Endoscope

Abstract

The endoscope comprises a plug part, an operation part, a head end part, a first connecting pipeline and a second connecting pipeline, the plug part comprises a suction pipe, an air inlet pipe, a liquid inlet pipe and a circuit board, the plug part is provided with a first plugging end, and the operation part comprises an operation mechanism, a water-air valve and a suction valve. The head end part comprises a bench clamp, a first working pipeline, a second working pipeline and a lens, two ends of the first connecting pipeline are respectively inserted into the plug part and the operation part, and two ends of the second connecting pipeline are respectively inserted into the operation part and the head end part. The endoscope is simple in structure and convenient to assemble and disinfect, and part of the structure of the endoscope can be selectively replaced according to the use frequency, so that the use safety of the endoscope is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical treatment, in particular to an endoscope. Background Art

[0002] Endoscope is a commonly used instrument in clinical medical diagnosis and treatment. It can enter the body through the body's inherent mouth, hole, orifice, or enter the body through an incision made by surgery. Through the endoscope, doctors can directly observe lesions in the body, which is more conducive to the doctor's diagnosis and treatment of the disease.

[0003] In recent years, due to the increasing number of gastrointestinal examinations and surgeries in hospitals, in clinical practice, after the repetitive endoscope is disinfected, the internal parts are often not thoroughly disinfected and cleaned properly. The cleaning and disinfection cannot be 100%, and reuse is likely to cause the risk of bacterial cross infection to patients. The cleaning and disinfection process methods usually used for repetitive endoscopes are cumbersome, the equipment process is complex, and the degree of specialization is high. The specialization of disinfection will also bring certain technical limitations and high costs, which reduce the convenience, safety and cost-effectiveness of the reuse process of endoscopes. Therefore, it is necessary to change the repetitive endoscope body to make the endoscope body more convenient and safe when used. Utility Model Content

[0004] The utility model aims to provide an endoscope, which has a simple structure, is easy to assemble and disinfect, and can selectively replace part of the structure of the endoscope according to the number of uses, thereby helping to improve the safety of the endoscope.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The utility model discloses an endoscope, comprising: a plug part, the plug part comprises a suction tube, an air inlet tube, a liquid inlet tube and a circuit board, the plug part has a first plug end; an operating part, the operating part comprises an operating mechanism, a water and gas valve and a suction valve, the liquid inlet of the water and gas valve is connected with the liquid inlet tube, the air inlet of the water and gas valve is connected with the air inlet tube, the suction outlet of the suction valve is connected with the suction tube, the operating part also has a second plug end and a third plug end; a head end, the head end comprises a vise, a first working pipeline, a second working pipeline and a lens, the first working pipeline is communicated with the air outlet of the water and gas valve and the liquid outlet of the water and gas valve, the second working pipeline is communicated with the suction inlet of the suction valve, the bench vise is connected to the operating mechanism through a driving wire, the operating part also has a fourth plug end, the lens is electrically connected to the circuit board; a first connecting pipeline, the two ends of the first connecting pipeline are respectively plugged into the first plug end and the second plug end; a second connecting pipeline, the two ends of the second connecting pipeline are respectively plugged into the third plug end and the fourth plug end.

[0007] In some embodiments, the plug part also includes: a plug shell, the plug shell having a first installation cavity; a suction connector, the suction connector is plugged into the plug shell and connected to the suction tube; a water-gas confluence valve, the water-gas confluence valve is installed in the first installation cavity, the water-gas confluence valve has a gas channel and a liquid channel; the gas channel is connected to the air inlet of the water-gas valve, and the liquid channel is connected to the liquid inlet of the water-gas valve; an air inlet connector, the air inlet connector is plugged into the plug shell and connected to the gas channel.

[0008] In some specific embodiments, the plug housing includes a first shell and a second shell that are interlocked.

