CN202198923U - Medical filter - Google Patents
Medical filter Download PDFInfo
- Publication number
- CN202198923U CN202198923U CN2011202357301U CN201120235730U CN202198923U CN 202198923 U CN202198923 U CN 202198923U CN 2011202357301 U CN2011202357301 U CN 2011202357301U CN 201120235730 U CN201120235730 U CN 201120235730U CN 202198923 U CN202198923 U CN 202198923U
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- loam cake
- lower cover
- filter
- dividing plate
- feed tube
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Abstract
The utility model provides a medical filter, belonging to the technical field of medical devices. The utility model aims at solving the problem that the existing medical filter has bad exhaust and filtering effects and shorter service life. The medical filter comprises an upper cover and a lower cover, wherein the lower cover can form a sealing cavity after being buckled with the upper cover; a filtering film capable of dividing the cavity into a liquid inlet cavity and a liquid outlet cavity is arranged between the upper cover and the lower cover; the liquid inlet cavity is composed of the upper cover and the filtering film, and a liquid inlet pipe communicated with the liquid inlet cavity is arranged on the filter; the liquid outlet cavity is composed of the lower cover and the filtering film, and a liquid outlet pipe communicated with the liquid outlet cavity is arranged on the filter; and a plurality of clapboards are arranged in the liquid inlet cavity and divide the liquid inlet cavity into a plurality of flow distribution cavities communicated with the liquid inlet pipe. The medical filter has the advantages of better exhaust effect and more convenience in assembly.
Description
Technical field
This utility model belongs to technical field of medical instruments, relates to a kind of medical filter.
Background technology
We know, venous transfusion is clinical rescue critical patient, the most effective mode of curing all kinds of slight illness always, and it is directly medicine to be injected in the blood, so performance drug effect that can prestissimo.Yet the overproof microgranule that produces in the infusion process is the difficult problem of puzzlement medical personnel, transfusion device Producer always.
During the clinical vein transfusion,, cause adverse reactions of patients, on transfusion device, be provided with filter for transfusion for preventing the harm of antibacterial, particulate matter etc.Existing filter for transfusion, a kind of is on upper shell, to be provided with feed tube, lower house is provided with drain pipe, is provided with filter membrane between upper shell and the lower house, forms feed liquor cavity and fluid cavity, relies on the pressure reduction perpendicular flow of feed liquor cavity and fluid cavity liquid.Another kind is between left shell and right shell body, to be provided with filter membrane, forms feed liquor cavity and fluid cavity, and the housing top is provided with feed tube, and the housing below is provided with drain pipe, relies on the pressure reduction perpendicular flow of feed liquor cavity and fluid cavity liquid.
A kind of medical accurate filter [application number: 200820121303.9 that openly proposes like the Chinese patent documents and materials; Granted publication number: CN201235117Y]; This medical accurate filter; Comprise loam cake and be interlocked with loam cake after can form the lower cover of sealed cavity, between loam cake and lower cover, be provided with cavity be separated into admission chamber and the filter membrane that goes out sap cavity, admission chamber is made up of loam cake and filter membrane and on this filter, is provided with the feed tube that communicates with admission chamber; Going out sap cavity is made up of lower cover and filter membrane and on this filter, is provided with and goes out the drain pipe that sap cavity communicates; The medial wall of loam cake is the inclined-plane of edge to the middle part protrusion, is provided with steam vent at the middle part of loam cake, is provided with the exhaust membrane that prevents that medicinal liquid from spilling at the steam vent place.Owing to be prone to deposition antibacterial and particulate matter etc. on the filter membrane of this filter, stop up the filtering holes of filter membrane, aerofluxus and poor filtration effect, and make that the service life of this filter is short.
Summary of the invention
The purpose of this utility model is to have the problems referred to above to existing technology, has proposed a kind of exhaust gas filter medical filter effective, simple in structure.
The purpose of this utility model can realize through following technical proposal: a kind of medical filter; Comprise loam cake and be interlocked with loam cake after can form the lower cover of sealed cavity; Between loam cake and lower cover, be provided with above-mentioned cavity is separated into admission chamber and the filter membrane that goes out sap cavity; Described admission chamber is made up of loam cake and filter membrane and on this filter, is provided with the feed tube that communicates with admission chamber, describedly goes out sap cavity and is made up of lower cover and filter membrane and on this filter, is provided with and goes out the drain pipe that sap cavity communicates, and it is characterized in that; Be provided with some dividing plates in the described admission chamber, dividing plate is divided into some shunting chambeies that communicate with feed tube with above-mentioned admission chamber.
