A portable subcutaneous small vessel imaging and blood flow detection system

Abstract

The utility model relates to medical instrument technical field, concretely is a portable subcutaneous small blood vessel imaging and blood flow detection system, including handheld detection part with handle and detection machine body with portable handle, wherein: the handheld detection part is provided with near infrared laser and white light emission unit, light path fourfold filter unit, signal acquisition device, handheld device signal transmission and power supply circuit, heat dissipation unit, be provided with host computer system, laser emission controller, power module on the detection machine body. The utility model has the characteristics such as strong portability, blood supply information multidimensional acquisition and data real -time visualization, can satisfy to the processing and analysis of the collected contrast medium fluorescence information, near infrared blood flow information and visible light tissue information, generate intuitive, clear vascular morphology image and detailed blood flow information, can provide guiding information for doctor, reduce the operation risk, improve patient cure rate.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a portable subcutaneous small blood vessel imaging and blood flow detection system. Background Technology

[0002] Good tissue blood perfusion is crucial for the success of surgical procedures, especially in burn and plastic surgery. Firstly, in repairing surface defects caused by trauma, tumors, infection, radiotherapy, or surgery, transferring a healthy skin flap from the surrounding area or another part of the body to cover the defect is a commonly used surface repair technique. Observing flap blood perfusion is important for plastic surgeons in determining flap vascular anatomy, designing surgical plans, and monitoring flap blood supply intraoperatively and postoperatively. Secondly, in cases of limb necrosis and circulatory disorders caused by various reasons (such as high-voltage electrical burns), clinicians often need to determine whether amputation is indicated. Indicators affecting this judgment include the degree of damage to muscles, tendons, nerves, bone tissue, and blood vessels. Among these, vascular patency and the amount of remaining perfused soft tissue are key to limb preservation. Furthermore, postoperative care in flap surgery requires regular monitoring and assessment of flap blood supply and the occurrence of other surgical complications. Therefore, a system for real-time and accurate vascular imaging and blood flow detection of subcutaneous blood vessels is particularly important for the treatment and prognosis of relevant patients.

[0003] Currently, clinical assessment of a patient's blood supply status primarily relies on manual, timed checks. For example, pressing on tissues is used to determine capillary reaction time, but this method has many limitations. Differences in the techniques, pressure, and judgment standards of different operators result in a lack of standardized and clear quantitative indicators, making it impossible to accurately determine the specific patency of blood vessels, let alone achieve real-time dynamic monitoring of vascular distribution. At the same time, existing commercially available testing instruments also have significant shortcomings. These instruments are generally bulky, limiting their convenience and flexibility in clinical use. Furthermore, their functions are relatively limited, typically acquiring only limited blood supply information and failing to simultaneously collect and analyze multi-dimensional data such as vascular morphology and blood flow velocity, thus failing to meet the urgent clinical need for real-time, comprehensive, and accurate observation of blood supply status. Utility Model Content

[0004] To address the aforementioned technical problems, this invention proposes a portable subcutaneous small vessel imaging and blood flow detection system. It can detect the morphology and blood perfusion of subcutaneous vessels in patient tissues in real time and with high accuracy. By visually displaying a patient's detailed blood supply status, it provides crucial guidance for doctors to formulate scientific and reasonable treatment plans, thereby effectively reducing surgical risks and improving treatment outcomes.

[0005] The technical problem to be solved by this utility model is achieved by the following technical solution:

[0006] A portable subcutaneous small vessel imaging and blood flow detection system, comprising:

[0007] A handheld detection unit with a handle is used to collect vascular information from the tissue to be tested;

[0008] The detection unit has a portable handle for processing information and providing power.

[0009] in:

[0010] The handheld detection unit is equipped with a near-infrared laser and white light emitting unit, a four-stage optical path filtering unit, a signal acquisition device, a handheld device signal transmission and power supply line, and a heat dissipation unit. The near-infrared laser and white light emitting unit, the signal acquisition device, and the heat dissipation unit are all connected to the handheld device signal transmission and power supply line. The output end of the four-stage optical path filtering unit is connected to the signal acquisition device. A light shield is provided in front of the input end of the near-infrared laser and white light emitting unit and the four-stage optical path filtering unit.

