Pulse width cardiac pacing apparatus
US6731979B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 30, 2001 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | Jul 1, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/368
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cardiac assist system containing a device for delivering a first pacing pulse from said system to a heart, for ceasing the delivery of said first pacing pulse to said heart, for sensing whether the heart is beating, and for delivering a second pacing pulse from said system to the heart. Each of the first pacing pulse and the second pacing pulse are delivered to the heart within a period of less than about 100 milliseconds, and has a voltage of from about 2 to about 5 volts direct current. The time between the delivery of the first pacing pulse and the second pacing pulse is at least about 1 microsecond. The first pacing pulse and the second pacing pulse are delivered to the heart at a frequency of from about 2 kiloherz to about 5 megahertz; and they each have a duration of from about 0.1 microseconds to about 500 milliseconds. The cardiac assist system also contains a device for varying the voltage and/or the frequency of each of the pacing pulses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.