Dual mode programmable pacer
First Claim
1. A pacer adapted to be programmed by either a fast type program signal having a relatively short program length or a slow type program signal having a relatively long program length, said pacer having stimulus means for generating stimulus signals for delivery to a patient'"'"'s heart and having one or more programmable operating parameters, said pacer having receiving means for receiving said fast and slow type program signals from external to said pacer and control means for controlling said one or more parameters with control signals derived from said received program signals, said pacer being characterized by comprising means for processing said received signals to derive said control signals therefrom when said received signals conform to a predetermined program arrangement, said processing means having a common logic circuit utilized in said processing of received signals of both fast and slow type.
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0 Petitions
Accused Products
Abstract
There is provided a programmable pacer which is adapted to be programmed from an external source in either a slow program mode, wherein the external source is a simple magnet, or a fast program mode wherein the external programming signals are generated automatically and comprise a constant magnetic signal along with a modulated relatively high frequency magnetic signal. The pacer has means for receiving both fast and slow type program signals and means for processing the received program signals, whether of the fast or slow type, to derive control signals therefrom when the program signals conform to a predetermined program arrangement.
15 Citations
11 Claims
- 1. A pacer adapted to be programmed by either a fast type program signal having a relatively short program length or a slow type program signal having a relatively long program length, said pacer having stimulus means for generating stimulus signals for delivery to a patient'"'"'s heart and having one or more programmable operating parameters, said pacer having receiving means for receiving said fast and slow type program signals from external to said pacer and control means for controlling said one or more parameters with control signals derived from said received program signals, said pacer being characterized by comprising means for processing said received signals to derive said control signals therefrom when said received signals conform to a predetermined program arrangement, said processing means having a common logic circuit utilized in said processing of received signals of both fast and slow type.
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10. A pacer adapted to be programmed by any one of a plurality of different predetermined program signals of respective different rates, one of said signal being a slow magnetic signal such as can be generated manually with a simple magnet applied in the vicinity of said pacer, said pacer having stimulus means for normally generating stimulus signals at a predetermined rate for delivery to a patient'"'"'s heart, and stimulus means having at least one programmable operating parameter, said pacer having receiving means for receiving said plurality of program signals from external to said pacer and control means for controlling said at least one parameter with control signals derived from said received program signals, said pacer comprising processing means for processing any one of said received program signals at a time to derive said control signals therefrom when one of said received signals conforms to a predetermined program arrangement, said processing means having timing signal means for providing reference timing signals and logic means for determining when one of said received signals has a predetermined time relationship with said reference timing signals such as to constitute said predetermined program arrangement.
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11. A pacer adapted to be programmed by either a fast type program signal having a relatively short program length or a slow type program signal having a relatively long program length, said pacer having stimulus means for generating stimulus signals for delivery to a patient'"'"'s heart and having one or more programmable operating parameters, said pacer having receiving means for receiving said fast and slow type program signals from external to said pacer and control means for controlling said one or more parameters with control signals derived from said received program signals, said pacer comprising:
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a. reference timing means for providing reference timing signals corresponding to both said fast and slow program signals; and b. means for determining the time relationship of said received signals with said timing signals and for deriving said control signals equally from said fast and slow program signals whenever a predetermined time relationship is determined.
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Specification