CN103977483A - Electromagnetic energy storage type needleless injector - Google Patents
Electromagnetic energy storage type needleless injector Download PDFInfo
- Publication number
- CN103977483A CN103977483A CN201410203398.9A CN201410203398A CN103977483A CN 103977483 A CN103977483 A CN 103977483A CN 201410203398 A CN201410203398 A CN 201410203398A CN 103977483 A CN103977483 A CN 103977483A
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- CN
- China
- Prior art keywords
- cylinder barrel
- impact armature
- needleless injector
- impact
- armature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004146 energy storage Methods 0.000 title abstract 4
- 238000002347 injection Methods 0.000 claims abstract description 22
- 239000007924 injection Substances 0.000 claims abstract description 22
- 238000003860 storage Methods 0.000 claims description 15
- 239000003708 ampul Substances 0.000 claims description 11
- 230000000712 assembly Effects 0.000 claims description 11
- 238000000429 assembly Methods 0.000 claims description 11
- 230000008520 organization Effects 0.000 claims description 7
- 230000003068 static effect Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims description 2
- 230000001133 acceleration Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 abstract 1
- 230000001960 triggered effect Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 7
- 238000009825 accumulation Methods 0.000 description 5
- 239000003814 drug Substances 0.000 description 4
- 230000003116 impacting effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000005672 electromagnetic field Effects 0.000 description 3
- 238000009527 percussion Methods 0.000 description 3
- 241001397306 Proales Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 208000002193 Pain Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 208000009146 rhinoscleroma Diseases 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 208000037816 tissue injury Diseases 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses an electromagnetic energy storage type needleless injector, which comprises an electric control device and an impact injection device, wherein the impact injection device comprises a cylinder barrel with an inner cavity, a front end cover fixedly arranged at the front end of the cylinder barrel, an impact armature movably arranged in the cylinder barrel along the front and back direction of the cylinder barrel, and an electromagnetic coil arranged in the cylinder barrel and used for driving the impact armature to move front and back when being electrified. The impact armature is subjected to energy storage of electricity, after the energy storage is carried out to a certain degree, the impact armature is instantly triggered, the initial acceleration is large, the idle stroke is greatly shortened, and the size of the needleless injector is reduced, and meanwhile, direct current is adopted in the needleless injector, so that safety voltage can be used, and the use is more convenient and safer. The needleless injector is simple in structure, small in size, light in weight and low in manufacturing cost, and can be widely popularized and applied.
Description
Technical field
the present invention relates to a kind of electromagnetic storage formula needleless injector.
Background technology
needleless injection technology is not by syringe needle when carrying out drug injection, liquid medicine with ultra-fine, at a high speed, the mode of straight line ejection high-pressure spray directly enters body tissue, solved traditional injection because syringe needle thrusts the series of problems that body brings, as: pain, hemorrhage, infection, tissue injury, mental pressure etc.; Meanwhile, through the medicine of Needleless injection, in more disperse of in-house distribution, be conducive to the absorption of medicine, inject for a long time skin and be difficult for scleroma.Therefore, Needleless injection technology has broad application prospects, and is particularly useful for child vaccine-inoculating and diabetics.
in prior art, what needleless injector adopted mostly is the structure of electromagnetic drive type, it mainly contains two kinds, a kind of is that thrust and the kinetic energy that utilizes electromagnet core to produce drives, if the patent No. is that ZL 200910153212.2, patent name are " the power-actuated continuous needleless injection system of electromagnetism " disclosed structure of Chinese patent literature, or the thrust and the kinetic energy that utilize permanent magnet power-assisted and electric magnet to produce drive, if the patent No. is the disclosed structure of Chinese patent literature that ZL201220354008.4, patent name are " a kind of needleless injector "; Another kind of be to drive after utilizing the stroke based on area theorem that the moment microdisplacement of giant magnetostrictive material carries out to amplify, if the patent No. is that ZL200620139203.X, patent name are the structure in " needleless injector that magnetostriction drives " Chinese patent literature.
in above-mentioned two kinds of type of drive, front a kind of type of drive is because initial acceleration is less, therefore need one section of longer idle stroke, then a kind of type of drive is because the percussion time is shorter, even in the rank of millisecond, so realize the required acting of injection process, certainly will cause the power of driving device very large, it is huge that the volume of syringe is also tending towards, for example the Needleless injection driving device based on giant magnetostrictive material only giant magnetostrictive material just approximately need 20kg, and giant magnetostrictive material is expensive, therefore cause needleless injector cost high, product cannot be promoted the use of.
