A kind of double layer security syringe
Technical field
The utility model relates to technical field of medical equipment, specially a kind of double layer security syringe.
Background technique
Syringe is a kind of common medical instruments.Early in the 15th century, Italian's Ka Di Nellie just proposes syringe
Principle, mainly extracts with syringe needle or injects gas or liquid, syringe can be used for Medical Devices, container, such as some
Scientific instrument in chromatography are injected across diaphragm of rubber.But existing syringe is when winter is colder, by ice-cold medicament
It is injected into patient's body, is easy to produce the discomfort of patient, in use, since handle is too small, it may appear that on slippery ground situation, and
After syringe use, syringe needle is mounted on syringe, easily hurts people, causes other people to infect, does not have between push rod and syringe any
Object barrier, it is easy to extract, cause danger.In view of the above-mentioned problems, carrying out innovative design on the basis of original syringe.
Utility model content
The purpose of this utility model is to provide a kind of double layer security syringes, to solve to propose in above-mentioned background technique not having
There is the problem of heat insulating ability, handle is too small on slippery ground, and syringe needle is easily hurted sb.'s feelings, and push rod is drawn out easily.
To achieve the above object, the utility model provides the following technical solutions: a kind of double layer security syringe, including injection
Device inner tube, needle stand, syringe outer tube, piston head and handle, the top of syringe inner tube are provided with syringe bottom tube, and needle stand is located at needle
The apical lateral of cylinder bottom tube, and the upper end of needle stand is equipped with syringe needle, syringe outer tube is located at the outside of syringe inner tube, and injects
Scale is provided on the outside of device inner tube, piston head is located at the top of piston, and piston is located at the inside of syringe inner tube, handle position
Inner bottom in the bottom of syringe inner tube, and syringe inner tube is provided with rubber ring, and push rod is connected with below piston, and
Press surface is provided with below push rod.
Preferably, the sawtooth is located at the inside of needle stand, and sawtooth is inlayed with needle stand and connect.
Preferably, needle holder structure triangular in shape, and itself and needle stand are Detachable connection structure.
Preferably, the external surface area of the piston head is equal with the inner wall area of syringe bottom tube, and piston head and syringe bottom
The gradient of pipe is equal.
Preferably, there are four equal sizes grooves for the side setting of the handle.
Preferably, the press surface is circular groove structure.
Compared with prior art, the utility model has the beneficial effects that the double layer security syringe, using the double-deck injection needle
Cylinder, the double-deck syringe can play insulation effect, will not be under colder weather, and patient generates discomfort because injecting ice-cold medicament,
Piston head and syringe bottom tube in syringe coincide, and effectively reduce the medicament stayed in needle tubing, avoid the waste of medicament, effectively keep away
The mistake for exempting from therapeutic amount has sawtooth connection between needle stand and needle tubing, increase the stability of syringe needle, and syringe needle is removable with needle stand
Connection is unloaded, after syringe is finished, syringe needle can be extracted, it is ensured that not will cause the case where syringe needle is hurted sb.'s feelings, handle is groove type, is increased
Big finger holds area, and finger is fixed in a groove, avoids on slippery ground phenomenon caused by due to handle area is too small, hand
The inside of handle is equipped with rubber ring, and the inner bottom of syringe inner tube has rubber ring, and effective anti-throw-out lever is drawn out syringe and makes
At danger, the press surface above push rod is groove type, is coincide with thumb, and forced area is increased, and more ensures pressing push rod
Safety.
Detailed description of the invention
Fig. 1 is the utility model positive structure schematic;
Fig. 2 is the utility model overlooking structure diagram;
Fig. 3 is the utility model syringe needle mounting structure schematic diagram.
In figure: 1, syringe inner tube, 2, syringe bottom tube, 3, needle stand, 31, sawtooth, 32, needle holder, 4, syringe needle, 5, syringe
Outer tube, 6, scale, 7, piston head, 8, piston, 9, handle, 91, groove, 10, rubber ring, 11, push rod, 12, press surface.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of double layer security syringe, including syringe
Inner tube 1, needle stand 3, syringe outer tube 5, piston head 7 and handle 9, the top of syringe inner tube 1 are provided with syringe bottom tube 2, needle stand
3 are located at the apical lateral of syringe bottom tube 2, and the upper end of needle stand 3 is equipped with syringe needle 4, and sawtooth 31 is located at the inside of needle stand 3, and saws
Tooth 31 is inlayed with needle stand 3 to be connect, the structure triangular in shape of needle holder 32, and itself and needle stand 3 are Detachable connection structure, needle stand 3 and needle
There is sawtooth to inlay connection between pipe, increase the stability of syringe needle 4, syringe needle 4 is to be detachably connected with needle stand 3, and syringe is finished
Later, syringe needle 4 can be extracted, it is ensured that not will cause the case where syringe needle 4 is hurted sb.'s feelings, syringe outer tube 5 is located at the outer of syringe inner tube 1
Side, and the outside of syringe inner tube 1 is provided with scale 6, the double-deck syringe can play a little insulation effect, will not be in colder weather
Under, patient generates discomfort because injecting ice-cold medicament, and piston head 7 is located at the top of piston 8, and piston 8 is located in syringe
The external surface area of the inside of pipe 1, piston head 7 is equal with the inner wall area of syringe bottom tube 2, and piston head 7 and syringe bottom tube 2 are inclined
Gradient is equal, and the piston head 7 in syringe and syringe bottom tube 2 are coincide, and effectively reduces the medicament stayed in needle tubing, avoids the wave of medicament
Take, handle 9 is located at the bottom of syringe inner tube 1, and there are four equal sizes groove 91, handle 9 is recessed for the side setting of handle 9
Groove profile, increase finger holds area, and finger is fixed in groove 91, takes caused by avoiding due to 9 area of handle is too small
Unstable phenomenon, the inner bottom of syringe inner tube 1 have rubber ring 10, and effective anti-throw-out lever 11 is drawn out syringe and causes to endanger
Danger, the lower section of piston 8 is connected with push rod 11, and the lower section of push rod 11 is provided with press surface 12, and press surface 12 is circular groove knot
The press surface 12 of structure, 11 top of push rod is groove type, coincide with thumb, increases forced area, more ensures pressing push rod 11
Safety.
Working principle: firstly, by the installation to syringe bottom tube 2 of needle stand 3, the sawtooth 31 in syringe bottom tube 2 blocks needle stand 3
In syringe inner tube 1, the shaking of syringe needle 4 is not easily caused, pushes press surface 12, piston head 7 and 2 inside kissing of syringe bottom tube
It closes, squeezes out extra air, make full use of medicament, effectively reduce the medicament stayed in needle tubing, avoid the waste of medicament, take out
Pulling-pushing rod 11 holds the groove 91 on handle 9 in medicament inhalation syringe inner tube 1, avoids due to 9 area of handle is too small
Caused by slippery ground phenomenon, the inner bottom of syringe inner tube 1 has rubber ring 10, effective anti-throw-out lever 11 be drawn out syringe and
Danger is caused, press surface 12 is pushed, medicament is injected, after syringe is finished, syringe needle 4 is separated with needle holder 32, used needle
First 4 throw away, and avoid injuring other people or unnecessary infection appearance, here it is the working principles of the double layer security syringe.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.