Sherwood Services Ag

Covidien Ag

Covidien LP

Randel Alven Frazier

Michael J Lands

Joe Don Sartor

Kristin D Johnson

Gene H Arts

Wade Lukianow

Stephen Wade Lukianow

Steven Paul Buysse

Dylan R Kingsley

Philip Mark Tetzlaff

Dale Francis Schmaltz

Paul Ray Romero

Kate Ryland Lawes

Kristel L Ambrosius

Dax D Brown

James Gilbert Chandler

Sean T Dycus

Kate R Dawes

Steven W Lukianow

Steven P Buysee

An endoscopic forceps is disclosed including an end effector assembly having two jaw members movable from a first position in spaced relation relative to one another to at least a second position closer to one another for grasping tissue therebetween. Each of the jaw members is connectable to an electrosurgical energy source for conducting energy through tissue held therebetween. The jaw members are biased to the first position. The end effector assembly of the endoscopic forceps further includes a wire snare having a proximal end connectable to an electrosurgical energy source and a distal end translatably extending out of one of the jaw members and operatively associated with the other of the jaw members. In use, withdrawal of the proximal end of the wire snare results in movement of the jaw members from the first position to a second position and clamping of the tissue between the jaws.

Flexible endoscopic catheter with ligasure

A bipolar electrosurgical instrument has a first and a second set of needle like structures. Each set of needle like structures is functional for puncturing the skin of a patient on opposing sides of a wound or cut. Each needle comprises a body and a pointed portion at a distal end. The distal end is structured to form a sealing surface with an opposing needle on a needle of the other set. The sealing surfaces are adapted to connect to an electrical energy source such that the sealing surfaces are capable of conducting bipolar energy therebetween. The first and second set of needle like structures are movable from a first position where the needles are disposed in spaced relation relative to one another to a second position where the first and second sets of needles members are closer to one another. A mechanical force applied to or within a housing is utilized to move the needles sets from the first position to the second position.

Energized needles for wound sealing

A endoscopic bipolar forceps for clamping and sealing tissue includes first and second jaw members pivotally attached in opposing relation relative to one another which are movable from a first open position wherein the jaw members are disposed in spaced relation relative to one another to a second clamping position wherein the jaw members cooperate to grasp tissue therebetween. A drive rod assembly connects each of the jaw members to a source of electrical energy such that the jaw members are capable of conducting bipolar energy through the tissue held therebetween. A handle attached to the drive rod assembly imparts movement of the first and second jaw members from the first and second positions. At least one stop member is attached to the jaw members for controlling the distance between the jaw members. The forceps may also include a yoke member for insulating the jaw members from one another to prevent short circuiting of the forceps. Preferably, the yoke member and jaw member interface is dimensioned to withstand the high shearing forces normally associated with sealing tissue.

Endoscopic bipolar electrosurgical forceps

A removable electrode assembly for use in combination with a forceps having opposing end effectors and a handle for effecting movement of the end effectors relative to one another. The electrode assembly includes a housing which is removably engageable with the forceps and a pair of electrodes which are attachable to a distal end of the housing. The electrodes are removably engageable with the end effectors of the forceps such that the electrodes reside in opposing relation relative to one another. The electrode assembly also includes a cover plate which is removably attachable to the housing and at least one stop member for controlling the distance the electrodes move relative to one another.

Open vessel sealing forceps with disposable electrodes

A bipolar instrument for use by a surgeon to seal tissue with bipolar electrosurgery. The bipolar instrument is a modified hemostat including two elongate members. Each elongate member has a proximal end to be held by a surgeon and a distal end. The elongate members substantially defining a plane and are electrically conductive for transmitting high frequency electrosurgery. A pivot transverse to the plane connects the two elongate members for scissors-like motion between the distal ends. A first tissue contacting pole integral with one elongate member and positioned at its distal end is electrically conductive for transmitting high frequency electrosurgery. Latching elements extend from each elongate member for cooperative interengagement with opposed ramps and abutting stops for sliding conjugation to hold the first and second tissue contacting poles with a predetermined force. An insulated over shoe for placement on the other elongate member at its distal end attaches with a slip fit to prevent longitudinal or transverse movement. That distal end has a reduced cross section for receiving the insulated over shoe in an opening extending thereinto in tunnel fashion. The insulating over shoe has clips for engagement with and about the other elongate member. A second tissue contacting pole affixed to the insulated over shoe and disposed in mirror relationship to the first tissue contacting pole. Two electrical terminals located proximal relative to the pivot to receive bipolar electrosurgery from a source. A first conductor between one terminal and the first tissue contacting pole and a second conductor between the other terminal and the second tissue contacting pole pass bipolar electrosurgery. A switch interrupts continuity in the second conductor for controlled electrosurgery. The switch is atop the pivot in position for surgeon control. A method of assembling the bipolar instrument has the steps of slipping the insulated over shoe onto the other elongate member at its distal end, and attaching the insulated over shoe to the elongate member to prevent longitudinal or transverse movement between the insulated over shoe, the elongate member and the other elongate member.

Biopolar instrument for vessel sealing

Growing community of inventors

Louisville, CO, United States of America

Randel Alven Frazier