MUMBAI, India, July 7 -- Intellectual Property India has published a patent application (202527092789 A) filed by National University Corporation Kobe on September 26, 2025, for Antegrade Blood-Sending Cannula.
Inventors include Konishi Akihide; and Yagi Takahiro Number.
The application for the patent was published on July 03, 2026, under issue no. 27/2026.
Abstract: Provided is a cannula with which it is possible to effectively and antegradely send blood from the ascending aorta, while reducing the diameter. This cannula, in which the distal end part thereof is disposed in the ascending aorta and blood fed from an external- membrane-type artificial lung is sent antegradely from the ascending aorta, comprises an antegrade blood return part 2 and a blood- sending tube 4, the antegrade blood return part 2 being provided at the distal end of the blood-sending tube 4. A guide wire tube 5 extending in the longitudinal direction from the base end part to the distal end part is disposed substantially at the center of the axis inside the antegrade blood-sending cannula 1. The blood-sending tube 4 is a tube provided on the base end side connected to the extracorporeal-membrane-type artificial lung. The antegrade blood return part 2 reverses the blood in the antegrade direction from the reverse direction and directs the blood toward the base end side, and is composed of a first blood return tube 6 provided on the base end side and a second blood return tube 7 provided on the distal side. The second blood return tube 7 is provided with a side hole 7a and a side hole 7b, and a part of a substantially hemispherical bag body 8 is adhered to the inside of the distal end.
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