| CPC A61B 5/361 (2021.01) |

| AS A RESULT OF REEXAMINATION, IT HAS BEEN DETERMINED THAT: |
| The patentability of claims 1-10 and 12-21 is confirmed. |
| Claims 11 and 22 were not reexamined. |
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1. A method of determining possible atrial fibrillation, said method comprising the steps of:
(a) detecting irregular pulse rhythms from a succession of time intervals each corresponding to a respective interval of time between successive pulse beats of a sequence of the pulse beats;
(b) analyzing the detected irregular pulse rhythms to make a determination of possible atrial fibrillation; and
(c) indicating the possible atrial fibrillation from the determination.
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