Real-time blood glucose monitoring device

Abstract

The real-time blood glucose monitoring device comprises a shell, and the shell is provided with a containing space and a mounting opening communicating the containing space with the outside; the monitoring assembly is arranged in the accommodating space and comprises an electronic unit and a detection unit; the puncture assembly is arranged in the containing space and comprises a puncture part, and the puncture part partially penetrates through the monitoring assembly so that the detection unit can be partially contained in the puncture part; the bottom cover is detachably connected with the shell to seal the mounting opening, the bottom cover is provided with a matching wall which is arranged in the containing space in a protruding and extending mode, the matching wall is provided with a first sealing piece which abuts against the bottom face of the monitoring assembly in a sealing mode to form a sealing cavity, and part of the detection unit and part of the puncturing piece are arranged in the sealing cavity; the area defined by the first sealing piece is smaller than the area of the cross section of the sealing cavity. And the cross section area of the sealing cavity is larger than the area enclosed by the first sealing element, so that the airtightness test is easier to carry out on the basis of ensuring the sealing effect, and the test precision and accuracy are improved.

Description

Technical Field

[0001] The present application belongs to the technical field of medical equipment, and specifically relates to a real-time blood glucose monitoring device. Background Art

[0002] CGM (Continuous Glucose Monitoring) stands for continuous glucose monitoring system, which is a medical device used to continuously monitor the blood glucose levels of diabetic patients. Compared with traditional blood glucose monitoring methods, CGM provides continuous and detailed blood glucose level data, which can help users better manage their blood glucose status.

[0003] The sensor used to obtain the blood sugar value in the host in real time and the electronic components that send signals to the display device are generally integrated in the monitoring component. After the implantation is completed, the monitoring component is attached to the surface of the host's skin for continuous monitoring. During the implantation process, the sensor is accommodated in the puncture needle, and the host's skin is pierced by the puncture needle to implant the sensor into the host. Therefore, before use, the puncture needle and the sensor part often have higher sterility requirements, so it is necessary to set up a sealed cavity to accommodate the puncture needle and the sensor.

[0004] In the prior art, in order to avoid the sticky part of the monitoring component, the location and size of the sealed cavity are limited, and a good airtightness test cannot be achieved, so that the sealing effect cannot be guaranteed. If the volume of the sealed cavity is too large, it means that the contact area between its cavity wall and the monitoring component is large, which will cause the viscosity of the monitoring component to decrease. If the volume of the sealed cavity is too small, it will affect the accuracy and precision of the airtightness test. Summary of the invention

[0005] The present application provides a real-time blood glucose monitoring device to solve the problem that the volume of the sealed space for accommodating the puncture needle and the sensor is difficult to set due to the influence of the sticky layer at the bottom of the monitoring component, the operation is difficult during the airtightness test, and the accuracy and precision of the test are easily affected.

[0006] The technical solution adopted in this application is:

[0007] A real-time blood glucose monitoring device comprises a shell, the shell having a accommodating space and an installation opening connecting the accommodating space and the outside; a monitoring component, the monitoring component is arranged in the accommodating space, the monitoring component comprises an electronic unit and a detection unit; a puncture component, the puncture component is arranged in the accommodating space, the puncture component comprises a puncture piece, the puncture piece partially passes through the monitoring component to accommodate part of the detection unit inside the puncture piece; and a bottom cover, the bottom cover is detachably connected to the shell to close the installation opening, the bottom cover has a matching wall protruding in the accommodating space, the matching wall is provided with a first sealing component that is in sealing contact with the bottom surface of the monitoring component to form a sealed cavity, part of the detection unit and part of the puncture piece are arranged in the sealed cavity, and the area enclosed by the first sealing component is smaller than the area of ​​the cross section of the sealed cavity.

[0008] Preferably, the sealed cavity comprises a sealed channel and a closed chamber, the end of the piercing member extends from the sealed channel into the closed chamber, and the cross-sectional area of ​​the closed chamber is larger than the area enclosed by the first sealing member.

[0009] Preferably, the puncture assembly also includes a needle seat, the puncture member is arranged on the needle seat, the monitoring assembly includes an upper shell and a lower shell, and a second seal is arranged between the upper shell and the needle seat; the needle seat, the monitoring assembly, the matching wall and the first seal and the second seal together form a sealed cavity.

[0010] Preferably, the real-time blood glucose monitoring device further comprises a magnetic member disposed on the bottom cover, and the magnetic member is used to switch the power consumption mode of the electronic unit.

[0011] Preferably, the bottom cover is also provided with a mounting portion protruding toward the monitoring component, and the magnetic member is arranged on the mounting portion.

[0012] Preferably, the matching wall surrounds the outer peripheral side of the mounting portion, and the sealing cavity is formed between the mounting portion and the matching wall.

[0013] Preferably, the mounting portion has a mounting cavity formed concavely toward the monitoring component, the magnetic component is arranged in the mounting cavity, and a stopper is also arranged in the mounting cavity, and the stopper is used to limit the magnetic component from escaping from the mounting cavity.

[0014] Preferably, the real-time blood glucose monitoring device also includes a booster member arranged in the shell, which can drive the puncture assembly to move along a first direction to perform a needle insertion action, and the puncture member can move along a second direction relative to the booster member to perform a needle withdrawal action, and the first direction is opposite to the second direction.

[0015] Preferably, the booster comprises a first pushing portion and a second pushing portion, the first pushing portion is fixedly cooperated with the monitoring component, the second pushing portion is used to accommodate the puncture component, and the first pushing portion and the second pushing portion are integrally formed.

[0016] Preferably, one of the shell and the booster is provided with guide ribs extending along the first direction, and the other is provided with matching grooves extending along the first direction, the guide ribs and the matching grooves are arranged in one-to-one correspondence, and the guide ribs are symmetrically arranged on both sides of the booster.

