In-vivo blood glucose monitoring apparatus

Abstract

The present application relates to the technical field of medical equipment, and discloses an in-vivo blood glucose monitoring apparatus, comprising a housing, an in-vivo monitoring unit, a sealing film, and a piercing member. An accommodating cavity with a downward-facing cavity opening and an accommodating space located below the accommodating cavity are provided in the housing. The in-vivo monitoring unit comprises a sensor assembly disposed in the accommodating cavity and a transmitter assembly disposed in the accommodating space. The sealing film is disposed at the cavity opening of the accommodating cavity and used for sealing the accommodating cavity. The piercing member is disposed in the accommodating space. A piercing area and a clearance area are provided in a circumferential direction of the piercing member. The piercing member can move relative to the sealing film, enabling the piercing area to pierce the sealing film. Moreover, the pierced sealing film is stored in the accommodating cavity under the action of the clearance area. When the in-vivo blood glucose monitoring apparatus in the present application is used, the user only needs to operate the piercing member and the needle assistance unit, omitting the step of manually assembling the sensor assembly, simplifying the operation steps of the user, and thus improving the use experience of the user.

Description

An in-vivo blood glucose monitoring device

[0001] The present application claims priority to the Chinese patent application No. 202410456822.4, filed on April 16, 2024, and entitled "An in-vivo blood glucose monitoring device", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

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

[0003] The in-vivo blood glucose monitoring device needs to have a sensor penetrating into subcutaneous tissue, and through the bioenzyme on the sensor and the electrochemical reaction with the subcutaneous tissue, an electrical signal is converted into a blood glucose value and provided to the user. Since the product has a part penetrating into the subcutaneous tissue, the product needs to be sterilized before leaving the factory to avoid the risk of infection of the user caused by pathogenic bacteria on the product.

[0004] The in-vivo monitoring unit generally includes a sensor and a transmitter, which often need to be sterilized by different sterilization methods. For the transmitter part, a gas sterilization method is generally used, such as using ethylene oxide gas sterilization. Since the bioenzyme on the sensor will react with the gas such as ethylene oxide, the activity of the bioenzyme will be affected, and thus the monitoring accuracy will be affected. Therefore, the sensor cannot be sterilized by the gas sterilization method, and thus radiation sterilization is selected. However, radiation sterilization will damage the electronic devices in the transmitter assembly. Therefore, the sensor and the transmitter need to be sterilized separately.

[0005] At present, in order to avoid the recontamination of the sterilized sensor by pathogenic bacteria, the sensor and the transmitter are generally packaged separately, that is, the transmitter assembly is assembled in a needle helper, and the sensor is stored in a sterile packaging bag. When the user uses it, the sensor needs to be taken out of the sterile packaging bag first, then the protective cover of the needle helper is removed, the sensor is assembled in the transmitter, and then the needle helper is unlocked. Finally, the sensor is implanted into the subcutaneous tissue of the human body through the needle helper. This results in a complex operation procedure for the user, and thus affects the user experience.

[0006] SUMMARY

[0007] The present application provides an in-vivo blood glucose monitoring device to simplify the operation procedure of the user and thus improve the user experience.

[0008] The technical solution adopted by the present application is as follows:

[0009] An in-vivo blood glucose monitoring device, comprising:

[0010] A housing has a receiving cavity with a cavity opening downward and a receiving space below the receiving cavity;

[0011] A body monitoring unit includes a sensor assembly disposed in the receiving cavity and a transmitter assembly disposed in the receiving space;

[0012] A sealing film is disposed at the cavity opening of the receiving cavity and used to seal the receiving cavity;

[0013] A piercing member is disposed in the receiving space and has a piercing area and an avoiding area circumferentially disposed, the piercing member is movable relative to the sealing film, the piercing area is used to pierce the sealing film, and the pierced sealing film is received into the receiving cavity under the action of the avoiding area.

[0014] By using the above technical scheme, when the in-vivo blood glucose monitoring device is used, the user first operates the piercing member to move the piercing member relative to the sealing film, then the piercing area pierces the sealing film, and the avoiding area drives the pierced sealing film to be received into the receiving cavity, thereby completing the unsealing of the receiving cavity, and then triggering the needle assisting unit of the in-vivo blood glucose monitoring device to assemble the sensor assembly on the transmitter assembly under the action of the needle assisting unit, and at the same time, the sensor is pierced into the subcutaneous tissue to complete the assembly of the in-vivo blood glucose monitoring device on the human body.

[0015] Optionally, the piercing member includes a rotating sleeve and a piercing sleeve disposed inside the rotating sleeve, the rotating sleeve is provided with a driving portion, and the piercing sleeve is provided with a transmission portion matched with the driving portion, so that when the rotating sleeve rotates in a first direction, the piercing sleeve is driven to move upward to pierce the sealing film.

