High shape-retention retractor

Abstract

There is provided a retractor for holding an incision site of the human body to be incised in an open state, the retractor being a high shape-retention retractor whose shape during use is stabilized. The high shape-retention retractor: contains, as a main resin component, a synthetic resin having chemical resistance and being an elastic material; and is configured to be elastically curved from a plate state such that a first end and a second end overlap in a thickness direction to form a ring, in which: a through-hole is formed near the first end to allow the second end to pass through; and a size of a diameter of the ring can be varied by changing a length of a distance over which the second end is passed through the through-hole.

Dependencies are inferred from the claim text.