The Stryker Cast Cutter (models 0940-000-000 and 0941-000-000) is a medical device designed for the efficient and safe removal of plaster and synthetic casts. It is intended for use by trained medical professionals such as in-service trainers, physicians, nurses, surgical technologists, biomedical engineers, and other qualified healthcare technicians.
Function Description
The Cast Cutter operates by oscillating a blade at high speed to cut through cast material. It features a function switch that allows users to select between three operating modes: High Speed, Standby, and Standard Speed. The High Speed mode is used for rapid cutting, while the Standard Speed mode is for general use. The Standby mode prevents the blade from oscillating when not in use. The device is designed to be used with specific cast cutter blades, which are available for both plaster and synthetic cast materials.
Important Technical Specifications
Models:
- Stryker Cast Cutter (REF 0940-000-000)
- Stryker Cast Cutter (REF 0941-000-000)
Electrical:
- REF 0940-000-000: 100 V ~, 50-60 Hz, 1.5 A input (Nominal), 120 V ~, 50-60 Hz, 1.5 A input (Nominal)
- REF 0941-000-000: 220-240 V ~, 50-60 Hz, 0.75 A input (Nominal)
Speed:
- High: 12,800 CPM (cycles per minute) for 0940-000-000, 15,900 CPM for 0941-000-000
- Standard: 7,700 CPM for 0940-000-000, 10,700 CPM for 0941-000-000
Power Cord:
- 3.1 m [10.25 ft] length, fitted with NEMA 1-15P plug (0940-000-000)
- 3.1 m [10.25 ft] length, fitted with CEE 7/7 Schucko plug (0941-000-000)
Power Source Cord:
- None (0940-000-000)
- 2.5 m [8.2 ft] length, fitted with CEE 7/7 Schucko plug (0941-000-000)
Dimensions:
- 25.4 cm [10 inch] length
- 7.6 cm [3 inch] height
Mass:
Excursion:
Mode of Operation:
- Continuous with Intermittent Loading (5 minutes on, 1 minute off)
Duty Cycle:
- 5 minutes on, 1 minute off
Rest Between Cycles:
Maximum Temperature of Applied Part:
- Less than 48 °C [118 °F] (Maximum surface temperature as tested to the standards listed under Product Safety Certification.)
Equipment Type:
- Class II (Double Insulation)
Ingress Protection:
Means of Isolation from Supply Mains:
- Disconnection of the power cord plug from the facility power outlet or CastVac power outlet.
Environmental Conditions:
- Temperature Limitation: 10 °C to 40 °C
- Humidity Limitation: 30 % to 75 %
- Atmospheric Pressure Limitation: 70 kPa to 106 kPa
Product Safety Certification:
- CSA International
- Canadian Standards Association (CSA): CAN/CSA-C22.2 No. 601.1-M90, Medical Electrical Equipment – Part 1: General Requirements for Safety
- Underwriters Laboratories (UL): UL 60601-1, Medical Electrical Equipment, Part 1: General Requirements for Safety – First Edition; Revisions through and including April 29, 2005
- International Electrotechnical Commission (IEC): IEC 60601-1:1988, Medical Electrical Equipment – Part 1: General Requirements for Safety – Second Edition; Amendment 1 (1991); Amendment 2 (1995); Corrigendum 1 (1995)
- European Committee for Electrotechnical Standardization (CENELEC): EN 60601-1:1990, Medical Electrical Equipment – Part 1: General Requirements for Safety; Amendment 1 (1993); Amendment 11 (1993); Amendment 12 (1993); Amendment 2 (1995); Amendment 13 (1996)
Usage Features
Blade Installation and Removal:
- The device uses a blade retention screw to secure the blade. A blade tool is provided for tightening and loosening this screw.
- To install a blade, the blade tool is used to loosen the retention screw, the blade is slid onto the two blade guide posts, and then the retention screw is tightened.
- To remove a blade, the blade tool is used to loosen the retention screw, the blade is slid off the guide posts, and the blade is removed.
