Leadless cardiac pacemaker with integral battery and redundant welds
First Claim
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1. An implantable medical device, comprising:
- a battery disposed in a battery housing, the battery housing comprising a battery wall and a first lid, and the battery housing configured to operate as an electrode;
a set of electronics disposed in an electronics housing, the set of electronics being electrically coupled to the battery and configured to control operation of the electrode;
a first set of welds configured to hermetically join the battery wall, the first lid, and the electronics housing so as to hermetically seal the battery from the set of electronics; and
a second set of welds configured to hermetically join the battery wall and electronics housing so as to seal the set of electronics and the battery from an exterior of the implantable medical device, wherein the first set of welds is disposed only on an interior of the implantable medical device and the second set of welds is disposed on the exterior of the implantable medical device.
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Abstract
A leadless cardiac pacemaker that does not require a separate hermetic housing surrounding the battery and electronics compartments is provided. The cardiac pacemaker can include a battery disposed in a battery housing and a set of electronics disposed in an electronics housing. In some embodiments, the battery housing and the electronics housing can comprise an external surface of the pacemaker. The pacemaker can include a first set of welds separating the battery from the set of electronics, and a second set of welds separating the set of electronics and the battery from an exterior of the housing. Various embodiments for achieving dual-redundant welds are also provided.
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Citations
25 Claims
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1. An implantable medical device, comprising:
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a battery disposed in a battery housing, the battery housing comprising a battery wall and a first lid, and the battery housing configured to operate as an electrode; a set of electronics disposed in an electronics housing, the set of electronics being electrically coupled to the battery and configured to control operation of the electrode; a first set of welds configured to hermetically join the battery wall, the first lid, and the electronics housing so as to hermetically seal the battery from the set of electronics; and a second set of welds configured to hermetically join the battery wall and electronics housing so as to seal the set of electronics and the battery from an exterior of the implantable medical device, wherein the first set of welds is disposed only on an interior of the implantable medical device and the second set of welds is disposed on the exterior of the implantable medical device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An implantable medical device, comprising:
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a battery disposed in a battery housing, the battery housing comprising a battery wall and a first lid, the battery wall comprising an external surface of the implantable medical device; a set of electronics disposed in an electronics housing and electrically coupled to the battery, the set of electronics configured to control operation of the implantable medical device; a first set of welds configured to join the battery wall to the first lid to hermetically seal the battery from the set of electronics; and a second set of welds configured to join the battery wall to the electronics housing to hermetically seal the set of electronics and the battery from an exterior of the implantable medical device, wherein the first set of welds is disposed only on an interior of the implantable medical device and the second set of welds is disposed on the exterior of the implantable medical device. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A leadless cardiac pacemaker, comprising:
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a battery disposed in a battery housing, the battery housing comprising a battery wall and a lid, the battery housing configured to operate as an electrode; a set of electronics disposed in an electronics housing, the set of electronics being electrically coupled to the battery and configured to control operation of the electrode, wherein; the battery wall is welded to the lid and the electronics housing with a first set of welds, wherein the first set of welds is disposed only on an interior of the leadless cardiac pacemaker, the electronics housing is welded to the battery wall with a second set of welds disposed on the exterior of the leadless cardiac pacemaker; and a fixation device configured to attach the leadless cardiac pacemaker to human tissue. - View Dependent Claims (23, 24, 25)
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Specification