Sensor and blood glucose detector

Abstract

The invention discloses a sensor and a blood glucose detector, and relates to the technical field of blood glucose detection.The sensor comprises a base body and a detection electrode, the base body is provided with an attaching face, the attaching face is arranged to be attached to a user, the attaching face is provided with a mounting hole, the detection electrode is arranged in the mounting hole, and part of the detection electrode protrudes out of the attaching face; and the base body is made of an elastic material. The invention aims to improve the fitting degree of the sensor and the skin of the user, reduce the influence of micro motion of the skin or muscle of the user on blood glucose detection, and improve the accuracy and continuity of blood glucose data collection.

Description

Technical Field

[0001] The present invention relates to the technical field of blood sugar detection, and in particular to a sensor and a blood sugar detector. Background Art

[0002] A blood glucose meter is a blood glucose monitoring system composed of a microelectrode biosensor and a transmitter. It can monitor blood glucose through electrochemical reactions for a long time (such as 7 days, 14 days or up to 21 days) to determine health status.

[0003] The sensor part of the existing blood glucose monitor needs to be attached to the user's skin. Due to the softness of human skin and the unevenness of muscles, the sensor cannot fit the user's skin well. At the same time, the user's normal body movement may also cause unnecessary micro-movements at the detection end of the sensor, so that the detection end of the sensor cannot fully obtain the user's current blood glucose level in the blood or tissue fluid, thereby affecting the accuracy and continuity of the blood glucose data collected by the blood glucose monitor. Summary of the invention

[0004] The main purpose of the present invention is to propose a sensor and a blood glucose detector, aiming to improve the fit between the sensor and the user's skin, reduce the impact of micro-movements of the user's skin or muscles on blood glucose detection, and improve the accuracy and continuity of blood glucose data collection.

[0005] To achieve the above object, the present invention provides a sensor, comprising: A base, wherein the base is provided with a fitting surface, the fitting surface is configured to fit a user, and the fitting surface is provided with a mounting hole; A detection electrode, the detection electrode is arranged in the mounting hole, and a part of the detection electrode protrudes from the fitting surface; The base material is elastic material.

[0006] In one embodiment, the detection electrode includes an elastic body and conductive particles, the elastic body is arranged in the mounting hole, and a portion of the elastic body protrudes from the fitting surface; The conductive particles are disposed on the elastic body.

[0007] In one embodiment, the detection electrode is provided with a deformation cavity, the elastic body encloses and forms the deformation cavity, and the deformation cavity is airtightly arranged.

[0008] In one embodiment, the detection electrode includes an abutment joint and a conductive strip, the abutment joint is provided at an end of one end of the conductive strip, the abutment joint is located in the mounting hole and protrudes from the fitting surface; The conducting strip extends in a direction parallel to the bonding surface, and the abutting head pushes the conducting strip to deform in a direction perpendicular to the bonding surface.

[0009] In one embodiment, the abutment head comprises an abutment section and a recessed section, wherein the recessed section is provided at the end of the conductive strip and is located between the abutment section and the conductive strip, and the recessed section is provided in the mounting hole; The abutting section protrudes from the fitting surface and is located at the periphery of the opening of the mounting hole.

[0010] In one embodiment, the sensor further comprises a conductive terminal, the conductive terminal is arranged on the substrate, the conductive terminal comprises a contact portion and a connecting portion, the contact portion is arranged at an end of the connecting portion; The contact portion electrically contacts the detection electrode and the external circuit along a direction perpendicular to the bonding surface, and the connecting portion extends along a direction parallel to the bonding surface.

[0011] In one embodiment, the detection electrode is arranged to extend in a curve in a direction perpendicular to the bonding surface; And / or, the sensor includes a plurality of the detection electrodes, and the plurality of the detection electrodes are arranged on the substrate at intervals.

[0012] In one embodiment, the sensor further comprises an adhesive tape, wherein the adhesive tape is arranged on the periphery of the substrate; And / or, the sensor further comprises a strap, one end of the strap is connected to the base, and the other end of the strap is movably connected to the base.

[0013] In one embodiment, the base comprises a substrate and a mounting plate, wherein the mounting plate is arranged on the substrate, and the mounting plate is provided with the bonding surface on a side facing away from the substrate; The base plate and the mounting plate are elastically connected.

[0014] In one embodiment, the base further comprises an elastic member, and the elastic member is located between the base and the mounting plate; One end of the elastic member is connected to the base, and the other end of the elastic member is connected to the mounting plate.

