CN2748094Y

CN2748094Y - Powder injection pre-mixing syringe

Info

Publication number: CN2748094Y
Application number: CN 200420042084
Authority: CN
Inventors: 王新明; 李卫蔚; 靳纯青; 刘岩
Original assignee: ZHONGSHAN BOTAI MEDICAL INSTRUMENT CO Ltd
Current assignee: ZHONGSHAN BOTAI MEDICAL INSTRUMENT CO Ltd
Priority date: 2004-06-23
Filing date: 2004-06-23
Publication date: 2005-12-28
Anticipated expiration: 2014-06-23

Abstract

The utility model relates to a powder injection pre-mixing syringe. A conducting needle (2) is arranged between a solvent bottle (5) and a solute bottle (15), a card button (7) on one end cover (9) is matched with a first chute (6) and a second chute (18) which are on an outer pipe (4), the end cover (9) is provided with a plug (19), the upper edge of an internal sleeve (11) is provided with an inserting slot (10), the lower end of the internal sleeve (11) is provided with an end surface with a hole (13), and the end surface contacts with a plunger (14). The solute bottle and the solvent bottle are sealed in the syringe in advance, the card button moves along the first chute (6) by pushing a pushing handle (8), and the conducting needle (2) conducts the solvent bottle and the solute bottle to mix medicine. The pushing handle is lifted and rotated slightly, the pushing handle is continue to be pressed, the card button can move along the second chute (18), and physic liquor is injected into a human body through the plug pressing the internal sleeve and the plunger (14). The syringe has novel structure and convenient operation, and the operating procedures of a nurse can be reduced.

Description

Injectable powder premix syringe

Technical field

This utility model relates to a kind of medical powder injection premix syringe.

Background technology

The applicant once applied for " injectable powder combination medicine adding syringe assembling cover " (application number: 200420041883.2), it is that solute bottle and solvent bottle are quantitatively packed in the syringe in advance, two intravital powder of bottle and aqueous injection are realized conducting by the conducting pin and injectable powder are mixed, and then human body is injected.This syringe has significantly reduced doctor, nurse's operation sequence and labor intensity, has also reduced contamination of heavy simultaneously, is fit to very much to vigorously promote the use.But structurally also there are some unsatisfactory parts in this syringe, and some details is perfect not enough.

The content of utility model

The technical problems to be solved in the utility model is the defective that exists in the prior art in order to overcome, and a kind of structure perfect injectable powder premix syringe more rationally is provided.

Technical solution of the present utility model is: be provided with plug on end cap, interior cover upper edge is provided with slot, and band foraminous end face in interior cover lower end contacts with piston.

Further technological improvement of the present utility model is: bottle mouth position socket one punch block of interior cover lower end, the conducting pin is fixed on the punch block, is provided with projection in the punch block.First chute and second chute are two grooves that fall L shaped shape that interconnect.

The good effect that this utility model produced is: owing to designed plug and designed slot interior putting on end cap, punch block is along the slip setting of bottleneck in addition, make this syringe structurally more reasonable, pull up the conducting pin after the two medicine bottle conductings again and can guarantee that the medicinal liquid in the solute bottle can not backflow because of pressure increases.Return-to-home position more not after the punch block slippage has self-destroying function in addition, can only disposablely use so guaranteed this syringe, to prevent the spread of disease.Use this syringe can significantly reduce nurse's operation sequence, save time, increase work efficiency, reduce labor intensity.

Description of drawings:

Fig. 1: structural representation of the present utility model.

Fig. 2: the position view of chute and card button.

Fig. 3: the configuration state figure when the card button is in the A position.

Fig. 4: the structural representation when the card button is in the B position.

Fig. 5: the structural representation when the card button is in the C position.

Fig. 6: punch block is at the structural representation of original state.

Fig. 7: the structural representation of punch block after the card button is in the B position.

The specific embodiment

As shown in Figure 1, the utlity model has an outer tube 4, be arranged with on outer tube 4 by two inverted L shapes and middle first chute 6 and second chute 18 (referring to Fig. 2) that interconnects, two card buttons 7 that are solidified as a whole with end cap 9 are embedded in slip in first chute 6 and second chute 18.The solvent bottle 5 of interior dress solvent is a tight fit with end cap 9, and interior cover 11 is sliding-contact with solvent bottle 5.Also be provided with the solute bottle 15 of an interior powder charge powder in outer tube 4, this solute bottle 15 suitable for reading has the piston of making just like flexible materials such as rubber 14, and the lower port of solute bottle 15 is by plug 1 sealing.The end face of interior cover 11 is provided with a hole 13 and contacts with piston 14.Bottle mouth position at solvent bottle 5 and solute bottle 15 is with a

mobile punch block

12,16 respectively, conducting pin 2 and entry needle 17 are separately fixed on the

punch block

12,16, the projection 20 that is equipped with in the

punch block

12,16 contacts with bottleneck, and

plug

3,1 center is provided with guiding hole 21 (referring to Fig. 6).

