CN104027873A - Medical medicine injector - Google Patents

Abstract

The invention discloses a medical medicine injector, aiming at providing a medical medicine injector capable of finishing back-suction and injection operations by keeping the same hand shape of holding the injector, thus reducing the pain of a patient during medicine injection, and reducing subsidiary-injuries. The medical medicine injector comprises a piston 1, a needle tube 2 and a needle head 3, wherein an annular thumb handle is arranged at the top end of the piston 1, and a middle-recessed cylindrical (waist-drum-shaped) index and middle finger handle is arranged on the front section of the needle tube 2. During the use of the medical medicine injector disclosed by the invention, the thumb is inserted in the thumb handle of the injector as a power, the index and middle fingers clamp the index and middle finger handle to fix a needle cylinder, and the thumb pulls backwards or pushes forwards the thumb handle to enable the injector to generate a function of back-sucking or injecting a medicine. The medical medicine injector disclosed by the invention is suitable for being used by medical care personnel in the medical field for injecting medicines for patients.

Description

Medical syringe

Technical field

The present invention relates to a kind of medical syringe, more particularly, it relates to a kind of with thumb handle and the medical syringe that shows middle finger handle.

Background technology

At present, known medical syringe is comprised of piston, syringe and syringe needle.Being in patient body during injectable drug, need first resorption judge whether syringe needle is strayed into blood vessel, afterwards injectable drug again.During resorption, concrete operations are to hold syringe with thumb and first finger, and little finger of toe and fourth finger are held piston and pulled back to produce negative pressure, by whether having blood to be inhaled in syringe, judge whether syringe needle is strayed into blood vessel.Need to convert afterwards the hand-type that grips syringe during injectable drug,, with showing fixedly syringe of middle finger, by thumb press piston end, piston be moved to syringe, thereby promotion syringe inner liquid medicine is injected in vivo from injection needle.In the process of conversion hand-type, inevitably cause injection needle too to move in patient body and produce discomfort, pain or secondary damage.

Summary of the invention

The object of the invention is to overcome the deficiency that existing syringe in use needs to convert hand-type, a kind of simple in structure, easy to operate medical syringe is provided, use this syringe when being patient infusion medicine, when resorption action is transformed into injectable drug action, do not needing to convert hand-type.

The present invention is achieved in that syringe piston end has an annular thumb handle structure, and injector syringe part upper end has one to be umbilicate cylindric (waist drum sample) and to show middle finger handle arrangement.When the present invention uses, thumb inserts the annular thumb handle structure of syringe piston end, shows that the middle finger handle arrangement that shows of middle finger clamping syringe upper end caves in.Take thumb as power, show fixedly syringe of middle finger, thumb pulls back or promote forward annular thumb handle structure makes syringe produce the effect of resorption or injectable drug.The invention has the beneficial effects as follows: (1) is simple to operate when injectable drug, do not need conversion to grip syringe hand-type, patient's pain while reducing injectable drug, reduces secondary damage; (2) simple in structure, be easy to manufacture, only need on original syringe basis, slightly change, can be made into.

Accompanying drawing explanation

Fig. 1 is syringe construction schematic diagram of the present invention;

Fig. 2 is the piston configurations schematic diagram of Fig. 1;

Fig. 3 is the injector syringe structural representation of Fig. 1.

In figure: piston 1 syringe 2 syringe needle 3 thumb handle 4 piston rod 5 piston seal heads 6 show middle finger handle 7 syringe main bodys 8

The specific embodiment

Below in conjunction with accompanying drawing, introduce the present invention.With reference to accompanying drawing, when the present invention uses, thumb inserts the annular thumb handle 4 of syringe piston 1 end, that shows middle finger clamping syringe 2 upper ends shows middle finger handle 7 structure recess, when resorption moves, thumb dorsal part firmly pulls back annular thumb handle 4, thumb handle 4 pulls back piston seal head 6 by piston rod 5, show that middle finger clamping syringe 2 shows middle finger handle 7 simultaneously, finger dorsal part contact syringe shows middle finger handle 7 concave face distally, make the interior generation negative pressure of syringe main body 8, according to having or not blood backflow to judge whether syringe needle 3 is strayed into blood vessel.If there is no blood backflow, can be to injectable drug in body, now do not need to convert hand and grip syringe hand-type, only need change respectively to point power thrusts and can realize injectable drug, be that thumb veutro is pressed forward annular thumb handle 4, that shows middle finger veutro contact syringe 2 shows middle finger handle 7 concave face nearsides, makes the interior generation high pressure of syringe main body 8, and medicine is expelled in human body by syringe needle 3.

Claims (3)

1. a syringe, comprises piston, needle tubing and syringe needle, it is characterized in that, described piston tip is provided with thumb handle, and described needle tubing leading portion is provided with and shows middle finger handle.

2. syringe according to claim 1, is characterized in that, described thumb handle in the form of a ring.

3. syringe according to claim 1, is characterized in that, the described middle finger handle that shows is umbilicate cylindric (waist drum sample).