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Natural Science Forum / Physics / Acoustics / September 2005Vibration Environment Criteria: Surgical (Operating Room, "OR) equipment instllation vibration environment criteria?
I am looking for the vibration environment criteria for surgical equipment for a new hospital. The building will be deigned within a year, and I need to know what maximum allowable floor vibrations from other building mechanical equipment we should allow. The closest previous criteria I can think of are those for MRI installations. I have no idea what such OR equipment criteria limits should be... are they tighter or are they more relaxed as compared to those limits for MRI. Comments welcome. Angelo Campanella > I am looking for the vibration environment criteria for > surgical [quoted text clipped - 10 lines] > > Angelo Campanella Perhaps I am missing something, but wouldn't that vibration level criteria/requirement be specified by the manufacturer of the surgical equipment? > Perhaps I am missing something, but wouldn't that vibration level > criteria/requirement be specified by the manufacturer of the surgical > equipment? From personal experience, I found that a lot of manufacturers don't have that info. They basically wait for one of their customers to have a problem, measure the vibration level, then tell other customers "don't exceed that level." > I am looking for the vibration environment criteria for surgical > equipment for a new hospital. The building will be deigned within a > year, and I need to know what maximum allowable floor vibrations from > other building mechanical equipment we should allow. Could you use VC curves as a guide? > I am looking for the vibration environment criteria for surgical > equipment for a new hospital. The building will be deigned within a > year, and I need to know what maximum allowable floor vibrations from > other building mechanical equipment we should allow. > The closest previous criteria I can think of are those for MRI > installations. I have no idea what such OR equipment criteria limits > should be... are they tighter or are they more relaxed as compared to > those limits for MRI. > Comments welcome. By simple logic you need to consider two cases: surgery and microsurgery as well as the parameter staff distraction. Generally my guess is that staff distraction will be a lower requirement than what most machinery in the context needs and also that machinery needs are easier to meet than staff needs. As an example it is quite easy to put say a counting weight for small objects on a 1000 pound insulating base and thereby obtain sufficient immunity from the vibrations from nearby forklift work in a storehouse, but a lot less simple to add similar vibration protection to staff members .... > Angelo Campanella Kind regards Peter Larsen  Signature******************************************* * My site is at: http://www.muyiovatki.dk * ******************************************* Angelo, I'm looking at pages 47.39 and 47.40 of the 2003 ASHRAE applications handbook. It summarizes ANSI S3.29 and ISO 2631-2 (I don't have those on hand to compare...) They have a "human comfort" criteria curve for "Hospital Operating Rooms and Critical Work Areas." That curve specifies a max allowable RMS velocity of 0.004 in/s from 8 to 80 Hz. It looks like the curve increases somewhat linearly from 8Hz to a max allowable level of around 0.02 in/s at 1 Hz. They have several other curves for microscopes of various magnifications, different types of manufacturing equipment, and surgical procedures of increasing delicacy. Also, less stringent curves are shown for residences, offices, workshops, etc. Regards, Dave > I am looking for the vibration environment criteria for surgical >equipment for a new hospital. The building will be deigned within a [quoted text clipped - 9 lines] > > Angelo Campanella |
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