basic knowledge on acoustics acoustic airway clearance device · basic knowledge on acoustics 1....
TRANSCRIPT
Infrasound covers sounds below 20 Hz down to 0.001 Hz.
Sound is within the range of human hearing which is normally limited to frequencies between 20 Hz and 20 000 Hz (20 KHz). The Frequencer™ operates at frequencies between 20-65 Hz.
Ultrasound covers frequencies greater than the upper limit of human hearing. The most well known application is its use in sonography and echography. Muscles, tendons, breast and neonatal brain are imaged at frequencies in the millions of Hz (7-18 MHz).
ACOUSTICS
Acoustic airway clearance device
www.dymedso.com
Basic knowledge on acoustics1. Acoustics is the study of sound, ultrasound and infrasound.
2. An interesting study was performed at the Université de Paris that assessed the depth to which mechanical and acoustical waves could travel into the chest cavity. The study revealed that mechanical waves cause strong surface effects but diminish rapidly with distance travelled into the chest, while acoustical waves are weaker on the surface, but diminish little with distance.
3. A great feature of sound is the body’s tendency to absorb more energy at a frequency that matches its own natural frequency of vibration (its resonant frequency) than it does at other frequencies.
A body will easily vibrate at this frequency and vibrate less strongly at other frequencies.
In fact, it filters out all frequencies other than its own resonant frequency.
4. In a 2002 U.S. Department of Commerce study, the human lung resonant frequency was determined to be in the range of 40-42 Hz. Like with the pipe organ analogy, where smaller, shorter pipes play higher sounds, the resonant frequency of smaller passages and those clogged with mucus is higher than the primary chest resonance, since their diameter and length is smaller, and their stiffness is higher.
The Frequencer™ can easily be set at specific frequencies ranging from 20 Hz to 65 Hz to match airway resonant frequency.
The HFCWO mechanical air compressors operate at around 12-16 Hz.
CPT is rarely more than 3-4 Hz (or claps per second).
(1)The Hertz (symbol: Hz) is a unit of frequency. It is defined as the number of cycles per second.
(2)Transmission d’une onde à l’interface paroi thoracique-poumon, page 98.(3)Report of the Workshop on Acoustic Resonance as a Source
of Tissue Trauma in Cetaceans, 2002, page 8.
To try the FREQUENCER™
Contact DYMEDSO directlyby phone at 1-877-396-3376
by email at [email protected]
www.dymedso.com901A Du Cure Boivin Blvd., Boisbriand, Quebec, Canada J7G 2S8
1 877.DYMEDSO (396.3376) [email protected]
TM
REV. 11.04.15
Cross-section of patients' chest
Mechanicalimpulse
Mechanicalimpulse
Electro-acousticaltransducer
Accoustical impulse
Cross-section of patients' chestCross-section of patients' chest
For hospital and home settings1. Easy set up
Can be used throughout the hospital (ICU, adult, paediatrics, nursery...)
No fitting or moving the patient
Ideal when faced with special patient conditions (obese, G-tube, trauma, ...)
Treatment on one side only
More autonomy for patient at home
2.Efficient No limit to number of treatments per day or per patient
Assurance of quality treatment every time and for entire treatment duration
Four sizes of adapters to optimise treatment on patients of all ages
Smallest 1” adapter can be ordered with 72” flexible hose for easier treatment
3.Gentle Provide considerably lower forces than applied during Conventional Chest Physiotherapy (CCPT)
With such a gentle treatment, a patient already weakened by his condition can clear his lungs
2-3 times a day
4.Targeted The Frequencer™ uses a transducer to concentrate acoustic waves in the chest and target
more effectively specific areas of the lungs
It makes it possible to treat certain areas more often and for longer periods of time while
reducing treatment time on less affected areas
5.Added protection No danger of injury to caregiver (shoulder, elbow, wrist…)
With permanent adapters for home use (V2) or disposable adapters with filter to reduce
risk of infections in hospitals (V2x)
6.Quiet Will not interfere with other patients’ activities when sharing a room
Only emits 65 dB (sound of human laughter)
The FrequencerTM is easy to operate
START/PAUSE button to begin treatment
or suspend temporarily
Frequency level indicator from 20 to 65 Hz
Suggested levels oftreatment intensity for
patients of variousages and sizes
Slide button to rapidlyraise or lowerfrequency level
6 suggested chest treatment areas3 minutes each
A transducer targets treatment in specific areas of the lungs
The control unit generates acoustic waves at different frequency levels and treatment intensities
V2 home version comes with foam padded carrying case with rollers for storage and easy transportation
V2x version for hospital comes with a fixation plate underneath to affix on a roll stand
Smallest 1”adapter can be ordered with 72” flexible
hose for easier treatment
With permanent adaptersfor home use (v2) ordisposable adapters withfilter in hospitals (v2x)
Slide buttonto rapidly change
treatment intensity
Treatment intensity indicator from 0-100%
MENU button offers additional features:
language: Choice of languages
3-minute beep: Every 3 minutes
default settings: Baby level or Child level
lock settings: Secure changes to frequency level and treatment intensity
v2 v2x
TM
by
901 A, Du Cure Boivin Blvd., Boisbriand, Quebec, Canada J7G 2S8
T: 450.437.7354 1.877.DYMEDSO (396.3376) F: 450.437.2063
Cross-section of patients' chest
Mechanicalimpulse
Mechanicalimpulse
Electro-acousticaltransducer
Accoustical impulse
Cross-section of patients' chestCross-section of patients' chest
For hospital and home settings1. Easy set up
Can be used throughout the hospital (ICU, adult, paediatrics, nursery...)
No fitting or moving the patient
Ideal when faced with special patient conditions (obese, G-tube, trauma, ...)
Treatment on one side only
More autonomy for patient at home
2.Efficient No limit to number of treatments per day or per patient
Assurance of quality treatment every time and for entire treatment duration
Four sizes of adapters to optimise treatment on patients of all ages
Smallest 1” adapter can be ordered with 72” flexible hose for easier treatment
3.Gentle Provide considerably lower forces than applied during Conventional Chest Physiotherapy (CCPT)
With such a gentle treatment, a patient already weakened by his condition can clear his lungs
2-3 times a day
4.Targeted The Frequencer™ uses a transducer to concentrate acoustic waves in the chest and target
more effectively specific areas of the lungs
It makes it possible to treat certain areas more often and for longer periods of time while
reducing treatment time on less affected areas
5.Added protection No danger of injury to caregiver (shoulder, elbow, wrist…)
With permanent adapters for home use (V2) or disposable adapters with filter to reduce
risk of infections in hospitals (V2x)
6.Quiet Will not interfere with other patients’ activities when sharing a room
Only emits 65 dB (sound of human laughter)
The FrequencerTM is easy to operate
START/PAUSE button to begin treatment
or suspend temporarily
Frequency level indicator from 20 to 65 Hz
Suggested levels oftreatment intensity for
patients of variousages and sizes
Slide button to rapidlyraise or lowerfrequency level
6 suggested chest treatment areas3 minutes each
A transducer targets treatment in specific areas of the lungs
The control unit generates acoustic waves at different frequency levels and treatment intensities
V2 home version comes with foam padded carrying case with rollers for storage and easy transportation
V2x version for hospital comes with a fixation plate underneath to affix on a roll stand
Smallest 1”adapter can be ordered with 72” flexible
hose for easier treatment
With permanent adaptersfor home use (v2) ordisposable adapters withfilter in hospitals (v2x)
Slide buttonto rapidly change
treatment intensity
Treatment intensity indicator from 0-100%
MENU button offers additional features:
language: Choice of languages
3-minute beep: Every 3 minutes
default settings: Baby level or Child level
lock settings: Secure changes to frequency level and treatment intensity
v2 v2x
TM
by
901 A, Du Cure Boivin Blvd., Boisbriand, Quebec, Canada J7G 2S8
T: 450.437.7354 1.877.DYMEDSO (396.3376) F: 450.437.2063
Cross-section of patients' chest
Mechanicalimpulse
Mechanicalimpulse
Electro-acousticaltransducer
Accoustical impulse
Cross-section of patients' chestCross-section of patients' chest
For hospital and home settings1. Easy set up
Can be used throughout the hospital (ICU, adult, paediatrics, nursery...)
