An electro-mechanical surgical device, system and/or method may include a housing, at least two opposing jaw, and at least one electrical contact associated with at least one of the jaws. The electrical contact may include at least one of a bipolar electrical contact and an ultrasonic electrical contact. The electrical contact may be a row of electrodes located on one or all of the jaws. A sensor may also be associated with any tissue located between the jaws to sense and report the temperature of that tissue. A piercable ampulla containing fluid may also be placed on at least one of the jaws so that the fluid is releasable when the jaws are in closed position and the electrode(s) pass through the tissue into the piercable ampulla.

Bipolar or ultrasonic surgical device

A bipolar surgical device comprises a pair of actuable jaws. A first electrode member which optionally includes a line of electrically coupled tissue-penetrating elements is formed on one of the jaws, and a second electrode member which optionally includes a line of electrically coupled tissue-penetrating elements is formed on the same or the other jaw. The electrode members are laterally spaced-apart and arranged in a parallel, usually linear manner so that the lateral distance therebetween remains generally constant. In operation, tissue may be grasped between the jaws so that the electrode members contact and/or the tissue-penetrating elements enter into the tissue. By energizing the electrode members at opposite polarities using a high frequency energy source, tissue between the jaws will be heated, coagulated, and/or necrosed, while heating of tissue outside of the lines will be minimized.

Bipolar surgical instruments having focused electrical fields

Methods and systems are provided for necrosing, and resecting tissue. A pair of electrodes (12, 14) are placed on opposed tissue surfaces, and radio frequency power (16) is applied through the electrodes (12, 14) to necrose a tissue mass therebetween. After necrosis the tissue may be resected along a plane within the necrosed region with minimum or no bleeding. The tissue mass may then be removed.

Methods and systems for organ resection

An electrosurgical hemostatic instrument is provided in which the coagulation status of tissue engaged by two elements delivering an electrosurgical energy to tissue may be observed, and in which damage from thermal spread may be minimized. A preferred embodiment of the invention provides a bipolar endoscopic clamping, coagulation and cutting device. In this device, the outer conductive surface of the tissue engaging elements includes openings therethrough. The openings are adapted to allow an observer to see the tissue as it is being treated, coagulation may be observed by watching the region through the openings. In addition, the inclusion of openings in the end effector enhances coagulation from speed by reducing the thermal mass of the end effector without substantially reducing the structural strength of the end effector jaws. Finally, the openings may be used to observe the motion of the knife as it moves through the end effector.

Bipolar electrosurgical clamping device

Embodiments of the technology provide an articulable electrosurgical instrument and methods of performing electrosurgery with an articulating capability. The electrosurgical instrument includes an elongated shaft having an end effector associated with a distal end thereof that is able to deliver energy to a target tissue site. An articulable joint is positioned between that shaft and the end effector. Articulation of the articulable joint is controlled by a stabilizable articulation actuator, which may include a rotatably stabilizable disk residing within a well. The end effector may take the form of forceps including an upper and a lower jaw; the jaws are configured to grasp target tissue and to deliver energy, such as radiofrequency energy. In some of these instruments, the end effector is adapted to seal tissue by the application of radiofrequency energy, and then to cut through the sealed tissue portion.

Articulable electrosurgical instrument with a stabilizable articulation actuator

Biopsy forceps (10), especially for endoscopic procedures, which enable tissue samples to be cut and retrieved, and which can coagulate the incision if necessary, while still at the situs of the excision. An electrically conductive control wire (14) is conductively connected to the jaws (24, 25) and spear (35) of the forceps (10). Should coagulation be required, a high frequency burst of electrical energy is applied to the control wire (14) and, thus, to the jaws (24, 25) and spear (35). The patient (45) is also connected into the circuit, usually through a metal plate (44) pressed against the patient's skin. The resulting heat coagulates the tissue which is in contact with the jaws (24, 25) and the spear (35).

Biopsy forceps for obtaining tissue specimen and optionally for coagulation

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Biopsy forceps for obtaining tissue specimen and optionally for coagulation