INTERSON SP-L01 Simpli Series System Instructions
- June 11, 2024
- INTERSON
Table of Contents
- SP-L01 Simpli Series System
- Ultrasound Probes
- Getting Started
- Appendix A – Interson Probe System Specifications
- Appendix B – Interson Probes and Their Applications
- Appendix C – Summary of the Acoustic Quantities
- Appendix D – Achieving ALARA
- Appendix E – Interson Ultrasound Probes – Indications for Use
- Appendix F – EMC Information
- Appendix G – Maximum Probe Temperature
- Appendix H – Interson Customer Warranty
- Documents / Resources
Ultrasound Imaging System
Exclusively for the ARROW® VPS
Rhythm® DLX Device
Instructions For Use
SP-L01 Simpli Series System
Equipment Manufacturer
Interson Corporation
7150 Koll Center Parkway
Pleasanton, CA 94566 USA
Phone: 925.462.4948
Fax: 925.462.4833
Email: support@interson.com
Website: www.interson.com| EC
Representative
MedNet EC-REP GmbH
Borkstraße 10
48163 Münster
Germany
Phone: +49 251 32266-61
Fax: +49 251 32266-22
---|---
2797
Information in this document is subject to change without notice.
These Instructions For Use are applicable to the following Interson ultrasound
probe:
SP-L01
© Copyright Interson Corporation. All rights reserved. No part of this manual
or software may be reproduced in any form or by any means, electronic or
mechanical, including but not limited to photocopying, recording, or by any
information storage and retrieval systems, without the express written consent
of Interson Corporation.
Windows is a trademark of Microsoft Corporation
VPS Rhythm® DLX is a trademark of Teleflex Corporation
Introduction
Congratulations on your purchase of the Interson Simpli Series™ Ultrasound
Probe System exclusively for use with the Arrow® VPS Rhythm® DLX Device. The
VPS Rhythm® DLX Device ultrasound module consists of a plug-in ultrasound
probe optimized for vascular access use. The ultrasound module can be used
alone for a variety of patient assessments, or in conjunction with ECG
technology to assess a patient’s vasculature prior to CVAD tip placement
allowing ultrasound imaging of the vasculature and other tissue. The primary
use of ultrasound is for facilitation of vessel puncture to avoid
complications while gaining vessel access.
Please review this user manual before you begin imaging. Contact Interson or
your sales representative if you have any questions.
Note: The sale of this item is subjected to regulation by the U.S. Food
and Drug Administration (FDA) and state and local regulatory agencies.
⚠CAUTION
U.S. federal law restricts this device to sale by or on the order of a
physician.
Warnings and Safety Information
Meaning of Signal Words and Symbols
In this user manual, signal words such as WARNING and CAUTION are used
regarding safety and important instructions. All users of the Interson
Ultrasound Probe System must understand the meaning of these signal words.
These signal words and symbols and their meaning are as follows.
Signal Word | Meaning |
---|---|
⚠ WARNING | Indicates a potentially hazardous situation which, if not |
avoided, could cause injury or harm to the operator or patient.
⚠ CAUTION| Indicates a potentially hazardous situation which, if not
avoided, may result in minor injury or harm to the equipment.
| Type BF Equipment (B = body, F = floating applied part).
****| Follow operating instructions
⚠| ATTENTION, refer to user manual
General Cautions and Warnings
⚠CAUTION
Probes must be cleaned after each use. Cleaning the probe is an essential step
prior to effective disinfection. Follow the manufacturer’s instructions when
using disinfectants.
⚠WARNING
Do not allow sharp objects, such as scalpels or cauterizing knives, to touch
probes or cables.
⚠WARNING
Interson probes will not exhibit excessive surface temperatures under normal
use. Disconnect the equipment if unsafe temperatures are observed. Refer to
Appendix G for temperature safety information.
⚠WARNING
If the probe is used with other devices, current leakage may increase, and
electric shock may be caused. It is the user’s responsibility to ensure safety
in such cases.
⚠WARNING
Do not attempt to connect the probe to anything other than the VPS Rhythm® DLX
system.
⚠WARNING
The use of AC adapters which have not been tested for electrical safety could
potentially cause harm to the system, the probe, the operator and/or the
patient. Interson recommends that you use only the AC adaptor supplied by the
manufacturer. Such adaptors should display certification of electrical safety
testing. If you are using a battery-operated system, you can disconnect the AC
adapter to obviate this warning.
⚠WARNING
Do not touch the probe System’s cable connector and the patient
simultaneously.
⚠WARNING
Probe System is not to be used with HF (high frequency) surgical equipment.
⚠WARNING
The use of non-ISO 10993-compliant Ultrasound Transmission Gel could
potentially cause harm to the probe, operator and/or the patient.
⚠WARNING
Do not submerse the probe in water.
⚠WARNING
No modification of this equipment is allowed. Attempting to modify or service
the equipment may result in safety hazards and performance degradation and/or
failure.
