Aztec GEM II User manual

www.aztecmedical.co.uk

www.aztecmedical.co.uk
1
GEM II Battery Powered Ring Cutter Kit

www.aztecmedical.co.uk
2
Operational Guide
1. SelectandmountappropriatecungdiscforGEMIIringcuer.Move
 ‘lockingswitch’tolockposion.Insertcorrectlyloadedbaerycasseein
 toGEMIIbody.
2.Applyagenerousquantyofwaterbasedgeltoringsurface.
3. Slidengerguardunderring.
4. InsertGEMIIguidearmdiscintongerguardguideblock.Restcungdisc
 onringsurface.AcvatemotorallowingtheweightoftheGEMIIcung
 headalonetoprovidethenecessarydownwardpressureontothecung
 disc.
5. MoveGEMIIbackandforthalongguideblocksothatcung 
disctraversestheenrewidthofthering.Asuddenincrease 
inrotaonspeedindicatesringhasbeencutthrough.
6. Ifpaentwarnsofheatbuild-upstopcungimmediately, 
cleangelfromringsurfaceandre-applyfreshgelandconnue 
withcungprocess.
7. UseGEMIIringspreaderpliersorforcepstoremovering.
Foramoredetaileddemonstraonofthe
cungprocesswatchthe
GEMIIBaeryPoweredRingCuerDVD

www.aztecmedical.co.uk
3
Safety Instructions
Maintenance Instructions
READ INSTRUCTIONS BEFORE USE
Light eye protecon should be worn by operator and paent.
• NeveruseringcuerwithoutngerguardorPerspexshieldinplaceorifeithercomponentis 
 damaged.
• NeveruseanypowersourceotherthandomescAAsizebaeriescapableofdeliveringa
 maximumvoltageof6vDC.
• Nevermodifytheringcuertorunonmainspower.
• NeverexaminearotangcungdiscexceptthroughthePerspexshield.
• Neverreusedamagedorbadlyworndiscs.
• Never start cung through a ring without rst applying a signicant quanty of water based
gel to the ring surface. The gel acts as a heat sink, traps cut ring debris and impedes
trajectory of parcles from a rotang disc.
• Neveroperatetheringcuerinanatmospherewhereasparkcouldcauseanexplosion.
• Neveruseorre-useacungdiscifeitheroneorbothplascwasherssupporngthediscare 
 missing.
• Alwaysengagethe“Lock”immobiliserswitchtodeacvatethemotorwhen:
 a) Mounngordisconnecngacungdisc.
 b) Engagingthengerguard.
 c) Pausingduringcungtoexaminethecungprogress.
 d) Wipingawayusedgelandreapplyingfreshgel.
 e) Whenringcuerisnotbeingacvelyusedorleunaendedwhenstored.
Always:
• Examinecungdiscspriortouse.Discardanydamagedorbadlyworndiscs.
• Restthecungbladeontheringsurfacebeforeacvangthemotor.
• Warn the paent that the cung process generates heat and that the paent should warn
the operator if the heat build-up is causing discomfort. If this happens the cung process
must stop. The water based gel wiped from the ring surface and fresh cold gel reapplied
before re-starng the cung process.
• Cleanngerguardunitaeruse.
• RemovebaeryholderfromGEMbodyaeruse.
• Stop motor aer 10 minutes of connuous use and allow motor to cool down for 15 minutes
before re-starng.

www.aztecmedical.co.uk
4
Maintenance Instructions
The ring cuer may be wiped down with any decontaminaon soluon but must not be soaked
in uid or autoclaved.
DISC CARE
Removedisc(RETAINLOCKINGSCREW).Examinediscfordamageorexcessivewear-ifthisisthe
case,replacedisc.
FINGER GUARD CARE
Cleanupngerguardandguidechannelofngerguard.Examinemetalguard;makesuredisc
hasn’tcutthrough.Ifsoreplacemetalguard.
PERSPEX SHIELD CARE
WipeanyresiduefromPerspexshield.
Aer use, examinaon and cleaning, always return the GEM II Ring Cuer and its components
back to their alloed spaces in the GEM II presentaon case.

www.aztecmedical.co.uk
5
Technical Specications
Declaration of Conformity
Model A-Z 300 Series 101
MotorRe280/3DryBearingWeight:
HandPieceWeight:
PowerSource:
NoLoadSpeed:
Torque:
StallTorque:
SoundPressure:
SoundPower:
VibraonLevels:
44gms
127gms
6voltDC(4xAA)Baeries
3v8,800rpm
6v16,000rpm
3v63gcm
6v120gcm
3v126gcm
6v240gcm
61.08dB(A)
73.58dB(A)
3.2m/s2
Recycling & Disposal

www.aztecmedical.co.uk
6
Declaration of Conformity
THE DECLARATION OF CONFORMITY
Wedeclareunderoursoleresponsibilitythatthisproductisinconformitywiththefollowingstan-
dardsorstandardiseddocuments.EN55014inaccordancewithDirecves2004/108/EC,2006/42/
ECandEN60745
ChristopherMacGregor
HeadofQualityAssurance
WEEE compliant registraon no. WEEE/DG 3326 WV
Recycling & Disposal
Onlydisposeofelectrical/electronic/baeryitemsinseparatecolleconschemes,whichcaterfor
therecoveryandrecyclingofmaterialscontainedwithin.
Yourcooperaonisvitaltoensurethesuccessoftheseschemesandfortheproteconofthe
environment.

www.aztecmedical.co.uk
7
Guarantee
DearCustomer,
Intheunlikelyeventthatyourdevicedevelopsafault,pleasecontactourcustomerservice
department.
1. Theseguaranteetermscoveraddionalguaranteerightsanddonotaectyourstatutory 
 warrantyrights.
2. Ourguaranteecoversproblemscausedbymaterialormanufacturingdefects,andwillresultin
 therepairofthesedefectsorreplacementofthedevice.
3. Thefollowingarealsoexcludedfromourguarantee:
 a) Faultsduetoaccidents,customermisuse,orunauthorisedrepairs.
 b) Consumablepartssuchasblades.
 c) Failureduetolackofrounemaintenance.
 d) Failureasaresultofnotusingtheequipmentinaccordancewiththemanualandsafety
  instrucons.
 e) Anyunauthorisedmodicaonstothedeviceoritscomponents.
4. Theguaranteeisvalidforaperiodof2yearsstarngfromthepurchasedateofthedevice.
 Guaranteeclaimsshouldbesubmiedbeforetheendoftheguaranteeperiodwithintwo 
 weeksofthedefectbeingnoced.Noguaranteeclaimswillbeacceptedaertheendofthe
 guaranteeperiod.Theoriginalguaranteeperiodremainsapplicabletothedeviceevenif 
 repairsarecarriedoutorpartsarereplaced.Insuchcases,theworkperformedorpartsed
 willnotresultinanextensionoftheguaranteeperiod,andnonewguaranteewillbecome
 acvefortheworkperformedorpartsed.
A-Z Tec Medical Ltd
Email:inf[email protected]o.uk
www.aztecmedical.co.uk

www.aztecmedical.co.uk
8
Guarantee
Trouble Shooting & F.A.Q’s
TROUBLE SHOOTING
Motorfailstooperate
Motorstallsduringcung
Cungdiscmakeslileprogressincung
throughring
Check baeries are loaded into the baery
cassee correctly.
Check that retaining springs in baery cas-
see are sound and holding baeries rmly
in place.
Check baeries are in a charged condion.
Check that ‘Lock’ switch on GEM II unit is
not engaged.
Operator applying excessive force during
cung process.
Baeries are depleted, change for fully
charged baeries.
Wrong disc selected for ring metal type
 • UseDiamondcungdisc
  (Ref.A-Z223)forhardmetalsi.e.
  Iron,Steel,Planum.
 • UseCarbidecungdisc
  (Ref.A-Z224)forsometalsi.e.
  Gold,Silver,Copper.
Disc is badly worn, change for new disc
Diamondcungdisc(Ref.A-Z223)
Tocheckifdiscisworn,runngeraround
cungdiscedge.Ifsmoothtotouchthe
diamondgritiswornaway,replacedisc.

