LivaNova has been granted a patent for an oxygenator that includes a housing with a blood inlet and outlet, a heat exchanger, and a gas exchanger with a bundle of gas-exchange fibers. The oxygenator also includes an insulating chamber to thermally insulate the gas outlet end of the fibers. The insulating chamber receives a separate insulating fluid from the blood. GlobalData’s report on LivaNova gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on LivaNova, Wearable defibrillators was a key innovation area identified from patents. LivaNova's grant share as of September 2023 was 66%. Grant share is based on the ratio of number of grants to total number of patents.

The patent is granted for an oxygenator with thermal insulation

Source: United States Patent and Trademark Office (USPTO). Credit: LivaNova Plc

A recently granted patent (Publication Number: US11771810B2) describes an oxygenator designed to oxygenate blood as it flows through the device. The oxygenator consists of a housing with a blood inlet and outlet, a heat exchanger, and a gas exchanger. The heat exchanger is connected to a heat-exchange fluid inlet, while the gas exchanger includes a bundle of gas-exchange fibers connected to a gas-exchange fluid outlet. The heat exchanger is positioned concentrically within the gas exchanger.

One unique feature of this oxygenator is the inclusion of an insulating chamber that thermally insulates the gas outlet end of the gas-exchange fibers. This insulating chamber is designed to receive a flowing insulating fluid that is different from the blood flowing through the oxygenator. The gas outlet end of the fiber bundle is embedded within a potting material, and at least a portion of the insulating chamber is located radially outward of the potting material, upstream of the gas outlet end.

The patent also mentions the use of an insulating material to further thermally insulate the gas outlet end of the fiber bundle. This insulating material is transparent and can be in the form of transparent paint or adhesive tape.

The insulating fluid used in the oxygenator can be a portion of the heat-exchange fluid being provided to the device. Additionally, there is a conduit outside of the oxygenator housing that supplies the insulating fluid to the insulating chamber.

The insulating chamber can partially or fully surround the housing of the oxygenator, and it is partially defined by a channel in the inner surface of the second end cap. The patent also describes the presence of connecting channels in the second end cap that facilitate the flow of the insulating fluid between the heat-exchange fluid inlet and outlet channels and the insulating chamber.

In summary, this granted patent describes an oxygenator with an innovative design that includes an insulating chamber to thermally insulate the gas outlet end of the gas-exchange fibers. This insulating chamber can be filled with a flowing insulating fluid, and the oxygenator may also feature an insulating material on its outer surface. These features aim to improve the efficiency and performance of the oxygenator in oxygenating blood.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.