Ultraviolet laser sterilization system

• US 9,061,083 B2
• Filed: 01/07/2014
• Issued: 06/23/2015
• Est. Priority Date: 08/15/2013
• Status: Active Grant

• Current Assignee: National Cheng KUNG University (Government of The Republic of China)
• Original Assignee: National Cheng KUNG University (Government of The Republic of China)
• Inventors: Huang, Chen-Han, Chui, Hsiang-Chen, Juang, Sean Sung-Yen, Lin, Hsing-Ying, Liao, Hua-Hsien
• Primary Examiner(s): Vanore, David A
• Application Number:
  US14/149,214
• Publication Number:
  US 20150048260A1
• Time in Patent Office: 532 Days
• Field of Search: 250/454.11, 250/455.11, 250/492.1, 422/1, 422/22, 422/24, 422/121, 422/123, 422/182, 422/40, 422/186.3, 422/2, 422/38, 422/400, 422/403, 422/547
• US Class Current: 1/1
• CPC Class Codes: A61L 2/10 Ultraviolet radiation
• CPC Class Codes: A61L 2202/11 Apparatus for generating biocidal substances, e.g. vaporisers, UV lamps
• CPC Class Codes: A61L 2202/14 Means for controlling sterilisation processes, data processing, presentation and storage means, e.g. sensors, controllers, programs
• CPC Class Codes: A61L 2202/24 Medical instruments, e.g. endoscopes, catheters, sharps
• CPC Class Codes: A61L 2209/111 Sensor means, e.g. motion, brightness, scent, contaminant sensors
• CPC Class Codes: A61L 2209/12 Lighting means
• CPC Class Codes: A61L 2209/212 Use of ozone, e.g. generated by UV radiation or electrical discharge
• CPC Class Codes: A61L 9/20 Ultraviolet radiation
• CPC Class Codes: G21K 5/02 having no beam-forming means

Abstract

The invention relates to an ultraviolet laser sterilization system, comprising an ultraviolet laser module and a scanning module. The ultraviolet laser module emits an ultraviolet laser light with a wavelength ranging from 200 nm to 280 nm. The scanning module includes a plurality of reflectors for receiving the ultraviolet laser light, and a controller for controlling rotation of the reflectors to adjust an angle of emergence of the ultraviolet laser light for sterilizing a target.

Claims

1. An ultraviolet laser sterilization system comprises:

an ultraviolet laser module emitting an ultraviolet laser light with a wavelength ranging from 200 nm to 280 nm, the ultraviolet laser light irradiating an area ranging from 1 mm² to 4 mm² and having a light intensity of 5 kilowatts (KW) peak power; and

a scanning module including a plurality of reflectors for receiving the ultraviolet laser light, and a controller for controlling rotation of the reflectors to adjust an angle of emergence of the ultraviolet laser light for sterilizing a target.

2. The ultraviolet laser sterilization system as claimed in claim 1, wherein the wavelength of the ultraviolet laser light is 266 nm.

3. The ultraviolet laser sterilization system as claimed in claim 1, wherein the system is further provided with an ozone detector module electrically connecting to the controller for transmitting a signal of ozone concentration detected in the environment to the controller, so as to allow the controller to adjust the power and the irradiation time of the ultraviolet laser light on a target.