A method for use with an intra-body probe, a distal end of which includes an ablation electrode and a temperature sensor, is described. While (i) the ablation electrode is driving an ablating current into tissue of a subject, and (ii) fluid is passed from the distal end of the intra-body probe at a fluid-flow rate, a processor receives a temperature sensed by the temperature sensor. The processor estimates a temperature of the tissue, based at least on the sensed temperature and at least one parameter selected from the group consisting of: the fluid-flow rate, and a parameter of the ablating current. The processor generates an output in response to the estimated temperature. Other embodiments are also described.

The present disclosure provides a device and a method for cooling living tissues for a medical purpose and other purposes. The cooling device comprises: a container configured to accommodate a cooling medium and thermally coupled with the cooling medium by directly contacting the cooling medium; a cooling generator configured to be thermally coupled with the container by a direct contact and thereby to provide cooling energy to the cooling medium; and a heat sink dissipating heat from the cooling generator, the heat sing being configured to be spaced apart from the cooling generator and to be thermally coupled with the cooling generator without a direct contact with the cooling generator.

A sheath adapted for use with a catheter is disclosed comprising an electrical lead having a proximal end and a distal end and a lumen extending from the proximal end to the distal end, the electrical lead including a tubular member of non-conductive material. At least a first set of electrical conductors and a second set of electrical conductors extend from the proximal end to the distal end laid on the non-conductive tubular member, and an outer layer of non-conductive material is applied over the electrical conductors to cover the conductors. One or more electrodes are disposed on a distal portion of the sheath. Each electrode is in electrical communication with at least one of the electrical conductors through the outer layer. The first set of electrical conductors is helically wrapped around the lumen and the second set of electrical conductors is helically wrapped around the first set of electrical conductors.

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.

The invention relates to a dispensing system for use in cryogenic skin treatment that is capable of targeted delivery of a cryogen at a high rate, thereby achieving rapid freezing of targeted skin tissue. The dispensing system of the present invention uses a cryogen that contains dimethyl ether and is designed to deliver the cryogen in an accurate and very effective manner.

Aspects of the present disclosure are directed toward systems and methods for detecting force applied to a distal tip of a medical catheter. A medical catheter includes a deformable body near a distal tip of the catheter that deforms in response to a force applied at the distal tip, and a sensor detects various components of the deflection. Processor circuitry may then, based on the detected components of the deformation, determine a force applied to the distal tip of the catheter.

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 lumen extension member is provided for a catheter having a catheter body and an elongate electrode coupled to the catheter body. The elongate electrode defines an electrode lumen extending therethrough. The lumen extension member is positioned within the electrode lumen and is coupled to the catheter body. The lumen extension member includes a tubular member including a sidewall and at least one opening that extends through the sidewall.

A medical device includes a body and at least one electrode disposed thereon. The electrode includes a metallic substrate, such as a platinum group metal, an alloy of platinum group metals, or gold. The surface of the substrate is modified in a manner that increases its effective surface area without inducing bulk heating. For example, the surface of the substrate can be laser textured and/or coated, such as with titanium nitride or iridium oxide.

A perfusion control method, apparatus and system for syringe pump, and a computer-readable storage medium, wherein the method includes: when an ablation task is triggered, controlling the syringe pump to execute a perfusion operation on an ablation object, and acquiring an impedance value and/or a temperature value of the ablation object in real time; analyzing the acquired impedance value and/or temperature value to obtain real-time change information of the impedance value and/or temperature value; and adjusting a perfusion amount of the syringe pump dynamically according to the real-time change information obtained from the analysis. By means of the perfusion control method, apparatus and system for syringe pump, and the computer-readable storage medium, dynamic adjustment of the perfusion amount of the syringe pump can be achieved, thereby improving the timeliness and accuracy of liquid perfusion during the process of executing an ablation task.