Endoscope handle and endoscope system

Abstract

The utility model relates to an endoscope handle and an endoscope system. The endoscope handle comprises a shell, wherein a containing cavity with an opening is formed in the shell; the suction valve assembly comprises a valve seat, a valve body and a suction connector, the valve seat is arranged in the containing cavity and connected to the shell, part of the valve body penetrates through the opening and is detachably connected to the valve seat, part of the valve body is arranged outside the containing cavity and is connected to the suction connector, and the suction connector is used for being connected with a negative pressure device. According to the suction valve assembly, the valve seat and part of the valve body are arranged in the containing cavity, part of the valve body and the suction connector are arranged outside the containing cavity, and only the valve seat and part of the valve body need to be fixed to the shell, so that the internal structure of the shell is simplified, the occupied space of the suction valve assembly is reduced, and the assembly difficulty of the suction valve assembly and the shell is reduced; therefore, the assembling and disassembling difficulty of the endoscope handle is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of medical instruments, and in particular to an endoscope handle and an endoscope system. Background Art

[0002] An endoscope is a detection instrument that enters the body through the mouth or other natural orifices, and has functions such as image sensing and suction and removal of foreign matter. The endoscope suction valve assembly is a device that uses negative pressure to suck out liquid foreign matter in the body. By connecting one end of the suction valve assembly to the negative pressure device and the other end to the insertion tube inserted into the human body, the negative pressure device generates negative pressure, and the liquid foreign matter such as the accumulated fluid in the diseased tissue in the human body and the removed diseased tissue is sucked out by the insertion tube and the suction valve assembly.

[0003] In the related art, the suction valve assembly is assembled with the housing to form an endoscope handle, so as to control the suction process of liquid foreign matter. However, the suction valve assembly often occupies a large space in the housing, and the internal structure of the housing is complex, which increases the difficulty of loading and unloading the endoscope handle. Summary of the invention

[0004] Based on this, it is necessary to provide an endoscope handle and an endoscope system to address the above technical problems, so as to reduce the space occupied by the suction valve assembly and simplify the internal structure of the shell.

[0005] On the one hand, the present application provides an endoscope handle, an endoscope handle, the endoscope handle comprising: a shell, a accommodating cavity with an opening formed in the shell; and a suction valve assembly, the suction valve assembly comprising a valve seat, a valve body and a suction connector, the valve seat is arranged in the accommodating cavity and connected to the shell, part of the valve body is passed through the opening and is detachably connected to the valve seat, and part of the valve body is arranged outside the accommodating cavity and connected to the suction connector, and the suction connector is used to connect a negative pressure device.

[0006] In the above-mentioned endoscope handle, the valve seat and part of the valve body are arranged in the accommodating cavity, and part of the valve body and the suction connector are arranged outside the accommodating cavity, and only the valve seat and part of the valve body need to be fixed to the shell, which helps to simplify the internal structure of the shell and reduce the space occupied by the suction valve assembly. The detachable connection between the valve seat and the valve body reduces the difficulty of assembling the suction valve assembly itself and the suction valve assembly and the shell, thereby reducing the difficulty of loading and unloading the endoscope handle.

[0007] In one embodiment, the valve seat includes an inserting portion, the inserting portion is arranged toward the opening, and a portion of the valve body passes through the opening and is inserted into the inserting portion.

[0008] In one embodiment, the valve body is formed with a flow channel, a liquid inlet channel is formed in the valve seat, the suction joint can form a negative pressure channel, and the flow channel is connected to the negative pressure channel and the liquid inlet channel; the suction valve assembly also includes a valve core, the valve core can move in the flow channel and one end of the valve core can block the connection between the liquid inlet channel and the flow channel.

[0009] In one embodiment, the suction valve assembly further includes a pressing piece, the other end of the valve core is connected to the pressing piece, the pressing piece is sleeved on the end of the valve body away from the valve seat, and the pressing piece can move relative to the valve body and drive the valve core to move in the flow channel.

[0010] In one embodiment, a first connecting hole is further provided on the valve body, and the first connecting hole is arranged between the suction joint and the end of the valve body away from the valve seat. The first connecting hole is used to connect the external gas and the flow channel, and the pressing member can block the first connecting hole.