[0016] Optionally, the driving portion includes a driving surface, the driving surface is inclined and extends upward in a second direction opposite to the first direction, and the transmission portion is a transmission rib abutting against the driving surface.

[0017] Optionally, the bottom of the rotating sleeve is provided with a driving rib extending upward, the driving rib is located inside the rotating sleeve, and the top end surface of the driving rib forms the driving surface.

[0018] Optionally, the driving portion has a driving start end and a driving end in sequence in the second direction, and the driving end is provided with a limiting groove capable of accommodating the transmission portion.

[0019] Optionally, the housing includes an upper housing and a lower housing, the receiving cavity is formed in the upper housing, the receiving space is formed in the lower housing, the lower housing includes a stop portion used to abut against the piercing sleeve to prevent the piercing sleeve from rotating with the rotating sleeve in the first direction.

[0020] Optionally, the upper shell is provided with a connecting rib and a limiting protrusion arranged on the connecting rib, the rotating sleeve ring has an upwardly extending locking rib, the locking rib is in clamping connection with the connecting rib, and the limiting protrusion is used for preventing the rotating sleeve ring from rotating.

[0021] Optionally, a guide surface is arranged on a side of the limiting protrusion facing the side of the locking rib rotating in the first direction.

[0022] Optionally, a receiving bin is arranged in the cavity opening, and the receiving bin is arranged close to the avoiding area so that the punctured sealing film can be at least partially received into the receiving bin under the action of the avoiding area.

[0023] Optionally, the receiving cavity comprises a central cavity and an annular cavity surrounding the central cavity, and the receiving bin is arranged in the annular cavity.

[0024] Optionally, a positioning seat for mounting the transmitter assembly is arranged inside the puncturing piece, the positioning seat is provided with a limiting portion, and the puncturing piece is provided with a matching portion in sliding connection with the limiting portion in the vertical direction.

[0025] Optionally, the shell comprises an upper shell and a lower shell, the upper shell forms the receiving cavity inside, the lower shell forms the receiving space inside, and the lower shell comprises a supporting portion capable of extending into the receiving space to support the transmitter assembly.

[0026] Optionally, the shell comprises an upper shell and a lower shell, the upper shell forms the receiving cavity inside, the lower shell forms the receiving space inside, the upper shell is provided with a connecting rib and two stop ribs arranged on the connecting rib, and the lower shell has an upwardly extending clamping rib in clamping connection with the connecting rib, and the stop ribs are used for preventing the lower shell from rotating.

[0027] Optionally, a wall surface of the stop rib away from the upper shell is arranged flush with a wall surface of the connecting rib away from the upper shell, and a transition surface is arranged on a side of the stop rib close to the clamping rib.

[0028] Optionally, the puncturing area occupies 4 / 5 of the circumferential area of the puncturing piece, and the avoiding area occupies 1 / 5 of the circumferential area of the puncturing piece.

[0029] Thanks to the above technical solutions, the application has the following beneficial effects:

[0030] The in-vivo blood glucose monitoring device in the application comprises a shell, an in-vivo monitoring unit, a sealing film and a piercing piece, the shell has a containing cavity with a cavity opening downward and a containing space below the containing cavity, the in-vivo monitoring unit comprises a sensor assembly arranged in the containing cavity and a transmitter assembly arranged in the containing space, the sealing film is arranged at the cavity opening of the containing cavity and is used for sealing the containing cavity, and the piercing piece is arranged in the containing space, the piercing piece is circumferentially provided with a piercing area and an avoiding area, the piercing piece can move relative to the sealing film to make the piercing area pierce the sealing film, and the pierced sealing film is received into the containing cavity under the action of the avoiding area, thereby when the in-vivo blood glucose monitoring device in the application is used, only the user needs to operate the piercing piece and the needle unit, the step of manually assembling the sensor assembly is saved, the operation steps of the user are simplified, and the use experience of the user is improved. At the same time, the situation that the sensor assembly is polluted by pathogenic bacteria in the air after the user takes the sensor assembly out of the packaging bag is avoided, the risk of infection of the user is greatly reduced, and the use experience of the user is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0031] The drawings described herein are used to provide further understanding of the application, constitute a part of the application, the illustrative embodiments of the application and the description thereof are used to explain the application, and do not constitute improper limitation on the application. In the drawings:

[0032] Fig. 1 is a structural schematic view of the in-vivo blood glucose monitoring device in an embodiment of the application;

[0033] Fig. 2 is a sectional view of the in-vivo blood glucose monitoring device in an embodiment of the application;

[0034] Fig. 3 is an exploded schematic view of the in-vivo blood glucose monitoring device in an embodiment of the application;

[0035] Fig. 4 is an enlarged view of part A in Fig. 3;

[0036] Fig. 5 is a structural schematic view of the rotating collar in an embodiment of the application, wherein the first direction indicated by the dashed arrow in the figure is indicated;

[0037] Fig. 6 is a connection relationship schematic view of the rotating collar and the piercing collar in an embodiment of the application, wherein the first direction indicated by the dashed arrow in the figure is indicated;

[0038] Fig. 7 is a structural schematic view of the piercing collar in an embodiment of the application;

[0039] Fig. 8 is a structural schematic view of the lower shell in an embodiment of the application.

