US Patent 11786295 Electrosurgical tissue and vessel sealing device

An electrosurgical device can be delivered to a tissue site to provide supplemental sealing of vessels and/or vascular tissue that include suturing, stapling, or the like. The electrosurgical device is generally in the form of forceps, and includes an end effector assembly including opposing movable jaws. Each jaw includes a deformable pad or cushion including an electrode array positioned thereon. Each deformable cushion is configured to deliver a fluid, such as saline, during activation of the electrode array, thereby creating a virtual electrode which couples radiofrequency (RF) energy emitted from the electrode array into tissue in which the RF energy is converted into thermal energy. The deformable cushion and electrode array provide a controlled degree of compression upon the target tissue or vessel to maintain integrity of a suture, staple, or clip, as well as controlled energy emission for sealing, cauterizing, coagulating, and/or desiccating the target tissue or vessel.