Water-gas switching device and endoscope

Abstract

The present application provides a water-gas switching device and an endoscope, wherein the endoscope includes a water-gas switching device and an actuator, the water-gas switching device includes a host, a liquid storage bottle, an air pump and a three-way valve, the host includes a first switching valve, a second switching valve and a diverter, an air outlet pipe is connected between the air pump and the first switching valve, an air inlet pipe is connected between the three-way valve and the first switching valve, and a water inlet pipe is connected between the three-way valve and the second switching valve, a water outlet pipe is connected between one end of the diverter and the liquid storage bottle, a sleeve is provided on the outer periphery of the water outlet pipe, the two ends of the sleeve are respectively connected to the diverter and the liquid storage bottle, the inner wall of the sleeve and the outer wall of the water outlet pipe form an air flow channel, the other end of the diverter is connected to a vent pipe between the first switching valve and the second switching valve, the vent pipe is connected to the sleeve, and the water pipe is connected to the water outlet pipe. By arranging the host, the liquid storage bottle, the air pump and the three-way valve to cooperate with each other, the production cost of the water-gas switching device is lower and it is more convenient to use.

Description

Technical Field

[0001] The present application belongs to the technical field of medical devices, and more specifically, to a water-gas switching device and an endoscope. Background Art

[0002] An endoscope is a medical device used to examine hollow organs in the human body. It can enter the human body through natural orifices or surgical incisions, and use optical lenses and mechanical devices to observe diseased tissues to facilitate the diagnosis and treatment of diseases.

[0003] The existing endoscope is provided with a water-gas switching device, which includes a joint, a liquid storage bottle and a gas storage bottle. The joint is provided with a liquid inlet, an air inlet and an injection port. A water pipe is connected between the liquid storage bottle and the liquid inlet, and an air pipe is connected between the gas storage bottle and the air inlet. The liquid storage bottle and the gas storage bottle are respectively equipped with air pumps. When one of the two air pumps is turned on, the liquid in the liquid storage bottle is discharged from the injection port. When the other of the two air pumps is turned on, the gas in the gas storage bottle is discharged from the injection port.

[0004] Since the liquid storage bottle and the gas storage bottle need to be equipped with air pumps respectively, the structure of the water-gas switching device is more complicated, resulting in higher production costs. In addition, when the water-gas switching device switches from outputting gas to outputting liquid, the water pipe is not filled with liquid. It is necessary to wait until the water pipe is filled with liquid before the liquid can be output. This process is time-consuming and inconvenient to use. Utility Model Content

[0005] One of the purposes of the embodiments of the present application is to provide a water-gas switching device and an endoscope to solve the technical problems in the prior art that the liquid storage bottle and the gas storage bottle of the water-gas switching device need to be respectively provided with air pumps, and it is time-consuming to switch from outputting gas to outputting liquid, which causes the water-gas switching device to have high production and manufacturing costs and inconvenient use.

[0006] To solve the above technical problems, in the first aspect, an embodiment of the present application provides a water-gas switching device, which includes a main unit, a liquid storage bottle, an air pump and a three-way valve; the main unit includes a first switching valve, a second switching valve and a diverter, an air outlet pipe is connected between the air pump and the first switching valve, an air inlet pipe is connected between the three-way valve and the first switching valve, and a water inlet pipe is connected between the three-way valve and the second switching valve; a water outlet pipe is connected between one end of the diverter and the liquid storage bottle, a sleeve is provided on the outer periphery of the water outlet pipe, two ends of the sleeve are respectively connected to the diverter and the liquid storage bottle, and the inner wall of the sleeve and the outer wall of the water outlet pipe form an air flow channel; a ventilation pipe is connected between the other end of the diverter and the first switching valve, and a water passing pipe is connected between the second switching valve, the ventilation pipe is communicated with the sleeve, and the water passing pipe is connected with the water outlet pipe.

