CN202920636U - Dual-channel filter dosing injector - Google Patents
Dual-channel filter dosing injector Download PDFInfo
- Publication number
- CN202920636U CN202920636U CN2012206567623U CN201220656762U CN202920636U CN 202920636 U CN202920636 U CN 202920636U CN 2012206567623 U CN2012206567623 U CN 2012206567623U CN 201220656762 U CN201220656762 U CN 201220656762U CN 202920636 U CN202920636 U CN 202920636U
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- CN
- China
- Prior art keywords
- medicine
- passage
- syringe
- holding tank
- drug
- 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.)
- Expired - Fee Related
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- 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
Abstract
The utility model discloses a dual-channel filter dosing injector. The dual-channel filter dosing injector comprises a needle cylinder, a guide cover plate, a piston, a cylindrical push rod and a dual-channel dosing filter, wherein the guide cover plate is arranged at the upper end of the needle cylinder, the piston is arranged in the needle cylinder, the cylindrical push rod stretches into the needle cylinder by penetrating through the guide cover plate and is connected with the piston, the dual-channel dosing filter is arranged in the needle cylinder and is positioned under the piston, the inner part of the dual-channel dosing filter is provided with a medicine inlet channel and a medicine outlet channel which are communicated to the needle cylinder, the medicine inlet channel and the medicine outlet channel are internally and respectively provided with a one-way valve which is capable of realizing one-way switching, switching directions of the one-way valves in the medicine inlet channel and the medicine outlet channel are opposite, and at least one of the medicine inlet channel and the medicine outlet channel is provided with a filter membrane. According to the dual-channel filter dosing injector disclosed by the utility model, the using cost is low, and the using range is wide.
Description
Technical field
This utility model relates to a kind of syringe, relates in particular to a kind of dual channel filtered medicine adding syringe.
Background technology
at present, the medicine adding syringe that the venous transfusion dosing is used is ordinary syringe, ordinary syringe is not all with the function of medical filtration, generally when dosing, can form rubber particle after the rubber stopper of liquid medicine bottle is pricked by syringe needle and enter into liquid medicine with syringe needle, same, manually break off with the fingers and thumb again after the top of glass liquid medicine bottle of sealing is cut by little emery wheel and also can form glass granules when disconnected and enter into liquid medicine, and when injection, these transfusion particles of rubber or glass can be expelled in human body with liquid medicine, enter into lung tissue through blood again, infringement lung tissue even tumor becomes, transfusion particle has been the known fact to the harm that human body produces.
Address the above problem at present is by the precision infusion set of use with filter, the syringe costliness that the price of this precision infusion set is more common, and its filter is by gravity filtration, filter membrane is thinner, filter effect is restricted, and the safe handling amount of infusion is limited in 1500ml, and therefore the clinical transfusion amount still has certain limitation often all greater than 1500ml; Because the precision infusion set price with filter is high, basic hospital does not use this precision infusion set substantially, makes the scope of application restricted.
The utility model content
The purpose of this utility model is to provide a kind of dual channel filtered medicine adding syringe, has solved use cost height and the narrow problem of the scope of application of precision infusion set.
for achieving the above object, this utility model provides a kind of dual channel filtered medicine adding syringe, comprise syringe, be arranged on the defelctor apron of described syringe upper end, be arranged on the piston in described syringe, and pass described defelctor apron and stretch in described syringe and the column push rod that is connected with described piston, also comprise the dual pathways dosing filter of being located in described syringe and being positioned at described piston below, the inside of described dual pathways dosing filter be provided be communicated to described syringe advance medicine passage and drug passage, describedly advance in medicine passage and described drug passage to be equipped with the check valve that to realize one-way conduction, the described conducting direction that advances the check valve in medicine passage and described drug passage is opposite, and described advance medicine passage and described drug passage one of them is provided with filter membrane at least.
Preferably, describedly advance in medicine passage and described drug passage to be equipped with holding tank, be provided with in described holding tank and can move up and down the valve block of realizing one-way conduction, described check valve is comprised of described holding tank and described valve block.
When the matsurface that contact with the roof of described holding tank when preferably, the described valve block that advances in the medicine passage is provided with into medicine and drug and the diapire of described holding tank seal the sealing surface of applying; The matsurface that valve block in described drug passage contact with the diapire of described holding tank when being provided with drug and when advancing medicine and the roof of described holding tank seal the sealing surface of applying.
Preferably, the described roof that advances the holding tank in the medicine passage is shiny surface or matsurface, and the diapire of the holding tank in described drug passage is shiny surface or matsurface.