www.aztecmedical.co.uk
9
Cungdiscmakeslileprogressincung
throughring(Connued)
Lockingscrewunwindsduringoperaon
Carbidecungdisc(Ref.A-Z224)
Ifcungdiscisworndowntoplasc
spacers,replacedisc.
Baeries have been loaded into baery
cassee incorrectly. Re-load baeries into
cassee in the correct order and make sure
the arrows on the baery cassee and the
GEM II unit are aligned.
F.A.Q’s
1. Howmanyringswillacungdisccut
 through?
2. Whyisitnecessarywhencungthrough
 hardmetalstomakeacuthalfway
 throughtheringononesideandthen
 allthewaythroughinaposiondirectly
 oppositetherstcut?
A carbide disc acng on a so metal, i.e.
Gold wedding ring approximately 4mm
wide by 1mm thick will cut through 10-15
rings.
A diamond disc acng on a hard metal, i.e.
steel 4mm wide by 1mm thick would be
capable of cung through approximately 6
rings allowing for the fact that a hard metal
requires cung in 2 separate locaons on
the ring.
N.B. The cung surface of the ring must be kept as cool as pos-
sible to preserve the diamond grit on the cung edge of the disc.
This is achieved by cung for 3 or 4 seconds, pausing for a second
and repeang the process.
Rings made of hard metals when cut
through tend to close up trapping the
cung disc. This is due to the high tensile
strength in the metal. Parally cung
through a ring signicantly reduces the ten-
sion in the ring so that when the ring is cut
through on the opposing side to the rst cut
the ring won’t collapse in on itself and trap
the cung disc.

www.aztecmedical.co.uk
10
3. Whyisitnecessarytosupplytwotypes
 ofcungdiscwhynotjustusea
 diamonddiscforallringcung?
4. ThemotorkeepsstallingandIamcertain
 thatIamfollowingthecungprocedure
 outlinedintheinstruconsi.e.not
 pressingdowntoohardonthecung
 discasImoveitbackwardsandforwards
 acrosstheringsurface.Alsothealkaline
 baeriesusedwerevirtuallynew.
5. HowdoIcheckauseddiamonddiscto
 ensurethatisserviceable?
6. Althoughwehaveusedwaterbased
 gelaspertheinstruconswesllreceive
 complaintsfromafewpaentsabout
 heatbuild-upinthering.
In fact either disc could be used for all the
cung procedures. However if a carbide
disc is deployed to cut through a hard metal
i.e. Steel it will wear down rapidly and
require to be replaced several mes during
the process of cung through a single ring.
If a diamond disc is used on so metal the
metal starts to clog up the diamond cung
facets eecvely blunng the discs cung
edge.
If you are not forcing the cung process
the fault lies with the power source.
Although Alkaline baeries are an excel-
lent power source when fresh the GEM II
ring cuer does drain the power from them
quite rapidly and if one of the four baer-
ies is below strength it will have a marked
eect on the performance of the ring cuer
motor. A more consistent and reliable
power source these days are provided by
re-chargeable NiMh baeries which are
widely available and inexpensive. They can
store and deliver more power over a longer
period of me than their Alkaline equiva-
lent. Re-chargeable NiMh hold their charge
for up to 6 months and can be re-charged
at any me as they do not suer from
the memory eect shown by the old NiCd
rechargeable baeries.
Simply run a nger around the outer rim of
the disc. If 50% of the surface feels rough to
the touch the disc has just enough diamond
grit to be serviceable. If not it must be
replaced. A worn disc will cut very lile but
generate a great deal of friconal heat.
Cung generates friconal heat. It can’t
be prevented but it can be controlled to
acceptable levels.

