CN103816586A - Mechanical needle-free injection propulsion device - Google Patents
Mechanical needle-free injection propulsion device Download PDFInfo
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- CN103816586A CN103816586A CN201410071016.1A CN201410071016A CN103816586A CN 103816586 A CN103816586 A CN 103816586A CN 201410071016 A CN201410071016 A CN 201410071016A CN 103816586 A CN103816586 A CN 103816586A
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- propulsion device
- propulsion plant
- compress spring
- compression spring
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Abstract
The invention discloses a mechanical needle-free injection propulsion device, which comprises a piston-type impact head, a first compression spring, a regulating mechanism, a self-locking mechanism and a control key, wherein the piston-type impact head is arranged in a cavity of a hollow cylindrical propulsion device main body; the first compression spring is used for driving the impact to move; the regulating mechanism comprises a Chinese character 'tu'-shaped inside hexagonal bolt; the inside hexagonal bolt is matched with first internal threads located in an inner cavity at the tail end of the propulsion device main body; the first compression spring is located between the impact head and the inside hexagonal bolt; the compressing force of the first compression spring is adjusted by adjusting the inside hexagonal bolt; the front end of the propulsion device main body is provided with second internal threads used for being in threaded connection with an ampoule bottle; the self-locking mechanism comprises a sleeve, a torsion spring, a second compression spring and a snap ring, wherein the second compression spring and the snap ring are movably sheathed on the propulsion device main body. The mechanical needle-free injection propulsion device disclosed by the invention has the advantages that the structure of the propulsion device is greatly simplified; the operation is convenient; the operation process of a needle-free injector is orderly and safe; the mechanical needle-free injection propulsion device is especially suitable for self-operation of patients.
Description
Technical field
The present invention relates to Needleless injection propulsion plant, for human body or animal are carried out to Needleless injection, belong to medical machinery product scope.
Background technology
Needleless injection administration is to utilize the fluid of the high-voltage high-speed medicinal liquid of moment generation to animal or human's body subcutaneous injection doses, belongs to instrument used for injection field.Needleless injection is a kind of new way of percutaneous dosing, compared with needled conventionally drug injection, needleless injector can inject voluntarily, painless when easy to operate, safety, injection, injection efficiency is high and injection after the high feature of drug absorption rate, the application of Needleless injection technology aspect clinical treatment and family health care is day by day extensive.
Mechanical type needleless injector generally comprises ampoule bottle, propulsion plant and pressue device.Because the requirement of needleless injector propeller processing safety is higher, all more complicated of mechanical type needleless injector propeller structure that use in the market, operating process is loaded down with trivial details, inconvenient especially for diabetes old people's operation of frequent use needleless injector.Based on above reason, the present invention has simple to operate, safe and reliable feature.
Summary of the invention
In view of above-mentioned existing situation, content of the present invention mainly comprises propulsion plant main body, governor motion and self-locking mechanism, improves propulsion plant safety and operating reliability.
The present invention is achieved through the following technical solutions:
A kind of mechanical type Needleless injection propulsion plant, comprise the piston type impact head being located in hollow cylindrical propulsion plant body cavity, promote the first Compress Spring that impact head moves, governor motion, self-locking mechanism and control button, described governor motion comprises a convex shape hexagon socket head cap screw, described hexagon socket head cap screw matches with the first screw thread that is positioned at propulsion plant main body end inner chamber, the first Compress Spring is between impact head and hexagon socket head cap screw, by regulating hexagon socket head cap screw to regulate the compression stress of the first Compress Spring, propulsion plant body front end is provided with the second female thread for being threaded with ampoule bottle, described self-locking mechanism comprises sleeve, torsionspring, be enclosed within actively the second Compress Spring and snap ring in propulsion plant main body, described sleeve and propulsion plant body front end outer wall interference fit, for locating the left end of the second Compress Spring, the right-hand member of described the second Compress Spring contacts with snap ring, described control button is hinged by pin and propulsion plant main body, described control button front end has the draw-in groove matching with snap ring, the torsionspring that makes to control button and remain clockwise torsion is housed on described pin.
Described sleeve and propulsion plant body front end are interference fit, and for the second Compress Spring in positioning self-locking mechanism, the other end of the second Compress Spring contacts with snap ring, and in compressive state.
Described control button is positioned at propulsion plant main body middle part and passes through pin and connect with main body, and pin is interior is equipped with torsionspring.Control button front portion and have draw-in groove, guarantee to control button and remain clockwise spring torsion.
The present invention compared with prior art, simplifies in a large number in mechanism, and parts are few, easy to process, and cost is low, not only simple to operate, adjustable, and safety and reliability increases greatly.
Accompanying drawing explanation
Fig. 1 is the structural representation that main body inner spring of the present invention is compressive state;
Fig. 2 is that main body inner spring of the present invention is the structural representation after impacting.
