Auxiliary channel catheter for single-forceps-channel endoscope

Abstract

The utility model relates to an auxiliary channel catheter for a single-forceps-channel endoscope, belongs to the technical field of medical instruments, and solves the problems that in the prior art, a single-forceps-channel endoscope is limited in use scene, and a double-forceps-channel endoscope is high in price and difficult to prepare. The auxiliary guide tube comprises a connecting tube, an auxiliary guide tube body and a transparent cap. The auxiliary guide pipe comprises an arc-shaped shell, a guide pipe and an adsorption colloid; the arc-shaped shell surrounds the guide pipe, and the arc-shaped shell and the guide pipe are of an integrated structure; an adsorption colloid is filled between the arc-shaped shell and the guide pipe; the adsorption colloid is made of a viscous material and can be in adsorption connection with the side surface of the endoscope catheter; the transparent cap is provided with a circular clamping groove capable of being clamped with an endoscope catheter. And the first catheter opening and the second catheter opening on the transparent cap are aligned with the single forceps channel and are communicated with the guide tube. The auxiliary catheter is connected to the outer side of the endoscope catheter side by side to form two channels, the using effect of the double forceps channels is achieved, and the price is low.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to an auxiliary channel catheter for a single-channel endoscope. Background Art

[0002] For the treatment of intraoperative perforation in digestive endoscopy surgery, the perforation site needs to be closed, and endoscopic clipping is an effective surgical mode. Taking the stomach as an example, when the endoscope is inserted into the patient's stomach, it can conveniently observe the damaged condition of the patient's stomach, and surgical equipment can be inserted into the inherent channel of the endoscope for suture, which is a treatment method with good surgical effects and rapid postoperative recovery.

[0003] For the closure of larger wounds, it is difficult to operate with a single-channel endoscope. Currently, the method of using metal clips and nylon ropes under a double-channel endoscope for large wound suture is a good operation method. However, the double-channel endoscope is expensive, and the medical device equipment in many primary hospitals is insufficient, which results in limited operation for doctors during surgery.

[0004] Based on this, it is necessary to provide an auxiliary channel catheter that can be used in conjunction with a single-channel endoscope, which can be used in conjunction with a single-channel gastroscope / colonoscope, and can basically replace a double-channel endoscope in function and has a low cost. Summary of the Utility Model

[0005] In view of the above analysis, the utility model aims to provide an auxiliary channel catheter for a single-channel endoscope to solve the problem of difficult operation of large wound suture with the existing single-channel endoscope.

[0006] The purpose of the utility model is mainly achieved through the following technical solutions:

[0007] An auxiliary channel catheter for a single-channel endoscope includes: a connecting tube, an auxiliary guiding tube, and a transparent cap;

[0008] The connecting tube and the transparent cap are respectively arranged at both ends of the auxiliary guiding tube and are fixed to the auxiliary guiding tube as a whole;

[0009] The auxiliary guiding tube includes: an arc-shaped outer shell, a guiding tube, and an adsorption colloid; the arc-shaped outer shell surrounds the outside of the guiding tube and the two are of an integral structure; an adsorption colloid is filled between the arc-shaped outer shell and the guiding tube; the adsorption colloid is a viscous material and can be adsorbed and connected with the endoscope catheter;

[0010] The transparent cap is provided with a circular card slot that can be engaged with the endoscope catheter; the transparent cap is also provided with a first catheter opening and a second catheter opening; the first catheter opening is aligned with the single channel of the endoscope catheter, and the second catheter opening is communicated with the guiding tube.

[0011] Furthermore, a threaded connection section is provided at the end of the connecting tube, and it can be threadedly connected with a medical three-way tube through the threaded connection section.

[0012] Furthermore, when the adsorption colloid is adsorbed and connected to the endoscope catheter, the guiding tube is juxtaposed with the single forceps channel of the endoscope catheter at 180°, and the edge of the arc-shaped outer shell can fit on the surface of the endoscope catheter.

[0013] Furthermore, the inner diameter of the guiding tube is the same as the inner diameter of the single forceps channel of the endoscope catheter.

[0014] Furthermore, the guiding tube is a circular tube, and the arc-shaped outer shell is a C-shaped structure; the guiding tube and the arc-shaped outer shell are integrally formed, and both are made of rubber material.

