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:
Apr. 04, 2006
Filed:
Apr. 30, 2002
David Kuhn, Lake Bluff, IL (US);
Jason Cartwright, Libertyville, IL (US);
Ed Chim, Vernon Hills, IL (US);
Jan Jensen, Waukegan, IL (US);
Michael R. Prisco, Geneva, IL (US);
Jerry Ripley, McHenry, IL (US);
David Kuhn, Lake Bluff, IL (US);
Jason Cartwright, Libertyville, IL (US);
Ed Chim, Vernon Hills, IL (US);
Jan Jensen, Waukegan, IL (US);
Michael R. Prisco, Geneva, IL (US);
Jerry Ripley, McHenry, IL (US);
Baxter International Inc., Deerfield, IL (US);
Baxter Healthcare S.A., Zurich, CH;
Abstract
The present invention lessens the amount of air entering between mating membranes of a pressure sensor. The pressure sensor of the present invention includes a transducer portion and separate patient or medical fluid transfer portion or dome. The transducer portion is reusable and the dome is disposable. The dome defines a fluid flow chamber that is bounded on one side by a dome membrane. Likewise, the transducer is mounted inside a housing, wherein the housing defines a surface that holds a transducer membrane. The two membranes mate when the dome is fitted onto the transducer housing. The pressure sensor enhances the seal between the mated membranes by creating higher localized contact stresses. The pressure sensor also reduces the amount of gas that permeates from the fluid chamber across the dome membrane and between the interface by making the dome membrane from a material having a low vapor transmission.