Electrosurgical scissors

摘要

Embodiments are directed to various monopolar and bipolar electrosurgical scissor instruments. A monopolar electrosurgical scissor instrument includes one scissor blade that has an electrically conductive tapered edge, where the tapered edge is insufficiently sharp to shear or otherwise mechanically cut tissue. The scissors also include another electrically insulated scissor blade movably mounted to the first scissor blade. The second scissor blade includes a flat contact surface that is aligned with the tapered edge of the first scissor blade. The scissors further include a scissor body that includes a conductor that transfers electrical energy from an energy source to the tapered edge of the first electrically conductive scissor blade to electrically cut interlaying tissue located between the first electrically conductive scissor blade and the second electrically insulated scissor blade.

主权项

1. An monopolar electrosurgical scissor instrument, comprising:
a first electrically conductive scissor blade comprising (i) a body, (ii) a dropdown corner that is integrally formed with the body and that extends from the body in a first direction, and (iii) a tapered edge that is integrally formed with the body and the dropdown corner, the tapered edge extending along the body and onto the dropdown corner in a continuous manner, the tapered edge being adapted to concentrate electrical energy transmitted from the electrosurgical scissor instrument to patient tissue during an electrosurgical procedure, the tapered edge being insufficiently sharp to shear or mechanically cut tissue; a second scissor blade movably mounted to the first scissor blade, the second scissor blade comprising (i) a contact surface that is aligned with the tapered edge of the first scissor blade, and (ii) a cavity adapted to receive at least partially therein the dropdown corner; and a scissor body comprising a conductor that transfers electrical energy from an energy source to the tapered edge of the first scissor blade to electrically cut interlaying tissue located between the first scissor blade and the second scissor blade.