CN109045403A - A kind of detachable infusion apparatus filter - Google Patents
A kind of detachable infusion apparatus filter Download PDFInfo
- Publication number
- CN109045403A CN109045403A CN201810883940.8A CN201810883940A CN109045403A CN 109045403 A CN109045403 A CN 109045403A CN 201810883940 A CN201810883940 A CN 201810883940A CN 109045403 A CN109045403 A CN 109045403A
- Authority
- CN
- China
- Prior art keywords
- filter
- interconnecting piece
- film
- upper housing
- infusion apparatus
- 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.)
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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
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
-
- 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
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
- A61M2005/1657—Filter with membrane, e.g. membrane, flat sheet type infusion filter
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- 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)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a kind of detachable infusion apparatus filters, and including the upper conduit and downcomer for connecting with perfusion tube, the filter includes upper housing and lower case, are detachably connected between the upper housing and lower case；It is equipped with a filter membrane in the upper housing, secondary filter film is folded between the upper housing and lower case, the secondary filter film is detachable setting；The top of the upper housing is equipped with several gas vents；Filter membrane is coarse filtration film, may filter that particle of the diameter at 20 microns or more in medical fluid；The secondary filter film is secondary filter film, may filter that particle of the diameter between 5~20 microns in medical fluid.Filter for infusion provided by the invention is high with filter efficiency, filter effect is good, can meet the advantages such as a variety of use demands.
Description
Technical field
The present invention relates to a kind of detachable infusion apparatus filters, belong to field of medical products.
Background technique
Due to there are a large amount of various particles in medical fluid, so infusion apparatus is designed with liquid medicine filter.General infusion apparatus institute
The particle of 20 microns of liquid medicine filter intelligent filtering diameter or more, filter membrane used are coarse filtration film.And it is deposited in medical fluid
Most in 5~20 microns of particle number of diameter, harm is maximum.Therefore, with 5 microns of filter diameter of energy or more of particle mistake
The infusion apparatus of filter membrane is known as precision filter infusion set, but the filter opening very little of secondary filter, influences the flow and flow rate of infusion.
Application No. is a kind of double-layer precision filter infusion set is disclosed in 200910253590.8 patent application, by plug bottle
The double-layer precision filter infusion set of the compositions such as needle, dropping funnel, liquid medicine filter, conduit, transfusion needle, the filter membrane of the liquid medicine filter
A minimum of two layers, upper layer is common coarse filtration film, and lower layer is secondary filter film.Common coarse filtration film can divide with secondary filter film
Opening can also be overlapped, but it is more preferable to overlap.Liquid medicine filter can be set at any position of infusion channel, be existed with setting
More than downcomer liquid inlet preferably, there is automatic liquid-stopping effect.Above-mentioned double-layer precision filter infusion set, mainly by by coarse filtration
Film and the superposition of secondary filter film use, to reach the requirement of secondary filter；But it is superimposed on two layers the filter efficiency of the filter used
Very low, the rate of filtration is also very slow, is unable to satisfy existing use demand.
Application No. is disclosed in 201320723753.6 utility model it is a kind of cross filter infusion apparatus, including with upper conduit phase
Upper filter chamber even and the lower filter chamber being connected with downcomer；Filter core is equipped in the lower filter chamber, the filter core top surface is equipped with
Coarse filtration film, the coarse filtration film are communicated with upper filter chamber；The surrounding of the filter core and bottom surface are respectively equipped with nanoparticle filter membrane,
The nanoparticle filter membrane is communicated with lower filter chamber.The utility model crosses filter infusion apparatus by filtering twice: a coarse filtration
With a secondary filter, preferable filter effect can be obtained.But the filter infusion apparatus of crossing proposed in above-mentioned utility model is whole
Body setting, flexibility is inadequate when use, is also unable to satisfy different use demands.
Summary of the invention
In view of the deficiencies of the prior art, that the invention proposes a kind of filter efficiencies is high, filter effect is good, can meet a variety of make
With the filter for infusion of demand.
The technical proposal for solving the technical problem of the invention is: a kind of detachable infusion apparatus filter, including with
In the upper conduit and downcomer that connect with perfusion tube, the filter includes upper housing and lower case, the upper housing and lower casing
It is to be detachably connected between body；It is equipped with a filter membrane in the upper housing, is folded with two between the upper housing and lower case
Secondary filter membrane, the secondary filter film are detachable setting；The top of the upper housing is equipped with several gas vents；Described one
Secondary filter membrane is coarse filtration film, may filter that particle of the diameter at 20 microns or more in medical fluid；The secondary filter film is essence
Close filter membrane may filter that particle of the diameter between 5~20 microns in medical fluid.