[0015] Furthermore, the adsorption colloid is filled in the gap between the arc-shaped outer shell and the guiding tube, and its outer surface can fit on the outer surface of the endoscope catheter.

[0016] Furthermore, the adsorption colloid is a silica gel adsorption colloid.

[0017] Furthermore, a transparent plastic film is pasted on the surface of the adsorption colloid.

[0018] Furthermore, the connecting tube is a rigid plastic tube.

[0019] Furthermore, the connecting tube and the guiding tube are fixedly connected by bonding and are communicated with each other.

[0020] The technical solution of the present utility model can at least achieve one of the following effects:

[0021] 1. For the auxiliary channel catheter for a single-forceps channel endoscope of the present utility model, the guiding tube is pasted on the side of the endoscope catheter through the adsorption colloid, so that the internal channel of the guiding tube cooperates with the single forceps channel of the endoscope catheter, and it can be used in cooperation with a single-forceps channel endoscope under simple conditions to achieve the use effect of replacing a double-forceps channel endoscope.

[0022] 2. For the auxiliary channel catheter for a single-forceps channel endoscope of the present utility model, by connecting the connecting tube at the end of the auxiliary guiding tube with a medical three-way tube, it can further have functions of suction / aspiration, injection / delivery of water through multiple connecting tubes of the medical three-way tube, realizing multiple functions of the auxiliary channel, and thus having a wider application scenario in clinical practice.

[0023] 3. The auxiliary channel catheter for a single-channel endoscope of the present utility model, after the auxiliary guiding tube is connected to the endoscope catheter, the two form two parallel channels, and the auxiliary guiding tube can move along with the movement of the single-channel endoscope catheter. Meanwhile, it has the advantages of simple structure, low cost, economic practicality, etc. For grass-roots units with insufficient funds to equip double-channel endoscopes, it can be equipped in batches to assist doctors in completing surgical operations.

[0024] In the present utility model, the above technical solutions can also be combined with each other to achieve more preferred combined solutions. Other features and advantages of the present utility model will be described in the subsequent description. Moreover, some advantages can be made obvious from the description or understood by implementing the present utility model. The objectives and other advantages of the present utility model can be achieved and obtained from the content specifically pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings are only for the purpose of showing specific embodiments and are not considered as a limitation to the present utility model. Throughout the drawings, the same reference signs represent the same components.

[0026] Figure 1 is a schematic structural diagram of the auxiliary channel catheter for the channel endoscope of the present utility model;

[0027] Figure 2 is a partial enlarged view of the connection end of the auxiliary channel catheter for the channel endoscope of the present utility model;

[0028] Figure 3 is a partial enlarged view of the transparent cap end of the auxiliary channel catheter for the channel endoscope of the present utility model;

[0029] Figure 4 is a sectional effect diagram of the auxiliary channel catheter for the channel endoscope of the present utility model;

[0030] Figure 5 is a schematic structural diagram of the transparent cap of the auxiliary channel catheter for the channel endoscope of the present utility model;

[0031] Figure 6 is a schematic diagram of the connection state between the auxiliary guiding tube and the transparent cap of the auxiliary channel catheter for the channel endoscope of the present utility model;

[0032] Figure 7 is a schematic diagram of the cooperation state between the auxiliary channel catheter for the channel endoscope of the present utility model and the endoscope;

[0033] Figure 8 is a schematic structural diagram of a medical three-way tube;

[0034] Figure 9Schematic diagram of the connection state between the auxiliary channel catheter for the forceps channel endoscope of the present utility model and the medical three-way tube.

[0035] Reference numerals:

[0036] 1 - connecting tube; 2 - auxiliary guiding tube; 3 - transparent cap; 4 - endoscope catheter; 5 - medical three-way tube; 101 - threaded connection section; 201 - arc-shaped housing; 202 - guiding tube; 203 - adsorption colloid; 301 - circular card slot; 302 - first catheter opening; 303 - second catheter opening; 401 - single forceps channel; 402 - illuminating lamp; 403 - camera; 501 - first communicating tube; 502 - second communicating tube; 503 - third communicating tube; 504 - fourth communicating tube. Detailed implementation manners

[0037] The preferred embodiments of the present utility model will be specifically described below with reference to the accompanying drawings. The accompanying drawings form a part of the present utility model and are used together with the embodiments of the present utility model to explain the principle of the present utility model, rather than to limit the scope of the present utility model.

