Camera handle structure of laparoscope

Abstract

The utility model relates to the field of medical instruments, and discloses a laparoscope camera handle structure. The handle adopts human engineering design, a shell is made of medical aluminum alloy materials and comprises a front shell and a rear shell, and a CMOS image sensor, a heat dissipation copper sheet and an L-shaped support are arranged in the shell. A detachable optical filter assembly is arranged at the front end of the handle, a control button is arranged at the top of the handle, and multiple sealing design is adopted between the front shell and the rear shell. The center of gravity of the handle is concentrated in a front-end operation area to facilitate accurate control. The laparoscope camera handle structure has the advantages of being comfortable to hold, light in weight, good in heat dissipation performance, high in sealing performance, good in image quality and the like, the modular design is also convenient to maintain and replace, the accuracy, flexibility and safety of surgical operation are integrally improved, and the use cost is reduced.

Description

Technical Field

[0001] This application relates to the field of medical devices, and particularly to a laparoscopic camera handle structure for minimally invasive surgery. Background Art

[0002] Laparoscopic surgery is a common minimally invasive surgical technique that inserts an endoscope and special tools through small incisions to examine and treat patients' internal organs. Compared with traditional open surgery, laparoscopic surgery has less trauma and a shorter recovery time, so it has been widely used in the surgical field. However, during laparoscopic surgery, the surgeon needs to hold and manipulate the camera handle for a long time to ensure the precise positioning and image acquisition of the endoscope, which poses high requirements for the design of the handle.

[0003] Although some laparoscopic camera handles on the market can meet basic operation requirements, there are still some deficiencies in the process of use. First of all, traditional handles often neglect ergonomics in design and cannot fully adapt to the hand shape and holding habits of surgeons, which easily leads to hand fatigue of surgeons after long-term operation, affecting surgical efficiency and accuracy. Secondly, these handles usually use relatively hard materials, which can provide sufficient structural strength, but their weight is often relatively large, further increasing the operation burden of surgeons. In addition, due to the unreasonable fixing method of the CMOS component, the weight distribution of the handle is uneven, resulting in a poor grasping feeling during operation, which further affects the operation accuracy.

[0004] In the surgical environment, the temperature management and sealing of equipment are also crucial. The heat dissipation design of some existing handles is not perfect, and the CMOS component is prone to overheating during long-term use, which may lead to a decline in equipment performance or even damage. In addition, the sealing design of the handle is insufficient, resulting in the situation that liquid is likely to penetrate or be contaminated during the cleaning and disinfection of medical devices, affecting the safety of surgery.

[0005] In addition, during the operation, the endoscopic camera system has extremely high requirements for the processing of optical signals. The filter design of traditional handles is relatively simple and difficult to effectively filter unnecessary light, resulting in poor image quality and affecting the accuracy of surgery. Moreover, the cleaning and maintenance of the filter are also relatively difficult, and it is easy to shorten the service life of the equipment due to improper cleaning.

[0006] Therefore, there is an urgent need for a laparoscopic camera handle structure that is more ergonomic in design, more comfortable to operate, has better heat dissipation performance, higher sealing performance, and the filter is easier to clean and maintain to solve the above problems. This application proposes an improved laparoscopic camera handle structure for these technical problems. Utility Model Content

[0007] The purpose of this application is to provide a laparoscopic camera handle structure to solve the problems raised in the above background technology.

[0008] This application discloses a laparoscopic camera handle structure, including:

[0009] A housing assembly, the housing assembly includes: a front housing with a sealing ring groove at the tail end; a rear housing hermetically connected to the tail end of the front housing through a sealing ring;

[0010] A CMOS assembly fixed inside the front housing, the CMOS assembly includes: a CMOS image sensor fixedly connected to the inner cavity of the front housing, with the image acquisition end located at the square window at the front end of the front housing; an L-shaped bracket for fixing the CMOS image sensor; a heat dissipation copper sheet;

[0011] A filter assembly arranged at the square window at the front end of the front housing, including: a filter for filtering unnecessary optical signals; a front-end gasket with a square small window in the center adapted to the square window, fixed to the front end of the filter to protect the filter and enhance the sealing performance.