[0007] The beneficial effect of the water-gas switching device provided by the present application is that: by setting a main unit, a liquid storage bottle, an air pump and a three-way valve to cooperate with each other, the liquid storage bottle is used to store liquid, the air pump is used to provide gas, and the opening and closing of the first switching valve, the second switching valve and the three-way valve are controlled, so that the three-way valve can output the liquid in the liquid storage bottle or output the gas provided by the air pump. Compared with the water-gas switching device in the prior art, the present application does not need to set more air pumps. A single air pump can not only provide gas to be output from the three-way valve, but also pressurize the liquid storage bottle so that the liquid in the liquid storage bottle can be output from the three-way valve. The structure of the water-gas switching device is simpler and the production cost is lower; when the water-gas switching device switches from outputting liquid to outputting gas, the residual air pressure in the liquid storage bottle can make the liquid in the liquid storage bottle continue to flow into the water inlet pipe, and the two ends of the water inlet pipe are closed by the three-way valve and the second switching valve, so that more liquid can be stored in the water inlet pipe, so that when the water-gas switching device switches from outputting gas to outputting liquid, the time required to fill the water inlet pipe with liquid can be reduced, and the water-gas switching device outputs liquid more timely and is more convenient to use.

[0008] In a feasible technical solution, the diverter includes a cylinder, an air flow duct and a water flow duct, the two ends of the air flow duct are respectively connected to the cylinder and the ventilation pipe, the water flow duct runs through the cylinder, and the two ends of the water flow duct are respectively connected to the water outlet pipe and the water passage pipe.

[0009] In a feasible technical solution, one end of the water outlet pipe connected to the liquid storage bottle is placed at the bottom of the liquid storage bottle, and one end of the sleeve connected to the liquid storage bottle is placed at the top of the liquid storage bottle.

[0010] In a feasible technical solution, the three-way valve includes a valve body, a switching switch arranged on the valve body, and three connectors, two of the three connectors are respectively connected to the air inlet pipe and the water inlet pipe, and the switching switch is used to control another one of the three connectors to connect the air inlet pipe or the water inlet pipe.

[0011] In a feasible technical solution, the host further includes a control panel and a circuit board, and the first switching valve, the second switching valve, the control panel and the air pump are all electrically connected to the circuit board.

[0012] In a feasible technical solution, the main unit further includes a support seat, the first switching valve, the second switching valve and the air pump are all installed at the bottom of the support seat, and the diverter is installed on the side wall of the support seat.

[0013] In a feasible technical solution, the main machine further comprises a storage rack, the storage rack is connected to the side wall of the support seat, and the storage rack is formed with a receiving groove for placing the liquid storage bottle.

[0014] In a second aspect, an embodiment of the present application further provides an endoscope, comprising an actuator and the above-mentioned water-gas switching device, wherein the three-way valve is connected to the actuator.

[0015] The beneficial effect of the endoscope provided by the present application is that by providing the above-mentioned water-gas switching device, the structure of the endoscope is simpler, the production cost is lower, the liquid output is more timely, and the use is more convenient.

[0016] In a feasible technical solution, the actuator includes a handle, a cannula and a probe, the cannula and the three-way valve are respectively connected to two sides of the handle, and the probe is installed at one end of the cannula away from the handle.

[0017] In a feasible technical solution, the actuator further includes a rocker, which is mounted on a side of the handle facing away from the cannula, and is used to drive the probe to turn. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 A schematic diagram of the structure of a water-gas switching device provided in an embodiment of the present application;

[0020] Figure 2 It is a top view of the water-gas switching device in the embodiment of the present application;

[0021] Figure 3 This is a disassembled diagram of the flow divider, the water outlet pipe, the sleeve, the vent pipe and the water pipe in the embodiment of the present application;

[0022] Figure 4 A schematic diagram of the structure of an endoscope provided in an embodiment of the present application.

[0023] Among them, the reference numerals in the figure are:

[0024] 10. Host; 11. First switching valve; 12. Second switching valve; 13. Diverter; 131. Cylinder; 132. Air flow conduit; 133. Water flow conduit; 14. Ventilation pipe; 15. Water pipe; 16. Control panel; 17. Circuit board; 18. Support seat; 19. Storage rack;

[0025] 20. Liquid storage bottle; 21. Water outlet pipe; 22. Casing;

[0026] 30. air pump; 31. air outlet pipe; 32. connecting piece;

[0027] 40. Three-way valve; 41. Air inlet pipe; 42. Water inlet pipe; 43. Valve body; 44. Switch; 45. Connector;

[0028] 50. Actuator; 51. Handle; 52. Cannula; 53. Probe; 54. Joystick. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0031] It should be understood that the terms "length", "width", "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 drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] The following is a detailed description with reference to the accompanying drawings and embodiments:

