Device and method for monitoring revascularization

Abstract

This invention provides a blood revascularization monitoring device and method. The blood revascularization monitoring device includes: a light source and a photoelectric sensor disposed on a housing; both the light source and the photoelectric sensor are electrically connected to a main control board inside the housing; the light source includes a first light-emitting diode; the photoelectric sensor includes a first receiver and a second receiver; the first receiver and the second receiver, together with the first light-emitting diode, form a first monitoring channel for monitoring blood oxygen data; the line connecting the first receiver and the second receiver forms a triangle with the projection of the first monitoring channel onto the bottom surface of the housing. This invention facilitates accurate monitoring of blood circulation status.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a revascularization monitoring device. This invention also relates to a revascularization monitoring method using the revascularization monitoring device. Background Technology

[0002] After skin grafts, plastic surgery, and finger or limb amputations, it is necessary to monitor the transplanted skin, amputated fingers, or limbs to determine their survival status. Taking skin grafts as an example, the successful survival of the transplanted skin depends primarily on whether an effective blood circulation has been established between the transplanted skin and the patient's own skin. Therefore, monitoring the condition of the transplanted skin is crucial.

[0003] In related techniques, the initial assessment of blood supply to the transplanted skin is typically done by observing its color and temperature. This involves periodically measuring the temperature and visually observing the skin's color. Later, contrast agents are injected, and blood flow is monitored using specialized equipment. However, visually monitoring the color of the transplanted skin relies heavily on the subjective judgment of medical staff regarding subtle color changes, leading to uncertainties in the monitoring's effectiveness. While contrast agents improve accuracy, the expensive equipment and cumbersome procedures prevent timely monitoring, further hindering accurate assessment of blood supply status. Summary of the Invention

[0004] In view of this, the present invention aims to provide a blood revascularization monitoring device to facilitate accurate monitoring of blood revascularization status.

[0005] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0006] A revascularization monitoring device, characterized in that it comprises:

[0007] A light source and a photoelectric sensor are mounted on the housing; and both the light source and the photoelectric sensor are electrically connected to the main control board inside the housing.

[0008] The light source includes a first light-emitting diode; the photoelectric sensor includes a first receiver and a second receiver;

[0009] Both the first receiver and the second receiver form a first monitoring channel with the first light-emitting diode to monitor blood oxygen data;

[0010] The line connecting the first receiver and the second receiver forms a triangle with the projection of the first monitoring channel onto the bottom surface of the housing.

[0011] Furthermore, the projections of the two first monitoring channels onto the bottom surface of the housing form a first included angle; the first included angle is 40°-50°.

[0012] Furthermore, the first light-emitting diode and the first receiver, as well as the first receiver and the second receiver, are distributed on the housing at a first spacing; the first spacing is 3mm-5mm.

[0013] Furthermore, the light source also includes a second light-emitting tube, which emits light alternately with the first light-emitting tube; and both the first receiver and the second receiver form a second monitoring channel for monitoring blood oxygen data with the second light-emitting tube; some of the second monitoring channels are distributed crosswise with the first monitoring channel.

[0014] Furthermore, the main control board is equipped with one or more of a WIFI module, a mobile network module, and a Bluetooth module to form a signal connection with the acquisition terminal.

[0015] Furthermore, the blood revascularization monitoring device also includes a power supply component; the power supply component includes a battery and a charging interface, the battery is fixedly connected in the housing to power the main control board, the light source and the photoelectric sensor, the charging interface is connected to an external power source to charge the battery, and / or, the power supply component includes a supercapacitor, the supercapacitor powering the main control board, the light source and the photoelectric sensor.

[0016] Furthermore, a solar panel is fixedly connected to the housing, and the solar panel is electrically connected to the power supply component; and / or, a microwave receiver is provided on the housing, and the microwave receiver is electrically connected to the power supply component.

[0017] Furthermore, a temperature sensor is provided on the housing, the temperature sensor is electrically connected to the main control board, and the temperature sensor is located between the light source and the photoelectric sensor.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] The revascularization monitoring device of this invention utilizes near-infrared light generated by a light source to penetrate human tissue. After diffuse reflection, the light is received by a photoelectric sensor. Since the absorption spectra of oxyhemoglobin and deoxyhemoglobin in human tissue differ significantly, the signal received by the photoelectric sensor facilitates analysis of the revascularization status in the monitored area. Compared to existing methods relying on subjective judgment by medical personnel, this increases the accuracy of monitoring results. Furthermore, compared to existing contrast agent injection methods, it offers the advantage of non-invasive monitoring of the monitored area. By arranging the line connecting the first and second receivers in a triangle with the projection of the first monitoring channel onto the bottom surface of the housing, the required length for arranging the light source and photoelectric sensor is reduced, thereby facilitating a smaller bottom area of ​​the housing and making it easier to fix the revascularization monitoring device to the area to be monitored.

[0020] Secondly, by setting and adjusting the first included angle and the first spacing, the length and width of the space occupied by the light source and photoelectric sensor integrated on the housing are minimized. This allows the blood revascularization monitoring device to be applied to a smaller monitoring area, thus improving its applicability.

[0021] Furthermore, by setting a second light-emitting diode to emit light alternately with the first light-emitting diode, and forming a second monitoring channel with the first and second receivers, the number of monitoring points in the monitoring area is increased, while the number of photoelectric sensors is reduced, thus contributing to the miniaturization of the revascularization monitoring device. After skin grafting, the suture area needs to be wrapped with gauze to reduce the risk of infection. Therefore, miniaturization of the revascularization monitoring device, especially the miniaturization of the contact surface with the monitoring area, helps improve the applicability of the device; this design, based on miniaturization, also increases the accuracy of the monitoring data.

[0022] Meanwhile, by incorporating a temperature sensor, the temperature of the monitored area can be tracked, facilitating the assessment of blood circulation in that area based on temperature changes. Furthermore, placing the temperature sensor between the light source and the photoelectric sensor reduces the size of the housing, contributing to miniaturization and weight reduction.

[0023] Another objective of this invention is to provide a method for monitoring revascularization, which involves attaching at least two housings equipped with light sources and photoelectric sensors to the area of ​​the patient to be monitored; and sequentially controlling each light source to monitor blood oxygen levels in multiple monitoring channels formed by the monitoring area.

[0024] When comparing blood oxygen saturation values ​​within the same monitoring area, warnings or abnormal signals are given for values ​​with large deviations.

[0025] Furthermore, the housing is attached to the monitoring area using a low-tack pressure-sensitive adhesive.

[0026] The present invention discloses a method for monitoring revascularization, which involves attaching at least two revascularization monitoring devices to the patient's skin graft area or the area surrounding the skin graft area to screen out abnormal monitoring data caused by poor blood circulation due to the patient's limb movement or excessive pressure or squeezing near the skin graft site. Attached Figure Description

[0027] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0028] Figure 1 This is a schematic diagram of the overall structure of the blood revascularization monitoring device according to an embodiment of the present invention;

[0029] Figure 2This is a schematic diagram of the structure of the light source and photoelectric sensor described in an embodiment of the present invention;

[0030] Figure 3 This is a schematic diagram of the internal component structure of the housing according to an embodiment of the present invention;

[0031] Figure 4 This is a schematic diagram of the first monitoring channel according to an embodiment of the present invention;

[0032] Figure 5 This is a schematic diagram of the first included angle as described in an embodiment of the present invention;

[0033] Figure 6 This is a schematic diagram of the second monitoring channel according to an embodiment of the present invention.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Housing; 101. Main control board; 1011. WIFI module; 1012. Mobile network module; 1013. Bluetooth module;

[0036] 2. Light source; 201, first LED; 202, second LED;

[0037] 3. Photoelectric sensor; 301. First receiver; 302. Second receiver;

[0038] 4. First monitoring channel;

[0039] 5. Second monitoring channel;

[0040] 6. Power supply components; 601. Battery; 602. Charging interface;

[0041] 7. Solar panels;

[0042] 8. Temperature sensor;

[0043] 9. Supercapacitor;

[0044] 10. Microwave receiver;

[0045] α, first included angle; a, first spacing; b, second spacing. Detailed Implementation

[0046] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0047] In the description of this invention, it should be noted that the use of terms such as "upper," "lower," "inner," and "outer," indicating orientation or positional relationship, is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the invention and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the use of terms such as "first" and "second" is also for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0048] Furthermore, in the description of this invention, unless otherwise explicitly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention in light of the specific circumstances.

