CN219166412U - Continuous blood sugar monitoring device - Google Patents

Abstract

The utility model discloses a continuous blood sugar monitoring device, which comprises a shell component, a needle assisting component and a skin fixing seat, wherein the shell component comprises a shell, one end of the shell is provided with an opening, and the skin fixing seat is clamped and fixed at one end of the needle assisting component facing the opening; the monitoring device further comprises a trigger piece, the trigger piece is provided with a connecting end and an operating end, the connecting end is hinged with the shell so that the trigger piece is provided with an initial position and a needle assisting position, the trigger piece is further provided with a propping portion, and when the trigger piece moves from the initial position to the needle assisting position, the propping portion can push the needle assisting assembly so that the needle assisting assembly moves from the first distal end position to the first proximal end position. The trigger piece can rotate relative to the shell to realize the switching between an initial position and a needle assisting position. Not only improves the operation hand feeling, but also saves more labor when the trigger piece is operated. In addition, the trigger has a more pronounced visual effect, and a user can consciously avoid the finger from the trigger while holding the housing, thereby reducing the probability of false triggering.

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, this triggering operation has a number of inconveniences in actual use. When a user presses the button, the internal stop structure and the puncture needle assembly are required to be misplaced, and the puncture needle assembly is in an energy storage state under the action of the pushing piece, so that a large extrusion force is formed on the stop structure, the user needs to press the button with a large force, most of the users operate with one hand, so that force application is difficult, and the situation that triggering is not in place exists.

In addition, when the user holds the housing, the direction of the force applied by the finger is consistent with the direction of the trigger button, so that false triggering is extremely easy to occur, the implantation action is triggered by the user under the condition of not being completely prepared, and implantation failure is caused.

Moreover, the button is pressed through the mode of inward swing deformation mostly, and the state of button can't be clearly observed to this in-process, and the feedback in the sense of touch can't be obtained to the in-process that triggers simultaneously yet, therefore user and medical personnel can't carry out better judgement to implantation process, use experience is not good enough.

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 shell subassembly, arranges in the help needle subassembly in the shell subassembly to and skin fixing base, the shell subassembly includes the shell, the one end of shell is equipped with the opening, skin fixing base joint is fixed in help needle subassembly towards the one end of opening; the monitoring device further comprises a trigger piece, the trigger piece is provided with a connecting end and an operating end, the connecting end is hinged with the shell so that the trigger piece is provided with an initial position and a needle assisting position, the trigger piece is further provided with a propping portion, and when the trigger piece moves from the initial position to the needle assisting position, the propping portion can push the needle assisting assembly to enable the needle assisting assembly to move from a first distal end position to a first proximal end position.

The trigger piece is connected with the top end of the shell, and when the trigger piece is positioned at the needle assisting position, the trigger piece is buckled on the upper surface of the shell.

The angle between the initial position of the trigger piece and the needle assisting position is 30-60 degrees.

The top of helping needle subassembly is equipped with the location slide, support the top and have the reference column, when the operation end is around the link rotates, the reference column can slide in the location slide.

The locating slide way transversely extends to have an initial end and a trigger end, a limiting rib is further arranged in the locating slide way, and the limiting rib can be matched with the locating column stop to limit the locating column to the initial end.

The top of helping needle subassembly is provided with the location muscle, the location muscle with help the surface cooperation of needle subassembly forms the location slide, the location muscle is equipped with dodges the breach, so that the reference column can be followed dodge the breach gets into in the location slide.

The needle assisting assembly comprises a transmission piece and a needle assisting unit which are connected.

One of the outer wall of the transmission piece and the inner wall of the shell is provided with a guide chute extending towards the opening, and the other one of the outer wall of the transmission piece and the inner wall of the shell is provided with a guide protrusion matched with the guide chute.

The transmission piece is provided with a first clamping part, and the needle assisting unit is provided with a second clamping part matched with the first clamping part, so that the transmission piece and the needle assisting unit are clamped and fixed.

The needle assisting assembly comprises a pushing piece and a puncture piece arranged in the pushing piece, the puncture piece can move relative to the pushing piece to be provided with a second proximal end position and a second distal end position, the pushing piece is provided with a limiting structure for limiting the puncture piece to be located at the second proximal end position, the shell assembly is provided with an unlocking structure, and when the pushing piece moves to the opening, the unlocking structure can release the limiting of the limiting structure so that the puncture piece can move to the second distal end position.

The pushing piece is provided with a guide part, a guide channel is arranged in the guide part, the puncture piece is arranged in the guide channel, the limiting structure comprises a butt wing arranged on the guide part, the butt wing is provided with a stop protrusion protruding towards the inside of the guide channel, and the stop protrusion is limited with the puncture piece stop to limit the puncture piece to move towards the second distal end position.

The puncture piece is provided with a matching plane, and the stop protrusion is in abutting matching with the matching plane.

The unlocking structure comprises an unlocking convex rib, and the unlocking convex rib can abut against the abutting wing to enable the stop protrusion to move and separate from the puncture piece.

The shell component is provided with a slide way, the abutting wing is positioned in the slide way and moves along the slide way, and the unlocking convex rib is positioned at one end of the slide way.

