CN206463230U - Medical safety syringe - Google Patents

Abstract

The utility model discloses a kind of syringe, a kind of Medical safety syringe is especially disclosed, belongs to Design for Medical Device manufacturing technology field.A kind of simple in construction, filter effect, the high Medical safety syringe of filtered fluid quality are provided.Described Medical safety syringe, including containing mammillate syringe body, described Medical safety syringe also includes bi-directional filtered system, described bi-directional filtered system is arranged in described nipple, and the decoction for passing in and out the syringe body is successively filtered from different directions respectively by described bi-directional filtered system.

Description

Medical safety syringe

Technical field

The utility model is related to a kind of syringe, more particularly, to a kind of Medical safety syringe, belongs to medicine equipment and sets Count manufacturing technology field.

Background technology

At present, medicine adding syringe used in venous transfusion dosing is universal syringe.And existing universal syringe The function of all not filtered decoction.Typically in dosing, the rubber stopper of liquid medicine bottle can form rubber after being pricked by syringe needle Micro- material enters in liquid medicine with syringe needle, likewise, sealedly pedestrian is entered in the top of glass liquid medicine bottle again after being cut by small emery wheel Also glass granules can be formed when work breaks disconnected to enter in liquid medicine.And injecting or during intravenous infusion, rubber or glass these transfusion particles It can be injected with liquid medicine in patient, or intravenous infusion enters in blood and then each organ that human body is reached with blood.Such as lung Portion is organized, and each insulting organ-tissue even knurl becomes.The harm that liquid particle is produced to human body has been known thing It is real.

Currently, result of the above problems is generally all to use the precision infusion set with filtering function.This transfusion The valence bridge of device is more expensive compared with general infusion set, and the realization of its filtering function needs to realize by the effect of atmospheric pressure, And filter membrane is also relatively thin, filter effect is limited, so needing to change transfusion device after 3-5 bottles of 250ml liquid are transfused, could arrive Up to more preferable filtration.This is not only that patient adds apparatus and easily born, and also increases the work of nursing staff Burden, while can also increase the risk of transfusion.

Certainly, also other syringes with filterability in the prior art, but these syringes are generally all in note The thing of one layer of filter membrane of increase etc in the cylinder of emitter, but the syringe of this structure can not solve problem at all, because During filtering particulate of the absorption on filter membrane liquid is counter release cylinder when understand some again and reenter in decoction, do not reach The basic purpose for solving problem.

Utility model content

Technical problem to be solved in the utility model is：A kind of simple in construction, filter effect, filtered fluid matter are provided The high Medical safety syringe of amount.

It is to solve the technical scheme that is used of above-mentioned technical problem：A kind of Medical safety syringe, including contain nipple Syringe body, described Medical safety syringe also includes bi-directional filtered system, and described bi-directional filtered system is arranged in In described nipple, the decoction for passing in and out the syringe body is successively distinguished from different directions by described bi-directional filtered system Filtered.

The beneficial effects of the utility model are：The application in the nipple of syringe by setting a set of bi-directional filtered system System, makes the decoction of the turnover syringe body successively be carried out from different directions respectively by described bi-directional filtered system Filter, so, both can will be present in the external particulate of syringe cylinder when sucking liquid and be blocked in outside cylinder, and release cylinder Syringe itself a small amount of particulate that may be present can be blocked in again in cylinder during internal liquid, really realize that input is suffered from Zero particulate function of liquid in person's body.Simultaneously because the bi-directional filtered system of the application is provided in the nipple of syringe body , so its structure design is simple, it is convenient to manufacture, if it is individually independent, syringe can also be realized Reusability, to reduce the expense of patient.

It is further that described bi-directional filtered system includes switching mechanism and filtering bodies, is set in the inside of the nipple Accommodating chamber is equipped with, the filtering bodies being arranged in the accommodating chamber are divided into two not connected portions by described switching mechanism Point, the decoction of the syringe body is passed in and out under the control of the switching mechanism successively respectively from the different portions of the filtering bodies Divide and pass through.

Such scheme it is preferable that, described accommodating chamber is that the extroversion being arranged in the middle part of the nipple is raised, described Switching mechanism include flap valve and change-over switch, it is raised that described flap valve is arranged on described extroversion by described change-over switch In, the filtering bodies being arranged in extroversion projection are divided into two not connected parts by the flap valve；The turnover injection The decoction of device body successively leads to from the different piece of the filtering bodies respectively under the control for the flap valve that the change-over switch drives Cross.

It is further, the described raised circumferentially extending along the nipple of extroversion.

Such scheme it is preferable that, be provided with and concave on the export-oriented raised lateral wall circumferentially Round parentheses type hand held structures.

It is further that described filtering bodies are medical filtering cotton for wadding body.

It is further that described filtering bodies are medical screen pack.

It is further that to be provided with the nipple of bi-directional filtered system be an independent transition corpora mammillare, in described note Connection nipple is additionally provided with emitter body, one end of the transition corpora mammillare passes through described connection nipple and described injection Device body is connected, and the other end of the transition corpora mammillare is connected with syringe needle.

Brief description of the drawings

Fig. 1 is structural representation when the utility model Medical safety syringe is not used；

Fig. 2, Fig. 3 are the structural representation after the utility model Medical safety syringe use.

Marked in figure：Nipple 1, syringe body 2, bi-directional filtered system 3, switching mechanism 4, filtering bodies 5, accommodating chamber 6, Flap valve 7, change-over switch 8, round parentheses type hand held structures 9, transition corpora mammillare 10, connection nipple 11.

