System and method for measuring the pressure of a fluid system within a patient
AssigneeCodman & Shurtleff, Inc.
InventorsStephen Wilson, Alan Dextradeur
Life of this patent
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Abstract
A pressure sensing apparatus has a pressure sensor component that includes a pressure sensing port, a pressure sensor for sensing a pressure of a fluid in the pressure sensing port, and a digital processor communicating with the pressure sensor for performing calculations involving fluid pressures sensed. The pressure sensing apparatus further includes a first chamber in fluid contact with the pressure sensing port, a second chamber fluidically connectable with a patient's cerebrospinal fluid system, and a membrane located between the first and second chambers so as to transmit fluid pressure from the second chamber to the first chamber.
Claims26
A pressure sensing apparatus comprising:
- a pressure sensor component having a pressure sensing port, a pressure sensor for sensing a pressure of a fluid in the pressure sensing port, and a digital processor communicating with the pressure sensor for performing calculations involving fluid pressures sensed;
- a first chamber in fluid contact with the pressure sensing port;
- a second chamber fluidically connectable with a patient's cerebrospinal fluid system;
- and
- a membrane located between the first and second chambers so as to transmit fluid pressure from the second chamber to the first chamber.
A pressure sensor component comprising:
- a pressure sensing port for containing a fluid for pressure sensing;
- a pressure sensor for measuring a pressure of a fluid in the pressure sensing port;
- and
- a processor in electrical communication with the pressure sensor, the processor being configured to calculate at least one selected from the group consisting of resting pressure, outflow resistance, and pressure volume index based on fluid pressure measured by the pressure sensor.
A method for measuring a pressure of a cerebrospinal fluid system in a patient comprising:
- providing a pressure sensing system having a sterile portion for connecting to a patient's cerebrospinal fluid system and a non-sterile portion including a pressure sensor component having a pressure sensor and a processor for analyzing cerebrospinal fluid pressures measured by the pressure sensor;
- connecting the non-sterile portion to the patient's cerebrospinal fluid system;
- measuring and displaying the patient's cerebrospinal fluid pressure on the pressure sensor component.
Dependencies are inferred from the claim text.