Surgical instrument restraint in weightlessness.
BACKGROUND
Performing a surgical procedure during spaceflight will become more likely in the future as the duration of missions becomes longer. Only minimal surgical capability was available on previous missions since the definitive medical care time was short and the likelihood of a surgical event too low to justify carrying surgical hardware onboard. Early demonstrations of surgical procedures in the microgravity environment of parabolic flight indicated the need for careful logistical planning and restraint of surgical hardware. Human ergonomics also has more effect in microgravity than in the conventional 1-G environment.


METHODS
Three methods of surgical instrument restraint--a Minor Surgical Kit (MSK), a Surgical Restraint Scrub Suit (SRSS), and a Surgical Tray (ST)--were evaluated in parabolic flight surgical procedures.


RESULTS
The MSK was easily stored, easily deployed, and demonstrated the best ability to facilitate a surgical procedure in microgravity.


CONCLUSIONS
Important factors in a surgical restraint system for microgravity include excellent organization of supplies, ability to maintain sterility, accessibility while providing secure restraint, ability to dispose of sharp items and biological trash, and ergonomic efficiency.
Campbell
M R
MR
NASA Medical Operations, Johnson Space Center and Wyle Laboratories, Houston, TX, USA. mcamp@1starnet.com
Dawson
D L
DL
Melton
S
S
Hooker
D
D
Cantu
H
H
D000337:Aerospace Medicine; D000818:Animals; D006804:Ergonomics; D012149:Restraint, Physical; D013525:Surgical Instruments; D013552:Swine; D014893:Weightlessness