Fiber optic intravascular blood pressure transducer
Patent 4991590 Issued on February 12, 1991. Estimated Expiration Date: 
January 30, 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.
January 30, 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 3273447 Device for measuring pressure 4030485 Optical fiber pressure transducer Fiber optic probe for quantification of colorimetric reactions Multiple-function cardiovascular catheter system with very high lumenal efficiency and no crossovers Patent #: 4718423 InventorAssigneeApplicationNo. 303847 filed on 01/30/1989US Classes:600/480, Pressure in blood vessel73/705, Photoelectric73/715, Diaphragm600/488, Pressure transducer structure600/561Measuring fluid pressure in bodyExaminersPrimary: Howell, Kyle L.Assistant: Pfaffle, K. M. Attorney, Agent or FirmInternational ClassA61B 005/021.5AbstractA device for the measurement of the blood pressure of a patient includes an arrangement for transmitting a light through an optical fiber; an arrangement for receiving and measuring a reflected light through an optical fiber; and a cylindrically shaped pressure sensor having a side window and a plate having two sections which moves in accordance with the applied blood pressure thereby causing the reflection and detection of different amounts of light based on the applied blood pressure at the window.Other References
| |
