Hysteroscope circulating water path system

Abstract

The present application belongs to the technical field of medical apparatus and instruments, and particularly relates to a hysteroscope circulating waterway system. The present application provides a hysteroscope circulating waterway system in view of the problem of complicated structure of the waterway system in the prior art, which comprises an outer shell and a viewing tube connected to the outer shell. The outer shell is provided with a water inlet joint and a water outlet joint. The end of the viewing tube away from the outer shell is provided with a water inlet and a water return port. The end of the viewing tube is provided with a waterway joint having at least two cavities. The viewing tube comprises an inner tube and an outer tube which are sleeved with each other. The inner tube is in communication with the water inlet, and the outer tube is in communication with the water return port. The inner tube and the outer tube are respectively in communication with one of the cavities in the waterway joint. The waterway joint is in communication with the water inlet joint and the water outlet joint through a hose. The present application adopts the hose connection mode to erect the waterway, so that a large number of sealing rings do not need to be arranged in the hysteroscope to ensure the sealing of the internal cavity, and the operation is facilitated.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of medical devices, and particularly relates to a hysteroscope circulating waterway system. BACKGROUND

[0002] The hysteroscope is a new, minimally invasive gynecological diagnosis and treatment technology, which is an endoscope used for intrauterine examination and treatment. The hysteroscope can easily observe and diagnose the entire uterine cavity, and the examination process is fast, painless and does not damage the uterus. During the hysteroscope operation, water needs to be injected into the uterus through the hysteroscope to make the uterine cavity expand, which is convenient for observation during the operation process. Therefore, the hysteroscope needs to be provided with a waterway system including a water inlet pipeline and a water return pipeline.

[0003] Most of the waterway systems in the prior art need to be provided with one or more sealing rings to separate the inside of the hysteroscope into several mutually isolated spaces to ensure the normal operation of the waterway system, and the structure is relatively complex.

[0004] For example, a hysteroscope is disclosed in a Chinese invention patent [application number: 201810824855.4], which comprises an outer tube, a tube route positioning cavity is formed on the left side of the outer tube, a positioning block is fixedly connected in the tube route positioning cavity, an instrument tube for an instrument channel is arranged through the inside of the positioning block, an objective lens one, a degree combination prism, an objective lens two, a spacer ring one, an objective lens three, a spacer ring two, an objective lens four, a spacer ring three, a turning mirror, a spacer ring four, a spacer ring five, a rod lens elastic spacer, a left corner rod lens, a front mirror tube rear prism seat and a degree turning mirror prism are fixedly connected in the inside of the front mirror tube from left to right, a main body is fixedly connected to the surface of the outer tube, a universal light guide head is fixedly connected to the top of the main body, a main body front connector is fixedly connected to the left side of the main body, a main body rear connector is fixedly connected to the right side of the main body, a main body rear connector is fixedly connected to the top of the main body rear connector through a compression mother, a rear mirror tube is fixedly connected to the inside of the main body rear connector, a compression cap is fixedly connected to the top of the rear mirror tube, a right corner rod lens is fixedly connected to the inside of the rear mirror tube, a color ring is sleeved on the surface of the main body rear connector, an eyepiece cover connecting sleeve is fixedly connected to the top of the main body rear connector, a centering piece is fixedly connected to the surface of the main body rear connector through a compression spring, a base is fixedly connected to the inside of the eyepiece cover connecting sleeve through a fixed screw, an eyepiece barrel is fixedly connected to the top of the inner wall of the base through a diaphragm seat, an eyepiece adjusting seat is fixedly connected to the bottom of the inner wall of the eyepiece barrel, an eyepiece is fixedly connected to the top of the inner wall of the eyepiece barrel, an eyepiece protection piece seat is sleeved on the top of the surface of the eyepiece cover connecting sleeve, an eyepiece protection piece is fixedly connected to the inside of the eyepiece protection piece seat, and an eyepiece cover is fixedly connected to the surface of the eyepiece cover connecting sleeve.

