CN219166413U - Continuous blood sugar monitoring device - Google Patents

Abstract

The utility model discloses a continuous blood sugar monitoring device, which comprises a shell component, a boosting core arranged in the shell component, and a skin fixing seat, wherein the shell component comprises a shell, one end of the shell is provided with an opening, the boosting core is provided with a locking state fixed relative to the shell and a triggering state capable of moving towards the opening, the skin fixing seat is fixed at one end of the boosting core, the monitoring device also comprises a triggering piece, the side wall of the shell is provided with a guiding slideway, the guiding slideway extends towards the opening, and the triggering piece can move towards the opening along the guiding slideway and is provided with a first position and a second position relative to the shell so as to enable the boosting core to be switched from the locking state to the triggering state. The triggering direction of the triggering piece faces the opening, the force application direction of the fingers of the hand holding shell of the user is inwards along the radial direction of the shell, and the force application directions of the two actions are mutually perpendicular, so that the probability of mistakenly touching the triggering piece when the user holds the shell is reduced, and the risk of mistakenly triggering the monitoring device is reduced.

Description

Continuous blood sugar monitoring device

Technical Field

The utility model belongs to the technical field of medical equipment, and particularly relates to a continuous blood glucose monitoring device.

Background

A biosensor is an instrument that is sensitive to bioactive substances and converts the perceived concentration of bioactive substances into an electrical signal for detection. Among them, glucose sensors are a more common type of biological sensor. CGM (continuous blood glucose monitoring) is a technical means for continuously monitoring the glucose concentration of interstitial fluid in subcutaneous tissue by means of a glucose sensor, thereby indirectly reflecting the blood glucose level.

When the CGM product is used, a user needs to place the shell of the CGM product on skin, then press the trigger button, at the moment, the puncture needle and the sensor pin inside the shell move towards the skin and puncture the skin of a human body, and the biological enzyme on the sensor and subcutaneous tissue liquid generate electrochemical reaction, are converted into electric signals and are provided for the user through being converted into blood glucose values.

The triggering structure of the existing CGM product is generally a button structure arranged on the side wall of the shell, and when the CGM product is used, a user needs to hold the shell by hand and then press the button inwards to finish triggering operation. However, the direction of force applied by the fingers of the user holding the shell is consistent with the direction of force applied by the trigger button, and the force is directed towards the inside of the shell along the radial direction of the shell, so when the user holds the shell with larger holding force, especially when the user uses the shell, the user has a certain fear, and a larger risk of false touch exists, namely, the user carelessly presses the trigger button to cause the monitoring device to be triggered, and then when the user does not finish preparation, the puncture needle in the monitoring device completes the implantation and needle withdrawal actions, and the CGM product is mostly a disposable product, namely, the puncture needle cannot be reused after performing one implantation action, so the false triggering operation directly leads to product rejection, and the use cost is greatly increased.

To the above-mentioned problem, although some manufacturers set up safety lock structures on CGM product to reduce the probability that the user triggers by mistake, these locking structures are comparatively complicated, and its assembly relation with other spare parts of product is comparatively accurate, therefore the cost of production manufacturing has clearly greatly increased to and the assembly degree of difficulty.

In addition, the setting of the safety lock requires additional operation to contact the safety lock before implantation operation, and the unlocking modes of the existing CGM products are various, so that the difficulty of the user in the hand is high, the user needs to spend a long time to be familiar with the using methods of different products, the learning cost is high, the using complexity and the operating difficulty are further increased, and the using experience is poor.

Disclosure of Invention

The present utility model provides a continuous blood glucose monitoring device to solve at least one of the above technical problems.

The technical scheme adopted by the utility model is as follows:

the utility model provides a continuous blood sugar monitoring device, includes the casing subassembly, arranges in the inside boosting core of casing subassembly and skin fixing base, the casing subassembly includes the shell, the one end of shell is equipped with the opening, the boosting core has relative the fixed locking state of shell and can be towards the triggering state of opening motion, the skin fixing base is fixed in the one end of boosting core towards the opening; the monitoring device further comprises a trigger piece, the side wall of the shell is provided with a guide slideway, the guide slideway extends towards the opening, the trigger piece can move towards the opening along the guide slideway and has a first position and a second position relative to the shell, so that the boosting core is switched from the locking state to the triggering state.

The trigger piece covers the guide slide when in the first position and the second position.

The monitoring device further includes a housing for closing the opening, the housing being capable of interfacing with the trigger to limit movement of the trigger.

The trigger piece surrounds the periphery of the shell component.

The shell assembly is provided with a matched wing, the matched wing is provided with a stop rib position, the trigger piece comprises a trigger part, the trigger part extends into the shell through the guide slideway, and the trigger part can squeeze the matched wing to enable the stop rib to move in a displacement mode, so that the boosting core is switched from the locking state to the trigger state.

The outer side of the matching wing is provided with a matching inclined plane, and the triggering part is matched with the matching inclined plane so as to squeeze the matching wing to move towards the inside of the shell.

The cooperation wing has stiff end and free end, the stiff end with the casing subassembly links firmly, the cooperation inclined plane with the backstop muscle position all set up in the free end.

The boosting core is provided with a matched rib position, the stop rib position is matched with the matched rib position in a stop mode so that the boosting core is in a locking state, and the stop rib position is dislocated with the matched rib position so that the boosting core is in a triggering state.

The housing assembly further includes an inner housing disposed within the outer housing, the mating wings being disposed within the inner housing.

The inner wall of the outer shell is provided with a clamping part, the outer wall of the inner shell is provided with a matching part, and the clamping part is clamped and fixed with the matching part.

