CN103536997A - Double-cavity nose bile drainage tube - Google Patents

Abstract

Double-chamber nasobiliary drainage tube, which belongs to medical equipment, includes a head, a body and accessories. The head includes an external drainage tube and an internal drainage tube; one end of the external drainage tube is curved in an arc shape, and the other end is connected to the body The end of the curved part of the external drainage pipe is provided with a straight hole, and the side of the curved part of the external drainage pipe is provided with two sets of side holes for the external drainage pipe; the upper end of the internal drainage pipe is provided with an upper opening of the internal drainage pipe, and The lower end is provided with the lower opening of the internal drainage pipe, and the upper part of the side wall of the internal drainage pipe is provided with four side holes of the internal drainage pipe; the accessories include external joints and auxiliary devices. The invention can not only drain bile externally but also internally drain bile, avoid excessive loss of bile, and is beneficial to the rehabilitation of diseases.

Description

Double lumen nasobiliary drainage tube

technical field

The invention relates to the technical field of medical devices, in particular to a double-chamber nasobiliary drainage tube capable of draining bile into the intestinal cavity and out of the body.

Background technique

Acute obstructive suppurative cholangitis is a common acute and severe disease in the Department of Gastroenterology. For the above-mentioned diseases, relieving biliary obstruction as soon as possible and draining suppurative bile are the primary treatment measures. Currently, endoscopic nasobiliary drainage (ENBD) is the preferred treatment.

ENBD is a simple and effective way of external bile drainage. It uses endoscopic technology to put the front end of the nasobiliary duct into the biliary tract, and the other end is led out from the nose. The infectious bile in the bile duct can be drained through the nasobiliary drainage tube to relieve biliary obstruction. , subside jaundice, control inflammation, and through the nasobiliary drainage tube, repeated washing and drug infusion can effectively improve the patient's condition.

With the updating of technology, the nasobiliary drainage tube currently used in clinical practice is no longer easy to detach from the bile duct, and the drainage effect is obvious. But these nasobiliary drainage tubes can only play the role of bile external drainage, that is, bile is drained from the bile duct to the outside of the body. Bile contains a lot of beneficial substances such as bile salts and phospholipids. Excessive loss of bile can easily lead to water and electrolyte balance disorders and malnutrition. For patients with biliary obstruction or elderly patients with suppurative gallstones and infection, excessive external drainage of bile leads to a large loss of bile, which is not conducive to the recovery of the disease.

Contents of the invention

The purpose of the present invention is to provide a double-chamber nasobiliary drainage tube, which can drain bile externally or internally.

The technical solution adopted by the present invention to solve the technical problems is: double-chamber nasobiliary drainage tube, including the main body of the drainage tube and accessories, the main body of the drainage tube includes a head and a body, and the head is a double-chamber The head includes an external drainage pipe and an internal drainage pipe; one end of the external drainage pipe is curved in an arc shape, the other end of the external drainage pipe is connected with the body, and a straight hole is provided at the end of the curved part of the external drainage pipe. The side of the curved part is provided with two sets of side holes of the external drainage pipe; Four internal drainage pipe side holes; the accessories include external joints and auxiliary devices.

The outer joint includes a joint pipe, a gasket and a plug. The structure of the joint pipe is provided with a tapered pipe at one end of a cylindrical pipe. The plug is matched with the cylindrical pipe part of the joint pipe, and the gasket Located between the adapter tube and the plug.

The auxiliary device is a round tube, and the two ends of the auxiliary device are symmetrically provided with funnel-shaped structures that diffuse outward.

The two groups of side holes of the external drainage pipes are staggered from each other, and the number of side holes of each group of external drainage pipes is four and arranged side by side.

The upper opening of the inner drainage pipe and the lower opening of the inner drainage pipe are oblique to the outer drainage pipe.

The total length of the main body of the drainage tube is 200 cm, the outer diameter of the main body of the drainage tube is 3.3 mm, the length of the head is 15 cm, and the length of the body is 185 cm. The inner diameters of the outer drainage pipe and the inner drainage pipe are both 1.6 mm.

The beneficial effects of the present invention are:

1. The structure is simple and easy to use. The head is bent in a pigtail shape in a natural state, and the drainage tube is not easy to shift or come out when it is placed or left in place.

2. The head of the nasobiliary drainage tube is a double-lumen tube. After being placed, bile can be drained out of the body along the external drainage tube, and can also flow into the duodenum along the internal drainage tube.

3. Due to the limitation of the diameter of the external drainage tube system, when biliary irrigation is required, the internal drainage system of the nasobiliary duct has minimal impact on the external drainage system.

4. If it needs to be placed for a long time, the external drainage tube can be closed, and the bile can flow into the intestinal cavity along the internal drainage tube, avoiding excessive loss of bile.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is an enlarged schematic diagram of the main body of the drainage tube in a straight state.

In the figure: 1 head, 11 outer drainage pipe, 12 inner drainage pipe, 111 side hole of outer drainage pipe, 121 side hole of inner drainage pipe, 122 upper opening of inner drainage pipe, 123 lower opening of inner drainage pipe, 2 body part, 3 Outer joint, 31 joint pipe, 32 gasket, 33 plug, 4 auxiliary device.

Detailed ways

As shown in Figure 1 and Figure 2. Double-lumen nasobiliary drainage tube, including the main body of the drainage tube and accessories, the main body of the drainage tube includes a head 1 and a body 2, the head 1 is a double-lumen tube, and the head 1 includes an external drainage pipe 11 And the inner drainage pipe 12; one end of the outer drainage pipe 11 is curved in an arc shape, the other end of the outer drainage pipe 11 is connected with the body 2, and the end of the curved part of the outer drainage pipe 11 is provided with a straight hole, and the curved part of the outer drainage pipe 11 Two groups of outer drainage pipe side holes 111 are provided on the side of the inner drainage pipe 12; The upper part is provided with four side holes 121 of internal drainage pipes side by side;

The outer joint 3 includes a joint pipe 31, a gasket 32 and a plug 33. The structure of the joint pipe 31 is provided with a tapered pipe at one end of a cylindrical pipe. The pipe parts fit together, and the gasket 32 is located between the joint pipe 31 and the plug 33 .

The auxiliary device 4 is a round tube, and the two ends of the auxiliary device 4 are symmetrically provided with funnel-shaped structures that diffuse outward.

The two groups of external drainage pipe side holes 111 are staggered from each other, and the number of each group of external drainage pipe side holes 111 is four and arranged side by side.

The upper opening 122 of the inner drainage pipe and the lower opening 123 of the inner drainage pipe are oblique to the outer drainage pipe 11 . The setting of the oblique angle avoids damage to the bile duct and gastrointestinal tract when placing and removing the drainage tube.

The total length of the main body of the drainage tube is 200 centimeters, the outer diameter of the main body of the drainage tube is 3.3 millimeters, the length of the head 1 is 15 centimeters, the length of the body 2 is 185 centimeters, and the inner diameters of the outer drainage pipe 11 and the inner drainage pipe 12 are 1.6 mm. Due to the limitation of the diameter of the external drainage tube system, when biliary irrigation is required, the internal drainage system of the nasobiliary duct has minimal impact on the external drainage system. The present invention can be made into different specifications and models as required.

When in use, use the auxiliary device 4 to take the part of the front end of the main body of the straight drainage tube that is bent into a pigtail shape in an arc shape, perform routine endoscopic nasobiliary drainage, and insert the main body of the drainage tube into the biliary tract along the guide wire through the biopsy channel of the endoscope. At the corresponding position, the other end of the main body of the drainage tube is drawn out from the nostril, connected to the external joint 3, and fixed outside the main body of the drainage tube. When external drainage is not needed, the external connector 3 of the drainage tube can be closed.

After the main body of the drainage tube is placed, the bile can be drained out of the body along the external drainage tube 11, and can also flow into the duodenum along the internal drainage tube 12. If it needs to be placed for a long time, the external drainage tube 11 can be closed, and the bile Only flow into the intestinal cavity along the internal drainage pipe 12, avoiding excessive loss of bile. In addition, the arc shape of the head in the natural state is like a pigtail, which is not easy to protrude from the biliary tract. When the external force pulling the main body of the drainage tube reaches a certain level, the head of the main body of the drainage tube will be straightened to facilitate the extraction of the drainage tube.

The above is just to illustrate some principles of the present invention. This description is not intended to limit the present invention to the specific structure and scope of application shown. Therefore, all corresponding modifications and equivalents that may be used are Belong to the scope of the patent applied for by the present invention.

Except for the technical features described in the description, the rest of the technical features are known to those skilled in the art. the

Claims (6)

1. two-chamber nose bile drainage tube, comprises drainage tube main body, it is characterized in that, also comprises adnexa, and described drainage tube main body comprises head and body, and described head is double lumen tube, and head comprises external drainage pipeline and inner drainage tube road; One end bending of external drainage pipeline is circular-arc, and the external drainage pipeline other end is connected with body, and the end of external drainage pipeline sweep is provided with a straight hole, and the side of external drainage pipeline sweep is provided with two groups of external drainage pipeline side openings; It is suitable for reading that the upper end in inner drainage tube road is provided with inner drainage tube road, and the lower end in inner drainage tube road is provided with inner drainage tube road end opening, and the top of inner drainage tube road sidewall is provided with four inner drainage tube road side openings side by side; Described adnexa comprises coupling and auxiliary device.

2. two-chamber nose bile drainage tube according to claim 1, it is characterized in that, described coupling comprises junction block, pad and obstruction, the structure of described junction block forms for be provided with conical pipe in one end of a cylindrical tube, described obstruction partly matches with the cylindrical tube of junction block, and pad is at junction block and between stopping up.

3. two-chamber nose bile drainage tube according to claim 2, is characterized in that, described auxiliary device is pipe, the two ends symmetry of auxiliary device be provided with the funnel-shaped structure to external diffusion.

4. two-chamber nose bile drainage tube according to claim 3, is characterized in that, two groups of described external drainage pipeline side openings stagger mutually, and the quantity of every group of external drainage pipeline side opening is four and is set up in parallel.

5. two-chamber nose bile drainage tube according to claim 4, is characterized in that, described inner drainage tube road is suitable for reading is all oblique angle with inner drainage tube road end opening with respect to described external drainage pipeline.

6. two-chamber nose bile drainage tube according to claim 1 or 5, is characterized in that 200 centimetres of described drainage tube main body overall lengths, 3.3 millimeters of drainage tube main body external diameters, 15 centimetres of described head lengths, long 185 centimetres of described body, the internal diameter in described external drainage pipeline and inner drainage tube road is 1.6 millimeters.

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