CN203861706U

CN203861706U - Two-piece type self-destroying injector

Info

Publication number: CN203861706U
Application number: CN201420147953.6U
Authority: CN
Inventors: 郑成华; 罗礼成; 王子军; 王京京; 靳海若
Original assignee: ZHUHAI KINDLY MEDICAL DEVICES CO Ltd
Current assignee: Guangdong Kantlai Medical Equipment Group Co ltd
Priority date: 2014-03-28
Filing date: 2014-03-28
Publication date: 2014-10-08
Anticipated expiration: 2024-03-28

Abstract

The utility model discloses a two-piece self-destroying injector. The two-piece self-destroying injector comprises an outer sleeve of the injector and a core rod located in the outer sleeve of the injector. The upper end of the outer sleeve of the injector is provided with a conical head; the core rod is of a cross-shaped rib structure and comprises an upper core rod part and a lower core rod part which are connected through a fragile structure, the upper end of the upper core rod is provided with a sealing disc, the outer circumferential wall of the sealing disc is tightly attached to the inner wall of the outer sleeve of the injector, and the center of the upper end face of the sealing disc is provided with a buckle part; the conical head of the outer sleeve of the injector is sleeved with a sheath, and a non-return part corresponding to the buckle part is arranged on the inner wall of the sheath. After conventional injection is finished, the core rod is clamped by the sheath to lock up the injector, and the core rod will fracture if pulled again, so that the injector is prevented from being used again; the disposable two-piece injector is prevented from being used secondarily, and usage safety is ensured.

Description

A kind of two-piece type self-destroyed syringe

Technical field

This utility model relates to a kind of two-piece type self-destroyed syringe.

Background technology

On existing market, the syringe of two formulas is uncommon, and two formula syringes are made up of overcoat, core bar and supporting entry needle, owing to not using rubber piston, can avoid the generation because of rubber piston precipitate completely, user is produced to the generation of sensitivity response.But existing two formula syringes, all do not provide the function of automatic breaking-up, the type self-destroyed design of right and wrong, cannot self-destruction after hospital nurse uses, and abandons probability and hidden danger that rear existence is secondary use.

Summary of the invention

The purpose of this utility model, provides a kind of simple in structure and have a two-piece type self-destroyed syringe of self-destroying function exactly in order to address the above problem.

The purpose of this utility model is achieved in that

A kind of two-piece type self-destroyed syringe of the present utility model, comprise syringe jacket and the core bar that is positioned at this syringe jacket, the upper end of described syringe jacket is provided with conehead, described core bar is cross-rib structure, comprise stem and lower stem, described upper stem adopts easily broken structure to be connected with lower stem, the upper end of described upper stem is provided with a sealed disc, the outer circle wall of described sealed disc and described syringe jacket inwall fit tightly, the center of described sealed disc upper surface is provided with a clamping part, on the conehead of described syringe jacket, be arranged with a sheath, described jacket inner wall is provided with the non-return portion corresponding with described clamping part.

Above-mentioned a kind of two-piece type self-destroyed syringe, wherein, described easily broken structure comprises five round table-like junction points of being located at described upper stem and lower stem junction, one of them junction point is located at the center of described core bar cross section, all the other four points of connection are positioned at the junction point setting of center and crosswise distribution around this.

Above-mentioned a kind of two-piece type self-destroyed syringe, wherein, the middle part of described non-return portion is provided with circular perforations, described non-return portion surrounds round by four latches and forms, and be provided with gap between adjacent latch, described latch is for being tilted to upper setting, and one end of described latch is fixed on the inwall of described sheath, and the other end arranges towards described sheath central shaft.

Above-mentioned a kind of two-piece type self-destroyed syringe, wherein, the angle between described adjacent latch is 120-150 degree.

Above-mentioned a kind of two-piece type self-destroyed syringe, wherein, described easily broken structure is positioned at 25-35mm place, described sealed disc below.

Above-mentioned a kind of two-piece type self-destroyed syringe, wherein, described syringe jacket adopts medical grade PP to make.

Above-mentioned a kind of two-piece type self-destroyed syringe, wherein, described core bar adopts medical grade PE to make.

Above-mentioned a kind of two-piece type self-destroyed syringe, wherein, described sheath adopts ABS to make.

This utility model, after conventional injection completes, blocks after core bar sheath, completes locking function, again pulls core bar, and core bar can produce fracture, avoids reusing, and prevents that disposable two formula syringes are secondary use, and ensures and uses safety.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the structural representation of core bar in this utility model;

Fig. 3 is the cutaway view along A-A direction in Fig. 2;

Fig. 4 is the cutaway view of sheath in this utility model;

Fig. 5 is the top view of Fig. 4.

