A dynamic blood glucose meter and insertion module for repeatedly launching an implant needle

Abstract

The utility model relates to the technical field of invasive continuous blood glucose monitoring device, concretely is a kind of dynamic blood glucose meter and placement module of repeatable emission implant needle, including repeatable emission device and placement module: placement module includes placement base and placement top cover, placement base lower surface is equipped with adhesive tape, and the PET soft needle that projects downward is equipped in the center position of placement base, placement top cover is sleeved on the upper of placement base, and a pair of edge clamping heads are equipped in the top of placement top cover, steel needle is slidably installed at the center of placement top cover, and a center clamping head is equipped in the top of steel needle, and steel needle is the structure of central control, and PET soft needle is arranged in the inside of steel needle;Repeatable emission device includes shell, shell seat, shell cover and upper chamber base.The utility model has realized the efficient reuse of dynamic blood glucose meter emission mechanism, greatly reduced dynamic blood glucose monitoring cost, while guarantee the installation, reliability and convenience of sensor implantation.

Description

Technical Field

[0001] This utility model relates to the technical field of invasive continuous blood glucose monitoring devices, specifically a dynamic blood glucose meter and implantation module that can repeatedly emit implanted needles. Background Technology

[0002] Existing continuous glucose monitoring (CGM) systems typically consist of a subcutaneously implanted glucose monitoring sensor and an external transmitter. The transmitter is responsible for collecting the electrochemical signals from the sensor and transmitting the data wirelessly (such as via Bluetooth) to a receiving device (such as a smartphone or a dedicated display) so that diabetic patients can monitor their blood glucose levels in real time.

[0003] However, most continuous glucose monitoring (CGM) devices on the market currently use a disposable transmitter design. Once the sensor is inserted subcutaneously, the transmitter is locked after use and must be discarded. Existing glucose monitoring sensors typically have a lifespan of 7-14 days. Due to the non-reusable transmitter, patients need to use a new transmitter for each cycle, resulting in high long-term costs, especially placing a significant financial burden on diabetic patients requiring long-term blood glucose monitoring. Although some manufacturers have attempted to alleviate these problems by reducing the cost of the transmitter, the fundamental flaws of the disposable design remain unresolved.

[0004] Therefore, there is an urgent need for a dynamic blood glucose meter with a re-emitting implantable needle to provide an effective solution to the shortcomings of existing technologies. Utility Model Content

[0005] The purpose of this invention is to provide a dynamic blood glucose meter and implantation module with a reusable implantable needle to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A dynamic blood glucose meter with a re-emitting implantable needle includes a re-emitting device and an insertion module: the insertion module includes an insertion base and an insertion top cover. The lower surface of the insertion base is covered with adhesive tape. A downwardly extending PET soft needle is located at the center of the insertion base. The insertion top cover is fitted over the insertion base and has a pair of edge clips at its top. A steel needle is slidably installed at the center of the insertion top cover, and a central clip is located at the top of the steel needle. The steel needle has a central control structure, and the PET soft needle passes through its interior. The re-emitting device includes a housing, a housing base, a housing cover, and an upper chamber base. A lifting pusher and a central tube are slidably installed inside the housing. The bottom of the lifting pusher engages with the edge clips. A pair of downwardly extending steel needle clips are located at the center of the central tube, and these clips engage with the central clips. The lifting pusher and... A launching spring is provided between the shell and the cover. A pair of claws extending into the shell are provided on the edge of the shell and the ends of the claws protrude outwards and engage with the buckle holes on the lifting push base. A pair of launching buttons for squeezing the claws are installed on the upper part of the outer wall of the shell. The upper end of the central tube has an outer edge, and a needle-pulling spring is provided between the outer edge and the lifting push base. A needle-pulling trigger mechanism is provided inside the lifting push base. The needle-pulling trigger mechanism includes a pair of L-shaped latches that slide laterally back and forth. The pair of L-shaped latches are arranged in a mirror symmetrical manner and a latch spring is provided between them. The locking protrusion at the top of the L-shaped latch engages with the locking hole at the lower end of the central tube. The sliding rod at the bottom of the L-shaped latch extends from the bottom of the lifting push base. A pair of upwardly extending push rods are provided on the shell base. The upper end of the push rod and the end of the sliding rod are engaged through a bevel. The upper chamber base is used to push the lifting push base up and down to reset.

