CN216629395U

CN216629395U - Drainage support

Info

Publication number: CN216629395U
Application number: CN202123006887.XU
Authority: CN
Inventors: 郑炜; 黄永辉; 闫秀娥; 常虹; 张耀朋; 王迎春; 刘文正
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: 2021-12-02
Filing date: 2021-12-02
Publication date: 2022-05-31
Anticipated expiration: 2031-12-02

Abstract

The utility model relates to the technical field of medical equipment, and discloses a drainage support, which comprises a support main body, wherein the support main body comprises a first pipe body and a second pipe body which are communicated with each other, and at least one side wing for supporting the inner wall of a puncture channel is fixedly arranged on the outer wall of the first pipe body; the second tube body is bent in an arc shape and is arranged in the cavity of the organ to be drained, and at least one drainage hole penetrating through the tube wall of the second tube body is formed in the second tube body; the bracket main body is also provided with a fixing part which is used for fixedly connecting the inner wall of the cavity of the drainage organ to be treated. The drainage stent provided by the utility model can effectively drain, and can keep the position of the stent in a patient body relatively stable without obvious displacement or even shedding.

Description

Drainage support

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a drainage bracket.

Background

Ultrasonic Endoscopy (EUS) is developed rapidly in recent years, and new technologies caused by the development are endless. At present, most of benign diseases and partial malignant diseases of the biliary-pancreatic system can be diagnosed and treated by ultrasonic endoscopy and derivative technologies thereof, and a plurality of patients benefit from the diagnosis and treatment.

EUS is currently clinically primarily a tripartite effect: (1) diagnosing the disease by ultrasound imaging; (2) performing fine needle aspiration biopsy or suction on tissues through forceps channel insertion and aspiration of the EUS, and pathologically diagnosing diseases after the tissues are obtained; (3) a series of interventions, guided by EUS, mainly consists of: under EUS guidance pseudocyst drainage, under EUS guidance bile duct drainage, under EUS guidance pancreatic duct drainage, under EUS guidance gallbladder puncture drainage and under EUS guidance gastrointestinal anastomosis. In EUS guided intervention, the following steps are required: (1) the EUS selects a proper puncture point; (2) under the guidance of EUS, the puncture needle is punctured into a target organ or a diseased organ (a bile duct, a pancreatic duct, a gall bladder, a pseudocyst or jejunum) through the stomach or the duodenum; (3) after the guide wire is kept in the target organ or the lesion organ, the puncture channel is expanded by using a Sohendra expander under the guide of the guide wire so as to be convenient for further placing a drainage tube or a stent in the puncture channel. (4) After the puncture channel is expanded, a drainage tube and a bracket are arranged under the guidance of X-ray and ultrasonic endoscope. In the above steps, the implementation of step 4 has a crucial role in the degree of subsequent remission or recovery of the patient; some internal drainage tubes or stents which are kept in patients can obviously shift or even fall off due to the pathological changes or posture changes of the patients, thereby failing to achieve the purpose of effective drainage.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a drainage stent, which solves the problems in the prior art, can effectively drain, can keep the stent relatively stable in the body of a patient, and is not easy to obviously shift or even fall off.

In order to achieve the purpose, the utility model provides the following scheme:

the utility model provides a drainage support which comprises a support main body, wherein the support main body comprises a first pipe body and a second pipe body which are communicated, and at least one side wing for supporting the inner wall of a puncture channel is fixedly arranged on the outer wall of the first pipe body; the second tube body is bent in an arc shape and is arranged in a cavity of an organ to be drained, and at least one drainage hole penetrating through the tube wall of the second tube body is formed in the second tube body; the bracket main body is also provided with a fixing part which is fixedly connected with the inner wall of the cavity of the organ to be drained.

Preferably, the fixed part includes coil and titanium clamp, the coil is fixed set up in on the outer wall of second body, the coil pass through the titanium clamp be used for with treat drainage organ intracavity wall fixed connection.

Preferably, the number of the drainage holes is 4-6, and the drainage holes are distributed on the second pipe body at intervals.

Preferably, the first pipe body is provided as a straight pipe section.

Preferably, the number of the side wings is at least 2, and the side wings are distributed on two sides of the first pipe body.

Preferably, a joint of the first pipe and the second pipe is provided with a mark that can be detected by an external detection component.

Preferably, the side wings are inclined plane plates, and the opening direction of the included angle between the inclined plane plates and the outer wall of the first pipe body faces the second pipe body.

Preferably, the material of the stent main body is medical polyethylene or medical polytetrafluoroethylene.

Compared with the prior art, the utility model has the following technical effects:

when the drainage support provided by the utility model is used, the first tube body of the support main body is supported on the inner wall of the puncture channel through the side wings, so that the first tube body can be effectively prevented from displacing in the puncture channel; the second tube body is curved in an arc shape and is arranged in the cavity of the organ to be drained, the arc-shaped bend can effectively prevent the second tube body from displacing to enter the puncture channel, and the support main body can also be fixedly connected with the inner wall of the cavity of the organ to be drained through the fixing part, so that the displacement of the support main body is further prevented; after the support main body fixes the self position, the drainage liquid in the cavity of the organ to be drained enters the tube of the second tube body through the drainage hole and flows out of the organ through the first tube body.

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 drainage stent provided in accordance with one embodiment.

Icon: 1-a stent body; 11-a first tube; 111-flank; 12-a second tubular body; 121-drainage holes; 13-a fixed part; 131-a coil; 14-mark.

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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model aims to provide a drainage stent, which solves the problems in the prior art, can effectively drain, and can keep the stent relatively stable in position in a patient body without obvious displacement or even shedding.

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.