[0011] In one of the embodiments, a guide portion is further provided in the valve body, the guide portion is arranged between the first communicating hole and the suction joint, the valve core is passed through the guide portion and is connected to the pressing member.

[0012] In one embodiment, the suction valve assembly further includes a reset member, and two ends of the reset member are respectively in contact with the valve body and the pressing member.

[0013] In one embodiment, the valve body and the suction connector are integrally formed.

[0014] In one embodiment, the valve body is rotatable relative to the housing and the valve seat.

[0015] In one embodiment, the shell is provided with a first rotating part at the opening, and the valve body is provided with a second rotating part, and the second rotating part is rotatably connected to the first rotating part.

[0016] In one embodiment, the housing or the valve body further includes a limiting portion, and the limiting portion is used to limit the rotation of the first rotating portion relative to the second rotating portion.

[0017] On the other hand, the present application provides an endoscope system, which includes the endoscope handle as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG. 1 is a schematic diagram of an endoscope handle in an embodiment of the present application.

[0019] FIG. 2 is a schematic diagram of a partial disassembly of an endoscope handle in an embodiment of the present application.

[0020] FIG. 3 is a schematic diagram of a housing in an embodiment of the present application.

[0021] FIG. 4 is a schematic diagram of a suction valve assembly in an embodiment of the present application, wherein the pressing member is in a first position.

[0022] FIG. 5 is a schematic diagram of a suction valve assembly in an embodiment of the present application, wherein the pressing member is in the second position.

[0023] Description of reference numerals:

[0024] 100. Endoscope handle; 10. Shell; 11. First shell; 12. Second shell; 13. Accommodating chamber; 14. Opening; 15. Mounting portion; 16. First rotating portion; 17. Limiting portion; 20. Suction valve assembly; 21. Valve seat; 211. Plug-in portion; 212. Connecting portion; 213. Liquid inlet channel; 214. Fixing portion; 22. Valve body; 221. Flow channel; 222. First communicating hole; 223. Guide portion; 224. Second rotating portion; 23. Suction joint; 231. Negative pressure channel; 24. Valve core; 241. Valve stem; 242. Boss; 25. Pressing member; 26. Resetting member; 27. Sealing unit; 271. First sealing member; 272. Second sealing member; 273. Third sealing member. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0026] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0027] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0029] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0030] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0031] In particular, in the description of this application, those skilled in the art should understand that, unless otherwise clearly specified and limited, the terms "proximal end" and "distal end" are relative to the operator; the "proximal end" is the end of the endoscope operating handle that is closer to the user in one-dimensional direction when it is held and operated, and the "distal end" is the end of the endoscope operating handle that is farther away from the user in one-dimensional direction when it is held and operated. And those skilled in the art should understand that "far" and "near" do not refer to the three-dimensional space straight-line distance from the user.

[0032] Referring to FIG. 1 and FIG. 2 , FIG. 1 and FIG. 2 show schematic diagrams of an endoscope handle in an embodiment of the present application. An endoscope handle 100 provided in an embodiment of the present application includes a housing 10 and a suction valve assembly 20. In conjunction with FIG. 3 , a housing cavity 13 is formed in the housing 10, and the housing cavity 13 can accommodate an insertion tube inserted into the human body, and the distal end of the insertion tube can reach the diseased tissue. Specifically, the housing 10 includes a first housing 11 and a second housing 12, and the first housing 11 is connected to the second housing 12, so that the interiors of the first housing 11 and the second housing 12 jointly form a housing cavity 13.

[0033] The suction valve assembly 20 is used to connect the insertion tube and the negative pressure device. The negative pressure generated by the negative pressure device sucks out the liquid foreign matter such as the diseased tissue at the distal end of the insertion tube and the excised diseased tissue through the insertion tube. Specifically, referring to Figures 1 and 2, the suction valve assembly 20 includes a valve seat 21, a valve body 22 and a suction connector 23.

[0034] The valve seat 21 is used to connect the proximal end of the insertion tube and the valve body 22. The valve seat 21 is disposed in the accommodating cavity 13 and connected to the housing 10, so that the insertion tube is directly connected to the valve seat 21. Specifically, a fixing portion 214 is provided on the outer peripheral wall of the valve seat 21, and a mounting portion 15 is provided in the housing 10. By aligning and connecting the fixing portion 214 and the mounting portion 15, the valve seat 21 is fixed in the accommodating cavity 13 of the housing 10.