The skin fixing seat comprises a base, a sensor and a sensor electronic unit, wherein the sensor is fixed on the base, and the sensor electronic unit is detachably connected with the base.

The base is provided with first joint muscle position along self circumference, the sensor electronic unit corresponds and is provided with second joint muscle position, the base has the installation position that is used for installing the sensor, the sensor electronic unit have with the location structure of installation position shape adaptation.

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

1. the connecting end of the trigger piece is hinged with the shell, so that the trigger piece can rotate relative to the shell to realize the switching between the initial position and the auxiliary needle position, namely, the trigger piece can realize the triggering of the monitoring device through rotation. Compared with the mode of pressing the button, the operation hand feeling is improved by means of the hinged shaft for transmission, and the distance between the operation end and the connection end is long, so that the length of the force arm is long, and the user can operate the trigger piece more easily and more easily.

In addition, the trigger piece is connected with the shell in a hinged mode, so that the trigger piece can obtain a more remarkable visual effect, and a user can consciously avoid fingers from the trigger piece when holding the shell, so that the probability of false triggering caused by false triggering of the trigger piece when holding the monitoring device is reduced.

Moreover, at trigger piece pivoted in-process, user and medical personnel can see the state of trigger piece in real time to learn the implantation state of inside helping needle subassembly, be convenient for carry out accurate accuse to implantation process, improve and use experience.

2. As a preferred embodiment of the utility model, the trigger piece is connected with the top end of the shell, and when the trigger piece is positioned at the needle assisting position, the trigger piece is buckled on the upper surface of the shell. The trigger piece is located the shell top, and the user need press the operating end towards the below, makes the trigger piece rotate and accomplishes the trigger, consequently the direction of motion of trigger piece is inconsistent with the application of force direction that the user held the shell to greatly reduced when the user held the shell, the probability of touching the trigger piece by mistake. In addition, after the trigger is completed, the trigger piece is buckled with the upper surface of the shell, so that the whole volume is saved, the subsequent centralized processing is convenient, the user is obviously prompted, the use state of the CGM product can be obtained by observing the position state of the trigger piece, and when the trigger piece is kept at the needle assisting position, the monitoring device is indicated to be used completely and cannot be used again.

3. As a preferred embodiment of the utility model, the top end of the auxiliary needle component is provided with a positioning slide way, the propping part is provided with a positioning column, and the positioning column can slide in the positioning slide way when the operation end rotates around the connection end. The positioning slide way can limit the positioning column, the movement of the positioning column is limited in the positioning slide way, when the trigger piece rotates around the hinge shaft, the positioning column not only forms pushing force towards the opening to the auxiliary needle assembly, so that the auxiliary needle assembly moves, but also transversely slides along the positioning slide way, the movement of the trigger piece is more reliable, the trigger piece can move along a preset path, and the operation hand feeling of a user is more stable.

4. As a preferred embodiment of the utility model, the positioning slide rail transversely extends to have an initial end and a trigger end, and a limiting rib is further arranged in the positioning slide rail and can be matched with the positioning column stop so as to limit the positioning column to the initial end. The locating column is limited at the initial end by the locating rib and is matched with the locating column stop, so that a user can not easily trigger the trigger piece to rotate when pressing the trigger piece, but rather, larger force needs to be applied, so that the locating column passes over the locating rib and can slide in the locating slideway, the operation difficulty of the trigger piece is properly increased, and the false touch prevention effect of the trigger piece is further improved.

5. As a preferred embodiment of the utility model, the needle assisting assembly comprises a pushing member and a puncture member arranged in the pushing member, the puncture member can move relative to the pushing member to have a second proximal end position and a second distal end position, the pushing member is provided with a limiting structure for limiting the puncture member to the second proximal end position, the housing assembly is provided with an unlocking structure, and when the pushing member moves to the opening, the unlocking structure can release the limiting of the limiting structure so as to enable the puncture member to move to the distal end. When the user triggers the implantation operation, the pushing piece and the puncturing piece synchronously move to move from the first distal end position to the first proximal end position together, at the moment, the puncturing piece 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 structure limits the puncture member to enable the puncture member to move synchronously with the pushing member, when implantation is completed, the puncture member is located at the first proximal end position, and the puncture member is triggered by the unlocking structure, so that the limitation of the limiting structure is relieved, and the puncture member can move relative to the pushing member. At this time, the pushing member still stays at the first proximal end position, and the puncture member alone retracts to the second distal end position, so that the needle withdrawing operation is completed. The unlocking structure is located at the first proximal end position and located on the movement path of the puncture member, so that when the pushing member carries the puncture member to move to the first proximal end position together, the unlocking structure can automatically trigger and unlock the puncture member, 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.

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 an exploded view of the structure of a monitoring device according to one embodiment of the present utility model;

FIG. 2 is a cross-sectional view of the monitoring device of FIG. 1;

FIG. 3 is a schematic view of a trigger according to an embodiment of the present utility model;

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 diagram of a driving member according to an embodiment of the present utility model;

FIG. 6 is a schematic view of another side of the driving member of FIG. 5;

FIG. 7 is a schematic view illustrating a structure of a pushing member according to an embodiment of the present utility model;

FIG. 8 is a schematic view of a trigger shield according to an embodiment of the present utility model;

FIG. 9 is a schematic diagram of a skin fixing base according to an embodiment of the present utility model;

FIG. 10 is a schematic view of the base of FIG. 9;

FIG. 11 is a schematic diagram of the sensor electronics unit of FIG. 9;

FIG. 12 is a cross-sectional view of a piercing member according to an embodiment of the utility model;

FIG. 13 is a schematic view of the needle of FIG. 12;

fig. 14 is a schematic view of the structure of the hub of fig. 12.

