Disposable Blood Pressure Transducer And Monitor Interface
First Claim
1. A method of sensing fluid pressures in a patient using a fluid pressure sensing system, the method comprising:
- establishing communication between an identifier of the system and a signal receiving device of the system, wherein the identifier characterizes a pressure transducing device of the system and comprises a resistance/capacitance (RC) combination possessing a characteristic time constant within 20% of a reference value; and
comparing, using decision-making circuitry of the signal receiving device, the characteristic time constant and the reference value and permitting or not permitting additional processing by the system based on a result of the comparison.
1 Assignment
0 Petitions
Accused Products
Abstract
A medical blood pressure transducer that provides an identifier to a monitor that conveys characteristics of the transducer. The monitor can use the information to decide whether to function, or in calibration of the system. The transducer may be part of a disposable blood pressure monitoring system, and may include two transducers closely-spaced to provide two separate but identical outputs. In this way, the transducer may be connected to both a patient monitor and a cardiac output monitor at the same time measurements from a single line can be simultaneously supplied to two separate monitoring devices (for example a patient monitor and a cardiac output monitor). The identifier for the transducer may be circuitry, specifically a resistance/capacitance (RC) combination that possesses a characteristic time constant.
41 Citations
17 Claims
-
1. A method of sensing fluid pressures in a patient using a fluid pressure sensing system, the method comprising:
-
establishing communication between an identifier of the system and a signal receiving device of the system, wherein the identifier characterizes a pressure transducing device of the system and comprises a resistance/capacitance (RC) combination possessing a characteristic time constant within 20% of a reference value; and comparing, using decision-making circuitry of the signal receiving device, the characteristic time constant and the reference value and permitting or not permitting additional processing by the system based on a result of the comparison. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A system for measuring fluid pressures in a patient, the system comprising:
-
a pressure transducer configured to measure patient fluid pressures; an identifier including a resistance/capacitance (RC) combination possessing a characteristic time constant within 20% of a reference value, the identifier characterizing the pressure transducer; and a signal receiver configured to communicate with the identifier, the signal receiver configured to compare the characteristic time constant to the reference value and permit, or not permit, additional processing by the system based on a result of the comparison. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
-
Specification