| 摘要 |
Devices, systems, and methods are disclosed for relaying information from a cardiac pacemaker to an external device. Logic on the pacemaker modulates a heartbeat clock of the pacemaker to encode information onto a blood pressure sequence by adding or subtracting a small subinterval to or from a pulse repetition interval of the pacemaker. A muscle stimulator beats the heart according to the modulated sequence. A monitoring device external to the body monitors the blood pressure to retrieve the encoded information, or message. The encoded information is then decoded to determine the information in the message. This information may concern the pacemaker as well as other devices within the body that communicate with the pacemaker such as blood monitors, etc. Since the message is conveyed via simple modulation of the heart beat intervals, no separate transmitter is required in the pacemaker which would otherwise increase cost and decrease battery life. |
| 主权项 |
1. A system, comprising:
a pulse monitor; a pacemaker; a processor coupled to the pulse monitor and the pacemaker; and a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, comprising:
initiating, by the pacemaker, a timer to stimulate a heart muscle according to an interval to cause a first adjustment of a heartbeat associated with the heart muscle,modifying, by the pacemaker, the interval by adding or subtracting a subinterval to generate a modified interval, the subinterval representative of a binary digit,stimulating, by the pacemaker, the heart muscle according to the modified interval to cause a second adjustment of the heartbeat; andreceiving, from the pulse monitor, the binary digit based on the second adjustment to the heartbeat. |
