CN202951068U

CN202951068U - Novel self-destruction injection syringe

Info

Publication number: CN202951068U
Application number: CN 201220133337
Authority: CN
Inventors: 周婉文
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-31
Filing date: 2012-03-31
Publication date: 2013-05-29
Anticipated expiration: 2022-03-31

Abstract

The utility model discloses a novel self-destruction injection syringe. The novel self-destruction injection syringe is characterized in that a core rod is divided into an upper core rod and a lower core rod, an inclined cylinder body is arranged at the upper end of the upper core body, the inclined cylinder body and the upper core body are not concentric, and a spherical body is arranged at the head portion of the inclined cylinder body. When being pressed, the spherical body enters an inner hole of a cylinder neck and penetrates through the back portion of the cylinder neck to be clamped at the upper end of the cylinder neck. When a pressing handle arranged at the lower end of the lower core rod is pulled backward, the lower core rod and the upper core rod can be separated, and the novel self-destruction injection syringe can achieve complete self destruction and cannot be used again. A limiting slice arranged at the side of the lower core rod can avoid the self-destruction of the novel self-destruction injection syringe when products are transported and soup is diluted. The novel self-destruction injection syringe is reasonable in design and convenient to use, brings benefits to the broad related crowd of people receiving injection and eliminates repeating use of injection syringes. In addition, the novel self-destruction injection syringe is appropriate for large-scale production and manufacture and replaces existing disposable syringes.

Description

A kind of novel self-destroyed syringe

Technical field:

This utility model relates to the technical field of medical apparatus and instruments, specifically a kind of self-destroyed syringe.

Background technology:

China causes dead case load up to 390,000 examples because of unsafe injection every year according to statistics, directly expends medical expense up to 1,000,000,000 yuans.Main cause is that to reuse disposable syringe, needle sharing and offal treatment improper etc., and then infects, as: the infectious diseases such as hepatitis B, pulmonary tuberculosis, acquired immune deficiency syndrome (AIDS).Generation for fear of above-mentioned event, the self-destructive syringe that some are novel has appearred on market, for example: the injection discharge opeing punctures plug on earth the time, avoid reusing, or put a steel disc on core bar, discharge opeing is about on earth core bar and is stuck in overcoat, but production technology is all too complicated, and cost of manufacture is all higher than existing disposable syringe.

The utility model content:

The purpose of this utility model is to provide a kind of New forced self-destroyed syringe, simple to operate during use, and self-destroying function rational in infrastructure is high, production technology is simple, but and automated production, production cost and existing disposable syringe are just the same, can replace existing disposable syringe.

To achieve these goals, the technical solution of the utility model is: a kind of novel self-destroyed syringe, it mainly comprises syringe, syringe needle, upper core bar, scalene cylinder, it is characterized in that: described upper core bar is provided with upper and lower two ends, lower end is cone, upper end is provided with scalene cylinder, this scalene cylinder and upper core bar be not on same axle center, the scalene cylinder head is provided with spheroid, in injection process, this spheroid can be entered in the endoporus of a neck by the cylinder neck lower end compressing of syringe, and through the endoporus of cylinder neck to the inner chamber of syringe needle, the salient angle of spheroid lower end will be stuck between the inner chamber of the upper end of a neck and syringe needle, the upper end of lower core bar is provided with the core bar connector, be provided with mesopore in this connector, the cone of upper core bar lower end is combined into one core bar after inserting, the salient angle of spheroid lower end will be stuck in a neck, pull back again lower core bar press hands the time, lower core bar and upper core bar can be thrown off.

This utility model reaches the function of self-destruction with the simplest structure, stop the reusable problem of syringe, the core technology of this patent is, the circular scalene cylinder of upper core bar upper end and core bar be not on same centrage, in injection process, the thrust that promotes core bar is straight line force, scalene cylinder is entered a neck inside by the cylinder neck lower end compressing of syringe, when the spheroid of head passes the cylinder neck, scalene cylinder restores to the original state resilience, and the salient angle under the spheroid of head can be stuck in the junction of a neck top outer rim and syringe needle inner chamber, now this syringe can't reuse and reach the state of self-destruction, pull back again lower core bar press hands the time, lower core bar meeting separates with the upper core bar that is stuck in a neck, thoroughly damage this syringe, in order to prevent in transportation and during dilute liquid medicine, scalene cylinder enters in a neck and the damage syringe, being provided with margining tablet on lower core bar body controls.The reasonable in design of present technique, accurate, practical, all have its advantage enhancing productivity, control on product quality, existing automation equipment can be produced, and production cost is the same with existing disposable syringe, can replace existing disposable syringe fully, be easy to promote.

