Continuous blood glucose monitoring device

Abstract

The continuous blood glucose monitoring device comprises a shell, an in-vivo monitoring unit and a needle assisting unit, and a first containing cavity with a downward cavity opening and a second containing cavity located below the first containing cavity are formed in the shell; the in-vivo monitoring unit comprises a sensor assembly arranged in the first containing cavity and an emitter assembly arranged in the second containing cavity, the sensor assembly is provided with a locking groove, the needle assisting unit comprises a driving assembly and a puncture assembly which are arranged in the first containing cavity, and the driving assembly is used for driving the puncture assembly to move; the driving assembly comprises a locking piece capable of stretching into the locking groove, the puncturing assembly comprises a fixing part used for extruding the locking piece, in the first relative position, the fixing part abuts against the locking piece so that the locking piece can be limited in the locking groove, and then the sensor assembly is locked to the driving assembly, and in the second relative position, the fixing part abuts against the locking piece so that the sensor assembly can be fixed to the driving assembly. And the fixing part is separated from the locking piece to release the limiting of the locking piece, so that the sensor assembly is released from the driving assembly.

Description

Technical Field

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

[0002] Continuous blood glucose monitoring devices require sensors to penetrate the subcutaneous tissue, and the biological enzymes on the sensor produce an electrochemical reaction with the subcutaneous tissue, which is converted into electrical signals and provided to the user through conversion into blood glucose values. Since the product has a part that penetrates the subcutaneous tissue, it needs to be sterilized before leaving the factory to avoid the risk of infection to the user caused by pathogenic bacteria on the product.

[0003] The existing continuous blood glucose monitoring device includes a needle assist device and an online monitoring unit arranged inside the needle assist device. The circumferential contact between the online monitoring unit and the needle assist device shell realizes the connection between the online monitoring unit and the needle assist device. This results in poor connection stability between the online monitoring unit and the needle assist device, which in turn affects the user experience. Utility Model Content

[0004] The present application provides a continuous blood glucose monitoring device to increase the connection stability between the online blood glucose monitoring device and the needle assisting device, while ensuring the smooth separation of the online monitoring unit and the needle assisting device when the needle assisting device is withdrawn, so as to improve the user experience.

[0005] The technical solution adopted in this application is:

[0006] A continuous blood glucose monitoring device, comprising:

[0007] A shell having a first accommodating cavity with a cavity opening facing downward and a second accommodating cavity located below the first accommodating cavity;

[0008] An on-body monitoring unit, comprising a sensor assembly disposed in the first accommodating cavity and a transmitter assembly disposed in the second accommodating cavity, wherein the sensor assembly has a locking groove;

[0009] The needle-assisting unit comprises a driving assembly and a puncture assembly disposed in the first accommodating chamber, wherein the driving assembly is used to drive the puncture assembly to move so as to drive the sensor assembly to be installed on the transmitter assembly, the driving assembly comprises a locking member capable of extending into the locking groove, and the puncture assembly comprises a fixing portion for pressing the locking member;

[0010] The puncture assembly and the sensor assembly have a first adjacent relative position and a separated second relative position. In the first relative position, the fixing portion presses against the locking member to limit the locking member in the locking groove, thereby locking the sensor assembly to the drive assembly. In the second relative position, the fixing portion disengages from the locking member to release the locking member from the limit, so that the sensor assembly is released from the drive assembly.

[0011] By adopting the above-mentioned technical scheme, when the continuous blood glucose monitoring device in the present application is not installed on the human body, the puncture assembly and the sensor assembly are in a first relative position, so that the fixing part is pressed against the locking piece and the locking piece is limited in the locking groove, so as to lock the sensor assembly to the driving assembly, so as to increase the connection stability between the online monitoring unit and the auxiliary needle unit. After the continuous blood glucose monitoring device is installed on the human body, the puncture assembly and the sensor assembly are in a second relative position, so that the fixing part is disengaged from the locking piece to release the limitation of the locking piece, thereby releasing the sensor assembly from the driving assembly, thereby ensuring the smoothness of the separation of the sensor assembly and the driving assembly when the needle is withdrawn, thereby improving the user experience.

[0012] At the same time, the sensor component is arranged in the first accommodating chamber, and the transmitter component is arranged in the second accommodating chamber, which can facilitate the separate sterilization of the transmitter component and the sensor component, thereby reducing the difficulty of sterilizing the online monitoring unit and reducing the production cost of the continuous blood glucose monitoring device.

[0013] Optionally, the locking member has at least two locking portions, and the fixing portion can extend between the locking portions to limit the locking portion to the locking groove.

[0014] By adopting the above technical solution, since the locking member has at least two locking parts, the connection points between the locking member and the sensor assembly are increased to increase the connection stability between the sensor assembly and the drive assembly, and the fixing part can extend between the locking parts so that a single fixing part can squeeze multiple locking parts to simplify the structure of the fixing part, while achieving the effect of facilitating the assembly of the sensor assembly to the drive assembly, thereby improving the production efficiency of the continuous blood glucose monitoring device.

[0015] Optionally, the locking member is an elastic member, and in the first relative position, the locking member is in a deformed state.

[0016] By adopting the above technical solution, since the locking part is an elastic part, the ability of the elastic part to restore its deformation is increased after the fixing part is separated from the elastic part, thereby ensuring the smooth separation of the sensor assembly and the driving assembly when the needle is withdrawn, thereby further improving the user experience.

[0017] Optionally, the locking member includes a connecting section and a locking section arranged on the side of the connecting section, the locking groove includes a connecting groove for accommodating the connecting section and a matching groove arranged on the groove wall of the connecting groove and for accommodating the locking section, in the first relative position, the locking section is located in the matching groove; in the second relative position, the locking section is disengaged from the matching groove.

[0018] By adopting the above technical solution, since the locking section is located in the mating groove in the first relative position, and the mating groove is arranged on the groove wall of the connecting groove, the connection stability between the locking piece and the locking groove can be increased, so as to increase the fixing effect of the sensor assembly, so as to reduce the separation of the sensor assembly and the driving assembly caused by the vibration of the continuous blood glucose monitoring device during transportation or handling, thereby improving the quality stability of the continuous blood glucose monitoring device and further improving the user experience.

[0019] Optionally, the locking groove has a contact surface that is tightly matched with the locking member, and the contact surface is inclined from the center to the surrounding areas from top to bottom.