When the matsurface that contacts with described valve block end face when preferably, the described holding tank that advances in the medicine passage is provided with into medicine and drug and the shiny surface of described valve block sealing bottom surface applying; The matsurface that contacts with described valve block bottom surface during with the shiny surface of described valve block end face sealing applying and drug when the holding tank in described drug passage is provided with into medicine.
Preferably, the described end face that advances the valve block in the medicine passage is shiny surface, and the bottom surface of the valve block in described drug passage is shiny surface.
Preferably, the column push rod between described defelctor apron and described piston is arranged with elasticity mantle sleeve pipe outward, and preferably the natural length of described elasticity mantle sleeve pipe is shorter than the stroke of described piston in described syringe, the suction naturally after can realizing extending.
Preferably, described defelctor apron has extended to form wing plate laterally, between described wing plate and described defelctor apron and described syringe for interference or be threaded.
Compared with prior art, dual channel filtered medicine adding syringe of the present utility model simple in structure, filter with common filter membrane, low price, therefore use cost is low, the scope of application is extensive, can use in the hospital of any stratum, use safety, can avoid transfusion particle to enter in the lung hole of human body human body is worked the mischief.
By following description also by reference to the accompanying drawings, it is more clear that this utility model will become, and these accompanying drawings are used for explaining embodiment of the present utility model.
Description of drawings
Fig. 1 be this utility model dual channel filtered medicine adding syringe the first embodiment advance the medicine schematic diagram.
Fig. 2 is the partial enlarged drawing of Fig. 1.
Fig. 3 is the drug schematic diagram of this utility model dual channel filtered medicine adding syringe.
Fig. 4 is the partial enlarged drawing of Fig. 2.
Fig. 5 is the partial schematic diagram of this utility model dual channel filtered medicine adding syringe the second embodiment.
The specific embodiment
With reference now to accompanying drawing, describe embodiment of the present utility model, in accompanying drawing, similar element numbers represents similar element.
Please refer to Fig. 1-4, be the first embodiment of the present utility model, in the present embodiment, described dual channel filtered medicine adding syringe comprise syringe 1, be arranged on described syringe 1 upper end defelctor apron 2, be arranged on piston 3 in described syringe 1, pass described defelctor apron 2 and stretch in described syringe 3 and the column push rod 4 that is connected with described piston 3 and to be located at described syringe 3 interior and be positioned at the dual pathways dosing filter 5 of described piston 3 belows.
Particularly, described defelctor apron 2 has extended to form wing plate 21 laterally, be be threaded (also can adopt interference fit, utilize the strain of plastics to form and closely cooperate) between described wing plate 21 and described defelctor apron 2 and described syringe 1, processing is made up convenient like this.Column push rod 4 between described defelctor apron 2 and described piston 3 is outer is arranged with elasticity mantle sleeve pipe 6, and the natural length of the mantle of elasticity described in this specific embodiment sleeve pipe 6 (namely under the state that does not stress) is shorter than the stroke of described piston 3 in described syringe 1.After depressing column push rod 4, can utilize the resilience force drive piston 3 of elasticity mantle sleeve pipe 6 to move up like this, realize the auto-pumping medicinal liquid of incipient stage, firmly larger inconvenience when having avoided the beginning aspiration medicinal liquid is used convenient, laborsaving.
In the present embodiment, described dual pathways dosing filter 5 and described syringe 3 split settings, in other embodiments, described dual pathways dosing filter 5 can be one-body molded with described syringe 3.The inside of described dual pathways dosing filter 5 is provided be communicated with described syringe 1 parallel and advances medicine passage 52 and drug passage 53, and describedly advance medicine passage 52 along advancing prescription to being provided with successively check valve 54 and filter membrane 55, described drug passage 53 also is provided with filter membrane 55 and check valve 54 successively along the drug direction, the described check valves 54 that advance in medicine passage 52 and described drug passage 53 can realize one-way conduction and conducting direction opposite.
More specifically, describedly advance in medicine passage 52 and described drug passage 53 to be equipped with holding tank 541, be provided with in described holding tank 541 and can move up and down the valve block 542 of realizing one-way conduction, described check valve 54 is comprised of described holding tank 541 and described valve block 542.Described valve block 542 can not overturn in described holding tank 541, can be by the lateral length of described valve block 542 mode greater than vertical width of described holding tank 541 be realized, also can be by realizing in the interior mode that the spacing valve block 542 of lead is set of holding tank 541, perhaps be provided with groove in the both sides of valve block 542, and be provided with the projection that coordinates with groove in the both sides of holding tank 541 corresponding valve blocks, as long as can make valve block 542 can move up and down but not overturn.
