CN106474599A - A kind of needleless injector - Google Patents
A kind of needleless injector Download PDFInfo
- Publication number
- CN106474599A CN106474599A CN201610828496.0A CN201610828496A CN106474599A CN 106474599 A CN106474599 A CN 106474599A CN 201610828496 A CN201610828496 A CN 201610828496A CN 106474599 A CN106474599 A CN 106474599A
- Authority
- CN
- China
- Prior art keywords
- gas bomb
- needleless injector
- drug storage
- storage pipe
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/30—Syringes for injection by jet action, without needle, e.g. for use with replaceable ampoules or carpules
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M2005/3114—Filling or refilling
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- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a kind of needleless injector, including：Cylindrical shell, injection head and pneumatic means, the top of described inside the shell is provided with pneumatic means, the bottom of inside the shell is provided with drug storage pipe, in drug storage pipe, piston is installed, piston is installed with pneumatic means cooperation, drug storage pipe exposed junction is provided with injection head, pneumatic means includes gas bomb, airway and mobile plug, described gas bomb is fixedly mounted on inside the shell, the outlet of gas bomb is connected with switching device, the outlet of switching device is connected with one or more airway, the port of export of airway is fixedly mounted on the pore that movement is provided with beyond the Great Wall, described pore is the through hole along the axis insertion of mobile plug.The technical purpose of the present invention be to provide a kind of being capable of the needleless injector that uses of topping up, continuous several times.
Description
Technical field
The present invention relates to medical device arts, particularly a kind of needleless injector.
Background technology
Needleless injector carrying out not needing by syringe needle when medicine is injected, using high-pressure spray principle so that medicine
Liquid forms thinner fluid, moment penetrate skin reach subcutaneous.
Needleless injection can't see syringe needle, and the psychologically conflict to treatment will be preferably minimized, and the compliance for the treatment of will carry
Height, especially Children with Diabetes.Needleless injection can bring many benefits to diabeticss, have and greatly reduced pin injection
Misery that device brings, do not have injection site repeatedly to inject after scleroma the benefit such as formation.
But topping up multiple injection is inconvenient successively for present needleless injector, and can not effective control injection
Amount, and the continuous frequency injection of existing pneumatic needleless injector is less, and particularly patient stays at home needs repeatedly to make for a long time
With needleless injector, and the few gas-driven needle-less syringe of access times, change gas bomb trouble, and can not determine when to change
Change gas bomb, problems during use, occur.
Content of the invention
For the above-mentioned existing issue in needleless injector, the technical purpose of the present invention is to provide one kind can once fill
The needleless injector that liquid, continuous several times use, the present invention also provides a kind of a kind of control automatically controlling to needleless injector
Method is so that the control of injection volume is relatively reliable, efficient.
The present invention is achieved through the following technical solutions：
A kind of needleless injector, including：The shell of cylinder, injection head and pneumatic means, the top of described inside the shell is provided with gas
Dynamic device, the bottom of inside the shell is provided with drug storage pipe, is provided with piston in drug storage pipe, and piston is installed with pneumatic means cooperation, drug storage
Pipe exposed junction is provided with injection head.
Further, described pneumatic means includes gas bomb, airway and mobile plug, and described gas bomb fixedly mounts outside
In shell, the outlet of gas bomb is connected with switching device, and the outlet of switching device is connected with one or more airway, the outlet of airway
End is fixedly mounted on the pore that movement is provided with beyond the Great Wall, and described pore is the through hole along the axis insertion of mobile plug.
Further, described mobile plug is fixedly mounted with the catch bar of retractor device near the center at gas bomb end,
Retractor device is fixedly mounted on the inwall of shell；It is provided with drawstring between mobile plug and piston.
Further, described switching device is electric-controlled ball valve.
Further, described retractor device is micro hydraulic cylinder or miniature electric cylinder, and micro hydraulic cylinder is miniature servo-fluid
Cylinder pressure, miniature electric cylinder is miniature servo electric jar.
Further, described movement is provided with the steam vent connecting with housing exterior beyond the Great Wall, and steam vent is externally provided with miniature noise elimination
Device.
The control system of the needleless injector based on technique scheme, is provided with pressure transducer in gas bomb, and stretch dress
Install displacement transducer, pressure transducer and displacement transducer are connected with MCU respectively, and MCU is also connected with electric-controlled ball valve and control
Panel.