[0011] The detection unit is equipped with a host computer system, a laser emission controller, and a power supply module. The handheld device's signal transmission and power supply lines are respectively connected to the host computer system, the laser emission controller, and the power supply module. The host computer system and the laser emission controller are connected to the power supply module.

[0012] As a further improvement of this utility model, the handheld device signal transmission and power supply line includes a heat dissipation unit power supply line, an optical fiber, a CCD common power supply line, a first CCD camera signal transmission line, a second CCD camera signal transmission line, a third CCD camera signal transmission line, and a white light power supply line.

[0013] The power supply lines of the heat dissipation unit are connected to the heat dissipation unit and the power supply module, respectively. The optical fiber is connected to the near-infrared laser and white light emitting unit and the laser emission controller, respectively. The CCD common power supply line is connected to the signal acquisition device and the power supply module, respectively. The first CCD camera signal transmission line, the second CCD camera signal transmission line, and the third CCD camera signal transmission line are all connected to the signal acquisition device and the host computer system, respectively. The white light power supply line is connected to the near-infrared laser and white light emitting unit and the power supply module, respectively.

[0014] As a further improvement of this utility model, the near-infrared laser and white light emitting unit includes a near-infrared laser emitting module, a beam expander, and a white light emitting unit. The near-infrared laser emitting module is connected to the optical fiber, the beam expander is disposed in front of the input end of the near-infrared laser emitting module, and the white light emitting unit is connected to the white light power supply line.

[0015] As a further improvement of this utility model, the size of the near-infrared laser emitting module is 785nm.

[0016] As a further improvement of this utility model, the signal acquisition device includes a first CCD camera, a second CCD camera, a third CCD camera, a first CCD camera fixed-focus lens connected to the first CCD camera, a second CCD camera fixed-focus lens connected to the second CCD camera, and a third CCD camera fixed-focus lens connected to the third CCD camera. The first CCD camera is connected to the first CCD camera signal transmission line, the second CCD camera is connected to the second CCD camera signal transmission line, and the third CCD camera is connected to the third CCD camera signal transmission line.

[0017] As a further improvement of this utility model, the optical path quadruple filtering unit includes a first bandpass two-way beam splitter, a short-pass filter, a second bandpass two-way beam splitter, a visible light reflector, and a plane lens. The first bandpass two-way beam splitter is disposed at the front end of the first CCD camera fixed-focus lens, the short-pass filter and the second bandpass two-way beam splitter are disposed at the front end of the second CCD camera fixed-focus lens, the visible light reflector is disposed at the front end of the third CCD camera fixed-focus lens, and the plane lens is disposed at the front end of the first bandpass two-way beam splitter.

[0018] As a further improvement of this utility model, the size of the first bandpass two-way beam splitter is 820nm, the size of the short-pass filter is 785nm, and the size of the second bandpass two-way beam splitter is 785nm.

[0019] As a further improvement of this utility model, the host computer system is provided with a host computer power supply line, which is connected to the power supply module.

[0020] As a further improvement of this utility model, the laser emission controller is provided with a display screen, a laser switch button, a laser power adjustment button, and a controller power supply line, which is connected to the power supply module.

[0021] As a further improvement of this utility model, the power supply module is provided with a power supply module switch and a power supply module transmission line, and the power supply module transmission line is connected to a plug.

[0022] The beneficial effects of this utility model are:

[0023] This invention provides a portable subcutaneous small vessel imaging and blood flow detection system, characterized by its high portability, multi-dimensional acquisition of blood flow information, and real-time data visualization. Through the inclusion of near-infrared laser and white light emitting units, a quadruple optical path filtering unit, and a signal acquisition device, it can process and analyze the acquired contrast agent fluorescence information, near-infrared blood flow information, and visible light tissue information. This generates intuitive and clear vascular morphology images and detailed blood flow information, which are displayed in real-time to doctors for convenient viewing and analysis. This provides doctors with guidance, reduces surgical risks, and improves patient cure rates. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the near-infrared laser and white light emitting unit and the optical path quadruple filtering unit of this utility model.

