CN216907974U

CN216907974U - Needle assisting device assembly and automatic implanting installation mechanism of dynamic blood glucose meter

Info

Publication number: CN216907974U
Application number: CN202120633332.9U
Authority: CN
Inventors: 金久和; 李才华
Original assignee: Beijing Yicheng Bioelectronics Technology Co ltd
Current assignee: Beijing Yicheng Bioelectronics Technology Co ltd
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2022-07-08
Anticipated expiration: 2031-03-29

Abstract

The utility model provides a needle assisting device assembly and an automatic implanting installation mechanism of a dynamic blood glucose meter, wherein the needle assisting device assembly comprises an outer shell, the outer shell is provided with a top wall and an outer annular wall which is constructed on one side of the top wall and extends along one axial side of the outer shell, an inner annular wall is further constructed on the top wall, the inner annular wall is positioned on the radial inner side of the outer annular wall and is coaxial with the outer annular wall, the puncturing assembly further comprises a pressure spring support, a guide section of the pressure spring support can be inserted into the inner annular wall, a puncturing pressure spring is sleeved on the outer peripheral wall of the inner annular wall, the puncturing pressure spring can apply force on the pressure spring support so that the pressure spring support can generate displacement on one side departing from the top wall, a needle tube assembly is connected onto the pressure spring support, and a puncturing needle in the needle tube assembly is coaxial with the puncturing pressure spring. The needle booster has a compact and reasonable internal structure, and the puncture pressure spring and the puncture needle are coaxially designed, so that the stress in the needle pushing process is balanced, and the positioning of the needle inserting position is more accurate.

Description

Needle assisting device assembly and automatic implanting installation mechanism of dynamic blood glucose meter

Technical Field

The utility model belongs to the technical field of in-vitro diagnosis instrument design, and particularly relates to an automatic implantation mounting mechanism for a needle assisting device assembly and a dynamic blood glucose meter.

Background

With the improvement of living standard of people, the nutrient absorption is higher and higher, and diabetes is frequent, so that the life of people is threatened; the regular detection of physiological indexes such as blood sugar of the body becomes the key for healthy life and improvement of living standard.

Currently, there are no more than two methods for testing blood glucose: pricking fingertips to suck blood and dripping the blood on a test strip inserted into a glucometer so as to detect a discrete value of blood sugar; and secondly, implanting the blood glucose sensing test strip by using the dynamic blood glucose meter needle assisting device, detecting the blood glucose value by using the reaction of enzyme on the blood glucose sensing test strip and subcutaneous tissue fluid, and sending the tested blood glucose value to a recording terminal through a wireless transmitter, so as to record a section of long-time continuous blood glucose value and remind a patient to take medicine. The implantation of the existing blood sugar sensing test strip is mainly a manual method and a semi-automatic method, the difficulty of operation is higher, the safety and the experience are poorer, and the test strip is easily polluted.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the utility model is to provide a needle assistor assembly and a dynamic blood glucose meter automatic implantation mounting mechanism, the internal structure of the needle assistor is compact and reasonable, and the puncture pressure spring and the puncture needle are coaxially designed, so that the stress in the needle pushing process is balanced, and the positioning of the needle inserting position is more accurate.

In order to solve the problems, the utility model provides a needle assisting device assembly which comprises an outer shell, wherein the outer shell is provided with a top wall, an outer annular wall which is formed on one side of the top wall and extends along one axial side of the outer shell, an inner annular wall is further formed on the top wall, the inner annular wall is located on the inner radial side of the outer annular wall and is coaxial with the outer annular wall, the puncturing assembly comprises a pressure spring support, a guide section of the pressure spring support can be inserted into the inner annular wall, a puncturing pressure spring is sleeved on the outer peripheral wall of the inner annular wall and can apply force to the pressure spring support so that the pressure spring support can deviate from one side of the top wall to generate displacement, a needle tube assembly is connected onto the pressure spring support, and a puncturing needle in the needle tube assembly is coaxial with the puncturing pressure spring.

Preferably, a button is provided between the outer annular wall and the pressure spring holder, the button has an unlocking position received inside the outer annular wall and a locking position extending outside the outer annular wall, when the button is in the locking position, one end of the guide section facing the top wall is located inside the inner cylinder of the inner annular wall and the puncture pressure spring is in a compressed state, and when the button is in the unlocking position, one end of the guide section facing the top wall is disengaged from the inner cylinder of the inner annular wall and the puncture pressure spring is in a sprung state.