[0020] By adopting the above technical solution, since the contact surface is inclined from the center to the surrounding areas from top to bottom, the notch area of ​​the locking groove is smaller than the bottom area of ​​the locking groove, so that when the fixing part is located in the locking groove, the sensor assembly cannot be separated from the driving assembly, thereby increasing the fixing effect of the sensor assembly and reducing the difficulty of molding the locking groove and the locking member, thereby reducing the production cost of the continuous blood glucose monitoring device and improving the production cost of the continuous blood glucose monitoring device.

[0021] Optionally, the top surface of the sensor assembly has a central area and an edge area surrounding the central area, and the locking groove is arranged in the central area.

[0022] By adopting the above technical solution, since the locking groove is arranged in the central area of ​​the sensor assembly, the locking member and the fixing part can form an avoidance with the transmitter assembly, so as to increase the smoothness when the sensor assembly and the transmitter assembly are assembled together, and at the same time, the number of locking members and fixing parts can be reduced to simplify the structure of the continuous blood glucose monitoring device, thereby reducing the production cost of the continuous blood glucose monitoring device; at the same time, the force of the sensor assembly can be balanced to increase the stability of the sensor assembly, thereby further increasing the smoothness when the sensor assembly and the transmitter assembly are assembled together.

[0023] Optionally, a positioning portion is provided at the bottom of the driving assembly, and a matching portion is provided at the top of the sensor assembly, and the positioning portion can cooperate with the matching portion to position the sensor assembly.

[0024] By adopting the above technical solution, after the sensor assembly and the driving assembly are assembled together, the positioning portion and the matching portion cooperate to position the sensor assembly, so as to increase the stability of the sensor assembly and avoid the possible misalignment of the sensor assembly and the transmitter assembly, thereby ensuring the smoothness of the assembly of the sensor assembly and the transmitter assembly, reducing the user's operating difficulty and improving the user's experience.

[0025] Optionally, the transmitter assembly has a first snap-fit ​​structure, and the sensor assembly has a second snap-fit ​​structure, and the first snap-fit ​​structure can cooperate with the second snap-fit ​​structure to connect the sensor assembly to the transmitter assembly.

[0026] By adopting the above technical solution, after the sensor assembly and the transmitter assembly are assembled together, the first snap-fit ​​structure cooperates with the second snap-fit ​​structure to increase the connection stability between the sensor assembly and the transmitter assembly, thereby avoiding the situation where the sensor assembly and the transmitter assembly can move relative to each other and cause discomfort to the user. At the same time, the product quality of the continuous blood glucose monitoring device can be increased, thereby improving the user's experience.

[0027] Optionally, a sealing member for sealing the first accommodating cavity is provided at the cavity opening of the first accommodating cavity, and a through opening located between the first accommodating cavity and the second accommodating cavity is provided on the peripheral side of the shell. The sealing member can be removed from the cavity opening of the first accommodating cavity and taken out through the through opening, so that the first accommodating cavity and the second accommodating cavity are connected to each other, so that the sensor assembly can be assembled on the transmitter assembly.

[0028] By adopting the above technical solution, since the sealing member seals the first accommodating cavity, and the sensor assembly is arranged in the first accommodating cavity, the risk of the sensor assembly being contaminated by pathogenic bacteria is reduced, thereby reducing the risk of infection to the user. In addition, the sealing member can be removed from the cavity opening of the first accommodating cavity and taken out through the through port, thereby achieving the effect of facilitating the user to remove the sealing member, thereby reducing the user's operating difficulty, and further improving the user's experience.

[0029] Optionally, the driving assembly includes an assisting needle driving member and a needle withdrawing driving member, the assisting needle driving member is used to drive the puncture assembly to move from an initial position to a assisting needle position to drive the sensor assembly to be installed on the transmitter assembly, and the needle withdrawing driving member is used to drive the puncture assembly to move from the assisting needle position to the needle withdrawing position to separate the puncture assembly from the sensor assembly.

[0030] By adopting the above technical solution, when the continuous blood glucose monitoring device is installed on the human body, the needle-assisting driving component drives the puncture assembly to move the puncture assembly from the initial position to the needle-assisting position, so as to drive the sensor assembly to be installed on the transmitter assembly, and at the same time, the sensor of the sensor assembly penetrates the subcutaneous assembly, and then the needle-retracting driving component drives the puncture assembly to move the puncture assembly from the needle-assisting position to the needle-retracting position. At this time, the fixing part is separated from the locking component to release the limit on the locking component, and the locking component can be separated from the locking groove to complete the installation of the sensor assembly and the transmitter assembly on the human body. The operation is simple in this process, thereby reducing the user's operating difficulty and improving the user's experience.

[0031] Optionally, the continuous blood glucose monitoring device also includes a trigger button for triggering the drive assembly and a protective member detachably connected to the shell and acting on the trigger button, after the protective member is removed, the trigger button can trigger the drive assembly.

[0032] By adopting the above technical solution, before the continuous blood glucose monitoring device is installed on the human body, the protective part is first removed from the shell, and then pressure is applied to the trigger button to cause the trigger button to trigger the drive component, so that the drive component drives the puncture component, so that the sensor component and the transmitter component are assembled together and the sensor of the sensor component is inserted into the subcutaneous tissue; at the same time, the protective frame can prevent the trigger button from being triggered by mistake, so as to improve the product quality of the continuous blood glucose monitoring device and reduce the requirements of the continuous blood glucose monitoring device for transportation or handling.

[0033] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0034] The continuous blood glucose monitoring device in the present application includes a shell, an on-body monitoring unit and a needle-assisting unit. The shell has a first accommodating chamber with a cavity opening facing downward and a second accommodating chamber located below the first accommodating chamber. The on-body monitoring unit includes a sensor assembly arranged in the first accommodating chamber and a transmitter assembly arranged in the second accommodating chamber. The sensor assembly has a locking groove. The needle-assisting unit includes a driving assembly and a puncture assembly arranged in the first accommodating chamber. The driving assembly is used to drive the puncture assembly to move so as to drive the sensor assembly to be installed on the transmitter assembly. The driving assembly includes a locking piece that can extend into the locking groove. The puncture assembly includes a fixing portion for squeezing the locking piece. The puncture assembly and the sensor assembly have an adjacent first relative position and a separated second relative position. In the first relative position, the fixing portion presses against the locking piece to limit the locking piece to the locking groove. , and then lock the sensor assembly to the drive assembly. In the second relative position, the fixing portion is disengaged from the locking piece to release the limit on the locking piece, so that the sensor assembly is released from the drive assembly. That is to say, when the continuous blood glucose monitoring device in the present application is not installed on the human body, the puncture assembly and the sensor assembly are in the first relative position, so that the fixing portion is pressed against the locking piece and the locking piece is limited in the locking groove, so as to achieve locking the sensor assembly to the drive assembly, thereby increasing the connection stability between the online monitoring unit and the auxiliary needle unit. After the continuous blood glucose monitoring device is installed on the human body, the puncture assembly and the sensor assembly are in the second relative position, so that the fixing portion is disengaged from the locking piece to release the limit on the locking piece, thereby releasing the sensor assembly from the drive assembly, thereby ensuring the smoothness of the separation of the sensor assembly from the drive assembly when the needle is withdrawn. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] 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:

