Filtration assembly for peridural anesthesia
AssigneeMillipore Corporation
InventorJean Lemonnier
Life of this patent
Estimating the term…
Abstract
A filtration apparatus suitable for use in peridural anesthesia formed of two mating sections and a membrane positioned between and supported by the sections. Each section has an liquid inlet or liquid outlet and are joined together to form a chamber therebetween. The membrane is positioned at an angle between about 5.degree. and 15.degree. relative to the axes of the inlet and outlet.
Claims11
A filtration apparatus for peridural anesthesia comprising an envelope formed of two sections joined to each other, each section having top and bottom faces, a filter membrane positioned between said sections, each of said sections having an inlet or outlet opening that communicates with a chamber and having membrane support elements, characterized in that the membrane support elements of each of the two sections have a membrane support surface that forms an acute angle with respect to the axes of the inlet and outlet openings and that one face of one of the two membrane support surfaces includes a plane peripheral crown that is devoid of any projection beyond said peripheral crown.
Dependencies are inferred from the claim text.