Patent ID: 7214059

Claim:
A bone piece collecting device for filtering and collecting a bone piece from a liquid, comprising: a suction duct for collecting the liquid, comprising blood, saliva, cooling liquid including the bone piece from an oral cavity; a main unit body, including a suctioning side part and a base end side part, coaxialty connected to the suction duct via an intermediate portion, wherein the base end side part, through which the liquid excluding the bone piece passes, is detachable from the suction duct, and the suctioning side part, through which the liquid comprising at least the bone piece passes, is detachable from the base end side part; a filter member, including a filter part a first joint part and a second joint part and filtering the bone piece and jointing the base end side part and the suctioning side part, detachably disposed at the intermediate portion in the main unit body, wherein the filter part is container-shaped and filters the bone piece from the liquid, and the first joint part is fitted to an inner side of an opening of the base end side part, and the second joint part is fitted to an inner side of an opening of the suctioning side part and located around the first joint part and protrudes from the opening of the base end side part; and a filter holder including an inner wall, with impermeability, fitted to an outer wall of a mesh of the filter member removed from the main unit body after collecting the bone piece, wherein the area of a bottom part of the filter holder exceeds that of the filter member such that the filter member can be stably positioned, whereby a bone filling material comprising at least the bone piece can be collected from the filter member after the bone piece is mixing agitated with the other substances in the filter member.