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:
Dec. 10, 2013
Filed:
Jul. 16, 2012
Brian Hoffman, Princeton, NJ (US);
Michael Mcdermott, San Francisco, CA (US);
William R. Chang, Colonia, NJ (US);
Eric Scott Clasen, Hillsborough, NJ (US);
Brian Hoffman, Princeton, NJ (US);
Michael McDermott, San Francisco, CA (US);
William R. Chang, Colonia, NJ (US);
Eric Scott Clasen, Hillsborough, NJ (US);
Integra LifeSciences Corporation, Plainsboro, NJ (US);
The Regents of the University of California, Oakland, CA (US);
Abstract
A system and method are disclosed for automatically limiting the drainage of a bodily fluid such as cerebrospinal fluid (CSF) from a patient into a collection chamber. The collection chamber includes a vent having an hydrophobic filter for the passage of air to facilitate the movement of CSF yet to maintain a closed system. The system includes a buoyant float hingedly connected with the top of the collection chamber in one embodiment. When fluid rises in the collection chamber to a predetermined volume, buoyant force raises the float and causes a seal plug mounted on top of the float to seal one of an inflow port or a vent port. The float is limited to pivoting movement in one plane and to a certain angle within that plane. The system and method avoid overdrainage of CSF from the patient and overfilling of the collection chamber.