Continuous blood glucose monitoring device

Abstract

The utility model relates to the technical field of blood glucose monitoring, and discloses a continuous blood glucose monitoring device which comprises a shell, an in-vivo monitoring unit and a sealing element, the shell is provided with a first containing cavity with a downward cavity opening and a second containing cavity located below the first containing cavity, a passing opening located between the first containing cavity and the second containing cavity is formed in the peripheral side of the shell, and the sealing element is arranged in the first containing cavity. 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 sealing piece is arranged at the position of a cavity opening of the first containing cavity and used for sealing the first containing cavity, and the sealing piece can be removed from the position of the cavity opening of the first containing cavity and taken out from the passing opening. According to the continuous blood glucose monitoring device, the first containing cavity and the second containing cavity are communicated with each other, so that the sensor assembly can be assembled on the transmitter assembly, and when the continuous blood glucose monitoring device is used, the step of assembling the transmitter assembly and the sensor assembly is omitted, so that the operation steps needed when the continuous blood glucose monitoring device is used are simplified, and the use efficiency of the continuous blood glucose monitoring device is improved. And the use experience of the user is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of blood glucose monitoring, 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] Monitoring components generally include sensors and transmitters, and the two often require different sterilization methods. For the transmitter part, gas sterilization is generally used, such as ethylene oxide gas sterilization. Since the biological enzymes on the sensor will chemically react with gases such as ethylene oxide, affecting the activity of the biological enzymes and thus affecting the monitoring accuracy, the sensor cannot be sterilized by gas sterilization, and radiation sterilization is used instead.

[0004] At present, in order to prevent the sterilized sensor from being contaminated by pathogenic bacteria again, the sensor and the transmitter are generally packaged separately, that is, the transmitter assembly is assembled on the needle aid, and the sensor is stored in a sterile packaging bag; when the user uses it, it is necessary to first take the sensor out of the sterile packaging bag, then remove the protective cover of the needle aid, and then assemble the sensor on the transmitter, and then unlock the needle aid, and finally implant the sensor into the subcutaneous tissue of the human body through the needle aid. This makes the user's operation steps more complicated, which in turn affects the user's experience. Utility Model Content

[0005] The present application provides a continuous blood glucose monitoring device to simplify the operation steps of a user using the continuous blood glucose monitoring device, thereby improving the user experience.

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

[0007] A continuous blood glucose monitoring device, comprising:

[0008] A shell, wherein the first accommodating cavity with the cavity opening facing downward and the second accommodating cavity located below the first accommodating cavity are provided inside the shell, and a through opening located between the first accommodating cavity and the second accommodating cavity is provided on the circumference of the shell;

[0009] 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;

[0010] A sealing member is disposed at the cavity opening of the first accommodating cavity and is used to seal the first accommodating cavity. The sealing member can be removed from the cavity opening of the first accommodating cavity and taken out through the through port, so that the first accommodating cavity and the second accommodating cavity are interconnected, so that the sensor assembly can be assembled on the transmitter assembly.

[0011] By adopting the above-mentioned technical scheme, when using the continuous blood glucose monitoring device in the present application, the seal is first taken out through the through port to release the seal of the first accommodating chamber, and then the needle-assisting device is triggered to move the sensor assembly toward the direction close to the transmitter assembly, so that the sensor assembly is at least partially inserted into the subcutaneous tissue of the human body, and the sensor assembly is assembled with the transmitter assembly, thereby eliminating the step of assembling the transmitter assembly and the sensor assembly, so as to simplify the operating steps required when using the continuous blood glucose monitoring device, thereby improving the user experience; at the same time, the user's operating difficulty is reduced, so that the user can quickly install the continuous blood glucose monitoring device on the skin, shortening the user's operating time, reducing the risk of the sensor assembly being exposed to the air and being contaminated, thereby avoiding the risk of the user being infected.

[0012] Optionally, the sealing member includes an operating portion extending through the through opening to the outside of the housing, so that the sealing member can be taken out through the through opening under the pulling action of the operating portion.

[0013] By adopting the above technical solution, when the seal of the first accommodating chamber is unsealed, the operating part is pulled, and the operating part drives the seal to move, thereby separating the seal from the cavity opening of the first accommodating chamber, and at the same time the seal is taken out through the through port to complete the unsealing of the first accommodating chamber. During the unsealing process, it is only necessary to pull the operating part, thereby simplifying the user's operating steps for unsealing the first accommodating chamber, so that the user can quickly unseal the first accommodating chamber, thereby improving the user's experience.

