Medical endoscope camera shooting handle

By designing a medical endoscope camera handle that includes locking parts, pressure parts and sealing rings, the connection loosening or disconnection caused by easy rotation of the cable and the handle when connected is solved, and the stability and yield of the product are improved.

CN222787701UActive Publication Date: 2025-04-25HANGZHOU HAWK OPTICAL ELECTRONICS INSTR CO LTD
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Patent Information

Application Number
CN202421342428.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-12
Publication Date
2025-04-25
Estimated Expiration
2034-06-12

AI Technical Summary

Technical Problem

When connecting the cable to the camera, the existing medical endoscope camera handle is prone to rotate relative to each other, causing the connection inside the handle to be loose or disconnected after assembly, causing the camera to malfunction and the yield rate to be low.

Method used

A medical endoscope camera handle is designed, which adopts a combined structure of cable assembly and handle assembly. Through components such as locking parts, pressure parts and sealing rings, the cable and the handle are relatively fixed in the circumferential direction, and prevents the connections from loosening or disconnection caused by abnormal cable movement.

Benefits of technology

It effectively reduces camera failures due to assembly, improves product stability and yield, and ensures normal operation in environments with high humidity or fluids.

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Abstract

The utility model discloses a medical endoscope camera handle which comprises a cable assembly and a handle assembly, the handle assembly comprises a handle shell, the cable assembly comprises a locking piece, a pressing piece and a cable, one end of the cable extends into the handle shell, the cable is sleeved with the locking piece, the locking piece is provided with a plurality of locking parts distributed in the circumferential direction of the cable, and the locking parts are arranged on the handle shell. The pressing piece is provided with an abutting face, when the pressing piece is assembled on the locking piece, the abutting face gets close to and extrudes the locking part to enable the locking part to press the cable, the locking piece further comprises a first matching part, the inner wall of the handle shell is provided with a second matching part matched with the first matching part, and after the first matching part and the second matching part are matched, circumferential rotation of the locking piece and the cable is limited. Relative fixation of the cable and the handle in the circumferential direction is achieved when the cable and the camera are assembled, looseness or disconnection of internal connecting wires caused by abnormal movement of the cable during assembly is prevented, faults caused by assembly of the camera are effectively reduced, product stability is improved, and the product yield is increased.
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Description

Technical Field

[0001] The utility model relates to the field of endoscopes, in particular to a medical endoscope camera handle. Background Art

[0002] In the field of general surgery, there are many specialties including liver, gallbladder, pancreas, spleen, stomach, colorectum, appendix, hernia, thyroid, etc. Ordinary high-definition endoscope camera systems cannot delicately reflect the anatomical level and the recognition of blood vessels, and cannot distinguish the subtle differences of some tissues well. The 4K medical endoscope camera system can help doctors easily identify the relationship between important anatomical structures and surrounding tissues. Because it is a medical product, the product needs to be disinfected and sterilized, and the camera handle needs stable product quality and waterproofness.

[0003] However, it is difficult to install the camera handle in the prior art, especially when connecting the cable to the camera, the cable and the handle will rotate relative to each other, which may cause the connection inside the handle to loosen or disconnect after assembly, resulting in camera failure due to assembly and a low yield rate. Utility Model Content

[0004] In order to solve the problem that the cable and the handle rotate relative to each other when connecting the cable to the camera, the utility model provides a medical endoscope camera handle, which ensures that the cable and the handle are relatively fixed in the circumferential direction when the cable and the camera are assembled, preventing the internal connection from loosening or disconnecting due to abnormal movement of the cable during assembly, effectively reducing camera failures caused by assembly, improving product stability, and increasing product yield.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a medical endoscope camera handle, comprising a cable assembly and a handle assembly, the handle assembly comprising a handle shell, the cable assembly comprising a locking piece, a pressure piece and a cable with one end extending into the handle shell, the locking piece is sleeved on the cable, the locking piece is provided with a plurality of locking parts distributed along the circumference of the cable, the pressure piece is provided with an abutment surface, when the pressure piece is assembled on the locking piece, the abutment surface approaches and squeezes the locking part, so that the locking part presses the cable, the locking piece also comprises a first matching part, the inner wall of the handle shell is provided with a second matching part adapted to the first matching part, and the first matching part and the second matching part limit the circumferential rotation of the locking piece and the cable after adaptation.

