Wireless Implantable Medical Device
First Claim
1. A wireless implantable medical device comprising:
- a device housing (100);
at least one radio frequency circuit (104) for radio frequency communication;
at least one antenna (102;
200;
300, 301;
400-402;
500;
600;
650;
700;
750, 751;
800;
901, 902;
951, 952;
1000;
1100;
1200;
1300;
1350;
1400;
1420;
1440, 1441;
1460;
1480;
1500, 1501;
1500, 1520;
1500, 1540, 1541;
1500, 1560;
1580, 1581;
1600, 1601;
1620, 1621;
1640, 1641, 1642;
1640, 1641, 1662;
1700;
1800);
at least one terminal to electromagnetically couple said at least one antenna to said at least one radio frequency circuit;
and a dielectric compartment (101, 1661) that encompasses at least a portion of said at least one antenna,wherein said at least one antenna comprises a conducting pattern, at least a portion of which is shaped as a curve, wherein said curve comprises at least five segments, wherein each of said at least five segments forms an angle with each adjacent segment in said curve, wherein at least three of the at least five segments of said curve are shorter than one-fifth of the longest free-space operating wavelength of the antenna, wherein each angle between adjacent segments is less than 180°
, and at least two of the angles between adjacent sections are less than approximately 115°
.
2 Assignments
0 Petitions
Accused Products
Abstract
One aspect of the invention relates to an implantable medical device comprising a device housing (100), at least one radio frequency circuit (104) for radio frequency communication, at least one antenna, at least one terminal to electromagnetically couple said at least one antenna to said at least one radio frequency circuit, and a dielectric compartment (101, 1661) that encompasses at least a portion of said at least one antenna. The antenna comprises a conducting pattern, at least a portion of which is shaped as a curve, wherein said curve comprises at least five segments, wherein each of said at least five segments forms an angle with each adjacent segment in said curve, wherein at least three of the at least five segments of said curve are shorter than one-fifth of the longest free-space operating wavelength of the antenna, wherein each angle between adjacent segments is less than 180°, and at least two of the angles between adjacent sections are less than approximately 115°.
68 Citations
68 Claims
-
1. A wireless implantable medical device comprising:
-
a device housing (100); at least one radio frequency circuit (104) for radio frequency communication; at least one antenna (102;
200;
300, 301;
400-402;
500;
600;
650;
700;
750, 751;
800;
901, 902;
951, 952;
1000;
1100;
1200;
1300;
1350;
1400;
1420;
1440, 1441;
1460;
1480;
1500, 1501;
1500, 1520;
1500, 1540, 1541;
1500, 1560;
1580, 1581;
1600, 1601;
1620, 1621;
1640, 1641, 1642;
1640, 1641, 1662;
1700;
1800);at least one terminal to electromagnetically couple said at least one antenna to said at least one radio frequency circuit; and a dielectric compartment (101, 1661) that encompasses at least a portion of said at least one antenna, wherein said at least one antenna comprises a conducting pattern, at least a portion of which is shaped as a curve, wherein said curve comprises at least five segments, wherein each of said at least five segments forms an angle with each adjacent segment in said curve, wherein at least three of the at least five segments of said curve are shorter than one-fifth of the longest free-space operating wavelength of the antenna, wherein each angle between adjacent segments is less than 180°
, and at least two of the angles between adjacent sections are less than approximately 115°
. - 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, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 62, 63, 64, 65, 66, 67, 68)
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61. A wireless implantable medical device comprising:
-
a metallic housing (100), an electronic circuit (106) that provides a medical function, a radio frequency circuit (104) for radio frequency communication, a power source, an antenna, a radio frequency ground plane, a first terminal to electromagnetically couple the said antenna to the said radio frequency circuit;
a second terminal to electromagnetically couple said radio frequency ground plane to the said radio frequency circuit, and a dielectric header (101) that encompasses at least a portion of said antenna;wherein said antenna comprises a conducting pattern, at least a portion of which includes a curve, said curve being shaped as a space-filling curve and featuring a box-counting dimension larger than 1.15;
wherein said conducting pattern is made of a biocompatible alloy with a conductivity higher than approximately 107S/m;said antenna comprising a first portion and a second portion, wherein said first portion protrudes from said metallic housing, and wherein the second portion is substantially perpendicular to said first portion;
with said second portion arranged substantially perpendicular to the contact surface between the said metallic housing and said header to minimize the projection of the said second portion on the said housing;wherein said antenna is an unbalanced antenna selected from the group consisting essentially of;
monopole, IFA, patch, PIFA, and slot; and
with said ground plane being coupled either through direct contact or electromagnetic coupling to the said metallic housing at RF frequencies;and wherein said wireless implantable medical is used as part of a system to provide remote monitoring of the medical condition of a human being, in which said wireless implantable medical device implements the functionality of cardiac rhythm management, and communicates with at least one external unit via a radiofrequency link operating at least at one of the ISM frequency bands.
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Specification