CN2930730Y

CN2930730Y - Dissolvent preposing type sterilized medicine mixing cartridge syringe

Info

Publication number: CN2930730Y
Application number: CN 200620078821
Authority: CN
Inventors: 霍平安; 张文庆; 李悟源; 刘岩
Original assignee: ZHONGSHAN BOTAI MEDICAL INSTRUMENT CO Ltd
Current assignee: ZHONGSHAN BOTAI MEDICAL INSTRUMENT CO Ltd
Priority date: 2006-04-18
Filing date: 2006-04-18
Publication date: 2007-08-08
Anticipated expiration: 2016-04-18

Abstract

A solvent-preposed aseptic medicine-mixing cartridge bottle syringe comprises a solvent bottle (3) and a solute bottle (8) with a slipping frame (7) fixed with a needle (5) connected at the bottle mouth. The utility model is characterized in that the solvent bottle is arranged inside a sliding sleeve (2) jointed and fitted with a casing (9) and the mouth of the solvent bottle is opposite to that of the solute bottle. The mouth of the solvent bottle is fitted tightly with a sliding frame (4) and a needle sleeve (6) contacting with the end face of the sliding frame. The solvent bottle is pre-pressurized Schering bottle and the solute bottle is cartridge bottle. The utility model realizes communication of two bottles and medicine mixture by a needle, and the innovative structural design of a primary and a secondary pull rod (14, 13) increases reasonableness in structure and use, reduces complexity of production process and production cost and makes the injection operation easier.

Description

Solvent front positioned aseptic chemical mixing clip type bottled syringe

Technical field

This utility model belongs to the injector for medical purpose technical field, specifically a kind of solvent front positioned aseptic chemical mixing clip type bottled syringe.

Background technology

The applicant had applied for multinomial pre-encapsulated injector once, structure to conventional syringe has carried out bigger improvement and innovation, it not only can reduce nurse's injection operation link, reduce working strength, the more important thing is and the malpractice insurance accident that causes because of the mistake of making up a prescription can not occur, and have easy to use, but the advantage of self-injection.But these syringes mostly are the solvent bottles to be contacted with pushing away handle, and solute bottle (must be the cassette bottle) is positioned at the syringe front portion, realizes mixing medicine, then by releasing medicinal liquid in the solute bottle after solvent enters the solute bottle owing to pressure by the conducting pin.Though bigger improvement has been arranged on the structure, produced certain positive role, also exist some as using inconvenience, the unreasonable part of structure.Such as having conducting pin and entry needle simultaneously, it is minimum that manufacturing cost can not be dropped to, and production technology is more complicated also.

The utility model content

The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, a kind of design that structurally has bigger innovation is proposed, and possess use convenient, production cost is lower,, the more simple solvent front positioned aseptic chemical mixing clip type bottled syringe of production technology.

The purpose of this utility model realizes by following solution: the solvent bottle places in the slip cap, and slip cap is that socket cooperates with shell, and the bottleneck of solvent bottle is relative with the bottleneck of solute bottle.

Further technical solution of the present utility model is: tight fit one travelling carriage and the needle guard that is slidingly matched with travelling carriage on the bottleneck of solvent bottle, needle guard contacts with the end face of slippage frame.The solvent bottle is the cillin bottle of preliminary filling pressure, and the solute bottle is the cassette bottle.On travelling carriage, be provided with claw or limited pit, and with needle guard that travelling carriage is slidingly matched on corresponding limited pit or the claw of being provided with.The end of movable sleeve spins or is connected with an end cap.

Can obviously find out by aforesaid technical solution, this utility model is because the corresponding setting with the solute bottle of solvent bottle of will pressurizeing, have only one both can make solvent bottle and the conducting of solute bottle, mix medicine between them, can work as the syringe needle that entry needle uses again, also reduce by a travelling carriage that is stuck in the solvent bottle mouth position.Greatly simplify on the structure, more increased the reasonability of structure, making also that manufacturing process is more simple has bigger reduction with cost than original structure.The more important thing is that injection operation is become to be more prone to.Also have, the total length that the structural design of I and II push rod can shorten whole device has greatly dwindled volume, also helps packing, can satisfy the range of piston again, the smooth operation when guaranteeing injection.

Description of drawings

Fig. 1: overall structure sketch map of the present utility model (initial condition).

Fig. 2: the structural formula intention of needle guard.

Fig. 3: the structural formula intention of travelling carriage.

Fig. 4: the structural formula intention that needle guard cooperates with travelling carriage.

Fig. 5: the fit structure sketch map that pushes away the handle place.

Fig. 6: the configuration state figure when the secondary push rod is released.

Fig. 7: syringe needle thrusts the configuration state figure of solute bottle.

Fig. 8: the configuration state figure when solvent bottle and the conducting of solute bottle.

Fig. 9: the configuration state figure when implementing injection.

Figure 10: another example structure figure of the present utility model.

Figure 11: another example structure figure of the present utility model.

The specific embodiment

As shown in Figure 1, the utlity model has a shell 9 and a slip cap that is slidingly matched with it 2, the cassette solute bottle 8 of dress aqueous injection or injectable powder in shell 9, a rubber piston 10 is arranged in the tail end of this solute bottle 8, and bottle mouth position also is sliding combined with a slippage frame 7 at bottle mouth position except that being provided with a plug, the slippage frame also has claw 20 on 7 medial walls, and the syringe needle 5 that (referring to Fig. 7) can play conducting and injection effect is fixed on this slippage frame 7; And in slip cap 2, have the solvent bottle 3 that liquid vehicle is housed in, and this solvent bottle 3 is a cillin bottle that is filled with Compressed Gas in advance, it is by spinning with slip cap 2 or the end cap 1 of clamping is encapsulated in the slip cap 2.The outer close-fitting unification of the bottleneck of solvent bottle 3 travelling carriage 4 (referring to Fig. 2), this travelling carriage 4 again with a tubulose needle guard 6 (referring to Fig. 3) socket, the two realizes clampings location (referring to Fig. 4) by the screens 18 that is located at the claw 17 on the travelling carriage 4 and be located on the needle guard 4 in the socket sliding process.Certainly, said claw 17 also can be located on the needle guard 4, and screens 18 also can be located on the travelling carriage 4, and its purpose is exactly in order to realize mutual location.

Rearward end at syringe shell 9 connects an adapter sleeve 12, has a locating ring 16 in the adapter sleeve 12 again, and 16 pairs of pressure heads 11 of pegging graft with piston 10 of locating ring are realized the location.Secondary push rod 13 with push away handle 15 and fasten as one, also be provided with claw 19 in secondary push rod 13 bottoms.One-level push rod 14 is enclosed within secondary push rod 13 outsides, and its lower end is stuck in again in the adapter sleeve 12 (referring to Fig. 5).

Referring to Fig. 1, syringe described in the utility model has liquid vehicle (water for injection etc.) by the pre-embedding of consumption in solvent bottle 3 when dispatching from the factory, and be filled with certain Compressed Gas in advance, so that have certain pressure in the solvent bottle 3; And in solute bottle 8, injectable powder or aqueous injection are arranged by the pre-embedding of consumption.Travelling carriage 4 is in initial position with needle guard 6, and syringe needle 5 does not make

solvent bottle

3 and 8 conductings of solute bottle in the centre position, 14, the 13 mutual sockets of I and II push rod, and secondary push rod 13 is positioned at extreme lower position, and this moment, claw 19 was not had an effect.

