CN101690834B - Continuous needleless injection system driven by electromagnetic force - Google Patents
Continuous needleless injection system driven by electromagnetic force Download PDFInfo
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- CN101690834B CN101690834B CN2009101532122A CN200910153212A CN101690834B CN 101690834 B CN101690834 B CN 101690834B CN 2009101532122 A CN2009101532122 A CN 2009101532122A CN 200910153212 A CN200910153212 A CN 200910153212A CN 101690834 B CN101690834 B CN 101690834B
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- 239000007924 injection Substances 0.000 title claims abstract description 83
- 238000002347 injection Methods 0.000 title claims abstract description 83
- 238000004804 winding Methods 0.000 claims abstract description 47
- 239000003814 drug Substances 0.000 claims abstract description 41
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 35
- 229940079593 drug Drugs 0.000 claims abstract description 30
- 238000003860 storage Methods 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims description 20
- 239000000428 dust Substances 0.000 claims description 9
- 108090000565 Capsid Proteins Proteins 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 238000007373 indentation Methods 0.000 claims description 5
- 238000009827 uniform distribution Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 15
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000007920 subcutaneous administration Methods 0.000 abstract description 2
- 238000001647 drug administration Methods 0.000 abstract 1
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- 238000001467 acupuncture Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 235000013372 meat Nutrition 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000283690 Bos taurus Species 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
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- 238000005538 encapsulation Methods 0.000 description 1
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- 230000008520 organization Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 229960005486 vaccine Drugs 0.000 description 1
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Abstract
The invention discloses a continuous needleless injection system driven by electromagnetic force, belonging to the technical field of subcutaneous needleless drug administration system in medical devices. The continuous needleless injection system of the invention comprises a cartridge syringe, a drug storage and a pushing and injecting device, wherein the pushing and injecting device comprises a winding body which is matched and installed in a housing, and the outer wall of the winding body is coiled with a coil; an iron core is matched and arranged in the cavity of the winding body, and the outer part of the iron core is provided with a permanent magnet. The continuous needleless injection system driven by electromagnetic force of the invention produces repulsive force and attractive force by the direction relationship of coil magnetic field and permanent magnet magnetic force according to the principle that an electrical coil produces magnetic force; the repulsive force and the attractive force are used for driving the piston of the needleless injection system to cause high-speed jet and ensuring that the piston returns back after injection to adsorb liquid drug. Because the magnetic field force can be controlled by the number of spiral coils and electrified current intensity, the system has the advantages of simple structure, small volume, easy control and the like and is convenient to inject on a large scale.
Description
Technical field
The invention discloses the power-actuated continuous needleless injection system of a kind of electromagnetism, belong to subcutaneous needleless drug-supplying system technical field in the medical device.
Background technology
Liquid jet injecting systems (Needleless injection system) is a kind of injecting systems that utilizes the high velocity medicament jet human body to be carried out the medicine injection.The needleless injection of liquids technology moved to maturity at medical field, and International Standards Organization (ISO) has issued the Needleless injection device standard (ISO21649:2006) to clinical use in 2006.The Needleless injection system of a standard is made up of two parts usually: is used for sucking medicine, splendid attire medicine and launches the injection tube (ampoule) of medicine, and the device of propelling that can produce thrust when triggering.Propel device and comprise power set, flip flop equipment.Number of times according to single ampoule can be injected is divided, and Needleless injection system can be divided into can disposable Needleless injection system and nonexpondable Needleless injection system.The Needleless injection system that uses at present; Mostly what be used for the human injection is disposable; Wherein some is part disposable (ampoule is disposable use, propels device and can use repeatedly), and some then is overall time (Compressed Gas with encapsulation is a power usually).And be used for nonexpondable Needleless injection system that is mostly of animal injection.Because animal injection is strict not as the human injection to the hygienic requirements of injecting systems, and the inoculation of animal usually concentrates in batches and carries out, and this Needleless injection system that just requires to be used for the animal injection can repeatedly use, and can realize inhaling automatically medicine, the continuous injection.
Needleless injection is used for the animal vaccine injection, can bring a series of advantage, such as increasing biological safety, eliminates the infection that acupuncture brings, and significantly reduces the generation of animal pestilence; Increase the meat safety, because there is the pin injection to have the syringe needle hidden danger in animal body that fractures, influence the meat edible safety, jet injection has been eliminated this type of hidden danger fully; Increase injection speed, Needleless injection was accomplished in moment, had significantly reduced the time of scale injection; Increase operator safety property, handle the thoroughly elimination of infection hidden danger quilt that brings by threat and syringe needle that acupuncture in the injection process forms; Because Needleless injection was accomplished in moment, the frightened fearness of animal significant reaction will be less than has the pin injection in addition.
The applicant is preposition to apply for a patent " a kind of Needleless injection system that is used for continuously injecting animals " (application number: 200910098796.8) disclose a kind of be power with the spring, through the driven by motor leading screw and compress the Needleless injection system that is used for animal injection of spring; This system can repeatedly use, and can inhale medicine, injection continuously automatically.This Needleless injection system exists following defective in practical application: because the skin properties of animal is widely different, therefore desired driving force also has very big-difference.Driving force for the thicker hard animal of skin (like the pig cattle etc.) is required is higher, need the electrode of high torque thus, and the increase of moment of torsion can increase the size and the power consumption of motor, therefore cause the Needleless injection system size greatly, not light, be prone to shortcoming such as power consumption; The time of motor rotating band movable wire thick stick compression spring is longer, is unfavorable for the scale injection; Be that the device of power needs the sealed and disengaging gear of machinery to be used for compressing and retracting spring in addition with the spring, increased the complexity of system.
Summary of the invention
In order to overcome above-mentioned shortcoming, the invention provides a kind of simple in structure, volume is little, easy control, be convenient to the power-actuated continuous needleless injection system of electromagnetism of scale injection.
To achieve these goals, the technical scheme that the present invention adopted is:
The power-actuated continuous needleless injection system of a kind of electromagnetism; Comprise injection tube, Drug Storage, propel device; The said device of propelling comprises cooperating and is installed in the housing and outer wall is wound with the winding body of coil, is equipped with coredly in the cavity of winding body, and the outer setting of iron core has permanent magnet.
As the further setting of such scheme, the said device of propelling comprises procapsid, back casing, cylindrical shell one, permanent magnet one, iron core one, the winding body one that is wound with coil one, coil control circuit one; Iron core one is the T type to anticlockwise 90 degree, and the large end face external diameter of iron core one matches with winding body one endoporus, and engage sleeves is provided with permanent magnet one on the small end face outer wall of iron core one, and the external diameter of permanent magnet one is identical with the large end face external diameter of iron core one; Iron core one end passes cylindrical shell one, back casing successively, and fixes with nut; Form a ring-type hole between cylindrical shell one inwall and the permanent magnet one; Winding body one outer wall rear and front end is respectively arranged with the shaft shoulder one, the shaft shoulder two, and coil one has threading hole on the shaft shoulder two between the shaft shoulder one, the shaft shoulder two; Winding body one front end end is embedded with permanent magnets.
The said shaft shoulder one circumferentially is evenly distributed with a plurality of projections, and projection matches with groove on the procapsid inwall; Offer the louvre of connection on cylindrical shell one, the back casing; Winding body one front end offers passage.
As another further setting of such scheme, the said device of propelling comprises two, four permanent magnets two of winding body, iron core two, back base plate, the stopper that is installed in the housing two and is wound with coil two; Back base plate is fixedly connected on housing two rear ends through draw-in groove, and winding body two is fixed between housing two and the back base plate; Winding body two endoporus are connected with the through hole of housing two front ends, and stopper then is fixedly mounted in the through hole; Iron core two is equipped with in winding body two endoporus, and iron core two front end lateral surface match with the stopper inwall; Four permanent magnets two all are embedded at coil two middle parts, and uniform distribution; The coil two that is positioned at permanent magnet two the place aheads has joint one, joint two, and the coil two that is positioned at permanent magnet two rears has joint three, joint two, and joint two is a common contact.
Said injection tube comprises the cylindrical shell two that has chamber; In the cylindrical shell two front end chambers injection head is installed; This injection head comprises sleeve, has the injector head of spray orifice, the sealing ring that is used to seal, ball sealer, and the spring between ball sealer and the injector head is with in the ball sealer indentation sealing circle; In the cylindrical shell two middle-end chambers boss is arranged, sealing ring supports and is located on this boss.
The Drug Storage joint and the dust collecter that connect Drug Storage are installed on said cylindrical shell two front bulkheads.