Preferably, the puncture assembly further comprises a pressure spring cap, the bottom of the pressure spring cap is connected with the needle tube assembly, the pressure spring cap is located in a central cylinder cavity of the pressure spring support, a needle withdrawing pressure spring is clamped between the pressure spring cap and the pressure spring support, the needle withdrawing pressure spring is coaxial with the puncture pressure spring, and when the guide section is withdrawn from the inner cylinder of the inner annular wall, the needle withdrawing pressure spring can apply force to the pressure spring cap so that the pressure spring cap can drive the puncture needle to move towards one side of the top wall.

Preferably, the guide section has an elastic hook towards one end of the top wall, and the pressure spring cap has a chamfer towards one end of the top wall, the chamfer being matched with the elastic hook.

Preferably, a return spring is arranged between the button and the pressure spring support, and when the button is in the locking position, the return spring is in a compressed state.

Preferably, the outer side of the outer ring wall is sleeved with a button protection cover, the button protection cover covers the outer force application surface of the button, and the button protection cover can be removed from the outer force application surface of the button when puncture is performed.

Preferably, the button protection cover has two opposite guide protrusions on the inner side thereof, two opposite sliding grooves are formed on the outer sidewall of the outer annular wall, the two guide protrusions are slidably connected to the two sliding grooves in a one-to-one correspondence manner, and the sliding grooves extend along the axial direction of the outer annular wall.

Preferably, one end of the outer annular wall, which is far away from the top wall, is provided with a connecting part, and the connecting part can be detachably connected with a fixed base assembly.

The utility model also provides an automatic implantation installation mechanism of the dynamic glucometer, which comprises a fixed base component, a needle assisting device component, a transmitter component and a blood glucose sensing test strip component, wherein the needle assisting device component and the transmitter component can be mutually replaced and detachably connected with the fixed base component, and the needle assisting device component is the needle assisting device component.

Preferably, the fixation base assembly comprises a fixation base and a medical waterproof adhesive on its bottom side.

According to the automatic implantation installation mechanism of the needle assistor assembly and the dynamic glucometer, due to the coaxial design of the puncture pressure spring and the puncture needle, the stress in the needle pushing process is balanced, the needle inserting position is positioned more accurately, meanwhile, the structural design of the needle assistor is more compact and reasonable, the number of parts is small, the needle assistor assembly is convenient to assemble, and meanwhile, the movement failure caused by manufacturing and assembling reasons can be avoided.

Drawings

FIG. 1 is a schematic view of the internal structure of a needle assist device assembly according to an embodiment of the present invention, wherein the button is in a locked position;

FIG. 2 is a schematic perspective view of a needle assist device assembly according to an embodiment of the present invention, showing a button protection cover in an unassembled state;

FIG. 3 is a schematic view of the inner structure of the needle assisting device assembly and the fixing, manufacturing and assembling apparatus according to the embodiment of the present invention;

FIG. 4 shows the needle assembly of FIG. 3 with the push button in the unlocked position, with the needle inserted moving in the direction of the arrow to form a puncture, showing the top of the guide section just exiting the inner cylinder of the inner annular wall, with the resilient catch of the needle assembly opening radially outward under the action of the needle retraction spring.

FIG. 5 shows the needle withdrawing assembly of FIG. 4 with the push button in the unlocked position, showing the guide section having been withdrawn from the inner barrel of the inner annular wall and the resilient catch of the guide section opening radially outwardly under the action of the needle withdrawing compression spring.

FIG. 6 is a schematic perspective view of the assembly of a blood glucose sensing strip assembly and a mounting base assembly of the self-contained dynamic glucose meter mounting mechanism according to one embodiment of the present invention;

FIG. 7 is a perspective view of the stationary base assembly of FIG. 6;

FIG. 8 is a perspective view of the transmitter assembly and the stationary base assembly of the automatic implanting installation mechanism of the dynamic blood glucose meter in accordance with one embodiment of the present invention;

fig. 9 is a schematic view of the internal structure of fig. 8.

