CN117796755A

CN117796755A - Wireless laparoscopic system and method performed thereby and wireless laparoscopic

Info

Publication number: CN117796755A
Application number: CN202410232030.9A
Authority: CN
Inventors: 郭庆良; 李耀; 史文勇
Original assignee: Kochi Medical Technology Beijing Co ltd
Current assignee: Kochi Medical Technology Beijing Co ltd
Priority date: 2024-03-01
Filing date: 2024-03-01
Publication date: 2024-04-02

Abstract

The application provides a wireless laparoscopic system and methods performed thereby, as well as a wireless laparoscope. According to one embodiment, a wireless laparoscopic system includes a wireless laparoscope and a cloud server. The wireless laparoscope comprises an optical component for imaging, a camera for acquiring an image formed by the optical component and outputting a first video signal, a conversion module configured to convert the first video signal into a second video signal suitable for being transmitted in a wireless manner, and a wireless transmission module configured to transmit the second video signal to a cloud server in a wireless manner. The cloud server is configured to receive a second video signal transmitted by the wireless laparoscope, image process the second video signal, and transmit the processed second video signal to one or more video receiving devices.

Description

Wireless laparoscopic system and method performed thereby and wireless laparoscopic

Technical Field

The present disclosure relates to the field of medical devices, and more particularly to a wireless laparoscopic system and methods performed thereby, and a wireless laparoscope.

Background

Laparoscopy is a medical instrument used for abdominal exploration and minimally invasive surgery. Laparoscopes typically include an optical system, illumination fibers, and a camera. The optical system generally includes an objective lens for imaging, a rod lens for image transfer, and an eyepiece lens for observation. The illumination fiber is used for illuminating the visual field range of the optical system. The camera is used for collecting images formed by the ocular and outputting corresponding video signals. In a laparoscopic application scenario. For video real-time, signal quality, etc., a cable video mode is generally used. That is, the camera is connected to the video converter and the monitor through a cable so that a corresponding video can be observed on the monitor.

Disclosure of Invention

This section is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This section is not intended to identify essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.

It is an object of the present disclosure to provide an improved wireless laparoscopic system and methods performed thereby and a wireless laparoscope. Particularly, one of the technical problems to be solved by the present disclosure is that the existing laparoscope needs to perform complicated cable connection, which not only occupies a larger operation space and is inconvenient to carry, thereby being unfavorable for the scene of an outgoing operation, but also may cause cable winding and misoperation caused by cable miscollision. Another technical problem to be solved by the present disclosure is that the existing laparoscope can only output the collected video to a monitor for observation, and the variety of devices for receiving the video signal is limited. Yet another technical problem addressed by the present disclosure is that the optical system of the existing laparoscope is complex in construction, large in volume and weight, and inconvenient to carry. Yet another technical problem to be solved by the present disclosure is that the existing laparoscope has a high requirement for illumination intensity, resulting in high power consumption of the illumination source, which is not beneficial to battery endurance.

According to a first aspect of the present disclosure, a wireless laparoscopic system is provided. The wireless laparoscopic system comprises a wireless laparoscope and a cloud server. The wireless laparoscope comprises an optical component for imaging, a camera for acquiring an image formed by the optical component and outputting a first video signal, a conversion module configured to convert the first video signal into a second video signal suitable for being transmitted in a wireless manner, and a wireless transmission module configured to transmit the second video signal to the cloud server in a wireless manner. The cloud server is configured to receive the second video signal transmitted by the wireless laparoscope, image process the second video signal, and transmit the processed second video signal to one or more video receiving devices.

According to the first aspect, the wireless transmission mode is adopted, so that complicated cable connection is not needed, the installation and operation flow are simplified, the portability of the operation of a doctor is improved, the occupation of the operation space is saved, the carrying is convenient, the situation of going out the operation is more convenient, and the cable winding and misoperation caused by the cable collision can be avoided. In addition, the video signals are wirelessly transmitted to the cloud server and then transmitted to the video receiving equipment by the cloud server, so that on one hand, the types of equipment for receiving the video signals can be flexible and diversified, a plurality of equipment can simultaneously watch real-time pictures, operation teaching and alternating current learning are convenient, and on the other hand, the cloud server can be utilized to uniformly process the video images without processing the video images at the positions of the laparoscopes, so that the configuration cost is saved.

In one embodiment of the present disclosure, the optical component is an objective lens and the camera is disposed adjacent to the objective lens. According to the embodiment, since the camera is arranged adjacent to the objective lens, the laparoscope is an electronic laparoscope, compared with the existing optical laparoscope with a rear camera, the laparoscope has the advantages of smaller volume, lighter weight and more convenience in carrying, and the photographic effect of the camera is better than that of the optical laparoscope, the requirements on illumination intensity are lower, the reduction of the power consumption of an illumination light source is facilitated, and the duration is longer.

In one embodiment of the present disclosure, the first video signal follows a serial interface protocol for a camera of a mobile device and the second video signal follows a transistor-transistor logic (TTL) standard. The conversion module includes: a first conversion sub-module configured to convert the first video signal into an intermediate video signal that complies with a serial interface protocol for a flat panel display; and a second conversion sub-module configured to convert the intermediate video signal into the second video signal.

In One embodiment of the present disclosure, the serial interface protocol for a camera of a mobile device is a Mobile Industry Processor Interface (MIPI) Camera Serial Interface (CSI) protocol, and the serial interface protocol for a flat panel display is a V-by-One protocol.

In one embodiment of the disclosure, the wireless transmission module is communicatively connected with the cloud server via a wireless routing device.

In one embodiment of the present disclosure, the wireless transmission module is a cellular communication module communicatively connected with the cloud server via a base station.

In one embodiment of the present disclosure, the wireless laparoscope further comprises: a Light Emitting Diode (LED) illumination component disposed about the objective lens, and an illumination control circuit configured to control light emission of the LED illumination component. According to this embodiment, since the illumination members are distributed discretely, a better heat radiation effect can be obtained.

In one embodiment of the present disclosure, the LED lighting component comprises a plurality of cold light LEDs. According to the embodiment, since the cold light LED is adopted, the power consumption and the heating value of the illumination light source can be further reduced, the continuous illumination capability is improved, and the duration time is longer.