[0036] Figure 1 This is a schematic diagram of the structure of a continuous blood glucose monitoring device according to one embodiment of the present application;

[0037] Figure 2 A cross-sectional view of a continuous blood glucose monitoring device according to one embodiment of the present application;

[0038] Figure 3 for Figure 2 A magnified view of the middle A area;

[0039] Figure 4 This is a schematic structural diagram of the core barrel in one embodiment of the present application;

[0040] Figure 5 This is a schematic diagram of the structure of the sensor assembly according to one embodiment of the present application;

[0041] Figure 6 This is a schematic structural diagram of another perspective of the continuous blood glucose monitoring device according to one embodiment of the present application;

[0042] Figure 7 for Figure 6 Enlarged view of the B area;

[0043] Figure 8 This is a partial structural schematic diagram of a continuous blood glucose monitoring device according to one embodiment of the present application;

[0044] Fig. 9 This is a partial structural schematic diagram of the continuous blood glucose monitoring device in one embodiment of the present application, mainly showing the sealing component.

[0045] Reference numerals:

[0046] 1. Shell; 11. Upper shell; 111. First accommodating cavity; 112. Sealing member; 113. Main body; 114. Operating portion; 115. Through port; 116. Edge; 117. Flanging; 12. Base; 121. Second accommodating cavity; 122. Mounting seat; 123. Limiting portion; 13. Lower shell;

[0047] 2. sensor assembly; 21. locking groove; 211. connecting groove; 212. matching groove; 22. matching portion; 23. second engaging structure;

[0048] 3. Transmitter assembly; 31. First engaging structure;

[0049] 4. Driving assembly; 41. Needle assisting driving member; 42. Needle withdrawing driving member; 43. Core barrel; 431. Locking member; 432. Connecting section; 433. Locking section; 434. Positioning portion;

[0050] 5. puncture assembly; 51. needle seat; 511. fixing part; 52. half-wall needle;

[0051] 6. Trigger button;

[0052] 7. Protective parts. DETAILED DESCRIPTION

[0053] 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.

[0054] 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 protection scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features in each embodiment may be combined with each other without conflict.

[0055] In addition, in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc. 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 should not be understood as a limitation on the present application.

[0056] 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 this application can be understood according to specific circumstances.

[0057] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a 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 "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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.

[0058] Reference Figures 1 to 9A continuous blood glucose monitoring device comprises a housing 1, an on-body monitoring unit and a needle-assisting unit, wherein the housing 1 has a first accommodating chamber 111 with a downward opening and a second accommodating chamber 121 located below the first accommodating chamber 111; the on-body monitoring unit comprises a sensor assembly 2 disposed in the first accommodating chamber 111 and a transmitter assembly 3 disposed in the second accommodating chamber 121, wherein the sensor assembly 2 has a locking groove 21; the needle-assisting unit comprises a driving assembly 4 and a puncture assembly 5 disposed in the first accommodating chamber 111, wherein the driving assembly 4 is used to drive the puncture assembly 5 to move, so as to drive the sensor assembly 2 to be installed in the transmitter The sensor assembly 3 and the driving assembly 4 include a locking member 431 that can extend into the locking groove 21, and the puncture assembly 5 includes a fixing portion 511 for squeezing the locking member 431; the puncture assembly 5 and the sensor assembly 2 have a first adjacent relative position and a separated second relative position. In the first relative position, the fixing portion 511 presses against the locking member 431 to limit the locking member 431 in the locking groove 21, thereby locking the sensor assembly 2 to the driving assembly 4. In the second relative position, the fixing portion 511 is disengaged from the locking member 431 to release the locking member 431 from the limit, so that the sensor assembly 2 is released from the driving assembly 4.

[0059] It should be noted that the first relative position mentioned in the present application refers to the position of the puncture assembly 5 and the sensor assembly 2 when the fixing portion 511 is in contact and squeezed with the locking piece 431 and the fixing portion 511 extends into the locking groove 21, and the second relative position refers to the position of the puncture assembly 5 and the sensor assembly 2 when the fixing portion 511 is separated from the locking piece 431 and detached from the locking groove 21.

[0060] When the continuous blood glucose monitoring device in the present application is not installed on the human body, the puncture assembly 5 and the sensor assembly 2 are in a first relative position, so that the fixing portion 511 is pressed against the locking member 431 and the locking member 431 is limited in the locking groove 21, so as to lock the sensor assembly 2 to the driving assembly 4, thereby increasing the connection stability between the online monitoring unit and the auxiliary needle unit. After the continuous blood glucose monitoring device is installed on the human body, the puncture assembly 5 and the sensor assembly 2 are in a second relative position, so that the fixing portion 511 is disengaged from the locking member 431, so as to release the limitation of the locking member 431, thereby releasing the sensor assembly 2 from the driving assembly 4, thereby ensuring the smoothness of the separation of the sensor assembly 2 from the driving assembly 4 when the needle is withdrawn.

[0061] The present application does not specifically limit the structure of the fixing portion 511. Preferably, refer to Figure 3 , Figure 4 and Figure 7The fixing portion 511 is a columnar structure with a polygonal cross-sectional shape to increase the contact area between the fixing portion 511 and the locking member 431, thereby increasing the squeezing effect of the fixing portion 511 on the locking member 431. In other embodiments, the fixing portion 511 may also be a columnar structure with a circular cross-sectional shape or other shapes.

[0062] The present application does not specifically limit the relative position of the locking groove 21 and the sensor assembly 2, and any one of the following embodiments may be adopted:

[0063] Embodiment 1. In this embodiment, referring to Figure 5 The top surface of the sensor assembly 2 has a central area and an edge area surrounding the central area, and the locking groove 21 is arranged in the central area.

