, sterilize, get final product.

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Abstract

The invention discloses a novel integration urine gallus structure and a manufacturing method thereof. The integration urine gallus structure comprises a sling and a puncture fixed head which is fixed on two ends of the sling. The sling is a porous membrane belt or a knit belt with the width of 5-20 mm or and the length of 40-120 mm. The puncture fixed head is a warhead body with an agnail which only can move forward and can not back up. The puncture fixed head is fixed on a position which the puncture fixed head punctures, in addition, plays a part in puncturing and fixing. No matter the sling or the puncture fixed head is prepared by the following technique: animal tissues are taken as raw material, treated by biological methods such as epoxy cross-linking fixation, antigen on multiaspect, mechanics modification, inducement activity modification and the like, and then processed and molded by the special design. The structure has high stability, good biocompatibility, does not have untoward effect caused by foreign matter after being implanted, can grow together with organism of patients, induces antilogous fibrous structure to grow, finally, forms the self-organizing suspension and fixation function and has the advantages of convenient use, little wound, good curing effect.

Description

technical field [0001] The invention relates to a medical device for treating women's stress urinary incontinence, which belongs to implantable medical devices. Background technique [0002] Women's stress urinary incontinence is a common disease of middle-aged and elderly women, and the incidence rate is more than 30% among women over 50 years old. At present, the commonly used surgical treatment method is urethral and bladder neck suspension. A urethral sling. Most of these urethral straps are made of synthetic materials, with complicated structures and complicated operations. Some are made into a knapsack style, some are made into a long belt style, and some are fixed by surgical sutures. Some do not need to be sutured, so they have to be fixed by the side thorns of the sling. For this reason, the side thorns of the sling should be made hard and sharp, so that they can easily penetrate into the vagina or bladder. And it needs to be pulled by a curved puncture needle wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/00A61F2/02A61L31/04
CPCA61L2430/40A61L31/005A61F2/0045A61B2017/00805
Inventor 童晓文徐斌徐国风
Owner SUMMIT GD BIOTECH
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