Said Drug Storage joint comprises and has externally threaded front tab, has externally threaded rear tab, in Drug Storage joint middle-end chamber intravital wedged hole, open slotted cylinder in the holding screw at wedged hole middle part, the centre that is positioned at the wedged hole bottom, and bottom land is communicated with through hole on the front tab; The internal diameter at wedged hole top is greater than the internal diameter of bottom, and the through hole internal diameter on the front tab is less than the width of groove.
Said dust collecter comprises that syringe needle, front end end wall offer the flange of cone tank, the baffle plate that is positioned at the syringe needle front end, the through hole one that syringe needle is communicated with check valve, through hole two, the circumferential seal groove bottom flange and the sealing ring two that is installed in the circumferential seal groove that syringe needle is communicated with cone tank; Match with cylinder in the cone tank bottom; Flange is fixed in the Drug Storage joint through the holding screw at wedged hole middle part, and sealing ring two matches with wedged hole.
The power-actuated continuous needleless injection system of electromagnetism of the present invention; Produce the principle in magnetic field according to hot-wire coil; Through coil magnetic field and permanent magnet magnetic direction relations; Produce repulsive force and captivation, the piston that is used for driving Needleless injection system causes high-speed jet, and the injection back piston is returned suck liquid medicine.Because magnetic field force can be controlled through the quantity of spiral winding and the size of electrical current, that this system has is simple in structure, volume is little, easy control, be convenient to advantages such as scale injection.
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is described further.
Description of drawings
Fig. 1 is the structural representation of the present invention's one preferred embodiment;
Fig. 2 is the structure for amplifying sketch map of injection tube among Fig. 1;
Fig. 3 is the structure for amplifying sketch map of Drug Storage among Fig. 1;
Fig. 4 looks enlarged diagram for the left side of check valve among Fig. 3;
Fig. 5 is for propelling the structure for amplifying sketch map of device among Fig. 1;
Fig. 6 propels the apparatus structure sketch map for another preferred embodiment of the present invention;
Fig. 7 is for being equipped with winding body two structural representations of permanent magnet two among Fig. 6;
Fig. 8 is that A-A among Fig. 7 is to cross-sectional schematic.
The specific embodiment
As shown in Figure 1, the power-actuated continuous needleless injection system of electromagnetism of the present invention comprises injection tube 1, Drug Storage 5, propels device 6.
In conjunction with Fig. 1, Fig. 5, propel device 6 and comprise procapsid 62, back casing 63, cylindrical shell 1, permanent magnet 1, iron core 1, the winding body 1 that is wound with coil 1, the coil control circuit 1 that is installed in the shell 61.Iron core 1 is the T type to anticlockwise 90 degree; The large end face external diameter of iron core 1 matches with winding body one 67 endoporus; Engage sleeves is provided with permanent magnet 1 on the small end face outer wall of iron core 1, and the external diameter of permanent magnet 1 is identical with the large end face external diameter of iron core 1.Iron core one 66 ends pass cylindrical shell 1, back casing 63 successively, and fixing with nut 661.Form a ring-type hole 641 between cylindrical shell one 64 inwalls and the permanent magnet 1.Winding body one 67 outer wall rear and front ends are respectively arranged with the shaft shoulder 1, the shaft shoulder 2 676, and coil 1 has threading hole 675 on the shaft shoulder 2 676 between the shaft shoulder 1, the shaft shoulder 2 676.Winding body one 67 front end ends are embedded with permanent magnets 68.The shaft shoulder 1 circumferentially is evenly distributed with a plurality of projections 672, and projection 672 matches with groove 677 on procapsid 62 inwalls, and projection 672 can slide in groove 677 vertically.Offer the louvre 631 of connection on cylindrical shell 1, the back casing 63.Winding body one 67 front ends offer passage 674.
In conjunction with Fig. 1, Fig. 2; Injection tube 1 comprises the cylindrical shell 2 12 that has chamber 11; In the cylindrical shell 2 12 front end chambers 11 injection head is installed; This injection head comprises sleeve 13, has the injector head 14 of spray orifice 141, the sealing ring 15 that is used to seal, ball sealer 16, and the spring 17 between ball sealer 16 and the injector head 14 is with in the ball sealer 16 indentation sealing circles 15; In the cylindrical shell 2 12 middle-end chambers 11 boss 18 is arranged, sealing ring 15 supports to be located on this boss 18.
