CN203874225U - Automatic nuclear pore film liquid stopping precise infusion filter - Google Patents
Automatic nuclear pore film liquid stopping precise infusion filter Download PDFInfo
- Publication number
- CN203874225U CN203874225U CN201420287307.XU CN201420287307U CN203874225U CN 203874225 U CN203874225 U CN 203874225U CN 201420287307 U CN201420287307 U CN 201420287307U CN 203874225 U CN203874225 U CN 203874225U
- Authority
- CN
- China
- Prior art keywords
- cover body
- nucleopore membranes
- filter
- liquid
- upper cover
- 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 - Lifetime
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 66
- 238000001802 infusion Methods 0.000 title abstract description 8
- 210000004492 nuclear pore Anatomy 0.000 title abstract 4
- 239000012528 membrane Substances 0.000 claims description 63
- 230000037361 pathway Effects 0.000 claims description 21
- 239000011148 porous material Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 239000003814 drug Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000003978 infusion fluid Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- External Artificial Organs (AREA)
Abstract
An automatic nuclear pore film liquid stopping precise infusion filter is formed by an upper filter cover and a lower filter cover, wherein the upper filter cover and the lower filter cover are connected. The upper filter cover comprises an upper cover body, a liquid inlet integrally formed in the upper end of the upper cover body, a liquid inlet channel arranged on the inner side of the upper cover body, an air window which is integrally formed in the upper cover body and provided with an exhaust hole, and a nuclear pore film arranged in an end opening formed in the upper cover body and connected with the lower filter cover, an upper end opening of the liquid inlet channel is communicated with the liquid inlet, and a lower end opening of the liquid inlet channel is communicated with the internal space of the upper cover body. The lower filter cover comprises a lower cover body and a liquid outlet channel arranged in the lower cover body, the upper end opening of the liquid outlet channel is communicated with the interior of the lower cover body, and a liquid outlet in the lower end of the liquid outlet channel is located outside the lower cover body. The automatic nuclear pore film liquid stopping precise infusion filter can ensure the achievement of the liquid stopping function, part of liquid can be still reserved in an infusion device without manual interference so that air can be prevented from entering the human body after the liquid is infused, and the work of nurses is greatly reduced.
Description
Technical field
This utility model relates to a kind of precision transfusion filter.Particularly relate to a kind of nucleopore membranes automatic liquid-stopping precision transfusion filter.
Background technology
Fluid transport therapy originates from late nineteenth century, has a long history.Simple, convenient owing to having, evident in efficacy, feature efficiently, nineteen thirties has just become one of indispensable important means and method in modern clinic treatment, has extremely important status in modern clinic.
In clinical transfusion practice, no matter be that common filter infusion apparatus excessively or precision liquid medicine are crossed filter infusion apparatus, all existing needs nurse to pay special attention to avoid medicinal liquid to drip the phenomenon that empty Mo Feishi dropper and medicinal liquid drip off to occur, medicinal liquid drips empty Mo Feishi dropper need to carry out secondary exhaust, if filter designs without transom window, need to change whole transfusion device, increase patient and pay and cause that patient is discontented; Medicinal liquid drips off, and occurs that blood backflow causes that patient is nervous.
For alleviating nurse job intensity, there is the automatic liquid-stopping functional filters that adopts traditional buoy to possess the transfusion device of automatic liquid-stopping function and realized by filter membrane with automatic liquid-stopping device.The transfusion device that adopts traditional buoy to possess automatic liquid-stopping function is by buoy, to be subject to the impact of medicinal liquid buoyancy to stop up tube for transfusion to reach automatic liquid-stopping effect, the impact that this function is subject to medicine liquid ingredient and degree of purity is larger, slightly impurity, granule, plastic buoy just cannot coincide with tube for transfusion, can not realize automatic liquid-stopping.What is more important, once adopt traditional buoy to possess its automatic liquid-stopping of transfusion device of automatic liquid-stopping function, the medicinal liquid that buoy is blocked in interior tens of milliliters of transfusion device below cannot continue to input human body, the loss of inevitable medicinal liquid.And adopt filter membrane to realize the filter of automatic liquid-stopping, and its filter membrane is the extremely strong perforated membrane of hydrophilic, material is fibrous membrane.This only liquid filter is realized automatic liquid-stopping function according to the capillary theory of micropore on perforated membrane, has following drawback: 1) adopt fibrous membrane, in infusion solutions, because filter membrane is immersed in medicinal liquid for a long time, have the risk of fibre shedding; 2) perforated membrane pore-size distribution is wide, and hole size heterogeneity depends on aperture strongly because stopping liquid height, thereby has the only risk of liquid failure; 3) filter membrane is perforated membrane, and thickness mostly is micron up to a hundred, thereby medicinal liquid absorption is large, disadvantageous beyond doubt for accurate measurement medication and costly medicine infusion.