[0007] Furthermore, the lifting push seat is also equipped with a release mechanism, which includes a pair of horizontally sliding "["-shaped release rods. The two release rods are arranged in opposite directions and staggered, with a release spring between their staggered ends. The release rods are equipped with a locking platform and a clamping slot. Under the action of the release spring, the locking platform of one release rod cooperates with the end of the release rod on the opposite side to clamp the edge locking head. A pair of steel needle clamps are staggered front and back, and the edge of the end of the steel needle clamp on the same side is inserted into the clamping slot of the release rod on the same side. A pair of release buttons for squeezing the release rods are installed in the lower middle part of the outer wall of the housing.

[0008] Furthermore, the center tube has an upwardly extending ejector cylinder, and an ejector pin is slidably installed inside the ejector cylinder. An ejector pin spring is provided between the top of the ejector pin and the top cover of the center tube. After the release mechanism is triggered, the ejector pin presses against the center clamp.

[0009] Furthermore, a limiting hole is provided on the front and rear side walls of the insertion base, and an elastic limiting protrusion is provided on the front and rear side walls of the insertion top cover. The elastic limiting protrusion engages with the limiting hole. The bottom of the elastic limiting protrusion is provided with an outwardly extending tail wing. The tail wing is located above the top rod. After the tail wing contacts the top rod, it flips outward and drives the elastic limiting protrusion to disengage from the limiting hole.

[0010] An insertion module includes an insertion base, which is a split structure. The insertion base is snap-fitted into a Bluetooth module, and the insertion base and the Bluetooth module are electrically connected through gold-plated contacts on the contact surface.

[0011] Furthermore, an insertion module is provided, wherein a button battery is embedded in the insertion base.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention significantly reduces the financial burden on patients by using a reusable, repeatable firing device, requiring only the replacement of the implantation module. The steel needle-guided PET soft needle puncture method ensures implantation accuracy. A needle withdrawal trigger mechanism ensures precise needle extraction upon completion of firing, preventing injury to the body. A release mechanism facilitates the smooth release of the implantation cap and steel needle, simplifying the replacement process. This invention achieves efficient reuse of the continuous glucose meter firing mechanism, significantly reducing the cost of continuous glucose monitoring while ensuring the installability, reliability, and convenience of sensor implantation.

[0013] In order to prevent the steel needle from getting stuck, this invention uses a spring to push the ejector pin to continuously push the center clamp during the release process, thus assisting in the release of the steel needle and preventing jamming.

[0014] The insertion base in this invention adopts a split structure, which can be quickly installed or removed from the Bluetooth module via a snap-fit ​​mechanism. When the insertion module is replaced, the Bluetooth module can be detached and reused, requiring only the insertion base to be replaced, further reducing the cost of dynamic blood glucose monitoring. Attached Figure Description

[0015] Figure 1 This is an external image of a dynamic blood glucose meter with a re-emitting implantable needle; Figure 2 A vertical cross-sectional view of a dynamic blood glucose meter with a re-firing implanted needle in the chamber, ready to fire. Figure 3 This is a vertical cross-sectional view of the repeating launcher after it has completed firing. Figure 4 A schematic diagram of the structure of the trigger component for a repetitive firing device; Figure 5 A structural diagram of the lifting pusher, insertion module, and central tube; Figure 6 This is a schematic diagram of the needle-pulling trigger mechanism; Figure 7 This is a schematic diagram of the release mechanism; Figure 8 A schematic diagram of the bottom structure of the release mechanism; Figure 9 This is a structural diagram of the implanted module; Figure 10This is a schematic diagram of the structure to be inserted into the base; Figure 11 for Figure 3 Enlarged view of the local structure at point K.

