Color dependent polarization enhanced laparoscopy/endoscopy for enhanced visualization of lesions
US12357182B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 25, 2023 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | Jul 11, 2043 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/7264
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Methods for improved imaging of internal tissue structures, such as lesions in the peritoneum, are disclosed employing color-weighted Polarization Enhanced Light (mPEL) imaging. A target tissue can be Illuminated with light of defined polarization at a plurality of wavelengths or wavelength bands. Scattered light from the tissue is collected and its polarization states analyzed and detected either via a polarization sensitive camera or a combination or polarizing filters and a standard camera. Light detected at distinct polarization states and colors is weighted by a factor and combined to yield an image that results in optimized visualization of lesions and/or discrimination of malignant from benign lesions. The factors may be identified based on a combination of Monte Carlo simulations and regression analysis to yield enhanced sensitivity to the tissue scattering power. Alternatively, the factors may be identified through machine learning based optimization algorithms to optimize tissue classification.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.