ACOUSTIC SENSOR ASSEMBLY
1 Assignment
0 Petitions
Accused Products
Abstract
An acoustic sensor is configured to provide accurate and robust measurement of bodily sounds under a variety of conditions, such as in noisy environments or in situations in which stress, strain, or movement may be imparted onto a sensor with respect to a patient. Embodiments of the sensor provide a conformable electrical shielding, as well as improved acoustic and mechanical coupling between the sensor and the measurement site.
227 Citations
17 Claims
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1. (canceled)
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2. An acoustic sensor assembly comprising:
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a sensing element that is stretched in tension across an open cavity of the acoustic sensor assembly and that is configured to generate a signal responsive to acoustic vibrations, the sensing element comprising a piezoelectric material; an acoustic coupler including an inner protrusion that extends into the open cavity and is positioned to apply pressure to the sensing element to push a section of the sensing element into the open cavity both when the acoustic sensor assembly is attached to a medical patient and when the acoustic sensor assembly is not attached to the medical patient; and an elastic portion configured to, through stretching of the elastic portion, apply a force to press the acoustic sensor assembly against a tissue site of the medical patient when the acoustic sensor assembly is attached to the medical patient. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification