GE BK MEDICAL 8838 Series User manual

For Professional Users Only
English
BB1857-H
April-2023
User Guide
Type 8838
3DART Transducer

BK MEDICAL
Mileparken 34
2730 Herlev
Denmark
Tel.:[phone]/Fax:[phone]
www.bkmedical.com
Email: [e-mail]
The serial number of a BK Medical product contains information about the year of manufacture.
Toobtain the date of manufacture of a product, please contact your BK Medical representative or write
to us at the email address above, including the product’s serial number (SN number).
BK Medical Customer Satisfaction
Input from our customers helps us improve our products and services. As part of our customer
satisfaction program, we contact a sample of our customers a few months after they receive their orders.
If you receive an email message from us asking for your feedback, we hope you will be willing to
answer some questions about your experience buyin g and using our products. Your opinions are
important to us. You are of course always welcome to contact us via your BK Medical representative or
by contacting us directly.
If you have comments about the user documentation, please write to us at the email address above.
Wewould like to hear from you.
© 2023 BK Medical
Information in this document may be subject to change without notice.

3
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Indications for use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Imaging Plane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Service and Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Caring for the Transducer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Cleaning and Disinfection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Starting Imaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Connecting the Transducer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Changing Frequency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Using a Transducer Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Using the Transducer Control Button. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Changing Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Endovaginal, Anorectal, and Transrectal Imaging with Type 8838 . . . . . . . . . . . 9
Rotating the 2D Imaging Plane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3D Imaging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Cleaning after Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
English source version
BB1857-H

4

8838 User Guide (BB1857-H)
Introduction 5
Introduction
This is the user guide for 3D ART Transducer Type 8838 and must be used together
with Care and Cleaning which contains important safety information.
Intended use
The transducer is intended for diagnostic ultrasound imaging or fluid flow analysis
of the human body.
Indications for use
8838 is suitable for 3D transrectal prostate and transvaginal imaging. It is also
suitable for contrast imaging
1
.
Patient Population
The patient population is adults.
Figure 1. 3DART Transducer Type 8838.
Imaging Plane
The transducer contains a linear array of ultrasound elements that rotates covering an
adjustable angle up to 360º to produce a 3D image, thus giving a better orientation
when viewing an area of interest. No moving parts contact human tissue.
Figure 2. 2D imaging plane.
Physicians
only
Caution Rx-c1
United States Federal law restricts this device to sale by or on the order of a physician.
1. ProFocus only
The default position for the
imaging plane is opposite the
button on the handle

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April-2023 8838 User Guide (BB1857-H)
Figure 3. 3D imaging plane.
General Information
Product specifications for this transducer can be found in the Product Data sheet that
accompanies this user guide.
Acoustic output data and data about EMC (electromagnetic compatibility) for this
transducer are in Technical Data (BZ2100) that accompanies this user guide. A full
explanation of acoustic output data is given in your system user guide.
Service and Repair
WARNING GS-w2
If at any time the system malfunctions, or the image is severely distorted or degraded, or you
suspect in any way that the system is not functioning correctly:
• Remove all transducers from contact with the patient.
• Turn off the system. Unplug the system from the wall and make sure it cannot be used
until it has been checked.
• Do not try to repair the system yourself.
• Contact your BK service representative or hospital technician.
WARNING AO-w1
To avoid tissue damage, always keep the exposure level (the acoustic output level and the
exposure time) as low as possible.
WARNING SR-w1
Service and repair of BK electromedical equipment must be carried out only by the
manufacturer or its authorized representatives. BK Medical reserves the right to disclaim all
responsibility, including but not limited to responsibility for the operating safety, reliability
and performance of equipment serviced or repaired by other parties. After service or repairs
have been carried out, a qualified electrician or hospital technician should verify the safety
of all equipment.

8838 User Guide (BB1857-H)
Cleaning and Disinfection 7
Caring for the Transducer
The transducer may be damaged during use or processing, so it must be checked
before use for cracks or irregularities in the surface. It should also be checked
thoroughly once a month following the procedure in Care and Cleaning .
Cleaning and Disinfection
To ensure the best results when using BK Medical equipment, it is important to
maintain a strict cleaning routine.
Full details of cleaning and disinfection procedures can be found in Care and
Cleaning that accompanies this user guide. A list of disinfectants and disinfection
methods that the transducer can withstand are listed in the Product Data sheet.
Sterile covers are available. See the Product Data sheet for more information.
Starting Imaging
All equipment must be cleaned and disinfected before use.
Connecting the Transducer
WARNING Reproc-w2
Users of this equipment have an obligation and responsibility to provide the highest
possible degree of infection control to patients, co-workers and themselves. The
instructions in this book are meant as a guide. To avoid cross contamination, follow all
infection control policies (including for reprocessing, packing and storage) for personnel
and equipment that have been established for your office, department, or hospital.
WARNING T-w5
To prevent electrical shock and damage to the transducer, the connector pins in the
transducer plug must always be completely dry before you connect to a system.
WARNING Pos-w1
Before starting an examination, use the ultrasound image to verify that the orientation of
the 2D imaging plane is as indicated on the monitor. If the true imaging plane does not
match the displayed orientation, images may give incorrect information about the anatomy.
WARNING GS-w4a
It is essential for the patient’s safety that only the correct equipment is used.
• Do not use other manufacturers’ transducers with BK ultrasound systems.
• Do not use BK transducers with other manufacturers’ systems.
• Do not use unauthorized combinations of transducers and needle guides.

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April-2023 8838 User Guide (BB1857-H)
The transducer is connected to the system using both the array Transducer Socket and
the mechanical Transducer Socket.
To connect the array Transducer Socket
1 Insert transducer plug into socket with locking lever in 3 o’clock position.
2 Turn locking lever on transducer plug clockwise to 6 o’clock position.
To connect the mechanical Transducer Socket
1 Align red mark on plug with red dot on transducer socket.
2 Insert plug in socket.
When connected, the transducer complies with Type B requirements of EN60601-1
(IEC 60601-1).
Changing Frequency
The Multi-Frequency Imaging (MFI) facility enables you to select the imaging
frequency. See the applicable system user guide for instructions. The selected
frequency is displayed at the top of the screen.
Using a Transducer Cover
You must use a transducer cover. See the Product Data sheet for a list of available
transducer covers, including sterile covers.
Apply imaging gel or other water-soluble agent inside and outside the cover to create
good acoustic contact.
To put on the cover:
1 Apply gel to the tip of the transducer so that it covers the entire imaging surface
(most of the black part of the transducer). You can also put imaging gel inside
the tip of the cover before you put the cover over the transducer.
Caution BK-c4
The system must not be imaging when you connect the transducer. The image must be
frozen or the system must be turned off. Do not unfreeze the image before you have
connected the transducer to
both sockets. Otherwise the imaging array in the
transducer can be parked in an incorrect position, which can lead to incorrect 3D
representations of the regions being imaged.
WARNING BK-w13
Do not connect two 8838 transducers simultaneously. The system will produce an
incorrect 3D volume with only one identical image repeated throughout the entire
volume.
WARNING TC-w1
Some transducer covers can contain latex. Because of reports of severe allergic reactions to
medical devices containing latex (natural rubber), the FDA advises health-care professionals
to identify their latex-sensitive patients and be prepared to treat allergic reactions promptly.

8838 User Guide (BB1857-H)
Endovaginal, Anorectal, and Transrectal Imaging with Type 8838 9
Make sure that there is enough imaging gel to cover the entire front end of the
transducer (the black part of the transducer). This prevents image artifacts
caused by air bubbles.
2 Pull the transducer cover over the transducer.
3 Before imaging, apply a small amount of gel to the outside of the transducer
cover to create good acoustic contact between the patient and the transducer.
4 Re-apply the gel frequently to ensure good screen images.
Using the Transducer Control Button
The control button on the transducer controls the imaging.
Press the button to
Start or Stop imaging (freeze frame).
The transducer makes a “beep” sound each time you press the button.
The button function can be customized. For more information, see the user guide for
the system and “3D Imaging” on page 11.
Changing Orientation
To change the orientation of the image on the monitor, refer to the applicable system
user guide for instructions.
To change the angle of the 2D imaging plane, see “Rotating the 2D Imaging Plane”
on page 10.
Endovaginal, Anorectal, and Transrectal Imaging with Type 8838
Both 2D and 3D imaging in Type 8838 is on the sagittal plane as shown in Figure 2
and Figure 3.
NOTE: The default position for the imaging plane is opposite the button on the
handle. All linear images start with the linear array in this default position where it
can display live, 2D images.
Caution T-c3
Use only water-based gel (sterile if you are using a sterile transducer cover). Products
containing parabens, petroleum, or mineral oils may harm the transducer or transducer
cover.
WARNING Colo-w1
Do not use excessive force during insertion. Do not make excessive lateral movements
during or after insertion. Risk of injury or tissue damage to the patient could occur under
certain circumstances. A digital palpation of the rectum may need to be carried out by a
clinician prior to insertion or use of the probe as a precautionary measure.

10
April-2023 8838 User Guide (BB1857-H)
Rotating the 2D Imaging Plane
Typically, you use a 2D imaging to locate the area where you want a 3D image.You
can rotate the 2D imaging plane from the system or the remote control. This allows
you to locate the area where you want to image without moving the transducer inside
the patient.
Rotating the 2D imaging plane does not change the default start position for 3D
imaging or the chosen angle or extent of 3D imaging.
NOTE: You cannot rotate the 2D imaging plane if the image is frozen or in split screen
mode.
Rotation
symbol
A rotation symbol shows the position of the array when imaging in 2D. The line
inside the circle of the icon represents the position of the transducer array.
Note that the default position of the imaging plane is opposite the transducer button
(see Figure 2).
Figure 4. Rotation symbol on the flex Focus 1202. Not available on the 2202 UltraView system.
You can select and drag the rotation symbol to a new position on the screen using the
trackball and
Select keys on the system keyboard. The rotation symbol disappears
when you start a 3D acquisition.
There are two ways you can rotate the imaging plane:
1 Click the rotation symbol on the monitor with the Select key and press the +/-
keys on the keyboard. You can also click +/- on the actual rotation symbol. Press
or click
+ to rotate clockwise, press or click - to rotate anticlockwise.
NOTE: If you want to use the +/- keys on the keyboard to rotate the imaging plane you
must first click the rotation symbol (see Figure 4).
Or:
2 Click the screen keys Rotate - or Rotate + .
Select key

8838 User Guide (BB1857-H)
Endovaginal, Anorectal, and Transrectal Imaging with Type 8838 11
Figure 5. Rotation screen keys on the flex Focus 1202. On the 2202 UltraView system you have
to assign rotation keys to the user-definable keys on the the keyboard. For more
information on customizing the 2202 UIltraView keyboard, see the ‘Setting Up and
Customizing Your System’ chapter in the Pro Focus 2202 Extended User Guide
(BB1279).
Alternatively, you can rotate the imaging plane using the remote control. See the
applicable system user guide for further information about the remote control and its
functions.
Each key press/click rotates the imaging plane by 3°. Hold down the key to rotate the
plane quicker. The imaging plane can be rotated 180° in either direction from the
default position, see Figure 2.
When you switch to 3D, the imaging plane moves back to its default position. You
should always check the position of the imaging plane to make sure that it is in the
desired postition.
3D Imaging
NOTE: See the advanced system user guide for more information about 3D imaging.
Typically, you use the 2D imaging to locate the area where you want a 3D image.
When the transducer is in the desired location, begin the 3D imaging by pressing the
3D button on the system. From the system, you can also customize the transducer
control button.
When you begin the 3D imaging, you define the area for your image on a scale of 10°
to 360° in the Extent parameter on the system screen. When you choose an imaging
angle, the image is centered on the default position such that each half of the image
sector is on either side.
During an imaging, the images are captured at the angle and frame rate defined by
the user on the system. When the desired imaging is completed, the array moves back
to the default position.
Note that t he transducer and the patient must remain still during 3D imaging to obtain
accurate images.

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April-2023 8838 User Guide (BB1857-H)
360° Images and the Stitch Angle
If you set the Extent parameter for a 3D image to 360°, a stitch angle appears on the
image. (The stitch angle parameter is only active when Extent is set to 360°.)
Stitch angle vs
stitch line
The stitch angle is a parameter that you set on the screen. The stitch line is the line
that is in the 3D image, reflecting the setting of the stitch angle parameter.
By default, the stitch line is located at the bottom of the cube, which is normally away
from the area of interest; at the bottom of the cube (opposite to the default position).
To make sure that the stitch line in the screen does not interfere with what you want
to see, check the cube after the 3D imaging. If necessary, rotate the stitch line to a
new position.
Adjusting the
stitch angle
To adjust the stitch angle – on Flex Focus 1202:
1 Select the appropriate pro package for your imaging session and click Stitch
in the 3D General tab.
In the default center position , the stitch angle is opposite the array’s default
position; that is, towards the transducer button (see Figure 6).
Figure 6. The stitch angle’s default position.
2 Select the position you want by choosing the icon that indicates the desired
position – away from the area of interest.
A stitch angle setting applies only for a particular imaging session.
When you start the imaging, the control panel is locked to avoid accidental
interruption of the imaging process. A progress bar is displayed at the top of the
image as a graphic image and as the number of seconds remaining to show how much
time is left to complete the image.
To adjust the stitch angle – on Pro Focus 2202 UltraView:
1 Select the appropriate pro package for your imaging session and click Stitch
in the left menu bar.
In the default center position , the stitch angle is opposite the array’s default
position; that is, towards the transducer button (see Figure 6).
2 Select the position you want by adjusting the slider bar that indicates the desired
position – away from the area of interest.
A stitch angle setting applies only for a particular imaging session.
The stitch angle’s default center position
is towards the transducer button

8838 User Guide (BB1857-H)
Cleaning after Use 13
When you start the imaging, the control panel is locked to avoid accidental
interruption of the imaging process. A progress bar is displayed at the top of the
image as a graphic image and as the number of seconds remaining to show how much
time is left to complete the image.
The Stitch Line
The 3D imaging must be completed before you can begin to analyze the resulting
data in any direction. The stitch line is only shown in the final 3D image result.
Hide or show
stitch line
To hide the stitch line – on Flex Focus 1202:
1 On the 3D General tab, click Stitch line to hide or show the stitch line.
See the Flex Focus Advanced User Guide for more information about how to
assign screen keys.
To hide the stitch line – on Pro Focus 2202 UltraView:
1 On the right side, click Layout .
2 In the drop-down menu, click Stitch line to hide or show the stitch line.
3D Mover
The 3D mover is automatically selected, so you cannot change this parameter on the
system. Untracked 3D acquisition, available with some transducers, is not an option
for this transducer.
Select the Mover parameter on the screen. There are two options:
• IP8838 – Moves the internal array while you hold the transducer still.
• Untr. Fan (Untracked Fan) – Lets you freely move the transducer to acquire
images. See the system user guide for the untracked freehand warning
information, as well as the extended system user guide for image issues
concerning untracked freehand acquisition.
Cleaning after Use
Use a suitable brush to make sure that biological material and gel are removed from
all channels and grooves. See Care and Cleaning for cleaning instructions.
WARNING Reproc-w3
Immediately after use, you must pre-clean the device until visually clean (including
device lumens if existing). Conduct the thorough cleaning process as soon as
possible after use in order to prevent bioburden drying on the surface. Dried
bioburden can lead to inefficient cleaning, disinfection and sterilization, causing a
risk of cross-contamination.
If pre- and thorough cleaning cannot be done immediately, keep the device moist until
cleaning.

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April-2023 8838 User Guide (BB1857-H)
Disposal
When the transducer is scrapped at the end of its life, national rules for the relevant
material in each individual land must be followed. Within the EU, when you discard
the transducer, you must send it to appropriate facilities for recovery and recycling.
See the applicable system user guide for further details.
WARNING D-w1
For disposal of contaminated items such as transducer covers or needle guides or other
disposable items, follow disposal control policies established for your office, department, or
hospital.