Multi-antenna for an implantable medical device
First Claim
1. An implantable medical device, comprising:
- a housing;
electronic circuitry within the housing; and
an array of antennas connected to the electronic circuitry, wherein the array and circuitry are adapted to facilitate transmission and reception of modulated radio-frequency energy at one or more specified carrier frequencies;
wherein individual antenna elements in the array are connected in a mutually exclusive manner to electronic circuitry having a single transmit/receive antenna port using a switch; and
wherein a state of the switch is changed to (1) minimize an observed error rate, or (2) to restore communication upon loss of radio frequency communication.
1 Assignment
0 Petitions
Accused Products
Abstract
A system for enabling telemetry in implantable medical devices is provided. An implantable medical device has device having radio-frequency telemetry capabilities. The device includes a housing and electronic circuitry contained within the housing. The device also includes an array of antennas connected to the electronic circuitry. According to various embodiments, the array and circuitry are adapted to facilitate far-field transmission and reception of modulated radio-frequency energy at one or more specified carrier frequencies. Individual antenna elements in the array are connected simultaneously or in a mutually exclusive manner to electronic circuitry, according to various embodiments. Individual antenna element geometries are sized to optimize individual antennas each for a different range of operating frequencies, according to various embodiments. Other aspects and embodiments are provided herein.
114 Citations
27 Claims
-
1. An implantable medical device, comprising:
-
a housing; electronic circuitry within the housing; and an array of antennas connected to the electronic circuitry, wherein the array and circuitry are adapted to facilitate transmission and reception of modulated radio-frequency energy at one or more specified carrier frequencies; wherein individual antenna elements in the array are connected in a mutually exclusive manner to electronic circuitry having a single transmit/receive antenna port using a switch; and wherein a state of the switch is changed to (1) minimize an observed error rate, or (2) to restore communication upon loss of radio frequency communication. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. An implantable medical device, comprising:
-
a housing; electronic circuitry within the housing; and an array of antennas connected to the electronic circuitry, wherein the array and circuitry are adapted to facilitate transmission and reception of modulated radio-frequency energy at one or more specified carrier frequencies; and wherein individual antenna elements in the array are each connected to electronic circuitry having a single transmit/receive antenna port via inline phase shifting elements, such that each antenna element transmits/receives a proportion of radio-frequency energy to the electronic circuitry with a phase shift. - View Dependent Claims (15, 16, 17, 18, 19, 20)
-
-
21. An implantable medical device, comprising:
-
a housing; electronic circuitry within the housing; and an array of antennas connected to the electronic circuitry, wherein the array and circuitry are adapted to facilitate transmission and reception of modulated radio-frequency energy at one or more specified carrier frequencies; wherein individual antenna elements in the array are each connected to electronic circuitry having multiple transmit/receive antenna ports, such that each antenna element is capable of operating independently; and wherein each antenna element in the array is at least one of (1) phase-shifted by logic according to a fixed sequence of states, (2) switched by logic to minimize an observed error rate, or (3) phase-shifted by logic to minimize an observed error rate, or wherein at least one antenna element in the array is switched by logic to restore communication upon loss of radio frequency communication. - View Dependent Claims (22, 23, 24, 25, 26, 27)
-
Specification