CN203647806U

CN203647806U - Insulin injector

Info

Publication number: CN203647806U
Application number: CN201320869523.0U
Authority: CN
Inventors: 刘金霞; 鹿霏; 张敬东; 刘茂河
Original assignee: Shanghai Microport Lifesciences Co Ltd
Current assignee: Shanghai Microport Lifesciences Co Ltd
Priority date: 2013-12-26
Filing date: 2013-12-26
Publication date: 2014-06-18
Anticipated expiration: 2023-12-26

Abstract

The utility model mainly aims at providing an insulin injector capable of using more than one pen core. The insulin injector comprises an insulin pen core, a fixing seat, a driving system and a control system, wherein the fixing seat is used for fixing the insulin pen core, the driving system is used for controlling a medication piston used for pushing the insulin pen core, a triggering mechanism is arranged in the fixing seat and is used for sending out corresponding triggering signals according to different geometrical specifications of the insulin pen core, and the control system is used for controlling the moving and the stopping of the driving system according to the triggering signals and the received medication information.

Description

A kind of insulin syringe

Technical field

This utility model relates to a kind of insulin syringe.

Background technology

The sickness rate of diabetes increases day by day, has become the third-largest killer after cardiovascular and cerebrovascular disease and tumor.Think at present, injection of insulin treatment is the effective ways for the treatment of diabetes.Carry out intensive treatment by injection of insulin, can make patient's blood glucose, blood fat, blood pressure and BMI etc. comprehensively up to standard.

Current multiplex insulin pump and novopen carry out infusion of insulin, existing novopen can load a kind of pen core on the market, in pen core, contain insulin medicinal liquid and administration piston, when infusion by style to the amount requiring, then manual thrust unit, make medicinal liquid input human body, such infusion mode, in infusion process, infusion amount is inhomogeneous, affect the absorption of medicinal liquid, restriction based on structure in addition, mechanical insulin injection pen minimum step is 1U, its precision also guarantees by locating part, once locating part has wearing and tearing, precision is by inaccurate; In addition, current product one-pen is only with the insulin by a kind of specification, in the case of conventional on the market insulin pen-cartridge specification more than a kind of, for user, once the insulin pen-cartridge specification of selecting is inconsistent with the model of pen, the insulin dose of infusion is difficult to regulate accurately, and shadow is to infusion effect.

Summary of the invention

Main purpose of the present utility model is to provide a kind of insulin syringe that can use more than a kind of pen core.Other features of the present utility model, advantage are illustrated in connection with embodiment.

For achieving the above object, this utility model provides following technical scheme:

A kind of insulin syringe, comprise the holder for fixing insulin pen-cartridge, the drive system that is used for the administration piston that drives described insulin pen-cartridge, comprises trigger mechanism in described holder, sends corresponding triggering signal for the different geometric specifications according to described insulin pen-cartridge; Described insulin syringe also comprises control system, for according to the motion of drive system described in the dosage information control of described triggering signal and reception with stop.

Alternatively, described drive system comprises screw mandrel, decelerator and motor, wherein: described screw mandrel is used for promoting described administration piston; Described decelerator is connected with described screw mandrel; The output shaft of described motor is connected with described decelerator, drives described screw mandrel via described decelerator.

Alternatively, described insulin syringe also comprises counting assembly, rotates the number of turns for recording described motor.

Alternatively, described counting assembly is infrared counting device.

Alternatively, described holder comprises having long pen core mounting groove, and is placed in the short pen core mounting groove in described long pen core mounting groove, and thimble and circuits for triggering plate; Described circuits for triggering plate for sending described triggering signal in the situation that described thimble contacts with described pen core; Described control system is connected with described circuits for triggering plate, and according to whether receiving that described triggering signal determines the geometric specifications of pen core.

Alternatively, described insulin syringe also comprises display device, for showing the information of described control system output.

Alternatively, in described control system, comprise storage device, this storage device is used for preserving dosage configuration information.

Alternatively, also comprise information setting device, for dosage information is set.

Alternatively, in described information setting device, comprise knob, for dosage information being set by rotating described knob.

According to the technical solution of the utility model, utilize the accurately stroke of control-driven system of microprocessor, therefore contribute to improve the accuracy of insulin medicinal liquid infusion amount.Carry out the corresponding stroke that calculates administration piston when determining administration by the identification to pen core and according to recognition result, can realize a kind of insulin syringe and can use more than a kind of pen core.

