CN111419151A - Perfusion system for endoscope - Google Patents

Abstract

The invention relates to a perfusion system for an endoscope, comprising a three-way, a suction control valve and a liquid recovery container. The first end of the three-way is provided with an insertion tube, and the second end of the three-way is provided with an inlet tube. The third end of the three-way is connected with one end of the suction control valve, and the other end of the suction control valve is connected with the liquid recovery container, and the liquid recovery container is used for Connected with the negative pressure suction device, when the suction control valve is in an open state and the second end of the three-way is in a sealed state, the perfusion system is in a suction state; when the suction control valve is in a sealed state In the closed state, the entry port of the second end of the tee is used for inserting surgical instruments or for filling liquid. The perfusion system for endoscope of the present invention forms a closed circulation system through three-way, suction control valve and liquid recovery solution.

Description

Perfusion system for endoscopy

technical field

The invention relates to the technical field of medical devices, in particular to a perfusion system for an endoscope.

Background technique

With the development of society, the improvement of people's life, and the improvement of awareness of medical care, people's awareness of endoscopy and acceptance of the census has been continuously improved. Therefore, endoscopy has become an important medical device in clinical medicine. The inspection and treatment of endoscope has become more and more mature since its clinical use in my country. With the increasing number of minimally invasive procedures to reduce laparotomy through the working channel of the endoscope in addition to the use and inspection, and the operation process The blood in the body cavity in the middle and the mucus left by the flushing liquid will affect the observation of the image.

In order to maintain the clarity of the image, the operation of water supply, air supply and suction for mirror cleaning is required. Therefore, the mirror body of the endoscope, including the working channel, needs to be strictly cleaned, disinfected, or sterilized after use. The purpose is to prevent unnecessary cross-infection during examinations using endoscopes.

A novel method of perfusion and recovery of perfusion fluid has been applied clinically in bronchoscopy. Due to the limitation of the design of the inner diameter of the working channel of the traditional bronchoscope, the current perfusion and fluid recovery are implemented through the working channel and the suction pipeline of the existing traditional bronchoscope.

Therefore, there is a need for a perfusion system that avoids cross-infection caused by improper cleaning, disinfection and sterilization, reduces the cost of users, and can extract the perfusate that prevents contamination and recovery.

SUMMARY OF THE INVENTION

The main purpose of the present invention is to solve the above problems, to provide a perfusion system for endoscopes that can be used once, avoids cross infection, and can recover perfusate.

In order to achieve the above object, the technical scheme of the perfusion system for endoscope adopted by the present invention is as follows:

It includes a three-way, a suction control valve and a liquid recovery container. The first end of the three-way is provided with an insertion tube, the second end of the three-way is provided with an inlet port, and the third end of the three-way is connected to the One end of the suction control valve is connected, and the other end of the suction control valve is connected with the liquid recovery container, and the liquid recovery container is used to communicate with the negative pressure suction device. When the valve is in an open state and the second end of the three-way is in a sealed state, the perfusion system is in a suction state; when the suction control valve is in a closed state, the entry port of the second end of the three-way For inserting surgical instruments or for filling fluids.

Preferably, the inlet port is provided with an adjustable sealing ring, and the adjustable sealing ring is configured to prevent the internal liquid from being ejected in reverse when the inlet port passes through surgical instruments or pours liquid, or when the inlet port is filled with liquid. When the perfusion system is in the suction state, the second end of the tee is kept in a sealed state.

Preferably, the front section of the insertion tube of the first end of the tee is provided with a helical groove, which is convenient for bending.

Preferably, the end of the insertion tube of the first end of the tee is provided with a fixed connection port, and after the insertion tube enters the channel of the endoscope, the fixed connection port passes through the The first end of the three-way is sealed and connected with the channel of the endoscope.

Preferably, the third end of the three-way is connected to one end of the suction control valve through a transparent pipeline.

Preferably, the third end of the tee is provided with an inverted protruding strip to prevent the transparent pipeline from falling off.

Preferably, the bottom of the suction control valve is provided with several protruding limit blocks to install the suction control valve on the fixed body.

Preferably, the liquid recovery container includes a sealing cover with two ports, one of the two ports is used to communicate with the suction control valve, and the other of the two ports is used to communicate with the negative pressure. The suction device is connected.

Preferably, a liquid level sensor and a buzzer are arranged on the inner wall of the liquid recovery container. When the liquid level sensor detects that the liquid level in the liquid recovery container reaches a preset liquid level, the buzzer The buzzer beeps.

