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Conforming implantable defibrillator
| Details |
Inventors: Meltzer, Mark J.;
Assignee: Ventritex, Inc. (Sunnyvale, CA)
Primary Examiner: Isabella; David
Assistant Examiner: Snow; Bruce E.
Attorney, Agent or Firm: Mitchell; Steven M., Meltzer; Mark J.
An implantable device, such as a defibrillator, has a conforming housing that is adapted to follow to the contours of the patient's body at a device implantation site, while complying with pressures applied to the patient's body and with body flexion. In one form of the invention, the device housing is articulated at one or more hinge locations to provide a segmented housing that conforms to an implantation site through movement about the hinge axis. Another embodiment of the invention provides a flexible housing that surrounds a flex-circuit assembly. |
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DETAILED DESCRIPTION The invention provides an implantable device, such as a defibrillator, having an articulated housing that is adapted to conform to the contours of the patient's body at the device implantation site; and that is also adapted to comply with pressures applied to the patient's body and body flexion, such that having the device is a relatively unobtrusive during low impact exercise.
In one form of the invention, the device housing is articulated at one or more hinge locations to conform to an implantation site through movement about the hinge axis.
Another embodiment of the invention provides a flexible housing that surrounds a flex-circuit assembly.
In particular, a first embodiment of the invention provides a housing for an implantable medical device that includes at least two discrete, cooperating housing segments constructed of a biocompatible material, such as silicone rubber, Teflon.
RTM.
, or polyurethane.
The segments are positioned such that an edge of one segment is proximate to and coaxial with an edge of the other segment, and such that the segments define an integrated, articulated housing structure having a contoured periphery.
The segments are adapted to pivot at at least one hinge axis located between the segments.
Thus, the housing is adapted to conform to the contour of an implantation site and/or to flex in compliance with movement at said implantation site through pivotal movement of the segments, one relative the other, about the hinge axis.
A second embodiment of the invention provides a housing for an implantable medical device in the form of a flexible enclosure that is constructed of a biocompatible material.
The housing is adapted to surround and seal a flex-circuit assembly.
Thus, the housing and the assembly contained therein yield elastically when force is applied thereto, and thereby comply with the contour of a device implantation site and/or flex in compliance with movement at or relative to the implantation site.
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Metal Working 
