CN107050580B - Automatic reset needleless injector with pressurization function - Google Patents
Automatic reset needleless injector with pressurization function Download PDFInfo
- Publication number
- CN107050580B CN107050580B CN201611069722.8A CN201611069722A CN107050580B CN 107050580 B CN107050580 B CN 107050580B CN 201611069722 A CN201611069722 A CN 201611069722A CN 107050580 B CN107050580 B CN 107050580B
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- CN
- China
- Prior art keywords
- valve
- air
- vent pipe
- core
- push plate
- 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.)
- Expired - Fee Related
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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
-
- 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
- A61M5/3148—Means for causing or aiding aspiration or plunger retraction
Landscapes
- 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 an automatic reset needleless injector with a pressurization function, which comprises a reversing valve, a cylinder body, a control valve, a pressurization valve, a piston, a medicine storage pipe and a push rod, wherein the reversing valve is arranged at one end of the cylinder body, the control valve is sleeved at one end of the cylinder body, which is provided with the reversing valve, the medicine storage pipe is fixed at one end, which is far away from the reversing valve, of the cylinder body through an end cover, the pressurization valve is sleeved at one end, which is provided with the medicine storage pipe, the reversing valve comprises a valve body, an air inlet air passage, an air outlet air passage, a first air passage and a second air passage are formed in the valve body, a rotary valve core for controlling the on-off of the air inlet air passage, the air outlet air passage, the first air passage and the second air passage is arranged. The external air pressure is greatly improved after being boosted by the booster valve, the injection work can be well completed, and the invention has simple structure and is convenient for popularization and implementation.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to an automatic reset needleless injector with a pressurization function.
Background
A needleless injector is an injector which can directly enter human subcutaneous tissues by using power to push medicine to generate high-speed jet flow. The needleless injector can avoid some inevitable defects of the conventional needleless injector, such as disease infection, needle fear and the like. However, the needleless injector in the prior art has relatively complex structure and high cost, and cannot be widely used.
Disclosure of Invention
The invention aims to solve the technical problem of providing an automatic reset needleless injector with a pressurization function, which has a simple structure and is convenient to control.
In order to solve the technical problems, the technical scheme of the invention is as follows: an automatic reset needleless injector with a pressurization function comprises a reversing valve, a barrel, a control valve, a pressurization valve, a piston, a medicine storage pipe and a push rod, wherein the reversing valve is arranged at one end of the barrel, the control valve is arranged at one end of the barrel, the end cover, provided with the reversing valve, of the barrel is arranged at one end of the barrel, the end cover is used for fixing the medicine storage pipe, the pressurization valve is arranged at one end of the medicine storage pipe in a sleeved mode, the reversing valve comprises a valve body, an air inlet passage, an air outlet passage, a first air passage and a second air passage are arranged on the valve body, a rotary valve core for controlling the on-off of the air inlet passage, the air outlet passage, the first air passage and the second air passage is arranged in the valve body, a first vent pipe, a second vent pipe and a third vent pipe are arranged on the control valve, the pressurization valve comprises a first push plate, a second core sleeve, a pressurization chamber and a reset, the second push plate is arranged in the second core sleeve, and the first push plate is connected with the second push plate through a connecting rod; the pressurizing chamber is communicated with the first vent pipe through the second vent pipe, the resetting chamber is communicated with the third vent pipe, the first vent pipe is communicated with the first air passage, the resetting chamber is communicated with the second air passage through the third vent pipe, the second push plate pushes the piston arranged in the second core sleeve through a liquid medium, the piston abuts against one end of the push rod, and the other end of the push rod is arranged in the medicine storage pipe.
Furthermore, two channels are formed in the rotary valve core, and the two channels are communicated with the air inlet channel, the air outlet channel, the first air channel and the second air channel through rotation of the rotary valve core.