The Drug Storage joint 2 and dust collecter 3 that connect Drug Storage 5 are installed on cylindrical shell 2 12 front bulkheads.
In conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4; Drug Storage joint 2 comprises and has externally threaded front tab 22, has externally threaded rear tab 26, in Drug Storage joint 2 middle-end chambeies intravital wedged hole 24, have the cylinder 23 of groove 231 in the holding screw 25 at wedged hole 24 middle parts, the centre that is positioned at wedged hole 24 bottoms, and 231 ends of groove, be communicated with through hole 21 on the front tab 22; The internal diameter at wedged hole 24 tops is greater than the internal diameter of bottom, and through hole 21 internal diameters on the front tab 22 are less than the width of groove 231.
Owing to require cultivated animals is injected continuously, need to realize to inhale medicine from Drug Storage 5, carry out jet injection from injection head then; Inhale medicine from Drug Storage 5 again after having injected, therefore in dust collecter 3 and injection head, be provided with one-way valve structures, be i.e. check valve 35 and ball sealer 16; When making from Drug Storage 5 suction medicines; In the ball sealer 16 indentation sealing circles 15, check valve 35 is opened, and medicinal liquid flows into chamber 11 from Drug Storage 5; During injection, check valve 35 is closed, and ball sealer 16 leaves sealing ring 15, and medicinal liquid ejects from the spray orifice 141 of injection head front end under the thrust of piston 69.
The operation principle of present embodiment is following:
Open coil control circuit 1 earlier, give coil one 671 input forward current A, and have magnetic field in the annular hole 641, the magnetic field major part concentrates on opening part; The sense of current is vertical in magnetic direction and the coil 1, so coil 1 begins to the motion of the bottom of annular hole 641 under the effect of Lorentz force; Simultaneously, the permanent magnet 1 of winding body one 67 front ends holds piston 69, and spurs piston 69 along with the motion of winding body 1; At this moment, the ball sealer 16 in the injection head is formed sealing by volute spring 17 indentation sealing circles 15, thereby forms vacuum at piston 69 and 16 of ball sealers; At this moment, the check valve 35 on the dust collecter 3 will be opened under atmospheric effect, and air can get into the bottom of Drug Storage 5 through through hole 1 like this; And medicinal liquid is pressed in the chamber 11 through through hole 21, when piston 69 moves to desired location, stop to coil one 671 power supplies; Therefore piston 69 is parked in desired location, at this moment, inhales the medicine process and accomplishes.
When needs are injected, open coil control circuit 1 earlier, give coil one 671 input reverse current B, there is magnetic field in the annular hole 641; The magnetic field major part concentrates on opening part, and the sense of current is vertical in magnetic direction and the coil 1, so coil 1 is under the effect of Lorentz force; Beginning is away from the bottom of annular hole 641, and simultaneously, the permanent magnet 68 of winding body one 67 front ends holds piston 69; Therefore, piston 69 will begin to propel medicinal liquid under the promotion of winding body 1, at this moment; Medicinal liquid in the chamber 11 will be because the promotion of piston 69 will produce pressure, and medicinal liquid is through the air of through hole 2 310 compression Drug Storages 5 bottoms, through the effect of through hole 1; Atmospheric pressure in the check valve 35 also will increase, and the air pressure of increase stops the outflow of medicinal liquid with closed check valve 35; Simultaneously; The pressure of the medicinal liquid in the chamber 11 also will act on the ball sealer 16 in the injection head, and the pressure that the pressure of medicinal liquid will overcome spring 17 pushes away sealing ring 15 with ball sealer 16, makes medicinal liquid therefrom flow through; And ejection in spray orifice 141; Spray when accomplishing, stop to coil one 671 power supplies at this moment, course of injection is accomplished.