⚠WARNING
Health care providers who maintain or transmit health information are required
by the Health Insurance Portability and Accountability Act (HIPAA) of 1996 and
the European Union Data Protection Directive (95/46/EC) to implement
appropriate procedures: to ensure the integrity and confidentiality of
information; to protect against any reasonably anticipated threats or hazards
to the security or integrity of the information or unauthorized uses or
disclosures of the information.
Symbology
The following symbols may be used on Interson labeling:
**** | Symbol for “Serial Number” |
---|---|
**** | Symbol for “Part Number” |
**** | Symbol indicating the “date of manufacture” |
Indicates conformance with European Council Directive 93/42/EEC | |
**** | Equipment manufacturer |
**** | EC representative |
TUV Rheinland of North America, Inc, cTUVus Certification | |
**** | Medical Device |
Consult instructions for use | |
Keep away from sunlight | |
Keep dry | |
Not made with natural rubber latex | |
**** | Waste Electrical and Electronic Equipment |
Ultrasound Probes
Device Description
The Interson Ultrasound Probe System is a self-contained, portable, multiple-
mode, and multiple-application diagnostic ultrasound system. The system
contains an ultrasound generator/receiver, analog to digital converter,
microcontroller, control logic, and control offering a full complement of
conventional operating modes, software-based parameter controls, and
recording. The selection of probes offered with the system permits a wide
range of clinical applications including abdomen, vascular, extremity,
pediatric, urology. With these general areas of intended use, the various
probes adapt the system for the specific imaging tasks. The Interson
Ultrasound Probe System supports B-Mode mode scanning, providing high
resolution and high penetration performance. The probes can be used in
applications such as abdomen, vascular, extremity, pediatric, and urology. A
Color Flow Mapping (CFM) mode provides a qualitative indication of fluid flow
and direction.
The expected service life of Interson probes is at least five (5) years.
Refer to Appendix A for more information on the Interson Probe System. Refer
to Appendix B for more information on Interson probes.
Indications for Use
Please refer to Appendix E.
The system is intended for use by healthcare professionals.
Contraindications
The Interson Simpli Series SP-L01 ultrasound probe is not indicated for
ophthalmic use or any application that causes the acoustic beam to pass
through the eye.
Acoustic Energy and Surface Temperatures
The effects of acoustic energy on human tissue are currently under
investigation. Therefore, it is recommended that diagnostic ultrasound output
power be set to the lowest possible levels in accordance with the principle of
ALARA (As Low as Reasonably Achievable).
See Appendix C of this manual for Acoustic measurements and Appendix D for
guidance on how to best implement ALARA.
Electromagnetic Compatibility (EMC)
The Interson ultrasound probes have completed and passed EN 60601-1-2 testing.
Like other medical equipment, Interson Ultrasound Probes require special
precautions to ensure electromagnetic compatibility with other electrical
medical devices. To ensure electromagnetic compatibility (EMC), Interson
Ultrasound Probes must be installed and operated according to the EMC
information provided in this manual.
The Interson Ultrasound Probes have been designed and tested to comply with
IEC 60601-1-2 requirements for EMC with other devices.
See Appendix F of this manual for EMC test details.
⚠ CAUTION
Portable and mobile RF communications equipment may affect the normal function
of the Interson Ultrasound Probes.
⚠ CAUTION
Do not use cables or accessories other than those provided with the Interson
Ultrasound Probe, as this may result in increased electromagnetic emissions or
decrease immunity to such emissions.
Care and Handling of Probes
Although Interson probes are very durable, reasonable care must be taken to
avoid damaging them. Handle the membrane on the tip of the probe and the cable
attachment at the other end of the probe with care.
Keep the probe membrane away from sharp objects to avoid damage. Do not put
stress on, or use the cable to carry the probe, as this may damage the probe
and cable. Your probe should give you many years of reliable service if these
simple precautions are followed.
DO NOT OPEN ANY PROBE
Be careful when handling the probe. If the probe is dropped on a hard surface,
it can be damaged.
DO NOT DISCONNECT OR REMOVE CABLE FROM THE PROBE
Be sure to keep the probe plug dry at all times.
Maintenance
The probe should be cleaned after every use.
After every use check the probe housing and transducer lens for cracks,
splitting, sharp edges or projections.
If damage is evident discontinue use of the probe and contact VPS Technical
Support or your local Teleflex representative.
After every use check the cable for cuts, cracks, and kinks. This could also
impair the performance of the probe. If damage is evident discontinue use of
the probe and contact VPS Technical Support or your local Teleflex
representative.
⚠ WARNING
Users of this probe(s) have an obligation and responsibility to provide the
highest degree of infection control possible to patients, co-workers and
themselves. To avoid cross contamination, follow all infection control
policies established for the office, department, or hospital as they apply to
personnel and equipment.
Cleaning and Disinfection
⚠ WARNING
Always disconnect the ultrasound probe system from the host system before
performing maintenance or cleaning.
⚠ WARNING
Always follow the manufacturer’s instructions when cleaning and disinfecting
probes and biopsy guide adapters.
⚠ WARNING
Do not use a surgeon’s brush when cleaning probes. Even the use of soft
brushes can damage the probe.
⚠ WARNING
Do not immerse the probe in solution during cleaning and disinfection.
Probe Cleaning
The Ultrasound Probe System is capable of withstanding, without damage or
deterioration of the safety provisions, the cleaning and/or disinfecting
process specified in this manual.
-
Wear protective gloves when performing the cleaning process.
-
Disconnect the probe from the system.
-
Remove any sheaths, biopsy guide adapters, and biopsy needle guides.
-
Discard sheaths (sheaths are a single-use item) in a biohazard container.
-
Using a Bleach Wipe
a. Wipe the probe and cable using a PDI® Sani-Cloth bleach wipe to remove gross soil avoiding the connectors if possible.
i. Wipe all seams, creases, recessed areas, and mated surfaces.
b. Using a fresh PDI® Sani-Cloth bleach wipe, wipe all surfaces of the probe and cable, allowing the devices to remain visibly wet for 4 minutes, per the manufacturer’s recommendation.
i. Use additional wipes as needed to achieve desired contact time. -
Allow the probe and cable to air dry.
-
If visible soil remains on the probe and/or cable the cleaning steps may be repeated.
Probe Disinfecting
A 10⁶ reduction in pathogens should be reached following the disinfecting
procedures in this manual and using the following recommended solutions. The
following disinfectants are recommended because of both biological
effectiveness (as qualified though the FDA 510(k) process) and their
compatibility with Interson ultrasound product materials.
- Wear protective gloves when performing the disinfecting procedure.
- Check the expiration date on the solution that is being used.
- Use only solutions that are within the expiration date.
⚠ WARNING
The level of disinfection required for a device is dictated by the type of
tissue it will contact during use. To avoid infection, ensure the disinfectant
type is appropriate for the equipment. For information, see the disinfectant
label instructions and the recommendations of the Association of Professional
in Infection Control and Epidemiology (APIC) and the U.S. Food and Drug
Administration (FDA).
⚠ WARNING
Using a non-recommended disinfection solution, incorrect solution strength, or
immersing a probe deeper or for a period longer than recommended by
disinfectant manufacturer can damage or discolor the probe and will void the
probe warranty.
For more information on probe warranty please refer to Appendix H.
⚠ WARNING
Disinfect probes using only liquid solutions. Using autoclave, gas (EtO), heat
or radiation to sterilize or other non-Interson-approved methods will
permanently damage the probe and void the warranty.
-
Examine the probe for damage such as cracks, splitting, sharp edges or projections. If damage is evident, abandon disinfection, discontinue use of the probe, and contact VPS Technical Support or your local Teleflex representative.
-
After cleaning, disinfect the probe using a bleach wipe
-
Using a Bleach Wipe
a. Wipe all visible surfaces of the probe and cable using a PDI® Sani-Cloth bleach wipe to pre-wet the device, avoiding the connector if possible.
i. Wipe all seams, creases, recessed areas, and mating surfaces.
b. Using a fresh PDI® Sani-Cloth bleach wipe, wipe all surfaces of the probe and cable, allowing the devices to remain visibly wet for 4 minutes, per the manufacturer’s recommendation.
i. Use additional wipes as needed to achieve desired contact time.
ii. Rinse using a lint free cloth moistened with USP water for irrigation. -
Allow the probe and cable to air dry.
Training
This probe system is intended to be used by trained medical professionals
only.
The specific probe functions are described in this manual.
Storage
When the probe is not being used, it should be stored in a clean, dry area.
⚠ CAUTION
Disinfect the probe before use to avoid it becoming a source of infection.
To prevent damage to the probe, do not store in areas where it might be
exposed to:
- Excessive vibration
- Excessive dust and dirt
Store the probe under the following ambient conditions:
- Temperature: -10°C to 50°C (14°F to 122°F)
- Relative humidity: 20% to 80% (no condensation)
- Atmospheric pressure: 700 hPa to 1060 hPa
Transportation
- Never carry the probe by the cable. The cable could disconnect from the probe allowing it to drop and possibly damaging the probe.
- Never bend the cable in a tight radius. This could result in damage to the cable.
- Transport the probe under the following ambient conditions:
- Temperature: -10°C to 50°C (14°F to 122°F)
- Relative humidity: 20% to 80% (no condensation)
- Atmospheric pressure: 700 hPa to 1060 hPa
- When transporting the probe, make sure the probe is properly protected from dropping or damage.
- Call VPS Technical Support or your local Teleflex representative for a Return Material Authorization (RMA) number before returning a probe for evaluation and possible repair.
- When returning for repair, return probe in original package. If the original package is not available, contact VPS Technical Support or your local Teleflex representative for the best packaging method prior to sending a probe in for evaluation and possible repair.
Disposal
- Contact Interson Corporation before disposing of the probe(s).
- Concerning the WEEE label:
The following information is for EU member states:
The use of this symbol indicates that this product should not be treated as
household waste. By ensuring that this product is disposed of correctly, you
will help prevent potential negative consequences for the environment and
human health, which could otherwise be caused by inappropriate waste-handling
of this product. For more information concerning the return and recycling of
this product, please consult Interson Corporation.
Troubleshooting
If a problem is experienced with the probe, try the suggestions listed below:
No image:
- Disconnect the probe and turn off the system.
- Reconnect the probe and turn on the system.
Image not clear:
- Adjust the image controls in the system controls area of the imaging display by changing depth and/or gain.
Error messages:
- Repeat all steps listed in “No image.”
Technical Support
If you are not able to find the solution by using this manual, contact
Teleflex VPS Tech Support or your local Teleflex representative.
Prepare to contact Technical Support:
To receive the fastest possible resolution of a problem, have the following
information available when contacting Teleflex VPS Tech Support (North
America) (
VPSTechSupport@teleflex.com ,
+1.877.236.6869) or your local Teleflex representative:
- Serial number
- Conditions under which the problem occurred.
- Error messages that have been displayed.
Probe Preparation
⚠ WARNING
Some transducer sheaths contain natural rubber and talc, which can cause
allergic reactions in some individuals. For more information, see the FDA’s
March 29, 1991, Medical Alert on latex products.
Acoustic coupling gel must be used during exams.
General Use
Apply a liberal amount of gel between the transducer and the body.
Invasive or Surgical Use
⚠ WARNING
To prevent contamination, the use of sterile transducer sheaths and sterile
coupling gel is recommended for clinical applications of an invasive or
surgical nature. Do not apply the transducer sheath and gel until you are
ready to perform the procedure.
Installing Sheaths
Interson recommends the use of market-cleared, transducer sheaths for
intracavity or surgical applications. To lessen the risk of contamination,
install the sheath only when you are ready to perform the procedure.
- Place gel inside the sheath.
- Insert the transducer into the sheath.
- Pull the sheath over the transducer and cable until the sheath is fully extended.
- Secure the sheath using the bands supplied with the sheath.
- Check for and eliminate bubbles between the face of the transducer and the sheath. If any bubbles are present between the face of the transducer and the sheath, the ultrasound image may be affected.
- Inspect the sheath to ensure there are no holes or tears.
Getting Started
System Components
The system consists of the following:
- The VPS Rhythm® DLX system
- The SP-L01 linear array probe and cable
See the VPS Rhythm® DLX Operator’s Manual for operating instructions and for
connection of the ultrasound probe to the VPS Rhythm® DLX Device.
Statement of Accuracy
Distance Measurements: Accuracy of distance measurements is the greater of ±
2% or ± 2 mm. All measurements made by the ultrasound system assume an average
sound velocity of 1540 m/s in soft tissue. As the ultrasound system can only
measure what is displayed on the screen, the operator must be diligent in
obtaining a good image. Measurements should not be used as the sole
determinant of diagnosis and treatment but should always be combined with
other clinical data. Various factors including the scanning technique,
familiarity with placement of the calipers, and the tissues being imaged,
affect the image quality and thus the measurement accuracy.
Color Doppler Display: By selecting the CFM mode, the image display will show
different colors to indicate fluid flow toward or away from the probe, and
different shades to indicate velocity. The color information displayed is a
qualitative indication of fluid flow and direction. The SP-L01 probe is able
to discriminate between positive and negative low flow rates of 5.5 cm/sec at
the center of the scale, and show representative lightening of the color
displayed as the flow rates increase, to a maximum scale value of ± 28.0
cm/sec.
⚠ WARNING
The experience and diligence of the operator in achieving a quality image are
major factors in the accuracy of distance measurements. The operator must
ensure that measurements are made only on suitable images to achieve accurate
measurements.
Appendix A – Interson Probe System Specifications
Imaging Mode | B Scan |
---|---|
Functions | • Multiple freeze methods: button on probe or button on screen |
Image Resolution | • 0.1 to 2.0 mm resolution* |
Gray Shades | • True 256 (8 bits) shades of gray |
Sector Size | • Rectangular* |
Transducers | • High bandwidth, multiple elements: 7.5 MHz nominal frequencies* |
Power Supply Requirements | • DC 5.0 VDC ±5%, 3.0 watts (max). |
Environmental | • Max operating temperature: 31°C (88°F) |
• Min operating temperature: -10°C (14°F)
• Operating humidity range: 20-80% Non-condensing
Storage Temperature| • -10°C to 50°C (14°F to 122°F)
Appendix B – Interson Probes and Their Applications
Description | Design |
---|---|
PROBE SP-L01 | ![INTERSON SP L01 Simpli Series System - |
Design](https://manuals.plus/wp-content/uploads/2023/05/INTERSON-SP-L01 -Simpli-Series-System-Design.png)
Transducer Model SP-L01
This device is a hand-held, flat linear array solid-state probe intended for
transcutaneous use with the Interson Ultrasound System. The nominal operating
frequency is 7.5 MHz with upper and lower range ends of 15.0 MHz and 4.0 MHz
respectively. The operating modes are B and combined B + color Doppler modes.
