CN201067558Y - Medical filter - Google Patents
Medical filter Download PDFInfo
- Publication number
- CN201067558Y CN201067558Y CNU2007200804978U CN200720080497U CN201067558Y CN 201067558 Y CN201067558 Y CN 201067558Y CN U2007200804978 U CNU2007200804978 U CN U2007200804978U CN 200720080497 U CN200720080497 U CN 200720080497U CN 201067558 Y CN201067558 Y CN 201067558Y
- Authority
- CN
- China
- Prior art keywords
- soft film
- filter cartridge
- sides
- filter
- cartridge construction
- 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
- 239000000463 material Substances 0.000 claims abstract description 75
- 239000004033 plastic Substances 0.000 claims abstract description 36
- 229920003023 plastic Polymers 0.000 claims abstract description 36
- 238000001914 filtration Methods 0.000 claims abstract description 9
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 238000010276 construction Methods 0.000 claims description 39
- 238000007789 sealing Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 239000012943 hotmelt Substances 0.000 claims description 3
- 238000002844 melting Methods 0.000 abstract description 5
- 230000008018 melting Effects 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 4
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 abstract description 3
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 abstract description 3
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 abstract description 3
- 239000002985 plastic film Substances 0.000 abstract 2
- 229920006255 plastic film Polymers 0.000 abstract 2
- 210000004369 blood Anatomy 0.000 description 6
- 239000008280 blood Substances 0.000 description 6
- 210000000265 leukocyte Anatomy 0.000 description 4
- 230000004927 fusion Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002146 exchange transfusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000002615 hemofiltration Methods 0.000 description 1
- 238000000703 high-speed centrifugation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- External Artificial Organs (AREA)
Abstract
The utility model relates to a medical filter. A filter element mechanism consisting of overlapped filter materials is nipped in a holding cavity formed by two layers of soft plastic film materials, the two soft film materials and the filter element mechanism are closed and sealed through a surrounding joint hot melting peripheral, the soft plastic film materials at both sides of the holding cavity are respectively provided with a drainage catheter that is communicated the inside and outside of the holding cavity, and the internal mouths of the drainage catheters are respectively positioned at both sides of the filtering paths of the filter element mechanism. The peripheral surfaces of both sides of the filter element mechanism are connected with a plastic material frame used for hot melting closing together with the soft film materials; the two drainage catheters are respectively positioned between the soft film material and the plastic material frame of the side where the drainage catheters are, and fixedly closed in the hot melting peripheral formed by the soft film material and the plastic material frame, and a liquid path is arranged between the inside mouth end of the drainage catheter and the filter element mechanism. Since the drainage catheters are jointed to the plastic material frame by the soft film material, thus completely avoiding such present vital shortcomings as rosin joint, false joint and over-weld, etc., caused by non-homogeneous filter element material and too small hot closing area, and ensuring the reliable product quality.
Description
Technical field
This utility model relates to a kind of medical medical filter, and is special but be not limited in the transfusion filter tool of using for the filtering leukocyte.
Background technology
Transfusion and blood transfusion is one of commonly used and important medical procedure.With the blood transfusion is example, and the blood transfusion of which kind of mode or purpose at present no matter generally all needs filtering leukocyte wherein, and therefore corresponding filters is absolutely necessary.
Introduced in the Chinese patent literature of notification number CN2245983Y among a kind of disposable efficient blood exchange transfusion set, what relate to is a kind of except that leukocytic efficient hemofilter, is the functional fiber that is filled with forms such as chemical fibre silk, non-woven fabrics, fusion spray cloth in a pvc pipe shell.Have small gap between its implant and tube wall equally, particularly the static pressure of liquid blood can be big with caliber support when hemofiltration, thereby make the part blood can not be through the filtration of implant and slit flow mistake from the side.The document introduces that its leukocyte removal efficiency is the highest can only to reach 99%, does not also reach the leukocyte remainder less than 2.5 * 10
6National pharmaceuticals industry standard YY0329-2002 " disposable use leucocyte-removing filter " requirement.
The Chinese patent literature of notification number CN2902299Y has been introduced a kind of medical filter, has proposed to be welded to each other heat seal by soft film material and stacked filter element, and the structure of liquid in-out body canal is set at its two ends.Though this structure design principle is feasible, but practice is found, because its used plastics mantle and filter element, and conduit and filter element are inhomogeneous materials, and conduit is normally circular, and material for core is generally fibrous materials such as non-woven fabrics, therefore the heat seal performance of removing between unlike material is variant, particularly only limit to usually between conduit and material for core in this narrow range of heat seal periphery with line with and the form that contacts is bonded with each other, the heat seal area is far smaller than the bonding area between plastics mantle and filter element, it is the weakest welding heat seal position, thereby often be prone to rosin joint, dry joint or super weldering, and make product percent of pass extremely low and be difficult to meet industrialization and make requirement, its falseness that is difficult for discovering is welded in follow-up high pressure steam sterilization, or high speed centrifugation etc. is when handling, cracking can occur or break away from, and cause filter in use inner side leakage to take place during filter liquide or leak outside.
