Irradiation device and method for irradiating a radiation absorbing medium, hearing aid device and laser surgery device, in particular for laser ear surgery, with such an irradiation device

US11224758B2 · kind B2 · utility

Assignee

• MEDIZINISCHE HOCHSCHULE HANNOVER · DE

Inventors

• Hannes Maier · Münchenstein, CH
• Waldo Nogueira-Vazquez · Hannover, DE
• Andreas Buechner · Altwarmbüchen, DE
• Thomas Lenarz · Hannover, DE
• Andrej Kral · Hannover, DE

Key dates

• Filing date: Jun 27, 2018
• Grant date: Jan 18, 2022
• Expiry date: Jun 27, 2038

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N2005/0659
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The invention relates to an irradiation device and a corresponding method for irradiating a radiation absorbing medium, as well as a hearing aid device and a laser surgery device comprising such an irradiation device. A radiation source is configured to generate one or more pulses of electromagnetic radiation and to irradiate the medium with the one or more pulses of electromagnetic radiation. A control unit is configured to control the radiation source such that the time course of the power or intensity of at least one pulse of the one or more pulses of electromagnetic radiation exhibits a rising slope and/or a falling slope, wherein the rising slope and/or falling slope has a maximum gradient which is smaller than a predetermined gradient value, whereby a generation of optoacoustic waves in the medium in response to the rising slope or falling slope, respectively, is avoided or significantly reduced.