An electronic endoscope system with automatic water and air supply

Abstract

The present invention proposes an electronic endoscope system for automatic water and air supply, comprising a host and an endoscope, the electronic endoscope system also comprising a controller, a water supply detection system and an air supply detection system; a water supply and air supply port, an air pressure sensor and a humidity sensor are provided at the front end of the endoscope body, and the host comprises a water supply, air supply and suction system connected to the water supply and air supply port of the body. When a large amount of foreign matter exists in the organ to be inspected, the controller controls the water supply detection system to automatically supply water to flush the organ to which the body is directed, and after the flushing is completed, the water supply switch is automatically turned off; when sewage needs to be discharged, the controller controls the suction system to automatically pump water from the body cavity. When the pressure in the body cavity is lower than the minimum threshold, the controller controls the air supply detection system to automatically supply air and inflate the body cavity until the pressure in the body cavity reaches the maximum threshold, and the controller controls the air supply detection system to stop supplying air, so that the pressure in the body cavity is always between the minimum threshold and the maximum threshold.

Description

Technical Field

[0001] The invention belongs to the technical field of medical equipment, and in particular relates to an electronic endoscope system capable of automatically supplying water and air. Background Art

[0002] The electronic endoscope system is a commonly used medical device, which consists of a bendable part, a light source and a set of lenses. When used, the endoscope is introduced into the organ to be examined, and changes in the relevant parts can be directly observed.

[0003] At present, the water supply and air supply functions of electronic endoscopes are manually operated by doctors. A manual water supply switch and a manual air supply switch are provided on the operating handle of the electronic endoscope system. When the endoscope is working, the doctor opens or closes the manual water supply switch / air supply switch to supply water and air to the human body cavity. For example, CN104703530B discloses an endoscope, which includes at least two air and water supply buttons and a suction button. It is hard for doctors to hold the operating handle for a long time. If they need to keep pressing the buttons on the operating handle to supply water and air, it will bring a lot of inconvenience to the doctors. Summary of the invention

[0004] The present invention aims to solve the technical problems existing in the prior art. The purpose of the present invention is to provide an electronic endoscope system with automatic water and air supply to solve the problem that when the endoscope is working, the doctor needs to manually operate to realize the water and / or air supply functions.

[0005] To achieve the above object, the present invention adopts the following technical solution: an electronic endoscope system with automatic water and air supply, comprising a host and an endoscope connected to the host, the endoscope comprising an operating handle and a mirror body, and the host comprising a water supply system, an air supply system and a suction system;

[0006] The water supply pipe of the water supply system is controlled by the water supply switch;

[0007] The air supply pipe of the air supply system is controlled by the air supply switch;

[0008] The water supply switch and the air supply switch are independently or integrally arranged;

[0009] The electronic endoscope system also includes a water delivery detection system and / or an air delivery detection system;

[0010] The controller receives signals from the water supply detection system and the air supply detection system and controls the operation of the water supply switch and the air supply switch.

[0011] In the above technical scheme, by setting up a water supply detection system and an air supply detection system, the functions of automatic water supply and / or automatic air supply can be realized, and the doctor does not need to manually operate the air supply button and the water supply button to realize the water supply and air supply functions; on the one hand, it simplifies the difficulty of the water and air supply operation of the electronic endoscope, and on the other hand, it reduces the operating burden of the doctor.

[0012] In a preferred embodiment of the present invention, when the water supply switch and the air supply switch are integrally arranged, it is a water supply and air supply switch; the water supply and air supply switch has a water supply state and an air supply state.

[0013] In a preferred embodiment of the present invention, the water delivery detection system includes a shooting system and an image recognition system connected to the shooting system; the output end of the image recognition system is connected to the controller, and the water delivery control end of the controller is electrically connected to the control end of the water delivery switch. When there are a large amount of foreign matter such as food residues, mucus or blood in the human body cavity, the controller controls the water delivery system to automatically deliver water to flush the organ facing the mirror body, and when the flushing is completed, the water delivery switch is automatically turned off.

