CN106693120A - Pull rod type needleless injector - Google Patents
Pull rod type needleless injector Download PDFInfo
- Publication number
- CN106693120A CN106693120A CN201611229375.0A CN201611229375A CN106693120A CN 106693120 A CN106693120 A CN 106693120A CN 201611229375 A CN201611229375 A CN 201611229375A CN 106693120 A CN106693120 A CN 106693120A
- Authority
- CN
- China
- Prior art keywords
- spring
- injection
- pull rod
- needleless injector
- principle
- 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
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
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 provides a pull rod type needleless injector, which does not use a needle head when injecting medicine, and forms a thinner liquid flow by using a high-pressure jet principle so as to instantly penetrate through the skin to reach the subcutaneous part. Due to the change of the injection principle, the liquid medicine is dispersed and distributed under the skin, the onset time is faster, and the medicine absorption rate is higher. The device consists of a shell, a spring, a pressurizing pull rod, a locking mechanism, an exciting hammer, a tail switch and a fixed shaft. Based on the lever principle, the invention slightly pulls the pressurizing pull rod open, the pressurizing pull rod extrudes the exciting hammer, the locking structure and the upper spring, when the spring is contracted to a specified position (the pressure can reach 150N), the spring is locked by the tail switch, the pressurizing rod is closed, and the tail switch is pressed down to complete the injection.
Description
Technical field
The present invention relates to a kind of needleless injector, more particularly to a kind of rod-pulling type needleless injector.
Background technology
Needleless injector is that a kind of release by spring energy produces power, based on high-pressure jet principle, forms liquid
Thinner liquid flow, moment penetrates skin and reaches underlying muscle tissue.Complete a kind of syringe of function of injection.
Traditional needle injection that has injects completion function of injection by subdermal muscle, but patient has pain in injection process
Pain, and there is the risk of cross-infection between doctors and patients.
At present, some needleless injector complex structures, are more expensive to manufacture, and operation is also inconvenient.
The content of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of rod-pulling type needleless injector, when drug injection is carried out not
By syringe needle, using high-pressure jet principle, liquid is set to form thinner liquid flow, moment penetrates skin and reaches subcutaneous.Due to note
The change of principle is penetrated, in subcutaneous Dispersed precipitate, onset time, faster drug absorption rate was higher for liquid.
Compared with prior art, the beneficial effect of this equipment is：
(1) syringe needle is not used, compliance when patient treats can be improved, reduce the psychological conflict to treating, especially
Children.
(2) syringe needle is not used, situations such as be not in " broken needle ", security is improved, while avoiding injection site repeatedly
The formation hardened after injection.
(3) medical personnel are effectively reduced when treating and infects the risk of communicable disease, while reducing medical waste, saved
About medical expense.
(4) for different skin characteristics, from fat to thin, there is pressing injection, pinch skin injection and seize three kinds of injections of skin injection
Method, compared with traditional needle injection, application method is easy to learn, it is not necessary to which user is giveed training.
(5) apparatus main body is reusable, it is also possible to is used to different patients, is improved a lot in economy.
Brief description of the drawings
Fig. 1 is structure drawing of device；
(1, housing in figure；2nd, spring；3rd, pressurize pull bar；4th, retaining mechanism；5th, hammer is excited；6th, afterbody switch；7th, it is fixed
Axle.)
Specific embodiment
Clear, complete description will be carried out to the technical scheme in the embodiment of the present invention below, it is clear that described implementation
Example is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the common skill in this area
The every other embodiment that art personnel are obtained on the premise of creative work is not made, belongs to the model of present invention protection
Enclose.
The invention provides a kind of rod-pulling type needleless injector (referring to Fig. 1), including housing 1, spring 2, pressurization pull bar 3,
Retaining mechanism 4, excite hammer 5, afterbody switch 6.The present invention is based on lever principle, gently pulls open pressurization pull bar 3, and pressurization pull bar 3 is squeezed
Pressure excites hammer 5, locking mechanism 4 and spring above 2, when spring 2 is contracted to specified location (pressure is up to 150N), then by afterbody
Switch locking 6, closed pressure rod 2, and injection is completed immediately by lower tail switch 6.
Claims (3)
1. the present invention provides a kind of rod-pulling type needleless injector, it is characterised in that：By housing, spring, pressurization pull bar, locking machine
Structure, excite hammer, afterbody switch and fixing axle constitute.
2. needleless injector according to claim 1, it is characterised in that：When drug injection is carried out not by syringe needle, make
High-pressure jet principle is used, liquid is formed thinner liquid flow, moment penetrates skin and reaches subcutaneous.Due to changing for injection principle
Become, in subcutaneous Dispersed precipitate, onset time, faster drug absorption rate was higher for liquid.
3. needleless injector according to claim 1, it is characterised in that：Based on lever principle, pressurization pull bar is gently pulled open,
Pressurization pull bar extruding excites hammer, locking mechanism and spring above, as spring contraction to specified location (pressure is up to 150N), then
By afterbody switch locking, closed pressure rod, and injection is completed immediately by lower tail switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611229375.0A CN106693120A (en) | 2016-12-27 | 2016-12-27 | Pull rod type needleless injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611229375.0A CN106693120A (en) | 2016-12-27 | 2016-12-27 | Pull rod type needleless injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106693120A true CN106693120A (en) | 2017-05-24 |
Family
ID=58895553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611229375.0A Pending CN106693120A (en) | 2016-12-27 | 2016-12-27 | Pull rod type needleless injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106693120A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107252512A (en) * | 2017-06-16 | 2017-10-17 | 南阳市中心医院 | A kind of gas-driven needle-less syringe |
| CN109452985A (en) * | 2018-10-25 | 2019-03-12 | 江苏阀邦半导体材料科技有限公司 | Semi-automatic sample presentation needle |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB733296A (en) * | 1952-12-04 | 1955-07-06 | Norton George Hein Jr | Improvements in hypodermic injection apparatus |
| FR2641190A1 (en) * | 1989-01-05 | 1990-07-06 | Akra | Needleless injector |
| WO2001017592A1 (en) * | 1999-09-03 | 2001-03-15 | Genesis Medical Technologies, Inc. | Needleless injector system |
| DE102004039320A1 (en) * | 2004-02-06 | 2005-08-25 | Ornamin-Kunststoffwerke | Shooting apparatus, comprises a movable plunger in a housing, a tensioning unit and a release mechanism |
| CN201131986Y (en) * | 2007-10-29 | 2008-10-15 | 冯少为 | Electric needleless injectors |
| CN201453781U (en) * | 2009-08-06 | 2010-05-12 | 普华筑金科技(北京)股份有限公司 | pressurizer for needleless injector |
| CN205084124U (en) * | 2015-11-10 | 2016-03-16 | 马素清 | A needleless injector for paediatrics |
| CN205108596U (en) * | 2015-11-13 | 2016-03-30 | 苏州肯美威机械制造有限公司 | Loader for needleless injector |
-
2016
- 2016-12-27 CN CN201611229375.0A patent/CN106693120A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB733296A (en) * | 1952-12-04 | 1955-07-06 | Norton George Hein Jr | Improvements in hypodermic injection apparatus |
| FR2641190A1 (en) * | 1989-01-05 | 1990-07-06 | Akra | Needleless injector |
| WO2001017592A1 (en) * | 1999-09-03 | 2001-03-15 | Genesis Medical Technologies, Inc. | Needleless injector system |
| DE102004039320A1 (en) * | 2004-02-06 | 2005-08-25 | Ornamin-Kunststoffwerke | Shooting apparatus, comprises a movable plunger in a housing, a tensioning unit and a release mechanism |
| CN201131986Y (en) * | 2007-10-29 | 2008-10-15 | 冯少为 | Electric needleless injectors |
| CN201453781U (en) * | 2009-08-06 | 2010-05-12 | 普华筑金科技(北京)股份有限公司 | pressurizer for needleless injector |
| CN205084124U (en) * | 2015-11-10 | 2016-03-16 | 马素清 | A needleless injector for paediatrics |
| CN205108596U (en) * | 2015-11-13 | 2016-03-30 | 苏州肯美威机械制造有限公司 | Loader for needleless injector |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107252512A (en) * | 2017-06-16 | 2017-10-17 | 南阳市中心医院 | A kind of gas-driven needle-less syringe |
| CN107252512B (en) * | 2017-06-16 | 2018-03-13 | 南阳市中心医院 | A kind of gas-driven needle-less syringe |
| CN109452985A (en) * | 2018-10-25 | 2019-03-12 | 江苏阀邦半导体材料科技有限公司 | Semi-automatic sample presentation needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170524 |
|
| WD01 | Invention patent application deemed withdrawn after publication |