In-vivo blood glucose monitoring device

Abstract

Disclosed in the present application is an in-vivo blood glucose monitoring device, which comprises a housing, a bottom housing, an in-vivo monitoring unit, and a sealing assembly. The housing is provided with a first end and a second end which are oppositely arranged along a first direction, and an interface opening is formed in the second end. The bottom housing is connected with the second end, and an implantation opening is formed in the bottom housing. The in-vivo monitoring unit comprises a first electronic unit fixed to the interior of the housing and a second electronic unit fixed to the bottom housing. The first electronic unit comprises a sensor, and the second electronic unit comprises a signal processing module. The sealing assembly abuts against the housing and / or the bottom housing and is located between the first electronic unit and the second electronic unit and used for sealing the interface opening. The sealing assembly is movable along a second direction to release sealing, and the second direction is perpendicular to the first direction. During use, sealing can be released by simply moving the sealing assembly along the second direction, eliminating the need to separate the bottom housing from the housing, thereby simplifying the product's usage steps and reducing the operational difficulty.

Description

In-body blood glucose monitoring device

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on March 29, 2024, with application number "202410377162.0" and invention name "A In Vivo Blood Glucose Monitoring Device", the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of medical equipment, and in particular to an in-vivo blood glucose monitoring device. Background Art

[0003] CGM (Continuous Glucose Monitoring) is a medical device used to continuously monitor blood sugar levels in patients with diabetes. Compared to traditional blood sugar monitoring methods, CGM provides continuous and detailed blood sugar level data, helping users better manage their blood sugar status.

[0004] To use the CGM, the user places the housing on the skin and presses the trigger button. The puncture needle and sensor pin inside the housing move toward the skin and puncture it. The bio-enzymes on the sensor react with the subcutaneous tissue fluid to produce an electrochemical reaction, which is converted into an electrical signal and then provided to the user via a blood sugar reading. The electronic components used to monitor the host's blood sugar level and send signals to a display device are typically integrated into the on-body monitoring unit. Once implanted, the on-body monitoring unit is attached to the host's skin for continuous monitoring.

[0005] In-body monitoring units are generally categorized as either integrated or split. Integrated units are factory-assembled, with the internal sensor and signal transmitter already connected, allowing for immediate use without any assembly. However, integrated units are more expensive to manufacture, and the sterilization process can easily lead to sensor failure, resulting in lower product yields and unreliable reliability.

[0006] Although the split-type on-body monitoring unit is highly reliable, it is not fully assembled at the factory and users need to assemble it themselves before use. Specifically, this type of product usually divides the on-body monitoring unit into two parts, one of which is equipped with a sensor and the other is equipped with a signal transmitter, and these two parts are fixed in two shells respectively. After the user receives the product, they need to tear off the sealing film on the two shells separately and assemble the two shells into one before they can perform the implantation operation. This makes the product use steps more cumbersome, the user's learning cost is high, and the user experience is poor.

[0007] Summary of the Invention

[0008] The present application provides an in vivo blood glucose monitoring device to solve the problem that when a user uses an in vivo blood glucose monitoring device provided with a split in vivo monitoring unit, the operation steps are cumbersome, the use is relatively inconvenient, and the internal components are easily contaminated by the external environment.

[0009] The technical solutions adopted in this application are:

[0010] An in-vivo blood glucose monitoring device comprises an outer shell, the outer shell having a first end and a second end, the second end being provided with a mating port, the first end and the second end being arranged opposite to each other along a first direction; a bottom shell, the bottom shell being connected to the second end and being provided with an implantation port; an in-vivo monitoring unit, the in-vivo monitoring unit comprising a first electronic unit fixed inside the outer shell and a second electronic unit fixed to the bottom shell, the first electronic unit comprising a sensor, and the second electronic unit comprising a signal processing module; and a sealing assembly, the sealing assembly abutting the outer shell and / or the bottom shell and being located between the first electronic unit and the second electronic unit for sealing the mating port; the sealing assembly can move along a second direction to release the seal on the mating port so that the mating port is connected to the implantation port, the second direction being perpendicular to the first direction.

[0011] Preferably, a mounting channel for at least partially accommodating the sealing assembly is provided between the outer shell and the bottom shell, and the mounting channel has a mounting opening that penetrates the outer shell and / or the bottom shell along the second direction.

[0012] Preferably, the sealing assembly includes a sealing portion and a gripping portion extending from the sealing portion, and the gripping portion protrudes out of the installation opening.

[0013] Preferably, the sealing assembly includes a connecting member and a sealing member fixed to the connecting member, and the sealing member abuts against the housing to seal the fitting opening.

[0014] Preferably, the outer shell and the bottom shell can rotate relative to each other to have a first relative position and a second relative position. In the first relative position, the sealing assembly seals the fitting opening, and in the second relative position, the sealing assembly releases the seal.

[0015] Preferably, at the first relative position, there is a first distance between the outer shell and the bottom shell, and at the second relative position, there is a second distance between the outer shell and the bottom shell, and the first distance is smaller than the second distance.

[0016] Preferably, the sealing assembly includes a sealing portion clamped between the outer shell and the bottom shell, and a thickness of the sealing portion is greater than or equal to the first distance.

[0017] Preferably, the outer shell is provided with a fixing protrusion, and the bottom shell is provided with a fixing groove, the fixing groove has a locking position and an unlocking position spaced apart in the circumferential direction, and in the first direction, there is a height difference between the locking position and the unlocking position.

[0018] Preferably, the fixing groove further includes an extension section provided between the locking position and the unlocking position, and the extension section has a guide surface for smoothly connecting the locking position and the unlocking position.

[0019] Preferably, a trigger unit is provided at the first end, and a locking member is further provided inside the housing, the locking member being used to abut between the trigger unit and the sealing assembly to prevent the trigger unit from moving toward the sealing assembly.

[0020] Preferably, the locking member extends along the first direction to have an acting end and a stopping end, the acting end is used to abut and cooperate with the sealing assembly, and the stopping end is used to lock the trigger unit.

[0021] Preferably, a pushing member is further provided in the housing, and the pushing member is used to apply a pushing force toward the first direction to the locking member.

[0022] Preferably, the in-body blood glucose monitoring device further comprises an auxiliary needle unit and a puncture unit arranged inside the shell, a trigger unit is provided at the first end, and the trigger unit is triggered once. The auxiliary needle unit drives the puncture unit to move in a first direction to electrically connect the two electronic units and insert the sensor part into the host body.

