CN202355649U

CN202355649U - Syringe with puncture-proof device

Info

Publication number: CN202355649U
Application number: CN2011204127959U
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 Apparatus Co., Ltd.
Priority date: 2011-10-26
Filing date: 2011-10-26
Publication date: 2012-08-01
Anticipated expiration: 2021-10-26

Abstract

The utility model provides a syringe with a puncture-proof device. After infusion of liquid medicine is finished, the puncture-proof device is started, a connector and a safety protecting sleeve can be separated from a barrel, and utilization rate of an edge tool box is increased. As the size of a contact joint of the connector and the barrel is specific and does not match with the international standard size, after being separated, the connector and the barrel cannot be combined and used with an international standard syringe or an international standard entry needle again, and can be handled and destroyed in a classification manner, and resources and handling cost are saved.

Description

The syringe that has lunge-proof device

Technical field

This utility model relates to a kind of syringe that has lunge-proof device, can avoid medical worker and post processing personnel by the possibility of mistake thorn to injecting the device that needle point can shield after the entry needle of saying so more specifically injection finishes, and belongs to medical supplies.

Background technology

At present, medical institutions also use conventional disposable syringe and other puncture instrument mostly both at home and abroad, and the back needle point can not be protected because the puncture of conventional ordinary syringe finishes, and stings medical worker's post processing personnel so be easy to mistake, comprises patient.In recent years, constantly have lunge-proof device like safety injector, beginnings such as safety indwelling needle are progressively promoted the use of international, domestic, but to have pin, cutter that one type of entry needle, cutter hurts human body easily have one comparatively the recycling of standard destroy process.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 the pin that has sharp weapon, the sharp disposable container that cutter will be placed in a sealing and destroyed again, so have few more good more that the anti-stab utensil of pin, cutter should design.Can increase the utilization rate of sharp disposable container.The one, reduce resource; The 2nd, alleviated expense.And international and domestic most safety injector, like 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

This utility model content provides a kind of syringe that has lunge-proof device, and this invention is at the injecting liquid drug startup lunge-proof device that finishes, and union joint can separate with cylindrical shell, has increased the utilization rate of sharp disposable container.

The purpose of this utility model is achieved in that

It is mainly by safety shield 1, union joint 2, and cylindrical shell 3, piston 4, push rod 5 is formed,

It is characterized in that: the fastening rolling-in on the safety shield is enclosed within on the outer volume of union joint female thread; Be spun on together on the cylindrical shell union joint that is positioned at cylindrical shell by external screw thread on the union joint and inner chamber then; Because the female thread interlock mutually on the external screw thread on the union joint and the cylindrical shell, the two is tightly connected.

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

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 mismatching with GB.

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

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 used in combination with syringe, the entry needle of international standard after separating once more, the two can classification processing be destroyed, and has saved resource and disposal cost; Can not be repeated again to use, avoid cross-contamination.

Description of drawings

Fig. 1 is the overall structure sketch map of this utility model;

Fig. 2 is a 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 the sketch map that has after needle point injection finishing back safety device starts;

Fig. 6 is the safety shield that has 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. the folding tongue, 7. in hook, 8. hook plate, 9. fastening volume, 10. retaining needle plate, 11.6:100 joint, 12. female threads, 13. external screw threads, 14. inner chambers, 15. cylindrical shell joints.

The specific embodiment

Below in conjunction with concrete accompanying drawing and embodiment this utility model is described further.

As shown in the figure: at first be positioned at the cylindrical shell front portion together by push rod 5 cover upper pistons 4, like Fig. 3, Fig. 4 union joint is installed in the fastening volume 9 of Fig. 3 then; And 13 inner chambers 14 of the external screw thread on Fig. 4 union joint are spun on Fig. 2 cylindrical shell joint 15 and since the interlock of external screw thread 13 and cylindrical shell female thread the two be tightly connected, like Fig. 1; Entry needle can be directly installed on the 6:100 joint 11 in the union joint 2, takes off needle tip shield during use and carries out imbibition and injection, starts safety device after injection finishes; Safety shield is through the upset of folding tongue through 180 °; Hook plate 7 is hooked on the hook plate 8, and this moment, needle point was locked in the retaining needle plate, like Fig. 5 through retaining needle plate 10.

This safety shield that has pin 1 of finishing using, union joint 2 and cylindrical shell 3 according to hospital's specification requirements, rotatable disengaging stores classifiedly disposal.

Claims

1. syringe that has lunge-proof device, it is by safety shield (1), union joint (2), cylindrical shell (3), piston (4), push rod (5) is formed,

It is characterized in that the fastening rolling-in on the safety shield is enclosed within on the outer volume of union joint female thread; Be spun on together on the cylindrical shell union joint that is positioned at cylindrical shell by external screw thread on the union joint and inner chamber then; Because the female thread interlock mutually on the external screw thread on the union joint and the cylindrical shell, the two is tightly connected.

2. a kind of syringe that has lunge-proof device according to claim 1,

It is characterized in that: the upset that safety shield folding tongue can 180 °.