[0005] The invention patent has the advantages of being able to distinguish blood vessel distribution and lesions under the mucosa, and being easy to operate, but it still does not solve the above problems. SUMMARY

[0006] The present application aims at the above-mentioned problems, and provides a hysteroscope circulating waterway system which is simple in structure and convenient for waterway installation.

[0007] To achieve the above-mentioned purposes, the present application adopts the following technical solutions:

[0008] A hysteroscope circulating waterway system comprises a shell body and a hysteroscope pipe connected to the shell body, the shell body is provided with a water inlet joint and a water outlet joint, the hysteroscope pipe is provided with a water inlet port and a water return port at an end away from the shell body, the hysteroscope pipe is provided with a waterway joint having at least two cavities at one end, the hysteroscope pipe comprises an inner pipe and an outer pipe which are sleeved with each other, the inner pipe is connected to the water inlet port, and the outer pipe is connected to the water return port, the inner pipe and the outer pipe are connected to one cavity in the waterway joint respectively, and the waterway joint is connected to the water inlet joint and the water outlet joint through a hose respectively.

[0009] In the above-mentioned hysteroscope circulating waterway system, the waterway joint comprises a joint shell and a waterway chamber in the joint shell, the waterway chamber comprises a first chamber and a second chamber, the outer pipe is connected to the first chamber, and the inner pipe is connected to the second chamber, at least two intercommunication pipes are connected to the joint shell, and the intercommunication pipes are connected to the first chamber or the second chamber.

[0010] In the above-mentioned hysteroscope circulating waterway system, the first chamber and the second chamber are arranged in front of and behind the axial line direction of the joint shell, and the first chamber is closer to the outer pipe than the second chamber, and the inner diameter of the first chamber is larger than that of the second chamber.

[0011] In the above-mentioned hysteroscope circulating waterway system, the axial line of the inner pipe and the axial line of the outer pipe coincide with each other, and when the inner pipe is connected to the second chamber, the outer wall of the inner pipe is sealingly fitted to the inner wall of the second chamber.

[0012] In the above-mentioned hysteroscope circulating waterway system, the waterway joint is provided with a rotary connector at an end away from the hysteroscope pipe, the rotary connector is provided with a key groove which is recessed to the inside of the rotary connector, the surface of the key groove is a plane, a guide rib is fixedly connected to the surface of the key groove, and the extension direction of the guide rib is parallel to the axial line direction of the waterway joint.

[0013] In the above hysteroscope circulating waterway system, the water inlet joint and the waterway joint are connected by a first water inlet hose and a second water inlet hose arranged independently, the first water inlet hose and the second water inlet hose are connected, one end of the first water inlet hose is connected to the water inlet joint, one end of the second water inlet hose is connected to the waterway joint and connected to the inner tube, the water outlet joint and the waterway joint are connected by a first water return hose and a second water return hose arranged independently, the first water return hose and the second water return hose are connected, one end of the first water return hose is connected to the water outlet joint, one end of the second water return hose is connected to the endoscope tube and connected to the outer tube.

[0014] Or the water inlet joint and the waterway joint and the water outlet joint and the waterway joint are connected by a hose, and the middle part of the hose is directly or indirectly connected to the outer shell by at least one fixing structure.

[0015] In the above hysteroscope circulating waterway system, the installation disc has a water running cavity inside, one end of the first water inlet hose, the second water inlet hose, the first water return hose and the second water return hose are connected to the installation disc and connected to the water running cavity; the water running cavity includes a water inlet cavity and a water outlet cavity, the first water inlet hose and the second water inlet hose are connected by the water inlet cavity, the first water return hose and the second water return hose are connected by the water outlet cavity.