The accompanying drawing explanation:

Fig. 1 is this utility model structural representation

Fig. 2 is core bar profile on this utility model

Fig. 3 is core bar profile under this utility model

Fig. 4 is this utility model accessory assembling schematic diagram

Fig. 5 is this utility model dilute liquid medicine schematic diagram

Fig. 6 is that this utility model is removed the margining tablet schematic diagram

Fig. 7 is that this utility model scalene cylinder enters a neck schematic diagram

Fig. 8 is this utility model self-destruction schematic diagram

In figure: on 1 11 of syringes neck, 2 syringe needle 21 inner chamber 3

plugs

4,5 times core bars of core bar 41 scalene cylinder 42 spheroid 43 cone 421 salient angles, 51 margining tablets 52 are pressed hands 53 core bar connector 54 mesopore 6 medicinal liquids

The specific embodiment:

Below in conjunction with drawings and Examples, this utility model is further described.

This utility model as shown in fig. 1, it mainly comprises syringe 1, the cylinder neck 11 of syringe upper end, be installed in the syringe needle 2 on a neck 11, be arranged on upper core bar 4 and lower core bar 5 in syringe 1, it is different from prior art and is: described upper core bar 4 is provided with upper and lower two ends, upper end is provided with a scalene cylinder 41, this scalene cylinder 41 and upper core bar 4 be not on same axle center, the head of scalene cylinder 41 is provided with spheroid 42, the external diameter of this spheroid 42 is less than the internal diameter of syringe 1 upper end cylinder neck 11, the lower end of spheroid is provided with salient angle 421, the lower end of upper core bar 4 is cone 43, above the diameter of core bar 4 lower ends is less than the diameter of upper end, as shown in Fig. 2 Fig. 3, lower core bar 5 sides are provided with margining tablet 51, lower end is provided with presses hands 52, upper end is provided with the core bar connector 53 be connected with upper core bar, be provided with mesopore 54 in this core bar connector 53, this mesopore 54 can allow the cone 43 of core bar 4 insert, make core bar become one, the diameter of upper core bar 4 lower end cones 43 is greater than the diameter of the mesopore 54 of core bar connector 53, as shown in Figure 4, the cone of upper core bar 4 43 is inserted in the mesopore 54 of lower core bar 5, again seal rubber plug 3 is contained in to the upper end of upper core bar 4, again syringe needle 2 is installed on the cylinder neck 11 of syringe 1, as shown in Figure 5, upper core bar 4 and lower core bar 5 need be greater than the negative pressure while extracting medicinal liquid in conjunction with frictional force, while extracting medicinal liquid, upper core bar 4 and lower core bar 5 just can not thrown off, as shown in Figure 6 dilution or extract medicinal liquid 6 complete after, first remove the margining tablet 51 of lower core bar 5 sides during injection, as shown in Figure 7, during injection, the thrust that promotes core bar is linearly to transmit, because of scalene cylinder 41 and upper core bar 4 not on same axle center, head spheroid 42 can be entered by the inboard compressing of low side of the cylinder neck 11 of syringe 1 upper end the endoporus of a

neck

11, 41 of scalene cylinders are bending, as shown in Figure 8, when having injected push rod and having shifted the end onto, scalene cylinder 41 head spheroides 42 meetings are through the endoporus of the cylinder neck 11 of syringe 1 upper end, scalene cylinder 41 can restore to the original state in resilience, and head spheroid 42 is amesiality, the salient angle 421 of lower end will be stuck in 21 li of the inner chambers of the top of a neck 11 and syringe needle 2, that pulls back lower core bar 5 presses hands 52 again, lower core bar 5 meetings and the upper core bar 4 that is stuck in a neck 11 break away from, this syringe i.e. thoroughly damage, definitely can't reuse.

Claims

1. a novel self-destroyed syringe, it mainly comprises syringe (1), syringe needle (2), upper core bar (4), scalene cylinder (41), it is characterized in that: described upper core bar (4) is provided with upper and lower two ends, lower end is cone (43), upper end is provided with scalene cylinder (41), this scalene cylinder (41) and upper core bar (4) be not on same axle center, scalene cylinder (41) head is provided with spheroid (42), in injection process, this spheroid (42) can be entered in the endoporus of a neck (11) by cylinder neck (11) the lower end compressing of syringe (1), and through the endoporus of cylinder neck (11) to the inner chamber (21) of syringe needle (2), the salient angle (421) of spheroid (42) lower end will be stuck between the inner chamber (21) of the upper end of a neck (11) and syringe needle (2), the upper end of lower core bar (5) is provided with core bar connector (53), be provided with mesopore (54) in this connector (53), the cone (43) of upper core bar (4) lower end is combined into one core bar after inserting, the salient angle (421) of spheroid (42) lower end will be stuck in a neck (11), pull back again lower core bar (5) press hands (52) time, lower core bar (4) and upper core bar (5) can be thrown off.

2. by a kind of novel self-destroyed syringe claimed in claim 1, it is characterized in that the external diameter of spheroid (42) of scalene cylinder (41) head of core bar (4) upper end is less than the internal diameter of syringe needle upper end cylinder neck (11).

3. by a kind of novel self-destroyed syringe claimed in claim 1, it is characterized in that the diameter of core bar (4) lower end is less than the diameter of upper end.

4. by a kind of novel self-destroyed syringe claimed in claim 1, it is characterized in that the diameter of core bar (4) lower end cone (43) is greater than the diameter of the mesopore (54) of core bar connector (53).