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Summary of the invention
the object of this invention is to provide a kind of simple in structure and volume is little, lightweight electromagnetic storage formula needleless injector.
for achieving the above object, the technical solution used in the present invention is: a kind of electromagnetic storage formula needleless injector, comprise electrical control gear and impact injection device, described impact injection device comprises the cylinder barrel with inner chamber, be fixedly arranged on the drive end bearing bracket of described cylinder barrel front end, can be located at movably the impact armature in described cylinder barrel along the fore-and-aft direction of described cylinder barrel, be installed in the solenoid for driving described impact armature to move forward and backward in described cylinder barrel when switching on, described drive end bearing bracket is provided with needleless ampoule assemblies, described needleless ampoule assemblies at least comprises the piston rod that can move along fore-and-aft direction, described impact armature has energy accumulating state and impact conditions, when described impact armature is during in energy accumulating state, described impact armature is static, described impact armature and described piston rod depart from mutually, when described impact armature is during in impact conditions, described impact armature impacts forward and drives described piston rod to move forward, and is also provided with for switching the controlling organization of described impact armature duty on described cylinder barrel.
preferably, described controlling organization comprises the ratchet of being located at rotationally on described cylinder barrel, and one end of described ratchet is kept out rotationally on the front end of described impact armature or with described impact armature and is separated.
further preferably, between described ratchet and described cylinder barrel, be also provided with for driving described ratchet rotation to make it keep out the elastic component at described impact armature front end.
as a kind of concrete embodiment, described elastic component is the spring of being located at the described ratchet other end.
as a kind of concrete embodiment, described ratchet is L-type.
further preferably, the front end of described cylinder barrel offers the through hole with its intracavity inter-connection, and the end of described ratchet plugs in described through hole rotationally.
preferably, described impact armature is cylindrical shape.
further preferably, described impact armature, described piston rod coaxial inner conductor arrange.
preferably, setting is sealed by rear end cap in the rear end of described cylinder barrel, and the front end of described cylinder barrel has opening, and described impact armature is positioned at the cavity volume of described rear end cap, described drive end bearing bracket and formation that described solenoid surrounds.
preferably, when described impact armature is during in energy accumulating state, between the front end of described impact armature and the rear end of described piston rod, there is spacing.
utilization due to technique scheme, the present invention compared with prior art has following advantages: electromagnetic storage formula needleless injector of the present invention, wherein by impact armature, carry out electric accumulation of energy, make moment percussion again after its accumulation of energy to a certain extent, initial acceleration is large, shortened significantly idle stroke, reduce the volume of needleless injector, meanwhile, in this needleless injector, adopted unidirectional current, can use safe voltage, use more convenient safety.This needleless injector is simple in structure, and volume is little, lightweight, and low cost of manufacture can be applicable widely.
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Accompanying drawing explanation
accompanying drawing 1 is the internal structure schematic diagram of needleless injector of the present invention under energy accumulating state;
accompanying drawing 2 is the internal structure schematic diagram of needleless injector of the present invention under impact conditions.
wherein: 1, cylinder barrel; 11, rear end cap; 2, drive end bearing bracket; 3, impact armature; 4, solenoid; 5, needleless ampoule assemblies; 51, piston rod; 52, medicinal liquid cavity; 6, controlling organization; 61, ratchet; 62, spring; 63, rotating shaft; 7, through hole.
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The specific embodiment
below in conjunction with accompanying drawing and specific embodiment, technical scheme of the present invention is further elaborated.
below in the description about direction, be all that the direction that operator observes during according to injection operation defines, wherein dispensing end is front, otherwise after being.
needleless injector comprises electrical control gear (not shown) and impacts injection device, referring to shown in Fig. 1, Fig. 2 being the impact injection device part of this needleless injector.Referring to Fig. 1, shown in Fig. 2, this impact injection device comprises the cylinder barrel 1 with inner chamber, be fixedly arranged on the drive end bearing bracket 2 of cylinder barrel 1 leading section, can be located at movably the impact armature 3 in cylinder barrel 1 along the fore-and-aft direction of cylinder barrel 1, be fixedly arranged in cylinder barrel 1 and impact for driving the solenoid 4 that armature 3 moves forward and backward when switching on, cylinder barrel 1 is the hollow form structure of front opening back-end closure, the rear portion of cylinder barrel 1 is sealed by rear end cap 11, impact armature 3 and be positioned at rear end cap 11, drive end bearing bracket 2 and solenoid 4 surround in the cavity volume forming, when solenoid 4 energising, can produce corresponding electromagnetic field and apply impact armature 3 electromagnetism drives, thereby drive it in the inner chamber of cylinder barrel 1, to move forward and backward.
drive end bearing bracket 2 is provided with needleless ampoule assemblies 5, and this needleless ampoule assemblies 5 is detachable connection with drive end bearing bracket 2, can conveniently after a shot completes, be disassembled replacement like this.This needleless ampoule assemblies 5 comprise there is the syringe of medicinal liquid cavity 52, the piston rod 51 that can move along fore-and-aft direction, the rear portion of piston rod 51 has at least part to be inserted in the inner chamber of cylinder barrel 1 by the opening of cylinder barrel 1 front end, when impacting armature 3, impact forward while touching piston rod 51, piston rod 51 moves forward and pushes medicinal liquid and realize injection.
impacting armature 3 when making to inject can come impulsion cylinder 51 to complete injection with larger impulsive force, impact armature 3 and there is energy accumulating state and impact conditions, under energy accumulating state, impact armature 3 remains static and impacts armature 3 and is separated with piston rod 51, the electromagnetic field that solenoid 4 produces makes it obtain electromagnetism drive, and constantly accumulates the proal trend of accelerating that produces; Under impact conditions, impact armature 3 moves forward and impulsion cylinder 51 moves forward.
when needleless ampoule assemblies 5 is arranged on drive end bearing bracket 2, its piston rod 51 rear portions are inserted in the inner chamber of cylinder barrel 1, and suitable distance should be left with the front end that impacts armature 3 in piston rod 51 rear ends, after impacting armature 3 accumulation of energys, going to like this impact conditions piston rod 51 impacts while injecting, 3 impacts of impact armature have reached higher speed while extremely contacting with piston rod 51, just can be with velocity shock faster while making piston rod 51 initial, avoid injecting medicinal liquid when initial and flow out and can not enter in patient body.
on cylinder barrel 1, be also provided with the controlling organization 6 for switching shock armature 3 duties.Referring to Fig. 1, shown in Fig. 2, in the present embodiment, this controlling organization 6 comprises by rotating shaft 63 is located at the ratchet 61 on cylinder barrel 1 rotationally, this ratchet 61 adopts the structure of L-type, on cylinder barrel 1, offer the through hole 7 with its intracavity inter-connection, the ratchet end of ratchet 61 front portions inserts rotationally in through hole 7 and conflicts at the front end that impacts armature 3, between the rear end of ratchet 61 and cylinder barrel 1, be provided with spring 62, spring 62 should have good rigidity, so under normal conditions, at spring 62, produce under the effect of the elastic force that outwards promotes ratchet 61, the ratchet end of ratchet 61 front portions is kept out and is being impacted on the front end of armature 3, make to impact armature 3 in energy accumulating state, while needing to inject after accumulation of energy finishes, by pressing ratchet 61 rear ends, the elastic force that overcomes spring 62 rotates ratchet 61 and departs from impact armature 3, 3, impact armature impacts forward and piston rod 51 moves forward and realizes and having injected.
this needleless injector in use, under original state, the ratchet end of ratchet 61 is kept out and is being impacted on armature 3, the needleless ampoule assemblies 5 that medicinal liquid is housed is mounted on drive end bearing bracket 2, the rear portion of piston rod 51 is inserted in the inner chamber of cylinder barrel 1 and is positioned at the place ahead of impacting armature, and the rear end of piston rod 51 maintains a certain distance with the front end that impacts armature 3.
first by electrical control gear, to solenoid 4, pass into forward current, the electromagnetic field impact armature 3 that produces forward current applies electromagnetism drive forward, electromagnetism drive makes to impact armature 3 the proal trend of acceleration, but the effect due to ratchet 61, impact armature 3 and remain static, as shown in Figure 1.When electric current is increasing, the potential energy that impact armature 3 is accumulated is more and more, now press rear end mounting spring 62 positions of ratchet 61, ratchet 61 rotates and disengaging impact armature 3, impact armature 3 and just with very fast acceleration, clash into the piston rod 51 of needleless ampoule assemblies 5, realize the injection of medicinal liquid, shown in Figure 2.After having injected, by electrical control gear, to solenoid 4, pass into reverse current, the electromagnetism drive that reverse current produces drives impact armature 3 to move backward and realizes reset.
