Device for analysis of recorded electrocardiogram
US4550502A · kind A · utility
Inventor
Key dates
| Filing date | Apr 15, 1983 |
| Grant date | Nov 5, 1985 |
| Priority date | — |
| Expiry date | Apr 15, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/322
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A gauge which facilitates the analysis of a recorded electrocardiogram which comprises a flat sheet of transparent material having a plurality or fan of straight diverging lines disposed on said sheet; a plurality of straight, parallel lines disposed on the sheet extending in a direction transverse to the diverging lines and perpendicular to a line extending medially between the outermost of said diverging lines, said diverging lines intersecting said parallel lines as to define equal increments along any parallel line; the transverse lines being spatially arranged such that they intersect with the diverging lines to form a grid therewith wherein the distance between adjacent points of intersection with the diverging lines on any of the parallel lines bear a relation to the heart beat rates or heart rate cycle interval of a periodic wave form recorded on an electrographic chart or strip; indicia means disposed on said sheet for designating the transverse parallel lines as graduations of a scale comprising intervals which correspond to said heart rate cycle intervals or heart beat rates; and the gauge being physically sized so that said diverging lines are laterally spaced apart to …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.