See Appendix E for the Indications for Use for Interson Ultrasound Probes.
Appendix C – Summary of the Acoustic Quantities
The acoustic output data is shown for each probe in each operating mode.
Summary of the acoustic quantities: SP-L01 Probe
Mode: B-Mode
Index| MI| TIS| TIB| TIC
At Surface| Below Surface| At Surface| Below Surface|
Maximum index value| 1.15| 0.084| 0.197| (3)
Index Component Value| | 0.084| 0.084| 0.197| 0.084| –
| IEC| FDA| Units| | | | | |
Associate dacoustic parameter| pr.a at zMI| pr.3| (MPa)| 2.66| | | | |
P| W0| (mW)| | 12.3| 12.3| –
P1x1| (mW)| | 3.31| 3.31| –
zs| z1| (cm)| | | 0.8| | |
zb| zsp| (cm)| | | | –| 0.8|
ZMI| ZMI| (cm)| 0.8| | | | |
Zpi,α| Zpi,α| (cm)| 0.8| | | –| |
fawf| Fc| (MHz)| 5.32| 5.32| 5.32| –
Other Informatio n| prr| (Hz)| 5120| | | | |
srr| (Hz)| 40| | | | |
npps| | 1| | | | |
Ipa,α at zpii,α| (W/cm2)| 346| | | –| |
Ispta,α at zpii,α or zsii,α| (mW/cm2)| 13.9| | | | |
Ispta at zpii or zsii| (mW/cm2)| 18.6| | | | |
pr at zpii| (MPa)| 3.08| | | | |
Operating Control Conditions| Scan rate| | 40 Hz| | | | |
Lines per scan| | 128| | | | |
Scan angle| | 3.84cm| | | | |
Transmit focus| | 2.0 cm| | | | |
Note 1: Information need not be provided for any formulation of TIS not
yielding the maximum value of TIS for that mode.
Note 2: Information need not be provided regarding TIC for any Transducer
Assembly not intended for transcranial or neonatal cephalic uses.
Note 3: Information on MI and TI need not be provided if the equipment meets
both the exemption clauses given in 51.2 aa) and 51.2 dd).
(a) Intended use does not include cephalic so TIC is not computed.
Summary of the acoustic quantities: SP-L01 Probe
Mode: Color Flow Doppler (Combined Mode)
Index| MI| TIS| TIB| TIC
At Surface| Below Surface| At Surface| Below Surface
Maximum index value| 1.35| 2.54| 3.14| (3)
Index Component Value| | 2.54| 2.54| 3.14| 2.54| –
| IEC| FDA| Units| | | | | |
Associated Acoustic parameter| pr.a at zMI| pr.3| (MPa)| 3.03| | | | |
P| W0| (mW)| | 196.3| 32.9| –
P1x1| (mW)| | 106.5| 106.5| –
zs| z1| (cm)| | | 0.8| | |
zb| zsp| (cm)| | | | –| 0.8|
ZMI| ZMI| (cm)| 0.8| | | | |
Zpi,α| Zpi,α| (cm)| 0.8| | | –| |
fawf| Fc| (MHz)| 5.01| 5.01| 5.01| –
Other Information| prr| (Hz)| 8960| | | | |
srr| (Hz)| 20| | | | |
npps| | 1| | | | |
Ipa,α at zpii,α| (W/cm2)| 606| | | –| |
Ispta,α at zpii,α or zsii,α| (mW/cm2)| 387.2| | | | |
Ispta at zpii or zsii| (mW/cm2)| 510.5| | | | |
pr at zpii| (MPa)| 3.48| | | | |
Operating Control Conditions| Scan rate| | | 20 Hz| | | | |
B-Mode Scan Angle| | 3.84 cm| | | | |
B-Mode Scan Lines| | 128| | | | |
CFM Scan Angle| | 1.92 cm| | | | |
CFM Scan Lines| 32| | | | |
CFM Pulses Per Line| 14| | | | |
Transmit Focus| 2.0 cm| | | | |
Note 1: Information need not be provided for any formulation of TIS not
yielding the maximum value of TIS for that mode.
Note 2: Information need not be provided regarding TIC for any Transducer
Assembly not intended for transcranial or neonatal cephalic uses.
Note 3: Information on MI and TI need not be provided if the equipment meets
both the exemption clauses given in 51.2 aa) and 51.2 dd).
(a) Intended use does not include cephalic so TIC is not computed.
