Microvalve
First Claim
Patent Images
1. A microvalve for disposable use comprising:
- a casing;
at least one valve seat formed in the casing;
a closing element disposed in the at least one valve seat, the closing element being fusible under thermal application for opening or closing of the microvalve; and
at least one electrical heating element thermally coupled to the closing element for supplying heat to the closing element;
wherein, upon fusing, a central portion of the closing element melts open for opening the microvalve or the closing element melts into a central portion for closing the microvalve.
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Abstract
The invention relates to a microvalve for disposable use with a casing with at least one valve seat and a closing element fusible under thermal application for the opening and/or closing of the microvalve with electrical heating elements serving the thermal application being provided.
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Citations
16 Claims
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1. A microvalve for disposable use comprising:
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a casing; at least one valve seat formed in the casing; a closing element disposed in the at least one valve seat, the closing element being fusible under thermal application for opening or closing of the microvalve; and at least one electrical heating element thermally coupled to the closing element for supplying heat to the closing element; wherein, upon fusing, a central portion of the closing element melts open for opening the microvalve or the closing element melts into a central portion for closing the microvalve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A microvalve for disposable use comprising:
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a casing; at least one valve seat formed in the casing; a closing element disposed in the at least one valve seat, the closing element being fusible under thermal application for opening or closing of the microvalve; and at least one electrical heating element comprising a perforated resistance plate, wherein the closing element is applied to the perforated resistance plate by at least one of pressing, gluing, welding and fusing under thermal application; wherein, upon fusing, a central portion of the closing element melts open for opening the microvalve or the closing element melts into a central portion for closing the microvalve.
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16. A microvalve for disposable use comprising:
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a casing; at least one valve seat formed in the casing; a closing element disposed in the at least one valve seat, the closing element being fusible under thermal application for opening or closing of the microvalve; and at least one electrical heating element thermally coupled to the closing element, wherein the electrical heating element comprises a thermostatically controlled, perforated PTC (Positive Temperature Coefficient) resistor.
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Specification