Disclosed herein are a surgical navigation instrument having a needle electrode depth adjusting structure for detecting impedance and a high frequency energy control method using the same. The present invention can detect impedance of tissues while applying a pilot signal to an electrode of a high frequency needle according to impedance conditions of the tissues to detect impedance of the tissues, and determine an applied amount of high frequency energy output to high frequency needles according to the detected impedance, thereby reducing patients' pains, maximizing treatment effect, and reducing treatment time according to high frequency energy applied to various depths at the same treatment point when performing a surgical procedure with the same or different treatment parameters according to disease symptoms while selecting the insertion number of high frequency needles, which can be adjusted in penetration depth, into the skin.

Systems and methods for a soft tissue treatment of a patient are provided herein. The device for a soft tissue treatment may include an applicator having at least one electrode, a fastening mechanism to fix the applicator to a body part of the patient, and a control unit having a microprocessor to control the at least one electrode. The at least one electrode may provide radiofrequency energy and pulsed electric current. The radiofrequency energy may cause a heating of a soft tissue. The electric current may cause contraction of a muscle within the body part. The body part may be a face.

An ablation instrument comprises an elongate shaft having a cannula channel and a scope channel, and an electrode disposed in the cannula channel. The electrode is slidable between a first position in which a distal end of the electrode is contained within the cannula channel, and a second position in which the distal end of the electrode extends out of a distal opening of the cannula channel. The ablation instrument further comprises a distal head coupled to the elongate shaft and configured for contacting solid tissue.

An elongate electrode is configured to flex and generate plasma to incise tissue. An electrical energy source operatively coupled to the electrode is configured to provide electrical energy to the electrode to generate the plasma. A tensioning element is operatively coupled to the elongate electrode. The tensioning element can be configured to provide tension to the elongate electrode to allow the elongate electrode to flex in response to the elongate electrode engaging the tissue and generating the plasma. The tensioning element operatively coupled to the flexible elongate electrode may allow for the use of a small diameter electrode, such as a 5 μm to 20 μm diameter electrode, which can allow narrow incisions to be formed with decreased tissue damage. In some embodiments, the tensioning of the electrode allows the electrode to more accurately incise tissue by decreasing variations in the position of the electrode along the incision path.

Aspects described herein pertain to restoring damaged portions of tooth or bone using plasma mediated deposition. In an embodiment, a biocompatible carrier gas is ionized to form a biocompatible atmospheric plasma stream. Restoration material, such as nano-scale powdered hydroxyapatite, is introduced into the plasma stream, which is then applied to a damaged portion of a bone or tooth. The restoration material is deposited on the damaged portion of the bone or tooth, thus restoring a shape and mechanical integrity of the bone or tooth.

A surgical system for performing a capsulotomy of a lens capsule of an eye includes an elastic ring, a suction cup, an interface, a converter, and a control console. The elastic ring includes a conductive surface. The interface may be coupled to an air port and/or a fluid line of a phacomachine. The converter detects a pulse of air from the phacomachine via the interface, and produce an electrical signal in response. Fluid received from the phacomachine is delivered into the suction cup. The system is configured to remove the fluid from the suction cup and between the suction cup and a surface of the eye to form a suction seal. The control console is configured to, in response to receiving the electrical signal, drive a series of electrical pulses through the conductive surface of the elastic ring, causing the elastic ring to perform a tissue cutting operation.

An unattended approach can increase the reproducibility and safety of the treatment as the chance of over/under treating of a certain area is significantly decreased. On the other hand, unattended treatment of uneven or rugged areas can be challenging in terms of maintaining proper distance or contact with the treated tissue, mostly on areas which tend to differ from patient to patient (e.g. facial area). Delivering energy via a system of active elements embedded in a flexible pad adhesively attached to the skin offers a possible solution. The unattended approach may include delivering of multiple energies to enhance a visual appearance.

Electrosurgical pericardiotomy devices are disclosed. An example electrosurgical pericardiotomy device configured to create an opening through a pericardium may include an end effector comprising a tip portion and at least one electrosurgical electrode. The tip portion may include an opening configured to engage a target portion of a pericardium, and the tip portion may be configured, upon application of vacuum to the tip portion, to separate the target portion of the pericardium from an external surface of a heart. The electrosurgical electrode may be disposed proximate the tip portion so that, with vacuum applied to the tip portion, the target portion of the pericardium contacts the electrosurgical electrode. The electrosurgical electrode may be configured to create an opening through the target portion of the pericardium using electrosurgical energy.

An ablation catheter including an elongate shaft, an inflatable balloon positioned at a distal region of the elongate shaft, a first ablation electrode disposed outside of and carried by an outer surface of the inflatable balloon, a first ultrasound transducer disposed outside of the inflatable balloon, and a flexible circuit. The flexible circuit includes a first conductor and a second conductor and is disposed outside of and carried by the outer surface of the inflatable balloon. The first conductor is in electrical communication with the first ablation electrode, and the second conductor in electrical communication with the first ultrasound transducer.

Systems and methods deploy an electrode structure in contact with the tissue region. The electrode structure carries a sensor at a known location on the electrode structure to monitor an operating condition. The systems and methods provide an interface, which generate an idealized image of the electrode structure and an indicator image to represent the monitored operating condition in a spatial position on the idealized image corresponding to the location of the sensor on the electrode structure. The interface displays a view image comprising the idealized image and indicator image. The systems and methods cause the electrode structure to apply energy to heat the tissue region while the view image is displayed on the display screen.