Furthermore, the control valve comprises a first core sleeve and a first valve core sleeved in the first core sleeve, the first vent pipe, the second vent pipe and the third vent pipe are arranged on the first core sleeve, and the first valve core controls the communication of the first vent pipe and the second vent pipe.
Furthermore, a stop block is arranged at one end, away from the reversing valve, of the first core sleeve, a spring is arranged between the stop block and the first valve core, and the first valve core is connected with a push key arranged on the outer side of the cylinder body.
Furthermore, the first push plate and the second push plate are both disc-shaped, and the diameter of the first push plate is larger than that of the second push plate.
The beneficial effects obtained by adopting the technical scheme are as follows: the pipeline that high-pressure gas got into can be easily controlled through the switching-over valve, the reciprocating motion of realization piston that can be light. The external air pressure is greatly improved after being boosted by the booster valve, the injection work can be well completed, and the invention has simple structure and is convenient for popularization and implementation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an automatic reset needleless injector with a pressurization function.
In the figure: 1-air inlet channel, 2-valve body, 3-first air channel, 4-cylinder, 5-first vent pipe, 6-first valve core, 7-push key, 8-first core sleeve, 9-stop block, 10-first push plate, 11-second push plate, 12-liquid medium, 13-piston, 14-second core sleeve, 15-end cover, 16-medicine storage tube, 17-rotary valve core, 18-second air channel, 19-air outlet channel, 20-second vent pipe, 21-pressurizing chamber, 22-connecting rod, 23-resetting chamber, 24-third vent pipe, 25-pushing rod, 100-reversing valve, 200 control valve and 300-pressurizing valve.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The invention is further described with reference to the accompanying drawings, so that those skilled in the art can better implement the invention, and the automatic reset needleless injector with the pressurization function in the embodiment of the invention comprises a reversing valve 100, a cylinder 4, a control valve 200, a pressurization valve 300, a piston 13, a medicine storage pipe 16 and a push rod 25, wherein the reversing valve 100 is arranged at one end of the cylinder 4, the control valve 200 is sleeved at one end of the cylinder 4 provided with the reversing valve 100, the medicine storage pipe 16 is fixed at one end of the cylinder 4 far away from the reversing valve 100 through an end cover 15, the pressurization valve 300 is sleeved at one end provided with the medicine storage pipe 16, the reversing valve 100 comprises a valve body 2, an air inlet air passage 1, an air outlet passage 19, a first air passage 3 and a second air passage 18 are arranged on the valve body 2, a rotary valve core 17 for controlling the on-off of the air inlet passage 1, the air outlet passage 19, the first air passage 3 and the second air passage 18 is arranged, The pressure increasing valve 300 comprises a first push plate 10, a second push plate 11, a second core sleeve 14, a pressurizing chamber 21 and a reset chamber 23, the pressurizing chamber 21 and the reset chamber 23 are divided by the first push plate 10, the second push plate 11 is arranged in the second core sleeve 14, and the first push plate 10 and the second push plate 11 are connected through a connecting rod 22; the pressurizing chamber 21 is communicated with the first vent pipe 5 through the second vent pipe 20, the resetting chamber 23 is communicated with the third vent pipe 24, the first vent pipe 5 is communicated with the first air passage 3, the resetting chamber 23 is communicated with the second air passage 18 through the third vent pipe 24, the second push plate 11 pushes the piston 13 arranged in the second core sleeve 14 through the liquid medium 12, the piston 13 abuts against one end of the push rod 25, and the other end of the push rod 25 is arranged in the medicine storage pipe 16. The pipeline for the high-pressure gas to enter can be easily controlled through the reversing valve 100, and the reciprocating motion of the piston 13 can be easily realized. The external air pressure is greatly improved after being boosted by the booster valve 300, the injection work can be well completed, and the invention has simple structure and is convenient for popularization and implementation.