[0014] In a preferred embodiment of the present invention, the air supply detection system includes an air pressure sensor disposed at the front end of the scope, the pressure signal input end of the controller is connected to the signal output end of the air pressure sensor, and the air supply control end of the controller is electrically connected to the control end of the air supply switch. By arranging the air pressure sensor at the front end of the scope, when the pressure in the body cavity is lower than the minimum threshold, the controller controls the air supply system to automatically supply air and inflate the body cavity until the pressure in the body cavity reaches the maximum threshold, and the controller controls the air supply switch to close and stop inflating the body cavity.

[0015] In a preferred embodiment of the present invention, the suction system includes a suction pump for sucking sewage, a suction switch is provided on a suction pipeline connected to the suction pump, and a suction control end of the controller is electrically connected to a control end of the suction switch;

[0016] A humidity sensor is also provided at the front end of the mirror body, and the water absorption signal input end of the controller is connected to the signal output end of the humidity sensor.

[0017] This realizes the automatic water pumping function, further reducing the doctor's operating burden.

[0018] In a preferred embodiment of the present invention, the water delivery detection system also includes a first comparator, a first input end of the first comparator is connected to the mucosal proportion signal output end of the controller, a second input end of the first comparator is connected to a first threshold memory, and an output end of the first comparator is electrically connected to the control end of the water delivery switch.

[0019] In another preferred embodiment of the present invention, the controller includes a second comparator and a third comparator; the first input end of the second comparator is connected to the signal output end of the air pressure sensor, the second input end of the second comparator is connected to the minimum threshold memory, and the output end of the second comparator is electrically connected to the control end of the air supply switch; the first input end of the third comparator is also connected to the signal output end of the air pressure sensor, the second input end of the third comparator is connected to the maximum threshold memory, and the output end of the third comparator is also electrically connected to the control end of the air supply switch.

[0020] In another preferred embodiment of the present invention, the water supply and air supply switch is a two-position three-way solenoid valve, which has an air inlet interface, a water inlet interface and a fluid outlet, and water and air both flow out from the fluid outlet. Compared with independently setting the water supply switch and the air supply switch, setting a two-position three-way solenoid valve makes the volume smaller and the structure more compact.

[0021] In another preferred embodiment of the present invention, the attraction switch is a normally closed solenoid valve.

[0022] The beneficial effects of the present invention are as follows:

[0023] 1) The amount of foreign matter in the organ cavity is determined by the shooting system and the image recognition system, which serves as a signal for turning the water supply switch on or off, thereby realizing the automatic water supply function; a humidity sensor is set at the front end of the scope. When it is immersed in sewage, the humidity is 100%, which is used to sense sewage and serves as a signal for turning the suction switch on or off, thereby realizing the automatic water pumping function.

[0024] 2) An air pressure sensor is provided at the front end of the mirror body to detect the air pressure in the cavity. The detected air pressure value is used as a signal to turn the air supply switch on or off, thereby realizing the function of automatic air supply.

[0025] 3) The electronic endoscope can automatically deliver water, gas and pump water, without the need for the doctor to manually operate the switch button to achieve the water delivery, gas delivery and water pumping functions. On the one hand, it simplifies the difficulty of operating the electronic endoscope to deliver water, gas and pump water, and on the other hand, it reduces the operating burden on the doctor.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0028] Figure 1 It is a schematic diagram of the structure of the electronic endoscope system of the present application.

[0029] Figure 2It is a structural schematic diagram of the front end of the endoscope body in this application.

[0030] Figure 3 It is a control flow diagram of the electronic endoscope system of the present application.

[0031] Figure 4 It is a schematic diagram of the gas supply process of an implementation mode of the electronic endoscope system of the present application.

[0032] The reference numerals in the drawings of the specification include: main unit 10, endoscope 20, operating handle 21, water supply switch 211, air supply switch 212, suction switch 213, bendable portion 22, mirror body 23, water supply and air supply port 231, air pressure sensor 232, and humidity sensor 233. DETAILED DESCRIPTION

[0033] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0034] In the description of the present invention, it is necessary to understand that the terms "longitudinal", "lateral", "vertical", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0036] The present invention provides an electronic endoscope system with automatic water and air supply, such as Figure 1 and Figure 2As shown, in a preferred embodiment of the present invention, it includes a host 10 and an endoscope 20 connected to the host 10, the endoscope 20 includes an operating handle 21 and a mirror body 23 connected by a bendable portion 22, and a water supply and air supply port 231 is provided at the front end of the mirror body 23, and water supply, air supply, and water extraction are all performed through the water supply and air supply port 231. The host 10 includes a water supply system, an air supply system, and a suction system connected to the water supply and air supply port 231 of the mirror body 23.

[0037] The water supply pipe of the water supply system is controlled by the water supply switch 211, and the air supply pipe of the air supply system is controlled by the air supply switch 212. The water supply switch 211 and the air supply switch 212 are independently or integrally arranged. Figure 1 The figure shows an integrated setting. When set independently, the water supply switch 211 and the air supply switch 212 are two switches, each having an inlet and an outlet, and are preferably arranged on the operating handle 21 of the endoscope 20. When set as an integrated unit, the water supply switch 211 and the air supply switch 211 are integrated together to form a water supply and air supply switch, which has a water supply state and an air supply state, and is also arranged on the operating handle 21 of the endoscope 20; for example, the water supply and air supply switch is a two-position three-way solenoid valve, which has an air inlet interface, a water inlet interface and a fluid outlet. Since water supply and air supply are not carried out at the same time, water and air both flow out from the fluid outlet. Preferably, the two-position three-way solenoid valve is a LT23JD-8 type normally closed solenoid valve.

[0038] like Figure 3 As shown, the electronic endoscope system also includes a water supply detection system and / or an air supply detection system, that is, in practice, only the water supply detection system or the air supply detection system can be set, or both the water supply detection system and the air supply detection system can be set. This embodiment takes the simultaneous setting of the water supply detection system and the air supply detection system as an example for explanation. The controller receives signals from the water supply detection system and the air supply detection system and controls the operation of the water supply switch and the air supply switch. When the water supply switch and the air supply switch are set as one, the controller controls the operation of the water supply and air supply switches to put them in a water supply state, an air supply state or a closed state.

[0039] like Figure 3 It can be seen that in another preferred embodiment of the present invention, the water supply detection system includes a shooting system and an image recognition system connected to the shooting system; the output end of the image recognition system is connected to the controller, and the water supply control end of the controller is electrically connected to the control end of the water supply switch to control the opening and closing of the water supply switch, or the water supply control end of the controller is electrically connected to the control end of the water supply status of the water supply and air supply switch.

[0040] In another preferred embodiment of the present invention, Figure 2 As shown, the air supply detection system includes an air pressure sensor 232 disposed at the front end of the mirror body 23; Figure 3As shown, the pressure signal input end of the controller is connected to the signal output end of the air pressure sensor, the air supply control end of the controller is electrically connected to the control end of the air supply switch, or the air supply control end of the controller is electrically connected to the control end of the air supply state of the water supply and air supply switch.

[0041] Since the pumps (the power source that makes the fluid flow in the pipeline) in the water supply system, air supply system and suction system are always turned on during the entire inspection process, the water supply detection system and the air supply detection system do not need to control the opening and closing of the pumps, and the description of this part is omitted in the following content.

[0042] The control process of the water delivery detection system is as follows: After the electronic endoscope body 23 enters the human body, such as the esophagus, rectum, stomach cavity, laryngeal cavity, etc. Figure 3 As shown, the image recognition system performs image preprocessing on the internal images of the organs taken by the shooting system. The image preprocessing can use a convolutional neural network to determine the proportion of the mucosal area of ​​the photographed organ (area percentage value). When it is detected that the mucosal area proportion is lower than the first threshold (for example, there are a large amount of food residues, mucus or blood and other foreign matter in the picture), the controller controls the water supply switch to turn on, and the water supply system supplies water to flush the organ facing the scope until the proportion of the mucosal area is higher than the first threshold; after the flushing is completed, the controller controls the water supply switch to turn off; then the suction switch in the suction system is turned on to extract the sewage in the organ. After the sewage is extracted, the suction switch is turned off (the sewage suction process can be manually operated by a manual switch or by the following automatic water pumping). In the subsequent inspection process, the above-mentioned water supply and water pumping operations will be repeated continuously to clean up foreign matter in the organ.

[0043] In this embodiment, the controller may adopt the gastroscopic image quality detection method disclosed in CN109949281A to turn on the water supply switch based on the image recognized by the image recognition system, or may adopt the specific method disclosed in CN102608116A for calculating the percentage of the area of ​​the gastric ulcer region to the area of ​​the gastric mucosa region, or may adopt the prior art method of determining whether there is a foreign body based on the clarity of the mucosa in the picture, thereby turning on the water supply switch.

[0044] The control process of the air supply detection system is as follows: After the electronic endoscope body 23 enters the human body, the air pressure sensor 232 detects the pressure in the human body cavity. Figure 3 As shown, during the inspection, when the air pressure sensor detects that the pressure in the body cavity is lower than the minimum threshold, the controller controls the air supply switch to open, and the air supply system inflates the body cavity until the air pressure sensor detects that the pressure in the body cavity reaches the maximum threshold, and the controller controls the air supply switch to close and stops inflating the body cavity. In the subsequent inspection process, the above operation will be repeated continuously to keep the pressure in the body cavity between the minimum threshold and the maximum threshold.

[0045] In another preferred embodiment of the present invention, the suction system includes a suction pump (not shown in the figure) for sucking sewage. Figure 1 As shown, a suction switch 213 is provided on the suction pipeline connected to the suction pump. Preferably, the suction switch 213 is a normally closed electromagnetic valve, which is also provided on the operating handle 21 of the endoscope 20; Figure 3 As shown, the attraction control end of the controller is electrically connected to the control end of the attraction switch; Figure 2 As shown, a humidity sensor 233 is also provided at the front end of the mirror body 23. Figure 3 As shown, the water absorption signal input terminal of the controller is connected to the signal output terminal of the humidity sensor, and the humidity sensor 233 can be a SHT3-DIS type humidity sensor.

[0046] During the doctor's examination, when it is necessary to pump out the sewage, the doctor moves the scope to immerse the humidity sensor in the sewage. The humidity value measured by the humidity sensor is 100%. At this time, the controller controls the suction switch to open and discharge the sewage used to flush the foreign matter. When it is not necessary to discharge the sewage, the doctor moves the scope away from the sewage. The humidity value measured by the humidity sensor is less than 100%. At this time, the controller controls the suction switch to close and stop pumping water from the body cavity. This realizes the function of automatic water pumping, without the doctor having to manually operate the switch button, reducing the doctor's operating burden.

[0047] like Figure 3 As shown, in another preferred embodiment of the present invention, the water delivery detection system further includes a first comparator, the first input end of the first comparator is connected to the mucosal ratio signal output end of the controller, the second input end of the first comparator is connected to a first threshold memory, the first threshold memory stores a first threshold value of the mucosal area ratio (area percentage), the specific value of the first threshold can be set according to actual conditions, and the output end of the first comparator is electrically connected to the control end of the water delivery switch. In practice, the first comparator can be integrated with the controller to become a part of the controller, or the first comparator can be set separately from the controller.

[0048] like Figure 4 As shown, in another preferred embodiment of the present invention, the controller includes a second comparator and a third comparator; the first input end of the second comparator is connected to the output end of the air pressure sensor, the second input end of the second comparator is connected to a minimum threshold memory, the minimum threshold memory stores the minimum threshold of the pressure in the body cavity, the specific value of the minimum threshold can be set according to actual conditions, and the output end of the second comparator is electrically connected to the control end of the air supply switch; the first input end of the third comparator is also connected to the output end of the air pressure sensor, the second input end of the third comparator is connected to a maximum threshold memory, the maximum threshold memory stores the maximum threshold of the pressure in the body cavity, the specific value of the maximum threshold can be set according to actual conditions, and the output end of the third comparator is also electrically connected to the control end of the air supply switch.

[0049] In the description of this specification, the description with reference to the terms "preferred embodiment", "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0050] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An electronic endoscope system with automatic water and air supply, comprising a host and an endoscope connected to the host, the endoscope comprising an operating handle and a mirror body, the host comprising a water supply system, an air supply system and a suction system; characterized in that: The water supply pipe of the water supply system is controlled by the water supply switch; The air supply pipe of the air supply system is controlled by the air supply switch; The water supply switch and the air supply switch are independently or integrally arranged; The electronic endoscope system also includes a water delivery detection system and / or an air delivery detection system; The controller receives signals from the water supply detection system and the air supply detection system and controls the operation of the water supply switch and the air supply switch; The water supply detection system includes a shooting system and an image recognition system connected to the shooting system, the output end of the image recognition system is connected to the controller, and the water supply control end of the controller is electrically connected to the control end of the water supply switch; the air supply detection system includes an air pressure sensor arranged at the front end of the mirror body, the pressure signal input end of the controller is connected to the signal output end of the air pressure sensor, and the air supply control end of the controller is electrically connected to the control end of the air supply switch; The suction system includes a suction pump for sucking sewage, a suction switch is provided on the suction pipeline connected to the suction pump, and the suction control end of the controller is electrically connected to the control end of the suction switch; a humidity sensor is also provided at the front end of the mirror body, and the water absorption signal input end of the controller is connected to the signal output end of the humidity sensor; When the humidity value measured by the humidity sensor is 100%, the controller controls the attraction switch to open, and when the humidity value measured by the humidity sensor is less than 100%, the controller controls the attraction switch to close.

2. The electronic endoscope system with automatic water and air supply as claimed in claim 1, characterized in that: When the water supply switch and the air supply switch are integrally arranged, it is a water supply and air supply switch; the water supply and air supply switch has a water supply state and an air supply state.

3. An electronic endoscope system with automatic water and air supply as claimed in claim 1 or 2, characterized in that: The water delivery detection system also includes a first comparator, a first input end of the first comparator is connected to the mucosal proportion signal output end of the controller, a second input end of the first comparator is connected to a first threshold memory, and an output end of the first comparator is electrically connected to the control end of the water delivery switch.

4. The electronic endoscope system with automatic water and air supply as claimed in claim 1, characterized in that: The controller includes a second comparator and a third comparator; the first input end of the second comparator is connected to the signal output end of the air pressure sensor, the second input end of the second comparator is connected to the minimum threshold memory, and the output end of the second comparator is electrically connected to the control end of the air supply switch; the first input end of the third comparator is also connected to the signal output end of the air pressure sensor, the second input end of the third comparator is connected to the maximum threshold memory, and the output end of the third comparator is also electrically connected to the control end of the air supply switch.

5. The electronic endoscope system with automatic water and air supply as claimed in claim 2, characterized in that: The water and air supply switch is a two-position three-way solenoid valve having an air inlet interface, a water inlet interface and a fluid outlet, and water and air both flow out from the fluid outlet.

6. The electronic endoscope system with automatic water and air supply as claimed in claim 1, characterized in that: The attraction switch is a normally closed solenoid valve.

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