[0016] In the above hysteroscope circulating waterway system, the installation disc is fixedly connected to the outer shell and located inside the outer shell, the endoscope tube penetrates through the installation disc and the axis of the endoscope tube penetrates through the center of the installation disc.

[0017] In the above hysteroscope circulating waterway system, a rotating knob is further connected to one end of the endoscope tube for driving the endoscope tube to rotate, the rotating knob has a limiting ring recessed towards the inside of the rotating knob on the side surface close to the endoscope tube, the limiting ring has a limiting block protruding from the surface, rotating the rotating knob can make the limiting block press on the outer shell.

[0018] In the above hysteroscope circulating waterway system, the water inlet joint is provided with a water inlet valve for adjusting the opening degree of the water inlet joint, the water outlet joint is provided with a water outlet valve for adjusting the opening degree of the water outlet joint, and the opening degree of the water inlet joint is greater than that of the water outlet joint.

[0019] Compared with the prior art, the advantages of the present application are that:

[0020] 1. The present application adopts the hose connection mode to realize the erection of the waterway, so that a large number of sealing rings do not need to be arranged inside the hysteroscope to ensure the sealing of the internal cavity, which is convenient to operate.

[0021] 2、The hose of the present application adopts multi-section independent structure or is fixed by fixed structure at middle position, reduces the free degree of hose swing in rotating process, thereby preventing the problem of water path blockage caused by hose bending.

[0022] 3、The present application realizes the setting of double water path by the double water path joint with two chambers and two external connecting pipelines, one pipeline realizes water inlet and the other realizes water outlet, thereby realizing the setting of double water path simply and conveniently and simplifying the internal structure of hysteroscope.

[0023] 4、The second water inlet hose and the second water return hose of the present application are located at two sides of the endoscope tube and have length longer than the straight line distance from the mounting disc to the position where the hose is communicated with the endoscope tube, so that the margin can be left in rotating process.

[0024] 5、The present application has simple structure, convenient manufacturing and low production cost, and is suitable for large-scale popularization and use. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is the structure schematic view of the present application applied to hysteroscope;

[0026] Figure 2 is the structure schematic view of the present application;

[0027] Figure 3 is the structure schematic view of another view of the present application;

[0028] Figure 4 is the sectional view of part structure of the present application;

[0029] Figure 5 is the water path structure schematic view of hysteroscope in prior art;

[0030] Figure 6 is the structure schematic view of water path joint;

[0031] In the figure: outer shell 1, endoscope tube 2, water inlet joint 3, water outlet joint 4, water inlet 5, water return 6, first water inlet hose 7, second water inlet hose 8, first water return hose 9, second water return hose 10, water running cavity 11, mounting disc 12, water inlet cavity 13, water outlet cavity 14, rotating knob 15, limiting ring 16, limiting block 17, water inlet valve 18, water outlet valve 19, water path joint 20, inner tube 21, outer tube 22, joint shell 100, interactive pipeline 101, limiting clamp 103, fixed connecting sheet 104, rotating connecting head 106, key groove 107, guide rib 108, first positioning step 203, second positioning step 204, first abutting surface 205, second abutting surface 206. DETAILED DESCRIPTION

[0032] The application will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] In combination Figures 1-3 As shown in the drawings, a hysteroscope circulating waterway system comprises a shell body 1 and a hysteroscope tube 2 connected to the shell body 1, the shell body 1 is provided with a water inlet joint 3 and a water outlet joint 4, the hysteroscope tube 2 is provided with a water inlet 5 and a water return 6 at the end away from the shell body 1, the hysteroscope tube 2 is provided with a waterway joint 20 having at least two cavities, the hysteroscope tube 2 comprises an inner tube 21 and an outer tube 22 which are sleeved with each other, the inner tube 21 is connected to the water inlet 5, the outer tube 22 is connected to the water return 6, the inner tube 21 and the outer tube 22 are connected to one cavity in the waterway joint 20 respectively, and the waterway joint 20 is connected to the water inlet joint 3 and the water outlet joint 4 through a hose respectively.

[0034] As Figure 5 As shown in the drawings, a hysteroscope circulating waterway system comprises a shell body 1 and a hysteroscope tube 2 connected to the shell body 1, the shell body 1 is provided with a water inlet joint 3 and a water outlet joint 4, the hysteroscope tube 2 is provided with a water inlet 5 and a water return 6 at the end away from the shell body 1, the hysteroscope tube 2 is provided with a waterway joint 20 having at least two cavities, the hysteroscope tube 2 comprises an inner tube 21 and an outer tube 22 which are sleeved with each other, the inner tube 21 is connected to the water inlet 5, the outer tube 22 is connected to the water return 6, the inner tube 21 and the outer tube 22 are connected to one cavity in the waterway joint 20 respectively, and the waterway joint 20 is connected to the water inlet joint 3 and the water outlet joint 4 through a hose respectively.

[0035] In combination Figure 1 As Figure 4 As shown in the drawings, the waterway joint 20 comprises a joint shell 100 and a waterway chamber 200 in the joint shell 100, the waterway chamber 200 comprises a first chamber 201 and a second chamber 202, the outer tube 22 is connected to the first chamber 201, the inner tube 21 is connected to the second chamber 202, and the joint shell 100 is connected to at least two interaction pipes 101, the interaction pipes 101 are connected to the first chamber 201 or the second chamber 202.

[0036] In use, the external water source enters the second chamber 202 through one of the interaction pipes 101, the water in the second chamber 202 is transported to the patient's uterine cavity through the pipe to realize water inlet and make the patient's uterine cavity expand, the water in the uterine cavity is returned to the first chamber 201 through the pipe and is discharged through the other interaction pipe 101 to form waterway circulation. Therefore, the double waterway joint with two chambers is connected to two external pipe lines, i.e. hoses, one pipe line realizes water inlet and the other pipe line realizes water outlet, so that the double waterway is simply and conveniently realized by using the double waterway joint, and the internal structure of the hysteroscope is simplified.

[0037] As Figure 4 As shown in the drawings, the first chamber 201 and the second chamber 202 are arranged in front of and behind the axial line direction of the joint shell 100 or are arranged side by side.

[0038] Preferably, the first chamber 201 and the second chamber 202 are arranged in front and back along the axial direction of the joint housing 100, and the inner diameter of the first chamber 201 is not equal to the inner diameter of the second chamber 202. In this way, when connecting the external pipeline, the external pipeline can adopt the arrangement mode of the sleeve as shown in the figure to save space. The inner diameter of the first chamber 201 is not equal to the inner diameter of the second chamber 202, that is, the inner diameter of the first chamber 201 is greater than the inner diameter of the second chamber 202, so that when the inner tube is connected to the second chamber 202, the inner tube and the second chamber 202 can still have a gap, thereby facilitating the communication between the first chamber 201 and the outer tube. Figure 4

[0039] As shown in the figure, the joint housing 100 is fixedly connected with a limiting clip 103 on the side, and the limiting clip 103 extends along the radial direction of the joint housing 100. The limiting clip 103 can be used to clamp the external pipeline, in combination with Figure 6 As shown in the figure, the second water inlet hose 8 and the second water return hose 10 are clamped by the limiting clip 103, so that the hysteroscope inner tube system is arranged more regularly, and since the limiting clip 103 is provided with two and symmetrically connected on both sides of the joint housing 100, the size and length of the two limiting clips 103 are equal, so that the initial position of the second water inlet hose 8 and the second water return hose 10 is fixed during rotation, and the position of the second water inlet hose 8 and the second water return hose 10, that is, the motion trajectory is relatively controllable during rotation. Figure 2

[0040] As shown in the figure, at least one fixed connecting piece 104 is provided between each limiting clip 103 and the joint housing 100, one side of the fixed connecting piece 104 is fixedly connected with the limiting clip 103, and the other side is fixedly connected with the joint housing 100. The fixed connecting piece 104 can be used to reinforce the reliability of the connection between the limiting clip 103 and the joint housing 100. Figure 6

[0041] Preferably, the cross section of the fixed connecting piece 104 is triangular. The fixed connecting piece 104 can be prevented from deforming during use.