[0012] In a preferred example, the housing assembly is made of medical aluminum alloy material, and the housing assembly adopts an ergonomic streamline curved surface design with concave shapes on both sides. Among them, the concave shapes on both sides of the front housing are arc-shaped grooves, and the curvature radius design is adapted to the palm arc of the average adult to adapt to the hand shape and holding habit of the user;

[0013] The weight of the CMOS assembly is concentrated at the front end of the handle structure to provide better grip and operation accuracy; the heat dissipation copper sheet is used to conduct the heat generated by the CMOS image sensor to the housing assembly for heat dissipation;

[0014] And, the laparoscopic camera handle structure further includes:

[0015] A control assembly arranged on the top of the front housing, including: a rubber button snapped into the slot on the top of the front housing for switching different working modes of the CMOS assembly; a button fixing member for fixing the rubber button on the top of the front housing;

[0016] Among them, the front end, top end and rear end of the housing assembly all adopt a sealed structure design to ensure the overall sealing performance of the handle structure and meet the strict cleaning and disinfection requirements of medical devices.

[0017] In a preferred example, the medical aluminum alloy material is 6061 aluminum alloy.

[0018] In a preferred example, a front-end gasket is provided at the front end of the front housing. The front-end gasket is a circular thin sheet structure, and a square small window corresponding to the square window is opened at its center. The front-end gasket is made of silicone material or medical-grade stainless steel material to provide buffer protection and additional mechanical strength.

[0019] In a preferred example, three holes are provided on the right side of the CMOS image sensor, including a threaded hole in the middle for fixation and two positioning holes above and below for positioning; two positioning posts are provided at the front end of the inner cavity of the front housing, which cooperate with the two positioning holes on the right side of the CMOS image sensor.

[0020] In a preferred example, the rubber button is made of high-density silicone rubber material, and digital markings are provided on its surface to indicate different working modes of the CMOS component, so as to improve the durability and response speed of the button.

[0021] In a preferred example, a rear housing inner liner is further included. The rear housing inner liner is fixed to the front housing by screws and jointly forms a sealed structure with the rear housing.

[0022] In a preferred example, a tail fixing piece and a wire-bundling rubber are further included. The tail fixing piece is fixed to the rear housing inner liner by screws, and the wire-bundling rubber is fixed to the tail fixing piece by a rubber coating process, and is used for connecting with an external power supply wire harness and forming a second layer of sealing.

[0023] Compared with the prior art, the embodiments of the present application have at least the following differences and effects:

[0024] The laparoscopic camera handle structure provided by the present application pays attention to ergonomics and use comfort in design. By adopting a streamlined curved surface design and an arc-shaped concave shape, the handle can better adapt to the hand shape and holding habit of the surgeon, thereby helping to reduce the fatigue during long-term surgical operations. In addition, the handle is made of medical aluminum alloy material, which effectively reduces the overall weight while ensuring the structural strength, and further improves the operation flexibility and accuracy.

[0025] (1) The combination of ergonomic design and optimized weight distribution

[0026] By combining the streamlined curved surface design with the holding feeling of the arc-shaped concave shape in the present application, and fixing the CMOS component at the front end of the handle, the handle is not only more comfortable to hold, but also can maintain a stable center of gravity and a good grasping feeling during operation. This combined design can effectively reduce the fatigue of the surgeon and significantly improve the accuracy and stability of surgical operations.

[0027] (2) The combination of material selection and heat dissipation design

[0028] In the handle design of this application, medical aluminum alloy material is selected to reduce the total weight of the handle. At the same time, through a reasonably designed heat dissipation copper sheet, it is combined with a shell material with high thermal conductivity to ensure that the handle maintains a stable temperature during long-term use. This combined design of material and function not only reduces the weight of the device but also effectively solves the problem of possible performance degradation caused by overheating of the device during the operation.

[0029] 3. Combination of Multiple Sealing Structures and Filter Design

[0030] This application also improves the sealing performance of the handle structure by setting multiple sealing structures, including the sealed connection of the front and rear shells and the sealing design of the rubber buttons, making it suitable for the strict cleaning and disinfection requirements of medical devices. In addition, the filter assembly adopts a detachable design, which not only ensures the convenience of cleaning and maintenance but also maintains the sealing performance and anti-pollution ability of the handle. This combined design is particularly suitable for surgical environments with high hygiene requirements and helps to improve the safety and reliability of the device.

[0031] 4. Combination of Overall Operability and Maintenance Convenience

[0032] By comprehensively designing the ergonomic design, material selection, weight distribution, heat dissipation, and sealing structure, the laparoscopic camera handle structure of this application not only provides comfort and precision during surgical operations but also significantly improves the maintenance convenience and service life of the device. This comprehensive design not only solves multiple operation problems but also reduces the maintenance cost of the device, further enhancing the creativity of the invention.