[0040] Label: 1, housing; 11, upper housing; 111, accommodating cavity; 112, connecting rib; 113, storage bin; 114, limiting protrusion; 115, guide surface; 116, stop rib; 117, transition surface; 12, lower housing; 121, accommodating space; 122, stop portion; 123, support portion; 124, clamping rib; 2, sensor assembly; 3, transmitter assembly; 4, sealing film; 5, piercing piece; 51, rotating sleeve; 511, driving portion; 512, limiting groove; 513, locking rib; 52, piercing sleeve; 521, piercing area; 522, avoidance area; 523, transmission portion; 524, protruding rib; 525, positioning seat; 526, limiting portion; 527, matching portion; 6, needle assisting unit. DETAILED DESCRIPTION

[0041] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail with reference to the accompanying drawings.

[0042] In the following description, a lot of specific details are set forth in order to facilitate a thorough understanding of the present application, but the present application can 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 can be combined with each other without conflict.

[0043] In addition, in the description of the present application, it should be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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 particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation of the present application.

[0044] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected, or it can be communicated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0045] In the present application, unless specifically stated and limited otherwise, a first feature is "on" or "under" a second feature can mean that the first and second features are in direct contact, or the first and second features are in indirect contact with an intermediate medium. In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples.

[0046] Referring to FIGS. 1-8, an in-vivo blood glucose monitoring device is disclosed, which comprises a housing 1, an in-vivo monitoring unit, a sealing film 4 and a piercing piece 5, wherein the housing 1 has a cavity 111 with a cavity opening downward and a receiving space 121 below the cavity 111; the in-vivo monitoring unit comprises a sensor assembly 2 arranged in the cavity 111 and a transmitter assembly 3 arranged in the receiving space 121; the sealing film 4 is arranged at the cavity opening of the cavity 111 and used to seal the cavity 111; the piercing piece 5 is arranged in the receiving space 121, the piercing piece 5 is circumferentially provided with a piercing area 521 and an avoiding area 522, the piercing piece 5 can move relative to the sealing film 4, so that the piercing area 521 pierces the sealing film 4, and the pierced sealing film 4 is driven by the avoiding area 522 and received into the cavity 111.

[0047] When a user uses the in-vivo blood glucose monitoring device in the present application, the user first operates the piercing piece 5 to move the piercing piece 5 relative to the sealing film 4, and then the piercing area 521 pierces the sealing film 4, and the avoiding area 522 drives the pierced sealing film 4 to be received into the cavity 111, thereby completing the unsealing of the cavity 111, and then triggering the needle assisting unit 6 of the in-vivo blood glucose monitoring device to assemble the sensor assembly 2 on the transmitter assembly 3 under the action of the needle assisting unit 6, and at the same time realize the sensor piercing into the subcutaneous tissue, so as to complete the assembly of the in-vivo blood glucose monitoring device on the human body.

[0048] In summary, when using the in-vivo blood glucose monitoring device in the present application, the user only needs to operate the piercing piece 5 and the needle assisting unit 6, which eliminates the need for manual assembly of the sensor assembly 2, thereby simplifying the user's operation steps and improving the user's experience. At the same time, it avoids the situation that the sensor assembly 2 is exposed to the air after being taken out of the packaging bag, which causes the sensor assembly 2 to be contaminated by pathogenic bacteria in the air, thereby greatly reducing the risk of infection of the user and further improving the user's experience.

[0049] The structure of the piercing member 5 is not specifically limited in the present application, and any one of the following embodiments can be adopted.

[0050] In the first embodiment, referring to FIGS. 2, 3, 5 and 7, the piercing member 5 comprises a rotating sleeve 51 and a piercing sleeve 52 inside the rotating sleeve 51, the rotating sleeve 51 is provided with a driving portion 511, and the piercing sleeve 52 is provided with a transmission portion 523 matched with the driving portion 511, so that when the rotating sleeve 51 rotates in the first direction, the piercing sleeve 52 can be driven to move upward to pierce the sealing film 4.