[0042] As shown in the figure, one end of the joint housing 100 has a rotating connector 106, the side of the rotating connector 106 has a key groove 107 recessed into the interior of the rotating connector 106, and the surface of the key groove 107 is a plane. The key groove 107 is fixedly connected with a guide rib 108, and the extension direction of the guide rib 108 is parallel to the axial direction of the joint housing 100. In this way, the joint housing 100 can be connected with the rotating knob at the tail end, as shown in the figure. Figure 6 Figure 1 ​​​​As shown, the rotating knob at the tail end is used to drive the double waterway joint and the hysteroscope front-end tube body. The guide rib 108 can also be used to prevent mistakes and ensure the connection direction of the rear knob.

[0043] In combination Figure 4 and Figure 6 As shown, the joint housing 100 is provided with a first positioning step 203 and a second positioning step 204, which are respectively located in the first chamber 201 and the second chamber 202. The first positioning step 203 has a first abutting surface 205 on one side, and the second positioning step 204 has a second abutting surface 206 on one side. In this way, during the installation of the external pipeline, the external pipeline connected to the first chamber 201 can be installed in place by the first positioning step 203, and the external pipeline connected to the second chamber 202 can be installed in place by the second positioning step 204.

[0044] As shown Figure 1 As shown, the water inlet joint 3 and the waterway joint 20 are connected by a first water inlet hose 7 and a second water inlet hose 8, which are connected in series. One end of the first water inlet hose 7 is connected to the water inlet joint 3, and one end of the second water inlet hose 8 is connected to the waterway joint 20 and is connected to the inner tube 21. The water outlet joint 4 and the waterway joint 20 are connected by a first water return hose 9 and a second water return hose 10, which are connected in series. One end of the first water return hose 9 is connected to the water outlet joint 4, and one end of the second water return hose 10 is connected to the inner tube 2 and is connected to the outer tube 22. Alternatively, the water inlet joint 3 and the waterway joint 20, and the water outlet joint 4 and the waterway joint 20 are connected by a single hose, and the middle part of the hose is directly or indirectly connected to the outer housing 1 by at least one fixing structure. The fixing structure can be selected from some common structures in the prior art, such as a curved pipe with an arc. The outer side of the curved pipe is directly or indirectly connected to the outer housing 1, and the hose passes through the inside of the curved pipe to limit the position of the hose at this point.

[0045] In use, the water from the external water source is connected through the water inlet joint 3, then flows into the inner tube 2 through the first water inlet hose 7 and the second water inlet hose 8, and enters the patient's uterine cavity through the water inlet 5 at the end of the inner tube 2, so that the uterine cavity is expanded. The water in the uterine cavity is returned through the water return port 6, and then transported to the water outlet joint 4 through the inner tube 2, the second water return hose 10 and the first water return hose 9 to realize water outlet. The hose of the present application adopts a multi-section independent structure or is fixed at the middle position by a fixing structure, which reduces the degree of freedom of the hose swinging during rotation, thereby preventing the problem of waterway blockage caused by hose bending.

[0046] Combining Figure 1 and Figure 3 The installation disc 12 has a sealing cover on one side to ensure the sealing of the water running cavity 11. One end of the first water inlet hose 7, the second water inlet hose 8, the first water return hose 9 and the second water return hose 10 are connected to the installation disc 12 and communicate with the water running cavity 11.

[0047] Specifically, the water running cavity 11 includes a water inlet cavity 13 and a water outlet cavity 14 which are isolated from each other. The first water inlet hose 7 and the second water inlet hose 8 communicate through the water inlet cavity 13, and the first water return hose 9 and the second water return hose 10 communicate through the water outlet cavity 14.