[0009] In some embodiments, the operating part also includes: an operating shell, the operating shell having a second installation cavity, the second installation cavity having a first socket and a second socket, the water vapor valve and the suction valve being respectively plugged into the first socket and the second socket; a sealing cover, the sealing cover being buckled on the operating shell and used to seal the connection position between the water vapor valve, the suction valve and the operating shell.

[0010] In some specific embodiments, the operating shell includes a shell body and a first plug-in sleeve and a second plug-in sleeve plugged into the shell body, and the first plug-in sleeve and the second plug-in sleeve respectively form the second plug-in end and the third plug-in end.

[0011] In some embodiments, the first connecting pipeline includes a first protective outer skin and a first pipeline, a second pipeline and a third pipeline arranged in the first protective outer skin; the two ends of the first pipeline are respectively connected to the air inlet pipe and the air inlet port; the two ends of the second pipeline are respectively connected to the liquid inlet pipe and the air inlet pipe; the two ends of the third pipeline are respectively connected to the suction pipe and the suction outlet.

[0012] In some embodiments, the second connecting pipeline includes a second protective outer skin and a fourth pipeline, a fifth pipeline, a water-gas three-way valve and a sixth pipeline arranged in the second protective outer skin; the two ends of the fourth pipeline are respectively connected to the gas outlet and the first port of the water-gas three-way valve; the two ends of the fifth pipeline are respectively connected to the liquid outlet and the second port of the water-gas three-way valve; the third port of the water-gas three-way valve is connected to the first working pipeline; the two ends of the sixth pipeline are respectively connected to the second working pipeline and the suction inlet.

[0013] In some specific embodiments, the operating part further includes a three-way connecting valve, a first interface of the three-way connecting valve is connected to the external environment, a second interface is connected to the sixth pipeline, and a third interface is connected to the second working pipeline.

[0014] In some embodiments, the head end portion also includes: a head end seat, the vise and the lens are both disposed in the head end seat, and the head end seat has an opening connected to the first working pipeline and the second working pipeline; a snake bone, the two ends of the snake bone respectively cooperate with the vise and the operating mechanism, and the snake bone is sleeved on the first working pipeline and the second working pipeline; a protective pipeline, the protective pipeline is sleeved on the snake bone, one end of the protective pipeline is connected to the head end seat, and the other end forms the fourth plug end.

[0015] In some embodiments, the head end seat includes: a seat body; a head end cap, which is sleeved on the seat body; and a connecting ring, one end of which is connected to the seat body and the other end is connected to the protective pipeline.

[0016] The beneficial effects of the endoscope of the utility model are as follows: the plug part and the operating part are connected through the first connecting pipeline, and the two ends of the first connecting pipeline are respectively plugged into the first plug-in end of the plug part and the second plug-in end of the operating part, the operating part and the head end are connected through the second connecting pipeline, and the two ends of the second connecting pipeline are respectively plugged into the third plug-in end of the operating part and the fourth plug-in end of the head end, the plug-in connection method has a simple structure, is convenient for assembly and disinfection, and can selectively replace any part of the plug part, the operating part and the head end according to the number of uses, which is conducive to improving the safety of the use of the endoscope. At the same time, in the actual assembly process, the liquid inlet of the water and gas valve is connected to the liquid inlet pipe, the air inlet of the water and gas valve is connected to the air inlet pipe, the suction outlet of the suction valve is connected to the suction pipe, the second working pipeline is connected to the suction inlet of the suction valve, and the first working pipeline is connected to the air outlet of the water and gas valve and the liquid outlet of the water and gas valve to complete the components of the working channel of the entire endoscope, which has a simple structure and is convenient for installation and disassembly, which is further conducive to improving the safety of the use of the endoscope.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an endoscope according to an embodiment of the utility model;

[0019] Figure 2 It is a partial structural schematic diagram of the plug part of an embodiment of the utility model;

[0020] Figure 3 It is a partial structural schematic diagram of the operating part of an embodiment of the utility model;

[0021] Figure 4 It is a partial structural schematic diagram of the head end portion of an embodiment of the utility model;

[0022] Figure 5 This is a schematic diagram of the connection pipeline of the water and gas valve of the embodiment of the utility model;

[0023] Figure 6 It is a schematic diagram of the connection pipeline of the suction valve of the embodiment of the utility model.

