WO2021036932A1

WO2021036932A1 - Endoscope connector, endoscope body, endoscope cold light source, and endoscope system

Info

Publication number: WO2021036932A1
Application number: PCT/CN2020/110521
Authority: WO
Inventors: 邓安鹏; 孙宇; 周健; 陈魁; 袁谋堃
Original assignee: 重庆金山科技（集团）有限公司
Priority date: 2019-08-23
Filing date: 2020-08-21
Publication date: 2021-03-04
Also published as: CN110367910A

Abstract

An endoscope connector, an endoscope body, an endoscope cold light source, and an endoscope system. An electronic endoscope connector comprises a first optical signal transmission path, a second optical signal transmission path, and a contact-type power supply part; an endoscope body side electro-optical conversion module converts an image electrical signal into an optical signal and transmits the optical signal to a photoelectric conversion module of an electronic endoscope image processor; a control signal sent by the electronic endoscope image processor is converted by an electro-optical conversion module at a cold light source side and then is transmitted to the endoscope body side photoelectric conversion module; the contact-type power supply part comprises a cold light source side isolation power source and a contact-type power supply pin, and further comprises an endoscope body side contact-type power supply pin. The electronic endoscope connector uses a contact-type power supply mode, has no electromagnetic leakage risk, and is small in structural size, thereby facilitating realizing the miniaturization of the connector. The electronic endoscope connector uses two optical signal transmission paths to respectively transmit image information and control information so as to realize the separation of signal transmission and power supply, and thus, the anti-interference capability of signals is strong.

Description

Endoscope connector, endoscope body, endoscope cold light source and endoscope system

Technical field

The invention belongs to the technical field of medical equipment, and particularly relates to an electronic endoscope joint, an endoscope body, an endoscope cold light source, and an endoscope system.

Background technique

When the medical endoscope is working, the endoscope body equipped with a camera takes pictures of the scene in the cavity, which is processed by the processing device and displayed on the display. The image captured by the camera is generally transmitted to the processing device via a metal wire. The mirror body is connected to the host by a connector. In order to solve the electromagnetic interference problem, increase the channel bandwidth and realize the overall waterproofing of the mirror body, it is proposed to replace electricity with light at the connector position. To transmit image signals.

CN104939799B discloses an electronic endoscope and an electronic endoscope device. The electronic endoscope wirelessly supplies power to the scope body. The wireless power supply has the risk of electromagnetic leakage, and the size of the wireless power supply structure is large, which is not conducive to the miniaturization of the connector .

CN105455766B discloses a connector for an endoscope and an endoscope. The connector for the endoscope transmits image signals using a single optical path. The signal transmission and power supply adopt the contact form of metal contacts. There are problems: signal transmission And the metal contact method for power supply causes insufficient anti-interference ability of the signal.

Summary of the invention

The present invention aims to at least solve the technical problems existing in the prior art, and particularly innovatively proposes an electronic endoscope joint, an endoscope body, an endoscope cold light source, and an endoscope system.

In order to achieve the above object of the present invention, according to the first aspect of the present invention, the present invention provides an electronic endoscope connector, which includes a mirror body side and a cold light source side that are matched with each other, and the connector includes a first optical signal. A transmission path, a second optical signal transmission path, and a contact power supply part; the first optical signal transmission path includes a mirror-side electro-optical conversion module, and the mirror-side electro-optical conversion module converts the image electrical signal detected by the mirror sensor into The optical signal is transmitted to the first optical fiber interface on the cold light source side, and the first optical fiber interface transmits the image light signal to the photoelectric conversion module of the image processor of the electronic endoscope through the optical fiber; the second optical signal transmission path includes the lens body side Photoelectric conversion module. After the control signal sent by the image processor of the electronic endoscope is converted by the electro-optical conversion module on the cold light source side, the control signal is transmitted to the lens body side photoelectric conversion module through the second optical fiber interface; the contact power supply unit includes a cold light source The side isolated power supply and the contact power supply socket/contact power supply pin connected to the isolated power supply also include the lens body side contact power supply pin/contact power supply socket and the power supply unit connected to the side isolation power supply.

