Barrier coating on blood contacting devices
Patent 5067491 Issued on November 26, 1991. Estimated Expiration Date: 
December 8, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 8, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3710078 3811427 3831588 Device for measuring pressure Catheter head-type transducer Catheter tip pressure transducer Nonthrombogenic articles and method of preparation Catheter Catheter tip pressure transducer Disposable intracompartmental pressure transducer InventorsApplicationNo. 448034 filed on 12/08/1989US Classes:600/561, Measuring fluid pressure in body600/486Testing means inserted in bodyExaminersPrimary: Howell, Kyle L.Assistant: Nasser, Robert L. Attorney, Agent or FirmForeign Patent References
International ClassA61B 005/021.5AbstractA blood pressure monitoring device includes a pressure sensing element mounted or a probe tip or in a catheter tip adapted for insertion into a patient's blood stream. The element includes a pressure transducer having a micromachined diaphragm which flexes in response to pressure changes. The flexes are converted by the transducer to electrical signals which pass back through the catheter to a display. The element and the catheter are conformally coated with a thin layer of parylene which insulates the device from the deleterious effects which blood components such as water and ions would otherwise have on various components of the device.Other References
| |