[0049] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0050] Example 1

[0051] This embodiment relates to a blood revascularization monitoring device to facilitate accurate monitoring of blood supply status.

[0052] In terms of overall structure, such as Figures 1 to 6 As shown, the blood revascularization monitoring device includes a light source 2 and a photoelectric sensor 3 mounted on the housing 1; and both the light source 2 and the photoelectric sensor 3 are electrically connected to the main control board 101 inside the housing 1; the light source 2 includes a first light-emitting diode 201; the photoelectric sensor 3 includes a first receiver 301 and a second receiver 302; the first receiver 301 and the second receiver 302 together with the first light-emitting diode 201 form a first monitoring channel 4 for monitoring blood oxygen data; the line connecting the first receiver 301 and the second receiver 302 forms a triangle with the projection of the first monitoring channel 4 onto the bottom surface of the housing 1.

[0053] As configured above, the near-infrared light generated by the light source 2 penetrates human tissue and, after diffuse reflection, is received by the photoelectric sensor 3. Since the absorption spectra of oxyhemoglobin and deoxyhemoglobin in human tissue differ significantly, the signal received by the photoelectric sensor 3 facilitates the analysis of blood revascularization in the monitored area. Compared to existing methods relying on subjective judgment by medical personnel, this increases the accuracy of the monitoring results. Furthermore, compared to existing contrast agent injection methods, it facilitates non-invasive monitoring of the monitored area. By setting the line connecting the first receiver 301 and the second receiver 302 to form a triangle with the projection of the first monitoring channel 4 onto the bottom surface of the housing 1, the required length for arranging the light source 2 and photoelectric sensor 3 is reduced, thereby facilitating a smaller bottom area of ​​the housing 1 and making it easier to fix the blood revascularization monitoring device to the monitored area.

[0054] It is worth noting that light source 2 mainly generates near-infrared light with wavelengths between 700nm and 1000nm, which has good penetration into human tissues. After diffuse reflection, the near-infrared light is absorbed by oxyhemoglobin and deoxyhemoglobin in the tissue. Since there is a significant difference in the absorption spectra of oxyhemoglobin and deoxyhemoglobin, the maximum absorption spectrum of oxyhemoglobin is between 850nm and 1000nm, while the maximum absorption spectrum of deoxyhemoglobin is between 700nm and 760nm. Based on the modified Lambert-Beer law, the tissue oxygenation and cerebral oxygenation saturation values ​​in the monitoring area are obtained by near-infrared spectroscopy.

[0055] Based on the above overview, the first monitoring channel 4 described in this embodiment has two channels: the first light-emitting diode 201 and the first receiver 301 form one first monitoring channel 4, and the first light-emitting diode 201 and the second receiver 302 form another first monitoring channel 4. Data from the two first monitoring channels 4 are collected and compared to avoid the influence of different skin colors on the monitoring results.

[0056] It is worth noting that the main control board 101 is used to periodically send instruction acquisition signals to the light source 2, and can receive blood oxygen data collected by the photoelectric sensor 3. After processing the blood oxygen data, it obtains the blood oxygen saturation data of the corresponding area of ​​the light source 2. It can also transmit the data to the acquisition terminal, which can be one or more of a mobile phone, tablet computer, smartwatch, desktop computer, or laptop.

[0057] To facilitate blood supply monitoring of skin in different locations, such as Figures 4 to 6As shown, the projections of the two first monitoring channels 4 onto the bottom surface of the housing 1 form a first included angle α; the first included angle α is 40°-50°. For example, the first included angle α can be 40°, 45°, or 50°. Based on this, the first light-emitting diode 201 and the first receiver 301, as well as the first receiver 301 and the second receiver 302, are distributed on the housing 1 with a first spacing a; the first spacing a is 3mm-5mm. For example, the first spacing a can be 3.5mm, 4mm, or 5mm. Let any value of the first spacing a (3mm-5mm) be x, then the straight-line distance between the first light-emitting diode 201 and the second light-emitting diode 202 is... The monitoring depth of the first monitoring channel 4 between the first light-emitting diode 201 and the second light-emitting diode 202 is: Because the blood vessels in different areas are at different depths from the epidermis—for example, the blood vessel depths at the fingertips, the anterolateral thigh flap, and the inferior epigastric artery flap are significantly different—setting different sizes of the first spacing 'a' enables the blood revascularization monitoring device to monitor blood flow to the skin at different depths.

[0058] As set above, with a fixed first angle α, different first spacings a can achieve blood oxygen monitoring of blood vessels at different depths. When the first spacing a is fixed, a preferred setting of the first angle α is 45°. This ensures that the line connecting the first receiver 301 and the second receiver 302 forms an isosceles right triangle with the projection of the first monitoring channel 4 onto the bottom surface of the housing 1, minimizing the length and width of the space occupied by the light source 2 and photoelectric sensor 3 integrated on the housing 1. This facilitates the application of the revascularization monitoring device in smaller monitoring areas, improving its applicability.

[0059] To improve the accuracy of blood supply monitoring in the monitored area, such as Figures 1 to 6 As shown, the light source 2 also includes a second light-emitting tube 202, which emits light alternately with the first light-emitting tube 201; and the first receiver 301 and the second receiver 302 together with the second light-emitting tube 202 form a second monitoring channel 5 for monitoring blood oxygen data; some of the second monitoring channels 5 are distributed crosswise with the first monitoring channel 4.

[0060] By setting the second light-emitting diode 202 to emit light alternately with the first light-emitting diode 201, and forming a second monitoring channel 5 with the first receiver 301 and the second receiver 302, the number of monitoring points in the monitoring area is increased, and the number of photoelectric sensors 3 is reduced, thereby helping to miniaturize the blood revascularization monitoring device. After skin transplantation, the suture area needs to be wrapped with gauze to reduce the risk of infection. Therefore, miniaturization of the blood revascularization monitoring device, especially the miniaturization of the contact surface with the monitoring area, helps to improve the applicability of the blood revascularization monitoring device; this setting increases the accuracy of monitoring data on the basis of miniaturization.

[0061] Furthermore, because some of the second monitoring channels 5 intersect with the first monitoring channel 4, the linear monitoring paths are overlapped to form a mesh monitoring path, thereby increasing the monitoring area of ​​the monitoring region.

[0062] As an optional implementation, the second light-emitting diode 202 and the first light-emitting diode 201, as well as the second light-emitting diode 202 and the second receiver 302, are distributed on the housing 1 with a second spacing b. The second spacing b is 3mm-5mm. For example, the second spacing b can be 3.5mm, 4mm, or 5mm. Preferably, the second spacing b is set to be the same as the first spacing a. This arrangement minimizes the area occupied by the light source 2 and the photoelectric receiver on the housing 1 when monitoring blood oxygen at a certain depth, and maximizes the monitoring area.

[0063] Based on the above, in order to further increase the accuracy of monitoring results, such as Figure 1 As shown, a temperature sensor 8 is provided on the housing 1. The temperature sensor 8 is electrically connected to the main control board 101 and is located between the light source 2 and the photoelectric sensor 3.

[0064] By incorporating temperature sensor 8, the temperature of the monitored area can be monitored, facilitating the assessment of blood circulation in that area based on temperature changes. Furthermore, placing temperature sensor 8 between light source 2 and photoelectric sensor 3 reduces the size of housing 1, contributing to miniaturization and weight reduction.

[0065] It's worth noting that the temperature of transplanted skin is an important indicator of its blood circulation. Normally, the temperature of transplanted skin should be similar to that of the surrounding healthy skin. If the temperature of the transplanted skin is abnormally high or low, it may indicate poor blood circulation or other problems. For example, when there is a blood supply disorder in the transplanted skin, such as arterial embolism or obstructed venous return, its temperature may change. In the case of arterial embolism, the temperature of the transplanted skin may drop suddenly; while in the case of obstructed venous return, the temperature may gradually rise due to blood pooling.