[0006] After adopting the above technical scheme, the utility model has the following advantages: when installing or using the handle, the abutting surface of the pressure piece approaches and squeezes the locking part of the locking piece, so that the locking piece approaches and presses the cable, so that the locking piece and the cable will not move relative to each other, and then the first matching part of the locking piece and the second matching part of the inner wall of the handle shell abut against each other, so that the locking piece and the cable will not rotate circumferentially relative to the handle shell, avoiding abnormal rotation of the cable in the handle shell, and preventing abnormal rotation of the cable from causing the internal connection of the handle shell to loosen or disconnect, thereby reducing failures during installation or use of the handle and improving the stability of the product.

[0007] Furthermore, the handle assembly also includes a camera assembly, which is installed on the end face of the handle housing away from the cable, and the cable is connected to the camera assembly.

[0008] By adopting the above-mentioned technical solution, since the camera assembly is installed on the end face of the handle shell away from the cable, when installing the handle, the camera assembly can be installed along the axial direction of the cable after the camera assembly and the cable are connected, so that the connection between the camera assembly and the cable will be more convenient, which reduces the difficulty of installation and reduces the processing cost.

[0009] Furthermore, the camera assembly is fixedly mounted on the handle housing by at least two circumferentially evenly distributed fixing members.

[0010] With the aforementioned technical solution, since the cable and the handle housing will not move relative to each other in the circumferential direction, during installation, the camera assembly can be assembled by first connecting the cables and then directly fixing it to the handle housing through circumferentially evenly distributed fixing parts.

[0011] Furthermore, one end of the locking piece extends into the handle shell, and the other end extends out of the handle shell along the cable. The locking piece extending into the handle shell is provided with a boss, and the locking piece extending out of the handle shell is installed with a nut. The nut and the boss axially fix the locking piece by clamping the handle shell.

[0012] By adopting the above technical solution, when the abutment member is installed on the locking member extending out of the handle housing, the housing is clamped together by the nut and the boss inside and outside, thereby fixing the locking member, the cable and the handle housing.

[0013] Furthermore, a first sealing ring is installed on the side wall of the camera assembly, and the first sealing ring abuts against the inner wall of the handle housing to form a seal.

[0014] By adopting the above-mentioned technical solution, a first sealing ring is used to abut against the inner wall of the handle shell to form a seal, thereby preventing the fluid from entering the interior of the handle shell through the camera assembly, ensuring the safety of electronic equipment such as the camera and cables inside the handle shell, and being able to work normally in some working environments with high humidity or containing fluids, thereby increasing the life of the handle.

[0015] Furthermore, a second sealing ring is provided between the locking member extending out of the handle housing and the cable, and a tightening sleeve is connected to the inner thread of the locking member. The tightening sleeve forms a seal by pressing the second sealing ring against the gap between the locking member and the cable.

[0016] By adopting the above-mentioned technical solution, the second sealing ring is pressed against the gap between the locking piece and the cable by the tightening sleeve, so that the gap between the locking piece extending out of the handle shell and the cable is sealed, so that the fluid cannot enter the interior of the handle shell from the gap between the locking piece and the cable, thereby ensuring the safety of electronic equipment such as cameras and cables inside the handle shell.

[0017] Furthermore, an assembly portion is provided on the outer side of the locking member extending out of the handle housing, and a waterproof sheath is provided on the cable. The waterproof sheath is divided into an installation section and a support section along the axial direction of the cable, and the installation section is provided with a protrusion that is adapted to the groove provided on the assembly portion, and the support section and the cable are interference fit.