Further, in the upper housing using a filter membrane as boundary, be divided into filter chamber and lower filter chamber, it is described descended
The inside necking of the shell of filter chamber forms interconnecting piece；The lower case is equipped with lower interconnecting piece, the upper interconnecting piece and lower connection
Portion is detachably connected.
Further, the inside of the lower interconnecting piece is equipped with filter membrane mounting platform, and the secondary filter film is placed in described
On filter membrane mounting platform, the top of the secondary filter film is compressed by the upper interconnecting piece.
Further, it is connected through a screw thread between the upper interconnecting piece and lower interconnecting piece.
Further, the outer wall of the upper interconnecting piece is equipped with upper screw thread, and the inner wall of the lower interconnecting piece is equipped with and institute
State the lower screw thread that screw thread matches.
It further, is detachably to fasten between the upper interconnecting piece and lower interconnecting piece；The periphery set of the lower interconnecting piece
Equipped with fixed ring, the fixed ring makes the upper interconnecting piece and lower interconnecting piece keep close buckling state.
Further, the fixed ring is flexible fastening ring.
Further, the secondary filter film is nanoparticle filter membrane.
The beneficial effects of the present invention are: compared with prior art, the detachable infusion apparatus filter of offer of the invention
Mainly there is following advantage:
1) for filter by filtering twice, a coarse filtration and a secondary filter, filter effect are more preferable；
2) gas vent is arranged in the top of filter chamber on, has degassing function, and filtering can be made more smooth；
3) upper housing and lower case are detachable setting, are convenient for changing transfusion needle, and transfusion needle is that setting is connect with lower case, when
When transfusion needle is contaminated, lower case can be dismantled and replaced, not need to replace entire infusion apparatus, save the cost；
4) secondary filter film is detachable setting, under the use occasion that some only need coarse filtration, can remove secondary filter film；
Under the use occasion that some need secondary filter, secondary filter film is installed, to meet different filtration needs, reduces and uses
Cost improves service efficiency；
5) since secondary filter membrane filtration hole is smaller, when the molecule in medical fluid is more, it is easy blocking filter opening, works as secondary filter
When the filter opening blocking of film, replaceable secondary filter film is without replacing entire filter, to reduce use cost.
Detailed description of the invention
Fig. 1 is the cross section structure schematic diagram of the filter provided in the embodiment of the present invention 1.
Fig. 2 is the structural decomposition diagram of the filter provided in the embodiment of the present invention 1.
Fig. 3 is the cross section structure schematic diagram of the filter provided in the embodiment of the present invention 2.
Fig. 4 is the cross section structure schematic diagram of the filter provided in the embodiment of the present invention 3.
Fig. 5 is the structural decomposition diagram of the filter provided in the embodiment of the present invention 3.
Fig. 6 is the cross section structure schematic diagram of the filter provided in the embodiment of the present invention 4.
Wherein, the upper conduit of 1-；2- gas vent；3- upper housing；Filter membrane of 4-；5-1- flexible fastening ring；5-2- screw thread；
The upper screw thread of 5-2-1-；Screw thread under 5-2-2-；Filter chamber under 6-；7- lower case；8- downcomer；9- secondary filter film；10- filter membrane peace
Assembling platform；Interconnecting piece under 11-；The upper interconnecting piece of 12-；The upper filter chamber of 13-.
Specific embodiment
The present invention is further illustrated below by specific embodiment.But these examples are merely to illustrate the present invention and do not have to
In limiting the scope of the invention.
Embodiment 1
As illustrated in fig. 1 and 2, a kind of infusion apparatus filter, including the upper conduit 1 and downcomer 8 for being connect with perfusion tube, institute
Stating filter includes upper housing 3 and lower case 7, is detachably fastened between the upper housing 3 and lower case 7；The lower case 7
Periphery is equipped with flexible fastening ring 5-1, and the flexible fastening ring 5-1 makes the upper housing 3 and lower case 7 keep closely fastening shape
State；It is equipped with a filter membrane 4 in the upper housing 3, the upper housing 3 and 7 joint of lower case are folded with secondary filter film 9,
The secondary filter film 9 is detachable setting；The top of the upper housing 3 is equipped with several gas vents 2；The primary filtering
Film 4 is coarse filtration film, may filter that particle of the diameter at 20 microns or more in medical fluid；The secondary filter film 9 is accurate mistake
Filter membrane may filter that particle of the diameter between 5~20 microns in medical fluid.The secondary filter film 9 is nanoparticle filter membrane.