This medical filter links to each other with transfusion device, and the medicinal liquid in the transfusion device is carried out filtration.Because be provided with the shunting chamber that communicates with feed tube in the admission chamber, during work, medicinal liquid enters into admission chamber by feed tube medicinal liquid is divided into a plurality of parts, make separating that air in the medicinal liquid is more prone to from medicinal liquid; The medicinal liquid that the is divided into a plurality of parts filter membrane of flowing through again filters the materials such as impurity in the medicinal liquid, and impurity is rested on the filter membrane, and filter membrane is also got rid of the air in the medicinal liquid to medicinal liquid again simultaneously.
In above-mentioned medical filter, described dividing plate is positioned at the loam cake inboard, and dividing plate and loam cake are integral structure.Dividing plate and loam cake adopt integral structure, and the parts of this medical filter are simplified, and reduce manufacturing cost.
In above-mentioned medical filter, described dividing plate is that benchmark is the circumferencial direction arrangement with the loam cake center.When medicinal liquid entered into admission chamber from feed tube, because dividing plate is relative with the loam cake center, so medicinal liquid almost evenly entered on the corresponding shunting chamber, has good assorted the acting on of aerofluxus filter.
In above-mentioned medical filter, the middle part of said loam cake is provided with steam vent, is provided with the exhaust membrane that prevents that medicinal liquid from spilling at the steam vent place.When medicinal liquid carried out filtering exhaust in admission chamber after, the gas that is filtered out was discharged through steam vent, and steam vent goes out to be provided with to prevent the exhaust membrane that medicinal liquid spills, and it is safer that this medical filter is used.
In above-mentioned medical filter, described feed tube is arranged on loam cake and is connected as a single entity with loam cake, and described drain pipe is arranged on lower cover and is connected as a single entity with lower cover.Feed tube and loam cake are connected as a single entity, liquid pipe and lower cover are connected as a single entity makes the advantage that this medical filter manufacturing cost is lower.
In above-mentioned medical filter, the direction of described drain pipe and feed tube is on the same rectilinear direction, and the inner port of the inner port of drain pipe and feed tube is relative.When medicinal liquid when feed tube enters into admission chamber, but filtered liquid medicine flows directly to the inner port of drain pipe and is flowed out by drain pipe.
In above-mentioned medical filter, described loam cake is connected through supersonic thermal setting with lower cover mutually.The advantage of adopt supersonic thermal setting that loam cake and lower cover are tightly connected to have good sealing effect, speed of production is fast.
In above-mentioned medical filter; Described feed tube is positioned at the loam cake sidepiece, and described drain pipe is positioned at the lower cover sidepiece, and above-mentioned dividing plate is arranged at the loam cake inboard ringwise; Some dividing plates are the setting of benchmark concentric with the loam cake center, and the shunting chamber between above-mentioned adjacent two dividing plates all communicates with feed tube.But this medical filter is horizontal positioned in use, and when medicinal liquid flowed into admission chamber from feed tube, most of medicinal liquid entered into the shunting intracavity respectively and carries out aerofluxus and filtration.
In above-mentioned medical filter, have the connecting portion that is positioned at admission chamber on the described feed tube, the shunting chamber between above-mentioned adjacent two dividing plates is connected with this connecting portion, and the cavity that inboard partition forms communicates with the connecting portion port.This medical filter is horizontal positioned in use, and when medicinal liquid flowed into admission chamber from feed tube, the port that the part medicinal liquid is connected with the shunting chamber from connecting portion entered into the shunting intracavity and carries out aerofluxus and filtration, and filtered liquid medicine flows in the transfusion device through going out sap cavity accordingly.
In above-mentioned medical filter, described lower cover inboard is provided with dividing plate, and dividing plate and lower cover are integral structure, and described filter membrane is between loam cake dividing plate and lower cover dividing plate.The lower cover dividing plate will support filter membrane and prevent that pressure in the admission chamber from crossing ambassador's filter membrane and breaking.
Compared with prior art, this medical filter has the following advantages:
1, the medical filter medicinal liquid that adopts dividing plate will enter into admission chamber is cut apart several portions and is made the air in the medicinal liquid discharge more easily; And the medicinal liquid after separating is through in the process of filter membrane; To the medicinal liquid intake and exhaust, make this medical filter have exhaust effect preferably once more;
2, the dividing plate of this medical filter, loam cake and feed tube are connected as a single entity, and lower cover and drain pipe are connected as a single entity, and make the assembling of this medical filter convenient;
3, in the cavity of this medical filter dividing plate is set, the enough rapid and uniform of messenger drug fluid power are distributed to filter membrane surface, get rid of the bubble that adsorbs on the filter membrane.
Description of drawings
Fig. 1 is the cross-sectional schematic of this medical filter embodiment one.
Fig. 2 is the A-A cross-sectional schematic of this medical filter embodiment one.
Fig. 3 is the partial schematic sectional view of this medical filter embodiment two.
Fig. 4 is the cross-sectional schematic of this medical filter embodiment three.
Among the figure, 1, loam cake; 1a, steam vent; 1b, exhaust membrane; 2, lower cover; 3, admission chamber; 4, feed tube; 5, go out sap cavity; 6, drain pipe; 7, filter membrane; 8, dividing plate; 9, shunting chamber; 10, connecting portion.
The specific embodiment
Below be the specific embodiment of this utility model and combine accompanying drawing, the technical scheme of this utility model is done further to describe, but this utility model is not limited to these embodiment.
Embodiment one
As illustrated in fig. 1 and 2; A kind of medical filter, comprise loam cake 1 and with loam cake 1, loam cake 1 with can form sealed cavity after lower cover 2 is interlocked through supersonic thermal setting mutually; The middle part of loam cake 1 is provided with steam vent 1a, and steam vent 1a place is provided with the exhaust membrane 1b that prevents that medicinal liquid from spilling.Between loam cake 1 and lower cover 2, be provided with cavity is separated into admission chamber 3 and the filter membrane 7 that goes out sap cavity 5.Admission chamber 3 is made up of loam cake 1 and filter membrane 7, and loam cake 1 is provided with the feed tube 4 that communicates with admission chamber 3, and feed tube 4 is connected as a single entity with loam cake 1; Go out sap cavity 5 and be made up of lower cover 2 and filter membrane 7, lower cover 2 is provided with and goes out the drain pipe 6 that sap cavity 5 communicates, and drain pipe 6 is connected as a single entity with lower cover 2.The direction of drain pipe 6 and feed tube 4 is on the same rectilinear direction, and the inner port of the inner port of drain pipe 6 and feed tube 4 is relative.Be provided with the dividing plate 8 that admission chamber 3 is divided into some shunting chambeies 9 that communicate with feed tube 4 in the admission chamber 3, dividing plate 8 is that benchmark is the circumferencial direction arrangement with loam cake 1 center.
This medical filter links to each other with transfusion device, and the medicinal liquid in the transfusion device is carried out filtration.Because be provided with the shunting chamber 9 that communicates with feed tube 4 in the admission chamber 3, during work, medicinal liquid enters into admission chamber 3 by feed tube 4.Because dividing plate 8 is that benchmark is circumferencial direction and arranges admission chamber 3 is divided into some shunting chambeies 9 that communicate with feed tube 4 with loam cake 1 center; When medicinal liquid enters into admission chamber 3 from feed tube 4; Because dividing plate 8 is relative with loam cake 1 center, so medicinal liquid almost evenly enters on the corresponding shunting chamber 9.Medicinal liquid is divided into a plurality of parts by dividing plate 8 and makes separating from medicinal liquid that air in the medicinal liquid is more prone to.The medicinal liquid that the is divided into a plurality of parts filter membrane 7 of flowing through again filters the materials such as impurity in the medicinal liquid, and impurity is rested on the filter membrane 7, and filter membrane 7 is also got rid of the air in the medicinal liquid to medicinal liquid again simultaneously.When medicinal liquid carried out filtering exhaust in admission chamber 3 after, the gas that leaches was discharged through steam vent 1a, and steam vent 1a goes out to be provided with to prevent the exhaust membrane 1b that medicinal liquid spills, and it is safer that this medical filter is used.
In admission chamber 3,, enter into the pipeline of transfusion device when medicinal liquid inflow place sap cavity and through drain pipe 6 through after aerofluxus and the filtration.