[0023] Preferably, the in vivo blood glucose monitoring device also includes a needle-assisting unit and a puncture unit arranged inside the shell. The needle-assisting unit includes at least two clamping parts. The clamping part is located on the outside of the puncture unit to limit the movement of the puncture unit relative to the clamping part. A limiting sleeve is also provided inside the shell. The limiting sleeve has a limiting channel extending along a first direction. The clamping part is located in the limiting channel and can move along the first direction in the limiting channel; when the clamping part moves to a release position relative to the limiting channel, the clamping part releases the puncture unit so that the puncture unit moves along a third direction relative to the clamping part, and the third direction is opposite to the first direction.

[0024] Preferably, the limiting sleeve includes a clamping section and a release section. In the first direction, the cross-sectional area of ​​the clamping section is the same, and the cross-sectional area of ​​the release section gradually increases. The clamping portion includes an inclined section and a fixed section. In the first direction, the cross-sectional area of ​​the fixed section is the same, and the cross-sectional area of ​​the inclined section gradually increases.

[0025] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0026] In the present application, the needle-assisting unit and the first electronic unit are fixed in the outer shell, and the second electronic unit is fixed in the bottom shell, thereby dividing the in vivo blood glucose monitoring device into two modules, wherein the puncture unit, sensor and other components with higher sterilization requirements are concentrated in one module (inside the outer shell). Therefore, before leaving the factory, the cover shell and the bottom shell modules can be sterilized with different processes or levels respectively. After the sterilization is completed, the outer shell and the bottom shell are assembled into one, and a sealing component is set in the first electronic unit and the second electronic unit to isolate the internal chambers of the outer shell and the bottom shell. Avoid the problem of sensor or electronic component failure during the sterilization process. In addition, the bottom shell and the outer shell have been fixed when leaving the factory, and the user does not need to perform the fixing operation of the bottom shell and the outer shell before use, which reduces the operation steps and improves the user experience.

[0027] Furthermore, the bottom shell and outer shell are already connected at the factory, with space reserved between them for disassembly of the sealing assembly. This means that users do not need to assemble the bottom shell and outer shell, nor do they need to remove the sealing films on each. Simply moving the sealing assembly in the second direction allows the interior of the outer shell to communicate with the interior of the bottom shell. This greatly simplifies the product's use, reduces operational difficulty, and makes pre-use operations simpler and more convenient. Furthermore, before and after the sealing assembly moves, the outer shell and bottom shell remain coaxial, with only space between them. This allows the bottom shell to block the mating opening of the outer shell when the sealing assembly is withdrawn laterally. Although the mating opening is connected to the outside environment, the path for dust, bacteria, and the like to enter the mating opening becomes more tortuous due to the obstruction of the bottom shell. This reduces the risk of bacteria entering the inner shell through the mating opening and improves the cleanliness of the components within the outer shell.

[0028] The sealing assembly moves in a second direction perpendicular to the first direction (implantation direction), so that the movement of the sealing assembly will not affect the movement of the auxiliary needle unit inside the shell, reducing the risk of interference between the sealing assembly and the auxiliary needle unit's implantation movement, and ensuring that after the sealing assembly contacts the seal, the auxiliary needle unit can reliably perform the implantation movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] 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:

[0030] FIG1 is a cross-sectional view of an in-vivo blood glucose monitoring device according to one embodiment of the present application;

[0031] FIG2 is a cross-sectional view of an in-body blood glucose monitoring device in a state where the sealing assembly is removed along a second direction according to an embodiment of the present application;

[0032] FIG3 is a cross-sectional view of the in-body blood glucose monitoring device in FIG2 , wherein the auxiliary needle unit moves along the first direction to a release position;

[0033] FIG4 is a cross-sectional view of the in-vivo blood glucose monitoring device in FIG3 , wherein the puncture unit moves along the third direction to the needle withdrawal position;

[0034] FIG5 is a schematic structural diagram of a sealing assembly according to an embodiment of the present application;

[0035] FIG6 is a schematic structural diagram of the other side of the sealing assembly in FIG5 ;

[0036] FIG7 is a cross-sectional view of a portion of an in-body blood glucose monitoring device according to an embodiment of the present application;

[0037] FIG8 is a cross-sectional view of a portion of an in-body blood glucose monitoring device according to another embodiment of the present application;

[0038] FIG9 is a cross-sectional view of a portion of the in-body blood glucose monitoring device in FIG8 when the sealing assembly is removed along the second direction;

[0039] FIG10 is a schematic structural diagram of an in-vivo blood glucose monitoring device according to one embodiment of the present application;

[0040] FIG11 is a schematic structural diagram of a portion of an in-body blood glucose monitoring device according to an embodiment of the present application;

[0041] FIG12 is a schematic structural diagram of a needle-assisting unit according to an embodiment of the present application.

[0042] in:

[0043] 1 housing; 11 mating opening; 12 booster; 13 reset member; 14 mounting channel; 141 mounting opening; 15 elastic claw; 16 mating rib; 17 placement groove; 18 fixing protrusion; 2 bottom shell; 21 implantation opening; 22 fixing groove; 221 locking position; 222 unlocking position; 223 extension section; 23 guide channel; 3 sealing assembly; 31 sealing portion; 32 gripping portion; 33 sealing member; 34 connecting member; 341 hook; 35 shielding portion ; 4 On-body monitoring unit; 41 First electronic unit; 42 Second electronic unit; 5 Needle-assisting unit; 51 Clamping portion; 511 Fixed section; 512 Inclined section; 52 Elastic rib position; 6 Puncture unit; 7 Locking member; 71 Stop protrusion; 72 Outer flange; 73 Accommodating space; 74 Pushing member; 8 Limiting sleeve; 81 Limiting channel; 811 Clamping section; 812 Release section; 82 Sliding groove; 9 Trigger unit; 91 Trigger button; 92 Trigger rib. DETAILED DESCRIPTION

[0044] 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.

[0045] As shown in Figures 1 and 2, an in vivo blood glucose monitoring device includes a shell 1, the shell 1 has a first end and a second end, the second end is provided with a mating port 11, and the first end and the second end are arranged opposite to each other along a first direction; a bottom shell 2, the bottom shell 2 is connected to the second end, and the bottom shell 2 is provided with an implantation port 21; an in vivo monitoring unit 4, the in vivo monitoring unit 4 includes a first electronic unit 41 fixed inside the shell 1 and a second electronic unit 42 fixed to the bottom shell 2, the first electronic unit 41 includes a sensor, and the second electronic unit 42 includes a signal processing module; and a sealing component 3, the sealing component 3 abuts against the shell 1 and / or the bottom shell 2 and is located between the first electronic unit 41 and the second electronic unit 42, for sealing the mating port 11; the sealing component 3 can move along the second direction to release the seal of the mating port 11 so that the mating port 11 is connected to the implantation port 21, and the second direction is perpendicular to the first direction.

[0046] In the present application, the needle-assisting unit 5 and the first electronic unit 41 are fixed in the outer shell 1, and the second electronic unit 42 is fixed in the bottom shell 2, thereby dividing the in vivo blood glucose monitoring device into two modules, wherein the puncture unit 6, sensor and other components with higher sterilization requirements are concentrated in one module (inside the outer shell 1), so before leaving the factory, the cover shell and the bottom shell 2 modules can be sterilized with different processes or levels respectively. After the sterilization is completed, the outer shell 1 and the bottom shell 2 are assembled into one, and a sealing component 3 is set in the first electronic unit 41 and the second electronic unit 42 to isolate the internal chambers of the outer shell 1 and the bottom shell 2. Avoid the problem of sensor or electronic component failure during the sterilization process. And when leaving the factory, the bottom shell 2 and the outer shell 1 have been fixed, and the user does not need to perform the fixing operation of the bottom shell 2 and the outer shell 1 before use, which reduces the operation steps and improves the user experience.

[0047] Furthermore, upon shipment, the bottom shell 2 and outer shell 1 are already connected, with space reserved between them for disassembly of the sealing assembly 3. This allows users to connect the interiors of the outer shell 1 and bottom shell 2 by simply moving the sealing assembly 3 in the second direction. This significantly simplifies product usage, reduces operational difficulty, and makes pre-use operations simpler and more convenient. Furthermore, before and after the movement of the sealing assembly 3, the outer shell 1 and bottom shell 2 remain coaxial, with only a space between them. This allows the sealing assembly 3 to be withdrawn laterally, while the bottom shell 2 still blocks the mating opening 11 of the outer shell 1. Although the mating opening 11 is open to the outside environment, the path for dust, bacteria, and the like to enter the mating opening 11 becomes more tortuous due to the obstruction of the bottom shell 2. This reduces the risk of bacteria entering the inner shell 1 through the mating opening 11 and improves the cleanliness of the components within the outer shell 1. The sealing component 3 moves in a second direction perpendicular to the first direction (implantation direction), so that the movement of the sealing component 3 will not affect the movement of the auxiliary needle unit 5 inside the shell 1, reducing the risk of interference between the sealing component 3 and the auxiliary needle unit 5 in the implantation movement, and ensuring that after the sealing component 3 contacts the seal, the auxiliary needle unit 5 can reliably perform the implantation movement.

[0048] It should be noted that the first direction is along the axial direction of the housing 1 toward the mating opening 11, and the second direction can be along the radial direction of the housing 1, or along a direction that does not pass through the axis of the housing 1, as long as it is perpendicular to the first direction. In other words, as shown in Figure 1, when the housing 1 is placed vertically, the first direction is the vertically downward direction, and the second direction only needs to be along the horizontal direction, which is not limited here. In addition, as long as the sealing component 3 abuts at least one of the housing 1 and the bottom shell 2, the mating opening 11 can be sealed. In other words, the sealing component 3 can abut the second end of the housing 1, or it can abut the bottom shell 2, or it can abut the housing 1 on one side and the bottom shell 2 on the other side.

[0049] It should also be noted that the present application does not limit the manner in which the sealing component 3 is unsealed. In a preferred embodiment, the sealing component 3 can be moved along the second direction to be removed from between the outer shell 1 and the bottom shell 2. At this time, the sealing component 3 is completely separated from the assembly formed by the outer shell 1 and the bottom shell 2, and the user can directly discard the removed sealing component 3. In other embodiments, the sealing component 3 may not be completely removed. For example, the user only needs to operate the sealing component 3 to move it a certain distance along the second direction to disengage it from the outer shell 1 and / or the bottom shell 2, and connect the mating port 11 and the implantation port 21, without having to completely remove the sealing component 3. At this time, the sealing component 3 still remains on the assembly formed by the outer shell 1 and the bottom shell 2, but it is not in contact with the outer shell 1 and the bottom shell 2, and it avoids the mating port 11 and the implantation port 21, so that the mating port 11 and the implantation port 21 are connected. In this way, the user does not have to dispose of the sealing component 3 separately, and can discard and recycle the entire assembly after the implantation is completed.

[0050] As a preferred embodiment of the present application, as shown in Figures 2, 7 to 9, a mounting channel 14 for at least partially accommodating the sealing component 3 is provided between the outer shell 1 and the bottom shell 2. The mounting channel 14 has a mounting opening 141 that penetrates the outer shell 1 and / or the bottom shell 2 along the second direction. The mounting opening 141 allows the sealing component 3 to enter and exit the mounting channel 14. When the sealing component 3 is installed before leaving the factory, at least a portion of the sealing component 3 is extended into the mounting channel 14 through the mounting opening 141, abutting against the outer shell 1 or the bottom shell 2 to seal the mating opening 11. Before use, the user removes the sealing component 3 laterally from the mounting opening 141, so that the mating opening 11 is connected to the implantation opening 21, and the in-body blood glucose monitoring device enters a state waiting for implantation.

[0051] This embodiment does not limit the formation method of the mounting opening 141. Preferably, as shown in Figures 2, 9, and 11, at least one of the second end of the housing 1 and the bottom shell 2 is provided with an avoidance groove, and the avoidance groove cooperates to form the mounting opening 141. In other words, the mounting opening 141 is formed by the cooperation of the housing 1 and the bottom shell 2. Of course, the mounting opening 141 can also be separately provided on the housing 1 or the bottom shell 2. Specifically, as shown in Figures 9 and 11, the outer wall of the housing 1 is provided with an outwardly protruding mating rib 16, which cooperates with the bottom shell 2 to form the mounting opening 141.

[0052] It should be noted that the user can remove the sealing assembly 3 through the installation opening 141. However, this application does not limit the installation method of the sealing assembly 3 before shipment. In one embodiment, the sealing assembly 3 is also installed through the installation opening 141. Before shipment, the assembler can first assemble the outer shell 1 and the bottom shell 2, and then insert the sealing assembly 3 into the installation channel 14 through the installation opening 141 in a direction opposite to the second direction, so that the sealing assembly 3 abuts against the outer shell 1 and / or the bottom shell 2 to form a seal.

[0053] In another embodiment, when assembling the outer shell 1 and the bottom shell 2 , the assembler simultaneously installs the sealing assembly 3 between the two and adjusts the positions of the outer shell 1 and the bottom shell 2 to clamp the sealing assembly 3 to form a seal.