[0048] The installation disc 12 folds the first water inlet hose 7, the second water inlet hose 8, the first water return hose 9 and the second water return hose 10 into a smaller area, and realizes the communication between the water inlet hoses 7 and 8 and the water return hoses 9 and 10 through the two internal cavities 13 and 14 which are isolated from each other, further simplifying the water route structure and facilitating the installation in the limited space inside the hysteroscope.

[0049] As shown in Figure 1 , the installation disc 12 is fixedly connected to the outer shell 1 and located inside the outer shell 1. The installation disc 12 is fixedly arranged inside the outer shell 1 to prevent the installation disc 12 from moving or rotating caused by the soft tubes during the rotation of the endoscope tube 2, further reducing the degree of freedom of the soft tube swing.

[0050] As shown in Figure 3 , it further includes a rotating knob 15 connected to one end of the endoscope tube 2 for driving the endoscope tube 2 to rotate. The installation disc 12 is connected to the side of the outer shell 1 away from the rotating knob 15, and the endoscope tube 2 penetrates through the installation disc 12 and the axis of the endoscope tube 2 penetrates through the center of the installation disc 12.

[0051] Since the second water inlet hose 8 and the second water return hose 10 are connected to the endoscope tube 2, when the endoscope tube 2 penetrates through the installation disc 12 and the axis of the endoscope tube 2 penetrates through the center of the installation disc 12, the second water inlet hose 8 and the second water return hose 10 are in a nearly horizontal state. Since the water inlet joint 3 and the water outlet joint 4 are mostly arranged at the bottom of the outer shell 1, as shown in Figure 1 , the first water inlet hose 7 and the first water return hose 9 are in a nearly vertical state, thereby reducing the possibility of mutual interference between the soft tubes and further avoiding the problem of pipe bending.

[0052] As shown in Figure 1As shown, the rotating knob 15 has a limiting ring 16 recessed into the endoscope tube 2 on its side surface. A limiting block 17 protrudes from the surface of the limiting ring 16. Rotating the rotating knob 15 allows the limiting block 17 to press against the outer shell 1. Preferably, the curvature of the limiting block 17 is less than 20 degrees. This ensures that the rotating knob 15 can rotate a large angle, approximately 340 degrees, thereby ensuring the adjustment of the field of view during hysteroscopic surgery.

[0053] Preferably, the endoscope 2 is a curved tube, meaning that one end of the endoscope 2 has a certain curvature that bends to one side. This allows the visible area of ​​the endoscope to shift significantly during rotation, enabling the endoscope to obtain a larger field of view simply by rotating the knob 15, without requiring overall adjustment of the hysteroscope's position, thus facilitating surgical procedures.

[0054] like Figure 4 As shown, the endoscope 2 includes an inner tube 21 and an outer tube 22 that are nested together. One end of the inner tube 21 has a water inlet 5, and the other end is connected to a second water inlet hose 8. One end of the outer tube 22 has a water return outlet 6, and the other end is connected to a second water return hose 10. Preferably, the centerlines of the inner tube 21 and the outer tube 22 coincide.

[0055] like Figure 1 As shown, the inlet connector 3 is equipped with an inlet valve 18 for adjusting the opening of the inlet connector 3, and the outlet connector 4 is equipped with an outlet valve 19 for adjusting the opening of the outlet connector 4. The opening of the inlet connector 3 is greater than the opening of the outlet connector 4. By adjusting the openings of the inlet connector 3 and the outlet connector 4 through the inlet valve 18 and the outlet valve 19, it is ensured that the opening of the inlet connector 3 is greater than the opening of the outlet connector 4, thereby ensuring a certain water pressure in the uterine cavity and ensuring a certain degree of expansion of the uterine cavity.