[0015] In one embodiment, the periphery of the mounting plate is connected to the base, and the mounting plate and the base plate enclose to form an adjustment cavity; The sensor further comprises a driving pump which is in communication with the regulating chamber.

[0016] The present invention also provides a blood glucose detector, which comprises: A sensor as described above; and A transmitter is communicatively connected to the sensor.

[0017] The sensor of the technical solution of the present invention includes a substrate and a detection electrode. The substrate is provided with a fitting surface, the fitting surface is set to fit the user, the fitting surface is provided with a mounting hole, the detection electrode is set in the mounting hole, and part of the detection electrode protrudes from the fitting surface; the substrate material is an elastic material. By setting the substrate to be an elastic material, when the substrate fits the user's skin through the fitting surface, it can better fit the uneven areas on the user's skin, and the detection electrode protruding from the fitting surface can also be well abutted against the user's skin. Moreover, when the user's skin is deformed and muscles move due to daily activities, the substrate of elastic material can always ensure that the sensor is closely fitted to the user's skin, and part of the detection electrodes are always in close contact with the user's skin, so as to continuously perform blood sugar detection, effectively reducing the influence of micro-movements of the user's skin or muscles on blood sugar detection, so as to improve the accuracy and continuity of blood sugar data collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the structure of a sensor in one embodiment of the present invention; Figure 2 A schematic diagram of the structure of a sensor from another perspective in one embodiment of the present invention; Figure 3 It is an exploded schematic diagram of a sensor in one embodiment of the present invention; Figure 4 is a cross-sectional schematic diagram of a sensor in one embodiment of the present invention; Figure 5 A schematic diagram of the structure of a detection electrode in one embodiment of the present invention; Figure 6 It is a schematic diagram of the structure of a conductive terminal in one embodiment of the present invention; Figure 7 is a cross-sectional schematic diagram of a sensor in another embodiment of the present invention; Figure 8 A schematic diagram of the structure of a detection electrode in another embodiment of the present invention; Fig. 9 FIG. 4 is a schematic diagram of the structure of a sensor in another embodiment of the present invention.

[0020] Description of Figure Numbers: 100. Sensor; 1. Base; 11. Base plate; 12. Mounting plate; 121. Fitting surface; 122. Mounting hole; 13. Adjustment cavity; 2. Detection electrode; 21. Elastic body; 211. Abutment head; 2111. Abutment section; 2112. Recessed section; 212. Conductive strip; 22. Deformation cavity; 3. Conductive terminal; 31. Contact portion; 32. Connecting portion; 4. Binding strap.

[0021] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0024] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0025] Please refer to Figures 1 to 4 as well as Figure 7 As shown, the present invention proposes a sensor 100, which includes a substrate 1 and a detection electrode 2. The substrate 1 is provided with a fitting surface 121, and the fitting surface 121 is configured to fit a user. The fitting surface 121 is provided with a mounting hole 122, and the detection electrode 2 is disposed in the mounting hole 122, and part of the detection electrode 2 protrudes from the fitting surface 121; the substrate 1 is made of elastic material.

[0026] In this embodiment, the sensor 100 is applied to a blood glucose meter, which is a medical device that can monitor blood glucose levels. The blood glucose meter can continuously and in real time monitor the changes in daily blood glucose of diabetic patients and record blood glucose data in real time. It is widely used in daily blood glucose management of diabetic patients. Different from traditional finger-pricking blood tests, the blood glucose meter of this application is attached to the skin to achieve continuous blood glucose testing.

[0027] Specifically, the blood glucose detector includes a sensor 100 and a transmitter. The sensor 100 is usually attached to human skin, such as the upper arm or abdomen, and a probe or detection electrode 2 inside the sensor 100 is provided with glucose oxidase. The glucose oxidase can react with glucose in the tissue fluid to measure the glucose concentration in the tissue fluid and convert the detected glucose concentration into an electrical signal. The transmitter is electrically connected to the sensor 100 to obtain an electrical signal about the glucose concentration in the sensor 100, and at the same time, the acquired blood glucose data is wirelessly transmitted to an external signal receiving device, such as a smart phone, a smart watch, a dedicated monitor, etc., to facilitate users to view, analyze, and trace data.