In one embodiment of the present disclosure, the wireless laparoscope further comprises a lens barrel and a handle. The objective lens, the camera, and the first circuit board are disposed in the lens barrel. The lighting control circuit and the first conversion sub-module are located on the first circuit board. A second circuit board is disposed in the handle. The second conversion sub-module and the wireless transmission module are located on the second circuit board. A flexible flat cable for transmitting the intermediate video signal is connected between the first circuit board and the second circuit board. According to this embodiment, since the circuits are arranged in a distributed manner, the heat dissipation effect can be improved while more space can be made available to configure the battery for powering the wireless laparoscope for a longer duration.

In one embodiment of the present disclosure, the wireless laparoscope further comprises: and an image preprocessing module configured to perform image preprocessing on the second video signal.

In one embodiment of the present disclosure, a battery for powering the wireless laparoscope is removably mounted in the handle.

According to a second aspect of the present disclosure, a wireless laparoscope is provided. The wireless laparoscope comprises: an optical component for imaging; the camera is used for collecting the image formed by the optical component and outputting a first video signal; a conversion module configured to convert the first video signal into a second video signal suitable for transmission by wireless means; and a wireless transmission module configured to transmit the second video signal to the outside by wireless.

According to the second aspect, the wireless transmission mode is adopted, so that complicated cable connection is not needed, the installation and operation flow are simplified, the portability of the operation of a doctor is improved, the occupation of the operation space is saved, the carrying is convenient, the situation of going out the operation is more convenient, and cable winding and misoperation caused by cable miscollision can be avoided.

In one embodiment of the disclosure, the wireless transmission module is communicatively connected with a cloud server via a wireless routing device.

In one embodiment of the present disclosure, the wireless transmission module is a cellular communication module communicatively connected with a cloud server via a base station.

In one embodiment of the present disclosure, the wireless transmission module transmits the second video signal to a wireless routing device, such that the wireless routing device is capable of transmitting the second video signal to one or more video receiving devices.

According to a third aspect of the present disclosure, a method performed by a wireless laparoscopic system is provided. The method comprises the following steps: and acquiring an image formed by the optical component of the wireless laparoscope by a camera of the wireless laparoscope and outputting a first video signal. The method further comprises the steps of: the first video signal is converted by the wireless laparoscopic conversion module into a second video signal suitable for wireless transmission. The method further comprises the steps of: and the wireless sending module of the wireless laparoscope sends the second video signal to a cloud server in a wireless mode. The method further comprises the steps of: the second video signal transmitted by the wireless laparoscope is received by the cloud server, image-processed, and the processed second video signal is transmitted to one or more video receiving devices.

According to the third aspect, the wireless transmission mode is adopted, so that complicated cable connection is not needed, the installation and operation flow are simplified, the portability of the operation of a doctor is improved, the occupation of the operation space is saved, the carrying is convenient, the situation of going out the operation is more convenient, and cable winding and misoperation caused by cable miscollision can be avoided. In addition, the video signals are wirelessly transmitted to the cloud server and then transmitted to the video receiving equipment by the cloud server, so that on one hand, the types of equipment for receiving the video signals can be flexible and diversified, a plurality of equipment can simultaneously watch real-time pictures, operation teaching and alternating current learning are convenient, and on the other hand, the cloud server can be utilized to uniformly process the video images without processing the video images at the positions of the laparoscopes, so that the configuration cost is saved.

According to a fourth aspect of the present disclosure, a method performed by a wireless laparoscope is provided. The method comprises the following steps: and acquiring an image formed by the optical component of the wireless laparoscope by a camera of the wireless laparoscope and outputting a first video signal. The method further comprises the steps of: the first video signal is converted by the wireless laparoscopic conversion module into a second video signal suitable for wireless transmission. The method further comprises the steps of: and the wireless sending module of the wireless laparoscope sends the second video signal to the outside in a wireless mode.

According to a fifth aspect of the present disclosure, a wireless laparoscope is provided. The wireless laparoscope comprises: the integrated fixing seat, the camera, the conversion module and the wireless transmission module. The integrated fixing seat is provided with a columnar structure. The front end of the columnar structure is an inclined plane which forms a preset acute angle with the vertical plane. An inwardly recessed cavity is provided in a central portion of a rear end of the columnar structure for mounting an objective lens for imaging. A window is installed at a central portion of the front end of the columnar structure. A plurality of LEDs are mounted at a peripheral portion of the front end of the columnar structure. A prism is installed between the louver and the cavity for allowing light introduced through the louver to enter the objective lens in a direction parallel to an axial direction of the objective lens. The camera is used for collecting images formed by the objective lens and outputting a first video signal. The camera is arranged adjacent to the objective lens. The conversion module is configured to convert the first video signal into a second video signal suitable for transmission over the air. The wireless transmission module is configured to wirelessly transmit the second video signal to the outside.

According to the fifth aspect, since the wireless transmission mode is adopted, complicated cable connection is not needed, the installation and operation flow are simplified, the portability of the operation of a doctor is improved, the occupation of the operation space is saved, the carrying is convenient, the situation of going out the operation is more convenient, and the cable winding and the misoperation caused by the cable collision can be avoided. Because the camera is adjacent to the objective lens, the laparoscope is an electronic laparoscope, and compared with the existing optical laparoscope with the rear camera, the laparoscope has the advantages of smaller volume, lighter weight and more convenient carrying, and the sensitization effect of the camera is better than that of the optical laparoscope, the requirement on illumination intensity is lower, and the laparoscope is more beneficial to reducing the power consumption of an illumination light source and longer endurance time. Since the front end of the integral fixing base is an inclined plane forming a predetermined acute angle with the vertical plane, a top view can be obtained without lifting the handle of the laparoscope to the vertical direction when using the laparoscope, or a more accurate view angle for operating forceps, a scalpel, or the like can be more easily obtained by adapting to the operation angle of the operator without generating interference of spatial positions, and thus the operator can be more relaxed when using the laparoscope compared with a 90-degree laparoscope. Due to the adoption of the integral fixing seat, compared with some existing laparoscopes with corresponding parts assembled together, the precision problem generated between the structures can be reduced, and thus the phenomenon of gaps or light leakage is avoided.

In one embodiment of the present disclosure, the predetermined acute angle is a 30 degree angle.

In one embodiment of the present disclosure, the window pane is mounted to the integral mount by laser welding.

In one embodiment of the present disclosure, the plurality of LEDs, the prism, and the objective lens are mounted to the integral mount by a sealant.

In one embodiment of the present disclosure, the first video signal follows a serial interface protocol for a camera of a mobile device and the second video signal follows the TTL standard. The conversion module includes: a first conversion sub-module configured to convert the first video signal into an intermediate video signal that complies with a serial interface protocol for a flat panel display; and a second conversion sub-module configured to convert the intermediate video signal into the second video signal.

In One embodiment of the present disclosure, the serial interface protocol for the camera of the mobile device is the MIPICII protocol, and the serial interface protocol for the flat panel display is the V-by-One protocol.

In one embodiment of the disclosure, the wireless laparoscope includes a lens barrel coupled to the integral holder. The camera and the first circuit board are mounted in the lens barrel. The first conversion sub-module is located on the first circuit board.

In one embodiment of the disclosure, the lens barrel is connected to the integral mount by laser welding.

In one embodiment of the present disclosure, the camera is fixed in the lens barrel by a jig. The clamp is connected with the integrated fixing seat through sealant. The first circuit board is fixed in the clamp through sealant.

In one embodiment of the present disclosure, a first flexible flat cable is connected between the camera and the first circuit board for transmitting the first video signal.

In one embodiment of the present disclosure, the wireless laparoscope includes a handle coupled to the lens barrel. A second circuit board is mounted in the handle. The second conversion sub-module and the wireless transmission module are located on the second circuit board.

In one embodiment of the present disclosure, the upper end of the handle is planar and provided with a plurality of keys for operating the wireless laparoscope. The lower end of the handle is a cambered surface.

In one embodiment of the present disclosure, a second flexible flat cable for transmitting the intermediate video signal is connected between the first circuit board and the second circuit board.

Drawings

In order to more clearly illustrate the technical solutions of the present disclosure, the following description will briefly explain the drawings of the embodiments. Clearly, the structural schematic drawings in the following figures are not necessarily drawn to scale, but rather present features in simplified form. Moreover, the following drawings are only illustrative of some embodiments of the present disclosure and are not intended to limit the present disclosure.

FIG. 1 is a block diagram illustrating a wireless laparoscopic system according to an embodiment of the present disclosure;

FIG. 2 is a block diagram illustrating one exemplary implementation of a wireless laparoscope included in the wireless laparoscopic system of FIG. 1;

fig. 3A and 3B are structural views illustrating an exemplary implementation of a lens barrel of the wireless laparoscope of fig. 2;

FIG. 4 is a circuit diagram illustrating one exemplary implementation of the lighting control circuit of the wireless laparoscope of FIG. 2;

fig. 5A to 5C are schematic views showing a connection manner between a wireless laparoscope and a video receiving apparatus according to an embodiment of the present disclosure;

Fig. 6 is a view showing an exemplary appearance of the wireless laparoscope of fig. 2;

FIG. 7 is a cross-sectional view illustrating another exemplary configuration of the wireless laparoscope of FIG. 2;

fig. 8A to 8C are sectional views showing a specific configuration of the wireless laparoscope of fig. 7; and

fig. 9 is a flowchart illustrating a method performed by a wireless laparoscopic system according to an embodiment of the present disclosure.

Detailed Description

For purposes of explanation, certain details are set forth in the following description in order to provide a thorough understanding of the disclosed embodiments. It is apparent, however, to one skilled in the art that the embodiments may be practiced without these specific details or with an equivalent arrangement.

As described above, in the conventional laparoscopic application scenario, a wired video mode is generally adopted for the reasons of video real-time performance, signal quality, and the like. That is, the camera is connected to the video converter and the monitor through a cable so that a corresponding video can be observed on the monitor.

Therefore, one of the drawbacks of the existing laparoscope is that complicated cable connection is required, which not only occupies a large operation space and is inconvenient to carry, thereby being unfavorable for the scene of the surgery, but also may cause cable winding and misoperation caused by cable miscollision. Another disadvantage of the existing laparoscope is that it can only output the acquired video to a monitor for viewing, and the variety of devices receiving the video signal is limited. A further disadvantage of the existing laparoscope is that the optical system is complex in structure, large in volume and weight, and inconvenient to carry. A further disadvantage of the existing laparoscope is that the requirement for illumination intensity is high, which results in high power consumption of the illumination source and is not beneficial to battery endurance.

The present disclosure provides an improved wireless laparoscopic system and methods performed thereby, as well as a wireless laparoscope. Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

Fig. 1 is a block diagram illustrating a wireless laparoscopic system according to an embodiment of the present disclosure. As shown in fig. 1, the wireless laparoscopic system 10 includes a wireless laparoscope 12 and a cloud server 14. The wireless laparoscope 12 includes an optical component 121 for imaging, a camera 122 for capturing an image formed by the optical component 121 and outputting a first video signal, a conversion module 123 configured to convert the first video signal into a second video signal suitable for wireless transmission, and a wireless transmission module 124 configured to wirelessly transmit the second video signal to the cloud server 14.

As a first option, the optical component 121 may be an objective lens. For this first option, camera 122 is positioned adjacent to the objective lens. Since the camera 122 is disposed adjacent to the objective lens, the laparoscope is an electronic laparoscope. Compared with the existing optical laparoscope with the rear-mounted camera, the optical laparoscope has the advantages that the rod-shaped lens and the ocular lens are omitted, the volume is smaller, the weight is lighter, the optical laparoscope is more convenient to carry, the photosensitive effect of the camera is better than that of the optical laparoscope, the requirement on illumination intensity is lower, and the optical laparoscope is more beneficial to reducing the power consumption of an illumination light source and prolonging the endurance time. However, the present disclosure is not limited to the first option described above. As a second option, the optical component 121 may also be an assembly comprising an objective lens, a rod lens and an eyepiece. For this second option, the camera 122 is disposed adjacent to the eyepiece.

For the first and second options described above, the camera 122 may be a Complementary Metal Oxide Semiconductor (CMOS) sensor or other suitable device capable of converting an optical image into a corresponding electrical signal. For example, the first video signal output by camera 122 may follow a serial interface protocol for a camera of a mobile device. As an illustrative example, the serial interface protocol for a camera of a mobile device is a Mobile Industry Processor Interface (MIPI) Camera Serial Interface (CSI) protocol, such as MIPI CSI protocol second edition (MIPI CSI-2).

