Microcirculation monitoring intervention device

Abstract

The invention relates to a microcirculation monitoring and intervening device which comprises a microcirculation monitoring module, a microcirculation intervening module and a control module. The monitoring end of the microcirculation monitoring module and the intervention end of the microcirculation intervention module are both used for being connected with four limbs of an object to be monitored, and the output end of the microcirculation monitoring module and the input end of the microcirculation intervention module are both connected with the control module; the microcirculation monitoring module is used for monitoring blood flow signal values corresponding to four limbs of a to-be-monitored object, the control module controls the microcirculation intervention module to output corresponding intervention signals based on the blood flow signal values, and the intervention signals are used for adjusting the blood flow signal values of the four limbs of the to-be-monitored object. By means of the technical scheme, accurate monitoring of the blood flow signal value and closed-loop control of the blood flow signal value can be achieved, microcirculation of the four limbs is intervened under the condition that insufficient blood flow or abnormal blood flow perfusion amount of the four limbs is monitored, smooth microcirculation of the four limbs can be ensured, and the intervening precision of the microcirculation is improved.

Description

Technical Field

[0001] The present application relates to the technical field of wearable laser Doppler monitoring, and in particular to a microcirculation monitoring intervention device. Background Art

[0002] Limb microcirculatory disorder refers to poor or obstructed blood flow in the microcirculatory system of the limbs, which results in the inability of tissues and organs in these areas to obtain sufficient oxygen and nutrients, and the elimination of metabolic waste is also affected. Microcirculation is the most basic unit of blood circulation, involving tiny capillaries, which are responsible for transporting oxygen and nutrients to cells and carrying carbon dioxide and other waste products produced by cell metabolism back to the heart. When microcirculation is impaired, it may cause local tissue ischemia and hypoxia, and may even lead to tissue necrosis or organ failure.

[0003] Among them, the early manifestations of microcirculation disorders in the limbs are mainly insufficient blood flow, abnormal blood perfusion, etc. Common non-invasive methods of monitoring blood flow include bioimpedance method, photoelectric volumetric pulse wave technology, and laser Doppler blood flowmeter. Some of the above methods cannot be used for the extremities, and some cannot be well realized as wearable and miniaturized due to their large size and high price. Furthermore, among the existing intervention technologies for microcirculation disorders in the limbs, most of them use drug therapy or physical massage to promote the increase of microcirculation in the limbs. At the same time, there are also photoelectric therapy products that can only provide surface treatment, but most of them are one-way therapy products, which cannot realize real-time adjustment of intervention parameters according to the monitoring feedback of the limbs. Summary of the invention

[0004] In order to solve the above-mentioned technical problems, an embodiment of the present application provides a technical solution for a microcirculation monitoring and intervention device, that is, the present application sets a microcirculation monitoring module, a microcirculation intervention module and a control module, so as to utilize the microcirculation monitoring module to monitor the blood flow signal values ​​corresponding to the limbs of the monitored object, and then the control module controls the microcirculation intervention module to output an intervention signal for adjusting the blood flow signal values ​​of the limbs of the monitored object based on the blood flow signal values, so as to realize accurate monitoring of the blood flow signal values ​​and closed-loop control of the blood flow signal values, and then, when it is detected that diabetic foot is in the early stage and insufficient blood flow or abnormal blood perfusion occurs, the microcirculation of the limbs is intervened, thereby ensuring the smoothness of the microcirculation of the limbs and at the same time, the intervention accuracy of the microcirculation can be improved.

[0005] The embodiment of the present application provides a microcirculation monitoring intervention device, which includes a microcirculation monitoring module, a microcirculation intervention module and a control module; The monitoring end of the microcirculation monitoring module and the intervention end of the microcirculation intervention module are both used to connect with the limbs of the subject to be monitored, and the output end of the microcirculation monitoring module and the input end of the microcirculation intervention module are both connected to the control module; The microcirculation monitoring module is used to monitor the blood flow signal values ​​corresponding to the limbs of the object to be monitored, and transmit the blood flow signal values ​​to the control module, so that the control module controls the microcirculation intervention module to output corresponding intervention signals based on the blood flow signal values, and the intervention signals are used to adjust the blood flow signal values ​​of the limbs of the object to be monitored.

[0006] Furthermore, the microcirculation monitoring module includes an infrared radiation unit, a photoelectric detection unit and a data processing unit; The infrared radiation unit and the photoelectric detection unit are both arranged on a carrying component, and the infrared radiation unit and the photoelectric detection unit are both adsorbed on the limbs of the subject to be monitored through the carrying component, the infrared radiation unit is used to emit infrared radiation light signals to biological tissue cells in the limbs of the subject to be monitored, and the photoelectric detection unit is used to convert the infrared light signals reflected by the biological tissue cells into electrical signals; The infrared radiation unit and the photoelectric detection unit are both connected to the data processing unit, and the data processing unit is used to determine the Doppler frequency shift data corresponding to the biological tissue cells based on the emission frequency value corresponding to the infrared radiation light signal and the receiving frequency value corresponding to the electrical signal, and determine the blood flow signal value corresponding to the biological tissue cells based on the Doppler frequency shift data.

[0007] Further, the photoelectric detection unit includes a first photoelectric detection sub-unit and a second photoelectric detection sub-unit; The first photoelectric detection subunit and the second photoelectric detection subunit are both arranged on the bearing component, and the first photoelectric detection subunit and the second photoelectric detection subunit are respectively located on two sides of the infrared radiation unit; The first photoelectric detection subunit is used to convert the first infrared light signal reflected by the red blood cells in the biological tissue cells into a first electrical signal, and the second photoelectric detection subunit is used to convert the second infrared light signal reflected by the lymphocytes in the biological tissue cells into a second electrical signal.

[0008] Further, the bearing component includes a flexible circuit board and an adsorption member; The infrared radiation unit and the photoelectric detection unit are both arranged on the flexible circuit board, the adsorbent is arranged on a side of the flexible circuit board away from the infrared radiation unit, the adsorbent is provided with a through hole penetrating the adsorbent, and the transmitting end of the infrared radiation unit and the receiving end of the photoelectric detection unit are both exposed in the through hole.

