CN105498044A - Disposable pneumatic needleless injector and using method thereof - Google Patents
Disposable pneumatic needleless injector and using method thereof Download PDFInfo
- Publication number
- CN105498044A CN105498044A CN201610019357.3A CN201610019357A CN105498044A CN 105498044 A CN105498044 A CN 105498044A CN 201610019357 A CN201610019357 A CN 201610019357A CN 105498044 A CN105498044 A CN 105498044A
- Authority
- CN
- China
- Prior art keywords
- disposable
- piston
- needleless injector
- needleless
- steel cylinder
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- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 238000002347 injection Methods 0.000 claims abstract description 22
- 239000007924 injection Substances 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 239000003814 drug Substances 0.000 claims abstract description 18
- 238000013016 damping Methods 0.000 claims abstract description 8
- 229960005486 vaccine Drugs 0.000 claims abstract description 4
- 229940079593 drug Drugs 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 4
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims description 2
- 235000011613 Pinus brutia Nutrition 0.000 claims description 2
- 241000018646 Pinus brutia Species 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000004146 energy storage Methods 0.000 abstract 1
- 239000000047 product Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- NOESYZHRGYRDHS-UHFFFAOYSA-N insulin Chemical compound N1C(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(NC(=O)CN)C(C)CC)CSSCC(C(NC(CO)C(=O)NC(CC(C)C)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CCC(N)=O)C(=O)NC(CC(C)C)C(=O)NC(CCC(O)=O)C(=O)NC(CC(N)=O)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CSSCC(NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2C=CC(O)=CC=2)NC(=O)C(CC(C)C)NC(=O)C(C)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2NC=NC=2)NC(=O)C(CO)NC(=O)CNC2=O)C(=O)NCC(=O)NC(CCC(O)=O)C(=O)NC(CCCNC(N)=N)C(=O)NCC(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC(O)=CC=3)C(=O)NC(C(C)O)C(=O)N3C(CCC3)C(=O)NC(CCCCN)C(=O)NC(C)C(O)=O)C(=O)NC(CC(N)=O)C(O)=O)=O)NC(=O)C(C(C)CC)NC(=O)C(CO)NC(=O)C(C(C)O)NC(=O)C1CSSCC2NC(=O)C(CC(C)C)NC(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CC(N)=O)NC(=O)C(NC(=O)C(N)CC=1C=CC=CC=1)C(C)C)CC1=CN=CN1 NOESYZHRGYRDHS-UHFFFAOYSA-N 0.000 description 2
- 238000007920 subcutaneous administration Methods 0.000 description 2
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 206010022076 Injection site infection Diseases 0.000 description 1
- 102000004877 Insulin Human genes 0.000 description 1
- 108090001061 Insulin Proteins 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 229940125396 insulin Drugs 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000007921 spray 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
- A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
- A61M5/2053—Media being expelled from injector by pressurised fluid or vacuum
-
- 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
- A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
- A61M2005/2026—Semi-automatic, e.g. user activated piston is assisted by additional source of energy
-
- 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
- A61M2205/19—Constructional features of carpules, syringes or blisters
Abstract
The invention relates to the technical field of injectors, and particularly discloses a disposable pneumatic needleless injector and a using method thereof. The disposable pneumatic needleless injector comprises a cylinder and a needleless medicine storage tube installed at the front end of the cylinder and used for containing injection or a vaccine; an end cover is arranged at the tail end of the cylinder, and the cylinder is internally provided with a power cavity for storing a small disposable steel bottle, a control device used for controlling the injector to work, an energy storage cavity, a middle cover, a seal damping device, a piston and a piston push rod in sequence from the tail end to the front end; the piston push rod is connected with a rubber piston, and the rubber piston is located in the needleless medicine storage tube; the control device comprises a button switch, a valve body, a valve core and a spring, and a safety device is arranged on the button switch and used for preventing misoperation of a user. When the injector is used for injection, the safety device is removed, and the button switch is pressed to conduct injection operation. The disposable pneumatic needleless injector has the advantages that the structure of a triggering and pushing device is greatly simplified, operation is convenient, cost is low, injection efficiency is high, and reliability is high.
Description
Technical field
The present invention relates to injector technology field, refer to a kind of disposable pneumatic needleless injector and using method thereof especially.
Background technology
Traditional syringe is by a kind of injection system of rustless steel syringe needle by infusion of medicine human body, this injection system is easy to cause local skin to damage, hemorrhage, the situation such as swell and ache, not only pain is remarkable, and make most of patients (especially infant) produce fear, also likely cause the danger of injection site infection.Needleless injection techniques utilizes high-pressure spray principle, makes medicinal liquid form thinner liquid stream, and moment transdermal arrival is subcutaneous, because the change of injection principle, medicinal liquid is at subcutaneous Dispersed precipitate, and onset time is faster, drug absorption rate is higher, can avoid the problems referred to above completely.
According to incompletely statistics, there are tens of manufacturers at present abroad producing nearly hundred kinds of not needleless injector products in specie, have progressively been applied in clinical treatment and family health care in this technology of developed country.The research of China to needleless injection techniques is still in the starting stage, only has only a few Ji Jia domestic enterprise can produce this series products so far.
At present needleless injector kind is on the market comparatively single, and be mainly used for the needleless device of injection of insulin, it drives power mainly to adopt spring powered, but plastic injection quality is compared external business men equipment and also had a certain distance, and while price comparison is high.
Receptance not high reason in current needleless injector market is caused to mainly contain: syringe price is too expensive, too low concerning cost performance ordinary populace; The performance factor of power spring causes injection pressure not enough, and cannot inject by expection requirement, the reliability neither one of injection ensures preferably.
Summary of the invention
The object of this invention is to provide a kind of disposable pneumatic needleless injector and using method thereof, cost is low, injection efficiency is high, reliability is high.
To achieve these goals, present invention employs following technical scheme: disposable pneumatic needleless injector, comprise cylindrical shell, be installed on the front end of described cylindrical shell and for the needleless drug storage pipe of splendid attire injection or vaccine; The end of described cylindrical shell is end cap; From being followed successively by power cavity, control device, energy-storing chamber, middle cover, sealing damping unit, piston, the piston push rod of placing disposable storage pressure small steel cylinder from end to front end in described cylindrical shell; Described piston push rod is connected with rubber piston, and described rubber piston is positioned at described needleless drug storage pipe.
Wherein, described control device comprises press button, valve body, spool, spring, and described press button place is provided with safety.
Wherein, have in described valve body one with store up the through hole of press small steel cylinder to be connected, and valve body is pressed in small steel cylinder side and its connector to be provided with near disposable storage and is punctured the device that small steel cylinder is pressed in disposable storage; Described valve body is used for cutting off the spool of air-flow break-make built with one, and spool is connected with described press button; Described spool has a circular hole parallel with described through hole.
More optimizedly, described middle cover center has a taper hole.
More optimizedly, described piston is provided with sealing damping unit near middle cover side.
Use the method for disposable pneumatic needleless injector, comprise the following steps:
S1: disposable storage pressure small steel cylinder is screwed into power cavity, after being tightened by disposable storage pressure small steel cylinder, pine is a bit again;
S2: be then tightened on the front end of described cylindrical shell by needleless drug storage pipe, now syringe is in injectable state, in order to prevent the situations such as maloperation, should make syringe safety reliably be in safety position;
Safety are removed, are pressed the button switch, just can carry out injection operation by S3: when injecting, and are discardable syringe after having injected.
Beneficial effect of the present invention is: after adopting said structure, power source adopts gases at high pressure power source to provide dynamic impact problem, percussion mechanism adopts piston, the control that trigger control device adopts discharge cock to realize whole equipment work, medicine loads and the external needleless drug storage pipe of mjector employing self not encapsulated drug.
The present invention compares existing market needleless injector following advantage:
Reliably injection effect, ensures good drug absorption effect;
Because this syringe is disposable products, forbidden so there is not dynamic Control, and then affected the situation of injector to inject effect, so one can be had to ensure reliably to the injection effect of syringe;
Lower cost, has the larger market advantage, and market acceptance is comparatively large, is conducive to the universal of needleless injector.
Accompanying drawing explanation
In order to be illustrated more clearly in embodiment of the present invention technical scheme, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only that the present invention is in order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below the accompanying drawing used required in p-embodiment or description of the prior art is briefly described, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the present invention's state to be injected;
Fig. 2 is the structural representation of the present invention's inject state.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Disposable pneumatic needleless injector as shown in Figure 1, comprises cylindrical shell 2, is installed on the front end of described cylindrical shell 2 and for the needleless drug storage pipe 1 of splendid attire injection or vaccine; The end of described cylindrical shell 2 is end cap 13; Press the power cavity 7 of small steel cylinder 10, control device, energy-storing chamber 11, middle cover 5 from being followed successively by the disposable storage of placement from end to front end in described cylindrical shell 2, seal damping unit 12, piston 4, piston push rod 3; Described piston push rod 3 is connected with rubber piston 31, and described rubber piston 31 is positioned at described needleless drug storage pipe 1.
Described control device comprises press button 9, valve body 6, spool 63, spring 61, and described press button 9 place is provided with safety 8.Have in described valve body 6 one with store up the through hole 62 of press small steel cylinder 10 to be connected, and valve body 6 is pressed in small steel cylinder 10 side and its connector to be provided with near disposable storage and is punctured the device that small steel cylinder 10 is pressed in disposable storage; Described valve body 6 is used for cutting off the spool 63 of air-flow break-make built with one, and spool 63 is connected with described press button 9; Described spool 63 has a circular hole 64 parallel with described through hole 62.
More optimizedly, described middle cover 5 center has a taper hole 51.Described piston 4 is provided with sealing damping unit 12 near middle cover 5 side.
Disposable storage pressure small steel cylinder 10 is screwed into power cavity 7, unscrew again a bit after steel cylinder is tightened by end cap 13, then needleless drug storage pipe 1 is tightened in the front end of described cylindrical shell 2, now syringe is in injectable state, in order to prevent the situations such as maloperation, syringe safety 8 should be made reliably to be in safety position; When injecting, safety 8 are removed, press the button switch 9, spool 63 is descending, and the gas in steel cylinder is through valve body 6, enter energy-storing chamber 11, shake off the taper hole 51 of damping through middle cover 5 after reaching certain pressure, promote piston 4 action at a high speed, and then the action of needleless drug storage pipe piston push rod 3, just can carry out injection operation, be discardable syringe after having injected.
In whole equipment, the selection of high voltage power source of the gas has a direct impact for the serviceability of equipment and reliability, safety, cost, consider Group-oriented of the present invention and market orientation, choose the standard of high-pressure air source: volume is little, safety is high, have larger storage pressure energy power, select accumulation of energy better performances for this reason, safe and reliable disposable storage pressure small steel cylinder 10 is used as power source, thus syringe cost can be made significantly to reduce.
This product is disposable products, so make every effort in equipment selection and structural design that structure is simple, safe and reliable, low cost all under the premise that security is guaranteed.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. disposable pneumatic needleless injector, is characterized in that: comprise cylindrical shell (2), be installed on the front end of described cylindrical shell (2) and for the needleless drug storage pipe (1) of splendid attire injection or vaccine;
The end of described cylindrical shell (2) is end cap (13);
Press the power cavity (7) of small steel cylinder (10), control device, energy-storing chamber (11), middle cover (5) from being followed successively by the disposable storage of placement from end to front end in described cylindrical shell (2), seal damping unit (12), piston (4), piston push rod (3);
Described piston push rod (3) is connected with rubber piston (31), and described rubber piston (31) is positioned at described needleless drug storage pipe (1).
2. disposable pneumatic needleless injector according to claim 1, it is characterized in that: described control device comprises press button (9), valve body (6), spool (63), spring (61), and described press button (9) place is provided with safety (8).
3. disposable pneumatic needleless injector according to claim 2, it is characterized in that: have in described valve body (6) one with store up the through hole (62) of press small steel cylinder (10) to be connected, and valve body (6) is pressed in small steel cylinder (10) side and its connector to be provided with near disposable storage and is punctured the device that small steel cylinder (10) are pressed in disposable storage; Described valve body (6) is used for cutting off the spool (63) of air-flow break-make built with one, and spool (63) is connected with described press button (9); Described spool (63) has a circular hole (64) parallel with described through hole (62).
4. disposable pneumatic needleless injector according to claim 1, is characterized in that: described middle cover (5) center has a taper hole (51).
5. disposable pneumatic needleless injector according to claim 1, is characterized in that: described piston (4) is upper is provided with sealing damping unit (12) near middle cover (5) side.