The invention adopts the contact type power supply mode to supply power, there is no risk of electromagnetic leakage, and the structure size is small, which is beneficial to realize miniaturization of the connector. The invention adopts two optical signal transmission paths to respectively transmit image information and control information, realizes the separation of signal transmission and power supply, and has strong signal anti-interference ability.

In a preferred embodiment of the present invention, the connector further includes an illumination light interface and a gas supply interface, and the cold light source of the electronic endoscope provides illumination light and working gas to the endoscope body through the illumination light interface and the gas supply interface. .

The invention arranges the lighting optical interface, the image information optical interface, the gas supply interface, the power supply interface and the signal optical interface on the same connector, so that the miniaturization of the connector is realized, and all the interfaces are connected at one time, and the plugging is convenient.

In order to achieve the above-mentioned object of the present invention, according to the second aspect of the present invention, the present invention provides an electronic endoscope lens body, which includes a lens body tip circuit, an operating handle relay circuit, and light guide data Conversion circuit; the lens body head end circuit includes a sensor and a parallel-serial data conversion unit, the sensor collects image signals and transmits them to the parallel-serial data conversion unit, the parallel-serial data conversion unit converts parallel data into serial data and Output to the light guide data conversion circuit; the operation relay circuit includes a clock unit and a power supply unit, the clock unit provides a reference clock for the sensor, and the power supply unit is at least the lens head end circuit and the operation handle relay Circuit power supply; the light guide data conversion circuit includes a serial-to-parallel data conversion unit, a processor, a memory, and the structure of the electronic endoscope connector lens body of the present invention, and the serial-to-parallel data conversion unit receives serial images The data is converted into parallel data and transmitted to the processor for video format conversion. The mirror information, video data, and key information are sent to the photoelectric conversion module of the first optical signal transmission path, and the output signal of the photoelectric conversion module of the second optical signal transmission path Connected to the processor, the photoelectric conversion module is used to receive the control signal sent by the image processor of the electronic endoscope.

The electronic endoscope body of the present invention adopts the endoscope joint of the present invention to connect with the cold light source, which can reduce the number of connectors and improve the reliability; the anti-interference ability of the electronic endoscope system is improved, and the electronic endoscope is reduced. The bit error rate of the communication.

In a preferred embodiment of the present invention, the operation relay circuit further includes an equalization module and a pre-emphasis module, and the parallel-serial data conversion unit of the lens body head-end circuit converts parallel data into serial data. The output is output to the operation relay circuit equalization module, which equalizes the data and transmits it to the pre-emphasis module, and the pre-emphasis module transmits the emphasis to the serial-parallel data conversion unit of the light guide control circuit.

The invention improves the quality of the eye pattern of the digital signal through the processing of the equalization module, and the data receiving end can reduce the bit error rate. The pre-emphasis module increases the amplitude of the high-frequency signal to offset the more attenuation of the high-frequency part than the low-frequency signal during the transmission process.

In order to achieve the above object of the present invention, according to the third aspect of the present invention, the present invention provides a cold light source for an electronic endoscope, which includes a light source module and a gas supply module, and also includes the electronic endoscope joint body of the present invention The structure of the cold light source side; the first optical fiber connection port of the cold light source of the electronic endoscope receives the optical signal output by the electro-optical conversion module on the lens body side, and transmits it to the optical fiber connector through the optical fiber and sends it to the image processor of the electronic endoscope; The connector of the cold light source of the endoscope is connected to the control signal output end of the image processor of the electronic endoscope, and the control signal is converted into an optical signal through the photoelectric conversion module of the second optical signal transmission path and output to the mirror through the second optical fiber interface. Body-side photoelectric conversion module; the isolated power supply of the cold light source of the electronic endoscope is connected with a contact power supply socket/contact power supply pin. When working, the contact power supply socket/contact power supply pin and the lens body side contact power supply Pin/contact power supply socket connection.

The cold light source of the electronic endoscope of the present invention provides a light source and compressed air for the electronic endoscope, and at the same time receives signals from the electronic endoscope and the image processor of the electronic endoscope, and provides a forwarding path. It adopts the endoscope connector of the present invention to connect with the scope body, which can reduce the number of connectors and improve the reliability; the anti-interference ability of the electronic endoscope system is improved, and the bit error rate of the electronic endoscope communication is reduced.

In a preferred embodiment of the present invention, there are two transmission channels between the cold light source and the image processor of the electronic endoscope; using the first transmission channel, the image processor sends the photometric value to the cold light source, and the cold light source The light source controller controls the current value output by the constant current switching power supply after receiving the photometric value, and adjusts the luminous flux output of the LED light source; using the second transmission channel, the cold light source of the electronic endoscope sends the cold light source fault information to the image processor.

The use of two transmission channels can reduce the response time of light source adjustment, and can make the screen brightness reach the set brightness value faster, and will not be too dark or too bright for a long time.

In order to achieve the above-mentioned object of the present invention, according to the fourth aspect of the present invention, the present invention provides an electronic endoscope system, which includes the electronic endoscope body of the present invention, and the electronic endoscope cooler of the present invention. A light source, and an electronic endoscope image processor; the electronic endoscope body and the electronic endoscope cold light source are connected through the electronic endoscope joint of the present invention; the photoelectric conversion module of the electronic endoscope image processor The received optical signal is converted into an electrical signal and transmitted to the display interface for display.

The electronic endoscope system of the present invention adopts two optical signal transmission paths to respectively transmit image information and control information, realizes the separation of signal transmission and power supply, and has strong signal anti-interference ability.

In a preferred embodiment of the present invention, the electronic endoscope image processor includes FPGA and ARM, and the photoelectric conversion module of the electronic endoscope image processor converts the received optical signals into electrical signals and sends them Into the GTP interface of the FPGA, the FPGA separates the video data from the key signal, mirror body information and other information. The signals other than the video signal are sent to the ARM through UART, and the video signal is processed and sent to the ARM, and the ARM sends the received video signal The display shows that the received key signal enters the corresponding processing interface according to the key definition, and the received mirror body information is sent to the display for display; the ARM is also connected to the external interface device, and receives the control instructions issued by the external interface device for corresponding Processing.

Realize the reality of the image and the response to the control command of the external device.

In another preferred embodiment of the present invention, it further includes an optical collimator, the optical collimator is arranged on the optical fiber interface of the electro-optical conversion module/photoelectric conversion module of the endoscope body and the cold light source of the electronic endoscope between. The optical communication interface between the electronic endoscope and the cold light source of the electronic endoscope has an optical collimator to reduce optical transmission loss.

In still another preferred embodiment of the present invention, the cold light source of the electronic endoscope and the image processor of the electronic endoscope are integrally arranged or separately arranged. Various designs provide applicability.

Description of the drawings

1 is a schematic cross-sectional view of the structure of an electronic endoscope joint lens body side in a preferred embodiment of the present invention;

2 is a schematic diagram of the circuit structure of an electronic endoscope system in a preferred embodiment of the present invention.

detailed description

The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and are only used to explain the present invention, but should not be understood as limiting the present invention.

In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, not It is indicated or implied that the pointed device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected", and "connected" should be interpreted broadly. For example, they can be mechanically connected or electrically connected, or two The internal communication between the elements may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meaning of the above terms can be understood according to specific circumstances.