[0064] Since the locking groove 21 is arranged in the central area of ​​the sensor assembly 2, the locking member 431 and the fixing portion 511 can avoid the transmitter assembly 3, so as to increase the smoothness when the sensor assembly 2 and the transmitter assembly 3 are assembled together, and at the same time, the number of the locking member 431 and the fixing portion 511 can be reduced to simplify the structure of the continuous blood glucose monitoring device, thereby reducing the production cost of the continuous blood glucose monitoring device. At the same time, the locking groove 21 is arranged in the central area of ​​the sensor assembly 2 to balance the force of the sensor assembly 2, so as to increase the stability of the sensor assembly 2, and further increase the smoothness when the sensor assembly 2 and the transmitter assembly 3 are assembled together.

[0065] In this embodiment, the structure of the locking member 431 is not specifically limited. Preferably, the locking member 431 has at least two locking portions, and the fixing portion 511 can extend between the locking portions to limit the locking portion in the locking groove 21.

[0066] Since there are at least two locking parts, the connection points between the locking member 431 and the sensor assembly 2 are increased to increase the connection stability between the sensor assembly 2 and the drive assembly 4, and the fixing part 511 can extend between the locking parts so that a single fixing part 511 can squeeze multiple locking parts to simplify the structure of the fixing part 511, while achieving the effect of facilitating the assembly of the sensor assembly 2 to the drive assembly 4, thereby improving the production efficiency of the continuous blood glucose monitoring device.

[0067] The present application does not specifically limit the number of locking parts. Preferably, refer to Figure 3 and Figure 4, two locking parts are provided and are located on opposite sides of the fixing part 511, so as to increase the squeezing effect of the fixing part 511 on the locking part, thereby ensuring the connection stability between the sensor assembly 2 and the driving assembly 4, and reducing the risk of separation of the sensor assembly 2 and the driving assembly 4 during transportation or handling, thereby improving the product quality of the continuous blood glucose monitoring device. In other implementation examples, three, four, or other numbers of locking parts can also be provided along the circumference of the fixing part 511.

[0068] Embodiment 2. In this embodiment, the top surface of the sensor component 2 has a central area and an edge area surrounding the central area. The locking groove 21 is arranged in the edge area, and a plurality of locking grooves 21 are arranged along the circumference of the sensor component 2. A plurality of fixing portions 511 and locking members 431 are arranged corresponding to the locking grooves 21. Each fixing portion 511 is located on the side of the corresponding locking member 431 away from the sensor component 2. At the same time, an avoidance groove is arranged on the transmitter component 3 corresponding to the fixing portion 511 and the locking member 431, so that when the sensor component 2 and the transmitter component 3 are assembled together, the avoidance groove forms an avoidance for the fixing portion 511 and the locking member 431 to ensure the smoothness of the assembly of the sensor component 2 and the transmitter component 3.

[0069] In a preferred embodiment, the locking member 431 is an elastic member, and in the first relative position, the locking member 431 is in a deformed state.

[0070] That is to say, the locking member 431 is made of elastic material, for example, elastic plastic or elastic metal material.

[0071] Since the locking member 431 is an elastic member, the elastic swing effect of the locking member 431 is increased, and the ability of the elastic member to restore deformation after the fixing portion 511 is separated from the elastic member is increased, thereby improving the smoothness of the separation of the sensor component 2 and the driving component 4 when the needle is withdrawn.

[0072] The present application does not specifically limit the limiting cooperation mode between the locking member 431 and the locking groove 21, and it can adopt any one of the following embodiments:

[0073] Embodiment 1. In this embodiment, referring to Figure 3 and Figure 4 The locking member 431 includes a connecting section 432 and a locking section 433 arranged on the side of the connecting section 432. The locking groove 21 includes a connecting groove 211 for accommodating the connecting section 432 and a matching groove 212 arranged on the groove wall of the connecting groove 211 and for accommodating the locking section 433. In the first relative position, the locking section 433 is located in the matching groove 212; in the second relative position, the locking section 433 is disengaged from the matching groove 212.

[0074] That is to say, in the first relative position, the locking member 431 is snap-fitted with the locking groove 21 to limit the locking member 431 in the locking groove 21, thereby increasing the connection stability between the locking member 431 and the locking groove 21, thereby increasing the fixing effect of the sensor assembly 2, and reducing the situation in which the sensor assembly 2 and the driving assembly 4 are separated due to vibration of the continuous blood glucose monitoring device during transportation or handling, thereby improving the quality stability of the continuous blood glucose monitoring device and further improving the user experience.

[0075] Embodiment 2: In this embodiment, the locking groove 21 has a contact surface that is tightly matched with the locking member 431, and the contact surface is inclined from the center to the surroundings from top to bottom.

[0076] That is to say, the locking piece 431 is tightly fitted with the groove wall of the locking groove 21. Since the contact surface is inclined from the center to the surrounding areas from top to bottom, the groove area of ​​the locking groove 21 is smaller than the bottom area of ​​the locking groove 21. When the fixing portion 511 is located in the locking groove 21, the sensor assembly 2 cannot be separated from the driving assembly 4, thereby increasing the fixing effect of the sensor assembly 2 and reducing the difficulty of molding the locking groove 21 and the locking piece 431, thereby reducing the production cost of the continuous blood glucose monitoring device and improving the production cost of the continuous blood glucose monitoring device.

[0077] Specifically, when the fixing portion 511 extends into the locking groove 21, the fixing portion 511 squeezes the locking piece 431 so that the locking piece 431 elastically deforms in a direction away from the fixing portion 511, thereby making the locking piece 431 press against the contact surface; and when the fixing portion 511 is disengaged from the locking groove 21, the locking piece 431 gradually recovers its deformation so that the end face of the locking piece 431 opposite to the contact surface is in a vertical state or is inclined from top to bottom in a direction away from the contact surface, so as to ensure that after the fixing portion 511 is disengaged from the locking groove 21, the locking piece 431 can be separated from the sensor assembly 2.

[0078] It should be noted that the contact surface is tilted from top to bottom from the center to the surroundings, which means that the contact surface is tilted from top to bottom in a direction away from the locking member 431 .

[0079] In a preferred embodiment, referring to Figure 4 , Figure 5 and Figure 7 A positioning portion 434 is provided at the bottom of the driving component 4, and a matching portion 22 is provided at the top of the sensor component 2. The positioning portion 434 can cooperate with the matching portion 22 to position the sensor component 2.

[0080] After the sensor assembly 2 and the driving assembly 4 are assembled together, the positioning portion 434 cooperates with the matching portion 22 to position the sensor assembly 2, so as to increase the stability of the sensor assembly 2 and avoid the possible misalignment of the sensor assembly 2 and the transmitter assembly 3, thereby ensuring the smoothness of the assembly of the sensor assembly 2 and the transmitter assembly 3, so as to reduce the user's operating difficulty and thereby improve the user's experience.