Wherein:

1, a shell; 11, passing through the mouth; 12 guide protrusions; 13 a hinging seat;

2, a needle assisting component; 21 a transmission member; 211 positioning a slideway; 212 positioning ribs; 213 limit ribs; 214 avoid the gap; 215 guide runners; 216 initial end; 217 trigger; 218 a first clamping portion; 22 pushing members; 221 guide portions; 2211 guide the passage; 2212 abuts against the wing; 2213 stop the bump; 2214 reinforcing ribs; 2215 guide rib positions; 222 a second clamping portion; 223 first snap-in structure; 2231 guide surface; 23 punctures; a 231 needle body; 232 needle stand; 2321 mating planes; 2322 guide slots;

3, triggering a piece; 31 against the top; 311 positioning columns; 32 connection ends; 321 an articulated arm; 322 hinge shaft; 33 an operating end;

4, triggering a hood; 41 contact portions; 42 slides; 43 unlocking the ribs; 44 a second clamping structure; 45 is matched with the chute;

5 skin fixing seat; a 51 base; 511 mounting locations; 512 first clamping rib positions; 52 sensors; 53 sensor electronics; 531 second clamping rib positions; 532 positioning structure;

and 6, a tension spring.

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 14, a continuous blood glucose monitoring device comprises a housing assembly, a needle assisting assembly 2 arranged in the housing assembly, and a skin fixing seat 5, wherein the housing assembly comprises a housing 1, one end of the housing 1 is provided with an opening, the skin fixing seat 5 is clamped and fixed on one end of the needle assisting assembly 2 facing the opening, the monitoring device further comprises a trigger piece 3, the trigger piece 3 is provided with a connecting end 32 and an operating end 33, the connecting end 32 is hinged with the housing 1 so that the trigger piece 3 can be provided with an initial position and a needle assisting position, the trigger piece 3 is further provided with a propping part 31, and when the trigger piece 3 moves from the initial position to the needle assisting position, the propping part 31 can push the needle assisting assembly 2 so as to enable the needle assisting assembly 2 to move from a first distal position to a first proximal position.

It will be appreciated that the first distal position is the initial position of the needle assist assembly 2, and in use, the opening of the housing 1 is brought into close proximity with the patient's skin, and when the trigger 3 is triggered by the user, the needle assist assembly 2 performs an implantation action, i.e. moves towards the opening to a position where the piercing needle pierces the patient's skin, whereupon the needle assist assembly 2 reaches the first proximal position.

The connecting end 32 of the trigger piece is hinged with the shell 1, so that the trigger piece 3 can rotate relative to the shell 1 to realize the switching between an initial position and a needle assisting position, namely, the trigger piece 3 can realize the triggering of the monitoring device through rotation. Compared with the mode of pressing the button, the operation hand feeling is improved by means of the hinged shaft for transmission, and the distance between the operation end 33 and the connection end 32 is longer, so that the length of the arm of force is longer, and the user can operate the trigger piece 3 more easily and more easily.

In addition, trigger piece 3 is articulated with shell 1 to be connected, can make trigger piece 3 obtain more showing visual effect, and the user can consciously dodge the finger when holding shell 1 trigger piece 3 to the probability that the mistake when holding monitoring devices triggers piece 3 and leads to the mistake to trigger reduces.

Moreover, at trigger piece 3 pivoted in-process, user and medical personnel can see trigger piece 3's state in real time to learn the implantation state of inside helping needle subassembly 2, be convenient for carry out accurate accuse to implantation process, improve and use experience.

Preferably, the side of the skin fixing seat 5 facing the opening is provided with an adhesive layer, when the skin fixing seat moves along with the needle assisting assembly 2 towards the opening and contacts with the skin of a patient, the adhesive layer can be adhered to the skin, so that the clamping force between the skin fixing seat 5 and the needle assisting assembly 2 is not easy to be excessively large, the skin fixing seat 5 can be separated from the needle assisting assembly under the action of adhesive force, and the skin fixing seat 5 is adhered to the skin surface of the patient.

As shown in fig. 3 and 4, in a specific embodiment, the connection end 32 of the trigger member 3 is provided with an articulated arm 321, the housing 1 is provided with an articulated seat 13, the side wall of the articulated arm 321 protrudes to form an articulated shaft 322, and the articulated shaft 322 extends into a hole of the articulated seat 13 to complete articulation. Of course, the hinge shaft may be fixed to the hinge seat 13, and the hinge arm 321 is correspondingly provided with a hole for the hinge shaft to pass through. For another example, the hinge arm 321 and the hinge seat 13 are provided with openings, the hinge shaft is of an independent structure, and the hinge shaft passes through the openings of the hinge arm 321 and the hinge seat 13 to realize hinge fit.