[0014] Optionally, the sealing member is a diaphragm structure bonded to the cavity opening of the first accommodating cavity, and the operating portion extends from a side of the sealing member away from the through opening to the outside of the shell through the through opening.

[0015] By adopting the above technical solution, since the sealing member is bonded to the cavity opening of the first accommodating cavity, the sealing effect of the sealing member on the first accommodating cavity is increased to ensure the sealing effect on the sensor assembly, thereby further avoiding contamination of the sensor assembly; at the same time, the operating part extends from the side of the sealing member away from the through-port to the outside of the shell through the through-port, so that when the operating part is pulled, the side of the sealing member away from the through-port is first separated from the cavity opening of the first accommodating cavity, so as to reduce the difficulty of removing the sealing member and further improve the user experience.

[0016] Optionally, the shell includes a connected upper shell and a base, the first accommodating chamber is formed inside the upper shell, the second accommodating chamber is formed inside the base, a sealing plane is provided at the bottom of the upper shell, and the sealing member is connected to the sealing plane to seal the first accommodating chamber.

[0017] By adopting the above technical solution, since the first accommodating chamber is arranged in the upper shell and the second accommodating chamber is arranged in the base, it is possible to achieve the effect of facilitating the sterilization of the transmitter assembly and the sensor assembly respectively, and at the same time, it is possible to achieve the effect of facilitating the sealing of the first accommodating chamber, thereby reducing the production difficulty of the continuous blood glucose monitoring device, thereby reducing the production cost of the continuous blood glucose monitoring device and improving the production efficiency of the continuous blood glucose monitoring device. At the same time, since the seal is connected to the sealing plane, the connection area between the seal and the upper shell is increased, thereby increasing the stability of the seal, so as to ensure the sealing effect of the seal on the first accommodating chamber, and at the same time reducing the difficulty of installing the seal.

[0018] Optionally, the base has a connection area and an avoidance area along its circumference, the connection area is provided with connecting ribs connected to the upper shell, and the through opening is formed between the avoidance area and the upper shell.

[0019] By adopting the above-mentioned technical scheme, a through opening is formed between the avoidance area and the upper shell, thereby simplifying the production steps of the continuous blood glucose monitoring device, improving the production efficiency of the continuous blood glucose monitoring device, and reducing the material consumption of the continuous blood glucose monitoring device, thereby reducing the production cost of the continuous blood glucose monitoring device.

[0020] Optionally, the bottom of the upper shell has an edge extending laterally outward, and the edge forms the sealing plane.

[0021] By adopting the above technical solution, a sealing plane is formed along the edge, thereby increasing the area of ​​the sealing plane, further increasing the connection area between the seal and the sealing plane, and further increasing the sealing effect of the seal on the first accommodating cavity, while further reducing the difficulty of installing the seal, thereby further improving the production efficiency of the continuous blood glucose monitoring device.

[0022] Optionally, a flange is provided on the outer side of the upper shell, and the base is connected to the flange.

[0023] By adopting the above technical solution, since the base is connected to the flange, the connection area between the base and the upper shell is increased, thereby increasing the connection stability between the base and the upper shell, thereby improving the product quality of the continuous blood glucose monitoring device and further improving 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 when penetrating the subcutaneous tissue.

[0024] Optionally, the shell includes an upper shell and a base connected to each other, the first accommodating cavity is formed inside the upper shell, the second accommodating cavity is formed inside the base, and a mounting base for mounting the transmitter assembly is provided in the second accommodating cavity.

[0025] By adopting the above technical solution, since the transmitter assembly is installed on the mounting base, the stability of the transmitter assembly is increased, and at the same time, the transmitter assembly is facilitated to further improve the production efficiency of the continuous blood glucose monitoring device.

[0026] Optionally, the housing further comprises a lower housing connected to the base and capable of being removed from the base to expose the transmitter assembly.

[0027] By adopting the above technical solution, the lower shell can protect the transmitter assembly to avoid damage to the transmitter assembly due to vibration during transportation or handling, thereby improving the quality stability of the continuous blood glucose monitoring device.

[0028] Optionally, a height H of the through port and a thickness D of the sealing member satisfy: H≥2D.

