CN115399713B - Magnetic control capsule endoscope traction cap and kit with spraying function - Google Patents

Abstract

The invention relates to the technical field of gastrointestinal examination instruments, in particular to a magnetic control capsule endoscope traction cap with a spraying function and a kit. The magnetic control capsule endoscope traction cap comprises: the separating piece is provided with a concave cavity suitable for being sleeved with the end part of the magnetic control capsule endoscope in an interference manner; the first traction tube is fixed on the separating piece at one end and communicated with the cavity, and the other end extends towards the opposite direction of the opening of the cavity and is suitable for being led out of the body when the esophagus is detected; a sealed cavity is formed between the spraying piece and the separating piece, and a spray hole is formed in the cavity wall of the sealed cavity; and one end of the second traction pipe is fixed on the spraying piece and communicated with the sealing cavity, the other end of the second traction pipe extends towards the direction far away from the separating piece, and liquid is injected into the sealing cavity through the second traction pipe and is sprayed out from the spray hole. The invention can fully observe the esophagus by repeatedly observing the esophagus part and spraying detection liquid such as iodine solution and the like, more clearly distinguish early neoplastic lesions of the esophagus and greatly reduce the missed diagnosis of the esophageal lesions.

Description

A magnetically controlled capsule endoscope traction cap and kit with spraying function

technical field

The invention relates to the technical field of gastrointestinal examination instruments, in particular to a magnetically controlled capsule endoscopic traction cap and a set with a spraying function.

Background technique

Capsule endoscopy is a new type of gastrointestinal examination device in recent years. Capsule endoscopy is the first-line diagnostic method for gastrointestinal diseases such as the small intestine. It is the first choice for patients with unexplained gastrointestinal bleeding. Among them, on the basis of capsule endoscopy, the magnetically controlled capsule endoscope controls the trajectory of the capsule endoscope through a magnetic field, making the capsule endoscope an actively controlled gastrointestinal capsule robot. The scope of observation has been expanded, from the initial local observation to the entire digestive tract of the esophagus, stomach, small intestine, and colon. Magnetically controlled capsule endoscopes are widely used due to their small size, one-time use of instruments to avoid the risk of cross-infection of conventional endoscopes, and the advantages of painless, non-invasive and comfortable examination for subjects.

Under normal conditions, the existing magnetically controlled capsule endoscope takes no more than 1 second from entering the mouth to reaching the stomach, while the photographing frequency of ordinary capsule endoscopes is 2-4 frames per second, so patients can only see To 2-4 examination images of the esophagus. This leads to insufficient observation of the esophagus by the existing magnetically controlled capsule endoscope, and the phenomenon of missed diagnosis of esophageal lesions is prone to occur. In addition, early esophageal tumors are often hidden, sometimes only local mucosal hyperemia or mucosal roughness, which can easily be missed under simple endoscopic observation.

Contents of the invention

Therefore, the technical problem to be solved by the present invention is to overcome the shortcomings of insufficient observation of the esophagus by the magnetically controlled capsule endoscope in the prior art, especially the difficulty in distinguishing early tumor lesions of the esophagus, thereby providing a magnetically controlled capsule with a spraying function. Endoscopic traction caps and kits.

The magnetically controlled capsule endoscope traction cap provided by the present invention comprises:

The separating part is provided with a concave cavity suitable for interference sleeve end of the magnetically controlled capsule endoscope;

The first drawing tube, one end of which is fixed on the separator and communicates with the concave cavity, and the other end extends in the opposite direction to the opening of the cavity and is suitable for being taken out of the body when the esophagus is detected, through the first pulling tube to the cavity. Pressurize the injection medium in the concave cavity to separate the separating part;

The spraying part is fixed on the side of the separating part away from the concave cavity and forms a sealed cavity with the separating part. A spray hole is opened on the wall of the sealed cavity, and the first traction tube seals through the sealed cavity;

The second drawing tube, one end of which is fixed on the spraying part and communicates with the sealing chamber, and the other end extends away from the separation part and is suitable for being drawn out of the body when the esophagus is detected, is passed through the second drawing tube to the The liquid is injected into the sealed cavity and ejected from the nozzle hole.

Optionally, the spray holes are arranged on the side walls of the sealed cavity.

Optionally, the first traction tube includes:

A connecting pipe, one end of which is fixed on the separator and communicates with the concave cavity, and the other end extends in the opposite direction to the opening of the concave cavity, and the connecting tube seals through the sealing cavity;

an extension pipe, which is sealingly connected with the connecting pipe;

The length of the extension pipe is greater than that of the connection pipe.

Optionally, the connecting pipe is integrally formed with the separating part, and the extension pipe is fixedly connected with the connecting pipe.

Optionally, the sprinkler is integrally formed with a tubular connection part, the connection part extends away from the separation part, the connection part communicates with the sealed cavity, and the second traction tube is connected to the The connecting part is sealed and connected, and the liquid is injected into the sealed cavity through the second drawing tube and the connecting part and sprayed out from the spray hole.

Optionally, the sprinkler is a barrel-shaped structure, and the outer edge of the end of the separating member connected to the sprinkler is provided with an annular step, and the opening end of the sprinkler is interference-fitted on the annular step .

Optionally, the separating part is a first drum part, the inner cavity of the first drum part forms the cavity, and the first traction tube is fixed at the bottom of the first drum part; The spraying part is a second drum part, the inner chamber of the second drum part and the bottom of the first drum part enclose the sealed cavity, and the second traction tube is fixed on the first drum part. The barrel bottom of the two barrel pieces.

Optionally, the end of the first drawing tube adapted to be taken out of the body when the esophagus is detected and/or the end of the second drawing tube adapted to be taken out of the body when the esophagus is tested is provided with a syringe connection part.

The magnetically controlled capsule endoscope kit provided by the present invention includes:

The aforementioned magnetically controlled capsule endoscope traction cap;

Magnetically controlled capsule endoscope, one end of which is interference-fitted in the concave cavity.

The technical solution of the present invention has the following advantages:

1. The magnetically controlled capsule endoscope traction cap provided by the present invention includes a separating part and a first traction tube. When in use, one end of the magnetically controlled capsule endoscope is interference-fitted in the concave cavity of the separating part, and moves together with the separating part , and the medium can be injected into the sealing area formed by the magnetically controlled capsule endoscope and the concave cavity through the first traction tube. Parts are separated; it also includes a spraying part and a second drawing tube, a sealed cavity is formed between the spraying part and the separating part, and a spray hole is provided on the wall of the sealed cavity, and liquid can be injected into the sealed cavity through the second drawing tube when in use Spray from the orifice. The spraying part of the present invention cooperates with the above-mentioned separating part. After the patient swallows the capsule, the first traction tube can be used to control the capsule to move up and down to observe the esophagus repeatedly. When a suspected tumor site is encountered, iodine can be injected into the sealed cavity through the second traction tube. The liquid is sprayed to the suspected tumor site of the esophagus through the spray hole. Since the squamous epithelial cells of the esophagus contain glycogen, the glycogen turns brown when it meets iodine, and the normal esophageal mucosa is stained brown after spraying iodine solution. Brown, and the lack of glycogen in tumor cells, combined with iodine solution will show a light stained area, which can more clearly show the tumor site. The present invention can fully observe the esophagus by repeatedly observing the esophagus and injecting iodine liquid and other detection liquids, and more clearly distinguish early tumor lesions of the esophagus, greatly reducing the occurrence of missed diagnosis of esophageal lesions. In addition, in the present invention, the spraying part and the separating part are functionally independent of each other, the concave cavity and the sealing cavity are not communicated, and structurally they move together. The liquid is injected into the stomach, and the separating part and the spraying part can be taken out at the same time, which is more convenient in operation and higher in feasibility.