[0033] Generally speaking, this application has been comprehensively optimized and improved in terms of comfort, operability, heat dissipation, and sealing performance, and can provide better support and guarantee for surgical operations, with very broad application prospects in the field of laparoscopy.

[0034] The specification of this application records a large number of technical features, which are distributed in various technical solutions. If all possible combinations of technical features (i.e., technical solutions) of this application were to be listed, the specification would become overly lengthy. To avoid this problem, each of the technical features disclosed in the above content, each of the technical features disclosed in the following embodiments and examples, and each of the technical features disclosed in the drawings can be freely combined with each other to form various new technical solutions (all of these technical solutions are considered to have been recorded in this specification), unless such a combination of technical features is technically infeasible. For example, in one example, features A+B+C are disclosed, and in another example, features A+B+D+E are disclosed. Features C and D are equivalent technical means that perform the same function, and only one of them can be used technically and it is impossible to use both simultaneously. Feature E can be combined with feature C technically. Then, the solution A+B+C+D should not be considered to have been recorded due to technical infeasibility, while the solution A+B+C+E should be considered to have been recorded. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 FIG. 6 is a schematic diagram of the overall structure of a laparoscopic camera handle structure according to the first embodiment of the present application.

[0036] Figure 2 FIG. 7 is an exploded view of the laparoscopic camera handle structure according to the first embodiment of the present application.

[0037] Figure 3 FIG. 8 is an exploded view of the CMOS component of the laparoscopic camera handle structure according to the first embodiment of the present application.

[0038] Figure 4 FIG. 9 is a schematic diagram of the internal structure of the front housing of the laparoscopic camera handle structure according to the first embodiment of the present application.

[0039] Figure 5 FIG. 10 is a schematic diagram of the assembled state of the CMOS component of the laparoscopic camera handle structure according to the first embodiment of the present application.

[0040] In all the drawings, the same reference numerals are used to denote the same elements or structures, where:

[0041] 1: Housing assembly

[0042] 1-1: Front housing

[0043] 1-2: Rear housing

[0044] 1-3: Inner liner of the rear housing

[0045] 1-4: Button fixing member

[0046] 1-5: Rubber button

[0047] 1-6: Tail fixing part

[0048] 1-7: Sealing ring groove

[0049] 1-8: Filter

[0050] 1-9: Front gasket

[0051] 1-10: Cable rubber

[0052] 2: CMOS component

[0053] 2-1: CMOS image sensor

[0054] 2-2: L-shaped bracket

[0055] 2-3: Heat dissipation copper sheet Detailed implementation manners

[0056] In the following description, many technical details are presented for the reader to better understand the present application. However, those of ordinary skill in the art can understand that even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed in the various claims of the present application can still be implemented. In addition, the technical features involved in the following embodiments of the present application can be combined with each other as long as they do not conflict with each other.

[0057] Explanation of some concepts:

[0058] Housing assembly: In this specification, it refers to the handle structure composed of a front housing and a rear housing, which is used to encapsulate and protect internal components and provide a gripping surface during surgical operations. The housing assembly is usually made of a lightweight and strong enough material, such as medical aluminum alloy.

[0059] Front housing: In this specification, it refers to a part of the housing assembly, located at the front end of the handle, with an ergonomic design, used to accommodate and fix the CMOS component and other related parts.

[0060] Rear housing: In this specification, it refers to a part of the housing assembly, located at the rear end of the handle, usually connected to the front housing through a sealing structure, used to further protect internal components and form the complete shape of the handle.

[0061] CMOS component: In this specification, it includes a CMOS image sensor and its related fixing and heat dissipation structures, and its main function is to receive and process image signals inside the abdominal cavity.

[0062] CMOS image sensor: In this specification, it refers to an image sensing device used to convert optical signals into digital image signals, and is commonly used in endoscopic devices to obtain high-definition images.

[0063] L-shaped bracket: In this specification, it refers to the structure used to support and fix the CMOS image sensor, usually made of metal material to ensure the stability and heat dissipation effect of the sensor.

[0064] Heat dissipation copper sheet: In this specification, it is a copper component used to conduct the heat generated by the CMOS image sensor during operation to the housing assembly, and maintains the stable operation of the sensor by increasing the heat dissipation area and heat conduction efficiency.

