CN103816586B - A kind of mechanical type Needleless injection propulsion plant - Google Patents
A kind of mechanical type Needleless injection propulsion plant Download PDFInfo
- Publication number
- CN103816586B CN103816586B CN201410071016.1A CN201410071016A CN103816586B CN 103816586 B CN103816586 B CN 103816586B CN 201410071016 A CN201410071016 A CN 201410071016A CN 103816586 B CN103816586 B CN 103816586B
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- propulsion plant
- compress spring
- hexagon socket
- main body
- cap screw
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Abstract
The present invention patent discloses a kind of mechanical type Needleless injection propulsion plant, comprise the piston type impact head be located in hollow cylindrical propulsion plant body cavity, the first Compress Spring promoting impact head movement, 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 being positioned at propulsion plant body ends inner chamber, first Compress Spring, between impact head and hexagon socket head cap screw, regulates the compression stress of the first Compress Spring by adjustment hexagon socket head cap screw.Propulsion plant body front end is provided with the second female thread for being threaded with ampoule bottle, and described self-locking mechanism comprises sleeve, torsionspring, is enclosed within the second Compress Spring in propulsion plant main body and snap ring actively.The present invention enormously simplify the structure of propulsion plant, and easy to operate, ensure that needleless injector operating process is orderly, safety, is particularly suitable for patient's Self-operating.
Description
Technical field
The present invention relates to Needleless injection propulsion plant, for carrying out Needleless injection to human body or animal, belonging to medical machinery product scope.
Background technology
Needleless injection administration utilizes the high-voltage high-speed medicinal liquid produced instantaneously to the fluid of 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 self administer, easy to operate, safety, injection time painless, injection efficiency is high and after injection, drug absorption rate is high feature, the application of needleless injection techniques in 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 needleless injector propeller processing safety requires higher, the mechanical type needleless injector propeller structure all more complicated used in the market, operating process is loaded down with trivial details, and for often using, the diabetes old people operation of needleless injector is inconvenient especially.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 be located in hollow cylindrical propulsion plant body cavity, promote the first Compress Spring of impact head movement, 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 being positioned at propulsion plant body ends inner chamber, first Compress Spring is between impact head and hexagon socket head cap screw, by the compression stress regulating hexagon socket head cap screw to regulate 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 the second Compress Spring in propulsion plant main body and snap ring actively, 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 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 matched with snap ring, the torsionspring making control button remain clockwise torsion described pin is equipped with.
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 is in compressive state.
Described control button to be positioned in the middle part of propulsion plant main body and to be connected with main body, built with torsionspring in pin by pin.Control button front portion and have draw-in groove, ensure that controlling button remains clockwise spring torsion.
The present invention compared with prior art, mechanism simplifies in a large number, 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 to be main body inner spring of the present invention be compressive state structural representation;
Fig. 2 to be main body inner spring of the present invention be impact after structural representation.
Shown in figure be: 1-sleeve; 2-second Compress Spring; 3-draw-in groove; 4-controls button; 5-torsionspring; 6-pin; 7-impact head; 8-first Compress Spring; 9-first female thread; 10-hexagon socket head cap screw; 11-second female thread; 12-snap ring; 13-propulsion plant main body.
Detailed description of the invention
Be described in further detail goal of the invention of the present invention below in conjunction with the drawings and specific embodiments, 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 be located in hollow cylindrical propulsion plant main body 13 cavity, promote the first Compress Spring 8 of impact head 7 movement, 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 being positioned at propulsion plant main body 13 terminus lumen, first Compress Spring 8 is between impact head 7 and hexagon socket head cap screw 10, by the compression stress regulating hexagon socket head cap screw 10 to regulate 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 enclosed within the second Compress Spring 2 in propulsion plant main body 13 and snap ring 12 actively, 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 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 matched with snap ring 12, the torsionspring 5 making control button 4 remain clockwise torsion described pin 6 is equipped with.
When propulsion plant is pressurizeed by pressing mechanism, the first Compress Spring 8 in propulsion plant main body 13 by compression, impact head 7 is toward moving right, when impact head 7 move to as shown in Figure 1 position time, control button 4 under the effect of torsionspring 5, produce clockwise torsion, and impact head 7 being stuck in certain position (as shown in Figure 1), the first Compress Spring 8 is in compressive state.Snap ring 12 is because the effect of the second Compress Spring 2 is toward moving right simultaneously, is stuck in and controls below button 4, and at this moment controlling button 4 cannot 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.When carrying out injection operation, snap ring 12 is turned left and is promoted and be located in the draw-in groove 3 of control button 4 by the pressure first overcoming the second Compress Spring 2 by external force (manpower), press again and control button 4, make control button 4 with pin 6 for center of rotation rotates counterclockwise certain angle, control button 4 right-hand member and lift, cancel the restriction to impact head 7, now, impact head 7, under the impetus of the first Compress Spring 8, impacts ampoule bottle to the right and compresses medicament and inject injection site, as shown in Figure 2.
When needs regulate injection pressure or speed, regulate by governor motion, regulate the front and back position of hexagon socket head cap screw 10, to reach the pressure of change first Compress Spring 8, thus realize the object regulating impulsive force size.
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 and just control button may be pressed when snap ring 12 is positioned at the draw-in groove 3 controlling button, realize 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 exhaustive without the need to also giving all embodiments.All any amendments done within the spirit and principles in the present invention, equivalent to replace and improvement etc., within the protection domain that all should be included in the claims in the present invention.
Claims (1)
1. a mechanical type Needleless injection propulsion plant, comprise the piston type impact head (7) be located in hollow cylindrical propulsion plant main body (13) cavity, the first Compress Spring (8) promoting impact head (7) movement, governor motion, self-locking mechanism and control button (4), 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) being positioned at propulsion plant main body (13) terminus lumen, first Compress Spring (8) is positioned between impact head (7) and hexagon socket head cap screw (10), by the compression stress regulating hexagon socket head cap screw (10) to regulate 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) in propulsion plant main body (13) and snap ring (12), 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 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) matched with snap ring (12), the torsionspring (5) making control button (4) remain clockwise torsion described pin (6) is equipped with.
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 CN103816586A (en) | 2014-05-28 |
| CN103816586B true CN103816586B (en) | 2016-04-13 |
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Family Applications (1)
| 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 |
Country Status (1)
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| CN (1) | CN103816586B (en) |
Families Citing this family (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 |
| KR102187368B1 (en) * | 2018-10-08 | 2020-12-04 | 신경수 | Needle-free Injection Device |
| 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 |
| 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 |
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 |
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| Publication number | Publication date |
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| CN103816586A (en) | 2014-05-28 |
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Granted publication date: 20160413 |