According to the embodiment of the invention, two channels are formed on the rotary valve core 17, the two channels are communicated with the air inlet channel 1, the air outlet channel 19, the first air channel 3 and the second air channel 18 through the rotation of the rotary valve core 17, the air inlet channel 1, the air outlet channel 19, the first air channel 3 and the second air channel 18 are communicated with a space for accommodating the rotary valve core 17, the air inlet channel 1 and the first air channel 3, the air outlet channel 19 and the second air channel 18, the air inlet channel 1 and the second air channel 18, the air outlet channel 19 and the first air channel 3 can be communicated through the rotary valve core 17, the air inlet channel 1 is communicated with the first air channel 3 when the first air chamber admits air, and the air outlet channel 19 is communicated with the second air; when air is fed into the second air chamber, the air inlet passage 1 is communicated with the second air passage 18, and the air outlet passage 19 is communicated with the first air passage 3.
The control valve 200 of the embodiment of the invention comprises a first core sleeve 8 and a first valve core 6 sleeved in the first core sleeve 8, wherein a first vent pipe 5, a second vent pipe 20 and a third vent pipe 24 are arranged on the first core sleeve 8, and the first valve core 6 controls the communication of the first vent pipe 5 and the second vent pipe 20; a stop block 9 is arranged at one end of the first core sleeve 8, which is far away from the reversing valve 100, a spring is arranged between the stop block 9 and the first valve core 6, and the first valve core 6 is connected with a push key 8 arranged at the outer side of the cylinder 4; the first push plate 10 and the second push plate 11 are both disc-shaped, and the diameter of the first push plate 10 is larger than that of the second push plate 11. The purpose of pressurization is achieved through the difference of the diameters; the liquid medium 12 is distilled water or a biological saline.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.
Claims (5)
1. Take pressure boost function's automatic re-setting needleless injector, its characterized in that: including switching-over valve, barrel, control valve, pressure-increasing valve, piston, storage pipe and push rod, the one end of barrel sets up the switching-over valve, the barrel is provided with a pot head of switching-over valve and establishes the control valve, the barrel is kept away from the fixed storage pipe of end cover is passed through to the one end of switching-over valve, the pressure-increasing valve cover is established and is provided with the one end of storage pipe, the switching-over valve includes the valve body, it has air inlet passage, the air flue of giving vent to anger, first air flue and second air flue to open and close to open on the valve body, be provided with the rotatory case of control air inlet passage, air flue, first air flue and second air flue break-make in the valve body, first breather pipe, second breather pipe and third breather pipe have been seted up on the control valve, the pressure-increasing valve includes first push pedal, second core cover, pumping chamber and reset chamber, the pumping chamber, the second push plate is arranged in the second core sleeve, and the first push plate is connected with the second push plate through a connecting rod; the pressurizing chamber is communicated with the first vent pipe through the second vent pipe, the resetting chamber is communicated with the third vent pipe, the first vent pipe is communicated with the first air passage, the resetting chamber is communicated with the second air passage through the third vent pipe, the second push plate pushes the piston arranged in the second core sleeve through a liquid medium, the piston abuts against one end of the push rod, and the other end of the push rod is arranged in the medicine storage pipe.
2. The auto-reset needleless injector with pressurization function according to claim 1, wherein: two channels are formed in the rotary valve core and are communicated with the air inlet channel, the air outlet channel, the first air channel and the second air channel through rotation of the rotary valve core.
3. The auto-reset needleless injector with pressurization function according to claim 1, wherein: the control valve comprises a first core sleeve and a first valve core sleeved in the first core sleeve, wherein a first vent pipe, a second vent pipe and a third vent pipe are arranged on the first core sleeve, and the first valve core controls the communication of the first vent pipe and the second vent pipe.
4. The auto-reset needleless injector with pressurization function according to claim 3, wherein: and a stop block is arranged at one end of the first core sleeve, which is far away from the reversing valve, a spring is arranged between the stop block and the first valve core, and the first valve core is connected with a push key arranged at the outer side of the cylinder body.
