Hysteroscope

Abstract

The invention discloses a hysteroscope, and relates to the related technical field of hysteroscopes, the hysteroscope comprises a shell, a containing cavity is arranged in the shell, a valve core is installed on the inner wall of the containing cavity, the valve core is provided with a connection cavity along the axial direction, the valve core is connected with a working channel, a flushing channel and a suction channel, the working channel comprises a thin-wall steel pipe inserted with the valve core, and the thin-wall steel pipe is connected with the valve core. A transmission cavity is formed in the thin-wall steel pipe, the thin-wall steel pipe is provided with a working pipe in the transmission cavity, the inserting part extends into the connecting cavity, the peripheral side of the valve element is rotationally connected with a valve seat, an annular cavity communicated with the transmission cavity is formed in the valve seat, and the valve seat is communicated with the flushing channel and the suction channel; the valve core is rotationally connected with the valve seat, so that the valve seat and the connected water-gas pipe and liquid outlet pipe cannot be driven when the valve core drives the thin-wall steel pipe to rotate, the problem of pipeline winding is avoided, and the stability and reliability of equipment operation are guaranteed; a sealing cavity is formed in the valve seat through a sealing ring, effective isolation of the liquid outlet pipe and the liquid inlet pipe is achieved, and liquid leakage is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field related to hysteroscopes, and in particular to a hysteroscope. Background Art

[0002] A hysteroscope is a light-emitting hysteroscope primarily used for intrauterine examination and treatment. It uses the front of the scope to enter the uterine cavity, making it the preferred method for diagnosing gynecological bleeding disorders and intrauterine lesions with its intuitive and accurate nature. However, in existing technologies, when examining a patient's uterus, it is usually necessary to first insert the hysteroscope from the patient's body into the uterus to observe the patient. Once a lesion is found, the hysteroscope is removed and the patient is treated, or the hysteroscope is retained in the patient's body while a treatment device is inserted into the patient's body to treat the patient.

[0003] However, the existing hysteroscope has the following defects in its structural design. The use of the hysteroscope requires the cooperation of multiple channels, such as a working channel for inserting a working instrument, a water injection channel for injecting liquid, and a suction channel for extracting waste liquid. However, when the multi-channel structure is used for adjusting the angle of the instrument or rotating the instrument, the water and gas pipes fixed at the channel interface are very likely to become entangled due to relative movement, which not only affects the normal use of the equipment, but may also cause risks such as pipe damage and liquid leakage. Summary of the Invention

[0004] Purpose of the invention: The purpose of the present invention is to provide a hysteroscope to solve the problem that the existing hysteroscope is inconvenient to rotate during operation.

[0005] Technical solution:

[0006] A hysteroscope comprises an outer shell, wherein an accommodating cavity is provided in the outer shell, a valve core is installed on the inner wall of the accommodating cavity, the valve core is axially provided with a connecting cavity, the valve core is connected to a working channel, a flushing channel and a suction channel, the working channel comprises a thin-walled steel pipe plugged into the valve core, a transmission cavity is provided in the thin-walled steel pipe, the thin-walled steel pipe is provided with a working pipe in the transmission cavity, the plug-in portion extends into the connecting cavity, the circumferential side of the valve core is rotatably connected to a valve seat, the valve seat is provided with an annular cavity connected to the transmission cavity, the valve seat is connected to the flushing channel and the suction channel.

[0007] Preferably, the length of the working tube is longer than that of the thin-walled steel tube, and the valve core is provided with a sealing structure on the inner wall of the connecting cavity, and the sealing structure abuts against the outer wall of the working tube.

[0008] Preferably, the valve core is provided with a first water outlet and a second water outlet on both axial sides of the sealing ring respectively, the flushing channel includes a water inlet pipe, the water inlet pipe is connected to the second water outlet, and the suction channel includes a water outlet pipe, the water outlet pipe is connected to the first water outlet.

[0009] Preferably, the annular cavity is divided into a first annular cavity and a second annular cavity at the first water inlet and the second water inlet, and the valve core is provided with sealing rings on both sides of the first annular cavity and the second annular cavity.

[0010] Preferably, the valve seat is provided with a penetrating socket on the outer wall of the first annular cavity and the second annular cavity, and the water inlet pipe and the water outlet pipe are respectively connected to the socket.

[0011] Preferably, the end of the valve core facing away from the plug-in portion is connected to a rotation button.