[0051] When the sealing film 4 is pierced, the rotating sleeve 51 is subjected to a rotating force in the first direction, so that the rotating sleeve 51 rotates relative to the housing 1, and the driving portion 511 is driven to move, and then the driving portion 511 moves relative to the transmission portion 523, so that the piercing sleeve 52 moves upward under the action of the transmission portion 523, so that the piercing area 521 pierces the sealing film 4, and the avoiding area 522 pushes the pierced sealing film 4 to make the pierced sealing film 4 be accommodated into the accommodating cavity 111, so as to complete the unsealing of the accommodating cavity 111. During the unsealing of the accommodating cavity 111, only the user needs to rotate the rotating sleeve 51, and then the operation difficulty and operation steps of the user are simplified, so that the user can quickly unseal the accommodating cavity 111, and the use experience of the user is further improved.

[0052] The structure of the driving portion 511 and the transmission portion 523 is not specifically limited in the present application, and preferably, referring to FIGS. 3, 5 and 7, the driving portion 511 comprises a driving surface, the driving surface extends upwardly and obliquely in the second direction opposite to the first direction, and the transmission portion 523 is a transmission rib abutting against the driving surface.

[0053] When the rotating sleeve 51 rotates in the first direction, the rotating sleeve 51 drives the driving surface to move, and the driving surface slides relative to the transmission rib. Since the driving surface extends upwardly and obliquely in the second direction opposite to the first direction, the piercing sleeve 52 moves upwardly under the action of the driving surface, so as to realize the upward movement of the piercing sleeve 52 when the rotating sleeve 51 rotates in the first direction, thereby simplifying the structural complexity of the in-vivo blood glucose monitoring device, and further reducing the production cost and improving the production efficiency of the in-vivo blood glucose monitoring device.

[0054] The application does not make specific limitations on the forming mode of the driving surface. Preferably, the bottom of the rotating sleeve 51 is provided with a driving rib extending upward, the driving rib is located in the interior of the rotating sleeve 51, and the top end surface of the driving rib forms the driving surface, so as to ensure the transmission effect between the driving surface and the transmission rib, thereby ensuring the efficiency of the user in piercing the sealing film 4, and further improving the user experience. In other embodiments, the inner wall of the rotating sleeve 51 is provided with a sliding groove, and the transmission rib extends into the sliding groove, so that the bottom side wall of the sliding groove forms the driving surface.

[0055] In other embodiments, the position of the driving surface and the transmission rib can also be exchanged, that is, the driving surface is arranged on the outer wall of the piercing sleeve 52, and the transmission rib is arranged on the inner wall of the rotating sleeve 51.

[0056] In a preferred embodiment, referring to FIGS. 3 and 5, the driving part 511 has a driving start end and a driving end in the second direction in turn, and the driving end is provided with a limiting groove 512 capable of accommodating the transmission part 523.

[0057] When the rotating sleeve 51 rotates in the first direction, the driving surface and the transmission rib slide relative to each other, so that the contact position of the driving surface and the transmission rib gradually changes from the driving start end to the driving end. When the driving end contacts the transmission rib, the transmission rib moves into the limiting groove 512, at which time the piercing of the sealing film 4 is completed, and the pierced sealing film 4 is pushed into the accommodating cavity 111. By arranging the limiting groove 512 at the driving end, the cooperation of the transmission rib and the limiting groove 512 can limit the rotation of the rotating sleeve 51, that is, after the piercing of the sealing film 4 is completed, the rotating sleeve 51 cannot continue to rotate, so as to remind the user that the accommodating cavity 111 has been unsealed, at which time the needle assisting unit 6 can be triggered, thereby further improving the user experience. At the same time, the cooperation of the transmission rib and the limiting groove 512 can also make the piercing sleeve 52 stay at the position of pushing the sealing film 4 into the accommodating cavity 111, so as to avoid the sealing film 4 from being separated from the accommodating cavity 111 due to its own toughness, which affects the assembly of the sensor assembly 2 to the emitter assembly 3, thereby ensuring that after the needle assisting unit 6 is triggered, the sensor assembly 2 can be assembled to the emitter assembly 3, so as to improve the product quality of the in vivo blood glucose monitoring device.

[0058] In a preferred embodiment, referring to FIGS. 1, 2, 3 and 6, the shell 1 includes an upper shell 11 and a lower shell 12, the interior of the upper shell 11 forms an accommodating cavity 111, the interior of the lower shell 12 forms an accommodating space 121, the lower shell 12 includes a stopper 122 for abutting against the piercing sleeve 52, so as to prevent the piercing sleeve 52 from rotating with the rotating sleeve 51 in the first direction.

[0059] Specifically, the bottom end port of the lower shell 12 forms a cavity opening of the accommodation cavity 111, so as to facilitate the installation of the sealing film 4, and increase the connection area between the sealing film 4 and the cavity opening of the accommodation cavity 111, so as to ensure the sealing effect of the sealing film 4 on the accommodation cavity 111.

