WO2022141246A1 - Endoscope camera system and light source host thereof - Google Patents

Abstract

A light source host for an endoscope camera system. The light source host comprises a controller, a first light source, a second light source, an optical coupler (3), a power measurement device (304) and a light source output interface (303), wherein the first light source is used for generating a first-kind light beam and outputting the first-kind light beam to a first light input end of the optical coupler (3) by means of a first optical path; the second light source is used for generating a second-kind light beam and outputting the second-kind light beam to a second light input end of the optical coupler (3) by means of a second optical path; the optical coupler (3) at least comprises a light combination lens, and the light combination lens is used for obtaining a combined light beam after blending the first-kind light beam inputted from the first light input end and the second-kind light beam inputted from the second light input end, and outputting the combined light beam by means of the light source output interface (303); and the power measurement device (304) is disposed on an optical path of the first-kind light beam and used for measuring the power of the first-kind light beam, such that a power measurement function for the first light source is realized.

Description

Endoscope camera system and its light source host technical field

The present application relates to an endoscope camera system, in particular to a light source host of the endoscope camera system.

Background technique

In recent years, endoscopic minimally invasive surgery has been widely used in the medical field. As an important part of the endoscope system, NIR light source can be used for both general endoscope illumination and ICG-NIR fluorescence imaging during surgery. Under the action of fluorescence navigation, it can quickly and accurately develop, label and locate lymph nodes, realize accurate tumor resection, avoid tumor residues, greatly reduce the surgical trauma of patients, and shorten the operation time. As an important component of ICG-NIR fluorescence imaging, the laser's infrared output power must meet certain standards. Exceeding this power will cause damage to human tissue. If it is less than this power, the best surgical effect cannot be achieved. In addition, with the laser With the use time, its infrared light output power will also be attenuated. Therefore, it is necessary to monitor the infrared output optical power of the laser in real time, and notify the user in time if there is an abnormality.

At present, the NIR light source does not detect the infrared output power of the laser, and it cannot alarm when there is an abnormality. However, the FQC will test the laser power before leaving the factory to determine whether it meets the product requirements. During use, when the light source driver board fails, causing the voltage or current of the laser to increase, the output power of the infrared light of the laser will be affected, causing damage to human tissue. At the same time, the life of the laser cannot be detected, and the user cannot be reminded that the laser has exceeded the service life.

technical problem

The embodiments of the present application provide an endoscope camera system and a light source host thereof. By setting a light source power detection device, the light source power detection function is realized.

technical solutions

On the one hand, an embodiment of the present application provides a light source host for an endoscope camera system, including a controller, a first light source, a second light source, an optical coupling device, a power detection device, and a light source output interface;

The first light source is configured to generate a first kind of light beam under the control of the controller, and output the first kind of light beam to the first light input end of the optical coupling device through a first optical path;

The second light source is configured to generate a second kind of light beam under the control of the controller, and output the second kind of light beam to the second light input end of the optical coupling device through a second optical path;

The optical coupling device includes at least a light-combining lens, and the light-combining lens is used for mixing the first kind of light beam input from the first light input end and the second kind of light beam input from the second light input end. , obtain a combined beam, and output the combined beam through the light source output interface;

The power detection device is arranged on the optical path of the first kind of light beam, and is used for detecting the power of the first kind of light beam.

In one embodiment, the light combining lens includes a dichroic mirror.

In one embodiment, the power detection device is disposed between the first light input end of the optical coupling device and the light combining lens.

In one embodiment, the optical coupling device further includes a reflecting mirror arranged between the first light input end and the light combining mirror, and the reverse mirror is used to input the first light input end of the first light input end. The kind light beam is reflected to the light combining lens, and part of the light of the first kind light beam is allowed to be transmitted to the power detection device, so that the power detection device can detect the first kind light beam based on the transmitted light. power.

In one embodiment, the reflecting lens is a dichroic mirror.

In one embodiment, the power detection device includes a photosensor.

In one embodiment, the power detection device further includes a filter disposed at the front end of the photoelectric sensor, for attenuating the first kind of light beam input to the photoelectric sensor to within the range of the photoelectric sensor.

In one embodiment, the photosensor is offset with respect to the incoming first kind of light beam to receive a portion of the first kind of light beam.

In one embodiment, the first light source is a near-infrared light source, and the second light source is a white light source.

In one embodiment, the first light source is a laser light source, and the second light source is an LED light source.

In one embodiment, the power detection device is further configured to output the detection result to the controller for processing.

