CN103028168A

CN103028168A - Painless injection syringe

Info

Publication number: CN103028168A
Application number: CN2012101004903A
Authority: CN
Inventors: 宣建民
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-04-05
Filing date: 2012-04-05
Publication date: 2013-04-10
Anticipated expiration: 2032-04-05
Also published as: CN103028168B

Abstract

The invention relates to a painless injection syringe for painless intramuscular injection. The painless injection syringe comprises a holding part, a contact part, a portable injection syringe, a tension spring and a switch. The painless injection syringe consists of the holding part and the contact part. The injection syringe is placed in the middle of the holding part. Grooves are arranged on both sides of the holding part. Each groove is internally provided with a switch, a switch rod, a spring column and a tension spring. A switch cover is arranged outside the groove. An injection hole is formed at the bottom end of the contact part. The painless injection syringe provided by the invention has the beneficial effects that powered by the tension spring, the syringe needle passes through skin quickly to appropriate depth of muscle so that people are painless, the painless injection syringe meets the medical technical regulations of painless intramuscular injection, pain caused by manual operation is eliminated, and the painless injection syringe is suitable for a disposable syringe produced according to national standard. The painless injection syringe cannot be used again, so that the aseptic technical requirements and injection depth requirements are met. The painless injection syringe can avoid cross infection caused by skin contact and is reasonable in structure and simple and convenient to operate. Painless intramuscular injection can be carried out on any one quickly, so that the painless injection syringe is in particular suitable for injection of preventive injection for children.

Description

Painless syringe

Technical field

The present invention relates to a kind of passive elastic force that utilizes extension spring, make the fast motion of straight line of syringe that is positioned at the grip part, the syringe that carries out the Silent Neuritis intramuscular injection.

Background technology

Intramuscular injection is that people use one of usual way of medicine, medicine is by the intramuscular of injector to inject to the human body suitable position, make drug slow absorb the purpose that reaches treatment, except the pain that causes because of some drugs self, owing to the pain that the technical operation reason causes is very common, the person of being injected is agonizing, and the 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 that the person of being injected has a fainting spell during acupuncture treatment.The technical key point of Silent Neuritis intramuscular injection is two fast one slow, and inserting needle speed wants fast when namely injecting, and it is slow that injection liquid speed is wanted, and pulls out needle speed and wants fast, and the on top of technical key point of inserting needle of many medical and nursing work personnel be arranged at present, and this is the main cause that causes pain.The technical key point of Silent Neuritis intramuscular injection inserting needle is: the skin top that the syringe that medicinal liquid will be housed during injection vertically places the person of being injected injection site to sterilize, mainly utilize wrist power, arm strength is auxiliary, make 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, the person of being injected will not have the sensation of pain.During inserting needle syringe be not orthogonal to skin or (with) speed slow or (with) reason such as vibration is arranged, all can cause the person's of being injected 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, affects 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, provide a kind of painless syringe, 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 the muscle of annular 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 upper 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 section is the tetragonal body that spring stack is arranged; Syringe the pushing assisted plate of the switch-side switch rod by bouncing plate is arranged be arranged in the grip part sidewall and have the switch of locating hole, switch groove, otch and platform to link to each other; The sidewall of grip part below the sidewall above the switch opening and switch opening be not on same plane; Syringe links to each other by the extension spring spring stack corresponding with the groove lower end at the spring stack of the pushing assisted plate of extension spring side; The groove of the grip part of extension spring section is towards a side opening, and open outer side links to each other with the plate of remaining silent by the impression hinge; There is the switch eaves of vertical 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 rapidly skin, arrive the suitable degree of depth of muscle, thereby painless, the medical skill that meets Painless Muscle Injection is conventional, got rid of the pain that produces because of the manual operation reason, be applicable to the syringe by national standard production, 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 rapidly the Silent Neuritis intramuscular injection, the injection of especially suitable child's preventive injection.

Description of drawings

Fig. 1 is front view behind the painless syringe.

Fig. 2 is the 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 section side view; Fig. 4-2 is 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 top 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 syringe, and 6 is contact site, 7 is the hole, and 8 is post, and 9 are extension spring, and 10 is switch cover, 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 overall structure and the corresponding design of part of painless syringe to Fig. 7.

As depicted in figs. 1 and 2, whole syringe is comprised of the grip part (2) on top and the contact site (10) of bottom; Be furnished with the syringe of producing by national standard except pushing assisted plate (1) 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, is not conducive to the operation of syringe; There is pushing assisted plate (1) meniscate, level the both sides of upper end, grip part (2), play booster action; 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, opening upwards groove (15), be conducive to arrangement and the motion of syringe (9) and miscellaneous part, groove be bottom the inclined-plane, also can be that circular arc links to each other with grip part (2), groove (15) communicates with the top of grip part (2), is conducive to the motion of pushing assisted plate (1).Contact site (10) is cylindrical, also can be semi-conical wide at the top and narrow at the bottom after deducting the syringe range ability, can make like this syringe operation; It is inside that contact site (10) lower end is level, and the center is circular injection orifice (7), can allow syringe needle pass; Clamping structure is passed through in the upper end of contact site (10), link to each other with the lower end of grip part (2), install and take off conveniently, the top of contact site (10) is identical with the inside and outside footpath of grip part (2), the junction have respectively be wall thickness half, annular, equal altitudes, corresponding groove (15), play fixing effect, also install easily and 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 fixing effect.