[0029] By adopting the above technical solution, since H≥2D, the height of the through port is increased, thereby making it smoother to take out the seal through the through port, thereby reducing the difficulty of taking out the seal, and further improving the user experience.

[0030] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0031] The continuous blood glucose monitoring device in the present application includes a shell, an on-body monitoring unit and a sealing member. The shell has a first accommodating chamber with a cavity opening facing downward and a second accommodating chamber located below the first accommodating chamber. A through hole located between the first accommodating chamber and the second accommodating chamber is provided on the circumferential side of the shell. The on-body monitoring unit includes a sensor component provided in the first accommodating chamber and a transmitter component provided in the second accommodating chamber. The sealing member is provided at the cavity opening of the first accommodating chamber and is used to seal the first accommodating chamber. The sealing member can be removed from the cavity opening of the first accommodating chamber and taken out through the through hole, so that the first accommodating chamber and the second accommodating chamber are interconnected, so that the sensor component can be assembled on the transmitter component, and then when using the continuous blood glucose monitoring device in the present application, the steps of assembling the transmitter component and the sensor component are omitted, so as to simplify the operation steps required when using the continuous blood glucose monitoring device, thereby improving the user experience; at the same time, the user's operation difficulty is reduced, so that the user can quickly install the continuous blood glucose monitoring device on the skin, shorten the user's operation time, reduce the risk of the sensor component being exposed to the air and being contaminated, and thus avoid the risk of the user being infected. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] 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:

[0033] 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;

[0034] Figure 2 A cross-sectional view of a continuous blood glucose monitoring device according to one embodiment of the present application;

[0035] Figure 3 for Figure 2 A magnified view of the middle A area;

[0036] Figure 4 This is a partial structural schematic diagram of a continuous blood glucose monitoring device according to one embodiment of the present application;

[0037] Figure 5 This is a schematic structural diagram of the upper housing described in one embodiment of the present application;

[0038] Figure 6 A cross-sectional view from another perspective of the continuous blood glucose monitoring device according to one embodiment of the present application;

[0039] Figure 7 for Figure 6 Enlarged view of the B area;

[0040] Figure 8This is a schematic structural diagram of the core barrel in one embodiment of the present application;

[0041] Fig. 9 This is a schematic diagram of the structure of the sensor assembly according to one embodiment of the present application.

[0042] Reference numerals:

[0043] 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;

[0044] 2. sensor assembly; 21. locking groove; 211. connecting groove; 212. matching groove; 22. matching portion; 23. second engaging structure;

[0045] 3. Transmitter assembly; 31. First engaging structure;

[0046] 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;

[0047] 5. puncture assembly; 51. needle seat; 511. fixing part; 52. half-wall needle;

[0048] 6. Trigger button;

[0049] 7. Protective parts. DETAILED DESCRIPTION

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] Reference Figures 1 to 9 A continuous blood glucose monitoring device comprises a shell 1, an on-body monitoring unit and a sealing member 112, wherein the shell 1 has a first accommodating chamber 111 with a cavity opening facing downward and a second accommodating chamber 121 located below 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 circumference of the shell 1; the on-body monitoring unit comprises a sensor component 2 arranged in the first accommodating chamber 111 and a transmitter component 3 arranged in the second accommodating chamber 121; the sealing member 112 is arranged at the cavity opening of the first accommodating chamber 111 and is used to seal the first accommodating chamber 111, and 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.

[0056] When using the continuous blood glucose monitoring device in the present application, the seal 112 is first removed through the through port 115 to release the seal of the first accommodating chamber 111, and then the needle aid is triggered to move the sensor assembly 2 toward the direction close to the transmitter assembly 3, so that at least a portion of the sensor assembly 2 is 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.

[0057] At the same time, the user's operating difficulty is reduced so that the user can quickly install the continuous blood glucose monitoring device on the skin, shortening the user's operating time to reduce the risk of the sensor component 2 being exposed to the air and contaminated, thereby avoiding the risk of the user being infected.

[0058] In a preferred embodiment, referring to Figure 1 , Figure 2 , Figure 4 and Figure 5 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 .

[0059] 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.

[0060] 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 embodiments:

[0061] Embodiment 1, in this embodiment, refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 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 .

[0062] 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.

[0063] 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 ensure the convenience of removing the seal 112. In other implementation examples, the seal 112 can also be a diaphragm structure made of plastic or other metal materials.

[0064] 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.

