Doctor Vox DC-Valve User manual

Troubleshooting
Make sure that the DC-Valve device is open position. (the line on the adjusting knob shows tube-ends of the
device. Then you can gradually turn the knob and increase the backpressure.
Care of the DC-Valve
doctorVOX DC-Valve is specially designed to be used with doctorVOX products. It is made of high-quality polymer to
provide maximum hygiene conditions. It can be hand-washed with hot water and a little detergent.
Precautionary Statements
Device will be DELETERIOUS if totally or partially broken. Only for use when mounted to related devices (maskVOX
and doctorVOX Apparatus) defined by the manufacturer. Do not hold on fire! doctorVOX DC-Valve is not a toy.
Choking hazard: Please keep out of the reach of children and domestic animals. For respiratory training, use proper
assembly of the devices defined by the manufacturer and read this manual carefully.
Warranty
We guarantee to replace our products in case of material or manufacturing defects which occur during the warranty
period of two years from the date of sale. Natural discoloration, scratches due to daily use, damage due to improper
use, incorrect cleaning, incorrect storage or intervention by third parties are not covered by the warranty. The proof of
purchase must be enclosed in the event of a warranty claim. Guarantee services are provided by Doctor Vox Health
Services and Medical Systems Ltd, Sumer 2 Street No:37/9 06420 Kizilay Ankara TURKEY. www.doctorvox.com
Legal information
These operating instructions contain the information required for proper use, correct operation and proper
maintenance. Knowledge of and adherence to the instructions contained in this operating manual are prerequisites for
safe use. Treatment and training must be supervised by competent clinicians and pedagogues.
This operating manual contains information and graphics which are protected by copyright. Photocopying, copying or
translating into another language for commercial purposes is not permitted without the prior written consent of Doctor
Vox Health Services and Medical Systems Ltd. 06420 Ankara TURKEY.
Contact Us
Do you have any questions or concerns?
Send us an email: [e-mail]
Phone: [phone]
© Doctor Vox Health Services and Medical Systems Ltd
Thank you for purchasing the doctorVOX DC- Valve.
This is an original DoctorVox Voice Therapy and Vocal Training product. doctorVOX DC- Valve is made of high quality
polymer material. Please read these instructions for correct use and keep the manual for future reference. Should you
require further information or should problems arise that are not described in this manual, please contact us directly
for the required information. If these instructions for use are printed too small for you, please request the required
information directly from [e-mail]
Package Contents:
One doctorVOX DC- Valve
Important Notes
POM-C (polyoxymethylene copolymer) is an FDA approved material for repeated food
contact, sustainable hygiene and has a long lifespan when used properly.
doctorVOX Apparatus and its accesorries are not toys, and should not be left in the
hands of children under the age of 3: Risk of swallowing, suffocation, and strangulation!
Device will be DELETERIOUS if totally or partially broken. DO NOT USE IN THAT CASE!
Handle with care, keep it in its specially designed bag when not in use.
If you suffer from dizziness, convulsions or fainting, use the device only under
supervision. Risk of falling and, suffocation.
DO NOT use the device and drive!
If your voice feels tired or tense, take a break. Try using less backpressure. If the problems reoccur, consult your
doctor, an ENT, vocal coach, speech therapist, or respiratory therapist.
If doctorVOX Apparatus is used by other people, the device must be cleaned/disinfected thoroughly (i.e. hand-
washed with hot water and kitchen-detergent, or swiped with a proper disinfecting swab) for hygienic reasons.
Product Specification
doctorVOX DC- Valve is a SOVT (Semi-Occluded Vocal Tract) tool that provides DC support your voice during
vocal training and voice therapy.
doctorVOX DC- Valve can be used to close the glottal gaps, vocal warm-up, and cool-down practice.
With doctorVOX DC- Valve used with maskVOX or doctorVOX Apparatus, you can quickly prepare yourself for
vocal performances like concerts, shows, auditions, lectures, conferences, etc.
You can use DC-Valve with the doctorVOX Apparatus or maskVOX for respiratory training.
