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An infant surgical table for laser photocoagulation: ergonomic improvement analysis
K A Ryland1, C A Nelson, T W Hejkal
1Stryker Endoscopy, 5900 Optical Court, San Jose, CA 95138, USA.
Journal of Medical Engineering & Technology
|December 19, 2009
Summary
A new infant surgical table reduces surgeon injury risk during retinopathy of prematurity treatment. The redesigned table allows seated surgery, significantly lowering musculoskeletal strain and improving surgeon well-being.
Area of Science:
- Ophthalmology
- Ergonomics
- Medical Device Design
Background:
- Current laser photocoagulation for retinopathy of prematurity necessitates awkward standing postures.
- These postures pose a significant risk of occupational injury to surgeons.
Purpose of the Study:
- To evaluate the ergonomic benefits of a newly designed infant surgical table for retinopathy of prematurity treatment.
- To compare the risks associated with standard versus modified surgical procedures.
Main Methods:
- Ergonomic comparison using specialized checklists and Nordic Musculoskeletal Questionnaires.
- Analysis of surgical procedures via videotaping with the Ovako Working Posture Analysing System.
- Quantification of risk factors for cumulative trauma disorders.
Main Results:
- Standard laser photocoagulation procedures present a high risk for cumulative trauma disorders.
- The new infant surgical table substantially reduced identified risk factors.
- Seated surgical postures enabled by the new table relieved muscular stress on the back, shoulders, and legs.
Conclusions:
- Engineering design of medical devices can effectively reduce occupational risks for surgeons.
- The new infant surgical table improves surgeon ergonomics and safety.
- Combining multiple assessment methods provides a comprehensive evaluation of medical technology's ergonomic impact.