Appendix D – Achieving ALARA
The acoustic power of diagnostic ultrasound and its possible effects on human
tissue has been studied for many years. The acoustic power of ultrasound
imaging transducers must be below specific limits that are established by
international standards bodies as well as required by governmental regulatory
controls. While modern ultrasound imaging transducers are well below the
allowable limits, it is standard practice to abide by the principle to set the
power and limit the use to “As Low As Reasonably Achievable” (ALARA). The
concept is quite simple: keep the acoustic exposure at the lowest possible
levels and use the shortest amount of time that is necessary to obtain the
desired diagnostic image. As the acoustic power can only be set lower than the
allowed limit, the combination of lowering the transmit power and reducing the
exposure time will minimize any possible biological effects.
There are two output display indices (Thermal Index and Mechanical Index) that
notify the user of the amount of energy that is being transmitted. The output
display indices are updated based on the settings that the operator of the
ultrasound system uses to optimize the image. By providing the indices,
operators are informed of the values and can therefore adapt their procedure
to better abide by ALARA.
ALARA Guidelines
ALARA places responsibility to lower the power from the maximum level on the
operator. As was mentioned above, acoustic power can only be lowered from its
maximum and the maximum is well below the allowable limit. How does the
operator determine what power level to set? ALARA directs the operator to use
the lowest possible acoustic power that still allows a diagnostic quality
image to be obtained. Using a higher transmit frequency results in lower
biological effects. Therefore, using the highest possible frequency that still
allows the operator to see to the required depth would be applying ALARA
correctly. The quality of the image is also determined by the receiver
controls such as gain, intensity, and contrast. As receiver controls do not
affect acoustic transmit power, it is always good practice to adjust the
receiver controls before considering an increase in acoustic transmit power.
ALARA also directs the operator to use the transducer for the minimum amount
of time that is necessary to obtain the desired diagnostic-quality image.
Applying the ALARA Principle
Prior to starting the ultrasound scan, be sure to select the proper
transducer for your application. The linear array transducer is used for small
parts, close to the surface scanning, down to about 6 cm. The software opens
with power set to a specific value and the pulse frequency set to the center
value. However, as a higher pulse frequency creates less of a biological
effect, increase the pulse frequency as high as possible while still allowing
you to reach your target depth. Although this acoustic power setting is well
below the allowable limits, the ALARA principle directs you to use the lowest
possible power. Use the highest pulse frequency and lowest acoustic power
while still enabling you to acquire the image that you need.
Scanning time should be kept to a minimum. However, do not shorten the session
so much that a follow-up exam is necessary as this would only increase the
overall exposure for the patient.
Display of Indices
The calculated Mechanical Index and Thermal Index can be viewed on the main
display screen and can be monitored by the operator. By monitoring these
displayed values as the acoustic power, depth, and frequency are adjusted, the
operator can achieve the lowest possible values of the indices that still
enables them to acquire the desired image. Proper ALARA principles direct you
to move through the exam quickly and ensure that the indices are kept to a
minimum. The resolution of displayed Mechanical and Thermal Indices is 0.1.
Displayed values are relative values based on acoustic power testing and
change in frequency, transmit power, and focal depth. Mechanical and Thermal
indices are calculated values. They cannot be measured and as such should be
only used as input to properly practice the ALARA principles of keeping the
acoustic power exposure to a minimum.
Thermal Index Display
There are three thermal indices. The TIB informs the user of potential heating
near the focus after the ultrasound has transitioned through fluid or soft
tissue. TIC informs the user of potential heating of bone at or near the
surface. TIS is used to indicate any heating effect in soft homogenous tissue.
If the ultrasound device is not capable of exceeding a thermal index of 1.0 in
any mode, then the thermal index is not displayed.
Adjusting Image Controls to Minimize the Indices
As acoustic power is minimized you will see the Mechanical and Thermal indices
values changing. When using color mode with standard 2D mode, the system will
display the Indices for the color or 2D, whichever is greater. Biological
effects are also dependent on pulse frequency. Higher pulse frequencies have
lower biological effects. Therefore, use the highest pulse frequency that
still allows you to obtain the desired image.
As displayed depth is changed the transmit focal point and frame rate are
adjusted automatically for the user. If the new depth and focal point affect
the indices, the user will see the displayed indices change.
ALARA Resources
Medical Ultrasound Safety, Third Edition, AIUM 2014
American Institute of Ultrasound in Medicine Bioeffects Consensus Report, Vol.
27, Issue 4, April 2008
AIUM Consensus Report on Potential Bioeffects and Safety of Diagnostic
Ultrasound, January 1993
Appendix E – Interson Ultrasound Probes – Indications for Use
The Interson Ultrasound System is intended for diagnostic ultrasound imaging in B or Combined (B + Color) modes. It is indicated for diagnostic ultrasound imaging and fluid flow analysis in the following applications:
- Abdominal
- Pediatric
- Small Organ
- Musculo-skeletal (conventional)
- Musculo-skeletal (superficial)
- Urology
- Gynecology
- Pelvic Floor
- Neuro-muscular
- Peripheral Vessel
The system is only intended for use by healthcare professionals.
Diagnostic Ultrasound Indications for Use
Interson Ultrasound System
Mode: B, B + color Doppler
Intended Use: Diagnostic ultrasound imaging and fluid flow analysis of the
human body as follows:
| SP-L01
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Ophthalmic|
Fetal/Obstetric|
Abdominal|
Intra-Operative (Specify)|
Intra-Operative Neurological|
Laparoscopic|
Pediatric (excluding transcranial & neonatal)|
Small Organ (Scrotum, prostate, lymph nodes, thyroid, breast)|
Neonatal Cephalic|
Adult Cephalic|
Trans-rectal|
Trans-vaginal|
Trans-urethral|
Trans-esoph. (non-card.)|
Muscular-Skeletal (Conventional)|
Muscular-Skeletal (Superficial)|
Intravascular|
Other (Urology)|
Other (Gynecology)|
Other (Pelvic Floor)|
Other (Neuromuscular)|
Cardiac Adult|
Cardiac Pediatric|
Intravascular (Cardiac)|
Trans-esoph. (Cardiac)|
Intra-cardiac|
Peripheral vessel|
Other (Specify)|
Appendix F – EMC Information
Guidance and manufacturer’s declaration – electromagnetic emissions
Interson’s Ultrasound Probes are intended for use in the electromagnetic
environment specified below. The customer or the user of the Interson
Ultrasound Probe should ensure that it is used in such an environment.
Emissions test| Compliance| Electromagnetic environment –
guidance
RF emissions CISPR 11| Group1| Interson’s Ultrasound Probes use RF energy only
for their internal function. Therefore, their RF emissions are very low and
are not likely to cause any interference in nearby electronic equipment.
RF Emissions CISPR 11| Class A
Harmonic emissions IEC 61000-3-2| Class A| The system is suitable for use in
all establishments, including domestic establishments and those directly
connected to the public low-voltage power supply network that supplies
buildings used for domestic purposes.
Voltage fluctuations/flicker emissions IEC 61000-3-3| Complies
Guidance and manufacturer’s declaration – electromagnetic immunity
Interson’s Ultrasound Probes are intended for use in the electromagnetic
environment specified below. The customer or the user of the Interson
Ultrasound Probe should ensure that it is used in such an environment.
Immunity test| IEC 60601 test level| Compliance level|
Electromagnetic environment – guidance
Electrostatic discharge (ESD)
IEC 61000-4-2| ±8 kV Contact
±15 kV Air| ±8 kV Contact
±15 kV Air| Floors should be wood, concrete, or ceramic tile. If floors are
covered with synthetic material, the relative humidity should be at least 30%.
Electrical fast transient/burst
IEC 61000-4-4| ±2 kV AC Mains
±1 kV I/O Lines 5/50
5 kHz & 100 kHz| ±2 kV AC Mains
±1 kV I/O Lines 5/50
5 kHz & 100 kHz| Mains power quality should be that of a typical commercial or
hospital environment.
Surge line to line (AC Power)
IEC/EN 61000-4-5| ±1 kV Line to line
±2 kV Line to ground| ±1 kV Line to line
±2 kV Line to ground| Mains power quality should be that of a typical
commercial or hospital environment.
Voltage dips, short interruptions and voltage variations on power supply input
lines
IEC 61000-4-11| 0% UT .5 cycle
0% UT 1 cycle
70% UT 25 cycles
0% UT 5 Sec| 0% UT .5 cycle
0% UT 1 cycle
70% UT 25 cycles
0% UT 5 Sec| Mains power quality should be that of a typical commercial or
hospital environment. If the user requires continued operation during power
mains interruptions, it is recommended that the system be powered from an
uninterruptible power supply or battery.
Power frequency magnetic immunity (50/60 Hz)
IEC 61000-4-8| 30 A/m| 30 A/m| Power frequency magnetic fields should be at
levels characteristic of a typical location in a typical commercial or
hospital environment.
Guidance and manufacturer’s declaration – electromagnetic immunity
Interson’s Ultrasound Probes are intended for use in the electromagnetic
environment specified below. The customer or the user of the Interson
Ultrasound Probe should ensure that it is used in such an environment.
IMMUNITY test| IEC 60601 TEST LEVEL| Compliance Level|
Electromagnetic environment – guidance
Conducted RF IEC 61000-4-6| 0.15 – 80 MHz 3 Vrms & 6 Vrms 1 kHz| 0.15 – 80 MHz
3 Vrms & 6 Vrms 1 kHz| Portable and mobile RF communications equipment should
be used no closer to any part of the product, including cables, than the
recommended separation distance calculated from the equation applicable to the
frequency of the transmitter.
Recommended separation distance: = 1.2√
= 1.2√ for 80 MHz to 800 MHz
= 2.3√ for 800 MHz to 2.5 GHz
Radiated RF IEC 61000-4-3| 80 MHz to 6 GHz
3 V/m & 10 V/m
80% @ 1 kHz
Spot Frequencies
385 MHz to 5.750
GHz Pulse Modulation| 80 MHz to 6 GHz
3 V/m & 10 V/m
80% @ 1 kHz
Spot Frequencies
385 MHz to 5.750
GHz Pulse
Modulation| Where P is the maximum output power rating of the transmitter
in Watt (W) according to the transmitter manufacturer and d is the
recommended separation distance in meters (m).
Field strengths from fixed RF transmitters, as determined by an
electromagnetic site survey a, should be less than the compliance level b in
each frequency range.
Interference may occur in the vicinity of equipment marked with this symbol.
NOTE 1: At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2: These guidelines may not apply in all situations. Electromagnetic
propagation is affected by absorption and reflection from structures, objects
and people.
a. The ISM (industrial, scientific, and medical) bands between 150 kHz and 80
MHz are 66.765 MHz to 6.795 MHz; 13.553 MHz to 13.567 MHz; 26.957 MHz to
27.283 MHz; and 40.66 MHz to 40.70 MHz.
b. The compliance levels in the ISM frequency bands between 150 kHz and 80 MHz
and in the frequency range 80 MHz to 2.5 GHz are intended to decrease the
likelihood that mobile/portable communications equipment could cause
interference if it is inadvertently brought into patient areas. For this
reason, an additional factor of 10/3 has been incorporated into the formulae
used in calculating the recommended separation distance for transmitters in
these frequency ranges.
c. Field strengths from fixed transmitters, such as base stations for radio
(cellular/cordless) telephones and land mobile radios, amateur radios, AM and
FM radio broadcast and TV broadcast cannot be predicted theoretically with
accuracy. To assess the electromagnetic environment due to fixed RF
transmitters, an electromagnetic site survey should be considered. If the
measured field strength in the location in which the Ultrasound Probe is used
exceeds the applicable RF compliance level above, the Ultrasound Probe should
be observed to verify normal operation. If abnormal performance is observed,
additional measures may be necessary, such as re-orienting or relocating the
Ultrasound Probe.
d. Over the frequency range 150 kHz to 80 MHz, field strengths should be less
than 1 V/m.
Appendix G – Maximum Probe Temperature
Interson probes will not exhibit excessive surface temperatures under normal
use.
Disconnect the equipment if unsafe temperatures are observed. Interson probes
have been tested to conform with IEC 60601-2-37.
Probe | Max. Temp. (Simulated use) | Max. Temp. (Still air) |
---|---|---|
SP-L01 | 25.9°C (78.6°F) | 24.5°C (76.1°F) |
Appendix H – Interson Customer Warranty
Interson (“Company”) warrants that the Ultrasound Imaging Probe (the
“Product”) will perform in accordance with its specifications and is free from
material and manufacturing defects. Loss, or damage caused by misuse or abuse
is not covered by this warranty.
The Company agrees to replace or correct any defects or errors in the Product
in accordance with Teleflex’s Manufacturer’s Warranty Period (see Operator’s
Manual for Arrow® VPS Rhythm® DLX Device. The Company’s sole liability and the
exclusive remedy shall be, at the Company’s option, the repair or replacement
of the Product. The Company makes no additional representations or warranties,
express or implied, regarding the Product and/or its use. By way of example,
but not of limitation, the Company makes no representations or warranties of
merchantability or fitness for any particular purpose. Purchaser assumes the
responsibility for the selection of the Product as being
adequate for and appropriate for purchaser’s purposes.
In no event will the Company be liable for any special, incidental, indirect
or consequential damages whatsoever arising out of the use of or inability to
use the product, even if the company has been advised of the possibility of
such damages.
The warranty does not extend to defects to: (i) the Product arising out of
material or workmanship not provided or furnished by the Company; (ii) the
Product resulting from abnormal use of the Product or use in any manner other
than as specified in the Product’s operating manual; (iii) components or parts
warranted by another party; (iv) parts which are subject to normal wear and
tear, including, but not limited to, cables, cable connectors, or switches.
To receive the fastest possible resolution of a problem under warranty, have
the following information available when contacting Teleflex VPS Tech Support
(North America)
( VPSTechSupport@teleflex.com ,
+1.877.236.6869) or your local Teleflex representative:
- Serial number
- Conditions under which the problem occurred.
- Error messages that have been displayed.
© Copyright Interson Corporation. All rights reserved. No part of this manual
or software may be reproduced in any form or by any means, electronic or
mechanical, including but not limited to photocopying, recording, or by any
information storage and retrieval systems, without the express written consent
of Interson Corporation.
Windows is a trademark of Microsoft Corporation.
Interson, SimpliVue, and SiMPLi Series are trademarks of Interson Corporation.
Equipment Manufacturer
Interson Corporation
7150 Koll Center Parkway
Pleasanton, CA 94566 USA
Phone: 925.462.4948
Fax: 925.462.4833
Email:support@interson.com
Website:www.interson.com
01-9951-00 R3
Documents / Resources
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INTERSON SP-L01 Simpli Series
System
[pdf] Instructions
SP-L01 Simpli Series System, SP-L01, Simpli Series System, Series System,
System
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References
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