SU1364351A1 - Arrangement for expanding esophageal stenosis - Google Patents

Abstract

To provide adjustable length and metered pressure on the affected part of the esophagus, the device consists of a hollow elastic tube 1, on which additional rigid tubes 2, 3 are put with the possibility of moving along the tube 1 in the axial direction. Inside the tube 1 passes the thread guide 6. Tube 1 is conducted through the mouth, esophagus, stomach and through the gastrostomy tube outside. The tubes 2 and 3 are moved along the tube -1 in the opposite direction up to the stop in the outer edges of the constriction zone. When pumping fluid expands the portion of tube 1 in accordance with the length of the narrowing zone of the esophagus. 1 hp f-ly. 1 il.

Description

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This invention relates to medical devices used to expand the Cicatricial stenosis of the esophagus.

The purpose of the invention is to provide adjustable length and metered pressure on the affected part of the esophagus.

The drawing shows the device, the overall appearance.

The device consists of a hollow elastic tube 1, on which additional rigid tubes 2 and 3 are put, which can be moved along the tube 1 in the axial direction one relative to another. At one end of the tube 1 a fitting 4 is attached for connection to the pump, at the other end there is a tip 5. Inside the tube 1 there passes a thread guide 6. As the thread guide 6, a fishing line is used which is designed to prevent the extension of tube 1.

The floor is an elastic tube 1, 80-90 cm long, made of silicone. Depending on the diameter of the esophageal lumen, at the site of constriction and on the patient's age, there are four tubes with outer diameters of 3.8; five; 7 and 8 mm and with a wall thickness of 1 mm.

. Additional rigid tubes 2 and 3. Made of standard PVC tubes. The length of the tubes is 30-40 cm. The edges of the tubes are rounded.

The device is applied as follows.

By conventional methods, the degree of narrowing of the esophagus in a given patient is determined. Then the floor is taken by an elastic tube with an outer diameter smaller than the diameter of the esophagus at the point of greatest constriction. This ensures the unimpeded introduction of the tube into the esophagus.

The end of the thread, which stands out of the patient's mouth, is attached to the loop of the fishing line. When sweating over the other end of the filament, protruding from the opening of the gastrostomy, the end of tube 1 passes through the mouth, esophagus, stomach and out through the opening of the gastrostomy.

An additional rigid tube 2 is put on one end of the tube 1, and an additional rigid tube 3 is put on the other end.

in the opposite direction up to the stop of their ends and into the outer edges of the zone of constriction. Thus, the ability to expand is retained only at the portion of the hollow elastic tube 1 located in the zone of constriction, and thereby an individual correspondence of the expanding portion of the tube 1 with the length of the narrowed portion is achieved, and hence the uniform distribution of the expansion force over time. the entire inner surface of the narrowed portion of the esophagus.

Excess tube 1 is drawn into tube 2.

An additional rigid tube 3 is clamped, which simultaneously squeezes tubes 1 and 3, as well as a fishing line.

The fitting 4 is connected to the pump. The pump is turned on. When pumping fluid, the tube 1 expands in proportion to the length of the narrowing zone of the esophagus.

The criteria for controlling the rate of expansion are the fluid pressure determined by the pressure gauge on the pump and the volume of fluid introduced into the device.

 The uniform distribution of the expanding force — within the narrowed canal of the esophagus, has a more effective and safe effect on the altered esophageal walls. The design of the device allows this condition to be observed in the treatment of patients of all age groups with different lengths of contractions, and also makes it possible to adapt to contractions, the length of which varies continuously during the treatment process.

As a result, the treatment time is reduced by 2-2j5 times. The number of complications decreases, which also contributes to a reduction in the duration of treatment.

The ability of the hollow elastic tube to expand throughout its entirety and localization with additional rigid tubes of any part of the narrowing zone greatly simplifies and shortens the procedure of inserting the device into the esophagus, eliminates.

In order to block the tube 1, which additionally controls the perforation of the metorrhea, throughout its entirety, with the exception of the area located in the lumen of the narrowing zone of the esophagus, tubes 2 and 3 are advanced along tube 1

Dov for the correctness of its location in the esophagus. This reduces the load on the patient, reduces the cost of treatment. Fluid can be pumped into a hollow elastic tube under high pressure. This provides for the expansion of any Cicatricial contractions, however coarse they may be. Due to this, indications for surgical treatment of advanced forms of esophageal stenoses are sharply limited.

Claims (2)

Invention Formula . 1. A device for expanding the narrowings of the esophagus, containing a filament-strap and a hollow tube placed on it, characterized in that. that, in order to provide adjustable length and metered pressure on the affected part of the esophagus, the device is equipped with two additional tubes installed on the hollow tube with the possibility of free movement, while the floor is elastic and the additional tubes are rigid. 2. The device according to claim 1, characterized in that the floor tube has a fitting for connection to the pump, with the thread guide attached to the fitting.