An endosurgical device is provided. The endosurgical device comprises a flexible tube having at least two lengthwise extending channels, an end effector comprising two opposite jaws having opposite cutting edges, an effector sleeve that surrounds the tube at least at the distal tube end, and means for reciprocating the end effector axially in relation to the effector sleeve to close the jaws when the effector sleeve is moved forward and backwards to close and open the jaws, respectively. The exterior face of the opposite jaws is electrically insulated, and an electrical cord for providing current to the end effector extends inside one of the lengthwise extending channels of the tube. The endosurgical device may allow the surgeon to take several tissue specimens from an organ and to perform several functionalities when the device is inside the organ.

An energy source is offset from an elongate probe axis with an extension. The amount of offset of the energy source can be controlled by varying an amount of offset of the extension. The energy source rotated and translated at the offset distance to resect tissue. In some embodiments, the probe is configured to receive a second treatment probe comprising a second energy source, in which the second energy source is rotated and translated relative to the first treatment probe, which can improve positional accuracy and stability. The energy source and the extension can be coupled to a linkage to offset the energy source, and to translate and rotate the energy source with varying amounts of offset. The linkage can be coupled to a processor and one or more of the energy source moved in accordance with a treatment profile.

In one exemplary mode, a catheter apparatus includes an elongated deflectable element including a distal end, a flexible puller including a distal portion, and configured to be retracted through the deflectable element, and an expandable assembly including a plurality of resilient splines, each resilient spline including at least one electrode disposed thereon, the resilient splines being disposed circumferentially around the distal portion of the puller, with first ends of the splines being coupled with the distal end of the deflectable element and second ends of the splines coupled with the distal portion of the puller, the splines being configured to bow radially outward in a relaxed form of the expandable assembly and bow further radially outward when the puller is retracted expanding the expandable assembly from the relaxed form to an expanded form.

A catheter includes: (i) a shaft for insertion into an organ of a patient, (ii) an expandable distal-end assembly, which is coupled to the shaft and includes multiple splines, (iii) at least an ablation electrode, which is configured: (a) to be coupled to a spline of the splines, and (b) when placed in contact with tissue of the organ, to apply an ablation signal to the tissue, and the ablation electrode includes a slot, and (iv) a temperature sensor, which is contained within the slot and is configured, when the ablation electrode is placed in contact with the tissue, to produce a thermal signal indicative of a temperature of the tissue.

Various examples of an ablation end effector are shown and described with two balloons independently inflatable so that a distal balloon can be used to ensure stability of the second balloon for electrical ablation in a beating heart. Methods and techniques to operate the ablation end-effectors are also described.

An electrosurgical smoke evacuation pencil includes a handle housing having a proximal end portion and a distal end portion, the handle housing defining a first lumen therethrough. The electrosurgical pencil also includes a nozzle disposed within the first lumen and defining a second lumen, the nozzle being movable relative to and within the handle housing and extending proximally past the proximal end portion of the handle housing. The electrosurgical pencil may further include a swivel connector coupled to the distal end portion of the handle housing, the swivel connector configured to couple to a suction source. The electrosurgical pencil includes a hub assembly securedly disposed within the second lumen, the hub assembly including a conductive tube configured to couple to a source of electrosurgical energy, and an electrode slidably disposed within the conductive tube, the electrode being movable relative to and within the conductive tube.

The present invention relates to a device, system and method for determining a vital sign of a person. To improve accuracy and reliability of vital sign determination, the device comprises an input unit (20) for obtaining a vital sign related signal of at least a body part of the person, from which a vital sign can be derived, a body part position determining unit (21) for determining if said body part of the person is in contact with a support or not and generating a contact signal indicating if said body part is in contact with the support or not, a quality metric setting unit (22) for setting, based on said contact signal, a quality metric for use in the determination of a vital sign of the person, and a vital sign deriving unit (23) for deriving a vital sign from the obtained vital sign related signal, wherein the set quality metric is used in the derivation of the vital sign and/or in a judgment of the reliability of a derived vital.

An apparatus includes a catheter shaft assembly and an end effector. The catheter shaft assembly includes an outer sheath with a distal end. The end effector is associated with a distal end of the catheter shaft assembly. The end effector includes a plurality of leaflets. The leaflets are configured to transition between a first configuration and a second configuration. The leaflets are configured to fit within the outer sheath in the first configuration. The leaflets are configured to expand outwardly away from the longitudinal axis in the second configuration in response to being exposed distally relative to the distal end of the outer sheath. Each leaflet includes a flexible body and a plurality of electrodes. Each flexible body defines a plurality of openings. The electrodes are positioned on the flexible body.

A radio-frequency ablation catheter comprises a handle having a proximal end and a distal end, an outer tube assembly having a proximal end and a distal end, and an inner tube assembly having a proximal end and a distal end; the proximal end of the outer tube assembly is connected to the distal end of the handle; the proximal end of the inner tube assembly is connected to the distal end of the handle; the inner tube assembly can be driven by the handle to rotate relative to the outer tube assembly; the inner tube assembly comprises a branch electrode assembly, and the branch electrode assembly comprises a plurality of branch electrodes distributed at intervals in the circumferential direction. The branch electrode assembly of the radio-frequency ablation catheter and the radio-frequency ablation system can rotate relative to the outer tube assembly to avoid blood vessels.

An apparatus includes a shaft assembly, first and second electrode assemblies, and a controller. The shaft assembly is configured to fit in a nasal cavity of a patient. The first and second electrode assemblies are at the distal end of the shaft assembly. The second electrode assembly includes a stimulus electrode and a sensing electrode. The stimulus and sensing electrodes are positioned on opposing lateral sides in relation to the longitudinal axis of the shaft assembly. The controller is operable to generate an electrical signal to perform one or both of tissue ablation or denervation of a targeted nerve via the first electrode assembly, generate an electrical stimulus signal to stimulate the targeted nerve via the stimulus electrode of the second electrode assembly, and process a response signal received from the targeted nerve via the sensing electrode of the second electrode assembly.