Another embodiment of the power-actuated continuous needleless injection system of electromagnetism of the present invention, it is different with aforesaid structure that it propels device 6, and the structure of injection tube 1, Drug Storage 5 is then with aforementioned the same.In conjunction with Fig. 6, Fig. 7, Fig. 8, the device 6 of propelling of another embodiment of the present invention comprises the winding body 29 that is installed in the housing 28 and is wound with coil 24, four permanent magnets 2 10, iron core 2 91, back base plate 81, stopper 82.Back base plate 81 is fixedly connected on housing 28 rear ends through draw-in groove, and winding body 29 is fixed between housing 28 and the back base plate 81; Winding body 29 endoporus 92 are connected with the through hole 4 83 of housing 28 front ends, and 82 of stoppers are fixedly mounted in the through hole 4 83; Iron core 2 91 is equipped with in winding body 29 endoporus 92, and iron core 2 91 front end lateral surface match with stopper 82 inwalls; Four permanent magnets 2 10 all are embedded at coil 24 middle parts, and uniform distribution; The coil 24 that is positioned at permanent magnet 2 10 the place aheads has joint 1, joint 2 42, and the coil 24 that is positioned at permanent magnet 2 10 rears has joint 3 43, joint 2 42, and joint 2 42 is a common contact.
As shown in Figure 8, four permanent magnets 2 10 of present embodiment, its magnetic pole is positioned at the both ends of the surface with axis normal, and the magnetic pole of four permanent magnet 2 10 the same sides is identical.
The operation principle of present embodiment is following:
Before the suction, under the effect of permanent magnet 2 10, stopper 82, iron core 2 91 is positioned at the endoporus 92 of winding body 29.During suction, joint 2 42 ground connection, joint 3 43 connects positive source, and joint 1 breaks off, and this moment, the right-hand member of winding body 29 was an energising serpentine pipe, and under the action of a magnetic field of winding body 29 and permanent magnet 2 10, iron core 2 91 is magnetized, then end motion to the right; During injection, joint 2 42 ground connection, joint 1 connects positive source, and joint 3 43 breaks off, and this moment, the left end of winding body 29 was an energising serpentine pipe, and under the action of a magnetic field of winding body 29 and permanent magnet 2 10, iron core 2 91 is magnetized, then end motion left.
The foregoing description only is used to the inventive concept of the present invention of explaining, but not to the qualification of rights protection of the present invention, allly utilizes this design that the present invention is carried out the change of unsubstantiality, all should fall into protection scope of the present invention.
Claims (7)
1. power-actuated continuous needleless injection system of electromagnetism; Comprise injection tube, Drug Storage, propel device; It is characterized in that: the said device of propelling comprises cooperating and is installed in the housing and outer wall is wound with the winding body of coil; Be equipped with cored (66) in the cavity of winding body, the outer setting of iron core (66) has permanent magnet; Wherein, the described device of propelling specifically comprises procapsid, back casing, cylindrical shell (64), permanent magnet, iron core (66), the winding body that is wound with coil, coil control circuit; Iron core (66) is the T type to anticlockwise 90 degree, and the large end face external diameter of iron core (66) matches with the winding body endoporus, and engage sleeves is provided with permanent magnet on the small end face outer wall of iron core (66), and the external diameter of permanent magnet is identical with the large end face external diameter of iron core (66); Iron core (66) end passes cylindrical shell (64), back casing successively, and fixes with nut; Form a ring-type hole between cylindrical shell (64) inwall and the permanent magnet; Winding body outer wall rear and front end is respectively arranged with the shaft shoulder one, the shaft shoulder two, and coil has threading hole on the shaft shoulder two between the shaft shoulder one, the shaft shoulder two; Winding body front end end is embedded with permanent magnets.
2. the power-actuated continuous needleless injection system of electromagnetism as claimed in claim 1 is characterized in that: the said shaft shoulder one circumferentially is evenly distributed with a plurality of projections, and projection matches with groove on the procapsid inwall; Offer the louvre of connection on cylindrical shell (64), the back casing; The winding body front end offers passage.
3. power-actuated continuous needleless injection system of electromagnetism; Comprise injection tube, Drug Storage, propel device; It is characterized in that: the said device of propelling comprises cooperating and is installed in the housing and outer wall is wound with the winding body of coil; Be equipped with cored (66) in the cavity of winding body, the outer setting of iron core (66) has permanent magnet; Wherein, the said device of propelling specifically comprises the winding body that is installed in the housing and is wound with coil, four permanent magnets, iron core (66), back base plate, stopper; Back base plate is fixedly connected on the housing rear end through draw-in groove, and winding body is fixed between housing and the back base plate; The winding body endoporus is connected with the through hole of housing front end, and stopper then is fixedly mounted in the through hole; Iron core (66) is equipped with in the winding body endoporus, and iron core (66) front end lateral surface matches with the stopper inwall; Four permanent magnets all are embedded at the coil middle part, and uniform distribution; The coil that is positioned at permanent magnet the place ahead has joint one, joint two, and the coil that is positioned at the permanent magnet rear has joint three, joint two, and joint two is a common contact.