Detailed description of the invention

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Refer to Fig. 1 and Fig. 2, this utility model two-piece type self-destroyed syringe, comprise syringe jacket 1 and the core bar 2 that is positioned at this syringe jacket 1, the upper end of syringe jacket 1 is provided with conehead 11, core bar 2 is cross-rib structure, core bar 2 comprises stem 21 and lower stem 22, upper stem 21 adopts easily broken structure 25 to be connected with lower stem 22, the upper end of upper stem 21 is provided with a sealed disc 23, the outer circle wall of sealed disc 23 and syringe jacket 1 inwall fit tightly, the center of sealed disc 23 upper surfaces is provided with a clamping part 24, on the conehead 11 of syringe jacket 1, be arranged with a sheath 3, sheath 3 inwalls are provided with the non-return portion 31 corresponding with clamping part 24, easily broken structure 25 is positioned at sealed disc 23 25-35mm places, below.

Refer to Fig. 3, easily broken structure 25 comprises five round table-like junction points 251,252 of being located at stem 21 and lower stem 22 junctions, wherein junction point 251 is located at the center of core bar 2 cross sections, all the other four points of connection 252 arrange around this junction point 251, and crosswise distribution, four points of connection 252 is located at respectively on the cross section of corresponding muscle rib.

Refer to Fig. 4 and Fig. 5, the middle part of non-return portion 31 is provided with circular perforations 32, non-return portion 31 surrounds round by four latches 311 and forms, and between adjacent latch 311, be provided with gap, this gap is 0.8mm, and latch 311 is for being tilted to upper setting, one end of latch 311 is fixed on the inwall of sheath 3, the other end is towards sheath 3 central shaft settings, and the angle between adjacent latch 311 is 120-150 degree, and four are obliquely installed latch 311 and have formed a containing cavity 33.

Syringe jacket 1 adopts medical grade PP to make, and core bar 2 adopts medical grade PE to make, and sheath 3 adopts ABS to make.

After conventional injection completes, sheath 3 is sheathed on the conehead 11 of syringe jacket 1, promote core bar 2, make the clamping part 24 of core bar 2 front ends enter the containing cavity 33 of non-return portion 31 and by circular perforations 32, latch 311 falls in the groove of clamping part 24 locked clamping part 24, and core bar 2 is prevented from drawing back, again pull core bar 2, on core bar 2, the junction point 251,252 of easily broken structure 25 is pulled off, and upper stem 21 is left in syringe jacket 1, and syringe cannot be reused.

Above embodiment is only for illustration of the utility model, but not to restriction of the present utility model, person skilled in the relevant technique, in the situation that not departing from spirit and scope of the present utility model, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present utility model, should be limited by each claim.

Claims

1. a two-piece type self-destroyed syringe, comprise syringe jacket and the core bar that is positioned at this syringe jacket, the upper end of described syringe jacket is provided with conehead, described core bar is cross-rib structure, it is characterized in that, described core bar comprises stem and lower stem, described upper stem adopts easily broken structure to be connected with lower stem, the upper end of described upper stem is provided with a sealed disc, the outer circle wall of described sealed disc and described syringe jacket inwall fit tightly, the center of described sealed disc upper surface is provided with a clamping part, on the conehead of described syringe jacket, be arranged with a sheath, described jacket inner wall is provided with the non-return portion corresponding with described clamping part.

2. a kind of two-piece type self-destroyed syringe as claimed in claim 1, it is characterized in that, described easily broken structure comprises five round table-like junction points of being located at described upper stem and lower stem junction, one of them junction point is located at the center of described core bar cross section, all the other four points of connection are positioned at the junction point setting of center and crosswise distribution around this.

3. a kind of two-piece type self-destroyed syringe as claimed in claim 1, it is characterized in that, the middle part of described non-return portion is provided with circular perforations, described non-return portion surrounds round by four latches and forms, and be provided with gap between adjacent latch, described latch is for being tilted to upper setting, and one end of described latch is fixed on the inwall of described sheath, and the other end arranges towards described sheath central shaft.

4. a kind of two-piece type self-destroyed syringe as claimed in claim 3, is characterized in that, the angle between described adjacent latch is 120-150 degree.

5. a kind of two-piece type self-destroyed syringe as claimed in claim 1, is characterized in that, described easily broken structure is positioned at 25-35mm place, described sealed disc below.

6. a kind of two-piece type self-destroyed syringe as claimed in claim 1, is characterized in that, described syringe jacket adopts medical grade PP to make.

7. a kind of two-piece type self-destroyed syringe as claimed in claim 1, is characterized in that, described core bar adopts medical grade PE to make.

8. a kind of two-piece type self-destroyed syringe as claimed in claim 1, is characterized in that, described sheath adopts ABS to make.