CN2620549Y - Syringe with safety device - Google Patents

Abstract

An injector with a safety apparatus comprises a needle tube, a needle and a handspike. The safety apparatus is provided with a sliding jacket, the internal sleeve of the sliding jacket is provided with a fixed seat on the needle tube, the sliding sleeve can clip the external side of the fixed seat through sliding, and the end of the sliding seat is provided with a fold safe lid. The sliding sleeve is a hollowed column, with one end pivoted with the safety lid through pivot and the other end provided with a shoulder part on the edge of the internal diameter, the shoulder part is in touch with the counterpart of the external diameter of the fixed seat. One end of the safety lid is connected with the sliding sleeve through elastic pivot, the other end clips with the clipping groove. The utility model ensures hygiene, prevents the injector from reusing, and avoids the needle from exposing, thereby protects the medical staff from injury due to stab, meanwhile, prevents from infection and improves safety.

Description

Syringe with safety device

Technical field

This utility model relates to a kind of syringe, relates in particular to a kind of health, and needle body is not exposed, and medical personnel are not stabbed, and avoids being infected, and improves the syringe with safety device of safety.

Background technology

See also shown in Fig. 1,2, conventional syringe comprises an injection tube 80, one is assembled in the syringe needle group 81 of injection tube 80 front ends, one is assembled in the push rod 82 in the injection tube, this push rod 82 can upper and lower slip in injection tube 80, injection tube 80 front ends are provided with front aperture 801, injection tube end after 80s is provided with plane button and refers to sheet 802, syringe needle group 81 comprises needle body 811 and needle stand 812, needle body 811 1 ends are fixed in needle stand 812 front ends, utilize a needle guard 83 again, can be after using syringe, be placed on the needle stand 812, avoid stabbing medical personnel.

For medical personnel, suffer that it is the employment injuries of normal generation that acupuncture and sharp object are stabbed, the wound that acupuncture causes is also little, but the thing followed is that fatefulue harm is arranged, because used syringe has the blood or the body fluid of sufferer, belongs to contaminated utensil, if healthy medical personnel are stabbed by it, may be infected, and life-threatening safety, the action of wherein recovering needle guard is the easiest to be injured by syringe.For the research and development of safety injector, focus on the program of avoiding back lid more.And conventional syringe is to guarantee reliable safeguard protection; therefore develop safety syringe-drum; for example adnexa one and adnexa two; wherein adnexa one is announced " being easy to the safe syringe with the push rod dismounting " novel patent No. 471323 for Taiwan; it is after the push rod group is pushed the syringe needle group to; piston seat snap fastener and needle stand snap fastener fasten; the push rod group is combined with the syringe needle group; and when the push rod group is outwards pulled out; push rod is detachably breaking away from piston seat, and makes syringe needle group and piston seat stay in injection tube.Adnexa two is announced " improved safety injection needle cylinder structure " novel patent No. 463639 for Taiwan, it is when the push-and-pull post is pushed into the end, this button column can push against cramp and make button hook fasten button hole on the cramp, when push-pull bar is pulled back once more, promptly simultaneously the syringe needle group is brought in the needle cylindrical unit.

Two patents shown in above-mentioned adnexa 1, the adnexa 2 are after use needle body to be returned in the injection tube, to reach the protection medical personnel, avoid being subjected to the purpose of acupuncture, but this kind safety type syringe needle remain infra Lieque point:

1, existing safety syringe-drum is to be provided with fastening structure on needle stand and push rod, by push rod needle stand is returned in the syringe, therefore existing safety syringe-drum needs to form fastening structure in addition on needle stand and push rod, and can cause the cost of making to rise, not only be not suitable for the low product of unit price, and the needle stand of this fastening structure and push rod need cooperatively interact and can use, and can't be used in the existing syringe of arbitrary form separately, so its compatibility are quite limited.

2, the fastening structure of existing safety syringe-drum, need be provided with push rod integrated structure (adnexa one) or button column (adnexa two) at the push rod end, and need be provided with needle stand snap-in structure (adnexa one) or cramp (adnexa two) at the needle stand end, and for cooperating above-mentioned two structures still need be provided with other structure again, as: piston seat snap-in structure, piston seat integrated structure (adnexa one) and button hook, button hole (adnexa two) etc., the structure of its composition is quite complicated, therefore very easily in use damages, and causes the puzzlement of user.

3, existing safety syringe only is that needle body is returned in the syringe, and needle body still is kept perfectly, and can't disappear fully and ruin syringe needle, therefore abandoning, being stretched out outside the syringe by the perforate of syringe front end because of vibrations make the needle body in the syringe when carrying, easily stabs the staff.

4, existing safety syringe-drum is when abandoning, and the opening of syringe front end can make and residue in the medicinal liquid that is mixed with body fluid in the syringe and flow out outside syringe, causes environmental pollution, and what is more, the medicinal liquid that leaks outside can cause staff or patient to be infected.

Therefore, aforementioned two patent poor practicability have in fact in addition improved necessity.

The utility model content

In order to overcome the shortcoming that aforementioned two patents exist, this utility model provides a kind of syringe with safety device, and it guarantees health, avoids needle body to reclaim use again, and needle body is not exposed, and the protection medical personnel are not stabbed, and avoids being infected, and improves safety.

The technical scheme that its technical problem that solves this utility model adopts is:

A kind of syringe with safety device comprises injection tube, needle body, push rod, it is characterized in that, safety device has a sliding sleeve, be with a holder that is fixed in injection tube in the sliding sleeve, sliding sleeve is equipped in the holder outside slidably, and the sliding sleeve end has a reduced safety head.

Aforesaid syringe with safety device, wherein sliding sleeve is a hollow cylindrical body, and the one end articulates a safety head, and other end internal diameter edge has a shoulder, and the anti-shoulder of this shoulder and holder external diameter offsets.

Aforesaid syringe with safety device, wherein safety head one end and sliding sleeve elasticity articulate, and the other end is equipped in the draw-in groove of holder.

Aforesaid syringe with safety device, wherein safety head one end and sliding sleeve elasticity articulate, and the other end fastens in needle body.

Aforesaid syringe with safety device, wherein holder and injection tube are integral piece.

This utility model guarantees health, avoids needle body to reclaim use again, and needle body is not exposed, and the protection medical personnel are not stabbed, and avoids being infected, and improves safety.

Description of drawings

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

Fig. 1 is the decomposition texture sketch map of existing syringe;

Fig. 2 is the user mode reference diagram of existing syringe;

Fig. 3 is a decomposition texture sketch map of the present utility model;

Fig. 4 is a schematic appearance of the present utility model;

Fig. 5 is a partial schematic diagram of the present utility model;

Fig. 6 to Fig. 9 is a continuous illustrative view of the present utility model;

Figure 10 is the second embodiment sketch map of the present utility model;

Figure 11 is the enlarged diagram at position shown in Figure 10;

Figure 12 is a user mode reference diagram of the present utility model;

Figure 13 is the 3rd an embodiment sketch map of the present utility model;

Figure 14 is the local enlarged diagram at pivot 56 and spring 57 positions among Figure 13.

The number in the figure explanation:

1------syringe needle group 11-----needle body

12-----needle stand 2------injection tube

22-----button in 21-----inclined-plane refers to sheet

3------pusher body 31-----piston portion

32-----push rod 4------safety device

5------sliding sleeve 51-----first end

The 52-----second end 53-----safety head

531----protuberance 532----pivot portion

54-----shoulder 55-----card division

56-----pivot 57-----spring

6------holder 61-----first end

The anti-shoulder of the 62-----second end 63-----

64-----tiltedly takes on the 65-----draw-in groove

The 7------syringe

80-----injection tube 801----front aperture

The 802----button refers to sheet 81-----syringe needle group

811----needle body 812----needle stand

82-----push rod 83-----needle guard

The specific embodiment

This utility model comprises syringe needle group 1, injection tube 2, pusher body 3, and this syringe needle group 1 comprises the needle body 11 and the needle stand 12 of a hollow, and needle body 11 1 ends are fixed on the needle stand;

Above-mentioned injection tube 2, its main body generally become a hollow circuit cylinder cylindrical shell, and injection tube 2 front outers are an inclined-plane 21, and the rear end is provided with plane button and refers to sheet 22;

Above-mentioned pusher body 3, front end is provided with piston portion 31, and the rear end is a push rod 32;

One safety device 4 comprises a sliding sleeve 5 and a holder 6, be to be placed in the sliding sleeve 5, and sliding sleeve 5 can be in the upper and lower slippage in holder 6 outsides;

Above-mentioned sliding sleeve 5 is the cylinder of a hollow, it is provided with first end 51 and second end 52, wherein first end 51 is that pivot portion 532 with a safety head 53 is articulated, this pivot portion 532 has elasticity, safety head 53 is to be one circular-arc, and a side of condom 53 is provided with a protuberance 531, these protuberance 531 little ora terminalis that slightly protrude from injection tube 2, sliding sleeve 5 second ends 52 internal diameter edge are provided with a shoulder 54, and sliding sleeve 5 first ends 51 internal diameter appropriate locations are provided with the card division 55 of an indent;

These holder 6 central authorities are a hollow form, and it is provided with first end 61 and second end 62, and wherein the external diameter edge at first end 61 is provided with an anti-shoulder 63, and second end, 62 internal diameter edge are provided with an oblique shoulder 64;

Syringe needle group 1 is the front end that is arranged in injection tube 2,3 of pusher bodies are placed in the injection tube 2, and can upper and lower slippage in injection tube, holder 6 is placed in the sliding sleeve 5, and holder is to be fixed in syringe 7, and the oblique shoulder 64 of holder is to engage with the inclined-plane 21 of injection tube, and sliding sleeve 5 can be in the upper and lower slippage in holder 6 outsides, and makes sliding sleeve 5 have spacing function by shoulder 54 and anti-shoulder 63.

