SHAPED ELASTOMERIC INFUSION PUMP
The present invention is directed to a portable apparatus for dispensing a liquid under pressure at a substantially constant flow rate over a period of time. The apparatus includes an inflatable, internal bladder constructed of a compliant, elastomeric material and an external housing surrounding th...
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Format: | Patent |
Sprache: | eng ; spa |
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Zusammenfassung: | The present invention is directed to a portable apparatus for dispensing a liquid under pressure at a substantially constant flow rate over a period of time. The apparatus includes an inflatable, internal bladder constructed of a compliant, elastomeric material and an external housing surrounding the internal bladder. Further, the external housing is constructed of a non-compliant, elastomeric material. Thus, during operation, the external housing shapes the internal bladder as the internal bladder is being filled with a treatment fluid and collapses as the treatment fluid is emptied from the internal bladder.
La presente invención está dirigida a un aparato portátil para abastecer un líquido bajo presión a una tasa de flujo constante de manera sustancial por un periodo de tiempo. El aparato incluye un globo interno, inflable construido de un material elastomérico dúctil y una carcasa externa que rodea al globo interno. Además, la carcasa externa está hecha de un material elastomérico no dúctil. De esta manera, durante la operación, la carcasa externa da forma al globo interno en tanto el globo interno se llena con un líquido de tratamiento y colapsa cuando el líquido de tratamiento se haya vaciado del globo interno. |
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