LASER SURGICAL APPARATUS

• US 20100137851A1
• Filed: 01/21/2009
• Published: 06/03/2010
• Est. Priority Date: 12/01/2008
• Status: Abandoned Application

• Current Assignee: Industrial Technology Research Institute
• Original Assignee: Industrial Technology Research Institute
• Inventors: Cao, Hong-Xi, Lin, Shih-Ting, Su, Hsin-Chia, Wang, Li-Ting, Hu, Chieh
• Application Number:
  US12/356,540
• Publication Number:
  US 20100137851A1
• Time in Patent Office: Days
• US Class Current: 606/10
• CPC Class Codes: A61B 18/20 using laser
• CPC Class Codes: A61B 2018/00029 open
• CPC Class Codes: A61C 1/0046 Dental lasers surgical lasers A61B18/20; working by laser beam in general B23K26/00; lasers per se H01S3/00

Abstract

A laser surgical apparatus is provided. The laser surgical apparatus includes a laser generator, a laser delivery module for delivering a laser beam to biological tissues, a fluid source, a fluid delivery module for delivering a fluid to the biological tissues, and a control module for controlling all the above units.

Claims

1. A laser surgical apparatus, comprising:

a laser generator, comprising a mid-infrared laser source for generating a laser beam;

a laser delivery module, connected to the laser generator, wherein the laser beam is delivered to a biological tissue through the laser delivery module;

a high-pressure fluid source, for providing a low-temperature CO₂ fluid;

a fluid delivery module, connected to the high-pressure fluid source, for delivering the low-temperature CO₂ fluid directly to the biological tissue; and

a control module, electrically connected to and controlling the laser generator, the laser delivery module, the high-pressure fluid source, and the fluid delivery module.

2. The laser surgical apparatus according to claim 1, wherein the laser delivery module further comprises a waveguide or an optical fiber for guiding the laser beam.

3. The laser surgical apparatus according to claim 1, wherein the laser delivery module further comprises one or more lenses for helping focus the laser beam.

4. The laser surgical apparatus according to claim 1, wherein the fluid delivery module at least comprises a fluid transmission pipe and a fluid nozzle connected to the fluid transmission pipe, and the low-temperature CO₂ fluid is sprayed out from the fluid nozzle.

5. The laser surgical apparatus according to claim 1, wherein the control module controls to output the low-temperature CO₂ fluid continuously.

6. The laser surgical apparatus according to claim 1, wherein the control module controls to output and deliver the low-temperature CO₂ fluid and the laser beam to the biological tissue at the same time.

7. The laser surgical apparatus according to claim 1, wherein the control module controls to spray out the low-temperature CO₂ fluid first, and then to deliver the laser beam to the biological tissue.

8. The laser surgical apparatus according to claim 1, wherein the control module controls to output the generated laser beam in a pulse mode.

9. The laser surgical apparatus according to claim 8, wherein the control module controls that an intensity of each laser pulse output signal of the generated laser beam is from 1 mJ to 100 mJ.

10. The laser surgical apparatus according to claim 9, wherein an interval of each laser pulse output signal is from 100 μ

s to 500 ms.

11. The laser surgical apparatus according to claim 9, wherein a waveform signal width of each laser pulse output signal is from 10 ps to 500 μ

s.

12. The laser surgical apparatus according to claim 1, wherein the control module controls to output the generated laser beam in a non-pulse continuous mode.

13. The laser surgical apparatus according to claim 1, wherein a wavelength of the mid-infrared laser source is from 2.5 μ

m to 2.8 μ

m.

14. The laser surgical apparatus according to claim 13, wherein a wavelength of the mid-infrared laser source is from 2.65 μ

m to 2.75 μ

m.

15. The laser surgical apparatus according to claim 1, wherein the control module controls to deliver the CO₂ and the laser beam to the same position on the biological tissue.