MEDICAL DEVICE AND RELATED ASSEMBLY HAVING AN OFFSET ELEMENT FOR A PIEZOELECTRIC SPEAKER
First Claim
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1. A medical device comprising:
- a rigid housing having an interior surface;
a piezoelectric speaker enclosed within the rigid housing, the piezoelectric speaker comprising an actuator that is controlled to generate sound during operation of the medical device; and
an offset element located between the interior surface and the actuator, wherein the offset element, the actuator, and the interior surface at least partially define a resonant cavity for the piezoelectric speaker.
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Abstract
A device for delivering fluid to a user includes a housing, a drive motor assembly in the housing, other internal components in the housing, and a keypad external to the housing. The device includes a number of features and elements that enhance its operation, manufacturability, reliability, and user-friendliness. These features and elements include a shock absorbing element for a battery of the device, a keypad actuator layer that overlies a keypad assembly and forms a water resistant seal with the housing, and an offset element for a piezoelectric speaker that is located inside the housing.
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Citations
19 Claims
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1. A medical device comprising:
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a rigid housing having an interior surface; a piezoelectric speaker enclosed within the rigid housing, the piezoelectric speaker comprising an actuator that is controlled to generate sound during operation of the medical device; and an offset element located between the interior surface and the actuator, wherein the offset element, the actuator, and the interior surface at least partially define a resonant cavity for the piezoelectric speaker. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A transducer assembly for a medical device comprising a rigid housing having a flat interior surface, the transducer assembly comprising:
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a piezoelectric speaker comprising an actuator; and an offset element for the piezoelectric speaker, the offset element comprising an actuator side that mates with the piezoelectric speaker, a housing side that mates with the flat interior surface of the rigid housing, and an opening formed therein and extending from the actuator side to the housing side, wherein the actuator side and the housing side are separated by an offset thickness, and the opening and the offset thickness at least partially define a resonant cavity for the piezoelectric speaker. - View Dependent Claims (8, 9, 10, 11, 12)
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13. An electronic assembly for a medical device, comprising:
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a carrier substrate; a piezoelectric speaker having a first major side and a second major side, the first major side coupled to the carrier substrate; and an offset ring coupled to the second major side of the piezoelectric speaker, the offset ring having an opening formed therein through which a portion of the second major side is exposed, wherein the opening at least partially defines a resonant cavity for the piezoelectric speaker. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification