CN201235117Y - Medical precision filter - Google Patents
Medical precision filter Download PDFInfo
- Publication number
- CN201235117Y CN201235117Y CNU2008201213039U CN200820121303U CN201235117Y CN 201235117 Y CN201235117 Y CN 201235117Y CN U2008201213039 U CNU2008201213039 U CN U2008201213039U CN 200820121303 U CN200820121303 U CN 200820121303U CN 201235117 Y CN201235117 Y CN 201235117Y
- Authority
- CN
- China
- Prior art keywords
- loam cake
- lower cover
- filter
- cavity
- membrane
- 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
Images
Abstract
The utility model provides a medical fine filter, which belongs to the technical field of medical equipment, and solves the problems of low production efficiency, unsmooth exhaustion, medicine solution wasting and the like of an existing medical fine filter. The medical fine filter comprises an upper cover and a lower cover which can form a sealed cavity after buckling with the upper cover, a filter membrane which divides the cavity into a liquid inlet cavity and a liquid outlet cavity is arranged between the upper cover and the lower cover, wherein the liquid inlet cavity is formed by the upper cover and the filter membrane, and a liquid inlet pipe which is communicated with the liquid inlet cavity is arranged on the filter, and the liquid outlet cavity is formed by the lower cover and the filter membrane, and a liquid outlet pipe which is communicated with the liquid outlet cavity is arranged on the filter, the inner wall of the upper cover is an oblique plane whose edge is projected towards the central portion, an air exit hole is arranged on the central portion of the upper cover, and an exhausting membrane for preventing medicine solution from leaking is arranged on the air exit hole. The utility model has the advantages of excellent exhausting effect, safe infusion, high medicine solution utilization ratio and the like.
Description
Technical field
This utility model belongs to technical field of medical instruments, relates to a kind of filter, particularly a kind of medical accurate filter.
Background technology
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.Because overproof microgranule in the infusion process, can cause direct harm to the cell of terminal artery and keeping, medically be referred to as transfusion and pollute, its caused recent influence is as erythema, pruritus, swelling etc.; Remote effect as: just can occur behind the allergic symptom several hrs, can obscure with other disease again, also have diseases such as the apoplexy that just can occur behind several years, decades, thromboembolism.
In order to address this problem [the patent No.: 200720019381.3; Granted publication number: 201064590Y] Chinese patent application the patent documentation that a kind of name is called " precision liquid medicine filter " is disclosed, it comprises: upper casing, lower casing, steam vent is arranged on the upper casing, inlet, liquid outlet are arranged on the lower casing; Be provided with liquid medicine filtering membrane between upper casing and the lower casing, the inner chamber that liquid medicine filtering membrane forms upper and lower shell is divided into admission chamber and goes out sap cavity, admission chamber and go out sap cavity and be connected with inlet, liquid outlet respectively, on the lower casing contact surface that contacts with liquid medicine filtering membrane, be provided with the short circle muscle that supports liquid medicine filtering membrane, short circle muscle is a trapezoidal protrusion.
The defective of this precision liquid medicine filter is that liquid outlet and inlet are installed on the lower casing, bring greater inconvenience to assembling, have reduced production efficiency; Secondly, the last lower house of precision liquid medicine filter is planar structure, and gas is not easy to be pooled to intermediary steam vent and therefrom gets rid of, if serious aerofluxus is not smooth, even the safety of influence transfusion; And the volume of such filter that planar structure constitutes is bigger, and medicinal liquid is stayed in the filter too much during transfusion, for very expensive medicinal liquid, can cause unnecessary waste especially, in quantitative transfusion, even causes the deficiency of amount of infusion.
Summary of the invention
The purpose of this utility model is to have above-mentioned problem at existing medical accurate filter, and a kind of good exhaust effect, transfusion safety, medical accurate filter that the medicinal liquid utilization rate is high are provided.
The purpose of this utility model can realize by following technical proposal: a kind of 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 above-mentioned cavity is separated into admission chamber and the filter membrane that goes out sap cavity, described admission chamber is made of loam cake and filter membrane and is provided with the feed tube that communicates with admission chamber on this filter, describedly go out sap cavity and constitute by lower cover and filter membrane and on this filter, be provided with and go out the drain pipe that sap cavity communicates, it is characterized in that, the medial wall of described loam cake is the inclined-plane that the edge protrudes to the middle part, middle part at 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.