[0081] The present application does not specifically limit the structure of the positioning portion 434 and the matching portion 22. Preferably, refer to Figure 4 , Figure 5 and Figure 7 , the positioning portion 434 is a block structure provided at the bottom of the driving component 4, and the matching portion 22 is a groove structure provided at the top surface of the sensor component 2, so that the block structure and the groove structure are plugged and matched to realize the positioning of the sensor component 2. In other embodiments, the positioning portion 434 can also be a groove structure provided at the bottom of the driving component 4, and the matching portion 22 is a block structure provided at the top surface of the sensor component 2; or, the positioning portion 434 is an annular rib provided at the bottom of the driving component 4 and extending along the circumference of the sensor component 2, and the matching portion 22 is an annular notch provided at the top surface of the sensor component 2 to accommodate the annular rib.

[0082] The present application does not specifically limit the connection method between the sensor component 2 and the transmitter component 3, and any one of the following embodiments may be adopted:

[0083] Embodiment 1. In this embodiment, referring to Figure 3 , Figure 5 and Figure 7 The transmitter component 3 has a first snap-fit ​​structure 31 , and the sensor component 2 has a second snap-fit ​​structure 23 . The first snap-fit ​​structure 31 can cooperate with the second snap-fit ​​structure 23 to connect the sensor component 2 with the transmitter component 3 .

[0084] After the sensor component 2 and the transmitter component 3 are assembled together, the first snap-fit ​​structure 31 cooperates with the second snap-fit ​​structure 23 to increase the connection stability between the sensor component 2 and the transmitter component 3, thereby avoiding the situation where the sensor component 2 and the transmitter component 3 can move relative to each other and cause discomfort to the user, and at the same time can increase the product quality of the continuous blood glucose monitoring device, thereby improving the user experience.

[0085] The present application does not make any specific limitation on the structures of the first snap-fit ​​structure 31 and the second snap-fit ​​structure 23. Preferably, the first snap-fit ​​structure 31 is a protrusion arranged on the inner side of the transmitter component 3, and the second snap-fit ​​structure 23 is a slot arranged on the peripheral side of the sensor component 2. The protrusion and the slot are snap-fitted to realize the connection between the sensor component 2 and the transmitter component 3, so as to further increase the connection stability between the sensor component 2 and the transmitter component 3.

[0086] Preferably, the protrusion is elastic so that the protrusion can swing relative to the transmitter assembly 3 to ensure smooth assembly of the sensor assembly 2 and the transmitter assembly 3 .

[0087] In other embodiments, the first engaging structure 31 may also be a slot disposed on the inner side of the transmitter assembly 3 , and the second engaging structure 23 may be a protrusion disposed on the peripheral side of the sensor assembly 2 .

[0088] The present application does not specifically limit the number of the first snap-fit ​​structure 31 and the second snap-fit ​​structure 23. Preferably, a plurality of first snap-fit ​​structures 31 are arranged at intervals along the circumference of the inner wall of the transmitter assembly 3, and a plurality of second snap-fit ​​structures 23 are arranged corresponding to the first snap-fit ​​structures 31, so as to increase the fixing points of the sensor assembly 2, thereby increasing the connection stability between the sensor assembly 2 and the transmitter assembly 3. In other embodiments, the first snap-fit ​​structure 31 and the second snap-fit ​​structure 23 may each be arranged with one.

[0089] Embodiment 2: In this embodiment, after the sensor component 2 and the transmitter component 3 are assembled together, the peripheral surface of the sensor component 2 is pressed against the inner wall of the transmitter component 3, that is, the sensor component 2 and the transmitter component 3 are connected together by interference fit.

[0090] In a preferred embodiment, referring to Figure 2 and Figure 6 The drive assembly 4 includes a needle-assisting drive component 41 and a needle-retracting drive component 42. The needle-assisting drive component 41 is used to drive the puncture assembly 5 to move from the initial position to the needle-assisting position to drive the sensor assembly 2 to be installed on the transmitter assembly 3. The needle-retracting drive component 42 is used to drive the puncture assembly 5 to move from the needle-assisting position to the needle-retracting position to separate the puncture assembly 5 from the sensor assembly 2.

[0091] When the continuous blood glucose monitoring device is installed on the human body, the needle-assisting driving component 41 drives the puncture component 5 to move the puncture component 5 from the initial position to the needle-assisting position, so as to drive the sensor component 2 to be installed on the transmitter component 3, and at the same time, the sensor of the sensor component 2 is partially inserted into the subcutaneous component, and at the same time, the driving component 4 releases the limit on the puncture component 5, and then the needle-retracting driving component 42 drives the puncture component 5, and the fixing part 511 is separated from the locking component 431 to release the limit on the locking component 431, and the locking component 431 can be separated from the locking groove 21, so that the puncture component 5 moves from the needle-assisting position to the needle-retracting position, so as to complete the installation of the sensor component 2 and the transmitter component 3 on the human body, and at the same time, the half-wall needle 52 is retracted. In this process, the user only needs to trigger the driving component 4, so that the continuous blood glucose monitoring device in this application is easy to operate, thereby reducing the user's operating difficulty, so as to improve the user's experience.

[0092] In a preferred embodiment, referring to Figure 2 and Figure 6 The drive assembly 4 also includes a core barrel 43, the puncture assembly 5 is connected to the core barrel 43, and the locking member 431 and the positioning portion 434 are arranged at the bottom of the core barrel 43. The auxiliary needle drive member 41 acts on the core barrel 43 so that the core barrel 43 drives the puncture assembly 5 to move from the initial position to the auxiliary needle position, thereby allowing the sensor assembly 2 to be assembled on the transmitter assembly 3.

[0093] In a preferred embodiment, referring to Figure 2 and Figure 6 The puncture assembly 5 includes a needle seat 51 arranged inside the core barrel 43 and a half-wall needle 52 arranged on the needle seat 51 and capable of extending out of the core barrel 43. The fixing portion 511 is arranged at the bottom of the needle seat 51. The needle withdrawal drive member 42 is arranged inside the core barrel 43 and is used to drive the needle seat 51, so that the needle seat 51 drives the fixing portion 511 and the half-wall needle 52 to move from the needle assisting position to the needle withdrawal position.

[0094] The present application does not specifically limit the structure of the auxiliary needle driving member 41. Preferably, refer to Figure 2 and Figure 6 The auxiliary needle driving member 41 is a spring sleeved outside the core barrel 43 to increase the driving effect on the core barrel 43. In other embodiments, the auxiliary needle driving member 41 can also be an elastic sheet with one end acting on the core barrel 43 and the other end acting on the housing 1.