No fitting or moving the patient
Ideal when faced with special patient conditions (obese, G-tube, trauma, ...)
Treatment on one side only
More autonomy for patient at home
2.Efficient No limit to number of treatments per day or per patient
Assurance of quality treatment every time and for entire treatment duration
Four sizes of adapters to optimise treatment on patients of all ages
Smallest 1” adapter can be ordered with 72” flexible hose for easier treatment
3.Gentle Provide considerably lower forces than applied during Conventional Chest Physiotherapy (CCPT)
With such a gentle treatment, a patient already weakened by his condition can clear his lungs
2-3 times a day
4.Targeted The Frequencer™ uses a transducer to concentrate acoustic waves in the chest and target
more effectively specific areas of the lungs
It makes it possible to treat certain areas more often and for longer periods of time while
reducing treatment time on less affected areas
5.Added protection No danger of injury to caregiver (shoulder, elbow, wrist…)
With permanent adapters for home use (V2) or disposable adapters with filter to reduce
risk of infections in hospitals (V2x)
6.Quiet Will not interfere with other patients’ activities when sharing a room
Only emits 65 dB (sound of human laughter)
The FrequencerTM is easy to operate
START/PAUSE button to begin treatment
or suspend temporarily
Frequency level indicator from 20 to 65 Hz
Suggested levels oftreatment intensity for
patients of variousages and sizes
Slide button to rapidlyraise or lowerfrequency level
6 suggested chest treatment areas3 minutes each
A transducer targets treatment in specific areas of the lungs
The control unit generates acoustic waves at different frequency levels and treatment intensities
V2 home version comes with foam padded carrying case with rollers for storage and easy transportation
V2x version for hospital comes with a fixation plate underneath to affix on a roll stand
Smallest 1”adapter can be ordered with 72” flexible
hose for easier treatment
With permanent adaptersfor home use (v2) ordisposable adapters withfilter in hospitals (v2x)
Slide buttonto rapidly change
treatment intensity
Treatment intensity indicator from 0-100%
MENU button offers additional features:
language: Choice of languages
3-minute beep: Every 3 minutes
default settings: Baby level or Child level
lock settings: Secure changes to frequency level and treatment intensity
v2 v2x
TM
by
901 A, Du Cure Boivin Blvd., Boisbriand, Quebec, Canada J7G 2S8
T: 450.437.7354 1.877.DYMEDSO (396.3376) F: 450.437.2063
Infrasound covers sounds below 20 Hz down to 0.001 Hz.
Sound is within the range of human hearing which is normally limited to frequencies between 20 Hz and 20 000 Hz (20 KHz). The Frequencer™ operates at frequencies between 20-65 Hz.
Ultrasound covers frequencies greater than the upper limit of human hearing. The most well known application is its use in sonography and echography. Muscles, tendons, breast and neonatal brain are imaged at frequencies in the millions of Hz (7-18 MHz).
ACOUSTICS
Acoustic airway clearance device
www.dymedso.com
Basic knowledge on acoustics1. Acoustics is the study of sound, ultrasound and infrasound.
2. An interesting study was performed at the Université de Paris that assessed the depth to which mechanical and acoustical waves could travel into the chest cavity. The study revealed that mechanical waves cause strong surface effects but diminish rapidly with distance travelled into the chest, while acoustical waves are weaker on the surface, but diminish little with distance.
3. A great feature of sound is the body’s tendency to absorb more energy at a frequency that matches its own natural frequency of vibration (its resonant frequency) than it does at other frequencies.
A body will easily vibrate at this frequency and vibrate less strongly at other frequencies.
In fact, it filters out all frequencies other than its own resonant frequency.
4. In a 2002 U.S. Department of Commerce study, the human lung resonant frequency was determined to be in the range of 40-42 Hz. Like with the pipe organ analogy, where smaller, shorter pipes play higher sounds, the resonant frequency of smaller passages and those clogged with mucus is higher than the primary chest resonance, since their diameter and length is smaller, and their stiffness is higher.
The Frequencer™ can easily be set at specific frequencies ranging from 20 Hz to 65 Hz to match airway resonant frequency.
The HFCWO mechanical air compressors operate at around 12-16 Hz.
CPT is rarely more than 3-4 Hz (or claps per second).
(1)The Hertz (symbol: Hz) is a unit of frequency. It is defined as the number of cycles per second.
(2)Transmission d’une onde à l’interface paroi thoracique-poumon, page 98.(3)Report of the Workshop on Acoustic Resonance as a Source
of Tissue Trauma in Cetaceans, 2002, page 8.
To try the FREQUENCER™
Contact DYMEDSO directlyby phone at 1-877-396-3376
by email at [email protected]
www.dymedso.com901A Du Cure Boivin Blvd., Boisbriand, Quebec, Canada J7G 2S8
1 877.DYMEDSO (396.3376) [email protected]
TM
REV. 11.04.15
Infrasound covers sounds below 20 Hz down to 0.001 Hz.
Sound is within the range of human hearing which is normally limited to frequencies between 20 Hz and 20 000 Hz (20 KHz). The Frequencer™ operates at frequencies between 20-65 Hz.
Ultrasound covers frequencies greater than the upper limit of human hearing. The most well known application is its use in sonography and echography. Muscles, tendons, breast and neonatal brain are imaged at frequencies in the millions of Hz (7-18 MHz).
ACOUSTICS
Acoustic airway clearance device
www.dymedso.com
Basic knowledge on acoustics1. Acoustics is the study of sound, ultrasound and infrasound.
2. An interesting study was performed at the Université de Paris that assessed the depth to which mechanical and acoustical waves could travel into the chest cavity. The study revealed that mechanical waves cause strong surface effects but diminish rapidly with distance travelled into the chest, while acoustical waves are weaker on the surface, but diminish little with distance.
3. A great feature of sound is the body’s tendency to absorb more energy at a frequency that matches its own natural frequency of vibration (its resonant frequency) than it does at other frequencies.
A body will easily vibrate at this frequency and vibrate less strongly at other frequencies.
In fact, it filters out all frequencies other than its own resonant frequency.
4. In a 2002 U.S. Department of Commerce study, the human lung resonant frequency was determined to be in the range of 40-42 Hz. Like with the pipe organ analogy, where smaller, shorter pipes play higher sounds, the resonant frequency of smaller passages and those clogged with mucus is higher than the primary chest resonance, since their diameter and length is smaller, and their stiffness is higher.
The Frequencer™ can easily be set at specific frequencies ranging from 20 Hz to 65 Hz to match airway resonant frequency.
The HFCWO mechanical air compressors operate at around 12-16 Hz.
CPT is rarely more than 3-4 Hz (or claps per second).
(1)The Hertz (symbol: Hz) is a unit of frequency. It is defined as the number of cycles per second.
(2)Transmission d’une onde à l’interface paroi thoracique-poumon, page 98.(3)Report of the Workshop on Acoustic Resonance as a Source
of Tissue Trauma in Cetaceans, 2002, page 8.
To try the FREQUENCER™
Contact DYMEDSO directlyby phone at 1-877-396-3376
by email at [email protected]
www.dymedso.com901A Du Cure Boivin Blvd., Boisbriand, Quebec, Canada J7G 2S8
1 877.DYMEDSO (396.3376) [email protected]
TM
REV. 11.04.15