In an embodiment, the controller is further configured to determine the working state of the first light source according to the acquired power of the first type of light beam.

In an embodiment, the controller is configured to determine the working state of the first light source according to the acquired power of the first kind of light beam, including: the controller is configured to determine that the power of the first kind of light beam is lower than When the threshold value is preset, information indicating the end of the service life of the first light source is output.

In one embodiment, the first light source is provided with a plurality of working levels, and the first light source correspondingly outputs a first type of light beam with different power values or different power ranges under each working level; the controller is used for: When the first light source operates at a working level corresponding to a maximum power value or a maximum power range, and when it is determined that the power of the first type of light beam is lower than a preset threshold, output information indicating the end of the service life of the first light source .

In an embodiment, the controller is configured to determine the working state of the first light source according to the acquired power of the first kind of light beam, including: the controller is configured to determine that the power of the first kind of light beam is not equal to When within the preset threshold range, outputting alarm information indicating that the first light source is abnormal.

In one embodiment, the first light source is provided with a plurality of working levels, the first light source correspondingly outputs a first type of light beam with different power values or different power ranges under each working level, and each working level corresponds to a different light beam. of the preset threshold range.

In an embodiment, the controller is further configured to: when it is determined that the light source host is activated, execute a self-checking working mode to determine the working state of the first light source.

In an embodiment, the controller is further configured to perform feedback control on the output power of the first light source according to the acquired power of the first kind of light beam, so that the output power of the first kind of light beam output by the first light source is The power is within a predetermined value or a predetermined range.

On the other hand, an embodiment of the present application also provides an endoscope camera system, including the light source host, light guide, endoscope, optical bayonet, communication cable, camera host, display, A video connection cable and an endoscope camera, the light source host is connected to the endoscope through the light guide, one end of the endoscope camera is connected to the endoscope through the optical bayonet, the endoscope The other end of the endoscope camera head is connected to the camera host through the communication cable, and the camera host is connected to the display through the video connection cable.

beneficial effect

In the endoscope camera system and its light source host provided by the embodiments of the present application, a power detector is arranged on the optical path of the first type of light beam of the light source host to detect the power of the first type of light beam, thereby realizing the power detection of the first light source Function.

Description of drawings

1 is a schematic structural diagram of an endoscope camera system in an embodiment;

2 is a schematic structural diagram of a light source host in an embodiment;

3 is a schematic structural diagram of an optical coupling device in an embodiment;

4 is a partial cross-sectional view of an optical coupling device in one embodiment.

Embodiments of the present invention

Wherein similar elements in different embodiments have used associated similar element numbers. In the following embodiments, many details are described so that the present application can be better understood. However, those skilled in the art will readily recognize that some of the features may be omitted under different circumstances, or may be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application from being overwhelmed by excessive description, and for those skilled in the art, these are described in detail. The relevant operations are not necessary, and they can fully understand the relevant operations according to the descriptions in the specification and general technical knowledge in the field.

Additionally, the features, acts, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can also be exchanged or adjusted in order in a manner obvious to those skilled in the art. Therefore, the various sequences in the specification and drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a necessary order unless otherwise stated, a certain order must be followed.

The serial numbers themselves, such as "first", "second", etc., for the components herein are only used to distinguish the described objects, and do not have any order or technical meaning. The "connection" and "connection" mentioned in this application, unless otherwise specified, include both direct and indirect connections (connections).

The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings. 

As shown in FIG. 1, an embodiment provides an endoscopic camera system 1000, the endoscopic camera system 1000 includes a light source 10, a light guide 20, a rigid endoscope 30, an optical bayonet 40, an endoscope Camera 50 , communication cable 81 , camera host 60 , display 70 and video connection cable 82 . The camera host 60 is connected to the endoscopic camera 50 through a communication cable 81 , and the image signals obtained by the endoscopic camera 50 are transmitted to the camera host 60 through the communication cable 81 for processing. In some embodiments, the communication cable 81 may be an optical communication cable, such as an optical fiber; the endoscope camera 50 converts the image signal (electrical signal) into an optical signal, which is transmitted to the camera host 60 by the communication cable 81, and the camera The host 60 then converts the optical signal into an electrical signal. The camera host 60 is connected to the display 70 through a video connection line 82 for sending video signals to the display 70 for display. It should be understood by those skilled in the art that FIG. 1 is only an example of the endoscopic camera system 1000, and does not constitute a limitation to the endoscopic camera system 1000. The endoscopic camera system 1000 may include more or more components than those shown in FIG. Fewer components, or a combination of certain components, or different components, eg, the endoscopic camera system 1000 may also include dilators, smoke control devices, input and output devices, network access devices, and the like.

