CN2156867Y - Medical injector - Google Patents

Abstract

The utility model relates to a medical injector, composed of a needle head, a needle cylinder, a piston and a draw rod. The utility model is characterized in that the needle cylinder comprises a needle cylinder cap and a needle cylinder rod. A needle head is fixed at the center of the top of the needle cylinder with an umbelliform top face, the finishing end is tight sheathed in one end of the needle cylinder rod, and the other end of the needle cylinder rod is folded inwards into a ring-shaped retainer ring. The piston is tight sheathed in the needle cylinder rod, a draw rod is inserted in the needle cylinder rod, one end is connected with the piston, and the other end is provided with a handle. The utility model can not only stop the cross infection owing to inadvertency, but also has the same using method to an original injector. The utility model has the advantages of simple manufacturing process, convenient manufacture and low cost.

Description

Medical injector

This utility model relates to a kind of medical apparatus and instruments, a kind of injector for medical purpose of more specifically saying so.

To patient's chemical examination of drawing blood, often adopt the syringe of injectable drug in the hospital, syringe needle is thrust blood vessel after, the tube core of pull syringe backward, it is in vitro ready that blood in the venous patient is sucked, and sticks on the labeling postscript patient's name and send and test.Troublesome poeration easily produces cross infection.For addressing the aforementioned drawbacks, notification number CN207800U discloses a kind of hemospast, the tube core that has replaced the pull syringe by test tube, after syringe needle thrusts venous patient, test tube is pushed in the needle tubing from the needle tubing afterbody, make that syringe needle stings the flexible glue plug in the needle tubing, blood promptly flows into test tube, extracts test tube after the capacity and send and test.Though solved operation inconvenience and the defective that prevents cross infection, using method and syringe are different fully, thereby user is difficult to accept, and simultaneously, makes difficulty, cost height, the injector for medical purpose of double as test tube.

The purpose of this utility model is realized by following technical scheme.

This utility model is made up of syringe needle, syringe, piston and pull bar, it is characterized in that: syringe comprises syringe medicated cap and cylindrical shape syringe bar, end face is the fastening syringe needle in syringe crown end center of umbrella shape, and end closely is socketed on syringe bar one end, and syringe bar other end invagination is ring washer circlewise; Rubber piston tightly is placed in the syringe bar, and pull bar inserts the syringe bar, and an end is connected in piston, and the other end has one handle.

During use, syringe needle thrusts vein blood vessel, and pull pull bar backward sucks patient's blood in the syringe rod tube, extract syringe needle after the capacity, continue the pull pull bar, make piston be pulled to syringe bar afterbody ring-type ring washer, make it become a test tube, unload lower link, take off the syringe medicated cap, blood sample can be sent and test.

The utility model has the advantages that the cross infection that not only can stop owing to causing accidentally, and the roughly the same former syringe of using method, be convenient to promote, technology is simple again, and is easily manufactured, with low cost.

Accompanying drawing is this utility model structural representation.

By the following examples, in conjunction with the accompanying drawings, this utility model is further described.

Embodiment:

(referring to accompanying drawing) end has the cylindrical pull bar 4 insertion sidewalls of handle 7 to be provided with metering scale and labelling labeling, the rear end invagination is the cylindrical shape syringe bar 2 of ring washer 5 circlewise, be screwed into by the screw thread on pull bar 4 terminations in the screw at the rubber piston 3 tail ends middle part that tightly is placed in syringe bar 2 leading sections, again end face is umbrella shape, syringe medicated cap 1 end of the fastening syringe needle 6 in center, top closely is socketed on syringe bar 2 front ends.The syringe pull bar can adopt non-toxic plastic to make.Before processing is dispatched from the factory, with syringe needle 6 overcoats one needle guard, sterilize again, sterilization wrap can be standby.

Claims (3)

1, a kind of injector for medical purpose is made up of syringe needle, syringe, piston and pull bar, it is characterized in that:

A. described syringe comprises syringe medicated cap and cylindrical shape syringe bar, and end face is the fastening syringe needle in syringe crown end center of umbrella shape, and end closely is socketed on syringe bar one end, and syringe bar other end invagination is ring washer circlewise;

B. rubber piston tightly is placed in the syringe bar, and pull bar inserts the syringe bar, and an end is connected in piston, and the other end has one handle.

2, syringe according to claim 1 is characterized in that: cylindrical pull bar one end is screwed into the screw at piston rod tail end middle part with screw thread, is linked to be an integral body.

3, syringe according to claim 1 is characterized in that: the sidewall of syringe bar is provided with metering scale and labelling labeling.

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