54
Assemble and Disassemble the Cone
and Cylinder Tool
To disassemble:
1. Turn the knob to fully loosen and remove the connection shaft.
2. Pull the cylinder from the cone.
To assemble:
1. Align the red and green areas of the cone and cylinder.
2. Insert the connection shaft of the cone into the cylinder.
3. Turn the connection knob to tighten.
Digital Scale
Use the digital scale to apply 12 lbs of force to the cone in
Tests 1 and 2. At the small end of the cone tool, insert the scale
hook into the metal loop. Pull the scale slowly until the needle
points to 12 lbs.
Considerations for all Tests
• Bed Occupancy: For ease of mattress movement and
measurement, the patient should not be in the bed during the
measurement procedures.
• Bed Height: To avoid unnecessary bending or back strain, put the
bed at a comfortable working height position.
• Bed Wheels: To prevent movement of the bed during
testing, lock the wheels.
• Linens/Sheets: Assess the bed with sheets in place for
typical patient care. Remove any pillows.
• Personal Safety: To avoid injury, use care when pulling the tool
through openings in the bed rails. If the tool suddenly pulls
through, you could lose your balance and fall.
Always use the safety strap to keep the tool from injuring your
feet if it falls.
• Borderline Decision: For some tests, it may not be clear whether
the bed system passes or fails the test. Testers can get different
results for the same bed system. This is because mattresses vary in
softness and people handle tools slightly differently. If a test is a
close call, and you have trouble deciding whether the bed system
passes or fails, make your best decision and mark the result with
an asterisk (*) next
to your answer to show that it was a close call.
• Order of Tests: Do the tests in any order you wish, as long
as you do all of the tests on all of the rails.
• Intermediate Rail Position: Some rails have an intermediate
stopping position or a high and low locking position. Follow the
individual test instructions, which may require testing the rails at
all positions.
Test Methods
Zone 1: Potential head entrapment within the rail
The tools needed to do this test include the cone with safety
strap and spring scale.
Prepare for Test 1:
1. Lock the wheels.
2. Put the bed in the flat, horizontal position.
3. Fully raise all bed rails.
4. Put the bed at a comfortable working height position.
Do Test 1:
1. Attach the safety strap of the cone to the rail being tested.
Make sure the strap is short enough to keep the tool from
injuring your feet if it falls.
2. From inside the rail, insert the cone, small end first, into
the largest opening in the rail. Try to pull the tool through
Figure 2: Use of digital scale.
Figure 1: Disassembly and assembly of the cone and cylinder tool.
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