[0024] Reference numerals:

[0025] 100, plug part; 110, suction tube; 120, air inlet pipe; 130, liquid inlet pipe; 140, circuit board; 150, first plug end; 160, plug housing; 161, first housing; 162, second housing; 170, suction connector; 180, water-gas confluence valve; 190, air inlet connector;

[0026] 200, operating part; 210, operating mechanism; 220, water and gas valve; 221, air inlet; 222, liquid inlet; 223, air outlet; 224, liquid outlet; 230, suction valve; 231, suction inlet; 232, suction outlet; 240, second plug-in terminal; 250, third plug-in terminal; 260, operating housing; 270, sealing cover; 280, three-way connecting valve;

[0027] 300, head end; 310, bench vise; 320, first working pipeline; 330, second working pipeline; 340, lens; 350, fourth plug-in end; 360, head end seat; 361, seat body; 362, head end cap; 363, connecting ring; 370, snake bone; 380, protection pipeline;

[0028] 400, first connecting pipeline; 410, first pipeline; 420, second pipeline; 430, third pipeline;

[0029] 500, second connecting pipeline; 510, fourth pipeline; 520, fifth pipeline; 530, water-gas three-way valve; 540, sixth pipeline. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0031] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0034] The utility model discloses an endoscope, such as Figure 1 As shown, the endoscope of this embodiment includes a plug part 100, an operating part 200, a head end part 300, a first connecting pipeline 400 and a second connecting pipeline 500. The plug part 100 includes a suction tube 110, an air inlet pipe 120, a liquid inlet pipe 130 and a circuit board 140. The plug part 100 has a first plug end 150. The operating part 200 includes an operating mechanism 210, a water vapor valve 220 and a suction valve 230. The liquid inlet 222 of the water vapor valve 220 is connected to the liquid inlet pipe 130, the air inlet 221 of the water vapor valve 220 is connected to the air inlet pipe 120, the suction outlet 232 of the suction valve 230 is connected to the suction tube 110, and the operating part 200 also has a second plug end 240 and a third plug end 250. The head end portion 300 includes a vise 310, a first working pipeline 320, a second working pipeline 330 and a lens 340. The first working pipeline 320 is connected to the air outlet 223 and the liquid outlet 224 of the water and gas valve 220, and the second working pipeline 330 is connected to the suction inlet 231 of the suction valve 230. The vise 310 is connected to the operating mechanism 210 through a driving wire. The operating part 200 also has a fourth plug-in terminal 350. The lens 340 is electrically connected to the circuit board 140. The two ends of the first connecting pipeline 400 are respectively plugged into the first plug-in terminal 150 and the second plug-in terminal 240, and the two ends of the second connecting pipeline 500 are respectively plugged into the third plug-in terminal 250 and the fourth plug-in terminal 350.

[0035] It can be understood that the plug part 100 and the operating part 200 are connected through the first connecting pipe 400, and the two ends of the first connecting pipe 400 are respectively plugged into the first plug-in end 150 of the plug part 100 and the second plug-in end 240 of the operating part 200, and the operating part 200 and the head end 300 are connected through the second connecting pipe 500, and the two ends of the second connecting pipe 500 are respectively plugged into the third plug-in end 250 of the operating part 200 and the fourth plug-in end 350 of the head end 300. The plug-in connection method has a simple structure, is easy to assemble and disinfect, and any part of the plug part 100, the operating part 200 and the head end 300 can be selectively replaced according to the number of uses, which is beneficial to improving the safety of the endoscope. At the same time, in the actual assembly process, the liquid inlet 222 of the water vapor valve 220 is connected to the liquid inlet pipe 130, the air inlet 221 of the water vapor valve 220 is connected to the air inlet pipe 120, the suction outlet 232 of the suction valve 230 is connected to the suction pipe 110, the second working pipeline 330 is connected to the suction inlet 231 of the suction valve 230, and the first working pipeline 320 is connected to the air outlet 223 of the water vapor valve 220 and the liquid outlet 224 of the water vapor valve 220 to complete the components of the working channel of the entire endoscope, which has a simple structure and is convenient for installation and disassembly, thereby further helping to improve the safety of the use of the endoscope. It should be additionally noted that the connecting wire between the circuit board 140 and the lens 340 can also be included in the first connecting pipeline 400 and the second connecting pipeline 500 to ensure that the two can be stably connected.

