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Tim Callahan

As Transonic’s Director of Clinical Sales & Marketing, Tim Callahan brings a wealth of experience from a long career in medical device sales and marketing that included the position as VP and General Manager for Global Physical Assessment Business for Welch Allyn of Skaneateles, NY. Tim adds his expertise in value messaging, strategic planning, pricing, contract negotiations and business development to the Transonic marketing mix as the company expands its blood flow measurement surgical device offerings to its global market.

Recent Posts

27 Sep 2021

Robotic IMA Harvesting CABG Protocol from Dr. Francis Sutter

Dr. Francis Sutter has performed more robotic-assisted CABG surgeries than any other surgeon in the country, ...
27 Sep 2021

Robotic IMA Harvesting CABG Protocol from Dr. Francis Sutter

Dr. Francis Sutter has performed more robotic-assisted CABG surgeries than any other surgeon in the country, ...
21 Jul 2021

News from STS's 57th Annual Meeting

Earlier this year, the Society of Thoracic Surgeons (STS) hosted its 57th annual meeting, with more than 2,700...
21 Jul 2021

News from STS's 57th Annual Meeting

Earlier this year, the Society of Thoracic Surgeons (STS) hosted its 57th annual meeting, with more than 2,700...
14 Jun 2021

How COVID-19 is Affecting Cardiac Surgery

Research presented at the 57th annual meeting of the Society for Thoracic Surgeons (STS) revealed that COVID-19...
14 Jun 2021

How COVID-19 is Affecting Cardiac Surgery

Research presented at the 57th annual meeting of the Society for Thoracic Surgeons (STS) revealed that COVID-19...
09 Jun 2021

Top Cardiothoracic Surgeons of 2021 and Trends to Watch

On Sept. 9, 1896, Ludwig Rehn successfully closed a heart stab wound with direct suture. This event is widely...
09 Jun 2021

Top Cardiothoracic Surgeons of 2021 and Trends to Watch

On Sept. 9, 1896, Ludwig Rehn successfully closed a heart stab wound with direct suture. This event is widely...
05 Feb 2018

Transonic’s 354C Optima Flowmeter Simplifies Graft Patency Assessment for Surgical Decision-making

The new flowmeter deciphers waveforms for graft patency during CABG procedures Early graft failure after Coronary...
05 Feb 2018

Transonic’s 354C Optima Flowmeter Simplifies Graft Patency Assessment for Surgical Decision-making

The new flowmeter deciphers waveforms for graft patency during CABG procedures Early graft failure after Coronary...