Sample interview questions: What are the main considerations when designing a laser system for medical applications?
Sample answer:
Main Considerations for Medical Laser System Design:
Laser Wavelength and Tissue Penetration:
* Select an appropriate wavelength that can penetrate the target tissue effectively without causing excessive damage.
* Consider scattering, absorption, and reflection properties of the tissue at the chosen wavelength.
Power and Energy Density:
* Determine the optimal power and energy density required for the desired therapeutic effect, such as coagulation, ablation, or stimulation.
* Ensure precise control of laser power and energy delivery to minimize tissue damage and maximize efficacy.
Beam Delivery and Targeting:
* Design a delivery system that can accurately direct the laser beam to the target tissue.
* Use optics to shape the beam profile and focus the energy into a specific area.
* Utilize image guidance or other techniques for precise targeting and real-time monitoring.
Tissue Interaction and Safety:
* Understand the potential thermal, mechanical, and chemical effects of laser irradiation on biological tissues.
* Implement safety measures to prevent unwanted tissue damage, including beam shielding and protective eyewear.
Ergonomics and Accessibility:
* Design a system that is … Read full answer