CN111419151A

CN111419151A - Perfusion system for endoscope

Info

Publication number: CN111419151A
Application number: CN202010337369.7A
Authority: CN
Inventors: 岑磊; 千行军; 徐睿; 赵彤
Original assignee: Shanghai Outai Medical Equipment Co ltd
Current assignee: Shanghai Outai Medical Equipment Co ltd
Priority date: 2020-04-26
Filing date: 2020-04-26
Publication date: 2020-07-17

Abstract

The invention relates to a perfusion system for an endoscope, which comprises a tee joint, a suction control valve and a liquid recovery container, wherein an insertion tube is arranged at the first end of the tee joint, an inlet is arranged at the second end of the tee joint, the 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. The perfusion system for the endoscope forms a closed circulating system through a tee joint, a suction control valve and a liquid recovery solution.

Description

Perfusion system for endoscope

Technical Field

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

Background

Along with the development of society, the improvement of the life of people and the improvement of consciousness of medical care brought by the improvement of the life of people, the cognition of people on the examination and the general survey acceptance of the endoscope is continuously improved. Therefore, endoscopy has become an important medical instrument in clinical medicine. The examination and treatment of the endoscope become more and more mature after the clinical use in China, along with the increasing use and examination, the minimally invasive procedures for reducing the laparotomy are carried out through the working channel of the endoscope, and meanwhile, the observation of images can be influenced by blood, mucus left by washing liquid medicine and the like in the body cavity in the operation process.

In order to keep the image clear, operations of water supply, air supply, and suction for cleaning the mirror surface are required, and therefore, the endoscope body of the endoscope, including the working channel, needs to be subjected to strict cleaning, disinfection, or sterilization after use. The purpose is to prevent unnecessary cross-contamination during the examination using the endoscope.

A novel perfusion and a perfusion fluid recovery method are applied to bronchoscopes clinically. Due to the limitation of the inner diameter design of the working channel of the conventional bronchoscope, the perfusion and the liquid recovery are implemented through the working channel and the suction pipeline of the conventional bronchoscope at present.

Therefore, there is a need for a perfusion system that avoids cross-contamination due to improper cleaning, disinfection and sterilization, reduces the cost of the user, and extracts perfusion fluid that is prevented from being recycled by contamination.

Disclosure of Invention

The main object of the present invention is to provide a disposable perfusion system for endoscope that avoids cross-infection and allows recovery of perfusion fluid, in view of the above-mentioned problems.

In order to achieve the above object, a perfusion system for an endoscope according to the present invention comprises:

the perfusion system comprises a tee joint, a suction control valve and a liquid recovery container, wherein an insertion pipe 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 used for being communicated with a negative pressure suction apparatus, 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.

Preferably, the inlet port is provided with an adjustable sealing ring, and the adjustable sealing ring is arranged to prevent the reverse ejection of the internal liquid when the inlet port is passed through a surgical instrument or injected with liquid, or to keep the second end of the tee in a sealing state when the perfusion system is in a suction state.

Preferably, the front section of the insertion tube at the first end of the tee is provided with a spiral groove for facilitating bending.

Preferably, a fixed connection port is arranged at the tail end of the insertion tube at the first end of the tee joint, and after the insertion tube enters the channel of the endoscope, the first end of the tee joint is hermetically connected with the channel of the endoscope through the fixed connection port.

Preferably, the third end of the tee is connected with one end of the suction control valve through a transparent pipeline.

Preferably, a third end of the tee is provided with an inverted convex strip for preventing the transparent pipeline from falling off.

Preferably, the bottom of the suction control valve is provided with a plurality of protruding limit blocks for mounting the suction control valve on the fixing body.

Preferably, the liquid recovery container comprises a sealing cover body with two ports, one of the two ports is used for being communicated with the suction control valve, and the other of the two ports is used for being communicated with the negative pressure suction device.

Preferably, the inner wall of the liquid recovery container is provided with a liquid level sensor and a buzzer, and the buzzer sounds after the liquid level sensor detects that the liquid level in the liquid recovery container reaches a preset liquid level.

The perfusion system for the endoscope forms a closed circulating system through the tee joint, the suction control valve and the liquid recovery solution, can be made into disposable system components, reduces the cost, and avoids the risk of cross infection as a disposable component.

Drawings

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

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

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

Detailed Description

In order to clearly understand the technical contents of the present invention, the following examples are given in detail.

