Patent ID: 11896301
Assignee: KONINKLIJKE PHILIPS N.V.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 13:
14. The handheld device as claimed in claim 1,
wherein the at least one energy source comprises a first energy source and a second energy source that are separately controllable by the control unit, and wherein the first energy source and the second energy source are arranged in the handheld device in parallel with respect to the intended motion direction;
wherein the first sensing position is in front of the first energy source relative to the intended motion direction, and the second sensing position is behind the first energy source relative to the intended motion direction;
wherein the handheld device further comprises:
a third skin property sensor for measuring the skin property and for outputting a third measurement signal representing measurements of the skin property at a third sensing position as the handheld device is moved across the skin, wherein the third sensing position is in front of the second energy source relative to the intended motion direction;
a fourth skin property sensor for measuring the skin property and for outputting a fourth measurement signal representing measurements of the skin property at a fourth sensing position as the handheld device is moved across the skin, wherein the fourth sensing position is behind the second energy source relative to the intended motion direction wherein each of the third skin property sensor and the fourth skin property sensor is a temperature sensor, an optical sensor, an acoustic sensor or an electrical sensor; and
the control unit is configured to analyze the first measurement signal and the second measurement signal to determine whether an energy pulse can be generated by the first energy source, and to analyze the third measurement signal and the fourth measurement signal to determine whether an energy pulse can be generated by the second energy source.