CN203898858U - Electromagnetic energy-storage-type needleless injector - Google Patents
Electromagnetic energy-storage-type needleless injector Download PDFInfo
- Publication number
- CN203898858U CN203898858U CN201420246814.9U CN201420246814U CN203898858U CN 203898858 U CN203898858 U CN 203898858U CN 201420246814 U CN201420246814 U CN 201420246814U CN 203898858 U CN203898858 U CN 203898858U
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- cylinder barrel
- needleless injector
- impact armature
- impact
- armature
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Abstract
The utility model discloses an electromagnetic energy-storage-type needleless injector which comprises an electric control device and an impact injection device. 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 arranged in the cylinder barrel in a manner of being capable of moving along the front-rear direction of the cylinder barrel, and an electromagnetic coil fixedly arranged in the cylinder barrel and used for driving the impact armature to move back and forth after being electrified. By performing electric energy storage on the impact armature, the impact armature is impacted abruptly after energy is stored to a certain degree, and initial acceleration is high, so that empty stroke is shorted greatly, and size of the needleless injector is reduced. In addition, direct current is adopted in the needleless injector, so that the needleless injector can use safe voltage, thereby being more convenient and safer to use. 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
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 storage formula 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 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 in the time 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 the controlling organization for switching 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.
due to the utilization of technique scheme, this utility model compared with prior art has following advantages: electromagnetic storage formula needleless injector of the present utility model, wherein carry out electric accumulation of energy by impact armature, make moment percussion again after its accumulation of energy to a certain extent, initial acceleration is large, shorten 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.
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 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.
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.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 in the time 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, in the time that solenoid 4 is switched on, 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 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, impact forward while touching piston rod 51 when impacting armature 3, piston rod 51 moves forward and pushes medicinal liquid and realize injection.
impacting armature 3 when making to inject can carry out impulsion cylinder 51 with larger impulsive force and complete injection, 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 3 accumulation of energys of impact armature, going to like this impact conditions piston rod 51 impacts while injection, 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, 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 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 front of impacting armature, and the rear end of piston rod 51 maintains a certain distance with the front end that impacts armature 3.
first pass into forward current by electrical control gear to solenoid 4, 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 due to the effect of ratchet 61, impact armature 3 and remain static, as shown in Figure 1.In the time that 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 rotate and depart from impact armature 3, impact armature 3 just clashes into needleless ampoule assemblies 5 piston rod 51 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 4, the electromagnetism drive that reverse current produces drives impact armature 3 to move backward and realizes reset.
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 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 in the time 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 the controlling organization for switching 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 (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420246814.9U CN203898858U (en) | 2014-05-14 | 2014-05-14 | Electromagnetic energy-storage-type needleless injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420246814.9U CN203898858U (en) | 2014-05-14 | 2014-05-14 | Electromagnetic energy-storage-type needleless injector |
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| Publication Number | Publication Date |
|---|---|
| CN203898858U true CN203898858U (en) | 2014-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420246814.9U Withdrawn - After Issue CN203898858U (en) | 2014-05-14 | 2014-05-14 | Electromagnetic energy-storage-type needleless injector |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103977483A (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 |
| CN109875716A (en) * | 2019-03-10 | 2019-06-14 | 卢乐 | Ox abomasal displacement operation repositor |
| CN109893285A (en) * | 2019-03-28 | 2019-06-18 | 卢乐 | Ox abomasal displacement operation repositor based on electromagnetic drive |
-
2014
- 2014-05-14 CN CN201420246814.9U patent/CN203898858U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103977483A (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 |
| CN103977483B (en) * | 2014-05-14 | 2016-04-13 | 苏州大学张家港工业技术研究院 | A kind of electromagnetic storage formula needleless injector |
| CN109875716A (en) * | 2019-03-10 | 2019-06-14 | 卢乐 | Ox abomasal displacement operation repositor |
| CN109875716B (en) * | 2019-03-10 | 2020-12-04 | 义乌市泽宣科技有限公司 | Cow abomasum left displacement operation restorer |
| CN109893285A (en) * | 2019-03-28 | 2019-06-18 | 卢乐 | Ox abomasal displacement operation repositor based on electromagnetic drive |
| CN109893285B (en) * | 2019-03-28 | 2020-12-15 | 义乌市泽宣科技有限公司 | Electromagnetic drive-based cattle abomasum left displacement operation restorer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141029 Effective date of abandoning: 20160413 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |