Renco PREG-ALERT PRO User manual

PREG-ALERT PRO®
INSTRUCTIONS
(Rev. 2)
한국대리점: 길우트레이딩 02)2636-0009 팩스02)2636-4753 서울시 영등포구 양평동 3가 40-2 에이스테크노타워703호 [email protected] www.gilwoo.co.kr

PREG‐ALERTPRO®INSTRUCTIONMANUALRev.27/1/2007
©2007RencoCorporation  Page2of13
Forclarityanduniformity,wehavegivenallmetricmeasurementinmillimeters(mm),even
thoughinsomecasesthecommonpracticemaybetousecentimeters(cm).Toconverttocm,
dividemillimetersby10.Forthesamereasonswehaveomittedinchconversionsinmanycases.
Toconvertmmtoinches,dividemmby25.4ormultiplyby.04.NotethatInallcasesandforall
readings,measurementscanbeindicatedineithermmorinches.

QUICKSTARTCONTROLSANDFUNCTIONS
ON/HOLDOFF:
Presstoturninstrumenton.Toturnonwithbacklight,holdkeyfor2seconds.When
readingisdisplayed,pressON/HOLDtomaintainit.PressingagainreleasestheHOLD.
Instrumentautomaticallyturnsoffifthereisnousefor3.5minutes.

SENSKeys
Selectssensitivity1(least)through4(greatest),whichisdisplayedonthescreen.Usethe
lowestsettingthatgivesaresult.Usingtoohighasettingcouldgivespuriousresults.

DEPTHKeys
TheDEPTHKeyscontrolthepositionofaverticaldashedmarkeroneachscreen.
Adjusttodepthofinterestusingrightandleftarrowkeys.Thismarkeriscalibrated
andthedistanceisdisplayedontherightsideofthescreen

IntheseInstructions,scalesatthebottomofthevariousillustrationscreensare
evenlydivided.Minordivisionsarenotshownonthegraphicsheretoavoidclutter.

PREGNANCYSCREENS:
Theverticalmarkerdisplaysthedistancetoaspikeofinterest.Tochangefrommmto
inches,gotothefatscreenandpresstheOPTIONkey.
COW:LeftMajorDivision:101mm(4in)RightMajorDivision:338mm(13.5in)
PIG:51‐288mm(2‐11.5in)
SHEEP:51‐288mm(2‐11.5in)
OTHER:51‐209mm(2‐8.3in).(Thisscreenisforsmall&mediummammals.
UseCOWforlargemammals.)

FATScreen: Range:3mmto42mm(.12‐1.65in)OPTIONkeyselectsunits,mmorin.
LOINScreens:UseOPTIONKeytoselectloworhighrange:50mm‐140mm(2‐
5.6in)or90‐180mm(3.6‐7.2in).
FortheFATandLOINscreens,spikesthatoccurtorightoftheverticalmarker
positionwillbesuppressed,whichhelpstofurtherrefinethedisplay.


SELECTKey:
FAT:Displayrangeis3‐42mm.UseOPTIONkeytoselectin.ormm.NOTE:In
ordertoswitchmeasurementsystemwiththeOPTIONkey,theFATscreen
한국대리점: 길우트레이딩 02)2636-0009 팩스02)2636-4753 서울시 영등포구 양평동 3가 40-2 에이스테크노타워703호 [email protected] www.gilwoo.co.kr

PREG‐ALERTPRO®INSTRUCTIONMANUALRev.27/1/2007
mustbedisplayed.Theselectedmeasurementsystemwillbeusedforall
measurements.
LOIN:UseOPTIONkeytoselectthelowrange,50‐140mmorthehighrange90to
180mm.

ForbothFATandLOINmeasurements,indicationstorightoftheverticalmarkerare
suppressed,thusmitigatingextraneousinformation.

PREGNANCY:UseOPTIONkeytoselect,COW,PIG,SHEEPorOTHER.Note:The
rulerscaledivisionmarkersontheseveralpregnancyscreensrepresentdifferent
intervalsandarejustforreference.Toseetheactualdistancefromtheskinto
particularspikeofinterest,usetheDEPTHkeystomovetheverticalmarkertoitand
readthedistanceshown(inmmorinches).Tohelpavoiderrors,OPTIONkeymustbe
held½secondwhenchangingfromonescreentoanother.

COW,PIGandSHEEPscreensdisplayaheavyhorizontalbarunderthegraph,which
indicatestheproximatedistancetothenearandfarsideoftheuterus.Strongspikes
withinthisareaindicatepregnancy.

ThePreg‐AlertProisamicroprocessor‐basedinstrument,usinglowpowerA‐Modeultrasound
forthedetectionofpregnancyinmammalsandthemeasurementoffatandmuscletissue
thickness.Itcanbelikenedtoanelectronicrulerthatindicatesadistancecomputedfromthe
timeittakestoreceivethereflections(echoes)thatweregeneratedbytheultrasonicpulses
emittedbythetransducer(alsocalledthe“probe”).Soundtravelsatdifferentspeedsthrough
fatandmuscle.Theinstrumentusestheappropriatespeedforeach,whichmayresultin
differenceswhencomparedtoscanners,mostofwhichusethesamespeedforbothtissues.
Thedisplayisananalogpresentationinadigitalenvironment,whichisenhancedtoeliminate
ormitigatethepresentationofspuriousreflectionsandnoise,oftenseenonolderCRT
displays.

Therearethreeindicationsforpregnancy,whicharedisplayedasspikesonthescreen:1)
Patternrecognitionofagroupofreflectionsfromthefetus(es),2)Onespike,areflectionfrom
theinterfacebetweenamnioticfluidandthefarsideoftheintrauterinewall.3)Areflection
fromthethickenedwalloftheuterus(incattle).

Connectthecabletotheinstrumentandtheproperprobetothecable.

Note:ThatStandardprobehavingabluebodyshouldbeusedforallanimalsexcept
forveryearlypregnancytestingoncows,mares,andotherlargemammals.The
optionalDeepprobe—largerandhavingablackbody—shouldbeusedforveryearly
pregnancytestingincows,maresandotherlargemammals.TheStandardprobecan
beusedwithmostlargemammalsafter90daysgestation.TheStandardprobecanbe
usedwithlargemammalsattheearlytimes,butgettinggoodindicationsis
problematicandinanycasemoredifficult.
©2007RencoCorporation  Page3of13

한국대리점: 길우트레이딩 02)2636-0009 팩스02)2636-4753 서울시 영등포구 양평동 3가 40-2 에이스테크노타워703호 [email protected] www.gilwoo.co.kr

PREG‐ALERTPRO®INSTRUCTIONMANUALRev.27/1/2007
Theprobemustmakegoodcontactwiththeskin—airbubbleswillblockultrasound.A
couplingfluidsuchascookingoil,mustbeusedtoenablegoodcontact.Applythecoupling
fluidliberallytotheskin,probeorboth.Presstheprobetotheskin,usingarotating‐rocking
motion,suchthatallairbubblesareremoved.Thenumberoneprobleminusingultrasound
instrumentsislackofgoodskincontact.Werepeat,Ultrasoundwillnotpassthroughair
bubbles!

USINGTHEPREG‐ALERTPRO
Inordertousetheinstrumentefficientlyandwiththebestresults,itmustbeunderstood
thatthisinstrumentisatoolandlikemosttools,skillisbestobtainedbyintelligentpractice.
Theinstrumenthelpsyoubyprovidingacomputerenhanceddisplaywherespurious
informationislargelyeliminated,buttheusermustbetheonetodecidethetruemeaning
ofthedisplayedinformation.

Backfatandloinmeasurementareeasiertolearnthanpregnancy.Asregardspregnancy
detection,boththeanimaltypeanddaysafterconceptionatwhichtestingisdoneare
determiningfactorrelatedtoeaseofuseandskillrequirement.Toillustrate,ontheone
hand,swineat30daysareperhapstheeasiest,whileontheotherhand,cattleatveryearly
timesaremoredifficult.

Fatmeasurement:SelecttheFATscreen.Mostbackfattestinginswineforexampleisdone
overthelastriband40‐60mmoffthecenterline(calledthe“P2”testsite).Thistestsiteis
alsoimportantformakingthestandardloinmeasurement.Sometimes,measurementsat
multiplesitesinthisregionareused.

Loinmusclemeasurementsincludeskinandbackfat,sotomeasurejustthelointhickness,
firstdeterminebackfatthickness,usingthebackfatscreenandthenmeasuretheloinand
subtractthebackfatreading.OfthetwoLOINscreens,selecttheonewiththerange
appropriateforthetotalthicknessinvolved.Internaladjustmentsaremadetothespeedof
soundfactortominimizetheeffectofthedifferencebetweenfatandmuscletissue.

Pregnancyindications:
EachPregnancyscreenexcepttheOTHERscreen,hasablackbaratthebottom.Thebar
indicatestheproximatedistancetothenearandfarpointsoftheuterusatthenumberof
daysindicated.Itisimportanttounderstandthatalthoughthepregnancyscreensnamed
Pig,SheepandCowhavebeentailoredforthespecificanimal,thescreencanbeusedfor
anyanimalwiththeproximatebodydimensionsofthenamedanimal.Afourthpregnancy
screen,calledOTHER,canbeusedforallsmallandmediummammals,butnotforlarge
mammals.Inadditionwhentestinglargemammalsatveryearlytimes,e.g.cows,mares,
bison,etc.,theoptionalDeepprobeshouldbeused.

