摘要:
A deployment and retraction mechanism for a surgical instrument includes a gear box defining a longitudinal slot, a slider, a ring gear, and a planet gear. The slider is configured to engage a deployable component of the surgical instrument and is translatable along the longitudinal slot between a proximal end, corresponding to a storage condition of the deployable component, and a distal end, corresponding to a use condition of the deployable component. The planet gear is operably engaged with the ring gear and configured to orbit within the ring gear. The planet gear includes an off-center pin rotatably supporting the slider thereon. The planet gear and ring gear are configured such that a one-half orbit of the planet gear within the ring gear translates the slider from one end of the longitudinal slot to the other end of the longitudinal slot.
摘要:
A surgical instrument includes an end effector and a handle assembly. The end effector includes a movable jaw and a cutting element slidably movable within the end effector. The handle assembly includes an energy button configured to deliver energy to at least one electrode located in the end effector, a trigger plate operably coupled to a jaw closure mechanism, the trigger plate configured to close the movable jaw, a firing plate operably coupled to a cutting element drive mechanism. The firing plate is configured to drive the cutting element independently of the jaw closure mechanism. The cutting element drive mechanism is configured to close the movable jaw when the cutting element is driven. The handle assembly further includes a trigger operatively coupled to the trigger plate and the firing plate. The jaw closure mechanism and the cutting element drive mechanism are configured to simultaneously close the movable jaw.
摘要:
An improved electrosurgical scalpel, with fume evacuation, for generating electrical signals intended for applications to the body of a patient via an electrosurgical electrode is provided that includes a channel to evacuate fumes generated. An electrosurgical scalpel includes a handle with a receptacle portion of a conductive hollow member for mounting and retaining an electrode blade and evacuating fumes, an optional light source with a power source that may be encapsulated within the handle and a vacuum port for applying a vacuum source to draw fumes away from the electrode tip through the chanel. Operation of a slide on the handle serves to retract or extend the electrode blade, and direct fume evacuation.
摘要:
Disclosed is a method of controlling a modular battery powered handheld surgical instrument. The surgical instrument including a battery, a user input sensor, a controller, a radio frequency (RF) drive circuit, an ultrasonic transducer, ultrasonic transducer drive circuit, and an end effector. The end effector including an electrode electrically coupled to RF drive circuit, an ultrasonic blade acoustically coupled to the ultrasonic transducer, and a sensor to measure tissue parameters. The method includes applying an RF current drive signal to the electrode by the RF drive circuit; applying an ultrasonic drive signal to the ultrasonic transducer by the ultrasonic transducer drive circuit to acoustically excite the ultrasonic blade; controlling intensity, wave shape, and/or frequency of the RF current drive signal and the ultrasonic drive signal on a sensed measure of a tissue or user parameter.
摘要:
A system comprising a surgical instrument is disclosed. The surgical instrument includes a handle, a shaft, a plurality of magnets, a plurality of sensors configured to determine a distance away from one or more of the plurality of magnets, and a processor communicatively coupled to the plurality of sensors. The processor is configured to determine a three dimensional change in position of the shaft by computing a three dimensional change in position of the one or more magnets, using the change in the distances determined by the one or more plurality of sensors.
摘要:
An electrosurgical device: forceps having: a first working arm, a second working arm, wherein the electrosurgical device has a first electrosurgical configuration where the first working arm and the second working arm are in an opposed position so that the forceps deliver a first therapy current that flows between the first working arm and the second working arm; and wherein the electrosurgical device has a second electrosurgical configuration when the first working arm, the second working arm, or both are repositionable relative to each other so that the first working arm is extended with respect to the second working arm or vice versa and a second therapy current is delivered from the first working arm to a remote electrode.
摘要:
A system for selectively actuating a heating current conductible from a bipolar generator to a surgical tool may comprise an actuator assembly having an output receptacle, an input plug, and an actuating component. The output receptacle may be configured to receive a complementary tool plug of the surgical tool. The input plug may be configured for mating with a generator receptacle receivable of the heating current from the bipolar generator. The generator receptacle may be complementary to the tool plug. The actuating component may have at least one of a switch and a lever arm and may be configured to communicate with the bipolar generator for selectively actuating the heating current to flow from the input plug to the output receptacle upon engagement of the switch or the lever arm.
摘要:
Described herein generally are surgical pencils which define a channel to enable suctioning of materials and methods of operating the surgical pencils. In one example embodiment, the surgical pencils perform cutting and coagulation. In one example embodiment, the surgical pencils include a lighting device.
摘要:
Electrosurgical instruments are configured to provide increased ablative capability without requiring increased current density at the electrode. The electrosurgical instrument includes an elongate probe having a handle portion and a distal end. An electrode is disposed at the distal end and is configured to ablate tissue. The instrument includes an aspiration lumen, e.g., that may open through the electrode, at the distal end to aspirate fluid, tissue debris, and gaseous bubbles through the aspiration lumen. The electrosurgical instrument includes a user operable control (e.g., button) on the handle portion for selectively placing the instrument in boosted ablation mode, which can be achieved by restricting aspiration of fluid through the aspiration lumen, reducing active cooling of the electrode, and causing increased ablative sparking density at the electrode (e.g., by at least 10%, 20%, 35%, or 50%).
摘要:
A surgical forceps comprising: a first working arm and a second working arm configured to move towards and away from each other; and an electromagnetic latching system; wherein the electromagnetic latching system is configured to create a force that is in a direction aligned with closing of the forceps or opposite to the closing of the forceps when an electromagnetic activation button is depressed.