[0016] In the diagram: 100, Housing; 110, Housing Cover; 111, Claw; 120, Housing Base; 121, Push Rod; 130, Launch Button; 131, Release Button; 200, Loading Base; 300, Lifting Push Base; 301, Buckle Hole; 400, Insertion Module; 410, Insertion Base; 411, PET Soft Needle; 412, Adhesive Tape; 413, Bluetooth Module; 414, Limiting Hole; 420, Insertion Top Cover; 421, Edge Claw Head; 422, Center Claw Head; 423. Steel needle; 424, elastic limiting protrusion; 500, center tube; 501, locking hole; 502, ejector cylinder; 510, ejector pin; 511, ejector pin spring; 520, steel needle clamp; 600, needle withdrawal trigger mechanism; 601, slide bar; 602, locking protrusion; 603, locking spring; 604, L-shaped locking buckle; 700, release mechanism; 701, release rod; 702, locking platform; 703, clamping slot; 704, release spring; 800, launching spring; 900, needle withdrawal spring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example 1: Please refer to Figures 1-11A dynamic blood glucose meter with a re-emitting implantable needle, characterized in that it includes a re-emitting device and an implantation module 400: the implantation module 400 includes an implantation base 410 and an implantation top cover 420, the lower surface of the implantation base 410 is provided with adhesive tape 412, a downwardly extending PET soft needle 411 is provided at the center of the implantation base 410, the implantation top cover 420 is sleeved on the implantation base 410, the top of the implantation top cover 420 is provided with a pair of edge clips 421, and a steel needle 423 is slidably installed at the center of the implantation top cover 420. The top is equipped with a central locking head 422, and the steel needle 423 is the central control structure. The PET soft needle 411 is inserted inside the steel needle 423. The repetitive firing device includes a housing 100, a housing base 120, a housing cover 110, and a loading base 200. A lifting pusher 300 and a central tube 500 are slidably installed inside the housing 100. The bottom of the lifting pusher 300 is engaged with the edge locking head 421. A pair of downwardly extending steel needle clips 520 are provided at the center of the central tube 500, and the steel needle clips 520 are engaged with the central locking head 422. The lifting pusher 300... A launching spring 800 is provided between the housing 100 and the cover 110. A pair of claws 111 extending into the housing 100 are provided on the edge of the cover 110. The ends of the claws 111 protrude outwards and engage with the latch holes 301 on the lifting push base 300. A pair of launching buttons 130 for pressing the claws 111 are installed on the upper part of the outer wall of the housing 100. An outer edge is provided at the upper port of the central tube 500, and a needle-pulling spring 900 is provided between the outer edge and the lifting push base 300. A needle-pulling trigger mechanism 600 is provided inside the lifting push base 300. The needle-pulling trigger mechanism 600 includes a pair of front... The L-shaped latch 604 is installed laterally and horizontally. A pair of L-shaped latches 604 are arranged in a mirror symmetrical manner and a latch spring 603 is provided between them. The locking protrusion 602 on the top of the L-shaped latch 604 is engaged with the locking hole 501 at the lower end of the central tube 500. The slide rod 601 at the bottom of the L-shaped latch 604 extends from the bottom of the lifting push seat 300. A pair of upwardly extending push rods 121 are provided on the housing 120. The upper end of the push rod 121 is engaged with the end of the slide rod 601 through a bevel. The upper chamber base 200 is used to push the lifting push seat 300 up and down to reset.

[0019] The lifting push base 300 is also equipped with a release mechanism 700, which includes a pair of "["-shaped release rods 701 that are horizontally slidably installed. The pair of release rods 701 are arranged in opposite directions and a release spring 704 is provided between the staggered ends. The release rods 701 are provided with a locking platform 702 and a clamping slot 703. Under the elastic force of the release spring 704, the locking platform 702 of one release rod 701 cooperates with the end of the release rod 701 on the opposite side to clamp the edge locking head 421. A pair of steel needle clamps 520 are staggered front and back, and the edge of the end of the steel needle clamp 520 on the same side is inserted into the clamping slot 703 of the release rod 701 on the same side. A pair of release buttons 131 for squeezing the release rods 701 are installed in the lower middle part of the outer wall of the housing 100.

[0020] A limiting hole 414 is provided on the front and rear side walls of the insertion base 410, and an elastic limiting protrusion 424 is provided on the front and rear side walls of the insertion top cover 420. The elastic limiting protrusion 424 is engaged with the limiting hole 414. The bottom of the elastic limiting protrusion 424 is provided with an outwardly extending tail wing. The tail wing is located above the top rod 121. After the tail wing contacts the top rod 121, it flips outward and drives the elastic limiting protrusion 424 to disengage from the limiting hole 414.

[0021] Working principle of this embodiment: Step 1: Loading the module like Figure 2 As shown, with the front lifting pusher 300 in the uppermost loaded position, the protruding end of the front chuck 111 of the inserted module 400 engages with the latch hole 301 on the lifting pusher 300. Figure 1 , Figure 2 , Figure 5 and Figure 7 As shown, when in use, open the sealed packaging of the insertion module 400, and push the insertion module 400, which includes the insertion base 410 and the insertion top cover 420, through the loading base 200. The insertion top cover 420 is locked and fixed to the lifting push seat 300 through the edge clip 421, and the steel needle clip 520 is locked with the center clip 422 to complete the loading.

[0022] Step 2, Launch During launch, the housing 120 is pressed tightly against the skin. (Example) Figure 2 , Figure 3 As shown, pressing the launch button 130 squeezes the latch 111 to disengage it from the latch hole 301, releasing the launch spring 800. Figure 3 and Figure 11 As shown, the launching spring 800 pushes the lifting pusher 300 and the insertion module 400 to move downwards quickly until the insertion module 400 moves to the housing 120, which is the launching completed state. At this time, the steel needle 423, together with the PET soft needle 411 inside it, and the adhesive tape 412 that pierces the skin are tightly attached to the skin.

[0023] like Figure 6 As shown, upon reaching the completion of the firing state, the slide bar 601 is lifted by the upper end of the push rod 121, pushing the L-shaped latch 604 to slide inward, causing the locking protrusion 602 to disengage from the locking hole 501, and the central tube 500 is released. The needle-pulling spring 900 moves the central tube 500 upward, and the steel needle clip 520 pulls the steel needle 423 upward, leaving only the PET soft needle 411 under the skin to monitor blood glucose. Finally, the repeat firing device is removed from the skin, and the base 410 is attached to the skin by the adhesive tape 412, with the PET soft needle 411 inserted subcutaneously.

[0024] Step 3: Reload and release the top cover. like Figure 7As shown, after firing, the insertion top cover 420 remains attached to the bottom of the lifting pusher 300, while the steel needle 423 is held in place by the steel needle clamp 520 at the lower end of the central tube 500. To ensure the reusable firing device can be reused, the insertion top cover 420 and the steel needle 423 need to be detached from the reusable firing device. By pushing the loading base 200, the insertion top cover 420 and the lifting pusher 300 are moved upwards and reset to their original positions. Figure 2 In the middle-high position, complete the reloading.

[0025] like Figure 7 and Figure 8 As shown, after reloading, the end of the steel needle clip 520 is located in the clip groove 703 of the release lever 701 on the same side. At this time, the center chuck 422 and the edge chuck 421 are on the same horizontal line. Pressing the release button 131 pushes the release levers 701 on both sides to slide towards each other. During the sliding process, the chuck 702 moves away from the edge chuck 421, releasing the insertion top cover 420. At the same time, under the action of the clip groove 703, the pair of steel needle clips 520 are opened, and the center chuck 422 at the top of the steel needle 423 is also released. The insertion top cover 420 and the steel needle 423 fall off under the action of gravity.

[0026] In addition, after completing step three again, the front lifting pusher 300 remains in the uppermost loaded position, ready for the insertion module 400 to be loaded again.