As shown in fig. 1 to 3, a specific embodiment of a perfusion system for an endoscope adopted by the present invention is shown, wherein the perfusion system comprises a tee junction 1, a suction control valve 2 and a liquid recovery container 3, a first end of the tee junction 1 is provided with an insertion tube 4, a second end of the tee junction 1 is provided with an inlet 7, a third end 9 of the tee junction 1 is connected with one end of the suction control valve 2 through a transparent pipeline 8, the other end of the suction control valve 2 is connected with the liquid recovery container 3 through a pipeline 10, and the liquid recovery container 3 is used for communicating with a negative pressure suction apparatus.

According to the perfusion system, the suction control valve is arranged between the transparent pipeline 8 and the pipeline 10, and the communication and the blocking between the transparent pipeline 8 and the pipeline 10 are realized by controlling the opening and the closing of the suction control valve; when the suction control valve 2 is in an open state and the second end of the tee joint 1 is in a sealed state, the perfusion system is in a suction state, negative pressure suction is provided by a negative pressure suction apparatus, and the sucked liquid sequentially enters the liquid recovery solution 3 through the insertion tube 4, the transparent pipeline 8 and the pipeline 10; when the suction control valve 2 is in a closed state, the inlet 7 of the second end of the tee can be inserted into a surgical instrument for operation or can be filled with liquid.

As shown in fig. 3, in order to facilitate the use and sealing of the access opening 7, the access opening 7 is provided with an adjustable sealing ring 17, and an adjusting screw 18 can be arranged on the sealing ring 17, and when the access opening 7 is required to be kept in a sealing state, the adjusting screw 18 is screwed down, so that a passage in the adjustable sealing ring 17 is blocked; when it is desired to insert a surgical instrument or to inject a fluid into the access port 7, the adjustment screw 18 can be loosened to maintain the passageway in the adjustable seal 17 open. The adjustable sealing ring 17 can prevent the water overflowing from the inlet or prevent the liquid inside from reversely spraying outwards.

As shown in fig. 1-2, the front section 5 of the insertion tube 4 at the first end of the three-way joint 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 bending of the insertion tube and prevent the front section from creasing during bending, so that the endoscope can keep a certain circular state during bending and can be bent in a compliant manner to reduce the load force during bending. The insertion tube is preferably a soft and hard suction tube. The tail end of the insertion tube 4 at the first end of the tee joint 1 is provided with a fixed connecting port 6, and after the insertion tube 4 enters the channel of the endoscope, the first end of the tee joint 1 is hermetically connected with the channel of the endoscope through the fixed connecting port 6. The fixed connecting port can be selected to pass through a rotating port of about 90 degrees, and simultaneously plays a role in sealing.

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

As shown in fig. 1, the bottom of the suction control valve 2 is provided with 3 protruding stoppers 19 to mount the suction control valve 2 on a fixed body, so as to prevent the suction control valve 2 from falling off during the 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 is communicated with the suction control valve 2, the second port 15 is communicated with the negative pressure suction apparatus, and a pipeline at the first port 14 is disposed 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 during suction, a liquid level sensor 13 and a buzzer 12 are arranged on the inner wall of the liquid recovery container 3, the liquid sensor 13 is connected with the buzzer 12, the liquid level sensor 13 detects the liquid level in the liquid recovery container 3 during the suction state of the perfusion system, and the buzzer 12 sounds to prompt a user when the preset liquid level is reached.

Therefore, the perfusion system provided by the invention can be combined with an endoscope and a negative pressure suction apparatus for use, and can be directly used as a disposable consumable product after being sterilized and unsealed in advance, and the disposable consumable product which can not be reused can be discarded after being unsealed for use. When the liquid in the liquid recovering container reaches a certain amount, the buzzer of the liquid level alarm gives an alarm, the suction control valve is released to be in a closed state, the suction function of the negative pressure suction apparatus is cut off, namely, the suction work of the negative pressure is stopped continuously, at the moment, the liquid recovering container is taken off, and the sterilized cover is replaced for delivery and inspection, so that the whole working procedure is completed. The perfusion system provided by the invention has been verified through experiments.

The perfusion system for the endoscope forms a closed circulating system through the tee joint, the suction control valve and the liquid recovery solution, so that the liquid is recovered through a working channel on the endoscope as much as possible, and the self-circulation recovery of the liquid is realized through the perfusion system; the system component can be made into a disposable system component, so that the cost is reduced; when perfusion and recovery suction are not performed, a single tee joint and the suction valve body form a combined component which is normally used for suction, and the two schemes can ensure safe use and avoid the risk of cross infection as a disposable component. Therefore, the perfusion system is a good scheme which is simple, has no reduced function, has no difference with the traditional endoscope operation, improves the accurate detection and reduces the cross infection.

In this specification, the invention has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the invention. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.

Claims

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.