[0028] In this embodiment, the substrate 1 is the main supporting structure of the sensor 100. The substrate 1 can be a plate-like structure, a seat structure, a table structure, a shell structure, etc., which is not limited here. The substrate 1 is provided with a fitting surface 121, and the fitting surface 121 faces the user's skin side. When the user wears the sensor 100, the fitting surface 121 contacts the user's skin. For example, an adhesive tape is provided on the fitting surface 121, and the sensor 100 is worn by sticking the adhesive tape to the user's skin.

[0029] At the same time, if Figure 3 and Figure 7 As described above, a mounting hole 122 is provided on the fitting surface 121, and the opening of the mounting hole 122 is arranged toward the user's skin. A detection electrode 2 for detecting blood sugar is provided in the mounting hole 122, and the detection electrode 2 abuts against the side wall of the mounting hole 122, and one end of a part of the detection electrode 2 protrudes from the fitting surface 121 and contacts the user's skin, and the other end of the detection electrode 2 is electrically connected to or electrically abuts against an external circuit.

[0030] Among them, the material of the base 1 is elastic material, and at least the material of the detection electrode 2 that protrudes from the fitting surface 121 can also be elastic material, so that the base 1 and the detection electrode 2 can better fit the user's skin, reducing the displacement or poor contact of the detection electrode 2 caused by human body movement or skin deformation, so as to better contact the user's skin for blood sugar testing and ensure the continuity and accuracy of blood sugar testing.

[0031] The sensor 100 of the present technical solution includes a substrate 1 and a detection electrode 2. The substrate 1 is provided with a fitting surface 121, and the fitting surface 121 is set to fit the user. The fitting surface 121 is provided with a mounting hole 122, and the detection electrode 2 is arranged in the mounting hole 122, and part of the detection electrode 2 protrudes from the fitting surface 121. The material of the substrate 1 is an elastic material. By setting the substrate 1 to be an elastic material, when the substrate 1 is fitted to the user's skin through the fitting surface 121, it can better fit the uneven areas on the user's skin, and the detection electrode 2 protruding from the fitting surface 121 can also be well abutted against the user's skin. Moreover, when the user's skin is deformed and muscles move due to daily activities, the substrate 1 made of elastic material can also always ensure that the sensor 100 is closely fitted to the user's skin, and part of the detection electrode 2 is always in close contact with the user's skin, so as to continuously perform blood sugar detection, effectively reducing the influence of micro-movements of the user's skin or muscles on blood sugar detection, so as to improve the accuracy and continuity of blood sugar data collection.

[0032] In one embodiment, if Figure 1 and Figures 3 to 8 The detection electrode 2 shown includes an elastic body 21 and conductive particles. The elastic body 21 is disposed in the mounting hole 122 , and a portion of the elastic body 21 protrudes from the fitting surface 121 ; the conductive particles are disposed in the elastic body 21 .

[0033] In this embodiment, the elastic body 21 is the main supporting structure of the detection electrode 2. The elastic body 21 can be an elastic material such as silicone, rubber, silicone rubber, fluororubber, polyurethane elastomer, etc. The elastic body 21 is arranged in the mounting hole 122, and the outer wall of the elastic body 21 abuts against the hole wall of the mounting hole 122. Part of the elastic body 21 protrudes from the opening of the mounting hole 122, that is, the protruding fitting surface 121 is set to contact the user's skin.

[0034] Furthermore, in order to achieve conductive properties, conductive particles are added to the detection electrode 2. The material of the conductive particles can be metal conductive media such as silver powder, copper powder, aluminum powder, etc., or non-metal conductive media such as carbon fiber, graphite, graphene and carbon nanotubes. The structure of the conductive particles can be rod-shaped, fibrous, granular, etc. The conductive particles are evenly distributed in the elastic body 21 to provide an electronic conductive path and enable the detection electrode 2 to achieve circuit conduction.

[0035] It can be understood that the material of the elastic body 21 is preferably silicone rubber, which has good biocompatibility and chemical stability, and is suitable for instruments and equipment that come into contact with the human body. At the same time, the elastic detection electrode 2 also has good flexibility and deformability, and can adapt to the curve of the human skin surface and the movement of the skin and muscles. It can improve the fit between the detection electrode 2 and the user's skin, and reduce the displacement or poor contact of the detection electrode 2 caused by human movement or skin deformation. The sensor 100 is also more comfortable after being worn for a long time. At the same time, the elastic body 21 with conductive particles can also well realize blood sugar detection and circuit conduction, thereby improving the continuity, stability and accuracy of blood sugar detection.

[0036] At the same time, the detection electrode 2 made of silicone rubber material with good biocompatibility with human skin can, on the one hand, reduce adverse reactions such as allergies, and on the other hand, improve the electrical contact performance between the electrode and the skin, reduce skin irritation, increase the conductivity of the detection electrode 2, reduce impedance and improve the signal-to-noise ratio, thereby improving the detection performance of the sensor 100.

[0037] In one embodiment, if Figure 1 , Figure 7 and Figure 8 As shown, the detection electrode 2 is provided with a deformation cavity 22 , and the elastic body 21 encloses the deformation cavity 22 . The deformation cavity 22 is sealed, and the conductive particles are arranged in the solid part of the elastic body 21 .

[0038] It can be understood that a deformation cavity 22 is provided in the center of the elastic body 21. The deformation cavity 22 is a closed cavity formed by the elastic body 21. The deformation cavity 22 is the non-physical part of the detection electrode 2, and the elastic body 21 is the physical part of the detection body 2. The conductive particles are provided in the elastic body 21, and the deformation cavity 22, that is, the virtual part of the elastic body 21, is filled with air, nitrogen and other gases. At the same time, the cavity extension of the deformation cavity 22 is also the same as the hole extension direction of the mounting hole 122, and is arranged vertically or obliquely with the fitting surface 121. When the detection electrode 2 abuts against the user's skin, the gas inside the deformation cavity 22 can be compressed. Compared with the detection electrode 2 whose entire elastic body 21 is an elastic body, the compression of the deformation cavity 22 is more sensitive and faster, so that the compression and deformation of the elastic body 21 and the detection electrode 2 are faster and more sensitive, so that it can fit the user's skin more flexibly and quickly obtain the user's blood sugar data, while also reducing the sense of pressure on the skin and improving the user's wearing comfort.

[0039] In one embodiment, if Figure 1 , Figures 3 to 6As shown, the detection electrode 2 includes a butt joint 211 and a conductive strip 212. The butt joint 211 is arranged at the end of one end of the conductive strip 212. The butt joint 211 is located in the mounting hole 122 and protrudes from the fitting surface 121. The conductive strip 212 extends in a direction parallel to the fitting surface 121, and the butt joint 211 pushes the conductive strip 212 to deform in a direction perpendicular to the fitting surface 121.

[0040] In this embodiment, the detection electrode 2 includes a butt joint 211 and a conductive strip 212. The conductive strip 212 is a conductive structure extending in a strip shape, and the conductive strip 212 can extend along a straight line or a curve. The butt joint 211 is arranged at the end of one end of the conductive strip 212. The end of the conductive strip 212 away from the butt joint 211 is electrically connected to or electrically butted against an external circuit. The butt joint 211 is arranged in the mounting hole 122, and protrudes from the opening of the mounting hole 122, that is, the protruding fitting surface 121, so as to be used for contacting the user's skin.

[0041] At the same time, both the abutment joint 211 and the conductive strip 212 are made of conductive materials, and at least the abutment joint 211 is made of elastic conductive material, such as conductive silicone rubber, etc. The conductive strip 212 can be a flexible circuit board or the above-mentioned conductive silicone rubber. The abutment joint 211 and the conductive strip 212 can be manufactured in one piece, or they can be electrically connected by welding, gold wire connection, etc.

[0042] It can be understood that the abutment joint 211 is configured as a conductive structure with elasticity, such as conductive silicone rubber, so that the abutment joint 211 has good conductivity and biocompatibility. At the same time, the shape of the abutment joint 211 can be designed to be an ergonomic shape such as a hemisphere or an ellipsoid, so that the abutment joint 211 can better fit the user's skin surface, and the conductive strip 212 extends in a direction parallel to the fitting surface 121, that is, the extension direction of the conductive strip 212 is set at an angle to the direction in which the abutment joint 211 abuts the user's skin, preferably vertically, so that the abutment joint 211 can directly abut against the user's skin surface. At the same time, when the abutment joint 211 abuts against the user's skin, the abutment joint 211 is subjected to force to push one end of the conductive strip 212 to produce a slight displacement, and because the conductive strip 212 is a strip-shaped structure, the conductive strip 212 can be deformed in at least a local area along the strip extension direction, so that the abutment joint 211 located at the end of the conductive strip 212 has a certain deformation space, so that the abutment joint 211 can better fit the user's skin, reduce the displacement of the detection electrode 2 or poor contact caused by human body movement or skin deformation, and other problems, so as to better contact the user's skin for blood sugar testing, thereby ensuring the continuity and accuracy of blood sugar testing.