The shell comprises an upper shell and a lower shell which are mutually buckled, the upper shell is provided with an upper slideway, the lower shell is provided with a lower slideway, and the upper slideway and the lower slideway are mutually matched to form the guide slideway.

The trigger is provided with a force application portion.

The monitoring device further comprises a puncture assembly fixed to the boosting core, the boosting core is provided with a distal end position and a proximal end position, the boosting core can drive the puncture assembly to move from the distal end position to the proximal end position relative to the shell assembly, the boosting core is provided with a limiting part used for limiting the puncture assembly, the shell assembly is provided with an unlocking structure, and when the boosting core moves to the proximal end position, the unlocking structure can release the limiting of the limiting part, so that the puncture assembly moves relative to the boosting core towards a direction deviating from the opening.

The monitoring device further comprises a connecting seat and a sensor, wherein the connecting seat is fixed on the boosting core, an installation position for installing the skin fixing seat is arranged in the connecting seat, a through hole is formed in the skin fixing seat, at least part of the sensor is contained in the puncture assembly, one end of the sensor is located inside the skin fixing seat, the other end of the sensor extends downwards through the through hole, the puncture assembly penetrates through the through hole, the connecting seat is provided with a limiting structure, and the limiting structure can at least limit the puncture assembly to move out of the through hole.

The monitoring device further comprises a housing, the housing closes the opening of the housing, and the housing is matched with the limiting structure so that the limiting structure is linked with the housing.

The boosting core is provided with a slide way for guiding the puncture assembly to assist and/or withdraw the needle, the limiting part comprises a stop protrusion arranged on the slide way, the puncture assembly is provided with an abutting wing, and the abutting wing abuts against the stop protrusion so as to limit the puncture assembly to move in a direction deviating from the opening.

The unlocking structure comprises an unlocking convex rib arranged on the shell component, and the unlocking convex rib can prop against the abutting wing so that the abutting wing moves and is separated from the stop protrusion.

By adopting the technical scheme, the utility model has the following beneficial effects:

1. compared with the mode of pressing a trigger button, the trigger piece is oriented to the opening, namely along the axis direction of the shell, and the hand of a user holds the shell, the force application directions of the fingers are inward along the radial direction of the shell, and the force application directions of the two actions are mutually perpendicular, so that the probability of mistakenly touching the trigger piece when the user holds the shell is greatly reduced, the risk of mistakenly triggering the monitoring device is reduced, the monitoring device can be effectively triggered and implantation is completed, and the use experience is improved.

In addition, the movement direction of the trigger piece faces the opening direction, so that the false touch preventing effect is further improved. Triggering can only be achieved when there is relative movement between the housing and the trigger member. Specifically, when the shell is abutted the opening on the skin of a patient, the shell is stopped by the skin, so that the shell cannot move towards the skin, and at the moment, a user can better operate the trigger piece to move relative to the shell, and the trigger operation is completed. When the open end of the shell does not prop against the skin, the user pushes the trigger piece to drive the shell to move together, at the moment, the user cannot apply force to the trigger piece, and relative movement between the trigger piece and the shell cannot be generated, so that the monitoring device cannot be triggered. Therefore, the movement direction of the trigger piece is designed to be consistent with the implantation direction of the boosting core, so that the trigger piece can obtain a certain false touch prevention function, and a safety lock is not required to be additionally arranged, so that the structure of the monitoring device is simplified, the cost is saved, the operation steps of a user during use are simplified, and the use experience is improved.

2. As a preferred embodiment of the utility model, the monitoring device further comprises a housing for closing off the opening, the housing being capable of interfacing with the trigger member to limit movement of the trigger member. When the monitoring device leaves the factory, the open end of the shell is provided with the housing, the opening of the shell is plugged, each part of the monitoring device is located in a cavity surrounded by the housing and the shell, the housing and the shell enclose a sterile environment, and the housing is isolated from the external environment, so that the inside is ensured to be clean. Meanwhile, the housing can also play a role in limiting movement of the trigger piece, so that the trigger piece cannot move towards the opening, namely cannot be triggered, thereby further improving the false touch prevention effect of the monitoring device, providing multiple protection for the trigger piece and ensuring that the trigger piece is triggered correctly. Before the use, the cover shell is taken down, the opening of the shell is opened, the opening can be abutted against the surface of the skin at the moment, implantation operation is carried out, and meanwhile, the cover shell loses the limit on the trigger piece, so that the trigger piece can be triggered normally to move towards the opening.

3. As a preferred embodiment of the utility model, the housing assembly is provided with a mating wing provided with a stop rib position, the trigger piece comprises a trigger part, the trigger part extends into the housing through the guide slideway, and the trigger part can press the mating wing to enable the stop rib to move in a displacement manner, so that the boosting core is switched from a locking state to a triggering state. When the trigger piece is in the first position, the matching wings are matched with the boosting core stop, so that the boosting core is limited in the original position, and cannot move towards the opening to perform implantation. When a user pushes the trigger piece to move to the second position, the trigger part extrudes the matched wings, the matched wings are extruded to deform, the stop rib positions are driven to move, the boosting core is avoided, at the moment, the stop rib positions lose the stop of the boosting core, the boosting core can perform implantation actions, and implantation is completed.

