CN2863136Y - Inermous injector with adjustable injection dosage - Google Patents
Inermous injector with adjustable injection dosage Download PDFInfo
- Publication number
- CN2863136Y CN2863136Y CN 200620000963 CN200620000963U CN2863136Y CN 2863136 Y CN2863136 Y CN 2863136Y CN 200620000963 CN200620000963 CN 200620000963 CN 200620000963 U CN200620000963 U CN 200620000963U CN 2863136 Y CN2863136 Y CN 2863136Y
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- China
- Prior art keywords
- injection
- rod
- compression spring
- adjusting rod
- adjusting
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- Expired - Fee Related
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
A hypospray with adjustable injection dosage comprises an injecting tube, a pressurizing rod, a spanner, a pushing rod, and a compression spring. The pushing rod is arranged in the injecting tube, the front end of the pushing rod is provided with a piston, and the rear end thereof is provided with the compression spring, the pushing rod and spanner are fixed on the injecting tube, the front-end screw of the injecting tube is connected to a tubular injector which can rotate relatively to adjust the dosage, the front end of the injector is provided with an injecting hole, the back portion of the pushing rod is provided with a chamber containing a stop block, the back end of the stop block is connected with an adjusting rod extruding outside the chamber and the back cover, the adjusting rod is crossed through the compression spring, the back end of the adjusting rod is connected with an adjusting rod button. The utility model can rotate the adjusting rod button to adjust the injection dosage. The utility model has the advantages of simple structure, easy operation, and adjustable injection dosage.
Description
Technical field
This utility model relates to technical field of medical instruments, belongs to a kind of needleless injector of scalable injected dose.
Background technology
Needleless injector is a kind of former in the pressurization of liquid medicine by external impetus such as springs, and makes liquid drug pass through the micropore of 0.02-0.1 millimeter with the form of high-voltage high-speed.Liquid drug can not use syringe needle to penetrate human or animal's skin and enter in the body.
There are problems in the needleless injector that is used for liquid drug at present aspect adjustment injection pressure and the injected dose.For example: disposable product is too much, repeats perfusion, and injection depth such as can not adjust at problem.These deficiencies are difficult to satisfy actual instructions for use.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, easy to use, the needleless injector of scalable injected dose.
For achieving the above object, this utility model is taked following design:
A kind of needleless injector of scalable injected dose, it includes the injection body, pressure rod, trigger, push rod and compression spring, described push rod is arranged in the injection body, the front end of this push rod has piston, there is compression spring the rear end of this push rod, described pressure rod and trigger are separately fixed on the injection body, front end at the injection body is threaded and can relatively rotates the tubulose injection head that is used to regulate dosage, the front end of this injection head has the injection micropore, it is characterized in that: a cavity is arranged in the rear section of described push rod, in this cavity, be provided with stops, be connected with the adjusting rod that stretches out cavity and bonnet in the rear end of stops, placing compression spring on this adjusting rod, the rear end of this adjusting rod is connected with the adjusting rod knob.
Drive the relative syringe body of stops that is connected with adjusting rod by the adjusting rod knob with relatively rotating of syringe body and vertically move, relatively moving of stops can make the front position of compression spring after release change.This change in location can directly cause the change in location of push rod, and the effective travel that causes then injecting changes, and just injection volume changes.Finally, reach the purpose of adjusting injection volume by rotation adjusting rod knob.This structure makes user can adjust the injected dose of needleless injector easily.
In order to regulate injection depth, being threaded in the rear end of described injection body to relatively rotate the bonnet that is used to regulate injection depth.
In order to regulate injection depth, one side of described tubulose injection head be provided with one with the tubulose injection head in the adjusting cylinder that communicates, in this adjusting cylinder, be provided with piston, the rear portion of this piston is provided with compression spring, be provided with at the rear portion of this compression spring and regulate the adjusting rod that cylinder is threaded, the rear end of this adjusting rod is connected with knob.
The utility model has the advantages that: simple in structure, easy to use, the scalable injected dose.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 is a local enlarged diagram among Fig. 1
The specific embodiment
Referring to Fig. 1, shown in Figure 2: a kind of needleless injector of scalable injected dose, it includes injection body 3, pressure rod 5, trigger 15, push rod 4 and compression spring 6, described push rod 4 is arranged in the injection body 3, the front end of this push rod 4 has piston 14, there is compression spring 6 rear end of this push rod 4, described pressure rod 5 and trigger 15 are provided with respectively and are fixed on the injection body 3, front end at injection body 3 is threaded and can relatively rotates the tubulose injection head 1 that is used to regulate dosage, and the front end of this injection head 1 has injection micropore 18.
In order to adjust the size of injection volume, a cavity 16 is arranged in the rear section of described push rod 4, in this cavity 16, be provided with stops 13, be connected with the adjusting rod 17 that stretches out cavity 16 and bonnet 11 in the rear end of stops 13, placing compression spring 6 on this adjusting rod 17, and be threaded with bonnet 11, the rear end of this adjusting rod 17 is connected with adjusting rod knob 12.
Drive the stops 13 relative syringe bodies 3 that are connected with adjusting rod by adjusting rod knob 12 with relatively rotating of syringe body 3 and vertically move, relatively moving of stops 13 can make the front position of compression spring 6 after release change.This change in location can directly cause the change in location of push rod 4, and the effective travel that causes then injecting changes, and just injection volume changes.Finally, reach the purpose of adjusting injection volume by rotation adjusting rod knob 12.This structure makes user can adjust the injected dose of needleless injector easily.