[0043] In one embodiment, if Figure 5As shown, the abutment joint 211 includes an abutment section 2111 and a recessed section 2112. The recessed section 2112 is provided at the end of the conductive strip 212 and is located between the abutment section 2111 and the conductive strip 212. The recessed section 2112 is provided in the mounting hole 122. The abutment section 2111 protrudes from the fitting surface 121 and is located at the periphery of the opening of the mounting hole 122.

[0044] In this embodiment, the abutment section 2111 and the recessed section 2112 are connected, wherein the recessed section 2112 is arranged at the end portion of the conductive strip 212 extending along the strip direction, and the abutment section 2111 is arranged at the side of the recessed section 2112 away from the connection with the conductive strip 212, so that the recessed section 2112 is located between the conductive strip 212 and the abutment section 2111. At the same time, the recessed section 2112 is arranged in the mounting hole 122, and the outer wall of the recessed section 2112 abuts against the hole wall of the mounting hole 122, and the abutment section 2111 is arranged at the hole mouth position of the mounting hole 122, and the side of the abutment section 2111 facing the recessed section 2112 abuts against the fitting surface 121, and the side of the abutment section 2111 facing away from the recessed section 2112 abuts against the user's skin.

[0045] It can be understood that by setting the recessed section 2112, the entire recessed section 2112 can be limited in the mounting hole 122, and the recessed section 2112 is limited by the abutment joint 211 and the conductive strip 212 at both ends of the mounting hole 122, so that the abutment joint 211 is limited in the mounting hole 122, thereby ensuring that the position of the abutment joint 211 relative to the base 1 is fixed. When the base 1 fits the user's skin, the abutment joint 211, which is relatively fixed in position to the base 1, also always abuts the user's skin, avoiding displacement of the detection electrode 2 due to deformation of the user's skin and muscle movement, ensuring good fit and abutment between the detection electrode 2 and the user's skin, and ensuring the continuity and accuracy of blood sugar detection.

[0046] In one embodiment, if Figures 2 to 4 as well as Figure 6 As shown, the sensor 100 also includes a conductive terminal 3, which includes a contact portion 31 and a connecting portion 32, wherein the contact portion 31 is arranged at the end of the connecting portion 32; the contact portion 31 electrically abuts the detection electrode 2 and the external circuit along a direction perpendicular to the bonding surface 121, and the connecting portion 32 extends along a direction parallel to the bonding surface 121.

[0047] In this embodiment, the sensor 100 also includes a conductive terminal 3, which is arranged on the substrate 1. The conductive terminal 3 is electrically connected or electrically abutted with the detection electrode 2 and the external circuit to transmit the electrical signal about the blood sugar level detected by the detection electrode 2 to the external circuit and equipment. The conductive terminal 3 includes a contact portion 31 and a connecting portion 32. The connecting portion 32 is extended in a strip shape. The contact portion 31 is arranged at both ends of the connecting portion 32. At the same time, the contact portion 31 arranged at one end of the connecting portion 32 is electrically connected or electrically abutted with the detection electrode 2, and the contact portion 31 arranged at the other end of the connecting portion 32 is electrically connected or electrically abutted with the external circuit. At the same time, the contact portion 31 is electrically abutted or electrically connected to the detection electrode 2 and the external circuit along a direction perpendicular to the bonding surface 121, and the connecting portion 32 extends along a direction parallel to the bonding surface 121.

[0048] It can be understood that the connecting portion 32 can be made of elastic material. When the user's skin is deformed, the base 1 will be displaced accordingly. When the position of the base 1 relative to the user's skin surface changes, the conductive terminal 3 provided on the base 1 will also slightly move. At this time, the contact portion 31 of the conductive terminal 3 will slightly move in a direction perpendicular to the fitting surface 121, that is, in a direction perpendicular to the user's skin. In order to reduce the micro-movement of the contact portion 31 in this direction and ensure the stability of the electrical connection between the contact portion 31 and the detection electrode 2 and the external circuit, the connecting portion 32 is configured to extend in a direction parallel to the fitting surface 121. That is, when the contact portions 31 at both ends of the connecting portion 32 slightly move, the connecting portion 32 can offset the micro-movement of the contact portion 31 through its own deformation, thereby ensuring the connection stability between the conductive terminal 3 and the detection electrode 2 and the external circuit, and ensuring the continuity and accuracy of blood sugar detection.

[0049] In one embodiment, if Figure 4 As shown, the detection electrode 2 is arranged to extend in a curve in a direction perpendicular to the fitting surface 121; it can be understood that the detection electrode 2 is arranged to extend in a curve in a direction perpendicular to the user's skin, so that the detection electrode 2 has better retractability, so that when the detection electrode 2 protrudes more from the substrate 1 and abuts against the user's skin, it can shrink moderately through its curved structure, thereby reducing the abutment force of the detection electrode 2 on the user and improving the user's comfort. In addition, the detection electrode 2 extending in a curve can also adaptively adjust the distance between it and the user's skin, so as to better contact the user's skin for blood sugar detection, thereby ensuring the continuity and accuracy of blood sugar detection.

[0050] Alternatively, if Figures 1 to 3As shown, the sensor 100 includes a plurality of detection electrodes 2, and the plurality of detection electrodes 2 are arranged at intervals on the substrate 1; it can be understood that the sensor 100 has a plurality of detection electrodes 2 arranged at intervals on the substrate 1, and the plurality of detection electrodes 2 are distributed on the side of the substrate 1 facing the user's skin to form an electrode array, even if a certain detection electrode 2 is temporarily detached due to movement of the skin or muscles, the other detection electrodes 2 can still continue to work, thereby ensuring the continuity and accuracy of the data.

[0051] In one embodiment, the sensor 100 also includes an adhesive tape, which is arranged on the periphery of the substrate 1; it can be understood that the sensor 100 also includes an adhesive tape, which is arranged on the substrate 1 and is arranged around the substrate 1, that is, located at the periphery of the substrate 1; the extension plane of the adhesive tape is arranged roughly parallel to the user's skin, and the sensor 100 can be fixed to the user's skin surface by arranging the adhesive tape, so that the detection electrode 2 can contact the user's skin as much as possible for blood sugar detection, thereby improving the fit between the overall sensor 100 and the detection electrode 2 arranged on the sensor 100 and the user's skin. At the same time, it can also reduce the deformation of the detection segment caused by changes in the user's skin and muscles, reduce the risk of breaking the flexible circuit board, and improve the service life of the flexible circuit board and the sensor 100.

[0052] Alternatively, if Fig. 9 As shown, the sensor 100 also includes a strap 4, one end of which is connected to the base 1, and the other end of the strap 4 is movably connected to the base 1; in this embodiment, the sensor 100 is also provided with a strap 4, the strap 4 can be made of elastic silicone or elastic rubber material, or can be made of fabric material, and a first mounting groove and a second mounting groove that are relatively arranged are provided on the base 1 of the sensor 100, one end of the strap 4 is inserted into the first mounting groove, and the other end of the strap 4 is inserted into the second mounting groove.

[0053] It can be understood that by providing a strap 4 and making the strap 4 be mounted on the user's arm or waist, the sensor 100 can be fixed in a designated area of ​​the arm or abdomen, and the binding made of elastic silicone rubber material or fabric material also has a certain elasticity. Through the elasticity of the strap 4, the sensor 100 can be tightly attached to the user's skin surface, especially the detection electrode 2 can be tightly attached to the user's skin surface, so as to improve the accuracy of the detection electrode 2 in obtaining blood sugar levels.

[0054] At the same time, the strap 4 inserted into the second mounting groove can also be movably connected to the base 1, such as by providing a Velcro or adhesive layer or a snap-on structure or a mushroom head structure at one end of the strap 4, so that after the strap 4 passes through the second mounting groove, the Velcro, adhesive layer, snap-on structure and mushroom head structure can be detachably connected to the strap 4 again to adjust the length of the strap 4, thereby adapting to different users and adjusting the fit between the sensor 100 and the user's skin.

[0055] In one embodiment, if Figure 3 and Figure 4 As shown, the base 1 includes a base plate 11 and a mounting plate 12. The mounting plate 12 is arranged on the base plate 11. A bonding surface 121 is arranged on the side of the mounting plate 12 facing away from the base plate 11. The base plate 11 and the mounting plate 12 are elastically connected.

[0056] In this embodiment, the substrate 11 is the main supporting structure of the base 1, and the substrate 11 is a plate-shaped structure. The mounting plate 12 is arranged on the side of the substrate 11 facing the user's skin, so that the mounting plate 12 is located between the substrate 11 and the user. In addition, a bottom groove can also be provided on the side of the substrate 11 facing the user's skin, and the mounting plate 12 is limited in the bottom groove, so that the edge of the mounting plate 12 is connected to the side wall of the bottom groove, or a limiting groove is provided on the side wall of the bottom groove, so that the edge of the mounting plate 12 is arranged in the limiting groove and connected to the groove wall of the limiting groove, which is not limited here.

[0057] Furthermore, a fitting surface 121 is provided on the side of the mounting plate 12 facing away from the substrate 11, and the fitting surface 121 is provided with the above-mentioned mounting hole 122, the detection electrode 2 is arranged in the mounting hole 122, and the detection electrode 2 partially protrudes out of the fitting surface 121 of the mounting plate 12 to contact the user's skin. At the same time, the substrate 11 and the mounting plate 12 are elastically connected, for example, an elastic member such as a spring, a spring sheet or the like is arranged between the substrate 11 and the mounting plate 12; or at least one of the substrate 11 and the mounting plate 12 is made of elastic material, and by setting the substrate 11 and / or the mounting plate 12 to be made of elastic material, the substrate 11 and the mounting plate 12 are elastically connected at the connection.

[0058] It can be understood that the substrate 11 and the mounting plate 12 are set to be elastically connected, so that when the substrate 11 and / or the mounting plate 12 are in contact with the skin, they can be deformed along with the movement of the skin and muscles, especially the mounting plate 12 facing and fitting the user's skin can be deformed accordingly, thereby ensuring that the substrate 11 and the mounting plate 12 can fit the user's skin well, and the detection electrode 2 provided on the mounting plate 12 can always abut against the user's skin, thereby improving the detection accuracy of the sensor 100 and the detection electrode 2 provided on the sensor 100, so as to accurately reflect the current blood sugar level of the test subject.

[0059] In one embodiment, the base 1 further includes an elastic member, which is located between the base 1 and the mounting plate 12 ; one end of the elastic member is connected to the base 1 , and the other end of the elastic member is connected to the mounting plate 12 .

[0060] In this embodiment, the elastic member can be a spring or a spring sheet, and the base 1 can include multiple springs or multiple spring sheets, and the multiple springs or multiple spring sheets are spaced between the base 1 and the mounting plate 12. At the same time, the elastic member can also be a buffer layer structure with elastic material, and the buffer layer structure is located between the base 1 and the mounting plate 12. The buffer layer structure extends along the main structure direction of the mounting plate 12 and the base plate 11, and its material can be rubber, silicone, polyurethane elastomer, etc.

[0061] It can be understood that by arranging an elastic member between the substrate 11 and the mounting plate 12, the mounting plate 12 can be supported to a certain extent, so that the mounting plate 12 protrudes and extends in the direction away from the substrate 11, that is, toward the user's skin, so that the mounting plate 12 can better fit the user's skin, and the detection electrodes 2 arranged on the mounting plate 12 can all abut against the user's skin. At the same time, the elastic member can also make the connection between the mounting plate 12 and the substrate 11 more flexible. On the basis of the fixed connection between the substrate 11 and the user's skin, the mounting plate 12 can also flexibly adapt to the daily movement of the skin and muscles, reduce the probability of the mounting plate 12 and the detection electrode 2 arranged on the mounting plate 12 being separated from the user's skin, and improve the continuity and accuracy of blood sugar detection.

[0062] In one embodiment, if Figure 4 As shown, the periphery of the mounting plate 12 is connected to the base 1 , and the mounting plate 12 and the base plate 11 enclose a regulating cavity 13 ; the sensor 100 further includes a driving pump, which is in communication with the regulating cavity 13 .

[0063] In this embodiment, the mounting plate 12 is made of an elastic material, and the periphery of the mounting plate 12 is connected to the base 1, so that the mounting plate 12 and the base plate 11 enclose a regulating cavity 13, and the regulating cavity 13 is a closed cavity. Gas or liquid is arranged in the regulating cavity 13, and the mounting plate 12 made of elastic material is deformed by increasing the pressure of the gas or liquid inside the regulating cavity 13, and the direction in which the mounting plate 12 is deformed is toward the user's skin.

[0064] It can be understood that by providing the adjustment chamber 13 and making the pressure inside the adjustment chamber 13 greater than the pressure outside the adjustment chamber 13, the mounting plate 12 made of elastic material can be deformed toward the user's skin, thereby ensuring that the mounting plate 12 can always fit the user's skin under the action of the internal pressure, and the detection electrode 2 located on the mounting plate 12 can always fit the user's skin, thereby improving the continuity and accuracy of blood sugar detection.