4. As a preferred embodiment of the present utility model, the monitoring device further comprises a puncture assembly fixed to the boosting core, the boosting core has a distal end position and a proximal end position, the boosting core can drive the puncture assembly to move from the distal end position to the proximal end position relative to the housing assembly, the boosting core is provided with a limiting part for limiting the puncture assembly, the housing assembly is provided with an unlocking structure, and when the boosting core moves to the proximal end position, the unlocking structure can release the limiting part to enable the puncture assembly to move relative to the boosting core towards a direction deviating from the opening. When the user triggers the implantation operation, the boosting core and the puncture assembly synchronously move to move from a distal end position to a proximal end position together, and at the moment, the puncture assembly punctures the skin of the patient, and the sensor contact pin in the skin fixing seat is implanted under the skin of the patient. The limiting part limits the puncture assembly to keep synchronous movement with the boosting core, and when implantation is completed, the puncture assembly is triggered by the unlocking structure, so that the limitation of the limiting part is relieved, and the puncture assembly can move relative to the boosting core. At this time, the boosting core still stays at the proximal end position, and the puncture assembly is independently retracted to complete the needle withdrawing operation. The unlocking structure is located at the proximal end position and located on the motion path of the puncture assembly, so that when the boosting core carries the puncture assembly to move to the proximal end position together, the unlocking structure can automatically trigger and unlock the puncture assembly, the needle withdrawing operation is not needed to be additionally carried out by a user, the implantation and the needle withdrawing steps are automatically completed in one step, the operation steps of the user are simplified, the operation difficulty is reduced, and the use experience is greatly improved.

5. As a preferred embodiment of the utility model, the monitoring device further comprises a connecting seat and a sensor, wherein the connecting seat is fixed on the boosting core, the inside of the connecting seat is provided with a mounting position for mounting the skin fixing seat, the skin fixing seat is provided with a through hole, at least part of the sensor is accommodated in the puncture assembly, one end of the sensor is positioned in the skin fixing seat, the other end of the sensor extends downwards through the through hole, the puncture assembly passes through the through hole, the connecting seat is provided with a limiting structure, and the limiting structure at least can limit the puncture assembly to move out of the through hole. The limiting structure can limit the puncture assembly, so that the puncture assembly is stably connected with the monitoring device, and the risk of separation between the puncture assembly and the monitoring device is reduced. In addition, the limiting structure can limit the movement of the puncture assembly, so that the puncture assembly is prevented from being touched by mistake, the puncture assembly cannot move under the limitation of the limiting assembly, implantation and needle withdrawal actions cannot be carried out, the working reliability of the monitoring device is improved, and the cost is saved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a schematic diagram of a monitoring device according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of the monitoring device of FIG. 1, wherein the lancing assembly and the skin securing seat are not shown;

FIG. 3 is a cross-sectional view of the monitoring device of FIG. 2 from another perspective;

FIG. 4 is a schematic view of the structure of the housing according to an embodiment of the present utility model;

FIG. 5 is a schematic view of the internal structure of the housing of FIG. 4;

FIG. 6 is a schematic view of a trigger according to an embodiment of the present utility model;

FIG. 7 is a schematic view of the structure of the inner shell according to an embodiment of the present utility model;

FIG. 8 is a cross-sectional view of the inner housing of FIG. 7;

FIG. 9 is a schematic structural view of a boosting core according to an embodiment of the present utility model;

FIG. 10 is an elevation view of the boost core of FIG. 9;

FIG. 11 is a cross-sectional view of the boost core of FIG. 9;

fig. 12 is a schematic view of the structure of the needle holder according to an embodiment of the present utility model;

fig. 13 is a cross-sectional view of the hub of fig. 12;

FIG. 14 is a schematic view of a monitoring device according to another embodiment of the present utility model;

FIG. 15 is a schematic view of the internal part area of the monitoring device according to an embodiment of the present utility model;

FIG. 16 is a cross-sectional view of the monitoring device of FIG. 15;

FIG. 17 is a schematic view of a needle body according to an embodiment of the present utility model;

FIG. 18 is a schematic view showing an internal structure of a monitoring device according to an embodiment of the present utility model;

FIG. 19 is a schematic view of a skin fixing base according to an embodiment of the present utility model;

fig. 20 is a schematic view of the internal structure of the skin fixing base in fig. 19.

Wherein:

1, a shell; 11 guiding a slideway; 12 clamping the bulge; 13 limiting buckles;

2 boosting the core; a 21 tension spring; 22 first positioning posts; 23 boosting springs; 24, matching with a rib position; 25 slides; 26 stop projections; 261 guide channel; a 27 card interface;

3, triggering a piece; 31 a force application part; a 32 trigger part;

4 an inner shell; 41 second positioning columns; 42 mating wings; 421 mating with the ramp; 422 stop the rib position; 43 clamping grooves; 44 unlocking the ribs;

5, a puncture assembly; a 51 needle body; 511 card slots; 52 needle stand; 521 guiding the cantilever; 522 abutting the wing; 523 guide rib position; 524 jaws;

6, a housing; 61 sealing the chamber;

7, connecting a seat; 71 a limit structure; 711 limiting holes; 72 clamping the rib position;

8 skin fixing seat; 81 through holes; 82 sensor.

Detailed Description

In order to more clearly illustrate the general inventive concept, a detailed description is given below by way of example with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced in other ways than those described herein, and therefore the scope of the present utility model is not limited to the specific embodiments disclosed below.

In addition, in the description of the present utility model, it should be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, the descriptions of the terms "implementation," "embodiment," "one embodiment," "example," or "particular example" and the like mean that a particular 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 utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

As shown in fig. 1 to 20, a continuous blood glucose monitoring device comprises a housing assembly, a boosting core 2 arranged in the housing assembly, and a skin fixing seat 8, wherein the housing assembly comprises a housing 1, one end of the housing 1 is provided with an opening, the boosting core 2 has a locking state fixed relative to the housing 1 and a triggering state capable of moving towards the opening, the skin fixing seat 8 is fixed at one end of the boosting core 2, the monitoring device further comprises a triggering piece 3, a guide slideway 11 is arranged on the side wall of the housing 1, the guide slideway 11 extends towards the opening, and the triggering piece 3 can move towards the opening along the guide slideway 11 and has a first position and a second position relative to the housing 1, so that the boosting core 2 is switched from the locking state to the triggering state.