[0018] By adopting the above-mentioned technical solution, the waterproof sheath is installed on the outside of the locking member through the matching relationship between the assembly part on the outside of the locking member extending out of the handle shell and the installation section of the waterproof sheath, and then the supporting section of the waterproof sheath and the outer wall of the cable are interference fit, so that the waterproof sheath further increases the sealing between the locking member and the cable, while making it difficult for the soft cable to be broken at the connection, thereby increasing the strength of the cable connection.

[0019] Furthermore, a sleeve cover covering the abutment member and threadedly connected to the end of the handle housing is provided with a clamping portion. When the sleeve cover is installed on the housing, the clamping portion approaches and clamps the installation section.

[0020] By adopting the above-mentioned technical solution, the connection method of covering the abutment part and being threadedly connected to the handle shell is used to prevent the fluid from entering the interior of the handle shell from the gap between the handle shell and the locking part, and the pressing part of the sleeve cover is close to and presses the installation section to prevent the fluid from flowing into the interior of the handle shell from the gap between the sleeve cover and the waterproof sleeve, and a seal is formed between the installation section and the assembly part to prevent the fluid from flowing into the interior of the handle shell from the gap between the installation section and the assembly part.

[0021] Furthermore, a third sealing ring is installed on the side wall of the locking member, and the third sealing ring abuts against the inner wall of the handle housing to form a seal.

[0022] By adopting the above-mentioned technical solution, the third sealing ring on the side wall of the locking member and the inner wall of the handle housing abut against each other to form a seal, which further prevents the fluid from entering the interior of the handle housing through the gap between the handle housing and the locking member.

[0023] Furthermore, the handle assembly also includes a button assembly, and a fourth sealing ring is installed on the side wall of the button assembly. The fourth sealing ring and the handle housing abut against each other to form a seal.

[0024] By adopting the above-mentioned technical solution, the fourth sealing ring of the button assembly and the handle housing are abutted against each other, thereby improving the sealing between the button assembly and the handle housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The utility model is further described below in conjunction with the accompanying drawings:

[0026] Figure 1 This is a cross-sectional view of a medical endoscope camera handle of the utility model;

[0027] Figure 2 for Figure 1 The first enlarged view in

[0028] Figure 3 A three-dimensional schematic diagram of a medical endoscope camera handle;

[0029] Figure 4 for Figure 1 The second enlarged view in

[0030] Figure 5 for Figure 1 The third enlarged view in

[0031] Figure 6 This is a cross-sectional view of a medical endoscope camera handle before installation.

[0032] Figure numerals: 1. cable assembly; 11. cable; 12. locking piece; 121. locking portion; 122. first matching portion; 124. assembly portion; 125. boss; 13. pressure piece; 131. abutment surface; 132. second matching portion; 2. handle assembly; 21. handle housing; 22. camera assembly; 24. button assembly; 241. fourth sealing ring; 242. button seat; 243. silicone button pad; 244. pressing mother; 25. button hole; 3. abutment piece; 4. fixing piece; 5. first sealing ring; 6. second sealing ring; 7. third sealing ring; 8. waterproof jacket; 81. installation section; 82. support section; 9. jacket cover; 91. pressing portion. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0034] The terms "first", "second", etc. (if any) in the specification and claims of the present utility model are used to distinguish similar objects, rather than to describe a specific order or sequence. Even if "second" is used to distinguish a certain technical feature, it does not necessarily mean that it has "first". It should be understood that in the present utility model, "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. It should be understood that in the present utility model, "multiple" refers to two or more. "And / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, X and / or Y can represent: X exists alone, X and Y exist at the same time, and Y exists alone. The character " / " generally indicates that the related objects before and after are in an "or" relationship. "Contains X, Y and Z", "Contains X, Y, Z" means that X, Y, and Z are all included, "Contains X, Y or Z" means that one of X, Y, and Z is included, and "Contains X, Y and / or Z" means that any one, any two, or three of X, Y, and Z are included.