The utility model content
At this situation, this utility model will provide a kind of medical filter, to address the above problem.
The basic structure of the improved medical filter of this utility model is equally in the cavity volume that is formed by two layers of plastic soft film material (as medical PVC commonly used etc.), is gripped with the filter cartridge construction of being made up of stacked filtering material.The soft film material in two outsides and the periphery of this filter cartridge construction with the common mutual interfused periphery that forms of hot melting way, are closed in the cavity volume between two plastics soft film material this filter cartridge construction through high-frequency apparatus or ultrasonic equipment etc.Respectively be provided with a catheter that is communicated with inside and outside the cavity volume on the plastics soft film material of the both sides of this cavity volume respectively, the internal orifice of two catheters lays respectively at the two sides that filter cartridge construction filters path.Wherein, engage the plastic material frame that is useful on said soft film material hot melt sealing at the peripheral surface place of said filter cartridge construction both sides, two catheters lay respectively between the soft film material and plastic material frame of its place side, and be encapsulated in admittedly in the heat fused periphery that forms by soft film material and plastic material frame, maintain fluid passage between its internal orifice end and filter cartridge construction.
In said structure, the said plastic material frame that engages at peripheral surface place, filter cartridge construction both sides can adopt different set-up modes.For example, a kind of mode that can be for reference, but be to make said filter cartridge construction earlier by the integral plastics material frame of a kind of package in its periphery both sides, form the filter cartridge construction unit of overall structure form with the periphery both sides heat fused of filter cartridge construction, and then form a mutual interfused periphery jointly through hot melting way by the soft film material of its plastic material frame and both sides.The another kind of mode that can also select, be to be adopted as that to make said this plastic material frame be two absolute construction that are engaged in the filter cartridge construction both sides respectively separately, then by with the soft film material of its both sides the common heat fused periphery that forms filter cartridge construction is closed in the cavity volume.
In above-mentioned filtration device structure, said this catheter that is encapsulated in admittedly between soft film material and the plastic material frame, its internal orifice end position both can also can be positioned at the position that does not contact with filter cartridge construction for can be directly and the contacted position of filter cartridge construction.Be good wherein, help reducing filter loss, improve the filtering response rate with the former.Adopt latter's mode, then maintain the corresponding liquid passage between mouthful end and filter cartridge construction within it.
Particularly, said this plastic material frame and soft film material in said structure, or plastic material frame, catheter and soft film material are the homogeneous material that is easy to mutual heat fused, as when being the medical PVC material, can more help realizing mutual heat fused therebetween, and guarantee the reliability of fusion performance effect.
Because the catheter in this utility model said structure form filters, be by engaging with soft film material and plastic material frame, thoroughly solved at present because of the not homogeneity between catheter and material for core and heat fused area are too small and caused being prone to mortality defectives such as rosin joint, dry joint and super weldering therebetween, product quality is reliably guaranteed.
Below, foregoing of the present utility model is described in further detail again by the specific embodiment by the accompanying drawing illustrated embodiment.But this should be interpreted as that the scope of the above-mentioned theme of this utility model only limits to following example.Do not breaking away under the above-mentioned technological thought situation of this utility model, various replacements or change according to ordinary skill knowledge and customary means are made all should be included in the scope of the present utility model.
Description of drawings
Fig. 1 is a kind of front status architecture sketch map of this utility model filters.
Fig. 2 is the sketch map of the A-A cross-section structure of Fig. 1.
Fig. 3 is the structure enlarged diagram of local B among Fig. 2.
The specific embodiment
This utility model medical filter as shown in the figure is a fillet quadrangle form.In the sealing cavity volume that forms by two-layer medical PVC plastics soft film material 5 in the usual way, be gripped with the filter cartridge construction of forming by stacked filtering material 4.Wherein, at peripheral surface place, the both sides of filter cartridge construction 4, engaging has the edge sealing 2 that is all the PVC plastic material.Lay respectively at filter cartridge construction 4 and filter two catheters 1 of path two sides, be arranged at respectively between the soft film material 5 and plastic material frame 2 of its place side, and be encapsulated in admittedly by soft film material 5 and plastic material frame 2 and close in the common fusion periphery 3 that forms of equipment institute through thermosols such as high frequency or ultrasound wave.The internal orifice end of two catheters 1 lay respectively at can with filter cartridge construction 4 contacted positions, though or do not contact with filter cartridge construction 4, and 4 of filter cartridge constructions maintain fluid passage.
