A catheter system for treating a treatment site within or adjacent to a vessel wall or a heart valve includes an energy source, a balloon, an energy guide, and an electrical analyzer assembly. The energy source generates energy. The balloon is positionable substantially adjacent to the treatment site. The balloon has a balloon wall that defines a balloon interior that receives a balloon fluid. The energy guide is configured to receive energy from the energy source and guide the energy into the balloon interior. The electrical analyzer assembly is configured to monitor a balloon condition during use of the catheter system. The electrical analyzer assembly can include a first electrode, a second electrode, and an impedance detector that is electrically coupled to the first electrode and the second electrode. The impedance detector is configured to detect impedance between the first electrode and the second electrode.

A portable electrocauter used especially for electrofulguration, electrodesiccation and electrocoagulation contains a source of energy and an applicator. The electrocauter is provided with the source of DC with the maximal current of 1 mA and voltage between 0.8 to 12 kV. The applicator is provided with precisely aiming finish and the patient is conductively connected with the equipment by disposable grounding electrode while the output of the discharge between the working electrode and the surface of the skin is in the range of 0.3 to 4.0 W.

A catheter system (100) for placement within a blood vessel (108) having a vessel wall (108A) for treating a treatment site (106) within or adjacent to the vessel wall (108A) within a body (107) of a patient (109) includes a system console (123), one or more energy guides (122A), and an optical connector assembly (251). The system console (123) includes an energy source (124) and a console connection aperture (148). The one or more energy guides (122A) are configured to receive energy from the energy source (124). The optical connector assembly (251) includes a guide coupling housing (250) that retains at least a portion of each of the one or more energy guides (122A). The guide coupling housing (250) is configured to be mechanically connected to the system console (123) with at least a portion of the guide coupling housing (250) being configured to fit and be selectively retained within the console connection aperture (148) so that the one or more energy guides (122A) are adjustably and more precisely aligned within the guide coupling housing (250) and relative to the energy from the energy source (124) to receive the energy from the energy source (124).

An electrosurgical device for recognizing tissue by means of spectral analysis of the light generated at an electrode. An acoustic or optical indicator device displays the tissue type permanently or when detecting certain tissue. Indicators, in particular optical indicators, are arranged in the application field of view, so as to support the user in response to making an incision.

Described is a medical instrument (1) for the minimally invasive removal of biological material from a human or animal body with a hollow needle (2), which, at a distal end (4) delimiting an interior (3) of the hollow needle (2), includes a peripheral edge (5) having a cutting edge, at least in sections, and with a cutting wire (6), which is arranged such that the cutting wire (6) can be moved relative to the hollow needle (2) at least partially outside the interior (3).

The technical solution described is characterized in that, in the interior (3) of the hollow needle (2), a guide element (7), slidable in the longitudinal direction of the hollow needle (2), is provided, at which the cutting wire (6) is fastened at least at one point and that a means of movement (8) for moving the cutting wire (6) is provided, through which a length of a part of the cutting wire (6) located outside the interior (3) can be changed in a targeted manner as a function of the actuation of a control element (11) acting on the means of movement (8).

A catheter system (100) used for treating a treatment site (106) within or adjacent to the heart valve (108) includes an energy source (124), an energy guide (122A), and a balloon assembly (104). The energy source (124) generates energy. The energy guide (122A) is configured to receive energy from the energy source (124). The balloon assembly (104) is positionable substantially adjacent to the treatment site (106). The balloon assembly (104) includes an outer balloon (104B) and an inner balloon (104A) that is positioned substantially within the outer balloon (104B). Each of the balloons (104A, 104B) has a balloon wall (130) that defines a balloon interior (146). Each of the balloons (104A, 104B) is configured to retain a balloon fluid (132) within the balloon interior (146). The balloon wall (130) of the inner balloon (104A) is positioned spaced apart from the balloon wall (130) of the outer balloon (104B) to define an interstitial space (146A) therebetween. A portion of the energy guide (122A) that receives the energy from the energy source (124) is positioned within the interstitial space (146A) between the balloons (104A, 104B) so that a plasma-induced bubble (134) is formed in the balloon fluid (132) within the interstitial space (146A).

A method is disclosed for delivering energy to a region of tissue within a patient's body using a medical treatment system. The medical treatment system comprises an energy delivery device coupled to an energy source and the method includes steps of delivering energy, measuring an energy delivery parameter, determining distance of the energy delivery device from a conductive object and optionally adjusting a position of the energy delivery device based on the determined distance.

A tissue cutting device has an outer sleeve with a distal window and an inner cutting sleeve which moves past the window to cut tissue. The inner cutting sleeve has a lumen which may have a larger proximal diameter than distal diameter. A perimeter of the window may comprise a dielectric material. A distal edge of the inner sleeve may be displaced inwardly.

A tissue analysis device is described having a light receiving device and a spectrometer device for determination of tissue characteristics which includes an evaluation device connected with an assignment device. The evaluation device serves for determination of at least one tissue characteristic of a biological tissue, e.g. of its type or an infection with a disease. The assignment device serves for assignment of a suitable transmission curve model that models the contamination of the light receiving device. For different degrees of contamination different transmission curve models are provided that comprise reliability values for each tissue characteristic that can be determined respectively. Not only the tissue analysis can be achieved, but also the indication of the reliability with which the analysis has been carried out, i.e. how reliable the indication of the tissue characteristic is.

The present disclosure relates to electrosurgical systems and methods for controlling electrical treatment energy in connection with electrical arcs. A method in accordance with the present disclosure includes providing electrical treatment energy to an instrument based on an indicated electrical energy level, accessing voltage signal values over time relating to voltage of the electrical treatment energy and/or current signal values over time relating to current of the electrical treatment energy, determining whether an arc generated by the instrument is an arc to be maintained or an arc to be extinguished based on a threshold value and at least one of the voltage signal values or the current signal values, and controlling the electrical treatment energy based on determining that the arc is an arc to be extinguished.