www.aztecmedical.co.uk
11
First if using a diamond disc check condi-
ons of the disc (See Queson 6).
It is important to warn the paent that
there will be a heat build-up in the ring and
that as soon as they feel the ring geng
warm to nofy the operator. The operator
should stop immediately wipe away the
gel from the ring and re-apply fresh cold
gel before connuing the cung process.
Normally by this stage the ring will be virtu-
ally cut through so that the second phase of
cung will be short lived.
According to a research study in the brain
journal of Neurology 125 issue 3 pp. 501-
510 on ‘Pain Threshold on Normal Skin!’
The range of warm sensaon is 37.8 ±
28°C. Redness of the skin equivalent to sun
burn occurs around 44-45°C. In tests we
have carried out on rings that have water
based gel applied to the ring surface prior
to cung aer 60 seconds of connuous
cung temperature on the surface of a ring
made of brass 4mm x 1mm thick measured
38-39°C. Aer a further 60 seconds the
surface temperature had reached 44-45°C.
A sensible precauon to take would be to
cut for 60 seconds, stop, wipe away old gel
and replace with fresh cold gel and re-start
the cung process for a further 60 seconds.
As the cung process has been interrupted
the ring surface temperature would not
reach 44°C. It is unlikely a 3rd phase of cut-
ng would be required.
We have found that liquid soap from a soap
dispenser works well. It helps to lubricate
the ring area and makes inserng the metal
guard secon of the nger guard much
easier. It also collects the debris from the
cung process.
7. Whatifaringhastoberemovedfroman
 unconsciouspaent?
8. Whatifwaterbasedgelisnotavailable.
 Isthereanotherproductcommonly
 availablethatcanbeused?

www.aztecmedical.co.uk
12
The guard is designed to be exible.
With usage, scu and gouge marks natu-
rally develop. The nger guard is safe to use
as a barrier sll exists between the ring and
the paents skin. However if the guard has
been cut through it must be replaced.
No. This indicates that dried gel and metal
debris have formed a coang on the walls
of the groove in the guide block and need
removing by cleaning thoroughly.
This is a precauonary requirement. During
use heat builds up in the motor and over
me can reach a temperature where the
insulaon on the motor windings starts to
break down. This can cause a short circuit
to develop resulng in the heang up of
the retaining springs in the baery cassee,
which at a certain temperature will collapse
and cut o the power to the motor.
A noisy motor does not automacally
indicate that the motor needs replacing. A
drop of lubricant on the drive sha bearing
at the front of the motor and another on
the bearing at the back of the motor should
help to reduce noise.
9. Isitacceptabletobendthemetalnger
 guardtogetitunderaring?
10.Inocedthatonthemetalseconofthe
 ngerguardthatisinsertedunder
 theringthatanumberofscumarks
 andgougeshaveappeared.Isitsafeto
 usethengerguardinthiscondion?
11.Inocedthattheguidediscdoesn’trun
 assmoothlyalongthegrooveinthe
 ngerguardsblackplascblockasitdid
 whennew.Doesthisindicatethatthe
 guardneedsreplacing?
12.FromthesafetynoceIseethataer10
 minutesofconnuoususagethering
 cuerhastobeletocooldownfor15
 minutesbeforeitcanbestartedup
 again.Whyisthisnecessary?
13.Wehavenocedthatourringcuer
 hasbecomerathernoisycompared
 towhenitwasnew.Doesthismeanthe
 ringcuermotoriswearingoutand
 needsreplacing?Isthereanythingwe
 candotoreducethenoise?

www.aztecmedical.co.uk
A-ZTecMedicalLtd
Email:inf[email protected]
www.aztecmedical.co.uk