Abstract: A method and device for controlling a treatment procedure includes a treatment tool, an energy source, and a controller. The controller controls the energy source such that in a first treatment phase, power fed into the material to be treated is controlled with an increasing course. An impedance detector determines the impedance course and/or the present impedance of the material to be treated, and recognizes the achievement of an impedance minimum. A timer is started upon recognition of an impedance minimum, and upon recognition of a further impedance minimum within the specific time interval, the timer is reset. If no new impedance minimum is detected within the specific time interval and the time interval expires, the controller switches the power control to constant power or to a power course with an altered gradient. Upon fulfilling a specific criterion, there is a switchover from power control to voltage control.

Abstract: A bipolar sealing instrument includes a first actuating mechanism for manual actuation of a tool provided at a distal instrument tip at least in a low-load working force range. A second actuating mechanism includes an electric motor configured to be automatically activated when a high-load working force range is reached, in order to subsequently transfer the tool into a high-load working posture/position in a motor-assisted or fully automatic manner supporting the manual actuation.

Abstract: An HF surgical instrument includes two instrument branches movable toward each other into a closing position. Each branch is equipped with at least one electrode and can be supplied with electric power from a power source. The HF instrument includes a separately configured bridge which is connectable to the power source via at least one electric connection or at least one electric line and includes at least one electrically conductive contact point for supplying the at least one electrode with electric power. The bridge can be introduced to at least one of the two branches so that the at least one contact point is electrically contacted by the at least one electrode. A method of assembling a HF surgical instrument includes equipping two instrument branches with at least one electrode.

Abstract: A method of controlling an electrosurgical HF apparatus, as well as an HF apparatus, includes an electrosurgical instrument and an HF generator for generating an HF current. The HF generator is in a locked state in which its activation is not possible. An application to be carried out is to be selected prior to a user-side activation of the HF generator, whereby the HF generator is unlocked.

Abstract: A medical device includes two device units having two functional units that can be coupled to each other to actuate the second functional unit via the first functional unit. The first functional unit has a mechanical coupling segment which can be brought into a coupling position to couple with the second functional unit. A detector for detecting a relative position of the two device units or a distance between the two device units is provided on at least one device unit. The electrical or electronic control of the first functional unit is configured such that the mechanical coupling segment of the first functional unit can be brought into the coupling position only if the two device units are in a certain position with respect to each other or fall below a minimum distance from each other.

Abstract: In order to provide a temperature sensor or a temperature measuring apparatus having a temperature sensor, which enables direct temperature measurement, in particular even during treatment, in particular even with HF surgical devices, it is proposed that the temperature sensor includes a sensor element with a medium which can be excited to luminescence, in particular fluorescence, and an optical waveguide which is optically connected to the sensor element and is intended to supply light to the medium at an excitation wavelength and/or to pick up and conduct light at a luminescence wavelength of the medium which can be excited to luminescence.

Abstract: A method and device for controlling a treatment procedure includes a treatment tool, an energy source, and a controller. The controller controls the energy source such that in a first treatment phase, power fed into the material to be treated is controlled with an increasing course. An impedance detector determines the impedance course and/or the present impedance of the material to be treated, and recognizes the achievement of an impedance minimum. A timer is started upon recognition of an impedance minimum, and upon recognition of a further impedance minimum within the specific time interval, the timer is reset. If no new impedance minimum is detected within the specific time interval and the time interval expires, the controller switches the power control to constant power or to a power course with an altered gradient. Upon fulfilling a specific criterion, there is a switchover from power control to voltage control.

Abstract: A medical device includes two device units having two functional units that can be coupled to each other to actuate the second functional unit via the first functional unit. The first functional unit has a mechanical coupling segment which can be brought into a coupling position to couple with the second functional unit. A detector for detecting a relative position of the two device units or a distance between the two device units is provided on at least one device unit. The electrical or electronic control of the first functional unit is configured such that the mechanical coupling segment of the first functional unit can be brought into the coupling position only if the two device units are in a certain position with respect to each other or fall below a minimum distance from each other.

Abstract: An HF surgical instrument includes two instrument branches movable toward each other into a closing position. Each branch is equipped with at least one electrode and can be supplied with electric power from a power source. The HF instrument includes a separately configured bridge which is connectable to the power source via at least one electric connection or at least one electric line and includes at least one electrically conductive contact point for supplying the at least one electrode with electric power. The bridge can be introduced to at least one of the two branches so that the at least one contact point is electrically contacted by the at least one electrode. A method of assembling a HF surgical instrument includes equipping two instrument branches with at least one electrode.

Abstract: A method of controlling an electrosurgical HF apparatus, as well as an HF apparatus, includes an electrosurgical instrument and an HF generator for generating an HF current. The HF generator is in a locked state in which its activation is not possible. An application to be carried out is to be selected prior to a user-side activation of the HF generator, whereby the HF generator is unlocked.

Abstract: In order to provide a temperature sensor or a temperature measuring apparatus having a temperature sensor, which enables direct temperature measurement, in particular even during treatment, in particular even with HF surgical devices, it is proposed that the temperature sensor includes a sensor element with a medium which can be excited to luminescence, in particular fluorescence, and an optical waveguide which is optically connected to the sensor element and is intended to supply light to the medium at an excitation wavelength and/or to pick up and conduct light at a luminescence wavelength of the medium which can be excited to luminescence.