Gastroscope based on hyperspectral imaging technology and use method thereof

Abstract

The invention discloses a gastroscope based on the hyperspectral imaging technology and a using method of the gastroscope, and relates to the technical field of medical equipment.The gastroscope based on the hyperspectral imaging technology comprises an eyepiece, an insertion tube, a grating light splitting structure and an objective lens, and the objective lens and a first light source output end are arranged at the far end of the insertion tube; a light source is transmitted to the first light source output end, the objective lens transmits reflected light to the eyepiece and the grating light splitting structure, and the grating light splitting structure processes the reflected light and then transmits the reflected light to a computer to obtain a hyperspectral image. The gastroscope based on the hyperspectral imaging technology can obtain hyperspectral images.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a gastroscope based on hyperspectral imaging technology and a use method thereof. Background Art

[0002] Gastroscopy is a commonly used tool for examining stomach diseases. Traditional gastroscopy mainly observes the gastric mucosa, but the image clarity is low and it is unable to observe slight changes on the surface of the gastric mucosa, which may lead to missed diagnosis. Summary of the invention

[0003] The purpose of the present invention is to provide a gastroscope based on hyperspectral imaging technology and a method of using the same, so as to solve the problems existing in the above-mentioned prior art and obtain hyperspectral images.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] The present invention provides a gastroscope based on hyperspectral imaging technology, comprising: an eyepiece, an insertion tube, a grating spectroscopic structure and an objective lens, wherein the objective lens and a first light source output end are arranged at the distal end of the insertion tube, the light source is transmitted to the first light source output end, the objective lens transmits reflected light to the eyepiece and the grating spectroscopic structure respectively, the grating spectroscopic structure processes the reflected light and transmits it to a computer, so as to obtain a hyperspectral image.

[0006] Preferably, the grating spectroscopic structure comprises an incident slit, a reflection grating and an image sensor, the reflected light passes through the incident slit and is irradiated onto the reflection grating, the image sensor is used to detect the reflected light processed by the reflection grating, and the image sensor is connected to the computer.

[0007] Preferably, it further comprises a beam splitter, and the objective lens transmits the reflected light to the eyepiece and the grating beam splitting structure respectively through the beam splitter.

[0008] Preferably, it further comprises an external structure, the eyepiece and the beam splitter are both arranged on the external structure, and the proximal end of the insertion tube is connected to the external structure.

[0009] Preferably, a light source inlet is provided on the external structure, and the light source enters through the light source inlet and is transmitted to the first light source output end through the first optical fiber.

[0010] Preferably, the objective lens transmits the reflected light to the beam splitter through a second optical fiber.

[0011] Preferably, a second light source output end is provided on the external structure, and the optical splitter transmits the reflected light to the second light source output end through a third optical fiber.

[0012] Preferably, the output end of the second light source transmits the reflected light to the grating light splitting structure through a fourth optical fiber.

[0013] Preferably, the image sensor is a CCD image sensor.

[0014] The present invention provides a method for using a gastroscope based on the hyperspectral imaging technology, comprising the following steps:

[0015] Step 1: The first light source output end outputs light to the part to be detected, and the objective lens outputs the reflected light obtained by the light source being reflected by the part to be detected;

[0016] Step 2: Observe the real-time image through the eyepiece; process the reflected light through the grating spectroscopic structure and transmit it to the computer to display the hyperspectral image.

[0017] Compared with the prior art, the present invention has achieved the following technical effects:

[0018] The present invention irradiates the light source from the outside into the stomach through the first light source output end, so that the objective lens can receive the reflected light inside the stomach, and the objective lens derives the light obtained by the light source reflecting through the human stomach, and transmits it to the eyepiece and the grating spectroscopic structure for subsequent operations. The present invention combines hyperspectral imaging technology with traditional gastroscopy, which can more comprehensively understand the physiological and pathological changes of gastric mucosa, and can detect slight changes in the surface of gastric mucosa, including color, texture, etc., which is helpful for early detection of lesions and helps to improve the accuracy and reliability of diagnosis. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of a gastroscope based on the hyperspectral imaging technology of the present invention;