5. The auto-reset needleless injector with pressurization function according to claim 1, wherein: the first push plate and the second push plate are both disc-shaped, and the diameter of the first push plate is larger than that of the second push plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611069722.8A CN107050580B (en) | 2016-11-28 | 2016-11-28 | Automatic reset needleless injector with pressurization function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611069722.8A CN107050580B (en) | 2016-11-28 | 2016-11-28 | Automatic reset needleless injector with pressurization function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107050580A CN107050580A (en) | 2017-08-18 |
| CN107050580B true CN107050580B (en) | 2019-12-31 |
Family
ID=59618403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611069722.8A Expired - Fee Related CN107050580B (en) | 2016-11-28 | 2016-11-28 | Automatic reset needleless injector with pressurization function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107050580B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110279914A (en) * | 2019-08-09 | 2019-09-27 | 江苏丞宇米特医疗科技有限公司 | Powder charge multiple injection needleless injector |
| CN111097083A (en) * | 2019-10-08 | 2020-05-05 | 重庆日日新网络科技有限责任公司 | Special needleless injector for beauty treatment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1678362A (en) * | 2002-06-28 | 2005-10-05 | 特克法马许可公司 | Product distribution device with rapid piston rod resetting |
| EP2218473A1 (en) * | 2009-02-11 | 2010-08-18 | Nils Leuzinger | Injection device with pressure dampening for the injection of a fluid |
| CN103961768A (en) * | 2014-04-24 | 2014-08-06 | 江西三鑫医疗科技股份有限公司 | Pneumatic needleless injector |
| CN104208777A (en) * | 2014-08-21 | 2014-12-17 | 张亚平 | Aerodynamic safety injection syringe |
| CN104399155A (en) * | 2014-11-21 | 2015-03-11 | 肖雅俊 | Pneumatic continuous needle-free syringe adopting control of pneumatically-controlled slide column valve |
| CN106109052A (en) * | 2016-08-23 | 2016-11-16 | 徐俊鸽 | A kind of needleless injector for animals |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5730723A (en) * | 1995-10-10 | 1998-03-24 | Visionary Medical Products Corporation, Inc. | Gas pressured needle-less injection device and method |
-
2016
- 2016-11-28 CN CN201611069722.8A patent/CN107050580B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1678362A (en) * | 2002-06-28 | 2005-10-05 | 特克法马许可公司 | Product distribution device with rapid piston rod resetting |
| EP2218473A1 (en) * | 2009-02-11 | 2010-08-18 | Nils Leuzinger | Injection device with pressure dampening for the injection of a fluid |
| CN103961768A (en) * | 2014-04-24 | 2014-08-06 | 江西三鑫医疗科技股份有限公司 | Pneumatic needleless injector |
| CN104208777A (en) * | 2014-08-21 | 2014-12-17 | 张亚平 | Aerodynamic safety injection syringe |
| CN104399155A (en) * | 2014-11-21 | 2015-03-11 | 肖雅俊 | Pneumatic continuous needle-free syringe adopting control of pneumatically-controlled slide column valve |
| CN106109052A (en) * | 2016-08-23 | 2016-11-16 | 徐俊鸽 | A kind of needleless injector for animals |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107050580A (en) | 2017-08-18 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Luo Wei Inventor after: Yu Yao Inventor after: Wang Lin Inventor after: Chen Xiaoqian Inventor before: Chen Xiaoqian |
|
| CB03 | Change of inventor or designer information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20191203 Address after: 116000 No. 467, Shahekou, Dalian District, Liaoning, Zhongshan Road Applicant after: The Second Affiliated Hospital Of Dalian Medical University Address before: No.9, Baibang entrepreneurship service center, No.11, Tianshui Road, Luyang District, Hefei City, Anhui Province# Applicant before: Hefei hearing Mdt InfoTech Ltd |
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| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191231 Termination date: 20201128 |
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| CF01 | Termination of patent right due to non-payment of annual fee |