[0035] The following specific embodiments are used to describe the technical solution of the utility model in detail. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0036] like Figures 1 to 6 As shown, the utility model provides a medical endoscope camera handle, including a cable assembly 1 and a handle assembly 2, the handle assembly 2 including a handle shell 21, the cable assembly 1 including a locking member 12, a pressure member 13 and a cable 11 with one end extending into the handle shell 21, the locking member 12 is sleeved on the cable 11, the locking member 12 is provided with a plurality of locking portions 121 distributed circumferentially along the cable 11, the pressure member 13 is provided with an abutment surface 131, when the pressure member 13 is assembled on the locking member 12, the abutment surface 131 approaches and squeezes the locking portion 121, so that the locking portion 121 presses the cable 11, the locking member 12 also includes a first matching portion 122, the inner wall of the handle shell 21 is provided with a second matching portion 132 adapted to the first matching portion 122, and the first matching portion 122 and the second matching portion 132 are adapted to limit the circumferential rotation of the locking member 12 and the cable 11.

[0037] After adopting the above technical scheme, the utility model has the following advantages: when installing or using the handle, the abutting surface 131 of the pressure-applying member 13 approaches and squeezes the locking portion 121 of the locking member 12, so that the locking member 12 approaches and presses the cable 11, so that the locking member 12 and the cable 11 will not move relative to each other, and then the first matching portion 122 of the locking member 12 abuts against the second matching portion 132 of the inner wall of the handle shell 21, so that the locking member 12 and the cable 11 will not rotate circumferentially relative to the handle shell 21, thereby avoiding abnormal rotation of the cable 11 in the handle shell 21, and preventing the abnormal rotation of the cable 11 from causing the internal connection of the handle shell 21 to loosen or disconnect, thereby reducing failures during installation or use of the handle and improving the stability of the product.

[0038] Specifically, the locking portion 121 of the locking member 12 is at the end face of the locking member 12, and the locking portion 121 is tilted, and the side close to the end face is tilted toward the axis of the cable 11. Similarly, the abutting surface 131 is also tilted at the end face of the pressure member 13, and the side away from the end face is tilted toward the axis of the cable 11, so that the fit between the locking portion 121 and the abutting surface 131 is smoother without too much wear, and the end of the locking member 12 where the locking portion 121 is located is a deformable material, and is evenly disconnected along the circumferential direction, so that when the abutting surface 131 applies pressure to the locking portion 121, it can deform and press the cable 11. The pressure member 13 and the locking member 12 are connected by threads.

[0039] In another embodiment, the locking member 12 is provided in a split manner, and is divided into a fixed section and a locking section along the axial direction of the cable, the locking section is provided with a locking portion 121, and the material of the locking section is set to be a deformable and retractable material such as rubber, an installation cavity adapted to the locking section is provided between the fixed section and the cable, a positioning rib is provided on the locking section, a positioning groove adapted to the positioning rib is provided on the side wall of the installation cavity, and the depth of the positioning groove is shorter than the length of the locking section. When installing the locking member, the fixed section is first sleeved on the cable, and then the locking section is installed into the fixed section through the positioning rib and the positioning groove, so that one end of the locking portion 121 extends out of the fixed section, and finally the pressure member is installed on the fixed section by threaded connection, so that the abutting surface 131 of the pressure member 13 approaches and squeezes the locking portion 121 of the locking member section, so that the locking section approaches and presses the cable 11, so that the locking member 12 and the cable 11 will not move relative to each other.

[0040] Furthermore, in order to reduce the difficulty of installation, the handle assembly 2 also includes a camera assembly 22 , and the camera assembly 22 is installed on the end face of the handle housing 21 away from the cable 11 , and the cable is connected to the camera assembly 22 .

