Thermofusion Jaw Conductor Structure for Sterile Mechanical Stiffness

The jaw is constructed as a composite structure combining plastic material with integrated metal conductors. The plastic provides insulation and structural form, while the metal conductors provide mechanical stiffness and electrical conductivity. This composite approach allows the instrument to be compact and sterilizable while maintaining adequate mechanical resilience through the metal reinforcement.

The conductors transition from a planar arrangement near the hinge to a three-dimensional configuration extending toward the grip end. The first conductor remains substantially planar for precise joint connection, while the second conductor is cranked and extends in multiple directions, providing both electrical connectivity and mechanical reinforcement in three-dimensional space, thereby improving bending resistance.

The second conductor is segmented into multiple straight sections connected by crank sections. This segmentation allows each section to be manufactured with standard precision, while the overall cranked configuration provides the required bending resistance. The分段 design makes the complex three-dimensional shape more manufacturable compared to a single curved piece.

The rigid insulating material is applied locally only at the joint area where electrical insulation is critical for connecting the conductors. The rest of the jaw maintains its plastic construction with appropriate flexibility. This localized application provides necessary electrical insulation at the connection point while preserving the overall mechanical flexibility and sterility capabilities of the jaw.