Devices and methods for sealing and cutting tissue are provided. In one exemplary embodiment, a surgical device includes a pair of opposed, pivoting jaws, a cutting blade assembly slidably coupled to the jaws, and a biasing member disposed in a portion of the cutting blade assembly and configured to be received by a track formed between proximal ends of the jaws. The cutting blade assembly can be operative to open and close the jaws, and the biasing member can be configured to be disposed at a location in the track that applies a spring bias to a proximal end of at least one of the jaws. The spring bias in turn increases a compressive force applied by distal ends of the jaws, which in turn can maintain or increase a force applied to tissue disposed between the jaws. Other devices and methods for sealing and cutting tissue are also provided.
