LORECa Hearing Instrument PKA87 User manual

PKA 87
PC Based
Screening
Audiometer
LORECa Hearing
Instrument
March,2014
[USER MANUAL
]
PKA87 & PKA87/B User manual

P K A 8 7 O p e r a t i o n a l M a n u a l
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P K A 8 7 O p e r a t i o n a l M a n u a l
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Table of Contents
Table of Contents .....................................................................................................2
Introduction ...............................................................................................................3
-Intended Use ..................................................................................................3
-Precautions .....................................................................................................3
-Electrical Installation ....................................................................4
System Requirements 5
Installation Steps6
-....6
-GUI Installation ..10
Software Description ...14
-.15
-Otoscopy 17
-Primary Tests .20
-PTA 23
-Report ..29
Common Setting ...30
-File Menu 30
-Option Menu ...32
-Shortcut keys .35
Technical specifications .36
Unpacking / Inspection ..37
-General maintenance.37
-Operating temperature 39
-Care and maintenance39
Device uninstall steps40
Trouble shooting41
Reporting imperfection41

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Introduction
Intended Use
The PKA87 screening audiometer is designed to be a device for screening for
hearing loss. Output and specificity of this type of device are based on the test
characteristics defined by the user, and may vary depending on environmental and
operating conditions. The screening for hearing loss using this kind of audiometer
depends on the interactiallow
for ignoring other contra indications. A full audiologic evaluation should be
administered if concerns about hearing sensitivity persist
The PKA87 audiometer is intended to be used by an audiologist, hearing healthcare
professionals, or trained technicians in a quiet environment. It is recommended that
the instrument be operated within an ambient temperature range of 15-35 degree
Celsius (59-95 degrees Fahrenheit)
This manual describes the Diagnostic software used for PC Audiometry.
The Software allows users to working and display, store and print audiometric data.
Precautions
Notice - Be sure to use only stimulation intensities, which will be acceptable for the
patient.
Notice - The transducers (headphones, bone conductor, etc.) supplied with the
instrument are calibrated to this instrument - exchange of transducers require a
recalibration.
Notice - It is recommended that parts which are in direct contact with the patient
(e.g. earphone cushions) are subjected to standard disinfecting procedure between
patients. This includes physically cleaning and use of a recognised disinfectant.

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Individual manufacturer's instruction should be followed for use of this disinfecting
agent to provide an appropriated level of cleanliness
Notice - Never insert or in any way use the insert headset without a new clean non
defect test tip.
Notice - Do not site the PKA87 next to a radiator or any other heat source.
Notice - In operation the instrument should not be subject to temperatures below
15C° or above 35C°.
Notice - Although the instrument fulfils the relevant EMC requirements precautions
should be taken to avoid unnecessary exposure to electromagnetic fields, e.g. from
mobile phones etc. If the device is used adjacent to other equipment it must be
observed that no mutual disturbance appears.
Electrical Installation
Socket for power
supply cable
Socket for patient
response switch
Socket for transducers
(Right & Left)
Socket for USB
cable

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System Requirements
Operating systems support:
Windows® XP SP2 and Vista.
Windows® 7 ,32 Bit
PKA87/B and PKA87 uses a direct USB connection (it has built-in USB)
Test measurement data support:
Audiometric data: Only Air Conduction. (BC and FF are Optional)
On-line/PC-operated and Patient/Session Saving in PC.

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Installation Steps
Step 1: Device Initialization
Step 2: GUI Installation
Device Initialization
Notice: Please check for System compatibility
System type: 32-bit Operating System
1-1- Plug in Device to the AC socket.
1-2- Connect the Instrument to the PC with a USB cable, the following window
should appear.

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1-3- Select Device and Printers”from Start”menu.
1-4- Double Click on the PKA87 Icon.
1-5- Select Hardware”tab and Push the properties”Button.
>>>>
1-6- Select Change Settings”and enter to the Driver”Tab.

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1-7- Push Update Driver”button
1-8- Select Browse my computer for driver software”choice.

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1-9- Enter address of Drivers”from CD drive.
1-10- Please wait a moment.
1-11- Update driver is completed.
Close the window.
1-12- Then processed to system setup described in the next chapter.

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GUI Installation
Installation of Graphical User Interface (GUI):
To install Software simply insert the installation CD run the installation file (if it does
not start automatically) and following the installation:
2-1- Welcome Dialog:
Select Installation Directory.
Press Next Button.

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2-2- Confirm Installation:
Press Next Button.
2-3- Press Setup Button
Wait for installation to complete

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2-4- Ok
2-5- PKA87 C. Open this folder and select
PKA.exe”file.

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2-6- For easy to access, Create shortcut on the Desktop.
2-7- PKA87 Shortcut

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Software Description
3-1 Double Click on PKA87 Shortcut
3-2 OK the window
3-3 PKA main window is open
PKA window have 5 tabs for different objects.
Case History
Otoscopy
Primary test
PTA
Report

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3-4
Practitioner typically asks questions to obtain the following information about the
patient and then Store:
The Case history, especially historically of a patient is information gained by a
Audiologist by asking specific questions, either of the patient or of other people who
know the person and can give suitable information, with the aim of obtaining
information useful in formulating a diagnosis and providing medical care to the
patient. The medically relevant complaints reported by the patient or others familiar
with the patient are referred to as symptoms, in contrast with clinical signs, which are
ascertained by direct examination on the part of medical personnel.
Case History
Otoscopy
Primary test
PTA
Report

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Process
A practitioner typically asks questions to obtain the following information about the
patient:
Identification and demographics: name, age, ...
The chief complaint - the major health problem or concern, and its time.
History of the present illness - details about the complaints, enumerated in the
chief complaint.
Past medical history (including major illnesses, any previous surgery), any
current ongoing illness, e.g. diabetes).
Family diseases - especially those relevant to the patient's chief complaint.
Childhood diseases - this is very important in pediatrics.
Social history (medicine) - including living arrangements, occupation, number
of children, drug use (including tobacco, alcohol, other Ototoxic drug use),
recent foreign travel, and exposure to environmental pathogens.
Conclusion & closure

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3-5
Evaluation of Ear with a Otoscope
The otoscopic exam is performed by gently pulling the auricle upward and backward.
In children, the auricle should be pulled downward and backward. This process will
move the acoustic meatus in line with the canal. Hold the otoscope like a pen/pencil
and use the little finger area as a fulcrum. This prevents injury should the patient turn
suddenly.
Inspect the external auditory canal.
Evaluate tympanic membrane
oNote the color (red, white, yellow) and translucency (transparent,
opaque) and position (retracted, neutral or bulging) of the drum
Case History
Otoscopy
Primary test
PTA
Report

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oIdentify the pars tensa with its cone of light, the handle and short
process of malleus, and the anterior and posterior folds of the pars
flaccida and position of the malleus handle..
Examination of the ear canal and tympanic membrane
The ear canal and tympanic membrane should then be examined. This may
not be possible in all cases, for example, due to the absence of an ear canal, due to
the presence of bandaging or when doing so might cause pain or undue discomfort.
Particular care should be taken if the subject has recently undergone ear surgery,
might not remain still during examination or is anxious about
undergoing the procedure.
The ear canal and tympanic membrane should be examined using a device that
provides appropriate magnification and illumination, has been produced for the
purpose of ear examination and meets relevant safety standards, referred to
ploys a separate viewing screen
instead of a built-in viewfinder, such as a computer monitor, will be referred to as a

operational and that any relevant safety checks have been conducted.
The examiner shall adopt a stable position when examining the ear using an
otoscope. This involves the examiner taking necessary precautions to minimize the
risk of harming the subject, or her/himself, through the loss of balance for example.
For example, the examiner should not stand bent-over.
To start, the examiner shall select an appropriately sized speculum, based on the
initial examination of the entrance to the ear canal and the need to obtain adequate
illumination. This speculum shall then be securely, and hygienically, attached to the
otoscope. The otoscope shall be held by the examiner in such a way as to enable
secure bracinorder to avoid injuring the ear if, for
instance, the subject makes a sudden movement. The upper rows of Figures
illustrate examples of safe practice for otoscope.
The examiner shall then carefully guide the tip of the speculum (attached to the
otoscope) into the ear canal while observing the ear (not necessarily through the
viewfinder of the otoscope).

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The examination of the ear canal and tympanic membrane shall be conducted
carefully and safely, taking into account the size, shape, orientation and condition of
the ear canal and the presence of wax or foreign bodies. It shall also take into
account that the bony portion of the ear canal is especially sensitive and its
surrounding skin vulnerable to trauma.
On completing the examination, the otoscope (including the speculum) shall be
removed from the ear canal.
Recording, reporting and managing the findings
The examiner should note her/his observations immediately after carrying out the
procedure. Depending on the circumstances, it might also be appropriate for the
examiner to make a judgement as to the status of an ear, such as the presence
of an abnormality or disease. It might also be necessary for the examiner to take
further action, such as a referral for medical attention, in consultation with, and
with the consent of, the subject.
If a printed or electronic copy of images is obtained during examination, these
should be stored together with the identification details of both the subject and
examiner as well as the date and time of the examination.