[0065] Filter: In this specification, it is installed at the front end of the front housing and is used to filter unnecessary wavelength light, thereby improving the quality and clarity of the image.

[0066] Front-end gasket: In this specification, it is installed at the front end of the filter to protect the filter from mechanical damage and help maintain the sealing of the front end of the handle.

[0067] Rubber button: In this specification, it is a control device installed on the top of the front housing, usually made of high-density silicone rubber, and is used to switch different working modes of the CMOS component.

[0068] Button fixing part: In this specification, it refers to the part used to fix the rubber button on the top of the front housing to ensure the button remains stable during operation.

[0069] Sealing ring: In this specification, it is an O-ring installed at the connection part of the front housing and the rear housing, used to ensure the sealing of the handle structure and prevent the infiltration of liquid and gas.

[0070] Flexible printed circuit: In this specification, it refers to a flexible circuit board used to connect the CMOS image sensor to the external circuit, with high flexibility and durability.

[0071] Snap structure: In this specification, it refers to a connection structure usually used to quickly and stably connect the front housing and the rear housing, facilitating disassembly and maintenance.

[0072] Optical-grade filter: In this specification, it refers to a high-precision filter used to selectively filter light within a specific wavelength range to improve the imaging quality of the optical system.

[0073] Anti-slip texture: In this specification, it refers to the texture design on the surface of the housing assembly that is specially treated to increase friction, aiming to improve the holding stability of the user during the surgical operation.

[0074] Connection port: In this specification, it refers to the interface set on the housing assembly for connecting external devices such as fiber optic light guides or transmission cables.

[0075] Anti-reflection coating: Coated on the image acquisition end of the CMOS image sensor in this specification, used to reduce the impact of light reflection in the surgical environment on the imaging quality.

[0076] To make the purpose, technical solutions, and advantages of this application clearer, the following will further describe the implementation manners of this application in detail in conjunction with the accompanying drawings.

[0077] First Embodiment

[0078] See Figures 1 to 5 , the laparoscopic camera handle structure of this embodiment includes:

[0079] The housing assembly 1, made of medical aluminum alloy material, reduces weight and ensures structural strength. The housing assembly 1 includes:

[0080] The front housing 1-1, adopting an ergonomic streamline curved surface design, with concave shapes on both sides to adapt to the user's hand shape and holding habit, and a sealing ring groove at the tail end;

[0081] The rear housing 1-2, hermetically connected to the tail end of the front housing 1-1 through a sealing ring;

[0082] The CMOS assembly 2, with the weight concentrated at the front end of the handle structure to provide better grasping feeling and operation accuracy, is fixed inside the front housing 1-1. The CMOS assembly 2 includes:

[0083] The CMOS image sensor 2-1, fixedly connected to the inner cavity of the front housing 1-1 through positioning posts and screws, and the image acquisition end is located at the square window at the front end of the front housing 1-1;

[0084] The L-shaped bracket 2-2, used to fix the CMOS image sensor 2-1;

[0085] The heat dissipation copper sheet 2-3, used to conduct the heat generated by the CMOS image sensor 2-1 to the housing assembly 1 for heat dissipation;

[0086] The filter assembly, arranged at the square window at the front end of the front housing 1-1, includes:

[0087] The filter 1-8, fixed by medical glue, used to filter out unnecessary optical signals;

[0088] The front gasket 1-9, with a square small window in the center adapted to the square window, is fixed at the front end of the filter 1-8 to protect the filter 1-8 and enhance the sealing performance;

[0089] The control assembly, arranged on the top of the front housing 1-1, includes:

[0090] The rubber buttons 1-5 are snapped into the slots at the top of the front housing 1-1 and are used to switch different operating modes of the CMOS component 2;

[0091] The button fixing piece 1-4 is used to fix the rubber button 1-5 to the top of the front housing 1-1;

[0092] Wherein, the front end, top end and rear end of the housing assembly 1 are all designed with a sealing structure to ensure the overall sealing of the handle structure and meet the strict cleaning and disinfection requirements of medical devices.

[0093] Optionally, the two sides of the front housing 1-1 are concave in an arc-shaped groove, and the curvature radius is designed to match the curvature of the average adult's palm.

[0094] Optionally, the medical aluminum alloy material is 6061 aluminum alloy.