With a filter membrane 4 it is boundary in the upper housing 3, is divided into filter chamber 13 and lower filter chamber 6, the shell of the lower filter chamber 6
Inside necking forms interconnecting piece 12；The lower case 7 is equipped with lower interconnecting piece 11, and 11 sets of the lower interconnecting piece is buckled on described
The periphery of interconnecting piece 12.The inside of the lower interconnecting piece 11 is equipped with filter membrane mounting platform 10, and the secondary filter film 9 is placed in institute
It states on filter membrane mounting platform 10, the top of the secondary filter film 9 is compressed by the upper interconnecting piece 12.
Embodiment 2
As shown in figure 3, a kind of infusion apparatus filter, described including the upper conduit 1 and downcomer 8 for connecting with perfusion tube
Filter includes upper housing 3 and lower case 7, is detachably fastened between the upper housing 3 and lower case 7；Outside the lower case 7
It encloses and is equipped with flexible fastening ring 5-1, the flexible fastening ring 5-1 makes the upper housing 3 and lower case 7 keep close buckling state；
A filter membrane 4 is equipped in the upper housing 3, the top of the upper housing 3 is equipped with several gas vents 2；The primary filtering
Film 4 is coarse filtration film, may filter that particle of the diameter at 20 microns or more in medical fluid.With a filter membrane 4 in the upper housing 3
For boundary, it is divided into filter chamber 13 and lower filter chamber 6, the inside necking of shell of the lower filter chamber 6 forms interconnecting piece 12；It is described
Lower case 7 is equipped with lower interconnecting piece 11, and 11 sets of the lower interconnecting piece is buckled in the periphery of the upper interconnecting piece 12.
Embodiment 3
As shown in Figures 4 and 5, a kind of detachable infusion apparatus filter, including for being connect with perfusion tube upper conduit 1 and under lead
Pipe 8, the filter include upper housing 3 and lower case 7, and it is detachable to pass through screw thread 5-2 between the upper housing 3 and lower case 7
Connection；It is equipped with a filter membrane 4 in the upper housing 3, is folded with secondary filter film 9 between the upper housing 3 and lower case 7,
The secondary filter film 9 is detachable setting；The top of the upper housing 3 is equipped with several gas vents 2；The primary filtering
Film 4 is coarse filtration film, may filter that particle of the diameter at 20 microns or more in medical fluid；The secondary filter film 9 is accurate mistake
Filter membrane is nanoparticle filter membrane, may filter that particle of the diameter between 5~20 microns in medical fluid.With one in the upper housing 3
Secondary filter membrane 4 is boundary, is divided into filter chamber 13 and lower filter chamber 6, the inside necking of shell of the lower filter chamber 6 forms connection
Portion 12；The lower case 7 is equipped with lower interconnecting piece 11, and the upper interconnecting piece 12 is connected with lower interconnecting piece 11 by screw thread 5-2.
The outer wall of the upper interconnecting piece 12 is equipped with upper screw thread 5-2-1, and the inner wall of the lower interconnecting piece 11 is equipped with and the upper screw thread
The upper screw thread 5-2-2 that 5-2-1 matches.The inside of the lower interconnecting piece 11 is equipped with filter membrane mounting platform 10, the secondary filter
Film 9 is placed on the filter membrane mounting platform 10, and the top of the secondary filter film 9 is compressed by the upper interconnecting piece 12.
Embodiment 4
As shown in fig. 6, a kind of detachable infusion apparatus filter, including the upper conduit 1 and downcomer for being connect with perfusion tube
8, the filter includes upper housing 3 and lower case 7, is detachably connected between the upper housing 3 and lower case 7 by screw thread 5-2
It connects；A filter membrane 4 is equipped in the upper housing 3；The top of the upper housing 3 is equipped with several gas vents 2；The primary mistake
Filter membrane 4 is coarse filtration film, may filter that particle of the diameter at 20 microns or more in medical fluid.Once to filter in the upper housing 3
Film 4 is boundary, is divided into filter chamber 13 and lower filter chamber 6, the inside necking of shell of the lower filter chamber 6 forms interconnecting piece 12；
The lower case 7 is equipped with lower interconnecting piece 11, and the upper interconnecting piece 12 is connected with lower interconnecting piece 11 by screw thread 5-2.It is described
The outer wall of upper interconnecting piece 12 is equipped with upper screw thread 5-2-1, and the inner wall of the lower interconnecting piece 11 is equipped with and the upper screw thread 5-2-1
The upper screw thread 5-2-2 to match.
