Jeffrey S Chen

US Patent:

20200297970, Sep 24, 2020

Filed:

Mar 12, 2020

Appl. No.:

16/817313

Inventors:

- Melville NY, US
Albert Harold Dunfee - Byfield MA, US
Kenneth Cooper Lippencott - Mount Tabor NY, US
Jeffrey Yutien Chen - Winchester MA, US

International Classification:

A61M 25/01
A61B 1/07
A61B 1/00
A61B 5/00

Abstract:

A catheter, comprising: a drive cable having cylindrical opening extending from a proximal end to a distal end along a longitudinal axis thereof; an imaging probe having an optical fiber arranged inside the drive cable and a distal optics assembly fixedly attached to the drive cable at the distal end thereof; a first radiopaque marker arranged at a distal end of the drive cable at a position distal and parallel to the distal optics assembly; and a second radiopaque marker arranged at a predetermined distance from the distal end of the drive cable at a position proximal to the distal optics assembly. The second radiopaque marker is arranged concentric or coaxially to the longitudinal axis in a space between the longitudinal axis and an outer surface of the drive cable.

US Patent:

20200178904, Jun 11, 2020

Filed:

Dec 3, 2019

Appl. No.:

16/701679

Inventors:

- Melville NY, US
Jeffrey Yutien Chen - Winchester MA, US

International Classification:

A61B 5/00
A61B 1/00
A61B 1/005

Abstract:

Apparatus, methods and systems for displaying continuous images of a lumen while accurately depicting the curvature of the lumen, as well as evaluating and diagnosing biological objects, such as, but not limited to, gastro-intestinal, pulmonary and/or intravascular applications, which may be obtained via one or more instruments, such as, but not limited to, probes, catheters, endoscopes, capsules, and needles (e.g., a biopsy needle).

US Patent:

20190099079, Apr 4, 2019

Filed:

Oct 3, 2017

Appl. No.:

15/724003

Inventors:

- Melville NY, US
Jeffrey Chen - Winchester MA, US

International Classification:

A61B 5/00

Abstract:

A multimodality system includes first and second modalities, a catheter, and a processor. The catheter collects fluorescent light from a plurality of locations of a sample which has been irradiated with excitation light of the second modality; a detector detects intensity of the fluorescent light received from the plurality of locations as a function of an angle α formed between the normal to the sample surface and the optical axis of the excitation light. A processor calculates the angle α at each of the plurality of locations based on radiation of the first modality incident on the sample, and corrects the intensity of the detected fluorescent light using a calibration factor g(α). The calibration factor g(α) is a function of the angle α calculated at two or more of the plurality of locations. The angle α is composed of a transversal angle αand an axial angle α.