Electrosurgical Forceps Seal Plate Overmolding Delamination

The patent applies local quality by creating a tab member with a cavity at a specific location on the seal plate, rather than uniformly thickening the entire seal plate. This localized structural modification provides thermal stability where needed while maintaining the overall simplicity of the overmolding process. The cavity-filled tab member creates a localized reinforcement that prevents deformation at high temperatures without complicating the general manufacturing approach.

The patent employs composite materials by combining the seal plate metal substrate with an insulative material that fills the cavity in the tab member. This composite structure creates a thermally stable attachment point where the insulative material resists thermal deformation, preventing delamination. The combination of metal seal plate and insulative cavity filler creates a composite tab member that maintains structural integrity under electrosurgical heating conditions.

The patent merges the wire attachment function with the seal plate structure by integrating a wire retention feature directly into the seal plate design. Instead of using separate crimping terminals or connectors, the wire is attached directly to the seal plate through a simplified process that combines attachment and retention in a single integrated feature, reducing manufacturing steps and costs while maintaining reliable electrical connection.

The patent extracts the complex crimping terminal component from the wire connection system and replaces it with a simplified wire attachment method directly on the seal plate. By removing the intermediate crimping terminal element, the design eliminates the need for complex crimping tools and processes, reducing manufacturing complexity while maintaining adequate wire connection reliability for electrosurgical applications.