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:
Jun. 14, 1977
Filed:
Feb. 13, 1976
Jose Bisera, Camarillo, CA (US);
James Howard Carrington, Los Angeles, CA (US);
Max Harry Weil, Beverly Hills, CA (US);
Cardio Pulminary Laboratory Research Foundation, Los Angeles, CA (US);
Abstract
An osmotic sensing head for measuring the osmotic pressure of protein molecules in blood, which is of the type that includes a reference chamber for holding saline solution, a sample chamber for holding blood, an osmotic membrane between the chambers, and a pressure sensor coupled to the reference chamber to measure the pressure therein. The sample chamber has a small volume and is provided with an inlet and outlet so that a storage saline solution can be removed and a blood sample introduced by merely flowing the blood sample in through the inlet while allowing the storage solution to pass out through the outlet. The inlet is directed at the membrane at an angle to help wash away material lying on the membrane. The osmotic membrane is held in slight tension by an elastomeric O-ring which presses the membrane against a conical surface.