[0036] refer to Figure 2 As shown, the plug part 100 further includes a plug housing 160, a suction connector 170, a water-gas converging valve 180, and an air inlet connector 190. The plug housing 160 has a first installation cavity, the suction connector 170 is plugged into the plug housing 160 and connected to the suction tube 110, the water-gas converging valve 180 is installed in the first installation cavity, and the water-gas converging valve 180 has a gas channel and a liquid channel, the gas channel is communicated with the gas inlet 221 of the water-gas valve 220, and the liquid channel is communicated with the liquid inlet 222 of the water-gas valve 220; the air inlet connector 190 is plugged into the plug housing 160 and communicated with the gas channel. The gas channel is connected to the air inlet 221 of the water gas valve 220, and the liquid channel is connected to the liquid inlet 222 of the water gas valve 220; it can be understood that the added suction connector 170 can facilitate the connection between the plug part 100 and the external pump, and the air inlet connector 190 can facilitate the connection between the plug part 100 and the external air source. The water-gas confluence valve 180 serves as a control valve, which can specifically control the connection status of the liquid inlet pipe 130, the air inlet pipe 120 and the water gas valve 220. The control of two channels is achieved by using one control valve, which is conducive to simplifying the structure of the endoscope.

[0037] It should be additionally explained that, in the endoscope, the specific form of the driving mechanism for driving the vise 310 to open or close is the prior art, and there is no need to limit the specific structure of the driving mechanism.

[0038] refer to Figure 2 As shown, the plug housing 160 includes a first shell 161 and a second shell 162 that are interlocked. It is understandable that the plug housing 160 includes the first shell 161 and the second shell 162, which facilitates the assembly of the plug housing 160 and facilitates the installation of structures such as the suction connector 170, the water-gas confluence valve 180, the air inlet connector 190, the liquid inlet pipe 130, and the air inlet pipe 120 into the first installation cavity. It should be supplemented here that in the embodiment of the utility model, the first shell 161 and the second shell 162 can be connected by snap-fit ​​connection, or by connecting parts such as screws. In some embodiments, the first shell 161 and the second shell 162 are interlocked and sealed with sealant. After a period of use, the entire plug part 100 can be directly discarded, thereby avoiding the use risks caused by incomplete disinfection.

[0039] refer to Figure 3 As shown, the operating part 200 also includes an operating housing 260 and a sealing cover 270. The operating housing 260 has a second installation cavity, and the second installation cavity has a first plug hole and a second plug hole. The water and gas valve 220 and the suction valve 230 are respectively plugged into the first plug hole and the second plug hole. The sealing cover 270 is buckled on the operating housing 260 and is used to seal the connection position between the water and gas valve 220 and the suction valve 230 and the operating housing 260. It can be understood that in the actual assembly process, the water and gas valve 220 and the suction valve 230 are respectively plugged into the first plug hole and the second plug hole, and then the sealing cover 270 is buckled on the operating housing 260, so that the sealing cover 270 seals the connection position between the water and gas valve 220 and the suction valve 230 and the operating housing 260. On the one hand, the structure of the operating part 200 is simplified, and on the other hand, the phenomenon of external foreign matter entering the operating part 200 from the connection gap between the water and gas valve 220 and the suction valve 230 and the operating housing 260 is avoided. It should be noted that, in some embodiments, the sealing cover 270 and the operating shell 260 are snapped together and sealed with sealant, and the entire operating part 200 can be directly discarded after being used for a period of time, thereby avoiding the risk of use caused by incomplete disinfection.

