CN205108582U - One -off self -destroyed syringe - Google Patents

Abstract

The utility model discloses an one -off self -destroyed syringe, including syringe needle seat, injection tube, rubber buffer and injection pole, the syringe needle seat fix at the injection tube front end, injection pole front end links firmly with the rubber buffer through setting up the dog, the dog setting is inside the rubber buffer, the dog front end be provided with with syringe needle seat hole assorted pole head, dog and pole head junction set up a V type flute profile and become first easy breakpoint, the syringe needle seat in be provided with and carry out spacing fixed establishment to the pole head, the injection pole on be provided with the 2nd V type flute profile and become the easy breakpoint of second. This disposable syringe can block up the syringe needle seat, can also realize injecting the self -destruction of pole, can be effectual prevention for repetitive clear of a signal used on the root problem, ensure medical safety.

Description

A kind of re-use preventing once-used syringe

[technical field]

This utility model relates to technical field of medical instruments, is specifically related to a kind of re-use preventing once-used syringe.

[background technology]

Use in a large number on the market at present and sell remain traditional disposable syringe, because it does not possess safety and self-destroying function, particularly illegally reclaim, reuse phenomenon and be difficult to wipe out, especially used disposable syringe is easy to illegally to be reclaimed by lawless person, all put middle-size and small-size clinic and reuse.There is very big potential safety hazard in Clinical practice, bring problem also to harmless treatment thereafter.

It is be separated discarded with syringe body by injection rod that conventional shot device is destroyed.Personnel cost is high, operates not nimble, and fundamentally can not solve and prevent from reusing problem.

[utility model content]

This utility model provides a kind of re-use preventing once-used syringe, and this disposable syringe can block needle holder, can also realize the self-destruction of injection rod, can effectively stop to reuse problem from root, guarantee medical safety.

In order to solve the problems of the technologies described above, this utility model adopts following technical scheme to be achieved:

A kind of re-use preventing once-used syringe, comprises needle holder, injection tube, rubber stopper and injection rod; Described needle holder is fixed on injection tube front end, and injection rod front end is by arranging block and rubber stopper is connected, and block is arranged on rubber stopper inside; Described block front end is provided with the bar head matched with needle holder endoporus, and block and bar head junction arrange the first groove and form the first easy breakpoint, be provided with and carry out spacing fixed mechanism to bar head in described needle holder; Described injection rod is provided with the second groove and forms the second easy breakpoint.

Described fixed mechanism is draw-in groove clamping mechanism, comprises the draw-in groove arranged in needle holder, described bar head is arranged the boss mated with draw-in groove (2).

Described bar head and needle holder are interference fit and/or draw-in groove and boss is interference fit.

Described draw-in groove and the quantity of boss are 1 ~ 6.

Described draw-in groove and the quantity of boss are 4, and 4 draw-in grooves and boss are all arranged along cross structure.

Cambered surface is processed in described boss front end.

Described injection rod and bar head are rigid plastics and make, and the diameter at the first easy breakpoint place is less than the diameter at the second easy breakpoint place.

The diameter at the described first easy breakpoint place is 1.5 ~ 2mm, and the diameter at the second easy breakpoint place is 2.0 ~ 2.5mm.

The second described groove is arranged near block one end.

The first described groove and the second groove are V-type groove or the U-type groove of annular.

Relatively and prior art, this utility model has the following advantages:

A kind of re-use preventing once-used syringe of this utility model, by being provided with the bar head matched with needle holder endoporus in block front end, and arrange easy breakpoint, bar head just can be turned disconnected by rotary injection bar.Realize bar head blocking needle holder.Prevent from reusing.Injection rod is pulled out, when the second easy breakpoint stretches out injection tube, firmly injection rod can be broken disconnected, realize the destruction of injection rod.The effective potential safety hazard avoiding syringe to be used again from root.

Further, arrange draw-in groove and coordinate with boss, during rotation, bar head keeps motionless, rotation is fractureed and is more prone to.

Further, cambered surface is processed in boss front end, contributes to draw-in groove and coordinates with the easy of boss, avoid repeatedly para-position.

Further, the diameter at the first easy breakpoint place is less than the diameter at the second easy breakpoint place, prevents when rotated, and situation about rupturing first occurs the second easy breakpoint.

Further, the second groove is arranged near block one end, and it is very short that injection rod breaks the remainder of having no progeny, and is unfavorable for again operating, and prevents from again utilizing.

[accompanying drawing explanation]

Fig. 1 is the schematic diagram of syringe of the present utility model;

Fig. 2 is injection rod schematic diagram of the present utility model;

Fig. 3 is that Fig. 1 is along A-A sectional view;

Fig. 4 is that Fig. 2 is along B-B sectional view;

Fig. 5 is that bar head of the present utility model rotates the schematic diagram that fractures;

Fig. 6 is that injection rod of the present utility model breaks disconnected schematic diagram.

Description of reference numerals:

1, needle holder; 2, draw-in groove; 3, injection tube; 4, bar head; 5, rubber stopper; 6, injection rod; 7, block; 8, the second groove; 9, boss; 10, the first groove.