[0056] like Figure 1 As shown, the second inlet hose 8 and the second return hose 10 are located on both sides of the endoscope tube, and the length of the second inlet hose 8 is longer than the straight-line distance from the connection point of the second inlet hose 8, and the length of the second return hose 10 is longer than the straight-line distance from the connection point of the second return hose 10. That is, the second inlet hose 8 and the second return hose 10 of the present invention are located on both sides of the endoscope tube 2, and their lengths are longer than the straight-line distance from the mounting plate 12 to the connection point between the hose and the endoscope tube 2, so that a margin can be left during rotation.

[0057] The working principle of the application is as follows: in use, the water inlet joint 3 is opened by rotating the water inlet valve 18, the external water source passes through the water inlet joint 3, then passes through the first water inlet hose 7 and the second water inlet hose 8 in sequence, and flows into the second chamber 202 of the waterway joint 20, then passes through the inner tube 21 and the water inlet 5 in sequence, and enters the uterine cavity of the patient, so that the uterine cavity is filled with water and swells. The water in the uterine cavity returns through the water return port 6, and enters the first chamber 201 of the waterway joint 20 through the outer tube 22, then passes through the second water return hose 10 and the first water return hose 9 in sequence, and is transported to the water outlet joint 4, the water outlet joint 4 is opened by rotating the water outlet valve 19, and then water is discharged. Therefore, the application adopts the mode of connecting the hoses to realize the erection of the waterway, so that a large number of sealing rings do not need to be arranged in the hysteroscope to ensure the sealing of the internal cavity, and the operation is convenient. The double waterway system adopted by the application can ensure that the water inside and outside the uterine cavity can form a circulation, so that the water in the uterine cavity is relatively clear, and the vision is clear.

[0058] The specific embodiments described herein are merely illustrative of the spirit of the application. Those skilled in the art of the application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, without departing from the spirit of the application or exceeding the scope defined by the appended claims.

[0059] Although the terms such as the outer shell 1, the endoscope tube 2, the water inlet joint 3, the water outlet joint 4, the water inlet 5, the water return port 6, the first water inlet hose 7, the second water inlet hose 8, the first water return hose 9, the second water return hose 10, the water flowing cavity 11, the mounting disc 12, the water inlet cavity 13, the water outlet cavity 14, the rotating knob 15, the limiting ring 16, the limiting block 17, the water inlet valve 18, the water outlet valve 19, the waterway joint 20, the inner tube 21, the outer tube 22, the joint shell 100, the interactive pipeline 101, the limiting clamp 103, the fixed connecting piece 104, the rotating connecting head 106, the key groove 107, the guide rib 108, the first chamber 201, the second chamber 202, the first positioning step 203, the second positioning step 204, the first abutting surface 205, the second abutting surface 206, etc. are used herein, but the possibility of using other terms is not excluded. The use of these terms is only for the convenience of describing and explaining the essence of the application; any kind of additional limitation is contrary to the spirit of the application.