[0038] Embodiment 1

[0039] A specific embodiment of the present utility model discloses an auxiliary channel catheter for a single forceps channel endoscope, as Figure 1 , Figure 2 , Figure 3 shown, including: a connecting tube 1, an auxiliary guiding tube 2 and a transparent cap 3.

[0040] Specifically, as Figure 1 , Figure 2 , Figure 3 shown, the connecting tube 1 and the transparent cap 3 are respectively arranged at both ends of the auxiliary guiding tube 2 and are both fixed to the auxiliary guiding tube 2 as a whole; preferably, the connecting tube 1, the auxiliary guiding tube 2 and the transparent cap 3 are fixed as a whole by bonding or integrally formed.

[0041] The auxiliary guiding tube 2 includes: an arc-shaped housing 201, a guiding tube 202 and an adsorption colloid 203; the arc-shaped housing 201 surrounds the outside of the guiding tube 202 and the two are of an integral structure; an adsorption colloid 203 is filled between the arc-shaped housing 201 and the guiding tube 202; the adsorption colloid 203 is a viscous material and can be adsorbed and connected to the side surface of the endoscope catheter 4.

[0042] As Figure 5 , Figure 6 shown, the transparent cap 3 is provided with a circular card slot 301 that can be engaged with the endoscope catheter 4; after the endoscope catheter 4 is engaged with the circular card slot 301, the connection between the endoscope catheter 4 and the end of the auxiliary channel catheter is realized.

[0043] Specifically, a first catheter opening 302 and a second catheter opening 303 are further provided on the transparent cap 3; the first catheter opening 302 is aligned with the single-channel 401 of the endoscope catheter 4, and the second catheter opening 303 is communicated with the guiding tube 202; thus, the single-channel 401 of the endoscope catheter 4 and the guiding tube 202 of the auxiliary channel catheter can be used as a double-channel.

[0044] As Figure 2 , Figure 9 shown, a threaded connection section 101 is provided at the end of the connecting tube 1, and the threaded connection section 101 can be screwed with the medical three-way tube 5.

[0045] Specifically, as Figure 8 , Figure 9 shown, the medical three-way tube 5 includes: a first connecting tube 501, a second connecting tube 502, a third connecting tube 503, and a fourth connecting tube 504 that are communicated with each other; wherein, internal threads are provided inside the first connecting tube 501, and the threaded connection section 101 at the end of the connecting tube 1 can be screwed with the internal threads to realize the connection between the medical three-way tube 5 and the auxiliary channel catheter. Further, after the first connecting tube 501 is connected to the connecting tube 1, the second connecting tube 502, the third connecting tube 503, and the fourth connecting tube 504 can be used as a water injection tube, a suction tube, and a guide wire penetration tube, respectively.

[0046] As Figure 7 shown, when the adsorption colloid 203 is adsorbed and connected to the endoscope catheter (4), the guiding tube 202 and the single-channel 401 of the endoscope catheter 4 are juxtaposed at 180°, and the edge of the arc-shaped housing 201 can fit on the surface of the endoscope catheter 4.

[0047] In a specific embodiment of the present invention, the inner diameter of the guiding tube 202 is the same as the inner diameter of the single-channel 401 of the endoscope catheter 4. Preferably, the inner diameter of the guiding tube 202 of the auxiliary channel catheter is 2.8 mm.

[0048] Further, as Figure 4 shown, the guiding tube 202 is a circular tube and is used as a juxtaposed channel for the single-channel 401 of the endoscope catheter 4.

[0049] Further, as Figure 4 shown, the arc-shaped housing 201 is a C-shaped structure; the C-shaped arc-shaped housing 201 is in a semi-surrounding state and covers the outside of the guiding tube 202, and can buckle the guiding tube 202 on the outside of the endoscope catheter 4, and then be pasted together with the endoscope catheter 4 through the adsorption colloid 203, and the auxiliary guiding tube 2 is used as a second channel and can follow the movement effect of the endoscope catheter 4.

[0050] Furthermore, the guide tube 202 and the arc-shaped housing 201 are integrally formed.

