CN2499047Y

CN2499047Y - Insulin injector aid

Info

Publication number: CN2499047Y
Application number: CN 01220024
Authority: CN
Inventors: 李卫; 季强; 李广君
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-04-24
Filing date: 2001-04-24
Publication date: 2002-07-10
Anticipated expiration: 2011-04-24

Abstract

The utility model discloses an insulin injector, which comprises a BD-needle fixed mechanism, a putter mobile mechanism and a cover. The putter mobile mechanism is contained inside the cover, in which the upper part is provided with the BD-needle fixed mechanism. An opening in which the BD-needle can be easily mounted and removed is arranged top-down on the cover along the axial direction. The lower part of the cover is arranged with a lower trumpet-shaped conical surface. The utility model in which the suffering of patients in injection can be reduced, is convenient to use with a simple structure.

Description

The insulin injector aid

This utility model relates to a kind of auxiliary implement of syringe, especially a kind of insulin injector aid.

The syringe of people's use at present often need penetrate skin with syringe needle by the strength of hands, and I am in 97220442.3 " Bangwo injection devices " of application on July 8th, 1997, the auxiliary implement that a kind of patient of help promptly penetrates injection needle skin is automatically disclosed, it comprises shell, spring hitch, spring, during use, spring hitch compresses spring, then needle tubing is put into shell, laterally stir spring hitch during injection, spring hitch and spring are broken away from, this moment syringe needle just under the driving of the restoring force of spring automatically, promptly inject in patient's the skin.But the syringe auxiliary implement of said structure still has the following disadvantages:

One, because syringe needle exposes outside, and the patient can see syringe needle, therefore usually can make the patient feel to have a kind of fear;

Two, since syringe not have fulcrum, syringe needle to penetrate the angle of skin when contacting with human body skin wayward, for there not being trained patient, increased the difficulty that the patient has an injection;

Three, because spring is arranged on the bottom of shell, increased the volume of shell, made the volume of injector aid excessive, and its shape is not easy to hands of patient and grips, spring inner is not supported cylinder, makes the spring less stable to that is to say that the restoring force direction of spring is accurate inadequately;

Four, because but the BD pin is positioned at the shell middle part of folding, the patient can't see the medicinal liquid in the needle tubing intuitively.

The purpose of this utility model provides a kind of insulin injector aid, and it can reduce the misery of patient when injection, and is easy to use, simple in structure.

The purpose of this utility model is achieved in that a kind of insulin injector aid, comprise BD pin fixed mechanism, push rod travel mechanism and cover body, the inner ccontaining push rod of cover body travel mechanism, the top of push rod is provided with BD pin fixed mechanism, cover body is offered the opening that can conveniently install and pull down the BD pin from top to bottom along axis direction, and the bottom of cover body has and is the trumpet-shaped conical surface down.

BD pin fixed mechanism comprises pressing plate, rag iron spring and card, and the top of push rod is provided with a pressing plate, is provided with a rag iron spring between pressing plate and the push rod, is with a card on the BD pin, and push rod is provided with platform, and card is stuck between the sawtooth portion of platform and pressing plate.

Push rod travel mechanism comprises positioning sliding block, button, button spring, inserting needle spring and gathering sill, and the push rod lower outer diameter is with the inserting needle spring, push rod be provided with cover body on the flange of bulge loop engagement limits inserting needle spring return distance; Also be provided with the groove that cooperates with the positioning sliding block installed on the cover body on the push rod, be provided with button and button spring in the positioning sliding block corresponding position.

Cover body is an oval cylinder.

The answer distance of inserting needle spring equals 2/3rds of syringe needle.

The following conical surface in the syringe needle corresponding position, its angle become 45 degree with the axis of syringe needle.

This utility model is owing to be provided with the conical surface down in the syringe needle corresponding position, following conical surface contact area is big, play the support positioning action to syringe on the one hand, has just in time blocked the sight line that the patient sees syringe needle on the other hand, can reduce patient's fear; Because it is 45 degree that the angle design of the following conical surface just in time makes the angle of syringe needle and skin, makes syringe needle penetrate skin easily, makes the patient simple to operate, patient's pain alleviates simultaneously; Because the answer of spring distance just in time equals 2/3rds of syringe needle, cooperate the fulcrum of the conical surface down, can guarantee that syringe needle enters the optimum depth of human body skin; Because spring outside push rod, can guarantee the accuracy of spring restoring force direction, thereby guarantee the direction initialization of syringe needle; Because the cover body profile is elliptical cylinder-shape, meet the human factor engineering principle, make things convenient for the patient to grip the application of force, and cover body top is open type, the patient can directly see the medicinal liquid in the BD pin, can grasp dwell time accurately.

Below in conjunction with concrete structure and the operation principle of accompanying drawing detailed description according to the insulin injector aid that the utility model proposes.

Cutaway view when Fig. 1 has entered human body for this utility model BD pin;

Fig. 2 is the sectional side view of Fig. 1.

As shown in Figure 1, 2, this utility model comprises BD pin fixed mechanism, push rod travel mechanism and cover body, cover body 11 is an oval cylinder, the ccontaining push rod of oval column body travel mechanism, the top of push rod is provided with BD pin fixed mechanism, the oval cylinder of cover body 11 is offered the opening that can conveniently install and pull down the BD pin from top to bottom along axis direction, and the bottom of cover body has and is the trumpet-shaped conical surface down.

Wherein, BD pin fixed mechanism comprises pressing plate 1, rag iron spring 2 and card 9.The top of push rod 3 is provided with a pressing plate 1, is provided with a rag iron spring 2 between pressing plate 1 and the push rod 3, is with a card 9 on the BD pin, and push rod 3 is provided with platform 31, and card 9 is stuck between the sawtooth portion of platform 31 and pressing plate 1.When the BD pin is installed, earlier with pressing plate 1 to A to moving, the block end extruding rag iron spring 2 of pressing plate 1, at this moment, card on the BD pin 9 is placed on the platform 31 of push rod 3, unclamp the hands of pinning pressing plate 1, pressing plate 1 is return under the effect of rag iron spring, and the platform 31 of its sawtooth portion and push rod 3 cooperates fixes the BD pin.

In addition, push rod travel mechanism comprises positioning sliding block 6, button 7, button spring 8, inserting needle spring 5 and gathering sill 10.Push rod 3 is column type, and the diameter of bottom is little than top, and lower outer diameter is with inserting needle spring 5, and push rod 3 is provided with the flange 32 that cooperates with bulge loop on the cover body, so that the return distance of restriction inserting needle spring; Also be provided with groove 33 on the push rod 3, when push rod 3 is upwards pulled up, can cooperate fixingly, and the inserting needle spring is stretched, be provided with button 7 and button spring 8 in positioning sliding block 6 corresponding positions with the positioning sliding block 6 installed on the cover body.

This utility model at first with pulling out pressing plate 1, is fixed on BD pin 4 in the syringe gathering sill in use, and backup plate spring 2 is fixed pressing plate return BD pin then; With hands with upwards pulling of push rod 3, up to positioning sliding block 6 snap in be fixed in the groove 33 upper; Then injector aid is bored the end face flicking down at the patient infusion position, press button 7, button spring 8 is discharged, push rod 3 will automatically be finished the inserting needle action rapidly downwards together with BD pin 4 this moment.

The answer distance of this utility model spring equals 2/3rds of syringe needle, enters the optimum depth of human body skin to guarantee syringe needle.

The following conical surface in the syringe needle corresponding position, its angle becomes 45 degree with the axis of syringe needle, make syringe needle penetrate skin easily, the patient is simple to operate, patient's pain alleviates simultaneously, and following conical surface contact area is big, can play the support positioning action to syringe, patient's sight line can be blocked in the side, reduces fear.

Claims

1, a kind of insulin injector aid, comprise BD pin fixed mechanism, push rod travel mechanism and cover body, it is characterized in that: the inner ccontaining push rod of cover body travel mechanism, the top of push rod is provided with BD pin fixed mechanism, cover body is offered the opening that can conveniently install and pull down the BD pin from top to bottom along axis direction, and the bottom of cover body has and is the trumpet-shaped conical surface down.

2, insulin injector aid as claimed in claim 1, it is characterized in that: BD pin fixed mechanism comprises pressing plate, rag iron spring and card, the top of push rod is provided with a pressing plate, be provided with a rag iron spring between pressing plate and the push rod, be with a card on the BD pin, push rod is provided with platform, and card is stuck between the sawtooth portion of platform and pressing plate.

3, insulin injector aid as claimed in claim 1, it is characterized in that: push rod travel mechanism comprises positioning sliding block, button, button spring, inserting needle spring and gathering sill, the push rod lower outer diameter is with the inserting needle spring, push rod be provided with cover body on the flange of bulge loop engagement limits inserting needle spring return distance; Also be provided with the groove that cooperates with the positioning sliding block installed on the cover body on the push rod, be provided with button and button spring in the positioning sliding block corresponding position.

4, insulin injector aid as claimed in claim 1 is characterized in that: cover body is an oval cylinder.

5, insulin injector aid as claimed in claim 1 is characterized in that: the answer distance of inserting needle spring equals 2/3rds of syringe needle.

6, insulin injector aid as claimed in claim 1 is characterized in that: the following conical surface in the syringe needle corresponding position, its angle become 45 degree with the axis of syringe needle.