The plastic material frame 2 of said these filter cartridge construction 4 peripheries, but can adopt one by the integral plastics material frame 2 of package in its periphery both sides, make the periphery both sides heat fused of itself and filter cartridge construction 4 and form the unitary version of filter cartridge construction of overall structure form, also can adopt the plastic material frame 2 that is engaged in the absolute construction form of filter cartridge construction 4 both sides by two independent respectively hot melts, and through equipment such as high frequency or ultrasound wave by with the common heat fused peripheries that form of the soft film material 5 of its both sides, filter cartridge construction 4 is closed in version in the cavity volume.
Claims (5)
1. medical filter, in the cavity volume that forms by two layers of plastic soft film material (5), be gripped with the filter cartridge construction of forming by stacked filtering material (4), two soft film material (5) and filter cartridge construction (4) seal through the common heat fused periphery (3) of its periphery, on the both sides of this cavity volume plastics soft film material (5), respectively be provided with one respectively and be communicated with the inside and outside catheter (1) of cavity volume, the internal orifice of two catheters lays respectively at the two sides that filter cartridge construction (4) filters path, the peripheral surface place that it is characterized in that filter cartridge construction (4) both sides engages the plastic material frame (2) that is useful on the sealing of said soft film material (5) hot melt, two catheters (1) lay respectively between the soft film material (5) and this plastic material frame (2) of its place side, and be encapsulated in admittedly in the heat fused periphery that forms by soft film material (5) and plastic material frame (2), maintain fluid passage between its internal orifice end and filter cartridge construction (4).
2. medical filter as claimed in claim 1, it is characterized in that said filter cartridge construction (4) but by package in the integral plastics material frame (2) of its periphery both sides with it periphery both sides heat fused form the filter cartridge construction unit of overall structure form.
3. medical filter as claimed in claim 1, it is characterized in that said plastic material frame (2) is two absolute construction forms that are engaged in filter cartridge construction (4) both sides respectively separately, and filter cartridge construction (4) is closed in the cavity volume with the common heat fused periphery that forms of the soft film material (5) of both sides.
4. as the described medical filter of one of claim 1 to 3, it is characterized in that the said internal orifice end that is encapsulated in the catheter (1) between soft film material (5) and the plastic material frame (2) admittedly, be positioned at and contact with filter cartridge construction (4) or mutually position not.
5. as the described medical filter of one of claim 1 to 3, it is characterized in that said plastic material frame (2) and soft film material (5) are the homogeneous material that is easy to mutual heat fused.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200804978U CN201067558Y (en) | 2007-07-30 | 2007-07-30 | Medical filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200804978U CN201067558Y (en) | 2007-07-30 | 2007-07-30 | Medical filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201067558Y true CN201067558Y (en) | 2008-06-04 |
Family
ID=39488931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200804978U Expired - Lifetime CN201067558Y (en) | 2007-07-30 | 2007-07-30 | Medical filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201067558Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102921212A (en) * | 2011-08-08 | 2013-02-13 | 四川西陇化工有限公司 | Filtering device for chemical reagent of hydrogen peroxide |
| 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 |
-
2007
- 2007-07-30 CN CNU2007200804978U patent/CN201067558Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102921212A (en) * | 2011-08-08 | 2013-02-13 | 四川西陇化工有限公司 | Filtering device for chemical reagent of hydrogen peroxide |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WANG XINPING Free format text: FORMER OWNER: GUANGZHOU SUICHANG BIOTECH CO., LTD. Effective date: 20100625 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 510405 ROOM 202, NO.12, YUNYUANER STREET, GUANGYUAN MIDDLE ROAD, GUANGZHOU CITY, GUANGDONG PROVINCE TO: 510061 ROOM 2703, NO.232, LINHE STREET, TIANHE DISTRICT, GUANGZHOU CITY, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100625 Address after: 2703 room 232, 510061 Lin Lin Street, Guangzhou, Guangdong, Tianhe District Patentee after: Wang Xinping Address before: Two street 510405 Guangdong province Guangzhou City Guangyuan Road No. 12, Room 202 yuan cloud Patentee before: Guangzhou Suichang Biological Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080604 |