RU60864U1 - CATHETER FOR EXTERNAL-INTERNAL DRAINING OF THE BILENTIAL WAYS - Google Patents

Abstract

The utility model relates to medicine, in particular abdominal surgery, and can be used to decompress the biliary tract in patients with obstructive jaundice and concomitant stenosis of the output stomach or proximal duodenum. The objective of the utility model is to develop a catheter design for decompression of the biliary tract in patients with obstructive jaundice and with concomitant stenosis of the output section of the stomach or proximal part of the duodenum, which helps prevent enteric preparations from entering the biliary tract. The problem is solved in that the catheter for external and internal drainage of the biliary tract, made in the form of a drainage tube with a curved distal end and holes located in three planes, over 1/3 of its distal end, is additionally equipped with a second tube, which is in common a rod with a first tube, the second having holes in the distal part of the tube and the first hole is removed from the distal end of the catheter by a distance equal to 1/10 of its total length. The claimed utility model, in contrast to the prototype, allows performing in patients with obstructive jaundice and concomitant stenosis of the outlet stomach and proximal duodenum not only decompression of the biliary tract, but also enteral administration of drugs.

Description

The utility model relates to medicine, in particular abdominal surgery, and can be used to decompress the biliary tract in patients with obstructive jaundice and concomitant stenosis of the output stomach or proximal duodenum.

Currently, widely used catheters for decompression of the biliary tract in patients with obstructive jaundice are single-lumen drainage tubes with various distal ends (Ivshin V.G., Yakunin A.Yu., Lukichev OD

Percutaneous diagnostic and biliary interventions in patients with obstructive jaundice. - Tula, 2000 .-- 312 p .; Borisov A.E., Borisova N.A., Verkhovsky B.C. Endobiliary interventions in the treatment of obstructive jaundice. - St. Petersburg, 1997.)

As a prototype for the closest technical essence, we have chosen the design of a catheter for decompression of the biliary tract in patients with obstructive jaundice, made in the form of a drainage tube with a curved distal end of the type of "pig tail" and holes located in three planes, for 1/3 parts of its distal part. (Ivshin V.G., Yakunin A.Yu., Lukichev O.D. Percutaneous diagnostic and bile duct interventions in patients with obstructive jaundice. - Tula, 2000. - 312 p.).

With concomitant stenosis of the output section of the stomach or proximal part of the duodenum, there is a need to introduce preparations for enteral nutrition below the site of stenosis of the gastrointestinal tract, which cannot be done using existing catheter designs (analog design and prototype design) due to the risk of ingestion preparations into the biliary tract through openings designed to drain the biliary tract, which can provoke cholangitis.

The objective of the utility model is to develop a catheter design for decompression of the biliary tract in patients with obstructive jaundice and with concomitant stenosis of the output section of the stomach or proximal part of the duodenum, which helps prevent enteric preparations from entering the biliary tract.

The problem is solved in that the catheter for external-internal drainage of the biliary tract, made in the form

a drainage tube with a bent distal end and holes located in three planes in the distal part of the channel in a section not exceeding 1/3 of the channel length, is additionally equipped with a second pipe located in a common shaft with the first pipe, the second having holes in the distal part of the pipe and wherein the first hole is removed from the distal end of the catheter by a distance equal to 1/10 of its total length.

Distinctive essential features of the claimed utility model are:

1. Additional supply of a catheter with a second tube located in a common shaft with the first;

The presence of an additional tube allows the administration of drugs for enteral nutrition through it.

2. The second tube has holes in its distal part and the first hole is removed from the distal end of the catheter by a distance equal to 1/10 of its total length;

The location of the holes only in the distal part of the second tube allows you to prevent the ingestion of drugs for enteral nutrition in the biliary tract, since this part of the catheter is located in the lumen of the duodenum.

Figure 1 shows a General view of the catheter, where:

1 - the first drainage tube;

2 - the second drainage tube;

3 - holes on the first drainage tube;

4 - holes on the second drainage tube.

The device operates as follows:

The catheter is inserted percutaneous transhepatic access. After percutaneous transhepatic cholangiogiography is performed, under the control of fluoroscopy, lobar hepatic puncture is performed

duct needle with mandrin. After removal of the mandrel, a conductor is introduced into the lumen of the bile ducts. A catheter is inserted through the conductor into the lumen of the bile ducts and further through the common bile duct and the site of stenosis to the lumen of the duodenum. The use of the device is possible in the case when it is possible to guide the conductor through the site of occlusion of the biliary tract into the duodenum. The device is fixed in the biliary tract and duodenum so that the holes of the first drainage tube (3) are located above and below the occlusion of the biliary tract, and the holes of the second tube (4) only at the level of the lumen of the duodenum. The first drainage tube (1) serves to decompress the biliary tract. Through the second drainage tube (2), enteral administration of solutions is carried out. Enteral administration of drugs is more physiological than parenteral correction of water-electrolyte disturbances associated with stenosis of the output section of the stomach. The operation scheme of the device is presented in figure 2.

The device is made of polyurethane.

Catheter manufacturing techniques are known and used for the manufacture of two-channel catheters for other purposes.

The claimed utility model, in contrast to the prototype, allows performing in patients with obstructive jaundice and concomitant stenosis of the outlet stomach and proximal duodenum not only decompression of the biliary tract, but also enteral administration of drugs.

Claims (1)

A catheter for external and internal drainage of the biliary tract, made in the form of a drainage tube with a curved distal end and holes located in three planes in the distal part of the canal in a section not exceeding 1/3 of the length of the canal, characterized in that the catheter is additionally provided with a second tube, located in a common rod with the first tube, and the second has holes in its distal part and the first hole is removed from the distal end of the catheter by a distance equal to 1/10 of its total length.