[0040] Further, refer to Figure 3As shown, the operating housing 260 includes a housing body and a first plug-in sleeve and a second plug-in sleeve plugged into the housing body, and the first plug-in sleeve and the second plug-in sleeve respectively form a second plug-in end 240 and a third plug-in end 250. It can be understood that, when the operating housing 260 is split into a detachably connected housing body, a first plug-in sleeve and a second plug-in sleeve, on the one hand, it is convenient to assemble the operating housing 260, and on the other hand, it is conducive to simplifying the structure of the operating housing 260 and facilitating the assembly of the operating part 200. It should be supplemented that, in some embodiments, the housing body, the first plug-in sleeve and the second plug-in sleeve are connected and sealed with a sealant, and the entire operating housing 260 can be directly discarded after a period of use, thereby avoiding the use risks caused by incomplete disinfection.

[0041] refer to Figure 5 and Figure 6 As shown, the first connecting pipeline 400 includes a first protective outer skin and a first pipeline 410, a second pipeline 420 and a third pipeline 430 arranged in the first protective outer skin; the two ends of the first pipeline 410 are respectively plugged with the air inlet pipe 120 and the air inlet port 221; the two ends of the second pipeline 420 are respectively plugged with the liquid inlet pipe 130 and the air inlet pipe 120; and the two ends of the third pipeline 430 are respectively connected with the suction pipe 110 and the suction outlet 232. It can be understood that in the actual assembly process, the first pipeline 410 is used to connect the air inlet pipe 120 and the air inlet port 221, the second pipeline 420 is used to connect the liquid inlet pipe 130 and the air inlet pipe 120, and the third pipeline 430 is used to connect the suction pipe 110 and the suction outlet 232, so as to realize the connection of the working channels between the plug part 100 and the water and gas valve 220 and the suction valve 230. This method of using pipeline plugging is very simple to operate, thereby facilitating the assembly of the endoscope. In addition, the added first protective outer skin can protect the first pipeline 410, the second pipeline 420 and the third pipeline 430, thereby preventing the endoscope from being discarded due to damage to the first pipeline 410, the second pipeline 420 and the third pipeline 430.

[0042] refer to Figure 6As shown, the second connecting pipeline 500 includes a second protective outer skin and a fourth pipeline 510, a fifth pipeline 520, a water-gas three-way valve 530 and a sixth pipeline 540 arranged in the second protective outer skin; the two ends of the fourth pipeline 510 are respectively plugged with the gas outlet 223 and the first port of the water-gas three-way valve 530; the two ends of the fifth pipeline 520 are respectively plugged with the liquid outlet 224 and the second port of the water-gas three-way valve 530; the third port of the water-gas three-way valve 530 is plugged with the first working pipeline 320; the two ends of the sixth pipeline 540 are respectively connected with the second working pipeline 330 and the suction inlet 231. It can be understood that the water supply channel and the air supply channel of the endoscope can be combined into one at the head end 300 by adding the water-gas three-way valve 530, thereby simplifying the structure of the endoscope and facilitating the assembly of the endoscope. In addition, the two ends of the fourth pipeline 510 are respectively plugged with the gas outlet 223 and the first port of the water-gas three-way valve 530; the two ends of the fifth pipeline 520 are respectively plugged with the liquid outlet 224 and the second port of the water-gas three-way valve 530; the third port of the water-gas three-way valve 530 is plugged with the first working pipeline 320; and the two ends of the sixth pipeline 540 are respectively connected with the second working pipeline 330 and the suction inlet 231. This method of pipe plugging is very simple to operate, thereby facilitating the assembly of the endoscope. In addition, the additional second protective outer skin can protect the fourth pipeline 510, the fifth pipeline 520 and the sixth pipeline 540, and avoid the phenomenon of endoscope abandonment caused by damage to the fourth pipeline 510, the fifth pipeline 520 and the sixth pipeline 540.

