Sensor, circuitry, and method for wireless intracranial pressure monitoring
First Claim
1. An intracranial pressure monitoring device, comprising:
- a housing defining a first internal chamber, the first internal chamber being hermetically sealed and having controlled contents to produce an internal pressure in the chamber;
a plurality of strain gauges disposed on an inner surface of a diaphragm defined by a wall of the first internal chamber;
a device for generating orientation signals; and
circuitry coupled to the plurality of strain gauges and to the device for generating orientation signals, the circuitry configured to;
generate intracranial pressure data based at least in part on signals received from the plurality of strain gauges,generate orientation data based on the orientation signals received from the device for generating orientation signals;
store the intracranial pressure data and the orientation data in a computer readable storage such that the intracranial pressure data and orientation data are associated with each other; and
determine the intracranial pressure based on the association of the intracranial pressure data with the orientation data and on the internal pressure in the first internal chamber.
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Accused Products
Abstract
An intracranial pressure monitoring device includes a housing defining a first internal chamber, a plurality of strain gauges disposed on an inner surface of a diaphragm defined by a wall of the first internal chamber, a device for generating orientation signals, and circuitry coupled to the plurality of strain gauges and to the device. The circuitry is configured to generate intracranial pressure data from signals received from the plurality of strain gauges, generate orientation data based on the orientation signals received from the device, and store the intracranial pressure data and the orientation data in a computer readable storage such that the intracranial pressure data and orientation data are associated with each other.
89 Citations
30 Claims
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1. An intracranial pressure monitoring device, comprising:
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a housing defining a first internal chamber, the first internal chamber being hermetically sealed and having controlled contents to produce an internal pressure in the chamber; a plurality of strain gauges disposed on an inner surface of a diaphragm defined by a wall of the first internal chamber; a device for generating orientation signals; and circuitry coupled to the plurality of strain gauges and to the device for generating orientation signals, the circuitry configured to; generate intracranial pressure data based at least in part on signals received from the plurality of strain gauges, generate orientation data based on the orientation signals received from the device for generating orientation signals; store the intracranial pressure data and the orientation data in a computer readable storage such that the intracranial pressure data and orientation data are associated with each other; and determine the intracranial pressure based on the association of the intracranial pressure data with the orientation data and on the internal pressure in the first internal chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. An intracranial pressure monitoring device, comprising:
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a housing defining a first internal chamber and configured to be coupled with a skull, the first internal chamber being hermetically sealed and having controlled contents to produce an internal pressure in the first internal chamber that is less than a pressure outside of the first internal chamber; a plurality of strain gauges disposed on an inner surface of a diaphragm defined by a wall of the first internal chamber; and circuitry coupled to the plurality of strain gauges, the circuitry configured to generate intracranial pressure data based at least in part on signals received from the plurality of strain gauges and to determine the intracranial pressure, wherein the intracranial pressure data is associated with an orientation data, the orientation data indicative of an orientation of the intracranial pressure monitoring device; and wherein the intracranial pressure is determined based on the association of the intracranial pressure data with the orientation data and on the internal pressure in the first internal chamber.
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Specification