Mettler Electronics Sonicator Plus 941 User manual

Sonicator® Plus 941
4-Channel Electrotherapy/Ultrasound Combo
Instruction Manual
1333 South Claudina Street • Anaheim, CA 92805, U. S. A.
Toll Free: (800) 854–9305 • Telephone: [phone] • FAX: [phone]
Web Site: http://www.mettlerelectronics.com • Email: [e-mail]
IR8–49 Rev.B_10/11/18
Copyright © 2018 by Mettler Electronics Corp.—Anaheim, CA
To ensure correct use, please read this manual carefully before
operating the unit. After reading, store the manual in a safe place
for future reference.

contents
Symbols····································································································1
To Ensure Correct and Safe Use
Intended use ····························································································2
Contraindications ······················································································2
Precautions ·····························································································4
Storage condition ······················································································7
Precautions on Handling·············································································7
Maintenance and Inspection ········································································7
Device Configuration ···················································································9
Specifications··························································································· 11
Names of Parts························································································· 12
Preparations for Electrotherapy···································································· 14
Display of Electrotherapy Screen·································································· 24
Operation for Electrotherapy ······································································· 26
Setting Parameters for 4-Pole Interferential Mode ············································ 29
Setting Parameters for 2-Pole Interferential Mode ············································ 32
Setting Parameters for EMS Mode ······························································· 35
Setting Parameters for Russian Mode ··························································· 38
Setting Parameters for Hi-Voltage Mode ························································ 41
Setting Parameters for TENS Mode ······························································ 44
Setting Parameters for Microcurrent Mode ····················································· 48
Setting Parameters for Galvanic Mode ··························································51
Preparing for Ultrasound Therapy ································································· 74
Ultrasound Therapy Screen········································································· 76
Operation for Ultrasound Therapy································································· 78
Preparing for Combination Therapy ······························································ 82
Combination Therapy Screen ······································································ 84
Operation for Combination Therapy ······························································ 86
Display of Clinical Program Screen ······························································· 90
Operation of Clinical Program ······································································ 92
Saving Programs ······················································································ 94
Loading Programs····················································································· 96
Setting Screen·························································································· 98
Error Screen ·························································································· 101
EMC····································································································· 102

Symbol for “CAUTION” Symbol for “ELECTROSTATIC
SENSITIVE DEVICES
Symbol for “CONSULT
INSTRUCTIONS FOR
USE”
Symbol for “POWER ON” (Power
switch)
Symbol for
“TEMPERATURE LIMIT”
Symbol for “POWER OFF” (Power
switch)
Symbol for
“HUMIDITY
LIMITATION”
Symbol for “PAUSE” (Pause switch)
Symbol for
“ATMOSPHERIC
PRESSURE
LIMITATION”
Symbol for “STOP” (Stop switch)
Symbol for “AC (alternating current)” Symbol for “US applicator output port”
Symbol for “TYPE BF APPLIED
PART” Symbol for cTUVus certification
Symbol for “NON-IONIZING
ELECTROMAGNETIC RADIATION” Symbol for prescription only
List of Abbreviations
cm² — Square centimeters
Hz — Hertz (pulses per second)
LCD — Liquid crystal display
LED — Light Emitting Diode
MHz — Megahertz (1 x 106cycles per second)
s— Microsecond (1 x 10-6 second)
mA — Milliampere (1 x 10-3 ampere)
ms — Millisecond (1 x 10-3 second)
min — Minutes
sec — Seconds
S/N — Serial Number
W— Watts
W/cm² — Watts per square centimeter
Symbols & Abbreviations

