Ohio Medical is a global leader of medical air and vacuum pumping systems and medical suction and oxygen therapy devices. Our trusted brands include Ohio Medical and Amvex medical suction regulators, Ohio Medical and Amvex air and oxygen flow meters, medical air and vacuum pumping systems, and portable suction equipment. Ohio Medical meets applicable regulatory requirements in the countries where we make and sell our products. Ohio Medical operates in a registered FDA regulated medical device manufacturing facility and complies with ISO 13485 and ISO 9001 standards. All Ohio Medical medgas products are produced to comply with NFPA 99 standards. With a dedicated team of industry experts, Ohio Medical takes great pride in providing our customers with high quality, innovative solutions to meet the challenges of today’s marketplace.



The history of the “Ohio” name dates back more than 100 years ago to the Ohio Chemical and Manufacturing Company founded in Cleveland, Ohio. In 1910 the company began manufacturing one of the first anesthesia gas machines, The Ohio Monovalve, which was used extensively during World War I.

Squire-Cogswell, founded in Chicago, Illinois in 1916, was a vital contract manufacturer for Ohio Chemical. They developed and manufactured medical gas, suction and oxygen therapy equipment, including hospital vacuum regulators, custom vacuum pumping systems, and medical air compressor systems for healthcare applications. Squire-Cogswell achievements include inventing and patenting the “Diamond 1” (also known as the “Ohio Diamond”) medical gas adapter in 1951, inventing the first wall mounted intermittent suction device used for patient drainage in 1964, and introducing the first portable suction pump in 1975.

In 2005, Ohio Medical LLC was formed. The foundation of the newly formed company included the acquisitions of the Ohmeda® suction and oxygen therapy business from GE Healthcare, and the Squire-Cogswell/Aeros company which manufactured portable suction equipment, medical and industrial pumping systems, and medical gas pipeline products.

In 2007, Ohio Medical LLC acquired Amvex. This greatly expanded the portfolio of suction and oxygen therapy products by including a global market leadership position for medical gas hoses, patented technologies for digital gauge suction regulators and dual port wall mounted integrated air and oxygen flow meters.

The next technological breakthrough came with the introduction of the Ohio Medical Push-To-Set™ (PTS) suction regulator. The PTS Regulator is the first suction regulator to address a potential national healthcare concern regarding inadvertent “over-suctioning” by incorporating the patented technology of an automated occlude-to-set feature, critical in setting appropriate vacuum pressure levels.

In 2010, Ohio Medical acquired MiniOx®, a long-standing leader of oxygen monitoring and analyzing products. MiniOx has a long history of serving the medical community and its rich history continues at Ohio Medical. In 2016, Tenex Capital Management completed the acquisition of Ohio Medical.

We are proud of the “Ohio” name and the significant impact our products have had on the medical industry and the patients we serve. Our brands stand proudly for patient safety, innovation, and quality products and have done so for more than 100 years!