CN103028168B

CN103028168B - Painless syringe

Info

Publication number: CN103028168B
Application number: CN201210100490.3A
Authority: CN
Inventors: 宣建民
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-04-05
Filing date: 2012-04-05
Publication date: 2016-08-10
Anticipated expiration: 2032-04-05
Also published as: CN103028168A

Abstract

The present invention relates to a kind of disposable painless syringe carrying out Silent Neuritis intramuscular injection, including grip part, contact site, disposable syringe, extension spring and switch.The present invention is made up of grip part and contact site, and syringe is placed in center, grip part, and both sides, grip part are provided with groove, is disposed with switch, switch rod, spring stack and extension spring, has switch cover outside groove in groove；There is injection orifice contact site bottom.The invention has the beneficial effects as follows: utilize extension spring for power, syringe needle is made to quickly pass through skin, arrive the degree of depth that muscle is suitable, thus it is painless, the medical skill meeting Painless Muscle Injection is conventional, eliminate the pain produced because of manual operation reason, it is applicable to the disposable syringe produced by national standard, and can not reuse, aseptic technique requirement and injection depth requirement can be reached, it is avoided that the generation of contact skin cross infection, rational in infrastructure, easy and simple to handle, anyone can be made to carry out rapidly Silent Neuritis intramuscular injection, it is particularly suitable for the injection of the preventive injection of child.

Description

Painless syringe

Technical field

The present invention relates to a kind of passive elastic force utilizing extension spring, enable to be positioned at the motion of the syringe quickly straight line of grip part, Carry out the syringe of Silent Neuritis intramuscular injection.

Background technology

Intramuscular injection is one of people's usual way using medicine, and medicine is expelled to the muscle of human body suitable position by syringe In, make medicine slowly absorb the purpose reaching treatment, in addition to the pain caused because of some drugs self, due to technical operation The pain that reason causes is the most common, and the person of being injected is agonizing, the medical personnel the most just started working and part in rural area from The personnel of thing medical and nursing work, some meetings cause the person of being injected to have a fainting spell during acupuncture treatment.The technical key point of Silent Neuritis intramuscular injection is two fast one slow, i.e. During injection, inserting needle speed wants fast, and injection liquid speed wants slow, pull out needle speed and want fast, has many medical and nursing work personnel can not be complete at present The full technical key point grasping inserting needle, this is the main cause causing pain.The technical key point of Silent Neuritis intramuscular injection inserting needle is: note The syringe that will be equipped with medicinal liquid when penetrating is vertically arranged in above the skin sterilized in the person of being injected injection site, mainly utilizes wrist power, arm Power assists, and makes syringe needle rapid perpendicular insertion broken skin skin, enters into intramuscular, stops after reaching appropriate depth, so, by In sharp syringe needle and quick inserting needle, making injection time extremely short, the person of being injected will not have the sensation of pain.Inject during inserting needle Device be not orthogonal to skin or (with) speed slow or (with) have the reasons such as vibration, all can cause the pain of the person of being injected；Note at present When emitter is applied to the injection of child's preventive injection, because the reason of children physique, the speed of inserting needle must slowly, will pain, Child is caused to cry and scream.The structure of patent of invention ZL200620159392.7 and ZL200820111877.8 is not suitable for disposably making With；The manufacturing process of ZL201020616719.5 and ZL201120063735.0 is relatively slower, affects manufacturing cost.

Summary of the invention

In order to achieve the above object, overcoming technological deficiency, the composition of the present invention is as follows:

According to an aspect of the present invention, it is provided that a kind of painless syringe, it includes: grip part, contact site, syringe, open Pass, spring and switch rod.Wherein, the lower end of grip part is connected with the upper end of contact site, and there is the muscle of annular junction；Grip part There is pushing assisted plate the both sides of upper end；Syringe it is disposed with in grip part；There is the groove of upper opening both sides, grip part；On injector syringe The pushing assisted plate of the switch portion of end is non-circular cylinder, and the pushing assisted plate in opposite side extension spring portion is the tetragonal body having spring stack；Syringe exists The pushing assisted plate of switch-side has hole, location, switch groove, otch and platform by the switch rod of elastic with being arranged in grip part sidewall Switch be connected；Grip part sidewall above switch opening and the sidewall below switch opening be not in approximately the same plane；Pin The spring stack of the cylinder pushing assisted plate in extension spring side is connected by the spring stack that extension spring is corresponding with groove lower end；The groove of the grip part in extension spring portion Towards a side opening, open outer side is connected with plate of remaining silent by impression hinge；There is the switch eaves of vertical direction in the outside of switch opening； It is disposed with switch cover outside switch eaves；All parts are the most aseptic, are all sealed in aseptic medical outer package.

The invention has the beneficial effects as follows: utilize extension spring for power, make syringe needle quickly pass through skin, arrive muscle suitable The degree of depth, thus painless, and the medical skill meeting Painless Muscle Injection is conventional, eliminates the pain produced because of manual operation reason, It is applicable to the syringe produced by national standard, it is impossible to enough reuse, aseptic technique requirement and injection depth requirement can be reached, It is avoided that the generation of contact skin cross infection, rational in infrastructure, easy and simple to handle, anyone can be made to carry out rapidly Silent Neuritis muscle note Penetrate, be particularly suitable for the injection of the preventive injection of child.

Accompanying drawing explanation

Fig. 1 is front view after painless syringe.

Fig. 2 is painless syringe top view.

Fig. 3-1 is switch rod front view；Fig. 3-2 is switch rod side view.

Fig. 4-1 is syringe extension spring portion side view；Fig. 4-2 is syringe switch portion side view.

Fig. 5-1 is switch cover front view；Fig. 5-2 is switch cover side view.

Fig. 6-1 is switch top view；Fig. 6-2 is switch-side view.

Fig. 7 is switch sections front view.

Detailed description of the invention

Below with reference to accompanying drawings, describe the present invention:

In the accompanying drawings: 1 is pushing assisted plate, 2 is grip part, and 3 is switch rod, and 4 is switch, and 5 is syringe, and 6 is contact site, 7 For hole, 8 is post, and 9 is extension spring, and 10 is switch cover, and 11 is switch eaves, and 12 for remaining silent plate, and 13 is impression hinge, and 14 is bullet Power sheet, 15 is groove, and 16 is otch.

Fig. 1 to Fig. 7 illustrates the overall structure of painless syringe and corresponding design of part.

As depicted in figs. 1 and 2, whole syringe is made up of the grip part (2) on top and the contact site (10) of bottom；Grip The syringe produced by national standard it is disposed with in addition to pushing assisted plate (1) in portion (22), the syringe (9) of syringe here Upper end does not has the pushing assisted plate (1) as ordinary syringe, the beneficially operation of syringe；There is crescent moon the both sides of grip part (2) upper end Shape, level pushing assisted plate (1), plays booster action；The inwall of grip part (2) contacts with the outer wall of syringe (9), So syringe (9) can move along a straight line in grip part (2)；Grip part (2) both sides are respectively arranged with a centrage same Vertical plane, cuboid, opening upwards groove (15), beneficially syringe (9) and the arrangement of miscellaneous part and motion, groove Bottom be inclined-plane, it is also possible to being that circular arc is connected with grip part (2), groove (15) communicates with the top of grip part (2), Be conducive to the motion of pushing assisted plate (1).Contact site (10) is cylindrical, it is also possible to after deducting syringe range ability, present Semi-conical narrow under width, so can make syringe run；Contact site (10) lower end is that level is inside, and center is circular Injection orifice (7), can allow syringe needle pass；Clamping structure is passed through in the upper end of contact site (10), with the lower end phase of grip part (2) Even, installing and take off conveniently, the top of contact site (10) is identical with the inside and outside footpath of grip part (2), and junction has respectively and is Wall thickness half, annular, etc. height, corresponding groove (15), play fixing effect, the most easily install and take off, Being uniform-distribution with 1 to 6 annular muscle in groove (15), the thickness of muscle is 0.1 millimeter to 1 millimeter, plays what reinforcement was fixed Effect.

As shown in Figure 1, Figure 2, Fig. 3-1, Fig. 3-2, Fig. 4-2, shown in Fig. 5-1, Fig. 5-2, Fig. 6-1, Fig. 6-2 and Fig. 7, Switch rod (3) is fixed on the pushing assisted plate (1) of non-circular column of syringe (5) side, non-circular includes ellipse, triangle, Polygon and other various erose all shapes than circular, switch rod (3) top have one with help The hole (7) that push pedal is corresponding, so can make switch rod (3) to rotate, play fixing effect；Switch rod (3) Upper, middle part is corresponding with the size of the groove of grip part (2) (15), in, size and the groove (15) switching (4) of bottom Size corresponding, be so conducive to switching rod (3) and move down；Switch rod (3) in, bottom have a upper end level, Free, bouncing plate (14) backward, the distance of the lower end horizontal level at middle part upper with switch rod (3), bouncing plate (14) upper end, Identical with the height of switch (4), there is a groove (15), on bouncing plate (14) between bouncing plate (14) and switch rod (3) Holding after contacting with switch rod (3), the rear portion of bouncing plate (14), without departing from the rear portion of switch rod (3) middle and lower part, so, is opened The when that pass rod (3) moving down on earth, bouncing plate (14) ejects afterwards through the groove (15) of switch (4), is stuck in switch (4) lower section, is that syringe (9) can not be drawn back, reaches disposable purpose.Switch (4) vertical openings is in the groove (15) of grip part Forward with switch rod (3) sidewall that contacts, more convenient, switch (4) in cuboid, in groove part have one and The length and width switch groove (15) identical, that run through up and down of switch rod (3) middle and lower part, can make switch rod (3) pass； Switch (4), in the top of switch groove (15) the inner, has one with switch groove (15) equal in width, interior with switching (4) The distance of end within 5 millimeters, downward platform within 5 millimeters, be do not inject before, switch rod (3) bottom is laid Place, play fixation, and be difficult to slip；Switch groove (15) sidewall have an otch (16) downwards, be for After injection completes, when firmly pressing up syringe, bouncing plate (14) can fracture switch (4), prevent again with, reach To disposable and the purpose of self-destruction.Switch (4) part outside groove, have one with switch (4) vertical and outside wall parallel Hole, location (7), be conducive to being accurately positioned when switch (4) are installed.Groove (15) is switching the inwall of opening above section, than Switch opening exceeds less than 5 millimeters with the outer wall of lower part, or groove (15) is switching the opening inwall with lower part, Exceeding less than 5 millimeters than the outer wall of switch opening above section, the upper end, lateral wall of groove (15) front portion is without prominent, so, Yield can be increased with disposal molding in process of production, reduce production cost.The two of groove (15) lateral wall of switch opening Lateral margin is disposed with the switch eaves (11) being perpendicular to sidewall, is used for disposing switch cover (10)；Switch cover (10) is arranged in switch eaves (11), it is used for protecting switch (4) not the most to be pressed into the syringe caused to lose efficacy.

