CN115919305A - Biological monitoring sensor implantation device and continuous blood sugar monitor - Google Patents

Abstract

The application discloses biological monitoring sensor implantation device and continuous blood sugar monitor, implantation device includes shell subassembly and assistor subassembly, shell subassembly includes the shell, the one end of shell is equipped with the opening, implantation device still includes the trigger piece, the trigger piece has link and operation end, the link articulates with the shell so that the trigger piece has initial position and assistor position, the trigger piece still has the top of supporting, when the trigger piece moves to the assistor position by initial position, the top of supporting can promote the assistor subassembly, so that the assistor subassembly moves to first near-end position by first distal end position. The trigger piece can rotate relative to the shell to realize the switching of the initial position and the needle assisting position. The transmission is carried out by means of the hinged shaft, so that the operation hand feeling is improved, and the user can operate the trigger part more easily and labor-saving. In addition, the trigger piece has more obvious visual effect, and the user can avoid the trigger piece with the finger consciously when holding the shell to reduce the probability of false triggering.

Description

Biological monitoring sensor implantation device and continuous blood sugar monitor

Technical Field

The application belongs to the technical field of medical equipment, concretely relates to biological monitoring sensor implantation device and continuous blood sugar monitor.

Background

A biosensor is an instrument that is sensitive to a bioactive substance and converts the sensed concentration of the bioactive substance into an electrical signal for detection. Among them, the glucose sensor is a common biosensor. CGM (continuous blood glucose monitoring) is a technical means of indirectly reflecting blood glucose levels by continuously monitoring the glucose concentration of subcutaneous interstitial fluid through a glucose sensor.

When the CGM product is used, a user needs to place the shell of the CGM product on skin, then presses the trigger button, 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 fluid generate electrochemical reaction, are converted into electric signals and are converted into blood sugar values to be provided for the user.

The triggering structure of the existing CGM product is generally a button structure disposed on the sidewall of the housing, and when in use, a user needs to hold the housing with a hand and then press the button inwards to complete the triggering operation. However, such a trigger operation has a lot of inconveniences in actual use. When a user presses the button, the internal stop structure and the puncture needle assembly need to be dislocated, and the puncture needle assembly is in an energy storage state under the action of the pushing component, so that a larger extrusion force is formed on the stop structure, the user needs to press the button by using a larger force, most users operate the button by one hand, the force application is difficult, and the situation that the trigger is not in place exists.

In addition, when the user holds the shell, the gripping force application direction of the fingers is consistent with the direction of the trigger button, so that the situation of false triggering is very easy to occur, the user triggers the implantation action under the condition of not being completely prepared, and the implantation failure is caused.

Moreover, the button is realized pressing through the mode of inside swinging deformation mostly, and this in-process, and the user can't observe the state of button obviously, triggers the in-process simultaneously and also can't obtain the feedback on the sense of touch, therefore user and medical personnel can't carry out better judgement to the implantation process, use experience not good enough.

Disclosure of Invention

The present application provides a biological monitoring sensor implant device and a continuous blood glucose monitor to address at least one of the above technical problems.

The technical scheme adopted by the application is as follows:

a biological monitoring sensor implanting device comprises a housing assembly and an assistant needle assembly arranged in the housing assembly, wherein the housing assembly comprises a housing, one end of the housing is provided with an opening, the implanting 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 housing to enable the trigger piece to have an initial position and an assistant needle position, the trigger piece is further provided with an abutting part, and when the trigger piece moves from the initial position to the assistant needle position, the abutting part can push the assistant needle assembly to enable the assistant needle assembly to move from a first far end position to a first near end position.

The trigger piece is connected with the top end of the shell, and when the trigger piece is located 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 and the needle assisting position is 30-60 degrees.

The top end of the needle assisting component is provided with a positioning slide way, the abutting part is provided with a positioning column, and when the operating end rotates around the connecting end, the positioning column can slide in the positioning slide way.

The location slide transversely extends in order to have initial end and trigger end, still be provided with spacing muscle in the location slide, spacing muscle can with reference column backstop cooperation, with the reference column restriction is in initial end.

The positioning slide rail is characterized in that a positioning rib is arranged at the top end of the needle assisting assembly, the positioning rib and the surface of the needle assisting assembly are matched to form the positioning slide rail, and an avoiding notch is formed in the positioning rib, so that the positioning column can enter the positioning slide rail from the avoiding notch.

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

One of the outer wall of the transmission member and the inner wall of the shell is provided with a guide sliding groove extending towards the opening, and the other of the outer wall of the transmission member and the inner wall of the shell is provided with a guide protrusion matched with the guide sliding groove.

