Wireless flow sensor
First Claim
1. An implantable sensor, comprising:
- a sensor housing adapted to receive fluid flow therethrough; and
a conductive member disposed within the sensor housing and configured to selectively cover different portions of a radio frequency tag based on a rate of fluid flowing through the sensor housing and thereby alter a response thereof to a received wireless signal to indicate a rate of fluid flowing through the sensor.
2 Assignments
0 Petitions
Accused Products
Abstract
Devices and methods useful for non-invasively measuring and indicating a rate of fluid flow are disclosed. In one embodiment, a sensor housing adapted to received fluid flow therethrough is provided. A radio frequency tag and a masking element can be disposed in the sensor housing. The masking element and the radio frequency tag can be configured to move relative to one another. The relative positions or movement can alter the response of the radio frequency tag to a wireless signal (which can be emitted from an external reading device, for example) and thereby indicate a rate of fluid flowing through the housing. For example, in some embodiments, the masking element can selectively cover at least part of the radio frequency tag in correspondence to the flow rate, which can change a characteristic of the radio frequency tag'"'"'s response to the wireless signal.
-
Citations
14 Claims
-
1. An implantable sensor, comprising:
-
a sensor housing adapted to receive fluid flow therethrough; and a conductive member disposed within the sensor housing and configured to selectively cover different portions of a radio frequency tag based on a rate of fluid flowing through the sensor housing and thereby alter a response thereof to a received wireless signal to indicate a rate of fluid flowing through the sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. An implantable sensor, comprising:
-
a sensor housing adapted to receive fluid flow therethrough; a radio frequency tag disposed within the sensor housing, the radio frequency tag being configured to receive a wireless signal from a device that is external to the implantable sensor, and the radio frequency tag being configured to provide a response to the wireless signal, the response indicating a rate of fluid flowing through the sensor housing; and a masking element disposed within the sensor housing and configured to move relative to the radio frequency tag to selectively cover different portions of the radio frequency tag based on a rate of fluid flowing through the sensor housing, the response to the wireless signal being dependent on which portions of the radio frequency tag is covered by a conductive portion of the masking element. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
Specification