[0095] The present application does not specifically limit the structure of the needle withdrawal drive member 42. Preferably, refer to Figure 2 and Figure 6 The needle withdrawal driving member 42 is a tension spring with one end acting on the needle seat 51 and the other end acting on the core tube 43 to increase the driving effect on the needle seat 51. In other embodiments, the needle withdrawal driving member 42 can also be a rubber band.

[0096] In a preferred embodiment, referring to Figure 1 , Figure 2 and Figure 6 The continuous blood glucose monitoring device also includes a trigger button 6 for triggering the drive component 4 and a protective member 7 detachably connected to the shell 1 and acting on the trigger button 6. After the protective member 7 is removed, the trigger button 6 can trigger the drive component 4.

[0097] Before installing the continuous blood glucose monitoring device on the human body, first remove the protective member 7 from the shell 1, and then apply pressure to the trigger button 6 so that the trigger button 6 triggers the drive component 4, so that the drive component 4 drives the puncture component 5, so as to assemble the sensor component 2 and the transmitter component 3 together and the sensor of the sensor component 2 penetrates the subcutaneous tissue; at the same time, the protective frame can prevent the trigger button 6 from being triggered by mistake, so as to improve the product quality of the continuous blood glucose monitoring device and reduce the requirements of the continuous blood glucose monitoring device for transportation or handling.

[0098] The present application does not specifically limit the structure of the protective member 7. Preferably, refer to Figure 1 , Figure 2 and Figure 6 The protective member 7 is a protective cap detachably connected to the housing 1, and the protective cap cover is arranged outside the trigger button 6 to avoid accidental triggering. In other embodiments, the protective member 7 can also be a ring structure that is sleeved outside the trigger button and detachably connected to the housing 1 and has an opening.

[0099] In a preferred embodiment, referring to Figure 1 , Figure 2 , Figure 6 , Figure 8 and Fig. 9 A sealing member 112 for sealing the first accommodating chamber 111 is provided at the cavity opening of the first accommodating chamber 111, and a through port 115 located between the first accommodating chamber 111 and the second accommodating chamber 121 is provided on the circumferential side of the shell 1. The sealing member 112 can be removed from the cavity opening of the first accommodating chamber 111 and taken out through the through port 115, so that the first accommodating chamber 111 and the second accommodating chamber 121 are connected to each other, so that the sensor component 2 can be assembled on the transmitter component 3.

[0100] Since the seal 112 seals the first accommodating cavity 111, and the sensor assembly 2 is disposed in the first accommodating cavity 111, the risk of the sensor assembly 2 being contaminated by pathogenic bacteria is reduced, thereby reducing the risk of infection to the user. In addition, the seal 112 can be removed from the cavity opening of the first accommodating cavity 111 and taken out through the opening 115, thereby achieving the effect of facilitating the user to remove the seal 112, thereby reducing the user's operating difficulty, and further improving the user's experience.

[0101] When using the continuous blood glucose monitoring device in the present application, the seal 112 is first removed through the opening 115 to release the seal of the first accommodating chamber 111, and then the needle-assisting device is triggered to move the sensor assembly 2 toward the direction close to the transmitter assembly 3, so that the sensor assembly 2 is at least partially inserted into the subcutaneous tissue of the human body, and the sensor assembly 2 is assembled with the transmitter assembly 3, thereby eliminating the need to assemble the transmitter assembly 3 and the sensor assembly 2, thereby simplifying the operating steps required when using the continuous blood glucose monitoring device, thereby improving the user experience.

[0102] In a preferred embodiment, referring to Figure 1 , Figure 2 , Figure 6 , Figure 8 and Fig. 9 The sealing member 112 includes an operating portion 114 extending to the outside of the housing 1 through a through opening 115 , so that the sealing member 112 can be taken out through the through opening 115 under the pulling action of the operating portion 114 .

[0103] That is to say, the sealing member 112 includes a main body 113 and an operating portion 114 extending to the outside of the shell 1 through a through port 115, so that when the seal of the first accommodating chamber 111 is released, the operating portion 114 is pulled, and the operating portion 114 drives the main body 113 to move, thereby separating the main body 113 from the cavity opening of the first accommodating chamber 111, and at the same time, the main body 113 is taken out through the through port 115 to complete the unsealing of the first accommodating chamber 111. During the unsealing process, it is only necessary to pull the operating portion 114, thereby simplifying the user's operational complexity of unsealing the first accommodating chamber 111, so that the user can quickly unseal the first accommodating chamber 111, thereby improving the user's experience.

[0104] The present application does not specifically limit the structure of the sealing member 112, and the sealing member 112 may adopt any one of the following implementation examples:

[0105] Implementation Example 1: In this implementation example, refer to Figure 1 , Figure 2 , Figure 6 , Figure 8 and Fig. 9 The sealing member 112 is a diaphragm structure bonded to the opening of the first accommodating cavity 111 , and the operating portion 114 extends from a side of the sealing member 112 away from the through opening 115 to the outside of the housing 1 through the through opening 115 .

[0106] Since the sealing member 112 is bonded to the opening of the first accommodating cavity 111, the sealing effect of the sealing member 112 on the first accommodating cavity 111 is increased, so as to ensure the sealing effect on the sensor assembly 2, thereby further preventing the sensor assembly 2 from being contaminated. At the same time, the operating portion 114 extends from the side of the sealing member 112 away from the through hole 115 to the outside of the housing 1 through the through hole 115, so that when the operating portion 114 is pulled, the side of the sealing member 112 away from the through hole 115 is first separated from the opening of the first accommodating cavity 111, so as to reduce the difficulty of removing the sealing member 112, thereby further improving the user experience.

[0107] In this embodiment, the material of the seal 112 is not specifically limited. Preferably, the seal 112 is a diaphragm structure made of aluminum material to improve the convenience of removing the seal 112. In other embodiments, the seal 112 can also be a diaphragm structure made of plastic or other metal materials.

[0108] In the present application, there is no specific limitation on the bonding method of the sealing member 112 and the opening of the first accommodating chamber 111. Preferably, the sealing member 112 is connected to the opening of the first accommodating chamber 111 by a heat-sealing process to reduce the difficulty of assembling the sealing member 112 and improve the production efficiency of the continuous blood glucose monitoring device. In other implementation examples, the sealing member 112 can also be bonded to the opening of the first accommodating chamber 111 by glue.

[0109] Implementation example 2. In this implementation example, the seal 112 is a plate-like structure abutting against the cavity opening of the first accommodating cavity 111, and the plate-like structure has a sealing ring abutting against the cavity opening of the first accommodating cavity 111 to increase the sealing effect of the seal 112 on the first accommodating cavity 111, while achieving the effect of facilitating the user to remove the seal 112.

[0110] Implementation example 3. In this implementation example, the sealing member 112 is a plate-like structure that abuts against the opening of the first accommodating chamber 111, and the plate-like structure has a sealing portion that extends into the first accommodating chamber 111, and the sealing portion abuts against the inner wall of the first accommodating chamber 111 to achieve sealing of the first accommodating chamber 111.

[0111] The present application does not specifically limit the structure of the housing 1. Preferably, refer to Figure 1 , Figure 2 and Figure 6 The shell 1 includes an upper shell 11 and a base 12 connected to each other. A first accommodating chamber 111 is formed inside the upper shell 11, and a second accommodating chamber 121 is formed inside the base 12. The bottom of the upper shell 11 forms a sealing plane of the first accommodating chamber 111, and a sealing member 112 is connected to the sealing plane to seal the first accommodating chamber 111.

[0112] That is to say, the shell 1 is a split structure, and since the first accommodating chamber 111 is arranged on the upper shell 11 and the second accommodating chamber 121 is arranged on the base 12, the sensor component 2 and the transmitter component 3 can be sterilized separately, and at the same time, the sensor component 2 can be easily sealed after sterilization.

[0113] Since the seal 112 is connected to the sealing plane, the connection area between the seal 112 and the upper shell 11 is increased, thereby increasing the stability of the seal 112 to ensure the sealing effect of the seal 112 on the first accommodating cavity 111 and reducing the difficulty of installing the seal 112.

[0114] The present application does not make any specific limitation on the formation method of the through-port 115. Preferably, the base 12 has a connection area and an avoidance area along its circumference, and the connection area is provided with connecting ribs connected to the upper shell 11. A through-port 115 is formed between the avoidance area and the upper shell 11 to simplify the production steps of the continuous blood glucose monitoring device, improve the production efficiency of the continuous blood glucose monitoring device, and at the same time reduce the material consumption of the continuous blood glucose monitoring device to reduce the production cost of the continuous blood glucose monitoring device.

[0115] Preferably, the connection area and the avoidance area each occupy 1 / 2 of the circumference of the base 12 to ensure smooth removal of the seal 112, thereby reducing the difficulty of removing the seal 112 and improving the user experience.

[0116] The present application does not specifically limit the connection method between the connecting rib and the upper shell 11. Preferably, the connecting rib and the upper shell 11 are fixedly connected by gluing to increase the connection stability between the base 12 and the upper shell 11 and reduce the connection cost between the base 12 and the upper shell 11. In other implementation examples, the connecting rib can also be connected to the upper shell 11 by fasteners.

[0117] In other implementation examples, the through opening 115 may be cut by the base 12 or formed by avoiding when the base 12 is formed.

[0118] The present application does not specifically limit the method for forming the sealing plane. Preferably, refer to Figure 1 , Figure 2 and Figure 6 The bottom of the upper shell 11 has an edge 116 extending outward laterally, and the edge 116 forms a sealing plane to increase the area of ​​the sealing plane, thereby further increasing the connection area between the sealing member 112 and the sealing plane, so as to further increase the sealing effect of the sealing member 112 on the first accommodating cavity 111, and further reduce the difficulty of installing the sealing member 112. In other implementation examples, the sealing plane can also be formed by the bottom end surface of the upper shell 11.

[0119] Further, see Figure 1 , Figure 2 and Figure 6 A flange 117 is provided on the outer side of the upper shell 11 , and the base 12 is connected to the flange 117 .

[0120] Specifically, the flange 117 is located on the outside of the edge 116 to avoid interference between the edge 116 and the connecting ribs of the base 12; at the same time, the setting of the flange 117 increases the connection area between the base 12 and the upper shell 11, thereby increasing the connection stability between the base 12 and the upper shell 11, so as to improve the product quality of the continuous blood glucose monitoring device, and further improve the user experience; at the same time, the structural strength of the continuous blood glucose monitoring device is increased to ensure the smoothness of the sensor of the sensor assembly 2 when penetrating the subcutaneous tissue.

[0121] In other embodiments, the housing 1 may also be an integrally formed structure to increase the structural strength of the housing 1 .

[0122] In a preferred embodiment, referring to Figure 2 and Figure 6 The shell 1 includes an upper shell 11 and a base 12 connected to each other. A first accommodating cavity 111 is formed inside the upper shell 11, and a second accommodating cavity 121 is formed inside the base 12. A mounting seat 122 for mounting the transmitter assembly 3 is provided in the second accommodating cavity 121.

[0123] Since the transmitter assembly 3 is installed on the mounting seat 122 , the stability of the transmitter assembly 3 is increased, and at the same time, the transmitter assembly 3 is facilitated to be assembled.

[0124] The present application does not specifically limit the connection method between the transmitter assembly 3 and the mounting seat 122. Preferably, the peripheral surface of the transmitter assembly 3 is tightly pressed against the inner wall of the mounting seat 122, that is, the transmitter assembly 3 is connected to the mounting seat 122 by interference fit, so as to achieve the effect of facilitating the separation of the transmitter assembly 3 from the mounting seat 122. In other implementation examples, the transmitter assembly 3 can also be connected to the mounting seat 122 by a snap-fit ​​structure.

[0125] Better, refer to Figure 2 , Figure 6 and Figure 7 The mounting seat 122 has a limiting portion 123 located at the top of the transmitter component 3, and the limiting portion 123 abuts against the top surface of the transmitter component 3 so that the limiting portion 123 can limit the transmitter component 3. That is to say, the transmitter component 3 is installed on the mounting seat 122 from bottom to top, so as to achieve the effect of facilitating the assembly of the sensor component 2 and facilitate the separation of the transmitter component 3 from the mounting seat 122.

[0126] The present application does not specifically limit the limiting portion 123. Preferably, refer to Figure 2 , Figure 6 and Figure 7 The limiting portion 123 is an annular structure arranged along the circumference of the transmitter assembly 3 to increase the limiting area of ​​the transmitter assembly 3, thereby increasing the limiting effect of the transmitter assembly 3. In other implementation examples, the limiting portion 123 can also be a block structure arranged at intervals along the circumference of the transmitter assembly 3.