[0021] Figure 2 It is a schematic diagram of the distal end of the insertion tube of the present invention;

[0022] Figure 3 It is a schematic diagram of gastroscope light transmission based on the hyperspectral imaging technology of the present invention;

[0023] In the figure: 100-gastroscope based on hyperspectral imaging technology, 1-eyepiece, 2-external structure, 3-light source entrance, 4-beam splitter, 5-second light source output end, 6-objective lens, 7-first light source output end, 8-insertion tube, 9-grating spectroscopic structure, 10-incident slit, 11-reflection grating, 12-image sensor, 13-computer. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] The purpose of the present invention is to provide a gastroscope based on hyperspectral imaging technology and a method of using the same, so as to solve the problems existing in the above-mentioned prior art and obtain hyperspectral images.

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Embodiment 1

[0028] like Figures 1 to 3 As shown, this embodiment provides a gastroscope 100 based on hyperspectral imaging technology, including: an external structure 2, an eyepiece 1, an insertion tube 8, a beam splitter 4, a grating beam splitting structure 9 and an objective lens 6, the light source inlet 3, the eyepiece 1, the beam splitter 4 and the second light source output end 5 are all arranged on the external structure 2, the light source inlet 3 is in contact with the outside world for passing the light source, the insertion tube 8 is a hose, the proximal end of the insertion tube 8 (referring to the end close to the doctor) is connected to the external structure 2, the distal end of the insertion tube 8 (referring to the end away from the doctor) is provided with an objective lens 6 and a first light source output end 7, the light source is transmitted to the first light source output end 7, and then irradiated on the stomach, the objective lens 6 transmits the reflected light of the stomach to the eyepiece 1 and the grating beam splitting structure 9 respectively after the beam splitter 4 acts, the grating beam splitting structure 9 processes the reflected light and transmits it to the computer 13, so as to obtain a hyperspectral image. The eyepiece 1 transmits the light split by the spectrometer 4, so that medical staff can directly obtain the internal image of the stomach, and the grating spectroscopic structure 9 can obtain monochromatic light of multiple spectral bands, and convert the monochromatic light signals of multiple spectral bands into digital signals with high-spectral information and transmit them to the computer 13. The digital signal is displayed on the display screen, and a richer hyperspectral image of the stomach can be obtained, which can provide more accurate lesion information and assist in diagnosing the patient's condition.

[0029] Specifically, in this embodiment, the grating spectroscopic structure 9 includes an incident slit 10, a reflection grating 11 and an image sensor 12. The incident slit 10 is used to limit stray light. The reflected light after the action of the spectrometer 4 passes through the incident slit 10 and is irradiated on the reflection grating 11. The reflection grating 11 realizes wavelength separation through reflection and diffraction to obtain monochromatic light of multiple spectral bands. The image sensor 12 is used to detect the reflected light processed by the reflection grating 11. The image sensor 12 is a CCD image sensor. The image sensor 12 converts the received monochromatic light signals of multiple spectral bands into digital signals with hyperspectral information. The image sensor 12 is connected to the computer 13 and transmits the digital signal to the computer 13 through a data line. The digital signal displays the hyperspectral image on the display screen to finally obtain the hyperspectral image.

[0030] In this embodiment, the light source enters through the light source entrance 3 and is transmitted to the first light source output end 7 through the first optical fiber. The objective lens 6 transmits the reflected light to the beam splitter 4 through the second optical fiber. The first optical fiber and the second optical fiber are located in the insertion tube 8. The beam splitter 4 transmits the reflected light to the second light source output end 5 through the third optical fiber. The second light source output end 5 transmits the reflected light to the grating splitting structure 9 through the fourth optical fiber.