[0041] By adopting the above-mentioned technical solution, since the camera assembly 22 is installed on the end face of the handle shell 21 away from the cable 11, when installing the handle, the camera assembly 22 can be installed along the axial direction of the cable 11 after the camera assembly 22 and the cable 11 are connected, so that the connection between the camera assembly 22 and the cable 11 will be more convenient, reducing the difficulty of installation and reducing processing costs.

[0042] Furthermore, the camera assembly 22 is fixedly mounted on the handle housing 21 via at least two fixing members 4 evenly distributed around the circumference.

[0043] With the above technical solution, since the cable 11 and the handle housing 21 are not relatively movable in the circumferential direction, during installation, the camera assembly 22 is first connected, and then the camera assembly 22 is directly fixed on the handle housing 21 through the circumferentially evenly distributed fixing members 4 to complete the assembly. Specifically, the fixing members 4 are screws, and preferably there are four fixing members 4.

[0044] Furthermore, one end of the locking piece 12 extends into the handle housing 21, and the other end extends out of the handle housing 21 along the cable 11. The locking piece 12 extending into the handle housing 21 is provided with a boss 125, and the locking piece 12 extending out of the handle housing 21 is installed with a nut. The nut and the boss 125 axially fix the locking piece 12 by clamping the handle housing 21.

[0045] With the above technical solution, when the abutment member 3 is installed on the locking member 12 extending out of the handle housing 21 , the nut and the boss 125 clamp the housing together inside and outside, thereby fixing the locking member 12 and the cable 11 to the handle housing 21 .

[0046] Furthermore, in order to increase the sealing between the camera assembly 22 and the handle housing 21, a first sealing ring 5 is installed on the side wall of the camera assembly 22, and the first sealing ring 5 abuts against the inner wall of the handle housing 21 to form a seal.

[0047] By adopting the above-mentioned technical solution, a first sealing ring 5 is used to abut against the inner wall of the handle shell 21 to form a seal, so as to prevent the fluid from entering the interior of the handle shell 21 through the camera assembly 22, thereby ensuring the safety of electronic equipment such as the camera and cable 11 inside the handle shell 21, and being able to work normally in some working environments with high humidity or containing fluids, thereby increasing the life of the handle.

[0048] Furthermore, in order to increase the waterproofness between the locking piece 12 and the cable 11, a second sealing ring 6 is provided between the locking piece 12 extending out of the handle housing 21 and the cable 11, and the locking piece 12 is internally threadedly connected with a tightening sleeve, and the tightening sleeve forms a seal by pressing the second sealing ring 6 against the gap between the locking piece 12 and the cable 11.

[0049] By adopting the above-mentioned technical solution, the second sealing ring 6 is pressed against the gap between the locking piece 12 and the cable 11 by the tightening sleeve, so that the gap between the locking piece 12 extending out of the handle housing 21 and the cable 11 is sealed, so that the fluid cannot enter the interior of the handle housing 21 through the gap between the locking piece 12 and the cable 11, thereby ensuring the safety of electronic equipment such as the camera and cable 11 inside the handle housing 21.

[0050] Furthermore, in order to increase the waterproofness between the cable 11 and the locking piece 12, an assembly portion 124 is provided on the outer side of the locking piece 12 extending out of the handle housing 21, and a waterproof sheath 8 is provided on the cable 11. The waterproof sheath 8 is divided into an installation section 81 and a support section 82 along the axial direction of the cable 11. The installation section 81 is provided with a protrusion that is adapted to the groove provided on the assembly portion 124, and the support section 82 and the cable 11 have an interference fit.