[0043] Optionally, the operating part 200 further includes a three-way connecting valve 280, a first interface of the three-way connecting valve 280 is connected to the external environment, a second interface is connected to the sixth pipeline 540, and a third interface is connected to the second working pipeline 330. It can be understood that the additional three-way connecting valve 280 can be connected to an external pump or other structure according to actual conditions to enrich the functions of the endoscope.

[0044] refer to Figure 4As shown, the head end portion 300 also includes a head end seat 360, a snake bone 370 and a protective pipeline 380. The vise 310 and the lens 340 are both arranged in the head end seat 360, and the head end seat 360 has an opening connected with the first working pipeline 320 and the second working pipeline 330; the two ends of the snake bone 370 are respectively matched with the vise 310 and the operating mechanism 210, and the snake bone 370 is sleeved on the first working pipeline 320 and the second working pipeline 330, and the protective pipeline 380 is sleeved on the snake bone 370, one end of the protective pipeline 380 is connected to the head end seat 360, and the other end forms a fourth plug end 350. It can be understood that the vise 310 and the operating mechanism 210 are realized by using the snake bone 370, which can facilitate the operation of the vise 310, thereby facilitating the use of the endoscope. The protective pipe 380 can protect the snake bone 370, and prevent the endoscope from being discarded due to damage to the snake bone 370, the first working pipe 320, and the second working pipe 330. It should be noted that the structure of the snake bone 370 can be selected from the existing endoscope snake bone 370 structure according to actual needs, and the structure of the snake bone 370 is not specifically limited here.

[0045] Preferably, the outer side of the snake bone 370 is covered with a rubber sleeve, and the protective pipeline 380 is sleeved on the outer side of the rubber sleeve. Thus, the snake bone 370 can be better protected, and the rubber sleeve also has the function of sealing the entire pipeline so that the snake bone 370 is in a relatively sealed channel, and assisting in restoring the snake bone 370 during the actual working process.

[0046] Further, refer to Figure 4 As shown, the head end seat 360 includes a seat body 361, a head end cap 362 and a connecting ring 363. The head end cap 362 is sleeved on the seat body 361. One end of the connecting ring 363 is connected to the seat body 361, and the other end is connected to the protective pipeline 380. It can be understood that the seat body 361 is provided with an opening that communicates with the first working pipeline 320 and the second working pipeline 330. The lens 340 is arranged on the seat body 361. The seat body 361 serves as the main structure of the head end seat 360 to ensure the structural strength of the head end 300. The head end cap 362 protects the head end seat 360, and the head end cap 362 is made of soft material to reduce damage to the patient. The connecting ring 363 serves as an intermediate connecting structure to facilitate the connection between the head end seat 360 and the protective pipeline 380.

[0047] The use process of the endoscope of this embodiment is as follows: when the endoscope is working, firstly, the head end portion 300 of the endoscope is inserted into the designated part of the human digestive tract through the natural cavity, and then the range of motion and depth are adjusted through the operating part 200, and the bending direction and bending angle of the snake bone 370 are controlled by controlling the operating mechanism 210, and the lens 340 is aimed at the part to be observed for real-time observation and diagnosis; the openings of the first working pipeline 320 and the second working pipeline 330 should be aimed at the part to be treated for treatment; when the bending angles in various directions are locked during the operation of the endoscope, if it is found that there is tissue fluid or If foreign matter blocks the observation area, the water supply function is used to flush away tissue fluid or foreign matter by pressing the water and air valve 220, and then the lens 340 is flushed clean by the air supply function. Then, the negative pressure valve on the operating part 200 is pressed to absorb the flushing mixed liquid into the negative pressure suction device through the second working channel. If tissue samples need to be extracted, the three-way connecting valve 280 is used to grab the tissue samples and bring them out of the body. If real-time photography, video recording, freezing, etc. are required, the relevant buttons on the operating part 200 are pressed to collect information through the lens 340, and then transmitted to the image processor connected to the scope plug for processing, and finally the picture is displayed.

