The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 10, 2016
Filed:
Jan. 16, 2012
Charles Giezendanner, Morschach, CH;
Martin Melzer, Cham, CH;
Charles Giezendanner, Morschach, CH;
Martin Melzer, Cham, CH;
MEDELA HOLDING AG, Baar, CH;
Abstract
A drainage pump unit for aspirating body fluids by means of a suction pump has a suction pump arranged in a suction pump housing, wherein a fluid collection container can be secured releasably on the suction pump housing, and wherein a capacitive filling level sensor is arranged on the suction pump housing for detecting a filling level in the fluid collection container. The filling level sensor has at least two electrodes, which are arranged at a distance from each other and extend along a common path. A first of the electrodes is in one piece, and a second of the electrodes is segmented. This arrangement permits the production of inexpensive fluid collection containers while still ensuring a high degree of measurement accuracy.