Pressure sensing implant
First Claim
1. An implant comprising:
- a wireless implant housing that defines a cavity;
a sensor connected to said wireless implant housing comprising;
a diaphragm having at least one diaphragm electrode;
a base attached directly to a surface of the diaphragm, the base includes at least one base electrode, wherein said base and said diaphragm define a capacitive gap between the at least one diaphragm electrode and the at least one base electrode, wherein the base is made from a non conductive material; and
wherein said base is directly attached to said diaphragm along an attachment configuration, wherein said attachment configuration includes a discontinuity through which at least one electrical trace connects at least one electrical contact outside of said capacitive gap to the at least one diaphragm electrode and/or the at least one base electrode, and wherein said discontinuity is a vent to allow the passage of fluid or gas between the cavity and the capacitive gap.
1 Assignment
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Accused Products
Abstract
Disclosed is an implant and method of making an implant. The implant having a housing that defines a cavity. The housing includes a sensor comprising a base attached to a diaphragm wherein said base may be positioned within said cavity. The sensor may be a capacitive pressure sensor. The diaphragm may be connected to the housing to hermetically seal said housing. The sensor may include electrical contacts positioned on the diaphragm. The base may define a capacitive gap and a vent wherein the electrodes may be positioned within said capacitive gap such that at least a portion of the electrical contacts extend through the vent. The implant may include a coil in electric communication with the sensor, said coil may be positioned within said housing. A printed circuit board having at least one component may be attached to the floating base.
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Citations
23 Claims
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1. An implant comprising:
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a wireless implant housing that defines a cavity; a sensor connected to said wireless implant housing comprising; a diaphragm having at least one diaphragm electrode; a base attached directly to a surface of the diaphragm, the base includes at least one base electrode, wherein said base and said diaphragm define a capacitive gap between the at least one diaphragm electrode and the at least one base electrode, wherein the base is made from a non conductive material; and wherein said base is directly attached to said diaphragm along an attachment configuration, wherein said attachment configuration includes a discontinuity through which at least one electrical trace connects at least one electrical contact outside of said capacitive gap to the at least one diaphragm electrode and/or the at least one base electrode, and wherein said discontinuity is a vent to allow the passage of fluid or gas between the cavity and the capacitive gap. - 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)
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Specification