CN105498046A - Pneumatic needleless injector - Google Patents
Pneumatic needleless injector Download PDFInfo
- Publication number
- CN105498046A CN105498046A CN201610019472.0A CN201610019472A CN105498046A CN 105498046 A CN105498046 A CN 105498046A CN 201610019472 A CN201610019472 A CN 201610019472A CN 105498046 A CN105498046 A CN 105498046A
- Authority
- CN
- China
- Prior art keywords
- piston
- valve body
- injection
- spool
- steel cylinder
- 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 20
- 239000007924 injection Substances 0.000 claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 239000003814 drug Substances 0.000 claims abstract description 15
- 238000013016 damping Methods 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 229960005486 vaccine Drugs 0.000 claims abstract description 4
- 229940079593 drug Drugs 0.000 claims description 11
- 238000003825 pressing Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000004146 energy storage Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 8
- 239000000047 product Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 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, in particular to a pneumatic needleless injector. The pneumatic needleless injector comprises a cylinder and a needleless medicine storage tube installed at the front end of the cylinder and used for containing an injection or vaccine. An end cover is arranged at the tail end of the cylinder. A power cavity used for storing a small disposable pressure storage steel bottle, a control device used for controlling the injector to work, an energy storage cavity, a middle cover, a sealing damping device, a piston and a piston push rod are sequentially arranged in the cylinder from the tail end to the front end. A rubber piston is connected to the piston push rod and located in the needleless medicine storage tube. The control device comprises a button switch, a valve body, a valve element and a spring, and a safety device is arranged on the button switch and used for preventing misoperation of a user. In the injection process, the safety device is removed, the switch is pressed, and then injection operation can be carried out. The 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 gas-driven needle-less syringe 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 gas-driven needle-less syringe, safety cost is low, injection efficiency is high, reliability is high.
To achieve these goals, present invention employs following technical scheme: a kind of gas-driven needle-less syringe, cylindrical shell, be installed on described cylindrical shell front end and for the needleless drug storage pipe of splendid attire injection or vaccine; The end of described cylindrical shell is end cap; Be 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; Described control device comprises press button, valve body, spool, spring composition, and there are safety at described press button place.
Wherein, in described valve body, have a through hole of pressing small steel cylinder to be connected with disposable storage, and valve body is provided with in disposable storage pressure small steel cylinder side and its connector and punctures 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 piston is provided with sealing damping unit near middle cover side.
More optimizedly, described middle cover center has a taper hole.
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;
Structure is simple, and easy and simple to handle, 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.
A kind of gas-driven needle-less syringe as shown in Figure 1, comprises cylindrical shell 2, is located at 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; Be followed successively by the power cavity 7 of placement disposable storage pressure small steel cylinder 10, control device, energy-storing chamber 11, middle cover 5, sealing damping unit 12, piston 4, piston push rod 3 from end to front end in described cylindrical shell 2; 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 form, and there are safety 8 at described press button 9 place, in order to prevent user misoperation.
Have a through hole 62 of pressing small steel cylinder 10 to be connected with disposable storage in described valve body 6, and valve body 6 is provided with in disposable storage pressure small steel cylinder 10 side and its connector and punctures 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.
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 piston push rod 3 action, 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 (4)
1. a gas-driven needle-less syringe, 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);
Be followed successively by the power cavity (7) of disposable storage pressure small steel cylinder (10) of placement, control device, energy-storing chamber (11), middle cover (5), sealing damping unit (12), piston (4), piston push rod (3) from end to front end in described cylindrical shell (2);
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) composition, and there are safety (8) at described press button (9) place.
2. a kind of gas-driven needle-less syringe according to claim 1, it is characterized in that: in described valve body (6), have a through hole (62) of pressing small steel cylinder (10) to be connected with disposable storage, and valve body (6) is provided with and punctures the device that small steel cylinder (10) are pressed in disposable storage in disposable storage pressure small steel cylinder (10) side and its connector; 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).
3. a kind of gas-driven needle-less syringe according to claim 1, is characterized in that: described piston (4) is upper is provided with sealing damping unit (12) near middle cover side.
4. a kind of gas-driven needle-less syringe according to claim 1, is characterized in that: described middle cover (5) center has a taper hole (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610019472.0A CN105498046A (en) | 2016-01-13 | 2016-01-13 | Pneumatic needleless injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610019472.0A CN105498046A (en) | 2016-01-13 | 2016-01-13 | Pneumatic needleless injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105498046A true CN105498046A (en) | 2016-04-20 |
Family
ID=55706589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610019472.0A Pending CN105498046A (en) | 2016-01-13 | 2016-01-13 | Pneumatic needleless injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105498046A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105498044A (en) * | 2016-01-13 | 2016-04-20 | 北京步腾医学科技有限公司 | Disposable pneumatic needleless injector and using method thereof |
| 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 |
| CN108784884A (en) * | 2018-06-19 | 2018-11-13 | 丁文铃 | A kind of herding needleless injector |
| CN108888835A (en) * | 2018-09-17 | 2018-11-27 | 上海市东方医院 | Safety injector |
| CN112451803A (en) * | 2020-11-23 | 2021-03-09 | 吉林大学第一医院 | Drug syringe for rescue |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86206138U (en) * | 1986-08-20 | 1987-05-27 | 中国人民解放军第5704工厂 | Syringe without needle |
| US20040055662A1 (en) * | 2000-12-21 | 2004-03-25 | Arnold Neracher | Injection device with re-usable pressure generating means |
| CN102499787A (en) * | 2011-11-18 | 2012-06-20 | 陈凯 | Split type needle-free injection system used for animal injection |
| CN103370092A (en) * | 2011-01-10 | 2013-10-23 | 周吉尼克斯股份有限公司 | Improved needle-free injectors |
| CN105498044A (en) * | 2016-01-13 | 2016-04-20 | 北京步腾医学科技有限公司 | Disposable pneumatic needleless injector and using method thereof |
| CN205460226U (en) * | 2016-01-13 | 2016-08-17 | 北京步腾医学科技有限公司 | Disposable pneumatic needleless injector |
| CN205814806U (en) * | 2016-01-13 | 2016-12-21 | 北京步腾医学科技有限公司 | A kind of gas-driven needle-less syringe |
-
2016
- 2016-01-13 CN CN201610019472.0A patent/CN105498046A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86206138U (en) * | 1986-08-20 | 1987-05-27 | 中国人民解放军第5704工厂 | Syringe without needle |
| 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 |
| CN102499787A (en) * | 2011-11-18 | 2012-06-20 | 陈凯 | Split type needle-free injection system used for animal injection |
| CN105498044A (en) * | 2016-01-13 | 2016-04-20 | 北京步腾医学科技有限公司 | Disposable pneumatic needleless injector and using method thereof |
| CN205460226U (en) * | 2016-01-13 | 2016-08-17 | 北京步腾医学科技有限公司 | Disposable pneumatic needleless injector |
| CN205814806U (en) * | 2016-01-13 | 2016-12-21 | 北京步腾医学科技有限公司 | A kind of gas-driven needle-less syringe |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105498044A (en) * | 2016-01-13 | 2016-04-20 | 北京步腾医学科技有限公司 | Disposable pneumatic needleless injector and using method thereof |
| 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 |
| CN108784884A (en) * | 2018-06-19 | 2018-11-13 | 丁文铃 | A kind of herding needleless injector |
| CN108888835A (en) * | 2018-09-17 | 2018-11-27 | 上海市东方医院 | Safety injector |
| CN112451803A (en) * | 2020-11-23 | 2021-03-09 | 吉林大学第一医院 | Drug syringe for rescue |
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