[0017] Preferably, the real-time blood glucose monitoring device also includes a booster member arranged in the shell, the booster member can drive the puncture assembly to move along the first direction to perform the needle insertion action, the puncture assembly also includes a needle seat, the puncture member is arranged on the needle seat, one of the booster member and the needle seat is provided with a guide rib, and the other is provided with a guide groove, the guide rib includes a contact portion that contacts the guide groove, and the cross-sectional area of ​​the contact portion gradually decreases along the direction approaching the guide groove.

[0018] Preferably, the guide groove is surrounded by a contact wall and a first limiting wall and a second limiting wall respectively extending from both ends of the contact wall in a direction perpendicular to the contact wall. The guide rib contacts the contact wall, the first limiting wall is provided with a first contact portion extending into the guide groove, the second limiting wall is provided with a second contact portion extending into the guide groove, the first contact portion and the second contact portion are respectively in contact with the guide rib, and the cross-sectional areas of the first contact portion and the second contact portion gradually decrease in the direction approaching the guide rib.

[0019] Preferably, the guide grooves are relatively located on two sides of the booster or the needle seat.

[0020] Preferably, the real-time blood glucose monitoring device also includes a trigger member arranged on the shell, the trigger member is used to trigger the movement of the puncture member, the bottom cover has a limiting portion, and when the bottom cover is installed on the shell, the limiting portion cooperates with the trigger member stopper to limit the movement of the trigger member.

[0021] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0022] The matching wall on the bottom cover abuts against the bottom surface of the monitoring component to form a sealed cavity. On the one hand, the matching wall can support the monitoring component, so that the monitoring component is firmly fixed inside the shell, and will not fall off in advance during transportation, storage, etc., improve the structural stability and cleanliness, and greatly reduce the risk of false triggering. On the other hand, the matching wall on the bottom cover abuts against the bottom surface of the monitoring component to further form a sealed cavity. On the one hand, the matching wall can support the monitoring component, so that the monitoring component is firmly fixed inside the shell, and will not fall off in advance during transportation, storage, etc., improve the structural stability and cleanliness, and greatly reduce the risk of false triggering. On the other hand, the cross-sectional area of ​​the first sealing member abutted by the matching wall and the monitoring component is small, and the contact area between the matching wall and the bottom surface of the monitoring component is appropriately reduced, which can avoid the matching wall from squeezing the adhesive layer too much, causing local wrinkles in the adhesive layer, and affecting the adhesive stability. The cross-sectional area of ​​the sealed cavity is large, which can greatly increase the volume of the sealed cavity. On the basis of ensuring the sealing effect, it makes the airtightness test easier to carry out. When the airtightness test is carried out on a sealed cavity with a large volume, the internal air pressure fluctuation is small, and the air pressure can be quickly stabilized, thereby improving the test efficiency. And when the air pressure changes slightly, it can be clearly detected, thereby improving the test precision and accuracy, and greatly improving product yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0024] Figure 1 This is a structural explosion view of a real-time blood glucose monitoring device according to one embodiment of the present application;

[0025] Figure 2 A cross-sectional view of a real-time blood glucose monitoring device in a storage state according to an embodiment of the present application;

[0026] Figure 3 for Figure 2 Magnified view of area A in the middle;

[0027] Figure 4 A cross-sectional view of a real-time blood glucose monitoring device according to an embodiment of the present application when the bottom cover is removed;

[0028] Figure 5 A cross-sectional view of a real-time blood glucose monitoring device according to an embodiment of the present application when the booster moves into position along a first direction;

[0029] Figure 6 A transverse cross-sectional view of a real-time blood glucose monitoring device according to an embodiment of the present application;

[0030] Figure 7 A cross-sectional view of a monitoring component according to an embodiment of the present application;

[0031] Figure 8 This is a schematic diagram of the structure of a booster member in one implementation mode of the present application;

[0032] Fig. 9 It is a schematic structural diagram of a bottom cover in one embodiment of the present application.

[0033] in:

[0034] 1 housing; 11 upper housing; 12 lower housing; 13 guide ribs; 14 mounting opening; 15 first guide channel;

[0035] 2 booster; 21 first push part; 22 second push part; 23 second guide channel; 24 guide column; 25 matching groove; 26 guide convex rib; 27 stop rib;

[0036] 3 puncture assembly; 31 needle seat; 311 first limiting wall; 312 trigger wing; 314 contact portion; 315 first contact portion; 316 second contact portion; 317 guide groove; 318 second limiting wall; 319 contact wall; 32 puncture member;

[0037] 4 monitoring component; 41 electronic unit; 42 detection unit; 43 adhesive layer; 44 second sealing member; 45 first sealing member; 46 upper shell; 47 lower shell; 48 through hole; 49 installation chamber;

[0038] 5. Limiting parts;

[0039] 6 trigger parts;

[0040] 7 bottom cover; 71 cover body; 72 decorative member; 721 mounting portion; 722 mounting cavity; 73 matching wall; 731 sealing cavity; 732 sealing channel; 733 closed chamber; 734 avoidance area; 735 sealing area; 7351 through hole; 7352 mounting position; 736 gap; 74 stopper; 75 magnetic member;

[0041] 8 boost spring;

[0042] 9 Needle withdrawal spring. DETAILED DESCRIPTION

[0043] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0044] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0045] In addition, in the description of the present application, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0046] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the present application, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "implementation method", "example", "one embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0048] like Figure 1 , Figure 2 As shown, a real-time blood glucose monitoring device comprises a housing 1, the housing 1 having a containing space and a mounting opening 14 connecting the containing space and the outside; a monitoring assembly 4, the monitoring assembly 4 being arranged in the containing space, the monitoring assembly 4 comprising an electronic unit 41 and a detection unit 42; a puncture assembly 3, the puncture assembly 3 being arranged in the containing space, the puncture assembly 3 comprising a puncture member 32, the puncture member 32 partially passes through the monitoring assembly 4 so as to partially accommodate the detection unit 42 inside the puncture member 32; and a bottom cover 7, the bottom cover 7 is detachably connected to the housing 1 to close the mounting opening 14, the bottom cover 7 has a matching wall 73 protruding in the containing space, the matching wall 73 is provided with a first sealing member 45 which is sealingly abutted against the bottom surface of the monitoring assembly 4 to form a sealing cavity 731, part of the detection unit 42 and part of the puncture member 32 are arranged in the sealing cavity 731, and the area enclosed by the first sealing member 45 is smaller than the area of ​​the cross section of the sealing cavity 731.