Embodiment two
Present embodiment is basic identical with structure and the principle of embodiment one; Different place is: as shown in Figure 3; Feed tube 4 is positioned at loam cake 1 sidepiece, and drain pipe 6 is positioned at lower cover 2 sidepieces, and dividing plate 8 is arranged at loam cake 1 inboard ringwise; Dividing plate 8 is the setting of benchmark concentric with loam cake 1 center, and the shunting chamber 9 between adjacent two dividing plates 8 all communicates with feed tube 4.Have the connecting portion 10 that is positioned at admission chamber 3 on the feed tube 4, the shunting chamber 9 between adjacent two dividing plates 8 is connected with this connecting portion 10, and the cavity that inboard partition 8 forms communicates with connecting portion 10 ports.
Medical filter is horizontal positioned in use, and when medicinal liquid flowed into admission chamber 3 from feed tube 4, the port that medicinal liquid is connected with connecting portion 10 by shunting chamber 9 entered in the shunting chamber 9, and the filter membrane 7 of in shunting chamber 9, flowing through carries out aerofluxus and filtration.Filtered liquid medicine flows to out sap cavity 5 and flow in the transfusion device through drain pipe 6.
Embodiment three
Present embodiment is basic identical with structure and the principle of embodiment one, and different place is: as shown in Figure 4, lower cover 2 inboards are provided with dividing plate 8, and dividing plate 8 is an integral structure with lower cover 2, and filter membrane 7 is between the dividing plate 8 of the dividing plate 8 of loam cake 1 and lower cover 2.The dividing plate 8 of lower cover 2 will support filter membrane 7, prevent that pressure in the admission chamber 2 from crossing ambassador's filter membrane 7 and breaking because of pressure is excessive.
Specific embodiment described herein only is that this utility model spirit is illustrated.This utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of this utility model or surmount the defined scope of appended claims.
Although the probability of using other term do not got rid of in terms such as this paper has used loam cake 1, steam vent 1a, exhaust membrane 1b, lower cover 2, admission chamber 3, feed tube 4, goes out sap cavity 5, drain pipe 6, filter membrane 7, dividing plate 8, shunting chamber 9, connecting portion 10 morely.Using these terms only is in order to describe and explain the essence of this utility model more easily; It all is contrary with this utility model spirit being construed to any additional restriction to them.
Claims (10)
1. medical filter; Comprise loam cake (1) and be interlocked with loam cake (1) after can form the lower cover (2) of sealed cavity; Between loam cake (1) and lower cover (2), be provided with above-mentioned cavity is separated into admission chamber (3) and goes out the filter membrane (7) of sap cavity (5); Described admission chamber (3) is made up of loam cake (1) and filter membrane (7) and on this filter, is provided with the feed tube (4) that communicates with admission chamber (3); Describedly go out sap cavity (5) and constitute by lower cover (2) and filter membrane (7) and on this filter, be provided with and go out the drain pipe (6) that sap cavity (5) communicates; It is characterized in that, be provided with some dividing plates (8) in the described admission chamber (3), dividing plate (8) is divided into some shunting chambeies (9) that communicate with feed tube (4) with above-mentioned admission chamber (3).
2. medical filter according to claim 1 is characterized in that, described dividing plate (8) is positioned at loam cake (1) inboard, and dividing plate (8) is an integral structure with loam cake (1).
3. medical filter according to claim 2 is characterized in that, described dividing plate (8) is that benchmark is the circumferencial direction arrangement with loam cake (1) center.
4. according to claim 1 or 2 or 3 described medical filters, it is characterized in that the middle part of said loam cake (1) is provided with steam vent (1a), locate to be provided with the exhaust membrane (1b) that prevents medicinal liquid and spill at steam vent (1a).
5. according to claim 1 or 2 or 3 described medical filters, it is characterized in that described feed tube (4) is arranged on loam cake (1) and is connected as a single entity with loam cake (1), described drain pipe (6) is arranged on lower cover (2) and is connected as a single entity with lower cover (2).
6. medical filter according to claim 5 is characterized in that, the direction of described drain pipe (6) and feed tube (4) is on the same rectilinear direction, and the inner port of the inner port of drain pipe (6) and feed tube (4) is relative.
7. according to claim 1 or 2 or 3 described medical filters, it is characterized in that described loam cake (1) is connected through supersonic thermal setting with lower cover (2) mutually.
8. according to claim 1 or 2 or 3 described medical filters; It is characterized in that; Described feed tube (4) is positioned at loam cake (1) sidepiece, and described drain pipe (6) is positioned at lower cover (2) sidepiece, and above-mentioned dividing plate (8) is arranged at loam cake (1) inboard ringwise; Some dividing plates (8) are the setting of benchmark concentric with loam cake (1) center, and the shunting chamber (9) between above-mentioned adjacent two dividing plates (8) all communicates with feed tube (4).