The present invention provides an endoscope system which can solve the electromagnetic interference problem and is beneficial to the miniaturization of the connector. As shown in Figure 2, the present invention discloses an electronic endoscope connector, which includes a mirror body side and a cold light source side that are matched with each other. That is, the connection between the lens body and the cold light source is realized through an electronic endoscope connector, which includes a first optical signal transmission path, a second optical signal transmission path and a contact power supply part, as follows:

The first optical signal transmission path includes a mirror-side electro-optical conversion module. The mirror-side electro-optical conversion module converts the image electrical signal detected by the mirror sensor into an optical signal and transmits it to the first optical fiber interface on the cold light source side. The first optical fiber interface passes The optical fiber transmits the image light signal to the photoelectric conversion module of the image processor of the electronic endoscope.

The second optical signal transmission path includes a photoelectric conversion module on the mirror body side. After the control signal sent by the image processor of the electronic endoscope is converted by the electro-optical conversion module on the cold light source side, the control signal is transmitted to the photoelectric conversion module on the mirror body side through the second optical fiber interface. Conversion module.

The contact power supply unit includes a cold light source side isolated power supply and a contact power supply socket/contact power supply pin connected to the isolated power supply, and also includes a lens side contact power supply pin/contact power supply socket and a power supply unit connected to it .

In this embodiment, the specific electro-optical conversion module, the electro-optical conversion module, the optical fiber interface, the isolated power supply, the power supply socket and the power supply pin can all adopt the existing junction structure and the existing connection mode.

In this embodiment, the joint further includes an illumination light interface and a gas supply interface, and the cold light source of the electronic endoscope provides illumination light and working gas to the endoscope body through the illumination light interface and the gas supply interface. As shown in FIG. 1, from the side of the lens body, the connector (ie, the lens body side connector) is provided with an illumination light interface 10, an image information light interface 20, a gas supply interface 30, a power supply interface 50, and a signal light interface 40. All the interfaces are arranged on the same joint, which realizes the miniaturization of the connector, and all the interfaces are connected at one time, which is convenient for plugging.

The present invention also provides an electronic endoscope lens body, as shown in FIG. 2, which includes a lens body tip circuit, an operating handle relay circuit, and a light guide data conversion circuit. Among them, the lens head end circuit includes a sensor and a parallel-serial data conversion unit. The sensor collects image signals and transmits them to the parallel-serial data conversion unit. The parallel-serial data conversion unit converts parallel data into serial data and outputs it to the light guide. Circuit.

The relay circuit of the operation handle includes a clock unit and a power supply unit. The clock unit controls the acquisition frequency of the sensor. The power supply unit at least supplies power to the head end circuit of the lens body and the relay circuit of the operation handle.

The light guide data conversion circuit includes a serial-parallel data conversion unit, a processor, a memory, and the structure of the electronic endoscope connector lens body of the present invention. The serial-parallel data conversion unit receives serial image data and converts it into parallel data and transmits it to The processor performs video format conversion. The mirror information and video data are sent to the photoelectric conversion module of the first optical signal transmission path. The output signal of the photoelectric conversion module of the second optical signal transmission path is connected to the processor. The photoelectric conversion module is used to receive electronics. The control signal sent by the endoscope image processor.

In this embodiment, the processor may specifically, but is not limited to, adopt the XC7K410T-2FFG900I model, and the specific connection mode with the serial-parallel data conversion unit and the photoelectric conversion module may adopt a general connection mode.

The light guide part data conversion circuit is also provided with a power supply unit, which obtains power from the contact power supply pin/contact power supply socket on the side of the lens body, which can be integrated with the power supply unit on the relay circuit of the operation, or it can be as shown in Figure 2. Split setup shown.

In this embodiment, the sensor, the parallel-serial data conversion unit, the clock unit, the power supply unit, the serial-parallel data conversion unit, and the memory all adopt structures commonly used in existing electronic endoscopes.