2. In the magnetically controlled capsule endoscope traction cap provided by the present invention, the first traction tube includes a connecting tube and an extension tube, the length of the extension tube is greater than the length of the connecting tube, and the connecting tube can pass through the sealed cavity during specific production. In this way, compared with the overall production scheme of the first traction tube, it is not necessary to install the spraying part from the end of the first traction tube along its length to gradually approach the separation part, and only need to fix the connecting pipe on the separation part first , and then fix the spraying part on the separating part, and then connect the extension pipe and the connecting pipe. Since the length of the connecting pipe is much smaller than the extension pipe, the installation efficiency can be greatly improved.

3. The magnetically controlled capsule endoscope traction cap provided by the present invention integrates the connecting tube on the separating part, and can process the separating part and the connecting tube at the same time by injection molding or other methods, which is more convenient to process and also beneficial to The tightness between the connecting pipe and the separating part is ensured, so that the first drawing pipe and the concave cavity form a sealed channel. In addition, compared with the solution of directly connecting the first traction tube to the separator, the extension tube and the connecting tube realize the connection between the two tubes, and the connection is more convenient.

4. In the magnetically controlled capsule endoscope traction cap provided by the present invention, a tubular connection part is integrally formed on the spray part, and the second traction tube is sealed and connected with the connection part, and the second traction tube, the connection part and the sealing cavity jointly form a sealed channel, Compared with the solution of directly connecting the second drawing pipe to the sprinkler, the second drawing pipe and the connecting part realize the connection between two pipes, and the connection is more convenient.

5. In the magnetically controlled capsule endoscope traction cap provided by the present invention, the spraying part has a barrel-shaped structure, and the separating part is provided with a ring-shaped step, and the opening end of the spraying part interferes with the step on the ring-shaped step. On the one hand, on the premise that the airtightness can be guaranteed, the assembly is simpler; on the other hand, the appearance of the overall structure is more tidy, which is convenient for swallowing.

6. The magnetically controlled capsule endoscope traction cap provided by the present invention is provided with a syringe connection part at the end of the first traction tube and/or the second traction hook, which facilitates the connection with the syringe during detection and makes the operation more convenient.

7. The kit provided by the present invention has the magnetically controlled capsule endoscope traction cap, so it has any of the aforementioned advantages.

Description of drawings

In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the specific implementation or description of the prior art. Obviously, the accompanying drawings in the following description The drawings show some implementations of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

Fig. 1 is the structural representation of traction cap in the embodiment of the present invention;

Fig. 2 is the explosion schematic diagram of traction cap in the embodiment of the present invention;

Fig. 3 is the schematic sectional view of traction cap in the embodiment of the present invention;

Fig. 4 is a schematic structural view of a separator in an embodiment of the present invention;

Fig. 5 is the structural schematic diagram of sprinkler in the embodiment of the present invention;

Fig. 6 is a schematic structural view of the traction tube in an embodiment of the present invention;

Fig. 7 is a schematic structural diagram of a kit in an embodiment of the present invention;

Fig. 8 is a schematic cross-sectional view of a kit in an embodiment of the present invention;

Fig. 9 is a schematic diagram of the direction of the medium in the separated state in the kit structure shown in Fig. 8;

Fig. 10 is a schematic diagram of the direction of the medium in the spraying state in the kit structure shown in Fig. 8 .

Explanation of reference signs:

1. Separation piece; 11. Recessed cavity; 12. Annular step; 2. First traction tube; 21. Connecting tube; 22. Extension tube; 3. Sprinkler; 31. Connecting part; 4. Sealing chamber; 41. Spray Hole; 5. Second traction tube; 6. Syringe connection; 7. Magnetically controlled capsule endoscope.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as there is no conflict with each other.

