CN103495241A - Needleless injector with impacting function - Google Patents
Needleless injector with impacting function Download PDFInfo
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- CN103495241A CN103495241A CN201310476056.XA CN201310476056A CN103495241A CN 103495241 A CN103495241 A CN 103495241A CN 201310476056 A CN201310476056 A CN 201310476056A CN 103495241 A CN103495241 A CN 103495241A
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- push rod
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Abstract
A needleless injector with an impacting function comprises a medicine tube, a piston, a push rod, a front shell, a rod sleeve, a pressure spring, a rear shell, steel balls, a button, a lock barrel and a button spring. The rear end of the push rod is movably connected with the front end of the rod sleeve, a groove is formed in the front end of the rod sleeve, and the rear end of the push rod is clamped in the groove in the front end of the rod sleeve. A boss is arranged on the push rod in the groove, an impacting spring is arranged on the circumference of the push rod on the inner side of the boss in a sleeved mode, one end of the impacting spring abuts against the boss on the push rod, the other end of the impacting spring abuts against a boss at the inner end of the groove, and a gap is formed between the rear end of the push rod and the inner end of the groove of the rod sleeve. Due to the impacting spring arranged on the circumference of the push rod on the inner side of the boss in the sleeved mode, the gap is kept unchanged. The needleless injector with the impacting function has the advantages that after the rod sleeve in the injector impacts on the push rod, momenta of the rod sleeve are instantly transmitted to the push rod and medicine in the medicine tube, large impact force is provided for the medicine, instant large push force is achieved, and injection force of the medicine is improved.
Description
Technical field
The present invention relates to technical field of medical instruments, is a kind of needleless injector of clashing into function that has.
Background technology
Needleless injector be a kind of by external power supply to liquid medicine pressurization, and make liquid drug with the form of high-voltage high-speed by very thin micropore, transdermal, enter into a kind of equipment in body.Liquid drug can directly not penetrate human or animal's skin by syringe needle and enter in body.
Along with the development of pharmaceuticals industry, produced many biological preparation quasi drugss, the characteristics of these medicines are that injection volume is little, often injection.There is the syringe of pin to bring the fear of pin and the pain of acupuncture to user.Needleless injector can have been avoided these problems effectively.Needleless injector can also make injectable drug more be tending towards disperseing simultaneously, is conducive to the absorption of medicine and reduces hypodermic infringement, avoids forming scleroma.
The injection process of needleless injector is that power source directly acts on liquid drug, make liquid drug from resting state fast to certain speed, can be expelled to the purpose in body by transdermal to reach.In use the thrust that needs is maximum the moment of liquid drug transdermal and acceleration, once accelerate and transdermal after just do not need very large thrust.Thrust after transdermal needs decay rapidly to reach the purpose that reduces injection depth.Present needleless injector is to act directly on liquid drug by power source, can't meet the needs of above-mentioned injection process.
Summary of the invention
The purpose of this invention is to provide a kind of needleless injector of clashing into function that has, after making loop bar in syringe clash into push rod, momentum moment of bar cover passes to the medicine in push rod and pencil, to medicine, provides very large impact force, reach high thrust of moment, improved the jet power of medicine.
For achieving the above object, the present invention takes following technical scheme:
A kind of needleless injector with shock function, it includes pencil, piston, push rod, fore shell, , the bar cover, compression spring, back cover, steel ball, button, lock, button spring, it is characterized in that: the front end of described putting back-end and bar cover is to be flexibly connected, front end at the bar cover is provided with groove, the rear end of this push rod is stuck in the groove of bar cover front end, be provided with boss on push rod in groove, on the push rod circumference of boss inboard, cover has the shock spring, this shock spring one end withstands on the boss on push rod, the other end withstands on the boss of groove the inner, be formed with a gap between groove the inner of the rear end of push rod and bar cover.
The shock spring that on the push rod circumference of boss inboard there is cover, remain unchanged described gap.
The invention has the beneficial effects as follows: after the loop bar in syringe clashes into push rod, momentum moment of bar cover passes to the medicine in push rod and pencil, to medicine, provides very large impact force, has reached high thrust of moment, has improved the jet power of medicine.
The accompanying drawing explanation
Fig. 1 is the structural representation that the present invention prepares to inhale medicinal liquid.
Fig. 2 is the structural representation that the present invention is filled medicinal liquid.
Fig. 3 is that bar cover of the present invention clashes into putting back-end, makes pencil inner liquid medicine earth pressure release momentary status structural representation.
Drawing reference numeral: 1, pencil; 2, piston; 3, push rod; 31, boss; 4, fore shell; 5, clash into spring; 6, bar cover; 61, recessed grain; 62, boss; 63, gap; 64, the recessed grain of steel ball; 7, compression spring; 8, back cover; 9, steel ball; 10, button; 101, annular groove; 11, lock; 12, button spring.The specific embodiment
Shown in Fig. 1, Fig. 2, Fig. 3: a kind of needleless injector with shock function, it includes pencil 1, piston 2, push rod 3, fore shell 4, bar cover 6, compression spring 7, back cover 8, steel ball 9, button 10, lock 11, button spring 12; Pencil 1 is arranged on the front end of syringe, the rear end of pencil 1 is threaded with the front end of fore shell 4, the forward part of back cover 8 enters in fore shell 4, back cover 8 is threaded mutually with fore shell 4, be provided with push rod 3 in syringe, the front end of this push rod 3 is connected with piston 2, and this piston 2 is arranged in pencil 1, the inner wall sealing sliding-contact of this piston 2 and pencil 1; On the shaft of push rod 3, cover has compression spring 7, and 7 pairs of push rods of this compression spring form thrust; The rear end of back cover 8 is provided with button 10, the front end of this button 10 enters in the rear end of back cover 8, the rear end of this button 10 is arranged on the outside, rear end of back cover 8, be provided with lock 11 in button 10, the rear end of this pinning 11 is provided with button spring 12, the front end of this pinning 11 withstands on the rear end of bar cover 6, is provided with steel ball recessed poor 64 on the back end outer circumference of push rod 3, in button 10 front ends, is provided with annular groove 101.
The front end of described push rod 3 rear ends and bar cover 6 is to be flexibly connected, front end at the bar cover is provided with groove 61, the rear end of this push rod 3 is stuck in the groove 61 that bar overlaps 6 front ends, be provided with boss 31 on push rod in groove 61, on push rod 3 circumference of these boss 31 inboards, cover has the spring 5 of shock, this shock spring one end withstands on the boss 31 on push rod, and the other end withstands on the boss 62 of groove 61 the inners, between groove 61 the inners of the rear end of push rod 3 and bar cover 6, is formed with a gap 63.
The shock spring 5 that on push rod 3 circumference of boss 31 inboards there is cover, remain unchanged described gap 63.
The concrete step of using is:
1, prepare to inhale medicine
First relatively rotate back cover 8 and fore shell 4, make back cover 8 relative with fore shell 4 close, the front end of push rod 3 is moved in pencil 1 Inner Front End, after groove that bar overlaps 6 rearward end moved steel ball 9, by the elastic force of button spring 12, the inclined-plane by button 10 inner loop troughs 101 enters in the steel ball groove 64 of bar cover 6 steel ball 9 to button 10 in annular groove of button 10 inside.Button 10 outwards moves under the effect of button spring 12.After the step of button 10 outsides and back cover 8, after end in contact, button 10 no longer moves.Now the platform of button inboard just in time withstand on steel ball 9 above, thereby locked bar cover 6.Now state as shown in Figure 1.
2, pencil is inhaled medicine
The head of pencil 1 is connected with medicine, relatively counter-rotates back cover 8, and back cover 8 is by steel ball 9 driven rods covers 6, bar cover 6 drive push rods 3 and piston 2 to relative fore shell 4 gradually away from, in the interior generation negative pressure of pencil 1, medicine is drawn in pencil 1, complete the medicine process of inhaling.Now state as shown in Figure 2.
3, clash into injection
Because the elastic force of compression spring 7 acts on bar cover 6, the inclined-plane, rear end that bar overlaps the steel ball recessed poor 64 of 6 rearward end contacts with steel ball 9, and steel ball 9 is subject to an outside extruding force.Press the button 10, annular groove 101 of button 10 inside moves to steel ball 9 tops, and steel ball will move in annular groove 101 of button 10.Bar cover 6 loses the constraint of steel ball 9 to it, under the effect of compression spring 7, starts fast moving.Because translational speed is very fast, in the situation that the medicine of pencil 1 inside and push rod 3 also do not have to move, clash into after bar overlaps 6 compression impact springs 5 and push rod 3 rear ends, after shock, momentum moment of bar cover 6 passes to the medicine in push rod 3 and pencil 1, provide very large impact force to medicine, reached the purpose of high thrust of moment.Now state as shown in Figure 3.
The above is preferred embodiment of the present invention and the know-why used thereof; for a person skilled in the art; in the situation that do not deviate from the spirit and scope of the present invention; the apparent changes such as any equivalent transformation based on the technical solution of the present invention basis, simple replacement, within all belonging to protection domain of the present invention.
Claims (2)
1. one kind has the needleless injector of clashing into function, it includes pencil (1), piston (2), push rod (3), fore shell (4), bar cover (6), compression spring (7), back cover (8), steel ball (9), button (10), lock (11), button spring (12), it is characterized in that: the front end of described push rod (3) rear end and bar cover (6) is to be flexibly connected, front end at bar cover (6) is provided with groove (61), the rear end of this push rod (3) is stuck in the groove (61) of bar cover (6) front end, (be provided with boss (31) on the push rod in 61 (3) at groove, on push rod (3) circumference of this boss (31) inboard, cover has shock spring (5), these shock spring (5) one ends withstand on the boss (31) on push rod, the other end withstands on the inner boss (62) of groove (61), be formed with a gap (63) between groove the inner of the rear end of push rod and bar cover.
2. the needleless injector with shock function according to claim 1, is characterized in that: overlap the shock spring (5) had on the push rod circumference of boss (31) inboard, described gap (63) is remained unchanged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310476056.XA CN103495241A (en) | 2013-10-12 | 2013-10-12 | Needleless injector with impacting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310476056.XA CN103495241A (en) | 2013-10-12 | 2013-10-12 | Needleless injector with impacting function |
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| Publication Number | Publication Date |
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| CN103495241A true CN103495241A (en) | 2014-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310476056.XA Pending CN103495241A (en) | 2013-10-12 | 2013-10-12 | Needleless injector with impacting function |
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| CN (1) | CN103495241A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104147666A (en) * | 2014-08-27 | 2014-11-19 | 北京快舒尔医疗技术有限公司 | Needleless injector with power-driven function |
| CN104399156A (en) * | 2014-12-17 | 2015-03-11 | 山东中保康医疗器具有限公司 | Mechanical and rotating medicine taking device |
| WO2016029758A1 (en) * | 2014-08-27 | 2016-03-03 | 北京快舒尔医疗技术有限公司 | Electrically powered needleless injector |
| CN109621096A (en) * | 2016-11-05 | 2019-04-16 | 王才丰 | A kind of medical needleless injector |