The control method of needleless injector is：
（1）, when needing injection, medicinal liquid is inputted in drug storage pipe, order is sent to MCU by control panel, MCU controls flexible dress
Put so that mobile plug promotes piston, by the air emptying in drug storage pipe；Now the distance between mobile plug and piston are 0, then
Amount of liquid medicine Q1=injected as needed, the length of drawstring is L, and l is the distance that position is got back in movement, and d is drug storage
Bore；By injection head perpendicular alignmnet direct projection position, press switching device, MCU controls electric-controlled ball valve to open 1～2 second time, so
Close electric-controlled ball valve afterwards, it is L-l that piston promotes the distance of medicinal liquid movement；
（2）, when needing second to inject, controlling retractor device to make mobile plug move forward distance is M, then inject for second
Amount of liquid medicine be Q2=, later per injection mode all with second injection system is identical, until having injected or being not required to
Till when to be injected.
The invention has the beneficial effects as follows:
By using miniature servo hydraulic cylinder or miniature servo electric jar band as dynamical element, and also pass through displacement transducer
To confirm the distance of movement, the distance of axial movement that can be precisely controlled mobile plug is such that it is able to be precisely controlled the defeated of medicinal liquid
Output, controls more accurate, and can be administered multiple injection successively, facilitate patient's multiple injection, and do not have others
Impurity enters in drug storage pipe, more cleaning, clean, drug storage pipe changeable type design, is easy to ring drug storage pipe during dressing；It is provided with
Controlling the ultimate range between mobile plug and piston, structure is simple, reliable for drawstring, and make syringe weight lighter；
By in per injection, the distance between mobile plug and piston, in the length range of drawstring, can substantially reduce gas bomb
Usage amount so that the frequency injection that gas bomb uses is more than the twice of existing gas bomb practicality number of times；And pass through MCU
To automatically control retractor device, the ON/OFF of electric-controlled ball valve, the air pressure in automatic detection gas bomb, so that injector operations
Simplicity, the function that can automatically control, solve existing needleless injector injection operation loaded down with trivial details and can not find in time inject
The problem of insufficient pressure.
Brief description
Fig. 1 is the structural representation of needleless injector.
In figure labelling：1 is shell, 2 is gas bomb, 3 is airway, 4 is mobile plug, 5 is piston, 6 is drug storage pipe, 7 are
Retractor device, 8 be drawstring, 9 be injection head.
Specific embodiment
The present invention is described in detail below in conjunction with the accompanying drawings.
Needleless injector as shown in Figure 1, including：Shell 1, gas bomb 2, airway 3, mobile plug 4, piston 5, drug storage pipe
6th, retractor device 7, drawstring 8 and injection head 9, the top in described shell 1 is provided with pneumatic means, and the bottom in shell 1 is provided with storage
Pencil 6, is provided with piston 5 in drug storage pipe 6, piston 5 is installed with pneumatic means cooperation, and drug storage pipe 6 exposed junction is provided with injection head 9,
The pressure of moment can be provided by the pneumatic means being provided with for the piston 5 in drug storage pipe 6 so that piston 5 moved within moment
The distance setting, thus the injection volume of precise control syringe is so that control more accurate, and the distance of piston 5 movement is passed through
Control retractor device 7, to control the movement of mobile plug 4, fills in the distance between 4 and piston 5 thus controlling and moving.
Pneumatic means includes gas bomb 2, airway 3 and mobile plug 4, and described gas bomb 2 is fixedly mounted in shell 1, storage
The outlet of gas cylinder 2 is connected with switching device, and the outlet of switching device is connected with one or more airway 3, and the port of export of airway 3 is solid
Dingan County is contained on the pore that mobile plug 4 is provided with, and described pore is the through hole along the 4 axis insertions of mobile plug, by controlling switch
Device makes the gases at high pressure in gas bomb 2 enter airway 3, then under the guiding of airway 3, through the pore of mobile plug 4
Enter between mobile plug 4 and piston 5, thus the mobile offer pressure for piston 5.
Described mobile plug 4 is fixedly mounted with the catch bar of retractor device 7 near the center at gas bomb 2 end, and stretch dress
Put 7 inwalls being fixedly mounted on shell 1；It is provided with drawstring 8, drawstring 8 can have many, and drawstring 8 is solid between mobile plug 4 and piston 5
Measured length, can not be flexible, and by drawstring 8 so that piston 5 is under the promotion of gases at high pressure, the displacement of piston 5 is to set
Value, and by the effect of retractor device 7 so that adjusting the distance of each piston 5 movement, thus accurate adjustment injection volume.
Switching device is electric-controlled ball valve, and by switching device is set to electric-controlled ball valve, electric-controlled ball valve is easy to control, and holds
Pressure is big, reliable.Retractor device 7 is micro hydraulic cylinder or miniature electric cylinder, generally for the weight mitigating syringe, and uses and defends
Star servo electric jar, the distance of precise control mobile bar 4 movement.