[0034] Please also read Figures 1 to 3The embodiment of the present application provides a water-gas switching device, which includes a main unit 10, a liquid storage bottle 20, an air pump 30 and a three-way valve 40. The main unit 10 includes a first switching valve 11, a second switching valve 12 and a diverter 13. An air outlet pipe 31 is connected between the air pump 30 and the first switching valve 11. An air inlet pipe 41 is connected between the three-way valve 40 and the first switching valve 11, and a water inlet pipe 42 is connected between the three-way valve 40 and the second switching valve 12. One end of the diverter 13 is connected to the storage bottle 20. A water outlet pipe 21 is connected between the liquid bottles 20, and a sleeve 22 is sleeved on the outer periphery of the water outlet pipe 21. Both ends of the sleeve 22 are respectively connected to the diverter 13 and the liquid storage bottle 20. The inner wall of the sleeve 22 and the outer wall of the water outlet pipe 21 form an air flow channel. The other end of the diverter 13 is connected to the first switching valve 11 via a vent pipe 14, and is connected to the second switching valve 12 via a water pipe 15. The vent pipe 14 is communicated with the sleeve 22, and the water pipe 15 is communicated with the water outlet pipe 21.

[0035] By arranging the host 10, the liquid storage bottle 20, the air pump 30 and the three-way valve 40 to cooperate with each other, the liquid storage bottle 20 is used to store liquid, and the air pump 30 is used to provide gas, and the opening and closing of the first switching valve 11, the second switching valve 12 and the three-way valve 40 are controlled, the three-way valve 40 can output the liquid in the liquid storage bottle 20 or output the gas generated by the air pump 30; there is no need to set up more air pumps 30, and a single air pump 30 can be used to provide gas to be output from the three-way valve 40, and can also pressurize the liquid storage bottle 20 so that the liquid in the liquid storage bottle 20 is output from the three-way valve 40, and the water vapor The structure of the switching device is relatively simple and the production cost is lower; when the water-gas switching device switches from outputting liquid to outputting gas, the residual air pressure in the liquid storage bottle 20 can cause the liquid in the liquid storage bottle 20 to continue to flow into the water inlet pipe 42. By using the three-way valve 40 and the second switching valve 12 to close both ends of the water inlet pipe 42, more liquid can be stored in the water inlet pipe 42, thereby reducing the time required for the water inlet pipe 42 to be filled with liquid when the water-gas switching device switches from outputting gas to outputting liquid. The water-gas switching device can output liquid more timely and is more convenient to use.

[0036] In application, the liquid stored in the liquid storage bottle 20 may be pure water or cleaning liquid, and the gas provided by the air pump 30 may be carbon dioxide gas or air.

[0037] Specifically, when the water-gas switching device needs to output gas, the first switching valve 11 connects the air outlet pipe 31 and the air inlet pipe 41 and closes the ventilation pipe 14, the second switching valve 12 closes the water inlet pipe 42 and the water passage pipe 15, and the air pump 30 is started. The gas passes through the air outlet pipe 31, the first switching valve 11, and the air inlet pipe 41 in sequence and is output from the three-way valve 40.

[0038] Specifically, when the water-gas switching device needs to output liquid, the first switching valve 11 connects the air outlet pipe 31 and the vent pipe 14 and closes the air inlet pipe 41, the second switching valve 12 connects the water inlet pipe 42 and the water passage 15, and the air pump 30 is started. The gas passes through the air outlet pipe 31, the first switching valve 11, the vent pipe 14, the diverter 13, and the water outlet pipe 21 in sequence and enters the liquid storage bottle 20. After the air pressure in the liquid storage bottle 20 increases, the liquid in the liquid storage bottle 20 is driven to pass through the water outlet pipe 21, the diverter 13, the water passage 15, the second switching valve 12, and the water inlet pipe 42 in sequence and is output from the three-way valve 40.

[0039] In one embodiment, please refer to Figures 1 to 3 The flow diverter 13 includes a cylinder 131, an air flow conduit 132 and a water flow conduit 133. The two ends of the air flow conduit 132 are respectively connected to the cylinder 131 and the ventilation pipe 14. The water flow conduit 133 runs through the cylinder 131. The two ends of the water flow conduit 133 are respectively connected to the water outlet pipe 21 and the water passage pipe 15.