[0051] like Figure 4 As shown, the adsorbent colloid 203 is filled in the gap between the arc-shaped shell 201 and the guide tube 202, and its outer surface can be attached to the outer surface of the endoscope catheter 4. That is, the inner side of the adsorbent colloid 203 is attached to the arc-shaped shell 201 and the guide tube 20 as a whole, and the outer side is arc-shaped and can be attached and fixed to the surface of the endoscope catheter 4.

[0052] In a specific embodiment of the present invention, the adsorption colloid 203 is made of silica gel. In this embodiment, only one material type of the adsorption colloid 203 is given. Other medical materials with adsorption / adhesion effects are used as the adsorption colloid 203, which belongs to the same technical concept as the present invention and falls within the protection scope of the present invention.

[0053] In a specific embodiment of the utility model, a transparent plastic film is pasted on the surface of the adsorbent colloid 203. When in use, the transparent plastic film is torn off, the angle of the endoscope catheter 4 is adjusted so that the single clamp channel 401 is aligned with the first catheter opening 302, and then the adsorbent colloid 203 and the rubber shell of the endoscope catheter 4 are pressed and adhered together to achieve the fitting of the auxiliary guide tube 2 and the endoscope catheter 4. After the fitting, the two can bend or move synchronously, thereby achieving the use effect of a double-clamp endoscope, which is convenient for doctors to perform complex surgical operations.

[0054] In a specific implementation of the utility model, the connecting pipe 1 is a hard plastic pipe.

[0055] Preferably, the arc-shaped housing 201 and the guide tube 202 are made of plastic rubber tube.

[0056] In a specific embodiment of the utility model, the connecting tube 1 is fixedly connected to the guide tube 202 by bonding and the two are interconnected. When in use, the connecting tube 1 can be connected to a water injection device or a suction device to add water to the stomach cavity / suck out impurities; or a guide wire / clamp is inserted into the connecting tube 1, and the guide wire / clamp extends from the second catheter opening 303 of the transparent cap 3, so that suturing, clamping, medication and other operations can be performed.

[0057] Furthermore, the length of the auxiliary guide tube 2 is set according to the length of the endoscopic catheter 4 of different endoscopes (gastroscope / colonoscope); illustratively, the length of the auxiliary guide tube 2 used with a gastroscope is set to 100 cm, and the length of the auxiliary guide tube 2 used with a colonoscope is set to 130 cm.

[0058] Furthermore, the auxiliary guiding tube 2 is fixed with transparent tape at intervals of 30 cm according to the length of the endoscope catheter 4, or an elastic rubber ring is sleeved around the hoops outside the endoscope catheter 4 and the auxiliary guiding tube 2 to achieve secondary reinforcement after the two are connected by the adsorption colloid 203. Since the thickness of the transparent tape / elastic rubber ring is very thin, it will not affect the operation of the endoscope.

[0059] Specifically, in order to achieve a 180° fit between the internal channel of the guiding tube 202 of the auxiliary guiding tube 2 and the single forceps channel 401 of the endoscope catheter 4, scales or marking lines are provided on the outer side of the circular card slot 301 of the transparent cap 3.

[0060] Correspondingly, a mark is made at the end of the endoscope catheter 4 to facilitate the alignment of the endoscope catheter 4 with the first catheter opening 302 of the transparent cap 3.

[0061] When the auxiliary channel catheter of the present utility model is implemented:

[0062] For the auxiliary guiding tube of the present utility model, the auxiliary guiding tube 2 is attached to the side of the endoscope catheter 4 through the adsorption colloid 203. The cross-section of the auxiliary guiding tube 2 is designed as a flat and non-standard elliptical tube. The auxiliary guiding tube 2 fits well with the endoscope throughout the whole process, and the material of the auxiliary guiding tube 2 is thin and soft, without affecting the operation function of the endoscope.

[0063] When the auxiliary channel catheter of the present utility model is used, it is adsorbed and fixed to the endoscope catheter 4 through the adsorption colloid 203. At the same time, according to the length of the endoscope catheter 4, transparent tape is used to perform secondary pasting and reinforcement on the auxiliary guiding tube 2 to ensure the stability of the fixation. While ensuring the binding of the two, the auxiliary channel catheter is enabled to have the function of following the endoscope catheter. At the same time, the end of the auxiliary guiding tube 2 is fixedly connected to the transparent cap 3 and is snap-fitted and fixed to the end of the endoscope catheter 4 through the circular card slot 301 inside the transparent cap 3, realizing the reliable connection between the auxiliary guiding tube 2 and the endoscope catheter 4 and the positioning of their relative positions.

