CN110237367A - A kind of filter and its working method - Google Patents
A kind of filter and its working method Download PDFInfo
- Publication number
- CN110237367A CN110237367A CN201910477841.4A CN201910477841A CN110237367A CN 110237367 A CN110237367 A CN 110237367A CN 201910477841 A CN201910477841 A CN 201910477841A CN 110237367 A CN110237367 A CN 110237367A
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- groove
- filter membrane
- deflector hole
- filter
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000012528 membrane Substances 0.000 claims abstract description 60
- 239000012530 fluid Substances 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 230000003447 ipsilateral effect Effects 0.000 claims abstract description 4
- 239000003814 drug Substances 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 230000003715 interstitial flow Effects 0.000 claims description 3
- 238000001914 filtration Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- 230000010148 water-pollination Effects 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 210000001519 tissue Anatomy 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
- A61M5/3145—Filters incorporated in syringes
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)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a kind of filter and its working methods, comprising: the upper surface of lower cover is equipped with the first groove, and drainage trough is set in the lower surface of lower cover, and first through hole is connected to lower drainage trough and the first groove；The left side of the bottom surface of first groove is lower than its right side；Lower cover opens up deflector hole under several lower covers of perforation；Lower cover lower surface opens up several radial passages, and one end of each radial passage is connected to deflector hole under ipsilateral lower cover, and the other end of same radial passage connects with lower drainage trough；The upper of perforation is opened up in the middle part of upper disk and covers deflector hole, and upper deflector hole of covering is connected to the first groove；Upper disk opens up deflector hole under the upper covers of several perforations, and is respectively communicated with the deflector hole under several lower covers；Upper disk is equipped with several baffle convex ribs；First filter membrane is set to the first groove；Second filter membrane is set to first annular groove；The present invention air that liquid storage chamber easily enters when extracting medical fluid, the upper surface of accurate filter are the conical surface convenient for gas collection emptying.
Description
Technical field
The present invention relates to the technical field of filter more particularly to a kind of technical fields of filter.
Background technique
Currently, medicine adding syringe used in venous transfusion dosing is ordinary syringe, ordinary syringe is all no will
The function of medical filtration, generally in dosing, the rubber stopper of liquid medicine bottle is pricked by syringe needle will form rubber particle with syringe needle one later
It rises and enters in liquid medicine, also, the particle in same liquid medicine bottle can also enter in liquid medicine；And as injection is injected into people together
In body, enter inside of human body using blood, to form the lesion and tumor variation of inside of human body tissue, transfusion particle is to people
The harm that body generates has been the known fact.
Solving the above problems at present is precision infusion set by using filter, and the price of this precision infusion set is more general
Logical syringe is expensive, and filter effect is bad.
Summary of the invention
In view of the above deficiencies, now design forms filtering to medical fluid by the way that micron-sized second filter membrane is arranged, and reduces medical fluid
In impurity, avoid to human body generate adverse effect.
In order to achieve the above object, the invention adopts the following technical scheme:
A kind of filter, wherein include:
The upper surface of lower cover, the lower cover is equipped with the first groove and first annular groove；First groove is located at described
The middle part of lower cover, the first annular groove are located at the outside of first groove, the first annular groove and described first
A first annular protrusion is formed between groove；The bottom surface of first groove is inclined-plane, and the left side on the inclined-plane is oblique lower than described
The right side in face；The bottom surface of the first annular groove opens up deflector hole under several lower covers, and deflector hole penetrates through under several lower covers
To the lower surface of the lower cover；Drainage trough is arranged in the lower surface of the lower cover；The conical surface opens up several radial passages, often
One end of one radial passage is connected to deflector hole under the ipsilateral lower cover, the other end of the same radial passage with it is described
Lower drainage trough connects；The bottom surface of first groove opens up first through hole, and the first through hole is penetrated through to the lower drainage trough；
Upper cover, the upper cover are placed on the lower cover；The upper surface of the upper cover is the conical surface, opens up upper cover in the middle part of the conical surface
Upper deflector hole, the upper deflector hole of covering are penetrated through to the lower surface of the upper cover；The upper surface of the upper cover also opens up on several
Lower deflector hole is covered, deflector hole respectively corresponds deflector hole under several lower covers under several upper covers；The lower surface of the upper cover
Several baffle convex ribs are opened up, and the baffle convex ribs for being located at left side are higher than remaining described baffle convex ribs；The upper cover
Lower surface is additionally provided with one second annular protrusion, and second annular protrusion is located at the outside of several baffle convex ribs；Several institutes
It states between baffle convex ribs and second annular protrusion embedded with the first annular protrusion；
First filter membrane, first filter membrane are set to the bottom surface of first groove；The baffle positioned at left side
The lower end of convex ribs presses on the left side of the upper surface of first filter membrane；
Second filter membrane, second filter membrane are set to the bottom surface of the first annular groove.
A kind of above-mentioned filter, wherein the upper cover further include: four extensions, two extending parts in first straight line,
Another two extending part is in second straight line, the first straight line and second straight line is perpendicular and same plane；Each institute
The one end for stating extension is connected to the upper inner wall for covering deflector hole, and the other end of the same extension is respectively provided with
There is arc notch；Four arc notch of four extensions are respectively positioned on the edge of same circle；And each extension
Lower end surface it is concordant with the lower surface of the upper cover.
Above-mentioned a kind of filter, wherein the upper cover further include: four strip bulges, four strip bulges are respectively set
In the lower end surface of four extensions.
Above-mentioned a kind of filter, wherein a downward protrusion knot is provided on the left of the outer rim of the lower surface of the upper cover
Structure is provided with a groove structure on the left of the outer rim of the upper surface of the lower cover；The bulge-structure is embedded in the groove structure
It is interior.
Above-mentioned a kind of filter, wherein the lower cover further include: several clamping cylinders, several clamping cylinder circumference
Array is set to the inner wall of first groove.
Above-mentioned a kind of filter, wherein the lower cover further include: cross structure, the cross structure are set to described
In one through-hole, and the left side of the cross structure is lower than the right side on the inclined-plane；The cross structure and four extensions
It is corresponding.
Above-mentioned a kind of filter, wherein the inclined seal platform of an annular, the inclined seal are provided on the inclined-plane
Pad is equipped with first filter membrane on platform.
A kind of above-mentioned filter, wherein the inner ring of the bottom surface of the first annular groove is provided with a first annular washer,
The outer ring of the bottom surface of the first annular groove is provided with one second ring washer；The inner ring of second filter membrane is padded on described
First annular washer, the outer ring of second filter membrane are padded on second ring washer.
Above-mentioned a kind of filter, which is characterized in that first filter membrane is nanoscale diaphragm, and second filter membrane is
Micron order diaphragm.
A kind of working method of filter, which is characterized in that including any one of the above filter, the working method:
Step 1: first filter membrane is opened up due to negative pressure when taking liquid；The left side of first filter membrane at this time
It will receive compressing for the longest baffle convex ribs in left side, medical fluid can be convex via first groove and remaining described baffle
It in the interstitial flow to first groove that muscle is formed, then flows in syringe via the upper deflector hole of covering, completion takes medicine
Movement；
Step 2: first filter membrane is oppressed due to positive pressure in the inclined seal platform, thus close when fluid injection
It closes；At this point, medical fluid will be by deflector hole under the conical surface of the upper surface of the upper cover, the upper cover, second filter membrane, described
Deflector hole, the radial passage to the lower drainage trough under lower cover, to flow out the syringe.
With above technical scheme, can reach it is following the utility model has the advantages that
First filter membrane of the invention is 10 nanoscales, has the characteristics that hydrophily and hydrophobicity, is convenient for medicine at injection initial stage
Unfiltered medical fluid is discharged in advance inside gas and accurate filter in liquid liquid storage chamber.
The present invention air that liquid storage chamber easily enters when extracting medical fluid, the upper surface of accurate filter are that the conical surface is convenient for gas collection
Emptying.
Inclined seal platform is covered under the present invention, a baffle convex ribs built in upper cover are down along stretching to the first filter membrane
Side so that the first filter membrane of positioning, and the opening and closing and exhaust of the first filter membrane being convenient for and received
Meter level filtering.
Detailed description of the invention
Fig. 1 is a kind of cross-sectional view of filter of the invention；
Fig. 2 is the enlarged drawing of the A of Fig. 1；
Fig. 3 is the enlarged drawing of the B of Fig. 1；
Fig. 4 is a kind of perspective view of the overlook direction of the lower cover of filter of the invention；
Fig. 5 is the perspective view of a kind of lower cover of filter of the invention and the overlook direction of the second filter membrane；
Fig. 6 is the perspective view of a kind of lower cover of filter of the invention and the overlook direction of the second filter membrane；
Fig. 7 is a kind of perspective view of the overlook direction of the upper cover of filter of the invention；
Fig. 8 is a kind of perspective view for looking up direction of the upper cover of filter of the invention.
In attached drawing:
1, lower cover；11, the first groove；111, first through hole；12, first annular groove；121, deflector hole under lower cover；122,
First annular washer；123, the second ring washer；13, first annular protrusion；14, lower drainage trough；15, radial passage；16, groove
Structure；17, clamping cylinder；18, cross structure；19, inclined seal platform；2, upper cover；21, upper to cover deflector hole；22, under upper cover
Deflector hole；23, baffle convex ribs；24, the second annular protrusion；25, extension；251, arc notch；26, strip bulge；27, raised
Structure；3, the first filter membrane；4, the second filter membrane.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples, but not as the limitation of the invention.
Fig. 1 is a kind of cross-sectional view of filter of the invention；Fig. 2 is the enlarged drawing of the A of Fig. 1；Fig. 3 is the amplification of the B of Fig. 1
Figure；Fig. 4 is a kind of perspective view of the overlook direction of the lower cover of filter of the invention；Fig. 5 is a kind of filter of the invention
The perspective view of the overlook direction of lower cover and the second filter membrane；Fig. 6 is the lower cover and the second filter membrane of a kind of filter of the invention
Overlook direction perspective view；Fig. 7 is a kind of perspective view of the overlook direction of the upper cover of filter of the invention；Fig. 8 is this hair
A kind of perspective view for looking up direction of the upper cover of bright filter.
Referring to Figure 1 to shown in Fig. 8, in a kind of preferred embodiment, a kind of filter, comprising:
The upper surface of lower cover 1, lower cover 1 is equipped with the first groove 11 and first annular groove 12；First groove 11 is located at lower cover 1
Middle part, first annular groove 12 is located at the outside of the first groove 11, formed between first annular groove 12 and the first groove 11
One first annular raised 13；The bottom surface of first groove 11 is inclined-plane, and the left side on inclined-plane is lower than the right side on inclined-plane；First annular groove
12 bottom surface opens up deflector hole 121 under several lower covers of circumference array, under several lower covers under the perforation to lower cover 1 of deflector hole 121
Surface；The lower surface of lower cover 1 is the conical surface, and a plane is arranged in the middle part of the conical surface, and plane sets a up-narrow and down-wide lower drainage trough 14；
The conical surface opens up several radial passages 15 of circumference array, and deflector hole 121 connects under one end of each radial passage 15 and ipsilateral lower cover
Logical, the other end of same radial passage 15 connects with lower drainage trough 14；The bottom surface of first groove 11 opens up first through hole 111,
First through hole 111 is penetrated through to lower drainage trough 14.
Upper cover 2, upper cover 2 are placed on lower cover 1；The upper surface of upper cover 2 is the conical surface, opens up in the middle part of the conical surface and covers deflector hole
21, it is upper to cover the perforation of deflector hole 21 to the lower surface of upper cover 2；The upper surface of upper cover 2 also opens up under several upper covers of circumference array
Deflector hole 22, deflector hole 22 respectively corresponds deflector hole 121 under several lower covers under several upper covers；The lower surface of upper cover 2 opens up circumference
Several baffle convex ribs 23 of array, several baffle convex ribs 23 cover deflector hole 21 around upper, and are located at the baffle convex ribs in left side
23 are higher than remaining baffle convex ribs 23；The lower surface of upper cover 2 is additionally provided with one second annular protrusion 24, and the second annular protrusion 24 is located at
The outside of several baffle convex ribs 23；First annular raised 13 are embedded between several baffle convex ribs 23 and the second annular protrusion 24.
