CN102885694A - Precision filtration syringe - Google Patents
Precision filtration syringe Download PDFInfo
- Publication number
- CN102885694A CN102885694A CN2012101369724A CN201210136972A CN102885694A CN 102885694 A CN102885694 A CN 102885694A CN 2012101369724 A CN2012101369724 A CN 2012101369724A CN 201210136972 A CN201210136972 A CN 201210136972A CN 102885694 A CN102885694 A CN 102885694A
- Authority
- CN
- China
- Prior art keywords
- syringe
- secondary filter
- check valve
- liquid
- piston
- 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
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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
- A61M5/31—Details
- A61M5/3145—Filters incorporated in 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
- A61M2005/3128—Incorporating one-way valves, e.g. pressure-relief or non-return valves
Abstract
The invention relates to a precision filtration syringe. The precision filtration syringe overcomes the defect that particles and precipitates which cannot be found easily by naked eyes in an infusion bag are easily caused by the dosing of a syringe, and achieves a precision filtration effect when liquid is mixed. According to the syringe, two one-way liquid inlet valves are arranged on the basis of the original shape; single valve bodies are subjected to compression molding, an antirust precision rolling ball (11) is arranged in each valve body, and a sealing surface (10) of an inner circle of each valve body and the rolling ball are pressed by an anti-loosening pressing strip (12) which achieves an effect of a spring, so that the unidirectional flow of liquid is realized; and the first one-way valve is closely arranged in a liquid inlet hole (3) at the bottom of a piston, the second one-way valve is closely arranged in a newly formed liquid inlet hole (5), and a precision filtration screen (4) is fixed at the bottom of the piston, so that the precision filtration flow of sucking medicines by the syringe is realized.
Description
Affiliated technical field
The present invention relates to a kind of precise filtering injector, changed syringe dosing and easily caused microgranule and the precipitation that is difficult for finding by eye in the transfusion bag, when dispense liquid, just reached the effect of secondary filter.
Background technology
There is following problem in present syringe: 1, in the dosing process, the microgranule that naked eyes are difficult for finding and precipitation can add in the infusion bottle (bag) along with the thick syringe needle of syringe, cause infusion safety hidden danger.2, precision transfusion is clinical generally uses, and mainly be to filter microgranule and the precipitation that causes through syringe dosing, but cost is higher, and every about 15 yuan-38 yuan are not waited, change one every day.3, infusion bottle (bag) if in the microgranule that is difficult for finding and precipitation found by careful patient or family members, can cause the serious medical tangle of consequence and complaint.
Summary of the invention
For overcoming present syringe in the dosing process; the microgranule that naked eyes are difficult for finding and precipitation can be injected infusion bottle (bag) with the thick syringe needle of syringe; cause infusion safety hidden danger; and use precision infusion set to filter the problems such as these microgranule expense height; the invention provides a kind of precise filtering injector; make it when obtaining liq, directly filter little material and precipitation, reach the effect of secondary filter, guarantee patient's drug safety.
The technical solution adopted in the present invention is: increased by 2 unidirectional liquid feed valves on the original shape basis, be installed in respectively in (3) on the inlet opening of piston base and the newly-increased inlet opening (5), increase and fix a thick close drainage screen (4) in piston base, realized using the secondary filter flow process of syringe pump medicine.Check valve body can be compressing, by antirust precise ball (11), on the sealing surface of valve body inner circle (10), push down (12) by locking press strip above the ball, play spring action, realize the one-way flow of liquid, thereby make the medicine that aspirates in the syringe all in the secondary filter scope.A kind of precise filtering injector has changed syringe dosing and has easily caused microgranule and the precipitation that is difficult for finding by eye in the transfusion bag, has just reached the effect of secondary filter when dispense liquid.Push away syringe piston, pressure is closed check valve (3), opens simultaneously check valve (5), and liquid flows to syringe needle through check valve (5) after secondary filter net (4) filters, make syringe just reach the effect of secondary filter when dispense liquid.
The invention has the beneficial effects as follows: precise filtering injector, change syringe dosing and easily caused microgranule and the precipitation that naked eyes are difficult for finding in the transfusion bag, when dispense liquid, just reached the effect of secondary filter.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.The left figure of Fig. 1 is the precise filtering injector sketch map, and right figure is unidirectional liquid feed valve enlarged diagram.Among the figure 1, syringe piston; 2, syringe piston cylinder; 3, unidirectional liquid feed valve; 4, secondary filter net; 5, unidirectional liquid feed valve; 6, feed liquor valve opening; 7, syringe needle; 8, check valve cylindrical; 9, inlet opening; 10, sealing surface; 11, antirust precise ball; 12, locking press strip.