The transmission medium has first joint portion, the helping needle unit have with first joint portion complex second joint portion to make the transmission medium with it is fixed to help the needle unit joint.

The needle assisting assembly comprises a pushing part and a puncture part arranged in the pushing part, the puncture part can move relative to the pushing part to have a second near-end position and a second far-end position, the pushing part is provided with a limiting structure used for limiting the puncture part at the second near-end position, the shell assembly is provided with an unlocking structure, and when the pushing part moves to the opening, the unlocking structure can release the limiting of the limiting structure, so that the puncture part moves to the second far-end position.

The propelling part has the guide part, the direction passageway has in the guide part, the puncture piece is arranged in the direction passageway, limit structure including set up in the butt wing of guide part, the butt wing has the orientation the inside convex backstop of direction passageway is protruding, the backstop protruding with the puncture piece backstop is spacing, in order to restrict the puncture piece to the motion of second distal end position.

The puncture piece is provided with a matching plane, and the stop bulge is in butt fit 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 stopping protrusion to move and be separated from the puncture piece.

The shell component is provided with a slide way, the abutting wings are located in the slide way and move along the slide way, and the unlocking convex rib is located at one end of the slide way.

The application also discloses a continuous blood glucose monitor, including above-mentioned biological monitoring sensor implantation device, still including being fixed in the helping hand needle subassembly orientation the skin fixing base of opening one end, the skin fixing base includes base, sensor and sensor electronic unit, the sensor is fixed in the base, sensor electronic unit with base detachably connects.

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

Due to the adoption of the technical scheme, the beneficial effects obtained by the application are as follows:

1. this application trigger's link is articulated with the shell for trigger can rotate the switching that realizes initial position and helping the needle position for the shell, and trigger promptly realizes the triggering to implantation device through rotating. Compare in the mode of pressing the button, carry out the transmission with the help of the articulated shaft, not only improved the operation and felt to the distance between operation end and the link is far away, therefore arm of force length is longer, makes the user operation more light laborsaving when triggering the trigger piece.

In addition, trigger piece and shell are articulated to be connected, can make trigger piece obtain more apparent visual effect, and the user can dodge trigger piece with the finger consciously when gripping the shell to the probability that the trigger piece leads to the spurious triggering is touched to the mistake when reducing and gripping the implantation device.

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 the needle subassembly, be convenient for carry out accurate the accuse to the implantation process, improve and use experience.

2. As a preferred embodiment of the present application, the trigger is connected to the top end of the housing, and the trigger snaps onto the top surface of the housing when the trigger is in the needle assisting position. The trigger piece is located the shell top, and the user need press the operation end downwards, makes the trigger piece rotate and accomplishes the trigger, consequently the motion direction of trigger piece is inconsistent with the application of force direction that the user gripped the shell to greatly reduced the user when gripping the shell, the probability of touching the trigger piece by mistake. In addition, after the triggering is finished, the triggering part is buckled with the upper surface of the shell, so that on one hand, the whole volume is saved, the subsequent centralized processing is convenient, on the other hand, the obvious prompt is given to a user, the using state of the CGM product can be known by observing the position state of the triggering part, and when the triggering part is kept at the needle assisting position, the implantation device is used completely and cannot be used again.

3. As a preferred embodiment of the application, the top end of the needle assisting assembly is provided with a positioning slide way, the abutting part is provided with a positioning column, and the positioning column can slide in the positioning slide way when the operating end rotates around the connecting end. The location slide can carry out spacingly to the reference column, prescribes a limit to inside the location slide with its motion, and when trigger piece rotated around the articulated shaft, the reference column not only formed towards open-ended ejection force to the assistor subassembly, made the movement of assistor subassembly, but also along location slide lateral sliding, made the motion of trigger piece more reliable, made it advance can follow the route of predetermineeing and moved to it is more stable to make user's operation feel.

4. As a preferred embodiment of the application, the positioning slide way extends transversely to have an initial end and a triggering end, and a limiting rib is further arranged in the positioning slide way and can be matched with the positioning column in a stopping manner to limit the positioning column at the initial end. Spacing muscle is with the reference column restriction in the initial end to with reference column backstop cooperation, consequently the user can not trigger easily when pressing the trigger piece and trigger the piece and rotate, but need exert great power, make the reference column cross spacing muscle, just can slide in the slide of fixing a position, with this operation degree of difficulty that has increased the trigger piece properly, further improved the effect of preventing mistake and touching of trigger piece.