The reference numerals are represented as:

1. an outer housing; 11. a top wall; 12. an outer annular wall; 121. a chute; 13. an inner annular wall; 14. a connecting portion; 2. a pressure spring bracket; 21. a guide section; 211. an elastic clamping hook; 22. a pressure spring cap; 31. puncturing a pressure spring; 32. withdrawing the needle pressure spring; 4. a button; 41. a return spring; 51. puncturing needle; 6. a button protection cover; 61. a guide projection; 100. a needle assist assembly; 200. fixing the base assembly; 201. a fixed base; 202. medical waterproof adhesive tape; 300. a transmitter assembly; 400. a blood glucose sensing strip component; 500. a waterproof prepressing soft body.

Detailed Description

With reference to fig. 1 to 9 in combination, according to an embodiment of the present invention, a needle assisting device is provided, which includes an outer casing 1, the outer casing 1 has a top wall 11 and an outer annular wall 12 configured on one side of the top wall 11 and extending along one axial side of the outer casing 1, an inner annular wall 13 is further configured on the top wall 11, an annular gap is formed between the outer annular wall 12 and the inner annular wall 13, the inner annular wall 13 is located at a radial inner side of the outer annular wall 12 and is coaxial with the outer annular wall 12, and a puncturing assembly (not shown) is further included, the puncturing assembly includes a pressure spring holder 2, the pressure spring holder 2 has a guiding section 21 capable of being inserted into the inner annular wall 13, an inner cylindrical wall of the inner annular wall 13 is formed to limit movement of the guiding section 21, a puncturing pressure spring 31 is sleeved on an outer circumferential wall of the inner annular wall 13, and the puncturing pressure spring 31 is also located in the annular gap, the puncture pressure spring 31 can apply force in on the pressure spring support 2 so that the pressure spring support 2 can deviate from roof 11 one side produces the displacement, be connected with the needle tubing subassembly on the pressure spring support 2, the needle tubing subassembly include the needle file (not mark in the figure) and connect in puncture needle 51 on the needle file, puncture needle 51 with puncture pressure spring 31 is coaxial. In the technical scheme, the puncture pressure spring 31 and the puncture needle 51 are coaxially designed, so that the stress in the needle pushing process is balanced, the needle inserting position is positioned more accurately, the structural design of the needle assisting device is more compact and reasonable, the number of parts is less, and the movement failure caused by manufacturing and assembling reasons can be avoided while the needle assisting device is convenient to assemble. It will be appreciated that the blood glucose sensing strip assembly 400 will be subcutaneously implanted following the penetration of the piercing needle 51 in the needle assembly, and as is well known in the art, the present invention will not be described in detail.

In some embodiments, a button 4 is provided between the outer annular wall 12 and the pressure spring holder 2, the button 4 has an unlocking position received inside the outer annular wall 12 and a locking position extending outside the outer annular wall 12, when the button 4 is in the locking position, one end of the guide section 21 facing the top wall 11 is located inside the inner cylinder of the inner annular wall 13 and the puncture pressure spring 31 is in a compressed state, and when the button 4 is in the unlocking position, one end of the guide section 21 facing the top wall 11 is disengaged from the inner cylinder of the inner annular wall 13 and the puncture pressure spring 31 is in an ejected state. In the technical scheme, the puncture of the puncture needle 51 can be triggered through the design of the button 4, so that an operator (patient) can conveniently control the needle assisting device.

In some embodiments, the puncture assembly further includes a pressure spring cap 22, the bottom of the pressure spring cap 22 is connected to the needle tube assembly, the pressure spring cap 22 is located in a central cylindrical cavity of the pressure spring holder 2, a needle withdrawing pressure spring 32 is interposed between the pressure spring cap 22 and the pressure spring holder 2, the needle withdrawing pressure spring 32 is coaxial with the puncture pressure spring 31, and when the guide section 21 is removed from the inner cylinder of the inner annular wall 13, the needle withdrawing pressure spring 32 can apply a force to the pressure spring cap 22 so that the pressure spring cap 22 can drive the puncture needle 51 to displace toward the top wall 11 side. In this embodiment, the puncture needle 51 can be automatically withdrawn by the needle withdrawing pressure spring 32, and it can be understood that the blood glucose sensing strip assembly 400 will not be withdrawn following the withdrawal of the puncture needle 51, but will remain implanted under the skin of the patient.