It should be noted that, the manner in which the trigger 3 triggers the needle assisting assembly 2 is not particularly limited in the present utility model, in one embodiment, the housing assembly is provided with a limiting portion for limiting the needle assisting assembly 2, so as to limit the needle assisting assembly 2 at the first distal end position, and when the trigger 3 is operated by a user, the trigger 3 pushes the needle assisting assembly 2 to disengage from the cooperation with the limiting portion, and automatically moves towards the first proximal end position to complete the implantation. For example, a spring or like structure may be provided within the housing assembly to provide a pushing force on the needle assembly 2 toward the first proximal position.

In another embodiment, the needle assisting component 2 is a manually implanted structure, that is, when the user operates the trigger component 3, the trigger component 3 needs to be pressed all the time, so that the trigger component 3 continuously forms pushing force on the needle assisting component 2, and further the needle assisting component 2 is continuously pushed to move to the first proximal end position, the implantation process needs to be performed by the user to press the trigger component 3 all the time, and the pushing force of the trigger component 3 on the needle assisting component 2 and the movement speed of the needle assisting component 2 are completely controlled by the user.

In a preferred embodiment, as shown in fig. 1 and 2, the trigger 3 is connected to the top end of the housing 1, and when the trigger 3 is located at the needle assisting position, the trigger 3 is buckled to the upper surface of the housing 1.

The trigger 3 is located at the top end of the housing 1, and the user needs to press the operating end 33 downwards to rotate the trigger 3 to trigger, so that the movement direction of the trigger 3 is inconsistent with the force application direction of the user holding the housing 1 (the grip direction of the user's finger on the housing 1 is inward along the radial direction of the housing 1, and the force application direction of pressing the trigger 3 is along the axial direction of the housing 1), thereby greatly reducing the probability of false touching of the trigger 3 when the user holds the housing 1. In addition, after the triggering is finished, the triggering piece 3 is buckled on the upper surface of the shell 1, so that the whole volume is saved, the subsequent centralized processing is convenient, on the other hand, the obvious prompt is given to a user, the use state of the CGM product can be obtained by observing the position state of the triggering piece 3, and when the triggering piece 3 is kept at the needle assisting position, the monitoring device is indicated to be finished to be used and can not be reused.

Specifically, as shown in fig. 2, the connection end 32 is hinged to the top wall of the housing 1, and the operation end 33 is located at one side of the housing 1, so that the arm of force is further increased, and the user operation is more labor-saving. While an abutment 31 is provided between the operating end 33 and the connecting end 32 for pushing the needle assembly 2.

As shown in fig. 4, the top wall of the housing 1 is provided with a through opening 11, and the abutment portion 31 extends into the housing 1 from the through opening 11 to cooperate with the needle assisting component 2, and when the trigger member 3 is in the needle assisting position, the trigger member 3 covers the through opening 11.

Preferably, the angle between the initial position of the trigger 3 and the needle-aid position is 30-60 °.

The rotation motion of the trigger piece 3 is converted into the pushing force of the auxiliary needle assembly 2 along the axial direction of the shell 1, the trigger piece 3 only needs to rotate by a small angle, the auxiliary needle assembly 2 can complete implantation action, meanwhile, a user can operate more conveniently, and the trigger piece 3 can be pressed by only one-hand operation.

As a preferred embodiment of the present utility model, as shown in fig. 2 and 5, the top end of the needle assist assembly 2 is provided with a positioning slide 211, the abutment portion 31 is provided with a positioning post 311, and the positioning post 311 can slide in the positioning slide 211 when the operation end 33 rotates around the connection end 32.

The positioning slide way 211 can limit the positioning column 311, the movement of the positioning column 311 is limited in the positioning slide way 211, when the trigger piece 3 rotates around the hinge shaft, the positioning column 311 not only forms pushing force towards the opening to the auxiliary needle assembly 2, so that the auxiliary needle assembly 2 moves, but also transversely slides along the positioning slide way 211, the movement of the trigger piece 3 is more reliable, the trigger piece 3 can move along a preset path, and the operation hand feeling of a user is more stable.

Further, as shown in fig. 5, the positioning slide 211 extends transversely to have an initial end 216 and a trigger end 217, and a limiting rib 213 is further disposed in the positioning slide 211, where the limiting rib 213 can be in stop fit with the positioning post 311 to limit the positioning post 311 to the initial end 216.

The positioning column 311 is limited at the initial end 216 by the limiting rib 213 and is matched with the positioning column 311 in a stop mode, so that a user cannot easily trigger the trigger piece 3 to rotate when pressing the trigger piece 3, and a large force needs to be applied to enable the positioning column 311 to pass over the limiting rib 213 so as to slide in the positioning slide rail 211, the operation difficulty of the trigger piece 3 is properly increased, and the false touch preventing effect of the trigger piece 3 is further improved.

Preferably, as shown in fig. 3 and 5, the positioning column 311 is in a cylindrical structure, and a transitional cambered surface is also arranged on the surface of the limiting rib 213, so that the positioning column 311 is smoother when passing over the limiting rib 213, the jamming feeling of the positioning column 311 during movement is reduced, and the operation hand feeling is improved.