[detailed description of the invention]

Be described further this utility model below in conjunction with the drawings and specific embodiments, this utility model is not limited to following examples.

A kind of re-use preventing once-used syringe, as depicted in figs. 1 and 2, comprises needle holder 1, injection tube 3, rubber stopper 5 and injection rod 6; Needle holder 1 is fixed on injection tube 3 front end, and injection rod 6 front end is connected with rubber stopper 5 by arranging block 7, and it is inner that block 7 is arranged on rubber stopper 5; Block 7 front end is provided with the bar head 4 matched with needle holder 1 endoporus, and block 7 and bar head 4 junction arrange the first V-type groove 10 (or U-type groove) and form the first easy breakpoint, be provided with and carry out spacing draw-in groove 2 to bar head 4 in needle holder 1; Bar head 4 is arranged the boss 9 mated with draw-in groove 2.Injection rod 6 is provided with the second V-type groove 8 (or U-type groove) and forms the second easy breakpoint.Bar head 4 and needle holder 1 are interference fit and/or draw-in groove 2 is interference fit with boss 9.In order to draw-in groove 2 and boss 9 rapid-aligning, cambered surface is processed in boss 9 front end.Injection rod 6 and bar head 4 are rigid plastics and make, and the diameter at the first easy breakpoint place is less than the diameter at the second easy breakpoint place.The diameter at the first easy breakpoint place and the diameter at the second easy breakpoint place are 1.5 ~ 2mm.

As shown in Figure 3 and Figure 4, draw-in groove 2 is 1 ~ 6 with the quantity of boss 9, preferably 4, and 4 draw-in grooves 2 are all arranged along cross structure with boss 9.Draw-in groove 2 and boss 9 are rectangular configuration, are convenient to cooperatively interact.

During actual use, as shown in Figure 5 and Figure 6, when completing a shot, pushed by injection rod 6 bottom injection tube 3, it is inner that bar head 4 is inserted into needle holder 1, now draw-in groove 2 carries out mating buckle with boss 9, rotary injection bar 6 handle, just can be fractureed by bar head 4 easily, bar head 4 is separated with injection rod 6, and bar head 4 has been stayed in needle holder 1, achieve the effect of blocking needle holder 1.Reusing to more prevent further, injection rod 6 can be pulled out, when the second easy breakpoint stretches out injection tube 3, can firmly injection rod 6 be broken disconnected, realize the destruction of injection rod.

The above; it is only preferred embodiment of the present utility model; not this utility model is imposed any restrictions; every above embodiment is done according to this utility model technical spirit any simple modification, change and equivalent structure transformation, all still belong in the protection domain of technical solutions of the utility model.

Claims (10)

1. a re-use preventing once-used syringe, is characterized in that, comprises needle holder (1), injection tube (3), rubber stopper (5) and injection rod (6); Described needle holder (1) is fixed on injection tube (3) front end, injection rod (6) front end is connected with rubber stopper (5) by arranging block (7), and it is inner that block (7) is arranged on rubber stopper (5); Described block (7) front end is provided with the bar head (4) matched with needle holder (1) endoporus, block (7) and bar head (4) junction arrange the first groove (10) and form the first easy breakpoint, be provided with and carry out spacing fixed mechanism to bar head (4) in described needle holder (1); Described injection rod (6) is provided with the second groove (8) and forms the second easy breakpoint.

2. a kind of re-use preventing once-used syringe according to claim 1, it is characterized in that, described fixed mechanism is draw-in groove clamping mechanism, comprise the draw-in groove (2) arranged in needle holder (1), described bar head (4) above arranges the boss (9) mated with draw-in groove (2).

3. a kind of re-use preventing once-used syringe according to claim 2, is characterized in that, described bar head (4) and needle holder (1) for interference fit and/or draw-in groove (2) be interference fit with boss (9).

4. a kind of re-use preventing once-used syringe according to claim 2, is characterized in that, described draw-in groove (2) is 1 ~ 6 with the quantity of boss (9).

5. a kind of re-use preventing once-used syringe according to claim 4, it is characterized in that, described draw-in groove (2) is 4 with the quantity of boss (9), and 4 draw-in grooves (2) are all arranged along cross structure with boss (9).

6. a kind of re-use preventing once-used syringe according to claim 2, is characterized in that, cambered surface is processed in described boss (9) front end.

7. a kind of re-use preventing once-used syringe according to claim 1, is characterized in that, described injection rod (6) and bar head (4) are rigid plastics and make, and the diameter at the first easy breakpoint place is less than the diameter at the second easy breakpoint place.

8. a kind of re-use preventing once-used syringe according to claim 7, is characterized in that, the diameter at the described first easy breakpoint place is 1.5 ~ 2mm, and the diameter at the second easy breakpoint place is 2.0 ~ 2.5mm.

9. a kind of re-use preventing once-used syringe according to claim 1, is characterized in that, described the second groove (8) is arranged near block (7) one end.

10. a kind of re-use preventing once-used syringe according to claim 1, is characterized in that, described the first groove (10) and the second groove (8) are V-type groove or the U-type groove of annular.