The light source 10 is used to provide an illumination light source to the portion to be observed 100 . The illumination light source includes a visible light illumination light source and a laser illumination light source (eg, near-infrared light) corresponding to the fluorescent agent. Light sources 10 include, but are not limited to, laser light sources, LED light sources, narrow-band light sources, or laser diodes.

In this embodiment, the light source 10 includes a visible light source and a laser light source corresponding to a fluorescent reagent. The visible light source is an LED light source. In one embodiment, the visible light sources can respectively provide a plurality of monochromatic lights with different wavelength ranges, such as blue light, green light, red light, and the like. In other embodiments, the visible light source may also provide the combined light of the plurality of monochromatic lights, or a white light source with a broad spectrum. The wavelength range of the monochromatic light is approximately 400 nm to 700 nm. A laser light source is used to generate laser light. The laser is, for example, near-infrared light (Near Infrared; NIR). The peak wavelength of the laser light takes at least any one value within the range of 780 nm or 808 nm.

Since the light source 10 can simultaneously provide continuous visible light and laser light corresponding to the fluorescent reagent to the site to be observed, the acquisition efficiency of the camera 50 for the visible light image signal and the fluorescent image signal reflected by the site to be observed 100 is improved.

Wherein, before imaging by the endoscopic camera system 1000 , a contrast agent, such as indocyanine green (ICG), is introduced into the site to be observed 100 by intravenous or subcutaneous injection, so that it is not easy to use standard visible light imaging techniques See tissue structure and function (eg blood/lymph/bile in vessels) imaged. The site to be observed 100 includes, but is not limited to, the blood circulatory system, the lymphatic system, and tumor tissue. ICG is commonly known as indigo cyanine green, diagnostic green needle, and indocyanine green. It is a commonly used contrast agent in the clinical diagnosis of cardiovascular system diseases, and is widely used in choroidal and retinal vascular imaging. When the contrast agent in the site to be observed 100 absorbs the laser light corresponding to the fluorescent agent generated by the laser light source, fluorescence can be generated.

Please refer to FIG. 2 , which is a schematic structural diagram of a light source host in an embodiment. In the embodiment of the present application, the light source host includes two light sources, that is, a first light source and a second light source. Specifically, the first light source is a laser light source for emitting near-infrared light; the second light source is an LED light source for emitting white light as an example for description. In other embodiments, the type of light source can be selected according to the actual product, and the number of light sources is not limited to two, but also more light sources, and then the light beams output by the multiple light sources are combined to obtain the required light source. Combined beams.

The light source host mainly includes a box body 1 , a laser light source 2 , an optical coupling device 3 , an optical fiber 4 , a light source output interface 5 and an LED light source 6 .

The box body 1 has a square structure, and the box body 1 has a accommodating cavity. The laser light source 2 , the optical coupling device 3 , the optical fiber 4 and the light source output interface 5 are respectively installed in the box body 1 . One side of the box body 1 is a detachable side, and the detachable side is used for the assembly and maintenance of the light source host.

The laser light source 2 is installed at the rear end of the box body 1 (the front end of the light source host is the front end), and the laser light source 2 has a transmitting end, and the transmitting end is used for emitting laser light.

The optical coupling device 3 is installed at the front end of the box 1 , the rear end of the optical coupling device 3 is provided with a laser incident end and a white light incident end, and the front end of the optical coupling device 3 is provided with an exit end. The optical coupling device 3 includes several mirrors, and the several mirrors form a Y-shaped optical path. The optical coupling device 3 is used to couple the incident laser light and white light into mixed light for output.

There is a certain distance between the laser light source 2 and the optical coupling device 3. The outgoing end of the laser light source 2 and the laser incident end of the optical coupling device 3 are connected by an optical fiber 4. The optical fiber 4 is used to transmit the laser light emitted by the laser light source 2 to the optical coupling device. 3 inside. The laser light source 2 and the optical fiber 4 may be an integrated structure, and the laser light source 2 and the optical fiber 4 may also be a detachable structure.

The LED light source 6 is installed at the rear end of the optical coupling device 3 . The LED light source 6 is connected to the white light incident end of the optical coupling device 3 . The LED light source 6 is an LED light source and is used to emit white light into the optical coupling device 3 .