[0054] Furthermore, as shown in Figures 1, 7, and 8, the sealing assembly 3 includes a sealing portion 31 and a gripping portion 32 extending from the sealing portion 31, and the gripping portion 32 protrudes to the outside of the installation opening 141. The sealing portion 31 is located inside the installation channel 14, and abuts against the outer shell 1 and / or the bottom shell 2 to seal the mating opening 11. The gripping portion 32 is located outside the installation opening 141 and serves as a handle for installing and removing the sealing assembly 3. The sealing portion 31 can be inserted into the installation channel 14 or removed from the installation channel 14 by grabbing the gripping portion 32. This makes it easier to grab and operate the sealing assembly 3, reduces the difficulty of operation, and the gripping portion 32 is exposed on the product's exterior surface, which can also provide a clear reminder to the user, guiding the user to remove the sealing assembly 3 in the correct direction and operation, making the operation simpler and clearer, and improving the user experience.

[0055] Preferably, as shown in Figures 8, 10 and 12, the appearance surface of the grip portion 32 is flush with the bottom shell 2 and / or the outer shell 1. On the one hand, this makes the overall appearance of the in-body blood glucose monitoring device more uniform and smooth, reducing the abruptness. On the other hand, it avoids the grip portion 32 protruding and causing the sealing component 3 to shift in position or fail to seal due to collision during transportation and storage.

[0056] In a preferred embodiment, as shown in Figures 1, 5 and 6, the sealing assembly 3 includes a connector 34 and a seal 33 fixed to the connector 34, and the seal 33 abuts against the housing 1 to seal the mating opening 11. The seal 33 is fixed to the connector 34, and the connector 34 serves as a carrier for the seal 33. The user can adjust the position of the seal 33 by operating the connector 34 so that the seal 33 abuts against the housing 1 or the bottom shell 2 to seal or loosen. Since the seal 33 is mostly made of elastic material, which is soft and easy to deform, it is difficult to operate the seal 33 directly. The connector 34 can limit the shape and position of the seal 33, and while facilitating operation, it can also limit the seal 33 so that the seal 33 maintains a preset posture, thereby forming a stable seal with the housing 1 or the bottom shell 2, and avoiding excessive deformation of the seal 33 and affecting the sealing effect. Specifically, as shown in Figures 5 and 6, the connector 34 includes a shielding portion 35 that shields the mating opening 11, and a mounting groove surrounding the outer periphery of the shielding portion 35. The seal 33 is disposed within the mounting groove, which acts as a position limiter for the seal 33, preventing it from shifting when squeezed. The connector 34 is also provided with a hook 341, which engages with the hook 341 to secure the seal 33 to the connector 34 and prevent it from falling off. Of course, the seal 33 can also be secured to the connector 34 by other means, such as gluing, screws, etc., which are not limited here.

[0057] As a preferred embodiment of the present application, as shown in Figures 1, 2, 7 to 9, the outer shell 1 and the bottom shell 2 can rotate relative to each other to have a first relative position and a second relative position. In the first relative position, the sealing component 3 seals the mating opening 11, and in the second relative position, the sealing component 3 releases the seal. When leaving the factory, after the assembler installs the sealing component 3 in place, the assembler adjusts the outer shell 1 and the bottom shell 2 to be in the first relative position so that the sealing component 3 seals the mating opening 11. Before use, the user rotates the bottom shell 2 and the outer shell 1 relative to each other through a rotation operation to switch to the second relative position. At this time, the sealing component 3 releases the seal, and the friction resistance between the sealing component 3 and the outer shell 1 or the bottom shell 2 is reduced. The user can easily remove the sealing component 3. At the same time, the rotation operation method is simpler and more convenient, and it is also more convenient to use.

[0058] Furthermore, in the first relative position, there is a first spacing between the outer shell 1 and the bottom shell 2, and in the second relative position, there is a second spacing between the outer shell 1 and the bottom shell 2, and the first spacing is smaller than the second spacing. The bottom shell 2 and the outer shell 1 can rotate relative to each other, so as to move toward each other to clamp the sealing component 3, or move in the opposite direction to loosen the sealing component 3. In the first relative position, the first spacing between the outer shell 1 and the bottom shell 2 is small, forming a clamping force on the sealing component 3. Under the action of the extrusion force, the sealing component 3 is tightly abutted against the outer shell 1 and / or the bottom shell 2 to form a stable seal. When the outer shell 1 and the bottom shell 2 rotate relative to each other to the second relative position, the second spacing between the two is larger, so that the clamping force of the outer shell 1 and the bottom shell 2 on the sealing component 3 is reduced, or the clamping of the sealing component 3 is lost. At this time, the user can easily remove the sealing component 3, and the friction resistance encountered during the removal process is also small, and the operation is more labor-saving.

[0059] Preferably, as shown in FIG8 , the sealing assembly 3 includes a sealing portion 31 clamped between the outer shell 1 and the bottom shell 2, wherein the thickness H2 of the sealing portion 31 is greater than or equal to the first spacing H1. The thickness H2 of the sealing portion 31 is greater than or equal to the first spacing H1, so that when the outer shell 1 and the bottom shell 2 are in the first relative position, the two can squeeze the sealing portion 31 on both sides of the sealing portion 31, ensuring the sealing effect of the sealing portion 31. In addition, a large frictional resistance is formed between the three, which limits the movement of the sealing assembly 3 and prevents the sealing assembly 3 from being mistakenly removed prematurely during transportation or storage, affecting the cleanliness of the interior of the outer shell 1 or even causing the product to be scrapped. Only when the user rotates the bottom shell 2 and the outer shell 1 to the second relative position, the squeezing force of the two on the sealing assembly 3 is reduced, and the sealing portion 31 can move in the second direction.

[0060] In a preferred embodiment, as shown in Figures 10 and 11, the outer shell 1 is provided with a fixing protrusion 18, and the bottom shell 2 is provided with a fixing groove 22. The fixing groove 22 has a locking position 221 and an unlocking position 222 spaced apart in the circumferential direction. In the first direction, there is a height difference between the locking position 221 and the unlocking position 222. The fixing protrusion 18 cooperates with the fixing groove 22 and can slide within the fixing groove 22 when the bottom shell 2 and the outer shell 1 rotate relative to each other, thereby providing a motion guide for the rotation of the bottom shell 2 and the outer shell 1, standardizing user operation so that the user can only rotate the bottom shell 2 and the outer shell 1 relative to each other, and cannot operate by pressing or other means. There is a height difference between the locking position 221 and the unlocking position 222 of the fixing groove 22, so that the relative rotation of the bottom shell 2 and the outer shell 1 can be converted into axial movement of the two by using the guidance of the fixing groove 22, so that when the bottom shell 2 and the outer shell 1 are relatively rotated to the locking position 221, the two can automatically move toward each other to clamp the sealing assembly 3, and when rotated to the unlocking position 222, the two move in opposite directions to loosen the sealing assembly 3.

[0061] In other embodiments, the fixing protrusion 18 may also be provided on the bottom shell 2 , and correspondingly, the fixing groove 22 may be provided on the outer shell 1 .