[0009] Further, the microcirculation intervention module includes an optical fiber intervention unit, and the optical fiber intervention unit is connected to the control module; The control module is used to control the fiber optic intervention unit to output a wide-spectrum intervention signal for adjusting the blood flow signal value to the limbs of the object to be monitored based on the blood flow signal value transmitted by the microcirculation monitoring module, so as to adjust the blood flow signal value to a preset blood flow signal threshold.

[0010] Further, the microcirculation intervention module includes an electrode intervention unit, and the electrode intervention unit is connected to the control module; The control module is used to control the electrode intervention unit to output an electrode intervention signal for adjusting the blood flow signal value to the limbs of the object to be monitored based on the blood flow signal value transmitted by the microcirculation monitoring module, so as to adjust the blood flow signal value to a preset blood flow signal threshold.

[0011] Furthermore, the fiber optic intervention unit includes a first limb wearable piece and a fiber optic braided piece arranged on the first limb wearable piece. The wide-spectrum intervention signal is transmitted through the fiber optic braided piece to the part where the microcirculation of the limbs is obstructed. The part where the microcirculation of the limbs is obstructed is the limb part where the blood flow signal value in the limb does not meet the preset blood flow signal condition.

[0012] Furthermore, the optical fiber braided component includes crisscrossed optical fibers, and a plurality of optical fiber output points are arranged on the optical fibers. The wide-spectrum intervention signal acts on the parts of the limbs where microcirculation obstruction occurs through the optical fiber output points.

[0013] Furthermore, the electrode intervention unit includes a second limb wearable piece and a plurality of electrode contacts arranged on the second limb wearable piece, and the electrode intervention signal is transmitted through the plurality of electrode contacts to a part of the limb microcirculation where obstruction occurs, and the part of the limb microcirculation where obstruction occurs is a limb part where the blood flow signal value in the limb does not meet the preset blood flow signal condition.

[0014] Furthermore, the second limb wearable component includes a first laminated portion and a second laminated portion, the second laminated portion is arranged close to the limb, the first laminated portion is arranged on a side of the second laminated portion away from the limb, the multiple electrode contacts are arranged on the second laminated portion, and the multiple electrode contacts are connected in parallel at multiple points on the second laminated portion.

[0015] The implementation of this application has the following beneficial effects: 1. The present application sets up a microcirculation monitoring module, a microcirculation intervention module and a control module, so that the microcirculation monitoring module is used to monitor the blood flow signal values ​​corresponding to the limbs of the monitored object. Then, based on the blood flow signal values, the control module controls the microcirculation intervention module to output an intervention signal for adjusting the blood flow signal values ​​of the limbs of the monitored object, so as to achieve accurate monitoring of the blood flow signal values ​​and closed-loop control of the blood flow signal values. Then, when insufficient blood flow or abnormal blood perfusion is detected in the early stage of diabetic foot, the microcirculation of the limbs is intervened, thereby ensuring the smoothness of the microcirculation of the limbs and improving the intervention accuracy of the microcirculation.

[0016] 2. The present application transmits infrared radiation light signals to the red blood cells and lymphocytes in the limbs of the subject to be monitored through an infrared radiation unit, so that the photoelectric detection unit converts the infrared light signals reflected by the red blood cells and the infrared light signals reflected by the lymphocytes into corresponding electrical signals, and then the data processing unit can determine the Doppler frequency shift data corresponding to the red blood cells and the lymphocytes based on the emission frequency value corresponding to the infrared radiation light signal and the receiving frequency value corresponding to the red blood cell electrical signal and the lymphocyte electrical signal, respectively, so as to determine the blood flow signal value corresponding to the red blood cells and the lymphocytes based on the Doppler frequency shift data, wherein the reason for detecting the blood flow signal value corresponding to the red blood cells and the lymphocytes is that the red blood cells and lymphocytes in the human body show more human physiological characteristics information, and thus can more accurately characterize the state information of the microcirculation, thereby helping to improve the intervention accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic diagram of the structure of a microcirculation monitoring and intervention device provided in an embodiment of the present application; Figure 2 A schematic diagram of the structure of a microcirculation monitoring module provided in an embodiment of the present application; Figure 3 A schematic diagram of the structure of a microcirculation monitoring module with an adsorption element provided in an embodiment of the present application; Figure 4 A schematic diagram of the structure of the microcirculation monitoring module provided in an embodiment of the present application arranged on a hand; Figure 5 A schematic diagram of the structure of an electrode intervention unit provided in an embodiment of the present application; Figure 6A schematic diagram of the structure of another electrode intervention unit provided in an embodiment of the present application; Figure 7 A schematic diagram of the structure of an optical fiber intervention unit provided in an embodiment of the present application; Figure 8 A schematic diagram of the structure of another optical fiber intervention unit provided in an embodiment of the present application; Among them, the corresponding figures are: 1-microcirculation monitoring module; 11-infrared radiation unit; 12-photoelectric detection unit; 121-first photoelectric detection sub-unit; 122-second photoelectric detection sub-unit; 123-flexible circuit board; 124-adsorption part; 2-microcirculation intervention module; 21-optical fiber intervention unit; 211-first limb wearable part; 212-optical fiber braided part; 22-electrode intervention unit; 221-second limb wearable part; 222-electrode contact; 3-control module. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0020] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or server that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products, or devices.

[0021] See also Figure 1 to Figure 8 , the following combination Figure 1 to Figure 8 A microcirculation monitoring intervention device provided in an embodiment of the present application is described in detail.

[0022] The present application embodiment provides a microcirculation monitoring intervention device, specifically, Figure 1 to Figure 8 As shown, the microcirculation monitoring and intervention device includes a microcirculation monitoring module 1 , a microcirculation intervention module 2 and a control module 3 .

[0023] Among them, the monitoring end of the microcirculation monitoring module 1 and the intervention end of the microcirculation intervention module 2 are both used to connect with the limbs of the object to be monitored, and the output end of the microcirculation monitoring module 1 and the input end of the microcirculation intervention module 2 are both connected to the control module 3; the microcirculation monitoring module 1 is used to monitor the blood flow signal values ​​corresponding to the limbs of the object to be monitored, and transmit the blood flow signal values ​​to the control module 3, so that the control module 3 controls the microcirculation intervention module 2 to output the corresponding intervention signal based on the blood flow signal value, and the intervention signal is used to adjust the blood flow signal values ​​of the limbs of the object to be monitored.

[0024] In an embodiment of the present application, the limbs of the subject to be monitored include the hands and feet of the subject to be monitored, and then a microcirculation monitoring module 1 is provided, and the monitoring end of the microcirculation monitoring module 1 is connected to the hands and feet of the subject to be monitored, so that the microcirculation monitoring module 1 can be used to monitor the blood flow signal values ​​corresponding to the hands and feet of the subject to be monitored, so as to achieve accurate monitoring of microcirculation disorders in the limbs, wherein microcirculation disorders in the limbs are often manifested as insufficient blood flow or abnormal blood perfusion, etc., which often occur in diseases such as diabetic foot and Raynaud's syndrome.

[0025] Furthermore, the microcirculation monitoring module 1 sends the blood flow signal values ​​corresponding to the hands and feet of the monitored object to the control module 3, so that when the control module 3 determines that any of the hands and feet of the monitored object sent by the microcirculation monitoring module 1 has microcirculation disorder, the control module 3 controls the microcirculation intervention module 2 to output an intervention signal for adjusting the blood flow signal value of the hand or foot with microcirculation disorder, so as to realize closed-loop control of the blood flow signal value, and then by applying the intervention signal that can improve the microcirculation disorder to the hand or foot with microcirculation disorder, the normal circulation of the microcirculation of the hand or foot with microcirculation disorder can be promoted, and the smooth microcirculation of the hand and foot can be ensured, and the control module 3 can adjust the intervention signal in real time according to the blood flow signal value monitored by the microcirculation monitoring module 1, thereby improving the intervention accuracy of the microcirculation.

[0026] In actual applications, the intervention signal output by the microcirculation intervention module 2 may be a wide-spectrum intervention signal or an electrode intervention signal, or a combined signal of a wide-spectrum intervention signal and an electrode intervention signal, wherein when the intervention signal output by the microcirculation intervention module 2 is a wide-spectrum intervention signal, the energy or intervention module or intervention duration and other parameters corresponding to the wide-spectrum intervention signal may be adjusted to achieve smooth microcirculation of the hands or feet with microcirculation disorders, wherein the intervention module may include a pulse mode or a constant current continuous output mode; when the intervention signal output by the microcirculation intervention module 2 is an electrode intervention signal, the energy or intervention module or intervention duration and other parameters corresponding to the electrode intervention signal may be adjusted to achieve smooth microcirculation of the hands or feet with microcirculation disorders; when the intervention signal output by the microcirculation intervention module 2 is a combined intervention signal of a wide-spectrum intervention signal and an electrode intervention signal, the effect and efficiency of microcirculation intervention on the hands or feet with microcirculation disorders may be improved by respectively adjusting the energy or intervention module or intervention duration and other parameters corresponding to the wide-spectrum intervention signal and the electrode intervention signal.

[0027] It should be noted that, when insufficient blood flow or too little blood perfusion occurs in either the hands or feet of the subject to be monitored, the microcirculation of the hands or feet with microcirculation disorders can be promoted by increasing the energy or intervention duration corresponding to the wide-spectrum intervention signal, or by using a constant current continuous output mode. When too fast blood flow or too much blood perfusion occurs in either the hands or feet of the subject to be monitored, the microcirculation of the hands or feet with microcirculation disorders can be suppressed by reducing the energy or intervention duration corresponding to the wide-spectrum intervention signal, or by using a pulse mode, so as to ensure the normal circulation of the microcirculation in the hands or feet of the subject to be monitored.

[0028] In an optional embodiment, if Figure 2 As shown, the microcirculation monitoring module 1 includes an infrared radiation unit 11, a photoelectric detection unit 12 and a data processing unit; wherein the infrared radiation unit 11 and the photoelectric detection unit 12 are both arranged on a carrying component, and the infrared radiation unit 11 and the photoelectric detection unit 12 are both adsorbed on the limbs of the object to be monitored through the carrying component, the infrared radiation unit 11 is used to emit infrared radiation light signals to the biological tissue cells in the limbs of the object to be monitored, and the photoelectric detection unit 12 is used to convert the infrared light signals reflected by the biological tissue cells into electrical signals; the infrared radiation unit 11 and the photoelectric detection unit 12 are both connected to the data processing unit, and the data processing unit is used to determine the Doppler frequency shift data corresponding to the biological tissue cells based on the emission frequency value corresponding to the infrared radiation light signal and the receiving frequency value corresponding to the electrical signal, and determine the blood flow signal value corresponding to the biological tissue cells based on the Doppler frequency shift data.

[0029] In an embodiment of the present application, the infrared radiation unit 11 is configured to output infrared radiation at a single stable frequency. Preferably, the wavelength of the infrared radiation output by the infrared radiation unit 11 is in the range of 800 nm to 1100 nm. In some specific embodiments, the infrared radiation unit 11 can be a miniature vertical cavity surface emitting laser or a laser diode, wherein the infrared radiation unit 11 is used to emit infrared radiation light signals to the biological tissue cells in the hands and feet of the object to be monitored, and the biological tissue cells in the hands and feet can reflect the corresponding infrared light signals. At the same time, since the biological tissue cells are in a flow state, the biological tissue cells are moving relative to the infrared radiation unit 11, so that the Doppler frequency shift data corresponding to the biological tissue cells can be determined.

[0030] In a specific embodiment, the photoelectric detection unit 12 can convert the infrared light signal reflected by the biological tissue cells into an electrical signal, and transmit the electrical signal to the data processing unit, so that the data processing unit can determine the Doppler frequency shift data corresponding to the biological tissue cells based on the emission frequency value corresponding to the infrared radiation light signal and the receiving frequency value corresponding to the electrical signal, wherein the Doppler frequency shift data is the difference between the frequency corresponding to the received infrared light signal and the frequency corresponding to the infrared radiation light signal emitted by the infrared radiation unit 11 when there is relative motion between the infrared radiation unit 11 and the biological tissue cells. Specifically, the faster the biological tissue cells move, the larger the Doppler frequency shift data generated, and the slower the biological tissue cells move, the smaller the Doppler frequency shift data generated. Furthermore, the data processing unit can determine the blood flow signal value corresponding to the biological tissue cells based on the obtained Doppler frequency shift data to monitor the blood flow signal value.

