DE4108015A1 - Filter with membrane or fabric filter injection moulded into plastic frame - used for engineering and medical applications - Google Patents
Filter with membrane or fabric filter injection moulded into plastic frame - used for engineering and medical applicationsInfo
- Publication number
- DE4108015A1 DE4108015A1 DE4108015A DE4108015A DE4108015A1 DE 4108015 A1 DE4108015 A1 DE 4108015A1 DE 4108015 A DE4108015 A DE 4108015A DE 4108015 A DE4108015 A DE 4108015A DE 4108015 A1 DE4108015 A1 DE 4108015A1
- Authority
- DE
- Germany
- Prior art keywords
- membrane
- filter
- plastic frame
- fabric
- plastic
- 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.)
- Withdrawn
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 16
- 239000004744 fabric Substances 0.000 title claims abstract description 9
- 238000002347 injection Methods 0.000 title 1
- 239000007924 injection Substances 0.000 title 1
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 14
- 238000001746 injection moulding Methods 0.000 claims abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/08—Flat membrane modules
- B01D63/081—Manufacturing thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/012—Making filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/05—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements supported
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Prostheses (AREA)
Abstract
Description
Die Erfindung bezieht sich auf einen Filter für den technischen und medizinischen Bereich. Der Filter besteht aus einer hydrophoben Membrane bzw. sehr dichtem hydrophoben Gewebe in einem Kunststoffrahmen.The invention relates to a filter for the technical and medical field. The filter exists from a hydrophobic membrane or very dense hydrophobic Fabric in a plastic frame.
Solche Filter werden seit Jahren gefertigt und im technischen und medizinischen Bereich verwandt. Für die Herstellung ist es bekannt, daß die Membrane oder das Gewebe zwischen zwei vorgefertigte Kunststoffteile gelegt wird, welche mit Klemmvorrichtungen versehen sind. Anschließend werden die beiden Kunststoffteile auf verschiedene Arten - Ultraschallschweißverfahren, Kleben, Klips - verbunden, so daß die Membrane bzw. das Gewebe zwischen dem Unter- und Oberteil eingeklemmt wird.Such filters have been manufactured for years and in related technical and medical field. For the Manufacturing it is known that the membrane or the fabric is placed between two prefabricated plastic parts, which are provided with clamping devices. Subsequently the two plastic parts in different ways - Ultrasonic welding process, gluing, clips - connected, so that the membrane or tissue between the lower and Upper part is pinched.
Dieses Verfahren ist sehr aufwendig, da zuerst ein Unter- und Oberteil hergestellt werden muß. Auch das Konfektionieren und Einbringen der Membrane bzw. des hydrophoben Gewebes zwischen diesen beiden Teile und deren Verbindung ist mit einem relativ großen Aufwand verbunden, welcher sich auch in relativ hohen Kosten widerspiegelt. In der Formgebung und Größe ist man bei diesen Verfahren sehr eingeengt.This process is very complex, since first a sub and Upper part must be made. That too Assembling and inserting the membrane or hydrophobic tissue between these two parts and their Connection is relatively expensive, which is also reflected in relatively high costs. In the shape and size of these processes is very great constricted.
Der Erfindung liegt die Aufgabe zugrunde, die vorstehend genannten Nachteile bei der Fertigung der Filter der eingangs genannten Art zu beseitigen und Filter zu schaffen, die einfach in der Herstellung, vielseitig in der Formgebung und Größe sind, sowie eine hohe Dichtigkeit aufweisen.The invention has for its object the above Disadvantages mentioned in the manufacture of the filter to eliminate the type mentioned at the beginning and to create filters, which are easy to manufacture, versatile in design and size, and have a high level of tightness.
Erreicht ist dieses Ziel dadurch, daß der Filter in einem Arbeitsgang durch das Kunststoffspritzgießverfahren hergestellt wird. Die Membranbefestigung bzw. Befestigung des hydrophoben Gewebes beim Kunststofformgeben im Kunststoffrahmen (3) wird hierbei sichergestellt. Die Membrane bzw. das hydrophobe Gewebe (1+2) wird im Formnest durch 2 Kerne so gehalten, daß die Filterfläche beim Einspritzen des Kunststoffs bedeckt wird. Damit wird erreicht, daß die Filterfläche von Kunststoff frei bleibt.This goal is achieved in that the filter is produced in one operation by the plastic injection molding process. The membrane attachment or attachment of the hydrophobic fabric when molding in the plastic frame ( 3 ) is ensured. The membrane or the hydrophobic fabric (1 + 2) is held in the mold cavity by 2 cores so that the filter surface is covered when the plastic is injected. This ensures that the filter surface remains free of plastic.