The processor performs video format conversion, specifically, but not limited to, using the data converter disclosed in CN201310717041.8 to convert digital image data into transmission data. The mirror body information can be, but not limited to, the information disclosed in CN201480013087.4 and the mirror body information acquisition part in the patent can be used to obtain it.

As shown in Figure 2, in a preferred embodiment of the present invention, due to the small space of the hard part of the lens body tip, there are few circuit components that can be put down, and the MIPI image signal from the sensor is converted from parallel data to serial data. The SLVS signal is sent out, and the sensor control, clock signal, and power supply are provided by the operation relay board. The baud rate of the head-end video signal SLVS exceeds 2Gbps, and the video signal is transmitted to the operation relay board via a high-speed cable.

Operate the relay board to convert the SLVS signal into LVDS signal. The relay circuit also includes an equalizer module (Equalizer in Figure 2) and a pre-emphasis module (Emphasizer in Figure 2). The data conversion unit converts the parallel data into serial data and outputs it to the operation relay circuit equalization module, which equalizes the data and transmits it to the pre-emphasis module, and the pre-emphasis module transmits to the light guide control circuit after being emphasized The serial-to-parallel data conversion unit. The purpose of equalization is to make the eye diagram of the digital signal better, so that the data receiving end can reduce the bit error rate. In the data stream, the digital signal has a signal transmission composed of 0101. When the data of 0101 appears, the frequency of the digital signal square wave is equal to the baud rate, but when the data of 0011 appears, the frequency of the digital signal square wave is only Half of the baud rate; due to the bandwidth limitation of the signal transmission cable, the higher the frequency, the greater the attenuation of the signal, so the attenuation amplitude of the high-frequency signal in the data will be greater than that of the low-frequency signal. The purpose of pre-emphasis is to increase the amplitude of the high-frequency signal to offset more attenuation of the high-frequency part than the low-frequency signal during transmission. Operate the relay board to send out the video signal after equalization and pre-emphasis, and connect it to the light guide control board through a cable.

In this embodiment, the equalization module and the pre-emphasis module are integrated. Specifically, but not limited to, DS25BR100T can be used. The connection with the parallel-serial data conversion unit and the serial-parallel data conversion unit can adopt a common connection method.

The operation handle has at least one operation handle button, and the signal output terminal of the operation button is connected with the button signal input terminal of the processor. In a more preferred embodiment of the present invention, the operating handle has four buttons, and the four button signals are connected to the light guide control board.

The scope of the electronic endoscope further includes a sensor register and a light guide memory that are independently or integrally arranged, and the sensor register and the light guide memory are respectively connected to the processor.

In a more preferred embodiment of the present invention, the specific implementation of the light guide control board is: the light guide control board uses FPGA to deserialize the video signal and convert the video format, and at the same time key signal, mirror information and The video data is encoded and sent to the photoelectric conversion module through the GTP interface of FPGA. The output signal of the light receiving module is connected to the FPGA, and the light receiving module receives control signals such as sensor register configuration information and white balance parameters sent by the electronic endoscope image processor. The sensor register configuration information received by the FPGA configures the sensor register through the I2C bus, and the received white balance parameter is written into the light guide memory (EEPROM). EEPROM is also used to store mirror body information, such as mirror body serial number, manufacturing information, mirror body specification parameters and other data. The power supply of the entire electronic endoscope body is provided by the cold light source of the electronic endoscope through a contact connector.

The connection between the electronic endoscope and the cold light source of the electronic endoscope of the present invention is insulated, and the power supply is provided to the electronic endoscope through the isolated power supply. The optical communication interface between the electronic endoscope and the cold light source of the electronic endoscope has a light collimation module to reduce optical transmission loss.

The hardware scheme of the present invention can reduce the error rate of the electronic endoscope communication, especially the number of connectors can be reduced, and the reliability can be improved. At the same time, the anti-interference ability of the electronic endoscope system is greatly improved.