First filter membrane 3, the first filter membrane 3 are set to the bottom surface of the first groove 11；Baffle convex ribs 23 positioned at left side
Lower end presses on the left side of the upper surface of the first filter membrane 3.
Second filter membrane 4, the second filter membrane 4 are set to the bottom surface of first annular groove 12, the second filter membrane 4 and upper cover 2
Lower surface between there are gaps.
The above is only preferred embodiments of the present invention, are not intended to limit the implementation manners and the protection scope of the present invention.
Further, in a kind of preferred embodiment, upper cover 2 further include: four extensions 25, it is straight that two extensions 25 are located at first
Line, another two extension 25 are located at second straight line, first straight line and second straight line is perpendicular and same plane；Each extension 25
One end is connected to the inner wall for covering deflector hole 21, and the other end of same extension 25 is provided with arc notch 251；
Four arc notch 251 of four extensions 25 are respectively positioned on the edge of same circle；And the lower end surface of each extension 25 and upper cover 2
Lower surface is concordant.
Further, in a kind of preferred embodiment, upper cover 2 further include: four strip bulges 26, four strip bulges 26 are set respectively
It is placed in the lower end surface of four extensions 25.
Further, in a kind of preferred embodiment, a downward protrusion is provided on the left of the outer rim of the lower surface of upper cover 2
Structure 27 is provided with a groove structure 16 on the left of the outer rim of the upper surface of lower cover 1；Bulge-structure 27 is embedded in groove structure 16
It is interior.
Further, in a kind of preferred embodiment, lower cover 1 further include: several clamping cylinders 17, several circles of clamping cylinder 17
All arrays are set to the 11 (inner wall of i.e. first annular raised 13) of the first groove.
Further, in a kind of preferred embodiment, lower cover 1 further include: cross structure 18, cross structure 18 are set to first
In through-hole 111, and the thickness in the left side of cross structure 18 is lower than the thickness on the right side of cross structure 18；Cross structure 18 and four
Extension 25 is corresponding.
Further, the inclined seal platform 19 of an annular, inclined seal are provided in a kind of preferred embodiment, on inclined-plane
Pad is equipped with the first filter membrane 3 on platform 19.
Further, in a kind of preferred embodiment, it is first annular that the inner ring of the bottom surface of first annular groove 12 is provided with one
Washer 122, the outer ring of the bottom surface of first annular groove 12 are provided with one second ring washer 123；The inner ring pad of second filter membrane 3
In first annular washer 122, the outer ring of the second filter membrane 3 is padded on the second ring washer 123.
Further, in a kind of preferred embodiment, the upper surface of the upper cover 2 is the conical surface, the conical surface can be made to retain certain
Air, to help syringe to be cleared up by medical fluid at needle point by the micro air when the piston in syringe is pushed.
Further, in a kind of preferred embodiment, the first filter membrane 3 is nanoscale diaphragm, and the second filter membrane 3 is micron order
Diaphragm.Specifically, the first filter membrane 3 has the characteristics that hydrophily and hydrophobicity, at injection initial stage convenient for the gas in medical fluid liquid storage chamber
Unfiltered medical fluid is discharged in advance inside body and built-in liquid medicine filtering device.