in this needleless injector owing to adopting the technology of electric accumulation of energy moment percussion, initial acceleration can be very large, can greatly shorten idle stroke, the volume of the impact injection device part of needleless injector is significantly reduced, in this needleless injector, adopt unidirectional current simultaneously, can use safe voltage, use more convenient safety.To sum up, this needleless injector is simple in structure, and volume is little, lightweight, and low cost of manufacture can be applicable widely.
above-described embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that spirit is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (10)
1. an electromagnetic storage formula needleless injector, comprise electrical control gear and impact injection device, it is characterized in that: described impact injection device comprises the cylinder barrel with inner chamber, be fixedly arranged on the drive end bearing bracket of described cylinder barrel front end, can be located at movably the impact armature in described cylinder barrel along the fore-and-aft direction of described cylinder barrel, be installed in the solenoid for driving described impact armature to move forward and backward in described cylinder barrel when switching on, described drive end bearing bracket is provided with needleless ampoule assemblies, described needleless ampoule assemblies at least comprises the piston rod that can move along fore-and-aft direction, described impact armature has energy accumulating state and impact conditions, when described impact armature is during in energy accumulating state, described impact armature is static, described impact armature and described piston rod depart from mutually, when described impact armature is during in impact conditions, described impact armature impacts forward and drives described piston rod to move forward, and is also provided with for switching the controlling organization of described impact armature duty on described cylinder barrel.
2. a kind of electromagnetic storage formula needleless injector according to claim 1, it is characterized in that: described controlling organization comprises the ratchet of being located at rotationally on described cylinder barrel, one end of described ratchet is kept out rotationally on the front end of described impact armature or with described impact armature and is separated.
3. a kind of electromagnetic storage formula needleless injector according to claim 2, is characterized in that: between described ratchet and described cylinder barrel, be also provided with for driving described ratchet rotation to make it keep out the elastic component at described impact armature front end.
4. a kind of electromagnetic storage formula needleless injector according to claim 3, is characterized in that: described elastic component is the spring of being located at the described ratchet other end.
5. according to a kind of electromagnetic storage formula needleless injector described in claim 2 or 3 or 4, it is characterized in that: described ratchet is L-type.
6. a kind of electromagnetic storage formula needleless injector according to claim 2, is characterized in that: the front end of described cylinder barrel offers the through hole with its intracavity inter-connection, and the end of described ratchet plugs in described through hole rotationally.
7. a kind of electromagnetic storage formula needleless injector according to claim 1, is characterized in that: described impact armature is cylindrical shape.
8. according to a kind of electromagnetic storage formula needleless injector described in claim 1 or 7, it is characterized in that: described impact armature, described piston rod coaxial inner conductor arrange.
9. a kind of electromagnetic storage formula needleless injector according to claim 1, it is characterized in that: setting is sealed by rear end cap in the rear end of described cylinder barrel, the front end of described cylinder barrel has opening, and described impact armature is positioned at the cavity volume of described rear end cap, described drive end bearing bracket and formation that described solenoid surrounds.