©2007RencoCorporation  Page4of13

한국대리점: 길우트레이딩 02)2636-0009 팩스02)2636-4753 서울시 영등포구 양평동 3가 40-2 에이스테크노타워703호 [email protected] www.gilwoo.co.kr

PREG‐ALERTPRO®INSTRUCTIONMANUALRev.27/1/2007

Table1:Approximatedistancestonearandfarpointsoftheuterusforvarious
animalsatthegestationtimesshown.

Distances DaysGestation
Pigs&Goats 2‐8in(50‐200mm) 28‐30
Cattle  4‐13.5in(100‐338mm)25‐30
Alpacas 1.6‐6in(40‐150mm) 12‐25
Sheep  1.6‐6in(40‐150mm) 28‐30
Horses  4.7‐13.5in(120‐338mm)14‐18
Llamas  2‐6in(50‐150mm) 12‐30
MiniatureHorses2‐8in(60‐200mm) 14‐18
MiniatureCattle4.7‐8in(120‐200mm) 25‐30

Theabovetableisonlyaguidethepurposeofwhichistogivetheusersomefeelforthe
distancesinvolved.Inuse,theimportantthingtolookforisastronghighspikeorgroupof
spikesintheareaofinterestasdisplayedonthescreen.

Pregnancycanbedeterminedeitherbysensingthefetusortheinterfacebetweenthe
amnioticfluidandthefarsideoftheintrauterinewall.Whendetectingthefetus(es),one
looksfor1ormorespikesnearthecenteroftherange.Whenlookingfortheamnioticfluid
interfaceatthefarsideoftheuterus,onelooksforonespikeatthefarendofrange.In
someanimals(cowsandmares)theuterinewallthickensveryearlyinpregnancyandthe
instrumentwilldisplayaspikefromthenearuterinewall(leftendofthebar)inthosecases.
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©2007RencoCorporation  Page5of13
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PREG‐ALERTPRO®INSTRUCTIONMANUALRev.27/1/2007
DISPLAYS
(Note:Thefinerulerdivisionsarenotshowninthedisplaysbelow.TheSENSsettingisfor
illustrationonly.)
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Aboveareseveralscreenshotsillustratingthetypicaldisplaysforvariousfunctions.Inthe
Pregnancy:OTHERscreen,thedottedverticallineistheverticalmarker,whichtheusercan
settoindicatethedistanceofanyspikefromtheskinsurface.Theheavysolidverticalline
isrepresentativeoftheactualreading.Thismightinfactbemultiplecloselyspacedspikes.
IntheCOWpregnancyscreen,theverticalmarkerisshown(forillustrationpurposes)near
thespikereadingattheleftendoftheheavysolidbarbeneaththegraticule.Ifthetestis
attemptingtoidentifyveryearlypregnancy,thensincethereadingisattheleftendofthe
blackbar,itwouldprobablybeindicatingathickeneduterinewall.(TheDeepprobewould
beusedforthis.)Inactualuse,iftheuserwantedtoknowtheactualdistancebeing
measured,thespikewouldbeheldusingaHOLDkey(thelegend“HOLD”isdisplayed)and
DEPTHkeyswouldthenbeusedtosuperimposetheverticalmarkeroverthereadingand
thedistancefromskintospikewouldbedisplayed.
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TheLOIN(highrange)screenshownaboveindicatesareadingat150mm.Thevertical
markerpreventsanythingbeyondabout165mmfrombeingdisplayed.Useofthemarkeris
optional.PressingandholdingtheOPTIONkeymomentarilywhileintheLOIN(highrange)
©2007RencoCorporation  Page6of13
SENS-2
PREG
HOLD
BAT
OTHER
100 M
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PREGNANCY:SCREENFOROTHER
SMALL‐MEDIUMMAMMALS
한국대리점: 길우트레이딩 02)2636-0009 팩스02)2636-4753 서울시 영등포구 양평동 3가 40-2 에이스테크노타워703호 [email protected] www.gilwoo.co.kr

