CN217390670U - Endoscope device with polarized light source - Google Patents

Abstract

An endoscope device with a polarized light source, wherein the light source outputs white light and/or polarized light, and a camera collects a returned light signal formed after the white light and/or polarized light is directed to an observation area, and converts the returned light signal into an electrical signal, The image processing system outputs white light image data or polarized light image data; thus, the light source of the present invention integrates a white light source and a polarized light source, so that it can also perform polarized light endoscopy imaging while satisfying white light endoscopic imaging , realizing that the same endoscope device is suitable for both white light source and polarized light source.

Description

Endoscopic device with polarized light source

technical field

The present application relates to the technical field of endoscopes, and in particular, to an endoscope device with a polarized light source.

Background technique

Endoscope is a medical electronic optical instrument that can be inserted into human body cavity and visceral cavity for direct observation, diagnosis and treatment. Carry out optical imaging, then send the optical imaging to the image processing host, and finally output the observation image after image processing on the display screen for the doctor to observe and diagnose.

At present, most of the light sources of endoscopes on the market are single white light sources or near-infrared medical cold light sources for fluorescence imaging. In the surgical environment with bloody water, turbid water, small tissue debris, and fog, clear imaging cannot be output. Unclear imaging will interfere with the doctor during the operation, and sometimes the interfering environment (blood water, turbid water, The operation can only be performed after tissue dust and mist), resulting in lower operation efficiency.

To sum up, the existing endoscopic devices cannot fully meet the requirements of multi-light source imaging.

Utility model content

The present application provides an endoscope device with a polarized light source, the light source of which can output white light and/or polarized light, so as to satisfy the polarized light imaging of the endoscope device, and realize that the same endoscope device is suitable for both white light source and polarized light light source.

According to an aspect of the present application, an embodiment provides an endoscope device with a polarized light source, including:

a light source for outputting illuminating light and emitting it to the observation area; wherein, the illuminating light is white light and/or polarized light;

A camera connected to the light source is used to collect the return light signal formed after the illumination light radiates to the observation area, convert the return light signal into an electrical signal and output it to the image processing system; wherein, the The return light signal is the return light signal of the white light and/or the return light signal of the polarized light;

an image processing system connected to the camera, for outputting image data corresponding to the electrical signal; wherein the image data is the white light image data and/or the polarized light image data

In one embodiment, the light source includes: a white light source and a white light-to-polarization light module;

The white light source is used to output one channel of white light, and the one channel of white light is directed to the white light-to-polarization module; or, the white light source is used to output two channels of white light, and one channel of white light is directed to the observation area. , and send another white light to the white light to polarized light module;

The white light-to-polarization module is connected to the white light source, and is used for converting the white light into polarized light and emitting the polarized light toward the observation area.

In one embodiment, it also includes:

The human-computer interaction module provided in the image processing system is used for the user to select the light source type of the image data displayed by the endoscope device; wherein, the light source type of the image data includes a white light source and a polarized light source .

In one embodiment, the camera includes: an optical bayonet and a polarized light sensor;

the optical bayonet is used for converging the returned light signal to the polarized light sensor;

The polarized light sensor connected to the optical bayonet is used for collecting the returned light signal and outputting an electrical signal corresponding to the light source type selected by the user.

In one embodiment, the image processing system includes:

a first image processor connected to the camera for outputting the white light image data;

A second image processor connected to the camera is configured to output the polarized light image data.

In one embodiment, it also includes:

a first display connected to the first image processor for displaying the white light image data;

a second display connected to the second image processor for displaying the polarized light image data.

In one embodiment, the white light-to-polarization light module is a white light-to-polarization light module with 4 different polarization angles, and the polarization angles include 0°, 45°, 90°, and 135°.

In one embodiment, the white light-to-polarization module includes a polarizer, and the polarizer is used to convert the white light into the polarized light.

In one embodiment, it also includes:

The wireless transmission module arranged in the image processing system is used for data interaction between the image processing system and an external mobile terminal.

In an embodiment, it is characterized in that, it also includes:

A power supply module arranged in the image processing system is used to supply power to each module of the endoscope apparatus.

