Applicator for emission analyte sensor

Abstract

The utility model relates to transmitting equipment for medical monitoring, and discloses an applicator for transmitting an analyte sensor, which comprises a needle assisting shell, a trigger sleeve and a boosting core, the needle assisting shell is sleeved on the trigger sleeve, the boosting core is accommodated in the trigger sleeve through a locking mechanism, and an elastic element is arranged between the trigger sleeve and the boosting core; the locking mechanism comprises an ejector block arranged on the inner wall of the needle assisting shell, a limiting elastic piece arranged on the trigger sleeve and a limiting hole formed in the boosting core. During locking, the ejector block abuts against the limiting elastic piece, and the lower end of the limiting elastic piece is limited in the limiting hole. During unlocking, the needle assisting shell drives the ejector block to be separated from the limiting elastic piece, and the elastic element drives the boosting core to eject the limiting elastic piece open. The locking mechanism can be unlocked by exerting acting force on the auxiliary needle shell, the auxiliary needle shell pushes the boosting core to move downwards, the ejector block on the auxiliary needle shell is separated from the limiting elastic piece, the locking mechanism is unlocked, the boosting core is released, no additional component is needed to drive the boosting core, and no window needs to be formed in the auxiliary needle shell.

Description

Technical Field

[0001] This utility model relates to a transmitting device for medical monitoring, and more particularly to an applicator for transmitting an analytical substance sensor. Background Technology

[0002] An applicator acts as a launching device, its function being to implant an analyte sensor into the skin, allowing people to monitor relevant bodily indicators in real time. A common example is a blood glucose meter. There are various forms of applicators. One type involves a stationary outer shell, where a pusher or top cover moves a booster core, thereby disengaging the locking mechanism between the booster core and the outer shell. The booster core is then launched onto the skin by a spring. For example, the applicator with publication number CN117481642A requires a window in the outer shell for activation. The pusher or top cover moves the booster core through the corresponding window. The window design makes it easy for dust to enter, affecting the lifespan of the applicator. Utility Model Content

[0003] This invention addresses the shortcomings of existing technologies by providing an applicator for an emission analyzer sensor.

[0004] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method:

[0005] The applicator for the emission analyzer sensor includes an auxiliary needle housing, a trigger sleeve, and a booster core. The auxiliary needle housing is fitted onto the trigger sleeve, and the booster core is housed within the trigger sleeve via a locking mechanism. An elastic element is provided between the trigger sleeve and the booster core.

[0006] The locking mechanism includes a top block on the inner wall of the needle housing, a limiting spring on the trigger sleeve, and a limiting hole on the booster core. When locked, the top block abuts against the limiting spring, and the lower end of the limiting spring is limited within the limiting hole. When unlocked, the top block disengages from the limiting spring, the limiting spring disengages from the limiting hole, and the elastic element pushes the booster core to move.

[0007] Preferably, the lower end of the limiting spring is provided with a protrusion for limiting the spring within the limiting hole, and the upper and lower side walls of the protrusion are inclined surfaces.

[0008] Preferably, the limiting hole is an elongated hole extending from top to bottom, and the upper side wall of the limiting hole is provided with a guide opening for guiding. When unlocking, the protrusion slides out of the limiting hole along the side wall of the guide opening.

[0009] Preferably, the lower end of the top block is provided with an inclined guide surface. When the trigger sleeve is inserted into the needle housing, the limiting spring is connected to the top block through the guide surface.

[0010] Preferably, the outer wall of the trigger sleeve is provided with an axially extending guide hole, and a positioning block is fixed on the outer wall of the top of the booster core, and the positioning block moves axially along the guide hole.

[0011] Preferably, the inner wall of the needle housing is provided with a push block, and the trigger sleeve is evenly distributed with at least two guide push holes, the push block extends into the guide push hole and pushes against the push core.

[0012] Preferably, the inner wall of the needle housing is provided with a guide block, and the outer wall of the trigger sleeve is provided with a guide groove. The guide block is engaged in the guide groove and moves along its extension direction.

[0013] Preferably, the lower end of the booster core is provided with a mounting groove, the launcher is installed in the mounting groove, the mounting groove is provided with a hook, and the side wall of the launcher is provided with a slot, and the hook and slot are engaged and connected.

[0014] This utility model, by adopting the above technical solution, has significant technical effects:

[0015] The operator can unlock the locking mechanism by applying force to the needle housing. The needle housing pushes the booster core downward, and the top block on the needle housing disengages from the limiting spring, unlocking the locking mechanism and releasing the booster core. No additional components are needed to drive the booster core, nor is it necessary to open a window on the needle housing.

[0016] The locking mechanism can be unlocked by misaligning the top block and the limiting spring. The structure is simple and easy to process. Attached Figure Description

[0017] Figure 1 This is a cross-sectional structural diagram of the present invention.

[0018] Figure 2 This is an exploded structural diagram of the present invention.

[0019] Figure 3 This is a schematic diagram of the structure of the needle shell.

[0020] Figure 4 This is a schematic diagram of the trigger sleeve.

[0021] Figure 5 This is a schematic diagram of the booster core.

[0022] The names of the body parts referred to by the numbers in the above attached diagrams are as follows:

[0023] 1—Needle housing, 11—Top block, 12—Push block, 13—Guide block, 111—Guide surface

[0024] 2—Trigger sleeve, 21—Limiting spring, 22—Guide hole, 23—Guide push hole, 24—Guide groove, 211—Protrusion

[0025] 3—Booster core, 31—Limiting hole, 32—Guide port, 33—Positioning block, 34—Mounting groove, 35—Hook

[0026] 4—Transmitter, 41—Card slot Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-5 The present invention will be further described in detail with reference to the embodiments.

[0028] Example 1

[0029] The applicator for the emission analyzer sensor includes a needle housing 1, a trigger sleeve 2, and a booster core 3. The needle housing 1 is fitted onto the trigger sleeve 2, and the upper end of the trigger sleeve 2 extends into the needle housing 1. Pushing the needle housing 1 allows it to move along the trigger sleeve 2. The booster core 3 is housed within the trigger sleeve 2 via a locking mechanism. The locking mechanism limits the booster core 3 within the trigger sleeve 2. An elastic element, which is a spring, is provided between the trigger sleeve 2 and the booster core 3. When the locking mechanism is unlocked, the elastic element pushes the booster core 3 to move.

[0030] The locking mechanism includes a top block 11 on the inner wall of the needle housing 1, a limiting spring 21 on the trigger sleeve 2, and a limiting hole 31 on the pusher core 3. The top block 11 is formed on the inner wall of the needle housing 1, and there are four top blocks 11 evenly distributed on the needle housing 1. The lower end of the limiting spring 21 is integrally formed on the trigger sleeve 2, and there are also four limiting springs 21 evenly distributed on the trigger sleeve 2. There are also four limiting springs 31 evenly distributed on the pusher core 3. When locked, the top block 11 abuts against the outer wall of the limiting spring 21, and the lower end of the limiting spring 21 is limited in the limiting hole 31. When unlocked, the needle housing 1 pushes the pusher core 3 downward, the top block 11 disengages from the limiting spring 21, the limiting spring 21 disengages from the limiting hole 31, the elastic element releases its elastic force and pushes the pusher core 3 downward.

[0031] The lower inner side of the limiting spring 21 is provided with a protrusion 211 for limiting the spring 21 in the limiting hole 31. The upper and lower side walls of the protrusion 211 are inclined surfaces. The protrusion 211 can easily form a limiting position with the limiting hole 31. The inclined surface of the protrusion 211 plays a guiding role, which makes it convenient for the limiting spring 211 to lock or unlock with the limiting hole 31.

[0032] The limiting hole 31 is an elongated hole extending from top to bottom. The upper side wall of the limiting hole 31 is provided with a guide opening 32 for guiding. The guide opening 32 cooperates with the protrusion 211 of the limiting spring 21. When unlocking, the protrusion 211 slides out of the limiting hole 31 along the side wall of the guide opening 32.

[0033] The outer wall of the trigger sleeve 2 is provided with an axially extending guide hole 22. The guide hole 22 is an axially extending strip-shaped hole, which not only serves as a guide but also as a limiting function. A positioning block 33 is fixed to the outer wall of the top of the booster core 3. The positioning block 33 is integrally formed on the top of the booster core 3. The positioning block 33 moves axially along the guide hole 22. The positioning block 33 cooperates with the guide hole 22 so that the booster core 3 will not completely separate from the trigger sleeve 2 after unlocking and starting.

[0034] A push block 12 is provided on the inner wall of the needle housing 1. The push block 12 is integrally formed on the inner wall of the needle housing 1. At least two guide push holes 23 are evenly distributed on the trigger sleeve 2. In this embodiment, there are four guide push holes 23. Each guide push hole 23 cooperates with a push block 12. The push block 12 extends into the guide push hole 23 and pushes against the push core 3. When unlocking, the push block 12 pushes the push core 3 through the guide push hole 23.