9. medical filter according to claim 8; It is characterized in that; Has the connecting portion (10) that is positioned at admission chamber (3) on the described feed tube (4); Shunting chamber (9) between above-mentioned adjacent two dividing plates (8) is connected with this connecting portion (10), and the cavity that inboard partition (8) forms communicates with connecting portion (10) port.
10. according to claim 1 or 2 or 3 described medical filters; It is characterized in that; Described lower cover (2) inboard is provided with dividing plate (8), and dividing plate (8) is an integral structure with lower cover (2), and described filter membrane (7) is positioned between loam cake (1) dividing plate (8) and lower cover (2) dividing plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202357301U CN202198923U (en) | 2011-07-05 | 2011-07-05 | Medical filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202357301U CN202198923U (en) | 2011-07-05 | 2011-07-05 | Medical filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202198923U true CN202198923U (en) | 2012-04-25 |
Family
ID=45963066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202357301U Expired - Lifetime CN202198923U (en) | 2011-07-05 | 2011-07-05 | Medical filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202198923U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103191499A (en) * | 2013-03-27 | 2013-07-10 | 贾宇东 | Positioning installation structure of pointed bubble stopping exhaust film in dripping bottle exhaust vent |
| WO2015154302A1 (en) * | 2014-04-11 | 2015-10-15 | 福建省百仕韦医用高分子股份有限公司 | Medical infusion connector having medicinal solution filtering function |
| WO2015154304A1 (en) * | 2014-04-11 | 2015-10-15 | 福建省百仕韦医用高分子股份有限公司 | Microfiltration medical infusion connector |
| 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 |
| CN104288874B (en) * | 2013-07-19 | 2017-09-26 | 广东龙心医疗器械有限公司 | Disposable automatic exhaust stops liquid transfusion device and method |
| CN107213718A (en) * | 2017-06-14 | 2017-09-29 | 世源科技(嘉兴)医疗电子有限公司 | Veress needle filter |
| CN114713036A (en) * | 2022-06-10 | 2022-07-08 | 北京先通国际医药科技股份有限公司 | Online filter membrane integrity testing device and method and application thereof |
-
2011
- 2011-07-05 CN CN2011202357301U patent/CN202198923U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103191499A (en) * | 2013-03-27 | 2013-07-10 | 贾宇东 | Positioning installation structure of pointed bubble stopping exhaust film in dripping bottle exhaust vent |
| CN104288874B (en) * | 2013-07-19 | 2017-09-26 | 广东龙心医疗器械有限公司 | Disposable automatic exhaust stops liquid transfusion device and method |
| WO2015154302A1 (en) * | 2014-04-11 | 2015-10-15 | 福建省百仕韦医用高分子股份有限公司 | Medical infusion connector having medicinal solution filtering function |
| WO2015154304A1 (en) * | 2014-04-11 | 2015-10-15 | 福建省百仕韦医用高分子股份有限公司 | Microfiltration medical infusion connector |
| CN106413775A (en) * | 2014-04-11 | 2017-02-15 | 福建省百仕韦医用高分子股份有限公司 | Microfiltration medical infusion connector |
| CN106413775B (en) * | 2014-04-11 | 2019-08-20 | 福建省百仕韦医用高分子股份有限公司 | Secondary filter medical infusion connector |
| 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 |
| CN107213718A (en) * | 2017-06-14 | 2017-09-29 | 世源科技(嘉兴)医疗电子有限公司 | Veress needle filter |
| CN114713036A (en) * | 2022-06-10 | 2022-07-08 | 北京先通国际医药科技股份有限公司 | Online filter membrane integrity testing device and method and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG XINNA MEDICAL DEVICE TECHNOLOGY CO., LTD. Free format text: FORMER NAME: YUHUAN XINYI MACROMOLECULE FILTRATION MATERIAL FACTORY |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 317600, Zhejiang Province, Taizhou City, Yuhuan County Province Pearl River town Chengguan Wong Hom Industrial Zone Patentee after: Zhejiang Xinna Medical Equipment Technology Co., Ltd. Address before: 317600, Zhejiang Province, Taizhou City, Yuhuan County Province Pearl River town Chengguan Wong Hom Industrial Zone Patentee before: Yuhuan County Xinyi Polymer Filter Factory |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120425 |