2. Adjustable Litter Handle Litter Handle for Search and Rescue - PowerPoint PPT Presentation

2. Adjustable Litter Handle Litter Handle for Search and Rescue

3,453 wilderness rescue operations in the US in 2017

Manual Carries

More comfortable cooperation • between rescuers of different heights Product Goals More ergonomic lifting for rescuers • Lessen fatigue in rescuers •

Litter Handle CAD

Litter Handle Split clamp attachment Ratchet Release lever

Product Contract CUSTOMER NEED PRODUCT ATTRIBUTE ENGINEERING SPECIFICATION Can attach to existing Attaches to ⅝ " - ¾ " diameter litter Attachment Mechanism stretchers or litters railing Makes it easier to carry and Adjustable height and 90 degree rotation, adjustable lift someone angle of handle height of at least 12" Can easily be transported to emergency location and Weight Total weight less than 5 lbs back Easy to navigate through Less than 3” wide when vertical, Size small spaces less than 13” wide when horizontal Can support the weight of a Load weight More than 200 lbs person

Risks and lessons • Clamp mechanisms only lock in tension • Ratchets have directional locking • Parallel translational mechanisms led to mechanical binding • Rotational adjustments are limited by handle position

Pricing Cascade Rescue Equalizer • $465 - $850 for a set of four handles Our litter handles • $100 - $150 per handle

User testing for ease of use Next Iterate on design and customize parts Steps Design for adaptability to different litters Further consider design constraints

Citations [1] Biley, R., 2015, “Formula SAE Anthropometric Reference Data: 5th Percentile Female & 95th Percentile Male.” from https://www.fsaeonline.com/content/FSAE%20Rules95th_2016.pdf. [2] Cascade Rescue, 2017, “The EQUALIZER - Adjustable Litter Handle System.” from https://cascade-rescue.com/products/the-equalizer-adjustable-litter-handle- system.html. [3] Harris, S., 2018, Board of Directors, Central Massachusetts Search and Rescue Team, private communication. [4] Reid, A.“Equipment Limitations” 25-Sep-2018. Spoke about equipment limitations faced by park rangers in designated wilderness areas. Discussed firefighting equipment and search and rescue equipment. [5] 2017 Annual SAR Dashboard, https://nps.maps.arcgis.com/, (Accessed 10/15/18)