With push away the end cap 9 lower edge symmetries that handle 8 is connected as a single entity and do not have two plugs 19, and card button 7 to be periphery vertical symmetry with end cap 9 be provided with.The top of interior cover 11 is arranged with two slots 10, this slot 10 corresponding with the position of plug 19 (referring to Fig. 3).

This syringe is the solute bottle 15 of powder just will be housed when making in advance and the solvent bottle 5 of aqueous injection be housed by quantitatively being encapsulated in the syringe.In original state, card button 7 is to be positioned at the position that first chute, 6 upper ends promptly are in A.

When injecting, rotate a little earlier and push away handle 8, card button 7 is forwarded in first chute 6, push away handle 8 again, promote solvent bottle 5 by end cap 9 and move until making card button 7 move to the position that the termination is B along first chute 6 along interior cover 11.The slot 10 interior (referring to Fig. 4) of cover 11 in plug 19 on the end cap 9 stretches at this moment.In this process, the conducting pin 2 of double headed roller point pierces through piston 14 and plug 3 under pressure respectively, makes

solvent bottle

5 and 15 conductings of solute bottle, and the inner pressure of solvent in the solvent bottle 5 is injected in the solute bottle 15 automatically by conducting pin 2 powder is dissolved.Simultaneously, punch block 12 slides into its end face along bottleneck and contacts (referring to Fig. 7) with plug 3.In this process, interior cover 11 and piston 14 all are motionless relatively, and entry needle 17 does not also pierce through plug 1.

To upwards lift and rotate pushing away handle 8 after above process is finished, make card button 7 arrive second chute, 18 upper ends, i.e. C position by the junction of first chute 6 and second chute 18.In this course of action, plug 19 breaks away from slot 10 again, and makes plug 19 be positioned at slot 10 upper edges.Simultaneously, owing to lift and push away handle 8, and drive solvent bottle 5 and punch block 12 upwards, the lower end of conducting pin 2 will be extracted from piston 14, makes the conducting interruption between solvent bottle 5 and the solute bottle 15, and is intrinsic pressure excessive and medicinal liquid is backflowed to prevent solute bottle 15.

Next step is promptly injected human body.When entry needle 17 thrust human body, its counteracting force can make punch block 16 slide along solute bottle 15 bottlenecks completely, contacts (referring to Fig. 7) until punch block 16 end faces with plug 1, and this moment, entry needle 17 pierced through plug 1.Continue to push away handle 8 again, it is the D position that card button 7 drops to its bottom along second chute 18, the pressure of cover 11 upper edges in 19 pairs of the plugs by end cap 9, in making cover 11 end faces compressing piston 14 and with medicinal liquid by entry needle 17 injection human bodies, finish whole injection process.

Because the setting of

punch block

12,16 internal projection 20, when

punch block

12,16 end faces block with the projection 20 step places that are located in bottleneck after

plug

3,1 contacts, so can make push away carry on the handle 8 or entry needle 17

punch block

12,16 can return-to-home position when human body is extracted, both guaranteed serviceability, played self-destruction again, this syringe can only disposablely be used, to prevent the spread of disease.

Said protruding 20 is bulge loop, can be structures such as salient point, fin, protruding hook also, so long as can slide along bottleneck, and can cooperate stuck structure all to can be used to implement with the step place outside the bottleneck.

Claims

1, a kind of injectable powder premix syringe, between solvent bottle (5) and solute bottle (15), has conducting pin (2), card button (7) on the end cap (9) cooperates with first chute (6) and second chute (18) on the outer tube (4), it is characterized in that on end cap (9), being provided with plug (19), interior cover (11) upper edge is provided with slot (10), and the end face that interior cover (11) lower end has hole (13) contacts with piston (14).

2, injectable powder premix syringe as claimed in claim 1 is characterized in that bottle mouth position socket one punch block (12) of solvent bottle (5) lower end, and conducting pin (2) is fixed on the punch block (12), is provided with projection (20) in the punch block (12).

3, injectable powder premix syringe as claimed in claim 1 is characterized in that said first chute (6) and second chute (18) are two grooves that fall L shaped shape that interconnect.

4, injectable powder premix syringe as claimed in claim 1 is characterized in that interior cover (11) slides along solute bottle (15) inwall.

5, injectable powder premix syringe as claimed in claim 1 is characterized in that the port of solute bottle (15) also is provided with punch block (16), and entry needle (17) is fixed on the punch block (16).