Taking fig. 2 and 5 as an example, the left end of the positioning slide 211 is the initial end 216, the right end is the trigger end 217, when the operating end 33 of the trigger 3 rotates downward, the end of the abutment 31, that is, the positioning post 311 slides to the right under the limitation of the positioning slide 211, and when the trigger 3 rotates to the needle-assisting position, the positioning post 311 moves to the trigger end 217.

Still further, as shown in fig. 5, a positioning rib 212 is disposed at the top end of the auxiliary needle assembly 2, the positioning rib 212 cooperates with the surface of the auxiliary needle assembly 2 to form a positioning slide 211, and the positioning rib 212 is provided with an avoidance gap 214, so that the positioning post 311 can enter the positioning slide 211 from the avoidance gap 214.

Preferably, the positioning rib 212 and the auxiliary needle assembly 2 are of a non-detachable structure, the arrangement of the avoidance notch 214 facilitates the assembly of the positioning column 311, the assembly difficulty of the positioning column 311 is reduced, and the assembly efficiency is improved.

As shown in fig. 5, the positioning ribs 212 are two and located at two sides of the positioning column 311, and a positioning slide way 211 is formed at two sides of the positioning column 311, and two ends of the positioning column 311 are respectively matched with the positioning slide way 211, so that the guiding effect on the positioning column 311 is improved.

As a preferred embodiment of the present utility model, as shown in fig. 1 and fig. 5 to fig. 7, the needle assisting assembly 2 includes a transmission member 21 and a needle assisting unit which are connected, and further, the assembly mode of the transmission member 21 and the needle assisting unit is not particularly limited in this embodiment, in a preferred embodiment, as shown in fig. 6 and fig. 7, the transmission member 21 has a first clamping portion 218, and the needle assisting unit has a second clamping portion 222 which is matched with the first clamping portion 218 so as to clamp and fix the transmission member 21 and the needle assisting unit. Of course, the transmission member 21 and the needle-aid unit may be fixedly connected by other means, such as magnetic fixation, screw connection, etc.

In another embodiment, the transmission member 21 and the needle assisting unit are integrally formed, so that the structure of the needle assisting assembly 2 is simplified, the assembly step is omitted, and the assembly efficiency is improved.

Specifically, as shown in fig. 7, the needle assisting unit is provided with at least two channels, the channel wall of each channel is provided with a second clamping part 222, and the transmission member 21 is provided with a first clamping part 218 corresponding to the second clamping part 222, so that the transmission member 21 and the needle assisting unit form clamping at a plurality of positions, the connection strength is improved, the coaxiality of the transmission member 21 and the needle assisting unit is ensured, and the inclination is avoided.

Preferably, as shown in fig. 4, 5 and 6, one of the outer wall of the transmission member 21 and the inner wall of the housing 1 is provided with a guide chute 215 extending toward the opening, and the other is provided with a guide projection 12 cooperating with the guide chute 215.

The guide chute 215 cooperates with the guide projection 12 to limit the movement of the driving member 21 and the needle assisting unit, so that the driving member and the needle assisting unit can only move along the axial direction of the housing 1, and the movement reliability of the needle assisting assembly 2 is improved.

As shown in fig. 4 and 5, the guide protrusion 12 is disposed on the inner wall of the housing 1, and the guide chute 215 is disposed on the outer wall of the transmission member 21, and the guide protrusion and the guide chute are in plug-in fit. Of course, the guide protrusion 12 may be disposed on the outer wall of the transmission member 21, and the guide chute 215 may be disposed on the inner wall of the housing 1, which is not particularly limited.

Preferably, as shown in fig. 5, the guide sliding grooves 215 are provided in plurality and uniformly spaced along the circumferential direction of the transmission member 21, and the guide protrusions 12 are provided in one-to-one correspondence with the guide sliding grooves 215.

In a preferred embodiment of the present utility model, as shown in fig. 2, the needle assist assembly 2 includes a pushing member 22 and a penetrating member 23 disposed inside the pushing member 22, the penetrating member 23 being movable relative to the pushing member 22 to have a second proximal end position and a second distal end position, the pushing member 22 being provided with a limiting structure for limiting the penetrating member 23 to the second proximal end position, the housing assembly being provided with an unlocking structure capable of releasing the limit of the limiting structure when the pushing member 22 is moved to the opening, so that the penetrating member 23 is moved to the second distal end position.

When the user triggers the implantation operation, the pushing member 22 and the puncturing member 23 move synchronously, and together move from the first distal position to the first proximal position, at which time the puncturing member 23 punctures the skin of the patient, and the sensor stylus inside the skin fixing seat 5 is implanted subcutaneously in the patient. The limiting structure limits the puncture member 23 so that the puncture member 23 and the pushing member 22 can synchronously move, and when implantation is completed, the puncture member 23 is positioned at the first proximal end position, and the limiting structure is triggered by the unlocking structure, so that the limitation of the limiting structure is relieved, and the puncture member 23 can move relative to the pushing member 22. At this point, the pusher 22 remains in the first proximal position and the penetrating member 23 alone retracts to the second distal position, completing the needle retraction operation.

The unlocking structure is located at the first proximal end position and located on the movement path of the puncture member 23, so that when the pushing member 22 carries the puncture member 23 to move to the first proximal end position together, the unlocking structure can automatically trigger and unlock the puncture member 23, 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.