[0031] In practical applications, the blood flow signal value represents the flow velocity of biological tissue cells. Specifically, there is a positive proportional relationship between the Doppler frequency shift data and the blood flow signal value. That is, the larger the Doppler frequency shift data, the larger the blood flow signal value, and the smaller the Doppler frequency shift data, the smaller the blood flow signal value.

[0032] In a specific embodiment, Figure 2 As shown, the photoelectric detection unit 12 includes a first photoelectric detection sub-unit 121 and a second photoelectric detection sub-unit 122; wherein, the first photoelectric detection sub-unit 121 and the second photoelectric detection sub-unit 122 are both arranged on the supporting component, and the first photoelectric detection sub-unit 121 and the second photoelectric detection sub-unit 122 are respectively located on both sides of the infrared radiation unit 11; the first photoelectric detection sub-unit 121 is used to convert the first infrared light signal reflected by the red blood cells in the biological tissue cells into a first electrical signal, and the second photoelectric detection sub-unit 122 is used to convert the second infrared light signal reflected by the lymphocytes in the biological tissue cells into a second electrical signal.

[0033] In the embodiment of the present application, a first photoelectric detection subunit 121 and a second photoelectric detection subunit 122 are provided so that the first photoelectric detection subunit 121 can be used to convert a first infrared light signal reflected by red blood cells in biological tissue cells into a first electrical signal, and the second photoelectric detection subunit 122 can be used to convert a second infrared light signal reflected by lymphocytes in biological tissue cells into a second electrical signal, thereby realizing the conversion and monitoring of the flow rate of biological tissue cells.

[0034] It should be noted that the magnitude of the blood flow signal value can be characterized by the flow value of the red blood cells in the biological tissue cells and the flow value of the lymphocytes in the biological tissue cells. That is to say, the larger the flow value of the red blood cells in the biological tissue cells and the flow value of the lymphocytes in the biological tissue cells, the larger the blood flow signal value, and the smaller the flow value of the red blood cells in the biological tissue cells and the flow value of the lymphocytes in the biological tissue cells, the smaller the blood flow signal value. Among them, the flow value of the red blood cells in the biological tissue cells is faster than the flow value of the lymphocytes in the biological tissue cells, but the flow speed of the two can directly reflect the magnitude of the blood flow signal value. Although the flow speeds of the two are different, when the hand or foot of the monitored object has insufficient blood flow or abnormal blood perfusion, the flow value of the red blood cells in the biological tissue cells and the flow value of the lymphocytes in the biological tissue cells will change accordingly. For example, when the blood flow is insufficient, the flow value of the red blood cells in the biological tissue cells will be smaller than the corresponding flow value of the red blood cells when the blood flow is normal. At the same time, the flow value of the lymphocytes in the biological tissue cells is smaller than the corresponding flow value of the lymphocytes when the blood flow is normal.

[0035] Furthermore, the control module 3 can control the microcirculation intervention module 2 to output corresponding intervention signals according to the difference between the flow value of red blood cells in the monitored biological tissue cells and the flow value of corresponding red blood cells when the blood flow is normal, as well as the difference between the flow value of lymphocytes in the monitored biological tissue cells and the flow value of corresponding lymphocytes when the blood flow is normal, so as to utilize the intervention signal to adjust the blood flow signal value of the hand or foot where microcirculation disorder occurs, so as to ensure the smooth microcirculation of the hand and foot.

[0036] In actual applications, the first photodetection subunit 121 and the second photodetection subunit 122 can both be silicon photodiodes. The first photodetection subunit 121 and the second photodetection subunit 122 are respectively located on both sides of the infrared radiation unit 11, and the first photodetection subunit 121 and the second photodetection subunit 122 are symmetrically arranged relative to the infrared radiation unit 11, thereby improving the detection accuracy.

[0037] In some embodiments, the data processing unit determines the first Doppler frequency shift data corresponding to the biological tissue cells based on the emission frequency value corresponding to the infrared radiation light signal and the receiving frequency value corresponding to the first electrical signal after the first infrared light signal reflected by the received red blood cells is converted, wherein the first Doppler frequency shift data is the Doppler frequency shift data corresponding to the red blood cells in the biological tissue cells, and then the first blood flow signal value corresponding to the red blood cells in the biological tissue cells can be determined according to the correspondence between the first Doppler frequency shift data and the blood flow signal value. Further, the data processing unit determines the second Doppler frequency shift data corresponding to the biological tissue cells based on the emission frequency value corresponding to the infrared radiation light signal and the receiving frequency value corresponding to the second electrical signal after the second infrared light signal reflected by the received lymphocytes is converted, wherein the second Doppler frequency shift data is the Doppler frequency shift data corresponding to the lymphocytes in the biological tissue cells, and then the second blood flow signal value corresponding to the lymphocytes in the biological tissue cells can be determined according to the correspondence between the second Doppler frequency shift data and the blood flow signal value.

[0038] Optionally, before the data processing unit determines the Doppler frequency shift data corresponding to the biological tissue cells based on the emission frequency value corresponding to the infrared radiation light signal and the receiving frequency value corresponding to the electrical signal, and determines the blood flow signal value corresponding to the biological tissue cells based on the Doppler frequency shift data, the data processing unit is also used to filter the first electrical signal to remove frequencies outside the frequency band corresponding to the expected red blood cell Doppler frequency shift data. Furthermore, the data processing unit is also used to filter the second electrical signal to remove frequencies outside the frequency band corresponding to the expected lymphocyte Doppler frequency shift data, thereby improving the accuracy of the blood flow signal value.

[0039] In practical applications, the expected red blood cell Doppler frequency shift data corresponds to a frequency band of 250 Hz to 11,000 Hz, and further, the blood flow signal value corresponding to the expected red blood cell Doppler frequency shift data in the frequency band of 250 Hz to 11,000 Hz is 0.1 mm / s to 4 mm / s.