In addition to the implementation, the present invention also has following working method:
As shown in Figure 1, being respectively formed independent upper and lower two flow-guiding channels after upper cover 2 and lower cover 1 connect；By lower drainage
Slot 14, first through hole 111, the first groove 11 and upper deflector hole 21 of covering form upper flow-guiding channel；By the upper surface of upper cover 2
Deflector hole 121 forms lower flow-guiding channel under deflector hole 22 and lower cover under the conical surface, upper cover；
When drawing medical fluid, due to the suction function of syringe, the first filter membrane 3 is slightly opened upwards, at this time the first filtering
The left side of film 3 will receive compressing for the longest baffle convex ribs 23 in left side, can flow to the small direction of its resistance according to medical fluid
Principle, medical fluid can be via the first groove 11 and remaining (gears in addition to the longest baffle convex ribs 23 in left side of baffle convex ribs 23
Piece convex ribs 23) it is formed in interstitial flow to the first groove 11, then flowed in syringe via upper deflector hole 21 of covering, completion takes medicine
Movement.
When liquid medicine injection, due to the positive pressure of syringe, the nanofiltration film of the first filter membrane 3 can be oppressed in inclining
Tiltedly sealing platform 19, so that (liquid storage chamber refers under closed rear first filter membrane 3 of the first filter membrane 3 liquid storage chamber while closed
The cavity that side and syringe are formed) in filtered medical fluid and air exclude to lose in advance；And the first filter membrane 3, which can play, to be received
Meter level filtering；At this point, medical fluid will be by under deflector hole 22, the second filter membrane 4, lower cover under the conical surface of the upper surface of upper cover 2, upper cover
Deflector hole 121 and radial passage 15 to lower drainage trough 14 flow out syringe.Since medical fluid passes through micron-sized second filter membrane 4,
Impurity in filtered medical fluid and particle will be excluded.
The above is only preferred embodiments of the present invention, are not intended to limit the implementation manners and the protection scope of the present invention, right
For those skilled in the art, it should can appreciate that and all replace with being equal made by description of the invention and diagramatic content
It changes and obviously changes obtained scheme, should all be included within the scope of the present invention.
Claims (10)
1. a kind of filter characterized by comprising
The upper surface of lower cover, the lower cover is equipped with the first groove and first annular groove；First groove is located at the lower cover
Middle part, the first annular groove is located at the outside of first groove, the first annular groove and first groove
Between formed a first annular protrusion；The bottom surface of first groove is inclined-plane, and the left side on the inclined-plane is lower than the inclined-plane
Right side；The bottom surface of the first annular groove opens up deflector hole under several lower covers, and deflector hole is penetrated through to institute under several lower covers
State the lower surface of lower cover；Drainage trough is arranged in the lower surface of the lower cover；The conical surface opens up several radial passages, Mei Yisuo
The one end for stating radial passage is connected to deflector hole under the ipsilateral lower cover, the other end of the same radial passage with it is described under draw
Chute connects；The bottom surface of first groove opens up first through hole, and the first through hole is penetrated through to the lower drainage trough；
Upper cover, the upper cover are placed on the lower cover；The upper surface of the upper cover is the conical surface, opens up in the middle part of the conical surface and leads on lid
Discharge orifice, the upper deflector hole of covering are penetrated through to the lower surface of the upper cover；The upper surface of the upper cover also opens up under several upper covers
Deflector hole, deflector hole respectively corresponds deflector hole under several lower covers under several upper covers；The lower surface of the upper cover opens up
Several baffle convex ribs, and the baffle convex ribs for being located at left side are higher than remaining described baffle convex ribs；The following table of the upper cover
Face is additionally provided with one second annular protrusion, and second annular protrusion is located at the outside of several baffle convex ribs；Several gears
The first annular protrusion is embedded between piece convex ribs and second annular protrusion；
First filter membrane, first filter membrane are set to the bottom surface of first groove；The baffle convex ribs positioned at left side
Lower end press on first filter membrane upper surface left side；
Second filter membrane, second filter membrane are set to the bottom surface of the first annular groove.
2. a kind of filter according to claim 1, which is characterized in that the upper cover further include: four extensions prolong described in two
Extending portion is located at first straight line, and for another two extending part in second straight line, the first straight line and the second straight line are perpendicular
And same plane；One end of each extension is connected to the upper inner wall for covering deflector hole, same described to prolong
The other end of extending portion is provided with arc notch；Four arc notch of four extensions are respectively positioned on the edge of same circle；
And the lower end surface of each extension is concordant with the lower surface of the upper cover.
3. a kind of filter according to claim 2, which is characterized in that the upper cover further include: four strip bulges, described in four
Strip bulge is respectively arranged at the lower end surface of four extensions.
4. a kind of filter according to claim 1, which is characterized in that the left side of the outer rim of the lower surface of the upper cover is arranged
There is a downward bulge-structure, is provided with a groove structure on the left of the outer rim of the upper surface of the lower cover；The bulge-structure
In the groove structure.
5. a kind of filter according to claim 1, which is characterized in that the lower cover further include: several clamping cylinders, it is several
The clamping cylinder circumference array is set to the inner wall of first groove.
6. a kind of filter according to claim 2, which is characterized in that the lower cover further include: cross structure, the cross
Structure setting is in the first through hole, and the thickness in the left side of the cross structure is lower than the right side of the cross structure
Thickness；The cross structure is corresponding with four extensions.
7. a kind of filter according to claim 1, which is characterized in that be provided with the inclined seal of an annular on the inclined-plane
Platform, pad is equipped with first filter membrane on the inclined seal platform.
8. a kind of filter according to claim 1, which is characterized in that the inner ring of the bottom surface of the first annular groove is arranged
There is a first annular washer, the outer ring of the bottom surface of the first annular groove is provided with one second ring washer；Second mistake
The inner ring of filter membrane is padded on the first annular washer, and the outer ring of second filter membrane is padded on second ring washer.
9. a kind of filter according to claim 1, which is characterized in that first filter membrane is nanoscale diaphragm, described
Second filter membrane is micron order diaphragm.
10. a kind of working method of filter, which is characterized in that including any one filter of claim 1 to 9, the work
Make method:
Step 1: first filter membrane is opened up due to negative pressure when taking liquid；The left side of first filter membrane can be by this time
The longest baffle convex ribs to left side compress, and medical fluid can be via first groove and remaining described baffle convex ribs shape
At interstitial flow to first groove in, then flow in syringe via the upper deflector hole of covering, completion takes medicine to act；
Step 2: first filter membrane is oppressed due to positive pressure in the inclined seal platform, thus closed when fluid injection
Simultaneously intracavitary filtered medical fluid and air are excluded to lose in advance；At this point, medical fluid will be by the upper surface of the upper cover
Deflector hole under deflector hole, second filter membrane, the lower cover under the conical surface, the upper cover, the radial passage are to drawing under described
Chute, to flow out the syringe.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019204010528 | 2019-03-27 | ||
| CN201920401052 | 2019-03-27 | ||
| CN2019204010621 | 2019-03-27 | ||
| CN201920401062 | 2019-03-27 |
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| Publication Number | Publication Date |
|---|---|
| CN110237367A true CN110237367A (en) | 2019-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920826418.6U Expired - Fee Related CN211486010U (en) | 2019-03-27 | 2019-06-03 | Filter syringe |
| CN201910478530.XA Pending CN110302450A (en) | 2019-03-27 | 2019-06-03 | A kind of filtration syringe and its working method |
| CN201920825659.9U Expired - Fee Related CN211188585U (en) | 2019-03-27 | 2019-06-03 | Filter |
| CN201910477841.4A Pending CN110237367A (en) | 2019-03-27 | 2019-06-03 | A kind of filter and its working method |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920826418.6U Expired - Fee Related CN211486010U (en) | 2019-03-27 | 2019-06-03 | Filter syringe |