Example one

The embodiment provides a drainage stent, please refer to fig. 1, which includes a stent main body 1, including a first tube 11 and a second tube 12 which are communicated, at least one side wing 111 for supporting the inner wall of the puncture channel is fixedly arranged on the outer wall of the first tube 11; the second tube body 12 is curved in an arc shape and is used for being placed in a cavity of an organ to be drained, and at least one drainage hole 121 penetrating through the tube wall of the second tube body 12 is formed in the second tube body 12, specifically, the second tube body 12 can be in a pig tail shape, the diameter of the second tube body can be 1.5cm, and the second tube body can be set to other sizes according to specific individual differences or organ structures; the bracket main body 1 is also provided with a fixing part 13 which is fixedly connected with the inner wall of the cavity of the organ to be drained.

When the puncture needle is used, the first tube body 11 of the bracket main body 1 is supported on the inner wall of the puncture channel through the side wing 111, so that the bracket main body 1 can be prevented from displacing in the puncture channel; the second tube body 12 is arranged in a pigtail shape and is arranged in the cavity of the organ to be drained, the pigtail shape can effectively prevent the second tube body 12 from displacing and entering the puncture channel, and the support main body 1 can also be fixedly connected with the inner wall of the cavity of the organ to be drained through the fixing part 13, so that the support main body 1 is further prevented from displacing; after the stent main body 1 is fixed at the self position, the drainage liquid in the cavity of the organ to be drained enters the tube of the second tube body 12 through the drainage hole and is drained out of the diseased organ through the first tube body 11.

Further, the length of the stent body 1 may be set to be between 20cm and 30cm, the diameter may be 7Fr or 9Fr, etc., and the specific length and diameter of the stent body 1 may be selected according to the puncture site and the puncture route, and is not limited to the above range.

In an alternative of this embodiment, it is preferable that the fixing component 13 includes a coil 131 and a titanium clip (not shown in the figure), the coil 131 is fixedly disposed on the outer wall of the second tube 12, and the coil 131 is used for being fixedly connected with the inner wall of the lumen of the organ to be drained through the titanium clip to prevent the stent body 1 from being displaced; the diameter of the coil 131 can be set to 0.5cm, wherein the diameter of the coil 131 can also be determined according to actual conditions.

In the alternative of this embodiment, it is preferable that the number of the drainage holes 121 is set to 4 to 6, and the plurality of drainage holes 121 are distributed on the second tube 12 at intervals, so as to improve the drainage efficiency; the number and the position of the drainage holes 121 can be determined according to the structure of the organ and the puncture position.

In an alternative of this embodiment, it is preferable that the first pipe 11 is a straight pipe section for easy drainage.

In the alternative of this embodiment, it is preferable that the number of the side wings 111 is at least 2, and the side wings 111 are distributed on two sides of the first pipe 11; the limiting effect of the bracket main body 1 is improved, and the number of the specific side wings 111 can be determined according to actual requirements.

In an alternative of this embodiment, it is preferable that a mark 14 capable of being detected by the detecting component is provided at a joint of the first tube 11 and the second tube 12, specifically, the mark 14 is set to a dark color, and the position of the mark 14 and thus the position of the stent body 1 in the human body can be determined by X-ray and ultrasonic endoscope.

In the alternative of this embodiment, it is preferable that the lateral wing 111 is an inclined plane plate, and the opening direction of the included angle between the inclined plane plate and the outer wall of the first tube 11 faces the second tube 12, and when the second tube 12 of the stent main body 1 generates a tendency of dragging the first tube 11 into the organ cavity, the lateral wing 111 can play a reverse blocking role, thereby preventing the first tube 11 from displacing.

In the alternative of this embodiment, it is preferable that the material of the stent main body 1 is medical polyethylene or medical polytetrafluoroethylene, which is suitable for a human body and avoids the occurrence of allergic reaction.

The principle and the implementation mode of the utility model are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the utility model; 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 utility model.

Claims

1. A drainage stent characterized in that: the puncture needle comprises a support main body (1), wherein the support main body (1) comprises a first pipe body (11) and a second pipe body (12) which are communicated, and at least one side wing (111) used for supporting the inner wall of a puncture channel is fixedly arranged on the outer wall of the first pipe body (11); the second tube body (12) is bent in an arc shape and is arranged in a cavity of an organ to be drained, and at least one drainage hole (121) penetrating through the tube wall of the second tube body (12) is formed in the second tube body (12);

the bracket main body (1) is also provided with a fixing part (13) which is fixedly connected with the inner wall of the cavity of the organ to be drained.

2. The drainage stent of claim 1, wherein: the fixing part (13) comprises a coil (131) and a titanium clamp, the coil (131) is fixedly arranged on the outer wall of the second tube body (12), and the coil (131) is fixedly connected with the inner wall of the cavity of the drainage tube through the titanium clamp.

3. The drainage stent of claim 1, wherein: the number of the drainage holes (121) is set to be 4-6, and the drainage holes (121) are distributed on the second pipe body (12) at intervals.

4. The drainage stent of claim 1, wherein: the first pipe body (11) is arranged to be a straight pipe section.

5. The drainage stent of claim 1, wherein: the number of the side wings (111) is at least 2, and the side wings (111) are distributed on two sides of the first pipe body (11).

6. The drainage stent of claim 1, wherein: a mark (14) capable of being detected by an external detection component is arranged at the joint of the first pipe body (11) and the second pipe body (12).

7. The drainage stent of claim 1, wherein: the side wings (111) are inclined plane plates, and the opening direction of the included angle between each inclined plane plate and the outer wall of the first pipe body (11) faces the second pipe body (12).

8. The drainage stent of claim 7, wherein: the stent main body (1) is made of medical polyethylene or medical polytetrafluoroethylene.