[0049] It should be noted that the product is implanted in a first direction, the first direction is the axial direction of the shell 1, and the cross section is a surface perpendicular to the first direction.

[0050] Preferably, if Figure 1 As shown, the housing 1 is a split structure, including an upper housing 11 and a lower housing 12, which are spliced ​​to form a receiving space. Of course, the housing 1 can also be an integrated structure, which is not limited here.

[0051] Preferably, the bottom surface of the monitoring component 4 is provided with an adhesive layer 43 for bonding and fixing with the host skin surface, so that the monitoring component 4 is fixed to the host skin surface to achieve continuous blood sugar monitoring.

[0052] In the present application, the bottom cover 7 is detachably mounted at the mounting opening 14 of the outer shell 1. Before the user removes the bottom cover 7, the bottom cover 7 cooperates with the outer shell 1 to seal the accommodation space, and the puncture assembly 3, the monitoring assembly 4 and other components are completely accommodated in the accommodation space, which not only makes the overall appearance of the product more compact and simple, and is convenient for transportation and storage, but also prevents the internal components from being contaminated by external dust, impurities, etc., to a certain extent, ensuring cleanliness before use, which is conducive to warehousing.

[0053] In addition, the mating wall 73 on the bottom cover 7 abuts against the bottom surface of the monitoring component 4 to further form a sealed cavity 731. On the one hand, the mating wall 73 can support the monitoring component 4, so that the monitoring component 4 is firmly fixed inside the housing 1, and will not fall off in advance during transportation, storage, etc., thereby improving the structural stability and cleanliness, and greatly reducing the risk of false triggering. On the other hand, the cross-sectional area surrounded by the first sealing member 45 where the mating wall 73 abuts against the monitoring component 4 is relatively small, and the contact area between the mating wall 73 and the bottom surface of the monitoring component 4 is appropriately reduced, which can avoid the mating wall 73 from squeezing the adhesive layer 43 too much, causing local wrinkles in the adhesive layer 43, and affecting the adhesive stability. The cross-sectional area of ​​the sealed cavity 731 is relatively large, which can greatly increase the volume of the sealed cavity 731. On the basis of ensuring the sealing effect, the airtightness test is easier to carry out. When the airtightness test is carried out on the sealed cavity 731 with a larger volume, the internal air pressure fluctuation is relatively small, and the air pressure can be quickly stabilized, thereby improving the test efficiency. And when the air pressure changes slightly, it can be clearly detected, thereby improving the test precision and accuracy, and greatly improving product yield.

[0054] It is understandable that if Figure 3 As shown, the first sealing member 45 is disposed on the top of the matching wall 73, and is used to abut against the monitoring component 4 to form a seal. The detection unit 42 includes a sensor, and the sensor has a connecting portion and a contact pin, wherein the contact pin is located in the through hole 48 of the monitoring component 4 and accommodated in the piercing member 32. The electronic unit 41 includes a transmitter and a circuit structure.

[0055] It should be noted that the present application does not limit the structure of the sealing cavity 731. In one embodiment, the sealing cavity 731 is formed by the matching wall 73, and its cross section is larger than the area surrounded by the first sealing member 45. In another embodiment, Figure 2 , Fig. 9 As shown, the sealing cavity 731 includes a sealing channel 732 and a closed chamber 733 located downstream of the sealing channel 732 along the direction in which the piercing member 32 extends, wherein the first sealing member 45 surrounds the outer circumference of the sealing channel 732, and the area enclosed by the first sealing member 45 is larger than the cross-sectional area of ​​the sealing channel 732, and the cross-sectional area of ​​the closed chamber 733 is larger than the area enclosed by the first sealing member 45.

[0056] The sealing cavity 731 includes a sealing channel 732 and a closed chamber 733. The sealing channel 732 is located at the abutting position between the matching wall 73 and the monitoring component 4, and is used for the piercing member 32 to pass through. The closed chamber 733 is located downstream of the sealing channel 732, so that the piercing member 32 extends into the closed chamber 733 through the sealing channel 732. Among them, the cross-sectional area of ​​the abutting surface is small and adapted to the width of the piercing member 32. The distance between the outer peripheral side of the piercing member 32 and the inner wall of the sealing channel 732 is small, so that the sealing channel 732 can guide and limit the insertion of the piercing member 32. When the bottom cover 7 and the housing 1 are assembled, the sealing channel 732 can be used to position the piercing member 32. At the same time, after the assembly is completed, the inner wall of the sealing channel 732 can stop the piercing member 32 when it shakes to limit its shaking, thereby making the piercing member 32 more stable and reducing the deviation caused by the large shaking of the piercing member 32.

[0057] It should be noted that the present application does not limit the structure of the matching wall 73. In one embodiment, it can be a structure without a top wall, and the top of the side wall abuts against the bottom surface of the monitoring component 4, so that the bottom surface of the monitoring component 4 constitutes the top wall of the sealing cavity 731. In another embodiment, Figure 2 , Figure 3 , Fig. 9 As shown, the matching wall 73 has a top wall, and the top wall is provided with a through hole 7351 , which is connected with the through hole 48 on the bottom surface of the monitoring component 4 for the piercing member 32 to pass through, thereby forming a sealing channel 732 .

[0058] As a preferred embodiment of the present application, Figure 3 , Fig. 9As shown, the top of the matching wall 73 has a sealing area 735 and an avoidance area 734. The sealing area 735 is arranged corresponding to the puncture component 3. The first sealing member 45 is arranged in the sealing area 735 and is sealed and abutted against the monitoring component 4. In the first direction, there is a gap 736 between the avoidance area 734 and the monitoring component 4. The first sealing member 45 is provided with a through hole 7351 for the puncture component 32 to pass through.

[0059] The matching wall 73 protrudes toward the inside of the housing 1 to form a closed chamber 733, wherein the first sealing member 45 of the matching wall 73 abuts against the bottom surface of the monitoring component 4 to form a sealing channel 732, the avoidance area 734 and the monitoring component 4 have a gap 736 in the first direction, and the top of the matching wall 73 is not entirely abutted against the monitoring component 4. Then, on the basis of ensuring the sealing effect and the support stability, the contact area between the matching wall 73 and the monitoring component 4 is appropriately reduced. Since the bottom surface of the monitoring component 4 is provided with a layer of adhesive layer 43 for adhesively fixing with the host skin surface, the contact area between the matching wall 73 and the bottom surface of the monitoring component 4 is appropriately reduced. On the one hand, it can avoid that the matching wall 73 exerts too much pressure on the adhesive layer 43, causing the adhesive layer 43 to be partially wrinkled, affecting the adhesive stability. On the other hand, it can avoid that when the bottom cover 7 is moved and disassembled (for example, rotated relative to the monitoring component 4), the matching wall 73 forms a large pulling force or twisting force on the adhesive layer 43, causing the adhesive layer 43 to wrinkle or warp.

[0060] At the same time, the setting of the avoidance area 734 also leaves installation space for other components such as the magnetic part 75. The magnetic part 75 and other components can be set in the gap 736 to further make the structure more compact, optimize the spatial layout, and reduce the size of the entire machine.

[0061] Specifically, Figure 3 , Fig. 9 As shown, the top wall of the matching wall 73 is partially raised upward to form a sealing area 735, so that the upper end surface of the sealing area 735 is higher than the upper end surface of the avoidance area 734. The relative positions of the sealing area 735 and the avoidance area 734 are determined by the position of the piercing member 32. In one embodiment, as Figure 2 As shown, the position where the piercing member 32 passes through the monitoring assembly 4 is eccentric to the monitoring assembly 4, so the sealing area 735 is correspondingly arranged and is also eccentric to the monitoring assembly 4. If the position where the piercing member 32 passes through is concentric to the monitoring assembly 4, the sealing area 735 is also concentric to the monitoring assembly 4.

[0062] Preferably, if Figure 2 , Figure 3As shown, the puncture assembly 3 also includes a needle seat 31, and the puncture member 32 is arranged on the needle seat 31. The monitoring assembly 4 includes an upper shell 46 and a lower shell 47. A second sealing member 44 is provided between the upper shell 46 and the needle seat 31, and a first sealing member 45 is provided between the lower shell 47 and the matching wall 73; the needle seat 31, the monitoring assembly 4 and the matching wall 73 together form a sealed cavity 731.

[0063] After the puncture assembly 3, the monitoring assembly 4 and the bottom cover 7 are assembled, the needle seat 31 and the upper shell 46 squeeze the second sealing member 44 from both sides to seal the gap 736 between the three, and the lower shell 47 and the matching wall 73 squeeze the first sealing member 45 to seal the gap between the three. Thus, the sealing cavity 731 extends upward to the needle seat 31, that is, the sealing cavity 731 extends from the needle seat 31 to the closed chamber 733. In this way, it is ensured that the part of the puncture member 32 extending out of the needle seat 31 is completely located in the sealing cavity 731, thereby ensuring the sterility of the exposed part of the puncture member 32.

[0064] Specifically, in the present embodiment, the through-hole at the top of the mating wall 73 is connected to the through-hole 48 on the monitoring component 4, so that the second sealing member 44, the through-hole 48 on the monitoring component 4, the first sealing member 45, and the top wall of the mating wall 73 together form a sealing channel 732, so that the sealing cavity 731 continues to extend upward at the through-hole on the top wall of the mating wall 73 to the needle seat 31.

[0065] like Fig. 9 As shown, a mounting position 7352 is provided at the top of the matching wall 73 , so that the first sealing member 45 is plugged and fixed to the mounting position 7352 , thereby improving the position stability of the first sealing member 45 .

[0066] Preferably, if Figure 1 , Figure 2 As shown, a limiting member 5 is also provided inside the housing 1. The limiting member 5 has a through hole for the needle seat 31 to pass through. The limiting member 5 can move so that it has a limiting state and an unlocking state. In the limiting state, the limiting member 5 forms a limit on the needle seat 31 along the second direction, so that the puncture assembly 3 cannot perform the needle withdrawal action. In the unlocking state, the restriction on the needle seat 31 is released, so that it can be triggered to perform the needle withdrawal action. When leaving the factory, the limiting member 5 is set in the limiting state. Before use, the user needs to switch the limiting member 5 to the unlocking state through operation.

[0067] like Figure 2 As shown, the stopper 5 can press the needle seat 31 so that the needle seat 31 squeezes the second sealing member 44 to ensure the sealing between the needle seat 31 and the upper shell 46. Specifically, the needle seat 31 has a lateral protrusion, and the stopper 5 is located above the lateral protrusion to form an extrusion force on the needle seat 31 toward the second sealing member 44. Alternatively, the outer peripheral side of the needle seat 31 has a stopper groove, and the stopper 5 is located in the stopper groove. This is not limited here.

[0068] As a preference, Figure 2 , Figure 3 , Figure 7 As shown, the upper shell 46 and the lower shell 47 cooperate to form a sealed installation chamber 49 on one lateral side of the through hole 48, so that the installation chamber 49 is misaligned with the through hole 48, wherein the connection parts of the electronic unit 41 and the detection unit 42 are both located in the installation chamber 49, so that the puncture needle will not pass through the electronic unit 41, and there is no need to set an opening on the electronic unit 41, thereby ensuring the integrity of the electronic unit 41.

[0069] In a preferred embodiment of the present application, Figure 2 As shown, the real-time blood glucose monitoring device further includes a magnetic member 75 disposed on the bottom cover 7 , and the magnetic member 75 is used to switch the power consumption mode of the electronic unit 41 .

[0070] Specifically, the electronic unit 41 has a standby state and an activated state, and the magnetic member 75 is used to switch the electronic unit 41 between the two states. When the electronic unit 41 is in the standby state, it is not electrically connected and interacts with the detection unit 42, so as to avoid loss during storage and ensure service life. When the electronic unit 41 is in the activated state, it interacts with the detection unit 42, and at this time, the monitoring component can normally perform signal collection, transmission, and emission functions.

[0071] The present embodiment does not limit the way in which the magnetic member 75 switches the power consumption mode of the electronic unit 41. In a preferred embodiment, the magnetic member 75 changes the magnetic field strength at the electronic unit 41 by moving, so as to switch the power consumption mode of the electronic unit 41. Specifically, Figure 2 As shown, when the bottom cover 7 is installed on the housing 1, the magnetic member 75 extends into the accommodating space, and the distance between the magnetic member 75 and the electronic unit 41 is relatively close. The electronic unit 41 is in the magnetic field of the magnetic member 75, and the electronic unit 41 is shielded under the action of the magnetic field and is in a standby state. When the bottom cover 7 is removed from the housing 1, the magnetic field of the magnetic member 75 no longer acts on the electronic unit 41, or the magnetic field strength is greatly reduced, and the shielding effect on the electronic unit 41 is lost, and the electronic unit 41 switches to an activated state.

[0072] In another embodiment, the power consumption mode of the electronic unit 41 can be switched by adjusting the magnetic pole of the magnetic member 75. For example, when the side of the magnetic member 75 facing the electronic unit 41 is the N pole, the electronic unit 41 is shielded, so that the electronic unit 41 is in a standby state, and when the side of the switching magnetic member 75 facing the electronic unit 41 is the S pole, the electronic unit 41 is activated and in an activated state.

[0073] Specifically, Figure 2As shown, the bottom cover 7 is further provided with a mounting portion 721 protruding toward the monitoring assembly 4 , and the magnetic member 75 is provided on the mounting portion 721 .

[0074] The magnetic component 75 acts on the electronic unit 41 through the magnetic field generated by itself to control the state of the electronic unit 41. By setting the magnetic component 75 on the mounting portion 721 protruding toward the electronic unit 41, the magnetic component 75 is closer to the electronic unit 41, thereby making the magnetic field at the electronic unit 41 denser. The effect of the magnetic component 75 on the electronic unit 41 is more reliable and effective, and the weakening of the magnetic field due to distance is reduced.

[0075] The mounting portion 721 may abut against the bottom surface of the monitoring component 4 to also support the monitoring component 4, or may not abut against the monitoring component 4, which is not limited here.

[0076] Furthermore, if Figure 2 As shown, the matching wall 73 surrounds the outer peripheral side of the mounting portion 721 so that a sealed cavity 731 is formed between the mounting portion 721 and the matching wall 73 .

[0077] The sealing cavity 731 surrounds the outer peripheral side of the mounting portion 721, optimizing the structural layout of the mounting portion 721 and the matching wall 73 on the bottom cover 7, making the structure of the bottom cover 7 more compact, helping to reduce the size of the bottom cover 7 and realizing a miniaturized design of the entire machine. At the same time, the sealing cavity 731 and the mounting portion 721 partially overlap, which can also reduce the radial dimensions of the monitoring component 4 and the bottom cover 7.

[0078] Specifically, the closed chamber 733 surrounds the outer periphery of the mounting portion 721 and is annular in structure. The distance between the outer wall of the mounting portion 721 and the inner wall of the matching wall 73 is greater than the width of the area surrounded by the first sealing member 45 .

[0079] It should be noted that this embodiment does not limit the installation method of the magnetic member 75. In a preferred embodiment, Figure 2 As shown, the mounting portion 721 has a mounting cavity 722 recessed toward the monitoring component 4 , the magnetic member 75 is disposed in the mounting cavity 722 , and a stopper 74 is also disposed in the mounting cavity 722 , and the stopper 74 is used to limit the magnetic member 75 from escaping from the mounting cavity 722 .

[0080] The installation cavity 722 is set to leave enough installation space for the magnetic component 75, and the magnetic component 75 is accommodated in the installation cavity 722, and is blocked by the stopper 74, so that the hidden design of the magnetic component 75 can be realized, and the magnetic component 75 cannot be seen even when the bottom cover 7 is removed. At the same time, the position of the magnetic component 75 can be adjusted by the stopper 74, and the position of the magnetic component 75 can be changed by moving the stopper 74 in the installation cavity 722, thereby making the magnetic component 75 closer to or farther away from the electronic unit 41, so as to keep the magnetic component 75 at the optimal sensing distance.

[0081] In other embodiments, a mounting groove 317 may also be provided on a side of the mounting portion 721 facing the monitoring component 4 or on a side away from the monitoring component 4 for mounting the magnetic component 75 , which is not limited here.

[0082] Preferably, the stopper 74 is a structure made of elastic material, such as silicone, etc. It is inserted into the installation cavity 722 by interference fit. Of course, the stopper 74 can also be fixed in the installation cavity 722 by means of threads, etc., which is not limited here.

[0083] like Figure 1 , Figure 2 As shown, in one embodiment, the bottom cover 7 is a split structure, that is, the bottom cover 7 includes a cover body 71 and a decorative member 72, and a part of the bottom wall of the cover body 71 (the wall on the side away from the housing 1) protrudes toward the monitoring component 4 to form a matching wall 73, forming a closed chamber 733. The end of the closed chamber 733 away from the housing 1 is an opening, and the decorative member 72 is arranged at the opening to block the opening. The mounting portion 721 is arranged on the decorative member 72 and extends into the closed chamber 733. The decorative member 72 is sealed with the opening, and a sealing ring is arranged between the two to ensure the sealing of the closed chamber 733.

[0084] Of course, the bottom cover 7 may also be configured as an integrated structure to further ensure the sealing of the closed chamber 733 and the sealed cavity 731 .

[0085] As a preferred implementation of the present application, Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 8 As shown, the real-time blood glucose monitoring device also includes a booster 2 arranged in the shell 1, the booster 2 can drive the puncture assembly 3 to move along a first direction to perform a needle insertion action, and the puncture member 32 can move along a second direction relative to the booster 2 to perform a needle withdrawal action, and the first direction is opposite to the second direction.

[0086] The monitoring assembly 4 is fixed to one end of the booster 2 facing the mounting opening 14, so that the booster 2 can drive the monitoring assembly 4 to move along the first direction. The booster 2 and the puncture member 32 move in opposite directions to achieve needle insertion and needle withdrawal, and both processes are performed along the axial direction of the housing 1, so that the needle insertion and needle withdrawal actions are more space-saving and the movement is more reliable, making the movement guidance of the two components simpler, and ensuring that the puncture member 32 is inserted and withdrawn at an angle perpendicular to the host skin, greatly reducing the pain during the implantation process and improving the user experience.

[0087] Specifically, the first direction is a direction along the axial direction of the housing 1 toward the mounting opening 14 , and the second direction is a direction along the axial direction of the housing 1 away from the mounting opening 14 .

[0088] like Figure 2 , Figure 4 As shown, preferably, a boost spring 8 and a needle withdrawal spring 9 are further provided in the housing 1. The boost spring 8 acts on the boost member 2 and is initially in a compressed state. When the boost member 2 is triggered, the boost spring 8 uses elastic force to push the boost member 2, so that the boost member 2 drives the puncture assembly 3 to move in the first direction to the installation port 14 to perform needle insertion. The needle withdrawal spring 9 acts on the puncture assembly 3 and is initially in a stretched state. When the boost member 2 moves in the first direction to the end of the stroke, the unlocking structure on the housing 1 triggers the puncture assembly 3, so that it moves in the second direction alone under the pulling force of the needle withdrawal spring 9 to withdraw the needle.

[0089] Specifically, Figure 8 As shown, the booster 2 is provided with a guide column 24 , and the booster spring 8 is sleeved on the guide column 24 .

[0090] Preferably, if Figure 2 As shown, the boost spring 8 and the needle withdrawal spring 9 are staggered to avoid interference between the two during the expansion and contraction process. In addition, the boost spring 8 and the needle withdrawal spring 9 at least partially overlap in the first direction to save axial space and achieve product miniaturization.

[0091] Furthermore, if Figure 8 As shown, the booster 2 includes a first pushing portion 21 and a second pushing portion 22. The first pushing portion 21 is fixedly matched with the monitoring component 4, and the second pushing portion 22 is used to accommodate the puncture component 3. The first pushing portion 21 and the second pushing portion 22 are integrally formed.

[0092] The booster 2 includes an integrally formed first pusher portion 21 and a second pusher portion 22. On the one hand, the overall structure of the booster 2 is more integrated and the structure is simplified. On the other hand, it is only necessary to guide the overall movement of the booster 2 without guiding the two parts separately, so that the movement of the two parts is more consistent, avoiding the situation where the movement direction and movement speed of the first pusher portion 21 and the second pusher portion 22 are inconsistent. Of course, the first pusher portion 21 and the second pusher portion 22 can also adopt a split structure, which is subsequently assembled into one, or designed to be a structure that can move independently in the housing 1, which is not limited here.

[0093] like Figure 4 As shown, a first guide channel 15 is provided in the housing 1, and the booster 2 is located in the first guide channel 15 and has a stop rib 27 extending out of the first guide channel 15, which is used to stop and limit the housing 1 so that the booster 2 cannot move. The real-time blood glucose monitoring device also includes a trigger member 6 provided on the housing 1, which is used to trigger the pusher to move. Specifically, when the user operates the trigger member 6, the trigger member 6 squeezes the stop rib 27, causing the stop rib 27 to move into the first guide channel 15, thereby losing the stop with the housing 1. At this time, the booster 2 moves along the first direction under the action of the booster spring 8 to perform needle insertion. Figure 5 , Figure 8 As shown, a second guide channel 23 is provided in the booster 2, the puncture assembly 3 is located in the second guide channel 23, and has a trigger wing 312 extending out of the second guide channel 23, and the housing 1 is provided with an unlocking structure at the end of the stroke of the booster 2. When the booster 2 carries the puncture assembly 3 and moves into place along the first direction, the unlocking structure squeezes the trigger wing 312, so that the trigger wing 312 deforms inwardly and completely enters the second guide channel 23. At this time, the needle withdrawal spring 9 pulls the puncture assembly 3 to move along the second direction to withdraw the needle.

[0094] In a preferred embodiment of this embodiment, Figure 6 As shown, one of the housing 1 and the booster 2 is provided with a guide rib 13 extending along the first direction, and the guide rib 13 contacts the other of the two to guide the booster 2 to move along the first direction; the guide rib 13 and the matching groove 25 are arranged one by one, and the guide rib 13 is symmetrically arranged on both sides of the booster 2.

[0095] The guide ribs 13 are symmetrically arranged on both sides of the booster 2, so that the booster 2 can be guided on both sides at the same time. While improving the guiding effect, the booster 2 can move so that the forces on both sides are more balanced, balancing the forces on both sides of the booster 2, so that the booster 2 maintains a stable posture and avoids the booster 2 from tilting during movement.

[0096] Specifically, this embodiment does not limit the guide structure between the housing 1 and the booster 2. In a specific example, Figure 6 As shown, the other of the housing 1 and the booster 2 is provided with a matching groove 25, and the guide rib 13 is located in the matching groove 25, so that the guide rib 13 moves along the matching groove 25 in the first direction. Figure 6 As shown, the contact surface of the guide rib 13 is an arc surface, and the inner wall surface of the matching groove 25 is also an arc surface, so that the matching groove 25 partially wraps the guide rib 13 to improve the matching stability. In another specific example, the contact surface between the guide rib 13 and the matching groove 25 can also be a plane or other curved surface.

[0097] In addition, the contact end of the guide rib 13 may also be designed as a structure with a gradually decreasing cross-sectional area to reduce the contact area with the booster 2 or the housing 1, thereby reducing the friction resistance during movement and making the booster 2 move more smoothly.

[0098] like Figure 6 As shown, the puncture assembly 3 also includes a needle seat 31, and the puncture member 32 is arranged on the needle seat 31. One of the booster 2 and the needle seat 31 is provided with a guide rib 26, and the other is provided with a guide groove 317. The guide rib 26 includes a contact portion 314 that contacts the guide groove 317, and the cross-sectional area of ​​the contact portion 314 gradually decreases along the direction approaching the guide groove 317.

[0099] The needle seat 31 and the booster 2 are in contact with each other through the contact portion 314, and the cross-sectional area of ​​the contact portion 314 gradually decreases, so that the contact area between the two is reduced, while ensuring the guiding effect, the friction resistance between the two is reduced, thereby reducing the sticking feeling when the puncture component 3 moves relative to the booster 2, improving the smoothness of the movement of the puncture component 3, making the needle withdrawal movement smoother, and reducing the pain felt by the user when using it.

[0100] Preferably, if Figure 6 As shown, the end of the contact portion 314 forms a pointed tip, so that the contact with the booster 2 or the needle seat 31 is a line contact. Of course, the contact surface of the contact surface can also be an arc or a slope structure or other shapes, which are not limited here.

[0101] Furthermore, if Figure 6 As shown, the guide groove 317 is surrounded by a contact wall 319 and a first limiting wall 311 and a second limiting wall 318 respectively extending from both ends of the contact wall 319 in a direction perpendicular to the contact wall 319. The guide rib 26 contacts the contact wall 319, the first limiting wall 311 is provided with a first contact portion 315 extending into the guide groove 317, and the second limiting wall 318 is provided with a second contact portion 316 extending into the guide groove 317. The first contact portion 315 and the second contact portion 316 are respectively in contact with the guide rib 26, and the cross-sectional areas of the first contact portion 315 and the second contact portion 316 gradually decrease in the direction approaching the guide rib 26.

[0102] Specifically, the first contact portion 315 and the second contact portion 316 are located on both sides of the guide rib 26 and contact the wall surfaces on both sides of the guide rib. The guide rib 26 is located in the guide groove 317, and the guide groove 317 extends along the second direction. Therefore, due to the stop of the contact portions on both sides of the guide groove 317, the puncture assembly 3 can only move along the second direction, and the two are in contact through the contact portion 314, so that the friction force on the puncture assembly 3 during the movement is also small, and the puncture assembly 3 moves more smoothly. At the same time, the contact between the guide rib 26 and the contact wall 219 also has a small friction force.

[0103] Specifically, the booster 2 has a second guide channel 23 inside, and part of the side wall of the second guide channel 23 constitutes a guide rib 26. The needle seat 31 is located in the second guide channel 23, the first contact portion 315 is located in the second guide channel 23 and contacts the inner wall surface of the guide rib 26, and the second contact portion 316 is located outside the second guide channel 23 and contacts the outer wall surface of the guide rib 26.

[0104] At the same time, multiple guide grooves 317 can also be set and arranged relatively on both sides of the needle seat 31, and the booster 2 is provided with matching structures one by one to improve the stability of guiding the puncture component 3 and the smoothness of the movement of the puncture component 3.

[0105] Preferably, if Figure 1 , Figure 2 , Figure 4 , Figure 5 As shown, the real-time blood glucose monitoring device also includes a trigger member 6 arranged on the shell 1, and the trigger member 6 is used to trigger the movement of the puncture member 32. The bottom cover 7 has a limiting portion. When the bottom cover 7 is installed on the shell 1, the limiting portion cooperates with the trigger member 6 stopper to limit the movement of the trigger member 6.

[0106] The bottom cover 7 can also limit the trigger member 6 to prevent mis-triggering. When the bottom cover 7 is installed with the housing 1, the trigger member 6 cannot be triggered by the user, and the product cannot be implanted, thereby preventing the product from being mis-triggered before use and causing it to be scrapped. Only when the user removes the bottom cover 7, the trigger member 6 loses its stop and can be triggered, thereby driving the booster 2 to move and perform the implantation action.

[0107] It should be noted that the present application does not limit the structure and triggering method of the trigger member 6, which includes but is not limited to one of the following embodiments:

[0108] Implementation method 1: In this implementation method, Figure 2As shown, the trigger member 6 is a trigger ring sleeved on the outer periphery of a part of the outer shell 1, and the outer shell 1 is provided with a slide groove extending in the first direction, and the trigger ring cooperates with the slide groove. When in use, the mounting opening 14 of the outer shell 1 is pressed against the skin surface, and the trigger ring is held and pressed in the first direction to move the trigger ring in the first direction to trigger the booster 2. When the bottom cover 7 is installed, a stop limit is formed on the end of the trigger ring, so that it cannot move in the first direction, thereby preventing the user from triggering it.

[0109] Embodiment 2: In this embodiment, the pressing member is a trigger button disposed on the side or end of the housing 1, and the user can trigger the trigger by pressing the trigger button inward. In this embodiment, a stop structure can be disposed on the bottom cover 7, and the stop structure is located on the movement path of the trigger button, forming a movement limit for the trigger button, so that it cannot be fully pressed, and thus cannot trigger the booster 2. When the bottom cover 7 is removed, the limit on the trigger button is lost, so that it can normally trigger the booster 2.

[0110] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0111] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0112] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A real-time blood glucose monitoring device, characterized in that: include: A housing, wherein the housing has a receiving space and a mounting opening communicating with the receiving space and the outside; A monitoring component, the monitoring component is arranged in the accommodating space, and the monitoring component includes an electronic unit and a detection unit; A puncture assembly, the puncture assembly is arranged in the accommodation space, the puncture assembly includes a puncture member, and the puncture member partially passes through the monitoring assembly to accommodate the detection unit part inside the puncture member; as well as A bottom cover, wherein the bottom cover is detachably connected to the shell to close the installation port, the bottom cover has a mating wall protruding into the accommodating space, the mating wall is provided with a first sealing member that is in sealing contact with the bottom surface of the monitoring component to form a sealed cavity, a portion of the detection unit and a portion of the puncture member are arranged in the sealed cavity, and an area enclosed by the first sealing member is smaller than an area of ​​a cross section of the sealed cavity.

2. The real-time blood glucose monitoring device according to claim 1, characterized in that: The sealed cavity comprises a sealed channel and a closed chamber, the end of the piercing member extends from the sealed channel into the closed chamber, and the cross-sectional area of ​​the closed chamber is larger than the area enclosed by the first sealing member.

3. The real-time blood glucose monitoring device according to claim 1, characterized in that: The puncture assembly also includes a needle seat, the puncture member is arranged on the needle seat, the monitoring assembly includes an upper shell and a lower shell, and a second seal is arranged between the upper shell and the needle seat; the needle seat, the monitoring assembly, the matching wall and the first seal, the second seal together form the sealed cavity.

4. The real-time blood glucose monitoring device according to claim 1, characterized in that: The real-time blood glucose monitoring device also includes a magnetic member arranged on the bottom cover, and the magnetic member is used to switch the power consumption mode of the electronic unit. The bottom cover is also provided with a mounting portion protruding toward the monitoring component, and the magnetic member is arranged on the mounting portion.

5. The real-time blood glucose monitoring device according to claim 4, characterized in that: The matching wall surrounds the outer peripheral side of the mounting portion, and the sealing cavity is formed between the mounting portion and the matching wall.

6. The real-time blood glucose monitoring device according to claim 4, characterized in that: The mounting portion has a mounting cavity formed concavely toward the monitoring component, the magnetic component is arranged in the mounting cavity, and a stopper is also arranged in the mounting cavity, and the stopper is used to limit the magnetic component from escaping from the mounting cavity.

7. The real-time blood glucose monitoring device according to claim 1, characterized in that: The real-time blood glucose monitoring device also includes a booster member arranged in the shell, and the booster member can drive the puncture assembly to move along a first direction to perform a needle insertion action. The booster member includes a first pushing part and a second pushing part. The first pushing part is fixed with the monitoring assembly, and the second pushing part is used to accommodate the puncture assembly. The first pushing part and the second pushing part are integrally formed.

8. The real-time blood glucose monitoring device according to claim 7, characterized in that: One of the shell and the booster is provided with a guide rib extending along the first direction, and the other is provided with a matching groove extending along the first direction. The guide ribs and the matching grooves are arranged in a one-to-one correspondence, and the guide ribs are symmetrically arranged on both sides of the booster.

9. The real-time blood glucose monitoring device according to claim 1, characterized in that: The real-time blood glucose monitoring device also includes a booster member arranged in the shell, and the booster member can drive the puncture assembly to move along a first direction to perform a needle insertion action. The puncture assembly also includes a needle seat, and the puncture member is arranged on the needle seat. One of the booster member and the needle seat is provided with a guide rib, and the other is provided with a guide groove. The guide rib includes a contact portion that contacts the guide groove, and the cross-sectional area of ​​the contact portion gradually decreases along the direction approaching the guide groove.

10. The real-time blood glucose monitoring device according to claim 9, characterized in that: The guide groove is surrounded by a contact wall and a first limiting wall and a second limiting wall respectively extending from both ends of the contact wall in a direction perpendicular to the contact wall. The guide rib contacts the contact wall. The first limiting wall is provided with a first contact portion extending into the guide groove. The second limiting wall is provided with a second contact portion extending into the guide groove. The first contact portion and the second contact portion are respectively in contact with the guide rib, and the cross-sectional areas of the first contact portion and the second contact portion gradually decrease in a direction approaching the guide rib.

11. The real-time blood glucose monitoring device according to claim 10, characterized in that: The guide grooves are relatively located on two sides of the booster or the needle seat.

12. The real-time blood glucose monitoring device according to claim 1, characterized in that: The real-time blood glucose monitoring device also includes a trigger member arranged on the shell, the trigger member is used to trigger the movement of the puncture member, the bottom cover has a limiting portion, and when the bottom cover is installed on the shell, the limiting portion cooperates with the trigger member stopper to limit the movement of the trigger member.

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