Enhanced vision in electrosurgery
AssigneeMedtronic Advanced Energy LLC
InventorsMohammad Miri, Prakash Manley, Christopher T. Brown, Anjali Dhiman
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Abstract
An electrosurgical device vision system, comprising at least one of one or more fiber-optic cables and/or digital image sensor positioned to capture a corresponding one or more views of the surgical site in proximity to a distal tip portion of an electrosurgical device, and a processor configured to utilize multiple images captured by the vision system to construct a composite image with at least one of an improved resolution, clarity, dynamic range, and/or size.
Claims9
An electrosurgical device, comprising:
- an optical instrument configured to be coupled operably to the electrosurgical device and positioned to capture source images of the surgical site in proximity to a distal tip portion of the electrosurgical device, the optical instrument comprising:
- a plurality of fiber-optic cables arranged axially along a length of the electrosurgical device, each configured to obtain separate source images, and wherein an end of at least one of the fiber-optic cables is positioned at an angle of between about 5° and about 45° away from a longitudinal axis of the electrosurgical device;
- a digital image sensor coupled to the plurality of fiber-optic cables;
- an electromagnetic shield configured to protect the optical instrument from distortion created by the electrosurgical device during operation;
- and
- a storage device comprising instructions that, when executed by a processor, apply one or more homography matrices to combine the source images into a composite image depicting a wider field of view of the surgical site than possible from one of the plurality of fiber-optic cables.
A method of compositing one or more images of a surgical site, comprising:
- capturing source images of the surgical site in proximity to a distal tip portion of an electrosurgical device via two or more optical instruments operably coupled to the electrosurgical device, each of the optical instruments including a fiber-optic cable arranged axially along a length of the electrosurgical device for obtaining a separate source image of the surgical site, a digital image sensor to convert an obtained image to a digital signal, and an electromagnetic shield configured to protect the optical instrument from distortion created by the electrosurgical device during operation, wherein an end of at least one of the fiber-optic cables is positioned at an angle of between about 5° and about 45° away from a longitudinal axis of the electrosurgical device;
- modifying the source images according to one or more homography matrix, wherein the homography matrix is configured to provide at least one of a rotational transformation, dilation, or translation of at least one of the two or more source images relative to a base image;
- and
- combining the modified two or more source images to create a composite image depicting a wider field of view of the surgical site than possible from one of the plurality of fiber-optic cables.
Dependencies are inferred from the claim text.