| 摘要 |
A method and apparatus for destroying the metallic portion of an elongate medical instrument, such as a hypodermic needle, by locating the instrument in the apparatus in a position where the tip of the instrument electrically engages a contact surface of a first and a second electrode. The electrodes each have an electrical contact surface disposed in opposition and separated by a gap from each other, and each electrode is in electrical contact with a power source. The electric potential between the electrodes is sufficient to induce electrical resistance burning of the tip of the instrument when an electrical current is passed through the tip between the electrodes. During operation of the apparatus, the instrument is progressively advanced longitudinally relative to the electrodes to progressively consumes the shaft of the medical instrument as the burning tip continuously advances from the start position to a finish position.
|
