CN2745587Y - Internal pressure type powder-injection automatic premixing medicine louding injector - Google Patents

Abstract

The utility model relates to an internal pressure type powder-injection automatic premixing medicine loading injector, which comprises a bottle body, a push pole and a clamp type pinhead. The utility model is characterized in that a flow guiding hole is cut on the bottle body; the push pole is connected with the bottle body by a sealing piston; a safe bolt for locking the push pole is arranged at the central part of the push pole, and the top end of the safe bolt is an incline of 45 DEG; a bottom rubber plug is arranged on the bottom part of the bottle body; a bottle mouth rubber plug is arranged on the upper part of the bottle body; a rotary fastening bottle mouth cover is arranged on the outer part of the bottle mouth rubber plug; a needle insertion sheath which can slide downwards is arranged on the outer part of the bottle mouth cover; the clamp type pinhead is threaded out from the center of the needle insertion sheath. The utility model has the characteristics that the solute and the dissolvant are arranged in one bottle, so that the solute and the dissolvant can be mixed automatically and the medicine can be added quickly; the whole injecting process is a sterile operation. The utility model has the advantage of simple use, and can be used for filling various powder injections.

Description

The automatic premix medicine adding syringe of inner pressed injectable powder

Technical field

This utility model relates to a kind of automatic premix medicine adding syringe.

Background technology

(being about to solvent and solute packs in the packing in advance to solve the automatic premix problem of injectable powder, do not need transfer vessel can mix use during use) be the dream of whole world medical scientific research personnel many decades, owing to can't solve the production validation problem of solvent and solute unification encapsulation, the B+S company of Germany produces first growth hormone (freeze-dried powder) premix formulations in the world in 20 end of the centurys, be used with automatic injector, only be used for the automatic injection of growth hormone, but because its lyophilized powder and solvent are in a container, slidably rubber piston is not enough to prevent long storage time, lyophilized powder get damp and the glass bottle on the quality problems of bulging part, and do not authenticate by the German pharmaceutical production specifications of quality in calendar year 2001, stopped production at present; U.S. scientist has done many trials in that the injectable powder premix is technical, they place solute and solvent in the lageniform vial, enforce the top plug during use, transmit pressure by the top solvent and act on rubber piston, the intermediate rubber piston is come off under pressure in the medicated powder of bottom, the solvent spontaneous current is gone into medicated powder, reach automatic blended purpose, but this scheme only only limits to laboratory to be used, and is not with syringe needle, can't be applied to clinical practice.Domestic existing correlation technique and patent only are confined to tackling key problem, improve the stage, do not put into operation, as: application number 200320109813.1, denomination of invention " intrinsic pressure medicine-storing injectable powder combination medicine adding syringe "; Application number 200320109812.7, denomination of invention " medicine-storing injectable powder combination medicine adding syringe ", this injection device divides dress solvent in the push rod, dress solute in the pin bucket, there is the syringe needle conducting centre, needs twice inserting needle just can finish, very inconvenient, these products all do not solve the incorporate problem of pigment.At present for the injectable powder of intravenous drip or intramuscular injection use clinically, manner of packing is generally solvent and solute is contained in respectively in two independent packing medicine bottles, need during use can realize: 1, puncture solvent bottle (sterilized water for injection earlier through five steps, the special solvent that normal saline, other injectable powder are joined).2, suck solvent in asepsis injector.3, inject in the solid injection medicine bottle mix homogeneously.4, in solid injection medicine bottle, suck mixing liquid once more to asepsis injector.5, give patient infusion, or pierce through the infusion bottle rubber stopper, with the liquid injection infusion bottle of mixing, or standby.Whole operation process more complicated, nurse's labor intensity is big, need do five actions, just can finish in 1-2 consuming time minute.The whole process of making up a prescription is all carried out in the air ambient that exposes, and causes microbial contamination easily.Easily add phenomenons such as wrong medicine, mixed medicine when making up a prescription, may cause malpractice sometimes.

Summary of the invention

The purpose of this utility model provides and a kind of solute and solvent is contained in the bottle, make solute and solvent automatic medicine-mixing, dosing fast, injection overall process sterile working, use simply, be applicable to the automatic premix medicine adding syringe of inner pressed injectable powder of irritating all kinds of injectable powder of shape.

The technical scheme that realizes this utility model purpose is: the automatic premix medicine adding syringe of a kind of inner pressed injectable powder, comprise bottle, push rod, the cassette syringe needle, it is characterized in that on bottle, being provided with pod apertures, push rod is connected with bottle by packed-piston, be provided with the safety pin of locking push rod at the push rod middle part, the safety pin top is 45 degree slopes, be provided with a bottle primer plug at bottle body bottom, the bottle primer beyond the Great Wall portion be provided with the fastening bottleneck of rotation lid, be provided with fungi-proofing gum cover in bottleneck lid outside, on bottle top the bottleneck plug is arranged, the fastening bottleneck lid of rotation is arranged in bottleneck plug outside, but at the outside inserting needle cover that is provided with lower slider of bottleneck lid, the cassette syringe needle passes from inserting needle cover central authorities, but between the inserting needle of lower slider cover and bottleneck lid, compression spring is housed, overlaps the outside at inserting needle and be provided with fungi-proofing gum cover.

The utility model has the advantages that:

1, simple to operate, fast save time, reduce nurse's labor intensity, liberate the productive forces.

2, the whole operation process does not all produce the container transfer, and all syringe needles, solvent, solute all do not expose, and ingress of air does not cause dust pollution.

3, the automatic mixing of solvent and solute does not shift medicinal liquid, can not mix solvent and solute wrong.

4,, can substitute the certification work that in the toilet, makes up a prescription that needs to force hospital's implementation in the future gradually owing to its structure, technology, packing, the uniqueness of use, superiority.

Description of drawings

Fig. 1 is this utility model structural representation.

The specific embodiment

As shown in Figure 1, on bottle 1, be provided with pod apertures 5, be provided with the safety pin 9 of locking push rod at push rod 2 middle parts, safety pin 9 tops are 45 degree slopes, push rod 2 is connected with bottle 1 by packed-piston 11, very natural two cavitys---injectable powder chamber 4 and aqueous injection chamber 3 that bottle 1 is divided into, the solute fill is in the injectable powder chamber 4 of bottle, the solvent fill is in the aqueous injection chamber 3 of bottle, with bottle primer plug 10 aqueous injection chamber 3 is sealed, the fastening bottleneck lid 8 of rotation is arranged in bottle primer plug 10 outsides, cover 8 outsides at bottleneck fungi-proofing gum cover 6 is arranged, with bottleneck plug 12 injectable powder chamber 4 is sealed, the fastening bottleneck lid 8 of rotation is arranged in bottleneck plug 12 outsides, but cover the inserting needle cover 7 that there is lower slider 8 outsides at the fastening bottleneck of rotation, cassette syringe needle 13 overlaps 7 central authorities from inserting needle and passes, between but the inserting needle of lower slider cover 7 and bottleneck cover 8, compression spring 14 is housed, overlaps 7 outsides at inserting needle and be provided with fungi-proofing gum cover 6.

When not using, solute in this syringe and solvent are fully independently, the safety pin 9 that will lock push rod is in use pulled out, because the latch top is 45 degree slopes, when so latch 9 is pulled out from push rod 2, push rod 2 can withdraw from 3 millimeters backward, expose pod apertures 5, allow solvent flow into rapidly in the solute, jiggle solvent and solute are fully mixed, but the inserting needle of lower slider cover 7 is to lower slider, make cassette syringe needle 13 puncture bottleneck plug 12,, can directly give the human injection then as an ordinary syringe to lower slider, also can directly give the infusion bottle dosing, only inserting needle of needs just can the while complete operation.

Claims (2)

1, the automatic premix medicine adding syringe of a kind of inner pressed injectable powder, comprise bottle (1), push rod (2), cassette syringe needle (13), it is characterized in that on bottle (1), having pod apertures (5), push rod (2) is connected with bottle (1) by packed-piston (11), be provided with the safety pin (9) of locking push rod at push rod (2) middle part, safety pin (9) top is 45 degree slopes, be provided with a bottle primer plug (10) in bottle (1) bottom, be provided with the fastening bottleneck lid of rotation (8) in bottle primer plug (10) outside, on bottle (1) top bottleneck plug (12) is arranged, the fastening bottleneck lid of rotation (8) is arranged in bottleneck plug (12) outside, at bottleneck lid (8) but the outside is provided with the inserting needle cover (7) of lower slider, cassette syringe needle (13) passes from inserting needle cover (7) central authorities, but between the inserting needle cover (7) of lower slider and bottleneck lid (8) compression spring (14) is housed.

2, the automatic premix medicine adding syringe of inner pressed injectable powder as claimed in claim 1 is characterized in that being provided with fungi-proofing gum cover (6) in bottleneck lid (8) outside, is provided with fungi-proofing gum cover (6) equally in inserting needle cover (7) outside.