The specific embodiment
Among the embodiment shown in the figure, syringe needle is inserted in the liquid bottles, draw syringe piston (1) liquid to suck through syringe needle, suction has been opened unidirectional liquid feed valve (3), closed simultaneously check valve (5), made the Huaihe River body enter syringe piston cylinder (2) from check valve (3).When liquid reaches required dosage in the device to be injected, extract syringe needle from bottle, syringe needle is inserted in the bottle that needs preparation again, at this moment the liquid in the syringe is all in the secondary filter scope.Can push away syringe piston, it is tighter that pressure is closed check valve (3), opened simultaneously check valve (5), liquid is after secondary filter net (4) filters, flow to syringe needle (7) through unidirectional latent valve (5), realized that the use syringe makes up a prescription, repeatedly the secondary filter flow process of suction.
Claims (6)
1. but the syringe of a secondary filter.
2. it is characterized in that: increased by 2 unidirectional liquid feed valves on the original shape basis, be installed in respectively in (3) on the inlet opening of piston base and the newly-increased inlet opening (5), increase and fix a secondary filter net (4) in piston base, realized using the secondary filter flow process of syringe pump medicine.
3. the syringe of secondary filter according to claim 1.
4. it is characterized in that: check valve body can be compressing, by antirust precise ball (11), on the sealing surface of valve body inner circle (10), push down (12) by locking press strip above the ball, play spring action, realize the one-way flow of liquid, thereby make the medicine that aspirates in the syringe all in the secondary filter scope.
5. precise filtering injector according to claim 1 and 2, it is characterized in that: draw syringe piston, suction is opened check valve (3), simultaneously closing one-way valve (5).
6. push away syringe piston, pressure is closed check valve (3), opens simultaneously check valve (5), and liquid flows to syringe needle through check valve (5) after secondary filter net (4) filters, make syringe just reach the effect of secondary filter when dispense liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101369724A CN102885694A (en) | 2012-05-07 | 2012-05-07 | Precision filtration syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101369724A CN102885694A (en) | 2012-05-07 | 2012-05-07 | Precision filtration syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102885694A true CN102885694A (en) | 2013-01-23 |
Family
ID=47529516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101369724A Pending CN102885694A (en) | 2012-05-07 | 2012-05-07 | Precision filtration syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102885694A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104524670A (en) * | 2015-01-19 | 2015-04-22 | 宣城市江南医疗器械有限公司 | Needle type precise filtering and medicine dissolving syringe |
| CN107158523A (en) * | 2017-05-26 | 2017-09-15 | 河南曙光健士医疗器械集团股份有限公司 | A kind of syringe uses decoction macromolecule accurate filter |
| CN107397995A (en) * | 2013-03-14 | 2017-11-28 | 康尔福盛303公司 | Bottle access lid and syringe with gravity auxiliary valve |
| CN108348689A (en) * | 2015-10-30 | 2018-07-31 | 罗镛国 | Filtration syringe |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4066079A (en) * | 1976-11-03 | 1978-01-03 | Chiarolla Victor D | Filter needle |
| CN2232768Y (en) * | 1995-10-06 | 1996-08-14 | 齐岩 | Disposable injector with storage of liquid |
| GB2344526A (en) * | 1999-01-12 | 2000-06-14 | Dumaresq Lucas Alison Jayne | Syringe with filter, and filter therefor |
| CN101648040A (en) * | 2009-09-04 | 2010-02-17 | 上海一童医疗用品有限公司 | Disposable precise filtering injector |
| CN103492009A (en) * | 2011-04-08 | 2014-01-01 | 佳迈特股份有限公司 | Filter needle |
-
2012
- 2012-05-07 CN CN2012101369724A patent/CN102885694A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4066079A (en) * | 1976-11-03 | 1978-01-03 | Chiarolla Victor D | Filter needle |
| CN2232768Y (en) * | 1995-10-06 | 1996-08-14 | 齐岩 | Disposable injector with storage of liquid |
| GB2344526A (en) * | 1999-01-12 | 2000-06-14 | Dumaresq Lucas Alison Jayne | Syringe with filter, and filter therefor |
| CN101648040A (en) * | 2009-09-04 | 2010-02-17 | 上海一童医疗用品有限公司 | Disposable precise filtering injector |
| CN103492009A (en) * | 2011-04-08 | 2014-01-01 | 佳迈特股份有限公司 | Filter needle |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107397995A (en) * | 2013-03-14 | 2017-11-28 | 康尔福盛303公司 | Bottle access lid and syringe with gravity auxiliary valve |
| CN107397995B (en) * | 2013-03-14 | 2020-03-20 | 康尔福盛303公司 | Vial access cap and syringe with gravity assisted valve |
| CN104524670A (en) * | 2015-01-19 | 2015-04-22 | 宣城市江南医疗器械有限公司 | Needle type precise filtering and medicine dissolving syringe |
| CN108348689A (en) * | 2015-10-30 | 2018-07-31 | 罗镛国 | Filtration syringe |
| CN107158523A (en) * | 2017-05-26 | 2017-09-15 | 河南曙光健士医疗器械集团股份有限公司 | A kind of syringe uses decoction macromolecule accurate filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130123 |