When needing injection, grasping slip cap 2 promotes to shell 9 directions, slip cap 2 slides along shell 9 outer walls and stops until spacing place, solvent bottle 2 promotes travelling carriage 4 and needle guard 6 in this process, promote slippage frame 7 by needle guard 6 again, make the syringe needle 5 that is solidified as a whole with slippage frame 7 at first pierce through the plug of solute bottle 8.This moment, slippage frame 7 inner port propped up solute bottle 8, and the claws 20 in the slippage frame 7 collude and tangle at the bottom of the bottleneck along the location.Continue to promote slip cap 2 again, the screens on the travelling carriage 4 at this moment 18 breaks away from the claw 17 of needle guard 6 and the end face of travelling carriage 4 is supported to needle guard 6 bottoms, and the other end of syringe needle 5 promptly pierces through the plug (referring to Fig. 8) of solvent bottle 3 at this moment.Owing to be filled with pressure in advance in the solvent bottle 3, liquid vehicle promptly enters by hollow pinhead 5 and realizes two bottles of conductings in the solute bottle 8 under pressure, and the injectable powder solute is dissolved mixing or direct and aqueous injection mixing.

Can take out slip cap 2 after mixed medicine finishes, drive travelling carriage 4, needle guard 6 simultaneously and break away from shell 9 in the lump, this moment, syringe needle 5 exposed fully, only remaining part-structure as shown in Figure 9.At this moment outwards pulling pushes away handle 15 and secondary push rod 13 friction tight with it, make the claw 19 on the secondary push rod 13 be stuck in one-level push rod 14 outer faces, pushing away handle 15 again can be by secondary push rod 13 and one-level push rod 14 and the pressure head 11 direct piston 10 that promote, and the medicinal liquid of mixing is injected human body through syringe needle 5, finish the whole operation process.

Certainly, foregoing syringe is not this a kind of structure only, also can in slip cap 2, adorn a cassette solvent bottle 3, one end of a U type push rod 21 penetrate behind slip cap 2 bottoms again with solvent bottle 3 in piston 22 offset (referring to Figure 10), promote push rod 21 and piston 22 and liquid vehicle can be entered by syringe needle 5 and realize mixing medicine in the solute bottle 8.Take out slip cap 2 and solvent bottle 3 and push rod 21 then and can implement injection.

For length that shortens push rod 21 and the range that can satisfy piston 22, this push rod 21 also can be made into collapsible push rod 23 as shown in figure 11.Just can promote piston 22 and move as long as several sections of collapsible push rod 23 are straightened.

Claims

1, a kind of solvent front positioned aseptic chemical mixing clip type bottled syringe, comprise a solvent bottle (3) and a solute bottle (8), the slippage frame (7) that the bottle mouth position socket one and the syringe needle (5) of solute bottle (8) fixes, it is characterized in that solvent bottle (3) places in the slip cap (2), slip cap (2) and shell (9) are for socket cooperates, and the bottleneck of solvent bottle (3) is relative with the bottleneck of solute bottle (8).

2, solvent front positioned aseptic chemical mixing clip type bottled syringe as claimed in claim 1, it is characterized in that on the bottleneck of solvent bottle (3) tight fit one travelling carriage (4) and the needle guard (6) that is slidingly matched with travelling carriage (4), needle guard (6) contacts with the end face of slippage frame (7).

3, solvent front positioned aseptic chemical mixing clip type bottled syringe as claimed in claim 1 is characterized in that said solvent bottle (3) is the cillin bottle of preliminary filling pressure, and solute bottle (8) is the cassette bottle.

4, solvent front positioned aseptic chemical mixing clip type bottled syringe as claimed in claim 1, it is characterized in that with travelling carriage (4) that solvent bottle (3) bottleneck cooperates on be provided with claw or limited pit (18), and going up corresponding limited pit or the claw (17) of being provided with the needle guard (6) that travelling carriage (4) is slidingly matched.

5, solvent front positioned aseptic chemical mixing clip type bottled syringe as claimed in claim 1, the end that it is characterized in that slip cap (2) spins or is connected with an end cap (1).