[0027] In the picture:

[0028] 1. Handheld detection unit; 11. Near-infrared laser and white light emitting unit; 111. Near-infrared laser emitting module; 112. Beam expander; 113. White light emitting unit; 12. Optical path quadruple filtering unit; 121. First bandpass two-way beam splitter; 122. Short-wave pass filter; 123. Second bandpass two-way beam splitter; 124. Visible light reflector; 125. Planar mirror; 13. Signal acquisition device; 131. First CCD camera; 132. Second CCD camera; 133. Third CCD camera; 134. ... 135. Fixed-focus lens for a CCD camera; 136. Fixed-focus lens for a second CCD camera; 137. Fixed-focus lens for a third CCD camera; 14. Signal transmission and power supply circuit for the handheld device; 148. Power supply circuit for the heat dissipation unit; 149. Optical fiber; 140. Common power supply circuit for CCDs; 141. Signal transmission circuit for the first CCD camera; 142. Signal transmission circuit for the second CCD camera; 143. Signal transmission circuit for the third CCD camera; 144. White light power supply circuit; 15. Heat dissipation unit; 16. Lens hood; 17. Handle;

[0029] 2. Testing unit; 21. Host computer system; 211. Host computer power supply line; 22. Laser emission controller; 221. Display screen; 222. Laser switch button; 223. Laser power adjustment button; 224. Controller power supply line; 23. Power supply module; 231. Power supply module switch; 232. Power supply module transmission line; 233. Plug; 24. Portable handle. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0031] like Figure 1 and Figure 2 As shown, a portable subcutaneous small blood vessel imaging and blood flow detection system mainly includes a handheld detection unit 1 for collecting vascular information of the tissue to be tested and a detection body 2 for processing information and providing power.

[0032] in:

[0033] The handheld detection unit 1 is equipped with a near-infrared laser and white light emitting unit 11, a quadruple optical path filtering unit 12, a signal acquisition device 13, a handheld device signal transmission and power supply line 14, a heat dissipation unit 15, a light shield 16, and a handle 17. The near-infrared laser and white light emitting unit 11, the signal acquisition device 13, and the heat dissipation unit 15 are all connected to the handheld device signal transmission and power supply line 14. The output end of the quadruple optical path filtering unit 12 is connected to the signal acquisition device 13. A light shield 16 is provided in front of the input ends of the near-infrared laser and white light emitting unit 11 and the quadruple optical path filtering unit 12. The light shield 16 can effectively shield external stray light interference, providing a good environment for signal acquisition. The heat dissipation unit 15 is used to ensure that the system maintains stable performance during long-term operation. The handle 17 is ergonomically designed, allowing operators to hold and operate the equipment more comfortably and conveniently.

[0034] The detection unit 2 is equipped with a host computer system 21, a laser emission controller 22, a power supply module 23, and a portable handle 24. The handheld device's signal transmission and power supply lines 14 are respectively connected to the host computer system 21, the laser emission controller 22, and the power supply module 23, and the host computer system 21 and the laser emission controller 22 are connected to the power supply module 23. The portable handle 24 is directly connected to the outer shell of the detection unit 2, making it easy to carry.

[0035] As a further improvement to this embodiment, the handheld device signal transmission and power supply line 14 includes a heat dissipation unit power supply line 141, an optical fiber 142, a CCD common power supply line 143, a first CCD camera signal transmission line 144, a second CCD camera signal transmission line 145, a third CCD camera signal transmission line 146, and a white light power supply line 147. The heat dissipation unit power supply line 141 is connected to the heat dissipation unit 15 and the power supply module 23, respectively, to provide power to the heat dissipation unit 15 and ensure that the handheld detection unit 1 maintains a suitable temperature during operation. The optical fiber 142 is connected to the near-infrared laser and white light emitting unit 11 and the laser emission controller 22, respectively, to ensure precise control of the laser energy output. The CCD common power supply line 143 is connected to the signal acquisition device 13 and the power supply module 23 respectively. The first CCD camera signal transmission line 144, the second CCD camera signal transmission line 145, and the third CCD camera signal transmission line 146 are all connected to the signal acquisition device 13 and the host computer system 21 respectively. The white light power supply line 147 is connected to the near-infrared laser and white light emitting unit 11 and the power supply module 23 respectively.