Embodiment

It is a kind of simple in construction, the filter effect that the utility model is provided, liquid after filtering as shown in Figure 1, Figure 2 and shown in Fig. 3 The high Medical safety syringe of weight.Described Medical safety syringe includes the syringe body 2 containing nipple 1, described Medical safety syringe also include bi-directional filtered system 3, described bi-directional filtered system 3 is arranged in described nipple 1, entered The decoction for going out the syringe body 2 is successively filtered from different directions respectively by described bi-directional filtered system 3.This Shen Please by setting a set of bi-directional filtered system 3 in the nipple 1 in syringe, make the decoction of the turnover syringe body 2 successively Filtered, so, can both be will be present in when sucking liquid from different directions respectively by described bi-directional filtered system 3 The external particulate of syringe cylinder is blocked in outside cylinder, and can be possible by syringe itself when releasing the liquid in cylinder The a small amount of particulate existed is blocked in cylinder, really realizes zero particulate function of liquid in input patient's body.Simultaneously because this The bi-directional filtered system 3 of application is provided in the nipple 1 of syringe body 2, so its structure design is simple, manufacture It is convenient, if it is individually independent, the Reusability of syringe can also be realized, to reduce the expense of patient.

In above-mentioned embodiment, manufacture and use for convenience, while simplify structure to greatest extent, it is described herein Bi-directional filtered system 3 includes switching mechanism 4 and filtering bodies 5, and accommodating chamber 6 is internally provided with the nipple 1, is arranged in described Filtering bodies 5 in accommodating chamber 6 are divided into two not connected parts by described switching mechanism 4, pass in and out the syringe sheet Different piece of the decoction of body 2 successively respectively from the filtering bodies 5 under the control of the switching mechanism 4 passes through；Now set Accommodating chamber 6 in the inside of the nipple 1 is preferably arranged on the extroversion projection at the middle part of nipple 1, described switching mechanism 4 Including flap valve 7 and change-over switch 8, described flap valve 7 is arranged on by described change-over switch 8 in described extroversion projection, cloth The filtering bodies 5 put in extroversion projection are divided into two not connected parts by the flap valve 7；Pass in and out the syringe sheet The decoction of body 2 successively leads to from the different piece of the filtering bodies 5 respectively under the control for the flap valve 7 that the change-over switch 8 drives Cross；And it is preferably the described raised circumferentially extending along the nipple 1 of extroversion, raised in the extroversion circumferentially The round parentheses type hand held structures 9 concaved are provided with lateral wall.Meanwhile, in order to improve the effect of particulate in filtered fluid, this The described filtering bodies 5 of application can be with medical screen pack, but preferably medical filtering cotton for wadding body.

As described in the beneficial effect in the application, in order to reduce the usage amount of disposable product, ensureing safety Under the premise of as far as possible reach recyclings, the nipple 1 for being provided with bi-directional filtered system 3 of the application is an independent transition nipple Body 10, is additionally provided with connection nipple 11 on described syringe body 2, and one end of the transition corpora mammillare 10 passes through described Connection nipple 11 is connected with described syringe body 2, and the other end of the transition corpora mammillare 10 is connected with syringe needle.So, exist When making up a prescription, equivalent to only needing to change transition corpora mammillare 10, and syringe body need not can be changed, only when needing to match somebody with somebody Just need to consider to change different syringe bodies when making different types of liquid.

Claims (8)

1. a kind of Medical safety syringe, including the syringe body (2) containing nipple (1), it is characterised in that：Described is medical Safety injector also includes bi-directional filtered system (3), and described bi-directional filtered system (3) is arranged in described nipple (1), entered The decoction for going out the syringe body (2) is successively filtered from different directions respectively by described bi-directional filtered system (3).

2. Medical safety syringe according to claim 1, it is characterised in that：Described bi-directional filtered system (3) includes Switching mechanism (4) and filtering bodies (5), are internally provided with accommodating chamber (6) in the nipple (1), are arranged in the accommodating chamber (6) In filtering bodies (5) be divided into two not connected parts by described switching mechanism (4), pass in and out the syringe body (2) different piece of the decoction successively respectively from the filtering bodies (5) under the control of the switching mechanism (4) passes through.

3. Medical safety syringe according to claim 2, it is characterised in that：Described accommodating chamber (6) is is arranged on The extroversion stated in the middle part of nipple (1) is raised, and described switching mechanism (4) includes flap valve (7) and change-over switch (8), described flap valve (7) it is arranged on by described change-over switch (8) in described extroversion projection, is arranged in the filtering bodies (5) in extroversion projection It is divided into two not connected parts by the flap valve (7)；The decoction for passing in and out the syringe body (2) is opened in the conversion Under the control for the flap valve (7) for closing (8) driving, successively the different piece respectively from the filtering bodies (5) passes through.

4. Medical safety syringe according to claim 3, it is characterised in that：Described extroversion is raised along the nipple (1) circumferentially extending.

5. Medical safety syringe according to claim 4, it is characterised in that：In the export-oriented projection circumferentially Lateral wall on be provided with the round parentheses type hand held structures (9) concaved.

6. the Medical safety syringe according to claim 1,2,3,4 or 5, it is characterised in that：Described filtering bodies (5) are Medical filtering cotton for wadding body.

7. the Medical safety syringe according to claim 1,2,3,4 or 5, it is characterised in that：Described filtering bodies (5) are Medical screen pack.

8. Medical safety syringe according to claim 5, it is characterised in that：It is provided with the breast of bi-directional filtered system (3) Head (1) is an independent transition corpora mammillare (10), and connection nipple (11) is additionally provided with described syringe body (2), One end of the transition corpora mammillare (10) is connected by described connection nipple (11) with described syringe body (2), described The other end of transition corpora mammillare (10) is connected with syringe needle.