[0040] In application, the gas can enter the liquid storage bottle 20 through the air flow channel of the ventilation pipe 14, the air flow conduit 132, the cylinder 131, and the sleeve 22 in sequence. After the air pressure in the liquid storage bottle 20 increases, the liquid in the liquid storage bottle 20 flows out from the water pipe 15 through the water outlet pipe 21 and the water flow conduit 133 in sequence. The cylinder 131 can isolate the liquid transportation from the gas transportation by connecting the water flow conduit 133 with the air flow conduit 132 to ensure the stability of the liquid transportation and the gas transportation.

[0041] Specifically, a cavity is formed inside the cylinder 131, one side of the cylinder 131 has a first through hole and a second through hole arranged side by side, the other side of the cylinder 131 has an opening, one end of the air flow duct 132 is installed at the first through hole, and the water flow duct 133 passes through the second through hole and the opening. The diverter 13 has a simple structure and is more convenient to produce and assemble.

[0042] In one embodiment, please refer to Figures 1 to 3 One end of the water outlet pipe 21 connected to the liquid storage bottle 20 is placed at the bottom of the liquid storage bottle 20, and one end of the sleeve 22 connected to the liquid storage bottle 20 is placed at the top of the liquid storage bottle 20.

[0043] In application, the water outlet pipe 21 and the sleeve 22 are arranged in this way, which can ensure that the air pressure in the liquid storage bottle 20 increases faster and the liquid is transported more timely.

[0044] In one embodiment, please refer to Figures 1 to 3 The three-way valve 40 includes a valve body 43, a switching switch 44 and three connectors 45 arranged on the valve body 43, two of the three connectors 45 are respectively connected to the air inlet pipe 41 and the water inlet pipe 42, and the switching switch 44 is used to control another one of the three connectors 45 to conduct the air inlet pipe 41 or the water inlet pipe 42.

[0045] In use, each joint 45 is sealed and connected to the valve body 43, and the interior of each joint 45 is connected to the interior of the valve body 43. One end of the switching switch 44 is rotatably assembled on the valve body 43, and the other end of the switching switch 44 is twisted by the user to conveniently conduct the air inlet pipe 41 or the water inlet pipe 42.

[0046] In one embodiment, please refer to Figures 1 to 3 The host 10 further includes a control panel 16 and a circuit board 17 , and the first switching valve 11 , the second switching valve 12 , the control panel 16 and the air pump 30 are all electrically connected to the circuit board 17 .

[0047] In application, the control panel 16 is provided with a plurality of buttons, each of which can send different commands to the circuit board 17 to control the opening and closing of the first switching valve 11, the second switching valve 12 and the air pump 30, thereby driving the three-way valve 40 to output gas or liquid for more precise control.

[0048] In one embodiment, please refer to Figures 1 to 3 The host 10 also includes a support seat 18 , the first switching valve 11 , the second switching valve 12 and the air pump 30 are all installed at the bottom of the support seat 18 , and the diverter 13 is installed on the side wall of the support seat 18 .

[0049] In application, the air inlet pipe 41, the water inlet pipe 42 and the cylinder 131 all penetrate the side wall of the support seat 18, which can reduce the swing of the air inlet pipe 41 during gas transportation and the water inlet pipe 42 during liquid transportation, and the three-way valve 40 outputs gas or liquid more smoothly.

[0050] In one embodiment, please refer to Figures 1 to 3 The host 10 further includes a shelf 19 , which is connected to the side wall of the support base 18 , and the shelf 19 is formed with a receiving groove for placing the liquid storage bottle 20 .

[0051] In application, by placing the liquid storage bottle 20 on the storage rack 19, the entire water-gas switching device is more convenient to carry and transport.

[0052] Please also read Figures 1 to 4 The present application also provides an endoscope, including an actuator 50 and the above-mentioned water-gas switching device, and a three-way valve 40 is connected to the actuator 50.

[0053] In application, the endoscope is equipped with a water-gas switching device to output liquid more timely and more convenient to use.

[0054] In one embodiment, please refer to Figures 1 to 4The actuator 50 includes a handle 51 , a cannula 52 and a probe 53 . The cannula 52 and the three-way valve 40 are respectively connected to two sides of the handle 51 , and the probe 53 is installed at one end of the cannula 52 away from the handle 51 .

