Extracorporeal test device for an implantable medical device
First Claim
1. A combination of an extracorporeal apparatus and an implantable electromedical device, wherein:
- the implantable electromedical device includes;
an intracorporeal signal receiver, a processing channel for receiving and processing a measuring signal received by the intracorporeal signal receiver and for influencing the function of the implantable electromedical device, the processing channel including at least one of first and second signal-influencing transmission members, the implantable electromedical device further including a first telemetry unit for transmitting a telemetry signal derived from the measuring signal to the extracorporeal apparatus, the first telemetry unit having an input connected to at least one of an output of the first transmission member and an input of the second transmission member;
the extracorporeal apparatus includes;
a second telemetry unit for receiving the telemetry signal emitted by the implantable electromedical device, a third transmission member disposed downstream of the second telemetry unit for at least one of;
(a) compensating for signal influences contained in the telemetry signal effected by the first transmission member for making available a further measuring signal outside of the body that is essentially uninfluenced by the first transmission member and (b) simulating a signal influence of the measuring signal caused by the second transmission member for extracorporeally simulating an output signal of the second transmission member for external modelling of the behavior of the implantable device as a function of the measuring signal; and
the third transmission member has a transmission behavior which is inverse with respect to a transmission behavior of the first transmission member to compensate for the signal influence caused by the first transmission member.
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Accused Products
Abstract
An extracorporeal apparatus is provided for use with an implantable medical device and has a telemetry unit for receiving a telemetry signal transmitted from the implantable device. The extracorporeal apparatus further includes a transmission member disposed downstream of the telemetry receiver for compensating for the signal influence contained in the telemetry signal and effected by a first transmission member in the implantable device for the purpose of interference-free reproduction of a measuring signal received by way of the implantable device in the body, and/or for simulating the signal influence effected by a second transmission member in the implantable device for the purpose of external modelling of the dependency of the device behavior on the measuring signal.
66 Citations
14 Claims
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1. A combination of an extracorporeal apparatus and an implantable electromedical device, wherein:
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the implantable electromedical device includes; an intracorporeal signal receiver, a processing channel for receiving and processing a measuring signal received by the intracorporeal signal receiver and for influencing the function of the implantable electromedical device, the processing channel including at least one of first and second signal-influencing transmission members, the implantable electromedical device further including a first telemetry unit for transmitting a telemetry signal derived from the measuring signal to the extracorporeal apparatus, the first telemetry unit having an input connected to at least one of an output of the first transmission member and an input of the second transmission member; the extracorporeal apparatus includes; a second telemetry unit for receiving the telemetry signal emitted by the implantable electromedical device, a third transmission member disposed downstream of the second telemetry unit for at least one of;
(a) compensating for signal influences contained in the telemetry signal effected by the first transmission member for making available a further measuring signal outside of the body that is essentially uninfluenced by the first transmission member and (b) simulating a signal influence of the measuring signal caused by the second transmission member for extracorporeally simulating an output signal of the second transmission member for external modelling of the behavior of the implantable device as a function of the measuring signal; andthe third transmission member has a transmission behavior which is inverse with respect to a transmission behavior of the first transmission member to compensate for the signal influence caused by the first transmission member. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A combination of an extracorporeal apparatus and an implantable electromedical device, wherein:
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the implantable electromedical device includes; an intracorporeal signal receiver, a processing channel for receiving and processing a measuring signal received by the intracorporeal signal receiver and for influencing the function of the implantable electromedical device, the processing channel including at least one of first and second signal-influencing transmission members, the implantable electromedical device further including a first telemetry unit for transmitting a telemetry signal derived from the measuring signal to the extracorporeal apparatus, the first telemetry unit having an input connected to at least one of an output of the first transmission member and an input of the second transmission member; the extracorporeal apparatus includes; a second telemetry unit for receiving the telemetry signal emitted by the implantable electromedical device, a third transmission member disposed downstream of the second telemetry unit for at least one of;
(a) compensating for signal influences contained in the telemetry signal effected by the first transmission member for making available a further measuring signal outside of the body that is essentially uninfluenced by the first transmission member and (b) simulating a signal influence of the measuring signal caused by the second transmission member for extracorporeally simulating an output signal of the second transmission member for external modelling of the behavior of the implantable device as a function of the measuring signal; andthe second transmission member includes a plurality of filter elements which have settable cutoff frequencies and the third transmission member comprises a digital filter having a filtering characteristic including filter coefficients that can be set for changing the filter coefficients. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification