About Dr Dave

Dr Dave likes to say "Hey, I'm just some guy making mouthpieces in my garage", but there is a bit more to it than that. Details are below for anyone who might be interested.

Medical Career

Dr Dave is a medical doctor, recently retired, who specialized in Emergency Medicine and Hyperbaric Medicine. During his medical career he was a Clinical Professor in the Department of Emergency Medicine at the University of British Columbia, an attending physician in the Emergency Department of Vancouver General Hospital, Director of the Royal Training Program in Emergency Medicine at UBC, Vice President of the Canadian Undersea and Hyperbaric Medical Association, and Head of Hyperbaric Medicine at Vancouver General Hospital.


Dr Dave began playing trumpet in high school band class and has continued to play his entire life in community concert bands, in church, and for nearly 20 years as the principal trumpet of the Richmond Orchestra. He is currently a member of the Gabriola Brass Quintet. He invented the Wedge mouthpiece in 2007 and continues to personally design and machine every mouthpiece produced by Harrison Mouthpieces.

Other Activities

Dr Dave's other activities include martial arts, archery, blacksmithing, knifemaking, and teaching and promoting personal safety through Kidpower International.


Kidpower is the global nonprofit leader in personal safety education for all ages, teaching skills for strong relationships and the prevention of harm. Dr Dave has been involved with Kidpower for almost 20 years as a certified Full Force Instructor, Center Director and Senior Program Leader for Kidpower Vancouver, member of the Instructor Training team, and most recently as a member and medical advisor to the Kidpower Board. Harrison mouthpieces supports Kidpower International financially, and by promoting their activities on this website and through social media.

If you would like to learn more about Kidpower International you can visit their website where you will find loads of information and resources related to personal safety, bullying, preventing child abuse, assault prevention, preventing domestic violence, and empowerment for people of all ages.

You can also learn about Kidpower by contacting Dr Dave. He would be very happy to answer any questions you might have.

Dr Dave currently lives on Gabriola Island near Vancouver, BC with his Liz, his very understanding wife of 35 years. He has two wonderful adult daughters, Sarah and Rachel.