Preferably, as shown in fig. 1, the casing 1 is turned outwards at the opening, so as to increase the contact area between the end of the casing 1 and the skin, reduce the pressing feeling of the casing 1 on the skin, and improve the comfort of use.

Compared with the mode of pressing a trigger button, the trigger device has the advantages that the trigger device 3 faces to an opening, namely, the axis direction of the shell 1 is along, the hand of a user holds the shell 1, the force application directions of fingers are inwards along the radial direction of the shell 1, and the force application directions of two actions are mutually perpendicular, so that the probability of false triggering of the trigger device 3 when the user holds the shell 1 is greatly reduced, the risk of false triggering of the monitoring device is reduced, the monitoring device can be effectively triggered and implantation is completed, and the use experience is improved.

In addition, the movement direction of the trigger 3 is directed in the opening direction, so that the false touch preventing effect is further improved. Triggering can only be achieved when there is a relative movement between the housing 1 and the triggering member 3.

Specifically, when the opening of the housing 1 abuts against the skin of the patient, the housing 1 is stopped by the skin, so that the housing 1 cannot move towards the skin, and at this time, the user can better operate the trigger 3, so that the trigger can move relative to the housing 1, and the triggering operation is completed. When the open end of the casing 1 does not prop against the skin, the user pushes the trigger piece 3 to drive the casing 1 to move together, at this time, the user cannot apply force to the trigger piece 3, and the trigger piece 3 and the casing 1 cannot move relatively, so that the monitoring device cannot be triggered.

Therefore, the trigger piece 3 is designed to be consistent with the implantation direction of the boosting core 2 through the movement direction of the trigger piece 3, so that the trigger piece 3 can obtain a certain false touch prevention function, and a safety lock is not required to be additionally arranged, so that the structure of the monitoring device is simplified, the cost is saved, the operation steps of a user during use are simplified, and the use experience is improved.

It should be noted that the extending direction of the guide rail 11 is not particularly limited, and may be one of the following embodiments:

example 1: in the present embodiment, as shown in fig. 4, the guide chute 11 extends in the axial direction of the housing 1 so that the trigger 3 can move up and down in the axial direction of the housing 1. When the user operates, he needs to hold the trigger 3 and push it down.

Example 2: in the present embodiment, the guide chute 11 extends from the upper end to the lower end of the housing 1 in a curved manner. For example, the guide ramp 11 extends helically to enable the trigger 3 to rotate and move towards the opening. When the user operates the trigger 3, the trigger 3 needs to be rotated so as to rotate around the axis of the housing 1 and move toward the opening under the guidance of the spiral slideway.

It should be noted that, the skin fixing base 8 may be directly fixed to one end of the boosting core 2, or may be indirectly fixed to one end of the boosting core 2, for example, in one embodiment, as shown in fig. 18, the monitoring device further includes a connection base 7, the connection base 7 is fixed to the boosting core 2, an installation position for installing the skin fixing base 8 is provided inside the connection base 7, and the skin fixing base 8 is fixed in the installation position, so that the skin fixing base 8 is fixed to one end of the boosting core 2 through the connection base 7.

As a preferred embodiment of the utility model, the trigger 3 is covered at the guide ramp 11 when in both the first and second positions. No matter what kind of position the trigger piece is in, all form the shielding to direction slide 11, avoided direction slide 11 to expose and caused the external defect on the one hand, influence monitoring devices's whole pleasing to the eye, on the other hand trigger piece 3 can also block impurity such as outside dust and get into inside shell 1 through direction slide 11, guarantee monitoring devices inside clean.

Preferably, as shown in fig. 14, the monitoring device further comprises a casing 6 for closing the opening, the casing 6 being able to interface with the trigger 3 to limit the movement of the trigger 3.

When the monitoring device leaves the factory, the opening end of the shell 1 is provided with the housing 6, the opening of the shell 1 is plugged, each part of the monitoring device is located in a cavity surrounded by the housing 6 and the shell 1, the housing 6 and the shell 1 enclose a sterile environment, and the sterile environment is isolated from the external environment, so that the inside is ensured to be clean.

Meanwhile, the housing 6 can also play a role in limiting the movement of the trigger piece 3, so that the trigger piece 3 cannot move towards the opening, namely cannot be triggered, thereby further improving the false touch prevention effect of the monitoring device, providing multiple protection for the trigger piece 3 and ensuring that the trigger piece 3 is triggered correctly. Before the user uses, take down the housing 6, the opening of shell 1 opens, can support the opening on the skin surface at this moment, carries out implantation operation, simultaneously, the housing 6 loses the restriction to trigger piece 3, makes trigger piece 3 can normally be triggered and towards the opening motion.

The present utility model is not limited to the manner of removing the cover 6, and it is possible to remove the cover 6 by separating it from the housing 1 by a rotational movement, or to remove the cover 6 by pulling out the cover 6 by applying a force along the axis of the housing 1, and the like, and is not particularly limited herein.

In one embodiment, as shown in fig. 1, the trigger 3 is wrapped around the outer periphery of the housing assembly.

The trigger piece 3 surrounds the shell assembly, so that the appearance integrity of the monitoring device is improved, the appearance is attractive, the use of a user is convenient, and the user can use the hand ring to hold the trigger piece 3 during operation, so that the operation handfeel is improved.