6. use the method for the disposable pneumatic needleless injector described in any one of claim 1 ~ 5, comprise the following steps:
S1: disposable storage pressure small steel cylinder (10) is screwed into power cavity (7), after disposable storage pressure small steel cylinder (10) being tightened, pine is a bit again;
S2: then needleless drug storage pipe (1) is tightened on the front end of described cylindrical shell (2), now syringe is in injectable state, in order to prevent the situations such as maloperation, syringe safety (8) should be made reliably to be in safety position;
Safety (8) are removed, are pressed the button switch (9), just can carry out injection operation by S3: when injecting, and are discardable syringe after having injected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610019357.3A CN105498044A (en) | 2016-01-13 | 2016-01-13 | Disposable pneumatic needleless injector and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610019357.3A CN105498044A (en) | 2016-01-13 | 2016-01-13 | Disposable pneumatic needleless injector and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105498044A true CN105498044A (en) | 2016-04-20 |
Family
ID=55706587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610019357.3A Pending CN105498044A (en) | 2016-01-13 | 2016-01-13 | Disposable pneumatic needleless injector and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105498044A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105498046A (en) * | 2016-01-13 | 2016-04-20 | 北京步腾医学科技有限公司 | Pneumatic needleless injector |
| CN105833393A (en) * | 2016-05-11 | 2016-08-10 | 内蒙古华希生物科技有限公司 | Needle-free injection rabies virus vaccine system and application |
| CN105854010A (en) * | 2016-05-11 | 2016-08-17 | 长春海基亚生物技术股份有限公司 | Hand-foot-mouth disease vaccine system for needleless injection and application |
| CN105903010A (en) * | 2016-05-11 | 2016-08-31 | 内蒙古华希生物科技有限公司 | Needleless injection foot-and-mouth disease vaccine system and application |
| CN105999258A (en) * | 2016-05-11 | 2016-10-12 | 内蒙古华希生物科技有限公司 | Pig virus vaccine needle-free injection system and application |
| CN105999253A (en) * | 2016-05-11 | 2016-10-12 | 内蒙古华希生物科技有限公司 | Brucellosis vaccine needle-free injection system and application |
| CN106668992A (en) * | 2016-11-28 | 2017-05-17 | 合肥讯创信息科技有限公司 | Pressurizing needle-free injection device |
| CN108744164A (en) * | 2018-06-29 | 2018-11-06 | 冯少为 | Continuously adjustable gas-driven needle-less injection instrument |
| CN109328081A (en) * | 2016-07-07 | 2019-02-12 | 艾斯曲尔医疗公司 | Medicine delivery device with pneumatic power unit |
| CN110115789A (en) * | 2018-02-07 | 2019-08-13 | 株式会社Ptech | Painless injection device |
| CN112657018A (en) * | 2020-12-16 | 2021-04-16 | 南京康鼎新材料科技有限公司 | Medical composite tubing coated by nylon extrusion and injection tube device with medical composite tubing |
| CN112755333A (en) * | 2021-01-07 | 2021-05-07 | 陕西安信医学技术开发有限公司 | Needleless atomizing injector |
| CN115282406A (en) * | 2022-08-15 | 2022-11-04 | 武汉理工大学 | Needleless injector using hydrogen detonation as driving force |
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| US20040055662A1 (en) * | 2000-12-21 | 2004-03-25 | Arnold Neracher | Injection device with re-usable pressure generating means |
| CN103370092A (en) * | 2011-01-10 | 2013-10-23 | 周吉尼克斯股份有限公司 | Improved needle-free injectors |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105498046A (en) * | 2016-01-13 | 2016-04-20 | 北京步腾医学科技有限公司 | Pneumatic needleless injector |
| CN105833393A (en) * | 2016-05-11 | 2016-08-10 | 内蒙古华希生物科技有限公司 | Needle-free injection rabies virus vaccine system and application |
| CN105854010A (en) * | 2016-05-11 | 2016-08-17 | 长春海基亚生物技术股份有限公司 | Hand-foot-mouth disease vaccine system for needleless injection and application |
| CN105903010A (en) * | 2016-05-11 | 2016-08-31 | 内蒙古华希生物科技有限公司 | Needleless injection foot-and-mouth disease vaccine system and application |
| CN105999258A (en) * | 2016-05-11 | 2016-10-12 | 内蒙古华希生物科技有限公司 | Pig virus vaccine needle-free injection system and application |
| CN105999253A (en) * | 2016-05-11 | 2016-10-12 | 内蒙古华希生物科技有限公司 | Brucellosis vaccine needle-free injection system and application |
| CN109328081A (en) * | 2016-07-07 | 2019-02-12 | 艾斯曲尔医疗公司 | Medicine delivery device with pneumatic power unit |
| CN106668992A (en) * | 2016-11-28 | 2017-05-17 | 合肥讯创信息科技有限公司 | Pressurizing needle-free injection device |
| CN106668992B (en) * | 2016-11-28 | 2019-07-12 | 合肥讯创信息科技有限公司 | It is pressurized Needleless injection device |
| CN110115789A (en) * | 2018-02-07 | 2019-08-13 | 株式会社Ptech | Painless injection device |
| CN110115789B (en) * | 2018-02-07 | 2021-11-30 | 株式会社Ptech | Painless injection device |
| CN108744164A (en) * | 2018-06-29 | 2018-11-06 | 冯少为 | Continuously adjustable gas-driven needle-less injection instrument |
| CN112657018A (en) * | 2020-12-16 | 2021-04-16 | 南京康鼎新材料科技有限公司 | Medical composite tubing coated by nylon extrusion and injection tube device with medical composite tubing |
| CN112755333A (en) * | 2021-01-07 | 2021-05-07 | 陕西安信医学技术开发有限公司 | Needleless atomizing injector |
| CN112755333B (en) * | 2021-01-07 | 2022-05-31 | 陕西安信医学技术开发有限公司 | Needleless atomizing injector |
| CN115282406A (en) * | 2022-08-15 | 2022-11-04 | 武汉理工大学 | Needleless injector using hydrogen detonation as driving force |
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