The second video signal output by the conversion module 123 may follow, for example, a transistor-transistor logic (TTL) standard or other similar standard. For the first option of electronic laparoscope described above, the conversion module 123 may include a first conversion sub-module and a second conversion sub-module. The first conversion sub-module is configured to convert the first video signal into an intermediate video signal that complies with a serial interface protocol for the flat panel display. As an illustrative example, the serial interface protocol for flat panel displays is the V-by-One protocol (or the V-by-One HS protocol). Accordingly, the first conversion sub-module may be implemented using a chip capable of converting the MIPI CSI video signal into a V-by-One video signal. The second conversion sub-module is configured to convert the intermediate video signal into a second video signal. As an illustrative example, the first conversion sub-module may be implemented using a chip capable of converting a V-by-One video signal into a TTL video signal.

The use of the first and second conversion sub-modules is based mainly on the following considerations. For the first option, the camera 122 is located adjacent to the objective lens, so the camera is located with the objective lens in a barrel, such as a wireless laparoscope. Since the radial dimension of the barrel of a wireless laparoscope is typically smaller than the radial dimension of the handle of the wireless laparoscope, a desirable configuration is to convert the video signal captured by camera 122 in the handle. Since the length of the barrel is typically about 50 cm and the serial interface protocol for the camera of the mobile device (e.g., MIPI CSI) is typically used to interconnect with other components within the mobile device and thus the applicable transmission distance is short, a first video signal following the serial interface protocol for the camera of the mobile device (e.g., MIPI CSI protocol) is not suitable for stable transmission along the length of the barrel to the handle of the wireless laparoscope. Whereas the serial interface protocol (e.g., V-by-One protocol) for flat panel displays is adapted to have a longer signal transmission distance, the first video signal is converted into an intermediate video signal by the first conversion sub-module so that it can be stably transmitted to the handle of the wireless laparoscope along the length of the lens barrel, and then converted in the handle by the second conversion sub-module.

For the second option of optical laparoscope described above, the conversion module 123 may also be similarly implemented to include the first and second conversion sub-modules described above. However, for this second option, since the camera is rear-mounted, the camera is located in a barrel of, for example, a wireless laparoscope. Thus, as an illustrative example, the conversion module 123 may also be implemented using a chip capable of directly converting MIPI CSI video signals into TTL video signals.

As one example, the wireless transmission module 124 may be implemented using various existing or future-developed cellular communication modules (e.g., fourth-generation (4G) wireless communication modules, fifth-generation (5G) wireless communication modules, etc.) capable of wireless transmission of video signals. In this way, as shown in fig. 5A described later, the wireless transmission module 124 (and thus the wireless laparoscope 12) is communicatively connected with the cloud server 14 via the base station 510.

As another example, the wireless transmission module 124 may be implemented using various existing or future-developed wireless local area network communication modules (e.g., wiFi communication modules, WLAN communication modules conforming to the IEEE 802.11 standard, etc.) capable of wireless transmission of video signals, wherein IEEE refers to the institute of electrical and electronics engineers, and WLAN refers to a wireless local area network. In this way, as shown in fig. 5B, which is described later, the wireless transmission module 124 (and thus the wireless laparoscope 12) is communicatively connected with the cloud server 14 via the wireless routing device 520.

The cloud server 14 is configured to receive the second video signal transmitted by the wireless laparoscope 12, image process the second video signal, and transmit the processed second video signal to one or more video receiving devices. Examples of image processing by cloud server 14 include, but are not limited to, image enhancement (e.g., using high pass filtering, etc.), image noise reduction (e.g., using low pass filtering, median filtering, etc.), image defogging (e.g., using bayesian defogging algorithms, dark channel algorithms, etc.), and the like. For example, cloud server 14 may send the processed second video signal in response to a request by one or more video receiving devices. Examples of video receiving devices include, but are not limited to, wireless displays, cell phones, tablet computers, desktops, notebooks, and the like. Cloud server 14 may be implemented using various existing or future developed cloud computing technologies.

With the wireless laparoscopic system 10 shown in fig. 1, since a wireless transmission mode is adopted, complicated cable connection is not required, installation and operation procedures are simplified, portability of operation of a doctor is improved, occupation of operation space is saved, portability is convenient, a scene requiring an outgoing operation is more convenient, and cable winding and misoperation caused by cable miscollision can be avoided. In addition, the video signals are wirelessly transmitted to the cloud server and then transmitted to the video receiving equipment by the cloud server, so that on one hand, the types of equipment for receiving the video signals can be flexible and diversified, a plurality of equipment can simultaneously watch real-time pictures, operation teaching and alternating current learning are convenient, and on the other hand, the cloud server can be utilized to uniformly process the video images without processing the video images at the positions of the laparoscopes, so that the configuration cost is saved.

Fig. 2 is a block diagram illustrating one exemplary implementation of a wireless laparoscope included in the wireless laparoscopic system of fig. 1. As shown in fig. 2, in this exemplary implementation, the optical component is implemented as an objective lens 221. The camera is implemented as a 1/6 inch CMOS sensor 222 that outputs MIPI CSI-2 video signals. The transmission rate of the MIPI CSI-2 video signal is 1 Gbps/channel (lane), the video display format is 1080p, and the frame rate is 60 frames/second.

The conversion module is implemented to include a first conversion sub-module 2231 configured to convert the MIPI CSI-2 video signal into a V-by-One video signal, and a second conversion sub-module 2232 configured to convert the V-by-One video signal into a TTL video signal. The first conversion sub-module 2231 is implemented using a chip THCV241 from THine Electronics, inc. The MIPI signal input to the first conversion sub-module 2231 is three sets of differential pairs, and the V-by-One signal output from the first conversion sub-module 2231 is two sets of differential pairs. Therefore, MIPI signals at the camera in the lens barrel are transmitted to the handle, and only two sets of V-by-one signals and three sets of power supply signals are needed, so that the miniaturization of the lens barrel is facilitated. The second conversion sub-module 2232 is implemented using the chip THCV236 from THine Electronics, inc. The signal output by the second conversion sub-module 2232 is a 24-bit TTL signal at 75MHz. An input/output interface of an MCU as a control module described later may directly read the 24-bit TTL signal and perform processing (e.g., image preprocessing) to reduce further buffering therein.

The wireless transmission module is implemented as wireless transmission module 224 using WiFi communication technology. The wireless transmission module 224 is implemented using a gigabit network compatible RTL8211 portal chip from Realtek corporation, an isolation transformer chip G2406S from the magnet company, and a low power 300M rate internet of things module MT7628NN from Mediatek corporation. The Internet of things module supports 802.11v and 802.11b/g/n modes. The video stream sent out by the portal chip RTL8211 can be sent out to the outside wirelessly via the MT7628 NN.

As shown in fig. 2, the wireless laparoscope may further include a Light Emitting Diode (LED) illumination component disposed around the objective lens 221, and an illumination control circuit 2272 configured to control the light emission of the LED illumination component. In this way, since the illumination members are distributed discretely, a better heat dissipation effect can be obtained. The LED lighting component may include a plurality of cool light LEDs 2271-1 to 2271-N, where N is an integer greater than 1. Thus, the adoption of the cold light LED can further reduce the power consumption and the heating value of the illumination light source, improve the continuous illumination capability and prolong the duration time.

As shown in fig. 2, the wireless laparoscope includes a lens barrel 227 and a handle 228. An objective lens 221, a CMOS sensor 222, and a first circuit board 2274 are provided in the lens barrel 227. The illumination control circuit 2272 and the first converter sub-module 2231 are located on the first circuit board 2274. A second circuit board 2281 is provided in the handle 228. The second conversion sub-module 2232 and the wireless transmission module 224 are located on the second circuit board 2281. A flexible flat cable 2273 for transmitting an intermediate video signal (in this exemplary example, a V-by-One video signal) is connected between the first circuit board 2274 and the second circuit board 2281. Since the circuit board is divided into the first circuit board (may also be called a lens board) and the second circuit board (may also be called a handle board) so as to disperse the circuits, the heat dissipation effect can be improved, and more space can be made to configure a battery for supplying power to the wireless laparoscope and the endurance time is longer.

In addition, the wireless laparoscope may include a control module 2283 for overall control of the functions/operations of the wireless laparoscope. In this exemplary implementation, the control module 2283 is implemented using a Micro Control Unit (MCU). The MCU-implemented functions include, but are not limited to: the output, reset and start of the CMOS sensor are controlled, the wireless transmission, reset and transmission modes of the wireless transmission module are controlled, the enabling of the conversion module is controlled, and the switching and brightness of the LED lighting component are controlled. It should be noted that the control module 2283 may also be implemented using other suitable processors. Examples of processors include, but are not limited to, microprocessors, digital Signal Processors (DSPs), processors based on multi-core processor architecture, and the like. The wireless laparoscope may optionally include an image preprocessing module 225 configured to image pre-process the second video signal (in this illustrative example, the TTL signal). Examples of image preprocessing include, but are not limited to, adjusting parameters such as color, gamma, etc. of the image, white balance calibration of the camera, and automatic exposure. The control module 2283 and the image preprocessing module 225 may be located on the second circuit board 2281. It should be noted that the image preprocessing module 225 may be implemented as part of the control module 2283, that is, the image preprocessing may be performed by the control module 2283.

In addition, a battery 2282 for powering the wireless laparoscope is removably mounted in the handle 228. For example, battery 2282 may be a lithium battery or other suitable battery. Since the exemplary implementation of fig. 2 is an electronic laparoscope, it is greatly optimized in terms of both volume and weight compared to an optical laparoscope, thereby being spatially able to provide more assembly space for battery loading. Under the condition of adopting 5000mAh of detachable lithium battery and being matched with a low-power-consumption cold light LED module for use, the endurance time of more than 4 hours can be realized.

Fig. 3A and 3B are structural views illustrating an exemplary implementation of a lens barrel of the wireless laparoscope of fig. 2. Fig. 3A is a plan view of the internal structure of the lens barrel, and fig. 3B is a view of a unit including the objective lens (hereinafter referred to as an objective lens unit) obtained when viewing the objective lens facing the lens barrel. As shown in fig. 3A, a plurality of cold light LEDs 2271-1 to 2271-N may be arranged on an edge of one end of the housing surrounding the objective lens 221 toward the outside of the lens barrel. The objective lens unit includes, in addition to the objective lens 221, a light shielding housing 2276 (see fig. 3B) and a window 2275 (see fig. 3A and 3B) that house the objective lens 221. In the illustrative example shown in fig. 3A, the field angle (FOV) of the objective lens 221 is 80 degrees. Fig. 3A also shows a CMOS sensor 222 disposed adjacent to the objective lens 221, and a first circuit board 2274 connected to the CMOS sensor 222. In this illustrative example, the first circuit board 2274 is a Printed Circuit Board (PCB). The flex cable 2273 is used to connect the first circuit board 2274 to a second circuit board (not shown in fig. 3A) in the handle. The objective lens unit, CMOS sensor and first circuit board shown in fig. 3A may be positioned using a card slot or other suitable fastening means.

Fig. 4 is a circuit diagram illustrating one exemplary implementation of the lighting control circuit of the wireless laparoscope of fig. 2. In this exemplary implementation, the driver chip for the LED uses AS3647 from AMS company. The VOUT1 and VOUT2 pins of the driver chip correspond to the output capacitors of the dc-to-dc converter, the LED1 and LED2 pins are the current sinks of the LED flash lamp, the SW1 and SW2 pins correspond to the switching mode of the dc-to-dc converter, the VIN pin is the positive supply voltage input, the SDA pin is the serial data input/output for the integrated circuit bus (IIC) interface, the SCL pin is the serial clock input for the IIC interface, the STROBE pin is the data input for controlling flash time, the TXMASK/TORCH pin is related to the operation of the rf power amplifier or the current at the flashlight level, and GND is the power and analog ground.

As shown in fig. 4, one end of the four LEDs (LED 1, LED2, LED3, LED 4) is connected to VOUT1 and VOUT2 pins of the driving chip via a current limiting resistor R15, where VOUT1 and VOUT2 pins are short-circuited. The other end of the current limiting resistor R15 is grounded via a filter capacitor C23. The other ends of the four LEDs (LED 1, LED2, LED3, LED 4) are connected to the LED1 and LED2 pins of the driving chip via respective current limiting resistors R16, R17, R18, R19, respectively, wherein the LED1 and LED2 pins are short-circuited.

As can be seen from fig. 4, the lighting control circuit is a luminescence adjustable module using low voltage (3.3V). The MCU as a control module can control the camera in real time through the IIC, so that the adjustability of the illumination condition of the camera is ensured. The voltage range of the cold light LED is 2.65-3.4635V, and the cold light LED is strong in illumination along with the increase of the voltage. The MCU can control the output voltage of the VOUT1/VOUT2 end of the cold light adjustable module through the IIC, thereby controlling the change of illumination intensity. The illumination range can be extended by increasing the number of LEDs.