[0127] Furthermore, the top of the limiting portion 123 is spaced apart from the opening of the first accommodating cavity 111 , so that an escape gap is formed between the top of the limiting portion 123 and the opening of the first accommodating cavity 111 to ensure smooth removal of the sealing member 112 .

[0128] Furthermore, the bottom of the base 12 has a contact plane, and the mounting seat 122 is extended upward from the contact plane, so that after the transmitter assembly 3 is assembled on the mounting seat 122, the bottom end surface of the transmitter assembly 3 is flush with the contact plane. At the same time, when the continuous blood glucose monitoring device is assembled on the user's body, the contact surface and the bottom end surface of the transmitter assembly 3 both contact the user's skin to increase the contact area between the continuous blood glucose monitoring device and the user, so as to reduce the discomfort caused to the user and thereby improve the user's experience.

[0129] Further, see Figure 1 , Figure 2 , the housing 1 further comprises a lower housing 13 , which is connected to the base 12 and can be removed from the base 12 to expose the transmitter assembly 3 .

[0130] That is to say, the lower shell 13 can protect the transmitter assembly 3 to prevent the transmitter assembly 3 from being damaged due to vibration during transportation or handling, so as to improve the quality stability of the continuous blood glucose monitoring device.

[0131] The present application does not specifically limit the connection method between the lower shell 13 and the base 12. Preferably, the lower shell 13 is connected to the base 12 through a snap-fit ​​structure to facilitate the removal of the lower shell 13 and improve the user experience. In other embodiments, the lower shell 13 can also be connected to the base 12 by a threaded connection.

[0132] In a preferred embodiment, the height H of the through port 115 and the thickness D of the seal 112 satisfy: H≥2D, thereby making it smoother to remove the seal 112 through the through port 115, thereby reducing the difficulty of removing the seal 112 and further improving the user experience.

[0133] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0134] 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.

[0135] 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 continuous blood glucose monitoring device, characterized in that: include: A housing (1), the interior of which comprises a first accommodating cavity (111) with an opening facing downward and a second accommodating cavity (121) located below the first accommodating cavity (111); An on-body monitoring unit, comprising a sensor component (2) arranged in the first accommodating cavity (111) and a transmitter component (3) arranged in the second accommodating cavity (121), wherein the sensor component (2) has a locking groove (21); A needle-assisting unit, comprising a driving assembly (4) and a puncture assembly (5) arranged in a first accommodating chamber (111), wherein the driving assembly (4) is used to drive the puncture assembly (5) to move so as to drive the sensor assembly (2) to be installed on the transmitter assembly (3), the driving assembly (4) comprises a locking member (431) capable of extending into the locking groove (21), and the puncture assembly (5) comprises a fixing portion (511) for pressing the locking member (431); The puncture assembly (5) and the sensor assembly (2) have a first relative position that is adjacent to each other and a second relative position that is separated. In the first relative position, the fixing portion (511) is pressed against the locking member (431) to limit the locking member (431) in the locking groove (21), thereby locking the sensor assembly (2) to the drive assembly (4). In the second relative position, the fixing portion (511) is disengaged from the locking member (431) to release the locking member (431) from the limit, thereby releasing the sensor assembly (2) from the drive assembly (4).

2. A continuous blood glucose monitoring device according to claim 1, characterized in that: The locking member (431) has at least two locking portions, and the fixing portion (511) can extend between the locking portions to limit the locking portion to the locking groove (21).

3. A continuous blood glucose monitoring device according to claim 1, characterized in that: The locking member (431) is an elastic member, and in the first relative position, the locking member (431) is in a deformed state.

4. A continuous blood glucose monitoring device according to claim 3, characterized in that: The locking member (431) comprises a connecting section (432) and a locking section (433) arranged on the side of the connecting section (432); the locking groove (21) comprises a connecting groove (211) for accommodating the connecting section (432) and a matching groove (212) arranged on the groove wall of the connecting groove (211) and for accommodating the locking section (433); in the first relative position, the locking section (433) is located in the matching groove (212); in the second relative position, the locking section (433) is disengaged from the matching groove (212).

5. A continuous blood glucose monitoring device according to claim 3, characterized in that: The locking groove (21) has a contact surface that is tightly matched with the locking member (431), and the contact surface is inclined from the center to the surrounding areas from top to bottom.

6. A continuous blood glucose monitoring device according to claim 1, characterized in that: The top surface of the sensor component (2) comprises a central area and an edge area surrounding the central area, and the locking groove (21) is arranged in the central area.

7. A continuous blood glucose monitoring device according to claim 1, characterized in that: A positioning portion (434) is provided at the bottom of the driving component (4), and a matching portion (22) is provided at the top of the sensor component (2); the positioning portion (434) can cooperate with the matching portion (22) to position the sensor component (2).

8. A continuous blood glucose monitoring device according to claim 1, characterized in that: The transmitter component (3) has a first snap-fit ​​structure (31), and the sensor component (2) has a second snap-fit ​​structure (23), and the first snap-fit ​​structure (31) can cooperate with the second snap-fit ​​structure (23) to connect the sensor component (2) and the transmitter component (3).

9. A continuous blood glucose monitoring device according to claim 1, characterized in that: A sealing member (112) for sealing the first accommodating chamber (111) is provided at the opening of the first accommodating chamber (111); a through opening (115) located between the first accommodating chamber (111) and the second accommodating chamber (121) is provided on the circumferential side of the shell (1); the sealing member (112) can be removed from the opening of the first accommodating chamber (111) and taken out through the through opening (115), so that the first accommodating chamber (111) and the second accommodating chamber (121) are connected to each other, so that the sensor component (2) can be assembled on the transmitter component (3).

10. A continuous blood glucose monitoring device according to claim 1, characterized in that: The driving assembly (4) comprises a needle-assisting driving member (41) and a needle-retracting driving member (42), wherein the needle-assisting driving member (41) is used to drive the puncture assembly (5) to move from an initial position to a needle-assisting position, so as to drive the sensor assembly (2) to be installed on the transmitter assembly (3), and the needle-retracting driving member (42) is used to drive the puncture assembly (5) to move from the needle-assisting position to the needle-retracting position, so as to separate the puncture assembly (5) from the sensor assembly (2).

11. A continuous blood glucose monitoring device according to claim 1, characterized in that: The continuous blood glucose monitoring device further comprises a trigger button (6) for triggering the drive assembly (4) and a protective member (7) detachably connected to the housing (1) and acting on the trigger button (6); after the protective member (7) is removed, the trigger button (6) can trigger the drive assembly (4).

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