[0036] As a further improvement of this embodiment, the near-infrared laser and white light emitting unit 11 includes a near-infrared laser emitting module 111, a beam expander 112, and a white light emitting unit 113. The near-infrared laser emitting module 111 is connected to the optical fiber 142, the beam expander 112 is disposed in front of the input end of the near-infrared laser emitting module 111, and the white light emitting unit 113 is connected to the white light power supply line 147.

[0037] Furthermore, the near-infrared laser emitting module 111 has a size of 785nm. The near-infrared laser emitting module 111 can stably output near-infrared laser light with a wavelength of 785nm. After processing by the beam expander 112, the laser light is uniformly irradiated onto the tissue area to be tested, effectively expanding the irradiation range and enhancing the excitation effect of the contrast agent. The white light emitting unit 113 emits visible light of a specific wavelength, providing multi-dimensional information for detection.

[0038] As a further improvement to this embodiment, the signal acquisition device 13 includes a first CCD camera 131, a second CCD camera 132, a third CCD camera 133, a first CCD camera fixed-focus lens 134 connected to the first CCD camera 131, a second CCD camera fixed-focus lens 135 connected to the second CCD camera 132, and a third CCD camera fixed-focus lens 136 connected to the third CCD camera 133. The first CCD camera 131 is connected to the first CCD camera signal transmission line 144, the second CCD camera 132 is connected to the second CCD camera signal transmission line 145, and the third CCD camera 133 is connected to the third CCD camera signal transmission line 146.

[0039] Furthermore, the three fixed-focus lenses in front of the three CCD cameras can accurately capture signals of the required wavelengths. Specifically, the first CCD camera 131 is used to acquire the fluorescence signal of the contrast agent in the blood vessel; the second CCD camera 132 is used to acquire the speckle signal of blood flow under near-infrared laser irradiation; and the third CCD camera 133 is used to acquire the image signal reflected from tissue under visible light irradiation. These signals are transmitted quickly and accurately to the host computer system 21 for subsequent processing via their respective signal transmission lines.

[0040] As a further improvement to this embodiment, the optical path quadruple filtering unit 12 includes a first bandpass two-way beam splitter 121, a short-pass filter 122, a second bandpass two-way beam splitter 123, a visible light reflector 124, and a plane mirror 125. The first bandpass two-way beam splitter 121 is disposed at the front end of the first CCD camera fixed-focus lens 134, the short-pass filter 122 and the second bandpass two-way beam splitter 123 are disposed at the front end of the second CCD camera fixed-focus lens 135, the visible light reflector 124 is disposed at the front end of the third CCD camera fixed-focus lens 136, and the plane mirror 125 is disposed at the front end of the first bandpass two-way beam splitter 121.

[0041] Furthermore, the first bandpass dichroic beam splitter 121 has a size of 820 nm, the short-pass filter 122 has a size of 785 nm, and the second bandpass dichroic beam splitter 123 has a size of 785 nm.

[0042] Through a well-designed optical system, light signals of different wavelengths are efficiently filtered and separated, ensuring that only specific wavelengths of light signals enter the corresponding acquisition unit, thus guaranteeing the accuracy and reliability of simultaneous acquisition of multi-dimensional signals. Simultaneously, the planar lens 125 effectively blocks dust and other impurities from entering the optical path system without affecting the optical energy, ensuring its long-term stable operation.

[0043] As a further improvement to this embodiment, the host computer system 21 is equipped with image processing software. Through three sets of signal transmission lines, it can acquire and process vascular information from the handheld detection unit 1. It processes and analyzes the collected contrast agent fluorescence information, near-infrared blood flow information, and visible light tissue information to generate intuitive and clear vascular morphology images and detailed blood flow information, which are then displayed in real-time to the doctor for convenient viewing and analysis. The host computer system 21 is equipped with a host computer power supply line 211, which is connected to the power supply module 23 to supply power to the host computer system 21.

[0044] As a further improvement to this embodiment, the laser emission controller 22 is equipped with a display screen 221, a laser switch button 222, a laser power adjustment button 223, and a controller power supply line 224, which is connected to the power supply module 23. By operating the laser switch button 222 and the laser power adjustment button 223, the laser emission controller 22 can precisely control the switching and power adjustment of the near-infrared laser. It can flexibly adjust the laser emission parameters according to different detection needs and tissue types, ensuring the safety and effectiveness of laser irradiation. The near-infrared laser irradiation is precisely controlled via the optical fiber 142, achieving efficient signal transmission and precise control. Simultaneously, relevant laser emission information is displayed on the display screen 221, and the laser emission controller 22 is powered via the controller power supply line 224.