To Ensure Correct and Safe Use
To Ensure Correct and Safe Use
Federal law restricts the sale of this device to, or on the order of a physician, dentist, veterinarian or
any other practitioner licensed by law of the state in which he practices.
Use of controls or adjustments or performance of procedures other than those specified herein may
result in hazardous exposure to ultrasonic energy. Treatment should be administered only under the
direct supervision of a health care professional.
The electric energy delivered by this device may possibly be lethal. Treatment should be
administered only under the direct supervision of a health care professional. The stimulus delivered
by this device may be sufficient to cause electrocution. Electrical current above 25 µC must not flow
through the thorax because it may cause a cardiac arrhythmia.
INDICATIONS FOR USE
Indications for electrotherapy
Intended use for Interferential (IF-4), Interferential (IF-2), TENS, Microcurrent, Galvanic
1. Symptomatic relief of chronic intractable pain
2. Post-traumatic pain
3. Post-surgical pain
Indications for EMS, Russian, Hi-Voltage and TENS modes
1. Relaxation of muscle spasms
2. Increase local blood circulation
3. Prevention or retardation of disuse atrophy
4.Muscle re-education
5. Maintaining or increasing range of motion
6. Immediate post-surgical stimulation of calf muscles to prevent venous thrombosis
Indications for DC (Direct Current) waveform
1. Relaxation of muscle spasm
Indications for therapeutic ultrasound
1. Relief of pain, muscle spasms and joint contractures:
2. Relief of pain, muscle spasms and joint contractures that may be associated with:
●Adhesive capsulitis
●Bursitis with slight calcification
●Myositis
●Soft tissue injuries
●Shortened tendons due to past injuries and scar tissues
3. Relief of pain, muscle spasms and joint contractures resulting from:
●Capsular tightness
●Capsular tightening

Contraindications
Contraindications for Neuromuscular Electrical Stimulation
1) Anterior neck of the carotid sinus region
2) Electrical neuromuscular stimulation should not be administered to individuals who are or
may be pregnant.
3) Do not stimulate a patient who has a cardiac demand pacemaker.
4) Patients with implanted electronic devices should not be subjected to stimulation.
5) Placement of electrodes across the chest laterally or ante¬rior/posterior creates a possible
hazard with cardiac patients and is therefore not recommended. Do not use transthoracically
in any mode. Great care should be exercised in applying the electrical stimulus current to any
region of the thorax because the stimulus current may produce cardiac arrhythmia. In
patients with known heart disease, electrical stimulation should be used only after careful
physician evaluation and patient instruction.
6) Place electrodes in such a way to avoid stimulation of the carotid sinus (neck) region.
7) Patients with arterial or venous thrombosis or thrombophlebitis are at risk of developing
embolisms when electrical stimulation is applied over or adjacent to the vessels containing
the thrombus. If a patient has a history of deep vein thrombosis, even many years past, the
affected area should not be stimulated.
8) Do not use over swollen, infected, or inflamed areas. Do not place electrodes over skin
eruptions.
9) Fresh fractures should not be stimulated in order to avoid unwanted motion.
10) Do not apply stimulation transcerebrally (through the head).
11) Do not use on cancer patients.
12) Stimulation should not be applied immediately following trauma or to tissues susceptible to
hemorrhage.
13) Positioning electrodes over the neck or mouth may cause severe spasm of the laryngeal
or pharyngeal muscles. These contractions may be strong enough to close the airway or
cause difficulty in breathing.
14) Do not apply stimulation for undiagnosed pain syndromes, until etiology is established.
15) Do not apply electrodes directly over the eyes or inside body cavities.
16) Do not use electrical stimulation in conjunction with high frequency surgical equipment or
microwave or shortwave therapy systems.
Contraindications for therapeutic ultrasound
1) Therapeutic ultrasound should not be applied over the pregnant or potentially pregnant uterus.
Therefore, therapeutic ultrasound should not be applied over the uterus unless specific
assurance can be attained from the patient that she is not pregnant.
2) Patients who have cardiac pacemakers should be protected from direct ultrasound exposure
over the thorax to protect the lead wires and pacer from such exposure.
3) Therapeutic ultrasound should not be applied to the eye.
4) Applications of therapeutic intensities of ultrasound should be avoided over the heart.
5) Neoplastic tissues or space occupying lesions should not be exposed to ultrasound.
6) Ultrasound should not be applied to the testes to avoid increases in temperature.
7) Areas of thrombophlebitis should not be treated with therapeutic ultrasound due to the
increased possibility of clotting or dislodging a thrombus. Conditions where this might occur are