[0065] In this embodiment, the sensor 100 further includes a driving pump, which is connected to the regulating chamber 13; it can be understood that the driving pump is a micro driving pump, which can pump air into the regulating chamber 13 to adjust the pressure inside the regulating chamber 13, thereby adjusting the deformation degree of the mounting plate 12, to adjust the degree of fit between the mounting plate 12 and the sensor 100 and the user's skin, so as to improve the fit between the sensor 100 and the user's skin on the basis of ensuring the comfort of the user wearing the sensor 100. At the same time, in another embodiment of the present invention, the sensor 100 further includes an airbag, which is arranged in the regulating chamber 13, and the airbag is connected to the driving pump, and the driving pump can pump air into the airbag to adjust the volume of the regulating chamber 13 by adjusting the size of the airbag, thereby increasing the internal air pressure of the airbag to push the mounting plate 12 to deform in the direction of the user's skin, and make the mounting plate 12 always better fit the user's skin. Optionally, the material of the mounting plate 12 is fabric material.

[0066] The present invention also provides a blood glucose detector, which includes a sensor 100 and a transmitter, wherein the transmitter is communicatively connected to the sensor 100. The specific structure of the sensor 100 refers to the aforementioned embodiment. Since the blood glucose detector adopts all the technical solutions of all the aforementioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the aforementioned embodiments, which will not be described one by one here.

[0067] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A sensor, characterized in that: The sensor comprises: A base, wherein the base is provided with a fitting surface, the fitting surface is configured to fit a user, and the fitting surface is provided with a mounting hole; A detection electrode, the detection electrode is arranged in the mounting hole, and a part of the detection electrode protrudes from the fitting surface; The base material is elastic material.

2. The sensor according to claim 1, characterized in that The detection electrode comprises an elastic body and conductive particles, the elastic body is arranged in the mounting hole, and a part of the elastic body protrudes from the fitting surface; The conductive particles are disposed on the elastic body.

3. The sensor according to claim 2, characterized in that The detection electrode is provided with a deformation cavity, the elastic body encloses and forms the deformation cavity, and the deformation cavity is airtightly arranged.

4. The sensor according to claim 1, characterized in that The detection electrode comprises an abutment joint and a conducting strip, wherein the abutment joint is arranged at an end of one end of the conducting strip, and the abutment joint is located in the mounting hole and protrudes out of the fitting surface; The conducting strip extends in a direction parallel to the bonding surface, and the abutting head pushes the conducting strip to deform in a direction perpendicular to the bonding surface.

5. The sensor according to claim 4, characterized in that The abutment head comprises an abutment section and a recessed section, wherein the recessed section is arranged at the end of the conductive strip and is located between the abutment section and the conductive strip, and the recessed section is arranged in the mounting hole; The abutting section protrudes from the fitting surface and is located at the periphery of the opening of the mounting hole.

6. The sensor according to any one of claims 1 to 5, characterized in that The sensor further comprises a conductive terminal, the conductive terminal is arranged on the substrate, the conductive terminal comprises a contact portion and a connecting portion, the contact portion is arranged at an end of the connecting portion; The contact portion electrically contacts the detection electrode and the external circuit along a direction perpendicular to the bonding surface, and the connecting portion extends along a direction parallel to the bonding surface.

7. The sensor according to any one of claims 1 to 5, characterized in that The detection electrode is arranged to extend in a curve in a direction perpendicular to the bonding surface; And / or, the sensor includes a plurality of the detection electrodes, and the plurality of the detection electrodes are arranged on the substrate at intervals.

8. The sensor according to any one of claims 1 to 5, characterized in that The sensor further comprises an adhesive tape, wherein the adhesive tape is arranged on the periphery of the substrate; And / or, the sensor further comprises a strap, one end of the strap is connected to the base, and the other end of the strap is movably connected to the base.

9. The sensor according to any one of claims 1 to 5, characterized in that The base comprises a base plate and a mounting plate, wherein the mounting plate is arranged on the base plate, and the mounting plate is provided with the bonding surface on a side facing away from the base plate; The base plate and the mounting plate are elastically connected.

10. A blood glucose detector, characterized in that: The blood glucose detector comprises: A sensor as claimed in any one of claims 1 to 9; and A transmitter is communicatively connected to the sensor.

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