Technical Overview
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Kendall SCD™ 700 Series Controller
Technical Overview
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Kendall SCD™ 700 Series Controller
Agenda New Design Adjustable Bedhook Graphical User Interface Easy Start-Up Animated Alarm Resolution Improved Durability Reduced Noise USB Port New Tubing Sleeve Compatibility
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Kendall SCD™ 700 Series Controller New Design The resulting design satisfies all of these customer requirements Compact Size & Weight
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Specification
700 Series
SCD Express
Height
175mm
157mm
Width
198mm
178mm
Depth
114mm
114mm
Weight
2.3kg
2.0kg
Kendall SCD™ 700 Series Controller New Design
Portability & Battery Operation
Easy, One-Touch Start-Up
Smooth Surface & Shallow Depth
Prominent Display Screen
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Kendall SCD™ 700 Series Controller Adjustable Bedhook • SCD 700 Series controller’s Adjustable Bedhook •
Allows users to easily and intuitively place controller on hospital bed footboard, all in one-handed operation
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Kendall SCD™ 700 Series Controller Adjustable Bedhook • Range: •
Minimum: 19mm (0.75 inches)
•
Maximum: 82mm (3.25 inches)
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(SCD Express had maximum range of 66mm or 2.60 inches)
• Innovative clip design •
Conforms to footboard shapes, from rounded to square
•
Secure and robust attachment
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Kendall SCD™ 700 Series Controller Graphical User Interface • New GUI on a 3.2-inch color LCD screen •
Larger, more illustrative icons
•
Intuitive operation
• Layout intended to maximize ease of start-up and general use
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Kendall SCD™ 700 Series Controller Easy Start-Up Leg Compression • As with SCD Express, system automatically detects leg sleeve(s) •
Thus, start-up only requires one touch – the power button!
• Once detection process is complete, icon for leg sleeve(s) will appear on screen:
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Kendall SCD™ 700 Series Controller Easy Start-Up Foot Compression • If foot compression is to be used, controller will detect foot cuff(s) and then ask user to confirm their selection with a green question mark:
• To confirm, press the A and/or B button corresponding with the foot cuff(s) • Once this step is complete, foot compression will begin
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Kendall SCD™ 700 Series Controller Animated Alarm Resolution • Eighteen (18) alarms in total, categorized three ways:
User Resettable
• Allows user to address alarm and resume operation by pressing A or B button • Eliminates need for power off and on before resuming therapy • EXAMPLE: Tubing Disconnect
Manual Reset Required
• User can address alarm, but must then power unit off and on before resuming therapy • EXAMPLE: Vent Alarm •
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Check for kinked tubing
Kendall SCD™ 700 Series Controller Animated Alarm Resolution
Service Required
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• Indicates component failure that requires BioMed servicing • Icon appears on screen with corresponding alarm code
Kendall SCD™ 700 Series Controller Improved Durability
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Liquid Ingress
Power Supply
Case Cracking
Battery
Kendall SCD™ 700 Series Controller Improved Durability Liquid Ingress
• 700 Series Design Objective: Minimize number of paths by which liquid could enter controller, while still allowing sufficient air flow for cooling Air entry
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Air exit
Kendall SCD™ 700 Series Controller Improved Durability Liquid Ingress • Additional measures: •
Mold mechanical seals (i.e., gaskets) at enclosure seams
•
Position O-rings under screw heads where enclosure meets
• IPX Rating •
Indication of device’s level of protection against liquid ingress
•
Goal: IPX 3 Rating for SCD700 Series Controller (protection against spraying water, up to 60 degrees from vertical at 10 liters/min at a pressure of 80-100kN/m2 for 5 min)
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Kendall SCD™ 700 Series Controller Improved Durability Power Supply • To ensure power supply for 700 Series is durable, two-board design (currently in SCD Express) consolidated into single-board configuration
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Kendall SCD™ 700 Series Controller Improved Durability
Case Cracking
• 700 Series controller casing material compatible with wider range of cleaning agents •
Extended exposure to incompatible cleaning agents can embrittle controller’s material, eventually leading to cracking
• Requirements during material selection process: •
Chemical resistance
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Superior mechanical properties
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Flammability rating
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Cost
• Final selection: Xylex X8300
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Kendall SCD™ 700 Series Controller Improved Durability Case Cracking Compatible cleaning agents:
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Kendall SCD™ 700 Series Controller Improved Durability Battery • Lithium-ion battery retained for 700 Series, based on success with SCD Express •
Pack design from 4-cell to 3-cell (space constraint, cost reduction)
•
Battery provides up to 8 hours of operation (testing: 7.5 – 10+ hours)
•
Battery management microcontroller upgraded to more reliable system • Offers improved capacity measurement and “calibration” operation • Not subject to long-term storage issues • Battery parameters retained when battery completely discharged
• Battery internally stored and not externally accessible
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Kendall SCD™ 700 Series Controller Noise Reduction Measures taken: • Soft-mount compressor enclosure to dampen transferred vibration and reduce noise • Two-stage muffler design • Elastomeric over-mold to dampen sound
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