Der äußere Rand der Membrane bzw. des hydrophoben Gewebes kann unter anderem durch eine Art Verzahnung so gehalten werden, daß der Kunststoff dazwischen fließt. Die Verzahnung hält die Membrane bzw. das hydrophobe Gewebe in der Mitte des Formnestes, wodurch ein Wegdrücken vermieden wird. Diese Verzahnung kann verschiedenartig ausgeführt werden. The outer edge of the membrane or the hydrophobic tissue can be held in this way, inter alia, by a kind of toothing that the plastic flows between them. The gearing keeps the membrane or the hydrophobic tissue in the middle of the mold nest, thereby avoiding pushing away. These Gearing can be designed in different ways.
Eine weitere Stabilität bringt das zusätzliche Einbringen eines grobmaschigen Gewebes auf einer der beiden Seiten der Membrane bzw. des hydrophoben Gewebes, welches sich in den Kunststoff einbindet und so der empfindlichen Membrane bzw. dem hydrophoben Gewebe einen zusätzlichen Schutz und Festigkeit bietet.The additional insertion brings further stability a coarse mesh on one of the two sides of the Membrane or the hydrophobic tissue, which is in the Integrates plastic and so the sensitive membrane or the hydrophobic tissue an additional protection and Offers strength.
Wie ausgeführt, können auf diese Weise in einem Arbeitsgang Filter von verschiedenster Form gefertigt werden. Dies erfordert lediglich eine jeweils andere Ausgestaltung der Formkerne.As stated, this can be done in one operation Filters of various shapes can be made. This only requires a different design of the Mold cores.
Claims (1)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4108015A DE4108015A1 (en) | 1991-03-13 | 1991-03-13 | Filter with membrane or fabric filter injection moulded into plastic frame - used for engineering and medical applications |
| DE19914122241 DE4122241A1 (en) | 1991-03-13 | 1991-07-05 | Domed filter for medical and technical applications - comprises membrane and hydrophobic weave shaped by underlying core, with plastic ribs on both sides of filter face for strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4108015A DE4108015A1 (en) | 1991-03-13 | 1991-03-13 | Filter with membrane or fabric filter injection moulded into plastic frame - used for engineering and medical applications |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE4108015A1 true DE4108015A1 (en) | 1992-09-17 |
Family
ID=6427118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE4108015A Withdrawn DE4108015A1 (en) | 1991-03-13 | 1991-03-13 | Filter with membrane or fabric filter injection moulded into plastic frame - used for engineering and medical applications |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE4108015A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6497685B1 (en) | 2000-03-24 | 2002-12-24 | Baxter International Inc. | Integral intravenous chamber and filter |
| WO2007085921A2 (en) * | 2006-01-26 | 2007-08-02 | Aroma System Srl | Filtering package for infusion products |
| WO2008092379A1 (en) * | 2007-01-24 | 2008-08-07 | Xingyuan Zhu | Diaphragm and filter plate and their molding methods |
| WO2014016379A1 (en) * | 2012-07-25 | 2014-01-30 | Universite Du Luxembourg | Membrane assembly |
-
1991
- 1991-03-13 DE DE4108015A patent/DE4108015A1/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6497685B1 (en) | 2000-03-24 | 2002-12-24 | Baxter International Inc. | Integral intravenous chamber and filter |
| WO2007085921A2 (en) * | 2006-01-26 | 2007-08-02 | Aroma System Srl | Filtering package for infusion products |
| WO2007085921A3 (en) * | 2006-01-26 | 2007-11-01 | Aroma System Srl | Filtering package for infusion products |
| WO2008092379A1 (en) * | 2007-01-24 | 2008-08-07 | Xingyuan Zhu | Diaphragm and filter plate and their molding methods |
| WO2014016379A1 (en) * | 2012-07-25 | 2014-01-30 | Universite Du Luxembourg | Membrane assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AG | Has addition no. |
Ref country code: DE Ref document number: 4122241 Format of ref document f/p: P |
|
| 8139 | Disposal/non-payment of the annual fee |