4. like claim 1 or the power-actuated continuous needleless injection system of 3 described electromagnetism; It is characterized in that: said injection tube comprises the cylindrical shell two that has chamber; In the cylindrical shell two front end chambers injection head is installed; This injection head comprises sleeve, has the injector head of spray orifice, the sealing ring that is used to seal, ball sealer, and the spring between ball sealer and the injector head is with in the ball sealer indentation sealing circle; In the cylindrical shell two middle-end chambers boss is arranged, sealing ring supports and is located on this boss.
5. the power-actuated continuous needleless injection system of electromagnetism as claimed in claim 4 is characterized in that: the Drug Storage joint and the dust collecter that connect Drug Storage are installed on said cylindrical shell two front bulkheads.
6. the power-actuated continuous needleless injection system of electromagnetism as claimed in claim 5; It is characterized in that: said Drug Storage joint comprises and has externally threaded front tab, has externally threaded rear tab, in Drug Storage joint middle-end chamber intravital wedged hole, open slotted cylinder in the holding screw at wedged hole middle part, the centre that is positioned at the wedged hole bottom, and bottom land is communicated with through hole on the front tab; The internal diameter at wedged hole top is greater than the internal diameter of bottom, and the through hole internal diameter on the front tab is less than the width of groove.
7. the power-actuated continuous needleless injection system of electromagnetism as claimed in claim 6; It is characterized in that: said dust collecter comprises that syringe needle, front end end wall offer the flange of cone tank, the baffle plate that is positioned at the syringe needle front end, the through hole one that syringe needle is communicated with check valve, through hole two, the circumferential seal groove bottom flange and the sealing ring two that is installed in the circumferential seal groove that syringe needle is communicated with cone tank; Match with said cylinder in the cone tank bottom; Flange is fixed in the Drug Storage joint through the holding screw at wedged hole middle part, and sealing ring two matches with wedged hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101532122A CN101690834B (en) | 2009-10-29 | 2009-10-29 | Continuous needleless injection system driven by electromagnetic force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101532122A CN101690834B (en) | 2009-10-29 | 2009-10-29 | Continuous needleless injection system driven by electromagnetic force |
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| CN101690834A CN101690834A (en) | 2010-04-07 |
| CN101690834B true CN101690834B (en) | 2012-02-15 |
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| CN2009101532122A Expired - Fee Related CN101690834B (en) | 2009-10-29 | 2009-10-29 | Continuous needleless injection system driven by electromagnetic force |
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| 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 |
| 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 |
| CN104096299B (en) * | 2014-07-23 | 2016-09-07 | 杭州电子科技大学 | Therapeutic equipment for the injection of human body medicine trace |
| EP3294384B1 (en) | 2015-05-10 | 2022-01-12 | Kolorpen Ltd. | Device and method for repetitive needleless injection |
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| CN108452405B (en) * | 2017-02-20 | 2022-04-08 | 新加坡国立大学 | Electromagnetic driving device for needle-free injection |
| CN107929890A (en) * | 2017-12-04 | 2018-04-20 | 王立青 | A kind of disease of old people dedicated transfusion auxiliary device |
| CN109006015B (en) * | 2018-10-09 | 2023-11-28 | 爱恩溪(武汉)科技有限公司 | Injection syringe |
| 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 |
| CN112245715B (en) * | 2020-10-19 | 2022-11-15 | 西安工程大学 | Electromagnetic force driven automatic injection device |
| CN113384778A (en) * | 2021-06-10 | 2021-09-14 | 苏芮 | Controllable needleless injection device |
| CN115887825A (en) * | 2022-07-04 | 2023-04-04 | 嘉兴森迈医疗科技有限公司 | Magnetic driving injection device |
| CN116637255B (en) * | 2023-04-23 | 2024-06-07 | 卓优医疗(苏州)有限公司 | Micro-dose adjusting method for needleless injection device |
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| CN101690834A (en) | 2010-04-07 |
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