Final Design Requirements and Specs
| Requirements | Specifications | Justification |
| Device must apply heat to the intended tissue. | Device must reach 41+/- 2 °C. | Pennes HH: Analysis of tissue and arterial blood temperatures in the resting human forearm: 1948. J Appl Physiol. 1998, 85 (1): 5-34. https://diagnosticpathology.biomedcentral.com/articles/10.1186/1746-1596-9-36 |
| Device must securely fit a wide range of patients | 1a.Device must be adjustable between a forearm circumference of 15-38 centimeters 1b.Device should not move by 1cm after 10 min | Its +3 sigma for men and -3 sigma for women Device must fit 6 sigma of human forearms AF AMRL-TR-180-119 McConville, John Anthropometric Relationships of Body and Body Segments Moments of Inertia Anthropology Research Project, Inc. A/F Aerospace Medical Res 12-80 |
| Device must be portable/ Device must be light enough to carry without causing strain to the user | It will fit in an average size backpack of (16.7″ x 13″ x 8.5″). Device will be under 8 pounds | — average volume size of a backpack |
| Device will have enough power to support multiple uses per day. | Device must last for at least two hours of constant use (6 times = 1 hours) | |
| Device should function for a pre-sent amount of time | Device will run for 10 minutes | |
| Device will have a manual shutoff. | On and off button located on the surface of the device for easy access to the user | If patient feels uncomfortable or pain theycan shut it off manually |
| Device will have an automatic fail-safe shut off | Device will automatically shut off when Device temperature >44°C. | To ensure no tissue damage occurs.Dewhirst, Mark W et al. “THERMAL DOSE REQUIREMENT FOR TISSUE EFFECT: EXPERIMENTAL AND CLINICAL FINDINGS.” Proceedings of SPIE–the International Society for Optical Engineering vol. 4954 (2003): 37. doi:10.1117/12.476637 |
| Device will apply soft tissue massage | The pressure range will be from 2 PSI to 4 PSI Roberts, Langdon. “Effects of patterns of pressure application on resting electromyography during massage.” International journal of therapeutic massage & bodywork vol. 4,1 4-11. 30 Mar. 2011 | Soft tissue massage increases blood flow to a particular region1 Soft tissue massage can promote healing via increased fibroblast recruitment1 |
| Device should be rechargeable |