When the matsurface 54a that contact with the roof of described holding tank 541 when more specifically, the described valve blocks 542 that advance in medicine passage 52 are provided with into medicine and drug and the diapire of described holding tank 541 seal the sealing surface 54b of applying; The matsurface 54a that valve blocks 15 in described drug passage 53 contacts with the diapire of described holding tank 541 when also being provided with drug and when advancing medicine and the roof of described holding tank 541 seal the sealing surface 54b of applying.Described roof and the diapire that advances the holding tank 541 in medicine passage 52 and described drug passage 53 is shiny surface.
when advancing medicinal liquid, pull described column push rod 4, medicinal liquid first enters from the medicine passage 52 that advances of described dual channel filtered medicine adding syringe, pass through successively described check valve 54 and described filter membrane 55, enter again in described syringe 1, during through described check valve 54, medicinal liquid upwards pushes away described valve block 542 the matsurface 54a that makes described valve block 542 and contacts with the smooth roof of described holding tank 541, not that sealing is fitted between matsurface 54a and smooth roof, therefore medicinal liquid can pass through from the gap between matsurface 54a and smooth roof, and enter in described syringe 1, after medicinal liquid filters through described filter membrane 55, transfusion particle can be filtered out.Because of check valve 54 directions in described drug passage 53 and described check valve 54 opposite directions that advance medicine passage 52, be that medicinal liquid is when entering, the sealing surface 54b of the valve block 542 in described drug passage 53 can fit with the roof sealing of described holding tank 541, therefore can stop medicinal liquid to enter in described syringe 1 through described drug passage 53.
when going out medicinal liquid, promote described column push rod 4, medicinal liquid first enters from the drug passage 53 of described syringe 1 through described dual channel filtered medicine adding syringe, pass through successively described filter membrane 55 and described check valve 54, enter into again in syringe needle, enter into people's intravenous by syringe needle, during through described check valve 54, medicinal liquid pushes away described valve block 542 downwards the matsurface 54a that makes described valve block 542 and contacts with the smooth diapire of described holding tank 541, not that sealing is fitted between matsurface 54a and smooth diapire, therefore medicinal liquid can pass through from the gap between matsurface 54a and smooth diapire, and enter in syringe needle, after medicinal liquid filters again through described filter membrane 55, can fully transfusion particle be filtered out, filter effect is very good.Because the described sealing surface 54b that advances the valve block 542 in medicine passage 52 can fit with the diapire sealing of described holding tank 541, therefore can stop medicinal liquid to advance medicine passage 52 and enter in syringe needle through described.
In sum, dual channel filtered medicine adding syringe of the present utility model simple in structure, the scope of application is extensive, can use in the hospital of any stratum, uses safety, can effectively avoid antibacterial and microgranule to enter infusion bottle.
Please refer to Fig. 5, be the second embodiment of the present utility model, in the present embodiment, the described upper end of advancing medicine passage 52 and described drug passage 53 is provided with a filter membrane 55, the upper end of described filter membrane 55 is provided with the banking stop 7 with through hole 71, and described banking stop 7 is used for described filter membrane 55 is fixed on the described upper end of advancing medicine passage 52 and described drug passage 53.When advancing medicinal liquid, medicinal liquid advances in medicine passage 52 to pass through successively described check valve 54 and described filter membrane 55 described, in the through hole 71 by described banking stop 7 enters into described syringe 1.When going out medicinal liquid, medicinal liquid first enters into the described check valve 54 of the interior process of described drug passage 53 through the through hole 71 of described banking stop 7 and described filter membrane 55 again and enters in syringe needle.Filter membrane 55 in the present embodiment can filter out transfusion particle fully, and filter effect is very good.The present embodiment has the effect identical with above-mentioned the first embodiment, therefore do not give unnecessary details.
This utility model also has the 3rd embodiment, and the difference of the present embodiment and above-mentioned the first embodiment only is: the described roof that advances the holding tank 541 in medicine passage 52 is matsurface, and the diapire of the holding tank 541 in described drug passage 53 is matsurface.The matsurface of holding tank 541 contacts with the matsurface 54a of valve block 542, and medicinal liquid is passed through.The present embodiment has identical technique effect with above-mentioned the first embodiment, does not repeat them here.
This utility model also has the 4th embodiment, and the difference of the present embodiment and above-mentioned the first embodiment only is: the described roof that advances the holding tank 541 in medicine passage 52 is matsurface, and the diapire of the holding tank 541 in described drug passage 53 is matsurface.The described end face that advances the valve block 542 in medicine passage 52 is shiny surface, and the bottom surface of the valve block 542 in described drug passage 53 is shiny surface, and the matsurface of holding tank 541 contacts with the shiny surface of valve block 542, and medicinal liquid is passed through.The present embodiment has identical technique effect with above-mentioned the first embodiment, does not repeat them here.