5. As a preferred embodiment of the present application, the needle assisting assembly includes a pushing member and a puncturing member disposed inside the pushing member, the puncturing member is capable of moving 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 puncturing member at 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 structure so as to move the puncturing member to the distal end. When a user triggers to perform implantation operation, the pushing part and the puncturing part move synchronously and move from the first far-end position to the first near-end position together, at the moment, the puncturing part punctures the skin of a patient, and the sensor contact pin in the skin fixing seat is implanted into the subcutaneous part of the patient. The limiting structure limits the puncture piece to enable the puncture piece and the pushing piece to keep synchronous movement, after implantation is completed, the puncture piece is located at the first near end position, the puncture piece is triggered by the unlocking structure at the moment, and therefore limitation of the limiting structure is relieved, and the puncture piece can move relative to the pushing piece. At this time, the pushing component still stays at the first proximal end position, and the puncturing component retracts to the second distal end position independently, so that the needle withdrawing operation is completed. The unlocking structure is located at the first near-end position and located on the motion path of the puncture piece, so that when the pushing piece carries the puncture piece to move to the first near-end position together, the unlocking structure can automatically realize the triggering unlocking of the puncture piece, the user does not need to additionally perform needle withdrawing operation, the continuous implementation of the steps of implanting and withdrawing the needle is automatically completed in one step of operation, 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 application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is an exploded view of a monitor according to one embodiment of the present application;

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

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

FIG. 4 is a schematic structural view of a housing according to an embodiment of the present application;

FIG. 5 is a schematic view of a transmission according to an embodiment of the present application;

FIG. 6 is a schematic view of the other side of the driving member shown in FIG. 5;

FIG. 7 is a schematic illustration of a pusher according to an embodiment of the present application;

FIG. 8 is a schematic view of a trigger hood according to an embodiment of the present application;

FIG. 9 is a schematic view of a skin anchor according to an embodiment of the present application;

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 one embodiment of the present application;

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

fig. 14 is a structural schematic view of the needle holder in fig. 12.

Wherein:

1, a shell; 11, passing through a port; 12 a guide projection; 13 a hinged seat;

2, assisting the needle assembly; 21 a transmission member; 211 a positioning slide way; 212 a positioning rib; 213 limiting ribs; 214 avoiding the gap; 215 a guide chute; 216 an initial end; 217 a trigger end; 218 a first clamping portion; 22 a pusher; a 221 guide part; 2211 a guide channel; 2212 the abutment wings; 2213 stop boss; 2214 reinforcing ribs; 2215 guiding the tendon; 222 a second clamping part; 223 a first clamping structure; 2231 a guide surface; 23 a piercing member; 231 needle bodies; 232 needle base; 2321 fitting plane; 2322 a guide groove;

3, a trigger piece; 31 a top portion; 311 a positioning column; 32 a connecting end; 321 an articulated arm; 322 with a hinge axis; 33 an operation end;

4 triggering the cover; 41 a contact portion; 42 a slideway; 43 unlocking the convex rib; 44 a second clamping structure; 45 matching the sliding chute;

5, fixing the skin; 51 a base; 511 an installation position; 512 first card clamping rib positions; a 52 sensor; 53 sensor electronics unit; 531 second card clamping rib position; 532 positioning structure;

6 a tension spring.

Detailed Description

In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.

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

In addition, in the description of the present application, it is to be understood that the terms "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the positional or orientational relationship shown in the drawings for the purpose of convenience and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present invention.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. In the description herein, reference to the terms "implementation," "embodiment," "one embodiment," "example" or "specific example" or the like means 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 application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer 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 biological monitoring sensor implanting device comprises a housing assembly and an assistant needle assembly 2 arranged in the housing assembly, wherein the housing assembly comprises a housing 1, one end of the housing 1 is provided with an opening, the implanting device further comprises a trigger 3, the trigger 3 is provided with a connecting end 32 and an operating end 33, the connecting end 32 is hinged with the housing 1 so as to enable the trigger 3 to have an initial position and an assistant needle position, the trigger 3 is further provided with an abutting part 31, and when the trigger 3 moves from the initial position to the assistant needle position, the abutting part 31 can push the assistant needle assembly 2 so as to enable the assistant needle assembly 2 to move from a first far end position to a first near end position.

It will be appreciated that the first distal position is an initial position of the needle assembly 2, in use the opening of the housing 1 is placed against the skin of the patient, and that after the trigger 3 has been activated by the user, the needle assembly 2 performs an implanting action, i.e. moves towards the opening to a position where the puncture needle pierces the skin of the patient, whereupon the needle assembly 2 reaches the first proximal position.

