Optical energy-based methods and apparatus for tissue sealing

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The Covidien Lp patent solves the following problem:

The present disclosure is directed to tissue sealing and, in particular, systems and methods for sealing tissue using optical energy.

Our analysis of this patent is as follows:

Covidien Lp’s patent US 9456870 B2 deals with Optical energy-based methods and apparatus for tissue sealing.
Optical energy-based methods and tools for sealing vascular tissues involves deforming vascular tissues to bring the different layers of the vascular tissue into contact with each other and illuminating the vascular tissue with a light beam that has at least a portion of the spectrum overlapping the absorption spectrum of the vascular tissue. The apparatus may include two deforming members configured to deform the vascular tissue placed between the deforming members. The apparatus may also include an optical system with a light source configured to generate light, a light distribution element configured to distribute light across the vascular tissue, and a light guide configured to guide the light from the light source to light-element distribution. apparatus may further include a cutting member configured to cut the vascular tissue and to shine the light vascular tissue to seal at least a cut face in the vascular tissue.

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