CN109999274A - Medical quantitative injector - Google Patents
Medical quantitative injector Download PDFInfo
- Publication number
- CN109999274A CN109999274A CN201910413638.0A CN201910413638A CN109999274A CN 109999274 A CN109999274 A CN 109999274A CN 201910413638 A CN201910413638 A CN 201910413638A CN 109999274 A CN109999274 A CN 109999274A
- Authority
- CN
- China
- Prior art keywords
- injection
- guide
- quantitative
- tube
- guide ruler
- 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
- 238000005096 rolling process Methods 0.000 abstract 5
- 239000007788 liquid Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000149 penetrating effect Effects 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
-
- 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
- A61M5/3129—Syringe barrels
-
- 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
- A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
-
- 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
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
A medical quantitative injector relates to the technical field of medical instruments and solves the technical problem of improving the accuracy of injection quantity. The injector comprises an injection tube and a piston arranged in the injection tube; a core rod is fixed on the piston and extends upwards to the outside of the injection tube; a guide ruler is fixed on the injection tube, and a sliding seat capable of sliding up and down along the guide ruler is arranged on the guide ruler; the sliding seat is fixedly connected with the core rod, a guide hole is formed in the sliding seat, a rolling ball in clearance fit with the guide hole is arranged in the guide hole, the left part of the rolling ball extends to the outside of the guide hole and abuts against the guide ruler, and a spring for driving the rolling ball to move towards the direction of the guide ruler is arranged in the guide hole; the guide ruler is provided with a plurality of quantitative concave holes for clamping the rolling balls, the aperture of each quantitative concave hole is smaller than the diameter of the rolling ball, and the quantitative concave holes are arranged at equal intervals from top to bottom. The injector provided by the invention can realize quantitative injection of liquid.
Description
Technical field
The present invention relates to medical equipment technologies, more particularly to a kind of technology of medical fixed-quantity injector.
Background technique
Existing syringe is made of injection-tube, piston and core bar, moves core bar with hand push when injection, be allowed to drive piston to
Injection port direction movement, to injecting the liquor in injection-tube into objective body.The injection volume of liquor is all by injection-tube
Scale come what is artificially judged, the accuracy of injection volume is not high, big by man's activity, is easy to inject excessive, causes disposably to infuse
The amount of penetrating is excessive, so as to cause malpractice.
Summary of the invention
For above-mentioned defect existing in the prior art, technical problem to be solved by the invention is to provide a kind of injection volumes
The high medical fixed-quantity injector of accuracy.
In order to solve the above-mentioned technical problem, a kind of medical fixed-quantity injector provided by the present invention, including injection-tube, and peace
Piston in injection-tube；The lower end of the injection-tube is formed with injection port；Core bar, the core bar are fixed on the piston
It extends to outside injection-tube upwards；It is characterized by:
Guide ruler is fixed on the injection-tube, guide ruler is equipped with can be along the slide that guide ruler slides up and down；
The slide is affixed with core bar, and guide hole is offered on slide, the spin with its clearance fit, the spin are equipped in guide hole
Left part extend to outside guide hole and resist guide ruler, the spring for driving spin mobile towards guide ruler direction is equipped in guide hole；
Multiple quantitative shrinkage pools being caught in for spin are offered in the guide ruler, the aperture of the quantitative shrinkage pool is less than the straight of spin
Diameter, and each quantitative shrinkage pool equidistantly arranges from top to bottom.
Further, the guide ruler is removably fixed on injection-tube, and the slide and core bar are with detachable side
Formula is affixed.
Medical fixed-quantity injector provided by the invention can be made in injection-tube by the cooperation of spin and quantitative shrinkage pool
The quantitative propulsion of piston, one lattice of every propulsion inject quantitative liquor, have the characteristics that injection volume accuracy is high.
Detailed description of the invention
Fig. 1 is the main view of the medical fixed-quantity injector of the embodiment of the present invention；
Fig. 2 is the cross section view after line A-A cutting of the medical fixed-quantity injector of the embodiment of the present invention in Fig. 1；
Fig. 3 is the right view of the guide ruler in the medical fixed-quantity injector of the embodiment of the present invention.
Specific embodiment
The embodiment of the present invention is described in further detail below in conjunction with Detailed description of the invention, but the present embodiment is not used to limit
The system present invention, all that protection scope of the present invention should all be included in using similar structure and its similar variation of the invention, present invention
In pause mark indicate the relationship of sum.
As shown in Figure 1-Figure 3, a kind of medical fixed-quantity injector provided by the embodiment of the present invention, including injection-tube 1, and peace
Piston 2 in injection-tube；The lower end of the injection-tube is formed with injection port；Core bar 3 is fixed on the piston 2, it is described
Core bar 3 extends to outside injection-tube upwards；It is characterized by:
Be fixed with dismountable guide ruler 4 on the injection-tube 1, guide ruler 4 be equipped with can along the slide 5 that guide ruler slides up and down, and
The vertical guide groove 41 slided up and down for guiding slide is offered in guide ruler 4；
The slide 5 is affixed in a manner of detachable with core bar 3, and guide hole is offered on slide 5, is equipped with and its clearance fit in guide hole
Spin 6, the left part of the spin 6 extends to outside guide hole and resists guide ruler 4, is equipped in guide hole for driving spin 6 towards leading
The mobile spring 7 in ruler direction；
Multiple quantitative shrinkage pools 8 being caught in for spin 6 are offered in the guide ruler 4, the aperture of the quantitative shrinkage pool 8 is less than spin
6 diameter, and the equidistant arrangement from top to bottom of each quantitative shrinkage pool 8.