[0062] Preferably, as shown in Figures 10 and 11, one end of the bottom shell 2 is sleeved on the outside of the second end of the outer shell 1, and the fixing groove 22 is a through groove that passes through the side wall of the bottom shell 2, so that the user can see the position of the fixing protrusion 18 in the fixing groove 22 from the outside, thereby being able to directly know the status of the sealing assembly 3.

[0063] Furthermore, as shown in FIG11 , the fixing groove 22 also includes an extension section 223 disposed between the locking position 221 and the unlocking position 222. The extension section 223 has a guide surface that smoothly connects the locking position 221 and the unlocking position 222. The extension section 223 smoothly connects the unlocking position 222 and the locking position 221, making the switching of the fixing protrusion 18 between the locking position 221 and the unlocking position 222 smoother, reducing the frictional resistance between the fixing protrusion 18 and the inner wall of the fixing groove 22. This also reduces the sticking sensation caused by the fixing protrusion 18 moving relative to the fixing groove 22, making user operation more labor-saving. Specifically, as shown in FIG11 , the fixing protrusion 18 is configured as a cylinder, and the inner wall of the fixing groove 22 is provided with a contact arc surface at the unlocking position 222 and the locking position 221 that adapts to the outer surface of the fixing protrusion 18. The cylindrical fixing protrusion 18 can reduce friction with the wall of the fixing groove 22, making the fixing protrusion 18 move more smoothly within the fixing groove 22, saving user effort and reducing the feeling of sticking. The unlocking position 222 and the locking position 221 are provided with contact arc surfaces, which can better engage with the fixing protrusion 18 and restrict the fixing protrusion 18 to the unlocking position 222 or the locking position 221.

[0064] In other embodiments, the fixing protrusion 18 may have other shapes, and the shape of the contact surface may be adjusted according to the outer surface shape of the fixing protrusion 18 so that the two shapes are adapted to form an engagement. The contact arc surface may be provided on one side of the fixing groove 22, or on both sides of the groove wall, without limitation.

[0065] Furthermore, the bottom shell 2 is provided with a guide channel 23 that communicates with the fixing groove 22 and at least partially penetrates the bottom shell 2 in the first direction. The fixing protrusion 18 can enter the fixing groove 22 through the guide channel 23. The guide channel 23 allows the fixing protrusion 18 to enter or slide out of the fixing groove 22. When assembling the outer shell 1 and the bottom shell 2, the fixing protrusion 18 is first slid into the fixing groove 22 through the guide channel 23 along the first direction. The bottom shell 2 and the outer shell 1 are then rotated relative to each other to rotate the fixing protrusion 18 to the locking position 221.

[0066] In a preferred embodiment, as shown in Figures 1 and 8, a trigger unit 9 is provided at the first end, and a locking member 7 is further provided inside the housing 1. The locking member 7 is used to abut between the trigger unit 9 and the sealing assembly 3 to prevent the trigger unit 9 from moving in a direction close to the sealing assembly 3. The locking member 7 can form a movement limit for the trigger unit 9. The limit unit cannot move, so that the in-body blood glucose monitoring device cannot be triggered, and plays a role in preventing false triggering before the product is used. In addition, the locking member 7 abuts against the sealing assembly 3, so that the sealing assembly 3 forms a movement limit for the locking member 7. In other words, when the sealing assembly 3 is in a sealed state, the locking member 7 will abut against the trigger unit 9, so that the device cannot be triggered. Only when the user operates the sealing assembly 3 to move to a position that is out of seal, the sealing assembly 3 loses the restriction on the locking member 7, the locking member 7 moves, and thus loses the restriction on the trigger unit 9, at which time the trigger unit 9 can be triggered. By associating the sealing assembly 3 with the locking member 7, the device can be triggered only after the user removes the sealing assembly 3. This significantly reduces the probability of the device being accidentally triggered and scrapped due to collision or squeezing before use, thereby improving product reliability. Thus, the sealing assembly 3 of the present application not only performs a sealing function, but also cooperates with the locking member 7 to prevent the trigger unit 9 from accidentally triggering. This multi-purpose component simplifies the internal structure of the device and saves costs.

[0067] Specifically, as shown in Figures 1, 2, 8, and 9, the locking member 7 extends along a first direction and has an active end and a stop end. The active end is used to abut and cooperate with the sealing assembly 3, and the stop end is used to lock the trigger unit 9. The locking member 7 extends along the first direction so that one end is located at the first end and abuts the trigger unit 9, and the other end is located at the second end and abuts the sealing assembly 3. Under the abutting force of the sealing assembly 3 on the active end, the stop end is firmly abutted against the trigger unit 9, thereby preventing the trigger unit 9 from moving. When the sealing assembly 3 is removed, the active end loses its abutment, causing the locking member 7 to move in the first direction as a whole. The stop segment disengages from the abutment with the trigger unit 9, and the trigger unit 9 is no longer restricted, allowing it to be triggered and move in the first direction.

[0068] Specifically, as shown in Figures 1 and 2, a support member is further provided inside the housing 1. The support member and at least a portion of the trigger unit 9 cooperate to form a sliding groove 82 extending along the first direction. The stop end has a stop protrusion 71, which is located within the sliding groove 82. When the stop protrusion 71 is in the locked position, it abuts against the trigger unit 9. When the stop protrusion 71 moves along the first direction to the released position, it disengages from the trigger unit 9 and rests on the support member, forming a movement limit for the locking member 7 along the first direction and preventing the locking member 7 from slipping. Therefore, the length of the sliding groove 82 along the first direction is the movement stroke of the locking member 7.

[0069] Preferably, as shown in FIG1 , a limiting sleeve 8 is provided inside the housing 1, and the needle-assisting unit 5 is located in a limiting channel 81 inside the limiting sleeve 8, and the limiting sleeve 8 constitutes a support member. Specifically, as shown in FIG2 and FIG3 , the housing 1 is provided with the needle-assisting unit 5 for carrying the puncture unit 6 to move along a first direction to perform the implantation operation. The trigger unit 9 includes a trigger button 91 and a trigger rib 92. The trigger button 91 is fixed to the housing 1. The housing 1 is provided with an elastic claw 15 that cooperates with the needle-assisting unit 5 stopper. The elastic claw 15 surrounds the outside of the trigger rib 92. When the user presses the trigger button 91 in the first direction, the trigger rib 92 squeezes the elastic claw 15 to expand and deform or move outward, thereby loosening from the needle-assisting unit 5 and completing the release of the needle-assisting unit 5.

