A system for deploying needles in tissue includes a controller and a visual display. A treatment probe has both a needle and tines deployable from the needle which may be advanced into the tissue. The treatment probe also has adjustable stops which control the deployed positions of both the needle and the tines. The adjustable stops are coupled to the controller so that the virtual treatment and safety boundaries resulting from the treatment can be presented on the visual display prior to actual deployment of the system.

A system for deploying needles in tissue includes a controller and a visual display. A treatment probe has both a needle and tines deployable from the needle which may be advanced into the tissue. The treatment probe also has adjustable stops which control the deployed positions of both the needle and the tines. The adjustable stops are coupled to the controller so that the virtual treatment and safety boundaries resulting from the treatment can be presented on the visual display prior to actual deployment of the system.

A surgical instrument includes a body, an ultrasonic blade, a clamp arm, and a resilient member. The body includes an electrical conductor and defines a longitudinal axis. The clamp arm is pivotably coupled with the body at a pivot assembly. The clamp arm is operable to compress tissue against the ultrasonic blade. The clamp arm includes an electrode operable to apply RF energy to tissue, wherein the clamp arm is configured to be loaded onto and removed from the body at the pivot assembly along a path that is transverse to the longitudinal axis defined by the body. The resilient member is located within the pivot assembly. The resilient member is configured to provide electrical continuity between the electrode of the clamp arm and the electrical conductor of the body.

An improved gastric tube for displacing a section of an esophagus during cardiac ablation procedures is disclosed. The improved gastric tube is an elongated flexible tube designed to be inserted in the esophagus of a patient and extended past the portion of the esophagus which overlies the heart. The improved gastric tube includes a first lumen extending the length of the tube which receives a control wire, plastic stylet, or other apparatus which would function for displacement of the portion of the esophagus overlying the heart. A second lumen is included which extends to the operative section of the gastric tube, where the esophagus overlies the heart, so that contrast liquid or cooling liquid can be injected into the esophagus at that location. A temperature sensor can also be included to measure the temperature of the esophageal wall, as well as electrodes to connect to a three-dimensional mapping system.

Provided is a traction device for curved balloon catheter, which is characterized by comprising: a catheter (5) with a handle (2) at one end, a locator (3) and a traction balloon (4) arranged outside the catheter (5), which one or more cavities are arranged in the catheter (5), the catheter part is provided with at least one hole, at least one cavity fills and discharges the traction balloon (4) with fluid through the hole, the traction balloon (4) bends to one side when filled with fluid, and the handle (2) can drive the catheter (5) and the traction balloon (4) to rotate, thus realizing a simple and reliable traction.

A system comprising: a fluid supply configured for the delivery of a fluid; a hollow body in fluid-communication with the fluid supply, the hollow body configured to be disposed between a first biological surface and a second biological surface; and a mechanism configured to control delivery of fluid from the fluid supply and through the hollow body to create separation between the first biological surface and the second biological surface.

A system comprising: a fluid supply configured for the delivery of a fluid; a hollow body in fluid-communication with the fluid supply, the hollow body configured to be disposed between a first biological surface and a second biological surface; and a mechanism configured to control delivery of fluid from the fluid supply and through the hollow body to create separation between the first biological surface and the second biological surface.

A tissue guard includes a body having a proximal end portion and a distal end portion. The body includes an inner body defining a passageway therethrough and an outer body disposed about the inner body such that an annular flow channel is defined therebetween. A proximal lip extends radially outwardly from the proximal end portion of the body. A plurality of ribs is disposed within the annular flow channel and arranged to define a helical configuration to establish a helical fluid flow path through the annular flow channel upon application of suction therethrough.

Medical devices and related methods for transforming bone, other tissue, or other material are disclosed herein. According to an aspect, a cutting device includes a static casing that defines a sheathing slot and an opening. The sheathing slot extends to the opening and has a first height at an end of the opening. Further, the bone cutting device includes a horn including a first end and a second end. The first end is configured to operatively connect to a source of movement. Further, the second end includes a cutting component having a second height. The first height is greater than the second height.

A tissue guard includes a body having a proximal end portion and a distal end portion. The body includes an inner body defining a passageway therethrough and an outer body disposed about the inner body such that an annular flow channel is defined therebetween. A proximal lip extends radially outwardly from the proximal end portion of the body. A plurality of ribs is disposed within the annular flow channel and arranged to define a helical configuration to establish a helical fluid flow path through the annular flow channel upon application of suction therethrough.