Summary of the invention
Technical problem to be solved in the utility model is, provides a kind of transfusion device in the situation that prosthetic disturbs, still can reserve part liquid, thus stop air after liquid is totally lost, to enter the nucleopore membranes automatic liquid-stopping precision transfusion filter of human body.
The technical scheme that this utility model adopts is: a kind of nucleopore membranes automatic liquid-stopping precision transfusion filter, to be formed by interconnective filter cover and filter lower cover, described filter cover includes upper cover body, be integrally formed in the inlet of upper cover body upper end, be arranged on the feed pathway of upper cover body inner side, be integrally formed in the transom window with steam vent on upper cover body, be arranged on the nucleopore membranes on the port that filter lower cover upper cover body and described is connected, the upper port of described feed pathway is communicated with described inlet, the lower port of feed pathway is communicated with upper cover body interior space, described filter lower cover includes lower cover body, is arranged on the intrinsic liquid outlet channel of lower cover, and the upper port of described liquid outlet channel is communicated with described lower cover body interior, and the liquid outlet of liquid outlet channel lower end is positioned at the outside of described lower cover body.
On the port of described upper cover body, be formed with the outwardly outer lug boss of a circle, on the port of described lower cover body, be formed with corresponding with outer lug boss on described upper cover body and can snap onto the inner convex platform in described outer lug boss.
The feed pathway of described filter cover is the medial wall setting along described upper cover body, and the liquid outlet channel of described filter lower cover is the medial wall setting along described lower cover body, and described feed pathway and described liquid outlet channel be arranged in parallel.
The same footpath that the lower port of described feed pathway and described inlet are positioned at described upper cover body makes progress.
The pore diameter range of described nucleopore membranes is 1 μ m～5 μ m, and hole density range is 2 * 10
5～2 * 10
7/ cm
2.
The thickness of described nucleopore membranes is 7 μ m～30 μ m.
The thickness of described nucleopore membranes is 15 μ m.
The pass of described nucleopore membranes is biconial or single taper or cylindricality.
The pass of described nucleopore membranes is single taper.
A kind of nucleopore membranes automatic liquid-stopping precision transfusion filter according to claim 1, is characterized in that, the hydrophilic water contact angle of described nucleopore membranes is less than 30 °.
A kind of nucleopore membranes automatic liquid-stopping precision transfusion filter of the present utility model, has following features:
Design for filtration elements is rational in infrastructure, and an aerofluxus and secondary exhaust is smooth and easy, the risk that do not exist minute bubbles to adhere to is simple to operate; Employing ultra-sonic welded is simple, low cost of manufacture; Nucleopore membranes automatic liquid-stopping, medicinal liquid is totally lost to nucleopore membranes surface, automatic stopping infusion.This utility model is owing to adopting the highly homogeneous feature of nucleopore membranes and nucleopore membranes aperture of hydrophilic excellence, guarantee the only realization of liquid function, make transfusion device in the situation that prosthetic disturbs, still can reserve part liquid, thereby stop air after liquid is totally lost, to enter human body, greatly reduce nurse's work, reduced doctor-patient dispute.Moreover, after automatic liquid-stopping, by pushing gently dropping funnel, can be totally lost remaining medicinal liquid in transfusion device, avoid the loss of medicinal liquid.Nucleopore membranes is that the medicinal liquid experimental results show that adsorbs minimum excellent secondary filter film, and use nucleopore membranes for effective guarantee therapeutic effect, improves nursing quality as liquid medicine filtering membrane, has undoubtedly important clinical meaning.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is upper cover internal structure schematic diagram of the present utility model;
Fig. 3 is the left side view of Fig. 2;
Fig. 4 is lower cover internal structure schematic diagram of the present utility model;
Fig. 5 is the left side view of Fig. 4.
1: filter cover 2: filter lower cover
11: upper cover body 12: inlet
13: transom window 14: steam vent
15: feed pathway 16: nucleopore membranes
17: lower port 18: outer lug boss
21: lower cover body 22: liquid outlet channel
23: liquid outlet 24: inner convex platform
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, a kind of nucleopore membranes automatic liquid-stopping precision transfusion filter of the present utility model is described in detail.
As shown in Figure 1, a kind of nucleopore membranes automatic liquid-stopping precision transfusion filter of the present utility model, is to consist of interconnective filter cover 1 and filter lower cover 2.
