Carbon dioxide supply device for endoscope

Abstract

The utility model provides a carbon dioxide supply device for an endoscope, and relates to the technical field of medical instruments. Comprising a gas inlet connected with a gas storage tank, a gas outlet connected with a gas collection bottle, a pressure reduction module for adjusting the pressure of gas entering through the gas inlet to a preset pressure value, an electromagnetic valve for controlling opening and closing of the gas outlet, and a heating module for heating the gas flowing to the gas outlet, the carbon dioxide supply device comprises a gas outlet, a flow detection module for detecting the flow of gas flowing to the gas outlet, and a main control module, and further comprises a backflow detection module which is arranged close to the gas outlet and is used for detecting whether backflow water enters the gas outlet, and the backflow detection module is additionally arranged at the front section of the gas outlet of the carbon dioxide supply device. Water flowing backwards into the carbon dioxide supply device is isolated at the air outlet part of the carbon dioxide supply device, so that an internal main board or other key parts cannot be damaged, and the damage cost is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a carbon dioxide delivery device for endoscopes. Background Technology

[0002] During endoscopic diagnosis and treatment, gas is injected into the body through the endoscope's air inlet to relax the gastrointestinal tract and other parts, allowing the endoscope to pass smoothly through the gastrointestinal lumen for detailed observation of lesions. The gas injected is usually air; however, with the development of endoscopic technology, high-frequency electrotherapy is increasingly used in endoscopic treatments, posing a risk of tissue burns when using air as the medium. Therefore, carbon dioxide is now more commonly used as the medium in endoscopic treatments.

[0003] In actual use, the carbon dioxide delivery device is connected to a steel cylinder storing carbon dioxide at one end and to an endoscope at the other end through a collection bottle. However, the collection bottle contains water, which may cause the water in the collection bottle to backflow into the carbon dioxide delivery device, resulting in damage to its internal main board or other critical components. Since critical components are relatively expensive, the cost of damage is high. Utility Model Content

[0004] This utility model discloses a carbon dioxide delivery device for endoscopes, which solves the problem that water in the collection bottle may flow back into the carbon dioxide delivery device, causing damage to its internal mainboard or other critical components. By adding a backflow detection module to the front of the carbon dioxide delivery device's outlet, water that flows back into the carbon dioxide delivery device is isolated at its outlet, preventing damage to the internal mainboard or other critical components.

[0005] To achieve the above objectives, the technical solution of this utility model is specifically implemented as follows:

[0006] This utility model discloses a carbon dioxide gas delivery device for an endoscope, including an air inlet connected to a gas storage tank, an air outlet connected to a gas collection bottle, a pressure reducing module that adjusts the pressure of the gas entering through the air inlet to a preset pressure value, a solenoid valve that controls the opening and closing of the air outlet, a heating module that heats the gas flowing to the air outlet, a flow detection module that detects the flow rate of the gas flowing to the air outlet, and a main control module. It also includes a backflow detection module located near the air outlet that detects whether backflow water enters.

[0007] Furthermore, the solenoid valve, flow detection module, and backflow detection module are all connected to the main control module.

[0008] Furthermore, the backflow detection module includes a water collection device and a water inlet detection device. The water collection device is used to collect water that flows back into the carbon dioxide delivery device, and the water inlet detection device is connected to the main control module.

[0009] Furthermore, the carbon dioxide delivery device also includes an alarm module, which is connected to the main control module. When the water inlet detection device detects water inlet, the alarm module issues an alarm.

[0010] Furthermore, the water collection device includes several baffles.

[0011] Furthermore, the water ingress detection device includes two parallel metal plates, both of which are connected to the main control module.

[0012] Furthermore, the pressure reduction module includes a first pressure reducer and a second pressure reducer. The first pressure reducer is used to adjust the pressure of the gas entering through the air inlet to a preset pressure value; the second pressure reducer is used to adjust the pressure of the gas flowing out through the first pressure reducer to a preset pressure value.