It can be understood that trigger piece 3 encircles the casing subassembly, still makes the user hold the shell subassembly, and the finger is in trigger piece 3 outside, and then when the user does not support the opening on skin, need hold monitoring devices with great holding power, trigger piece 3 inwards slightly deforms and then offsets with the casing subassembly under the holding power effect this moment, has increased the frictional force between the two, makes the difficult relative motion that takes place between the two more, and then makes the user more difficult to trigger piece 3, improves and prevents the mistake and touches the effect.

Of course, the triggering piece 3 may have other structures, for example, the triggering piece 3 is symmetrically disposed at two sides of the housing assembly, and when in use, the user uses the thumb and other four fingers to respectively correspond to the triggering piece 3 at one side, and the two sides simultaneously press the triggering piece 3 downwards with force to realize triggering.

As a preferred embodiment of the present utility model, as shown in fig. 3, 7 and 8, the housing assembly is provided with a mating wing 42, the mating wing 42 is provided with a stop rib 422, the trigger 3 includes a trigger portion 32, the trigger portion 32 extends into the housing 1 through the guide slideway 11, and the trigger portion 32 can press the mating wing 42 to move the stop rib 422, so that the boosting core 2 is switched from the locking state to the triggering state.

Further, as shown in fig. 3, 9 and 10, the booster core 2 has a mating rib position 24, and the stop rib position 422 and the mating rib position 24 are in stop fit so that the booster core 2 is in a locked state, and the stop rib position 422 and the mating rib position 24 are offset so that the booster core 2 is in a triggered state.

When the trigger 3 is in the first position, the matching wings 42 are matched with the stop of the boosting core 2, so that the boosting core 2 is limited in the original position, and cannot move towards the opening to perform implantation. When the user pushes the trigger piece 3 to move to the second position, the trigger part 3 extrudes the matched wings 42, the matched wings 42 are extruded to deform, the stop rib positions 422 are driven to move, the boosting core 2 is avoided, at the moment, the stop rib positions 422 lose the stop of the boosting core 2, the boosting core 2 can perform implantation actions, and implantation is completed.

It will be appreciated that as shown in fig. 3, the engagement wing 42 is located below the trigger portion 32 and in the path of movement of the trigger portion 32, and as the user presses down on the trigger 3, the trigger portion 32 moves downwardly therewith and contacts the engagement wing 42 to squeeze it into movement.

Further, as shown in fig. 3 and 7, the outer side of the engaging wing 42 has an engaging slope 421, and the trigger portion 32 engages with the engaging slope 421 to press the engaging wing 42 toward the inside of the housing 1.

The setting of cooperation inclined plane 421 for the contact of trigger part 32 and cooperation wing 42 is softer smooth and easy, has both guaranteed the effective trigger of trigger part 32 to cooperation wing 42, has improved user's operation feel again, reduces the jamming sense in the operation process, improves the use experience.

Preferably, as shown in fig. 6, a side of the triggering portion 32 facing the engaging wing 42 is also provided with a slope structure, so that the triggering portion and the engaging wing contact and press along the slope, thereby further improving the smoothness of the engagement.

As shown in fig. 3, the engaging wings 42 are disposed at two sides of the boosting core 2, that is, the stop rib portions 422 at two sides can form stops with the boosting core 2, so as to improve the stability of the boosting core 2. Similarly, the triggering parts 32 are correspondingly arranged at two sides, and under the movement of the triggering piece 3, the triggering parts 32 at two sides simultaneously squeeze the matching wings 42 at two sides, so that the two sides of the boosting core 2 can be unlocked simultaneously.

The engaging wing 42 has a fixed end and a free end, the fixed end is fixedly connected with the housing assembly, and the engaging inclined surface 421 and the stop rib 422 are both disposed at the free end.

The cooperation wing 42 is the cantilever structure that one end is fixed one end freely, therefore the cooperation wing 42 can make the free end swing around the stiff end under the extrusion effect to have better elastic deformation's ability, cooperation inclined plane 421 and backstop muscle position 422 all set up in the free end, consequently the cooperation wing 42 can take place great degree elastic deformation when receiving the extrusion, thereby makes the reaction of cooperation wing 42 more sensitive, and the unblock triggers more reliably.

In a preferred embodiment, as shown in fig. 3 and 7, the housing assembly further comprises an inner housing 4 disposed within the outer housing 1, and mating wings 42 are provided on the inner housing 4.

Further, the inner wall of the outer shell 1 is provided with a clamping part, the outer wall of the inner shell 4 is provided with a matching part, and the clamping part and the matching part are clamped and fixed.

Specifically, as shown in fig. 5 and 7, the clamping portion includes a clamping protrusion 12, the matching portion is a clamping groove 43, and the outer shell 1 and the inner shell 4 are fixed by using the matching of the clamping protrusion 12 and the clamping groove 43. Still further, as shown in fig. 5, the clamping portion further includes a limiting buckle 13 disposed on an inner wall of the outer shell 1, and the limiting buckle 13 is matched with an outer wall of the inner shell 4, so that the connection between the outer shell 1 and the inner shell 4 is more stable. Of course, the outer shell 1 and the inner shell 4 may be fixed by other means, and are not particularly limited herein.

In a preferred embodiment, the housing 1 comprises an upper shell and a lower shell which are fastened to each other, wherein the upper shell is provided with an upper slide rail, the lower shell is provided with a lower slide rail, and the upper slide rail and the lower slide rail are mutually matched to form a guiding slide rail 11.

The guide slide 11 is formed by matching an upper shell with a lower shell, so that the guide slide 11 is conveniently matched with the trigger piece 3, when the guide slide 11 is assembled, the matched sliding block of the trigger piece 3 can be firstly placed in the guide slide 11, then the upper shell and the lower shell are in butt joint fixation, and the guide slide 11 is closed.

