CN2577863Y

CN2577863Y - Disposable plastic emulsified syringes

Info

Publication number: CN2577863Y
Application number: CN 02244827
Authority: CN
Inventors: 吴少平
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-11-19
Filing date: 2002-11-19
Publication date: 2003-10-08
Anticipated expiration: 2012-11-19

Abstract

The utility model relates to a disposable plastic syringe gathering the functions of an emulsification operation and medicine injection into an integral body. A needle cylinder is provided with an inner and an outer two chambers, the outer chamber is thick and is provided with a wide opening of an inclined plane, the inner chamber of the needle cylinder is thinner, and the inner and the outer chambers are communicated by a hole slot at the bottom of the front wall of the inner chamber. A syringe nipple is communicated with the inner chamber, and a middle section is provided with an opening and closing valve. After the opening and closing valve is closed, an inner and an outer two pistons are moved, materials in the inner and the outer two chambers can be mixed and emulsified, and the opening and closing valve is opened for exhaust or medicine injection.

Description

Disposable plastic emulsifying syringe

Affiliated technical field

This utility model relates to a kind of disposable medical plastic injector material, the emulsifying and the injection of powder chemotherapeutic and oiliness suppository when being particularly suitable for tumor intervention therapeutic.

Background technology

In tumor intervention therapeutic (mainly being) through artery medicine perfusion chemotherapy and Embolization, usually need chemotherapeutics (mostly being water solube powder) and suppository (mostly are oil preparation-iodized oil, 10 milliliters of dresses) use after the emulsifying, can directly not satisfy this demand but still there is a kind of simple and practical medical apparatus and instruments so far.At present, the emulsifying apparatus that uses in the tumor intervention therapeutic is mainly: common plastic injector for temporary use, tee T or measuring cup.Emulsifying manner mainly contains: after 1. extracting iodized oil respectively and dissolved the normal saline of powder chemotherapeutic with second mate's plastic injector for temporary use, connect tee T simultaneously, replace the bolus infusion device by connection tube and make the two emulsifying.This method operation inconvenience connects instability, drug extravasation easily takes place cause waste; Simultaneously, after the powder chemotherapeutic is dissolved in normal saline, lost its granule character, local drug concentration is also non-the highest behind the injection human body, may affect the treatment.2. together pour powder chemotherapeutic and iodized oil into measuring cup, insert with plastic injector for temporary use and wherein inject repeatedly/aspirate, reach the emulsifying purpose.But the result often has a large amount of emulsions to adhere on the chamber wall, can't take out to the greatest extent, wastes more.

Summary of the invention

In order to overcome aforesaid operations inconvenience, emulsifying imperfection and/or easy wasting deficiency, this utility model provides a kind of plastic injector for temporary use, this syringe integrates emulsification procedure and medicine function of injection, and is simple to operate and can not cause drug waste.

The technical scheme that its technical problem that solves this utility model adopts is: the syringe of this plastic injector for temporary use is provided with inside and outside two chambeies.Exocoel is thick and the broad opening in inclined-plane is arranged, and is convenient to lean-in to powder.Inner-cavity structure is similar to common plastic injector for temporary use, can be used for extracting iodized oil or injectable drug in body.Inside and outside two chambeies borrow two the adjacent hole slots in inner chamber antetheca bottom to link up mutually.Syringe nipple communicates with inner chamber, and valve is equipped with in the nipple stage casing, open that valve is used in the exhaustjet device gas or in body injectable drug, valve-off then is used for the emulsifying of medicine.Outer wall is carved with scale behind the exocoel, is used for measuring the medication amount of inner chamber.Inside and outside two chambeies all are furnished with the piston of form fit separately, and its piston handle length difference can not conflicted in the emulsifying campaign mutually, and bimanualness is very convenient.Because what directly pour in exocoel during emulsifying is the chemotherapeutic powder, and whole emulsion process carries out in that intracavity is airtight, thus can reach avoid waste, purpose that emulsifying is thorough, easy to use.

The beneficial effects of the utility model are: easy to operate, be beneficial to saving, and emulsifying is thorough, integrates emulsification procedure and medicine function of injection.

Description of drawings

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is the rearview of the syringe of this utility model.

Fig. 2 is the front view of the syringe of this utility model.

Fig. 3 is the part rip cutting cross-sectional front view of the syringe of this utility model.

Fig. 4 is the center section plane sketch map of the syringe of this utility model.

Fig. 5 is an outer piston side view of the present utility model.

Fig. 6 is an inner carrier view of the present utility model.

Among the figure, 1. syringe needle tube inner chamber, the 2. wide inclined-plane of injector syringe opening exocoel, 3. syringe graduation graticule, 4. on/off valve, 5. inside and outside chamber traffic hole slot, 6. intracavity bottom hits exactly needle nipple opening, 7. syringe nipple, the 8. internal channel of on/off valve, 9. circular opening in the middle of the outer piston, 10. the outer piston hands is bright, 11. outer piston heads, 12. outer piston head end rubber sleeve, 13. the inner carrier tail end, 14. inner carrier plastics head ends

The specific embodiment

(5) outer piston in the accompanying drawing is inserted in chamber outside figure (2) syringe, will schemes (6) inner carrier again and be inserted within figure (2) syringe in the chamber, be complete structure of the present utility model.

The concrete step of using is: open aseptic packaging, take out above-mentioned loose piece, this moment, the needle nipple valve was in open mode; Earlier intracavity is poured the chemotherapeutic powder into to syringe outside, is inserted in outer piston under the level of approximation state, after being inserted in then afterbody tilt upward the outer intracavity gas of emptying, reservation chemotherapeutic; The inner carrier that is locked again inserts needle nipple in the iodized oil, after carrying inner carrier suction iodized oil outward and going into inner chamber, and valve-off; On carry/descend to push away outer piston and push away down/on propose the inner carrier action and hocket behind the several times, oil preparation and powder are finished the emulsifying purpose through the impact of flow at high speed back and forth of the little hole slot of inner chamber diapire; The outer piston of then slippaging down after emulsifying finishes all places inner chamber with the emulsifying agent of making, and opens valve and connects conduit and can carry out perfusion in vivo.Also can be as required in the filling process, valve-off repeats above-mentioned emulsification procedure process at once.

Claims

A kind of syringe, be made of syringe, piston, controlled valve, it is characterized in that: establish one in addition than the fine needle tube in the wide lancet tube in inclined-plane, inside and outside two chambeies of separation borrow internal chamber wall bottom outlet groove to communicate, be provided with two pistons, external force promotion piston can make the airtight mixing of material, the emulsifying in two chambeies.