Surgical instrument and surgical system

A surgical instrument to remove tissue, in particular unhealthy tissue or tissue containing cancer cells, from a body and to analyse the removed tissue, comprising:

• an elongate housing;
• a tissue removal device arranged at a distal end of the surgical instrument, wherein the tissue removal device is configured to remove tissue directly distally from the tissue removal device;
• wherein the tissue removal device comprises a cutting device, wherein the cutting device comprises a rotatable cutting blade configured to cut slices of tissue, wherein the rotatable cutting blade is mounted on a rotatable element adapted to be driven in a rotating movement by an actuator to rotate around an axis that is perpendicular to a longitudinal axis of a discharge channel;
• the discharge channel formed by a tube connected to the tissue removal device for discharge of removed tissue, wherein the discharge channel at least partially runs through the elongate housing from the distal end of the surgical instrument connected to the tissue removal device;
• and
• a tissue analysis device comprising an analysis sensor to analyse non-removed tissue in front of the tissue removal device, wherein the tissue analysis device is configured to analyse the non-removed tissue in front of the tissue removal device based on diffuse reflectance spectroscopy in a visible wavelength region or a near infrared wavelength region, wherein the tissue analysis device is configured to provide a sensor signal representative for an analysed characteristic of the non-removed tissue, in particular for the presence of the unhealthy tissue or the cancer cells within the tissue,
• wherein the tissue analysis device further comprises at least two optic fibers along a distal part of the surgical instrument to the distal end of the surgical instrument,
• wherein the tissue analysis device is configured to emit light through a first optic fiber of the at least two optic fibers while receiving light through another optic fiber of the at least two optic fibers, and
• wherein the distal ends of the at least two optic fibers are at opposite sides of the distal end of the surgical instrument, and
• wherein the analysis sensor is arranged in a part of the elongate housing that has a larger cross section than the distal part of the surgical instrument.