Preferably, as shown in fig. 6, the trigger 3 is provided with a biasing portion 31.

Specifically, as shown in fig. 6, the trigger piece 3 is turned outwards towards one end of the opening to form a turned-out edge, so that a user can press the trigger piece 3 by means of the turned-out edge, the force application of the user is facilitated, slipping between the hand of the user and the trigger piece 3 is reduced, and the problem that the trigger piece 3 cannot be effectively operated is solved.

In a preferred embodiment of the present utility model, as shown in fig. 9, 15 and 18, the monitoring device further comprises a puncture assembly 5 fixed to the boosting core 2, the boosting core 2 has a distal end position and a proximal end position, the boosting core 2 can drive the puncture assembly 5 to move from the distal end position to the proximal end position relative to the housing assembly, the boosting core 2 is provided with a limiting part for limiting the puncture assembly 5, the housing assembly is provided with an unlocking structure, and when the boosting core 2 moves to the proximal end position, the unlocking structure can release the limiting of the limiting part so as to enable the puncture assembly 5 to move relative to the boosting core 2 towards a direction deviating from the opening.

When the user triggers the implantation operation, the boosting core 2 and the puncture assembly 5 synchronously move from the distal end position to the proximal end position, at the moment, the puncture assembly 5 punctures the skin of the patient, and the sensor contact pin in the skin fixing seat 8 is implanted under the skin of the patient. The limiting part limits the puncture assembly 5 to keep synchronous movement with the boosting core 2, and when implantation is completed, the puncture assembly 5 is triggered by the unlocking structure, so that the limitation of the limiting part is relieved, and the puncture assembly 5 can move relative to the boosting core 2. At this time, the boosting core 2 still stays at the proximal end position, and the puncture assembly 5 is independently retracted, so as to complete the needle withdrawing operation. The unlocking structure is positioned at the proximal end position and is positioned on the motion path of the puncture assembly 5, so that when the boosting core 2 carries the puncture assembly 5 to move to the proximal end position together, the unlocking structure can automatically realize the triggering unlocking of the puncture assembly 5, the needle withdrawing operation is not needed to be additionally carried out by a user, the continuous operation of the implantation and needle withdrawing steps is automatically completed in one step, the operation steps of the user are simplified, the operation difficulty is reduced, and the use experience is greatly improved.

It will be appreciated that in use, the opening of the housing 1 is directed towards the skin, so that the distal position refers to the side remote from the skin and the proximal position refers to the side close to the skin. The booster core 2 and the puncture assembly 5 move from the distal position to the proximal position, and thus perform a needle assist (implantation) operation, and the puncture assembly 5 moves from the proximal position to the distal position, and thus perform a needle withdrawal operation.

Further, as shown in fig. 9, 11 and 12, the boosting core 2 is provided with a slide 25 for guiding the puncture assembly 5 to assist and/or withdraw the needle, the limiting part comprises a stop protrusion 26 arranged on the slide 25, the puncture assembly 5 is provided with an abutting wing 522, and the abutting wing 522 abuts against the stop protrusion 26 so as to limit the puncture assembly 5 to move in a direction deviating from the opening.

The slideway 25 can play a role in guiding the movement of the puncture assembly 5, and the slideway 25 extends along the direction of needle assistance and needle withdrawal, so that the relative movement between the puncture assembly 5 and the boosting core 2 is limited to be carried out along the direction, and the reliability of the implantation and needle withdrawal processes is improved. The stop protrusion 26 is disposed on the slideway 25, the abutment wing 522 of the puncture assembly 5 is stopped by the stop protrusion 26, the puncture assembly 5 is limited at the proximal end position, and when the unlocking structure presses the abutment wing 522 to be staggered with the stop protrusion 26, the stop protrusion 26 loses the stop of the abutment wing 522, so that the puncture assembly 5 can independently move distally.

Further, as shown in fig. 11, the stopper projection 26 divides the slide 25 into two sections, wherein the upper section constitutes the needle withdrawal stroke of the puncture assembly 5.

Further, as shown in fig. 11, two stop protrusions 26 are provided on both sides of the slideway 25, a guide channel 261 is provided between the stop protrusions 26, and the abutment wing 522 is further provided with a guide rib position 523, wherein the guide rib position 523 is located in the guide channel 261 and can move along the guide channel 261.

The guide rib 523 and the guide channel 261 are matched in shape, so that after the guide rib 523 and the guide channel 261 are matched, the guide function can be further realized on the movement of the puncture assembly 5, and the reliability of the needle withdrawing movement of the puncture assembly 5 is improved.

Specifically, as shown in fig. 2, 12, 17 and 18, the puncture assembly 5 includes a needle body 51, a needle seat 52, a tension spring 21, and a guiding cantilever 521 disposed on the needle seat 52 and engaged with the slideway 25, when the puncture assembly 5 moves to the proximal position, the unlocking structure presses the free end of the guiding cantilever 521 to deform the free end, so that the position of the abutment wing 522 is staggered from the position of the abutment protrusion 26, and the abutment protrusion 26 loses the abutment effect on the abutment wing 522, thereby triggering the needle withdrawing movement.

As shown in fig. 13, the needle holder 52 is provided with a claw 524, and the needle body 51 is provided with a clamping groove 511, and the two cooperate to fix the needle holder 52 and the needle body 51.