Described mobile plug 4 is provided with the steam vent with shell 1 ft connection, and steam vent is externally provided with mini-type muffler, just logical
Cross the steam vent being provided with, the gas promoting piston 5 can be discharged, the diameter of steam vent is less than 1mm, and steam vent is externally provided with air-flow
Deceleration device, and steam vent can be connected with the switching device controlling aerofluxuss, to control the time of aerofluxuss, by miniature acoustic filter
The noise of air-flow generation can be reduced；Drug storage pipe 6 and the height of the inwall joint of shell 1 are set to identical, that is, drug storage pipe 6 with
The internal diameter of shell 1 is identical, and drug storage pipe 6 can embed in installation and shell 1.
The control system of needleless injector, is provided with pressure transducer in gas bomb 2, retractor device 7 is provided with displacement transducer,
Pressure transducer and displacement transducer are connected with MCU respectively, and MCU is also connected with electric-controlled ball valve and control panel.
The control method of needleless injector, comprises the following steps：
（1）, when needing injection, medicinal liquid is inputted in drug storage pipe 6, order is sent to MCU by control panel, MCU controls flexible
Device 7 makes mobile plug 4 promotion piston 5, by the air emptying in drug storage pipe 6；Now the distance between mobile plug 4 and piston 5
For 0, amount of liquid medicine Q1=then injected as needed, the length of drawstring is L, and l is the distance that position is got back in movement,
D is drug storage pipe 6 internal diameter；By injection head 9 perpendicular alignmnet direct projection position, press switching device, MCU controls electric-controlled ball valve to open 1～2
Time second, it is then shut off electric-controlled ball valve, it is L-l that piston 5 promotes the distance of medicinal liquid movement；
（2）, when needing second to inject, controlling retractor device 7 to make mobile plug 4 move forward distances is M, then note for second
The amount of liquid medicine penetrated is Q2=, later per injection mode all with second injection system is identical, until having injected or not
Till needing during injection, the injection volume of per injection can adjust it is also possible to be injected come adjust automatically by the program setting
Amount, and drug storage pipe 6 can be set to transparent, drug storage pipe 6 is provided with scale, then go back the size of the amount of observable per injection, with
Guarantee that injection volume is correct.
By being provided with pressure transducer in gas bomb 2, can air pressure size in real-time detection gas bomb 2, with timely
When gas bomb 2 internal gas pressure is not enough, changes gas bomb 2, provide enough air pressure to inject, improve the success rate of injection.
By using miniature servo hydraulic cylinder or miniature servo electric jar band as dynamical element, and also passed by displacement
Sensor, to confirm the distance of movement, can be precisely controlled the distance moving the axial movement filling in 4 such that it is able to be precisely controlled medicinal liquid
Output, control more accurate, and multiple injection can be administered successively, facilitate patient's multiple injection, and do not have it
His impurity enters in drug storage pipe 6, more cleaning, clean, drug storage pipe 6 changeable type design, is easy to ring drug storage pipe during dressing
6；The drawstring 8 being provided with moves, to control, the ultimate range filled between 4 and piston 5, and structure is simple, reliable, and makes syringe
Weight lighter；By in per injection, moving the distance between plug 4 and piston 5 in the length range of drawstring, Neng Gou great
The big usage amount reducing gas bomb so that frequency injection that gas bomb 2 uses be the practical number of times of existing gas bomb 2 twice with
On；And retractor device 7, the ON/OFF of electric-controlled ball valve, the air pressure in automatic detection gas bomb 2 is automatically controlled by MCU, from
And make injector operations easy, and the function that can automatically control, solve existing needleless injector injection operation loaded down with trivial details and not
The hypodynamic problem of injection pressure can be found in time.
Claims (8)
1. a kind of needleless injector is it is characterised in that include：Cylindrical shell（1）, injection head（9）And pneumatic means, described
Shell（1）Interior top is provided with pneumatic means, shell（1）Interior bottom is provided with drug storage pipe（6）, drug storage pipe（6）Work is inside installed
Plug（5）, piston（5）Coordinate with pneumatic means and install, drug storage pipe（6）Exposed junction is provided with injection head（9）.
2. needleless injector according to claim 1 is it is characterised in that described pneumatic means includes gas bomb（2）, inducing QI
Pipe（3）And move plug（4）, described gas bomb（2）It is fixedly mounted on shell（1）Interior, gas bomb（2）Outlet be connected with switch dress
Put, the outlet of switching device is connected with one or more airway（3）, airway（3）The port of export be fixedly mounted on mobile plug（4）
On the pore being provided with, described pore is along mobile plug（4）The through hole of axis insertion.
3. needleless injector according to claim 2 is it is characterised in that described movement is filled in（4）Near gas bomb（2）End
Center and retractor device（7）Catch bar fixed installation, retractor device（7）It is fixedly mounted on shell（1）Inwall；Mobile
Plug（4）With piston（5）Between be provided with drawstring（8）.
4. needleless injector according to claim 2 is it is characterised in that described switching device is electric-controlled ball valve.
5. needleless injector according to claim 3 is it is characterised in that described retractor device（7）For micro hydraulic cylinder or
Miniature electric cylinder.
6. needleless injector according to claim 3 is it is characterised in that described movement is filled in（4）It is provided with and shell（1）Outward
The steam vent of portion's connection, steam vent is externally provided with mini-type muffler.
7. the control system of the needleless injector according to one of claim 1-6 is it is characterised in that gas bomb（2）Inside it is provided with pressure
Force transducer, retractor device（7）It is provided with displacement transducer, pressure transducer and displacement transducer are connected with MCU respectively, and MCU is also
It is connected with electric-controlled ball valve and control panel, control panel is provided with display device.
8. the control method of needleless injector according to claim 7 is it is characterised in that comprise the following steps：
（1）, need injection when, by medicinal liquid input drug storage pipe（6）Interior, order is sent to MCU by control panel, MCU control is stretched
Compression apparatus（7）So that mobile plug（4）Promote piston（5）, by drug storage pipe（6）Interior air emptying；Now mobile plug（4）With piston
（5）The distance between be 0, amount of liquid medicine Q1=then injected as needed, drawstring（8）Length be L, l be move
The dynamic distance getting back into position, d is drug storage pipe（6）Internal diameter；By injection head（9）Perpendicular alignmnet direct projection position, presses switching device, MCU
Control electric-controlled ball valve to open 1～2 second time, be then shut off electric-controlled ball valve, piston（5）The distance promoting medicinal liquid movement is L-l；
（2）, when needing second to inject, control retractor device（7）So that mobile plug（4）Forward movement distance is M, then second
The amount of liquid medicine of secondary injection is Q2=, later per injection mode all with second injection system is identical, until having injected
Or till not needing during injection；
（3）If gas bomb（2）Inside be provided with pressure transducer detect air pressure too low when, MCU makes the display on control panel set
The too low warning message of air pressure in standby display gas bomb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610828496.0A CN106474599A (en) | 2016-09-19 | 2016-09-19 | A kind of needleless injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610828496.0A CN106474599A (en) | 2016-09-19 | 2016-09-19 | A kind of needleless injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106474599A true CN106474599A (en) | 2017-03-08 |
Family
ID=58267241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610828496.0A Withdrawn CN106474599A (en) | 2016-09-19 | 2016-09-19 | A kind of needleless injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106474599A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108707990A (en) * | 2018-08-17 | 2018-10-26 | 安徽和邦纺织科技有限公司 | A kind of experimental teaching equipment of synchronous production multiple fiber |
| CN111517013A (en) * | 2020-06-04 | 2020-08-11 | 沈阳吉畅科技有限公司 | Chemical product production process terminal control device based on Internet of things |
| CN114392472A (en) * | 2021-12-21 | 2022-04-26 | 北京大学深圳医院 | Endoscope real-time image guided synchronous radiotherapy and chemotherapy intratumoral drug delivery accurate treatment device |
| CN115957393A (en) * | 2022-12-07 | 2023-04-14 | 香港大学深圳医院 | Chemotherapy pump |
| CN111517013B (en) * | 2020-06-04 | 2024-09-24 | 沈阳吉畅科技有限公司 | Terminal control device for production process of chemical products based on Internet of things |
-
2016
- 2016-09-19 CN CN201610828496.0A patent/CN106474599A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108707990A (en) * | 2018-08-17 | 2018-10-26 | 安徽和邦纺织科技有限公司 | A kind of experimental teaching equipment of synchronous production multiple fiber |
| CN111517013A (en) * | 2020-06-04 | 2020-08-11 | 沈阳吉畅科技有限公司 | Chemical product production process terminal control device based on Internet of things |
| CN111517013B (en) * | 2020-06-04 | 2024-09-24 | 沈阳吉畅科技有限公司 | Terminal control device for production process of chemical products based on Internet of things |
| CN114392472A (en) * | 2021-12-21 | 2022-04-26 | 北京大学深圳医院 | Endoscope real-time image guided synchronous radiotherapy and chemotherapy intratumoral drug delivery accurate treatment device |
| CN115957393A (en) * | 2022-12-07 | 2023-04-14 | 香港大学深圳医院 | Chemotherapy pump |
| CN115957393B (en) * | 2022-12-07 | 2023-12-15 | 香港大学深圳医院 | Chemotherapy pump |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170308 |