This medical accurate filter is connected in the transfusion device, medicinal liquid enters into admission chamber from feed tube, flow to out in the sap cavity through after the filtration of filter membrane, medicinal liquid in admission chamber is mixed with gas, and gas can float on the medial wall of loam cake, because the medial wall of loam cake is the inclined-plane that the edge protrudes to the middle part, gas can be raised to the middle part of loam cake along the inclined-plane, be provided with steam vent at the middle part of loam cake and appear by gas, flow out in order to prevent medicinal liquid, the place is provided with exhaust membrane at steam vent.
In above-mentioned medical accurate filter, described inclined-plane is the conical surface.
In above-mentioned medical accurate filter, described inclined-plane is an arc surface.
In above-mentioned medical accurate 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.Loam cake can be picked up easily by feed tube, lower cover can be picked up easily by drain pipe.
In above-mentioned medical accurate filter, the direction of described drain pipe and feed tube is on the same rectilinear direction.
In above-mentioned medical accurate filter, the inner port of described drain pipe is relative with the inner port of feed tube.Medicinal liquid and bubble are flowed out fast and can make the filter membrane that flows through that medicinal liquid unexpectedly may be many by this structure, thereby improve filtering efficient.
In above-mentioned medical accurate filter, the medial surface of described lower cover is the plane, and filter membrane is withstood on salient point on the loam cake medial surface being provided with several on the medial surface of lower cover.By salient point filter membrane is fixed between loam cake and the lower cover, salient point is set plays the effect of supporting filter membrane, the shared area of salient point is smaller simultaneously, so the medicinal liquid circulation is smooth and easy.
In above-mentioned medical accurate filter, it is evenly distributed that described salient point is pressed circumferencial direction.
In above-mentioned medical accurate filter, described loam cake is connected by supersonic thermal setting mutually with lower cover.
Compared with prior art, this medical accurate filter has following advantage:
1, the medial wall of the loam cake of the medical accurate filter of basis is the inclined-plane, and bubble is understood the middle part that float to loam cake along the side after on the inclined-plane, gas is discharged, and makes the bubble in this precision liquid medicine filter discharge good exhaust effect fast.
2, the medial wall of the loam cake of this medical accurate filter is the inclined-plane, can reduce the volume of cavity, makes a spot of medicinal liquid rest on this precision liquid medicine filter, has improved the utilization rate of medicinal liquid.
3, the feed tube of this medical accurate filter is arranged on loam cake and is connected as a single entity with loam cake, and drain pipe is arranged on lower cover and is connected as a single entity with lower cover, can pick up loam cake and lower cover by drain pipe and feed tube when assembling, assembles more convenient.
Description of drawings
Fig. 1 is the stereochemical structure installation diagram of this medical accurate filter.
Fig. 2 is the structure cutaway view of this medical accurate filter.
Among the figure, 1, loam cake; 11, feed tube; 2, lower cover; 21, drain pipe; 3, filter membrane; 4, steam vent; 41, exhaust membrane; 5, salient point.
The specific embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but this utility model be not limited to these embodiment.
As depicted in figs. 1 and 2, this medical accurate filter comprises formations such as loam cake 1, lower cover 2, filter membrane 3, is used for filtering liquid medicine.
Specifically, loam cake 1 and lower cover 2 are plate-like, also can be other shapes such as rectangle, circular arc.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 filter membrane 3.The medial wall of loam cake 1 is the inclined-plane that the edge protrudes to the middle part, and the inclined-plane can be that the conical surface also can be arc surface.Be provided with steam vent 4 at loam cake 1 middle part, be provided with steam vent 4 places and overlap, be provided with the exhaust membrane 41 that prevents that medicinal liquid from spilling at steam vent 4 places with the highest point on inclined-plane.Exhaust membrane 41 places are set have a groove, exhaust membrane 41 sticks on the lowest part of groove, and exhaust membrane 41 can be pasted one also can overlap two of stickups.Filter membrane 3 is separated into admission chamber and go out sap cavity with cavity, and admission chamber is the cavity between filter membrane 3 and the loam cake 1, is provided with the feed tube 11 that communicates with admission chamber and is connected as a single entity with loam cake 1 at loam cake 1 sidewall; Go out sap cavity and be the cavity between lower cover 2 and the filter membrane 3, be provided with and go out drain pipe 21 that sap cavity communicates and be connected as a single entity with lower cover 2 at lower cover 2 sidewalls; The inner port of drain pipe 21 is relative with the inner port of feed tube 11.The medial surface of lower cover 2 is the plane, and filter membrane 3 is withstood on salient point 5 on loam cake 1 medial surface being provided with several on the medial surface of lower cover 2, and it is evenly distributed that salient point 5 is pressed circumferencial direction.When assembling, can pick up lower cover 2 by drain pipe 21, circular filter membrane 3 is placed at 5 places at lower cover 2 flat bumps, picking up loam cake 1 by feed tube 11 again covers on lower cover 2, the direction of drain pipe 21 and feed tube 11 is on the same rectilinear direction, and then loam cake 1 and lower cover 2 are fixed together by supersonic thermal setting.
This medical accurate filter is connected in the transfusion device, and medicinal liquid enters into admission chamber from feed tube 11, because medicinal liquid produces bubble in tube for transfusion, thereby bubble can enter in the admission chamber along with medicinal liquid, and bubble can float on the medial wall of loam cake 1.Because the medial wall of loam cake 1 is the inclined-plane that the edge protrudes to the middle part, gas can be raised to the middle part of loam cake 1 along the inclined-plane, is provided with steam vent 4 at the middle part of loam cake 1 and allows gas appear, and flows out in order to prevent medicinal liquid, and 4 places are provided with exhaust membrane 41 at steam vent.Exhaust membrane 41 materials that adopt are PVDF, nylon etc. at present.Medicinal liquid flows to out in the sap cavity through after the filtration of filter membrane 3, flows out liquid outlet again and is input among the patient.
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 spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used loam cake 1 morely; Feed tube 11; Lower cover 2; Drain pipe 21; Filter membrane 3; Steam vent 4; Exhaust membrane 41; Salient point 5 terms such as grade, but do not get rid of the probability of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with this utility model spirit.
Claims (9)
1, a kind of medical accurate 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 and the filter membrane (3) that goes out sap cavity, described admission chamber is made of loam cake (1) and filter membrane (3) and is provided with the feed tube (11) that communicates with admission chamber on this filter, describedly go out sap cavity and constitute by lower cover (2) and filter membrane (3) and on this filter, be provided with and go out the drain pipe (21) that sap cavity communicates, it is characterized in that, the medial wall of described loam cake (1) is the inclined-plane that the edge protrudes to the middle part, be provided with steam vent (4) at the middle part of loam cake (1), locate to be provided with the exhaust membrane (41) that prevents medicinal liquid and spill at steam vent (4).
2, medical accurate filter according to claim 1 is characterized in that, described inclined-plane is the conical surface.
3, medical accurate filter according to claim 1 is characterized in that, described inclined-plane is an arc surface.
According to claim 1 or 2 or 3 described medical accurate filters, it is characterized in that 4, described feed tube (11) is arranged on loam cake (1) and is connected as a single entity with loam cake (1), described drain pipe (21) is arranged on lower cover (2) and is connected as a single entity with lower cover (2).
5, medical accurate filter according to claim 4 is characterized in that, the direction of described drain pipe (21) and feed tube (11) is on the same rectilinear direction.
6, medical accurate filter according to claim 5 is characterized in that, the inner port of described drain pipe (21) is relative with the inner port of feed tube (11).
7, medical accurate filter according to claim 4 is characterized in that, the medial surface of described lower cover (2) is the plane, and filter membrane (3) is withstood on salient point (5) on loam cake (1) medial surface being provided with several on the medial surface of lower cover (2).
8, medical accurate filter according to claim 7 is characterized in that, it is evenly distributed that described salient point (5) is pressed circumferencial direction.