The above embodiments are only used to illustrate the present invention, and not limitation of the present invention, in relation to the common of technical field
Technical staff can also make a variety of changes and modification without departing from the spirit and scope of the present invention, therefore all
Equivalent technical solution also belongs to scope of the invention, and scope of patent protection of the invention should be defined by the claims.
Claims (8)
1. a kind of detachable infusion apparatus filter, including the upper conduit and downcomer for connecting with perfusion tube, feature exists
In: the filter includes upper housing and lower case, is detachably connected between the upper housing and lower case；The upper housing
It is inside equipped with a filter membrane, secondary filter film is folded between the upper housing and lower case, the secondary filter film is can
Disassembly setting；The top of the upper housing is equipped with several gas vents；Filter membrane is coarse filtration film, may filter that medicine
Particle of the diameter at 20 microns or more in liquid；The secondary filter film is secondary filter film, may filter that diameter is 5 in medical fluid
Particle between~20 microns.
2. a kind of detachable infusion apparatus filter as described in claim 1, it is characterised in that: with primary in the upper housing
Filter membrane is boundary, is divided into filter chamber and lower filter chamber, and the inside necking of shell of the lower filter chamber forms interconnecting piece；It is described
Lower case is equipped with lower interconnecting piece, and the upper interconnecting piece is detachably connected with lower interconnecting piece.
3. a kind of detachable infusion apparatus filter as claimed in claim 2, it is characterised in that: the inside of the lower interconnecting piece
Equipped with filter membrane mounting platform, the secondary filter film is placed on the filter membrane mounting platform, the top of the secondary filter film
It is compressed by the upper interconnecting piece.
4. a kind of detachable infusion apparatus filter as claimed in claim 2 or claim 3, it is characterised in that: the upper interconnecting piece
It is connected through a screw thread between lower interconnecting piece.
5. a kind of detachable infusion apparatus filter as claimed in claim 4, it is characterised in that: the outer wall of the upper interconnecting piece
It is equipped with upper screw thread, the inner wall of the lower interconnecting piece is equipped with the lower screw thread to match with the upper screw thread.
6. a kind of detachable infusion apparatus filter as claimed in claim 2 or claim 3, it is characterised in that: the upper interconnecting piece and
It is detachably to fasten between lower interconnecting piece；The periphery of the lower interconnecting piece is arranged with fixed ring, and the fixed ring makes the upper company
Socket part and lower interconnecting piece keep close buckling state.
7. a kind of detachable infusion apparatus filter as claimed in claim 6, it is characterised in that: the fixed ring is that elasticity is solid
Determine ring.
8. a kind of detachable infusion apparatus filter as described in claim 1, it is characterised in that: the secondary filter film is
Nanoparticle filter membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810883940.8A CN109045403A (en) | 2018-08-06 | 2018-08-06 | A kind of detachable infusion apparatus filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810883940.8A CN109045403A (en) | 2018-08-06 | 2018-08-06 | A kind of detachable infusion apparatus filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109045403A true CN109045403A (en) | 2018-12-21 |
Family
ID=64831591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810883940.8A Withdrawn CN109045403A (en) | 2018-08-06 | 2018-08-06 | A kind of detachable infusion apparatus filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109045403A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110237589A (en) * | 2019-06-14 | 2019-09-17 | 江苏金塔药业有限公司 | Multi-layer filtrating equipment and filtration system |
| CN110302466A (en) * | 2019-07-23 | 2019-10-08 | 北京医院 | A kind of triple valve with filtering function |
| CN116099076A (en) * | 2023-02-23 | 2023-05-12 | 浙江灵洋医疗器械有限公司 | Precise filtering transfusion device |
-
2018
- 2018-08-06 CN CN201810883940.8A patent/CN109045403A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110237589A (en) * | 2019-06-14 | 2019-09-17 | 江苏金塔药业有限公司 | Multi-layer filtrating equipment and filtration system |
| CN110237589B (en) * | 2019-06-14 | 2022-03-01 | 江苏金塔药业有限公司 | Multilayer filter device and filter system |
| CN110302466A (en) * | 2019-07-23 | 2019-10-08 | 北京医院 | A kind of triple valve with filtering function |
| CN116099076A (en) * | 2023-02-23 | 2023-05-12 | 浙江灵洋医疗器械有限公司 | Precise filtering transfusion device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181221 |
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| WW01 | Invention patent application withdrawn after publication |