RU2713313C2 - Antireflux valve - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: invention relates to medicine. Antireflux valve for surgical management of children with congenital diseases of vesicoureteral refluxes 3…5 degrees, megoureter and postoperative recurrences according to Cohen, Leach-Gregoire, Politano-Leadbetter and Barry method includes a bushing with smaller diameter and a bushing with larger diameter, a valve petal arranged on the end of the antireflux valve facing the urinary bladder and attached by means of a loop, and a spring which is adjustable to open the valve based on the age of the patient and fixed between the sleeve with a smaller diameter and a petal by hooks. Bushing with smaller diameter is made with possibility of installation in the distal end of the ureter, and the bushing with larger diameter - with the possibility of installation into the bladder wall with suturing through the holes made in the valve. Petal is made of silver, and spring is made from beryllium bronze.

EFFECT: technical result consists in providing an obstacle to back discharge of urine from the bladder cavity into the upper urinary tract.

1 cl, 1 dwg

Description

1 Technical field

The invention relates to the field of traditional medicine.

2 Disclosure of the invention

Bladder-ureter reflux (PMR) is one of the most common lower urinary tract diseases in children. In recent years, an increasing number of urologists have come to the conclusion that MTCT is one of the most frequent forms of urodynamic disorders and the development of chronic pyelonephritis in children (35-68%). It was established [1, 2] that PMR is diagnosed in 49% of children under 1 year of age, 29% in the period from 1 to 12 years, and only 4.4% in older children. A decrease in the frequency of MTCT in older children is associated with the formation of an antireflux mechanism, and primarily with an increase in the length of the intramural ureter.

PMR has long attracted the attention of many researchers. As early as 1883, W. Semblinon experimentally created a rabbit reflux model. In 1893, M. Pozzi first reported that he observed PMR in humans. More than 80 methods of operations have been proposed, but there are still no highly effective methods of treating this disease. Postoperative relapses are observed in 20% of cases.

The proposed antireflux valve is mechanical, similar to heart valves. It can also be installed in the urethra of a woman with urinary incontinence.

The purpose of the antireflux valve is to prevent the return of urine from the cavity of the bladder into the upper urinary tract and the normalization of the pathologically expanded ureter and renal pelvis.

The antireflux valve (Figure 1) is intended for surgical treatment of children with congenital diseases of vesicoureteral reflux of 3 ... 5 degrees, megaureter and postoperative relapse according to the method of Cohen, Leach-Gregoire, Politano-Ledbetter and Barry, including a sleeve with a smaller diameter. A sleeve with a large diameter is put on it with a petal made of silver, placed on the end of the antireflux valve, facing the bladder and secured with a loop. A spring made of beryllium bronze, made with the possibility of regulation to open the valve, taking into account the age of the patient and fixed between the sleeve with a smaller diameter and the lobe using hooks. A sleeve with a smaller diameter is made with the possibility of installation in the distal end of the ureter, and a sleeve with a large diameter - with the possibility of installation in the wall of the bladder with suturing through 8 holes. department w.

Operation - implantation of a mechanical antireflux valve consists of installing it in the cavity of the distal portion of the mobilized ureter with suturing between the ureter and the bladder wall with 4 ligatures (threads), previously made from 8 holes 5 of the valve, facing the smaller diameter of the sleeve into the distal end of the mobilized ureter. The other end of the sleeve is installed in the wall of the bladder, are also strengthened and sutured by ligatures. At the same time, the end of the valve with the petal should be facing toward the cavity of the bladder.

It is well known that when the pressure inside the bladder reaches 15 mm. water, there is a urge to urinate. The spring must be regulated, depending on the age of the patient, from 5 to 20 mm. water column

3 Brief description of the drawing (characteristic)

The antireflux valve consists of a sleeve 1 4 mm high with a large diameter of 10.5 mm, 1 mm thick and 8 holes 1.5 mm in diameter, worn on a sleeve 2 7 mm high with a smaller diameter 8.5 mm and a thickness of 1 mm to a depth of 1 mm from the side of the petal 3, providing its free opening and well soldered in a circle. The petal is soldered to the sleeve with a smaller diameter using a loop 6 with an external diameter of 3.0 mm and opens with a spring 7 with an external diameter of 2.0 mm, which is attached to the lower sleeve and to the inside of the petal using sealed hooks 8

4 Reliability indicators

4.1 Material of bushings, tabs, hinges, hooks, soldering: silver

4.2 Spring material: Beryllium bronze BrB2.

5 Safety instructions

In the invention, the materials used are safe for the human body.

Literature:

Lopatkin N.A., Pugachev A.G. Bladder-ureter reflux. M., 1990, 119 p.

Vishnevsky E.L. Overactive bladder in children // Actual issues of diagnosis and treatment of urological diseases in adults and children. Tyumen, 2005.S. 324.

Claims (1)

Antireflux valve for surgical treatment of children with congenital diseases of vesicoureteral reflux of 3 ... 5 degrees, megaureter and postoperative relapse according to the method of Cohen, Leach-Gregoire, Politano-Ledbetter and Barry, characterized in that it includes a sleeve with a smaller diameter and worn on it has a sleeve with a large diameter, a valve petal located on the end of the antireflux valve facing the bladder, and secured with a loop, and a spring that is adjustable to open a valve, taking into account the age of the patient and fixed between the sleeve with a smaller diameter and the lobe using hooks, the sleeve with a smaller diameter is made with the possibility of installation in the distal end of the ureter, and the sleeve with a large diameter with the possibility of installation in the wall of the bladder with suturing through openings, made in an antireflux valve, while the petal is made of silver, and the spring is made of beryllium bronze.

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