[0095] Optionally, a front-end gasket 1-9 is provided at the front end of the front housing 1-1. The front-end gasket 1-9 is a circular thin sheet structure, and a square small window corresponding to the square window is provided in the center. The front-end gasket 1-9 is made of silicone material or medical-grade stainless steel material to provide buffer protection and additional mechanical strength.

[0096] Optionally, there are three holes on the right side of the CMOS image sensor 2-1, including a threaded hole in the middle for fixing and two positioning holes above and below for positioning; two positioning posts are provided at the front end of the inner cavity of the front housing 1-1 and are matched with the two positioning holes on the right side of the CMOS image sensor 2-1.

[0097] Optionally, the rubber button 1-5 is made of high-density silicone rubber material, and digital marks are provided on its surface to indicate different operating modes of the CMOS component 2, so as to improve the durability and response speed of the button.

[0098] Optionally, the laparoscopic camera handle structure of this embodiment further includes a rear housing inner liner 1-3. The rear housing inner liner 1-3 is fixed to the front housing 1-1 by screws and forms a sealing structure together with the rear housing 1-2.

[0099] Optionally, the laparoscopic camera handle structure of this embodiment further includes a tail fixing piece 1-6 and a wire-bundling rubber 1-10. The tail fixing piece 1-6 is fixed to the rear housing inner liner 1-3 by screws, and the wire-bundling rubber 1-10 is fixed to the tail fixing piece 1-6 by a rubber coating process and is used to connect with an external power supply wire harness and form a second layer of sealing.

[0100] Optionally, the filter 1-8 is an optical-grade filter that can effectively filter light of specific wavelengths to improve image quality; the filter 1-8 is detachably connected to the square window of the front housing 1-1 to facilitate cleaning and replacement of the filter.

[0101] Optionally, the heat dissipation copper sheet 2-3 is made of pure copper material with a high thermal conductivity coefficient and has a plurality of heat dissipation fins to increase the heat dissipation surface area and improve the heat dissipation efficiency.

[0102] Optionally, the surface of the housing assembly 1 is treated with anti-slip texture or coated with an anti-slip coating to enhance the holding stability.

[0103] Optionally, the front housing 1-1 and the rear housing 1-2 are detachably connected by a snap structure and fixed by a set of screws to enhance the structural stability of the handle.

[0104] Optionally, an O-ring seal is provided in the seal ring groove to enhance the sealing performance between the front housing 1-1 and the rear housing 1-2.

[0105] Optionally, the CMOS assembly 2 further includes a flexible printed circuit 2-4 for connecting the CMOS image sensor 2-1 to an external circuit.

[0106] Optionally, the L-shaped bracket 2-2 is made of a metal material to enhance the support strength and heat dissipation performance.

[0107] Optionally, the control assembly further includes a waterproof seal ring 1-6 provided between the rubber button 1-5 and the front housing 1-1 to prevent liquid from seeping in.

[0108] Optionally, the housing assembly 1 is provided with a connection port for connecting a laparoscopic fiber optic light guide beam.

[0109] Optionally, the tail end of the housing assembly 1 is provided with a connection port for connecting a transmission cable.

[0110] Optionally, an anti-reflection coating is provided on the image acquisition end of the CMOS image sensor 2-1 to reduce the interference of light reflection in the surgical environment.

[0111] Working principle:

[0112] When the laparoscopic camera handle of this embodiment is in use, the surgeon holds the rear housing 1-2 of the handle, places the fingers in the arc-shaped groove of the front housing 1-1, and the thumb can operate the control button 1-5 at the top. The CMOS image sensor 2-1 at the front end of the handle captures the surgical field image through the lens and transmits the image signal to the host for processing and display.

[0113] The heat dissipation copper sheet 2-3 and the L-shaped bracket 2-2 jointly fix the CMOS image sensor 2-1. At the same time, the heat dissipation copper sheet 2-3 helps to conduct and dissipate the heat generated during the operation of the CMOS, ensuring stable image acquisition performance. The control button 1-5 can switch different working modes of the image sensor to realize the adjustment of image acquisition.

[0114] The filter 1-8 located at the very front end of the handle can filter out the stray light in the surgical light source and optimize the image quality. The sealing ring between the front and rear shells 1-1, 1-2, the waterproof sealing ring 1-7 around the control button 1-5, and the sealing structure at the tail jointly ensure the waterproof performance of the handle and prevent liquid from seeping in and damaging the internal circuit.

