CN2675149Y - Disposable self-damaging safety syringe - Google Patents

Abstract

The utility model discloses a disposable self-damaging safety syringe, comprising a needle tube with a pricker, an airtight sheet which can be punctured on a core bar and a safety sheath provided at the outside of the needle tube. When injection is finished, owning to the airtight sheet arranged on the core bar, the airtight sheet is punctured by the pricker, and an injection needle loses the function of sucking and pushing the physic liquor. Thus, the injection needle can not be used for a second time; a safety casing tube is arranged on the needle tube, so, the injection needle can be placed in the safety casing tube after the syringe is used; the utility model can avoid the cross infection of users or other persons being punctured by the injection needle because of carelessness. The safety casing tube is arranged on the needle tube, which is convenient in use.

Description

The Disposable, self-destroying safety injector

Technical field: this utility model relates to a kind ofly imports intravital medical equipment with medium.

Background technology: existing medical syringe mostly is disposable syringe, this syringe preferably resolves the cross infection problem is taken place the patient, but discarded syringe still might be used by secondary, and after injection, often sheath is not set up, this is to user and destroy the syringe personnel and very easily damage, and causes cross infection therefrom.Even Hospice Center's cover is desired in the injection back, less because of sheath again, careless slightly when peace is worn, syringe injures skin, can cause cross infection equally, and therefore being badly in need of providing a kind of can not be used by secondary, and to user and the syringe that contacts with back syringe personal security.

Summary of the invention: the problem that this utility model exists at existing syringe, providing a kind of can not be used by secondary, and to user and the syringe that contacts with back syringe personal security.

The concrete technical scheme of this utility model institute technical solution problem: this utility model is a kind of Disposable, self-destroying safety injector, comprise entry needle, sheath, needle tubing, core bar, it is characterized in that: be shaped on location Xiao in needle tubing front end outside, be shaped on a pricker at the needle tubing inner bottom part, on pricker, be shaped on liquid-through hole, safe sleeve pipe is housed outside needle tubing, on the safety sleeve pipe, be shaped on positioning runner, containing mark, location Xiao on the needle tubing places in the telescopic positioning runner of safety, the needle tubing front end is equipped with entry needle, and sheath is housed on entry needle, at the core bar front end one plunger is housed, in plunger central authorities one through hole is arranged, be shaped on airtight thin slice at the core bar front end, be shaped on passage behind airtight thin slice, the core bar that has plunger is contained in the needle tubing.

Plunger is that elastomeric material is made, available plug, plastic plug.

The beneficial effects of the utility model: owing to airtight thin slice is arranged at the core bar front end, when injection is finished, airtight thin slice is punctured, make entry needle lose suction, push away the medicinal liquid function, thereby can not use by secondary, safe sleeve pipe is housed on needle tubing, cause syringe with after entry needle can be placed in the safe sleeve pipe, avoided user or contactee to cause cross infection because of being stabbed by entry needle accidentally.Safe sleeve pipe is contained on the needle tubing very easy to use, has practical value.

Description of drawings:

Fig. 1 is a Disposable, self-destroying safety injector structural representation;

Fig. 2 is a Disposable, self-destroying safety injector A-A sectional drawing;

Fig. 3 is a Disposable, self-destroying safety injector safety sleeve pipe positioning runner sketch map.

Among the figure 1, needle tubing; 2, pricker; 3, location Xiao; 4, core bar; 5, plunger; 6, airtight thin slice; 7, passage; 8, safe sleeve pipe; 9, positioning runner; 10, containing mark; 11, entry needle; 12, sheath; 13, liquid-through hole; 14, through hole.

The specific embodiment of the present utility model: be described with reference to the accompanying drawings Disposable, self-destroying safety injector structure, be shaped on location Xiao 3 of 2 * 2 * 2mm during with plastics compacting needle tubing 1 in syringe needle tube 1 front end outside, be shaped on the pricker 2 of band liquid-through hole 13 at needle tubing 1 inner bottom part, on safety sleeve pipe 8, be shaped on the positioning runner 9 of Fig. 3 form, and be printed on containing mark 10, safe sleeve pipe 8 is contained on the needle tubing 1, and location Xiao 3 is inserted in the positioning runner 9, be equipped with entry needle 11 at needle tubing 1 front end, sheath 12 is housed on entry needle 11, in rubber plunger 5 central authorities one through hole 14 is arranged, when making, leave airtight thin slice 6 at the core bar front end, leave passage 7 at airtight thin slice 6 rear portions, plunger 5 is contained in core bar 4 front ends, the core bar 4 that will have plunger 5 is contained in the needle tubing 1, during use, take off sheath 12, finish powder charge according to a conventional method, injection operation, when pushing away medicine and finish, the airtight thin slice on the thorn needle-penetration core bar of needle tubing bottom, make entry needle lose function of use, after injection, turn safe sleeve pipe and be pushed into needle tubing bottom, the sleeve pipe of turn safety again, with location Xiao's locked secure sleeve pipe, entry needle is placed within the safe sleeve pipe.

Claims (1)

1, a kind of Disposable, self-destroying safety injector, comprise entry needle, sheath, needle tubing, core bar, it is characterized in that: be shaped on location Xiao in needle tubing front end outside, be shaped on a pricker at the needle tubing inner bottom part, on pricker, be shaped on liquid-through hole, safe sleeve pipe is housed outside needle tubing, on the safety sleeve pipe, is shaped on positioning runner, containing mark, location Xiao on the needle tubing places in the telescopic positioning runner of safety, the needle tubing front end is equipped with entry needle, and sheath is housed on entry needle, at the core bar front end one plunger is housed, in plunger central authorities one through hole is arranged, be shaped on airtight thin slice at the core bar front end, be shaped on passage behind airtight thin slice, the core bar that has plunger is contained in the needle tubing.

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