The connecting end 32 of the trigger piece is hinged to the housing 1, so that the trigger piece 3 can rotate relative to the housing 1 to realize the switching between the initial position and the needle assisting position, namely, the trigger piece 3 realizes the triggering of the implantation device through rotation. Compared with a button pressing mode, the operation is performed by means of the hinged shaft, operation hand feeling is improved, the distance between the operation end 33 and the connecting end 32 is long, the length of the force arm is long, and the user can operate the trigger piece 3 easily and labor-saving.

In addition, trigger 3 is connected with shell 1 is articulated, can make trigger 3 obtain more apparent visual effect, and the user can dodge trigger 3 with the finger consciously when holding shell 1 to the probability that trigger 3 leads to the spurious triggering is touched to the mistake when reducing and holding the implantation device.

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

As shown in fig. 3 and 4, in a specific embodiment, the connection end 32 of the trigger 3 is provided with a hinge arm 321, the housing 1 is provided with a hinge seat 13, a side wall of the hinge arm 321 protrudes to form a hinge shaft 322, and the hinge shaft 322 extends into a hole of the hinge seat 13 to complete the hinge. Of course, the hinge shaft may be fixed to the hinge base 13, and a hole may be correspondingly formed in the hinge arm 321 to pass the hinge shaft therethrough. For another example, the hinge arm 321 and the hinge seat 13 are provided with openings, the hinge shaft is of a separate 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 present application is not limited to the manner of triggering the needle assembly 2 by the trigger 3, and in one embodiment, the housing assembly is provided with a limiting part for limiting the position of the needle assembly 2, so as to limit the needle assembly 2 at the first distal position, and when the trigger 3 is operated by the user, the trigger 3 pushes the needle assembly 2 to disengage from the limiting part, and automatically moves towards the first proximal position to complete the implantation. For example, a spring or the like may be provided within the housing assembly to provide a pushing force for the movement of the needle assembly 2 towards the first proximal position.

In another embodiment, the needle assembly 2 is a structure that is manually implanted, that is, when the user operates the trigger 3, the user needs to press the trigger 3 all the time, so that the trigger 3 continuously exerts an ejecting force on the needle assembly 2, and further continuously pushes the needle assembly 2 to move to the first proximal end position, the implantation process needs the user to press the trigger 3 all the time, and the magnitude of the pushing force of the trigger 3 on the needle assembly 2 and the movement speed of the needle assembly 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 on 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 operation end 33 downwards to enable the trigger 3 to rotate to complete triggering, 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 finger on the housing 1 is inward along the radial direction of the housing 1, and the force application direction of the trigger 3 is pressed along the axial direction of the housing 1), thereby greatly reducing the probability of mistakenly touching the trigger 3 when the user holds the housing 1. In addition, after triggering, the trigger 3 is buckled with the upper surface of the shell 1, on one hand, the whole volume is saved, subsequent centralized processing is convenient, on the other hand, obvious prompt is given to a user, the using state of the CGM product can be known by observing the position state of the trigger 3, and when the trigger 3 is kept at the needle assisting position, the implantation device is used completely and cannot be used again.

Specifically, as shown in fig. 2, the connecting end 32 is hinged to the top wall of the housing 1, and the operating end 33 is located at one side of the housing 1, so as to further increase the moment arm and save more labor for the user to operate. While between the handling end 33 and the connecting end 32 a stop portion 31 is provided for pushing the needle assembly 2.

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

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

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

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

The positioning slide 211 can limit the positioning column 311, and the movement of the positioning column is limited in the positioning slide 211, when the trigger 3 rotates around the hinge shaft, the positioning column 311 not only forms an ejecting force towards the opening to the needle assembly 2, so that the needle assembly 2 moves, but also transversely slides along the positioning slide 211, so that the movement of the trigger 3 is more reliable, the trigger 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 laterally to have an initial end 216 and an initiation end 217, and a limiting rib 213 is further disposed in the positioning slide 211, and the limiting rib 213 can be in stop-fit with the positioning pillar 311 to limit the positioning pillar 311 at the initial end 216.

Spacing muscle 213 restricts reference column 311 at initial end 216 to with reference column 311 backstop cooperation, therefore the user is pressing trigger 3 when, can not trigger 3 easily and rotate, but need exert great power, make reference column 311 cross spacing muscle 213, just can slide in location slide 211, with this operation degree of difficulty that has suitably increased trigger 3, further improved trigger 3's the effect of preventing the mistake and touching.

Preferably, as shown in fig. 3 and 5, the positioning column 311 is a cylindrical structure, and the surface of the limiting rib 213 is also provided with a transition arc surface, so that the positioning column 311 is smoother when crossing 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 an initial end 216, and the right end is a trigger end 217, when the operation end 33 of the trigger 3 rotates downward, under the limitation of the positioning slide 211, the end of the abutting portion 31, i.e. the positioning pillar 311, slides to the right, and when the trigger 3 rotates to the needle assisting position, the positioning pillar 311 moves to the trigger end 217.

Further, as shown in fig. 5, a positioning rib 212 is disposed at a top end of the needle assembly 2, the positioning rib 212 cooperates with a surface of the needle assembly 2 to form a positioning slide 211, and the positioning rib 212 is provided with an avoiding notch 214, so that the positioning column 311 can enter the positioning slide 211 from the avoiding notch 214.

Preferably, the positioning rib 212 and the needle assisting assembly 2 are of a non-detachable structure, the arrangement of the avoiding 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, two positioning ribs 212 are located at two sides of the positioning column 311, and further, a positioning slide 211 is formed at each of the two sides of the positioning column 311, and two ends of the positioning column 311 are respectively matched with the positioning slide 211, so that the guiding effect of the positioning column 311 is improved.

As a preferred embodiment of the present application, as shown in fig. 1, 5 to 7, the needle assisting assembly 2 includes a transmission member 21 and a needle assisting unit connected together, further, the present embodiment is not limited to the assembling manner of the transmission member 21 and the needle assisting unit, and in a preferred embodiment, as shown in fig. 6 and 7, the transmission member 21 has a first clamping portion 218, and the needle assisting unit has a second clamping portion 222 engaged with the first clamping portion 218, so that the transmission member 21 and the needle assisting unit are clamped and fixed. Of course, the transmission member 21 and the needle assisting unit may be fixed by other means, such as magnetic attraction, screw connection, etc.

In another embodiment, the transmission member 21 and the needle assisting unit are integrally formed, so as to simplify the structure of the needle assisting unit 2, omit the assembly step and improve the assembly efficiency.

Specifically, as shown in fig. 7, the needle assisting unit is provided with at least two channels, a second clamping portion 222 is arranged on a channel wall of each channel, and the transmission member 21 is provided with a first clamping portion 218 corresponding to the second clamping portion 222, so that the transmission member 21 and the needle assisting unit are clamped at multiple positions, the connection strength is improved, the coaxiality of the transmission member 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 sliding groove 215 extending toward the opening, and the other is provided with a guide protrusion 12 engaged with the guide sliding groove 215.

The guide sliding groove 215 is matched with the guide protrusion 12 to limit the transmission member 21 and the needle assisting unit, so that the transmission member and the needle assisting unit can only move along the axial direction of the shell 1, and the movement reliability of the needle assisting unit 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 sliding slot 215 is disposed on the outer wall of the transmission member 21, and the two are inserted and matched. Of course, the guiding protrusion 12 may be disposed on an outer wall of the transmission member 21, and correspondingly, the guiding sliding slot 215 is disposed on an inner wall of the housing 1, which is not limited in this respect.

Preferably, as shown in fig. 5, the guide sliding grooves 215 are provided in plurality and are 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 application, as shown in fig. 2, the needle assembly 2 comprises a pusher 22 and a puncture member 23 disposed inside the pusher 22, the puncture member 23 is movable relative to the pusher 22 to have a second proximal end position and a second distal end position, the pusher 22 is provided with a limiting structure for limiting the puncture member 23 to the second proximal end position, and the housing assembly is provided with an unlocking structure, when the pusher 22 moves to the opening, the unlocking structure can release the limiting structure to allow the puncture member 23 to move to the second distal end position.

When the user triggers the implantation operation, the pushing component 22 and the puncturing component 23 move synchronously to move from the first far-end position to the first near-end position together, and at the moment, the puncturing component 23 punctures the skin of the patient, and the sensor contact pin in the skin fixing seat 5 is implanted into the subcutaneous part of the patient. The limiting structure limits the puncture piece 23 to keep the puncture piece and the pushing piece 22 to move synchronously, when the implantation is completed, the puncture piece 23 is located at the first proximal end position, the limiting structure is triggered by the unlocking structure at the moment, and therefore the limitation of the limiting structure is released, and the puncture piece 23 can move relative to the pushing piece 22. At this point, the pusher 22 remains in the first proximal position and the piercing member 23 is retracted to the second distal position alone, completing the needle withdrawal operation.