The present invention also provides a cold light source for an electronic endoscope, as shown in FIG. 2, which includes a light source module and a gas supply module, and also includes the cold light source side structure of the electronic endoscope joint lens body of the present invention. The first optical fiber connection port of the cold light source of the electronic endoscope receives the optical signal output by the electro-optical conversion module on the side of the scope, and transmits the optical signal to the optical fiber connector through the optical fiber and sends it to the electronic endoscope image processor. The connector of the cold light source of the electronic endoscope is connected to the control signal output end of the image processor of the electronic endoscope. The control signal is converted into an optical signal through the photoelectric conversion module of the second optical signal transmission path and output through the second optical fiber interface To the photoelectric conversion module on the side of the mirror body. The isolated power supply of the cold light source of the electronic endoscope is connected with a contact power supply socket/contact power supply pin, and when working, the contact power supply socket/contact power supply pin and the lens body side contact power supply pin/contact power supply Socket connection.

The cold light source of the electronic endoscope provides a light source and compressed air for the electronic endoscope, and at the same time receives signals from the electronic endoscope and the image processor of the electronic endoscope, and provides a forwarding path.

Specifically, in a preferred embodiment of the present invention, the first optical fiber connection port 1 receives the coded optical signal from the electronic endoscope, and then transmits it to the optical fiber connector 2 through the optical fiber and sends it out. The control signal TX from the image processor of the electronic endoscope is connected to the connector of the cold light source, and the control signal is transmitted through the second optical fiber interface 3 through the photoelectric conversion module to convert the electrical signal into an optical signal. The power signal of the electronic endoscope is provided by the cold light source of the electronic endoscope through the isolated power module, and is output through the contact-type power supply socket.

The present invention also provides an electronic endoscope system, as shown in FIG. 2, which includes the electronic endoscope body according to the present invention, the cold light source of the electronic endoscope according to the present invention, and the electronic endoscope Image processor. Wherein, the electronic endoscope body and the cold light source of the electronic endoscope are connected through the electronic endoscope joint of the present invention. The photoelectric conversion module of the image processor of the electronic endoscope converts the received optical signal into an electrical signal, and transmits it to the display interface for display.

From the image sensor at the head end of the mirror body to the display of the display, the transmission distance is relatively long, some even greater than 6 meters, and the transmission rate is high, and the anti-interference ability is very high. Hardware solutions.

In this embodiment, there are two transmission channels between the cold light source and the image processor of the electronic endoscope (specifically but not limited to RS-422 transmission channels); the first transmission channel is used to transfer the image processor to the cold light source. Send the metering value, the cold light source controller receives the metered value after calculation, controls the current value output by the constant current switching power supply, and adjusts the luminous flux output of the LED light source; using the second transmission channel, the cold light source of the electronic endoscope sends the image to the image The processor sends the fault information of the cold light source, which is specifically connected to the ARM, and is used for the cold light source of the electronic endoscope to send the fault information of the cold light source to the image processor, and the information received by the ARM is displayed on the display. The use of two channels can reduce the response time of light source adjustment, and can make the screen brightness reach the set brightness value faster, and will not be too dark or too bright for a long time. Through the two channels, the communication link between the image processor and the cold light source is shortened, so that the cold light source can respond faster to the dimming response sent by the image processor, and shorten the time when the picture is too bright or too dark. Adding the mirror body in-position detection mechanism can reduce the operation steps of the operator to manually power on or off.

In this embodiment, the image processor sends the photometric value to the cold light source. After the cold light source controller receives the photometric value, it calculates, controls the current value output by the constant current switching power supply, and adjusts the luminous flux output of the LED light source. But it is not limited to adopting the light metering and brightness adjustment methods disclosed in CN201410000455.3.