One end of the tension spring 21 is fixed on the boosting core 2, the other end of the tension spring 21 is fixed on the needle seat 52, the tension spring 21 is in a stretching state in an initial state, and when the boosting core 2 and the puncture assembly 5 move together to a proximal end position to finish implantation, the limiting part is triggered by the unlocking structure, so that the limiting part loses a stop for the puncture assembly 5, and the needle seat 52 moves towards a distal end under the action of the tension spring 21 to finish needle withdrawal.

More specifically, as shown in fig. 2, 9 and 18, the monitoring device further includes a boost spring 23, one end of the boost spring 23 acts on the housing assembly, the other end acts on the boost core 2, and in the initial state, the boost spring 23 is in a compressed state, and when the user performs a triggering operation, the boost core 2 carries the puncture assembly 5 to move towards the proximal position under the action of the elasticity of the boost spring 23, so as to complete implantation.

As shown in fig. 8 and 9, the booster core 2 is provided with a first positioning column 22, the housing assembly is provided with a second positioning column 41, the first positioning column 22 and the second positioning column 41 are sleeved with each other, and the booster spring 23 is sleeved outside the first positioning column 22 and the second positioning column 41 or between the first positioning column 22 and the second positioning column 41.

Preferably, as shown in fig. 7 and 18, the unlocking structure includes an unlocking rib 44 provided on the housing assembly, and the unlocking rib 44 can abut against the abutment wing 522 to move the abutment wing 522 and disengage from the stop protrusion 26.

When the boosting core 2 and the puncture assembly 5 move to the moment, the abutting wings 522 collide with the unlocking ribs 44 under the action of the kinetic energy of the boosting core 2, and the unlocking ribs 44 extrude the abutting wings 522 to separate from the stop protrusions, so that unlocking is completed.

In a preferred embodiment of the present utility model, as shown in fig. 15, 16, 18, 19 and 20, the monitoring device further comprises a connection seat 7 and a sensor 82, the connection seat 7 is fixed on the boosting core 2, a mounting position for mounting the skin fixing seat 8 is provided in the connection seat 7, the skin fixing seat 8 is provided with a through hole 81, at least part of the sensor 82 is accommodated in the puncture assembly 5, one end of the sensor 82 is positioned in the skin fixing seat 8, the other end extends downwards through the through hole 81, the puncture assembly 5 passes through the through hole 81, the connection seat 7 is provided with a limiting structure 71, and the limiting structure 71 can at least limit the puncture assembly 5 from moving out of the through hole 81.

Preferably, the connecting seat 7 and the boosting core 2 are clamped and fixed. Specifically, as shown in fig. 9 and 15, the connection seat 7 is provided with a clamping rib 72, the boosting core 2 is correspondingly provided with a clamping interface 27, and the clamping rib 72 passes through the clamping interface 27 to be clamped and fixed with the boosting core 2.

The limiting structure 71 can limit the puncture assembly 5, so that the puncture assembly 5 is stably connected with the monitoring device, and the risk of detachment of the puncture assembly 5 and the monitoring device is reduced. In addition, the limiting structure 71 can limit the movement of the puncture assembly 5, so that the false touch of the puncture assembly 5 is prevented, the puncture assembly 5 cannot move and cannot perform implantation and needle withdrawal actions under the limit of the limiting structure 71, the working reliability of the monitoring device is improved, and the cost is saved.

Further, as shown in fig. 15, the limiting structure 71 includes a limiting hole 711, at least a portion of the puncture assembly 5 is accommodated in the limiting hole 711, the limiting hole 711 is provided with a first stopping structure, the puncture assembly 5 is provided with a second stopping structure, and the limiting structure 71 can rotate relative to the puncture assembly 5, so that the first stopping structure and the second stopping structure stop or are separated.

In one embodiment, as shown in fig. 15, the limiting hole 711 and the piercing assembly 5 are both in non-circular structures, the limiting hole 711 can rotate with the limiting structure 71 relative to the piercing assembly 5, when the limiting hole 711 rotates to a position overlapping with the piercing assembly 5, the limiting structure 71 is in an unlocked state, at this time, the limiting structure 71 loses a stop to the piercing assembly 5, and the piercing assembly 5 can pass out from the limiting hole 711. When the limiting structure 71 rotates to the position where the limiting hole 711 is dislocated from the puncture assembly 5, the limiting structure 71 is in a locking state, and the limiting structure 71 forms a stop for the puncture assembly 5, so that the puncture assembly cannot pass through the limiting hole 711.

In another embodiment, the first stop structure is a protruding structure disposed on the inner wall of the limiting hole 711, the outer wall of the puncture assembly 5 is correspondingly provided with a groove structure, when the two rotate to be coincident, the puncture assembly 5 is unlocked, and when the two rotate to be coincident, the puncture assembly 5 is locked.

Further, as shown in fig. 14 and 15, the monitoring device further includes a cover 6, the cover 6 closes the opening of the housing 1, and the cover 6 cooperates with the limiting structure 71 to enable the limiting structure 71 to be linked with the cover 6.

As shown in fig. 16, the housing 6 is closed with the opening before the monitoring device is used, and abuts against the bottom wall of the skin fixing seat 8 to form a sealed cavity 61, so that the contact pin of the sensor 82 and the puncture assembly 5 are in a closed sterile environment, and when the monitoring device is used, the housing 6 is detached in a rotating manner, and the contact pin of the sensor 82 and the needle body 51 are exposed at the moment, so that the implantation operation is convenient for a user. Meanwhile, in the process of disassembling the housing 6, the limiting structure 71 rotates synchronously, so that the puncture assembly 5 is unlocked and can move to perform implantation operation, synchronous unlocking of the housing 6 and the puncture assembly 5 is realized, unlocking of a plurality of parts is realized only by one-step operation, operation steps are simplified, complexity of product use is reduced, and use experience is greatly improved.