See also Fig. 6 to shown in Figure 9, this utility model in use, the safety head of this sliding sleeve is to be to amount to shape, and when sliding sleeve did not skid off, this safety head was to be fixed in holder inside, and is resisted against needle stand 12 by blocking means.When user after injection, can be with sliding sleeve along the up slippage of needle body direction, this sliding sleeve can utilize a soft rubber material to make, therefore when moving, sliding sleeve can avoid sliding hands, and the pivot portion 532 of this safety head 53 has elastic force, therefore when sliding sleeve marches to the stage casing, this safety head can upspring and be subjected to needle body 11 against, and when sliding sleeve continued forward the near stroke end of slippage, safety head pops up, one edge of safety head just fastens in the card division 55, make safety head fasten really in sliding sleeve not deviate from, and the shoulder 54 of sliding sleeve can fasten with the anti-shoulder 63 of holder, make sliding sleeve can not break away from holder, condom has not been subjected to any constraint simultaneously, borrow pivot portion 532 to take advantage of a situation and pop up, and fasten card division 55, again with the downward slippage of this sliding sleeve in sliding sleeve, when the needle body front end is subjected to the downward compressing power of safety head, can makes needle body bending and be damaged.Safety head can use metal material to make, and therefore, when touching needle body, can make needle body be subjected to certain destruction.Like this, utilize the safety head of sliding sleeve to make needle body bending, avoid needle body to reclaim use again, and at the safety head of sliding sleeve first end needle body is not exposed, do not leak outside with medicinal liquid residual in the seasonal syringe, the protection staff is not stabbed, and makes environment not contaminated.

See also shown in Figure 10,11, it is second embodiment, and the internal diameter of holder 6 can be provided with a draw-in groove 65, and it can be fixed in inside by blocking means with safety head 53 when sliding sleeve 5 does not skid off.

Please consult shown in Figure 13,14 again, be the 3rd embodiment of the present utility model, it can make the pivot portion 532 of safety head 53 have elastic force by a pivot 56 and spring 57 equally, makes safety head upspring and fastens in the card division 55.

In addition, injection tube can direct one-body molded holder, and it cooperates sliding sleeve to use equally, has safety equally.

The utlity model has following advantage:

1, utilize safety head of the present utility model to destroy needle body, needle body is not exposed, one can protect the staff not stabbed by needle body, avoids being infected, and it two can prevent that needle body is recovered use.

2, use the back safety head can be covered on first end of sliding sleeve, thus in the injection tube if residual have a medicament, can avoid the medicament outflow, safe and sanitary.

3, this utility model only needs in use with after moving to the summit on the sliding sleeve, and slippage downwards gets final product again, and it is quite convenient to use.

4, see also shown in Figure 12ly, this utility model can cooperate different user mode to change the syringe needle group of different size, and it only needs protuberance 531 pushing tows with safety head when desire is changed, can change the syringe needle group smoothly at this moment.

5, the oblique shoulder of the holder of this utility model safety device is to glue together mutually with the inclined-plane of injection tube front end, maybe can utilize high frequency welding tiltedly to take on the inclined-plane and engage, and makes the two combine closely, and assembling is quite convenient.

6, safety device of the present utility model is to be mounted on the injection tube front end, and therefore applicable to any syringe, it can cooperate conventional formula syringe, does not need to develop in addition the injection tube mould, therefore saves cost, is applicable to the product that unit price is low.

From the above, this utility model has creativity, and it only utilizes a safety device cover to be connected to the injection tube front end, guarantees safety, does not destroy needle body, guarantees that the medical and nursing work personnel are not subjected to acupuncture, avoids being infected safety, health.

The above, it only is preferred embodiment of the present utility model, be not that this utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.

Claims (5)

1, a kind of syringe with safety device comprises injection tube, needle body, push rod, it is characterized in that, safety device has a sliding sleeve, be with a holder that is fixed in injection tube in the sliding sleeve, sliding sleeve is equipped in the holder outside slidably, and the sliding sleeve end has a reduced safety head.

2, the syringe with safety device according to claim 1 is characterized in that, sliding sleeve is a hollow cylindrical body, and the one end articulates a safety head, and other end internal diameter edge has a shoulder, and the anti-shoulder of this shoulder and holder external diameter offsets.

3, the syringe with safety device according to claim 1 is characterized in that, safety head one end and sliding sleeve elasticity articulate, and the other end is equipped in the draw-in groove of holder.

4 syringes with safety device according to claim 1 is characterized in that, safety head one end and sliding sleeve elasticity articulate, and the other end fastens in needle body.

5 syringes with safety device according to claim 1 is characterized in that holder and injection tube are integral piece.

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