As shown in Figure 1, Figure 2 with shown in Fig. 4-1, groove (15) opening forward in extension spring portion, it is also possible to opening towards the rear, injection The device syringe pushing assisted plate (1) in (5) extension spring portion is tetragonal body, towards the center of circle of syringe (5), and corresponding spring stack (8) Being perpendicular to pushing assisted plate (1), spring stack (8) is generally pylindrical, it is also possible to be other shapes, the most beneficially extension spring (9) Installation and fixing.The outside of opening is connected with plate of remaining silent (12) by impression hinge (13), the width of plate of remaining silent (12) Spending identical with opening with height, there is the prominent of retreating-proof the both sides of plate of remaining silent (12), and the both sides of groove (15) opening have corresponding Groove (15), so, be conducive to the installation of extension spring (9) when opening plate of remaining silent (12), in installation extension spring (9) After, close plate (12) of remaining silent, it is possible to protection extension spring (9) and pushing assisted plate (1), and does not falls out.Under the groove in extension spring portion End is fixed with and spring stack (8) the equidirectional spring stack (8) on pushing assisted plate (1), plays the other end of fixing extension spring (9) Effect, the installation of the most increasingly extension spring (9), the helical spring post (8) of pushing assisted plate is by extension spring (9) and groove (15) The spring stack (8) of lower end is connected, and makes extension spring (9) can provide power for syringe.

Grip part (22) and contact site (30) are transparent, use medical plastic manufacture, it can be seen that internal state, institute There is the most aseptic being sealed in aseptic outer package of parts, meet aseptic medical demands.

The operating process of this syringe is: this syringe, the most just in pressure state, only need to be opened packaging, take off contact site (30), utilize syringe needle aspiration medicinal liquid, after reaching required dosage, load onto contact site (30), syringe is placed in the most sterilized, Needing on the position of syringe, take switch protection cover (11), Push switch (24) away, now, switch rod (23) is through opening The switch groove closing (24) moves downward, and syringe is under the effect of extension spring (29), and sharp downward movement, syringe needle quickly enters Intramuscular, the pull bar of the emitter of falling pumping, seeing whether blood back, more slowly injection liquid, until completing, having extracted rapidly injection Device, cotton swab pushes down pin hole, and injection completes, and now, switch rod (23) of syringe is blocked by bouncing plate (34), it is impossible to quilt Again with, the most overall destruction syringe.Whole process, except because in addition to drug-induced pain, omnidistance according to painless The technical operation of injection.

The present invention is applicable to each medical institutions, prevention station and family and carries out intramuscular injection.

Claims

1. a painless syringe, it includes；Grip part, contact site, syringe, switch, stage clip and switch rod, is characterized in that: the lower end of grip part is connected with the upper end of contact site, there is the muscle of annular junction；There is oval pushing assisted plate the both sides of upper end, grip part；Syringe it is disposed with in grip part；There is the groove of upper opening both sides, grip part；The pushing assisted plate of the switch-side of injector syringe upper end is non-circular cylinder, and the pushing assisted plate of opposite side extension spring side is the tetragonal body having spring stack；Syringe has the switch that position hole, switch groove, otch and platform to be connected by the switch rod of elastic with being arranged in grip part sidewall at the pushing assisted plate of switch-side；Grip part sidewall above switch opening and the sidewall below switch opening be not in approximately the same plane；Syringe is connected by the spring stack that extension spring is corresponding with groove lower end at the spring stack of the pushing assisted plate of extension spring side；The groove of the grip part in extension spring portion is connected with plate of remaining silent towards a side opening, open outer side by impression hinge；There is the switch eaves of vertical direction in the outside of switch opening；It is disposed with switch cover outside switch eaves；All parts are the most aseptic, are all sealed in aseptic medical outer package.