CN109999277A - A kind of low pressure needleless injector - Google Patents
A kind of low pressure needleless injector Download PDFInfo
- Publication number
- CN109999277A CN109999277A CN201910250194.3A CN201910250194A CN109999277A CN 109999277 A CN109999277 A CN 109999277A CN 201910250194 A CN201910250194 A CN 201910250194A CN 109999277 A CN109999277 A CN 109999277A
- Authority
- CN
- China
- Prior art keywords
- low pressure
- injection
- needleless injector
- gun
- pressure needleless
- 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.)
- Pending
Links
- 238000002347 injection Methods 0.000 claims abstract description 40
- 239000007924 injection Substances 0.000 claims abstract description 40
- 239000003814 drug Substances 0.000 abstract description 8
- 238000010521 absorption reaction Methods 0.000 abstract description 5
- 241000282414 Homo sapiens Species 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 3
- 210000004872 soft tissue Anatomy 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 description 7
- 239000002184 metal Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 208000031513 cyst Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000007920 subcutaneous administration Methods 0.000 description 1
- 230000000451 tissue damage Effects 0.000 description 1
- 231100000827 tissue damage Toxicity 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31533—Dosing mechanisms, i.e. setting a dose
- A61M5/31545—Setting modes for dosing
- A61M5/31548—Mechanically operated dose setting member
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
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 present invention discloses a kind of low pressure needleless injector, belongs to medical appliance field.The low pressure needleless injector includes filling gun, and the air source input end of the filling gun is connected to by hose with pneumatic shuttle；Injection head has been removably installed on the injection end connector of the filling gun.The low pressure needleless injector of this practical new offer is using compressed gas as power, medicament is set to accelerate to 200-300 meters of speed per second, and form one extremely small liquid flow, readily penetrate through skin surface, it is spread in soft tissue, increases absorption area, improve assimilation effect, Needleless injection avoids syringe needle fracture in human body, and greatly reduces pain.
Description
Technical Field
The invention relates to the technical field of medical appliances, in particular to a low-pressure needleless injector.
Background
The traditional syringe is an injection mode for injecting medicines into a human body through a stainless steel needle, and the injection mode easily causes subcutaneous and muscle tissue damage, produces cysts and even infection, is not only painful and uncomfortable for patients, but also causes fear for most patients (especially infants). The accidental breakage of the needle is easy to happen in the injection process, and a large amount of medicine injected through the metal needle is concentrated at one point, so that the medicine is formed into a lump at the injection part and is not easy to absorb.
160 hundred million needles are treated every year all over the world, and sharp metal needles are combined with various components such as rubber pistons, plastic materials and the like, so that the environment pollution and the resource waste are caused to human beings.
Disclosure of Invention
The invention aims to provide a low-pressure needleless injector to solve the problems that a medicament injected by a traditional injector is difficult to absorb and a patient feels strong pain.
In order to solve the above technical problem, the present invention provides a low pressure needleless injector, comprising:
the air source input end of the injection gun is communicated with the air pressure device through a hose;
the injection end connector of the injection gun is detachably provided with an injection head.
Optionally, the low-pressure needleless injector further comprises a pressure regulating device installed on the air pressure device, and the air source input end is communicated with the pressure regulating device through the hose.
Optionally, the injection end of the injection gun comprises a barrel, a pinhole bracket, a hole nut and a needle joint nut; wherein,
the pinhole bracket is positioned in the gun barrel and is fixed through a hole nut; the pin joint nut is rotationally fixed on the hole nut.
Optionally, the side of the barrel is provided with an opening for connecting with an injection cylinder.
Optionally, the injection gun is further provided with a dose adjustment device for adjusting the injected dose.
Optionally, the pneumatic device comprises a gas cylinder and an air compressor.
The low-pressure needleless injector comprises an injection gun, wherein the air source input end of the injection gun is communicated with an air pressure device through a hose; the injection end connector of the injection gun is detachably provided with an injection head. The low-pressure needleless injector provided by the utility model takes compressed gas as power, so that the medicine is accelerated to the speed of 200 plus one meter per second and 300 meters, and an extremely tiny liquid flow is formed, quickly penetrates through the surface layer of the skin, is diffused in soft tissues, increases the absorption area, improves the absorption effect, avoids the needle head from being broken in the human body by needleless injection, and greatly reduces pain.
Drawings
FIG. 1 is a schematic view of a low pressure needleless injector provided by the present invention;
fig. 2 is a schematic view of the exploded structure of the injection end of the gun.
Detailed Description
The invention provides a low-pressure needleless injector which is further described in detail with reference to the accompanying drawings and specific embodiments. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
Example one
The invention provides a low-pressure needleless injector, which comprises an injection gun 1, wherein an air source input end 11 of the injection gun 1 is communicated with an air pressure device 3 through a hose 2; an injection head 13 is detachably arranged on the joint of the injection end 12 of the injection gun 1. The air pressure device 3 comprises an air bottle and an air compressor.
Further, the low-pressure needleless injector further comprises a pressure regulating device 4 arranged on the air pressure device 3, and the air source input end 11 is communicated with the pressure regulating device 4 through the hose 2. The pressure regulating device 4 is used for regulating the air pressure of the air pressure device 3.
Specifically, please refer to fig. 2, which is a schematic diagram of an exploded structure of the injection end 12 of the injection gun 1. The injection end 12 of the injection gun 1 comprises a barrel 121, a needle hole bracket 122, a hole nut 123 and a needle joint nut 124; wherein the pinhole bracket 122 is located in the barrel 121 and is fixed by a hole nut 123; the pin connector nut 124 is rotatably fixed to the hole nut 123. Specifically, the side of the barrel 121 is provided with an opening for connecting an injection cartridge. The gun 1 is further provided with a dose setting device 14 for setting the dose to be injected.