Because but the injection head 1 of the band of this perfusion injection micropore 18 is connected with injection body 3 by screw thread 2, and injection head 1 can rotate relatively with injection body 3, finish to reach per injection, after push rod 4 withdrew for owing to pressure rod 5 compression spring 6 pressurizations, the rotation of injecting body 3 by injection head 1 relatively reached the dosage of regulating injection next time.This structure can make the medicine in the syringe body 3 rest on for a long time in the injection head 1, and when needs were injected, rotary injection head 1 was adjusted suitable dosage and just can be injected, and the medicine 7 in injection head 1 uses until exhausted.This structure makes the waste that has reduced disposable product in the use of needleless injector, has brought convenience to user simultaneously.
In order to regulate injection depth, being threaded in the rear end of described injection body 3 to relatively rotate the bonnet 11 that is used to regulate injection depth.
Reach the precompression of regulating compression spring 6 by relative rotation bonnet 11, thereby make the variation of this compression spring precompression be delivered to injected liquid drug 7 by push rod 4.Liquid drug can change the speed of ejaculation because of the variation of compression spring 6 precompressions, finally causes the variation of injection depth.This method has solved the problem that needs to adjust injection depth because of different medicines, different parts and various objectives etc.
In order to regulate injection depth, a side of described tubulose injection head 1 be provided with one with the tubulose injection head in the adjusting cylinder 19 that communicates, in this adjusting cylinder 19, be provided with piston 8, the rear portion of this piston 8 is provided with compression spring 9, be provided with at the rear portion of this compression spring 9 and regulate the adjusting rod 20 that cylinder is threaded, the rear end of this adjusting rod 20 is connected with knob 10.
The pressure of high pressure medicine 7 when regulating cylinder 19 inherences and being subjected to injecting and make piston 8 produce motion.Have compression spring 9 in piston 8 back, the precompression of spring 9 can be by the Spin Control of knob 10.Relatively rotating by spring 9 of knob 10 makes piston 8 produce the variation of pressure.When user is wanted to reduce injection depth, regulate knob 10 spring 9 loosened, when highly pressurised liquid produce to the pressure of piston 8 during greater than the pressure of 9 pairs of pistons 8 of spring, piston 8 can move to spring 9 directions.This athletic meeting makes highly pressurised liquid medicine 7 descend at the pressure of moment, and the pressure that syringe sets out also descends thereupon, and therefore, injection depth just can reduce.When needs increased injection depth, rotation knob 10 increased the pressure of spring 9.
Claims (3)
1, a kind of needleless injector of scalable injected dose, it includes the injection body, pressure rod, trigger, push rod and compression spring, described push rod is arranged in the injection body, the front end of this push rod has piston, there is compression spring the rear end of this push rod, described pressure rod and trigger are separately fixed on the injection body, front end at the injection body is threaded and can relatively rotates the tubulose injection head that is used to regulate dosage, the front end of this injection head has the injection micropore, it is characterized in that: a cavity is arranged in the rear section of described push rod, in this cavity, be provided with stops, be connected with the adjusting rod that stretches out cavity and bonnet in the rear end of stops, placing compression spring on this adjusting rod, the rear end of this adjusting rod is connected with the adjusting rod knob.
2, the needleless injector of a kind of scalable injected dose according to claim 1 is characterized in that: the rear end of described injection body is threaded and can relatively rotates the bonnet that is used to regulate injection depth.
3, the needleless injector of a kind of scalable injected dose according to claim 1, it is characterized in that: a side of described tubulose injection head be provided with one with the tubulose injection head in the adjusting cylinder that communicates, in this adjusting cylinder, be provided with piston, the rear portion of this piston is provided with compression spring, be provided with at the rear portion of this compression spring and regulate the adjusting rod that cylinder is threaded, the rear end of this adjusting rod is connected with knob.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620000963 CN2863136Y (en) | 2006-01-16 | 2006-01-16 | Inermous injector with adjustable injection dosage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620000963 CN2863136Y (en) | 2006-01-16 | 2006-01-16 | Inermous injector with adjustable injection dosage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2863136Y true CN2863136Y (en) | 2007-01-31 |
Family
ID=37675588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620000963 Expired - Fee Related CN2863136Y (en) | 2006-01-16 | 2006-01-16 | Inermous injector with adjustable injection dosage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2863136Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106860973A (en) * | 2017-03-16 | 2017-06-20 | 于怀庆 | Fluid injection pressure control syringe |
| CN111203292A (en) * | 2020-02-13 | 2020-05-29 | 华中科技大学同济医学院附属协和医院 | Micropipettor and pipetting method |
-
2006
- 2006-01-16 CN CN 200620000963 patent/CN2863136Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106860973A (en) * | 2017-03-16 | 2017-06-20 | 于怀庆 | Fluid injection pressure control syringe |
| CN111203292A (en) * | 2020-02-13 | 2020-05-29 | 华中科技大学同济医学院附属协和医院 | Micropipettor and pipetting method |
| CN111203292B (en) * | 2020-02-13 | 2023-07-11 | 华中科技大学同济医学院附属协和医院 | Micro-pipette and pipetting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING KUAISHUER MEDICAL TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: BEIJING KANG FU BO SCIENCE AND TECHNOLOGY DEVELOPMENT CO., LTD. Effective date: 20071228 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20071228 Address after: Keyuan Road Beijing city Daxing District Industrial Development Zone No. 18 A3 layer side, zip code: 102600 Patentee after: Beijing Kuaishuer Medical Technology Co.,Ltd. Address before: Beijing city Fengtai District Kexing Road No. 7, room 409, zip code: 100070 Patentee before: Beijing Kanfubo Technology Development Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070131 Termination date: 20100219 |