A unique discovery by a patient and inventor, Louis Plante, and the ongoing commitment to patient quality of life by a dedicated management team, turn the power of acoustics into a medical innovation.


Dymedso is incorporated by Louis Plante and Yvon Robert


With the support of the Canadian Cystic Fibrosis Foundation, the Centre Hospitalier Universitaire de Sherbrooke and the Centre Hospitalier de l’Université de Montréal conduct a clinical study to demonstrate the safety and effectiveness of the Frequencer® to help clear secretions from the airways of individuals with Cystic Fibrosis.

Read the Frequencer® Clinical Study

Dymedso launches its first digitally-controlled acoustic airway clearance device and obtains Health Canada license.


A Proof of Concept by Maisonneuve-Rosemont Hospital in Montreal, QC, Canada, shows the efficiency of the Frequencer® compared to conventional airway drainage methods (Acapella, Flutter, Percussor, and Clapping).

Frequencer® is approved by the US Food & Drug Administration.


University of California San Diego Medical Center demonstrates the Frequencer® could safely be considered a preferred method by both patients and respiratory care practitioners for sputum production when treating Cystic Fibrosis.

Read the UCSD Adult CF Study

NICU of renowned California hospital purchases Frequencer® for use with neonatal patients.


Dymedso obtains the CE mark demonstrating the Frequencer® meets the EU standards for health, safety and environmental protection.


Louis Plante is internationally honored with Patient Innovation Award


A study by the California Pacific Medical Center uses the Frequencer® for treatment of atelectasis, pneumonia, CF, RSV bronchiolitis and neuromuscular disease in pediatric patients to demonstrate shortened length of stay in the hospital.


Dymedso becomes a woman-led firm with Kim Anderson becoming the President.

Dymedso distributes 24 Frequencer® devices to twelve Québec healthcare institutions to treat COVID-19.

Read the Press Release


Dymedso distributes 29 devices to Toronto Grace Hospital for COVID-19 treatment and post-COVID rehab

Read the Press Release

National Korányi Institute shows effectiveness of Frequencer® vs HFCWO