[0060] When the rotating sleeve 51 rotates in the first direction, the rotating sleeve 51 drives the driving surface to move, and since the stop portion 122 abuts against the piercing sleeve 52, the stop portion 122 limits the rotation of the piercing sleeve 52 in the first direction, so that the driving surface slides relative to the transmission rib, and the piercing sleeve 52 moves upward under the action of the rotating sleeve 51, so as to ensure the piercing efficiency of the sealing film 4, thereby shortening the time required by the user to pierce the sealing film 4 and reducing the piercing difficulty, thereby improving the user experience.

[0061] The application does not make specific limitations on the abutting mode of the stop portion 122 and the piercing sleeve 52. Preferably, referring to FIGS. 1, 2, 3 and 6, the stop portion 122 is a columnar structure extending upward from the lower shell 12, the inner wall of the piercing sleeve 52 is provided with a convex rib 524, and after the assembly of the blood glucose monitoring device is completed, the stop portion 122 abuts against the side of the convex rib 524 facing the second direction, so that when the rotating sleeve 51 rotates in the first direction, the stop portion 122 limits the convex rib 524 to avoid the piercing sleeve 52 rotating in the first direction with the rotating sleeve 51. In other embodiments, the stop portion 122 is also a columnar structure extending upward from the lower shell 12, and the piercing sleeve 52 is provided with a hole for the columnar structure to extend into, so that the stop portion 122 and the hole wall of the hole abut to limit the piercing sleeve 52.

[0062] Further, referring to FIGS. 2 and 3, the upper shell 11 is provided with a connecting rib 112 and a limiting protrusion 114 arranged on the connecting rib 112, and the rotating sleeve 51 has a locking rib 513 extending upward, the locking rib 513 is in clamping connection with the connecting rib 112, and the limiting protrusion 114 is used to prevent the rotating sleeve 51 from rotating.

[0063] Due to the locking rib 513 and the connecting rib 112, the rotating ring 51 is connected to the upper shell 11, and the rotating ring 51 can rotate relative to the upper shell 11, thereby increasing the stability of the connection between the rotating ring 51 and the upper shell 11. Due to the presence of the limiting protrusion 114, when the user starts to rotate the rotating ring 51, a large rotating force needs to be applied to the rotating ring 51. When the locking rib 513 passes the limiting protrusion 114, the rotating force applied to the rotating ring 51 is reduced, thereby increasing the rotating force required to pierce the sealing film 4, avoiding the situation that the sealing film 4 is pierced due to vibration during transportation or handling of the in-vivo blood glucose monitoring device, thereby improving the product quality of the in-vivo blood glucose monitoring device, avoiding the situation that the sealing film 4 is pierced due to user's misoperation, and further improving the user's experience.

[0064] Referring to FIG. 3, preferably, the limiting protrusion 114 is provided with a guide surface 115 on the side facing the first direction of rotation of the locking rib 513, so as to reduce the force required when the user starts to rotate the rotating ring 51 in the first direction, thereby reducing the difficulty of the user to pierce the sealing film 4, and further improving the user's experience.

[0065] In the second embodiment, the piercing member 5 includes a piercing ring 52 which is in sliding cooperation with the shell 1, and the piercing area 521 and the avoiding area 522 are arranged on the top of the piercing ring 52. The bottom view of the piercing ring 52 is the inside of the shell 1, that is, the design of the rotating ring 51 in the first embodiment is cancelled, and the piercing of the sealing film 4 is realized only by the relative sliding of the piercing ring 52 and the shell 1, so as to reduce the components required by the in-vivo blood glucose monitoring device, and further reduce the production cost of the in-vivo blood glucose monitoring device.

[0066] In a preferred embodiment, the shell 1 is provided with a positioning part, and the circumferential wall of the piercing ring 52 is provided with a groove. The positioning part extends into the groove to limit the piercing ring 52, thereby avoiding the situation that the piercing ring 52 and the shell 1 slide relative to each other due to vibration during transportation or handling of the in-vivo blood glucose monitoring device, so as to ensure the product quality of the in-vivo blood glucose monitoring device. When the sealing film 4 is pierced, the piercing ring 52 is pressed upward or the shell 1 is pressed downward, so that the positioning part is separated from the groove, thereby releasing the limitation of the positioning part on the piercing ring 52, so that the piercing ring 52 and the shell 1 slide relative to each other and pierce the sealing film 4.

[0067] In a preferred embodiment, referring to FIG. 2, a receiving bin 113 is arranged at the cavity opening of the accommodating cavity 111, and the receiving bin 113 is arranged close to the avoiding area 522, so that the punctured sealing film 4 can be at least partially received into the receiving bin 113 under the action of the avoiding area 522.