Claims

1. A hysteroscope circulating waterway system, comprising an outer shell (1) and a scope tube (2) connected to the outer shell (1), a water inlet joint (3) and a water outlet joint (4) being arranged on the outer shell (1), and a water inlet (5) and a water return (6) being arranged at the end of the scope tube (2) away from the outer shell (1), characterized in that: One end of the endoscope (2) is provided with a waterway connector (20) having at least two cavities, the endoscope (2) comprises an inner tube (21) and an outer tube (22) which are sleeved with each other, the inner tube (21) is connected with the water inlet (5), the outer tube (22) is connected with the water outlet (6), the inner tube (21) and the outer tube (22) are connected with one cavity of the waterway connector (20) respectively, the waterway connector (20) is connected with the water inlet connector (3) and the water outlet connector (4) through the hose respectively; The water inlet connector (3) and the waterway connector (20) are provided with a first water inlet hose (7) and a second water inlet hose (8) which are arranged independently, the first water inlet hose (7) and the second water inlet hose (8) are connected, one end of the first water inlet hose (7) is connected with the water inlet connector (3), one end of the second water inlet hose (8) is connected with the waterway connector (20) and connected with the inner tube (21), the water outlet connector (4) and the waterway connector (20) are provided with a first water outlet hose (9) and a second water outlet hose (10) which are arranged independently, the first water outlet hose (9) and the second water outlet hose (10) are connected, one end of the first water outlet hose (9) is connected with the water outlet connector (4), one end of the second water outlet hose (10) is connected with the endoscope (2) and connected with the outer tube (22). The installation disc (12) is further provided with a water running cavity (11), one end of the first water inlet hose (7), the second water inlet hose (8), the first water outlet hose (9) and the second water outlet hose (10) is connected with the installation disc (12) and connected with the water running cavity (11), the water running cavity (11) comprises a water inlet cavity (13) and a water outlet cavity (14) which are isolated from each other, the first water inlet hose (7) and the second water inlet hose (8) are connected through the water inlet cavity (13), the first water outlet hose (9) and the second water outlet hose (10) are connected through the water outlet cavity (14).

2. The hysteroscopic circulating water path system according to claim 1, wherein: The waterway connector (20) comprises a connector shell (100) and a waterway chamber (200) in the connector shell (100), the waterway chamber (200) comprises a first chamber (201) and a second chamber (202), the outer tube (22) is connected with the first chamber (201), the inner tube (21) is connected with the second chamber (202), the connector shell (100) is connected with at least two interaction pipes (101), the interaction pipes (101) are connected with the first chamber (201) or the second chamber (202).

3. The hysteroscopic circulating water path system according to claim 2, wherein: The first chamber (201) and the second chamber (202) are arranged in front and back along the axial direction of the connector shell (100), the first chamber (201) is closer to the outer tube (22) than the second chamber (202), the inner diameter of the first chamber (201) is larger than the inner diameter of the second chamber (202).

4. The hysteroscopic circulating water path system according to claim 3, wherein: The axis of the inner tube (21) and the axis of the outer tube (22) coincide with each other, and when the inner tube (21) communicates with the second chamber (202), the outer wall of the inner tube (21) is in sealing contact with the inner wall of the second chamber (202).

5. The hysteroscopic circulating water path system according to claim 1, wherein: The waterway connector (20) is provided with a rotary connector (106) at one end away from the endoscope tube (2), the rotary connector (106) has a key groove (107) recessed inwardly on the side surface of the rotary connector (106), the surface of the key groove (107) is a plane, the key groove (107) is fixedly connected with a guide rib (108) on the surface, the extension direction of the guide rib (108) is parallel to the axis direction of the waterway connector (20).

6. The hysteroscopic circulating water path system according to claim 1, wherein: The mounting disc (12) is fixedly connected to the outer shell (1) and located inside the outer shell (1), the endoscope tube (2) penetrates through the mounting disc (12) and the axis of the endoscope tube (2) penetrates through the center of the mounting disc (12).

7. The hysteroscopic circulating water path system according to claim 6, wherein: Further comprising a rotating knob (15) connected to one end of the endoscope tube (2) for driving the endoscope tube (2) to rotate, the rotating knob (15) has a limiting ring (16) recessed inwardly on the surface of the side close to the endoscope tube (2), the limiting ring (16) has a limiting block (17) protruding from the surface, rotating the rotating knob (15) can press the limiting block (17) on the outer shell (1).

8. The hysteroscopic circulating water path system according to claim 1, wherein: The water inlet connector (3) is provided with a water inlet valve (18) for adjusting the opening of the water inlet connector (3), the water outlet connector (4) is provided with a water outlet valve (19) for adjusting the opening of the water outlet connector (4), and the opening of the water inlet connector (3) is larger than that of the water outlet connector (4).

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