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Allied Healthcare Products, Inc.

American manufacturer of emergency medical, respiratory and medical gas equipment, operating as Allied Medical LLC under the Flexicare Group.

Last updated September 26, 2026

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Overview

Allied Healthcare Products, Inc. is an American manufacturer of emergency medical products, respiratory devices and medical gas construction equipment. The company's roots trace back to the 1930s, when it began as the medical service division of National Cylinder Gas (NCG) in Chicago, supplying cylinder gases to hospitals. In 1947 the company developed the Chemetron® medical gas piping system, which allowed gases to be delivered from an external source directly to the point of use, eliminating the need to move heavy cylinders between floors. In June 1977 Chemetron acquired Gomco®, a well-known maker of portable aspirators and drainage pumps. This combination of established healthcare trade names led the business to adopt the name Allied Healthcare Products, Inc. in 1980. Over the following decades Allied expanded through acquisitions and became a provider of medical gas delivery systems, respiratory therapy equipment and emergency medical products. Its product range includes ventilators such as the AHP300™ transport ventilator, LithoLyme™ CO2 absorbent, LSP® emergency portable suction units, OptiVac™ portable suction units, Gomco® circumcision clamps, suction regulators and aspirators, and complete medical gas systems for hospitals and patient care. The company serves hospitals, emergency medical services, home care and other clinical environments, and markets its products worldwide. In 2023 Allied became part of the Flexicare Group, a global medical device manufacturer. Today it operates as Allied Medical LLC, continuing to supply emergency medical, respiratory and medical gas products under its established brands. The company emphasizes clinical outcomes, customer service and competitive pricing, and has relocated to a new facility as part of its ongoing operations.

History

Allied Healthcare Products traces its origins to the 1930s, when it operated as the medical service division of National Cylinder Gas (NCG) in Chicago. NCG produced gases in cylinders and sold them to hospitals in the 1930s and early 1940s. Because these cylinders had to be transported from floor to floor, the company sought a safer and more efficient solution. In 1947 it developed the Chemetron® medical gas piping system, which directed medical gases from an external source to the point of use, eliminating the need to handle heavy cylinders. In June 1977, Chemetron acquired Gomco®, a recognized manufacturer of portable aspirators and portable surgical, post-operative and home care drainage pumps. This acquisition brought together several established healthcare product lines and trade names. Reflecting this broader alliance, the company adopted the name Allied Healthcare Products, Inc. in 1980. Through subsequent acquisitions, Allied became a provider of medical gas delivery systems, which regulate and monitor the flow of medical gases and play a critical role in patient care. The company also strengthened its position in respiratory therapy and emergency medical products, and pursued partnerships with leading research universities to develop new products and improve existing ones. Allied Healthcare Products operated as a publicly traded company for many years, manufacturing in the United States and selling worldwide. Its product portfolio grew to include ventilators, CO2 absorbents, suction regulators and aspirators, medical gas systems, and specialized devices such as Gomco® circumcision clamps. In 2023, the business became part of the Flexicare Group, a global medical device manufacturer. It now operates as Allied Medical LLC, continuing to supply emergency medical, respiratory and medical gas products. The company has also relocated to a new facility as part of its ongoing operations.

  • 2023

    Allied Medical LLC becomes part of the Flexicare Group.

  • 1980

    Company adopts the name Allied Healthcare Products, Inc.

  • 1977

    Chemetron acquires Gomco®, a maker of portable aspirators and drainage pumps.

  • 1947

    Development of the Chemetron® medical gas piping system.

  • 1930

    Origins as the medical service division of National Cylinder Gas (NCG) in Chicago.

Products and positioning

A worldwide supplier of emergency medical, respiratory and medical gas products, emphasizing clinical outcomes, customer service and competitive pricing.

  • AHP300™ Transport Ventilator

    A transport ventilator designed for everyday transport or evacuation from extreme environments.

  • LithoLyme™ CO2 Absorbent

    Efficient CO2 absorption allowing 30% longer use than other premium CO2 absorbents.

  • LSP® Emergency Portable Suction Unit

    Designed for emergency medical personnel in the field and for use within ambulances and helicopters.

  • OptiVac™ Portable Suction Unit

    The standard for crash cart suction, featuring a compact design, rechargeable battery and AC power supply.

  • Gomco® Circumcision Clamps

    Chrome-plated circumcision clamps available in a variety of sizes for different glans diameters.

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