[0048] The advantages of the endoscope of this embodiment are as follows:

[0049] First: the plug part 100 and the operating part 200 are connected through the first connecting pipe 400, and the operating part 200 and the head end part 300 are connected through the second connecting pipe 500. The connection method has a simple structure, is convenient for assembly and disinfection, and any part of the plug part 100, the operating part 200 and the head end part 300 can be selectively replaced according to the number of uses, which is highly safe to use;

[0050] Second: the water-gas confluence valve 180 is used as a control valve to control the connection state of the liquid inlet pipe 130, the air inlet pipe 120 and the water-gas valve 220. The use of one control valve realizes the control of two channels, which is conducive to simplifying the structure of the endoscope;

[0051] Third: the first pipeline 410, the second pipeline 420 and the third pipeline 430 are used to realize the communication of the working channels between the plug part 100 and the water and gas valve 220 and the suction valve 230, which is very simple to operate and convenient for assembling the endoscope;

[0052] Fourth: the fourth pipeline 510, the fifth pipeline 520, the water-gas three-way valve 530 and the sixth pipeline 540 are used to realize the communication between the water-gas valve 220 and the suction valve 230 and the first working pipeline 320 and the second working pipeline 330, which is very simple to operate and convenient for the assembly of the endoscope;

[0053] Fifth: the operating housing 260 is split into a detachably connected housing body, a first plug sleeve and a second plug sleeve, which facilitates the assembly of the operating housing 260, helps to simplify the structure of the operating housing 260, and facilitates the assembly of the operating part 200;

[0054] Sixth: The water vapor valve 220 and the suction valve 230 are respectively plugged into the first socket and the second socket, and the sealing cover 270 is used to seal the connection position between the water vapor valve 220 and the suction valve 230 and the operating shell 260. On the one hand, it simplifies the structure of the operating part 200, and on the other hand, it prevents external foreign matter from entering the operating part 200 through the connection gap between the water vapor valve 220 and the suction valve 230 and the operating shell 260.

[0055] In the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", 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 utility model. 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 can be combined in any one or more embodiments or examples in a suitable manner.

[0056] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. An endoscope, characterized in that: include: A plug part (100), the plug part (100) comprising a suction tube (110), an air inlet tube (120), a liquid inlet tube (130) and a circuit board (140), the plug part (100) having a first plug end (150); an operating part (200), the operating part (200) comprising an operating mechanism (210), a water vapor valve (220) and a suction valve (230), the liquid inlet (222) of the water vapor valve (220) being in communication with the liquid inlet pipe (130), the air inlet (221) of the water vapor valve (220) being in communication with the air inlet pipe (120), the suction outlet (232) of the suction valve (230) being in communication with the suction pipe (110), and the operating part (200) further comprising a second plug end (240) and a third plug end (250); A head end portion (300), the head end portion (300) comprising a vise (310), a first working pipeline (320), a second working pipeline (330) and a lens (340), the first working pipeline (320) being in communication with the air outlet (223) of the water and gas valve (220) and the liquid outlet (224) of the water and gas valve (220), the second working pipeline (330) being in communication with the suction inlet (231) of the suction valve (230), the vise (310) being connected to the operating mechanism (210) via a driving wire, the operating portion (200) further comprising a fourth plug-in terminal (350), and the lens (340) being electrically connected to the circuit board (140); A first connecting pipeline (400), wherein two ends of the first connecting pipeline (400) are respectively plugged into the first plug-in end (150) and the second plug-in end (240); A second connecting pipeline (500), wherein two ends of the second connecting pipeline (500) are respectively plugged into the third plugging end (250) and the fourth plugging end (350).