Fig. 5A to 5C are schematic views illustrating a connection manner between a wireless laparoscope and a video receiving apparatus according to an embodiment of the present disclosure. As previously described, in the example shown in fig. 5A, the wireless laparoscope 12 is communicatively connected with the cloud server 14 via the base station 510. The base station 510 may be communicatively connected with a cloud server 14 in the internet via a core network, details of which are not shown in fig. 5A for the sake of brevity. As previously described, in the example shown in fig. 5B, the wireless laparoscope 12 is communicatively connected with the cloud server 14 via the wireless routing device 520 (as a relay). The details are not shown in fig. 5B for the sake of brevity, as to the communicable connections between the wireless routing device 520 and the cloud server 14 are well known to those skilled in the art. In the example of fig. 5A and 5B, the video receiving device 530 may access the internet in various ways to, for example, make a request to the cloud server 14 to receive a wireless laparoscopic video signal.

In the example shown in fig. 5C, the wireless laparoscope 12 sends a second video signal suitable for wireless transmission to a wireless routing device 520 (as a relay). In the case where the video receiving device 530 is in the same wireless local area network as the wireless laparoscope 12, the video receiving device 530 may be connected to the same wireless routing device 520 to receive the video signal sent by the wireless laparoscope 12. In the event that the video receiving device 530 is not in the same wireless local area network as the wireless laparoscope 12, the video receiving device 530 may be indirectly connected to the wireless routing device 520 to receive the video signal emitted by the wireless laparoscope 12.

Based on the various examples described above with reference to fig. 5A-5C, at least one aspect of the present disclosure provides a wireless laparoscope. The wireless laparoscope comprises: an optical component for imaging; the camera is used for collecting the image formed by the optical component and outputting a first video signal; a conversion module configured to convert the first video signal into a second video signal suitable for transmission by wireless means; and a wireless transmission module configured to transmit the second video signal to the outside by wireless.

Because the wireless laparoscope adopts a wireless transmission mode, complicated cable connection is not needed, the installation and operation flow are simplified, the portability of the operation of a doctor is improved, the occupation of the operation space is saved, the wireless laparoscope is convenient to carry, the wireless laparoscope is more convenient for a scene needing an outgoing operation, and the cable winding and misoperation caused by the cable collision can be avoided.

Accordingly, at least another aspect of the present disclosure provides a method performed by a wireless laparoscope. The method comprises the following steps: and acquiring an image formed by the optical component of the wireless laparoscope by a camera of the wireless laparoscope and outputting a first video signal. The method further comprises the steps of: the first video signal is converted by the wireless laparoscopic conversion module into a second video signal suitable for wireless transmission. The method further comprises the steps of: and the wireless sending module of the wireless laparoscope sends the second video signal to the outside in a wireless mode.

Fig. 6 is a view showing an exemplary appearance of the wireless laparoscope of fig. 2. As shown in fig. 2, the wireless laparoscope includes a lens barrel 627 and a hand grip 628. The hand grip 628 includes a hand grip housing 6284 and a hand grip plate 6285. A function indicating LED unit 6286 and a key unit 6287 are provided on the handle plate 6285. The function indication LED unit 6286 may include a plurality of LED lamps respectively indicating states of the respective functions of the wireless laparoscope. The key unit 6287 may comprise a plurality of keys for operating the wireless laparoscope.

Fig. 7 is a cross-sectional view illustrating another exemplary configuration of the wireless laparoscope of fig. 2. As shown in fig. 7, the wireless laparoscope includes an integral holder 71, a lens barrel 72, and a handle 73. Fig. 8A is a sectional view of the integrated fixing base 71. As shown in fig. 8A, the integral fixing base 71 has a columnar structure. The front end of the columnar structure is a slope at a predetermined acute angle (30 degrees in the example of fig. 8A) to the vertical plane. Since the front end of the integral fixing base is an inclined plane forming a predetermined acute angle with the vertical plane, a top view can be obtained without lifting the handle of the laparoscope to the vertical direction when using the laparoscope, or a more accurate view angle for operating forceps, a scalpel, or the like can be more easily obtained by adapting to the operation angle of the operator without generating interference of spatial positions, and thus the operator can be more relaxed when using the laparoscope compared with a 90-degree laparoscope. An inwardly recessed first cavity 714 is provided in a central portion of the rear end of the columnar structure for mounting an objective lens 716 (see fig. 8B) for imaging. The objective 716 may be mounted to the integral mount 71 by a sealant. A window 711 is installed at a central portion of the front end of the columnar structure. The window 711 is also at the predetermined acute angle to the vertical to fit the assembly plane. The window 711 may be attached to the integrated fixing base 71 by laser welding, so that sealability can be ensured. A plurality of LEDs 712-1 to 712-N are mounted at the peripheral portion of the front end of the columnar structure, where N is an integer greater than 1. The plurality of LEDs may be mounted to the integral mount 71 by a sealant. At the rear end of each LED, the integral fixing base 71 is correspondingly provided with a second cavity 715-1 to 715-N extending along the axial direction of the columnar structure (N is an integer greater than 1) for arranging power supply wires of the corresponding LEDs. A prism 713 is installed between the window 711 and the first cavity 714 for allowing (by refraction) light introduced through the window 711 to enter the objective 716 in a direction parallel to the axial direction of the objective 716. The prism 713 may be mounted to the integrated holder 71 by a sealant. For example, the sealant may be AB glue, soft glue, or the like. Because the above-mentioned integrated fixing base 71 is adopted, and particularly, the inside of the integrated fixing base is filled with sealant without being fixed by screws, the position deviation caused by the different tightness of the screws is avoided, and compared with some existing laparoscopes with corresponding parts assembled together, the precision problem generated between the structures can be reduced, so that the gap or light leakage phenomenon is avoided.