[0045] As a further improvement to this embodiment, the power supply module 23 uses a rechargeable lithium-ion battery, which has a long battery life and can meet the power requirements of the system during mobile detection. The power supply module 23 is equipped with a power supply module switch 231 and a power supply module transmission line 232, with a plug 233 connected to the transmission line 232. The power supply module 23 itself can be charged by connecting to an external power source via the plug 233. This allows the system to operate while charging, ensuring the stability of the detection work.

[0046] Working principle and usage process of this utility model:

[0047] In use, first ensure that the power supply module switch 231 on the power supply module 23 in the detection unit 2 is in the "on" state. Next, inject the diluted indocyanine green contrast agent into the tissue to be tested. Then, the operator holds the handheld detection unit 1 and aligns the emission area of ​​the near-infrared laser and white light emitting unit 11 with the tissue to be tested. Subsequently, turn on the laser switch button 222 on the laser emission controller 22 in the detection unit 2. At this time, the 785nm near-infrared laser irradiates the area to be tested. The indocyanine green contrast agent rapidly absorbs this wavelength of near-infrared light and releases it as 820nm near-infrared light, emitting a fluorescence signal. Simultaneously, the visible light emitted by the white light emitting unit 113 also irradiates the tissue to be tested.

[0048] Next, the three sets of CCD cameras in the signal acquisition device 13 of the handheld detection unit 1 begin to work. The first CCD camera 131 receives the fluorescence signal emitted from the subcutaneous blood vessels through its front-mounted first CCD camera fixed-focus lens 134 and the 820nm first bandpass two-way beam splitter 121 on the optical path quadruple filtering unit 12; the second CCD camera 132 receives the near-infrared blood flow speckle signal through the second CCD camera fixed-focus lens 135, the 785nm short-pass filter 122, and the 785nm second bandpass two-way beam splitter 123; the third CCD camera 133 receives the visible light tissue signal through the third CCD camera fixed-focus lens 136 and the visible light reflector 124; the three signals received are transmitted to the host computer system 21 through their respective first CCD camera signal transmission lines 144, second CCD camera signal transmission lines 145, and third CCD camera signal transmission lines 146.

[0049] Then, the conventional image processing software on the host computer system 21 comprehensively processes and analyzes the acquired contrast agent fluorescence information, near-infrared blood flow information, and visible light tissue information, extracting key data such as vascular morphology, blood flow velocity, and blood flow rate. This information is then displayed on the screen of the host computer system 21 in intuitive charts and images for doctors to view and analyze. Throughout the entire detection process, the power supply module 23 continuously provides stable power support to the handheld detection unit 1 and the detection body 2. When the detection system's power is insufficient, it can be charged by connecting an external power source via plug 233. The charging process does not affect the normal use of the system, ensuring the continuity and reliability of the detection work. With the help of this system, doctors can conduct comprehensive and in-depth detection of patients' subcutaneous blood vessels, accurately assess vascular patency and blood perfusion, providing strong support for clinical diagnosis and treatment, and has significant clinical application value and broad prospects for promotion.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A portable subcutaneous small vessel imaging and blood flow detection system, characterized in that: include: A handheld detection unit (1) with a handle (17) is used to collect vascular information of the tissue to be tested; The detection unit (2) has a portable handle (24) for processing information and providing power; in: The handheld detection unit (1) is provided with a near-infrared laser and white light emitting unit (11), a four-stage optical path filtering unit (12), a signal acquisition device (13), a handheld device signal transmission and power supply line (14), and a heat dissipation unit (15). The near-infrared laser and white light emitting unit (11), the signal acquisition device (13), and the heat dissipation unit (15) are all connected to the handheld device signal transmission and power supply line (14). The output end of the four-stage optical path filtering unit (12) is connected to the signal acquisition device (13). A light shield (16) is provided in front of the input end of the near-infrared laser and white light emitting unit (11) and the four-stage optical path filtering unit (12). The detection body (2) is equipped with a host computer system (21), a laser emission controller (22), and a power supply module (23). The handheld device signal transmission and power supply line (14) is connected to the host computer system (21), the laser emission controller (22), and the power supply module (23) respectively. The host computer system (21) and the laser emission controller (22) are connected to the power supply module (23).