[0068] When the puncture ring 52 moves upward under the action of the rotating ring 51 to puncture the sealing film 4 in the puncture area 521, the punctured sealing film 4 moves to the receiving bin 113 under the pushing action of the avoiding area 522, so that the sealing film 4 avoids the cavity opening of the accommodating cavity 111, to avoid the interference between the sealing film 4 and the sensor assembly 2 after being pushed, to ensure that the sensor assembly 2 can be assembled to the transmitter assembly 3, thereby improving the product quality of the on-body blood glucose monitoring device, and further improving the user experience.

[0069] Preferably, the accommodating cavity 111 includes a central cavity and an annular cavity arranged around the central cavity, and the receiving bin 113 is arranged in the annular cavity, to increase the stability of the receiving bin 113, thereby ensuring the stability of the sealing film 4 pushed into the receiving bin 113.

[0070] In a preferred embodiment, referring to FIG. 2, FIG. 3, FIG. 6 and FIG. 7, the puncture piece 5 is internally provided with a positioning seat 525 for mounting the transmitter assembly 3, and the positioning seat 525 is provided with a limiting portion 526, and the puncture piece 5 is provided with a matching portion 527 which is in sliding cooperation with the limiting portion 526 in the vertical direction.

[0071] When the rotating ring 51 rotates in the first direction, the puncture ring 52 separates the lower housing 12 from the upper housing 11 after puncturing the sealing film 4, and triggers the needle assisting unit 6, and then the sensor assembly 2 moves downward under the action of the needle assisting unit 6 and is assembled to the transmitter assembly 3, and at the same time, the limiting portion 526 is driven to move by the positioning seat 525 under the action of the needle assisting unit 6, so that the limiting portion 526 and the matching portion 527 slide relative to each other, and finally the sensor assembly 2 is at least partially inserted into the subcutaneous tissue, to complete the installation of the on-body blood glucose monitoring device, and in this process, the transmitter assembly 3 is prevented from being separated from the upper housing 11 after the lower housing 12 is removed, to facilitate the assembly of the sensor assembly 2 and the transmitter assembly 3; at the same time, the limiting portion 526 and the matching portion 527 are in sliding cooperation, to prevent the puncture ring 52 from rising after being driven by the rotating ring 51, which causes the on-body monitoring unit to be unable to be assembled to the human body, to ensure that the sensor assembly 2 is assembled to the transmitter assembly 3 while the on-body monitoring unit is assembled to the human body.

[0072] The structure of the limiting portion 526 and the matching portion 527 is not limited in the application. Preferably, referring to FIG. 7, the limiting portion 526 is a plate-shaped structure extending outward from the positioning seat 525, the matching portion 527 is a strip-shaped structure extending in the vertical direction, and the plate-shaped structure is provided with a matching groove in sliding cooperation with the strip-shaped structure, so as to realize the relative sliding purpose of the positioning seat 525 and the piercing sleeve ring 52. In other embodiments, the limiting portion 526 can also be a groove-shaped structure extending in the vertical direction, and the matching portion 527 is a rod-shaped structure extending outward from the piercing sleeve ring 52 and extending into the groove-shaped structure.

[0073] In a preferred embodiment, referring to FIGS. 2 and 8, the shell 1 includes an upper shell 11 and a lower shell 12, the upper shell 11 is internally formed with a receiving cavity 111, the lower shell 12 is internally formed with a receiving space 121, and the lower shell 12 includes a support portion 123 capable of extending into the receiving space 121 to support the emitter assembly 3.

[0074] It can be understood that the lower shell 12 includes a body and a support portion 123 provided on the body and capable of extending into the receiving space 121, so that the support portion 123 supports the emitter assembly 3 to stay at a set position, thereby avoiding the case that the positioning seat 525 moves downward relative to the lower shell 12 due to the rotation of the rotating sleeve ring 51, and thereby increasing the stability of the emitter assembly 3.

[0075] The structure of the support portion 123 is not limited in the application. Preferably, the support portion 123 is a columnar structure provided on the body, so as to reduce the material of the lower shell 12 and thereby reduce the production cost of the on-body blood glucose monitoring device. In other embodiments, the support portion 123 can also be a block-shaped structure provided on the body or other structures capable of supporting the emitter assembly 3.

[0076] In a preferred embodiment, referring to FIGS. 1 to 4, the shell 1 includes an upper shell 11 and a lower shell 12, the upper shell 11 is internally formed with a receiving cavity 111, the lower shell 12 is internally formed with a receiving space 121, the upper shell 11 is provided with a connecting rib 112 and two stop ribs 116 provided on the connecting rib 112, and the lower shell 12 has a clamping rib 124 extending upward, the clamping rib 124 is clamped and matched with the connecting rib 112, and the stop rib 116 is used to prevent the lower shell 12 from rotating.