[0013] Beneficial technical effects:

[0014] 1. This utility model discloses a carbon dioxide delivery device for an endoscope, including an air inlet connected to a gas storage tank, an air outlet connected to a gas collection bottle, a pressure reducing module that adjusts the pressure of the gas entering through the air inlet to a preset pressure value, a solenoid valve that controls the opening and closing of the air outlet, a heating module that heats the gas flowing to the air outlet, a flow detection module that detects the flow rate of the gas flowing to the air outlet, and a main control module. It also includes a backflow detection module located near the air outlet to detect whether backflow water enters. By adding a backflow detection module in front of the air outlet of the carbon dioxide delivery device, water that has flowed back into the carbon dioxide delivery device is isolated at its air outlet, which will not damage the internal main board or other key components, effectively reducing damage costs.

[0015] 2. In this utility model, the backflow detection module includes a water collection device and a water inlet detection device. The water collection device is used to collect water that flows back into the carbon dioxide delivery device. The water inlet detection device is connected to the main control module. The carbon dioxide delivery device also includes an alarm module. The alarm module is connected to the main control module. When the water inlet detection device detects water inlet, the alarm module issues an alarm, which can promptly remind the user that water has entered the machine and that timely maintenance is required.

[0016] 3. In this utility model, the water collection device includes several baffles. When the backflowing water enters through the outlet of the carbon dioxide gas delivery device, it encounters the obstruction of the baffles and flows along the baffles to the bottom, thus isolating the backflowing water in the carbon dioxide gas delivery device in its final gas outlet section. The water inlet detection device includes two parallel metal plates. When water flows back into the gas delivery device, an electric current is generated between the two metal plates, thereby realizing water inlet detection. The backflow detection module has a simple structure and is easy to implement. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a schematic diagram of the overall structure of a carbon dioxide delivery device for an endoscope according to the present invention.

[0019] Figure 2 This is a schematic diagram of the backflow detection module in a carbon dioxide delivery device for an endoscope according to the present invention.

[0020] Among them, 1-air inlet, 2-air outlet, 31-first pressure reducer, 32-second pressure reducer, 4-solenoid valve, 5-heating module, 6-flow detection module, 7-main control module, 8-backflow detection module, 81-water collection device, 82-water inlet detection device. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0022] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0023] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a predetermined orientation or be constructed and operated in a predetermined orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0024] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0025] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0026] In practical use, the carbon dioxide delivery device for endoscopes is used in conjunction with a collection and delivery bottle, which is usually filled with water. During actual use, the user may accidentally pour water from the collection and delivery bottle back into the carbon dioxide delivery device through the gas outlet, which can damage the components inside the delivery device (such as the main board). The important components inside the carbon dioxide delivery device are relatively expensive, resulting in very high costs due to damage. In order to address this problem, this utility model discloses a carbon dioxide delivery device for endoscopes.

[0027] This utility model discloses a carbon dioxide device for an endoscope, see [link to relevant documentation]. Figure 1 The device includes an inlet 1 connected to a gas storage tank, an outlet 2 connected to a gas collecting bottle, a pressure reducing module that adjusts the gas pressure entering through the inlet 1 to a preset pressure value, a solenoid valve 4 that controls the opening and closing of the outlet 2, a heating module 5 that heats the gas flowing to the outlet 2, a flow detection module 6 that detects the gas flow rate to the outlet 2, and a main control module 7. It also includes a backflow detection module 8 located near the outlet 2 to detect whether backflow water has entered. Preferably, the pressure reducing module includes a first pressure reducer 31 and a second pressure reducer 32. The first pressure reducer 31 is used to adjust the gas pressure entering through the inlet 1 to a preset pressure value, and the second pressure reducer 32 is used to adjust the gas pressure flowing out through the first pressure reducer 31 to a preset pressure value. The solenoid valve 4, the flow detection module 6, and the backflow detection module 8 in the carbon dioxide delivery device are all connected to the main control module 7. The main control module 7 controls the opening and closing of the solenoid valve 4, receives real-time gas flow rate data to the outlet 2 sent by the flow detection module 6, and receives detection results from the backflow detection module 8 indicating whether backflow water has entered.

[0028] As one embodiment of this utility model, the backflow detection module 8 includes a water collection device 81 and a water inlet detection device 82, see [link]. Figure 2 The water collection device 81 is used to collect water that flows back into the carbon dioxide delivery device. The water collection device 81 is located near the outlet 2 of the carbon dioxide delivery device. The water collection device 81 may include several baffles. When the backflowing water enters through the outlet 2 of the carbon dioxide delivery device, it will be blocked by the baffles and flow down to the bottom. In this way, the water flowing back into the carbon dioxide delivery device is isolated in the final section of its internal outlet, preventing damage to internal critical components (such as the motherboard, which is usually expensive) and greatly reducing the cost of damage. The water ingress detection device 82 is connected to the main control module 7 and is used to detect whether water has entered the carbon dioxide delivery device. The result of whether water has entered is sent to the main control module 7. The water ingress detection device 82 may include two parallel metal plates. Both metal plates are connected to the main control module 7, which provides power to them. When water flows back into the delivery device, a current will be generated between the two metal plates, thereby realizing water ingress detection.

[0029] In a preferred embodiment of this utility model, the carbon dioxide delivery device also includes an alarm module connected to the main control module 7. If water flows back into the carbon dioxide delivery device, the backflowing water will be blocked by the baffle and flow down to the bottom. The water ingress detection device 82 located at the bottom of the carbon dioxide delivery device will detect that there is water inside the carbon dioxide delivery device and send the result of water ingress to the main control module 7. The main control module 7 controls the alarm module to issue an alarm to promptly remind the user that water has entered the carbon dioxide delivery device and that timely maintenance is required.

[0030] The carbon dioxide delivery device for endoscopes disclosed in this utility model has a water collection device 81 and a water ingress detection device 82 installed near its outlet 2. The water collection device 81 may include several baffles. When backflowing water enters through the outlet 2 of the carbon dioxide delivery device, it will be blocked by the baffles and flow down to the bottom. This isolates the water that has backflowed into the carbon dioxide delivery device at the final outlet section inside, preventing damage to internal critical components (such as the motherboard, which is usually expensive) and greatly reducing the cost of damage. When water backflows into the delivery device, the water ingress detection device 82 installed at the bottom of the carbon dioxide delivery device will detect the water inside the carbon dioxide delivery device and the alarm module will sound an alarm to promptly remind the user that water has entered the carbon dioxide delivery device and that timely maintenance is required.

[0031] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] The above embodiments are merely descriptions of preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A carbon dioxide delivery device for an endoscope, comprising an inlet (1) connected to a gas storage tank, an outlet (2) connected to a gas collection bottle, a pressure reducing module for adjusting the pressure of gas entering through the inlet (1) to a preset pressure value, a solenoid valve (4) for controlling the opening and closing of the outlet (2), a heating module (5) for heating the gas flowing to the outlet (2), a flow detection module (6) for detecting the flow rate of gas flowing to the outlet (2), and a main control module (7), characterized in that, It also includes a backflow detection module (8) located near the air outlet (2) to detect whether backflow water is entering.

2. The carbon dioxide delivery device for an endoscope according to claim 1, characterized in that, The solenoid valve (4), flow detection module (6), and backflow detection module (8) are all connected to the main control module (7).

3. A carbon dioxide delivery device for an endoscope according to claim 1, characterized in that, The backflow detection module (8) includes a water collection device (81) and an inlet water detection device (82). The water collection device (81) is used to collect water that flows back into the carbon dioxide delivery device, and the inlet water detection device (82) is connected to the main control module (7).

4. A carbon dioxide delivery device for an endoscope according to claim 3, characterized in that, The carbon dioxide delivery device also includes an alarm module, which is connected to the main control module (7). When the water inlet detection device (82) detects water inlet, the alarm module issues an alarm.

5. A carbon dioxide delivery device for an endoscope according to claim 3, characterized in that, The water collection device (81) includes several baffles.

6. A carbon dioxide delivery device for an endoscope according to claim 3, characterized in that, The water inlet detection device (82) includes two parallel metal plates, both of which are connected to the main control module (7).

7. A carbon dioxide delivery device for an endoscope according to claim 1, characterized in that, The pressure reduction module includes a first pressure reducer (31) and a second pressure reducer (32). The first pressure reducer (31) is used to adjust the pressure of the gas entering through the air inlet (1) to a preset pressure value; the second pressure reducer (32) is used to adjust the pressure of the gas flowing out through the first pressure reducer (31) to a preset pressure value.

Images