CN112043945A

CN112043945A - Anti-backflow drainage tube for interventional therapy of ultrasonic endoscope

Info

Publication number: CN112043945A
Application number: CN202010958994.3A
Authority: CN
Inventors: 黄永辉; 张耀朋; 常虹; 闫秀娥; 姚炜; 李柯; 王迎春; 郑炜
Original assignee: Peking University Third Hospital Peking University Third Clinical Medical College
Current assignee: Peking University Third Hospital Peking University Third Clinical Medical College
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2020-12-08

Abstract

The invention discloses an anti-backflow drainage tube for interventional therapy of an ultrasonic endoscope, which comprises a head part, a connecting part and a tail part which are integrally formed in sequence, wherein the head part, the connecting part and the tail part are communicated with each other, a plurality of side holes are respectively formed in the side walls of the head part and the tail part, and the head part is in an open ring shape. When the invention is used, the tail end is arranged at the descending part of the duodenum, the stomach content can not directly enter the lesion area, the food is rarely remained in the duodenum due to the peristalsis of the duodenum and the emptying is accelerated, the reverse flow of the intestinal content can be reduced to the maximum extent by the side hole on the tail part, the blockage of the drainage tube is prevented, thereby the unobstructed period of the drainage tube is prolonged, and the economic burden of a patient can be greatly reduced.

Description

Anti-backflow drainage tube for interventional therapy of ultrasonic endoscope

Technical Field

The invention relates to the technical field of medical instruments, in particular to an anti-backflow drainage tube for ultrasonic endoscope interventional therapy.

Background

In recent years, with the rapid advance of digestive endoscopy equipment and related instruments, the unprecedented development of minimally invasive surgeries under various endoscopes, particularly the deep fusion of ultrasonic technology and endoscope technology, is more open to an unprecedented new field, realizes a plurality of treatments which can be realized only through surgical operations and interventional operations before, these fields are often of a type that is less preferred by surgical and interventional procedures, such as endoscopic ultrasound-guided puncture and drainage of pseudocysts in the pancreas, endoscopic ultrasound-guided puncture and drainage of bile ducts/pancreatic ducts, the minimally invasive surgery punctures pathological changes under the guidance of an ultrasonic endoscope and is arranged in a corresponding drainage tube to achieve the drainage purpose, thereby eliminating the pathological changes or relieving obstruction, although the application of new technologies has brought great hopes to such patients and actually solved many patients' illnesses. However, with the deep development of new technology and new operation, the defects of the existing drainage tube are slowly revealed, such as the problems of backflow and blockage of gastric juice of a plastic drainage tube and a metal drainage support, which causes the problems of reduced drainage effect, delayed lesion healing, incapability of normal feeding of patients for a long time, and the like.

A drainage tube used for the drainage of digestive tract puncture under the existing common ultrasonic endoscope is a double-pigtail plastic drainage tube, after the puncture is successful, one end of the drainage tube is arranged in a pathological change, and the other end of the drainage tube is arranged in a gastric cavity.

The other drainage tube is a metal tubular or double mushroom head drainage tube used for the gastrointestinal puncture drainage under the ultrasonic endoscope, after the puncture is successful, one end of the drainage tube is arranged in the pathological change, and the other end of the drainage tube is arranged in the gastric cavity, the drainage tube is characterized in that the inner diameter is thicker and about 10mm, the drainage effect is obviously better than that of the former drainage tube, the defects that the drainage tube is opened in the stomach and the opening is large, gastric juice and food are easy to flow back into the pathological change and are not beneficial to the healing of the pathological change, and the external drainage tube is required to be added after the drainage tube is pulled out in the later period to promote the further. And the drainage tube is not made of special metal, so that the price is high, about 2 ten thousand on average, and the economic burden of a patient is obviously increased.

Disclosure of Invention

The invention aims to provide an anti-backflow type drainage tube for ultrasonic endoscope interventional therapy, which aims to solve the problems in the prior art, increase the unobstructed effective period of the drainage tube and reduce the problem of the countercurrent of gastric contents and the incidence rate of countercurrent related infection.

In order to achieve the purpose, the invention provides the following scheme:

the invention provides an anti-backflow drainage tube for interventional therapy of an ultrasonic endoscope, which comprises a head part, a connecting part and a tail part which are integrally formed in sequence, wherein the head part, the connecting part and the tail part are communicated with each other, a plurality of side holes are formed in the side walls of the head part and the tail part, and the head part is in an open ring shape.

Preferably, the inner diameter and the outer diameter of the pipeline of the head part, the connecting part and the tail part are both 2.5mm and 2.8mm respectively.

Preferably, the tail end of the head is connected with a section of taper pipe, the small end of the taper pipe is the tail end, and the diameter of the opening is 2 mm.

Preferably, the diameter of the side holes of the head part is 4mm, and the distance between the side holes is 10 mm.

Preferably, the side hole of the tail part is provided with side valve holes, the diameter of the side valve holes is 5mm, and the distance between the side valve holes is 20 mm.

Preferably, the tail end is hemispherical, and the diameter of an opening formed at the top end of the hemisphere is 1 mm.

Preferably, the connecting part is provided with a plurality of specifications with different lengths of 20-40 cm.

Preferably, the head, the connecting part and the tail are all made of TPE materials.

