c
b
a
T-1
instructions for use
T-1
7.
If you are going to engage in physical activity while
wearing the firefly™ T-1 device, Firstkind recommends
the use of a firefly™ knee strap (purchased separately) to
ensure that the device remains in place on the leg. See
the instructions below for fitting the knee strap.
a) Place the strap over the device with the strap buckle
positioned at the front of the leg and the firefly™ T-1
device button showing through the strap hole.
b) Wrap the long end of the strap around the back of
the leg and secure the main, wider part of the strap
over the short end using the Velcro fastening material.
c) Thread the end of the long strap through the buckle
then return the long end to the back of the knee and
secure with the Velcro fastening tab.
d) Be sure that the strap is comfortable and not tight.
WARNING: The firefly™ strap is made from a synthetic
rubber known as Neoprene (polychloroprene) with a
Nylon (polyamide) cover, which are both commonly
used in other sports devices such as wetsuits and knee
braces. Neoprene and Nylon both have the potential to
cause skin irritation or allergic type skin reactions. Do
not use the firefly™ strap if you have previously
experienced a skin reaction to Neoprene or Nylon. If
you experience an itching skin rash or irritation when
wearing the strap, remove the strap immediately,
consult with your medical practitioner, and report the
incident to Firstkind Limited.
5
+
–
1
FIBULA
TIBIA
FIBULA HEAD
COMMON
PERONEAL
NERVE
3
2
4
Fitting and operating instructions
1.
Before attaching the firefly™ T-1 device, you must
first find and prepare the location where the device
is to be secured. When the marker line on the device is
placed over the center of the fibula head, the negative
electrode of the device will be over the common
peroneal nerve in the optimum position for stimulation.
The fibula head can be found on the outside of the leg,
just below the level of the knee. The fibula head can be
felt as a round protrusion at the very top of the fibula
bone, which runs down the outside of the lower leg.
If you are unsure how to locate the fibula head or the
common peroneal nerve, see www.fireflyrecovery.com
for further advice.
2.
It is important that the firefly™ T-1 electrodes be
applied to clean, dry skin in order to achieve optimum
muscle contractions. Wash the skin behind your knee
using a washcloth with mild soapy water, rinse, and dry
thoroughly. Do not apply any moisturizer. Any excess
hair in the area of application may be removed using
trimmers or clippers, but avoid shaving the skin as this
may increase the risk of skin irritation from the firefly™
T-1 device electrodes or adhesive.
3.
Peel off the protective film and secure the device to
a straight leg so that the raised indicator line on the
device (marked with arrows) is positioned at the center
of the fibula head. The head of the device should be
positioned towards the front of the leg – with the tail
of the device wrapped around and to the rear of the
leg below the crease of the knee. This will put the
negative electrode (shaded area) over the common
peroneal nerve.
4.
Use a short press/click of the button (0.5 seconds)
to activate the device (the device will start once the
button is released). The firefly™ T-1 device will operate at
the lowest stimulus setting (level 1) when first turned
on. There are 7 stimulus levels (indicated by the flashing
light: one flash for level 1, two flashes for level 2, etc.).
Use the lowest level you need to get visible but
comfortable contractions in the lower leg. For most
people, this is level 3 or 4. A short press of the button
(0.5 seconds) will increase the stimulus by one level,
while a longer press (1 to 2 seconds) will decrease the
stimulus by one level. You may also want to change the
level setting up or down over time to account for
changes in stimulation due to muscle accommodation
or changes in leg position. To turn off the device
completely, hold the button down until the light stops
flashing.
5.
To remove the firefly™ T-1 device, for example to
re-position the device, gently lift the long end of the
device, taking care to peel the adhesive gel off the skin
along with the device. Lift the device away from the leg
progressively without bending it double, this will
preserve the device and prevent damage to the skin.
Removal may result in a loss of adhesion, avoid
repositioning the device unless it is necessary.
6.
If the original location does not produce movement
of the muscles, stimulation may be achieved using an
alternative location behind the knee. After preparing
the skin (see step 2 above), apply the device either
slightly above or below the crease at the back of the
knee with the markers aligned with the outer tendon.