Such as 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 (5) one sides, non-circular ellipse, the triangle of comprising, polygon and other various erose all shapes except circle, a hole corresponding with pushing assisted plate (7) is arranged at the top of switch rod (3), switch rod (3) can not rotated, play fixing effect; Upper, the middle part of switch rod (3) is big or small corresponding with the groove (15) of grip part (2), in, the groove (15) of the size of bottom and switch (4) big or small corresponding, be conducive to like this switch rod (3) and move down; In the switch rod (3), a upper end level is arranged at the bottom, free, bouncing plate backward (14), the distance of the lower end horizontal level in the middle part of bouncing plate (14) upper end is upper with switch rod (3), 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, when switch rod (3) moves down on earth, bouncing plate (14) passes rear ejection of groove (15) of switch (4), be stuck in switch (4) below, be that syringe (9) can not be drawn back, reach 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 cuboid, part has the length switch groove identical with width, that run through up and down (15) of one and switch rod (3) middle and lower part in groove, and switch excellent (3) is passed; Switch (4) is in the inner top of switch groove (15), have one with the width such as switch groove (15), with the distance of switch (4) inner terminal within 5 millimeters, the downward platform within 5 millimeters, before not injecting, the place that switch rod (3) is laid bottom, play fixation, and be difficult for slippage; Switch groove (15) sidewall has an otch (16) downwards, is for after finishing in injection, and firmly upwards during the pressing cylinder, bouncing plate (14) switch (4) that can fracture prevents from again utilizing, and reaches disposable and purpose self-destruction.The part of switch (4) outside groove, have one with vertical, parallel with the outer wall locating hole of switch (4) (7), accurately locate when being conducive to install switch (4).The inwall of groove (15) part more than the switch opening, outer wall than part below the switch opening exceeds and is no more than 5 millimeters, or the inwall of groove (15) part below the switch opening, outer wall than part more than the switch opening exceeds and is no more than 5 millimeters, the anterior upper end, lateral wall of groove (15) is without outstanding, like this, and in process of production can disposal molding, increase output, reduce production costs.The both side edges of the groove of switch opening (15) lateral wall is furnished with the switch eaves (11) perpendicular to sidewall, is used for settling switch cover (10); Switch cover (10) is arranged in switch eaves (11), is not pressed into before use the syringe that causes for the protection of switch (4) and loses efficacy.

Shown in Fig. 1, Fig. 2 and Fig. 4-1, the groove of extension spring section (15) is towards the place ahead opening, also opening towards the rear, injector syringe is tetragonal body at the pushing assisted plate (1) of (5) extension spring section, the center of circle towards syringe (5), corresponding spring stack (8) are perpendicular to pushing assisted plate (1), and spring stack (8) is generally cylindrical, also can be other shapes, be conducive to like this installation of extension spring (9) and fixing.The outside of opening is connected with the plate of remaining silent (12) by impression hinge (13); remain silent plate (12) width with the height identical with opening; there is the outstanding of retreating-proof the remain silent both sides of plate (12); there is corresponding groove (15) both sides of groove (15) opening; like this; when opening the plate of remaining silent (12), be conducive to the installation of extension spring (9); after installation extension spring (9); the plate (12) of remaining silent closes; can protect extension spring (9) and pushing assisted plate (1), and can not deviate from.The lower end of the groove of extension spring section be fixed with pushing assisted plate (1) on the equidirectional spring stack of spring stack (8) (8), play the effect of the other end of fixedly extension spring (9), the also installation of more and more extension spring (9), the helical spring post (8) of pushing assisted plate links to each other by the spring stack (8) of extension spring (9) with groove (15) lower end, makes extension spring (9) provide power for syringe.

Grip part (22) and contact site (30) are transparent, use the medical plastic manufacturing, can see inner state, and all parts are aseptic being sealed in the aseptic outer package all, meets aseptic medical requirement.

The operating process of this syringe is: this syringe just is pressure state in packing; only need unpack; take off contact site (30); utilize the syringe needle aspiration medicinal liquid; after reaching required dosage, load onto contact site (30), syringe is placed sterilized; need on the position of syringe; take switch protection cover (11) away; Push switch (24), at this moment, the switch groove that switch rod (23) passes switch (24) moves downward; syringe is under the effect of extension spring (29); move downward fast, syringe needle enters rapidly intramuscular, takes out the pull bar of syringe; whether observe has blood back; slow injection liquid until finish, is extracted rapidly syringe again; cotton swab is pushed down pin hole; injection is finished, and at this moment, the switch of syringe rod (23) is blocked by bouncing plate (34); can not again be utilized, integral body is destroyed syringe more at last.Whole process, except because the drug-induced pain, omnidistance technical operation according to painless injection.

The present invention is applicable to each medical institutions, prevention station and family and carries 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 upper opening the 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 that spring stack is arranged; Syringe the pushing assisted plate of the switch-side switch rod by bouncing plate is arranged be arranged in the grip part sidewall and have the switch of locating hole, switch groove, otch and platform to link to each other; The sidewall of grip part below the sidewall above the switch opening and switch opening be not on same plane; Syringe links to each other by the extension spring spring stack corresponding with the groove lower end at the spring stack of the pushing assisted plate of extension spring side; The groove of the grip part of extension spring section is towards a side opening, and open outer side links to each other with the plate of remaining silent by the impression hinge; There is the switch eaves of vertical 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.