Example 1

A specific implementation of a magnetically controlled capsule endoscope traction cap as shown in Figures 1-3, including:

The separating part 1 is provided with a concave cavity 11 suitable for interference fitting the end of the magnetically controlled capsule endoscope 7;

The first drawing tube 2, one end of which is fixed on the separator 1 and communicates with the concave cavity 11, and the other end extends in the opposite direction to the opening of the concave cavity 11 and is suitable for being taken out of the body when detecting the esophagus. The injection medium in the concave cavity 11 is pressurized so that the separation part 1 is disengaged;

The sprinkler 3 is fixed on the side of the separator 1 away from the concave cavity 11 and forms a sealed cavity 4 with the separator 1. A spray hole 41 is opened on the wall of the sealed cavity 4, and the first traction tube 2 seals through the sealed cavity. 4;

The second drawing tube 5, one end of which is fixed on the spraying part 3 and communicates with the sealing cavity 4, and the other end extends away from the separating part 1 and is suitable for being taken out of the body when detecting the esophagus. The liquid is injected into the sealed cavity 4 and sprayed out from the nozzle hole 41 .

The working principle of the separating part 1 is introduced in detail below: One end of the magnetically controlled capsule endoscope 7 is interference-fitted in the concave cavity 11. 11 forms a sealed area, and the magnetically controlled capsule endoscope 7 can move together with the separator 1, and the medium can be injected into the sealed area through the first traction tube 2, and the magnetically controlled capsule endoscope will be moved when the pressure of the medium reaches a certain value. The endoscope 7 is pushed out, so that the magnetically controlled capsule endoscope 7 is separated from the separating part 1 . In this way, when detecting the esophagus, the magnetically controlled capsule endoscope 7 can repeatedly and comprehensively inspect the esophagus by pushing and pulling the first traction tube 2, which overcomes the defect that the existing magnetically controlled capsule endoscope 7 is insufficient in detecting the esophagus; After the detection is completed, the magnetically controlled capsule endoscope 7 can be separated from the traction cap by injecting a medium into the sealing area, and the traction cap can be taken out without affecting the subsequent examination of the stomach and intestines. In addition, the size of the traction cap is compatible with the magnetically controlled capsule endoscope 7. It is small in size and highly acceptable to patients, which plays a positive role in the comprehensive and efficient development of comfortable endoscopy.

The working principle of the sprinkler 3 is described in detail below: a sealed cavity 4 is formed between the sprinkled component 3 and the separator 1, the cavity wall of the sealed cavity 4 is provided with a spray hole 41, the second traction pipe 5 communicates with the sealed cavity 4, and It is suitable for taking out of the body when testing the esophagus. The second traction tube 5 can be used to inject iodine solution and other testing liquids into the sealed cavity 4. The squamous epithelial cells of the esophagus contain glycogen. The glycogen turns brown when it meets iodine. After iodine solution, the normal esophageal mucosa is stained brown, while the glycogen of tumor cells is missing. After combining with iodine solution, a light stained area will appear, which can show the tumor site more clearly.

The spraying part 3 of the present invention cooperates with the aforementioned separating part 1. After the patient swallows the capsule, the first traction tube 2 can be used to control the capsule to move up and down to observe the esophagus repeatedly. When a suspected tumor site is encountered, the second traction tube 5 can be used to seal The detection liquid such as iodine solution is injected into the cavity 4, and the liquid is sprayed to the suspected tumor site of the esophagus through the spray hole 41, and the tumor site can be displayed more clearly through the color difference between the tumor site and the normal site. The present invention can fully observe the esophagus by repeatedly observing the esophagus and injecting iodine liquid and other detection liquids, and more clearly distinguish early tumor lesions of the esophagus, greatly reducing the occurrence of missed diagnosis of esophageal lesions. In addition, in the present invention, the spraying part 3 and the separating part 1 are functionally independent from each other, and the concave cavity 11 is not communicated with the sealing cavity 4, but structurally they move together, and when the capsule endoscope enters the stomach, it will not separate when it is injected with gas. The excess iodine solution is injected into the stomach, and the separating part 1 and the spraying part 3 can be taken out at the same time, so the operation is more convenient and the feasibility is higher. Furthermore, the present invention divides the drag anchor with a complex topological structure with spraying and separating functions into a separating part 1 and a spraying part 3, which reduces processing difficulty and improves processing efficiency. Because if the two adopt an integrated structure, they can only be processed by 3D printing, which is costly and inefficient, and the materials are usually not used for medical devices.