[0115] The overall handle is designed in a streamlined shape with the center of gravity located at the front end, which is convenient for surgeons to hold and operate with a single hand.

[0116] Both the CMOS image sensor 2-1 and the filter 1-8 adopt a modular detachable design, which is convenient for cleaning, maintenance and replacement, and extends the service life of the handle.

[0117] In summary, through reasonable appearance design, weight distribution, heat dissipation structure, sealing device, and optical and modular design, the laparoscopic camera handle structure of this application improves the quality of the surgical field of view and the operation accuracy, optimizes the use comfort and equipment reliability, and better meets the actual needs of laparoscopic surgery.

[0118] The advantages of the above embodiments are as follows:

[0119] 1. The combination of ergonomic design and optimized weight distribution

[0120] Optionally, in the above embodiments, by combining the streamlined curved surface design with the holding feeling of the arc-shaped concave shape, and fixing the CMOS component at the front end of the handle, the handle is not only more comfortable to hold, but also can maintain a stable center of gravity and a good grip feeling during operation. This combined design can effectively reduce the fatigue of surgeons and significantly improve the accuracy and stability of surgical operations.

[0121] 2. The combination of material selection and heat dissipation design

[0122] Optionally, in the handle design of the above embodiments, medical aluminum alloy material is selected to reduce the total weight of the handle. At the same time, through a reasonably designed heat dissipation copper sheet, it is combined with the high thermal conductivity shell material to ensure that the handle maintains a stable temperature during long-term use. This combined design of material and function not only reduces the weight of the equipment, but also effectively solves the problem of possible performance degradation caused by overheating of the equipment during the operation.

[0123] 3. The combination of multiple sealing structures and filter design

[0124] Optionally, the above embodiments also improve the sealing performance of the handle structure by setting a multi-sealing structure, including the sealed connection of the front and rear housings and the sealing design of the rubber buttons, enabling it to meet the strict cleaning and disinfection requirements of medical devices. In addition, the filter assembly is designed to be detachable, which not only ensures the convenience of cleaning and maintenance but also maintains the sealing performance and anti-pollution ability of the handle. This combined design is particularly suitable for surgical environments with high hygiene requirements and helps improve the safety and reliability of the device.

[0125] 4. Combination of Overall Operability and Maintenance Convenience

[0126] Optionally, through the comprehensive design of ergonomic design, material selection, weight distribution, heat dissipation, and sealing structure, the laparoscopic camera handle structure of the above embodiments not only provides comfort and precision during surgical operations but also significantly improves the maintenance convenience and service life of the device. This comprehensive design not only solves multiple operation problems but also reduces the maintenance cost of the device, further enhancing the creativity of the invention.

[0127] To better understand the technical solution of the present application, a specific example is described below. The details listed in this example are mainly for easy understanding and do not limit the protection scope of the present application.

[0128] This example proposes a laparoscopic camera handle structure, with the front end connected to a rigid endoscope (not shown) of the laparoscopic system and the rear end connected to a power supply harness (not shown) of the laparoscopic system. As Figure 2 shown, the components of this example include a housing assembly 1 and a CMOS assembly 2, and the CMOS assembly 2 is fixed inside the housing assembly 1.

[0129] As Figure 3As shown in the figure, the components of this example are subdivided into a front housing 1-1, a rear housing 1-2, an inner liner 1-3 at the rear of the housing, a button fixing part 1-4, a rubber button 1-5, a tail fixing part 1-6, a tail nut buckle 1-7, a filter 1-8, a front end gasket 1-9, and a wire bundling rubber 1-10. CMOS 2-1, an L-shaped bracket 2-2, and a heat dissipation copper sheet 2-3. The structural appearance of the housing assembly 1 conforms to ergonomics and is composed of a front housing 1-1 and a rear housing 1-2. The front end face is flat, and the rest of the cross-section adopts a curved surface shape. The overall performance is streamlined, and the tail end swings slightly downward. Concave shapes are designed on both sides of the front housing 1-1. The overall shape is designed considering the hand shape and holding habits of adult doctors to ensure that the handle can fit naturally with the doctor's palm and reduce unnecessary muscle tension. The materials of the front housing 1-1 and the rear housing 1-2 are made of medical aluminum alloy 6061, which ensures the structural strength while reducing the weight. In addition, the CMOS component 2 is fixed inside the front housing 1-1, and the weight of the entire handle structure is concentrated at the front end. In this way, when the doctor holds it, by clamping the concave parts on both sides of the front housing 1-1 with two fingers, better force application can be achieved, providing sufficient grip and anti-slip properties. At the same time, the rubber button 1-5 is on the top of the front housing 1-1, so that when the palm holds the handle tightly, the thumb can easily press the button on the rubber button 1-5, which reduces the fatigue of the palm and wrist during long-term use and improves the operation accuracy.

[0130] As Figure 4As shown in the figure, a button fixing part 1-4 and a rubber button 1-5 are fixed on the top of the front housing 1-1. The rubber button 1-5 is made of high-density silicone rubber. The bottom of the button is stuck in the top groove of the front housing 1-1, sealing the top of the handle. The button fixing part 1-4 is fixed on the top of the front housing 1-1 by screws, and at the same time fixes the rubber button 1-5. The numbers on the rubber button 1-5 represent different working modes of the CMOS 2-1. The rear inner housing 1-3 of the housing is fixed to the front housing 1-1 by screws. There is a sealing ring groove on the end cross-section of the front housing 1-1 for placing the sealing ring. The front cross-section of the rear inner housing 1-3 of the housing is slightly smaller than the end cross-section of the front housing 1-1, and then it is fixed to the end of the front housing 1-1 by screws, covering the sealing ring groove on the end cross-section of the front housing 1-1 at the same time, sealing the rear end of the entire handle cavity. The rear end of the rear inner housing 1-3 is fixed to the tail fixing part 1-6 by screws. The tail fixing part 1-6 and the wire-bundling rubber 1-10 are fixed by the overmolding process. The wire-bundling rubber 1-10 and the power supply wire harness (not shown) are fixed by the overmolding process, sealing the second layer of the handle tail. A small square window is opened at the front end of the front housing 1-1 for the optical signal received by the CMOS 2-1. A filter 1-8 is placed on the plane of the small window, and its function is to filter the optical signal received by the CMOS 2-1. The filter 1-8 is glued to the plane of the small window at the front end of the front housing 1-1 by medical glue. There is a front gasket 1-9 in front of the filter 1-8. The front gasket 1-9 is a circular thin sheet with a square small window in the center, for the optical signal received by the CMOS 2-1, and is glued to the front plane of the filter 1-8 by medical glue to protect the fragile filter 1-8. Both the filter 1-8 and the front gasket 1-9 are fixed to the front end of the front housing 1-1 by medical glue, ensuring the sealing of the front end of the handle. Therefore, the front end - top - rear end of the handle are all sealed, and it can adapt to strict medical device cleaning.

[0131] As Figure 3 shown, the CMOS component 2 is composed of a CMOS 2-1, an L-shaped bracket 2-2, and a heat dissipation copper sheet 2-3. The CMOS 2-1 is an image sensor that processes the image signals in the patient's abdominal cavity collected at the front end of the laparoscope. The L-shaped bracket 2-2 is used to fix two circuit boards on the left side of the CMOS 2-1 itself. The heat dissipation copper sheet 2-3 transfers the heat generated during the operation of the CMOS 2-1 to the handle housing for heat dissipation. As Figure 5As shown, there are three holes on the right side of CMOS2-1 itself. The middle one is a threaded hole for fixation, and the upper and lower ones are positioning holes for positioning. When fixing CMOS2-1 to the front housing 1-1, first fix the two positioning posts at the front end of the inner cavity of the front housing 1-1 to the two positioning holes on the right side of CMOS2-1 itself to ensure that the image sensor of CMOS 2-1 is located at the center of the circular hole at the front end of the front housing 1-1, and then fix the front housing 1-1 to CMOS2-1 with screws. In this way, the CMOS component 2 for receiving optical signals is directly fixed to the front housing 1-1 of the housing component 1, simplifying the mechanical structure, maintaining the necessary operation sensitivity and precise control, and being able to meet the requirements of complex laparoscopic surgeries.

[0132] It should be noted that all the documents mentioned in this application are incorporated herein by reference as if each document was individually incorporated by reference. In addition, it should be understood that after reading the above teachings of this application, those skilled in the art can make various changes or modifications to this application, and these equivalent forms also fall within the scope defined by the appended claims of this application.

[0133] Moreover, in the claims and the specification of this patent, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Also, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one" does not exclude the existence of additional identical elements in the process, method, article or device including the said element. In the claims and the specification of this patent, if it is mentioned that an act is performed according to a certain element, it means performing the act at least according to that element, including two cases: performing the act only according to that element and performing the act according to that element and other elements.