Shown in figure, be: 1-sleeve; 2-the second Compress Spring; 3-draw-in groove; 4-controls button; 5-torsionspring; 6-pin; 7-impact head; 8-the first Compress Spring; 9-the first female thread; 10-hexagon socket head cap screw; 11-the second female thread; 12-snap ring; 13-propulsion plant main body.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, goal of the invention of the present invention is described in further detail, embodiment can not repeat one by one at this, but therefore embodiments of the present invention are not defined in following examples.
As shown in Figure 1, a kind of mechanical type Needleless injection propulsion plant, comprise the piston type impact head 7 being located in hollow cylindrical propulsion plant main body 13 cavitys, promote the first Compress Spring 8 that impact head 7 moves, governor motion, self-locking mechanism and control button, described governor motion comprises a convex shape hexagon socket head cap screw 10, described hexagon socket head cap screw 10 matches with the first screw thread 9 that is positioned at propulsion plant main body 13 end inner chambers, the first Compress Spring 8 is between impact head 7 and hexagon socket head cap screw 10, by regulating hexagon socket head cap screw 10 to regulate the compression stress of the first Compress Spring 8, propulsion plant main body 13 front ends are provided with the second female thread 11 for being threaded with ampoule bottle, described self-locking mechanism comprises sleeve 1, torsionspring 5, be enclosed within actively the second Compress Spring 2 and snap ring 12 in propulsion plant main body 13, described sleeve 1 and propulsion plant main body 13 front end outer wall interference fit, for locating the left end of the second Compress Spring 2, the right-hand member of described the second Compress Spring 2 contacts with snap ring 12, described control button 4 is hinged by pin 6 and propulsion plant main body 13, described control button 4 front ends have the draw-in groove 3 matching with snap ring 12, the torsionspring 5 that makes to control button 4 and remain clockwise torsion is housed on described pin 6.
In the time that propulsion plant pressurizes by pressing mechanism, the first Compress Spring 8 in propulsion plant main body 13 by compression, impact head 7 is toward moving right, in the time that impact head 7 moves to as shown in Figure 1 position, control button 4 and under the effect of torsionspring 5, produce clockwise torsion, and impact head 7 is stuck in to certain position (as shown in Figure 1), the first Compress Spring 8 is in compressive state.Snap ring 12, because the effect of the second Compress Spring 2 is toward moving right, is stuck in and controls below button 4 simultaneously, and at this moment controlling button 4 cannot be down by control, and mechanism is in self-locking state.
Before operation, first ampoule bottle is connected with propulsion plant main body 13 by the second female thread 11.While carrying out injection operation, first the pressure that overcomes the second Compress Spring 2 by external force (manpower) is turned left snap ring 12 to promote and be located in the draw-in groove 3 of controlling button 4, press again and control button 4, make to control button 4 and rotate counterclockwise certain angle take pin 6 as center of rotation, control button 4 right-hand members and lift, tap the head 7 restriction that cancelling liquidates, now, impact head 7, under the impetus of the first Compress Spring 8, impacts ampoule bottle to the right and compresses medicament injection site is injected, as shown in Figure 2.
In the time that needs regulate injection pressure or speed, can regulate by governor motion, regulate the front and back position of hexagon socket head cap screw 10, to reach the pressure that changes the first Compress Spring 8, thereby realize the object that regulates impulsive force size.
The second Compress Spring 2 of self-locking mechanism is located by sleeve 1, and sleeve and propulsion plant main body are interference fit.Only have in the time that snap ring 12 is positioned at the draw-in groove 3 of controlling button and just may press controlling button, realize and triggering.
The present invention simplifies in a large number in mechanism, not only simple to operate, adjustable, and safety and reliability increases greatly.Only complete " push away, block, press " and just can complete injection operation.
The above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all embodiments.All any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in the protection domain of the claims in the present invention.
