CN102648995A

CN102648995A - Painless syringe

Info

Publication number: CN102648995A
Application number: CN2012101083587A
Authority: CN
Inventors: 宣建民
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-04-13
Filing date: 2012-04-13
Publication date: 2012-08-29
Anticipated expiration: 2032-04-13
Also published as: CN102648995B

Abstract

The invention relates to a disposable painless syringe capable of realizing painless intramuscular injection. The disposable painless syringe comprises a holding part, a contact part, a disposable painless syringe, a pull spring and a switch. The disposable painless syringe consists of a holding part and a contact part, wherein the syringe is arranged in the right middle of the holding part, two sides of the holding part are provided with grooves, the switch, a switch bar, a spring post and the pull spring are arranged in the grooves, a switch cover is arranged outside the grooves, and the bottom end of the contact part is provided with injection holes. The disposable painless syringe has the beneficial effects that the pull spring is used as the motive power, the switch can be pressed under the condition without opening the switch cover, and a needle head of the syringe fast penetrates through the skin to reach the proper depth of muscles, so the painless effect is realized, the medical technical convention of painless intramuscular injection is met, the pain generated because of artificial operation is eliminated, in addition, the disposable painless syringe cannot be used again, the sterile technical requirement and the injection depth requirement can be reached, the structure is reasonable, the operation is simple and convenient, in addition, the painless intramuscular injection can be fast carried out by any person, and the disposable painless syringe is particularly suitable for inoculation injection of children.

Description

Painless syringe

Technical field

The present invention relates to a kind of passive elastic force that utilizes extension spring, make the syringe that is positioned at the grip part can quick collinear motion, the syringe that carries out the intramuscular injection of painless property.

Background technology

Intramuscular injection is that people make one of usual way of medicament; Medicine makes drug slow absorb the purpose that reaches treatment, except the pain that causes because of some drugs self through the intramuscular of injector to inject to the human body suitable position; Owing to the pain that the technical operation reason causes is very common; Agonizing by the injector, medical personnel that especially just started working and part are engaged in the personnel of medical and nursing work in the rural area, and the meeting that has causes by the injector has a fainting spell during acupuncture treatment.The technical key point of painless property intramuscular injection is two fast one slow, and inserting needle speed wants fast when promptly injecting, and it is slow that injection liquid speed is wanted, and pulls out needle speed and wants fast, and many medical and nursing work personnel technical key point of inserting needle on top of arranged at present, and this is the main cause that causes pain.The technical key point of painless property intramuscular injection inserting needle is: the syringe that medicinal liquid will be housed during injection vertically places by top, injector injection site disinfectant skin, mainly utilizes wrist power, and arm strength is auxiliary; Make the rapidly vertical prick skin of syringe needle, enter into intramuscular, stop after reaching appropriate depth; Like this; Because sharp syringe needle and inserting needle fast make inject time extremely short, will not had the sensation of pain by the injector.During inserting needle syringe be not orthogonal to skin or (with) speed slow or (with) reason such as vibration is arranged, all can cause by injector's pain; When at present syringe was applied to the injection of child's preventive injection, because the reason of children physique, the speed of inserting needle must be slowly, will pain, cause that the child cries and screams.The structure of patent of invention ZL200620159392.7 and ZL200820111877.8 is not suitable for disposable use; The manufacturing process of ZL201020616719.5 and ZL201120063735.0 is slower, influences manufacturing cost.

Summary of the invention

In order to achieve the above object, overcome technological deficiency, of the present invention being constructed as follows:

According to an aspect of the present invention, a kind of painless syringe is provided, it comprises: grip part, contact site, syringe, switch, spring and switch rod.Wherein, the lower end of grip part links to each other with the upper end of contact site, and there is annular muscle the junction; There is pushing assisted plate the both sides of upper end, grip part; Be furnished with syringe in the grip part; There is the groove of top opening the both sides, grip part; The pushing assisted plate of the switch portion of injector syringe upper end is non-circular cylinder, and the pushing assisted plate of opposite side extension spring portion is the tetragonal body that spring stack is arranged; Syringe the pushing assisted plate of the switch-side switch rod through bouncing plate is arranged be arranged in that the grip part sidewall has locating hole, the switch that is positioned at pushing assisted plate, switch groove, otch and the platform in the outside links to each other; The sidewall of grip part below sidewall above the switch opening and switch opening be not on same plane; Syringe links to each other with the corresponding spring stack in groove lower end through extension spring at the spring stack of the pushing assisted plate of extension spring side; The groove of the grip part of extension spring portion is towards a side opening, and open outer side links to each other with the plate of remaining silent through the impression hinge; There is the switch eaves of horizontal direction in the outside of switch opening; The switch eaves is furnished with switch cover outward; All parts are all aseptic, all are sealed in the aseptic medical outer package.

The invention has the beneficial effects as follows: utilize extension spring to be power, make syringe needle pass skin rapidly, arrive the muscle proper depth; Thereby painless, the medical skill that meets painless intramuscular injection is conventional, has got rid of the pain that produces because of the manual operation reason; Be applicable to the syringe of producing by national standard, can not reuse, can reach aseptic technique requirement and injection depth requirement; Can avoid the generation of contact skin cross infection, rational in infrastructure, easy and simple to handle; Can make anyone carry out the intramuscular injection of painless property rapidly, the injection of especially suitable child's preventive injection.

Description of drawings

Fig. 1 is a front view behind the painless syringe.

Fig. 2 is the painless syringe vertical view.

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

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

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

Fig. 6-1 is the switch vertical view; Fig. 6-2 is the switch-side view.

Fig. 7 is the switch sections front view.

The specific embodiment

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

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

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

As depicted in figs. 1 and 2, whole syringe is made up of the grip part (2) on top and the contact site (7) of bottom; Be furnished with the syringe of except that pushing assisted plate (1), producing by national standard in the grip part (22), the upper end of the syringe of the syringe here (9) as the pushing assisted plate (1) of ordinary syringe, does not help the operation of syringe; There is pushing assisted plate (1) meniscate, level the both sides of upper end, grip part (2), play booster action, and pushing assisted plate (1) is forwardly not outstanding, helps the die casting of mould like this, improves output and production efficiency; The inwall of grip part (2) contacts with the outer wall of syringe (9), and syringe (9) can be done rectilinear motion in grip part (2) like this; Respectively there is a centrage both sides, grip part (2) at same vertical plane, cuboid, the opening groove (15) that makes progress; Help the arrangement and the motion of syringe (9) and miscellaneous part; Groove be the inclined-plane bottom; Also can be that circular arc links to each other with grip part (2), groove (15) communicates with the top of grip part (2), helps the motion of pushing assisted plate (1).Contact site (7) is cylindrical, also can after deducting the syringe range ability, be semi-conical wide at the top and narrow at the bottom, can make the syringe operation like this; It is inside that contact site (7) lower end is level, and the center is circular injection orifice (7), can let syringe needle pass; The upper end of contact site (7), is installed and is taken off conveniently with the lower ends of grip part (2) through the cassette structure; The top of contact site (7) is identical with the inside and outside footpath of grip part (2), the junction have respectively be wall thickness half the, groove annular, equal altitudes, corresponding (15), play fixed effect; Also easy mounting with take off; Be uniform-distribution with 1 to 6 annular muscle in the groove (15), the thickness of muscle is 0.1 millimeter to 1 millimeter, plays and strengthens fixed effect.

Like Fig. 1, Fig. 2, Fig. 3-1, Fig. 3-2, Fig. 4-2; Fig. 5-1, Fig. 5-2, Fig. 6-1, Fig. 6-2 and shown in Figure 7, switch rod (3) is fixed in the pushing assisted plate (1) of the non-circular cylinder of syringe (6) one sides, non-circular ellipse, the triangle of comprising; Polygon and other various erose all shapes except circle; One and the corresponding hole of pushing assisted plate (7) are arranged at the top of switch rod (3), and switch rod (3) can not rotated, and play fixed effect; The groove (15) of the going up of switch rod (3), middle part and grip part (2) big or small corresponding, in, the groove (15) of the size of bottom and switch (4) big or small corresponding, help switch rod (3) like this and move down; In the switch rod (3), a upper end level, free, bouncing plate backward (14) are arranged at the bottom; The distance of the lower end horizontal level in the middle part of go up with switch rod (3) bouncing plate (14) upper end, identical with the height of switch (4), between bouncing plate (14) and the switch rod (3) groove (15) is arranged; Bouncing plate (14) upper end is with after switch excellent (3) contacts; The rear portion of bouncing plate (14) does not exceed the rear portion of switch rod (3) middle and lower part, like this, and when switch rod (3) moves down on earth; Bouncing plate (14) passes groove (15) back of switch (4) and ejects; Being stuck in switch (4) below, is that syringe (9) can not be drawn back, and reaches disposable purpose.The groove (15) of switch (4) vertical openings in grip part sidewall forward, that contact with switch rod (3); More convenient; Switch (4) is " U " font; Part has a length switch groove identical with width, that run through up and down (15) with switch rod (3) middle and lower part in groove, and switch excellent (3) is passed; Switch (4) is at the inner upper and lower of switch groove (15), respectively have one with distance switch groove (15) width of etc.ing, that follow switch (4) inner terminal within 5 millimeters, downward platform within 5 millimeters, be before not injecting; The platform of top is the place that switch rod (3) is laid bottom; Play fixation, and be difficult for slippage, after the injection; The upper end that the platform of below blocks the bouncing plate (14) of switch rod (3); Switch rod (3) and switch (4) can not be moved, and syringe (9) can not be drawn back, and reaches disposable purpose; Switch groove (15) sidewall has an otch (16) downwards, is for after accomplishing in injection, and firmly upwards during the pressing tube, bouncing plate (14) switch (4) that can fracture prevents to utilize once more, reaches disposable and purpose self-destruction.The part of switch (4) outside groove, it can be circular that the locating hole (8) of a vertical direction, locating hole (8) are arranged, and also can be non-circular, accurately locatees when helping installing switch (4).The part of switch (4) outside groove is to the end of rear section; Pushing assisted plate (1) away from the syringe direction is arranged, like this can be under the situation of not taking off switch cover (15), through the combined effect of forefinger and thumb; Can press switch (4), more convenient to operate.Groove (15) is at the inwall of switch opening with top, exceeds with the outer wall of lower part than switch opening to be no more than 5 millimeters, like this, and in process of production can disposal molding, increase output, reduce production costs.The top of the groove of switch opening (15) lateral wall is furnished with the switch eaves (11) perpendicular to sidewall, is used to settle switch cover (10); Switch cover (10) is " C " font; There is switch eaves bayonet socket the top; Corresponding with the structure of switch opening top and the bottom, there is the sidewall of vertical direction both sides, also can not have the sidewall of vertical direction; Switch cover (10) is arranged in switch eaves (11), is used for protection switch (4) and is not pressed into the syringe that causes before use.

Shown in Fig. 1, Fig. 2 and Fig. 4-1, the groove of extension spring portion (15) is opening towards the place ahead, also opening towards the rear; Injector syringe is a tetragonal body at the pushing assisted plate (1) of (5) extension spring portion; The center of circle towards syringe (6), corresponding spring stack (9) are perpendicular to pushing assisted plate (1), and spring stack (9) is generally cylindrical; Also can be other shapes, help the installation of extension spring (10) and fixing like this.The outside of opening is connected with the plate of remaining silent (12) through impression hinge (13), and the width of the plate of remaining silent (12) is identical with opening with height, and there is anti-withdraw from outstanding the both sides of the plate of remaining silent (12); There is corresponding groove (15) both sides of groove (15) opening, like this, when opening the plate of remaining silent (12), help the installation of extension spring (10); After installation extension spring (10); The plate (12) of remaining silent that closes can be protected extension spring (10) and pushing assisted plate (1), and can not deviate from.The lower end of the groove of extension spring portion be fixed with pushing assisted plate (1) on the equidirectional spring stack of spring stack (9) (9); Play the effect of the other end of fixedly extension spring (10); The also installation of more and more extension spring (10); The helical spring post (9) of pushing assisted plate links to each other through the spring stack (9) of extension spring (10) with groove (15) lower end, makes extension spring (10) power is provided for syringe.

Grip part (2) and contact site (7) are transparent, use the medical plastic manufacturing, can see inner state, and what all parts were all aseptic is sealed in the aseptic outer package, meets aseptic medical requirement.

The operating process of this syringe is: this syringe just is pressure state in packing, only need unpack, and takes off contact site (7), utilizes the syringe needle aspiration medicinal liquid; After reaching required dosage, load onto contact site (7), syringe is placed on already sterilised, as the to need syringe position, need not take switch protection cover (11) away; Through the combined effect of forefinger and thumb, the pushing assisted plate (1) of direct Push switch (4), at this moment, the switch groove that switch rod (3) passes switch (4) moves downward; Syringe moves downward under the effect of extension spring (10) fast, and syringe needle gets into intramuscular rapidly, takes out the pull bar of syringe; Whether have blood back, slow again injection liquid up to completion, is extracted syringe rapidly if observing; Cotton swab is pushed down pin hole, and injection is accomplished, at this moment; The bouncing plate (14) of the switch rod (3) of syringe is blocked by switch (4), can not be utilized once more, the whole more at last syringe of destroying.Whole process, except because the drug-induced pain, omnidistance technical operation according to painless injection.

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

Claims

1. painless syringe, it comprises: grip part, contact site, syringe, switch, spring and switch rod, it is characterized in that: the lower end of grip part links to each other with the upper end of contact site, and there is annular muscle the junction; There is pushing assisted plate the both sides of upper end, grip part; Be furnished with syringe in the grip part; There is the groove of top opening the both sides, grip part; The pushing assisted plate of the switch portion of injector syringe upper end is non-circular cylinder, and the pushing assisted plate of opposite side extension spring portion is the tetragonal body that spring stack is arranged; Syringe the pushing assisted plate of the switch-side switch rod through bouncing plate is arranged be arranged in that the grip part sidewall has locating hole, the switch that is positioned at pushing assisted plate, switch groove, otch and the platform in the outside links to each other; The sidewall of grip part below sidewall above the switch opening and switch opening be not on same plane; Syringe links to each other with the corresponding spring stack in groove lower end through extension spring at the spring stack of the pushing assisted plate of extension spring side; The groove of the grip part of extension spring portion is towards a side opening, and open outer side links to each other with the plate of remaining silent through the impression hinge; There is the switch eaves of horizontal direction in the outside of switch opening; The switch eaves is furnished with switch cover outward; All parts are all aseptic, all are sealed in the aseptic medical outer package.