[0065] Embodiment 2. In this embodiment, 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, so as to increase the sealing effect of the seal 112 on the first accommodating cavity 111, and at the same time improve the convenience for the user to remove the seal 112.

[0066] Embodiment 3. In this embodiment, 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.

[0067] The present application does not specifically limit the structure of the housing 1. Preferably, refer to Figure 1 , Figure 2 , Figure 4 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 opening of the first accommodating chamber 111. The sealing member 112 is connected to the sealing plane to seal the first accommodating chamber 111.

[0068] That is to say, the shell 1 is a split structure, and since the first accommodating chamber 111 is provided on the upper shell 11 and the second accommodating chamber 121 is provided on the base 12, it is convenient to sterilize the sensor component 2 and the transmitter component 3 separately, and at the same time, it is convenient to seal the first accommodating chamber 111, thereby reducing the production difficulty of the continuous blood glucose monitoring device, reducing the production cost of the continuous blood glucose monitoring device and improving the production efficiency of the continuous blood glucose monitoring device.

[0069] 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.

[0070] The present application does not specifically limit the formation method of the through hole 115. Preferably, refer to Figure 2 and Figure 4 The base 12 has a connection area and an avoidance area along its circumference. The connection area is provided with connecting ribs connected to the upper shell 11. A through opening 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.

[0071] 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.

[0072] 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.

[0073] In other embodiments, the through opening 115 may be cut by the base 12 or formed by avoiding when the base 12 is formed.

[0074] The present application does not specifically limit the method for forming the sealing plane. Preferably, refer to Figure 6The 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 embodiments, the sealing plane can also be formed by the bottom end surface of the upper shell 11.

[0075] Further, see Figure 6 and Figure 8 A flange 117 is provided on the outer side of the upper shell 11 , and the base 12 is connected to the flange 117 .

[0076] 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.

[0077] In other embodiments, the housing 1 may also be an integrally formed structure to increase the structural strength of the housing 1 .

[0078] In a preferred embodiment, referring to Figure 1 , Figure 2 , Figure 4 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.

[0079] 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.

[0080] 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 embodiments, the transmitter assembly 3 can also be connected to the mounting seat 122 by a snap-fit ​​structure.

[0081] Better, refer to Figure 3 and Figure 6The 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.

[0082] The present application does not specifically limit the limiting portion 123. Preferably, refer to Figure 3 and Figure 6 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 embodiments, the limiting portion 123 can also be a block structure arranged at intervals along the circumference of the transmitter assembly 3.

[0083] 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 .

[0084] 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.

[0085] In a preferred embodiment, referring to Figure 1 , Figure 2 and Figure 6 The housing 1 further includes 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 .

[0086] 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.

[0087] 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.

[0088] 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.

[0089] In a preferred embodiment, referring to Figure 2 and Figure 6 The sensor assembly 2 has a locking groove 21, and the continuous blood glucose monitoring device also includes a needle-assisting unit, which includes a driving assembly 4 and a puncture assembly 5 arranged in the first accommodating chamber 111. 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 includes 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 an adjacent first 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 to 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.

[0090] 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.

[0091] 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. 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 achieving the effect of separating the sensor assembly 2 from the driving assembly 4 when the needle is withdrawn.

[0092] The present application does not specifically limit the structure of the fixing portion 511. Preferably, refer to 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.

[0093] 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:

[0094] Embodiment 1, in this embodiment, refer to Fig. 9 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.

[0095] 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.

[0096] 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 .

[0097] 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.

[0098] The present application does not specifically limit the number of locking parts. Preferably, 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 parts, 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.

[0099] 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 circumferential side 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.

[0100] 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.

[0101] That is to say, the locking member 431 is made of elastic material, for example, elastic plastic or elastic metal material.

[0102] 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 ensuring smooth separation of the sensor assembly 2 and the driving assembly 4 when the needle is withdrawn.

[0103] The present application does not specifically limit the limiting cooperation mode between the locking member 431 and the locking groove 21, and any one of the following embodiments may be adopted:

[0104] Embodiment 1, in this embodiment, refer to Figure 7 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.

[0105] 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.

[0106] 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 surrounding areas from top to bottom.

[0107] 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.

[0108] 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.

[0109] It should be noted that the contact surface is tilted from top to bottom from the center to the periphery, which means that the contact surface is tilted from top to bottom in a direction away from the locking member 431 .

[0110] In a preferred embodiment, referring to Figure 3 , Figure 8 and Fig. 9 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.

[0111] 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.

[0112] The present application does not specifically limit the structure of the positioning portion 434 and the matching portion 22. Preferably, refer to Figure 3 , Figure 8 and Fig. 9, 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 implementation examples, 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 on the top surface of the sensor component 2 to accommodate the annular rib.

[0113] 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.

[0114] 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.

[0115] In a preferred embodiment, referring to Figure 2 , Figure 6 and Figure 8 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.

[0116] In a preferred embodiment, referring to Figure 2 , Figure 6 and Figure 7The 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.

[0117] 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.

[0118] 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.

[0119] In a preferred embodiment, referring to Figure 2 , Figure 4 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.

[0120] 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.

[0121] The present application does not specifically limit the structure of the protective member 7. Preferably, refer to 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 implementation examples, 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.

[0122] 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:

[0123] Embodiment 1. In this embodiment, referring to Figure 3 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 .

[0124] 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.

[0125] The present application does not specifically limit the structures of the first engaging structure 31 and the second engaging structure 23. Figure 3 and Figure 7 The first engaging structure 31 is a protrusion arranged on the inner side of the transmitter component 3, and the second engaging structure 23 is a slot arranged on the peripheral side of the sensor component 2. The protrusion and the slot are engaged with each other 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.

[0126] 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 .

[0127] 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 .

[0128] The present application does not specifically limit the number of the first engaging structures 31 and the second engaging structures 23. Figure 3 and Figure 7 , a plurality of first engaging structures 31 are arranged at intervals along the circumference of the inner wall of the transmitter assembly 3, and a plurality of second engaging structures 23 are arranged corresponding to the first engaging 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 engaging structure 31 and the second engaging structure 23 may be arranged one each.

[0129] 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.

[0130] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0131] 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.

[0132] 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 shell (1), wherein the shell has a first accommodating cavity (111) with an opening facing downward and a second accommodating cavity (121) located below the first accommodating cavity (111); a through opening (115) located between the first accommodating cavity (111) and the second accommodating cavity (121) is provided on the periphery of the shell (1); 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); A sealing member (112) is arranged at the cavity opening of the first accommodating cavity (111) and is used to seal the first accommodating cavity (111); the sealing member (112) can be removed from the cavity opening of the first accommodating cavity (111) and taken out through the through port (115), so that the first accommodating cavity (111) and the second accommodating cavity (121) are connected to each other, so that the sensor component (2) can be assembled on the transmitter component (3).

2. A continuous blood glucose monitoring device according to claim 1, characterized in that: The sealing member (112) comprises an operating portion (114) extending to the outside of the housing (1) through the 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).

3. A continuous blood glucose monitoring device according to claim 2, characterized in that: The sealing member (112) is a diaphragm structure bonded to the cavity 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).

4. A continuous blood glucose monitoring device according to claim 1, characterized in that: The shell (1) comprises an upper shell (11) and a base (12) connected to each other; the first accommodating chamber (111) is formed inside the upper shell (11); the second accommodating chamber (121) is formed inside the base (12); a sealing plane is provided at the bottom of the upper shell (11); and the sealing member (112) is connected to the sealing plane to seal the first accommodating chamber (111).

5. A continuous blood glucose monitoring device according to claim 4, characterized in that: The base (12) has a connection area and an escape area along its circumference, the connection area is provided with a connection rib connected to the upper shell (11), and the through opening (115) is formed between the escape area and the upper shell (11).

6. A continuous blood glucose monitoring device according to claim 4, characterized in that: The bottom of the upper shell (11) has an edge (116) extending laterally outward, and the edge (116) forms the sealing plane.

7. A continuous blood glucose monitoring device according to claim 4, characterized in that: The outer side of the upper shell (11) is provided with a flange (117), and the base (12) is connected to the flange (117).

8. A continuous blood glucose monitoring device according to claim 1, characterized in that: The shell (1) comprises an upper shell (11) and a base (12) connected to each other, the upper shell (11) forming the first accommodating cavity (111) inside, the base (12) forming the second accommodating cavity (121) inside, and the second accommodating cavity (121) being provided with a mounting seat (122) for mounting the transmitter assembly (3).

9. A continuous blood glucose monitoring device according to claim 8, characterized in that: 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).

10. A continuous blood glucose monitoring device according to claim 1, characterized in that: The height H of the through opening (115) and the thickness D of the sealing member (112) satisfy: H≥2D.

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