[0077] It can be understood that the clamping rib 124 is provided with a plurality of clamping ribs 124 along the circumference of the lower shell 12, and the plurality of clamping ribs 124 and the lower shell 12 jointly form the receiving space 121.

[0078] Specifically, after the upper shell 11 and the upper shell 11 are assembled together, the two stop ribs 116 are located on the opposite sides of the clamping rib 124 and abut against the clamping rib 124, so that the clamping rib 124 is in stop cooperation with the stop rib 116, to prevent the lower shell 12 from rotating with the rotating ring 51, to ensure the limiting effect of the lower shell 12 on the piercing ring 52, thereby ensuring the piercing efficiency of the user on the sealing film 4 and reducing the piercing difficulty, and further improving the user experience. At the same time, the clamping rib 124 is in clamping cooperation with the connecting rib 112, so that the lower shell 12 is detachably connected to the upper shell 11, thereby increasing the connection stability of the lower shell 12 and the upper shell 11.

[0079] Referring to FIG. 4, preferably, the wall surface of the stop rib 116 away from the upper shell 11 is flush with the wall surface of the connecting rib 112 away from the upper shell 11, and the side of the stop rib 116 close to the clamping rib 124 is obliquely provided with a transition surface 117, so that when the user disassembles the lower shell 12, the clamping end of the clamping rib 124 is moved to the wall surface of the stop rib 116 away from the upper shell 11 under the action of the transition surface 117, and then the lower shell 12 is pulled downward, thereby reducing the force required by the user when disassembling the lower shell 12, and further improving the user experience.

[0080] The application does not make specific limitations on the material of the sealing film 4. Preferably, the sealing film 4 is a diaphragm structure made of aluminum material to ensure the sealing effect of the accommodation cavity 111. In other embodiments, the sealing film 4 can also be a diaphragm structure made of plastic or other materials with sealing properties.

[0081] The application does not make specific limitations on the proportion of the piercing area 521 and the avoidance area 522 occupying the circumference of the piercing piece 5. Preferably, referring to FIG. 7, the piercing area 521 occupies 4 / 5 of the circumferential area of the piercing piece 5, and the avoidance area 522 occupies 1 / 5 of the circumferential area of the piercing piece 5, to realize the unsealing of the accommodation cavity 111 while ensuring that the pierced sealing film 4 can be pushed into the accommodation cavity 111 under the action of the avoidance area 522. In other embodiments, the piercing area 521 and the avoidance area 522 can each occupy other proportions of the circumferential area of the piercing piece 5, as long as they can pierce the sealing film 4 and the pierced sealing film 4 can be pushed into the accommodation cavity 111 by the avoidance area 522.

[0082] The application does not make specific limitations on the formation method of the piercing area 521. Preferably, referring to FIG. 7, the piercing area 521 is formed by the tooth-shaped structure extending upward from the piercing piece 5, to ensure the piercing effect on the sealing film 4. In other embodiments, the piercing area 521 can also be formed by an arc-shaped blade provided on the piercing piece 5.

[0083] In a preferred embodiment, referring to FIG. 2, the housing 1 comprises an upper housing 11 and a lower housing 12, the upper housing 11 is internally formed with a receiving cavity 111, the lower housing 12 is internally formed with a receiving space 121, the needle-assisting unit 6 capable of being triggered by the user is arranged in the receiving cavity 111, and the sensor assembly 2 is arranged at the bottom of the needle-assisting unit 6, so that after the sealed film 4 is pierced and accommodated in the receiving cavity 111 and the needle-assisting unit 6 is triggered, the sensor assembly 2 can move downward under the pushing action of the needle-assisting unit 6 and be assembled with the transmitter assembly 3 while being pierced into the subcutaneous tissue, so as to simplify the steps of the user using the on-body monitoring unit and improve the user experience.

[0084] The places not described in the present application can be realized by using or referring to the existing technology.

[0085] Each of the embodiments in the present specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment mainly explains the difference from other embodiments.

[0086] The above only describes the embodiments of the present application and is not used to limit the present application. The present application can have various changes and modifications for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the scope of claims of the present application.

Claims

1. An on-body blood glucose monitoring device, characterized by, The application relates to a wearable in-vivo monitoring device, which comprises: a housing (1) having a cavity (111) with a cavity opening downward and a receiving space (121) below the cavity (111); an in-vivo monitoring unit comprising a sensor assembly (2) arranged in the cavity (111) and a transmitter assembly (3) arranged in the receiving space (121); a sealing film (4) arranged at the cavity opening of the cavity (111) and used for sealing the cavity (111); a piercing member (5) arranged in the receiving space (121), the piercing member (5) being circumferentially provided with a piercing area (521) and an avoiding area (522), the piercing member (5) being movable relative to the sealing film (4) so that the piercing area (521) pierces the sealing film (4), and the pierced sealing film (4) is received into the cavity (111) under the action of the avoiding area (522).