[0035] Part of the valve body 22 is disposed in the opening 14 and is detachably connected to the valve seat 21, and part of the valve body 22 is disposed outside the accommodating chamber 13 and is connected to the suction joint 23, which is used to connect the negative pressure device to achieve the connection between the suction valve assembly 20 and the negative pressure device. Preferably, the suction joint 23 and the valve body 22 are integrally arranged to improve the sealing and connection strength between the suction joint 23 and the valve body 22. In other embodiments, the suction joint 23 is detachably connected to the valve body 22.

[0036] The valve seat 21 and part of the valve body 22 are arranged in the accommodating cavity 13, and the part of the valve body 21 and the suction connector 23 are arranged outside the accommodating cavity 13. Only the valve seat 21 and part of the valve body 21 need to be fixed to the shell 10. This helps to simplify the internal structure of the shell 10, reduce the space occupied by the suction valve assembly 20, reduce the difficulty of assembling the suction valve assembly 20 and the shell 10, and thus reduce the difficulty of loading and unloading the endoscope handle 20.

[0037] Furthermore, the detachable connection between the valve seat 21 and the valve body 22 facilitates installation and replacement of the valve body 22 , reduces the difficulty of installation and disassembly of the suction valve assembly 20 , and helps the suction valve assembly 20 to be suitable for different negative pressure devices.

[0038] Further, the valve seat 21 includes a plug-in portion 211, which is arranged toward the opening 14, so that the valve body 22 can be plugged into the valve seat 21. Part of the valve body 22 is inserted into the opening 14 of the housing 10 and plugged into the plug-in portion 211, so as to achieve the connection between the valve body 22 and the valve seat 21. Specifically in this embodiment, the fixing portion 214 is connected to the plug-in portion 211 and protrudes from the plug-in portion 211 toward the inner wall of the housing 10, so that the plug-in portion 211 is arranged toward the opening 14.

[0039] Generally, the shape of the plug-in portion 211 matches the shape of the part of the valve body 22 for plugging. Specifically, the plug-in portion 211 can be set as a plug-in slot, the opening of which is set toward the opening 14 of the housing 10, and the size and shape of the plug-in slot match the size and shape of the outer periphery of the part of the valve body 22, so that the part of the valve body 22 can be plugged into the plug-in slot to achieve the connection between the valve body 22 and the valve seat 21.

[0040] In an embodiment not shown, the size and shape of the plug-in portion 211 may match the size and shape of the inner cavity of a portion of the valve body 22 , so that the valve body 22 and the valve seat 21 can be connected by plugging the plug-in portion 211 into the inner cavity of the valve body 22 .

[0041] Optionally, the connection mode of the plug-in portion 211 and the valve body 22 is interference fit or elastic deformation combination. Interference fit can improve the stability of the assembly of the valve body 22 and the valve seat 21, and ensure the continuous normal operation of the suction valve assembly 20. Elastic deformation combination helps to improve the convenience of installation of the valve body 22 and the valve seat 21, and improve the assembly accuracy and assembly applicability of the valve body 22 and the valve seat 21.

[0042] In this embodiment, the valve seat 21 further includes a connecting portion 212, which is connected to an end of the plug-in portion 211 away from the opening 14, and is disposed toward the direction of the insertion tube. The size and shape of the connecting portion 212 match the size and shape of the insertion tube, so that the insertion tube and the valve seat 21 are connected by connecting the insertion tube with the connecting portion 212. The arrangement of the connecting portion 212 helps to make the valve seat 21 suitable for different insertion tubes and helps to improve the connection strength between the valve seat 21 and the insertion tube. Preferably, the plug-in portion 211, the connecting portion 212 and the fixing portion 214 are integrally arranged to enhance the overall strength of the valve seat 21 itself.

[0043] The suction valve assembly 20 and the shell 10 can be assembled by first fixing the valve seat 21 in the accommodating cavity 13 of the shell 10 with the plug-in portion 211 facing the opening 14, then connecting the insertion tube to the valve seat 21, and finally passing the valve body 22 through the opening 14 of the shell 10 and plugging it into the plug-in portion 211 of the valve seat 21, and finally connecting the first shell 11 and the second shell 12.

[0044] The assembly process does not need to align the valve seat 21 with the insertion tube, and does not need to position the insertion tube, which helps to further simplify the internal structure of the housing 10. When assembling the suction valve assembly 20, it is only necessary to plug the valve body 22 into the valve seat 21. The installation process is simple and convenient, which reduces the difficulty of installing the suction valve assembly 20.

[0045] In some embodiments, referring to FIG. 4 and FIG. 5 , the valve body 22 is formed with a flow channel 221 , a liquid inlet channel 213 is formed in the valve seat 21 , the suction connector 23 can form a negative pressure channel 231 , and the flow channel 221 is connected to the negative pressure channel 231 and the liquid inlet channel 213 .

[0046] By connecting the negative pressure device to the suction connector 23, the accumulated fluid in the diseased tissue at the distal end of the insertion tube and liquid foreign matter such as the removed diseased tissue are sucked out of the human body through the liquid inlet channel 213, the flow channel 221 and the negative pressure channel 231 under the action of negative pressure.

[0047] Furthermore, the suction valve assembly 20 further includes a valve core 24, which can move in the flow channel 221 of the valve body 22 and one end of the valve core 24 can block the connection between the liquid inlet channel 213 and the flow channel 221. Generally, the negative pressure device is always in an open working state, so that the valve core 24 moves in the flow channel 221 to control the connection or blocking of the liquid inlet channel 213 and the flow channel 221, so that the suction process of the liquid foreign matter can be controlled to improve the accuracy of the suction of the liquid foreign matter.

[0048] Specifically, referring to Figures 4 and 5, the valve core 24 includes a valve stem 241 and a boss 242. The valve stem 241 is accommodated in the flow channel 221, and the outer peripheral surface of the valve stem 241 is spaced apart from the inner wall of the flow channel 221, so that the valve stem 241 will not affect the normal suction process, allowing liquid foreign matter to enter the flow channel 221 and enter the negative pressure channel 231 from the flow channel 221.

[0049] The boss 242 is connected to one end of the valve stem 241 close to the valve seat 21, and the shape and size of the boss 242 match the shape and size of the flow channel 221 to achieve the blocking between the flow channel 221 and the liquid inlet channel 213. Preferably, the valve stem 241 and the boss 242 are integrally connected, so that the boss 242 and the valve stem 241 have a high connection strength.

[0050] In some embodiments, referring to Fig. 1, Fig. 4 and Fig. 5, the suction valve assembly 20 further includes a pressing member 25, the suction connector 23 is disposed between the pressing member 25 and the housing 10, and the other end of the valve core 24 is connected to the pressing member 25, that is, the end of the valve stem 241 away from the valve seat 21 is connected to the pressing member 25. The pressing member 25 is sleeved on the end of the valve body 22 away from the valve seat 21 and can move relative to the valve body 22 along the central axis direction of the valve body 22, and drives the valve core 24 to move in the flow channel 221.

[0051] The arrangement of the pressing member 25 facilitates the control of the movement process of the valve core 24. By applying pressure to the pressing member 25, the pressing member 25 moves relative to the valve body 22 in a direction close to the valve seat 21, and the valve core 24 moves toward the valve seat 21 along with the pressing member 25, and the liquid inlet channel 213 is connected to the flow channel 221, so that the liquid foreign matter at the distal end of the insertion tube can enter the flow channel 221 through the liquid inlet channel 213 under the action of negative pressure, and then be discharged from the negative pressure channel 231.

[0052] Furthermore, the suction valve assembly 20 further includes a reset member 26, the two ends of which are respectively in contact with the valve body 22 and the pressing member 25, and the reset member 26 is used to reset the pressing member 25. After the liquid foreign matter is sucked out, the pressing member 25 is released, and the pressing member 25 can be restored to its initial position under the action of the reset member 26, thereby improving the convenience of using the suction valve assembly 20.

[0053] Optionally, the reset member 26 is a spring, which is sleeved on the valve core 24, with one end abutting against the valve body 22 and the other end abutting against the pressing member 25, and applying pressure to the pressing member 25 to cause the spring to undergo elastic deformation. When the pressure is removed, the spring recovers the deformation, and the pressing member 25 returns to its initial position. In other embodiments, the reset member 26 may also be an elastic member made of an elastic material, such as a spring, to achieve the reset of the pressing member 25.

[0054] Furthermore, since the negative pressure device connected to the valve body 22 may always be in working state, when no pressure is applied to the pressing member 25, the flow channel 221 of the valve body 22 is blocked by the valve core 24, and there is a pressure difference between the flow channel 221 and the liquid inlet channel 213. In order to prevent the pressure difference inside the flow channel 221 from being too large, the valve body 22 is further provided with a first communication hole 222, which is arranged between the suction joint 23 and the end of the valve body 22 away from the valve seat 21, and the pressing member 25 can block the first communication hole 222. The size of the first communication hole 222 can be set as needed.

[0055] The first connecting hole 222 is used to connect external gas and the flow channel 221, so that the external gas can enter the flow channel 221 through the first connecting hole 222, thereby balancing the negative pressure generated by the negative pressure device, maintaining stability in the flow channel 221, and further ensuring the stability of the suction valve assembly 20.

[0056] Specifically in this embodiment, the pressing member 25 has a first position and a second position relative to the valve body 22, and the second position is closer to the housing 10 than the first position. In the first position, refer to FIG4 , the pressing member 25 and the first connecting hole 222 are spaced apart, the flow channel 221 is connected to the external gas, and the valve core 24 blocks the connection between the liquid inlet channel 213 and the flow channel 221. At this time, the suction valve assembly 20 can remain stable under the action of the external gas. In the second position, refer to FIG5 , the pressing member 25 blocks the first connecting hole 222, and the valve core 24 conducts the connection between the liquid inlet channel 213 and the flow channel 221. At this time, the negative pressure device can attract the liquid foreign matter at the distal end of the insertion tube from the liquid inlet channel 213 to the flow channel 221, and then suck it out through the negative pressure channel 231.

[0057] In some embodiments, referring to FIG. 4 and FIG. 5 , the valve body 22 is further provided with a guide portion 223, which is disposed between the first communication hole 222 and the suction joint 23, and the valve core 24 is passed through the guide portion 223 and connected to the pressing member 25. The guide portion 223 is used to provide a guide for the installation of the valve core 24, so that the valve core 24 can be accurately connected to the pressing member 25. Preferably, the central axis of the guide portion 223 coincides with the central axis of the flow channel 221, so that the valve core 24 can move stably in the flow channel 221. Specifically in this embodiment, the two ends of the reset member 26 are respectively in contact with the inner wall of the pressing member 25 and the guide portion 223.

[0058] Furthermore, the guide portion 223 is provided with a guide hole and a second communication hole (not shown), the valve core 24 is inserted through the guide hole, and the second communication hole is used to connect the first communication hole 222 and the negative pressure channel 231. The size of the guide hole matches the size of the outer peripheral wall of the valve stem 241, so that the valve stem 241 can pass through the guide hole, and under the limit of the guide hole, the valve stem 241 can stably move in the flow channel 221 under the action of the pressing member 25, so as to accurately control the conduction state of the flow channel 221 and the liquid inlet channel 213.

[0059] The setting of the second connecting hole enables the first connecting hole 222 to always be connected to the negative pressure channel 231, and further when the pressing member 25 is in the first position, the negative pressure channel 231 can always be connected to the external air through the second connecting hole and the first connecting hole 222, thereby avoiding obstruction of the connection between the negative pressure channel 231 and the external air due to the guide hole penetrated by the valve stem 241, thereby improving the internal stability of the suction valve assembly 20 during use.

[0060] In some embodiments, in combination with Figures 1 to 5, the valve body 22 can rotate around the central axis of the opening 14 relative to the housing 10 and the valve seat 21, so that the suction connector 23 connected to the valve body 22 can rotate with the valve body 22 relative to the housing 10, so that the endoscope handle 100 can be suitable for clinical scenarios in different locations, thereby improving the applicability of the endoscope handle 100.

[0061] The housing 10 is provided with a first rotating portion 16 at the opening 14, and the valve body 22 is provided with a second rotating portion 224, which is connected to the first rotating portion 16 and can rotate relative to the first rotating portion 16 around the central axis of the opening 14. The provision of the first rotating portion 16 and the second rotating portion 224 facilitates the installation and positioning of the housing 10 and the valve body 22, so that the valve body 22 can be connected to the housing 10, thereby ensuring the installation stability of the valve body 22.