Abovely in conjunction with most preferred embodiment, this utility model is described, but this utility model is not limited to the embodiment of above announcement, and should contains various modification, equivalent combinations of carrying out according to essence of the present utility model.
Claims (8)
1. dual channel filtered medicine adding syringe, comprise syringe, be arranged on the defelctor apron of described syringe upper end, be arranged on the piston in described syringe, and pass described defelctor apron and stretch in described syringe and the column push rod that is connected with described piston, it is characterized in that: also comprise the dual pathways dosing filter of being located in described syringe and being positioned at described piston below, the inside of described dual pathways dosing filter be provided be communicated to described syringe advance medicine passage and drug passage, describedly advance in medicine passage and described drug passage to be equipped with the check valve that to realize one-way conduction, the described conducting direction that advances the check valve in medicine passage and described drug passage is opposite, and described advance medicine passage and described drug passage one of them is provided with filter membrane at least.
2. dual channel filtered medicine adding syringe as claimed in claim 1, it is characterized in that: describedly advance in medicine passage and described drug passage to be equipped with holding tank, be provided with in described holding tank and can move up and down the valve block of realizing one-way conduction, described check valve is comprised of described holding tank and described valve block.
3. dual channel filtered medicine adding syringe as claimed in claim 2 is characterized in that: when the matsurface that the described valve block that advances in the medicine passage contact with the roof of described holding tank when being provided with into medicine and drug and the diapire of described holding tank seal the sealing surface of applying; The matsurface that valve block in described drug passage contact with the diapire of described holding tank when being provided with drug and when advancing medicine and the roof of described holding tank seal the sealing surface of applying.
4. dual channel filtered medicine adding syringe as claimed in claim 3 is characterized in that: the described roof that advances the holding tank in the medicine passage is shiny surface or matsurface, and the diapire of the holding tank in described drug passage is shiny surface or matsurface.
5. dual channel filtered medicine adding syringe as claimed in claim 2 is characterized in that: when the matsurface that the described holding tank that advances in the medicine passage contacts with described valve block end face when being provided with into medicine and drug and the shiny surface of described valve block sealing bottom surface applying; The matsurface that contacts with described valve block bottom surface during with the shiny surface of described valve block end face sealing applying and drug when the holding tank in described drug passage is provided with into medicine.
6. dual channel filtered medicine adding syringe as claimed in claim 5 is characterized in that: the described end face that advances the valve block in the medicine passage is shiny surface, and the bottom surface of the valve block in described drug passage is shiny surface.
7. dual channel filtered medicine adding syringe as claimed in claim 1, it is characterized in that: the column push rod between described defelctor apron and described piston is arranged with elasticity mantle sleeve pipe outward.
8. dual channel filtered medicine adding syringe as claimed in claim 1, it is characterized in that: described defelctor apron has extended to form wing plate laterally, between described wing plate and described defelctor apron and described syringe for interference or be threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206567623U CN202920636U (en) | 2012-12-03 | 2012-12-03 | Dual-channel filter dosing injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206567623U CN202920636U (en) | 2012-12-03 | 2012-12-03 | Dual-channel filter dosing injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202920636U true CN202920636U (en) | 2013-05-08 |
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ID=48210629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206567623U Expired - Fee Related CN202920636U (en) | 2012-12-03 | 2012-12-03 | Dual-channel filter dosing injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202920636U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103006437A (en) * | 2012-12-03 | 2013-04-03 | 陈庆强 | Double-channel filtration dosing injection syringe |
| CN104027249A (en) * | 2014-06-23 | 2014-09-10 | 河南科技大学第一附属医院 | Medical infusion dosing device |
| CN106890381A (en) * | 2017-04-13 | 2017-06-27 | 王辉 | A kind of filtration syringe tool and its technical scheme |
| 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 |
-
2012
- 2012-12-03 CN CN2012206567623U patent/CN202920636U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103006437A (en) * | 2012-12-03 | 2013-04-03 | 陈庆强 | Double-channel filtration dosing injection syringe |
| CN104027249A (en) * | 2014-06-23 | 2014-09-10 | 河南科技大学第一附属医院 | Medical infusion dosing device |
| CN104027249B (en) * | 2014-06-23 | 2016-09-21 | 河南科技大学第一附属医院 | A kind of medical infusion chemicals dosing plant |
| CN106890381A (en) * | 2017-04-13 | 2017-06-27 | 王辉 | A kind of filtration syringe tool and its technical scheme |
| 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 |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20151203 |
|
| EXPY | Termination of patent right or utility model |