[0031] In the present invention, a grating spectroscopic structure 9 and an image sensor 12 are used to obtain hyperspectral image information of the gastric mucosa, so that medical staff can obtain more and more accurate lesion information when using a gastroscope for diagnosis. The present invention retains the structure of a traditional gastroscope and is easy to operate. The spectroscope 4 is used to split the light reflected from the stomach received by the objective lens 6 at the distal end of the gastroscope, and one beam of light is transmitted to the eyepiece 1, and one beam of light is transmitted to the grating spectroscopic structure 9. Medical staff can obtain both real-time visible light gastroscope images through the eyepiece 1 and hyperspectral images with richer lesion information to assist in diagnosis.

[0032] Embodiment 2

[0033] This embodiment provides a method for using the gastroscope 100 based on the hyperspectral imaging technology of the first embodiment, comprising the following steps:

[0034] Step 1, connect the second light source output end 5 to the grating spectroscopic structure 9, connect the signal output end of the image sensor 12 to the signal input end of the computer 13 through a data line, turn on the image sensor 12 and the computer 13, insert the insertion tube 8 into the gastrointestinal part of the patient and move it, the light source is output to the part to be detected through the light source inlet 3, the first optical fiber and the first light source output end 7, the objective lens 6 outputs the reflected light obtained by the light source reflected from the part to be detected to the spectrometer 4 through the second optical fiber, and the spectrometer 4 transmits the reflected light to the eyepiece 1 and the second light source output end 5 respectively;

[0035] Step 2: observe the real-time image through the eyepiece 1; process the reflected light through the grating spectroscopic structure 9 and transmit it to the computer 13, so that the hyperspectral image can be displayed on the display screen to obtain richer lesion information.

[0036] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A gastroscope based on hyperspectral imaging technology, characterized in that: include: An eyepiece, an insertion tube, a grating spectroscopic structure and an objective lens. The objective lens and a first light source output end are arranged at the distal end of the insertion tube. The light source is transmitted to the first light source output end. The objective lens transmits the reflected light to the eyepiece and the grating spectroscopic structure respectively. The grating spectroscopic structure processes the reflected light and transmits it to a computer to obtain a hyperspectral image.

2. The gastroscope based on hyperspectral imaging technology according to claim 1, characterized in that: The grating spectroscopic structure includes an incident slit, a reflection grating and an image sensor. The reflected light passes through the incident slit and is irradiated on the reflection grating. The image sensor is used to detect the reflected light processed by the reflection grating. The image sensor is connected to the computer.

3. The gastroscope based on hyperspectral imaging technology according to claim 1, characterized in that: It also includes a beam splitter, and the objective lens transmits the reflected light to the eyepiece and the grating beam splitting structure respectively through the beam splitter.

4. The gastroscope based on hyperspectral imaging technology according to claim 3, characterized in that: It also includes an external structure, the eyepiece and the beam splitter are both arranged on the external structure, and the proximal end of the insertion tube is connected to the external structure.

5. The gastroscope based on hyperspectral imaging technology according to claim 4, characterized in that: The external structure is provided with a light source entrance, through which the light source enters and is transmitted to the first light source output end through the first optical fiber.

6. The gastroscope based on hyperspectral imaging technology according to claim 3, characterized in that: The objective lens transmits the reflected light to the beam splitter through a second optical fiber.

7. The gastroscope based on hyperspectral imaging technology according to claim 4, characterized in that: The external structure is provided with a second light source output end, and the optical splitter transmits the reflected light to the second light source output end through a third optical fiber.

8. The gastroscope based on hyperspectral imaging technology according to claim 7, characterized in that: The output end of the second light source transmits the reflected light to the grating light splitting structure through a fourth optical fiber.

9. The gastroscope based on hyperspectral imaging technology according to claim 2, characterized in that: The image sensor is a CCD image sensor.

10. A method for using a gastroscope based on hyperspectral imaging technology according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: The first light source output end outputs light to the part to be detected, and the objective lens outputs the reflected light obtained by the light source being reflected by the part to be detected; Step 2: Observe the real-time image through the eyepiece; process the reflected light through the grating spectroscopic structure and transmit it to the computer to display the hyperspectral image.

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