[0062] Optionally, the shell 10 is provided with a first rotating groove along the circumference of the opening 14, and the first rotating groove is configured as a first rotating portion 16. The first rotating groove is connected to the opening 14, and a protrusion is provided on the valve body 22, and the protrusion is configured as a second rotating portion 224. The shape of the protrusion matches the first rotating groove, so that the protrusion is installed in the first rotating groove, and the rotation connection between the shell 10 and the valve body 22 is realized by the rotation of the protrusion in the first rotating groove.

[0063] In an embodiment not shown in the figure, the valve body 22 is provided with a second rotation groove along the circumference of the valve body 22 itself, and the second rotation groove is configured as a second rotation portion 224. The shell 10 is provided with an extension portion along the circumference of the opening 14, and the extension portion matches the shape of the second rotation groove. The extension portion is configured as a first rotation portion 16, and the extension portion is connected to the second rotation groove and can rotate relative to the second rotation groove, thereby realizing the rotational connection between the valve body 22 and the shell 10.

[0064] Specifically in this embodiment, the housing 10 further includes a limiting portion 17, which is used to limit the rotation of the first rotating portion 16 relative to the second rotating portion 224. The setting of the limiting portion 17 allows the valve body 22 to rotate relative to the housing 10 at only a certain angle, so that by controlling the rotation direction and rotation angle of the valve body 22, the suction connector 23 connected to the valve body 22 can be matched with negative pressure devices at different positions, and is helpful for the convenience and comfort of the operator in clinical use.

[0065] Feasibly, when the first rotating groove is configured as the first rotating portion 16 and the protrusion is configured as the second rotating portion 224, the shell 10 is provided with a first rotating groove and a limiting portion 17 connected to each other along the circumference of the opening 14, the protrusion can rotate in the first rotating groove, and the limiting portion 17 forms the side wall of the first rotating groove along the circumferential side wall of the opening 14, so that when the protrusion abuts against the limiting portion 17, the limiting portion 17 can prevent the protrusion from continuing to rotate, or the limiting portion 17 is configured as a groove shape, and the size of the limiting portion 17 is smaller than the size of the protrusion, so that the limiting portion 17 can prevent the protrusion from continuing to rotate, or the groove-shaped limiting portion 17 is provided with a stop plate inside, and the stop plate prevents the protrusion from continuing to rotate.

[0066] In an embodiment not shown in the figure, the valve body 22 is provided with a second rotation groove and a limit portion connected to each other along the circumference of the valve body 22 itself, and the extension portion can rotate in the second rotation groove. When the extension portion abuts against the limit portion, the limit portion can prevent the second rotation groove from continuing to rotate relative to the extension portion.

[0067] In some embodiments, the suction valve assembly 20 further includes a sealing unit 27. The sealing unit 27 is used to provide sealing for the suction valve assembly 20 as a whole to prevent leakage of liquid foreign matter or air leakage.

[0068] Specifically, the sealing unit 27 includes a first sealing member 271, a second sealing member 272, and a third sealing member 273. The first sealing member 271 is used for sealing between the valve body 22 and the valve seat 21. The first sealing member 271 is disposed between the plug-in portion 211 and the valve body 22, so that when the valve body 22 is plugged into the plug-in portion 211, the plug-in portion 211 and the valve body 22 can be sealed, so that when the liquid foreign matter is sucked, the liquid foreign matter will not overflow into the accommodating cavity 13 of the housing 10 due to the gap between the plug-in portion 211 and the valve body 22.

[0069] The second sealing member 272 is sleeved on the valve stem 241 and is disposed between the boss 242 and the end of the valve body 22 away from the pressing portion, and is used to achieve sealing between the flow channel 221 and the liquid inlet channel 213, so that the valve core 24 can stably block the flow channel 221 and prevent air leakage or leakage of liquid foreign matter from the lower end of the flow channel 221.

[0070] The third sealing member 273 is sleeved on the valve body 22 and arranged between the suction joint 23 and the pressing member 25. The third sealing member 273 is used to realize the circumferential dynamic seal of the suction joint 23. When the pressing member 25 is in the second position, when the valve body 22 and the suction joint 23 rotate relative to the housing 10, the third sealing member 273 can keep the flow channel 221 in a sealed state, so that the liquid foreign matter is stably sucked out by the negative pressure device, and the air leakage between the pressing member 25 and the valve body 22 or the liquid foreign matter is prevented from leaking from between the pressing member 25 and the valve body 22. In other embodiments, the third sealing member 273 is arranged between the pressing member 25 and the valve body 22 to realize the sealing of the flow channel 221 and prevent the air leakage or the leakage of liquid foreign matter between the valve body 22 and the pressing member 25.