9, medical accurate filter according to claim 4 is characterized in that, described loam cake (1) is connected by supersonic thermal setting mutually with lower cover (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201213039U CN201235117Y (en) | 2008-07-11 | 2008-07-11 | Medical precision filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201213039U CN201235117Y (en) | 2008-07-11 | 2008-07-11 | Medical precision filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201235117Y true CN201235117Y (en) | 2009-05-13 |
Family
ID=40647851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201213039U Expired - Lifetime CN201235117Y (en) | 2008-07-11 | 2008-07-11 | Medical precision filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201235117Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103566435A (en) * | 2013-11-14 | 2014-02-12 | 台州迈得医疗工业设备股份有限公司 | Process of assembling medical filter |
| CN112277333A (en) * | 2019-07-25 | 2021-01-29 | 江苏正迈过滤技术有限公司 | Medical filter and production method thereof |
| CN113350619A (en) * | 2021-07-08 | 2021-09-07 | 上海振浦医疗设备有限公司 | Built-in membrane filtering injector |
-
2008
- 2008-07-11 CN CNU2008201213039U patent/CN201235117Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103566435A (en) * | 2013-11-14 | 2014-02-12 | 台州迈得医疗工业设备股份有限公司 | Process of assembling medical filter |
| CN112277333A (en) * | 2019-07-25 | 2021-01-29 | 江苏正迈过滤技术有限公司 | Medical filter and production method thereof |
| CN113350619A (en) * | 2021-07-08 | 2021-09-07 | 上海振浦医疗设备有限公司 | Built-in membrane filtering injector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106621510B (en) | Soft material polymer precision filter for transfusion and manufacturing method thereof | |
| CN202198923U (en) | Medical filter | |
| CN201235117Y (en) | Medical precision filter | |
| CN201267678Y (en) | Disposal one-way valve for infusion | |
| CN201064590Y (en) | Precision medicine liquid filter | |
| CN208065510U (en) | A kind of medical effusion drainage device of anticlogging cardiology department | |
| CN108478904B (en) | Exhaust part and guide pipe and injector comprising same | |
| CN201832231U (en) | Improved medical precise filter | |
| CN204601286U (en) | A kind of precision liquid medicine filter | |
| CN201399117Y (en) | Double-sided filtering precise-filtering transfusion device | |
| CN215504770U (en) | Bronchoalveolar lavage fluid collection device | |
| CN216136054U (en) | Be applied to drainage cell body and drainage device of lumbar vertebrae intervertebral scope art | |
| CN201807023U (en) | Murphy tube provided with automatic exhaust device | |
| CN204864356U (en) | Accurate liquid liquid medicine filter that ends of disposable | |
| CN212940785U (en) | Drainage device for tumor dropsy | |
| CN208436148U (en) | A kind of blood filter device | |
| CN208943070U (en) | A kind of Needleless dosing device | |
| CN202637637U (en) | Macromolecule ultra-filter for transfusion | |
| CN204684330U (en) | Aerofluxus stops liquid transfusion device | |
| CN219878829U (en) | Double-deck filterable accurate liquid medicine filter | |
| CN203525071U (en) | Precision filtering infusion device capable of automatically exhausting air and stopping liquid | |
| CN219398536U (en) | Precise liquid medicine filter for medical infusion apparatus | |
| CN203090117U (en) | Intelligent type automatic exhausting automatic liquid stopping blood return deferring filter and infusion apparatus | |
| CN211724702U (en) | Enrichment facility of pharmaceutical production | |
| CN202761841U (en) | Safety type lightproof single-insertion single-bag bag type infusion set |
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, Yuhuan County Province town of Pearl River Guan Huang Hom mechanical and Electrical Industrial Park Patentee after: Zhejiang Xinna Medical Equipment Technology Co., Ltd. Address before: 317600, Zhejiang, Yuhuan County Province town of Pearl River Guan Huang Hom mechanical and Electrical Industrial Park Patentee before: Yuhuan County Xinyi Polymer Filter Factory |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090513 |
|
| CX01 | Expiry of patent term |