Compared with the prior art, the invention has the following technical effects:

when the invention is used, the tail part is arranged at the descending part of the duodenum, the stomach content can not directly enter the lesion area, the food is rarely remained in the duodenum by the peristalsis of the duodenum and the emptying is accelerated, the reverse flow of the intestinal content can be reduced to the maximum extent by the side hole on the tail part, the blockage of the drainage tube is prevented, thereby the unobstructed period of the drainage tube is prolonged, and the economic burden of a patient can be greatly reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural view of an anti-backflow type drainage tube for an ultrasonic endoscopic interventional therapy of the present invention;

wherein: 1-head, 2-connecting part, 3-tail, 4-taper pipe, 5-side hole, 6-opening and 7-hole with side flap.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

The invention aims to provide an anti-backflow type drainage tube for ultrasonic endoscope interventional therapy, which aims to solve the problems in the prior art, increase the smooth effective period of the drainage tube and reduce the occurrence rate of the reflux problem of gastric contents and the reflux-related infection.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

As shown in fig. 1: the embodiment provides a type drainage tube is prevented flowing backward in ultrasonic endoscope intervention treatment, including integrated into one piece's head 1, connecting portion 2 and afterbody 3 in proper order, head 1, connecting portion 2 and afterbody 3 all communicate each other, all are provided with a plurality of side opening 5 on the lateral wall of head 1 and afterbody 3, and head 1 is opening 6 annular, can effectively prevent to shift and flow backwards. The head 1, the connecting part 2 and the tail 3 are all made of TPE materials, and plasticity and resilience are good.

Specifically, the inner diameters of the pipelines of the head part 1, the connecting part 2 and the tail part 3 are all 2.5mm, and the outer diameters thereof are all 2.8 mm. The tail end of the head part 1 is connected with a section of taper pipe 4, so that the narrow part can be conveniently passed through, the small end of the taper pipe 4 is the tail end, and the diameter of the opening 6 is 2 mm. The diameter of the side holes 5 of the head 1 is 4mm, and the distance is 10 mm.

The side hole 5 of the tail part 3 is provided with a side valve hole 7, the diameter is 5mm, the distance is 20mm, the side valve is the same with the pipe inlet direction, and the backflow can be effectively prevented. The tail end of the tail part 3 is hemispherical, so that the damage to intestinal mucosa can be reduced, and the diameter of an opening 6 arranged at the top end of the hemisphere is 1mm, so that a guide wire is arranged in a penetrating way.

The connecting part 2 is provided with a plurality of specifications with different lengths of 20-40cm, the corresponding length can be selected according to requirements, and the anti-backflow drainage tube for the ultrasonic endoscope interventional therapy is suitable for the situation of draining a puncture channel or a natural cavity channel in cases such as pancreatic pseudocyst drainage, EUS-PD, EUS-BD and gallbladder.

When the tail part 3 is arranged at the descending part of the duodenum, the stomach content cannot directly enter the lesion area, the food rarely remains in the duodenum due to the peristalsis of the duodenum and is accelerated to be emptied, and a small amount of countercurrent part hardly reaches the lesion area in the emptying process; the backflow of intestinal contents can be reduced to the greatest extent by the side flap hole 7 on the tail portion 3, the blockage of the drainage tube is prevented, the unobstructed period of the drainage tube is prolonged, and the economic burden of a patient can be greatly reduced.

The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.

Claims

1. The utility model provides an ultrasonic endoscope intervenes treatment and prevents flowing backward type drainage tube which characterized in that: including integrated into one piece's head, connecting portion and afterbody in proper order, the head connecting portion with the afterbody all communicates each other, the head with all be provided with a plurality of side opening on the lateral wall of afterbody, the head is the opening annular.

2. The anti-backflow type drainage tube for ultrasonic endoscope interventional therapy according to claim 1, which is characterized in that: the inner diameter and the outer diameter of the pipeline of the head, the connecting part and the tail are both 2.5mm and 2.8mm respectively.

3. The anti-backflow type drainage tube for ultrasonic endoscope interventional therapy according to claim 1, which is characterized in that: the tail end of the head is connected with a section of taper pipe, the small end of the taper pipe is the tail end, and the diameter of the opening of the taper pipe is 2 mm.

4. The anti-backflow type drainage tube for ultrasonic endoscope interventional therapy according to claim 1, which is characterized in that: the diameter of the side hole of the head is 4mm, and the interval is 10 mm.

5. The anti-backflow type drainage tube for ultrasonic endoscope interventional therapy according to claim 1, which is characterized in that: the side hole of afterbody is for taking the side flap hole and the diameter is 5mm, the interval is 20 mm.

6. The anti-backflow type drainage tube for ultrasonic endoscope interventional therapy according to claim 1, which is characterized in that: the tail end of the tail part is hemispherical, and the diameter of an opening formed in the top end of the hemisphere is 1 mm.

7. The anti-backflow type drainage tube for ultrasonic endoscope interventional therapy according to claim 1, which is characterized in that: the connecting part is provided with a plurality of specifications with different lengths of 20-40 cm.

8. The anti-backflow type drainage tube for ultrasonic endoscope interventional therapy according to claim 1, which is characterized in that: the head, the connecting portion with the afterbody is the TPE material.