CN105477749A - Disposable needle-free spring syringe - Google Patents
Disposable needle-free spring syringe Download PDFInfo
- Publication number
- CN105477749A CN105477749A CN201610020520.8A CN201610020520A CN105477749A CN 105477749 A CN105477749 A CN 105477749A CN 201610020520 A CN201610020520 A CN 201610020520A CN 105477749 A CN105477749 A CN 105477749A
- Authority
- CN
- China
- Prior art keywords
- piston
- switch
- cylindrical shell
- needleless
- storage assembly
- 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 17
- 239000007924 injection Substances 0.000 claims abstract description 17
- 239000003814 drug Substances 0.000 claims abstract description 16
- 229940079593 drug Drugs 0.000 claims description 11
- 239000012634 fragment Substances 0.000 claims description 9
- 230000008520 organization Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 4
- 229960005486 vaccine Drugs 0.000 claims description 4
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000010521 absorption reaction Methods 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
- 238000000034 method Methods 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
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 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
- 239000002244 precipitate Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel 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
- A61M2210/00—Anatomical parts of the body
- A61M2210/04—Skin
Abstract
The invention relates to the technical field of syringes, and specifically discloses a disposable needle-free spring syringe. The disposable needle-free spring syringe comprises a cylinder, a needle-free medicine storage assembly, a piston, a rear end cover and a spring arranged between the piston and the rear end cover. A piston push rod of the needle-free medicine storage assembly is arranged on the left side of the piston. A rubber piston is connected with the front end of the piston push rod and located in the needle-free medicine storage assembly. A control mechanism for keeping or changing the state of the piston is arranged on the left side of the piston and comprises a switch, an elastic piece and a rotation shaft. The upper portion of the switch is clamped on the cylinder so that the cylinder can act within the reasonable range, and the bottom of the switch is used for clamping the piston in the reset state. The elastic piece is located below the switch. A guard ring is arranged on the lower side of the switch and on the left side of the elastic piece, and therefore misoperation of users is prevented. The disposable needle-free spring syringe has the advantages that structures of trigger and push devices are greatly simplified, operation is convenient, cost is low, the 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 needleless spring injector 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 mainly in order to 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.
Syringe price is too expensive, too low concerning cost performance ordinary populace, due to the impact of 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 needleless spring injector, safety, cost are low, injection efficiency is high, reliability is high.
To achieve these goals, present invention employs following technical scheme: disposable needleless spring injector, comprise cylindrical shell, be installed on described cylindrical shell front end and for the needleless drug storage assembly of splendid attire injection or vaccine, in described cylindrical shell can along the longitudinal direction movement piston, be installed on barrel tip rear end cap, be located at spring between described piston and rear end cap; The left side of described piston is the piston push rod of needleless drug storage assembly, and the front end of described piston push rod is connected to rubber piston, and described rubber piston is positioned at described needleless drug storage assembly; The controlling organization keeping or change described piston mode is provided with in described piston leftward position.
Wherein, described controlling organization comprises switch, shell fragment, gyroaxis, and described switch top is stuck on cylindrical shell, and bottom is used for seized piston when reset mode, and described shell fragment is positioned at below switch front end, and described gyroaxis is positioned at the axis hole on switch.
Wherein, be provided with a relieving ring on the downside of the front end of described switch, described relieving ring to be enclosed within cylindrical shell and to be positioned at the left side of shell fragment.
Wherein, described switch is connected with cylindrical shell by the flange of both sides on cylindrical shell, and switch is positioned in the middle of flange, realizes the relative motion with cylindrical shell with flange by gyroaxis is hinged.
Wherein, the junction of described cylindrical shell and switch is an opening that can hold switch wraparound axis of rotation.
Beneficial effect of the present invention is: structure of the present invention is simple, and parts are few, easy to make.There is higher stability, reliable plastic injection quality can be provided, ensure the abundant absorption of medicine; Because this syringe is disposable products, so the spring precision that there is not power spring use fatigue and cause reduces, affect the situation of injector to inject quality, so one can be had to ensure reliably to the plastic injection quality of syringe; This product is disposable products, equipment selection and structural design is made every effort under the premise that security is guaranteed succinctly, reliable, cost is low; 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 cross-sectional view of the present invention's state to be injected;
Fig. 2 is the cross-sectional view of the present invention's inject state;
Fig. 3 is the contour structures schematic diagram of the present invention's state to be injected.
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 needleless spring injector as shown in Figures 1 to 3, comprise cylindrical shell 1, be installed on the front end of described cylindrical shell 1 and for the needleless drug storage assembly 2 of splendid attire injection or vaccine, in described cylindrical shell 1 can along the longitudinal direction movement piston 6, be installed on cylindrical shell 1 end rear end cap 8, be located at spring 7 between described piston 6 and rear end cap 8; The left side of described piston 6 is the piston push rod 10 of needleless drug storage assembly, and the front end of described piston push rod 10 is connected to rubber piston 9, and described rubber piston 9 is positioned at described needleless drug storage assembly 2; The controlling organization keeping or change described piston 6 state is provided with in described piston 6 leftward position.
Described controlling organization comprises switch 5, shell fragment 4, gyroaxis 11, and described switch 5 top is stuck in make its action in the reasonable scope on cylindrical shell 1, and bottom is used for seized piston 6 when reset mode, and described shell fragment 4 is positioned at below switch 5 front end; On the downside of the front end of described switch 5, be provided with a relieving ring 3, described relieving ring 3 to be enclosed within cylindrical shell 1 and to be positioned at the left side of shell fragment 4.
Described switch 5 is connected with cylindrical shell 1 by the flange 12 of both sides on cylindrical shell 1, and switch 5 is positioned in the middle of flange 12, realizes the relative motion with cylindrical shell 1 with flange 12 by gyroaxis 11 is hinged.
Promote piston 6 compression power spring 7, till switch 5 seized piston 6, relieving ring 3 is gone to safety position, now syringe has resetted, the needleless drug storage assembly 2 that vaccine is housed to be tightened on syringe union joint as shown in Figure 1, now syringe has been in state to be injected, in order to prevent the situations such as maloperation, syringe relieving ring 3 should be made to be in reliable safety position; When injecting, relieving ring 3 being gone to inject state, just can carry out injection operation, is discardable syringe after having injected.
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 (5)
1. disposable needleless spring injector, is characterized in that: comprise cylindrical shell (1), be installed on the front end of described cylindrical shell (1) and for the needleless drug storage assembly (2) of splendid attire injection or vaccine, in described cylindrical shell (1) can along the longitudinal direction movement piston (6), be installed on cylindrical shell (1) end rear end cap (8), be located at spring (7) between described piston (6) and rear end cap (8);
The left side of described piston (6) is the piston push rod (10) of needleless drug storage assembly, the front end of described piston push rod (10) is connected to rubber piston (9), and described rubber piston (9) is positioned at described needleless drug storage assembly (2);
The controlling organization keeping or change described piston (6) state is provided with in described piston (6) leftward position.
2. disposable needleless spring injector according to claim 1, it is characterized in that: described controlling organization comprises switch (5), shell fragment (4), gyroaxis (11), described switch (5) top is stuck on cylindrical shell (1), bottom is used for seized piston (6) when reset mode, described shell fragment (4) is positioned at below switch (5) front end, and described gyroaxis (11) is positioned at the axis hole on switch (5).
3. disposable needleless spring injector according to claim 2, it is characterized in that: on the downside of the front end of described switch (5), be provided with a relieving ring (3), described relieving ring (3) is enclosed within cylindrical shell (1) and goes up and the left side being positioned at shell fragment (4).
4. disposable needleless spring injector according to claim 2, it is characterized in that: described switch (5) is connected with cylindrical shell (1) by the flange (12) of the upper both sides of cylindrical shell (1), switch (5) is positioned in the middle of flange (12), realizes the relative motion with cylindrical shell (1) with flange (12) by gyroaxis (11) is hinged.
5. disposable needleless spring injector according to claim 1, is characterized in that: described cylindrical shell (1) and the junction of switch (5) are an opening that can hold that switch (5) wraparound rotating shaft (12) rotates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610020520.8A CN105477749A (en) | 2016-01-13 | 2016-01-13 | Disposable needle-free spring syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610020520.8A CN105477749A (en) | 2016-01-13 | 2016-01-13 | Disposable needle-free spring syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105477749A true CN105477749A (en) | 2016-04-13 |
Family
ID=55665251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610020520.8A Pending CN105477749A (en) | 2016-01-13 | 2016-01-13 | Disposable needle-free spring syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105477749A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113855938A (en) * | 2021-11-11 | 2021-12-31 | 王铁生 | Insulin needleless injector |
| CN114949458A (en) * | 2022-03-08 | 2022-08-30 | 苏州肯美特设备集成有限公司 | Needleless injection device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2863134Y (en) * | 2006-01-16 | 2007-01-31 | 北京康富博科技发展有限公司 | Inermous injector regulating injection depth at syringe rear portion |
| CN2936281Y (en) * | 2006-06-22 | 2007-08-22 | 陈凯 | Propelling injector for no-needle injection |
| WO2012154025A2 (en) * | 2011-05-12 | 2012-11-15 | Mht Injex Sdn. Bhd. | An improved needleless hypodermic injection device |
| CN103816586A (en) * | 2014-02-28 | 2014-05-28 | 华南理工大学 | Mechanical needle-free injection propulsion device |
| CN203861699U (en) * | 2014-05-14 | 2014-10-08 | 苏州大学张家港工业技术研究院 | Manpower-driven energy storage type needleless injector |
| CN205460225U (en) * | 2016-01-13 | 2016-08-17 | 北京步腾医学科技有限公司 | Disposable needleless spring syringe |
-
2016
- 2016-01-13 CN CN201610020520.8A patent/CN105477749A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2863134Y (en) * | 2006-01-16 | 2007-01-31 | 北京康富博科技发展有限公司 | Inermous injector regulating injection depth at syringe rear portion |
| CN2936281Y (en) * | 2006-06-22 | 2007-08-22 | 陈凯 | Propelling injector for no-needle injection |
| WO2012154025A2 (en) * | 2011-05-12 | 2012-11-15 | Mht Injex Sdn. Bhd. | An improved needleless hypodermic injection device |
| CN103816586A (en) * | 2014-02-28 | 2014-05-28 | 华南理工大学 | Mechanical needle-free injection propulsion device |
| CN203861699U (en) * | 2014-05-14 | 2014-10-08 | 苏州大学张家港工业技术研究院 | Manpower-driven energy storage type needleless injector |
| CN205460225U (en) * | 2016-01-13 | 2016-08-17 | 北京步腾医学科技有限公司 | Disposable needleless spring syringe |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113855938A (en) * | 2021-11-11 | 2021-12-31 | 王铁生 | Insulin needleless injector |
| CN114949458A (en) * | 2022-03-08 | 2022-08-30 | 苏州肯美特设备集成有限公司 | Needleless injection device |
| CN114949458B (en) * | 2022-03-08 | 2024-01-05 | 苏州肯美特设备集成股份有限公司 | Needleless injection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160413 |
|
| WD01 | Invention patent application deemed withdrawn after publication |