[0070] Furthermore, the trigger ribs 92 enclose a first accommodating channel, and a second accommodating channel is provided within the needle-assisting unit 5. The first accommodating channel houses a booster 12 for driving the needle-assisting unit 5 in a first direction, while the second accommodating channel houses a reset member 13 for driving the puncture unit 6 in a third direction opposite the first direction. The reset member 13 and the booster 12 are coaxially arranged. This confines the movement and deformation of the booster 12 and reset member 13 to the two channels, improving guidance of the movement of the booster 12 and reset member 13 and ensuring smooth movement of the puncture unit 6 with minimal shaking.

[0071] Preferably, both the booster 12 and the reset member 13 are springs. It should be noted that this application does not limit the driving method for the locking member 7 to move in the first direction after the sealing assembly 3 is removed. In one embodiment, during use, the housing 1 is placed vertically with the implant port 21 against the user's skin surface. When the sealing assembly 3 is removed, the locking member 7 loses its upward support and then falls in the first direction under the action of its own gravity, thereby unlocking the trigger unit 9.

[0072] In another embodiment, as shown in Figures 1 to 4 and Figures 8 to 9, a pushing member 74 is further provided in the housing 1, and the pushing member 74 is used to apply a thrust toward the first direction to the locking member 7. The pushing member 74 applies a force toward the first direction to the locking member 7, so that when the locking member 7 abuts against the sealing component 3, the pushing member 74 is in a force storage state. When the sealing component 3 loses its abutment against the locking member 7, the pushing member 74 is released, pushing the locking member 7 to move rapidly along the first direction, and losing the movement restriction on the trigger unit 9. In this way, after the sealing component 3 is taken out, the locking member 7 can react quickly and unlock the trigger unit 9. The responsiveness of the locking member 7 is improved, the user waiting time is reduced, and the duration of the entire implantation process is shortened, making the implantation process smoother and improving the user experience.

[0073] Furthermore, a pusher 74 is disposed between the inner wall of the housing 1 and the outer wall of the locking member 7. Specifically, as shown in Figures 8 and 9, the housing 1 has a placement groove 17 on the inner wall of the second end. The locking member 7 has an outer flange 72 on the end facing the implantation opening 21, forming a receiving space 73 for the pusher 74. One end of the pusher 74 abuts the top wall of the placement groove 17, and the other end abuts the outer flange 72. Preferably, the pusher 74 is a spring to save costs.

[0074] As a preferred embodiment of the present application, as shown in Figures 1 to 4, the in vivo blood glucose monitoring device also includes a needle-assisting unit 5 and a puncture unit 6 arranged inside the shell 1, and a trigger unit 9 is provided at the first end. The trigger unit 9 is triggered once, and the needle-assisting unit 5 drives the puncture unit 6 to move in a first direction to electrically connect the two electronic units and insert the sensor part into the host body.

[0075] After the user performs a trigger operation, the first electronic unit 41 can move along the first direction together with the needle-assisting unit 5 and the puncture unit 6. When the puncture unit 6 carries the sensor inside the first electronic unit 41 into the host body, the first electronic unit 41 and the second electronic unit 42 are electrically connected synchronously. In this way, a trigger operation is achieved, and the assembly of the in-body monitoring unit 4, the electrical connection between the first electronic unit 41 and the second electronic unit 42, and the implantation of the sensor are completed at the same time. This greatly simplifies the operating steps during the user's implantation process, reduces the difficulty of operating the product, and reduces the user's learning cost. At the same time, it also shortens the time of the entire implantation stage, which helps to reduce the user's fear while waiting for implantation. When using the in-body blood glucose monitoring device of the present application, the user only needs to perform a trigger operation once to simultaneously achieve the electrical connection between the first electronic unit 41 and the second electronic unit 42, as well as the implantation of the sensor, completing the entire implantation process and improving the user experience.

[0076] It should be noted that the present application does not limit the time sequence of the electrical connection between the first electronic unit 41 and the second electronic unit 42 and the insertion of the sensor portion into the host body. For example, during the process of the auxiliary needle unit 5, the puncture unit 6, and the first electronic unit 41 moving together in the first direction, the first electronic unit 41 and the second electronic unit 42 may be electrically connected first. At this time, the auxiliary needle unit 5 and the puncture unit 6 have not yet moved into place. As the movement continues, the puncture unit 6 is inserted into the host body and implanted. In other words, the electrical connection between the first electronic unit 41 and the second electronic unit 42 occurs before the puncture unit 6 is inserted into the host body. For another example, during the process of the auxiliary needle unit 5, the puncture unit 6, and the first electronic unit 41 moving together in the first direction, the puncture unit 64 is inserted into the host body first. At this time, the auxiliary needle unit 5 and the puncture unit 6 have not yet moved into place. As the movement continues, the first electronic unit 41 and the second electronic unit 42 are electrically connected. In other words, the insertion of the puncture unit 6 into the host body occurs before the electrical connection between the first electronic unit 41 and the second electronic unit 42. In addition, the above two steps can also occur simultaneously.

[0077] However, regardless of the situation in the above examples, the user only needs to perform a single trigger operation and does not need to perform additional operations. Therefore, the situations in the above examples are all within the scope of protection of this application.

[0078] Preferably, the in-vivo blood glucose monitoring device of the present application further includes a bottom cover detachably connected to the bottom shell 2, and the bottom cover covers the implantation port 21. When leaving the factory, the bottom cover, the outer shell 1, and the bottom shell 2 together form a sealed cavity. Before use, the user first removes the bottom cover from the bottom shell 2 to expose the implantation port 21, and then places the implantation port 21 against the skin surface to perform the implantation operation.

[0079] It should be noted that the present application does not limit the driving and limiting structure of the puncture unit 6 by the auxiliary needle unit 5. In a preferred embodiment, as shown in Figures 1 to 4, the in vivo blood glucose monitoring device also includes an auxiliary needle unit 5 and a puncture unit 6 arranged inside the shell 1. The auxiliary needle unit 5 includes at least two clamping parts 51. The clamping part 51 is located on the outside of the puncture unit 6 to limit the movement of the puncture unit 6 relative to the clamping part 51. A limiting sleeve 8 is also provided inside the shell 1. The limiting sleeve 8 has a limiting channel 81 extending along a first direction. The clamping part 51 is located in the limiting channel 81 and can move along the first direction in the limiting channel 81; when the clamping part 51 moves to a release position relative to the limiting channel 81, the clamping part 51 releases the puncture unit 6, so that the puncture unit 6 moves along a third direction relative to the clamping part 51, and the third direction is opposite to the first direction.