[0051] By adopting the above-mentioned technical solution, the waterproof sheath 8 is installed on the outside of the locking member 12 through the matching relationship between the assembly portion 124 on the outside of the locking member 12 extending out of the handle shell 21 and the mounting section 81 of the waterproof sheath 8. Then, through the interference fit between the supporting section 82 of the waterproof sheath 8 and the outer wall of the cable 11, the waterproof sheath 8 further increases the sealing between the locking member 12 and the cable 11, while making it difficult for the soft cable 11 to be broken at the connection, thereby increasing the strength of the cable 11 connection.

[0052] Specifically, the waterproof sheath 8 is made of a deformable and stretchable material such as rubber, so that the waterproof sheath 8 can be installed on the cable 11 in an interference fit manner.

[0053] Furthermore, in order to increase the sealing between the handle housing 21 and the locking member 12, a sleeve cover 9 is used to cover the abutment member 3 and is threadedly connected to the end of the handle housing 21. The sleeve cover 9 is provided with a clamping portion 91. When the sleeve cover 9 is installed on the outer shell, the clamping portion 91 approaches and clamps the installation section 81.

[0054] By adopting the above-mentioned technical solution, the connection method of covering the abutment member 3 and being threadedly connected to the handle shell 21 prevents the fluid from entering the interior of the handle shell 21 from the gap between the handle shell 21 and the locking member 12, and the clamping portion 91 of the sleeve cover 9 approaches and presses the mounting section 81 to prevent the fluid from flowing into the interior of the handle shell 21 from the gap between the sleeve cover 9 and the waterproof sleeve 8, and forms a seal between the mounting section 81 and the assembly portion 124 to prevent the fluid from flowing into the interior of the handle shell 21 from the gap between the mounting section 81 and the assembly portion 124.

[0055] Furthermore, in order to further improve the waterproofness between the locking member 12 and the handle housing 21, a third sealing ring 7 is installed on the side wall of the locking member 12, and the third sealing ring 7 abuts against the inner wall of the handle housing 21 to form a seal.

[0056] By adopting the above technical solution, the third sealing ring 7 on the side wall of the locking member 12 and the inner wall of the handle housing 21 abut against each other to form a seal, which further prevents the fluid from entering the interior of the handle housing 21 through the gap between the handle housing 21 and the locking member 12.

[0057] Furthermore, the handle assembly 2 also includes a button assembly 24 , and a fourth sealing ring 241 is installed on the side wall of the button assembly 24 . The fourth sealing ring 241 and the handle housing 21 abut against each other to form a seal.

[0058] By adopting the above technical solution, the fourth sealing ring 241 of the button assembly 24 and the handle housing 21 are abutted against each other, thereby improving the sealing between the button assembly 24 and the handle housing 21.

[0059] Specifically, the button assembly is composed of a fourth sealing ring 241, a button seat 242, a micro button, a pressure nut 244 and a silicone button pad 243, and a corresponding button hole 25 is provided on the handle. The bottom wall of the button seat 242 is provided with a through hole, which can be connected to the inside of the handle after installation. The installation process is to first install the fourth sealing ring 241 into the side wall of the button hole 25, then put the button seat 242, and then install the micro button into the button seat 242, and pass the circuit of the micro button through the through hole, and then install the silicone button pad 243, and finally install the pressure nut 244 and the side wall of the button hole 25 in a threaded connection manner, and the button assembly 24 is completed.

[0060] The installation process of the entire handle is as follows: first, use the locking piece 12 and the pressure piece 13 installed in the third sealing ring 7 to fix the cable 11, then connect the cable 11 and the circuit of the camera assembly 22 and the micro button circuit of the installed button assembly by welding, then extend the assembled locking piece 12 and cable 11 out of the handle housing 21, and fix the locking piece 12 and the handle housing 21 circumferentially through the first matching portion 122 and the second matching portion 132, then use the abutment piece 3 to thread the locking piece 12 extending out of the handle housing 21 to fix the locking piece 12 and the handle housing 21 in the axial direction, and then During this process, since the locking piece 12 and the handle housing 21 are circumferentially fixed, the cable 11 will not rotate circumferentially, resulting in a disconnection between the cable 11 and the welding circuit. Then, the second sealing ring 6 is installed in the waterproof cavity 123 through the threaded connection between the top tightening sleeve and the waterproof cavity 123, and the camera assembly 22 with the first sealing ring 5 is installed on the end face of the handle housing 21 through the fixing piece 4. Finally, the waterproof sheath 8 is installed on the assembly part 124 and the sheath cover 9 is installed on the locking piece 12 through a threaded connection. At the same time, the pressing part 91 presses the waterproof sheath 8 on the assembly part 124.