The perfusion system for endoscope of the present invention forms a closed circulation system through the three-way, suction control valve, and liquid recovery solution, which can be made into disposable system components, reduces the cost, and avoids the need for disposable components. risk of cross-infection.

Description of drawings

FIG. 1 is a schematic structural diagram of a perfusion system for an endoscope according to the present invention.

Figure 2 is a view with a partial cutaway of the perfusion system for an endoscope of the present invention.

FIG. 3 is a cross-sectional view of the tee in the perfusion system for endoscope of the present invention.

Detailed ways

In order to understand the technical content of the present invention more clearly, the following embodiments are given for detailed description.

As shown in FIGS. 1 to 3, it is a specific embodiment of the perfusion system for endoscope used in the present invention, wherein the perfusion system includes a three-way 1, a suction control valve 2 and a liquid recovery container 3. The The first end of the tee 1 is provided with an insertion tube 4, the second end of the tee 1 is provided with an inlet 7, and the third end 9 of the tee 1 is controlled by the transparent pipeline 8 and the suction control. One end of the valve 2 is connected, and the other end of the suction control valve 2 is connected to the liquid recovery container 3 through the pipeline 10, and the liquid recovery container 3 is used for communicating with the negative pressure suction device.

In the perfusion system of the present invention, the suction control valve is located between the transparent pipeline 8 and the pipeline 10, and by controlling the opening and closing of the suction control valve, the communication and blocking between the transparent pipeline 8 and the pipeline 10 are realized; When the suction control valve 2 is in an open state and the second end of the three-way 1 is in a sealed state, the perfusion system is in a suction state, and the negative pressure suction is provided by the negative pressure suction device, and the liquid that is sucked out is in a suction state. Enter the liquid recovery solution 3 through the insertion tube 4, the transparent pipeline 8, and the pipeline 10 in sequence; when the suction control valve 2 is in a closed state, the entry port 7 of the second end of the three-way can be inserted into the surgical instrument operate, or you can pour in liquid.

As shown in FIG. 3 , in order to facilitate the use and sealing of the inlet port 7, the inlet port 7 is provided with an adjustable sealing ring 17, and an adjustment screw 18 can be provided on the sealing ring 17. When the inlet port 7 needs to be kept in a sealed state, Tighten the adjusting screw 18 to block the passage in the adjustable sealing ring 17; when it is necessary to insert a surgical instrument or pour liquid into the inlet 7, loosen the adjusting screw 18 to keep the passage in the adjustable sealing ring 17 unobstructed. The adjustable sealing ring 17 can prevent the water from overflowing from the inlet or the reverse spraying of the internal liquid to the outside.

As shown in Figures 1-2, the front section 5 of the insertion tube 4 at the first end of the tee 1 is provided with a spiral groove, and the spiral groove can be processed on the outer wall of the front section of the insertion tube to facilitate insertion The bending of the tube prevents the front section from wrinkling when it is bent, so that the endoscope can maintain a certain circular state when it is bent, and can comply with the bending and reduce the load during bending. The insertion tube is preferably a suction tube that is both soft and hard. The rear end of the insertion tube 4 at the first end of the tee 1 is provided with a fixed connection port 6. After the insertion tube 4 enters the channel of the endoscope, through the fixed connection port 6, The first end of the three-way 1 is sealed and connected to the channel of the endoscope. The fixed connection port can be selected to pass about a 90-degree rotating port, and at the same time play a sealing role.

As shown in FIG. 3 , the third end 9 of the tee 1 is provided with an inverted protruding strip 16 to prevent the transparent pipeline 8 from falling off.

As shown in FIG. 1 , the bottom of the suction control valve 2 is provided with three protruding stop blocks 19 to install the suction control valve 2 on the fixed body to prevent the suction control valve 2 from falling off during operation.

As shown in FIG. 2 , the liquid recovery container 3 includes a sealing cover 11, the sealing cover 11 has a first port 14 and a second port 15, wherein the first port 14 communicates with the suction control valve 2, and the first port 14 communicates with the suction control valve 2. The second port 15 is communicated with the negative pressure suction device, and the pipeline at the first port 14 is arranged at the bottom of the liquid recovery container 2 .