In some embodiments, as shown in fig. 3 to 5, the end of the guide section 21 facing the top wall 11 (i.e. the top end thereof) has an elastic hook 211, and the end of the compression spring cap 22 facing the top wall 11 has a chamfer matching with the elastic hook 211. When the button 4 is in the locking position, the guide section 21 is inserted into the inner cylinder of the inner annular wall 13, the inner cylinder wall body of the inner ring wall 13 limits the outward radial movement of the elastic hooks 211, so that before the guide section 21 is separated from the inner cylinder of the inner annular wall 13, the compression spring cap 22 and the elastic snap 211 are integrally connected in a buckled manner, the puncture needle 51 can move downwards under the action of the puncture spring 31 to realize puncture, when the guiding segment 21 is pulled out from the inner cylinder of the inner annular wall 13, the elastic hook 211 is no longer constrained by the inner cylinder wall of the inner annular wall 13, under the action of the needle withdrawing pressure spring 32, the pressure spring cap 22 forces the elastic hook 211 to turn outwards (pop up) along the radial direction, and the pressure spring cap 22 further drives the puncture needle 51 to move upwards to complete automatic needle withdrawing.

In some embodiments, a return spring 41 is disposed between the button 4 and the compressed spring holder 2, when the button 4 is in the locking position, the return spring 41 is in a compressed state, and the return spring 41 in the compressed state can apply a force on the button 4, so that the button 4 can be prestressed radially outward along the outer housing 1, and puncture caused by erroneous pressing of the button 4 by an operator is prevented to a certain extent. Further, the outer side of the outer ring wall 12 is sleeved with a button protection cover 6, the button protection cover 6 covers the outer side force application surface of the button 4, and when puncturing is performed, the button protection cover 6 can be removed from the outer side force application surface of the button 4, so that the phenomenon of mistaken touch can be effectively avoided.

The button protection cover 6 is provided with two opposite guide protrusions 61 on the inner side, two opposite sliding grooves 121 are formed on the outer sidewall body of the outer annular wall 12, the two guide protrusions 61 are respectively connected in the two sliding grooves 121 in a sliding manner in a one-to-one correspondence manner, the sliding grooves 121 extend along the axial direction of the outer annular wall 12, the two opposite guide protrusions 61 enable the button protection cover 6 to be reliably connected to the outer sidewall of the outer annular wall 11, when puncture is needed, an operator only needs to push the button protection cover 6 along the guide direction of the sliding grooves 121 to expose the button 4, and then the operator can trigger the puncture of the puncture needle 51 by pressing the button 4.

The end of the outer annular wall 12 away from the top wall 11 has a connecting portion 14, the connecting portion 14 can be detachably connected to a fixing base assembly 200, which completes the puncturing by a puncturing needle 51, the blood glucose sensing strip assembly 400 is implanted in synchronization with the puncturing process, after the puncturing needle 51 is withdrawn, an operator can disconnect the needle assistant assembly 100 from the fixing base assembly 200, and then connect the transmitter assembly 300 to the fixing base assembly 200, that is, the needle assistant assembly 100 and the fixing base assembly 200 are in a mutual substitution relationship, wherein the needle assistant assembly 100 is used for assisting the implantation of the blood glucose sensing strip assembly 400 to a subcutaneous position of a patient, and the transmitter assembly 300 is used for forming an electrical connection with the blood glucose sensing strip assembly 400, so as to transmit relevant parameter values of blood glucose and the like to corresponding recording terminals, thereby recording a long-term continuous blood sugar value and reminding the patient to take medicine, etc.

Therefore, the utility model also provides a dynamic blood glucose meter automatic implantation mounting mechanism, which comprises a fixing base assembly 200, a needle assisting device assembly 100, a transmitter assembly 300 and a blood glucose sensing test strip assembly 400, wherein the needle assisting device assembly 100 and the transmitter assembly 300 can be detachably connected with the fixing base assembly 200 in a mutual replacement mode, and the needle assisting device assembly 100 is the needle assisting device assembly. Preferably, the fixation base assembly 200 comprises a fixation base 201 and a medical waterproof adhesive 202 on its bottom side. The transmitter assembly 300 generally comprises an upper housing, a lower housing, and a board assembly (including circuit boards, connectors, batteries, etc.), as is well known in the art, and will not be described in detail herein.

As shown in fig. 9, the mating position between the emitter component 300 and the fixing base component 200 and the mating position between the blood glucose sensing strip component 400 and the fixing base component 200 are provided with corresponding waterproof pre-pressing soft bodies 500 to improve the waterproof performance.