The low-pressure needleless injector provided by the utility model takes compressed gas as power, so that the medicine is accelerated to the speed of 200 plus 300 meters per second, and an extremely tiny liquid flow is formed, rapidly penetrates through the surface layer of the skin and is diffused in soft tissues, the absorption area is increased, and the absorption effect is improved; the pressure can be controlled by the pressure regulating device, the injection pressure can be changed at will, and the medicament can be accurately reached to a target part. Needleless injection avoids needle breakage in the body and greatly reduces pain.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.
Claims (6)
1. A low pressure needleless injector comprising:
the air source input end of the injection gun is communicated with the air pressure device through a hose;
the injection end connector of the injection gun is detachably provided with an injection head.
2. The low pressure needleless injector of claim 1 further comprising a pressure regulator mounted on said air pressure device, said air supply input communicating with said pressure regulator through said hose.
3. The low pressure needleless injector of claim 1 wherein the injection end of the injection gun comprises a barrel, a needle mount, a port nut, and a needle union nut; wherein,
the pinhole bracket is positioned in the gun barrel and is fixed through a hole nut; the pin joint nut is rotationally fixed on the hole nut.
4. The low pressure needleless injector of claim 3 wherein the barrel is provided with an opening in a side thereof for connection to a syringe.
5. The low pressure needleless injector of claim 1 wherein the gun is further provided with a dose adjustment means for adjusting the dose injected.
6. The low pressure needleless injector of claim 1 wherein said pneumatic means comprises a gas cylinder and an air compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910250194.3A CN109999277A (en) | 2019-03-29 | 2019-03-29 | A kind of low pressure needleless injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910250194.3A CN109999277A (en) | 2019-03-29 | 2019-03-29 | A kind of low pressure needleless injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109999277A true CN109999277A (en) | 2019-07-12 |
Family
ID=67168907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910250194.3A Pending CN109999277A (en) | 2019-03-29 | 2019-03-29 | A kind of low pressure needleless injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109999277A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111388807A (en) * | 2020-04-07 | 2020-07-10 | 湖南省绿洲惠康发展有限公司 | Pneumatic needleless injector |
| CN112336949A (en) * | 2019-08-08 | 2021-02-09 | 武汉大学 | Pneumatic needleless injection driving air pressure switching device and using method thereof |
| CN114588409A (en) * | 2022-03-02 | 2022-06-07 | 苏州肯美特设备集成有限公司 | Low-pressure needle-free injection device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2689018A1 (en) * | 1992-03-25 | 1993-10-01 | Akra | Needleless injector for admin. of medicine etc. e.g. to children - has head with main tubular section containing plate with capillary hole(s) for injecting liquid in fine jet through skin |
| CN101024101A (en) * | 2006-02-20 | 2007-08-29 | 佛山特种医用导管有限责任公司 | Remain-type infusion device |
| US20140276651A1 (en) * | 2013-03-13 | 2014-09-18 | Joseph P. Schultz | Medical connector contamination prevention systems |
| CN205287124U (en) * | 2016-01-09 | 2016-06-08 | 太原市缔美源商贸有限公司 | Low -pressure air current is formula particle gun with higher speed |
| CN106344205A (en) * | 2016-10-31 | 2017-01-25 | 湖北省国融商贸有限公司 | Needle-free high-speed jet flow injection syringe |
| CN109432554A (en) * | 2018-11-19 | 2019-03-08 | 北京快舒尔医疗技术有限公司 | Injection head, injection head assembly and the needleless injector of needleless injector |
| CN210159035U (en) * | 2019-03-29 | 2020-03-20 | 南京市江宁医院 | Needleless injection system |
-
2019
- 2019-03-29 CN CN201910250194.3A patent/CN109999277A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2689018A1 (en) * | 1992-03-25 | 1993-10-01 | Akra | Needleless injector for admin. of medicine etc. e.g. to children - has head with main tubular section containing plate with capillary hole(s) for injecting liquid in fine jet through skin |
| CN101024101A (en) * | 2006-02-20 | 2007-08-29 | 佛山特种医用导管有限责任公司 | Remain-type infusion device |
| US20140276651A1 (en) * | 2013-03-13 | 2014-09-18 | Joseph P. Schultz | Medical connector contamination prevention systems |
| CN205287124U (en) * | 2016-01-09 | 2016-06-08 | 太原市缔美源商贸有限公司 | Low -pressure air current is formula particle gun with higher speed |
| CN106344205A (en) * | 2016-10-31 | 2017-01-25 | 湖北省国融商贸有限公司 | Needle-free high-speed jet flow injection syringe |
| CN109432554A (en) * | 2018-11-19 | 2019-03-08 | 北京快舒尔医疗技术有限公司 | Injection head, injection head assembly and the needleless injector of needleless injector |
| CN210159035U (en) * | 2019-03-29 | 2020-03-20 | 南京市江宁医院 | Needleless injection system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112336949A (en) * | 2019-08-08 | 2021-02-09 | 武汉大学 | Pneumatic needleless injection driving air pressure switching device and using method thereof |
| CN111388807A (en) * | 2020-04-07 | 2020-07-10 | 湖南省绿洲惠康发展有限公司 | Pneumatic needleless injector |
| CN114588409A (en) * | 2022-03-02 | 2022-06-07 | 苏州肯美特设备集成有限公司 | Low-pressure needle-free injection device |
| CN114588409B (en) * | 2022-03-02 | 2023-12-08 | 苏州肯美特设备集成股份有限公司 | Low-pressure needleless injection device |
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