The specific shape of the above separator 1 is not specifically limited, for example, it may be columnar as shown in FIG. 4 , or may be other structures such as block or special shape. The shape of the concave cavity 11 provided on the separator 1 is not specifically limited, for example, it can be cylindrical as shown in FIG. .

A preferred structure of the separating part 1 is provided here: as shown in Figure 4, the separating part 1 is a first drum part, the inner cavity of the first drum part forms a concave cavity 11, and the first traction tube 2 is fixed on the first circular barrel part. The bottom of the bucket.

The separation part 1 is a cylindrical structure as a whole, which can reduce the damage to the patient's esophagus compared with the structure with ribs; the concave cavity 11 is set in a cylindrical shape, which can be adapted to the most common magnetically controlled capsule endoscope 7 in the market. , the applicability is stronger.

It is easy to understand that the above-mentioned interference suit has two functions: first, it can realize the fixed connection between the magnetically controlled capsule endoscope 7 and the separator 1, thereby realizing integrated movement; secondly, it can realize the connection between the magnetically controlled capsule endoscope 7 and the concave The sealing between the walls of the cavity 11 forms a sealing area between the magnetically controlled capsule endoscope 7 and the separator 1 , providing a structural basis for the separation of the separator 1 .

In detail, the magnetically controlled capsule endoscope 7 can abut against the bottom of the concave cavity 11, as shown in FIG. Part of the space will be reserved in the concave cavity 11 to form a sealed area. Of course, even if the magnetically controlled capsule endoscope 7 is a standard cylindrical shape, it is also feasible that the end surface of the magnetically controlled capsule endoscope fits completely with the bottom of the concave cavity 11, because the first A traction tube 2 is connected to the concave cavity 11, and the injected medium can directly touch the bottom surface of the magnetically controlled capsule endoscope 7 after coming out of the first traction tube 2. When the pressure is large enough, the magnetically controlled capsule endoscope 7 can also be pushed to the top. out; the magnetically controlled capsule endoscope 7 may not directly abut against the cavity bottom of the cavity 11, and leave a certain distance from the cavity bottom of the cavity 11, forming a gap between the magnetically controlled capsule endoscope 7 and the cavity bottom of the cavity 11 In the sealed area, the injected medium first accumulates in the sealed area after coming out of the first traction tube 2, and pushes the magnetically controlled capsule endoscope 7 out when the pressure is high enough.

It needs to be understood that the interference force generated by the magnetically controlled capsule endoscope 7 in the concave cavity 11 should be appropriate. If it is too large, the pressure in the required concave cavity 11 will be relatively high, so that the separating part 1 is separated. When it is too small, it is easy to have a large impact force and damage the human body; if it is too small, it is possible that the separating part 1 will fall off during the process of pushing and pulling the separating part 1.

Specifically, the fixing method of the first traction tube 2 on the separating part 1 is not limited, it may be integrally formed with the separating part 1, or may be fixed by means of gluing or the like.

The relative position of the first traction tube 2 and the separator 1 is also not limited, it can be that the end of the first traction tube 2 is fixed at the bottom of the cavity 11, and then the cavity bottom of the cavity 11 offers a through hole and the first traction tube 2; it may also be that the first traction tube 2 directly seals through the cavity bottom of the concave cavity 11 to form a part of the tube section located in the concave cavity 11. Of course, when the latter is adopted, a certain distance is reserved between the magnetically controlled capsule endoscope 7 and the cavity bottom of the concave cavity 11 .

The specific structure of the first traction tube 2 is not limited either, it may be a whole tube, or may be composed of two parts, as shown in FIG. 4 for example.

It should be understood that the other end of the first traction tube 2 is suitable for being taken out of the body when the esophagus is detected, and the length of the first traction tube 2 is intended to be limited. Considering the length of the human esophagus, the length of the first traction tube 2 should not be less than 40 cm. For the convenience of operation, the appropriate length of the traction rope is 70cm.

It is easy to understand that the first traction tube 2 should extend into the esophagus of the human body during use, so its material has corresponding requirements. First, it must be harmless to the human body, and secondly, it should use flexible materials to avoid damage to the esophagus. rope etc.