[0061] At this point, the interior of the handle is completely sealed, so that the handle can meet the requirements of cleaning, soaking and other disinfection after the operation, making the use of the handle more convenient and extending its life.

[0062] In addition to the above-mentioned preferred embodiments, the present invention also has other implementation modes. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present invention.

Claims

1. A medical endoscope camera handle, comprising a cable assembly and a handle assembly, wherein the handle assembly comprises a handle housing, characterized in that: The cable assembly includes a locking member, a pressure member and a cable with one end extending into a handle housing, the locking member is sleeved on the cable, the locking member is provided with a plurality of locking parts distributed circumferentially along the cable, the pressure member is provided with an abutment surface, when the pressure member is assembled on the locking member, the abutment surface approaches and squeezes the locking part, so that the locking part presses the cable, the locking member also includes a first matching part, the inner wall of the handle housing is provided with a second matching part adapted to the first matching part, and the first matching part and the second matching part limit the circumferential rotation of the locking member and the cable after being adapted.

2. A medical endoscope camera handle according to claim 1, characterized in that: The handle assembly further comprises a camera assembly, wherein the camera assembly is mounted on an end face of the handle housing away from the cable, and the cable is connected to the camera assembly.

3. A medical endoscope camera handle according to claim 2, characterized in that: The camera assembly is fixedly mounted on the handle housing via at least two fixing members evenly distributed around the circumference.

4. A medical endoscope camera handle according to claim 1, characterized in that: One end of the locking piece extends into the handle shell, and the other end extends out of the handle shell along the cable. The locking piece extending into the handle shell is provided with a boss, and the locking piece extending out of the handle shell is installed with a nut. The nut and the boss axially fix the locking piece by clamping the handle shell.

5. The medical endoscope camera handle according to claim 3, characterized in that: A first sealing ring is installed on the side wall of the camera assembly, and the first sealing ring abuts against the inner wall of the handle housing to form a seal.

6. The medical endoscope camera handle according to claim 1, characterized in that: A second sealing ring is provided between the locking member extending out of the handle housing and the cable, and a tightening sleeve is connected to the inner thread of the locking member. The tightening sleeve forms a seal by pressing the second sealing ring against the gap between the locking member and the cable.

7. A medical endoscope camera handle according to claim 2, characterized in that: An assembly portion is provided on the outer side of the locking piece extending out of the handle housing, and a waterproof sheath is provided on the cable. The waterproof sheath is divided into an installation section and a support section along the axial direction of the cable. The installation section is provided with a protrusion that is adapted to the groove provided on the assembly portion, and the support section and the cable have an interference fit.

8. The medical endoscope camera handle according to claim 7, characterized in that: The locking member extending out of the handle shell is installed with a nut, a sleeve cover covering the nut and threadedly connected to the end of the handle shell, and the sleeve cover is provided with a clamping portion. When the sleeve cover is installed on the shell, the clamping portion approaches and clamps the installation section.

9. The medical endoscope camera handle according to claim 1, characterized in that: A third sealing ring is installed on the side wall of the locking member, and the third sealing ring abuts against the inner wall of the handle housing to form a seal.

10. The medical endoscope camera handle according to claim 1, characterized in that: The handle assembly also includes a button assembly, a fourth sealing ring is installed on the side wall of the button assembly, and the fourth sealing ring and the handle housing abut against each other to form a seal.