The embodiment of the present invention can realize that liquor is quantitatively injected, and application method is as follows:
Liquor is first pumped into injection-tube, and adjusts core bar, spin is made to be caught in one of those quantitative shrinkage pool, when injection pushes down on
Core bar is deviate from, and as core bar is moved down so that spin overcomes elastic force from current quantitative shrinkage pool, when spin be displaced downwardly to it is next
When at a quantitative shrinkage pool, spin is caught in the quantitative shrinkage pool under the action of the spring, so that there is Caton in moving down for core bar, operator
When experiencing core bar Caton, stops pushing core bar, quantifying for liquor can be completed and inject；
According to the required volume requirements injected, single injection can inject a lattice (spacing of adjacent quantitative shrinkage pool is a lattice),
More lattice can be injected.
In the embodiment of the present invention, guide ruler is removably to be fixed on injection-tube, and slide and core bar are also with can
Unloading mode is affixed, in other embodiments of the present invention, guide ruler be also possible to be fixed on it is non-removable on injection-tube, slide with
Core bar is also possible to not removable lining.
Claims (2)
1. a kind of medical fixed-quantity injector, including injection-tube, and the piston being mounted in injection-tube；The lower end shape of the injection-tube
At there is injection port；Core bar is fixed on the piston, the core bar extends to outside injection-tube upwards；It is characterized by:
Guide ruler is fixed on the injection-tube, guide ruler is equipped with can be along the slide that guide ruler slides up and down；
The slide is affixed with core bar, and guide hole is offered on slide, the spin with its clearance fit, the spin are equipped in guide hole
Left part extend to outside guide hole and resist guide ruler, the spring for driving spin mobile towards guide ruler direction is equipped in guide hole；
Multiple quantitative shrinkage pools being caught in for spin are offered in the guide ruler, the aperture of the quantitative shrinkage pool is less than the straight of spin
Diameter, and each quantitative shrinkage pool equidistantly arranges from top to bottom.
2. medical fixed-quantity injector according to claim 1, it is characterised in that: the guide ruler is removably fixed on
On injection-tube, the slide and core bar are affixed in a manner of detachable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910413638.0A CN109999274A (en) | 2019-05-17 | 2019-05-17 | Medical quantitative injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910413638.0A CN109999274A (en) | 2019-05-17 | 2019-05-17 | Medical quantitative injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109999274A true CN109999274A (en) | 2019-07-12 |
Family
ID=67177331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910413638.0A Pending CN109999274A (en) | 2019-05-17 | 2019-05-17 | Medical quantitative injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109999274A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111544156A (en) * | 2019-11-14 | 2020-08-18 | 大连医科大学 | Syringe for animal experiments |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2707954A (en) * | 1954-05-05 | 1955-05-10 | Sr John L Kas | Dosing syringe |
| CN2832180Y (en) * | 2005-03-11 | 2006-11-01 | 甘肃成纪生物药业有限公司 | Full-automatic syringe with cassette bottle |
| CN201083636Y (en) * | 2007-09-25 | 2008-07-09 | 河南省中分仪器有限公司 | Needle tube dosing device |
| KR101143929B1 (en) * | 2011-06-16 | 2012-05-11 | 황종문 | Syringe |
| CN202490269U (en) * | 2012-03-07 | 2012-10-17 | 张秀丽 | Special quantitative insulin syringe |
| CN102949766A (en) * | 2011-08-27 | 2013-03-06 | 姜伟 | Injection dose regulating device |
| US20130090603A1 (en) * | 2010-06-30 | 2013-04-11 | John D. Hoyle, Jr. | Dosage control syringe |
| KR20160141502A (en) * | 2015-06-01 | 2016-12-09 | 신철균 | Quantitative injector for syringe |
| CN108721733A (en) * | 2018-06-19 | 2018-11-02 | 青岛大学附属医院 | A kind of painless micro fix device |
| CN210044610U (en) * | 2019-05-17 | 2020-02-11 | 上海市东方医院（同济大学附属东方医院） | Medical quantitative injector |
-
2019
- 2019-05-17 CN CN201910413638.0A patent/CN109999274A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2707954A (en) * | 1954-05-05 | 1955-05-10 | Sr John L Kas | Dosing syringe |
| CN2832180Y (en) * | 2005-03-11 | 2006-11-01 | 甘肃成纪生物药业有限公司 | Full-automatic syringe with cassette bottle |
| CN201083636Y (en) * | 2007-09-25 | 2008-07-09 | 河南省中分仪器有限公司 | Needle tube dosing device |
| US20130090603A1 (en) * | 2010-06-30 | 2013-04-11 | John D. Hoyle, Jr. | Dosage control syringe |
| KR101143929B1 (en) * | 2011-06-16 | 2012-05-11 | 황종문 | Syringe |
| CN102949766A (en) * | 2011-08-27 | 2013-03-06 | 姜伟 | Injection dose regulating device |
| CN202490269U (en) * | 2012-03-07 | 2012-10-17 | 张秀丽 | Special quantitative insulin syringe |
| KR20160141502A (en) * | 2015-06-01 | 2016-12-09 | 신철균 | Quantitative injector for syringe |
| CN108721733A (en) * | 2018-06-19 | 2018-11-02 | 青岛大学附属医院 | A kind of painless micro fix device |
| CN210044610U (en) * | 2019-05-17 | 2020-02-11 | 上海市东方医院（同济大学附属东方医院） | Medical quantitative injector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111544156A (en) * | 2019-11-14 | 2020-08-18 | 大连医科大学 | Syringe for animal experiments |
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| PB01 | Publication | ||
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