| 摘要 |
A bipolar includes two parts and each part has a heating distal end. A wire is connected to each part and electrically connected to the heating distal end corresponding thereto. A connection member is connected to the two parts and includes two terminals which are respectively connected to the two wires. An adjusting device which can be a sleeve movably mounted to the two parts or a pin which pivotably connects the two heating distal ends. By the adjusting device, the available length of the bipolar can be optionally used.
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