The light source host also includes a power supply 7 and a main control board 8 . The power supply 7 and the main control board 8 are installed in the box 1 , and the laser light source 2 , the LED light source 6 and the power supply 7 are respectively connected to the main control board 8 . The power supply 7 provides power for the devices in the box 1, and the main control board 8 is used to control the laser light source 2 to emit laser light and the LED light source 6 to emit white light. The main control board 8 can be a circuit board provided with a controller, and the controller can include a or multiple processors to execute the program to implement the relevant functional steps mentioned in this application.

The light source output interface 5 is a flat pie-shaped structure. The light source output interface 5 can be directly installed on the side wall of the box body 1 for connecting the light guide 20 to output the light of the light source host to the endoscope 30 . (As shown in Figure 1)

It should be noted that the structure of the light source host provided in the embodiment of the present application is only a specific embodiment, and in other embodiments, the structure thereof can be changed, such as omitting or adding some components, changing the layout position of some components, etc. .

As shown in Figure 3-4, it is a schematic structural diagram of the optical coupling device 3 in the light source host. The light coupling device 3 is provided with a laser incident end 301 , a white light incident end 302 and a light source output interface 303 ( 5 ). In this embodiment, the power detection device 304 is also arranged on the optical coupling device 3 and is located on the laser light path.

In one embodiment, the optical coupling device 3 can mix the input laser beam and the white light beam through a light combining lens (not shown in the figure), and after the combined beam is obtained, it is output through the light source output interface 303 . Specifically, the light combining lens includes a dichroic mirror. For example, the reflective surface of the dichroic mirror inputs the laser beam, the transmission surface inputs the white light beam, and the reflected laser beam and the transmitted white light beam form a combined beam. And the combining lens can be one lens, or a combination of multiple lenses, for example, it can also include a condenser lens (as shown by 310 in FIG. 4 ), which is used to homogenize the laser beam and input it to the dichroic mirror.

In one embodiment, the power detection device 304 is disposed on the optical path between the laser incident end 301 and the light combining lens.

In one embodiment, the power detection device 304 faces the laser incident end 301 so as to receive the laser light incident from the laser incident end 301 to detect the laser power.

Generally, the laser power is generally relatively large, and most of the power detection devices 304 cannot receive and detect high-power light.

In one embodiment, the power detection device 304 is offset relative to the laser incident end 301 to receive only part of the incident laser beam, so as to prevent the received laser light from exceeding the range of the power detection device 304 .

In another embodiment, the light coupling device 3 further includes a reflecting lens 307 disposed between the laser incident end 301 and the light combining lens. The reverse mirror 307 is used to reflect the laser beam input from the laser incident end 301 to the light combining mirror, and allow part of the laser beam to be transmitted to the power detection device 304 for the power detection device 304 to detect the laser beam based on the transmitted light of power. Specifically, the reflective mirror 307 will allow most of the laser beam to be reflected to the light combining mirror, and allow a small part of the laser beam to be transmitted to the power detection device 304 for power detection.

Especially for NIR light sources, since NIR light sources need to couple white light and near-infrared light, ICG-NIR fluorescence imaging can be realized. Therefore, there will be many lenses and mirrors in the optical coupling device, and these mirrors will interfere with the results of the power detection device, so the placement of the power detection device is very important. In this embodiment, the power detection device is provided on the transmission optical path of the reflective sheet 307. On the one hand, the intensity of the light output to the power detection device can be reduced, so that the power detection device can use a low-range device; When in position, the power detection device will not be interfered by other light in the optical coupling device, which ensures the accuracy of the power detection.

In one embodiment, the reflecting mirror 307 is a dichroic mirror.

In one embodiment, power detection device 304 includes photosensor 309 . In order to further ensure that the laser beam received by the photoelectric sensor 309 does not exceed the range, the power detection device 304 further includes a filter 308 arranged at the front end of the photoelectric sensor 309 for attenuating the laser beam input to the photoelectric sensor 309 to the photoelectric sensor 309 within the range. Of course, in some cases, the photosensor 309 may also be biased to receive only part of the input laser beam. In other embodiments, if a power detection sensor with a sufficient range is used, the filter 308 may not be used, or the power detection sensor need not be biased.

In the embodiment of the present application, a laser lens 305 and a diffusing sheet 306 may also be arranged in sequence at the laser incident end 302 , which are used for diffusing and homogenizing the input laser beam, and then outputting it to the reflecting mirror 307 .

The present application also provides an embodiment where the power detection device 304 in the light source host is electrically connected to the controller in the main control board 8 for outputting its detection result to the controller for processing. Specifically, the power detection device 304 can directly detect and acquire the power of the laser beam, and then send the power data to the controller, or send the detected raw signal to the controller, and the controller can calculate the power of the laser beam.

In this embodiment, the controller is configured to determine the working state of the laser light source according to the obtained power of the laser beam. Specifically, the working state of the laser light source may include a service life state of the laser light source, normal and abnormal working states of the laser light source, and the like.

The laser light source usually has a certain service life. After the service life is exceeded, the power of the laser light source may be different from the actual power you want to control, and the power may be unstable. In this case, the laser light source needs to be replaced. However, in the prior art, generally, the user can only subjectively judge the service life of the product to see if the service life is exceeded. In this case, it is possible to replace the laser light source in advance, increasing the cost of use; it is also possible that the laser light source has not been replaced after the service life of the laser light source has expired, which brings safety problems to the use.

In the light source host provided in this embodiment, after the power of the laser beam is detected by the power detection device 304, the service life of the light source can be determined based on the detected power information. Specifically, the controller is configured to output information indicating the end of the service life of the laser light source when it is determined that the power of the laser beam is lower than a preset threshold. For example, the text information of the end of the service life of the laser light source is displayed on the display screen of the light source host, or the corresponding sound and light alarm information is displayed to the user.

The light source life detection can be performed in a self-checking working mode when the light source host is started, so as to determine the service life information of the laser light source. It can also be monitored in real time during the use of the light source host.

The light source host provided in this embodiment can automatically detect the service life of the light source, and remind the user to prevent the user from replacing the light source in advance or continuing to use the light source after the service life is exceeded, thereby ensuring the safety of the product.

In one embodiment, the laser light source is provided with a plurality of working levels, and the laser light source correspondingly outputs laser beams with different power values or different power ranges under each working level; Under the working level corresponding to the power range, when it is determined that the power of the laser beam is lower than the preset threshold, information indicating the end of the service life of the laser light source is output. Generally, if the laser light source is set with multiple working levels, even if the laser light source is attenuated due to the use time, it is only necessary to set the laser light source at the working level corresponding to the maximum power value or the maximum power range, and the actual output power of the laser beam If the lighting needs are still met, you can continue to use it. Therefore, in a light source host product with multiple working levels, the power of the laser beam at this time can be detected when the laser light source operates at the working level corresponding to the maximum power value or the maximum power range to judge the service life of the light source. Whether to end, avoid the situation of replacing the light source in advance when the light source can still meet the needs of use when testing under other working levels.

During the use of the light source, the laser light source may be abnormal due to various problems, resulting in the output power not within the control range, or power fluctuations, affecting the use.

In another embodiment, the controller is configured to output alarm information indicating that the laser light source is abnormal when it is determined that the power of the laser beam is not within a preset threshold range, so as to remind the user that the light source is abnormal, and the abnormal light source needs to be resolved as soon as possible before performing the operation. , to ensure the accuracy of the information and the safety of the operation.

Similarly, the abnormality detection of the light source can be performed in a self-checking working mode when the light source host is started, so as to determine the abnormality information of the laser light source. It can also be monitored in real time during the use of the light source host.

In one embodiment, the laser light source is provided with multiple working levels, the laser light source outputs laser beams with different power values or different power ranges corresponding to each working level, and each working level corresponds to a different preset threshold range. Generally, the upper limit value and the lower limit value of the corresponding preset threshold value range are also larger corresponding to a working level of a higher power value or a higher power range. So that when the abnormality of the light source is detected, the preset threshold range for judgment can match different working levels.

In one embodiment, the controller is further configured to feedback control the output power of the laser light source according to the obtained power of the laser beam, so that the power of the laser beam output by the laser light source is within a preset value or a preset range. . Through the feedback control of the light source power, the output power of the laser light source can be made more stable. Specifically, the preset value or preset range can be manually set by the user, and the light source host automatically adjusts the output power of the light source according to the setting to stabilize it within the preset value or preset range. Adjusting the power of the laser light source can be realized by adjusting the driving current of the laser light source.

It should be noted that, in a host with multiple light sources, there may be one or more of the light sources, or even power detection devices are installed on the light beam paths corresponding to all the light sources to detect the power of the light beams output by the corresponding light sources. In the case where multiple light sources are provided with power detection devices, the relevant information generated by the corresponding service life detection and abnormal alarm functions will also distinguish different light sources, so as to facilitate users to distinguish which light source the relevant information belongs to.

The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention, and are not intended to limit the present invention. For those skilled in the art, according to the idea of the present invention, the above-mentioned specific embodiments can be changed.

Claims (19)

1. A light source host for an endoscope camera system, characterized in that it includes a controller, a first light source, a second light source, an optical coupling device, a power detection device and a light source output interface;

   The first light source is configured to generate a first kind of light beam under the control of the controller, and output the first kind of light beam to the first light input end of the optical coupling device through a first optical path;

   The second light source is configured to generate a second kind of light beam under the control of the controller, and output the second kind of light beam to the second light input end of the optical coupling device through a second optical path;

   The optical coupling device includes at least a light-combining lens, and the light-combining lens is used for mixing the first kind of light beam input from the first light input end and the second kind of light beam input from the second light input end. , obtain a combined beam, and output the combined beam through the light source output interface;

   The power detection device is arranged on the optical path of the first kind of light beam, and is used for detecting the power of the first kind of light beam.
2. The light source host according to claim 1, wherein the light combining lens comprises a dichroic mirror.
3. The light source host according to claim 1 or 2, wherein the power detection device is disposed between the first light input end of the optical coupling device and the light combining lens.
4. The light source host according to claim 3, wherein the optical coupling device further comprises a reflecting mirror arranged between the first light input end and a light combining mirror, and the mirror mirror is used to A first kind of light beam input from an optical input end is reflected to the light combining lens, and part of the light of the first kind of light beam is allowed to transmit to the power detection device, so that the power detection device can detect the light based on the transmitted light. The power of the first kind of beam is detected.
5. The light source host according to claim 4, wherein the reflecting mirror is a dichroic mirror.
6. The light source host according to any one of claims 1-5, wherein the power detection device comprises a photoelectric sensor.
7. The light source host according to claim 6, wherein the power detection device further comprises a filter set at the front end of the photoelectric sensor, for attenuating the first type of light beam input to the photoelectric sensor to the photoelectric within the range of the sensor.
8. The light source host according to claim 6 or 7, wherein the photoelectric sensor is biased relative to the incoming first kind of light beam, so as to receive part of the first kind of light beam.
9. The light source host according to any one of claims 1-8, wherein the first light source is a near-infrared light source, and the second light source is a white light source.
10. The light source host according to claim 9, wherein the first light source is a laser light source, and the second light source is an LED light source.
11. The light source host according to any one of claims 1-10, wherein the power detection device is further configured to output the detection result to the controller for processing.
12. The light source host according to claim 11, wherein the controller is further configured to determine the working state of the first light source according to the acquired power of the first type of light beam.
13. The light source host of claim 12, wherein the controller is configured to determine the working state of the first light source according to the acquired power of the first type of light beam, comprising: the controller is configured to determine the When the power of the first type of light beam is lower than the preset threshold, output information indicating the end of the service life of the first light source.
14. The light source host according to claim 13, wherein the first light source is provided with a plurality of working levels, and the first light source outputs a first type with different power values or different power ranges corresponding to each working level. light beam; the controller is configured to, when the first light source operates at a working level corresponding to a maximum power value or a maximum power range, when it is determined that the power of the first type of light beam is lower than a preset threshold, output an output indicating the Information about the end of the service life of the first light source.
15. The light source host according to any one of claims 12-14, wherein the controller is configured to determine the working state of the first light source according to the acquired power of the first type of light beam, comprising: the controller uses When it is determined that the power of the first type of light beam is not within a preset threshold range, an alarm message indicating that the first light source is abnormal is output.
16. The light source host according to claim 15, wherein the first light source is provided with a plurality of working levels, and the first light source outputs a first type of different power values or different power ranges corresponding to each working level. For the light beam, each working level corresponds to a different range of the preset threshold value.
17. The light source host according to any one of claims 12 to 16, wherein the controller is further configured to: when it is determined that the light source host is started, execute a self-check working mode to determine the first light source working status.
18. The light source host according to any one of claims 11 to 17, wherein the controller is further configured to perform feedback control on the output power of the first light source according to the acquired power of the first type of light beam, so as to The power of the first type of light beam output by the first light source is within a preset value or a preset range.
19. An endoscope camera system, characterized in that it includes a light source host, a light guide, an endoscope, an optical bayonet, a communication cable, a camera host, a display, and a video connection as described in any one of claims 1-18 line and endoscope camera, the light source host is connected with the endoscope through the light guide, one end of the endoscope camera is connected with the endoscope through the optical bayonet, the endoscope The other end of the mirror camera is connected to the camera host through the communication cable, and the camera host is connected to the display through the video connection cable.