[0012] Preferably, the valve core passes through the transmission cavity at one end away from the plug-in portion, and the rotating button is provided with a plug at one end facing the valve core, and the plug seals the transmission cavity.

[0013] Preferably, the water inlet pipe and the water outlet pipe extend out of the accommodating chamber, and the water inlet pipe and the water outlet pipe are connected to a control valve outside the accommodating chamber.

[0014] Preferably, a camera module is connected to one end of the thin-walled steel pipe away from the outer shell, and the camera module seals the gap between the working tube and the inner wall of the thin-walled steel pipe.

[0015] Preferably, a plurality of suction holes are provided on the side wall of the thin-walled steel pipe, and the suction holes are connected to the connecting cavity.

[0016] Beneficial effects: The rotating connection between the valve core and the valve seat ensures that when the valve core drives the thin-walled steel pipe to rotate, it will not drive the valve seat and the connected water, gas and liquid outlet pipes, thus avoiding the problem of pipe entanglement and ensuring the stability and reliability of equipment operation;

[0017] The sealed cavity formed by the sealing ring in the valve seat effectively isolates the liquid outlet pipe and the liquid inlet pipe, prevents liquid leakage, ensures the normal operation of the water inlet and outlet functions, and maintains the pressure balance in the uterine cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 Schematic diagram of the internal structure of the accommodating cavity of the present invention;

[0020] Figure 3 This is a schematic diagram of the end structure of a thin-walled steel pipe according to the present invention;

[0021] Figure 4 This is a schematic diagram of the valve seat and valve core structure of the present invention;

[0022] Figure 5It is a schematic diagram of the cross-sectional structure of the valve seat and valve core of the present invention.

[0023] Figure numerals: 11. outer shell; 12. accommodating chamber; 13. valve core; 14. valve seat; 15. thin-walled steel pipe; 16. rotating button; 17. connecting chamber; 18. clamp channel silicone part; 19. transmission chamber; 20. working tube; 21. camera module; 22. suction hole; 23. sealing structure; 24. water inlet pipe; 25. water outlet pipe; 26. sealing ring; 27. first water outlet; 28. second water outlet; 29. ​​first annular cavity; 30. second annular cavity; 31. socket; 32. control valve; 33. annular cavity; 34. head end seat. DETAILED DESCRIPTION

[0024] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Example

[0026] like Figure 1 and Figure 2 As shown, a hysteroscope includes a shell 11, and a receiving cavity 12 is provided in the shell 11. The shell 11 is a common handheld structure, which is composed of symmetrically arranged half shells.

[0027] The housing 11 is provided with a valve core 13 in the accommodating chamber 12 . The outer side of the valve core 13 is rotatably connected to a valve seat 14 . The valve seat 14 is fixed to the inner wall of the accommodating chamber 12 by bolts.

[0028] Among them, the valve core 13 extends axially out of the valve seat 14, and one end of the valve core 13 is connected to a thin-walled steel pipe 15. It should be noted here that the thin-walled steel pipe 13 is used to insert working instruments and transport liquids such as physiological saline into the interior of the uterine cavity. The other end of the valve core 13 is connected to a rotating button 16, which controls the rotation space of the valve core 13 by rotating the button 16.

[0029] Furthermore, the rotation button 16 is rotatably mounted on the inner wall of the accommodating chamber 12 , and the rotation button 16 abuts against the end of the valve core 13 . The rotation button 16 drives the valve core 13 to rotate through friction.

[0030] The valve core 13 is axially provided with a connecting cavity 17, which axially penetrates the valve core 13. A plug for sealing the connecting cavity 17 is provided on the side of the rotating button 16 facing the valve core 13. In this embodiment, the plug is a clamp channel silicone member 18, which is a sleeve structure. The clamp channel silicone member 18 is sleeved on the end of the valve core 13, and the end sealing of the connecting cavity 17 is achieved by extrusion, while increasing the friction between the valve core 13 and the rotating button 16.

[0031] The valve core 13 is connected to a working channel, a flushing channel and a suction channel.

[0032] Among them, the working channel includes a thin-walled steel pipe 15, which is provided with a transmission cavity 19 with both ends passing through it. One end of the thin-walled steel pipe 15 is inserted into the connecting cavity 17, and the transmission cavity 19 and the connecting cavity 17 are connected. The other end of the thin-walled steel pipe 15 extends out of the accommodating cavity 12, which is convenient for insertion into the patient's body.