Accompanying drawing explanation

Accompanying drawing, for understanding this utility model better, does not form improper restriction of the present utility model.Wherein:

Fig. 1 is according to the schematic diagram of the ultimate principle of the insulin syringe of this utility model embodiment;

Fig. 2 is according to the schematic diagram of a kind of preferred structure of the insulin syringe of this utility model embodiment;

Fig. 3 is according to the schematic diagram of the mechanism of the identification pen core of this utility model embodiment.

The specific embodiment

Below in conjunction with accompanying drawing, one exemplary embodiment of the present utility model is explained, to help understanding, they should be thought to be only exemplary comprising the various details of this utility model embodiment.Therefore, those of ordinary skills will be appreciated that, can make various changes and modification to the embodiments described herein, and can not deviate from scope and spirit of the present utility model.Equally, for clarity and conciseness, in following description, omitted the description to known function and structure.

Fig. 1 is according to the schematic diagram of the ultimate principle of the insulin syringe of this utility model embodiment.As shown in Figure 1, the insulin syringe of this utility model embodiment mainly comprises holder 11, drive system 12 and control system 13; Control system 13 comprises microprocessor 131, and drive system 12 comprises motor 121.Holder 11 is for fixing insulin pen-cartridge; Drive system 12 is for advancing the administration piston of insulin pen-cartridge in electronic mode; Control system 13 is for according to the dosage configuration information and the administration enabling signal that receive, the startup operation of control-driven system 12 and out of service.This control system 12 is utilized the accurately stroke of control-driven system 12 of microprocessor, therefore contributes to improve the accuracy of insulin medicinal liquid infusion amount.

Fig. 2 is according to the schematic diagram of a kind of preferred structure of the insulin syringe of this utility model embodiment.As shown in Figure 2, the insulin syringe in this utility model embodiment comprises end cap 212, holder 201; And the screw mandrel 202, decelerator 203, the motor 204 that connect successively; In addition there are the parts such as circuits for triggering plate 206, drive end bearing bracket 207, knob 208, wiring board 209, upper cover 210; On upper cover 210, can post facial film 211, be used for indicating the information such as product brand, model.Shown in Fig. 2 is explosive view, and in the insulin syringe after assembling, end cap 212 covers on holder 201, and decelerator 203, motor 204 are contained in base 205, and base 205 is connected with holder 201, and screw mandrel 202 parts are positioned at base 205.

Under the state completing in assembling, the direction of propulsion of the administration piston (not shown) of the axial and pen core of screw mandrel 202 will be on same straight line, and screw mandrel 202 can promote administration piston-advance with its termination 2021 like this.The output shaft of motor 204 drives screw mandrel 202 via decelerator 203, under the effect of decelerator 203, larger velocity of rotation when motor 204 rotates is reduced to less velocity of rotation according to deceleration ratio, change into small axial advancement amount via screw mandrel 202, administration piston can be pushed into minimum step-length, thereby reach very high administration precision, minimum infusion amount step-length can reach 0.1U.

Base 205 is interior can arrange stopper slot, correspondingly in screw mandrel one end, locating part can be set, and locating part moves in stopper slot, can guarantee that screw mandrel moves along a straight line, and promotes the operation of administration piston forward.

Circuits for triggering plate 206 is mainly used to coordinate the function that realizes pen core identification.With reference to figure 3, Fig. 3 is according to the schematic diagram of the mechanism of the identification pen core of this utility model embodiment.Consider that various pen cores generally have different overall dimensions, so in the present embodiment, utilize the overall dimensions of pen core to identify pen core, for example, confirm the model of pen core according to the length of pen core.With the example that is identified as of two kinds of pen cores, a kind of pen core is wherein thicker and shorter, another kind of pen core relatively carefully and longer, as shown in Figure 3, on holder 201, have long pen core mounting groove 31 and short pen core mounting groove 32, holder is installed pen core place and is provided with observation window 34.Battery case 36 is arranged on holder 201.Long pen core mounting groove is provided with thimble 33 near 31 edges, and circuits for triggering plate 206 is connected with thimble 33.Pen core mounting groove is the cylinder of an end opening, and pen core is put into pen core mounting groove from the end 35 of opening, in the time that shorter pen core is placed into, thereby because it is compared with the thick and short bottommost contact thimble 33 that cannot be encased in holder; Otherwise in the time that longer pen core is placed into, its bottommost that can be encased in holder because it is narrower than, thereby touch thimble 33 so that circuits for triggering plate produces triggering signal, what the microprocessor on wiring board 209 can be identified current installation according to this triggering signal is long pen core or short pen core.

Below in conjunction with the use procedure of insulin syringe, explain for the control mode of the insulin syringe in the present embodiment.

In use, user is inserted pen core in holder, turn knob 208 is to arrange injected dose (for example, take U as unit, minimum tunable steps can be 0.1U), by dispensing end insert subcutaneous after, start injection along the direction push-turn key 208 of the arrow A in Fig. 2, injection will automatically stop after completing, and can send buzz reminding user and completed injection, can extract syringe needle.In said process, control system identification pen core type is (still with the example that is identified as of two kinds of above-mentioned pen cores, when pen core is placed into after holder, if control system is received triggering signal and is confirmed to be long pen core, otherwise be short pen core), read the geometric specifications of the type pen core, calculate the stroke of administration piston according to the injected dose of this size and selection, draw in administration process the number of total coils that motor need rotate from start to be administered to the process of administration according to the parameter of the trip and screw mandrel, decelerator and motor.Starting after injection, the rotation of motor is counted, can adopt infrared counting device to carry out this counting, in the time that motor rotates this number of total coils of arrival, motor is stopped.

Insulin syringe in this utility model embodiment can also have such as liquid crystal display screen of display device, is used for showing some information.The dose of for example setting in administration process is reducing gradually, until dosage is shown as " 0.0U ", it represents that infusion completes.And for example, control system can record the pen core type of each use, in the time using syringe, if the pen core type using and last time is inconsistent, can export corresponding suggestion content by display device, what for example show " N " it represents to use at present is thin and long pen core, and what show that " H " represent its use is short and thick pen core, to point out user to confirm whether pen core uses correctly.For another example, at display interface, enter journal function, it can check the infusion record of nearly 20 times, so that user checks the infusion record of insulin.

Storage device in control system can be preserved the injected dose arranging while use last time.Like this in the time that this uses without re-using knob setting, directly transferred the settings of last time by control system, for user brings convenience.This storage device can be preserved the injected dose of nearest a period of time in addition, and for example injection volume every day of nearly 20 days, is convenient to user and checks medicining condition in the past.

The above-mentioned specific embodiment, does not form the restriction to this utility model protection domain.Those skilled in the art should be understood that, depend on designing requirement and other factors, various modifications, combination, sub-portfolio can occur and substitute.Any modification of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in this utility model protection domain.

Claims

1. an insulin syringe, comprises the holder for fixing insulin pen-cartridge, for driving the drive system of administration piston of described insulin pen-cartridge, it is characterized in that,

In described holder, comprise trigger mechanism, send corresponding triggering signal for the different geometric specifications according to described insulin pen-cartridge;

Described insulin syringe also comprises control system, for according to the motion of drive system described in the dosage information control of described triggering signal and reception with stop.

2. insulin syringe according to claim 1, is characterized in that, described drive system comprises screw mandrel, decelerator and motor, wherein:

Described screw mandrel is used for promoting described administration piston;

Described decelerator is connected with described screw mandrel;

The output shaft of described motor is connected with described decelerator, drives described screw mandrel via described decelerator.

3. insulin syringe according to claim 2, is characterized in that, described insulin syringe also comprises counting assembly, rotates the number of turns for recording described motor.

4. insulin syringe according to claim 3, is characterized in that, described counting assembly is infrared counting device.

5. insulin syringe according to claim 1, is characterized in that,

Described holder comprises having long pen core mounting groove, and is placed in the short pen core mounting groove in described long pen core mounting groove, and thimble and circuits for triggering plate; Described circuits for triggering plate for sending described triggering signal in the situation that described thimble contacts with described pen core; Described control system is connected with described circuits for triggering plate, and according to whether receiving that described triggering signal determines the geometric specifications of pen core.

6. according to the insulin syringe described in any one in claim 1 to 5, it is characterized in that, described insulin syringe also comprises display device, for showing the information of described control system output.

7. according to the insulin syringe described in any one in claim 1 to 5, it is characterized in that, in described control system, comprise storage device, this storage device is used for preserving dosage configuration information.

8. according to the insulin syringe described in any one in claim 1 to 5, it is characterized in that, also comprise information setting device, for dosage information is set.

9. insulin syringe according to claim 8, is characterized in that, in described information setting device, comprises knob, for dosage information being set by rotating described knob.