[0055] In use, the handle 51 is for the operator to hold, the cannula 52 can enter the human body through the natural orifice of the human body or through a surgical incision, and the probe 53 is used to observe the tissues in the human body to facilitate the operator to examine the organs in the human body.

[0056] In one embodiment, please refer to Figures 1 to 4 The actuator 50 further includes a rocker 54 , which is mounted on a side of the handle 51 away from the cannula 52 , and is used to drive the probe 53 to turn.

[0057] In application, by operating the joystick 54 to drive the probe 53 to turn, the operator can observe more viewing angles without rotating the cannula 52, and the use of the endoscope is more convenient.

[0058] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A water-gas switching device, characterized in that: It comprises a main machine (10), a liquid storage bottle (20), an air pump (30) and a three-way valve (40); The main unit (10) comprises a first switching valve (11), a second switching valve (12) and a flow divider (13); an air outlet pipe (31) is connected between the air pump (30) and the first switching valve (11); an air inlet pipe (41) is connected between the three-way valve (40) and the first switching valve (11), and a water inlet pipe (42) is connected between the three-way valve (40) and the second switching valve (12); A water outlet pipe (21) is connected between one end of the flow dividing member (13) and the liquid storage bottle (20); a sleeve (22) is sleeved on the outer periphery of the water outlet pipe (21); two ends of the sleeve (22) are respectively connected to the flow dividing member (13) and the liquid storage bottle (20); an inner wall of the sleeve (22) and an outer wall of the water outlet pipe (21) form an air flow channel; A vent pipe (14) is connected between the other end of the flow divider (13) and the first switching valve (11), and a water pipe (15) is connected between the other end and the second switching valve (12); the vent pipe (14) is in communication with the sleeve (22), and the water pipe (15) is in communication with the water outlet pipe (21).

2. The water-gas switching device according to claim 1, characterized in that: The flow divider (13) comprises a cylinder (131), an air flow conduit (132) and a water flow conduit (133); the two ends of the air flow conduit (132) are respectively connected to the cylinder (131) and the ventilation pipe (14); the water flow conduit (133) passes through the cylinder (131); and the two ends of the water flow conduit (133) are respectively connected to the water outlet pipe (21) and the water passage pipe (15).

3. The water-gas switching device according to claim 1, characterized in that: The end of the water outlet pipe (21) connected to the liquid storage bottle (20) is placed at the bottom of the liquid storage bottle (20), and the end of the sleeve (22) connected to the liquid storage bottle (20) is placed at the top of the liquid storage bottle (20).

4. The water-gas switching device according to claim 1, characterized in that: The three-way valve (40) comprises a valve body (43), a switching switch (44) and three connectors (45) arranged on the valve body (43), two of the three connectors (45) being respectively connected to the air inlet pipe (41) and the water inlet pipe (42), and the switching switch (44) being used to control another one of the three connectors (45) to conduct the air inlet pipe (41) or the water inlet pipe (42).

5. The water-gas switching device according to claim 1, characterized in that: The host (10) further comprises a control panel (16) and a circuit board (17); the first switching valve (11), the second switching valve (12), the control panel (16) and the air pump (30) are all electrically connected to the circuit board (17).

6. The water-gas switching device according to claim 1, characterized in that: The main unit (10) further comprises a support seat (18), the first switching valve (11), the second switching valve (12) and the air pump (30) are all installed at the bottom of the support seat (18), and the diverter (13) is installed on the side wall of the support seat (18).

7. The water-gas switching device according to claim 6, characterized in that: The main unit (10) further comprises a storage rack (19), wherein the storage rack (19) is connected to the side wall of the support seat (18), and the storage rack (19) is formed with a receiving groove for placing the liquid storage bottle (20).

8. An endoscope, characterized in that: It comprises an actuator (50) and the water-gas switching device according to any one of claims 1 to 7, wherein the three-way valve (40) is connected to the actuator (50).

9. The endoscope according to claim 8, characterized in that The actuator (50) comprises a handle (51), a cannula (52) and a probe (53); the cannula (52) and the three-way valve (40) are respectively connected to two sides of the handle (51); and the probe (53) is installed at one end of the cannula (52) away from the handle (51).

10. The endoscope according to claim 9, characterized in that The actuator (50) further comprises a rocker (54), wherein the rocker (54) is mounted on a side of the handle (51) away from the cannula (52), and the rocker (54) is used to drive the probe (53) to turn.

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