Enable Medical Corporation

Covidien Ag

Origin Medsystems, Inc.

Theodore A Richardson

Michael D Hooven

Duane E Kerr

John P Lunsford

Philip Mark Tetzlaff

David Abraham Schechter

Charles Gresl, Jr

Tenny Chang

Matthew J Winkler

Gregory P Drach

Carolyn H Mihaichuk

Jon Sherman

Jonathon Sherman

A bipolar electrosurgical instrument for clamping, grasping, manipulating, and sealing tissue includes first and second shafts each having a jaw member extending from a distal end thereof and a handle disposed at a proximal end thereof. The handle being operable to effect movement of the jaw members relative to one another from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members cooperate to grasp tissue therebetween. The bipolar instrument is connectable to a source of electrical energy having a first electrical potential connected to one of the jaw members and a second electrical potential connected to the other of the jaw members such that the jaw members are capable of selectively conducting energy though tissue held therebetween to effect a seal. Both the first and second electrical potentials are transmitted to the jaw members through the first shaft.

Vessel sealing instrument

Surgical scissors include a pair of scissor blades mounted at a distal end of an elongated flexible body and a housing attached to the proximal end of the elongated body. An actuator is coupled with mechanical advantage to the scissor blades for manually controlling shearing movement of the blades in response to finger movement on the actuator back and forth along the housing. Electrical conductors are provided through body and housing from a connector to the scissor blades. The housing is configured to be assembled in mating shells with components assembled in and confined by attached shells that facilitate rapid and accurate fabrication.

Elongated surgical scissors

Bipolar electrosurgical scissors are disclosed having a pair of blades joined for relative movement in a scissor-like action between open and closed positions. The blades comprise a tissue contacting surface and first and second spaced apart electrodes extending along the surface. Current flow between the first and second electrodes of each blade and between each blade to promote hemostasis in tissue contacting the surface.

Bipolar electrosurgical scissors

An electrosurgical instrument system including an RF energy source that has two bipolar terminals of opposite polarity and two monopolar terminals, one being active and the other being passive. Switches are provided for selectively energizing the bipolar terminals and the monopolar terminals. The system includes an electrosurgical instrument that has two tissue-contacting members and at least two electrodes. One electrode may be associated with each of the tissue-contacting members, or both electrodes may be associated with one of the tissue-contacting members. Two conductors are provided for connecting the two electrodes to the positive and negative bipolar terminals respectively. A third conductor is provided for connecting either of the electrodes or one of the tissue-contacting members to the active monopolar terminal. The system also includes a patient return electrode pad which is in electrical communication with the pass of monopolar terminal. Consequently, the instrument may be selectively used in the either the monopolar mode or the bipolar mode by engagement of the appropriate switch. In addition, an instrument for use in such a system as disclosed, which comprises any of a variety of bipolar electrosurgical instruments, including scissors, graspers, and forceps. A separate conductor assembly is also disclosed. In a further embodiment, switching circuitry is disclosed that senses bipolar or monopolar current and automatically connects the electrosurgical instrument to contact with the leads for the sensed current.

Combination monopolar-bipolar electrosurgical instrument system,

An electrosurgical instrument, such as a scissors, in which the handle and blade members are of a conventional construction. Each blade member supports a detachable cartridge member made of an insulating material and supporting at least one electrode. The cartridge members do not interfere with the cutting engagement of the blade members. Each cartridge member can also permit relative movement between its electrode and associated cutting edge from a first position in which the electrodes are between the cutting edges (when the blades are open) to a second position in which each electrode is behind its respective cutting edge (as the blades are closed).

Growing community of inventors

Cincinnati, OH, United States of America

Theodore A Richardson