The publication number CN 109247905 A is a patent filed by the company before that proposes a method for detecting the insertion of the lens body, and this method can be used in the system. When the cold light source MCU detects the electronic endoscope insertion signal HotPlug, the MCU enables the isolated power signal PWR_EN, the MCU reports the FPGA mirror body in-position information, and the FPGA prepares to decode the image signal. When the scope is removed from the cold light source of the electronic endoscope, the HotPlug is set high, the MCU detects that the HotPlug is set high, and PWR_EN is set low, and the power of the electronic endoscope is turned off.

As shown in Figure 2, the electronic endoscope image processor is used for image signal processing and control signal transmission, image display and other functions. The photoelectric conversion module converts the received optical signal into an electrical signal, and sends it to the GTP interface of the FPGA. The FPGA separates the video data from the key signal, mirror information and other information, and signals other than the video signal are sent to the ARM through the UART, and the video signal After a series of processing, it is sent to ARM via PCIe. ARM sends the received video signal plus UI interface information to the display for display, the received key signal enters the corresponding processing interface according to the key definition, and the received mirror information is sent to the display for display. At the same time, ARM receives the control instructions issued by the external interface device for corresponding processing.

In addition to the improvements in the first optical signal transmission path and the second optical signal transmission path involved in the electronic endoscope image processor, the remaining functions and structures of the electronic endoscope image processor can, but are not limited to, adopt CN201721276325.8 The scheme disclosed in. In addition, the cold light source of the electronic endoscope and the image processor of the electronic endoscope are integrated or separated.

In this embodiment, the optical communication interface between the electronic endoscope and the cold light source of the electronic endoscope is provided with an optical collimator to reduce optical transmission loss.

In the description of this specification, descriptions with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean specific features described in conjunction with the embodiment or example , Structure, materials or features are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above-mentioned terms does not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principle and purpose of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

An electronic endoscope connector, which is characterized in that it includes a mirror body side and a cold light source side that are matched with each other, and the connector includes a first optical signal transmission path, a second optical signal transmission path, and a contact power supply part;

The first optical signal transmission path includes a mirror-side electro-optical conversion module. The mirror-side electro-optical conversion module converts the image electrical signal detected by the mirror sensor into an optical signal and transmits it to the first optical fiber interface on the cold light source side. An optical fiber interface transmits the image light signal to the photoelectric conversion module of the image processor of the electronic endoscope through the optical fiber;

The second optical signal transmission path includes a photoelectric conversion module on the mirror body side. After the control signal sent by the image processor of the electronic endoscope is converted by the electro-optical conversion module on the cold light source side, the control signal is transmitted to the mirror body through a second optical fiber interface. Side photoelectric conversion module;

The contact power supply unit includes a cold light source side isolated power supply and a contact power supply socket/contact power supply pin connected to the isolated power supply, and also includes a lens side contact power supply pin/contact power supply socket and a power supply unit connected to it .
The electronic endoscope connector of claim 1, wherein the connector further comprises an illuminating light interface and a gas supply interface, and the cold light source of the electronic endoscope is applied to the endoscope body through the illuminating light interface and the gas supply interface. Provide lighting and working gas.
An electronic endoscope lens body, which is characterized in that it comprises a lens body tip circuit, an operating handle relay circuit, and a light guide data conversion circuit;

The lens body head end circuit includes a sensor and a parallel-serial data conversion unit. The sensor collects image signals and transmits them to the parallel-serial data conversion unit. The parallel-serial data conversion unit converts parallel data into serial data and outputs it to the guide. Optical data conversion circuit;

The operation handle relay circuit includes a clock unit and a power supply unit, the clock unit provides a clock for the sensor, and the power supply unit at least supplies power to the lens body head end circuit and the operation handle relay circuit;

The light guide data conversion circuit includes a serial-to-parallel data conversion unit, a processor, a memory, and the structure on the side of the electronic endoscope joint lens body of claim 1, and the serial-to-parallel data conversion unit receives serial image data Converted into parallel data and transmitted to the processor for video format conversion, mirror information, video data, and mirror key information are sent to the photoelectric conversion module of the first optical signal transmission path, and the output of the photoelectric conversion module of the second optical signal transmission path The signal is connected to the processor, and the photoelectric conversion module is used to receive the control signal sent by the image processor of the electronic endoscope.
3. The electronic endoscope scope according to claim 3, further comprising a sensor register and a light guide part memory which are independently or integrally arranged, and the sensor register and the light guide part memory are respectively connected to the processor.
5. The electronic endoscope scope according to claim 3, further comprising at least one operation handle button, and the operation connects the signal output terminal of the button with the button signal input terminal of the processor.
The electronic endoscope scope according to claim 3, wherein the relay circuit of the operation handle further comprises an equalization module and a pre-emphasis module, and the parallel-serial data conversion unit of the head-end circuit of the scope will be in parallel The data is converted into serial data and output to the operation relay circuit equalization module. The equalization module equalizes the data and transmits it to the pre-emphasis module. After the pre-emphasis module is emphasized, it is transmitted to the serial-parallel data conversion of the light guide control circuit. unit.
A cold light source for an electronic endoscope, comprising a light source module and a gas supply module, and is characterized in that it further comprises the structure on the cold light source side of the electronic endoscope joint lens body according to claim 1;

The first optical fiber connection port of the cold light source of the electronic endoscope receives the optical signal output by the electro-optical conversion module on the side of the scope, and transmits it to the optical fiber connector through the optical fiber and sends it to the image processor of the electronic endoscope;

The connector of the cold light source of the electronic endoscope is connected to the control signal output end of the image processor of the electronic endoscope. The control signal is converted into an optical signal through the photoelectric conversion module of the second optical signal transmission path and output through the second optical fiber interface To the photoelectric conversion module on the side of the mirror body;

The isolated power supply of the cold light source of the electronic endoscope is connected with a contact power supply socket/contact power supply pin, and when working, the contact power supply socket/contact power supply pin and the lens body side contact power supply pin/contact power supply Socket connection.
8. The electronic endoscope cold light source according to claim 7, wherein there are two transmission channels between the cold light source and the electronic endoscope image processor;

Using the first transmission channel, the image processor sends the photometric value to the cold light source, and the cold light source controller controls the current value of the constant current switching power supply after receiving the photometric value, and adjusts the luminous flux output of the LED light source;

Using the second transmission channel, the cold light source of the electronic endoscope sends the fault information of the cold light source to the image processor.
An electronic endoscope system, characterized by comprising the electronic endoscope body according to any one of claims 3-6, the cold light source of the electronic endoscope according to one of claims 7-8, and the electronic endoscope Speculum image processor;

The electronic endoscope body and the cold light source of the electronic endoscope are connected by the electronic endoscope joint according to claim 1 or 2;

The photoelectric conversion module of the electronic endoscope image processor converts the received optical signal into an electrical signal, and transmits it to the display interface for display.
The electronic endoscope system according to claim 9, wherein the electronic endoscope image processor comprises FPGA and ARM, and the photoelectric conversion module of the electronic endoscope image processor converts the received optical signal Converted into electrical signals and sent to the GTP interface of FPGA. FPGA separates the video data from key signals, mirror information and other information. Signals other than the video signal are sent to ARM through the UART port, and the video signal is processed and sent to ARM. ARM will The received video signal is sent to the display for display, the received key signal enters the corresponding processing interface according to the key definition, and the received mirror information is sent to the display for display;

The ARM is also connected with an external interface device, and receives control instructions issued by the external interface device for corresponding processing.
The electronic endoscope system according to claim 9, further comprising a light collimator, the light collimator is provided in the electro-optical conversion module/photoelectric conversion module of the endoscope body and the electronic endoscope Between the optical fiber interfaces of the cold light source.
The electronic endoscope system according to claim 9, wherein the cold light source of the electronic endoscope and the image processor of the electronic endoscope are integrated or separated.