[0134] Although this application has been illustrated and described by referring to some preferred embodiments of this application, those of ordinary skill in the art should understand that various changes can be made in form and detail without departing from the spirit and scope of this application.

Claims

1. A laparoscopic camera handle structure, characterized in that, Comprising: A housing assembly (1), the housing assembly (1) comprising: a front housing (1-1) having a sealing ring groove at its tail end; a rear housing (1-2) hermetically connected to the tail end of the front housing (1-1) through a sealing ring. A CMOS assembly (2) fixed inside the front housing (1-1), the CMOS assembly (2) comprising: a CMOS image sensor (2-1) fixedly connected to the inner cavity of the front housing (1-1), with the image acquisition end located at the square window at the front end of the front housing (1-1); an L-shaped bracket (2-2) for fixing the CMOS image sensor (2-1); a heat dissipation copper sheet (2-3). A filter assembly provided at the square window at the front end of the front housing (1-1), comprising: a filter (1-8) for filtering unnecessary optical signals; a front-end gasket (1-9) having a square small window at its center that matches the square window, fixed to the front end of the filter (1-8) to protect the filter (1-8) and enhance the sealing performance.

2. The laparoscopic camera handle structure according to claim 1, wherein The housing assembly (1) is made of medical aluminum alloy material, and the housing assembly (1) adopts a streamline curved surface design that conforms to ergonomics, with concave shapes on both sides. Among them, the concave shapes on both sides of the front housing (1-1) are arc-shaped grooves, and the designed curvature radius is adapted to the palm arc of an average adult to adapt to the user's hand shape and holding habit. The weight of the CMOS assembly (2) is concentrated at the front end of the handle structure to provide a better gripping feeling and operation accuracy; the heat dissipation copper sheet (2-3) is used to conduct the heat generated by the CMOS image sensor (2-1) to the housing assembly (1) for heat dissipation. And, the laparoscopic camera handle structure further comprises: A control assembly provided at the top of the front housing (1-1), comprising: a rubber button (1-5) snapped into the groove at the top of the front housing (1-1) for switching different working modes of the CMOS assembly (2); a button fixing member (1-4) for fixing the rubber button (1-5) to the top of the front housing (1-1). Among them, the front end, top end, and rear end of the housing assembly (1) all adopt a sealed structure design to ensure the overall sealing performance of the handle structure and meet the strict cleaning and disinfection requirements of medical devices.

3. The laparoscopic camera handle structure according to claim 2, characterized in that, The medical aluminum alloy material is 6061 aluminum alloy.

4. The laparoscopic camera handle structure according to claim 1, wherein, The front end of the front housing (1-1) is provided with a front-end gasket (1-9), the front-end gasket (1-9) is a circular thin sheet structure, and a square small window corresponding to the square window is opened at its center. The front-end gasket (1-9) is made of silicone material or medical-grade stainless steel material to provide buffer protection and additional mechanical strength.

5. The laparoscopic camera handle structure according to claim 1, characterized in that, On the right side of the CMOS image sensor (2-1), there are three holes, including a threaded hole in the middle for fixation and two positioning holes above and below for positioning; at the front end of the inner cavity of the front outer shell (1-1), there are two positioning posts, which are matched with the two positioning holes on the right side of the CMOS image sensor (2-1).

6. The laparoscopic camera handle structure according to claim 2, characterized in that, The rubber button (1-5) is made of high-density silicone rubber material, and its surface is provided with digital marks for indicating different working modes of the CMOS component (2), so as to improve the durability and response speed of the button.

7. The laparoscopic camera handle structure according to claim 1, characterized in that, It further includes an inner liner of the rear outer shell (1-3), and the inner liner of the rear outer shell (1-3) is fixed to the front outer shell (1-1) by screws and jointly forms a sealed structure with the rear outer shell (1-2).

8. The laparoscopic camera handle structure according to claim 7, characterized in that, It further includes a tail fixing part (1-6) and a wire-bundling rubber (1-10). The tail fixing part (1-6) is fixed to the inner liner of the rear outer shell (1-3) by screws, and the wire-bundling rubber (1-10) is fixed to the tail fixing part (1-6) by a rubber coating process for connecting with an external power supply wire harness and forming a second layer of seal.

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