[0033] Furthermore, the thin-walled steel pipe 15 is provided with a working pipe 20 in the transmission cavity 19. The outer diameter of the working pipe 20 is smaller than the inner diameter of the thin-walled steel pipe 15, so as to facilitate the separation of two transmission channels inside the thin-walled steel pipe 15. When in use, the working tool enters the connecting cavity 17 inside the valve core 13 from the clamp channel silicone part 18, and the working tool passes through the working pipe 20 during transmission.

[0034] like Figure 3 As shown, the end of the thin-walled steel tube 15 facing away from the shell is also connected to a camera module 21. The camera module 21 is used to follow the thin-walled steel tube 15 into the patient's body and provide real-time feedback on the internal situation.

[0035] Furthermore, the head end seat 34 includes a camera module 21. The head end seat 34 is a sealing structure. The head end seat 34 is used to seal the gap between the thin-walled steel pipe 15 and the working pipe 20 to ensure that only the opening of the working pipe 20 is exposed to the outside, thereby realizing the separation of the opening between the thin-walled steel pipe 15 and the working pipe 20. At the same time, a camera and a lighting lamp are fixedly installed on the head end seat 34. The camera and the lighting lamp are both fixed to the end of the thin-walled steel pipe 15. The camera and the lighting lamp are connected to the control module through wires. The control module is fixedly installed in the accommodating cavity 12. The wire passes through the transmission cavity 19 of the thin-walled steel pipe 15. The wire passes through the thin-walled steel pipe 15 and the control module in the transmission cavity 19.

[0036] The flushing pipe is used for flushing and cleaning the patient's interior through the external pipeline, and the suction pipe is used to absorb the waste liquid from the internal affected area. The flushing pipe performs flushing through the working pipe 20, and the suction pipe performs suction through the gap between the working pipe 20 and the thin-walled steel pipe 15. Therefore, a number of suction holes 22 are provided on the side wall of the thin-walled steel pipe 15, and the suction holes 22 are connected to the transmission cavity 19 to realize separation.

[0037] Preferably, four suction holes 22 are provided and symmetrically arranged on both sides of the axis of the thin-walled steel pipe 15, and the suction holes 22 on both sides are arranged along the axis.

[0038] Furthermore, the interior of the valve core 13 is also separated into a flushing pipe and a suction pipe.

[0039] like Figure 4As shown, in order to ensure the normal operation of the working tube 20, the length of the working tube 20 is longer than the thin-walled steel tube 15, and the working tube 20 and the thin-walled steel tube 15 extend out of the connecting cavity 17. At the same time, the working tube 20 abuts against the inner wall of the connecting cavity 17. Furthermore, the valve core 13 is provided with a sealing structure 23 in the connecting cavity 17. The sealing structure 23 is located between the end of the working tube 20 and the end of the thin-walled steel tube 15 to achieve a partition effect.

[0040] The sealing structure 23 abuts against the inner wall of the connecting cavity 17, and at the same time, the sealing structure 23 abuts against the working tube 20. The sealing structure can be an annular structure integrally formed with the valve core, and a rubber ring can also be used to achieve the separation of the inner cavity of the transmission cavity 19 and the working tube 20.

[0041] At the same time, the outer wall of the thin-walled steel pipe 15 abuts against the inner wall of the connecting cavity 19, and a sealing structure can also be provided at the abutting point to ensure the normal operation of the suction pipe.

[0042] Furthermore, the flushing pipe includes a water inlet pipe 24 , and the suction pipe includes a water outlet pipe 25 . Both the water inlet pipe 24 and the water outlet pipe 25 are connected to the valve seat 14 .

[0043] like Figure 5 As shown, the valve seat 14 is provided with an annular cavity 33 with both ends passing through it. The openings at both ends of the valve seat 14 abut against the valve core 13. At the same time, the valve seat 14 is provided with a sealing ring 26 at the abutting contact to ensure the sealing effect of the annular cavity 33.

[0044] The valve core 13 is provided with a first water port 27 and a second water port 28 radially penetrating the connecting cavity 17 . The first water port 27 and the second water port 28 are respectively located on both axial sides of the sealing structure 23 to separate the flushing channel and the suction channel.

[0045] Furthermore, the valve seat 14 is also provided with a sealing ring 26 in the annular cavity 33. The sealing ring 26 is relatively located between the first water outlet 27 and the second water outlet 28. The sealing ring 26 simultaneously abuts the inner wall of the annular cavity 33 and the outer wall of the valve core 13. The three sealing rings 26 can separate the annular cavity 33 into a first annular cavity 29 and a second annular cavity 30. The first annular cavity 29 is connected to the first water outlet 27, and the second annular cavity 30 is connected to the second water outlet 28, thereby realizing the connection between the flushing channel and the suction channel.

[0046] A socket 31 is connected to the outer wall of the valve seat 14. There are two sockets 31. The sockets 31 are used to connect the annular cavity 33 and the water inlet pipe 24 and the water outlet pipe 25. The two sockets 31 are relatively located in the radial direction of the first annular cavity 29 and the second annular cavity 30. The sockets 31 pass through the valve seat 14, the outlet pipe 25 is plugged into the outside of the first annular cavity 29, and the water inlet pipe 24 is plugged into the socket 31 outside the second annular cavity 30.

[0047] A certain gap is left between the inner wall of the annular cavity 33 and the outer wall of the valve core 13 to facilitate the circulation of water in the annular cavity 33. When the valve core 13 rotates, the outlet pipe 24 and the inlet pipe 25 are fixed without affecting the flow of water, effectively preventing the inlet pipe 25 and the outlet pipe 24 from being entangled.

[0048] Furthermore, the water inlet pipe 24 and the water outlet pipe 25 are both connected to a control valve 32 , and the control valve 32 is located outside the accommodating chamber 12 .

[0049] Among them, the control valve 32 of the water inlet pipe 24 is a water inlet valve, which is connected to the positive pressure end of the flushing and suction pump. Water vapor enters from the water inlet valve and is finally discharged through the working pipe 20.

[0050] The control valve 32 of the water outlet pipe 25 is a return valve. When the waste liquid suction function is not used, the return valve is in a closed state. The return valve is connected to the negative pressure end of the flushing and suction pump.

[0051] The control valve 32 is a rotary control valve, which is blocked by turning the knob to control the flushing and suction functions.

[0052] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A hysteroscope, comprising a housing, wherein a receiving cavity is provided in the housing, wherein: A valve core is installed on the inner wall of the accommodating cavity, and a connecting cavity is axially provided on the valve core. The valve core is connected to a working channel, a flushing channel and a suction channel. The working channel includes a thin-walled steel pipe plugged into the valve core, a transmission cavity is provided in the thin-walled steel pipe, and a working pipe is provided in the transmission cavity. The plug-in portion extends into the connecting cavity, and a valve seat is rotatably connected to the circumference of the valve core, and an annular cavity connected to the transmission cavity is provided in the valve seat. The valve seat is connected to the flushing channel and the suction channel.

2. A hysteroscope according to claim 1, characterized in that: The length of the working tube is longer than that of the thin-walled steel tube. The valve core is provided with a sealing structure on the inner wall of the connecting cavity, and the sealing structure abuts against the outer wall of the working tube.

3. A hysteroscope according to claim 2, characterized in that: The valve core is provided with a first water port and a second water port on both axial sides of the sealing ring respectively; the flushing channel includes a water inlet pipe connected to the second water port; the suction channel includes a water outlet pipe connected to the first water port.

4. A hysteroscope according to claim 3, characterized in that: The annular cavity is divided into a first annular cavity and a second annular cavity at the first water inlet and the second water inlet, and the valve core is provided with sealing rings on both sides of the first annular cavity and the second annular cavity.

5. A hysteroscope according to claim 4, characterized in that: The valve seat is provided with a penetrating plug-in seat on the outer wall of the first annular cavity and the second annular cavity, and the water inlet pipe and the water outlet pipe are respectively connected to the plug-in seat.

6. A hysteroscope according to claim 4, characterized in that: One end of the valve core facing away from the plug-in portion is connected with a rotation button.

7. A hysteroscope according to claim 6, characterized in that: The valve core passes through one end of the transmission cavity away from the plug-in portion, and a plug is provided on one end of the rotation button facing the valve core, and the plug seals the transmission cavity.

8. A hysteroscope according to claim 3, characterized in that: The water inlet pipe and the water outlet pipe extend out of the accommodating chamber, and the water inlet pipe and the water outlet pipe are connected to a control valve outside the accommodating chamber.

9. The hysteroscope according to claim 1, characterized in that: A camera module is connected to one end of the thin-walled steel pipe away from the shell, and the camera module seals the gap between the working pipe and the inner wall of the thin-walled steel pipe.

10. A hysteroscope according to claim 9, characterized in that: A plurality of suction holes are provided on the side wall of the thin-walled steel pipe, and the suction holes are communicated with the connecting cavity.

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