Insert for indicating position of tumor or other diseased structures

摘要

The system of indicating the position of diseased structure in the human body uses a hollow needle in the end of which an indicator element (1) is mounted. A wire (4) is attached to the indicating element and runs up through the needle. The indicating element is in the form of a short tube section which is mounted inside the end of the needle. The needle and element are bevelled forming a sharp point to facilitate the needle being pushed into the body. When the section is near the diseased part, it is pushed out of the needle by a third tube section (3) which also fits inside the needle. It is hooked behind the diseased section while the needle is withdrawn. A knot is tied in the wire just outside the body.