As shown in FIG. 2 , in order to realize the intelligent alarm function of the perfusion system of the present invention during suction, the inner wall of the liquid recovery container 3 is provided with a liquid level sensor 13 and a buzzer 12 , and the liquid sensor 13 is in phase with the buzzer 12 . When the perfusion system is in the suction state, the liquid level sensor 13 detects the liquid level in the liquid recovery container 3. If the preset liquid level is reached, the buzzer 12 emits a buzzing sound. to prompt the user.

Therefore, the perfusion system provided by the present invention can be used in combination with an endoscope and a negative pressure suction device. As a disposable consumable product, it can be used directly after being sterilized and unpacked in advance. product. When the insertion tube enters the human body through the tube of the endoscope, the liquid to be injected can be connected to the inlet of the second end of the tee, and the injected liquid is injected into the body through the insertion tube. , press the suction control valve to make it open, the liquid is sucked into the liquid recovery container by the negative pressure of the negative pressure suction device, and when the liquid in the liquid recovery container reaches a certain amount After that, through the buzzer of the liquid level alarm, release the suction control valve to make it close, and cut off the suction function of the negative pressure suction device, that is, stop the continuous negative pressure suction work. The sterilized cover is delivered for inspection to complete the entire working procedure. The perfusion system provided by the present invention has been verified by experiments.

The perfusion system for endoscope of the present invention forms a closed circulatory system through the three-way, suction control valve, and liquid recovery solution, and minimizes the recovery of liquid through the working channel provided on the endoscope, but through The perfusion system realizes the self-circulation recovery of the liquid; it can be made into a one-time system component, which reduces the cost; when the perfusion, recovery and suction are not used, a single tee and the suction valve body can form a combined component for normal suction use Both solutions can ensure safe use, as disposable components avoid the risk of cross-infection. Therefore, the perfusion system of the present invention is not only a simple, functionally undiminished, and indistinguishable from traditional endoscopy operations, but also a good solution for improving accurate detection and reducing cross-infection.

In this specification, the invention has been described with reference to specific embodiments thereof. However, it will be evident that various modifications and changes can still be made without departing from the spirit and scope of the invention. Accordingly, the specification and drawings are to be regarded in an illustrative rather than a restrictive sense.

Claims (9)

1. A perfusion system for an endoscope is characterized by comprising a tee joint, a suction control valve and a liquid recovery container, wherein an insertion tube is arranged at a first end of the tee joint, an inlet is arranged at a second end of the tee joint, a third end of the tee joint is connected with one end of the suction control valve, the other end of the suction control valve is connected with the liquid recovery container, the liquid recovery container is communicated with a negative pressure aspirator, and when the suction control valve is in an open state and the second end of the tee joint is in a sealed state, the perfusion system is in a suction state; when the suction control valve is in a closed state, the inlet of the second end of the tee joint is used for inserting surgical instruments or for irrigating liquid.

2. A perfusion system for an endoscope according to claim 1, wherein the access port is provided with an adjustable sealing ring configured to prevent back-out of internal fluid when the access port is passed through a surgical instrument or infused with fluid, or to maintain the second end of the tee in a sealed state when the perfusion system is in a suction state.

3. A perfusion system for an endoscope according to claim 1, wherein a forward section of the insertion tube at the first end of the tee is provided with a helical groove to facilitate bending.

4. A perfusion system for an endoscope according to claim 1, wherein a fixed connection port is provided at a trailing end of an insertion tube at a first end of the three-way junction, and the first end of the three-way junction is sealingly connected to the channel of the endoscope through the fixed connection port after the insertion tube enters the channel of the endoscope.

5. A perfusion system for an endoscope according to claim 1, wherein a third end of the three-way valve is connected to one end of the suction control valve through a transparent tube.

6. A perfusion system for an endoscope according to claim 5, wherein a backward protruding strip is provided at a third end of the three-way tube for preventing the transparent tube from falling off.

7. A perfusion system for an endoscope according to claim 1, wherein a plurality of protruding stoppers are disposed at the bottom of the suction control valve to mount the suction control valve to a fixing body.

8. A perfusion system for an endoscope according to claim 1, wherein the fluid recovery vessel includes a sealing cap having two ports, one of the two ports for communicating with a suction control valve and the other of the two ports for communicating with a negative pressure suction apparatus.

9. A perfusion system for an endoscope according to claim 1, wherein a liquid level sensor and a buzzer are disposed on an inner wall of the liquid recovery container, and the buzzer sounds when the liquid level sensor detects that the liquid level in the liquid recovery container reaches a preset liquid level.

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