2. The portable subcutaneous small vessel imaging and blood flow detection system according to claim 1, characterized in that: The handheld device signal transmission and power supply line (14) includes a heat dissipation unit power supply line (141), an optical fiber (142), a CCD common power supply line (143), a first CCD camera signal transmission line (144), a second CCD camera signal transmission line (145), a third CCD camera signal transmission line (146), and a white light power supply line (147). The power supply line (141) of the heat dissipation unit is connected to the heat dissipation unit (15) and the power supply module (23) respectively. The optical fiber (142) is connected to the near-infrared laser and white light emitting unit (11) and the laser emission controller (22) respectively. The CCD common power supply line (143) is connected to the signal acquisition device (13) and the power supply module (23) respectively. The first CCD camera signal transmission line (144), the second CCD camera signal transmission line (145), and the third CCD camera signal transmission line (146) are all connected to the signal acquisition device (13) and the host computer system (21) respectively. The white light power supply line (147) is connected to the near-infrared laser and white light emitting unit (11) and the power supply module (23) respectively.

3. The portable subcutaneous small vessel imaging and blood flow detection system according to claim 2, characterized in that: The near-infrared laser and white light emitting unit (11) includes a near-infrared laser emitting module (111), a beam expander (112), and a white light emitting unit (113). The near-infrared laser emitting module (111) is connected to the optical fiber (142). The beam expander (112) is positioned in front of the input end of the near-infrared laser emitting module (111). The white light emitting unit (113) is connected to the white light power supply line (147).

4. The portable subcutaneous small vessel imaging and blood flow detection system according to claim 3, characterized in that: The near-infrared laser emitting module (111) has a size of 785nm.

5. A portable subcutaneous small vessel imaging and blood flow detection system according to claim 2, characterized in that: The signal acquisition device (13) includes a first CCD camera (131), a second CCD camera (132), a third CCD camera (133), a first CCD camera fixed-focus lens (134) connected to the first CCD camera (131), a second CCD camera fixed-focus lens (135) connected to the second CCD camera (132), and a third CCD camera fixed-focus lens (136) connected to the third CCD camera (133). The first CCD camera (131) is connected to the first CCD camera signal transmission line (144), the second CCD camera (132) is connected to the second CCD camera signal transmission line (145), and the third CCD camera (133) is connected to the third CCD camera signal transmission line (146).

6. The portable subcutaneous small vessel imaging and blood flow detection system according to claim 5, characterized in that: The optical path quadruple filtering unit (12) includes a first bandpass two-way beam splitter (121), a short-pass filter (122), a second bandpass two-way beam splitter (123), a visible light reflector (124), and a plane lens (125). The first bandpass two-way beam splitter (121) is disposed at the front end of the first CCD camera fixed-focus lens (134). The short-pass filter (122) and the second bandpass two-way beam splitter (123) are disposed at the front end of the second CCD camera fixed-focus lens (135). The visible light reflector (124) is disposed at the front end of the third CCD camera fixed-focus lens (136). The plane lens (125) is disposed at the front end of the first bandpass two-way beam splitter (121).

7. A portable subcutaneous small vessel imaging and blood flow detection system according to claim 6, characterized in that: The first bandpass two-way beam splitter (121) has a size of 820 nm, the short-pass filter (122) has a size of 785 nm, and the second bandpass two-way beam splitter (123) has a size of 785 nm.

8. The portable subcutaneous small vessel imaging and blood flow detection system according to claim 1, characterized in that: The host computer system (21) is equipped with a host computer power supply line (211), which is connected to the power supply module (23).

9. A portable subcutaneous small vessel imaging and blood flow detection system according to claim 1, characterized in that: The laser emission controller (22) is equipped with a display screen (221), a laser switch button (222), a laser power adjustment button (223), and a controller power supply line (224), which is connected to the power supply module (23).

10. A portable subcutaneous small vessel imaging and blood flow detection system according to claim 1, characterized in that: The power supply module (23) is equipped with a power supply module switch (231) and a power supply module transmission line (232), and the power supply module transmission line (232) is connected to a plug (233).

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