Description of the Device
1. Adjusting knob
2. maskVOX mounting end
3. doctorVOX apparatus mounting end
DoctorVOX DC-Valve
Instruction Manual

The Adjustment of backpressure
The back-pressure adjustment is made by the DC-Valve in addition to the level of the water in the Container. When
used with the mask only, there will be a DC backpressure adjusted by the user.
Description of Use
Before the First Use
Thoroughly hand-wash the DC-Valve with water and a small amount of house detergent; then rinse and dry.
Assembly
For doctorVOX Apparatus insert the straight (slightly conic) end of the device into the inhalatory outlet and slightly
push it until a firm closure occurs. You can keep the adjusting knob any side.
For maskVOX, insert the ridged end of the device into the outlet of the maskVOX and feel the ‘click’ sensation when it
is fixed properly.
For disassembling device:
Slightly rotate and pull the DC-Valve from the outlet tube of the doctorVOX device or,
Slightly bend and pull the DC-Valve from the outlet of the maskVOX device.
How It Works
The physiological effect of the DC-Valve is based on continuous (DC) backpressure. Thanks to this continuous
backpressure, the work of the vocal folds becomes easier and safer. It helps vocal muscle developing and closure of
functional glottic gaps when used properly. At the same time, the respiratory muscles work properly and strengthen,
as they have to overcome the water resistance in addition to the tuning.
Phonation into the maskVOX mounted DC-Valve
When used with maskVOX , continuous backpressure is on duty.
After mounting the DC-Valve to the outlet of the maskVOX properly (please feel the dovetailing between two
devices)
Wear the mask properly and adjust the predefined backpressure by the adjusting knob of the DC-Valve.
Phonation into the doctorVOX Apparatus mounted DC-Valve
When used with doctorVOX Apparatus, the water level in the Container should be at the level 2 in the beginning.
After mounting the doctorVOX DC-Valve to the inhalatory end (marked as ‘OUT’); take the phonatory end of the
tube (marked as “IN” ) slightly between your teeth (Do not bite or narrow the silicone tube).
The tongue lies relaxed behind the lower teeth. The lips enclose the end of the tube with a "kiss" without pressure,
but airtight.
Now blow and let the water bubble regularly. Increase the backpressure as described by the supervisor (clinician or
pedagogue)
Phonate into tube with the same regular bubbling pattern. (The primal sound is supposed to be found for this)
Hold this tone and let the water bubble in a stable manner.
Take care to keep your cheeks loose and vibrating with the bubbling. The jaw muscles should also be relaxed.
Imagine your neck and throat wide and soft.
Exercise with the primal sound for few minutes, three to ten times throughout the day.
It helps developing your voice when used properly with a professional guidance.
Respiratory training with doctorVOX Apparatus mounted DC-Valve
Fill the Container with warm water (Not above 50°C/ 1220F)
Adjust the amount of liquid so that the water level does not exceed the level 2.
Place the upper part to the container and lock the device by locker clips.
Mount the DC-Valve to the inhalatory end of the doctorVOX device
FOR THE INHALATORY TRAINING:
Enclose the inhalatory end of the DC-Valve between your lips (be careful for the teeth injury)
Adjust the resistance by the adjusting knob of the DC-Valve
Breathe in slowly through the inhalatory tube end. Be careful not to inhale hot water by breathing too fast and too
much!
FOR THE EXHALATORY TRAINING (Positive Expiratory Pressure- PEP)
Enclose the exhalatory end of the tube (marked as “OUT”) between your lips (be careful for the teeth injury, use
the silicone tip))
Adjust the resistance by the adjusting knob of the DC-Valve
Breathe out slowly through the exhalatory tube end. Be careful not to push too much!
If you feel dizzy, stop exercise. Take a break for a few minutes and try again: breathe more slowly and take a break
after each exhalation until you feel the renewed urge to inhale.
Videos
On the official website of your country you will find an extensive video library in English with instructions,
explanations and further exercises. Visit: www.doctorvox.com or “DoctorVox Voice Therapy” on YouTube.