[0027] Traditional CGM transmitters are disposable, requiring the entire transmitter to be discarded every 7-14 days after each sensor replacement. This embodiment utilizes a reusable, repeatable transmitter, requiring only the insertion module to be replaced, significantly reducing the financial burden on patients. The use of a steel needle 423 to guide the PET soft needle 411 ensures implantation accuracy. A needle withdrawal trigger mechanism 600 ensures precise needle extraction upon completion of transmission, preventing injury. A release mechanism facilitates the smooth release of the insertion cap 420 and the steel needle, simplifying the replacement process. This embodiment achieves highly efficient reuse of the CGM transmitter, significantly reducing the cost of CGM while ensuring the installability, reliability, and convenience of sensor implantation.

[0028] Example 2: Please refer to Figure 2 , Figure 3 , Figure 6 and Figure 7 A dynamic blood glucose meter with reusable implantable needles differs from Embodiment 1 in that the center tube 500 has an upwardly extending needle cylinder 502 at its center, a needle 510 is slidably installed inside the needle cylinder 502, and a needle spring 511 is provided between the top of the needle 510 and the top cover of the center tube 500. After the release mechanism 700 is triggered, the needle 510 abuts against the center locking head 422.

[0029] Working principle of this embodiment: like Figure 6 and Figure 7 As shown, pressing the release button 131 triggers the release mechanism 700, causing the release rods 701 on both sides to slide towards each other. Under the action of the clamping slot 703, a pair of steel needle clamps 520 are opened, and the central locking head 422 at the top of the steel needle 423 is also released. However, due to the small weight of the steel needle 423, the central locking head 422 may become stuck on one side of the steel needle clamp 520 during the opening process, preventing smooth release. To avoid the steel needle 423 getting stuck, during the release process, the ejector spring 511 pushes the ejector pin 510 to continuously push the central locking head 422, assisting in the release of the steel needle 423 and preventing jamming.

[0030] Example 3: Please refer to Figures 9-10 An insertion module includes an insertion base 410, which is a split structure. The insertion base 410 is snapped into a Bluetooth module 413 and the insertion base 410 and the Bluetooth module 413 are electrically connected through gold-plated contacts on the contact surface.

[0031] An insertion module, wherein a button battery is embedded in an insertion base 410.

[0032] Working principle of this embodiment: like Figure 9 and Figure 10 As shown, the insertion base 410 adopts a split structure, allowing for quick installation or removal of the Bluetooth module 413 via a snap-fit ​​mechanism. After the insertion module 400 is placed on the skin, the Bluetooth module 413 is mounted on the insertion base 10. The contact surface between the Bluetooth module 413 and the insertion base 410 is equipped with gold-plated electrical contacts to ensure stable transmission of blood glucose monitoring data to a mobile phone / receiving device, automatically pairing with external devices such as smartphones, and transmitting blood glucose data collected by the PET soft needle 411 in real time. The base 410 contains a button battery to power the Bluetooth module 413. When the insertion module 400 is replaced, the Bluetooth module 413 can be detached and reused; only the insertion base 410 needs to be replaced. This embodiment enables the reuse of the Bluetooth module 413, further reducing the cost of dynamic blood glucose monitoring.

Claims

1. A dynamic blood glucose meter with a reusable implantable needle, characterized in that, Includes a re-launching device and a placement module (400): The insertion module (400) includes an insertion base (410) and an insertion top cover (420). The lower surface of the insertion base (410) is provided with adhesive tape (412). A PET soft needle (411) extending downward is provided at the center of the insertion base (410). The insertion top cover (420) is sleeved on the insertion base (410). A pair of edge clips (421) are provided on the top of the insertion top cover (420). A steel needle (423) is slidably installed at the center of the insertion top cover (420). A center clip (422) is provided on the top of the steel needle (423). The steel needle (423) is a central control structure. The PET soft needle (411) passes through the inside of the steel needle (423). The re-launching device includes a housing (100), a housing base (120), a housing cover (110), and a loading base (200); a lifting pusher (300) and a central tube (500) are slidably installed inside the housing (100). The bottom of the lifting pusher (300) is engaged with an edge clamp (421). A pair of downwardly extending steel needle clips (520) are provided at the center of the central tube (500), and the steel needle clips (520) are engaged with the central clamp (422); the lifting pusher (300) and the housing cover A launching spring (800) is provided between (110), and a pair of claws (111) extending into the housing (100) are provided on the edge of the housing cover (110). The end of the claw (111) protrudes outward and engages with the buckle hole (301) on the lifting push seat (300). A pair of launching buttons (130) for squeezing the claws (111) are installed on the upper part of the outer wall of the housing (100). The upper port of the central tube (500) is provided with an outer edge, and a needle-pulling spring (900) is provided between the outer edge and the lifting push seat (300). The lifting push base (300) is provided with a needle-pulling trigger mechanism (600). The needle-pulling trigger mechanism (600) includes a pair of L-shaped latches (604) that are horizontally slidably installed in the front and rear. The pair of L-shaped latches (604) are arranged in a mirror symmetrical manner and a latch spring (603) is provided between them. The locking protrusion (602) at the top of the L-shaped latch (604) is engaged with the locking hole (501) at the lower end of the central tube (500). The slide rod (601) at the bottom of the L-shaped latch (604) extends out from the bottom of the lifting push base (300). The housing (120) is provided with an upwardly extending top rod (121) on each of the front and rear sides. The upper end of the top rod (121) is engaged with the end of the slide rod (601) through a bevel. The upper chamber base (200) is used to push the lifting push base (300) up and down to reset it.

2. The dynamic blood glucose meter with a reusable implantable needle according to claim 1, characterized in that, The lifting push base (300) is also provided with a release mechanism (700). The release mechanism (700) includes a pair of "["-shaped release rods (701) that are horizontally slidably installed on the left and right sides. The pair of release rods (701) are arranged in opposite directions and a release spring (704) is provided between the staggered ends. A locking platform (702) and a clamping slot (703) are provided in the release rod (701). Under the elastic force of the release spring (704), the locking platform (702) of one side of the release rod (701) cooperates with the end of the release rod (701) on the opposite side to clamp the edge locking head (421). A pair of steel needle clamps (520) are staggered front and back. The edge of the end of the steel needle clamp (520) on the same side is inserted into the clamping slot (703) of the release rod (701) on the same side. A pair of release buttons (131) for squeezing the release rod (701) are installed in the lower middle part of the outer wall of the housing (100).

3. A dynamic blood glucose meter with a reusable implantable needle according to claim 1, characterized in that, The center tube (500) has an upward-extending ejector cylinder (502) at its center. An ejector pin (510) is slidably installed inside the ejector cylinder (502). An ejector pin spring (511) is provided between the top of the ejector pin (510) and the top cover of the center tube (500). After the release mechanism (700) is triggered, the ejector pin (510) abuts against the center locking head (422).

4. A dynamic blood glucose meter with a reusable implantable needle according to claim 1, characterized in that, The insertion base (410) has a limiting hole (414) on each of its front and rear side walls, and the insertion top cover (420) has an elastic limiting protrusion (424) on each of its front and rear side walls. The elastic limiting protrusion (424) engages with the limiting hole (414). The bottom of the elastic limiting protrusion (424) has an outwardly extending tail wing. The tail wing is located above the top rod (121). After the tail wing contacts the top rod (121), it flips outward and drives the elastic limiting protrusion (424) to disengage from the limiting hole (414).

5. An implantation module suitable for a dynamic blood glucose meter with a reusable implantable needle as described in any one of claims 1-4, comprising an implantation base (410), characterized in that, The insertion base (410) is a split structure. The insertion base (410) and the Bluetooth module (413) are snapped together. The insertion base (410) and the Bluetooth module (413) are electrically connected through gold-plated contacts on the contact surface.

6. The insertion module according to claim 5, characterized in that, The insertion base (410) contains a button battery.

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