Fig. 8B is a sectional view showing a state in which the integrated holder 71 is assembled with the lens barrel 72. The lens barrel 72 may be connected to the integrated holder 71 by laser welding, so that sealability can be ensured. As shown in fig. 8B, a camera 722 and a first circuit board 724 are mounted in the lens barrel 72. For example, the first circuit board 724 may be implemented using a PCB. The camera 722 is disposed adjacent to the objective 716, and is configured to capture an image formed by the objective 716 and output a first video signal. Because the camera is adjacent to the objective lens, the laparoscope is an electronic laparoscope, and compared with the existing optical laparoscope with the rear camera, the laparoscope has the advantages of smaller volume, lighter weight and more convenient carrying, and the sensitization effect of the camera is better than that of the optical laparoscope, the requirement on illumination intensity is lower, and the laparoscope is more beneficial to reducing the power consumption of an illumination light source and longer endurance time.

As described above with reference to fig. 1 and 2, the wireless laparoscope includes a conversion module configured to convert a first video signal into a second video signal suitable for wireless transmission, and a wireless transmission module configured to transmit the second video signal to the outside wirelessly. The first video signal may follow a serial interface protocol (e.g., mipsi protocol) such as for a camera of a mobile device, and the second video signal may follow a TTL standard, for example. The conversion module includes: a first conversion sub-module configured to convert the first video signal into an intermediate video signal that complies with a serial interface protocol (e.g., V-by-One protocol) for a flat panel display; and a second conversion sub-module configured to convert the intermediate video signal into a second video signal. The first conversion sub-module may be located on the first circuit board 724. An illumination control circuit for controlling the light emission of the plurality of LEDs may also be located on the first circuit board 724. Because the wireless transmission mode is adopted, the wireless laparoscope does not need to carry out complicated cable connection, simplifies the installation and operation flow, improves the portability of the operation of doctors, saves the occupation of the operation space, is convenient to carry, is more convenient to the scene needing the outgoing operation, and can avoid cable winding and misoperation caused by cable miscollision.

As shown in fig. 8B, the camera 722 is fixed in the lens barrel 72 by a jig 721. The clamp 721 may be connected to the integrated fixing base 71 by a sealant. The first circuit board 724 may be fixed in the jig 721 by a sealant. For example, the sealant may be AB glue, soft glue, or the like. The first portion 7211 of the clip 721 at the periphery may be hollow for routing the power supply traces of the plurality of LEDs. The centrally located second portion 7212 of the clamp 721 may be solid for supporting the camera 722 and the first circuit board 724. A first flexible flat cable 723 is connected between the camera 722 and the first circuit board 724 for transmitting a first video signal. For example, the first flexible flat cable 723 may be a flexible circuit board (FPC). Because the integrated structure that soft board and hard board combined together has been adopted, therefore the heat can not gather in the camera position of front end, but the dispersion is on the first circuit board of rear end to can bring better radiating effect.

Fig. 8C is a cross-sectional view of handle 73. As shown in fig. 8C, a plurality of keys 731 for operating the wireless laparoscope, a key pad 732, a second circuit board 733, a battery 734, and a charging interface and antenna 735 are mounted in the handle 73. The upper end of the handle 73 is planar and provided with a plurality of keys 731, and the lower end of the handle 73 is a cambered surface. This facilitates the operator to perform key operations and to perform holding. The second circuit board 733 is a main control circuit board, which may be implemented, for example, using a PCB. The aforementioned second conversion sub-module and wireless transmission module may be located on the second circuit board 733. A second flexible flat cable for transmitting an intermediate video signal may be connected between the first circuit board 724 and the second circuit board 733.

Based on the various examples described above with reference to fig. 7, 8A-8C, at least one aspect of the present disclosure provides a wireless laparoscope. The wireless laparoscope comprises: the integrated fixing seat, the camera, the conversion module and the wireless transmission module. The integrated fixing seat is provided with a columnar structure. The front end of the columnar structure is an inclined plane which forms a preset acute angle with the vertical plane. An inwardly recessed cavity is provided in a central portion of a rear end of the columnar structure for mounting an objective lens for imaging. A window is installed at a central portion of the front end of the columnar structure. A plurality of LEDs are mounted at a peripheral portion of the front end of the columnar structure. A prism is installed between the louver and the cavity for allowing light introduced through the louver to enter the objective lens in a direction parallel to an axial direction of the objective lens. The camera is used for collecting images formed by the objective lens and outputting a first video signal. The camera is arranged adjacent to the objective lens. The conversion module is configured to convert the first video signal into a second video signal suitable for transmission over the air. The wireless transmission module is configured to wirelessly transmit the second video signal to the outside.

In one embodiment, the predetermined acute angle is a 30 degree angle.

In one embodiment, the window pane is mounted to the integral mount by laser welding.

In one embodiment, the plurality of LEDs, the prism and the objective lens are mounted to the integral mount by a sealant.

In one embodiment, the first video signal complies with a serial interface protocol for a camera of a mobile device and the second video signal complies with the TTL standard. The conversion module includes: a first conversion sub-module configured to convert the first video signal into an intermediate video signal that complies with a serial interface protocol for a flat panel display; and a second conversion sub-module configured to convert the intermediate video signal into the second video signal.

In One embodiment, the serial interface protocol for the camera of the mobile device is the MIPICOSI protocol, and the serial interface protocol for the flat panel display is the V-by-One protocol.

In one embodiment, the wireless laparoscope comprises a lens barrel connected with the integrated fixing seat. The camera and the first circuit board are mounted in the lens barrel. The first conversion sub-module is located on the first circuit board.

In one embodiment, the lens barrel is connected to the integral holder by laser welding.

In one embodiment, the camera is fixed in the lens barrel by a jig. The clamp is connected with the integrated fixing seat through sealant. The first circuit board is fixed in the clamp through sealant.

In one embodiment, a first flexible flat cable is connected between the camera and the first circuit board for transmitting the first video signal.

In one embodiment, the wireless laparoscope includes a handle coupled to the barrel. A second circuit board is mounted in the handle. The second conversion sub-module and the wireless transmission module are located on the second circuit board.

In one embodiment, the upper end of the handle is planar and is provided with a plurality of keys for operating the wireless laparoscope. The lower end of the handle is a cambered surface.

In one embodiment, a second flex cable for transmitting the intermediate video signal is connected between the first circuit board and the second circuit board.

Fig. 9 is a flowchart illustrating a method performed by a wireless laparoscopic system according to an embodiment of the present disclosure. In step 902, an image of an optical component of a wireless laparoscope is acquired by a camera of the wireless laparoscope and a first video signal is output. At step 904, the first video signal is converted by a conversion module of the wireless laparoscope into a second video signal suitable for transmission wirelessly. In step 906, the wireless sending module of the wireless laparoscope sends the second video signal to a cloud server in a wireless manner. At step 908, the second video signal transmitted by the wireless laparoscope is received by the cloud server, image processed, and the processed second video signal is transmitted to one or more video receiving devices. The details of the above steps are described in detail in the foregoing with respect to the wireless laparoscopic system, and thus are not repeated.