10. a kind of electromagnetic storage formula needleless injector according to claim 1, is characterized in that: when described impact armature is during in energy accumulating state, between the front end of described impact armature and the rear end of described piston rod, have spacing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410203398.9A CN103977483B (en) | 2014-05-14 | 2014-05-14 | A kind of electromagnetic storage formula needleless injector |
| PCT/CN2015/078564 WO2015172681A1 (en) | 2014-05-14 | 2015-05-08 | Electromagnetic accumulating needleless syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410203398.9A CN103977483B (en) | 2014-05-14 | 2014-05-14 | A kind of electromagnetic storage formula needleless injector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103977483A true CN103977483A (en) | 2014-08-13 |
| CN103977483B CN103977483B (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410203398.9A Expired - Fee Related CN103977483B (en) | 2014-05-14 | 2014-05-14 | A kind of electromagnetic storage formula needleless injector |
Country Status (1)
| Country | Link |
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| CN (1) | CN103977483B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015172681A1 (en) * | 2014-05-14 | 2015-11-19 | 苏州大学张家港工业技术研究院 | Electromagnetic accumulating needleless syringe |
| WO2015172683A1 (en) * | 2014-05-14 | 2015-11-19 | 苏州大学张家港工业技术研究院 | Manually operated energy storing needleless injector |
| CN111481774A (en) * | 2019-01-25 | 2020-08-04 | 凯联医疗科技(上海)有限公司 | Trace medicine needleless injector |
| KR20220108337A (en) * | 2021-01-27 | 2022-08-03 | 주식회사 메디젯 | Needleless drug injection apparatus of induced current type |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050085767A1 (en) * | 2002-02-12 | 2005-04-21 | Karim Menassa | Needleless injector |
| CN1951512A (en) * | 2006-09-19 | 2007-04-25 | 武汉半边天医疗技术发展有限公司 | Needle-free injection device |
| CN101455868A (en) * | 2008-11-21 | 2009-06-17 | 王玉强 | Electromagnetic needleless injector |
| CN201375732Y (en) * | 2009-04-03 | 2010-01-06 | 王军喜 | Electromagnetic type automatic needleless injector |
| CN102397604A (en) * | 2010-09-08 | 2012-04-04 | 钟康明 | Cylinder valve separated type magnetic damping pneumatic needle-head-free syringe |
| CN102652848A (en) * | 2010-08-30 | 2012-09-05 | 北京快舒尔医疗技术有限公司 | Electromagnetic continuous needleless injector with dose and injection depth adjusting faction |
| CN202654492U (en) * | 2012-07-20 | 2013-01-09 | 苏州大学 | Needleless injector |
| CN203898858U (en) * | 2014-05-14 | 2014-10-29 | 苏州大学张家港工业技术研究院 | Electromagnetic energy-storage-type needleless injector |
-
2014
- 2014-05-14 CN CN201410203398.9A patent/CN103977483B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050085767A1 (en) * | 2002-02-12 | 2005-04-21 | Karim Menassa | Needleless injector |
| CN1951512A (en) * | 2006-09-19 | 2007-04-25 | 武汉半边天医疗技术发展有限公司 | Needle-free injection device |
| CN101455868A (en) * | 2008-11-21 | 2009-06-17 | 王玉强 | Electromagnetic needleless injector |
| CN201375732Y (en) * | 2009-04-03 | 2010-01-06 | 王军喜 | Electromagnetic type automatic needleless injector |
| CN102652848A (en) * | 2010-08-30 | 2012-09-05 | 北京快舒尔医疗技术有限公司 | Electromagnetic continuous needleless injector with dose and injection depth adjusting faction |
| CN102397604A (en) * | 2010-09-08 | 2012-04-04 | 钟康明 | Cylinder valve separated type magnetic damping pneumatic needle-head-free syringe |
| CN202654492U (en) * | 2012-07-20 | 2013-01-09 | 苏州大学 | Needleless injector |
| CN203898858U (en) * | 2014-05-14 | 2014-10-29 | 苏州大学张家港工业技术研究院 | Electromagnetic energy-storage-type needleless injector |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015172681A1 (en) * | 2014-05-14 | 2015-11-19 | 苏州大学张家港工业技术研究院 | Electromagnetic accumulating needleless syringe |
| WO2015172683A1 (en) * | 2014-05-14 | 2015-11-19 | 苏州大学张家港工业技术研究院 | Manually operated energy storing needleless injector |
| CN111481774A (en) * | 2019-01-25 | 2020-08-04 | 凯联医疗科技(上海)有限公司 | Trace medicine needleless injector |
| CN111481774B (en) * | 2019-01-25 | 2023-06-09 | 凯联医疗科技(上海)有限公司 | Needleless syringe for trace medicine |
| KR20220108337A (en) * | 2021-01-27 | 2022-08-03 | 주식회사 메디젯 | Needleless drug injection apparatus of induced current type |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103977483B (en) | 2016-04-13 |
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Effective date of registration: 20170807 Address after: Suzhou City, Jiangsu province 215137 Xiangcheng District Ji Road No. 8 Patentee after: SOOCHOW University Address before: Zhangjiagang mayor Jingyang Road Suzhou City, Jiangsu province 215600 No. 10 Patentee before: Zhangjiagang Institute of Industrial Technologies Soochow University |
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