[0064] Furthermore, the operating end of the auxiliary guiding tube 2 is connected to a medical three-way tube 5 through a connecting tube 1, enabling it to have the functions of suction, gas injection, and water delivery; the heads of the auxiliary guiding tube 2 and the endoscope catheter 4 are both fixed with a transparent cap 3, and a first catheter opening 302 and a second catheter opening 303 are opened in the transparent cap 3 to communicate with the single forceps channel of the endoscope catheter 4 and the internal forceps channel of the auxiliary guiding tube 2, realizing double forceps channel cooperation. Then, surgical instruments such as guide wires or medical titanium clips are inserted into the double forceps channels to realize double forceps channel operation.

[0065] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model.

Claims

1. An auxiliary channel catheter for a single-channel endoscope, characterized in that Comprising: A connecting tube (1), an auxiliary guiding tube (2) and a transparent cap (3); The connecting tube (1) and the transparent cap (3) are respectively arranged at two ends of the auxiliary guiding tube (2), and are both fixed integrally with the auxiliary guiding tube (2); The auxiliary guiding tube (2) includes: an arc-shaped outer shell (201) and a guiding tube (202); the arc-shaped outer shell (201) surrounds the outside of the guiding tube (202), and the two are of an integral structure; an adsorption colloid (203) is filled between the arc-shaped outer shell (201) and the guiding tube (202); the adsorption colloid (203) is a viscous material and can be adsorbed and connected to the side surface of the endoscope catheter (4); A circular card slot (301) capable of being engaged with the endoscope catheter (4) is provided on the transparent cap (3); a first catheter opening (302) and a second catheter opening (303) are further provided on the transparent cap (3); the first catheter opening (302) is aligned with the single forceps channel (401) of the endoscope catheter (4), and the second catheter opening (303) is communicated with the guiding tube (202).

2. The auxiliary channel catheter for a single-channel endoscope according to claim 1, characterized in that, A threaded connection section (101) is provided at the end of the connecting tube (1), and the connecting tube (1) can be threadedly screwed with a medical three-way tube (5) through the threaded connection section (101).

3. The auxiliary channel catheter for a single-channel endoscope according to claim 1 or 2, characterized in that, When the adsorption colloid (203) is adsorbed and connected to the endoscope catheter (4), the guiding tube (202) and the single forceps channel (401) of the endoscope catheter (4) are juxtaposed at 180°, and the edge of the arc-shaped outer shell (201) can be attached to the surface of the endoscope catheter (4).

4. The auxiliary channel catheter for a single-channel endoscope according to claim 3, wherein, The inner diameter of the guiding tube (202) is the same as the inner diameter of the single forceps channel (401) of the endoscope catheter (4).

5. The auxiliary channel catheter for a single-channel endoscope according to any one of claims 1-2 and 4, characterized in that, The guiding tube (202) is a circular tube, and the arc-shaped outer shell (201) is a C-shaped structure; the guiding tube (202) and the arc-shaped outer shell (201) are integrally formed, and both are made of rubber material.

6. The auxiliary channel catheter for a single-channel endoscope according to claim 1, characterized in that, The adsorption colloid (203) is filled in the gap between the arc-shaped outer shell (201) and the guiding tube (202), and its outer surface can be attached to the outer surface of the endoscope catheter (4).

7. The auxiliary channel catheter for a single-channel endoscope according to claim 1, characterized in that, The adsorption colloid (203) is a silica gel adsorption colloid.

8. The auxiliary channel catheter for a single-channel endoscope according to claim 1, wherein A transparent plastic film is pasted on the surface of the adsorption colloid (203).

9. The auxiliary channel catheter for a single-channel endoscope according to claim 1, characterized in that, The connecting tube (1) is a rigid plastic tube.

10. The auxiliary channel catheter for a single-channel endoscope according to claim 1, wherein The connecting tube (1) and the guiding tube (202) are fixedly connected by bonding and are communicated with each other.

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