Avinger‘s patented catheters for Optical Coherence Tomography (OCT) feature a unique design with mismatched refractive indexes to reduce noise levels. The method involves inserting the catheter into a blood vessel, providing optical radiation, receiving reflections, and generating images of the vessel’s interior. GlobalData’s report on Avinger 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 Avinger, Transcranial ultrasound was a key innovation area identified from patents. Avinger's grant share as of January 2024 was 54%. Grant share is based on the ratio of number of grants to total number of patents.

Catheter for optical coherence tomography imaging of blood vessels

Source: United States Patent and Trademark Office (USPTO). Credit: Avinger Inc

A recently granted patent (Publication Number: US11839493B2) discloses a method for imaging the interior of a blood vessel using an optical coherence tomography catheter system. The method involves inserting a catheter with an optical fiber into the blood vessel, where the distal end of the fiber is embedded in a reference medium. Optical radiation is provided to the core of the fiber, with the reference medium reflecting a portion back into the core and transferring another portion to a target within the vessel. Reflected optical radiation is received and used to generate an image of the target, with the option to rotate the fiber to capture multiple images at different angles.

Furthermore, the patent details the use of a solid transparent adhesive as the reference medium, such as epoxy, and the operation of electronics within a total noise range close to the shot noise limit. The method also involves cutting an occlusion within the blood vessel using a cutter attached to the catheter. The optical fiber, operating with a swept-frequency source, can rotate relative to the target to capture images at different angles. The patent specifies the wavelength range of the swept-frequency source and the use of a single-mode optical fiber for the imaging process, highlighting the technical aspects and components involved in this innovative method for imaging blood vessels.

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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.