As Fig. 2, shown in Fig. 3, described filter cover 1 includes the upper cover body 11 of circular configuration, be integrally formed in the inlet 12 of upper cover body 11 upper ends, be arranged on the feed pathway 15 of upper cover body 11 inner sides, be integrally formed in the transom window 13 with steam vent 14 on upper cover body 11, be arranged on the nucleopore membranes 16 for the liquid flowing out from upper cover body 11 is filtered on the port that filter lower cover 2 upper cover body 11 and described is connected, the upper port of described feed pathway 15 is communicated with described inlet 12, the lower port 17 of feed pathway 15 is communicated with upper cover body 11 inner spaces, the same footpath that the lower port 17 of described feed pathway 15 and described inlet 12 are positioned at described upper cover body 11 makes progress.During use, medicinal liquid enters after feed pathway 15 arrives these filter bottom and enters filter through tube for transfusion and inlet 12, it is the inner space of upper cover body 11, the internal diameter of feed pathway 15 is less, make medicinal liquid liquid level in filter rising to transom window 13 and through steam vent 14 evacuation of air, the beneficial effect of design is to filter the starting stage like this, gas with medicinal liquid liquid level rising to upper end transom window 13, and from the whole discharge filters of steam vent 14, when transfusion operation, do not need to be inverted filter, avoiding medicinal liquid directly to enter filter produces a large amount of minute bubbles and is attached to filter membrane surface and is difficult to discharge strainer.Have the upper cover body 11 of certain width as the excellent support of nucleopore membranes 16, convenience for ultrasonic welding operation, and because contact surface is large, can effectively avoid filter sealing-in not exclusively or welding breaking causes the filter phenomenon of leakage simultaneously.
As shown in Figure 4, Figure 5, described filter lower cover 2 includes the lower cover body 21 of circular configuration, be arranged on the liquid outlet channel 22 in lower cover body 21, the upper port of described liquid outlet channel 22 and described lower cover body 21 internal communication, the liquid outlet 23 of liquid outlet channel 22 lower ends is positioned at the outside of described lower cover body 21.
As shown in Figure 1, on the port of described upper cover body 11, be formed with the outwardly outer lug boss of a circle 18, on the port of described lower cover body 21, be formed with corresponding with outer lug boss 18 on described upper cover body 11 and can snap onto the inner convex platform 24 in described outer lug boss 18.The feed pathway 15 of described filter cover 1 is the medial wall setting along described upper cover body 11, the liquid outlet channel 22 of described filter lower cover 2 is the medial wall settings along described lower cover body 21, and described feed pathway 15 be arranged in parallel with described liquid outlet channel 22.
Nucleopore membranes 16 described in this utility model is automatic liquid-stopping nucleopore membranes, and the pore diameter range of nucleopore membranes 16 is 1 μ m～5 μ m, and hole density range is 2 * 10
5～2 * 10
7/ cm
2, the thickness of described nucleopore membranes 16 is 7 μ m～30 μ m, the preferred thickness of described nucleopore membranes 16 is 15 μ m.The pass of described nucleopore membranes 16 is biconial or single taper or cylindricality, and the preferred pass of described nucleopore membranes 16 is single taper.
The material of described nucleopore membranes 16 is hydrophilic polyester PET or hydrophilic polycarbonate, and hydrophilic contact angle is less than 30 °, and the preferred hydrophilic water contact angle of described nucleopore membranes 16 is less than 5 °.
Claims (10)
1. a nucleopore membranes automatic liquid-stopping precision transfusion filter, to be formed by interconnective filter cover (1) and filter lower cover (2), it is characterized in that, described filter cover (1) includes upper cover body (11), be integrally formed in the inlet (12) of upper cover body (11) upper end, be arranged on the feed pathway (15) of upper cover body (11) inner side, be integrally formed in the transom window with steam vent (14) (13) on upper cover body (11), be arranged on the nucleopore membranes (16) on the port that upper cover body filter lower covers (11) and described (2) are connected, the upper port of described feed pathway (15) is communicated with described inlet (12), the lower port (17) of feed pathway (15) is communicated with upper cover body (11) inner space, described filter lower cover (2) includes lower cover body (21), be arranged on the liquid outlet channel (22) in lower cover body (21), the upper port of described liquid outlet channel (22) and described lower cover body (21) internal communication, the liquid outlet (23) of liquid outlet channel (22) lower end is positioned at the outside of described lower cover body (21).
2. a kind of nucleopore membranes automatic liquid-stopping precision transfusion filter according to claim 1, it is characterized in that, on the port of described upper cover body (11), be formed with the outwardly outer lug boss of a circle (18), on the port of described lower cover body (21), be formed with corresponding with outer lug boss (18) on described upper cover body (11) and can snap onto the inner convex platform (24) in described outer lug boss (18).
3. a kind of nucleopore membranes automatic liquid-stopping precision transfusion filter according to claim 1, it is characterized in that, the feed pathway (15) of described filter cover (1) is the medial wall setting along described upper cover body (11), the liquid outlet channel (22) of described filter lower cover (2) is the medial wall setting along described lower cover body (21), and described feed pathway (15) be arranged in parallel with described liquid outlet channel (22).