[0040] In an optional embodiment, if Figure 2 and Figure 3 As shown, the supporting component includes a flexible circuit board 123 and an adsorbent 124; wherein, the infrared radiation unit 11 and the photoelectric detection unit 12 are both arranged on the flexible circuit board 123, the adsorbent 124 is arranged on the side of the flexible circuit board 123 away from the infrared radiation unit 11, and a through hole penetrating the adsorbent 124 is provided in the adsorbent 124, and the transmitting end of the infrared radiation unit 11 and the receiving end of the photoelectric detection unit 12 are both exposed in the through hole.

[0041] Specifically, the word flexibility can be interpreted as flexibility, which is a property of an object relative to rigidity. In one embodiment, the flexible circuit board 123 in the embodiment of the present application is a flexible printed circuit board made of polyimide or polyester film as a substrate, which has the characteristics of high wiring density, light weight, thin thickness, and good bendability, and is suitable for greatly reducing the volume and weight of the microcirculation monitoring module 1. At the same time, it also has good heat dissipation and solderability, thereby improving the monitoring accuracy of the microcirculation monitoring module 1.

[0042] It should be noted that the cross-sectional area of ​​the microcirculation monitoring module 1 is 0.5 cm 2 ~1cm 2 Optionally, the cross-sectional area of ​​the microcirculation monitoring module 1 may be 0.5 cm 2 ~1cm 2 Preferably, the cross-sectional area of ​​the microcirculation monitoring module 1 is 1 cm 2 The thickness of the microcirculation monitoring module 1 is 0.8 mm. It can be seen that the microcirculation monitoring module 1 is a micro monitoring module. Specifically, the microcirculation monitoring module 1 does not need to build an additional optical path. It can only connect multiple microcirculation monitoring modules 1 in parallel through Bluetooth / wireless as multiple detection points of blood flow signal values. Among them, the multiple microcirculation monitoring modules 1 arranged in parallel can be used as a whole, which can be used to monitor the blood flow signal value of any hand, or monitor the blood flow signal value of any foot. Specifically, the distribution of the multiple microcirculation monitoring modules 1 arranged in parallel on the hand can refer to Figure 4 As shown, the distribution of multiple microcirculation monitoring modules 1 arranged in parallel on the foot can refer to Figure 6 As shown by Figure 4 and Figure 6 It can be seen that the multiple microcirculation monitoring modules 1 arranged in parallel are distributed throughout the hand or foot as much as possible, so as to accurately detect the microcirculation state of the hand and foot for the blood flow signal value and improve the monitoring accuracy.

[0043] Furthermore, four microcirculation monitoring modules 1 arranged in parallel can be provided to simultaneously detect the blood flow signal values ​​corresponding to both hands and both feet, thereby improving the monitoring accuracy of the blood flow signal values ​​of any hand and any foot while also improving the monitoring efficiency.

[0044] In an optional embodiment, if Figure 7 and Figure 8 As shown, the microcirculation intervention module 2 includes a fiber optic intervention unit 21, which is connected to the control module 3; wherein the control module 3 is used to control the fiber optic intervention unit 21 to output a wide-spectrum intervention signal for adjusting the blood flow signal value to the limbs of the object to be monitored based on the blood flow signal value transmitted by the microcirculation monitoring module 1, so as to adjust the blood flow signal value to a preset blood flow signal threshold.

[0045] In the embodiment of the present application, the fiber optic intervention unit 21 is an intervention unit implemented by light therapy. Specifically, the fiber optic intervention unit 21 can irradiate the hands or feet of the monitored object with microcirculation disorders with low-energy light, so as to utilize the photobiomodulation effect to stimulate the hands or feet of the monitored object with microcirculation disorders, so that the hands or feet can overcome the microcirculation disorders and ensure smooth microcirculation in the hands and feet. Then, by setting the fiber optic intervention unit 21, the control module 3 controls the fiber optic intervention unit 21 to output a wide-spectrum intervention signal for adjusting the blood flow signal value to the hand or foot of the monitored object, so as to achieve the regulation of the blood flow signal value in the limbs. Among them, the method of achieving the regulation of the blood flow signal value in the limbs by the wide-spectrum intervention signal output by the fiber optic intervention unit 21 has the advantages of non-contact, good patient compliance, clear efficacy, good safety, etc., and thus has practicality.

[0046] In a specific embodiment, the broad spectrum interference signal refers to electromagnetic radiation energy within a broad wavelength range. In some embodiments, the broad spectrum interference signal corresponds to a wavelength range of 480nm to 1400nm, wherein 1000nm-1400nm in the broad spectrum interference signal is the wavelength band with the strongest penetration ability, and the power density is greater than or equal to 150mw / cm 2 , and then a wide-spectrum intervention signal can be used to deeply penetrate and treat hands or feet with microcirculation disorders, achieving true deep microcirculation regulation.

[0047] In actual applications, the control module 3 can adjust the intervention parameters such as the energy or intervention module or intervention duration corresponding to the wide-spectrum intervention signal based on the received blood flow signal value, so as to perform precise intervention according to the correspondence between the blood flow signal value and the preset blood flow signal threshold, thereby ensuring the smooth microcirculation of the hands or feet with microcirculation disorders, wherein the intervention module can include a pulse mode or a constant current continuous output mode.

[0048] Specifically, when the blood flow signal value of the hand or foot of the monitored object is monitored to be less than the preset blood flow signal threshold, it indicates that the hand or foot of the monitored object has insufficient blood flow or too little blood perfusion, and then the energy or intervention time corresponding to the wide-spectrum intervention signal can be increased, or the constant current continuous output mode can be used to promote the microcirculation of the hand or foot with microcirculation disorder, thereby ensuring the normal circulation of the hand or foot of the monitored object with microcirculation disorder. In some specific embodiments, the increase amplitude of the energy corresponding to the wide-spectrum intervention signal, the specific intervention time and the size of the constant current continuous output can be determined according to the specific difference between the blood flow signal value of the hand or foot of the monitored object and the preset blood flow signal threshold. No specific limitation is made here. It should be noted that at least one or at least two of the energy, intervention time and intervention module corresponding to the wide-spectrum intervention signal can be adjusted to adapt to the current state of microcirculation disorder. Further, the energy, intervention time and working mode corresponding to the wide-spectrum intervention signal can also be adjusted at the same time to enhance its intervention effect.