In detail, the medium used for separation is preferably gas, which will not cause much impact on the human body. Of course, liquids such as water that are harmless to the human body are also acceptable.

In detail, the material of the traction cap is made of silica gel, the patient has no obvious foreign body sensation when swallowing, and the examination is comfortable and easy. Of course, other flexible materials that are harmless to the human body can also be used, such as harmless rubber. Utilizing the elasticity of the flexible material is more conducive to realizing the interference socket of the magnetically controlled capsule endoscope 7 in the concave cavity 11 .

The specific structure of the above-mentioned sprinkler 3 is not limited, and it can be columnar, massive or special-shaped, but no matter which structure is adopted, two points must be met: first, it must be able to be fixedly connected with the separator 1; second, when fixed on When the separator 1 is on, it is necessary to form a sealed cavity 4 with the separator 1 .

The specific way of fixedly connecting the spraying part 3 and the separating part 1 is not limited, and conventional means such as gluing or bolts can be used. A preferred fixing method is provided here: the sprinkler 3 is a barrel-shaped structure, and the outer edge of the end of the separating member 1 connected to the sprinkler 3 is provided with an annular step 12, and the opening end of the sprinkler 3 interferes Socketed on the annular step 12. On the one hand, on the premise that the airtightness can be guaranteed, the assembly is simpler; on the other hand, the appearance of the overall structure is more tidy, which is convenient for swallowing.

Specifically, the sprinkler 3 can be a drum or a square bucket or other barrel-shaped structures.

A preferred sprinkler 3 structure is provided here: as shown in Figure 5, the sprinkler 3 is a second drum part, and the inner cavity of the second drum part and the bottom of the first drum part form a sealed cavity 4, The second traction pipe 5 is fixed on the bucket bottom of the second drum part. The sprinkler 3 has a barrel structure as a whole, which can reduce the damage to the patient's esophagus compared with the structure provided with ribs.

On the basis of the above-mentioned preferred sprinkler 3 structure, as shown in Figure 3, the separator 1 is also preferably the first drum part, the inner cavity of the first drum part forms a cavity 11, and the first traction tube 2 is fixed at the second The bottom of a barrel piece. In this way, both the separating part 1 and the spraying part 3 are cylindrical structures, which facilitates the assembly of the two.

Further, an annular step 12 is provided on the outer edge of the barrel bottom of the first barrel part, and the opening end of the second barrel part is interference-fitted on the annular step 12 . In this way, a fixed connection between the separating element 1 and the sprinkler element 3 is achieved, and relative sealing can be achieved.

The shape of the above-mentioned nozzle hole 41 is not specifically limited, it can be a round hole, it can also be a square hole or other shapes; the number of the nozzle hole 41 is also not specifically limited, it can be one or two or more, preferably along the A plurality of side walls are evenly distributed in the circumferential direction, so that the iodine solution can be sprayed to all angles of the esophagus at the same time, and the efficiency is higher. In detail, if only one or two spray holes 41 are provided, the magnetron capsule endoscope 7 needs to be rotated through the traction tube to spray iodine solution at various angles or specific suspected positions.

The opening position of the above-mentioned spray hole 41 is not limited, it can be on the side cavity wall of the sealed cavity 4, and also can be at the bottom of the cavity.

The specific formation structure of the above-mentioned sealed cavity 4 is not limited, and the sprinkler 3 may be provided with a recess, which forms the sealed cavity 4 with the separator 1, as shown in Figure 3; One side of the cavity 11 is provided with a recess, which forms the sealed cavity with the sprinkler 3 , and the spray hole 41 is opened on the recess.