Claims (1)
1. a mechanical type Needleless injection propulsion plant, comprise mobile the first Compress Spring (8), governor motion, self-locking mechanism and the control button (4) of piston type impact head (7), promotion impact head (7) being located in hollow cylindrical propulsion plant main body (13) cavity, it is characterized in that:
Described governor motion comprises a convex shape hexagon socket head cap screw (10), described hexagon socket head cap screw (10) matches with the first screw thread (9) that is positioned at propulsion plant main body (13) end inner chamber, the first Compress Spring (8) is positioned between impact head (7) and hexagon socket head cap screw (10), by regulating hexagon socket head cap screw (10) to regulate the compression stress of the first Compress Spring (8), propulsion plant main body (13) front end is provided with the second female thread (11) for being threaded with ampoule bottle, described self-locking mechanism comprises sleeve (1), torsionspring (5), be actively set on the second Compress Spring (2) and snap ring (12) in propulsion plant main body (13), described sleeve (1) and propulsion plant main body (13) front end outer wall interference fit, be used for locating the left end of the second Compress Spring (2), the right-hand member of described the second Compress Spring (2) contacts with snap ring (12), described control button (4) is hinged by pin (6) and propulsion plant main body (13), described control button (4) front end has the draw-in groove (3) matching with snap ring (12), the torsionspring (5) that makes to control button (4) and remain clockwise torsion is housed on described pin (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410071016.1A CN103816586B (en) | 2014-02-28 | 2014-02-28 | A kind of mechanical type Needleless injection propulsion plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410071016.1A CN103816586B (en) | 2014-02-28 | 2014-02-28 | A kind of mechanical type Needleless injection propulsion plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103816586A true CN103816586A (en) | 2014-05-28 |
| CN103816586B CN103816586B (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410071016.1A Expired - Fee Related CN103816586B (en) | 2014-02-28 | 2014-02-28 | A kind of mechanical type Needleless injection propulsion plant |
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| CN (1) | CN103816586B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105477749A (en) * | 2016-01-13 | 2016-04-13 | 北京步腾医学科技有限公司 | Disposable needle-free spring syringe |
| CN108066854A (en) * | 2016-11-16 | 2018-05-25 | 浙江九天寰宇生物科技有限公司 | A kind of needleless hair style syringe |
| CN109589476A (en) * | 2017-10-02 | 2019-04-09 | 镇江日泰生物工程设备有限公司 | A kind of efficient electric needleless injector |
| KR20200040156A (en) * | 2018-10-08 | 2020-04-17 | 신경수 | Needle-free Injection Device |
| CN115154765A (en) * | 2022-06-17 | 2022-10-11 | 江苏益明荣药医疗科技有限公司 | Pedal type energy storage device for needleless injector |
| CN115154766A (en) * | 2022-06-21 | 2022-10-11 | 江苏益明荣药医疗科技有限公司 | Self-energizing device for needleless injector |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2737946A (en) * | 1949-09-01 | 1956-03-13 | Jr George N Hein | Hypodermic injection apparatus |
| CN2936281Y (en) * | 2006-06-22 | 2007-08-22 | 陈凯 | Propelling injector for no-needle injection |
| CN200987809Y (en) * | 2006-11-30 | 2007-12-12 | 陈凯 | Push injector for needle free injection |
| CN201453779U (en) * | 2009-08-06 | 2010-05-12 | 普华筑金科技(北京)股份有限公司 | Thruster of needleless injector |
| CN202426976U (en) * | 2012-01-18 | 2012-09-12 | 李�昊 | Needleless injection propeller |
| CN203736631U (en) * | 2014-02-28 | 2014-07-30 | 华南理工大学 | Mechanical needleless injection propelling device |
-
2014
- 2014-02-28 CN CN201410071016.1A patent/CN103816586B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2737946A (en) * | 1949-09-01 | 1956-03-13 | Jr George N Hein | Hypodermic injection apparatus |
| CN2936281Y (en) * | 2006-06-22 | 2007-08-22 | 陈凯 | Propelling injector for no-needle injection |
| CN200987809Y (en) * | 2006-11-30 | 2007-12-12 | 陈凯 | Push injector for needle free injection |
| CN201453779U (en) * | 2009-08-06 | 2010-05-12 | 普华筑金科技(北京)股份有限公司 | Thruster of needleless injector |
| CN202426976U (en) * | 2012-01-18 | 2012-09-12 | 李�昊 | Needleless injection propeller |
| CN203736631U (en) * | 2014-02-28 | 2014-07-30 | 华南理工大学 | Mechanical needleless injection propelling device |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105477749A (en) * | 2016-01-13 | 2016-04-13 | 北京步腾医学科技有限公司 | Disposable needle-free spring syringe |
| CN108066854A (en) * | 2016-11-16 | 2018-05-25 | 浙江九天寰宇生物科技有限公司 | A kind of needleless hair style syringe |
| CN109589476A (en) * | 2017-10-02 | 2019-04-09 | 镇江日泰生物工程设备有限公司 | A kind of efficient electric needleless injector |
| KR20200040156A (en) * | 2018-10-08 | 2020-04-17 | 신경수 | Needle-free Injection Device |
| KR102187368B1 (en) | 2018-10-08 | 2020-12-04 | 신경수 | Needle-free Injection Device |
| CN115154765A (en) * | 2022-06-17 | 2022-10-11 | 江苏益明荣药医疗科技有限公司 | Pedal type energy storage device for needleless injector |
| CN115154765B (en) * | 2022-06-17 | 2023-10-20 | 江苏乐聚医药科技有限公司 | Pedal energy storage device for needleless injector |
| CN115154766A (en) * | 2022-06-21 | 2022-10-11 | 江苏益明荣药医疗科技有限公司 | Self-energizing device for needleless injector |
| CN115154766B (en) * | 2022-06-21 | 2023-10-20 | 江苏乐聚医药科技有限公司 | Self-energizing device for needleless injector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103816586B (en) | 2016-04-13 |
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Granted publication date: 20160413 |