[0049] Further, when the blood flow signal value of the hand or foot of the monitored object is monitored to be greater than the preset blood flow signal threshold, it indicates that the hand or foot of the monitored object has too fast blood flow or too much blood perfusion, and then the energy or intervention time corresponding to the wide-spectrum intervention signal can be reduced, or the pulse mode can be used to suppress the microcirculation of the hand or foot with microcirculation disorder, thereby ensuring the normal circulation of the hand or foot of the monitored object with microcirculation disorder. In some specific embodiments, the reduction amplitude of the energy corresponding to the wide-spectrum intervention signal, the specific intervention time and the amplitude of the pulse mode, etc., can be determined according to the specific difference between the blood flow signal value of the hand or foot of the monitored object and the preset blood flow signal threshold. No specific limitation is made here. It should be noted that at least one or at least two of the energy, intervention time and intervention module corresponding to the wide-spectrum intervention signal can be adjusted to adapt to the current state of microcirculation disorder. Further, the energy, intervention time and working mode corresponding to the wide-spectrum intervention signal can also be adjusted at the same time to enhance its intervention effect.

[0050] In a specific embodiment, Figure 7 and Figure 8 As shown, the fiber optic intervention unit 21 includes a first limb wearable component 211 and a fiber optic braided component 212 arranged on the first limb wearable component 211. The wide-spectrum intervention signal is transmitted through the fiber optic braided component 212 to the part where the microcirculation of the limbs is obstructed. The part where the microcirculation of the limbs is obstructed is the limb part where the blood flow signal value in the limbs does not meet the preset blood flow signal condition.

[0051] Specifically, the first limb wearable component 211 includes a hand wearable component and a foot wearable component. The position of the optical fiber braided component 212 on the hand wearable component can be referred to Figure 7 As shown, the optical fiber braided member 212 is located on the back of the hand on the hand wearable member, and the position of the optical fiber braided member 212 on the foot wearable member can be referred to Figure 8 As shown, that is, the optical fiber braided component 212 is located on the back of the foot on the foot wearable component, and then, when microcirculation disorder occurs in the hand and the hand wearable component is worn, the wide-spectrum intervention signal is transmitted to the hand through the optical fiber braided component 212, and then the blood flow signal value in the hand can be adjusted to make it meet the preset blood flow signal condition, thereby achieving the regulation of hand microcirculation, and further, when microcirculation disorder occurs in the foot and the foot wearable component is worn, the wide-spectrum intervention signal is transmitted to the foot through the optical fiber braided component 212, and then the blood flow signal value in the foot can be adjusted to make it meet the preset blood flow signal condition, thereby achieving the regulation of foot microcirculation.

[0052] In some embodiments, the optical fiber braid 212 includes crisscross optical fibers, and a plurality of optical fiber output points are provided on the optical fibers. The wide-spectrum intervention signal acts on the parts of the limbs where microcirculation obstruction occurs through the optical fiber output points.

[0053] Furthermore, by providing a fiber optic braid 212 including crisscross optical fibers, a wide spectrum intervention signal can act on the parts of the limbs where microcirculation is obstructed through the optical fiber output points, so as to further enhance the intervention effect.

[0054] In an optional embodiment, if Figure 5 and Figure 6 As shown, the microcirculation intervention module 2 includes an electrode intervention unit 22, which is connected to the control module 3; wherein the control module 3 is used to control the electrode intervention unit 22 to output an electrode intervention signal for adjusting the blood flow signal value to the limbs of the object to be monitored based on the blood flow signal value transmitted by the microcirculation monitoring module 1, so as to adjust the blood flow signal value to a preset blood flow signal threshold.

[0055] In the embodiment of the present application, the electrode intervention unit 22 applies an electrode intervention signal to the hand or foot where microcirculation disorder occurs to electrically stimulate the acupuncture points of the hand or foot, thereby promoting or inhibiting the circulation of microcirculation in the hand and foot. Then, by setting the electrode intervention unit 22, the control module 3 controls the electrode intervention unit 22 to output the electrode intervention signal for adjusting the blood flow signal value to the limbs of the monitored object, so as to achieve the regulation of the blood flow signal value in the limbs.

[0056] In actual applications, the control module 3 can adjust parameters such as the energy or intervention module or intervention duration corresponding to the electrode intervention signal based on the received blood flow signal value, so as to perform precise intervention according to the correspondence between the blood flow signal value and the preset blood flow signal threshold, thereby ensuring the smooth microcirculation of the hands or feet with microcirculation disorders.

[0057] Specifically, when the blood flow signal value of the hand or foot of the monitored object is monitored to be less than the preset blood flow signal threshold, it indicates that the hand or foot of the monitored object has insufficient blood flow or too little blood perfusion, and then the energy or intervention time corresponding to the electrode intervention signal can be increased, or the constant current continuous output mode can be used to electrically stimulate the microcirculation of the hand or foot with microcirculation disorder, thereby ensuring the normal circulation of the hand or foot of the monitored object with microcirculation disorder. In some specific embodiments, the increase amplitude of the energy corresponding to the electrode intervention signal, the specific intervention time and the size of the constant current continuous output can be determined according to the specific difference between the blood flow signal value of the hand or foot of the monitored object and the preset blood flow signal threshold. No specific limitation is made here. It should be noted that at least one or at least two of the energy, intervention time and intervention module corresponding to the electrode intervention signal can be adjusted to adapt to the current state of microcirculation disorder. Further, the energy, intervention time and working mode corresponding to the electrode intervention signal can also be adjusted at the same time to enhance its intervention effect.

[0058] Furthermore, when the blood flow signal value of the hand or foot of the monitored object is monitored to be greater than the preset blood flow signal threshold, it indicates that the hand or foot of the monitored object has too fast blood flow or too much blood perfusion, and then the energy or intervention time corresponding to the electrode intervention signal can be reduced, or the pulse mode can be used to suppress the microcirculation of the hand or foot with microcirculation disorder, so as to ensure the normal circulation of the hand or foot microcirculation of the monitored object. In some specific embodiments, the reduction amplitude of the energy corresponding to the electrode intervention signal, the specific intervention time and the amplitude of the pulse mode, etc., can be determined according to the specific difference between the blood flow signal value of the hand or foot of the monitored object and the preset blood flow signal threshold. No specific limitation is made here. It should be noted that at least one or at least two of the energy, intervention time and intervention module corresponding to the electrode intervention signal can be adjusted to adapt to the current state of microcirculation disorder. Furthermore, the energy, intervention time and working mode corresponding to the wide-spectrum intervention signal can also be adjusted at the same time to enhance its intervention effect.