Based on the improved structure of the magnetically controlled capsule endoscope traction cap, a preferred structure of the first traction tube 2 is provided here, which includes: a connecting tube 21, one end of which is fixed on the separator 1 and communicates with the cavity 11, and the other end Extending to the opposite direction of the opening of the concave cavity 11, the connecting pipe 21 seals through the sealing chamber 4; the extension pipe 22 is sealed and connected with the connecting pipe 21;

During specific production, the connecting pipe 21 can pass through the sealed cavity 4, so that, compared with the overall production of the first drawing pipe 2, it is not necessary to install the sprinkler 3 from the end of the first drawing pipe 2. Step by step along its length to the separation piece 1, only need to first fix the connecting pipe 21 on the separation piece 1, then fix the spraying piece 3 on the separation piece 1, and then connect the extension pipe 22 and the connection pipe 21, because the connection pipe 21 The length is much shorter than the extension pipe 22, so the installation efficiency can be greatly improved.

Specifically, as shown in FIG. 1 , the connecting pipe 21 is integrally formed with the separator 1 , and the extension pipe 22 is fixedly connected to the connecting pipe 21 . The separating part 1 and the connecting pipe 21 can be processed by injection molding or other methods at the same time, which is more convenient to process, and also helps to ensure the sealing between the connecting pipe 21 and the separating part 1, so that the first traction pipe 2 and the connecting pipe 2 can be connected to each other. The cavity 11 forms a sealed channel. In addition, compared with the solution of directly connecting the first traction tube 2 to the separator 1, the extension tube 22 and the connecting tube 21 realize the connection between two tubes, and the connection is more convenient. As an alternative embodiment, the connecting pipe 21 may also be fixed on the separator 1 by gluing or the like, and then the extension pipe 22 is fixedly connected to the connecting pipe 21 .

As an improved implementation of the sprinkler 3, as shown in Figure 5, the sprinkler 3 is integrally formed with a tubular connecting portion 31, the connecting portion 31 extends in a direction away from the separator 1, and the connecting portion 31 communicates with the sealed cavity 4 , the second drawing tube 5 is sealingly connected with the connecting portion 31 , and the liquid is injected into the sealed cavity 4 through the second drawing tube 5 and the connecting portion 31 and sprayed out from the spray hole 41 . Compared with the scheme of directly connecting the second drawing pipe 5 to the sprinkler 3 , the second drawing pipe 5 and the connecting portion 31 realize the connection between two pipes, and the connection is more convenient.

As an improved embodiment of the pulling tube, the end of the first pulling tube 2 adapted to be taken out of the body when testing the esophagus and/or the end of the second pulling tube 5 adapted to be taken out of the body when testing the esophagus is provided with a syringe connection part 6 . Specifically, there are the following three schemes: only the first drawing tube 2 is adapted to be provided with a syringe connection part 6 at the end that is taken out of the body when detecting the esophagus; Syringe connection part 6; the end that the first traction tube 2 is adapted to lead out of the body when detecting the esophagus and the end that the second traction tube 5 is adapted to lead out of the body when detecting the esophagus are all provided with a syringe connection part 6, as shown in Figure 6 Show. When the drawing tube is not provided with the syringe connection part 6, a corresponding structure can be added on the syringe to cooperate with the drawing tube.

Preferably, the syringe connection part 6 is a female Luer connector.

Example 2

A specific implementation of a magnetically controlled capsule endoscope kit as shown in Figures 7-8, including:

The magnetically controlled capsule endoscope traction cap described in embodiment 1;

One end of the magnetically controlled capsule endoscope 7 fits in the concave cavity 11 with interference.

The working principle of the magnetically controlled capsule endoscope kit of the present invention will be described in detail below in conjunction with FIGS. 9-10 :

Before the test, the end of the magnetically controlled capsule endoscope 7 is tightly sleeved in the concave cavity 11; during the test, the magnetically controlled capsule endoscope 7 enters the esophagus of the human body to be tested together with the first traction tube 2, and when the patient swallows After the capsule, the first traction tube 2 can be used to control the capsule to move up and down to observe the esophagus, and the spraying part 3 can hover over the esophagus where the lesion is suspected. Hole 41 is sprayed onto the esophagus. If there is a lightly stained area, it can be determined that the site is a tumor site; after detecting all suspected lesions in the esophagus, the magnetically controlled capsule endoscope 7 enters the stomach and passes through the first traction tube. 2. Gradually inject medium into the sealing area until the traction cap is separated from the capsule, and keep the capsule endoscope in the stomach for further inspection, and the traction cap and the first traction tube 2 are taken out of the patient's mouth.

