Medical Device CartAdvisor: Professor BlockClient: Viasys HealthcarePeg Rickard and Art KealyJoe Cabelka: Team LeaderJennifer Wager: BSACEmily Andrews: CommunicatorTony Schuler: BWIG12/13/062Table of ContentsAbstract---------------------------------------------------------------------------------------------3BackgroundProject Motivation-----------------------------------------------------------------------3Current Device----------------------------------------------------------------------------4Electroencephalography----------------------------------------------------------------6Ergonomics--------------------------------------------------------------------------------8Competition-------------------------------------------------------------------------------9Design Constraints-------------------------------------------------------------------------------11Materials-------------------------------------------------------------------------------------------12Alternate DesignsDesign I------------------------------------------------------------------------------------13Design II-----------------------------------------------------------------------------------15Design III----------------------------------------------------------------------------------17User Survey Results------------------------------------------------------------------------------19Final Design----------------------------------------------------------------------------------------22Monitor------------------------------------------------------------------------------------23Keyboard Tray---------------------------------------------------------------------------24System Components---------------------------------------------------------------------25Footprint-----------------------------------------------------------------------------------26Push-bar------------------------------------------------------------------------------------27Cable Management----------------------------------------------------------------------29Additional Storage-----------------------------------------------------------------------30Costs and Materials------------------------------------------------------------------------------31Future Work---------------------------------------------------------------------------------------31Ethics------------------------------------------------------------------------------------------------33References------------------------------------------------------------------------------------------34Appendix A: PDS---------------------------------------------------------------------------------36Appendix B: Cart Usage Survey---------------------------------------------------------------38Appendix C: Push-Bar data---------------------------------------------------------------------403AbstractThe goal of this project was to develop a cart that houses all the components for monitoring an electroencephalogram (EEG). The cart should be designed with respect to ergonomic standards to facilitate easy workflow and ensure the comfort and safety of the users, while maintaining a compact footprint and low production costs. Each of three preliminary design alternatives focused on one of the following aspects: usability at various heights, optimizing usable work surface, and storage and cable management. User survey information regarding the usability of the cart was obtained from current EEG technicians using the cart. From the user survey data we developed a final design which provides additional workspace with the addition of a mounted monitor and a sliding keyboard tray, more storage from rearranging the components and adding removable baskets, cable management, an adjustable push bar, and an open foot print for comfort. Our adjustments address all of the concerns of the customer while creating a more ergonomic design. BackgroundProject MotivationThe goal of this project is to create an ergonomically correct device cart to house an Electroencephalography (EEG) system produced by Viasys Healthcare. The current cart that accompanies the components of the EEG system is often not purchased by Viasys’ customers because it does not adequately meet their needs. Viasys currently receives many complaints and suggestions regarding their EEG cart. The current cart has no options for adjustment to accommodate multiple users, no leg or foot space, minimal work surface, minimal storage, and no solution for cable management. Our goal is to4research these specific complaints and, along ergonomic considerations, design a cart that not only fulfills customer needs but also facilitates easy, comfortable workflow to ultimately increase Viasys’ customer satisfaction and profits. [16]Current Device Viasys Healthcare currently produces approximately 30 carts to store medical device equipment. They have had many complaints from their customers regarding the usability of all of their carts. They are interested in developing a new mid-sized cart to house their EEG equipment. If this project is successful in addressing customer concerns, Viasys anticipates transferring and applying many of our design concepts into a new line of carts. Figure I: Above is the current mid-sized cart from Viasys that would house EEG equipment.5 The main problems encountered with the current cart regard usability at multiple heights, lack of work surface, and minimal storage and cable management. The current cart has no adjustable components making it very uncomfortable people of various heights to use. The push bar on the back of the cart is mounted at one height which is not ideal for pushing. Also, the push bar is mounted too close to the back of the cart for the user to walk and push the cart comfortably with hitting their feet. Additionally there is virtually no work surface on the cart for filling out charts and other tasks that may need to be performed in addition to the EEG procedure. The monitor and keyboard occupy all of the desk space. Furthermore, there is no additional storage space for items, including cleaning supplies, the user may require aside from the components of the EEG system Finally, the cords from the EEG components are loose and not organized. The cables get in the way of task performance and are often run over when moving the cart. In general, the current cart from Viasys hinders work flow and is not adequate for its user population. [16]Figure II: A current Viasys cart in use at the UW hospital fully loaded.
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