CN2453939Y

CN2453939Y - Medical syringe

Info

Publication number: CN2453939Y
Application number: CN 00265702
Authority: CN
Inventors: 文一
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-12-25
Filing date: 2000-12-25
Publication date: 2001-10-17
Anticipated expiration: 2010-12-25

Abstract

The utility model relates to a medical appliance, specifically an improved medical syringe. The utility model is characterized in that a core bar is made of stainless steel; the surface of the core bar is provided with a pull handle which can slide and rotate along the core bar, the pull handle is clamped with a roll rim at the rear end of an outer sleeve, and therefore, injection is convenient, and the core bar can be separated from the outer sleeve after the injection is finished. The improved syringe can suck and inject medicine in a hand suction type or a spring power-assisted type, and moreover, the roll rim of the outer sleeve of the syringe and the surface of the core bar are correspondingly and additionally provided with bulges, the pull handle, a spring, and a segmental type spring pipe. The utility model has the advantages of high work efficiency, low cost, material saving, and less environmental pollution.

Description

Injector for medical purpose

This utility model relates to medical apparatus and instruments, specifically is a kind of improved injector for medical purpose.

Existing injector for medical purpose can be divided into two kinds: a kind of is the glass syringe that carries out disinfection repeatedly and use; Another kind is for after the disposable use, the promptly depleted disposable sterilized injector of being made by plastics.These two kinds of syringes are formed by injection needle, injection overcoat, piston and the core bar that links to each other with the piston grafting.In use, core bar is drawn medicinal liquid inconvenience and effort; After the each use of glass syringe, need to increase cost; Disposable syringe is promptly discarded after once using, waste material, contaminated environment.

The purpose of this utility model is to provide a kind of improved injector for medical purpose, can increase work efficiency, and reduces cost, and saves material, and reduces environmental pollution, the convenient use.

This utility model relates to a kind of improved injector for medical purpose, comprise injection needle, injection overcoat, piston and the core bar that links to each other with the piston grafting, it is characterized in that described core bar made by rustless steel, be provided with the handle that can slide, rotate along core bar on the core bar surface, and and clamping each other between the crimping of overcoat rear end, inhale medicine and injection with convenient, and injection finishes separating between back core bar and the overcoat.

The crimping of described injection overcoat rear end is two symmetrical projections that are convex, and the handle correspondence is provided with gap, rotates the back clamping each other for the external diameter of injection overcoat and the internal diameter of handle.

The described handle that can slide, rotate along core bar is provided with and injects the grab of overcoat rotation back clamping.

Described core bar is through handle, and also being provided with successively can be along the spring of the slip of core bar surface, rotation, by joint formula bourdon tube; Described spring is built in and the spring base of the one of shaking hands and by between the joint formula bourdon tube, links to each other by screw thread between joint formula bourdon tube one end and the spring base, and the other end is connected in handle.

Effect of the present utility model is: core bar adopts rustless steel to make, and is reusable, do not need each back sterilization of using, and saved the core bar of disposable sterilized injector, reduces cost, and saves material, and reduces and pollutes; Be used in combination with the overcoat and the piston of disposable sterilized injector, prevent the cross infection of infectious disease; Use back injection overcoat, piston and core bar separated from one another, prevent the repeated use of disposable syringe, the harm that is caused; The core bar surface is set up spring assist and is inhaled medicine and injection, alleviates to take ampoule bottle on the other hand, takes the use inconvenience that syringe brought on the other hand.

Fig. 1 hands is inhaled the structural representation of formula syringe.

Fig. 2 is the another embodiment of Fig. 1.

The structural representation of Fig. 3 spring assist syringe.

Fig. 4 is the another embodiment of Fig. 3.

Description of drawings: 1 injection needle, 2 injection overcoats, 3 pistons, 4 crimpings, 5 projections, 6 core bars, 7 handles, 8 spring bases, 9 springs, 10 by joint formula bourdon tube, 11 handles.

Now in conjunction with the accompanying drawings the structure of this utility model is elaborated: as shown in the figure: injection needle, injection overcoat, piston are made by plastics, and core bar is made by rustless steel.

Among Fig. 1: the crimping of injection overcoat rear end is the convex projection, and the end that handle is connected with overcoat is established gap, the external diameter of injection overcoat and the internal diameter clamping after rotating to an angle each other of handle.Can finish easily after the clamping and inhale medicine and injection operation.

Among Fig. 2: the crimping of injection overcoat and the handle clamping that can slide, rotate and be provided with grab along core bar.Can finish easily after the clamping and inhale medicine and injection operation.

Among Fig. 3: the crimping of injection overcoat rear end is the convex projection, and the end that handle is connected with overcoat is established gap, the spring that the core bar surface also is provided with successively slidably, rotates, pursues joint formula bourdon tube; Described spring is built in and the spring base of the one of shaking hands and by between the joint formula bourdon tube, links to each other by screw thread between joint formula bourdon tube one end and the spring base, and the other end is connected in handle.By handle and handle, spring is capable of expansion and contraction each other, can finish easily and inhale medicine and injection operation.

Among Fig. 4: the crimping of injection overcoat and the handle clamping that can slide, rotate and be provided with grab along core bar.The spring that the core bar surface also is provided with successively slidably, rotates, by joint formula bourdon tube; Described spring is built in and the spring base of the one of shaking hands and by between the joint formula bourdon tube, links to each other by screw thread between joint formula bourdon tube one end and the spring base, and the other end is connected in handle.By handle and handle, spring is capable of expansion and contraction each other, can finish easily and inhale medicine and injection operation.

Claims

1 one kinds of improved injector for medical purpose, comprise injection needle, injection overcoat, piston and the core bar that links to each other with the piston grafting, it is characterized in that described core bar made by rustless steel, be provided with the handle that can slide, rotate along core bar on the core bar surface, and and clamping each other between the crimping of overcoat rear end, inhale medicine and injection with convenient, and injection finishes separating between back core bar and the overcoat.

2 improved injector for medical purpose as claimed in claim 1, the crimping that it is characterized in that described injection overcoat rear end are two symmetrical projections that are convex, and the handle correspondence is provided with gap, rotate the back clamping each other for the external diameter of injection overcoat and the internal diameter of handle.

3 improved injector for medical purpose as claimed in claim 1 is characterized in that the described handle that can slide, rotate along core bar is provided with and injects the grab of overcoat rotation back clamping.

4 improved injector for medical purpose as claimed in claim 1 is characterized in that described core bar through handle, and also being provided with successively can be along the spring of the slip of core bar surface, rotation, by joint formula bourdon tube;

Described spring is built in and the spring base of the one of shaking hands and by between the joint formula bourdon tube, links to each other by screw thread between joint formula bourdon tube one end and the spring base, and the other end is connected in handle.