Apparently, the above-mentioned embodiments are only examples for clear description, rather than limiting the implementation. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. And the obvious changes or changes derived therefrom are still within the scope of protection of the present invention.

Claims (6)

1. A magnetic control capsule endoscope traction cap is characterized by comprising:

the separating piece (1) is provided with a concave cavity (11) suitable for being sleeved with the end part of the magnetically controlled capsule endoscope (7) in an interference manner, the separating piece (1) is a first barrel piece, the concave cavity (11) is formed in the inner cavity of the first barrel piece,

the first traction pipe (2) is fixed on the separating piece (1) at one end and communicated with the cavity (11), the other end extends towards the opposite direction of the opening of the cavity (11) and is suitable for being led out of the body when the esophagus is detected, medium is injected into the cavity (11) through the first traction pipe (2) for pressurization so as to separate the separating piece (1), and the first traction pipe (2) is fixed at the bottom of the first barrel piece;

the first traction tube (2) comprises:

one end of the connecting pipe (21) is fixed on the separating piece (1) and is communicated with the cavity (11), and the other end of the connecting pipe extends towards the opposite direction of the opening of the cavity (11);

an extension pipe (22) hermetically connected to the connection pipe (21);

the length of the extension pipe (22) is greater than that of the connection pipe (21);

the spraying part (3) is fixed on one side, away from the cavity (11), of the separating part (1) and forms a sealed cavity (4) with the separating part (1), a spray hole (41) is formed in the cavity wall of the sealed cavity (4), the first traction pipe (2) penetrates through the sealed cavity (4) in a sealed mode, the spray hole (41) is formed in the position of the side wall of the sealed cavity (4), and the connecting pipe (21) penetrates through the sealed cavity (4) in a sealed mode;

second traction tube (5), its one end is fixed spray on piece (3) and with sealed chamber (4) intercommunication, the other end to keeping away from the direction of separator (1) extends and is suitable for when detecting the esophagus and draws outside, through second traction tube (5) to injection liquid in sealed chamber (4) and follow orifice (41) blowout, it is second cask piece to spray piece (3), the inner chamber of second cask piece with the barrel head of first cask piece encloses into sealed chamber (4), second traction tube (5) are fixed the barrel head of second cask piece.

2. The magnetically controlled capsule endoscope pulling cap according to claim 1, characterized in that the connecting tube (21) is integrally formed with the separate piece (1), and the extension tube (22) is fixedly connected with the connecting tube (21).

3. The magnetron capsule endoscope pulling cap according to claim 1, wherein the spraying member (3) is integrally formed with a tubular connecting portion (31), the connecting portion (31) extends in a direction away from the separating member (1), the connecting portion (31) is communicated with the sealed cavity (4), the second pulling tube (5) is hermetically connected with the connecting portion (31), and the liquid is injected into the sealed cavity (4) through the second pulling tube (5) and the connecting portion (31) and is ejected from the nozzle hole (41).

4. The magnetically controlled capsule endoscope traction cap according to any one of claims 1-3, wherein the spraying member (3) is a barrel-shaped structure, the outer edge of the end of the separating member (1) connected with the spraying member (3) is provided with an annular step (12), and the open end of the spraying member (3) is sleeved on the annular step (12) in an interference manner.

5. The magnetically controlled capsule endoscopic traction cap according to any of claims 1 to 3, wherein the end of the first traction tube (2) adapted to be brought out of the body when examining the esophagus and/or the end of the second traction tube (5) adapted to be brought out of the body when examining the esophagus is provided with an injector connection (6).

6. A kit, comprising:

the magnetically controlled capsule endoscopic drag cap of any one of claims 1 to 5;

one end of the magnetic control capsule endoscope (7) is sleeved in the concave cavity (11) in an interference manner.

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