4. according to a kind of nucleopore membranes automatic liquid-stopping precision transfusion filter described in claim 1 or 3, it is characterized in that, the same footpath that the lower port (17) of described feed pathway (15) and described inlet (12) are positioned at described upper cover body (11) makes progress.
5. a kind of nucleopore membranes automatic liquid-stopping precision transfusion filter according to claim 1, is characterized in that, the pore diameter range of described nucleopore membranes (16) is 1 μ m～5 μ m, and hole density range is 2 * 10
5～2 * 10
7/ cm
2.
6. a kind of nucleopore membranes automatic liquid-stopping precision transfusion filter according to claim 1, is characterized in that, the thickness of described nucleopore membranes (16) is 7 μ m～30 μ m.
7. a kind of nucleopore membranes automatic liquid-stopping precision transfusion filter according to claim 1, is characterized in that, the thickness of described nucleopore membranes (16) is 15 μ m.
8. a kind of nucleopore membranes automatic liquid-stopping precision transfusion filter according to claim 1, is characterized in that, the pass of described nucleopore membranes (16) is biconial or single taper or cylindricality.
9. a kind of nucleopore membranes automatic liquid-stopping precision transfusion filter according to claim 1, is characterized in that, the pass of described nucleopore membranes (16) is single taper.
10. a kind of nucleopore membranes automatic liquid-stopping precision transfusion filter according to claim 1, is characterized in that, the hydrophilic water contact angle of described nucleopore membranes (16) is less than 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420287307.XU CN203874225U (en) | 2014-05-30 | 2014-05-30 | Automatic nuclear pore film liquid stopping precise infusion filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420287307.XU CN203874225U (en) | 2014-05-30 | 2014-05-30 | Automatic nuclear pore film liquid stopping precise infusion filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203874225U true CN203874225U (en) | 2014-10-15 |
Family
ID=51674779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420287307.XU Expired - Lifetime CN203874225U (en) | 2014-05-30 | 2014-05-30 | Automatic nuclear pore film liquid stopping precise infusion filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203874225U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104941462A (en) * | 2015-06-25 | 2015-09-30 | 浙江润强医疗器械股份有限公司 | Composite membrane used for filter and preparation method thereof |
| CN105233374A (en) * | 2015-11-02 | 2016-01-13 | 天津哈娜好兴达医用制品有限公司 | Filter for medical infusion set |
| CN106474595A (en) * | 2015-08-28 | 2017-03-08 | 陈陆陆 | Defecator |
| CN107583132A (en) * | 2017-10-12 | 2018-01-16 | 湖北爱凯尔医疗科技有限公司 | Disposable automatic exhaust, only liquid, precision filter infusion set |
| CN107715231A (en) * | 2017-11-13 | 2018-02-23 | 浙江衢州荣博医疗器材有限公司 | Micro pump extension tube |
| CN108785793A (en) * | 2018-07-26 | 2018-11-13 | 江西洪达医疗器械集团有限公司 | Injection member and infusion apparatus containing the injection member |
| CN111973844A (en) * | 2019-05-24 | 2020-11-24 | 山东振富医疗器械有限公司 | Medical double-reflux filter for infusion apparatus |
-
2014
- 2014-05-30 CN CN201420287307.XU patent/CN203874225U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104941462A (en) * | 2015-06-25 | 2015-09-30 | 浙江润强医疗器械股份有限公司 | Composite membrane used for filter and preparation method thereof |
| CN106474595A (en) * | 2015-08-28 | 2017-03-08 | 陈陆陆 | Defecator |
| CN106474595B (en) * | 2015-08-28 | 2024-02-09 | 陈陆陆 | Filtering device |
| CN105233374A (en) * | 2015-11-02 | 2016-01-13 | 天津哈娜好兴达医用制品有限公司 | Filter for medical infusion set |
| CN107583132A (en) * | 2017-10-12 | 2018-01-16 | 湖北爱凯尔医疗科技有限公司 | Disposable automatic exhaust, only liquid, precision filter infusion set |
| CN107715231A (en) * | 2017-11-13 | 2018-02-23 | 浙江衢州荣博医疗器材有限公司 | Micro pump extension tube |
| CN108785793A (en) * | 2018-07-26 | 2018-11-13 | 江西洪达医疗器械集团有限公司 | Injection member and infusion apparatus containing the injection member |
| CN108785793B (en) * | 2018-07-26 | 2023-08-29 | 江西洪达医疗器械集团有限公司 | Injection member and infusion apparatus comprising same |
| CN111973844A (en) * | 2019-05-24 | 2020-11-24 | 山东振富医疗器械有限公司 | Medical double-reflux filter for infusion apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141015 |