The unlocking structure is located at the first near-end position and located on the movement path of the puncture piece 23, so that when the pushing piece 22 carries the puncture piece 23 to move to the first near-end position together, the unlocking structure can automatically realize the triggering unlocking of the puncture piece 23, the user does not need to additionally perform needle withdrawing operation, 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 to the puncturing element 23 to provide power required for the needle withdrawing movement for the puncturing element 23, and when the unlocking structure unlocks the limiting structure, the puncturing element 23 moves to the second distal end position under the pulling of the tension spring 6 to complete the needle withdrawing.

In a preferred embodiment, as shown in fig. 7, the pushing member 22 has a guiding portion 221, the guiding portion 221 has a guiding channel 2211 therein, the puncturing member 23 is disposed in the guiding channel 2211, the limiting structure includes an abutting wing 2212 disposed on the guiding portion 221, the abutting wing 2212 has a stopping protrusion 2213 protruding toward the inside of the guiding channel 2211, and the stopping protrusion 2213 stops the limiting structure with the puncturing member 23 to limit the movement of the puncturing member 23 to the second distal position.

As shown in fig. 7, the guide portion 221 is provided with an abutting wing 2212 extending outside the guide passage 2211, the abutting wing 2212 is provided with a stopping protrusion 2213 inside, and the stopping protrusion 2213 stops against the puncturing member 23 to form a limit for the puncturing member 23.

As shown in fig. 7, one end of the contact wing 2212 is fixed to the pusher 22, and the other end is free, so that the contact wing 2212 can be deformed by being pressed, and the free end swings around the fixed end, so that the contact wing 2212 is deformed to switch the state of the stopper for the puncture element 23. Likewise, stop projection 2213 is provided at the free end to enable it to better follow the movement of abutment wing 2212.

As shown in fig. 7, the contact wing 2212 is further provided with a rib 2214 to improve the strength of the contact wing 2212 and prevent the contact wing 2212 from being broken due to large deformation when being pressed.

Further, as shown in fig. 12 and 14, the puncture member 23 has a fitting flat surface 2321, and the stopper projection 2213 is in abutting fitting with the fitting flat surface 2321.

Backstop arch 2213 and cooperation plane 2321 backstop have increased the area of contact of the two, make backstop arch 2213 to the backstop of puncture piece 23 more steady and firm, improve stability, prevent that puncture piece 23 from being triggered by the mistake.

Preferably, as shown in fig. 12 to 14, the puncturing element 23 comprises a needle 231 and a needle seat 232, the needle seat 232 is used as a carrier of the needle 231, and the engagement plane 2321 is disposed on the needle seat 232.

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

As shown in fig. 8, the unlocking structure includes an unlocking rib 43, and the unlocking rib 43 can abut against the abutment wing 2212 to move the stopper projection 2213 and disengage from the puncturing 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 abutting wing 2212, so that the abutting wing 2212 deforms and opens towards the outer side of the guide passage 2211, the stopping protrusion 2213 on the inner side of the abutting wing 2212 synchronously opens outwards, the stopping on 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 finish needle withdrawing.

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

The slide 42 and the butt wing 2212 are matched to further play a role in guiding the movement of the needle assisting assembly 2, and meanwhile, the unlocking convex rib 43 is located at one end of the slide 42, so that effective triggering of the unlocking structure on the butt wing 2212 can be ensured, the probability of failure of the unlocking structure due to assembly errors is reduced, and the matching reliability of the slide 42 and the butt wing 2212 is improved.

Preferably, as shown in fig. 7 and 8, two abutting wings 2212 are symmetrically arranged on both sides of the guide passage 2211, and two slide ways 42 are correspondingly arranged and distributed on both sides of the guide portion 221, so that the abutting wings 2212 on both sides are positioned in the slide ways 42 and move along the slide ways 42.

In a preferred embodiment of the present application, as shown in fig. 1 and 8, the housing assembly further comprises a trigger cap 4 disposed inside the housing 1, the trigger cap 4 is disposed at one end of the needle assembly 2 facing the opening, the trigger cap 4 has a contact portion 41 for contacting the skin, the needle assembly 2 can move toward the opening in synchronization with the trigger cap 4 and move relative to the trigger cap 4 when the contact portion 41 is stopped. The unlocking structure is arranged on the trigger hood 4.

The trigger cover 4 can function as a false-touch prevention member of the implantation device, realizes false-touch prevention of the needle assembly 2, and can reset the needle assembly 2 by a simple operation after false-touch without affecting the next implantation operation. When the user does not attach the contact part 41 of the trigger cover 4 to the skin, the trigger cover 4 is not stopped, so when the user presses the trigger piece 3, the needle assisting assembly 2 and the trigger cover 4 move towards the opening together, at this time, although the needle assisting assembly 2 moves to the first proximal end position, the needle withdrawing action of the puncture piece 23 in the needle assisting assembly cannot be triggered, and therefore the rejection of the implantation device cannot be caused, the user can push the needle assisting assembly 2 back to the first distal end position to reset the needle assisting assembly, and the influence on the next use of the implantation device cannot be caused, therefore, a recovery measure is provided for the implantation device after being triggered by mistake, before the implantation device is correctly triggered by a correct operation method, the chance of trial and error is given to the user for more times, the problem that the whole product is rejected due to one-time misoperation is avoided, the use cost is reduced, and the use experience is improved.

When the user uses the 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 cover 4 is in close contact with the skin, and the trigger cover 4 cannot move toward the opening due to the skin stop. When the user presses the trigger 3, the needle assembly 2 can be moved to a first proximal position relative to the trigger housing 4, while the trigger housing 4 remains in the home position. After the needle assisting assembly 2 moves to the first proximal position, the unlocking structure on the trigger cover 4 is matched with the limiting structure to unlock the puncture piece 23, and at the moment, the puncture piece 23 automatically finishes needle withdrawing movement.

Preferably, as shown in fig. 8, the inner wall of the housing 1 is provided with a guiding slide bar, the outer wall of the trigger cover 4 is provided with a matching sliding groove 45, and the guiding slide bar and the matching sliding groove are matched to form a movement limit for the trigger cover 4, so that the trigger cover can only move along the axial direction of the housing 1 and cannot rotate. Of course, the housing 1 may be provided with a matching sliding groove 45, and the outer wall of the trigger cover 4 may be provided with a guiding sliding strip, which is not 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, the two clamping structures are clamped and fixed, and when the trigger cover 4 is stopped, the second clamping structure 44 can slip off from the first clamping structure 223, so that the two clamping structures are disengaged, 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, and the other is located in the clamping groove, and a groove wall of the clamping groove is provided with a guiding surface 2231, so that the two can slide off along the guiding surface 2231.

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

As shown in fig. 1 and fig. 9, the present application further discloses a continuous blood glucose monitor, which comprises the above-mentioned implant device, and further comprises a skin fixing base 5 fixed on one end of the needle assembly 2 facing the opening, wherein the skin fixing base 5 comprises a base 51, a sensor 52 and a sensor electronic unit 53, the sensor 52 is fixed on the base 51, and the sensor electronic unit 53 is detachably connected with the base 51.

As shown in fig. 2 and 9, the stylus of the sensor 52 extends out of the skin fixing base 5, the puncturing element 23 penetrates through the skin fixing base 5, and the stylus of the sensor 52 is accommodated inside the puncturing element 23.

One side of the skin fixing seat 5 is provided with an adhesive sheet which can be adhered to the skin surface of a patient when the skin fixing seat contacts with the skin of the patient, so that after the implantation is completed, the contact pin of the internal sensor 52 extends into the subcutaneous part of the patient, and the skin fixing seat 5 is fixed on the skin surface of the patient.

When the monitor is used and a user triggers an implantation operation, the needle assisting assembly 2 and the skin fixing seat 5 move synchronously to move from the first far end position to the first near end position together, at the moment, the puncture piece 23 punctures the skin of a patient, and the sensor 52 stylus is implanted under the skin of the patient.

After implantation is completed, the unlocking structure releases the limitation of the limiting structure, so that the puncture piece 23 independently retracts to the second far-end position, and needle withdrawing operation is completed. Finally, the user removes the housing assembly and the skin anchor 5 is left on the surface of the patient's skin.

It should be noted that the assembly manner of the sensor electronic unit 53 and the base 51 is not specifically limited in the present application, and may be one of the following embodiments:

example 1: in the present embodiment, the sensor electronic unit 53 and the base 51 are detachably connected before shipping, so that the sensor electronic unit 53 and the sensor 52 can be mounted to the base 51 step by step, thereby achieving step sterilization, for example, the sensor 52 is fixed to the base 51, the sensor 52 is subjected to radiation sterilization, then the sensor electronic unit 53 is mounted to the base 51, and gas sterilization is performed on the sensor 53, thereby avoiding cross sterilization from causing damage to the sensor 52 and the sensor electronic unit 53 to different degrees.

When the implantation device leaves the factory, the sensor electronic unit 53 and the base 51 are fixed, and at this time, after the user implants the device, the user does not need to manually install the sensor electronic unit 53, so that the 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 assembly 2, the sensor electronic unit 53 is not contained thereon, and after the user is implanted, the sensor electronic unit 53 needs to be manually installed on the base 51, and at this time, the skin fixing base 5 can achieve the blood glucose monitoring function.

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

The clamping and fixing mode is adopted, so that the assembly is simpler and more convenient, and the assembly and disassembly are convenient. Of course, the base 51 and the sensor electronic unit 53 may be fixed in other manners, such as screw thread fixing, magnetic attraction fixing, etc., and are not limited in detail herein.

The positioning structure 532 is provided on the sensor electronic unit 53 corresponding to the shape of the mounting position 511, thereby performing a mounting positioning function for mounting the sensor electronic unit 53. Specifically, as shown in fig. 10 and 11, the mounting position 511 has a positioning ring protruding upward, the sensor electronic unit 53 is correspondingly provided with a positioning groove to form a positioning structure 532, and the positioning structure 532 and the positioning structure are inserted and positioned to reduce the positioning difficulty of the sensor electronic unit 53 and further improve the assembly efficiency.

Where not mentioned in this application, can be accomplished using or referencing existing technology.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims (16)

1. A biological monitoring sensor implantation device comprising a housing assembly and an assistor assembly disposed within the housing assembly, the housing assembly comprising a housing having an opening at one end,

the implantation device further comprises a trigger part, wherein the trigger part is provided with a connecting end and an operating end, the connecting end is hinged with the shell so that the trigger part is provided with an initial position and a needle assisting position, the trigger part is also provided with an abutting part, and when the trigger part moves from the initial position to the needle assisting position, the abutting part can push the needle assisting assembly so that the needle assisting assembly moves from a first far end position to a first near end position.

2. The biological monitoring sensor implant device of claim 1,

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

3. The biological monitoring sensor implant device of claim 1,

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

4. The biological monitoring sensor implant device of claim 1,

the top end of the needle assisting component is provided with a positioning slide way, the abutting part is provided with a positioning column, and when the operating end rotates around the connecting end, the positioning column can slide in the positioning slide way.

5. The biological monitoring sensor implant device of claim 4,

the location slide transversely extends in order to have initial end and trigger end, still be provided with spacing muscle in the location slide, spacing muscle can with reference column backstop cooperation, with the reference column restriction is in initial end.

6. The biological monitoring sensor implant device of claim 5,

the positioning slide rail is characterized in that a positioning rib is arranged at the top end of the needle assisting assembly, the positioning rib and the surface of the needle assisting assembly are matched to form the positioning slide rail, and an avoiding notch is formed in the positioning rib, so that the positioning column can enter the positioning slide rail from the avoiding notch.

7. The biological monitoring sensor implant device of claim 1,

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

8. The biological monitoring sensor implant device of claim 7,

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

9. The biological monitoring sensor implant device of claim 7,

the driving medium has first joint portion, the helping hand needle unit have with first joint portion complex second joint portion, so that the driving medium with it is fixed to help the needle unit joint.

10. The biological monitoring sensor implant device of claim 1,

the needle assisting assembly comprises a pushing piece and a puncture piece arranged inside the pushing piece, the puncture piece can move relative to the pushing piece to have a second near-end position and a second far-end position, the pushing piece is provided with a limiting structure used for limiting the puncture piece to the second near-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 moves to the second far-end position.

11. The biological monitoring sensor implant device of claim 10,

the propelling part has the guide part, the direction passageway has in the guide part, the puncture piece is arranged in the direction passageway, limit structure including set up in the butt wing of guide part, the butt wing has the orientation the inside convex backstop of direction passageway is protruding, the backstop protruding with the puncture piece backstop is spacing, in order to restrict the puncture piece to the motion of second distal end position.

12. The biological monitoring sensor implant device of claim 11,

the puncture piece is provided with a matching plane, and the stop bulge is in butt fit with the matching plane.

13. The biological monitoring sensor implant device of claim 11,

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

14. The biological monitoring sensor implant device of claim 13,

the shell subassembly is provided with the slide, the butt wing is located in the slide and along the slide motion, the unblock protruding muscle is located the one end of slide.

15. A continuous blood sugar monitor is characterized in that,

an implant device comprising the biological monitoring sensor of any of claims 1-14;

the monitor also comprises a skin fixing seat fixed at one end of the needle assisting assembly facing the opening, wherein the skin fixing seat comprises a base, a sensor and a sensor electronic unit, the sensor is fixed at the base, and the sensor electronic unit is detachably connected with the base.

16. The continuous blood glucose monitor of claim 15,

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

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