2. The endoscope according to claim 1, characterized in that The plug part (100) further comprises: A plug housing (160), wherein the plug housing (160) has a first mounting cavity; A suction connector (170), the suction connector (170) is plugged into the plug housing (160) and connected to the suction tube (110); a water-gas converging valve (180), the water-gas converging valve (180) being installed in the first installation cavity, the water-gas converging valve (180) comprising a gas channel and a liquid channel, the gas channel being in communication with the gas inlet (221) of the water-gas valve (220), and the liquid channel being in communication with the liquid inlet (222) of the water-gas valve (220); An air intake connector (190) is plugged into the plug housing (160) and is in communication with the gas channel.

3. The endoscope according to claim 2, characterized in that The plug housing (160) comprises a first shell (161) and a second shell (162) which are engaged with each other.

4. The endoscope according to claim 1, characterized in that The operating unit (200) further includes: An operating housing (260), wherein the operating housing (260) has a second installation cavity, wherein the second installation cavity has a first plug hole and a second plug hole, and the water and gas valve (220) and the suction valve (230) are respectively plugged into the first plug hole and the second plug hole; A sealing cover (270) is buckled onto the operating housing (260) and is used to seal the connection position between the water and gas valve (220) and the suction valve (230) and the operating housing (260).

5. The endoscope according to claim 4, characterized in that The operating shell (260) comprises a shell body and a first plug-in sleeve and a second plug-in sleeve plugged into the shell body, wherein the first plug-in sleeve and the second plug-in sleeve respectively form the second plug-in end (240) and the third plug-in end (250).

6. The endoscope according to claim 1, characterized in that The first connecting pipeline (400) comprises a first protective outer skin and a first pipeline (410), a second pipeline (420) and a third pipeline (430) arranged in the first protective outer skin; Two ends of the first pipeline (410) are respectively plugged into the air inlet pipe (120) and the air inlet (221); Two ends of the second pipeline (420) are respectively plugged into the liquid inlet pipe (130) and the air inlet pipe (120); Both ends of the third pipeline (430) are respectively connected to the suction pipe (110) and the suction outlet (232).

7. The endoscope according to claim 1, characterized in that: The second connecting pipeline (500) comprises a second protective outer skin and a fourth pipeline (510), a fifth pipeline (520), a water-gas three-way valve (530) and a sixth pipeline (540) arranged in the second protective outer skin; The two ends of the fourth pipeline (510) are respectively plugged into the gas outlet (223) and the first port of the water-gas three-way valve (530); The two ends of the fifth pipeline (520) are respectively plugged into the liquid outlet (224) and the second port of the water-gas three-way valve (530); The third port of the water-gas three-way valve (530) is plugged into the first working pipeline (320); Both ends of the sixth pipeline (540) are respectively connected to the second working pipeline (330) and the suction inlet (231).

8. The endoscope according to claim 7, characterized in that The operating part (200) further comprises a three-way connecting valve (280), wherein a first interface of the three-way connecting valve (280) is in communication with the external environment, a second interface is connected to the sixth pipeline (540), and a third interface is connected to the second working pipeline (330).

9. The endoscope according to claim 1, characterized in that: The head end portion (300) further comprises: A head end seat (360), the vise (310) and the lens (340) are both arranged in the head end seat (360), and the head end seat (360) has an opening communicating with the first working pipeline (320) and the second working pipeline (330); A snake bone (370), two ends of which are respectively matched with the bench vise (310) and the operating mechanism (210), and the snake bone (370) is sleeved on the first working pipeline (320) and the second working pipeline (330); A protective pipe (380), wherein the protective pipe (380) is sleeved on the snake bone (370), one end of the protective pipe (380) is connected to the head end seat (360), and the other end forms the fourth plug end (350).

10. The endoscope according to claim 9, characterized in that The head end seat (360) comprises: seat body(361); A head end cap (362), wherein the head end cap (362) is sleeved on the seat body (361); A connecting ring (363), one end of which is connected to the seat body (361), and the other end of which is connected to the protective pipeline (380).

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