- Always ensure the blade retention screw is tight to prevent the blade from loosening during operation, which could cause injury.
- Blades should be inspected for wear and damage before each use and replaced if worn or damaged.
Connecting to Power:
- The Cast Cutter connects to a facility power outlet or a CastVac power outlet.
- Always ensure the power cord is not damaged and that the outlet provides the correct voltage.
- For models with a separate power source cord (0941-000-000), ensure both the power source cord and the appliance inlet connector plug are properly connected.
Operating Modes:
- The function switch allows selection between High Speed, Standby, and Standard Speed modes.
- The Cast Cutter blade will oscillate at high speed in High Speed mode and at standard speed in Standard Speed mode.
- In Standby mode, the blade will not oscillate.
Cast Removal Technique:
- Gently push the oscillating blade through the cast material.
- Cutting action is achieved by high-speed oscillation of the blade. The blade cuts on both the backward and forward strokes of the excursion.
- To ensure even blade wear and efficient cutting, the blade should be moved slightly up and down as the cut progresses.
- You should feel resistance as the blade cuts through the cast material. When the blade fully penetrates the cast, this resistance ends, and you should withdraw the blade.
- Use your index finger as a depth gauge to control the blade as it reaches the padding beneath the cast.
- Always use extreme caution when cutting synthetic cast material, as it may overheat and cause a burn injury.
- Do not remove a non-padded cast with the Cast Cutter.
- Do not operate this equipment with a damaged power cord or power cord plug.
- Do not use Stainless Steel Cast Cutter Blade REF 0940-025-000 to cut synthetic cast material.
Maintenance Features
Cleaning:
- Always disconnect the power cord plug from the facility power outlet or CastVac power outlet before cleaning.
- Clean the external surfaces of the equipment with a soft cloth moistened with a non-abrasive, mild detergent and water.
- Thoroughly dry the equipment with a soft, absorbent cloth.
- Do not immerse or soak the equipment in liquids.
- Do not use solvents, lubricants, or other chemicals unless otherwise specified.
- The vacuum hood and Belleville washer should be removed and cleaned regularly to prevent debris buildup.
Inspection, Testing, and Maintenance:
- Only individuals trained and experienced in the maintenance of reusable medical devices should inspect, test, and maintain this equipment.
- Do not disassemble or service this equipment unless otherwise specified.
- Always disconnect the power cord plug from the facility power outlet or CastVac power outlet before performing maintenance procedures.
- The Cast Cutter has a lifetime lubrication system. No additional lubrication is required.
- Calibration adjustments for the Cast Cutter were made during manufacturing. No additional calibration is required.
- Maintenance documentation for this equipment is available upon request by contacting Stryker.
Motor Brushes Replacement:
- The motor brushes should be replaced if the Cast Cutter operates at a very low speed or if the brushes are worn.
- Always disconnect the power cord plug from the facility power outlet or CastVac power outlet before replacing motor brushes.
- Remove the brush cap using a flat-head screwdriver.
- Remove the spring and brush.
- Insert the new brush and spring, then replace the brush cap.
- Tighten the brush cap to 0.45-0.90 N·m [4-8 lb-in].
- Always test the leakage current after replacing the motor brushes and springs.
Troubleshooting:
- A troubleshooting guide is provided in the manual to address common issues such as the Cast Cutter not connecting to power, motor brushes installed in the wrong orientation, function switch broken, fuse blown, blade not cutting smoothly, blade slips, vacuum hood level of suction decreased, and electrical noise.
- For service, contact your Stryker sales representative or call Stryker customer service.
Storage and Handling:
- Always store the equipment within the specified environmental conditions.
- To ensure the best performance and safety of this equipment, use of the original packaging material is recommended when storing or transporting this equipment.
Disposal/Recycle:
- Always follow the recommended current local recommendations and/or regulations concerning waste disposal.
- The device should be collected separately for recycling. Do not dispose of the unit in unsorted municipal waste.
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