The invention provides for a system for estimating a 3-dimensional treatment volume for a device that applies treatment energy through a plurality of electrodes defining a treatment area, the system comprising a memory, a display device, a processor coupled to the memory and the display device, and a treatment planning module stored in the memory and executable by the processor. In one embodiment, the treatment planning module is adapted to generate an estimated first 3-dimensional treatment volume for display in the display device based on the ratio of a maximum conductivity of the treatment area to a baseline conductivity of the treatment area. The invention also provides for a method for estimating 3-dimensional treatment volume, the steps of which are executable through the processor. In embodiments, the system and method are based on a numerical model which may be implemented in computer readable code which is executable through a processor.

An integrated ablation needle (100), comprising a cannula (10) and an electrode needle (20) that is movably and penetratingly installed within the cannula (10); the electrode needle (20) comprises a needle tip (21) located at the far end and a needle rod (23) connected to the near end of the needle tip (21); at least a portion that is near to the needle tip (21) of the needle rod (23) is provided with a sampling groove (231); and the far end of the cannula (10) is provided with a cutting edge (11). The cannula (10) moves along the axial direction relative to the needle rod (23) so as to expose or cover the sampling groove; when the sampling groove (231) is exposed, a tissue portion around the needle rod (23) enters the sampling groove (231); and when the sampling groove (231) is covered, the cutting edge (11) cuts off tissue inside and outside of the sampling groove (231), such that the tissue within the sampling groove (231) is acquired as a biopsy sample. Further provided is an ablation system (1000) comprising an integrated ablation needle (100). The integrated ablation needle (100) and the ablation system (1000) integrate ablation and biopsy functions on the same ablation needle (100), without needing to independently execute a biopsy step, thus avoiding repeated puncturing, reducing damage to the human body, and reducing operation time.

Embodiments described relate to a medical device including an invasive probe such as a guidewire that, when inserted into a duct (e.g. vasculature) of an animal (e.g., a human or non-human animal, including a human or non-human mammal), may be used to aid in diagnosing and/or treating a lesion of the duct (e.g. a growth or deposit within vasculature that fully or partially blocks the vasculature). The invasive probe may have one or more impedance sensors to sense characteristics of the lesion, including by detecting one or more characteristics of tissues and/or biological materials of the lesion. There is further described a method of assembling such a medical device.

This disclosure describes the methods, devices, and systems of treating diseased tissue with integrated nanosecond pulse irreversible electroporation. Methods and systems as disclosed provide MRI compatible shielded electrodes and electrode leads to prevent emanating radiofrequency noise and improve image quality, disconnecting the electrode from the cable linkage to the pulse generator reduce electromagnetic interference and image artifacts, placing electrodes strategically within a guide cannula to minimize distortion from heterogeneities or maximize ablation within the tissue, utilizing conductive fluids, innate or external, such as cerebral spinal fluid or grounding pads to provide a pathway for current return, and for timing of the electrical waveforms with inherent brain electrical activity.

An electrocautery unit for connecting to a handle of an electrocautery device, the unit comprises a body, a light unit and an electrode. The body has a body proximal end and a body distal end, and a body axis extending lengthwise along the center of the body. The body’s proximal end comprises a connecting element for connecting said body to a handle having a handle axis extending lengthwise along the center of the handle, so that said body axis is coaxial with said handle axis when said body is connected to said handle. The light unit may be constructed and arranged to emit a light having a central axis coaxial with said body axis. The electrode comprises a proximate end connected to the body distal end, and an electrode tip at a distal said. When the electrode is connected to the body, the electrode lays outside of the body axis and extends into said body axis such that the electrode tip is within said body axis, wherein said light and said electrode tip are coaxial to said body axis and said handle axis.

A method for treating hypertrophic cardiomyopathy (HCM) utilizes an RF ablation electrode needle system that has an RF ablation generator, and an electrode needle. The distal end of the electrode needle is introduced to puncture within myocardium after piercing through epicardium and then advanced along an intramyocardial pathway between endocardia at two lateral sides of the interventricular septum to reach a hypertrophic area of an interventricular septum. The RF ablation generator is then turned on to implement single-point or multi-point ablation on the hypertrophic area of the interventricular septum, and then the RF electrode needle is withdrawn from the patient.

Embodiments of the present disclosure provide a method and apparatus for filtering and surgical procedures. An exemplary apparatus includes an evacuation tube having a filter, a long axis and a hollow conduit extending through the long axis, the hollow conduit fluidly connecting a tube inlet and a tube outlet, the filter located within the hollow conduit operable to remove particles from a flow passing through the hollow conduit from the tube inlet to the tube outlet.

A medical device system for the delivery of energy to a region of a patient's anatomy is provided. An introducer tube defines a lumen therein and bears a first electrode. A second electrode is movable within the lumen between a retracted position and an extended position. In the retracted position, the second electrode is substantially disposed within the lumen. In the extended position, the second electrode extends at least partially beyond the distal end of the introducer tube. In one form, the introducer tube is configured to substantially hold the second electrode within the lumen in a predetermined orientation in the extended position, and the introducer tube prevents the second electrode from substantially rotating within the lumen of the introducer tube during movement into the extended position. In one form, the introducer tube is more flexible in a first plane than in a second plane.

A method and apparatus are disclosed for simultaneously providing a plurality of probe response signals indicative of electrical activity at a respective plurality of locations in a patient. The apparatus comprises a rigid needle shaft element comprising a piercing tip and a substrate supporting a plurality of electrode tracks, secured to the needle shaft element and extending along the shaft element away from the piercing tip. Each electrode track extends from a sensing end region arranged for providing a respective probe response signal responsive to localised electrical activity, along the region of the substrate, to a respective bond pad connection region. Recording surface regions of the plurality of electrode tracks are spaced apart in a plurality of substantially linear spaced apart configurations along the substrate.

The present disclosure is directed to devices, systems, and methods for sensing and discerning whether a distal portion of a fat grafting cannula or probe is disposed in fat tissue or muscle tissue during fat grafting procedures. In one aspect of the present disclosure, a fat grafting cannula or probe is provided including first and second electrodes. Each electrode is coupled to a circuit, e.g., disposed in an electrosurgical generator. During a fat grafting procedure, the electrodes contact patient tissue. Based on signals received from each electrode, the circuit is configured to determine whether a distal portion of the fat grafting cannula is disposed in a fat tissue or muscle tissue. If the circuit determines that the fat grafting cannula is disposed in muscle tissue, the surgeon operating the fat grafting cannula is alerted to ensure that processed fat is not injected into the muscle tissue of the patient.