Category Archives: Medical Devices

home office

The recent wave of pulling telecommuters back into an office to help save struggling companies has made me question – Is the location of a company’s employees a key component of success? As the HR manager of Research Integrations–a small business that began allowing employees to work from home offices  in order to provide flexibility and retain key employees and then eventually moved all employees to home offices–this seems like an important question to answer. At first the answer to this question seems complicated, but in the end, it may be simple. While the modalities of communication have changed with technology and telecommuting, the core messages and objectives of effective communication have not changed. Successful companies use communication effectively to accomplish these key objectives: Provide a shared vision Establish accountability Establish and maintain working relationships Maintain awareness of current challenges and successes Evaluate employee engagement Reward accomplishments For telecommuting these … Continue reading

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Last week (Oct 2-3), I attended a meeting addressing the challenges and issues related to the interoperability of medical devices hosted jointly by the Association for the Advancement of Medical Instrumentation (AAMI) and the Food and Drug Administration (FDA) Center for Devices and Radiological Health (CDRH).  The purpose of the meeting was to discuss challenges, share best practices, and develop ideas for moving forward to address the issues raised. Human factors and usability issues were raised throughout the meeting, as you would expect when discussing the design and development of a complex system made up of many other systems, and all the systems have many and varied users.  There are several factors that increase system design challenges, and they all arise when addressing medical device interoperability as the design of a large system made up of all inter-related and interfacing systems.  Examples include: defining and documenting the functions and attributes of … Continue reading

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Collection of small display devices

When creating a display on a small device, how large or small should your characters be?  The size of alphanumeric characters affects the readability of information on the display. The size of an alphanumeric character is determined by three features: stroke width: distance across a stroke line used to form an individual character character width: distance across an individual character from one side to another character height: full vertical distance between the top and bottom elements of a character Stroke width Stroke width should be equal for all characters of equal height on a display.  Stroke width-to-height ratio is the ratio of the thickness of the stroke used to form an individual character and the measured height of the character.  It is recommended that stroke width-to-height ratio be 1:6 to 1:8 for black text on a white background under adequate lighting and 1:8 to 1:10 for white text on a … Continue reading

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