Tuesday, May 5, 2015 Last update: 8:03 AM
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Medical

Surgical marker and cap

Surgery - Mon, 05/04/2015 - 1:56pm
A surgical marker and cap are useable to mark tissue in laparoscopic procedures. The surgical marker connects to a rod and can be pushed through a cannula to target tissue that is to be marked. The marker can include a decreased length by moving the location of the ink reservoir...
Categories: Medical

Gastrointestinal neuromodulation and associated systems and methods

Surgery - Mon, 05/04/2015 - 1:56pm
Methods for treating gastrointestinal conditions, conditions associated with sympathetic and/or parasympathetic activity in the gastrointestinal organs, and conditions associated with central sympathetic and/or parasympathetic activity in a patient with therapeutic gastrointestinalneuromodulation and associated systems and methods are disclosed herein. One aspect of the present technology is directed to methods that...
Categories: Medical

Feedback system for cryoablation of cardiac tissue

Surgery - Mon, 05/04/2015 - 1:56pm
A method and system for providing lesion depth feedback during an ablation procedure. In particular, the method and system provide feedback data or information relating to lesion depth in myocardial tissue during a cryoablation procedure. A plurality of tissue temperature measurements may be transmitted from a plurality of thermocouples disposed...
Categories: Medical

Method and apparatus for tissue ablation

Surgery - Mon, 05/04/2015 - 1:56pm
The present invention is directed toward a device that performs ablation of tissue. The device has a catheter with a shaft through which an ablative agent can travel, a first positioning element attached to the catheter shaft at a first position and a second positioning element attached to the catheter...
Categories: Medical

Cooled microwave denervation catheter with insertion feature

Surgery - Mon, 05/04/2015 - 1:56pm
A catheter is disclosed for creating a lesion in nerve-containing tissue spaced from a body lumen while protecting tissue forming and adjacent to a wall of the body lumen from injury. The catheter includes a catheter body having at least one fluid passage therein, a balloon in communication with the...
Categories: Medical

Resonant inverter with a common mode choke

Surgery - Mon, 05/04/2015 - 1:56pm
The present disclosure is directed to an electrosurgical generator including a tank configured to output energy and an H-bridge configured to drive the tank. The generator also includes a choke. The choke impedes a common mode current generated by the H-bridge and provides a leakage inductance for the tank....
Categories: Medical

Spectral sensing of ablation

Surgery - Mon, 05/04/2015 - 1:56pm
A method for tissue assessment includes ablating tissue at a site within a body of a living subject using an invasive probe applied to the site. At a first stage in ablation of the tissue, first measurements are made of scattered light intensities from the site at a plurality of...
Categories: Medical

Electrosurgical medical system and method

Surgery - Mon, 05/04/2015 - 1:56pm
A system for controlling an electrosurgical electrode of a medical device includes a hand-held electrosurgical electrode having cutting probe. A return electrode is positioned remote from the electrosurgical electrode. An RF generator is coupled to the electrosurgical electrode and to the return electrode, and includes an RF amplifier. The RF...
Categories: Medical

Guard device for surgical cutting and evoked potential monitoring system

Surgery - Mon, 05/04/2015 - 1:56pm
A guard for use with a surgical cutting system. The guard includes a housing and wiring. The housing defines a longitudinal passageway, and is configured for releasable attachment to an instrument handpiece. The wiring is coupled to the housing and includes an electrically conductive wire and an insulative material. The...
Categories: Medical

Devices and methods for left atrial appendage closure

Surgery - Mon, 05/04/2015 - 1:56pm
Described here are devices, systems, and methods for closing the left atrial appendage. The methods described here utilize a closure device for closing the left atrial appendage and guides or expandable elements with ablation or abrading elements to ablate or abrade the left atrial appendage. In general, these methods include...
Categories: Medical

Electrode ablation balloon catheter

Surgery - Mon, 05/04/2015 - 1:56pm
Methods, systems, and devices for providing treatment to a tissue in body lumens are described. The system may include a support shaft, an expansion member coupled with a distal portion of the support shaft, and an ablation structure wrapped around the expansion member less than a circumference of the expansion...
Categories: Medical

Electrode assembly for catheter system including interlinked struts

Surgery - Mon, 05/04/2015 - 1:56pm
The present disclosure provides ablation catheter systems and electrode assemblies and electrode baskets for use in the ablation catheter systems that include an interlinked diamond configuration formed from a plurality of strut assemblies. Each strut assembly includes one or more struts that are manufactured from a thermoplastic or metallic material....
Categories: Medical

Electrode assembly having asymmetric electrode placement

Surgery - Mon, 05/04/2015 - 1:56pm
The present disclosure provides ablation catheter systems and electrode assemblies, including electrode baskets, for use in the ablation catheter systems for ablating tissue. The electrode baskets include a plurality of struts having a plurality of electrodes asymmetrically arranged on the plurality of struts such that upon simultaneous energizing of the...
Categories: Medical

Embedded thermocouple in denervation flex circuit

Surgery - Mon, 05/04/2015 - 1:56pm
A medical device for sympathetic nerve ablation may include a catheter shaft, an expandable member disposed on or coupled to the catheter shaft, and a plurality of elongate electrode assemblies each constructed as a flexible circuit having a plurality of layers. The expandable member may be configured to shift between...
Categories: Medical

High strength electrode assembly for catheter system including novel electrode

Surgery - Mon, 05/04/2015 - 1:56pm
The present disclosure is directed to electrode assemblies, and specifically to struts comprising electrode assemblies and electrodes contained on the struts. The electrode assembly struts are constructed to have a low profile and to have superior strength over the length of the strut such that an electrode assembly including the...
Categories: Medical

Method and apparatus for sparing pain conducting nerves during renal denervation

Surgery - Mon, 05/04/2015 - 1:56pm
An intravascular catheter for peri-vascular nerve activity ablation and/or sensing includes multiple needles advanced through supported guide tubes (needle guiding elements) which expand with open ends around a central axis to contact the interior surface of the wall of the renal artery or other vessel of a human body allowing...
Categories: Medical

Unfurling electrode devices with spring

Surgery - Mon, 05/04/2015 - 1:56pm
Methods, systems, and devices for providing treatment to a tissue in body lumens are described. The system may include a catheter, an expansion member coupled with a distal portion of the catheter, an ablation structure including one or more longitudinal electrode segments, and an ablation structure support coupled to the...
Categories: Medical

Unfurling electrode devices with the multiple longitudinal electrode segments

Surgery - Mon, 05/04/2015 - 1:56pm
Methods, systems, and devices for providing treatment to a tissue in body lumens are described. The system may include a catheter, an expansion member coupled with a distal portion of the catheter, an ablation structure including one or more longitudinal electrode segments, and an ablation structure support coupled to the...
Categories: Medical

Unfurling electrode devices with the protection element

Surgery - Mon, 05/04/2015 - 1:56pm
Methods, systems, and devices for providing treatment to a tissue in body lumens are described. The system may include a catheter, an expansion member coupled with a distal portion of the catheter, an ablation structure including one or more longitudinal electrode segments, and an ablation structure support coupled to the...
Categories: Medical

Combination electrosurgical device

Surgery - Mon, 05/04/2015 - 1:56pm
An electrosurgical device comprising: (a) forceps including: (i) a first working arm and (ii) a second working arm; (b) a blade electrode; wherein the electrosurgical device is capable of being switched between a first electrical configuration so that the electrosurgical device delivers a first therapy current through the first working...
Categories: Medical