The utility model can be realized by adopting or referring to the prior art at the places which are not described in the utility model.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments.

The foregoing is merely exemplary of the present utility model and is not intended to limit the present utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are to be included in the scope of the claims of the present utility model.

Claims (17)

1. A continuous blood sugar monitoring device comprises a shell component, a boosting core arranged in the shell component and a skin fixing seat, wherein the shell component comprises a shell, one end of the shell is provided with an opening, the boosting core has a locking state fixed relative to the shell and a triggering state capable of moving towards the opening, and the continuous blood sugar monitoring device is characterized in that,

the skin fixing seat is fixed at one end of the boosting core, which faces the opening;

the monitoring device further comprises a trigger piece, the side wall of the shell is provided with a guide slideway, the guide slideway extends towards the opening, the trigger piece can move towards the opening along the guide slideway and has a first position and a second position relative to the shell, so that the boosting core is switched from the locking state to the triggering state.

2. The continuous blood glucose monitoring device of claim 1, wherein the device comprises a plurality of sensors,

the trigger piece covers the guide slide when in the first position and the second position.

3. The continuous blood glucose monitoring device of claim 1, wherein the device comprises a plurality of sensors,

the monitoring device further includes a housing for closing the opening, the housing being capable of interfacing with the trigger to limit movement of the trigger.

4. The continuous blood glucose monitoring device of claim 1, wherein the device comprises a plurality of sensors,

the trigger piece surrounds the periphery of the shell component.

5. The continuous blood glucose monitoring device of claim 1, wherein the device comprises a plurality of sensors,

the shell assembly is provided with a matched wing, the matched wing is provided with a stop rib position, the trigger piece comprises a trigger part, the trigger part extends into the shell through the guide slideway, and the trigger part can squeeze the matched wing to enable the stop rib to move in a displacement mode, so that the boosting core is switched from the locking state to the trigger state.

6. The continuous blood glucose monitoring device of claim 5,

the outer side of the matching wing is provided with a matching inclined plane, and the triggering part is matched with the matching inclined plane so as to squeeze the matching wing to move towards the inside of the shell.

7. The continuous blood glucose monitoring device of claim 5,

the cooperation wing has stiff end and free end, the stiff end with the casing subassembly links firmly, the cooperation inclined plane with the backstop muscle position all set up in the free end.

8. The continuous blood glucose monitoring device of claim 5,

the boosting core is provided with a matched rib position, the stop rib position is matched with the matched rib position in a stop mode so that the boosting core is in a locking state, and the stop rib position is dislocated with the matched rib position so that the boosting core is in a triggering state.

9. The continuous blood glucose monitoring device of claim 5,

the housing assembly further includes an inner housing disposed within the outer housing, the mating wings being disposed within the inner housing.

10. The continuous blood glucose monitoring device of claim 9, wherein the device comprises a plurality of sensors,

the inner wall of the outer shell is provided with a clamping part, the outer wall of the inner shell is provided with a matching part, and the clamping part is clamped and fixed with the matching part.

11. The continuous blood glucose monitoring device of claim 1, wherein the device comprises a plurality of sensors,

the shell comprises an upper shell and a lower shell which are mutually buckled, the upper shell is provided with an upper slideway, the lower shell is provided with a lower slideway, and the upper slideway and the lower slideway are mutually matched to form the guide slideway.

12. The continuous blood glucose monitoring device of claim 1, wherein the device comprises a plurality of sensors,

the trigger is provided with a force application portion.

13. The continuous blood glucose monitoring device of claim 1, wherein the device comprises a plurality of sensors,

the monitoring device further comprises a puncture assembly fixed to the boosting core, the boosting core is provided with a distal end position and a proximal end position, the boosting core can drive the puncture assembly to move from the distal end position to the proximal end position relative to the shell assembly, the boosting core is provided with a limiting part used for limiting the puncture assembly, the shell assembly is provided with an unlocking structure, and when the boosting core moves to the proximal end position, the unlocking structure can release the limiting of the limiting part, so that the puncture assembly moves relative to the boosting core towards a direction deviating from the opening.

14. The continuous blood glucose monitoring device of claim 13, wherein the device comprises a plurality of sensors,

the monitoring device further comprises a connecting seat and a sensor, wherein the connecting seat is fixed on the boosting core, an installation position for installing the skin fixing seat is arranged in the connecting seat, a through hole is formed in the skin fixing seat, at least part of the sensor is contained in the puncture assembly, one end of the sensor is located inside the skin fixing seat, the other end of the sensor extends downwards through the through hole, the puncture assembly penetrates through the through hole, the connecting seat is provided with a limiting structure, and the limiting structure can at least limit the puncture assembly to move out of the through hole.

15. The continuous blood glucose monitoring device of claim 14, wherein the device comprises a plurality of sensors,

the monitoring device further comprises a housing, the housing closes the opening of the housing, and the housing is matched with the limiting structure so that the limiting structure is linked with the housing.

16. The continuous blood glucose monitoring device of claim 13, wherein the device comprises a plurality of sensors,

the boosting core is provided with a slide way for guiding the puncture assembly to assist and/or withdraw the needle, the limiting part comprises a stop protrusion arranged on the slide way, the puncture assembly is provided with an abutting wing, and the abutting wing abuts against the stop protrusion so as to limit the puncture assembly to move in a direction deviating from the opening.

17. The continuous blood glucose monitoring device of claim 16, wherein the device comprises a plurality of sensors,

the unlocking structure comprises an unlocking convex rib arranged on the shell component, and the unlocking convex rib can prop against the abutting wing so that the abutting wing moves and is separated from the stop protrusion.

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