According to the endoscope device with a polarized light source according to the above embodiment, the light source outputs white light and/or polarized light, and the camera collects the returned light signal formed after the white light and/or polarized light is directed to the observation area, and converts the returned light signal into electric signal, the image processing system outputs white light image data or polarized light image data; thus, the light source of the present utility model integrates white light and polarized light, so that it can also perform polarized light endoscopy while satisfying the imaging of white light endoscopy The mirror imaging realizes that the same endoscopic device is suitable for both white light source and polarized light source.

Description of drawings

1 is a schematic structural diagram of an endoscope device with a polarized light source according to an embodiment;

FIG. 2 is a schematic diagram of the specific structure of the endoscope device shown in FIG. 1;

FIG. 3 is a schematic diagram of the physical structure of the endoscope device shown in FIG. 2 in an application environment.

Detailed ways

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

In addition, the features, operations or features described in the specification can be combined in any appropriate manner to form various embodiments, and the operation steps involved in each embodiment can also be sequentially exchanged or adjusted in a manner obvious to those skilled in the art . Therefore, the specification and drawings are only for the purpose of clearly describing a certain embodiment and do not imply a required composition and/or order.

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).

Please refer to FIG. 1 . FIG. 1 is a schematic structural diagram of an endoscope device having a polarized light source according to an embodiment, hereinafter referred to as an endoscope device. The endoscope apparatus provided in this embodiment includes a light source 100 , a camera 200 and an image processing system 300 . The light source 100 and the camera 200 are connected by a light guide cable, and the camera 200 and the image processing system 300 are connected by an image transmission cable.

The light source 100 is used to output illumination light to the observation area, wherein the illumination light includes white light and/or polarized light. In other words, the light source 100 can simultaneously output white light and polarized light, and can output polarized light or white light independently. In normal use, the endoscopic device can use white light as the light source for endoscopic imaging. However, in some special application scenarios, for example, when there is blood, turbid water, tissue debris, fog, etc. in the observation area, Using polarized light as the light source for endoscopic imaging, a clearer image can be obtained.

Referring to FIG. 2 , in one embodiment, the light source 100 includes: a white light source 101 and a white light converting polarization module 102 . The white light source 101 is used to output one channel of white light, and one channel of white light is directed to the white light converting polarizer module 102; or, the white light source 101 is used to output two channels of white light, one channel of white light is directed to the observation area, and the other channel of white light is directed to the observation area. The white light-to-polarization light module 102 . The white light-to-polarization module 102 is used to convert the white light into polarized light, and send the polarized light to the observation area. The white light source 101 in this embodiment may be the natural light of the external environment. Since the image data under white light imaging can image the observation area normally, and the image data under polarized light imaging can realize imaging in the underwater environment (blood water, turbid water, tissue debris, fog), therefore, the image provided by this embodiment The light source in the endoscopic device provides white light and polarized light, and fulfills the requirements of endoscopic imaging of various light sources.

In this embodiment, the white light-to-polarization module 102 is a white-to-polarization module with four different polarization angles, wherein the polarization angles include 0°, 45°, 90°, and 135°. In one embodiment, the white light-to-polarization module 102 may be polarizers with different polarization angles, and the white light will form polarized light with corresponding polarization angles after passing through the polarizers with different polarization angles. Specifically, the white light-to-polarization module 102 may be a mechanical structure that integrates polarizers with different polarization angles, and realizes the conversion of polarized lights with different polarization angles by switching the positions of the polarizers.

The camera 200 is used to collect the return light signal formed after the white light and/or polarized light is directed to the observation area, convert the return light signal into an electrical signal and output it to the image processing system; wherein the return light signal includes the return light of the white light The signal and/or the return light signal of polarized light.

The camera 200 in this embodiment includes an optical path system composed of various optical mirrors and a polarized light sensor 202, which provide an optical path for the white light and/or polarized light generated by the light source 100 to be directed toward the observation area. To form a return light signal, the above-mentioned optical path system further includes an optical bayonet 201, and the optical bayonet 201 provides an optical path for the return light signal, which can guide the return light signal to the polarized light sensor 202 in the camera 200 to collect the light field of the return light signal within the range. In this embodiment, the return light signal collected by the polarized light sensor 202 includes white light and/or polarized light return light signals, and it processes the collected one return light signal, that is, the polarized light sensor 202 outputs only one return light signal corresponding electrical signal. For example, if the return light signal collected by the polarized light sensor 202 only includes the return light signal corresponding to the polarized light, the return light signal corresponding to the polarized light can be directly processed; for another example: the return light signal collected by the polarized light sensor 202 also includes For the return light signal of white light and the return light signal of polarized light, according to the light source type selected by the user, one of the return light signal of white light and the return light signal of polarized light is selected for processing.