[0080] The clamping portion 51 restrains the puncture unit 6 within the limiting channel 81 by clamping and securing it. Abutted against the inner wall of the outer limiting channel 81, the clamping portion 51 tightly grips the puncture unit 6, maintaining the relative position of the puncture unit 6 and the auxiliary needle unit 5 unchanged. This clamping force not only enables the trigger unit 9 to drive the puncture unit 6 when the auxiliary needle unit 5 is triggered, carrying the puncture unit 6 with it in the first direction, but also firmly secures the puncture unit 6, limiting its position and preventing it from being released prematurely and withdrawing the needle, thereby ensuring a reliable and orderly implantation process. As the clamping portion 51 moves in the first direction, at least a portion of the clamping portion 51 slides out of the limiting channel 81, thereby losing the pressure from the inner wall of the limiting channel 81. The clamping force of the clamping portion 51 on the puncture unit 6 weakens, causing the puncture unit 6 to be released without the restraint of the auxiliary needle unit 5, and then move in the third direction to complete the needle withdrawal.

[0081] By clamping and releasing the puncture unit 6 from the outside through the clamping portion 51, the drive of the puncture unit 6 and the needle withdrawal movement are restricted and triggered, making the structural design of the needle-assisting unit 5 and the puncture unit 6 simpler, eliminating the need for complex stop structures on both. Furthermore, the position requirements for each component are reduced, and the processing and assembly precision requirements are reduced, thereby reducing production difficulty and improving production efficiency. Furthermore, when the puncture unit 6 moves along the first direction to insert the needle or along the third direction to withdraw the needle, there is no structure perpendicular to the first direction that interferes with its movement, thereby improving the stability and smoothness of the puncture unit 6 during movement, allowing the puncture unit 6 to move smoothly, and the switching process between inserting and withdrawing the needle is also more streamlined without any sticking sensation. Furthermore, the shaking caused by the movement of the puncture unit 6 is reduced, allowing the puncture unit 6 to move more smoothly along the axial direction of the housing 1, reducing the pain felt by the user during use.

[0082] Preferably, there are two clamping portions 51, arranged oppositely on either side of the puncture unit 6. The two clamping portions 51 can move inward together to clamp the puncture unit 6, and expand outward together to release the puncture unit 6. Of course, there can also be more than two clamping portions 51, evenly spaced along the circumference of the puncture unit 6, to enhance the deformability of the clamping portions 51 and provide a stable and uniform clamping force on the puncture unit 6. The limiting sleeve 8 is disposed outside the clamping portion 51.

[0083] It should be noted that this application does not limit the cross-sectional shape of the limiting sleeve 8. Preferably, the limiting sleeve 8 is cylindrical with a circular cross-section. It can also be other shapes, such as a rectangular, triangular, polygonal cross-section, etc., which is not limited here.

[0084] Preferably, as shown in Figure 3, the limiting sleeve 8 includes a clamping section 811 and a release section 812. In the first direction, the cross-sectional area of ​​the clamping section 811 is the same, and the cross-sectional area of ​​the release section 812 gradually increases. The clamping portion 51 includes an inclined section 512 and a fixed section 511. In the first direction, the cross-sectional area of ​​the fixed section 511 is the same, and the cross-sectional area of ​​the inclined section 512 gradually increases.

[0085] Specifically, as shown in FIG3 , the releasing section 812 is provided at one end of the clamping section 811 facing the second end, and the inclined section 512 is provided at one end of the fixing section 511 facing the first end.

[0086] As shown in Figures 2 and 3, in their initial positions, the clamping portion 51 and the puncture unit 6 are both located within the clamping section 811 of the limiting sleeve 8. The fixed section 511 of the clamping portion 51 is squeezed inward by the clamping section 811, tightly clamping the puncture unit 6. The clamping section 811 and the fixed section 511 have the same cross-sectional area along the first direction, thereby exerting a uniform squeezing force on the clamping portion 51, allowing it to more stably clamp the puncture unit 6. As the auxiliary needle unit 5, carrying the puncture unit 6, moves along the first direction to the release section 812, as shown in Figure 3, the position of the inclined section 512 corresponds to the release section 812. As shown in Figure 3, the cross-sectional area of ​​the release section 812 gradually increases, thereby forming a guide surface on the side facing the auxiliary needle unit 5. The cross-sectional area of ​​the inclined section 512 of the clamping portion 51 also gradually increases along the first direction, forming a mating surface. The guiding surface and the mating surface cooperate to guide the clamping portion 51 outward expansion, thereby releasing the puncture unit 6. The change in cross-sectional area of ​​release section 812 along the first direction can guide the outward expansion of clamping portion 51. Therefore, release section 812 is positioned at the end of limiting channel 81. This allows the puncture unit 6 to be released only when at least a portion of clamping portion 51 moves in the first direction to the end of limiting channel 81. Prior to this, clamping portion 51 firmly holds puncture unit 6. This ensures that the needle withdrawal action is triggered only when puncture unit 6 completes the insertion action, preventing premature release of puncture unit 6 and the subsequent triggering of the needle withdrawal action. This ensures that the entire implantation process proceeds smoothly and improves product reliability.

[0087] Preferably, the clamping portion 51 can be made of a material with a certain degree of elastic deformation, such as plastic. It can clamp the puncture unit 6 when squeezed by the inner wall of the limiting sleeve 8, and can also expand outward to release the puncture unit 6 when guided by the release section 812. The clamping portion 51 can also be made of a material with greater elasticity, such as silicone, to enable more rapid deformation and a larger deformation amplitude, thereby triggering the needle withdrawal action in a timely manner.

[0088] It should be noted that the deformation mentioned here refers to the deformation of the clamping portion 51 as a whole, which causes at least a portion of the clamping portion 51 to move away from the puncture unit 6. In other words, the clamping and release of the puncture unit 6 by the clamping portion 51 are achieved by movement, and the purpose of the deformation is to cause the clamping portion 51 to move. In other embodiments, the auxiliary needle unit 5 can also be provided with a stopper, which abuts against one end of the puncture unit 6 toward the first end to push the puncture unit 6 to move, and an unlocking structure is provided on the movement path of the stopper, so that after the auxiliary needle unit 5 moves to the release position, it is abutted by the unlocking structure and moves or deforms, loosening from the puncture unit 6 and releasing the puncture unit 6. This is not limited here.

[0089] It should be noted that the present application does not limit the fixed position of the first electronic unit 41. In a preferred embodiment, as shown in Figures 1 and 12, the first electronic unit 41 is fixed to the auxiliary needle unit 5. Furthermore, the first electronic unit 41 and the auxiliary needle unit 5 have an interference fit. The specific auxiliary needle unit 5 is provided with a plurality of elastic rib positions 52, which jointly clamp the first electronic unit 41. When the clamping portion 51 expands outward, the elastic rib positions 52 loosen the first electronic unit 41. Of course, the first electronic unit 41 can also be fixed to the auxiliary needle unit 5 by other means such as a snap connection. Alternatively, a fixing structure can also be provided on other components or the housing 1 to fix it to the first electronic unit 41, as long as the first electronic unit 41 can move along the first direction with the auxiliary needle unit 5.