[0059] In a specific embodiment, Figure 5 and Figure 6 As shown, the electrode intervention unit 22 includes a second limb wearable component 221 and a plurality of electrode contacts 222 arranged on the second limb wearable component 221. The electrode intervention signal is transmitted to the part where the microcirculation of the limbs is obstructed through the plurality of electrode contacts 222. The part where the microcirculation of the limbs is obstructed is the limb part where the blood flow signal value in the limbs does not meet the preset blood flow signal conditions.

[0060] In the embodiment of the present application, the second limb wearable component 221 includes a hand wearable component and a foot wearable component. The positions of the plurality of electrode contacts 222 on the hand wearable component can be referred to as Figure 5 As shown, that is, the plurality of electrode contacts 222 are evenly distributed on the back of the hand wearable component, and the positions of the plurality of electrode contacts 222 on the foot wearable component can be referred to Figure 6 As shown, that is, multiple electrode contacts 222 are evenly distributed on the back of the foot on the foot wearable device, and then, when microcirculation disorder occurs in the hand and the hand wearable device is worn, the electrode intervention signal is transmitted to the hand through the multiple electrode contacts 222, and then the blood flow signal value in the hand can be adjusted to make it meet the preset blood flow signal condition, thereby achieving the regulation of hand microcirculation, and further, when microcirculation disorder occurs in the foot and the foot wearable device is worn, the electrode intervention signal is transmitted to the foot through the multiple electrode contacts 222, and then the blood flow signal value in the foot can be adjusted to make it meet the preset blood flow signal condition, thereby achieving the regulation of foot microcirculation.

[0061] It should be noted that the energy corresponding to the electrode intervention signal can be adjusted by adjusting the current or voltage output by the electrode contact 222, thereby controlling the energy input to the hands and feet.

[0062] In some specific embodiments, the second limb wearable component 221 includes a first laminate portion and a second laminate portion, the second laminate portion is arranged close to the limbs, the first laminate portion is arranged on the side of the second laminate portion away from the limbs, and a plurality of electrode contacts 222 are arranged on the second laminate portion, and the plurality of electrode contacts 222 are connected in parallel at multiple points on the second laminate portion.

[0063] Specifically, by connecting multiple electrode contacts 222 in parallel at multiple points on the second stacked portion, different degrees of electrode interference signals can be applied to different acupuncture points on the hands or feet, so as to ensure that the microcirculation of the hands or feet is in a normal circulation state while selectively activating specific acupuncture point pathways, thereby improving the regulation efficiency.

[0064] Furthermore, the microcirculation intervention module 2 may also include an optical fiber intervention unit 21 and an electrode intervention unit 22 at the same time, and then the control module 3 may control the output of the optical fiber intervention unit 21 and the electrode intervention unit 22 at the same time based on the blood flow signal value transmitted by the microcirculation monitoring module 1. That is to say, the optical fiber intervention unit 21 may apply a wide-spectrum intervention signal to the hand or foot with microcirculation disorder alone to ensure the normal circulation of the microcirculation of the hand or foot of the monitored object with microcirculation disorder. At the same time, the electrode intervention unit 22 may also apply an electrode intervention signal to the hand or foot with microcirculation disorder alone to ensure the normal circulation of the microcirculation of the hand or foot of the monitored object with microcirculation disorder. Further, the optical fiber intervention unit 21 and the electrode intervention unit 22 may be used to simultaneously apply a wide-spectrum intervention signal and an electrode intervention signal to the hand or foot with microcirculation disorder to realize a combined intervention signal composed of a wide-spectrum intervention signal and an electrode intervention signal. Specifically, the energy or intervention module or intervention duration and other parameters corresponding to the wide-spectrum intervention signal and the electrode intervention signal may be adjusted respectively to improve the effect and efficiency of microcirculation intervention on the hand or foot with microcirculation disorder.

[0065] It can be seen from the above technical solutions of the embodiments of the present application that the following technical effects are achieved: 1. The present application sets up a microcirculation monitoring module, a microcirculation intervention module and a control module, so that the microcirculation monitoring module is used to monitor the blood flow signal values ​​corresponding to the limbs of the monitored object. Then, based on the blood flow signal values, the control module controls the microcirculation intervention module to output an intervention signal for adjusting the blood flow signal values ​​of the limbs of the monitored object, so as to achieve accurate monitoring of the blood flow signal values ​​and closed-loop control of the blood flow signal values. Then, when insufficient blood flow or abnormal blood perfusion is detected in the early stage of diabetic foot, the microcirculation of the limbs is intervened, thereby ensuring the smoothness of the microcirculation of the limbs and improving the intervention accuracy of the microcirculation.

[0066] 2. The present application transmits infrared radiation light signals to the red blood cells and lymphocytes in the limbs of the subject to be monitored through an infrared radiation unit, so that the photoelectric detection unit converts the infrared light signals reflected by the red blood cells and the infrared light signals reflected by the lymphocytes into corresponding electrical signals, and then the data processing unit can determine the Doppler frequency shift data corresponding to the red blood cells and the lymphocytes based on the emission frequency value corresponding to the infrared radiation light signal and the receiving frequency value corresponding to the red blood cell electrical signal and the lymphocyte electrical signal, respectively, so as to determine the blood flow signal value corresponding to the red blood cells and the lymphocytes based on the Doppler frequency shift data, wherein the reason for detecting the blood flow signal value corresponding to the red blood cells and the lymphocytes is that the red blood cells and lymphocytes in the human body show more human physiological characteristics information, and thus can more accurately characterize the state information of the microcirculation, thereby helping to improve the intervention accuracy.

[0067] The structure shown in this embodiment is only a partial structure related to the solution of this application, and does not constitute a limitation on the device to which the solution of this application is applied. The specific device may include more or fewer components than shown, or combine certain components, or have different arrangements of components. It should be understood that the method, device, etc. disclosed in this embodiment can be implemented in other ways.