For the method shown in fig. 9, because a wireless transmission mode is adopted, complicated cable connection is not needed, the installation and operation flow are simplified, the portability of the operation of a doctor is improved, the occupation of the operation space is saved, the carrying is convenient, the method is more convenient for a scene needing the outgoing operation, and the cable winding and the misoperation caused by the cable collision can be avoided. In addition, the video signals are wirelessly transmitted to the cloud server and then transmitted to the video receiving equipment by the cloud server, so that on one hand, the types of equipment for receiving the video signals can be flexible and diversified, a plurality of equipment can simultaneously watch real-time pictures, operation teaching and alternating current learning are convenient, and on the other hand, the cloud server can be utilized to uniformly process the video images without processing the video images at the positions of the laparoscopes, so that the configuration cost is saved.

References in the present disclosure to "one embodiment," "an embodiment," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described. It should be noted that two blocks (or steps) shown in succession may in fact be executed substantially concurrently or the blocks (or steps) may sometimes be executed in the reverse order, depending upon the functionality involved.

It will be understood that, although the terms "first," "second," etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present disclosure. In this disclosure, the term "and/or" includes any and all combinations of one or more of the associated listed terms. It will be further understood that the terms "comprises," "comprising," "has," "including," and/or "having," when used herein, specify the presence of stated features, elements, and/or components, but do not preclude the presence or addition of one or more other features, elements, components, and/or groups thereof. The term "coupled" as used herein encompasses direct and/or indirect coupling between two elements.

The disclosure includes any novel feature or combination of features disclosed herein either explicitly or in any of its generic forms. Various modifications and adaptations to the foregoing exemplary embodiments of this disclosure will become apparent to those skilled in the relevant arts in view of the foregoing description, when read in conjunction with the accompanying drawings. However, any and all modifications and adaptations will still fall within the scope of the non-limiting and exemplary embodiments of this disclosure.

Claims

1. A wireless laparoscopic system, comprising:

a wireless laparoscope comprising an optical component for imaging, a camera for acquiring an image formed by the optical component and outputting a first video signal, a conversion module configured to convert the first video signal into a second video signal suitable for being transmitted wirelessly, and a wireless transmission module configured to transmit the second video signal wirelessly to a cloud server; and

the cloud server is configured to receive the second video signal transmitted by the wireless laparoscope, perform image processing on the second video signal, and transmit the processed second video signal to one or more video receiving devices.

2. The wireless laparoscopic system according to claim 1, wherein the optical component is an objective lens and the camera is disposed adjacent to the objective lens.

3. The wireless laparoscopic system according to claim 2, wherein the first video signal complies with a serial interface protocol for a camera of a mobile device and the second video signal complies with a transistor-transistor logic TTL standard; and

Wherein, the conversion module includes: a first conversion sub-module configured to convert the first video signal into an intermediate video signal that complies with a serial interface protocol for a flat panel display; and a second conversion sub-module configured to convert the intermediate video signal into the second video signal.

4. The wireless laparoscopic system according to claim 3, wherein the serial interface protocol for the camera of the mobile device is a mobile industry processor interface MIPI camera serial interface CSI protocol and the serial interface protocol for the flat panel display is a V-by-One protocol.

5. The wireless laparoscopic system according to claim 1, wherein the wireless transmission module is communicatively connected with the cloud server via a wireless routing device; or alternatively

Wherein the wireless transmission module is a cellular communication module communicably connected with the cloud server via a base station.

6. The wireless laparoscopic system according to claim 3, wherein the wireless laparoscope further comprises: a light emitting diode, LED, illumination component disposed about the objective lens, and an illumination control circuit configured to control the illumination of the LED illumination component.

7. The wireless laparoscopic system according to claim 6, wherein the LED illumination component comprises a plurality of cold light LEDs.

8. The wireless laparoscopic system according to claim 6, wherein the wireless laparoscope further comprises a lens barrel and a handle;

wherein the objective lens, the camera and a first circuit board are arranged in the lens barrel, and the illumination control circuit and the first conversion sub-module are positioned on the first circuit board;

the handle is provided with a second circuit board, the second conversion sub-module and the wireless transmission module are located on the second circuit board, and a flexible flat cable for transmitting the intermediate video signal is connected between the first circuit board and the second circuit board.

9. The wireless laparoscopic system according to claim 1, wherein the wireless laparoscope further comprises: and an image preprocessing module configured to perform image preprocessing on the second video signal.

10. The wireless laparoscopic system according to claim 8, wherein a battery for powering the wireless laparoscope is detachably mounted in the handle.

11. A wireless laparoscope, comprising:

an optical component for imaging;

The camera is used for collecting the image formed by the optical component and outputting a first video signal;

a conversion module configured to convert the first video signal into a second video signal suitable for transmission by wireless means; and

and a wireless transmission module configured to wirelessly transmit the second video signal to the outside.

12. A wireless laparoscope, comprising:

an integrated holder having a columnar structure, a front end of the columnar structure being a slope forming a predetermined acute angle with a vertical plane, an inwardly recessed cavity being provided at a central portion of a rear end of the columnar structure for mounting an objective lens for imaging, a louver being mounted at a central portion of a front end of the columnar structure, a plurality of light emitting diodes LEDs being mounted at a peripheral portion of the front end of the columnar structure, a prism being mounted between the louver and the cavity for allowing light introduced through the louver to enter the objective lens in a direction parallel to an axial direction of the objective lens;

the camera is used for collecting images formed by the objective lens and outputting a first video signal, and the camera is arranged adjacent to the objective lens;

13. A method performed by a wireless laparoscopic system, comprising:

acquiring an image formed by an optical component of the wireless laparoscope by a camera of the wireless laparoscope and outputting a first video signal;

converting, by a conversion module of the wireless laparoscope, the first video signal into a second video signal suitable for wireless transmission;

the wireless sending module of the wireless laparoscope sends the second video signal to a cloud server in a wireless mode; and

the second video signal transmitted by the wireless laparoscope is received by the cloud server, image-processed, and the processed second video signal is transmitted to one or more video receiving devices.