The invention provides an electrosurgical instrument for delivering radiofrequency and microwave energy to biological tissue in order to cut and coagulate the tissue. The electrosurgical instrument comprises a coaxial transmission line for conveying radiofrequency (RF) energy and microwave energy, and an energy delivery tip coupled to a distal end of the coaxial transmission line. The energy delivery tip comprises: a first electrode electrically coupled to an inner conductor of the coaxial transmission line and protruding beyond a distal end of an outer conductor of the coaxial transmission line; a second electrode electrically coupled to the outer conductor of the coaxial transmission line and extending coaxially along a portion of the first electrode; and a dielectric body disposed between the first electrode and second electrode. The first electrode comprises a projecting nib that protrudes beyond a distal end of the dielectric body. The second electrode and the dielectric body comprise portions that are exposed at the distal end of the energy delivery tip. The first electrode and second electrode are configured as (i) a bipolar structure for delivering the RF energy conveyed by the coaxial transmission line, and (ii) an antenna for radiating the microwave energy conveyed by the coaxial transmission line.

Methods, apparatuses, and systems are described for stent delivery and positioning for transluminal application. The method may include positioning the stent in an undeployed configuration through an access site in a wall of a first body lumen. In some cases, the method may include retracting an outer sheath proximally and past an anchoring component disposed at a distal portion of an inner tubular member based on positioning the stent. A distal portion of the stent may be disposed between the anchoring component and the outer sheath while the stent is in the undeployed configuration. The method may further include deploying the distal portion of the stent from the outer sheath and within the first body lumen and expanding a proximal portion of the stent from within the outer sheath such that upon fully exiting the outer sheath, the proximal portion expands to a deployed configuration within a second body lumen.

A surgical instrument includes a shaft having a proximal end and a distal end and end effector coupled to the distal end of the shaft. An electrical transmission conduit extends along the shaft from the proximal end to the distal end and is configured to deliver electrical energy to energize the end effector. A connector assembly electrically couples the electrical transmission conduit to the end effector, and the end effector is pivotably coupled to the connector assembly. In another aspect, a surgical instrument includes a pin, an electrically conductive connector including a contact portion and an attachment, the contact portion surrounding the pin. An electrical conduit is electrically coupled to the attachment of the connector. An electrically conductive jaw including an aperture is pivotable around the contact portion, and the contact portion electrically contacts the jaw at the aperture of the jaw.

A system is configured to bring about anastomosis between two lumens in a patient or between two sections of a single lumen in a patient. The anastomosis system includes a first tissue-compressing element, a second tissue-compressing element, and an energy source. The energy source can be a thermal energy source or laser energy source. Tissue is interposed between the elements. Magnetic material incorporated into the tissue-compressing elements facilitates the alignment of the elements as well as compression of the interposed tissue. The energy source can deliver energy to tissue. This delivery of energy can cause local changes to the tissue that can help maintain positional stability of the implants, can bring about immediate patency of the anastomosis and can otherwise facilitate achieving desired outcomes for the patient.

A cosmetic method for treating a skin of a person is presented, the method comprises inserting one or more needles to one or more depths into the skin of the person such that at least a tip of at least one needle of the one or more needles is deployed within a muscle layer of the person's skin; applying a negative DC voltage to the one or more needles, while a skin of the person is in contact with a positive electrode to form one or more closed circuits of DC current through the person's body; and providing the DC current for a pre-selected amount of time to damage and/or ablate muscles and/or muscle nerve cells in the muscle layer; thereby providing a skin treatment comprising reducing and/or smoothing wrinkles from the person's skin.

An electrode assembly for an electrosurgical instrument includes a housing configured to operably receive a distal end of an electrosurgical instrument shaft, the housing encapsulating an insulative core sandwiched between a pair of return electrodes. The insulative core includes a slot defined about a periphery thereof configured to partially receive an active electrode. The active electrode and the pair of return electrodes are adapted to connect to opposite polarities of an electrosurgical generator. A tensioning mechanism is configured to tension the active electrode about the insulative core during assembly.

A bone tumor surgery device according to an embodiment of the present invention comprises: an accommodation container in which an accommodation space for accommodating a bone of a patient is formed; and a radiofrequency supply unit for supplying radiofrequency into the accommodation space.

A method and apparatus that reduces the time and trauma associated with tissue removal procedures such as Ultrasound Assisted Liposuction, which emulsifies and then extracts unwanted adipose from a patient's target zone. Emulsification and suction are optimized and performed in a synchronous manner by a single apparatus to improve the outcome and minimize, if not eliminate, the limitations, risks and complications caused by current state of the art techniques.

Devices and methods can be used for performing transoral surgery. For example, this document provides oral retractor devices and articulating surgical tools that are well-suited for transoral surgery uses. The devices and methods provided herein may be used to treat conditions such as, but not limited to, mouth cancer, throat cancer, tongue cancer, larynx cancer, tonsil cancer, obstructive sleep disorders, and pharyngeal diverticulum, to provide some examples.

A probe is configured with a flushing port and an evacuation port to establish a flow path to remove blood from a resected tissue. The probe comprises a balloon configured to expand and contact the resected tissue to compress filaments and improve access to the underlying blood vessels for coagulation with an energy source. An endoscope can be used to view the tissue, and the balloon may comprise a transparent material or a viewing port to allow imaging of the bleeding tissue through the balloon. The probe may have a light source to illuminate the tissue with a beam oriented at an oblique angle to the tissue surface, which can decrease interference from blood and may allow more localized coagulation of the blood vessel.