Ionizing radiation-protected active implantable medical device
First Claim
1. An ionizing radiation-protected active implantable medical device (AIMD), comprising:
- a) an AIMD housing;
b) an electronics package including a microprocessor disposed within the AIMD housing, wherein the electronics package has a first external surface area and a remainder external surface area, which first and remainder external surface areas together add up to a total external surface area of the electronics package;
c) a battery disposed within the AIMD housing, the battery being adapted to provide electrical power to the electronics package including the microprocessor, wherein the battery directly faces the first external surface area of the electronics package to thereby shield the first external surface area from ionizing radiation; and
d) a gold shield disposed within the AIMD housing, wherein the gold shield is positioned between the AIMD housing and the remainder external surface area of the electronics package, but not between the battery and the AIMD housing to thereby provide an attenuation of ionizing radiation of at least 0.5 HVL at the remainder external surface area of the electronics package so that the battery together with the gold shield shields the total external surface area of the electronics package.
4 Assignments
0 Petitions
Accused Products
Abstract
A radiation protected active implantable medical device includes an ionizing radiation shield disposed over at least one major surface of an electronics package, a microprocessor, or both contained within an AIMD housing. The ionizing radiation shield is made from a high atomic number, high atomic weight, high density material such as led, gold, platinum, iridium, tungsten or tantalum and has an atomic weight of at least 180 and a density of at least 11 grams per cubic centimeter. The ionizing radiation shield has a thickness of at least 0.25 millimeters and is preferably no thicker than 1.05 millimeters and has an overall attenuation of ionizing radiation of at least 0.5 HVL.
12 Citations
46 Claims
-
1. An ionizing radiation-protected active implantable medical device (AIMD), comprising:
-
a) an AIMD housing; b) an electronics package including a microprocessor disposed within the AIMD housing, wherein the electronics package has a first external surface area and a remainder external surface area, which first and remainder external surface areas together add up to a total external surface area of the electronics package; c) a battery disposed within the AIMD housing, the battery being adapted to provide electrical power to the electronics package including the microprocessor, wherein the battery directly faces the first external surface area of the electronics package to thereby shield the first external surface area from ionizing radiation; and d) a gold shield disposed within the AIMD housing, wherein the gold shield is positioned between the AIMD housing and the remainder external surface area of the electronics package, but not between the battery and the AIMD housing to thereby provide an attenuation of ionizing radiation of at least 0.5 HVL at the remainder external surface area of the electronics package so that the battery together with the gold shield shields the total external surface area of the electronics package. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
-
18. An ionizing radiation-protected active implantable medical device (AIMD), comprising:
-
a) an AIMD housing; b) an electronics package within the AIMD housing, wherein the electronics package has a first external surface area and a remainder external surface area, which first and remainder external surface areas add up to a total external surface area of the electronics package; c) a battery disposed within the AIMD housing, the battery being adapted to provide electrical power to the electronics package including the microprocessor, wherein the battery directly faces the first external surface area of the electronics package to thereby shield the first external surface area from ionizing radiation; and d) an ionizing radiation shield disposed within the AIMD housing and being of a metal selected from the group consisting of gold, platinum, iridium, tungsten and tantalum, wherein the ionizing radiation shield is disposed between the AIMD housing and the remainder external, surface area of the electronics package, but not between the battery and the AIMD housing to thereby provide an attenuation of ionizing radiation of at least 0.5 HVL at the remainder external surface area of the electronics package so that the battery together with the ionizing radiation shield shields the total external surface area of electronics package. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
-
-
34. An ionizing radiation-protected active implantable medical device (AIMD), comprising:
-
a) an AIMD housing; b) an electronics package within the AIMD housing, wherein the electronics package has a first external surface area and a remainder external surface area, which first and remainder external surface areas add up to a total external surface area of the electronics package; c) a battery disposed within the AIMD housing, the battery being adapted to provide electrical power to the electronics package including the microprocessor, wherein the battery directly faces the first external surface area of the electronics package to thereby shield the first external surface area from ionizing radiation; and d) a gold shield having a thickness of at least 0.25 millimeters disposed within the AIMD housing, wherein the gold shield is positioned between the AIMD housing and the remainder external surface area of the electronics package, but not between the battery and the AIMD housing to thereby provide a shielded portion at the remainder external surface area of the electronics package so that the battery together with the gold shield shields the total external surface area of the electronics package. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
-
Specification