| 摘要 |
The present invention discloses a biopsy apparatus used for tissue incision by being inserted into a human body. The present invention comprises an outer member, an inner member, and a rotation driving device. The outer member comprises: a cylindrical outer body portion; an outer cut portion wherein a part of the outer body portion is cut in order for tissue which contacts the outer surface of the body portion to enable entry into the outer body portion; an outer blade portion which is formed sharply at an acute angle at the rim of one side of the outer cut portion; and a cutting tip which is mounted at the end of the outer body portion in order for the outer body portion to enter the human body by cutting tissue. The inner member comprises: a cylindrical inner body portion which is inserted into the outer member; an inner cut portion which is formed by being cut so that a part of the inner body portion can be extended in a slope direction based on the longitudinal direction of the inner body portion; and an inner blade portion which is formed sharply at an acute angle at the rim of one side of the inner cut portion. The rotation driving device rotates the inner member within the outer member so that the inner blade portion moves in a cross direction against the outer blade portion while placing tissue, which is entered through the outer cut portion, between the inner blade portion and the outer blade portion. |
