Optical tissue feedback device for an electrosurgical device

An electrosurgical knife for a cutting procedure, the electrosurgical knife comprising:

• a blade;
• a tissue sensing device comprising:
• a first body having a first body proximal end portion configured to receive a portion of a housing of the electrosurgical knife, a first body distal end portion configured for movably supporting the blade, and a grip portion between the first body distal end portion and the first body proximal end portion;
• a second body having a second body proximal end portion configured to receive a portion of the housing of the electrosurgical knife, a second body distal end portion configured for movably supporting a blade of the electrosurgical knife, wherein the second body proximal end portion is adjacent to the first body distal end portion;
• and
• an optical fiber having a distal end and a proximal end configured to be connected to an optical console, wherein:
• the distal end of the optical fiber is further arranged at the first body distal end portion such that when the blade is supported by the first body distal end portion, the distal end of the optical fiber is configured to be positioned separately to the blade, and wherein the second body distal end portion is configured to be moved at least partially independently from the first body distal end potion relative to the blade.

A system, comprising:

• a tissue sensing device configured for attachment to an electrosurgical knife for a cutting procedure, the tissue sensing device comprising:
• a first body having a first body proximal end portion configured to receive a portion of a housing of the electrosurgical knife, a first body distal end portion configured for movably supporting a blade of the electrosurgical knife, and a grip portion between the first body distal end portion and the first body proximal end portion;
• a second body having a second body proximal end portion configured to receive a portion of the housing of the electrosurgical knife, a second body distal end portion configured for movably supporting a blade of the electrosurgical knife, wherein the second body proximal end portion is adjacent to the first body distal end portion;
• and
• an optical fiber having a distal end a proximal end configured to be connected to an optical console, wherein:
• the distal end of the optical fiber is further arranged at the first body distal end portion such that when the blade is supported by the first body distal end portion, the distal end of the optical fiber is configured to be positioned separately to the blade, and wherein the second body distal end portion is configured to be moved at least partially independently from the first body distal end portion relative to the blade;
• wherein the optical console is configured to receive light for spectral analysis;
• a processor;
• and
• a non-transitory computer-readable medium that stores instructions, which when executed by the processor, cause the processor to:
• spectrally analyze the received light;
• identify a spectral signature;
• and determine from the spectral signature a tissue type in front of or in direct vicinity of the blade.