See www.fireflyrecovery.com for further details.
Instr
uc
tions f
or use/user manual
A
tt
en
tion: B
e sur
e t
o r
ead and understand
these I
nstr
uc
tions f
or U
se b
ef
or
e applying the
fir
efly™
T-1 de
vic
e.
1.0
fir
efly™
T-1 d
evi
ce
1.1
Description of fir
efly™
T-1 d
evi
ce
The fir
efly™
T-1 devic
e is a small disposable
,
in
ter
nally po
w
er
ed
, neur
omuscular stimula
tion
devic
e f
or muscle c
onditioning
. I
t is an in
teg
ra
ted
devic
e and ther
e ar
e no additional cables or
elec
tr
odes r
equir
ed f
or its oper
ation. F
amiliar
iz
e
yourself with the c
omponen
ts bef
or
e y
ou use the
devic
e and the sk
in pr
epar
ation ma
ter
ials
.
1.2
Indic
ations f
or use
The fir
efly™
T-1 devic
e is in
tended f
or the
stimula
tion of health
y muscles in or
der t
o
impr
ov
e or facilita
te muscle per
for
manc
e.
The
fir
efly™
T-1 devic
e is not in
tended t
o be used in
conjunc
tion with ther
ap
y or tr
ea
tmen
t of
diseases or medical c
onditions of an
y k
ind
.
2.0
Con
tr
adic
tions
D
o not use this devic
e if y
ou ha
ve a car
diac
pac
emaker
, implan
ted defibr
illa
tor
, or other
implan
ted metallic or elec
tr
onic devic
e. Such use
could cause elec
tr
ic shock
, bur
ns
, elec
tr
ical
in
ter
fer
enc
e, or dea
th.
3.0
W
arnings
•
If y
ou ar
e in the car
e of a ph
ysician, c
onsult with
your ph
ysician bef
or
e using this devic
e.
•
D
o not apply stimula
tion o
ver y
our neck because
this c
ould cause sev
er
e muscle spasms r
esulting
in closur
e of y
our air
w
ay
, difficult
y in br
ea
thing
, or
adv
erse eff
ec
ts on hear
t r
hythm or blood
pr
essur
e.
•
D
o not apply stimula
tion acr
oss y
our chest
because the in
tr
oduc
tion of elec
tr
ical cur
ren
t in
to
the chest ma
y cause r
hythm distur
banc
es t
o y
our
hear
t, which c
ould be lethal
.
•
D
o not apply stimula
tion o
ver painful ar
eas
. I
f
you ha
ve painful ar
eas
, y
ou should c
onsult with
your ph
ysician bef
or
e using this devic
e.
•
D
o not apply stimula
tion o
ver open w
ounds or
rashes
, or o
ver sw
ollen, r
ed
, inf
ec
ted
, or inflamed
ar
eas or sk
in eruptions (e
.g
., phlebitis
,
thr
ombophlebitis
, v
ar
ic
ose v
eins).
•
D
o not apply stimula
tion o
ver
, or in pr
oximit
y t
o,
canc
er
ous lesions
.
•
D
o not apply stimula
tion in the pr
esenc
e of
elec
tr
onic monit
or
ing equipmen
t (e
.g
., car
diac
monit
ors
, EC
G alar
ms), which ma
y not oper
ate
pr
oper
ly when the elec
tr
ical stimula
tion devic
e is
in use
.
•
The fir
efly™
T-1 devic
e must be kept dr
y. D
o not
use the fir
efly™
T-1 devic
e in a humid a
tmospher
e
(e
.g
., sauna, h
ydr
other
ap
y) or while in the ba
th or
sho
w
er
.
•
D
o not apply stimula
tion while dr
iving
, oper
ating
machiner
y, or dur
ing an
y ac
tivit
y in which
elec
tr
ical stimula
tion can put y
ou a
t r
isk of injur
y.
•
D
o not use the devic
e on childr
en, it has not been
ev
alua
ted f
or pedia
tr
ic use
.
•
A
pply stimula
tion only t
o nor
mal
, in
tac
t, clean,
health
y sk
in.
4.0
Pr
ec
autions
•
The long-t
er
m eff
ec
ts of elec
tr
ical stimula
tion ar
e
unk
no
wn.
•
Sinc
e the eff
ec
ts of stimula
tion of the br
ain ar
e
unk
no
wn, stimula
tion should not be applied
acr
oss y
our head
, and elec
tr
odes should not be
plac
ed on y
our head
.
•
The saf
et
y of elec
tr
ical stimula
tion dur
ing
pr
eg
nanc
y has not been established
.
•
You ma
y e
xper
ienc
e sk
in ir
rita
tion or
hypersensitivit
y due t
o the elec
tr
ical stimula
tion
or elec
tr
ical c
onduc
tiv
e medium (gel).
•
Consult y
our ph
ysician bef
or
e using the fir
efly™
T-1 devic
e if an
y of the f
ollo
wing apply t
o y
ou:
–
You ar
e pr
eg
nan
t
–
You ha
ve a suspec
ted or diag
nosed hear
t
disease
–
You ha
ve suspec
ted or diag
nosed epilepsy
–
You ha
ve a t
endenc
y t
o haemor
rhage (bleed
in
ter
nally) af
ter an injur
y or fr
ac
tur
e
–
You ha
ve had a r
ec
en
t sur
gical pr
oc
edur
e as
muscle c
on
tr
ac
tions ma
y disrupt the healing
pr
oc
ess
•
Follo
w an
y other pr
ecautions r
ec
ommended b
y
your ph
ysician.
•
U
se caution if stimula
tion is applied o
ver ar
eas of
sk
in tha
t lack nor
mal sensa
tion.
•
Keep this devic
e out of the r
each of childr
en.
•
U
se this devic
e only with the leads
, elec
tr
odes
,
and ac
cessor
ies r
ec
ommended b
y the
manufac
tur
er
.
•
Oper
ation in close pr
oximit
y (e
.g
. within 3 f
eet) t
o
a shor
tw
av
e or micr
ow
av
e equipmen
t ma
y
pr
oduc
e instabilit
y in the stimula
tor output
.
•
The fir
efly™
T-1 devic
e has no r
eplac
eable or
ser
vic
eable par
ts and r
equir
es no user
main
tenanc
e.
The unit must not be disassembled
.
•
The fir
efly™
T-1 devic
e is not c
ompa
tible f
or use
with an MRI scanner
. R
emo
ve the devic
e if y
ou
need t
o under
go an MRI.
•
D
o not shar
e the fir
efly™
T-1 devic
e with others
.
Ev
er
yone should ha
ve their o
wn devic
e t
o a
void
an
y possibilit
y of c
on
tamina
tion tha
t c
ould r
esult
in sk
in r
eac
tions
.
•
D
o not use the fir
efly™
T-1 devic
e if the devic
e or
its pack
ag
ing sho
w visible sig
ns of damage
.
5.0
A
dv
erse r
eac
tions
Some users ma
y e
xper
ienc
e sk
in ir
rita
tion or
hypersensitivit
y due t
o the adhesion ma
ter
ial
,
elec
tr
ical stimula
tion or elec
tr
ical c
onduc
tiv
e
medium. I
f this happens
, y
ou can tr
y r
educing the
irr
ita
tion b
y using an alt
er
na
te elec
tr
ode
plac
emen
t, see fir
eflyr
ec
ov
er
y.c
om f
or fur
ther
details
. I
f the sk
in ir
rita
tion is sig
nifican
t, swit
ch off
the devic
e, r
emo
ve
, and disc
on
tinue use
. I
f the
sk
in ir
rita
tion persists y
ou should c
onsult with
your doc
tor
.
6.0
Rep
or
ting of an
y side eff
ec
ts or
adv
erse r
eac
tions
A
ny side eff
ec
ts or adv
erse r
eac
tions due t
o use
of the fir
efly™
T-1 devic
e should be r
epor
ted
fig 1.2
underside of the fir
efly™
T-1 de
vic
e
electrodes
fig 1.1
topside of the fir
efly™
T- 1de
vic
e
LED
button
on/o
ff/settings
raised location indicator
protective moulding
C
M
Y
CM
MY
CY
CMY
K
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