The image processing system 300 is used for outputting image data corresponding to the electrical signal; wherein, the image data is white light image data or polarized light image data. In this embodiment, the white light image data is image data corresponding to the return light signal of the white light, and the polarized light image data is image data corresponding to the return light signal of the polarized light. The image processing system 300 in this embodiment is a host with an image processing function, which can be connected to a display and output image data to the display for connection.

The image processing system 300 in this embodiment further includes a human-computer interaction module 303, which is used for the user to select the light source type of the image data displayed by the endoscope device; wherein, the image data types include white light image data and polarized light image data. The human-computer interaction module 303 is arranged on a button assembly outside the housing of the image processing system 300, which can output a light source type selection signal to the image processing system 300 and the polarized light sensor 202 under the triggering of the button assembly, and the image processing system 300 and the polarized light sensor 202 The light sensor 202 controls the endoscope apparatus to process the corresponding return light signal according to the light source type selection signal. The image processing system 300 includes a first image processor 301 and a second image processor 302. The first image processor 301 is used for outputting white light image data, and the second image processor 302 is used for outputting polarized light image data. The key components in this embodiment may be physical keys or virtual keys on the display screen.

In addition, the human-computer interaction module 303 in this embodiment is also used for the user to select and switch other functions of the endoscope, which can be triggered by different buttons on the button assembly according to different function types. The collected and processed image data performs functions such as screenshot, freezing, and video recording, and each button on the key assembly triggers the endoscope device to complete the corresponding function when pressed.

In this embodiment, the first image processor 301 and the second image processor 302 respectively process the received electrical signals based on the existing image processing algorithms, so as to obtain image data for the doctor's diagnosis. Because the detail information contained in the white light image data and the polarized light image data is different, for example, the white light image data will contain the RGB information of the image, and the polarized light image data will contain the polarization information of the image, so the first image processor 301 and the second image The image processing algorithms employed by the processor 302 are also different. In an embodiment, the image processing algorithm adopted by the first image processor 301 includes at least an image contrast enhancement algorithm, an image color restoration processing algorithm, and the like. The second image processor 302 needs to process the polarized light image data through blood water, fog removal, and turbidity. For example, an existing neural network related algorithm can be used to process the polarized light image data to remove blood water, fog, turbidity, etc. In addition, the second image processor 302 also uses existing image processing algorithms such as image contrast enhancement and image color restoration processing to process the image data to obtain clear image data. It should be noted that the image processing algorithms involved in the first image processor 301 and the second image processor 302 in this embodiment are all existing image processing algorithms in existing endoscope devices, and this embodiment does not use the same A detailed description of its algorithm principle.

In one embodiment, when the output light source type selection signal is a white light source, the polarized light sensor 202 only processes the returned light signal of the collected white light, and outputs the corresponding electrical signal to the first image processor 301 to obtain White light image data. In another embodiment, when the output light source type selection signal is a polarized light source, the polarized light sensor 202 only processes the returned light signal of the polarized light collected by the polarized light sensor 202, and outputs the corresponding electrical signal to the second image processor 302, to obtain polarized light image data.

As shown in FIG. 2 , the endoscope apparatus provided in this embodiment further includes: a first display 401 and a second display 402 .

In this embodiment, two display cables are used to connect the image processing system 300 to the first display 401 and the second display 402 respectively. The first display 401 is used to display white light image data, and the second display is used to display polarized light image data. In the embodiment, the first display that displays the white light image data may be used as the main screen, and the second display that displays the polarized light image data may be used as the secondary screen.

In another embodiment, a display cable may also be used to connect the image processing system 300 to a display, in which the white-light image data and the polarized-light image data are displayed in sub-regions in a split-screen display manner, specifically , the display interface in the display includes a first display frame and a second display frame, the first display frame is used for displaying white light image data, and the second display frame is used for displaying polarized light image data. Optionally, the first display frame and the second display frame may be in a set-frame manner, that is, the screen is split within the screen. For example, the first display frame is a square screen that matches the display screen, and the second display frame is set in the first display frame. A circular screen within the preset area.

In this embodiment, the endoscope apparatus further includes a wireless transmission module and a power supply module, the wireless transmission module is connected to the output end of the image processing system 300 , and the wireless transmission module 501 is used for the image processing system 300 to perform data transmission with the external mobile terminal 500 . interact, and transmit the white light image data and the polarized light image data to the external mobile terminal 500 for display and/or storage. In this way, the image output by the endoscope apparatus can be directly viewed through a mobile terminal, and the mobile terminal in this embodiment includes, but is not limited to, a smart phone, a tablet computer, and the like. The power module is used to convert the commercial power into the direct voltage required by the endoscope device, and supply power to each module of the endoscope device.

In this embodiment, FIG. 3 shows a schematic structural diagram of the endoscope device provided in this embodiment in an application environment, wherein the light source 100 and the camera 200 are connected by a light guide cable 600. This embodiment provides The light source 100 can output white light and/or polarized light, and the camera 200 includes an endoscopic probe. By placing the endoscopic probe in the corresponding observation area, the endoscopic imaging of the observation area is realized. The camera 200 and the image processing system 300 The image processing system 300 is connected to the first display 401 and the second display 402 through the communication cable respectively, and the first display 401 and the second display 402 are used to display the image data corresponding to the observation area. The first display 401 is a main display for displaying white light image data, and a second display 402 is a secondary display for displaying polarized light image data. The endoscope apparatus in this embodiment further includes a mobile terminal 500, which communicates with the image processing system 300. A wireless communication connection is made to realize interaction with the image processing system 300 .

The above uses specific examples to illustrate the present invention, which is only used to help the understanding of the present invention, and is not intended to limit the present invention. For those skilled in the technical field to which the present invention pertains, according to the idea of the present invention, some simple deductions, deformations or substitutions can also be made.

Claims (10)

1. An endoscopic device having a polarized light source, comprising:

a light source for outputting illumination light and emitting the illumination light to an observation area; wherein the illuminating light is white light and/or polarized light;

the camera is connected with the light source and used for collecting a return light signal formed after the illumination light irradiates to an observation area, converting the return light signal into an electric signal and outputting the electric signal to an image processing system; wherein the return light signal is a return light signal of the white light and/or a return light signal of the polarized light;

the image processing system is connected with the camera and is used for outputting image data corresponding to the electric signals; wherein the image data is the white light image data and/or the polarized light image data.

2. The endoscopic device of claim 1 wherein said light source comprises: a white light source and a white light-to-polarization light conversion module;

the white light source is used for outputting a path of white light and transmitting the path of white light to the white light-to-polarization-conversion light module; or the white light source is used for outputting two paths of white light, one path of white light is emitted to the observation area, and the other path of white light is emitted to the white light-to-polarization-conversion light module;

the white light-to-polarized light module is connected to the white light source and used for converting the white light into polarized light and emitting the polarized light to an observation area.

3. The endoscopic device of claim 1 further comprising:

the human-computer interaction module is arranged on the image processing system and used for enabling a user to select the light source type of the image data displayed by the endoscope device; wherein the light source types of the image data include a white light source and a polarized light source.

4. The endoscopic device of claim 3, wherein the camera head comprises: an optical bayonet and a polarized light sensor;

the optical bayonet is used for converging the return light signal to the polarized light sensor;

and the polarized light sensor is connected to the optical bayonet and used for collecting the return light signal and outputting an electric signal corresponding to the light source type selected by the user.

5. An endoscopic device as defined in claim 3, wherein the image processing system comprises:

the first image processor is connected with the camera and used for outputting the white light image data;

and the second image processor is connected with the camera and used for outputting the polarized light image data.

6. The endoscopic device of claim 5 further comprising:

a first display coupled to the first image processor for displaying the white light image data;

and the second display is connected with the second image processor and is used for displaying the polarized light image data.

7. The endoscopic device of claim 1, wherein the white light to polarization light module is a white light to polarization light module having 4 different polarization angles, the polarization angles comprising 0 °, 45 °, 90 °, and 135 °.

8. The endoscopic device of claim 7 wherein said white light to polarized light module comprises a polarizer for converting said white light to said polarized light.

9. The endoscopic device of claim 1 further comprising:

and the wireless transmission module is arranged in the image processing system and is used for data interaction between the image processing system and an external mobile terminal.

10. The endoscopic device of claim 1 further comprising:

and the power supply module is arranged in the image processing system and used for supplying power to each module of the endoscope device.

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