| CN111437468A (en) * | 2020-05-11 | 2020-07-24 | 易舒康(山东)生物科技有限公司 | Needleless injector |
| CN111544706A (en) * | 2020-05-11 | 2020-08-18 | 易舒康(山东)生物科技有限公司 | Accurate portable needleless injector of dosage |
| CN112089928A (en) * | 2020-09-02 | 2020-12-18 | 江苏丞宇米特医疗科技有限公司 | One-way drive mechanism for needleless syringes |
| CN112755333A (en) * | 2021-01-07 | 2021-05-07 | 陕西安信医学技术开发有限公司 | Needleless atomizing injector |
| CN114917431A (en) * | 2022-05-17 | 2022-08-19 | 北京快舒尔医疗技术有限公司 | Syringe body and syringe having the same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2717597A (en) * | 1952-12-04 | 1955-09-13 | Jr George N Hein | Injection apparatus |
| JP2003339864A (en) * | 2002-05-31 | 2003-12-02 | Shimadzu Corp | Pressure syringe with short needle |
| CN101428159A (en) * | 2007-11-09 | 2009-05-13 | 沈阳航天新光低温容器制造有限责任公司 | Injector without needle for animals |
| CN201524322U (en) * | 2009-09-28 | 2010-07-14 | 北京快舒尔医疗技术有限公司 | Needle-free injector with connected medicine pipe inner rod and push rod |
| CN203539807U (en) * | 2013-10-12 | 2014-04-16 | 北京快舒尔医疗技术有限公司 | Needleless injector with impacting function |
-
2013
- 2013-10-12 CN CN201310476056.XA patent/CN103495241A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2717597A (en) * | 1952-12-04 | 1955-09-13 | Jr George N Hein | Injection apparatus |
| JP2003339864A (en) * | 2002-05-31 | 2003-12-02 | Shimadzu Corp | Pressure syringe with short needle |
| CN101428159A (en) * | 2007-11-09 | 2009-05-13 | 沈阳航天新光低温容器制造有限责任公司 | Injector without needle for animals |
| CN201524322U (en) * | 2009-09-28 | 2010-07-14 | 北京快舒尔医疗技术有限公司 | Needle-free injector with connected medicine pipe inner rod and push rod |
| CN203539807U (en) * | 2013-10-12 | 2014-04-16 | 北京快舒尔医疗技术有限公司 | Needleless injector with impacting function |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11116909B2 (en) | 2014-08-27 | 2021-09-14 | Beijing Qs Medical Technology Co., Ltd. | Electrically powered needleless injector |
| WO2016029758A1 (en) * | 2014-08-27 | 2016-03-03 | 北京快舒尔医疗技术有限公司 | Electrically powered needleless injector |
| CN104147666B (en) * | 2014-08-27 | 2017-05-31 | 北京快舒尔医疗技术有限公司 | A kind of needleless injector with electric functions |
| JP2017529203A (en) * | 2014-08-27 | 2017-10-05 | ベイジン キューエス メディカル テクノロジー カンパニー リミテッド | Needleless syringe with electric function |
| CN104147666A (en) * | 2014-08-27 | 2014-11-19 | 北京快舒尔医疗技术有限公司 | Needleless injector with power-driven function |
| CN104399156B (en) * | 2014-12-17 | 2017-04-05 | 山东中保康医疗器具有限公司 | Mechanical type rotating drug taking device |
| CN104399156A (en) * | 2014-12-17 | 2015-03-11 | 山东中保康医疗器具有限公司 | Mechanical and rotating medicine taking device |
| CN109621096B (en) * | 2016-11-05 | 2020-05-12 | 胡晓华 | Medical needleless injector |
| CN109621096A (en) * | 2016-11-05 | 2019-04-16 | 王才丰 | A kind of medical needleless injector |
| CN111544706A (en) * | 2020-05-11 | 2020-08-18 | 易舒康(山东)生物科技有限公司 | Accurate portable needleless injector of dosage |
| CN111437468A (en) * | 2020-05-11 | 2020-07-24 | 易舒康(山东)生物科技有限公司 | Needleless injector |
| CN111544706B (en) * | 2020-05-11 | 2022-03-18 | 易舒康(山东)生物科技有限公司 | Accurate portable needleless injector of dosage |
| CN112089928A (en) * | 2020-09-02 | 2020-12-18 | 江苏丞宇米特医疗科技有限公司 | One-way drive mechanism for needleless syringes |
| CN112755333A (en) * | 2021-01-07 | 2021-05-07 | 陕西安信医学技术开发有限公司 | Needleless atomizing injector |
| CN112755333B (en) * | 2021-01-07 | 2022-05-31 | 陕西安信医学技术开发有限公司 | Needleless atomizing injector |
| CN114917431A (en) * | 2022-05-17 | 2022-08-19 | 北京快舒尔医疗技术有限公司 | Syringe body and syringe having the same |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140108 |