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					P09042                                            Lap Band Test Stand
Rev. G                                                    Specifications                                                                            Date: 2/22/2009
Engr. Spec.
            Importance   Source                       Specification (description)                  Unit of Measure   Marginal Value   Ideal Value       Comments/Status

                                                                                                                                                      Complete. Test stand
   ES1       Required     CN 1      Test stand envelope                                             mmxmmxmm         1000x1000x1000   300x300x300   envelope is 610x305x340
                                                                                                                                                    Complete. Dimensions are
   ES2       Required     CN 2      Artificial stomach size, diameter and thickness                   mmxmm            20-30x3-15     20-25x5-10          22.5-28x3-15

                                    Artificial stomach material mechanical properties similar to      Mpa vs.                                       Complete. Qualitative and
   ES3       Required     CN 2      biological stomach, Stress vs. Strain                             mm/mm                                           quantitative analysis.

                                                                                                                                                    Complete. Design includes
                                                                                                                                                       both analog and digital
                                                                                                                                                    pressure sensors that meet
   ES4       Required    CN 3, 10   Measure static pressure of saline for pressure range             PSI (gage)           0-15           0-30         or exceed specifications

                                                                                                                                                    Complete. Design includes
                                                                                                                                                    a 0-1lb and a 0-25lb force
   ES5       Required     CN 3      Measure Force on stomach for range                                   lb               0-5            0-10            sensing resistor.

                                                                                                                                                      Complete. Pumping
                                                                                                                                                    apparatus is designed to
   ES6       Required     CN 5      Pump saline into and out of Lap-Band, volume                         cc              10-Mar         10-Mar      meet these specifications.
                                                                                                                                                      Complete. Flow rate
   ES7       Required     CN 5      Pump saline into and out of Lap-Band, flow rate                    cc/min              5              10               >10cc/min
                                    Servicable/replacable components List. List of components
   ES8       Required     CN 8                                                                        Feature
                                    that can be changed out or repaired.                                                                                     Complete.
                                    Test interface. Computer interface to control the operation                                                          Complete. Labview
   ES9       Required    CN 4, 9                                                                      Feature
                                    of the test stand. Displays measured data.                                                                       controls/data acquisition
                                                                                                                                                        Complete. Labview
                                                                                                                                                       program collects and
  ES10       Required     CN 10     Collect and Store data. Stores static pressure of sailine,        Feature                                        stores data into .csv files
                                    pressure on stomach, and volume of saline in Lap Band                                                               for easy review and
                                    Device.                                                                                                                 manipulation.

                                                                                                                                                        Complete. Diameter
  ES11       Required     CN 5      Lap Band diameter increment step                                    mm                0.5             0.2       increment step of <0.2mm

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