2. The in vivo blood glucose monitoring device of claim 1, wherein, The piercing member (5) comprises a rotating sleeve (51) and a piercing sleeve (52) arranged inside the rotating sleeve (51), the rotating sleeve (51) is provided with a driving portion (511), and the piercing sleeve (52) is provided with a transmission portion (523) matched with the driving portion (511), so that when the rotating sleeve (51) rotates in a first direction, the piercing sleeve (52) can be driven to move upward to pierce the sealing film (4).

3. The in vivo blood glucose monitoring device of claim 2, wherein, The driving portion (511) comprises a driving surface, the driving surface is arranged to extend upwardly and obliquely in a second direction opposite to the first direction, and the transmission portion (523) is a transmission rib abutting against the driving surface.

4. The in vivo blood glucose monitoring device of claim 3, wherein, The bottom of the rotating sleeve (51) is arranged to extend upwardly and is provided with a driving rib, the driving rib is arranged inside the rotating sleeve (51), and the top end surface of the driving rib forms the driving surface.

5. The in vivo blood glucose monitoring device of claim 2, wherein, The driving portion (511) has a driving start end and a driving end in sequence in the second direction, and the driving end is provided with a limiting groove (512) capable of accommodating the transmission portion (523).

6. The in vivo blood glucose monitoring device of claim 2, wherein, The housing (1) comprises an upper housing (11) and a lower housing (12), the cavity (111) is formed in the upper housing (11), the receiving space (121) is formed in the lower housing (12), the lower housing (12) comprises a stop portion (122) used for abutting against the piercing sleeve (52) to prevent the piercing sleeve (52) from rotating with the rotating sleeve (51) in the first direction.

7. The in vivo blood glucose monitoring device of claim 6, wherein, The upper housing (11) is provided with a connecting rib (112) and a limiting protrusion (114) arranged on the connecting rib (112), the rotating sleeve (51) has an upwardly extending locking rib (513), the locking rib (513) is in clamping cooperation with the connecting rib (112), and the limiting protrusion (114) is used for preventing the rotating sleeve (51) from rotating.

8. The in vivo blood glucose monitoring device of claim 7, wherein, The limiting protrusion (114) is provided with a guide surface (115) facing the side of the locking rib (513) rotating in the first direction.

9. The in vivo blood glucose monitoring device of claim 1, wherein, A receiving bin (113) is arranged at the cavity opening of the accommodation cavity (111), and the receiving bin (113) is arranged close to the avoiding area (522) so that the at least partially broken sealing film (4) can be received into the receiving bin (113) under the action of the avoiding area (522).

10. The in vivo blood glucose monitoring device of claim 9, wherein, The accommodation cavity (111) comprises a center cavity and an annular cavity surrounding the center cavity, and the receiving bin (113) is arranged in the annular cavity.

11. The in vivo blood glucose monitoring device of claim 1, wherein, The inside of the piercing member (5) is provided with a positioning seat (525) for mounting the emitter assembly (3), and the positioning seat (525) is provided with a limiting portion (526), and the piercing member (5) is provided with a matching portion (527) which is in sliding fit with the limiting portion (526) in the vertical direction.

12. The online blood glucose monitoring device of claim 1, wherein, The shell (1) comprises an upper shell (11) and a lower shell (12), the inside of the upper shell (11) forms the accommodation cavity (111), the inside of the lower shell (12) forms the accommodation space (121), and the lower shell (12) comprises a supporting portion (123) which can extend into the accommodation space (121) to support the emitter assembly (3).

13. The online blood glucose monitoring device of claim 1, wherein, The shell (1) comprises an upper shell (11) and a lower shell (12), the inside of the upper shell (11) forms the accommodation cavity (111), the inside of the lower shell (12) forms the accommodation space (121), the upper shell (11) is provided with a connecting rib (112) and two stop ribs (116) arranged on the connecting rib (112), the lower shell (12) has a clamping rib (124) extending upward, the clamping rib (124) is in clamping fit with the connecting rib (112), and the stop ribs (116) are used for preventing the lower shell (12) from rotating.

14. The online blood glucose monitoring device of claim 13, wherein, The wall surface of the stop rib (116) away from the upper shell (11) is flush with the wall surface of the connecting rib (112) away from the upper shell (11), and the side of the stop rib (116) close to the clamping rib (124) is obliquely provided with a transition surface (117).

15. The online blood glucose monitoring device of claim 1, wherein, The piercing area (521) occupies 4 / 5 of the circumferential area of the piercing member (5), and the avoiding area (522) occupies 1 / 5 of the circumferential area of the piercing member (5).

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