MEDICAL DEVICE
A medical device includes: an insertion portion that includes a distal end and a proximal end and is capable of being inserted into a body; a light-emitting portion that is disposed at the distal end of the insertion portion and is configured to emit light containing a wavelength capable of passing through a biological tissue; and a marking portion that is disposed at the distal end of the insertion portion and is configured to form a marking on the biological tissue. The light-emitting portion and the marking portion are disposed at the insertion portion such that a positional relationship between the light-emitting portion and the marking portion can be fixed.
1 . A medical device comprising:
an insertion portion that includes a distal end, a proximal end, and a longitudinal axis which connects the distal end and the proximal end together, and that is capable of being inserted into a body;
a marking portion that is disposed at the distal end of the insertion portion and that is configured to form a marking on a biological tissue;
an inner region that is disposed at the distal end of the insertion portion and that is surrounded by the marking portion in a surface perpendicular to the longitudinal axis; and
a light-emitting portion that is disposed at the inner region and that is configured to emit light containing a wavelength capable of passing through the biological tissue.
2 . The medical device according to claim 1 , wherein the marking portion and the light-emitting portion are capable of being coaxially positioned.
3 . The medical device according to claim 1 , wherein the marking portion includes an electrode capable of being energized with high-frequency current to cauterize the biological tissue.