CN203898859U - Electromagnetic energy storage type needleless injector - Google Patents
Electromagnetic energy storage type needleless injector Download PDFInfo
- Publication number
- CN203898859U CN203898859U CN201420246896.7U CN201420246896U CN203898859U CN 203898859 U CN203898859 U CN 203898859U CN 201420246896 U CN201420246896 U CN 201420246896U CN 203898859 U CN203898859 U CN 203898859U
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- CN
- China
- Prior art keywords
- impulse member
- cylinder barrel
- needleless injector
- ratchet
- piston rod
- 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.)
- Expired - Lifetime
Links
- 238000004146 energy storage Methods 0.000 title abstract 4
- 238000002347 injection Methods 0.000 claims description 22
- 239000007924 injection Substances 0.000 claims description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 21
- 238000003860 storage Methods 0.000 claims description 14
- 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
- 239000004020 conductor Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000009825 accumulation Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 230000001133 acceleration Effects 0.000 description 4
- 239000003814 drug Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 241001397306 Proales Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009527 percussion Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 208000002193 Pain Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 238000007747 plating Methods 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
- 239000007921 spray Substances 0.000 description 1
- 208000037816 tissue injury Diseases 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses an electromagnetic energy storage type needleless injector which comprises an electric control device and an impact injecting device. The impact injecting device comprises a cylinder tube with an inner cavity, a front end cap which is fixed at the front end of the cylinder tube, an impact part which is movably arranged in the cylinder tube along the front-back direction of the cylinder tube and an electromagnetic drive device which is fixed in the cylinder tube and used for driving the impact part to move forwards and backwards when power is on. The electromagnetic energy storage type needleless injector has the advantages that electric energy storage is performed on the impact part, the impact part impacts instantly when energy is stored to a certain degree, high initial speed is achieved, idle stroke is shortened greatly, and size of the needleless injector is reduced; the electrometric drive device can use direct currents, safe voltage is used, and use convenience and safety are achieved; the needleless injector is simple in structure, small in size, lightweight, low in manufacturing cost and capable of being widely popularized and used.
Description
Technical field
this utility model relates to a kind of electromagnetic storage formula needleless injector.
Background technology
needleless injection technology is not by syringe needle in the time 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, solve traditional injection because syringe needle thrusts the series of problems that body brings, as: pain, hemorrhage, infection, tissue injury, mental pressure etc.; Meanwhile, in more disperse of in-house distribution, be conducive to the absorption of medicine through the medicine of Needleless injection, 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.
Summary of the invention
the purpose of this utility model is to provide a kind of simple in structure and volume is little, lightweight electromagnetic type accumulation of energy needleless injector.
for achieving the above object, the technical solution adopted in the utility model 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 impulse member in described cylinder barrel along fore-and-aft direction, be fixedly arranged on the electromagnetic actuator device for driving described impulse member to move forward and backward in described cylinder barrel, described electromagnetic actuator device at least comprises the drive block that changeable magnetic changes, the rear end of described impulse member has fixing magnetic pole, the rear end of described impulse member and described drive block magnetic are joined, and described impulse member and described cylinder barrel magnetic insulation ground arrange, 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 impulse member in described cylinder barrel between described drive block and described piston rod, described impulse member has energy accumulating state and impact conditions, when described impulse member is during in energy accumulating state, described impulse member is static, described impulse member and described piston rod are separated, when described impulse member is during in impact conditions, described impulse member impacts forward and drives described piston rod to move forward, and is also provided with the controlling organization for switching described impulse member duty on described cylinder barrel.
preferably, described impulse member comprises that permanent magnet, fixed cover are located at the exhausted magnetosheath on described permanent magnet, and described exhausted magnetosheath is set on the front end and outside perimembranous of described permanent magnet.
preferably, described electromagnetic actuator device also comprises the solenoid being fixedly arranged in described cylinder barrel, and described drive block is the iron core being fixedly located in described solenoid, and the magnetic of described iron core changes with the variation that passes into the sense of current in described solenoid.
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 impulse member or with described impulse member and is separated.
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 impulse member front end.
as a kind of detailed description of the invention, described elastic component is the spring of being located at the described ratchet other end.
further preferably, 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.
further preferably, described cylinder barrel, described drive block, described impulse member, described piston rod coaxial inner conductor arrange.
preferably, when described impulse member is during in energy accumulating state, between the front end of described impulse member and the rear end of described piston rod, there is spacing.
due to the utilization of technique scheme, this utility model compared with prior art has following advantages: electromagnetic type accumulation of energy needleless injector of the present utility model, wherein carry out electromagnetic storage by impact part, make moment percussion again after its accumulation of energy to a certain extent, initial acceleration is large, shorten significantly idle stroke, reduced the volume of needleless injector, meanwhile, in this needleless injector, electromagnetic actuator device can adopt unidirectional current, it uses safe voltage, uses more convenient safety.This needleless injector is simple in structure, and volume is little, lightweight, and low cost of manufacture can be applicable widely.
Brief description of the drawings
accompanying drawing 1 is the internal structure schematic diagram of needleless injector of the present utility model under energy accumulating state;
accompanying drawing 2 is the internal structure schematic diagram of needleless injector of the present utility model under triggering state.
wherein: 1, cylinder barrel; 11, rear end cap; 2, drive end bearing bracket; 3, electromagnetic actuator device; 31, iron core (drive block); 32, solenoid; 4, impulse member; 41, permanent magnet; 42, exhausted magnetosheath; 5, needleless ampoule assemblies; 51, piston rod; 52, medicinal liquid cavity; 6, controlling organization; 61, ratchet; 62, spring; 63, rotating shaft; 7, through hole.
Detailed description of the invention
below in conjunction with accompanying drawing and specific embodiment, the technical solution of the utility model 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.Shown in Fig. 1, Fig. 2, this impact injection device comprise have inner chamber cylinder barrel 1, be fixedly arranged on cylinder barrel 1 leading section drive end bearing bracket 2, can be located at movably impulse member 4 in cylinder barrel 1 along the fore-and-aft direction of cylinder barrel 1, be fixedly arranged on the electromagnetic actuator device 3 for driving impulse member 4 to move forward and backward in cylinder barrel 1, cylinder barrel 1 is the hollow form structure of front opening back-end closure, and the rear portion of cylinder barrel 1 is sealed by rear end cap 11.
electromagnetic actuator device 3 comprises the solenoid 32 being fixedly arranged in cylinder barrel 1 and is located in regularly the iron core 31 in solenoid 32, and solenoid 32 passes into the sense of current and changes and can make the magnetic of iron core 31 front ends change.Impulse member 4 comprises that permanent magnet 41 and fixed cover are located at the exhausted magnetosheath 42 on permanent magnet 41, in the front end that absolutely magnetosheath 42 is set in permanent magnet 41 and outside perimembranous, to prevent generation magnetic between permanent magnet 41 and cylinder barrel 1, the rear end of permanent magnet 41 has fixing magnetic pole and joins with iron core 31 magnetic.Magnetosheath 42 can adopt copper sheathing absolutely.Certainly, if the exhausted magnetic materials of employing such as cylinder barrel 1, drive end bearing bracket 2 are made, or the intracavity sidewall of cylinder barrel 1 plating establishes exhausted magnetic material, and impulse member 4 directly adopts permanent magnet 41.When after solenoid 32 energisings, the magnetic of iron core 31 changes with the variation that passes into the sense of current in solenoid 32, when the magnetic of iron core 31 front ends and the Magnetic Phase of permanent magnet 41 rear ends while, produces repulsive force between the two; And in the time that the sense of current is changed, the magnetic conversion of iron core 31 front ends, produces captivation between iron core 31 and permanent magnet 41.Can drive impulse member 4 to move forward and backward in cylinder barrel 1 by above-mentioned repulsive force and captivation.
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 like this replacement.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, impulse member 4 is between iron core 31 and piston rod 51, iron core 31, impulse member 4 and piston rod 51 coaxial inner conductor settings, when impulse member 4 impacts forward while touching piston rod 51, piston rod 51 moves forward and pushes medicinal liquid and realize injection.
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 the front end of piston rod 51 rear ends and impulse member 4 should leave suitable distance, after impulse member 4 accumulation of energys, going to like this impact conditions piston rod 51 impacts while injection, impulse member 4 impacts 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.
impulse member 4 can carry out impulsion cylinder 51 with larger impulsive force and completes injection when making to inject, impulse member 4 has energy accumulating state and triggering state, under energy accumulating state, impulse member 4 remains static and is separated with piston rod 51, the electromagnetic field producing after electromagnetic actuator device 3 energisings makes the front end of iron core 31 have the magnetic pole identical with permanent magnet 41 rear ends, make impulse member 4 constantly there is the trend moving forward away from iron core 31, by passing into constantly electric current, can make impulse member 4 constantly accumulate and produce the proal trend of accelerating; When after accumulation of energy to a certain extent, make impulse member 4 trigger, impulse member 4 moves forward under triggering state and impulsion cylinder 51 moves forward.
on cylinder barrel 1, be also provided with the controlling organization 6 for switching shock part 4 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 of impulse member 4, 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, produce under the effect of the elastic force that outwards promotes ratchet 61 at spring 62, the ratchet end of ratchet 61 front portions is kept out on the front end of impulse member 4, make impulse member 4 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 impulse member 4, 4 of impulse members impact forward and piston rod 51 moves forward and realize injection.
this needleless injector in use, under original state, the ratchet end of ratchet 61 is kept out the front end at impulse member 4, the needleless ampoule assemblies 5 that medicinal liquid is housed is mounted on drive end bearing bracket 2, pass into forward current by electrical control gear to solenoid 32, make the front end of the iron core 31 in solenoid 32 there is the magnetic pole identical with permanent magnet 41 rear ends, between iron core 31 and permanent magnet 41, produce repulsive force, make impulse member 4 constantly there is the trend moving forward away from iron core 31, by passing into constantly electric current, can make impulse member 4 constantly accumulate and produce the proal trend of accelerating, but due to the effect of ratchet 61, impulse member 4 remains static, as shown in Figure 1.In the time that electric current is increasing, the potential energy that impulse member 4 is accumulated is more and more, now press the position of ratchet 61 rear end mounting spring 62, ratchet 61 rotates and departs from impulse member 4, impulse member 4 just clashes into the piston rod 51 of needleless ampoule assemblies 5 with very fast acceleration, realize the injection of medicinal liquid, shown in Figure 2.After having injected, pass into reverse current by electrical control gear to solenoid 32, make the front end of the iron core 31 in solenoid 32 there is the magnetic pole contrary with permanent magnet 41 rear ends, between iron core 31 and permanent magnet 41, produce polarity, thereby impulse member 4 is moved backward in cylinder barrel 1 and reset.
to sum up, the technology of pulling the trigger due to employing electric accumulation of energy moment in this needleless injector, 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 utility model and feature, and its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to this utility model spirit change or modify, within all should being encompassed in protection domain of the present utility model.
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 impulse member in described cylinder barrel along fore-and-aft direction, be fixedly arranged on the electromagnetic actuator device for driving described impulse member to move forward and backward in described cylinder barrel, described electromagnetic actuator device at least comprises the drive block that changeable magnetic changes, the rear end of described impulse member has fixing magnetic pole, the rear end of described impulse member and described drive block magnetic are joined, and described impulse member and described cylinder barrel magnetic insulation ground arrange, 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 impulse member in described cylinder barrel between described drive block and described piston rod, described impulse member has energy accumulating state and impact conditions, when described impulse member is during in energy accumulating state, described impulse member is static, described impulse member and described piston rod are separated, when described impulse member is during in impact conditions, described impulse member impacts forward and drives described piston rod to move forward, and is also provided with the controlling organization for switching described impulse member duty on described cylinder barrel.
2. electromagnetic storage formula needleless injector according to claim 1, is characterized in that: described impulse member comprises that permanent magnet, fixed cover are located at the exhausted magnetosheath on described permanent magnet, and described exhausted magnetosheath is set on the front end and outside perimembranous of described permanent magnet.
3. electromagnetic storage formula needleless injector according to claim 1, it is characterized in that: described electromagnetic actuator device also comprises the solenoid being fixedly arranged in described cylinder barrel, described drive block is the iron core being fixedly located in described solenoid, and the magnetic of described iron core changes with the variation that passes into the sense of current in described solenoid.
4. 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 impulse member or with described impulse member and is separated.
5. electromagnetic storage formula needleless injector according to claim 4, 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 impulse member front end.
6. electromagnetic storage formula needleless injector according to claim 5, is characterized in that: described elastic component is the spring of being located at the described ratchet other end.
7. according to the electromagnetic storage formula needleless injector described in claim 4 or 5 or 6, it is characterized in that: described ratchet is L-type.
8. electromagnetic storage formula needleless injector according to claim 4, 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.
9. electromagnetic storage formula needleless injector according to claim 4, is characterized in that: described cylinder barrel, described drive block, described impulse member, described piston rod coaxial inner conductor arrange.
10. electromagnetic storage formula needleless injector according to claim 1, is characterized in that: when described impulse member is during in energy accumulating state, between the front end of described impulse member and the rear end of described piston rod, have spacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420246896.7U CN203898859U (en) | 2014-05-14 | 2014-05-14 | Electromagnetic energy storage type needleless injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420246896.7U CN203898859U (en) | 2014-05-14 | 2014-05-14 | Electromagnetic energy storage type needleless injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203898859U true CN203898859U (en) | 2014-10-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420246896.7U Expired - Lifetime CN203898859U (en) | 2014-05-14 | 2014-05-14 | Electromagnetic energy storage type needleless injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203898859U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103977482A (en) * | 2014-05-14 | 2014-08-13 | 苏州大学张家港工业技术研究院 | Electromagnetic energy storage type needleless injector |
| 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 |
| 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 |
-
2014
- 2014-05-14 CN CN201420246896.7U patent/CN203898859U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103977482A (en) * | 2014-05-14 | 2014-08-13 | 苏州大学张家港工业技术研究院 | Electromagnetic energy storage type needleless injector |
| 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 |
| 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 |
| CN103977482B (en) * | 2014-05-14 | 2016-06-15 | 苏州大学张家港工业技术研究院 | Electromagnetic storage formula needleless injector |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |