RU2234339C1 - Apparatus for drainage of common bile duct - Google Patents

Abstract

FIELD: medicine, in particular, equipment used for rehabilitation of patients subjected to operation with regard to cholelithiasis and complications thereof.

SUBSTANCE: apparatus has driving drainage pipe and discharge drainage pipe, which are connected with one another via elastic air and water impermeable balloon enclosed in hermetically sealed casing fitted with air supply and intake valves. Pipes are made detachable. Casing has inlet and outlet ends. Driving pipe is connected to inlet connecting pipe and discharge pipe is connected to outlet connecting pipe. Valve is made in the form of plug adapted for puncturing by syringe needle. Plug is made from rubber.

EFFECT: increased efficiency in draining of biliary tract at predetermined pressure in common bile duct.

4 cl, 1 dwg

Description

The invention relates to medicine and can be used for the rehabilitation of patients operated on for cholelithiasis and its complications.

We have not found any special devices for drainage of the common bile duct. It is known to use a conventional silicone tube, one end of which is inserted into the common bile duct, and the other through a puncture in the anterior abdominal wall is brought out and placed in a reservoir for collecting bile. Currently, the common bile duct is most often drained by placing a drainage tube into it through the stump of the cystic duct, or through the choledochotomy opening (P.S. Vetshev, O.S. Shkrob, D.G. Beltsevich. Gallstone disease. M. 1998 . 160s.).

The disadvantage of the proposed methods using drainage tubes is uncontrolled loss of bile, which leads to a number of negative consequences. This is a violation of the intestines, the development of liver failure, the lack of reliable information about the physiological state of the large duodenal papilla.

The essence of the invention lies in the fact that a device for drainage of the common bile duct, including the leading and discharging removable drainage tubes, hermetically connected to each other by an elastic air and waterproof balloon, enclosed in a rigid sealed enclosure equipped with a valve for supplying and taking air.

Another difference is that the housing has inlet and outlet fittings, while a lead-in tube is connected to the inlet and a outlet tube is connected to the outlet.

Another difference is that the valve is made in the form of a stopper for puncture with a syringe needle.

Another difference is that the cork is made of rubber.

This design makes it possible to drain the biliary tract at a certain pressure level in the common bile duct.

The essence of the device for drainage of the common bile duct is illustrated by the drawing, where its general view is given. The device contains a rigid sealed housing 1, not subject to deformation when we create the pressure inside it, made of plastic. The housing 1 is equipped with a valve 2 in the form of a rubber stopper for supplying and taking air from the cavity 3 of the housing 1. The housing 1 has an inlet 4 and an outlet 5 fittings located strictly opposite each other, tightly interconnected (using glue and winding) inside the housing 1 elastic balloon 6 made of latex rubber. A removable lead drain pipe 7 is connected to the output nozzle 4, a drain drain tube 8 is connected to the output nozzle 5, the other end of which is placed in the bile collecting tank 9.

Before using the device, adjustment is necessary, which is done as follows.

A transparent tube with a millimeter scale deposited on it is connected to the input fitting 4. Liquid (water or bile) is poured into it. Through the inlet valve 2, air is supplied to the cavity 3 of the housing 1 by puncture with a syringe needle, the elastic balloon 6 is compressed and the outflow of bile or water through the outlet nozzle 5 stops (the dotted line shows the compression state of the balloon 6).

By adjusting the pressure in the cavity 3 of the housing 1 using a syringe, by supplying or taking air through the inlet valve 2, it is ensured that the liquid level in the transparent tube with a measuring scale stops at a level corresponding to the normal physiological pressure in the common bile duct, measured in millimeters of water (norm 80-140 mm of water. Art.).

The device is ready to go. The lead drainage tube 7 (pre-intraoperatively installed in the common bile duct) is connected to the inlet 4. The outlet drainage tube 8 is connected to the outlet 5 and placed in the reservoir to collect bile 9. If the pressure in the common bile duct exceeds the level set by us in the device there is a discharge of bile outward, at a pressure below the level set by us - discharge of bile does not occur.

Studies have shown that the use of the proposed device for drainage of the common bile duct provides the following advantages:

1) preservation of the physiological passage of bile with adequate drainage;

2) prevention of liver failure,

3) early restoration of bowel function;

4) economic benefit, since at low cost the average hospital stay of patients is reduced;

5) can be used in any city or district hospital, without requiring special training of the surgeon.

Claims (4)

1. Device for drainage of the common bile duct, including a drainage tube, characterized in that the tube is made leading, while the device further comprises a discharge drainage tube, and the lead tube and the discharge tube are hermetically connected to each other by an elastic air and waterproof cylinder enclosed in a sealed the case is equipped with a valve for supplying and taking air, and the tubes are removable. 2. The device according to claim 1, characterized in that the housing has an inlet and outlet fitting, while a lead-in tube is connected to the inlet and the outlet tube is connected to the outlet. 3. The device according to claim 1, characterized in that the valve is made in the form of a stopper for puncture with a syringe needle. 4. The device according to claim 3, characterized in that the cork is made of rubber.