Avinger has filed a patent for a catheter system that incorporates an anamorphic lens assembly and an optical fiber to provide a common path for optical radiation in optical coherence tomography (OCT) imaging. The lens assembly is coupled to the optical fiber and includes a housing with a side-facing hole, and a lens body attached to the distal end of the optical fiber. The system allows for imaging of both the target and the reference interface. 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 September 2023 was 54%. Grant share is based on the ratio of number of grants to total number of patents.
Catheter device for optical coherence tomography imaging
A recently filed patent (Publication Number: US20230225616A1) describes a catheter device for optical coherence tomography (OCT) imaging. The device includes a lens assembly coupled to an optical fiber, with the lens assembly consisting of a housing and a lens body. The lens body is positioned within a side-facing hole in the housing and is optically coupled to the distal end of the optical fiber by an interface medium. The optical fiber and the lens body work together to provide a common path for optical radiation reflected from a target and a reference interface formed by the interface medium.
The lens body in the device has a concave proximal surface that is opposite and at an angle relative to the distal end of the optical fiber. The interface medium is located within a channel of the housing. The lens body has a refractive index that is different from the refractive index of the optical fiber, with the difference being 0.02 or less. The lens assembly may also include a hypotube coupled to the lens body, with the optical fiber positioned within a channel of the hypotube.
The device further includes a reflective coating on the lens body, which has a thickness of at least 1/6 of the excitation wavelength of the source of optical radiation. The reference interface provides a reference reflection of between -28 and -42 dB. The device is designed for use in optical coherence tomography imaging, where the optical fiber can rotate relative to the elongate catheter body. The device also includes a source of optical radiation, receiving electronics to receive the reflected optical radiation, and a processor to generate an image of the target based on the received optical radiation.
Overall, this patent describes a catheter device for OCT imaging that incorporates a lens assembly and optical fiber to provide a common path for optical radiation. The device includes various features such as a concave lens body, an interface medium, and a reflective coating to enhance the imaging capabilities. The device is designed for use in medical imaging applications, particularly in the field of optical coherence tomography.
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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