[0071] Based on the above-mentioned endoscope handle 100, the present application further provides an endoscope system, which includes the endoscope handle 100 in the above-mentioned embodiment. Specifically, the endoscope system in the embodiment of the present application can be a bronchoscope, a pyeloscope, an esophagoscope, a gastroscope, a colonoscope, an otoscope, a rhinoscope, a stomatoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope, etc. The embodiment of the present application does not specifically limit the type of endoscope.

[0072] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0073] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. An endoscope handle (100), characterized in that: The endoscope handle (100) comprises: A housing (10), wherein a receiving cavity (13) having an opening (14) is formed in the housing (10); and A suction valve assembly (20), the suction valve assembly (20) comprising a valve seat (21), a valve body (22) and a suction connector (23), the valve seat (21) being arranged in the accommodating chamber (13) and connected to the housing (10), a portion of the valve body (22) being passed through the opening (14) and being detachably connected to the valve seat (21), and a portion of the valve body (22) being arranged outside the accommodating chamber (13) and being connected to the suction connector (23), the suction connector (23) being used for connecting to a negative pressure device.

2. The endoscope handle according to claim 1, characterized in that: The valve seat (21) comprises a plug-in portion (211), the plug-in portion (211) being arranged towards the opening (14), and a portion of the valve body (22) being inserted through the opening (14) and plugged into the plug-in portion (211).

3. The endoscope handle according to claim 1, characterized in that: The valve body (22) is formed with a flow channel (221), a liquid inlet channel (213) is formed in the valve seat (21), the suction joint (23) is capable of forming a negative pressure channel (231), and the flow channel (221) is connected to the negative pressure channel (231) and the liquid inlet channel (213); the suction valve assembly (20) further comprises a valve core (24), the valve core (24) is capable of moving in the flow channel (221), and one end of the valve core (24) is capable of blocking the connection between the liquid inlet channel (213) and the flow channel (221).

4. The endoscope handle according to claim 3, characterized in that: The suction valve assembly (20) further comprises a pressing member (25), the other end of the valve core (24) being connected to the pressing member (25), the pressing member (25) being sleeved on the end of the valve body (22) away from the valve seat (21), the pressing member (25) being able to move relative to the valve body (22) and drive the valve core (24) to move in the flow channel (221).

5. The endoscope handle according to claim 4, characterized in that: The valve body (22) is also provided with a first connecting hole (222), the first connecting hole (222) being arranged between the suction connector (23) and an end of the valve body (22) away from the valve seat (21), the first connecting hole (222) being used for connecting external gas with the flow channel (221), and the pressing member (25) being capable of blocking the first connecting hole (222).

6. The endoscope handle according to claim 5, characterized in that: A guide portion (223) is also provided in the valve body (22), and the guide portion (223) is arranged between the first connecting hole (222) and the suction connector (23). The valve core (24) passes through the guide portion (223) and is connected to the pressing member (25).

7. The endoscope handle according to claim 4, characterized in that: The suction valve assembly (20) further comprises a reset member (26), wherein two ends of the reset member (26) respectively abut against the valve body (22) and the pressing member (25).

8. The endoscope handle according to claim 1, characterized in that: The valve body (22) and the suction connector (23) are integrally arranged.

9. The endoscope handle according to any one of claims 1 to 8, characterized in that: The valve body (22) is rotatable relative to the housing (10) and the valve seat (21).

10. The endoscope handle according to claim 9, characterized in that: The housing (10) is provided with a first rotating part (16) at the opening (14), and the valve body (22) is provided with a second rotating part (224), wherein the second rotating part (224) is rotatably connected to the first rotating part (16).

11. The endoscope handle according to claim 10, characterized in that: The housing (10) or the valve body (22) further comprises a limiting portion (17), wherein the limiting portion (17) is used to limit the rotation of the first rotating portion (16) relative to the second rotating portion (224).

12. An endoscope system, characterized in that: The endoscope system comprises the endoscope handle (100) according to any one of claims 1 to 11.

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