It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A needle assisting device assembly is characterized by comprising an outer shell (1), wherein the outer shell (1) is provided with a top wall (11), an outer annular wall (12) which is formed on one side of the top wall (11) and extends along one axial side of the outer shell (1), an inner annular wall (13) is further formed on the top wall (11), the inner annular wall (13) is located on the radial inner side of the outer annular wall (12) and is coaxial with the outer annular wall (12), the puncture assembly comprises a pressure spring support (2), a guide section (21) of the pressure spring support (2) can be inserted into the inner annular wall (13), a puncture pressure spring (31) is sleeved on the outer peripheral wall of the inner annular wall (13), and the puncture pressure spring (31) can apply force on the pressure spring support (2) to enable the pressure spring support (2) to deviate from one side of the top wall (11) to generate displacement, the pressure spring support (2) is connected with a needle tube assembly, and a puncture needle (51) in the needle tube assembly is coaxial with the puncture pressure spring (31).

2. Needle aid assembly according to claim 1, characterized in that between the outer annular wall (12) and the pressure spring holder (2) there is a button (4), the button (4) having an unlocked position, in which it is received inside the outer annular wall (12), and a locked position, in which it protrudes outside the outer annular wall (12), when the button (4) is in the locked position, the end of the guide section (21) facing the top wall (11) is inside the inner cylinder of the inner annular wall (13) and the puncture pressure spring (31) is in a compressed state, and when the button (4) is in the unlocked position, the end of the guide section (21) facing the top wall (11) is disengaged from the inner cylinder of the inner annular wall (13) and the puncture pressure spring (31) is in an ejected state.

3. The needle assisting device assembly according to claim 2, wherein the puncture assembly further comprises a pressure spring cap (22), the bottom of the pressure spring cap (22) is connected with the needle tube assembly, the pressure spring cap (22) is located in a central cylindrical cavity of the pressure spring support (2), a needle withdrawing pressure spring (32) is clamped between the pressure spring cap (22) and the pressure spring support (2), the needle withdrawing pressure spring (32) is coaxial with the puncture pressure spring (31), and when the guide section (21) is withdrawn from the inner cylindrical wall (13) of the inner annular wall, the needle withdrawing pressure spring (32) can apply force to the pressure spring cap (22) so that the pressure spring cap (22) can drive the puncture needle (51) to displace towards one side of the top wall (11).

4. Needle aid assembly according to claim 3, characterized in that the guiding section (21) has a resilient catch (211) at the end towards the top wall (11) and the compression spring cap (22) has a chamfer at the end towards the top wall (11), which chamfer matches the resilient catch (211).

5. Needle booster assembly according to claim 2, characterized in that a return spring (41) is arranged between the button (4) and the compressed spring holder (2), the return spring (41) being in a compressed state when the button (4) is in the locked position.

6. The needle aid assembly according to claim 2, wherein the outer side of the outer annular wall (12) is sleeved with a button protection cover (6), the button protection cover (6) covers the outer force application surface of the button (4), and the button protection cover (6) can be removed from the outer force application surface of the button (4) when puncturing is performed.

7. The needle aid assembly according to claim 6, wherein the inner side of the button protection cover (6) is provided with two opposite guide protrusions (61), the outer side wall body of the outer ring wall (12) is provided with two opposite slide grooves (121), the two guide protrusions (61) are respectively connected in the two slide grooves (121) in a one-to-one correspondence manner, and the slide grooves (121) extend along the axial direction of the outer ring wall (12).

8. The needle aid assembly according to claim 1, characterized in that the end of the outer annular wall (12) remote from the top wall (11) has a connecting portion (14), the connecting portion (14) being detachably connectable to a stationary base assembly (200).

9. A dynamic blood glucose meter auto-implant mounting mechanism comprising a stationary base assembly (200), a needle assister assembly (100), a transmitter assembly (300), a blood glucose sensing test strip assembly (400), wherein the needle assister assembly (100) and the transmitter assembly (300) are removably connectable to the stationary base assembly (200) in a replaceable manner with respect to each other, characterized in that the needle assister assembly (100) is the needle assister assembly of any one of claims 1 to 8.

10. The dynamic glucose meter auto-implant mounting mechanism of claim 9 wherein the stationary base assembly (200) comprises a stationary base (201) and a waterproof medical tape (202) on its bottom side.