CN209075711U - A kind of detachable infusion apparatus filter - Google Patents
A kind of detachable infusion apparatus filter Download PDFInfo
- Publication number
- CN209075711U CN209075711U CN201821255567.3U CN201821255567U CN209075711U CN 209075711 U CN209075711 U CN 209075711U CN 201821255567 U CN201821255567 U CN 201821255567U CN 209075711 U CN209075711 U CN 209075711U
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- 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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Abstract
The utility model 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 utility model is high with filter efficiency, filter effect is good, can meet the advantages such as a variety of use demands.
Description
Technical field
The utility model 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 disclosing a kind of double-layer precision filter infusion set in 200910253590.8 utility model application, by
The double-layer precision filter infusion set of the compositions such as needle for inserting bottle, dropping funnel, liquid medicine filter, conduit, transfusion needle, the mistake of the liquid medicine filter
A minimum of two layers of filter membrane, upper layer is common coarse filtration film, and lower layer is secondary filter film.Common coarse filtration film and secondary filter film can
It can also be overlapped with separating, but it is more preferable to overlap.Liquid medicine filter can be set at any position of infusion channel, to set
It sets more than downcomer liquid inlet preferably, there is automatic liquid-stopping effect.Above-mentioned double-layer precision filter infusion set, mainly pass through 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 filtering of the filter used
Efficiency is very low, and 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.
Utility model content
In view of the deficiencies of the prior art, that the utility model proposes a kind of filter efficiencies is high, filter effect is good, it is more to meet
The filter for infusion of kind use demand.
The utility model technical scheme applied to solve the technical problem is: a kind of detachable infusion apparatus filter, packet
Include the upper conduit and downcomer for connecting with perfusion tube, the filter includes upper housing and lower case, the upper housing and
It is to be detachably connected between lower case；A filter membrane, sandwiched between the upper housing and lower case are equipped in the upper housing
There is secondary filter film, the secondary filter film is detachable setting；The top of the upper housing is equipped with several gas vents；It is described
A filter membrane be coarse filtration film, may filter that particle of the diameter at 20 microns or more in medical fluid；The secondary filter film
For secondary filter film, particle of the diameter between 5~20 microns in medical fluid may filter that.
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 utility model are: compared with prior art, the detachable infusion apparatus of the offer of the utility model
Mainly there is following advantage with filter:
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, transfusion needle is that setting is connect with lower case
, 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 mistake
Filter membrane；Under the use occasion that some need secondary filter, secondary filter film is installed, to meet different filtration needs, is dropped
Low use 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, when secondary
When the filter opening blocking of filter membrane, 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 utility model embodiment 1.
Fig. 2 is the structural decomposition diagram of the filter provided in the utility model embodiment 1.
Fig. 3 is the cross section structure schematic diagram of the filter provided in the utility model embodiment 2.
Fig. 4 is the cross section structure schematic diagram of the filter provided in the utility model embodiment 3.
Fig. 5 is the structural decomposition diagram of the filter provided in the utility model embodiment 3.
Fig. 6 is the cross section structure schematic diagram of the filter provided in the utility model embodiment 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 utility model is further illustrated below by specific embodiment.But it is practical new that these examples are merely to illustrate this
Type rather than limitation the scope of the utility model.
Embodiment 1
As illustrated in fig. 1 and 2, a kind of 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 fastened between the upper housing 3 and lower case 7；The lower casing
The periphery of body 7 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 detaining
Conjunction 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 are detachable setting；The top of the upper housing 3 is equipped with several gas vents 2；Described is primary
Filter membrane 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 essence
Close 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 lower filter chamber 6
The inside necking of shell 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 in institute
State 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 on the 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, including the upper conduit 1 and downcomer 8 for being connect with perfusion tube,
The 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 be equipped with flexible fastening ring 5-1, the flexible fastening ring 5-1 makes the upper housing 3 and lower case 7 keep closely fastening shape
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 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 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
Downcomer 8, the filter include upper housing 3 and lower case 7, and passing through screw thread 5-2 between the upper housing 3 and lower case 7 can
Dismantling connection；It is equipped with a filter membrane 4 in the upper housing 3, is folded with secondary filter between the upper housing 3 and lower case 7
Film 9, the secondary filter film 9 are detachable setting；The top of the upper housing 3 is equipped with several gas vents 2；Described is primary
Filter membrane 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 essence
Close filter membrane is nanoparticle filter membrane, may filter that particle of the diameter between 5~20 microns in medical fluid.In the upper housing 3
It is boundary with a filter membrane 4, is divided into filter chamber 13 and lower filter chamber 6, the inside necking of shell of the lower filter chamber 6 is formed
Interconnecting piece 12；The lower case 7 is equipped with lower interconnecting piece 11, and the upper interconnecting piece 12 and lower interconnecting piece 11 pass through screw thread 5-2
It is connected.The outer wall of the upper interconnecting piece 12 is equipped with upper screw thread 5-2-1, the inner wall of the lower interconnecting piece 11 be equipped with it is described on
The upper screw thread 5-2-2 that screw thread 5-2-1 matches.The inside of the lower interconnecting piece 11 is equipped with filter membrane mounting platform 10, described secondary
Filter membrane 9 is placed on the filter membrane mounting platform 10, and the top of the secondary filter film 9 is pressed by the upper interconnecting piece 12
Tightly.
Embodiment 4
As shown in fig. 6, a kind of detachable infusion apparatus filter, including for being connect with perfusion tube upper conduit 1 and under
Conduit 8, the filter include upper housing 3 and lower case 7, and it is removable to pass through screw thread 5-2 between the upper housing 3 and lower case 7
Unload connection；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；Described one
Secondary filter membrane 4 is coarse filtration film, may filter that particle of the diameter at 20 microns or more in medical fluid.With primary in the upper housing 3
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 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.Institute
The outer wall for stating 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-
The upper screw thread 5-2-2 that 2-1 matches.
Embodiment of above is merely to illustrate the utility model, and is not limitation of the utility model, related technology neck
The those of ordinary skill in domain, in the case where not departing from the spirit and scope of the utility model, can also make a variety of changes and
Modification, therefore all equivalent technical solutions also belong to the scope of the utility model, the scope of patent protection of the utility model is answered
It is 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 |
|---|---|---|---|
| CN201821255567.3U CN209075711U (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 |
|---|---|---|---|
| CN201821255567.3U CN209075711U (en) | 2018-08-06 | 2018-08-06 | A kind of detachable infusion apparatus filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209075711U true CN209075711U (en) | 2019-07-09 |
Family
ID=67114301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821255567.3U Expired - Fee Related CN209075711U (en) | 2018-08-06 | 2018-08-06 | A kind of detachable infusion apparatus filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209075711U (en) |
-
2018
- 2018-08-06 CN CN201821255567.3U patent/CN209075711U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190709 Termination date: 20200806 |