[0066] To facilitate the main control board 101 in transmitting data to the acquisition terminal, such as Figure 3 As shown, the main control board 101 is equipped with a WIFI module 1011, a mobile network module 1012, and a Bluetooth module 1013 to form a signal connection with the data acquisition terminal. This setup allows medical staff to flexibly view the blood supply status of transplanted skin in different patients, helping to reduce their workload and improve the efficiency of blood supply status observation.

[0067] To facilitate patient monitoring, such as Figure 1 and Figure 3As shown, the revascularization monitoring device also includes a power supply component 6, which includes: a battery 601, fixed inside the housing 1 to power the main control board 101, the light source 2, and the photoelectric sensor 3; and a charging interface 602, connected to an external power source to charge the battery 601. This configuration eliminates the need to constantly plug a power cord into the housing 1, thus facilitating patient movement.

[0068] In another embodiment of the power supply component 6, the power supply component 6 includes a supercapacitor 9, which supplies power to the main control board 101, the light source 2, and the photoelectric sensor 3. By setting the power supply component 6 to a supercapacitor 9, the power supply component 6 possesses both the rapid charging and discharging capability of a capacitor and the energy storage characteristics of a battery.

[0069] Based on the above introduction of power supply component 6, in practice, any one or two of the different implementation forms of power supply component 6 can be selected and set.

[0070] As a preferred embodiment for charging the power supply component 6, such as Figure 1 As shown, a solar panel 7 is fixedly connected to the housing 1, and the solar panel 7 is electrically connected to the battery 601 to supply power to the battery 601. By installing the solar panel 7 on the housing 1, the battery 601 can be charged by the solar panel 7 under sunlight or fluorescent light to meet daily power needs and reduce the number of charging cycles.

[0071] As an optional implementation of the solar panel 7, specifically, in practice, the solar panel 7 can be fixed to the top surface of the housing 1. The fixing method can be adhesive or snap-fit, or the solar panel 7 can be fixed to the circumferential wall of the housing 1 and used as the top plate of the housing 1 to form the housing 1.

[0072] As another embodiment for charging the power supply component 6, a microwave receiver 10 is provided on the housing 1, and the microwave receiver 10 is electrically connected to the power supply component 6. In a specific implementation, a microwave transmitter is installed in the ward, corridor, or hospital area. The microwave receiver 10 receives the microwaves generated by the microwave transmitter and converts them into electrical energy to power the power supply component 6. Using microwaves to charge the power supply component 6 has advantages such as being pollution-free and noise-free.

[0073] Based on the above description of the charging method for the power supply component 6, in specific implementation, either or both of the solar panel 7 and microwave receiver 10 can be installed on the housing 1.

[0074] The blood revascularization monitoring device described in this application embodiment controls the first light-emitting diode 201 and the second light-emitting diode 202 to emit light alternately, thereby forming a first monitoring channel 4 and a second monitoring channel 5 in the monitoring area; at the same time, the temperature sensor 8 monitors the temperature of the monitoring area, and the measured data is transmitted from the main control board 101 to the data acquisition terminal so that medical staff can understand the blood circulation status of the monitoring area.

[0075] Near-infrared light generated by light source 2 penetrates human tissue and is received by photoelectric sensor 3 after diffuse reflection. Since the absorption spectra of oxyhemoglobin and deoxyhemoglobin in human tissue are significantly different, the signal received by photoelectric sensor 3 is easily analyzed to monitor the revascularization status of the monitored area. Compared to existing methods relying on subjective judgment by medical personnel, this increases the accuracy of monitoring results and, compared to existing contrast agent injection methods, facilitates non-invasive monitoring of the monitored area. Furthermore, by setting the line connecting the first receiver 301 and the second receiver 302 to form a triangle with the projection of the first monitoring channel 4 onto the bottom surface of the housing 1, the required length for arranging the light source 2 and photoelectric sensor 3 is reduced, thereby facilitating a smaller bottom area of ​​the housing 1 and making it easier to fix the revascularization monitoring device to the area to be monitored.

[0076] Example 2

[0077] This embodiment relates to a method for monitoring revascularization. First, at least two housings 1 equipped with light sources 2 and photoelectric sensors 3 are attached to the patient's desired monitoring site. Then, each light source 2 is controlled sequentially to detect blood oxygen in the multi-channel detection area. Finally, the blood oxygen saturation values ​​in the same monitoring area are compared, and warning or abnormal signals are given for values ​​with large deviations.

[0078] The device is designed to attach at least two of the revascularization monitoring devices to the patient's skin graft area or the area surrounding the skin graft area to screen out abnormal monitoring data caused by poor blood circulation due to patient limb movement or excessive pressure on the skin graft site.

[0079] As one embodiment of fixing the housing 1 to the transplanted skin, specifically, in practice, the housing 1 is adhered to the monitoring area using a low-tack pressure-sensitive adhesive. The use of a low-tack pressure-sensitive adhesive provides sufficient adhesion without damaging the surface of the adhered object, achieving temporary fixation and protection.

[0080] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A revascularization monitoring device, characterized in that, The blood revascularization monitoring device comprises a shell (1), a light source (2) and a photoelectric sensor (3) arranged on the shell (1), and the light source (2) and the photoelectric sensor (3) are electrically connected with a main control board (101) in the shell (1); the light source (2) comprises a first light emitting tube (201), and the photoelectric sensor (3) comprises a first receiver (301) and a second receiver (302); the first receiver (301) and the second receiver (302) form a first monitoring channel (4) for monitoring blood oxygen data with the first light emitting tube (201); the connection line between the first receiver (301) and the second receiver (302) forms a triangle with the projection of the first monitoring channel (4) on the bottom surface of the shell (1); the projections of the two first monitoring channels (4) on the bottom surface of the shell (1) form a first included angle (α), the first included angle (α) is 45°, the first light emitting tube (201), the first receiver (301) and the second receiver (302) are distributed on the shell (1) with a first spacing (a), and the first spacing (a) is 3-5 mm; the light source (2) further comprises a second light emitting tube (202), the second light emitting tube (202) and the first light emitting tube (201) alternately emit light, and the first receiver (301) and the second receiver (302) form a second monitoring channel (5) for monitoring blood oxygen data with the second light emitting tube (202), and part of the second monitoring channel (5) is distributed in cross with the first monitoring channel (4).

2. The blood revascularization monitoring device according to claim 1, wherein: the main control board (101) is provided with one or more of a WIFI module (1011), a mobile network module (1012) and a Bluetooth module (1013) to form a signal connection with a collection terminal. It further comprises a power supply assembly (6); 3. The revascularization monitoring device of claim 1, wherein : the power supply assembly (6) comprises a storage battery (601) and a charging interface (602), the storage battery (601) is fixedly connected in the shell (1) to supply power for the main control board (101), the light source (2) and the photoelectric sensor (3), the charging interface (602) is connected with an external power supply to charge the storage battery (601), and / or the power supply assembly (6) comprises a super capacitor (9), and the super capacitor (9) supplies power for the main control board (101), the light source (2) and the photoelectric sensor (3).

4. The blood revascularization monitoring device according to claim 3, wherein: a solar cell panel (7) is fixedly connected to the shell (1), and the solar cell panel (7) is electrically connected with the power supply assembly (6); and / or a microwave receiver (10) is arranged on the shell (1), and the microwave receiver (10) is electrically connected with the power supply assembly (6).

5. The blood revascularization monitoring device according to any one of claims 1-4, wherein: ​ The shell (1) is provided with a temperature sensor (8), the temperature sensor (8) is electrically connected with the main control board (101), and the temperature sensor (8) is located between the light source (2) and the photoelectric sensor (3).

6. A method of monitoring revascularization, the method comprising: The blood revascularization monitoring device in any one of claims 1 to 5 is attached to a required monitoring site of a patient; each light source (2) is controlled in sequence, and blood oxygen monitoring is performed on a plurality of monitoring channels formed by the monitoring area; The blood oxygen saturation values in the same monitoring area are compared, and for the values with large deviations, an alarm or an abnormal signal is given.

7. The blood revascularization monitoring method according to claim 6, characterized in that: The shell (1) is attached to the monitoring area by low-adhesion pressure-sensitive adhesive.

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