[0068] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A microcirculation monitoring intervention device, characterized in that: It comprises a microcirculation monitoring module (1), a microcirculation intervention module (2) and a control module (3); The monitoring end of the microcirculation monitoring module (1) and the intervention end of the microcirculation intervention module (2) are both used to connect to the limbs of the subject to be monitored, and the output end of the microcirculation monitoring module (1) and the input end of the microcirculation intervention module (2) are both connected to the control module (3); The microcirculation monitoring module (1) is used to monitor the blood flow signal values ​​corresponding to the four limbs of the subject to be monitored, and transmit the blood flow signal values ​​to the control module (3), so that the control module (3) controls the microcirculation intervention module (2) to output corresponding intervention signals based on the blood flow signal values, and the intervention signals are used to adjust the blood flow signal values ​​of the four limbs of the subject to be monitored; The microcirculation monitoring module (1) comprises an infrared radiation unit (11), a photoelectric detection unit (12) and a data processing unit, wherein the infrared radiation unit (11) is used to emit infrared radiation light signals to biological tissue cells in the limbs of the subject to be monitored, the photoelectric detection unit (12) is used to convert the infrared light signals reflected by the biological tissue cells into electrical signals, the infrared light signals reflected by the biological tissue cells comprising infrared light signals reflected by red blood cells and infrared light signals reflected by lymphocytes, and the data processing unit is used to determine Doppler frequency shift data corresponding to the biological tissue cells based on the emission frequency value corresponding to the infrared radiation light signal and the reception frequency value corresponding to the electrical signal, and determine the blood flow signal value corresponding to the biological tissue cells based on the Doppler frequency shift data.

2. The microcirculation monitoring intervention device according to claim 1, characterized in that: The infrared radiation unit (11) and the photoelectric detection unit (12) are both arranged on a bearing component, the infrared radiation unit (11) and the photoelectric detection unit (12) are both adsorbed on the limbs of the subject to be monitored through the bearing component, and the infrared radiation unit (11) and the photoelectric detection unit (12) are both connected to the data processing unit.

3. The microcirculation monitoring intervention device according to claim 2, characterized in that: The photoelectric detection unit (12) comprises a first photoelectric detection subunit (121) and a second photoelectric detection subunit (122); The first photoelectric detection subunit (121) and the second photoelectric detection subunit (122) are both arranged on the bearing component, and the first photoelectric detection subunit (121) and the second photoelectric detection subunit (122) are respectively located on two sides of the infrared radiation unit (11); The first photoelectric detection subunit (121) is used to convert a first infrared light signal reflected by red blood cells in the biological tissue cells into a first electrical signal, and the second photoelectric detection subunit (122) is used to convert a second infrared light signal reflected by lymphocytes in the biological tissue cells into a second electrical signal.

4. The microcirculation monitoring intervention device according to claim 2, characterized in that: The bearing component comprises a flexible circuit board (123) and an adsorption member (124); The infrared radiation unit (11) and the photoelectric detection unit (12) are both arranged on the flexible circuit board (123); the adsorbent (124) is arranged on a side of the flexible circuit board (123) away from the infrared radiation unit (11); a through hole penetrating the adsorbent (124) is provided in the adsorbent (124); and the transmitting end of the infrared radiation unit (11) and the receiving end of the photoelectric detection unit (12) are both exposed in the through hole.

5. The microcirculation monitoring intervention device according to claim 1, characterized in that: The microcirculation intervention module (2) comprises an optical fiber intervention unit (21), and the optical fiber intervention unit (21) is connected to the control module (3); The control module (3) is used to control the optical fiber intervention unit (21) to output a wide-spectrum intervention signal for adjusting the blood flow signal value to the limbs of the subject to be monitored based on the blood flow signal value transmitted by the microcirculation monitoring module (1), so as to adjust the blood flow signal value to a preset blood flow signal threshold.

6. The microcirculation monitoring intervention device according to claim 1, characterized in that: The microcirculation intervention module (2) comprises an electrode intervention unit (22), and the electrode intervention unit (22) is connected to the control module (3); The control module (3) is used to control the electrode intervention unit (22) to output an electrode intervention signal for adjusting the blood flow signal value to the limbs of the subject to be monitored based on the blood flow signal value transmitted by the microcirculation monitoring module (1), so as to adjust the blood flow signal value to a preset blood flow signal threshold.

7. The microcirculation monitoring intervention device according to claim 5, characterized in that: The optical fiber intervention unit (21) comprises a first limb wearable component (211) and an optical fiber braided component (212) arranged on the first limb wearable component (211); the wide-spectrum intervention signal is transmitted through the optical fiber braided component (212) to a part of the limb microcirculation disordered by the limb microcirculation disorder; the part of the limb microcirculation disordered by the limb microcirculation disorder is a limb part where the blood flow signal value in the limb does not meet a preset blood flow signal condition.

8. The microcirculation monitoring intervention device according to claim 7, characterized in that: The optical fiber braid (212) comprises crisscrossed optical fibers, and a plurality of optical fiber output points are arranged on the optical fibers. The wide-spectrum intervention signal acts on the parts of the limbs where microcirculation obstruction occurs through the optical fiber output points.

9. The microcirculation monitoring intervention device according to claim 6, characterized in that: The electrode intervention unit (22) comprises a second limb wearable device (221) and a plurality of electrode contacts (222) arranged on the second limb wearable device (221); the electrode intervention signal is transmitted via the plurality of electrode contacts (222) to a part of the limb where microcirculation obstruction occurs; the part of the limb where microcirculation obstruction occurs is a limb part where the blood flow signal value in the limb does not meet a preset blood flow signal condition.

10. The microcirculation monitoring intervention device according to claim 9, characterized in that: The second limb wearable component (221) comprises a first laminated portion and a second laminated portion, wherein the second laminated portion is arranged close to the limb, and the first laminated portion is arranged on a side of the second laminated portion away from the limb, and the plurality of electrode contacts (222) are arranged on the second laminated portion, and the plurality of electrode contacts (222) are connected in parallel at multiple points on the second laminated portion.

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