PREG‐ALERTPRO®INSTRUCTIONMANUALRev.27/1/2007
display,willswitchtoasecondLOIN(lowrange)screen,whichprovidingarangeof50‐
140mm.(PressingtheOPTIONkeyagainswitchestothe90‐180mmdisplay.)
(MeasurementswouldappearininchesiftheOPTIONkeyhadbeenusedtoselectinches,
whentheFATscreenwasdisplayed.)
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TESTINGANDTESTSITES
Asaninstrumentmanufacturer,weareprimarilyinstrumentpeopleandnotanimalpeople.
Whilewehavedonesomedevelopment,muchofthesiteinformationprovidedbelowis
takenfromtheliterature.
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ThePreg‐AlertProcanbeusedwithsomanymammalsthatitisimpracticaltoprovide
detailedtestinginformationforallofthem.Therefore,wewillshowjustafewsothatthe
operatorwillhaveanidea,pictorially,ofthegeneralprocedure.Pregnancytestingshould
bestartedontherightsidewithmostmammals,butwithalpacas,andmares,testing
shouldbestartedontheleftside.Ifnopregnancyisdetected,thentrytheothersideinall
cases,butbecautiousoftheresultsinruminateanimals,wheretherumenmightinterfere.
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FatandLointestingshouldbedoneatwhatisconventionallycalledthe“P2””site,overthe
10thriband6.5cm(2‐3in.)offthebackbone.(Someliteraturecallsoutthe12thrib,butat
leastoneresearcherclaimsthatthe10thribproducesamoreaccurateresultbecausethe
fatissmoother.Weleavethisdecisionuptotheoperator.)Manymakemeasurementson
boththerightandtheleftsideofthebackbone.Inthispreliminarywriting,wehaveshown
onepictureofthetestsite.Thiswillbeamplifiedinfuturemanuals.Notehowever,that
“attheendoftheday”,thereisno“gold”standardindeterminingtheaccuracyoffatand
loinmeasurement.Inthemeanwhile,morecompleteinformationwillbefoundinthePreg‐
Alert®Operator’sManual©onourwebsiteatwww.rencocorp.com
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©2007RencoCorporation  Page7of13
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한국대리점: 길우트레이딩 02)2636-0009 팩스02)2636-4753 서울시 영등포구 양평동 3가 40-2 에이스테크노타워703호 [email protected] www.gilwoo.co.kr

PREG‐ALERTPRO®INSTRUCTIONMANUALRev.27/1/2007
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FatandLoinMeasurementsitesforSwine
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PregnancyTestSiteforSwine
BeginTestingswineonrightsideandifnotpregnant,tryagainontheleftside.Testingcan
beginat18days,testingeverydayuntilpositivereadingsareobtained2daysinarow.
Accuracyisgreatestat30days.
©2007RencoCorporation  Page8of13
3FATLAYERS
LOIN
한국대리점: 길우트레이딩 02)2636-0009 팩스02)2636-4753 서울시 영등포구 양평동 3가 40-2 에이스테크노타워703호 [email protected] www.gilwoo.co.kr

PREG‐ALERTPRO®INSTRUCTIONMANUALRev.27/1/2007
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PregnancyTestSiteforSheep
Topfigureillustratestestsiteforveryearlycheckingat25days.Bottomfigureillustrates
useat35+days.Testonleftsideifnotsuccessful.Itmaybenecessarytoremovewooland
dirtfromtestsite.
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PregnancyTestSiteforAlpacas
BegintestingalpacasontheLEFTsideatabout45days.Testontherightsideifnot
successful.After60days,testonrightsidefirst.
©2007RencoCorporation  Page9of13
한국대리점: 길우트레이딩 02)2636-0009 팩스02)2636-4753 서울시 영등포구 양평동 3가 40-2 에이스테크노타워703호 [email protected] www.gilwoo.co.kr

PREG‐ALERTPRO®INSTRUCTIONMANUALRev.27/1/2007
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PregnancyTestSiteforCows:SideandTopViews
Refertothethreeviewsofthecow:Forearlypregnancystartingatabout22days,youwill
lookforthethickeneduterinewall,ratherthanamnioticfluidorthefetus.AimtheDeep
probeasshownontherightsideintheupperregionoftheoutlineintheparalumbarfossa
atriangularregionforwardofthehookbone,justbehindtheribs,andabout8inches
(20cm)downfromthebackbone.Locatethelowestspotinthefossaintowhichtheprobe
willfitcomfortablybypressinginwardwithyourfist.Placetheprobefirmlyagainsttheskin
andpointithalfwaybetweenthehookboneandpinbonepointingitslightlydownward.
Youdon’tneedtomovetheprobeinordertoscantheuterus,justrockandtilt.
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PregnancyTestSiteforCows:Backview
©2007RencoCorporation  Page10of13
한국대리점: 길우트레이딩 02)2636-0009 팩스02)2636-4753 서울시 영등포구 양평동 3가 40-2 에이스테크노타워703호 [email protected] www.gilwoo.co.kr