Further, as shown in fig. 2, the needle assisting unit further includes a tension spring 6, one end of the tension spring 6 is fixed on the puncture member 23 to provide power required by needle withdrawing movement for the puncture member 23, and when the unlocking structure unlocks the limiting structure, the puncture member 23 moves to the second distal end position under the pulling of the tension spring 6 to complete needle withdrawing.

In a preferred embodiment, as shown in fig. 7, the pushing member 22 has a guiding portion 221, a guiding channel 2211 is formed in the guiding portion 221, the puncture member 23 is disposed in the guiding channel 2211, the limiting structure includes an abutting wing 2212 disposed in the guiding portion 221, the abutting wing 2212 has a stop protrusion 2213 protruding toward the inside of the guiding channel 2211, and the stop protrusion 2213 is stopped by the puncture member 23 to limit the movement of the puncture member 23 toward the second distal end position.

As shown in fig. 7, the guide part 221 is provided with an abutting wing 2212 extending outside the guide channel 2211, the abutting wing 2212 is internally provided with a stop protrusion 2213, and the stop protrusion 2213 is stopped by the puncture element 23 to form a limit stop for the puncture element 23.

As shown in fig. 7, one end of the abutting wing 2212 is fixed to the pushing member 22, and the other end is free, so that the abutting wing 2212 can deform under extrusion, and the free end swings around the fixed end, so that the abutting wing 2212 switches the limiting state of the puncture member 23 in a deformation manner. Likewise, stop projection 2213 is provided at the free end so that it can better follow the movement of abutment wings 2212 together.

In addition, as shown in fig. 7, the abutting wings 2212 are further provided with reinforcing ribs 2214 to improve the strength of the abutting wings 2212 and prevent the abutting wings 2212 from being broken due to large deformation when being pressed.

Further, as shown in fig. 12 and 14, the puncture element 23 has an engagement plane 2321, and the stop projection 2213 is in abutting engagement with the engagement plane 2321.

The stop protrusion 2213 is stopped by the matching plane 2321, so that the contact area of the stop protrusion 2213 and the matching plane 2321 is increased, the stop of the stop protrusion 2213 on the puncture member 23 is more stable and stable, the stability is improved, and the puncture member 23 is prevented from being triggered by mistake.

Preferably, as shown in fig. 12 to 14, the puncture member 23 includes a needle body 231 and a needle holder 232, the needle holder 232 serves as a carrier of the needle body 231, and the engagement plane 2321 is provided to the needle holder 232.

Further, as shown in fig. 7 and 14, the inner wall of the guiding channel 2211 is further provided with a guiding rib 2215, and the outer wall of the needle holder 232 is correspondingly provided with a guiding slot 2322, which cooperate to form a limit for the puncture member 23, so that the puncture member 23 can move axially along the housing 1. And prevents the lancet 23 from deflecting itself during withdrawal of the needle. Of course, the guiding rib 2215 may also be disposed on the needle holder 232, and the guiding slot 2322 is disposed on the inner wall of the guiding channel 2211, which is not limited herein.

As shown in fig. 8, the unlocking structure comprises an unlocking rib 43, the unlocking rib 43 being able to abut against the abutment wings 2212 to move the stop projection 2213 and disengage from the piercing member 23.

When the pushing member 22 and the puncturing member 23 move together to the first proximal position, the unlocking rib 43 presses the abutment wings 2212, so that the abutment wings 2212 deform and open to the outside of the guide channel 2211, and the stop protrusions 2213 on the inner side of the abutment wings synchronously open to the outside, so that the stop of the puncturing member 23 is lost, and at the moment, the puncturing member 23 can move upwards under the action of the tension spring 6 to complete needle withdrawal.

In a preferred embodiment, as shown in fig. 8, the housing assembly is provided with a slide 42, with the abutment wings 2212 positioned within the slide 42 and moving along the slide 42, with the unlocking rib 43 positioned at one end of the slide 42.

The slide 42 and the butt wing 2212 cooperate to further play the motion guiding effect to helping needle subassembly 2, and unblock bead 43 is located the one end of slide 42 simultaneously, can ensure that unblock structure is effectively triggered butt wing 2212, reduces the probability that leads to unblock structure inefficacy because of assembly error, improves two cooperation reliability.

Preferably, as shown in fig. 7 and 8, the two abutting wings 2212 are symmetrically disposed at two sides of the guiding channel 2211, and the two sliding ways 42 are correspondingly disposed at two sides of the guiding portion 221, so that the two abutting wings 2212 are located in the sliding way 42 and move along the sliding way 42.

In a preferred embodiment of the utility model, as shown in fig. 1 and 8, the housing assembly further comprises a trigger cap 4 arranged inside the housing 1, the trigger cap 4 being arranged at the end of the needle-aid assembly 2 facing the opening, the trigger cap 4 having a contact portion 41 for contacting the skin, the needle-aid assembly 2 being movable synchronously with the trigger cap 4 towards the opening and in relation to the trigger cap 4 when the contact portion 41 is stopped. The unlocking structure is arranged on the trigger cover 4.