| CN201910478530.XA Pending CN110302450A (en) | 2019-03-27 | 2019-06-03 | A kind of filtration syringe and its working method |
| CN201920825659.9U Expired - Fee Related CN211188585U (en) | 2019-03-27 | 2019-06-03 | Filter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111991230A (en) * | 2020-08-31 | 2020-11-27 | 石家庄瑞祥电子科技有限公司 | Air filter of dispensing machine |
| CN113350619A (en) * | 2021-07-08 | 2021-09-07 | 上海振浦医疗设备有限公司 | Built-in membrane filtering injector |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211486010U (en) * | 2019-03-27 | 2020-09-15 | 上海振浦医疗设备有限公司 | Filter syringe |
| CN112402051B (en) * | 2020-12-01 | 2021-07-20 | 韩笑 | Medical anesthetic needle based on life science and technology and use method thereof |
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| US20140005612A1 (en) * | 2012-06-27 | 2014-01-02 | Industrie Borla S.P.A. | One-way valve for medical lines |
| CN106075660A (en) * | 2016-06-20 | 2016-11-09 | 浙江信纳医疗器械科技有限公司 | Filtration syringe |
| CN106310457A (en) * | 2015-06-23 | 2017-01-11 | 上海振浦医疗设备有限公司 | Disposable precision filter syringe and manufacturing method thereof |
| WO2017119693A1 (en) * | 2016-01-07 | 2017-07-13 | 고종원 | Disposable syringe having safety filter function |
| 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 |
| CN206655287U (en) * | 2017-04-10 | 2017-11-21 | 沈杰 | A kind of anti-jamming mechanism for being used to stop that long hair blocks bathroom sewer |
| CN108295340A (en) * | 2018-02-26 | 2018-07-20 | 上海振浦医疗设备有限公司 | A kind of syringe with fine filtering function |
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| CN2678665Y (en) * | 2003-11-26 | 2005-02-16 | 吕海洋 | Safety syringe having automatic protecting sleeve |
| CN1788805A (en) * | 2004-12-17 | 2006-06-21 | 黄仲荣 | Needle structure possessing extended protective cover |
| US9907915B2 (en) * | 2014-10-01 | 2018-03-06 | Vantex Biotechnology Co., Ltd. | Pin head structure of safety syringe |
| CN211486010U (en) * | 2019-03-27 | 2020-09-15 | 上海振浦医疗设备有限公司 | Filter syringe |
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2019
- 2019-06-03 CN CN201920826418.6U patent/CN211486010U/en not_active Expired - Fee Related
- 2019-06-03 CN CN201910478530.XA patent/CN110302450A/en active Pending
- 2019-06-03 CN CN201920825659.9U patent/CN211188585U/en not_active Expired - Fee Related
- 2019-06-03 CN CN201910477841.4A patent/CN110237367A/en active Pending
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| US4317726A (en) * | 1981-02-12 | 1982-03-02 | The United States Of America As Represented By The Secretary Of The Army | Microbial filter assembly |
| US20140005612A1 (en) * | 2012-06-27 | 2014-01-02 | Industrie Borla S.P.A. | One-way valve for medical lines |
| CN203315468U (en) * | 2013-05-13 | 2013-12-04 | 周雪 | Auto-disable syringe |
| CN106310457A (en) * | 2015-06-23 | 2017-01-11 | 上海振浦医疗设备有限公司 | Disposable precision filter syringe and manufacturing method thereof |
| WO2017119693A1 (en) * | 2016-01-07 | 2017-07-13 | 고종원 | Disposable syringe having safety filter function |
| CN106075660A (en) * | 2016-06-20 | 2016-11-09 | 浙江信纳医疗器械科技有限公司 | Filtration syringe |
| CN206655287U (en) * | 2017-04-10 | 2017-11-21 | 沈杰 | A kind of anti-jamming mechanism for being used to stop that long hair blocks bathroom sewer |
| 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 |
| CN108295340A (en) * | 2018-02-26 | 2018-07-20 | 上海振浦医疗设备有限公司 | A kind of syringe with fine filtering function |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111991230A (en) * | 2020-08-31 | 2020-11-27 | 石家庄瑞祥电子科技有限公司 | Air filter of dispensing machine |
| CN111991230B (en) * | 2020-08-31 | 2024-04-16 | 石家庄博普信息科技有限公司 | Air filter of dispensing machine |
| CN113350619A (en) * | 2021-07-08 | 2021-09-07 | 上海振浦医疗设备有限公司 | Built-in membrane filtering injector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN211188585U (en) | 2020-08-07 |
| CN110302450A (en) | 2019-10-08 |
| CN211486010U (en) | 2020-09-15 |
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Application publication date: 20190917 |
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