[0035] The lower end of the booster core 3 has a mounting slot 34, in which a transmitter 4 is installed. The transmitter 4 is used to install an analyte sensor. The transmitter 4, carrying the analyte sensor, is attached to the skin, and the analyte sensor is implanted into the skin. The mounting slot 34 has a hook 35, and the side wall of the transmitter 4 has a slot 41. The hook 35 engages with the slot 41. When the transmitter 4 is attached to the skin, the operator lifts the booster housing 1, and the hook 35 disengages from the slot 41.

[0036] Example 2

[0037] Example 2 is basically the same as Example 1, except that the lower end of the top block 11 is provided with an inclined guide surface 111. When the trigger sleeve 2 is inserted into the auxiliary needle housing 1, the limiting spring 21 contacts and connects with the top block 11 through the guide surface 111. The guide surface 111 plays a guiding role, which facilitates the assembly of the trigger sleeve 2 into the auxiliary housing 1, so that the top block 11 and the limiting spring 21 are precisely matched.

[0038] Example 3

[0039] Example 2 is basically the same as Example 1, except that the inner wall of the needle housing 1 is provided with guide blocks 13. The number of guide blocks 13 is equal to the number of push blocks 12. The guide blocks 13 are integrally formed on the inner wall of the needle housing 1, and the push blocks 12 are located at the upper end of the guide blocks 13. The outer wall of the trigger sleeve 2 is provided with a guide groove 24, which connects to the guide push hole 23. The guide blocks 13 are engaged in the guide groove 24 and move along its extension direction. The guide blocks 13 increase the stability of the needle housing 1 on the trigger sleeve 2, and also facilitate the positioning and assembly of the trigger sleeve 2 into the needle housing 1.

Claims

1. An applicator for an analyte sensor, comprising a needle housing (1), a trigger sleeve (2), and a booster core (3), wherein the needle housing (1) is fitted onto the trigger sleeve (2), the booster core (3) is housed within the trigger sleeve (2) via a locking mechanism, and an elastic element is provided between the trigger sleeve (2) and the booster core (3); characterized in that: The locking mechanism includes a top block (11) on the inner wall of the needle housing (1), a limiting spring (21) on the trigger sleeve (2), and a limiting hole (31) on the push core (3). When locked, the top block (11) abuts against the limiting spring (21), and the lower end of the limiting spring (21) is limited in the limiting hole (31). When unlocked, the top block (11) disengages from the limiting spring (21), the limiting spring (21) disengages from the limiting hole (31), and the elastic element pushes the push core (3) to move.

2. The applicator for the emission analyzer sensor according to claim 1, characterized in that: The lower end of the limiting spring (21) is provided with a protrusion (211) for limiting the spring in the limiting hole (31), and the upper and lower side walls of the protrusion (211) are inclined surfaces.

3. The applicator for the emission analyte sensor according to claim 2, characterized in that: The limiting hole (31) is an elongated hole extending from top to bottom. The upper side wall of the limiting hole (31) is provided with a guide opening (32) for guiding. When unlocking, the protrusion (211) slides out of the limiting hole (31) along the side wall of the guide opening (32).

4. The applicator for the emission analyte sensor according to claim 1, characterized in that: The top block (11) has an inclined guide surface (111) at its lower end. When the trigger sleeve (2) is inserted into the needle housing (1), the limiting spring (21) contacts and connects with the top block (11) through the guide surface (111).

5. The applicator for the emission analyzer sensor according to claim 1, characterized in that: The outer wall of the trigger sleeve (2) is provided with an axially extending guide hole (22), and the top outer wall of the booster core (3) is fixed with a positioning block (33), which moves axially along the guide hole (22).

6. The applicator for the emission analyte sensor according to claim 1, characterized in that: The inner wall of the needle housing (1) is provided with a push block (12), and the trigger sleeve (2) is evenly distributed with at least two guide push holes (23). The push block (12) extends into the guide push hole (23) and pushes against the push core (3).

7. The applicator for the emission analyte sensor according to claim 1, characterized in that: The inner wall of the needle housing (1) is provided with a guide block (13), and the outer wall of the trigger sleeve (2) is provided with a guide groove (24). The guide block (13) is engaged in the guide groove (24) and moves along its extension direction.

8. The applicator for the emission analyzer sensor according to any one of claims 1-7, characterized in that: The lower end of the booster core (3) is provided with a mounting groove (34), and a transmitter (4) is installed in the mounting groove (34). A hook (35) is provided in the mounting groove (34), and a slot (41) is provided on the side wall of the transmitter (4). The hook (35) and the slot (41) are engaged and connected.

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