The trigger cover 4 can be used as an anti-false touch component of the monitoring device, so that the false touch of the auxiliary needle assembly 2 is prevented, and the auxiliary needle assembly 2 can be reset through simple operation after false touch, and the next implantation operation is not affected. When the user does not press the contact portion 41 of the trigger cover 4 against the skin, the trigger cover 4 is not blocked, so when the user presses the trigger piece 3, the auxiliary needle assembly 2 and the trigger cover 4 move towards the opening together, at this time, although the auxiliary needle assembly 2 moves to the first proximal end position, the needle withdrawing action of the puncture piece 23 in the auxiliary needle assembly cannot be triggered, so that the monitoring device cannot be scrapped, the user can push the auxiliary needle assembly 2 back to the first distal end position to reset the auxiliary needle assembly, the next use of the monitoring device cannot be influenced, a recovery measure is provided after the monitoring device is triggered by mistake, the user is given more opportunities for testing mistakes before the monitoring device is correctly triggered by a correct operation method, the problem that the whole product is scrapped due to one-time misoperation is avoided, the use cost is reduced, and the use experience is improved.

When the user uses the trigger device correctly, the opening of the housing 1 needs to be abutted against the skin surface, and at this time, the contact portion 41 of the trigger cap 4 is abutted against the skin, and the trigger cap 4 is stopped by the skin and cannot move toward the opening. When the user presses the trigger 3, the needle assembly 2 can be moved to the first proximal position relative to the trigger cap 4, while the trigger cap 4 remains in place. After the needle assisting component 2 moves to the first proximal end position, the unlocking structure on the trigger cover 4 is matched with the limiting structure to unlock the puncture member 23, and at the moment, the puncture member 23 automatically completes the needle withdrawing movement.

Preferably, as shown in fig. 8, a guiding sliding strip is arranged on the inner wall of the shell 1, a matching sliding groove 45 is arranged on the outer wall of the trigger cover 4, and the guiding sliding strip and the matching sliding groove form a motion limit for the trigger cover 4, so that the trigger cover can only move along the axial direction of the shell 1 and cannot rotate. Of course, the housing 1 may be provided with a mating sliding groove 45, and the outer wall of the trigger cover 4 may be provided with a guide sliding bar, which is not particularly limited herein.

Specifically, as shown in fig. 7 and 8, the pushing member 22 is provided with a first clamping structure 223, the trigger cover 4 is provided with a second clamping structure 44, and the two structures are clamped and fixed, and when the trigger cover 4 is stopped, the second clamping structure 44 can slip off the first clamping structure 223, so that the two structures are separated from each other, and the pushing member 22 and the trigger cover 4 can move relatively.

Further, one of the first clamping structure 223 and the second clamping structure 44 has a clamping groove, the other clamping structure is located in the clamping groove, and a guiding surface 2231 is provided on a groove wall of the clamping groove, so that the first clamping structure and the second clamping structure can slide along the guiding surface 2231.

Further, as shown in fig. 2 and 8, the bottom end of the trigger cover 4 is turned outwards to form a turned-out edge, and the lower end surface of the turned-out edge forms a contact portion 41, so that the contact area between the contact portion 41 and the skin is increased, the touch feeling of a user is improved, and the use comfort is improved.

As shown in fig. 1 and 9, the skin fixing base 5 includes a base 51, a sensor 52, and a sensor electronic unit 53, the sensor 52 is fixed to the base 51, and the sensor electronic unit 53 is detachably connected to the base 51.

As shown in fig. 2 and 9, the stylus of the sensor 52 is protruded to the outside of the skin anchor 5, the puncture member 23 penetrates the skin anchor 5, and the stylus of the sensor 52 is accommodated inside the puncture member 23.

One side of the skin anchor 5 is provided with an adhesive sheet which is capable of adhering to the skin surface of a patient when it is in contact with the patient's skin, so that after implantation is completed, the stylus of the internal sensor 52 extends under the skin of the patient, and the skin anchor 5 is fixed to the skin surface of the patient.

In use of the monitoring device of the present utility model, when the user triggers an implantation procedure, the needle assembly 2 and the skin anchor 5 move synchronously together from the first distal position to the first proximal position, whereupon the piercing member 23 pierces the patient's skin and the sensor 52 is implanted subcutaneously in the patient with the stylus.

When implantation is completed, the unlocking structure releases the limit of the limit structure, so that the puncture member 23 alone retracts to the second distal end position, and needle withdrawing operation is completed. Finally, the user removes the housing assembly, leaving the skin anchor 5 on the patient's skin surface.

It should be noted that, the assembly mode of the sensor electronic unit 53 and the base 51 is not particularly limited, and may be one of the following embodiments:

example 1: in this embodiment, the sensor electronic unit 53 and the base 51 are detachably connected before leaving the factory, so that the sensor electronic unit 53 and the sensor 52 can be mounted to the base 51 step by step, and thus step sterilization can be achieved, for example, the sensor 52 is fixed to the base 51, after the sensor 52 is subjected to radiation sterilization, the sensor electronic unit 53 is mounted to the base 51, and then gas sterilization is performed, so that damage to the sensor 52 and the sensor electronic unit 53 caused by cross sterilization to different degrees is avoided.

When the monitoring device leaves the factory, the sensor electronic unit 53 and the base 51 are fixed, and after the implantation of the user is finished, the sensor electronic unit 53 is not required to be manually installed, so that operation steps of the user are saved, and the use experience is improved.

Example 2: in this embodiment, the sensor electronic unit 53 and the base 51 are detachable from the factory, so when the skin fixing base 5 is fixed on the needle assisting component 2, the sensor electronic unit 53 is not included thereon, and after implantation by a user, the sensor electronic unit 53 needs to be manually mounted on the base 51, and the skin fixing base 5 can realize the blood glucose monitoring function.

Further, as shown in fig. 10 and 11, the base 51 is provided with a first clamping rib 512 along the circumferential direction thereof, the sensor electronic unit 53 is correspondingly provided with a second clamping rib 531, the base 51 has an installation position 511 for installing the sensor 52, and the sensor electronic unit 53 has a positioning structure 532 adapted to the shape of the installation position 511.

The mode of clamping and fixing is adopted, so that the assembly is simpler and more convenient, and the assembly and the disassembly are convenient. Of course, the base 51 and the sensor electronic unit 53 may be fixed by other means, such as screw fixation, magnetic fixation, etc., which are not particularly limited herein.

By providing the positioning structure 532 corresponding to the shape of the mounting position 511 on the sensor electronic unit 53, the mounting of the sensor electronic unit 53 is performed. Specifically, as shown in fig. 10 and 11, the mounting position 511 has a positioning ring protruding upward, and the sensor electronic unit 53 is correspondingly provided with a positioning groove to form a positioning structure 532, so that the positioning difficulty of the sensor electronic unit 53 is reduced, and the assembly efficiency is further 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 (16)

1. A continuous blood sugar monitoring device comprises a shell component, a needle assisting component 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, and the continuous blood sugar monitoring device is characterized in that,

the skin fixing seat is clamped and fixed at one end of the auxiliary needle assembly, which faces the opening;

the monitoring device further comprises a trigger piece, the trigger piece is provided with a connecting end and an operating end, the connecting end is hinged with the shell so that the trigger piece is provided with an initial position and a needle assisting position, the trigger piece is further provided with a propping portion, and when the trigger piece moves from the initial position to the needle assisting position, the propping portion can push the needle assisting assembly to enable the needle assisting assembly to move from a first distal end position to a first proximal end position.

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

the trigger piece is connected with the top end of the shell, and when the trigger piece is positioned at the needle assisting position, the trigger piece is buckled on the upper surface of the shell.

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

the angle between the initial position of the trigger piece and the needle assisting position is 30-60 degrees.

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

the top of helping needle subassembly is equipped with the location slide, support the top and have the reference column, when the operation end is around the link rotates, the reference column can slide in the location slide.

5. The continuous blood glucose monitoring device of claim 4,

the locating slide way transversely extends to have an initial end and a trigger end, a limiting rib is further arranged in the locating slide way, and the limiting rib can be matched with the locating column stop to limit the locating column to the initial end.

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

the top of helping needle subassembly is provided with the location muscle, the location muscle with help the surface cooperation of needle subassembly forms the location slide, the location muscle is equipped with dodges the breach, so that the reference column can be followed dodge the breach gets into in the location slide.

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

the needle assisting assembly comprises a transmission piece and a needle assisting unit which are connected.

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

one of the outer wall of the transmission piece and the inner wall of the shell is provided with a guide chute extending towards the opening, and the other one of the outer wall of the transmission piece and the inner wall of the shell is provided with a guide protrusion matched with the guide chute.

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

the transmission piece is provided with a first clamping part, and the needle assisting unit is provided with a second clamping part matched with the first clamping part, so that the transmission piece and the needle assisting unit are clamped and fixed.

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

the needle assisting assembly comprises a pushing piece and a puncture piece arranged in the pushing piece, the puncture piece can move relative to the pushing piece to be provided with a second proximal end position and a second distal end position, the pushing piece is provided with a limiting structure for limiting the puncture piece to be located at the second proximal end position, the shell assembly is provided with an unlocking structure, and when the pushing piece moves to the opening, the unlocking structure can release the limiting of the limiting structure so that the puncture piece can move to the second distal end position.

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

the pushing piece is provided with a guide part, a guide channel is arranged in the guide part, the puncture piece is arranged in the guide channel, the limiting structure comprises a butt wing arranged on the guide part, the butt wing is provided with a stop protrusion protruding towards the inside of the guide channel, and the stop protrusion is limited with the puncture piece stop to limit the puncture piece to move towards the second distal end position.

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

the puncture piece is provided with a matching plane, and the stop protrusion is in abutting matching with the matching plane.

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

the unlocking structure comprises an unlocking convex rib, and the unlocking convex rib can abut against the abutting wing to enable the stop protrusion to move and separate from the puncture piece.

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

the shell component is provided with a slide way, the abutting wing is positioned in the slide way and moves along the slide way, and the unlocking convex rib is positioned at one end of the slide way.

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

the skin fixing seat comprises a base, a sensor and a sensor electronic unit, wherein the sensor is fixed on the base, and the sensor electronic unit is detachably connected with the base.

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

the base is provided with first joint muscle position along self circumference, the sensor electronic unit corresponds and is provided with second joint muscle position, the base has the installation position that is used for installing the sensor, the sensor electronic unit have with the location structure of installation position shape adaptation.

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