Prescribing Cala Trio; Choosing The Hand To Treat; Determining Band Size; Determining "Tremor Task - Cala Health Cala Trio CT1-STR Health Care Professional Manual

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PRESCRIBING Cala Trio™

The initial prescription for Cala Trio therapy includes a
stimulator, a three-month band supply, and a base station
for charging. A refill prescription for Cala Trio therapy
includes a three-month band supply every three months
for one year.
There are three steps in writing a prescription:
1. Select hand to treat
2. Determine band size
3. Select "Tremor Task"

4.1 Choosing the Hand to Treat

Cala Trio is indicated to aid in the transient relief of hand
tremors in the treated hand following stimulation in adults
with essential tremor (ET).
Cala Trio is designed to stimulate nerves in the left OR
right wrist. The device is not interchangeable between
the left and right hand.

4.2 Determining Band Size

Cala Trio Band comes in three sizes: Small, Medium,
and Large. To determine the appropriate band size,
measure the subject's wrist circumference of the
hand chosen for treatment.
To select the correct band size:
1. Measure the subject's wrist circumference with
a wrist measurement device/measuring tape.
Measure over the wrist bone.
2. Wrap the measuring tape around the wrist. There
should be no visible gaps between the measuring
tape and the skin.
3. Select the appropriate band size according
to the following:
Small: 13.6 – 16.4 cm
Medium: 16.5 – 18.4 cm
Large: 18.5 – 20.4 cm
LBL-5122 Rev C NOV 2019
Questions about Cala Trio? Visit CalaTrio.com/HCPFAQs

4.3 Determining "Tremor Task"

The "Tremor Task" is a postural hold that helps
characterize the patient's tremor. It is integral to the
therapy as the patient will perform the hold:
•
during setup to define the patient's baseline
tremor before starting therapy and to calibrate the
individualized therapy.
•
before and after therapy to characterize its impact.
You shall determine the tremor task to be the more
severe of the following two postural holds:
outstretched OR wing-beating.
Outstretched
postural hold
Before using the device, assess both postural holds with
your patient and determine their tremor task. Choose the
more severe postural hold. Advise the patient that this
specific "Tremor Task", either the outstretched OR wing-
beating hold, will be done when the device prompts them
for a tremor task.
OR
Wing-beating
postural hold
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