140 results about "Cauterization" patented technology

A bipolar surgical instrument that includes opposing grips that can engage the tissue. A current is delivered from an electrosurgical power source to electrodes disposed on the grips to cauterize the tissue. The electrode configurations provide efficient cauterization of the tissue. In some embodiments, the positive and negative electrodes will be offset from each other to prevent shorting and to provide a thin line of coagulation heating to the gripped tissue. In some embodiments the electrodes are removably coupled to the grips through nonconductive sleeves. In some embodiments, the first electrode is disposed in a groove and the second electrode is disposed on a boss.

A cordless cautery and cutting surgical device includes a modular battery and a surgical handle operable to removably hold the battery thereto. The handle has a cordless radio-frequency-signal-generation assembly and a surgical bipolar end effector having jaws and a cutting blade therebetween. The signal-generation assembly selectively supplies radio-frequency signal to the end effector when powered for electrocautery of tissue between the jaws. The handle defines therein an aseptically sealable battery-holding compartment selectively exposed to the environment and removably holding therein the battery. A motor assembly is disposed in the handle and is electrically connected to the battery and/or the signal-generation assembly and is powered and controlled thereby. The motor assembly physically couples to the blade and/or at least one jaw for moving the blade/jaw(s). The second connector part electrically connects the battery to the signal-generation assembly and/or the motor assembly when the battery is removably disposed in the compartment.

A surgical instrument and methods for the treatment of glaucoma are provided. The instrument uses either cauterization, a laser to ablate, sonic or ultrasonic energy to emulsify, or mechanical cutting of a portion of the trabecular meshwork. The instrument may also be provided with irrigation, aspiration, and a footplate. The footplate is used to enter Schlemm's canal, serves as a guide, and also protects Schlemm's canal.

A cordless cautery and cutting surgical device includes a modular battery and a surgical handle. The battery has a cordless radio-frequency-signal-generation assembly generating an output radio-frequency signal and a first selectively removable connector part. The surgical handle has a first handle body portion with a bipolar cautery and cutting end effector. The end effector has jaws with bipolar contacts and a cutting blade disposed between the jaws. The handle has a second body portion connected to the first body portion, defines therein an aseptically sealable battery-holding compartment selectively exposed to the environment and removably holding therein the battery, and a second selectively removable connector part operable to removably hold the first connector part thereto. The second connector part has conductors electrically connecting the RF assembly to the bipolar contacts for supplying the radio-frequency signal to the bipolar contacts when the first and second connector parts are removably secured together.

An apparatus is provided for the laparoscopic deployment and positioning of surgical materials, such as mesh. The mesh is applied by at least one extension arm which radiates from a central shaft. Alternate embodiments employ simultaneously and/or individually extended rigid arms, and simultaneously deployed resilient arms. Various methods are also disclosed for attaching the mesh to the abdominal wall once it is deployed by the extension arms. Illustrative attaching methods include staples, low viscosity adhesives, and electro-cauterization.

A surgical device includes a radio-frequency-signal-generation assembly including a radio-frequency-signal-generation circuit operable to generate a radio-frequency signal at an output and adapted to couple to a switch-mode power supply and a surgical handle including an end effector having at least one jaw with at least one electrical contact, the end effector including at least one signal input that electrically connects to the output to provide the radio-frequency signal at the at least one electrical contact.

Method and device for distending a gynecological cavity. According to one embodiment, a mechanical, non-fluid device is used to distend the gynecological cavity. Such devices include, for example, self-expanding members, such as resilient baskets, coils, whisks, prongs, and loops, or mechanically expanded members, such as inflatable balloons, mechanically-expanded cages and loops, and scissor jacks. The device may serve a purpose in addition to distension, such as illumination, imaging, irrigation, drug delivery, resection and cauterization.

A medical cauterization snare assembly with a tubular member, an electrically conductive cauterization loop ejectable from a distal end of the tubular member, and a capture pouch also ejectable from the distal end of the tubular member. The pouch is attached to an auxiliary loop which has a size larger than that of the cauterization loop. Alternatively, the tubular member is formed at its distal end with a first port or opening and in a distal end portion with a second port or opening spaced from the first port or opening. The two ports or openings both face in a distal direction (i.e., away from the user). The cauterization loop is alternately ejectable from and retractable into the first port or opening, while the capture pouch is separately ejectable from the second port or opening. Alternatively, the capture pouch is attached to the cauterization loop, to only a proximal portion of the loop to divide the loop's area into a proximal section covered by the pouch and an open or uncovered distal section.

An apparatus and method for causing necrosis of tissue and specifically intended for thermal ablation of the uterine cavity to cauterizing the endometrial tissue. The apparatus includes a liquid-tight, liquid filled system having a distal flexible member; a proximal flexible member; and a catheter joining and providing a liquid path between these distal and proximal members. The apparatus further includes a pressurizable pneumatic chamber into which the proximal flexible member is inserted and a means to controllably heat the contents of the pneumatic chamber. The system operates to: first withdraw substantially all of the liquid into the proximal flexible member contained within the pressurizable pneumatic chamber; second to heat this liquid to a temperature such that it can cause tissue necrosis; and third to force the heated liquid from the proximal flexible member into the distal flexible member where it is maintained for a predetermined time and at a predetermined pressure. Where this distal member has been inserted into a uterine cavity or is otherwise is in contact with living tissue, the presence of the heated liquid results in tissue necrosis and cauterization.