Method and apparatus for programming a rate responsive implantable cardiac stimulation device using user specified rate response functions
First Claim
1. In an external programmer for use in programming an implantable cardiac stimulation device having at least one sensor for use in rate-responsive pacing, a programming method comprising:
- inputting a set of individual values representative of points defining a desired rate-responsive pacing function;
fitting a curvilinear function to the input values to generate a rate-responsive pacing function from the input values; and
transmitting the rate-responsive pacing function to the implantable cardiac stimulation device for use therein in determining a rate-responsive pacing rate.
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Accused Products
Abstract
Techniques are provided for programming a rate-responsive pacemaker or other implantable cardiac stimulation device capable of rate-responsive pacing. In one embodiment, an external programmer is configured to allow a physician to program the pacemaker with a smooth curvilinear rate-responsive pacing function having whatever shape the physician deems optimal for the patient, rather than being limited to generating a linear or bi-linear rate-responsive pacing functions as with many conventional techniques. The rate-responsive pacing function may specify, for example, pacing rates as a function of orthostatic sensor values, activity sensor values, minute ventilation sensor values, vasovagal syncope sensor values or paced depolarization integral sensor values. If several sensors are provided in the pacemaker, smooth rate-responsive pacing functions may be separately generated for use with each sensor.
27 Citations
18 Claims
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1. In an external programmer for use in programming an implantable cardiac stimulation device having at least one sensor for use in rate-responsive pacing, a programming method comprising:
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inputting a set of individual values representative of points defining a desired rate-responsive pacing function; fitting a curvilinear function to the input values to generate a rate-responsive pacing function from the input values; and transmitting the rate-responsive pacing function to the implantable cardiac stimulation device for use therein in determining a rate-responsive pacing rate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of programming a cardiac stimulation device having at least one sensor for use in rate-responsive pacing, the method comprising:
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inputting a set of individual values representative of points defining a desired rate-responsive pacing function using an external programmer, fitting a curvilinear function to the input values to generate a rate-responsive pacing function, and transmitting the rate-responsive pacing function to the cardiac stimulation device; and receiving the rate-responsive pacing function within the cardiac stimulation device and converting sensor output values to pacing rates using the rate responsive pacing function.
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15. In an external programmer for use in programming an implantable cardiac stimulation device having at least one sensor for use in rate-responsive pacing, a system comprising:
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a rate-responsive pacing programming unit operative to input a set of individual values representative of points defining a desired rate-responsive pacing function and to fit a curvilinear function to the input values to generate a rate-responsive pacing function; and a telemetry unit adapted to transmit the rate-responsive pacing function to the cardiac stimulation device for use therein in determining a rate-responsive pacing rate.
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16. A system comprising:
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an external programmer having a rate-responsive pacing programming unit operative to input a set of individual values representative of points defining a desired rate-responsive pacing function and to fit a curvilinear function to the input values to generate a rate-responsive pacing function, and a telemetry unit operative to transmit the rate-responsive pacing function to the cardiac stimulation device; and an implantable cardiac stimulation device having a rate-responsive sensor, a telemetry unit operative to receive the rate-responsive pacing function from the external programmer, and a rate-responsive pacing controller operative to convert output values from the rate-responsive sensor to pacing rates using the rate-responsive pacing function.
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17. In an external programmer for use in programming an implantable cardiac stimulation device having at least one sensor for use in rate-responsive pacing, a method comprising:
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inputting a set of individual values representative of points defining a desired rate-responsive pacing function; fitting a curvilinear function to the input values to generate a rate responsive pacing function; converting the rate-responsive pacing function to a look-up table of pacing rates as a function of sensor values; and transmitting the look-up table to the cardiac stimulation device for use therein in determining a rate-responsive pacing rate.
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18. A system comprising:
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an implantable cardiac stimulation device; an external programmer to program the implantable cardiac stimulation device; means, within the external programmer, for inputting a set of individual values representative of points defining a desired rate-responsive pacing function; means, within the external programmer, for fitting a curvilinear function to the input values to generate a rate-responsive pacing function; means, within the external programmer, for converting the rate-responsive pacing function to a look-up table of pacing rates as a function of sensor values; means, within the external programmer, for transmitting the look-up table to the implantable cardiac stimulation device for use therein in determining a rate-responsive pacing rate; means, within the implantable cardiac stimulation device, for receiving the look-up table; and means, within the implantable cardiac stimulation device, for converting sensor output values to pacing rates using the look-up table.
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Specification