CN103071207A

CN103071207A - Syringe with stab preventer

Info

Publication number: CN103071207A
Application number: CN2011103289537A
Authority: CN
Inventors: 冯忠; 冯志凌; 朱静娟; 黄煜; 冯祯宇
Original assignee: WUXI YUSHOU MEDICAL APPLIANCES CO Ltd
Current assignee: WUXI YUSHOU MEDICAL APPLIANCES CO Ltd
Priority date: 2011-10-26
Filing date: 2011-10-26
Publication date: 2013-05-01

Abstract

The invention provides a syringe with a stab preventer. After agent is injected by the syringe, the stab preventer is started, a connector and a safety sheath can be separated from a barrel, and thereby the utilization rate of a sharps box can be increased; because the connected parts of the connector and the barrel have specific size which is not matched with the international standard size, both the connector and the barrel cannot be combined with a syringe and an injection needle of the international standard for use any more after being separated; meanwhile, the connector and the barrel can be classified to be disposed and destroyed, and thereby resources and disposal cost are saved.

Description

Syringe with lunge-proof device

Technical field

The present invention relates to a kind of syringe with lunge-proof device, say more specifically the device that entry needle injection can shield to the injection needle point after complete, exempted from that medical worker and post processing personnel are stung by mistake may, belong to medical supplies.

Background technology

At present, both at home and abroad medical institutions also use conventional disposable syringe and other puncture instrument mostly and since conventional ordinary syringe puncture complete rear needle point can not be protected, sting medical worker's post processing personnel so be easy to mistake, comprise patient.In recent years, constantly have lunge-proof device such as safety injector, the beginnings such as safety indwelling needle are progressively promoted the use of international, domestic, but pin, the cutter that hurts easily human body with entry needle, cutter one class had a comparatively recycling during Destruction of standard.Especially in developed countries such as the U.S., Australia, Canada, Europe strict control sequence is arranged more, its charge expense is also different, used in pin with sharp weapon, the sharp disposable container that cutter will be placed in a sealing and destroyed again, thus with the anti-stab utensil of pin, cutter should design more few better.Can increase the utilization rate of sharp disposable container.The one, reduce resource; The 2nd, alleviated expense.And international and domestic most safety injector, such as the above safety injector of 20ml, it is individual greatly, the sharp disposable container utilization rate is little, is further improved.

Summary of the invention

Content of the present invention provides a kind of syringe with lunge-proof device, and this is invented at the complete startup lunge-proof device of injecting liquid drug, and union joint can separate with cylindrical shell, has increased the utilization rate of sharp disposable container.

The object of the present invention is achieved like this, and it is mainly by safety shield 1, union joint 2, and cylindrical shell 3, piston 4, push rod 5 forms.

It is characterized in that: safety shield is provided with folding tongue 6, interior hook 7, and hook plate 8, adapter sleeve 9, gear needle plate 10, the folding tongue can 180 upsets of spending.

It is characterized in that: union joint is provided with 6:100 GB joint 11, and GB female thread 12, external screw thread 13, inner chamber 14, inner cavity size are specific and GB mismatches.

It is characterized in that: cylindrical shell is provided with cylindrical shell joint 15, and the cylindrical shell joint dimension is specific and GB mismatches.

Because the two contact connecting portion of union joint, cylindrical shell is specific size, uncurrent with international standard, so the two all can not be combined with syringe, the entry needle of international standard after separating again, the two can be classified to process and destroy, resource and disposal cost have been saved, can not be reused again, avoid cross-contamination.

Description of drawings

Fig. 1 is overall structure sketch map of the present invention

Fig. 2 is cylindrical shell, piston, the sketch map after the push rod assembling

Fig. 3 is the sketch map of safety shield

Fig. 4 is the sketch map of union joint

Fig. 5 is for injecting the sketch map after complete rear safety device starts with needle point

Fig. 6 is the safety shield with needle point, the sketch map that union joint and cylindrical shell position break away from.

1. safety shields among the figure, 2. union joint, 3. cylindrical shell, 4. piston, 5. push rod 6. folding tongues, 7. interior hook, 8 hook plates, 9. fastening volume, 10. gear needle plate, 11.6:1000 joint, 12. female threads, 13. external screw threads, 14, inner chamber, 15, cylindrical shell joint.

The specific embodiment

The invention will be further described below in conjunction with concrete drawings and Examples.

As shown in the figure: at first be positioned at together the cylindrical shell front portion by push rod 5 cover upper pistons 4, such as Fig. 3, then Fig. 4 union joint is installed in the fastening volume 9 of Fig. 3, and 13 inner chambers 14 of the external screw thread on Fig. 4 union joint are spun on Fig. 2 cylindrical shell joint 15, because the two is tightly connected the interlock of external screw thread 13 and cylindrical shell female thread, such as Fig. 1, entry needle can be directly installed on the 6:100 joint 11 in the union joint 2, take off needle tip shield during use and carry out imbibition and injection, inject complete rear startup safety device, safety shield is by the upset of folding tongue through 180 °, and hook plate 7 is hooked on the hook plate 8, this moment, needle point was locked in the gear needle plate, such as Fig. 5 by gear needle plate 10.

The safety shield 1 with pin that this is finished using according to hospital's specification requirements, union joint 2 and cylindrical shell 3, rotatable disengaging stores classifiedly disposal.

Claims

1. syringe with lunge-proof device, it is by safety shield 1, union joint 2, cylindrical shell 3, piston 4, push rod 5. forms, it is characterized in that fastening the rolling tightly on the outer volume that is enclosed within the union joint female thread on the safety shield, then be spun on together on the cylindrical shell union joint that is positioned at cylindrical shell by the external screw thread on the union joint and inner chamber, because the female thread phase interlock on the external screw thread on the union joint and the cylindrical shell, the two is tightly connected, conventional general entry needle is to the complete rear startup lunge-proof device of patient injection on the 6:100 jiont treatment above the union joint, starts safety shield 1 behind the lunge-proof device, and union joint 2 can break away from cylindrical shell 3, because union joint 2, cylindrical shell 3, the contact connecting portion of the two is specific size, with international standard be uncurrent, so the two all can not be combined with syringe and the entry needle of other international standards after separating again, the two can process respectively destruction simultaneously.

2. a kind of syringe with lunge-proof device according to claim 1 is characterized in that: the upset that safety protective pack tongue can 180 °.

3. a kind of syringe with lunge-proof device according to claim 2 is characterized in that: safety protective pack tongue is through overturning after 180 °, and needle point is kept off the needle plate locking.