[0090] In addition, the present application does not limit the fixing method of the second electronic unit 42 and the bottom shell 2 , and they can also be fixed by interference fit, snap connection, etc.

[0091] Preferably, the first electronic unit 41 and the second electronic unit 42 can be fixed along the first direction, so as to be assembled to form a complete in-body monitoring unit 4 during the implantation process.

[0092] As shown in Figures 1 to 4, the second electronic unit 42 is arranged at the implant port 21, and its adhesive layer is flush with the implant port 21. When the user places the implant port 21 against the skin surface, the adhesive layer adheres to the skin. As the first electronic unit 41 moves along the first direction, it is assembled with the second electronic unit 42. Under the driving force of the first electronic unit 41 along the first direction, the second electronic unit 42 is pressed toward the skin, firmly adhering the adhesive layer to the skin. As the outer shell 1 and the bottom shell 2 are removed, the second electronic unit 42 is separated from the bottom shell 2. Of course, the second electronic unit 42 can also be arranged at a certain distance from the implant port 21. When the first electronic unit 41 moves to the second electronic unit 42, the two are assembled and electrically connected. Then, under the push of the first electronic unit 41, the second electronic unit 42 is separated from the bottom shell 2. The in-body monitoring unit 4 continues to move along the first direction as a whole until the adhesive layer of the second electronic unit 42 is fixed to the host's skin.

[0093] In a preferred embodiment, the first electronic unit 41 also includes a battery, which is electrically connected to the second electronic unit 42. The battery's primary function is to power the signal processing module. Before the user triggers implantation, the first and second electronic units 41, 42 are separated, and therefore the battery is not electrically connected to the signal processing module. Only after the user triggers implantation does the battery establish an electrical connection with the signal processing module. This reduces battery energy loss before use and increases storage time.

[0094] The above description is only an embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. An in-body blood glucose monitoring device, characterized in that: include: A housing having a first end and a second end, wherein the second end is provided with a mating opening, and the first end and the second end are arranged opposite to each other along a first direction; a bottom shell connected to the second end and having an implantation port; An on-body monitoring unit, the on-body monitoring unit comprising a first electronic unit fixed inside the housing and a second electronic unit fixed to the bottom housing, the first electronic unit comprising a sensor, and the second electronic unit comprising a signal processing module; as well as A sealing component is abutted against the outer shell and / or the bottom shell and is located between the first electronic unit and the second electronic unit to seal the mating port; the sealing component can move along a second direction to release the seal on the mating port so that the mating port is connected to the implant port, and the second direction is perpendicular to the first direction.

2. The in-body blood glucose monitoring device according to claim 1, wherein: An installation channel for at least partially accommodating the sealing assembly is provided between the outer shell and the bottom shell. The installation channel has an installation opening that penetrates the outer shell and / or the bottom shell along the second direction.

3. The in-body blood glucose monitoring device according to claim 2, wherein: The sealing assembly includes a sealing portion and a holding portion extending from the sealing portion, and the holding portion protrudes out of the installation port.

4. The in-body blood glucose monitoring device according to claim 1, wherein: The sealing assembly includes a connecting member and a sealing member fixed to the connecting member, and the sealing member abuts against the housing to seal the fitting port.

5. The in-body blood glucose monitoring device according to claim 1, wherein: The outer shell and the bottom shell are capable of relative rotation to have a first relative position and a second relative position. In the first relative position, the sealing assembly seals the mating port, and in the second relative position, the sealing assembly releases the seal.

6. The in-body blood glucose monitoring device according to claim 5, characterized in that: In the first relative position, there is a first distance between the outer shell and the bottom shell. In the second relative position, there is a second distance between the outer shell and the bottom shell. The first distance is smaller than the second distance.

7. The in-body blood glucose monitoring device according to claim 6, characterized in that: The sealing assembly includes a sealing portion clamped between the outer shell and the bottom shell, and a thickness of the sealing portion is greater than or equal to the first distance.

8. The in-body blood glucose monitoring device according to claim 6, characterized in that: The outer shell is provided with a fixing protrusion, and the bottom shell is provided with a fixing groove. The fixing groove has a locking position and an unlocking position spaced apart in the circumferential direction. In the first direction, there is a height difference between the locking position and the unlocking position.

9. The in-body blood glucose monitoring device according to claim 8, characterized in that: The fixing groove further includes an extension section arranged between the locking position and the unlocking position, and the extension section has a guide surface that smoothly connects the locking position and the unlocking position.

10. The in-body blood glucose monitoring device according to claim 1, characterized in that: The first end is provided with a trigger unit, and the interior of the housing is further provided with a locking member, and the locking member is used to abut between the trigger unit and the sealing assembly to prevent the trigger unit from moving toward the sealing assembly.

11. The in-body blood glucose monitoring device according to claim 10, characterized in that: The locking member extends along the first direction to have an action end and a stop end, the action end is used to abut and cooperate with the sealing assembly, and the stop end is used to lock the trigger unit.

12. The in-body blood glucose monitoring device according to claim 10, wherein: A pushing member is further provided in the housing, and the pushing member is used to apply a pushing force toward the first direction to the locking member.

13. The in-body blood glucose monitoring device according to claim 1, wherein: The in-vivo blood glucose monitoring device also includes a needle-assisting unit and a puncture unit arranged inside the shell. The first end is provided with a trigger unit. When the trigger unit is triggered once, the needle-assisting unit drives the puncture unit to move along the first direction to electrically connect the two electronic units and insert the sensor part into the host body.

14. The in-body blood glucose monitoring device according to claim 1, wherein The in vivo blood glucose monitoring device also includes a needle-assisting unit and a puncture unit arranged inside the shell, the needle-assisting unit includes at least two clamping parts, the clamping parts are located on the outside of the puncture unit to limit the movement of the puncture unit relative to the clamping parts, and a limiting sleeve is also provided inside the shell, the limiting sleeve has a limiting channel extending along the first direction, the clamping part is located in the limiting channel and can move along the first direction in the limiting channel; when the clamping part moves to a release position relative to the limiting channel, the clamping part releases the puncture unit so that the puncture unit moves along a third direction relative to the clamping part, and the third direction is opposite to the first direction.

15. The in-body blood glucose monitoring device according to claim 14, characterized in that: The limiting sleeve includes a clamping section and a release section. In the first direction, the cross-sectional area of ​​the clamping section is the same, and the cross-sectional area of ​​the release section gradually increases. The clamping portion includes an inclined section and a fixed section. In the first direction, the cross-sectional area of ​​the fixed section is the same, and the cross-sectional area of ​​the inclined section gradually increases.

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