Abstract: An electrosurgical instrument, in particular for argon plasma coagulation, includes a handpiece 10, an electrode (11) connected to the handpiece (10), a shaft (12) which surrounds the electrode (11) and is held in the handpiece (10), and an operating mechanism (13), which comprises at least one rotary knob (14) arranged on the handpiece (10). The shaft (12) is axially movable relative to the electrode (11) and a shear force can be applied to it by operating the rotary knob (14). The handpiece (10) has a brake device which exerts a braking force on the shaft (12), and the operating mechanism (13) forms a transmission gear (15) which is connected to the shaft (12) for transferring the shear force.

Abstract: According to the invention, there is provided a probe applicator (10) disposed for receiving flexible probes (11) that are intended for endoscopic use and can be made accessible with the probe applicator for laparoscopic use. The control of the device supplying the probes (11) occurs via control elements (32, 33) of the probe applicator (10). Preferably, the probe (11) is supplied via a connecting device (38) provided on the probe applicator (10).

Abstract: The invention relates to an electrosurgical instrument, especially for argon plasma coagulation, with a handle (10), an outer shaft (12) that surrounds an electrode and/or an inner shaft (11, 111) and is held in the handle (10), and an actuation mechanism (13) on the handle (10) to move the outer shaft (12) in the axial direction relative to the electrode/to the inner shaft (11, 111). The invention is characterized in that the inner shaft and/or the electrode (11, 111) are mechanically connected with one another in a distal end area (65) of the outer shaft (12) in such a way that the inner shaft and/or the electrode (11, 111) can be bent by moving the outer shaft (12) relative to the inner shaft and/or to the electrode (11, 111).

Abstract: According to the invention, there is provided a probe applicator (10) disposed for receiving flexible probes (11) that are intended for endoscopic use and can be made accessible with the probe applicator for laparoscopic use. The control of the device supplying the probes (11) occurs via control elements (32, 33) of the probe applicator (10). Preferably, the probe (11) is supplied via a connecting device (38) provided on the probe applicator (10).

Abstract: An electrosurgical instrument, in particular for argon plasma coagulation, includes a handpiece 10, an electrode (11) connected to the handpiece (10), a shaft (12) which surrounds the electrode (11) and is held in the handpiece (10), and an operating mechanism (13), which comprises at least one rotary knob (14) arranged on the handpiece (10). The shaft (12) is axially movable relative to the electrode (11) and a shear force can be applied to it by operating the rotary knob (14). The handpiece (10) has a brake device which exerts a braking force on the shaft (12), and the operating mechanism (13) forms a transmission gear (15) which is connected to the shaft (12) for transferring the shear force.

Abstract: An electrosurgical instrument, in particular for argon plasma coagulation, includes a handpiece 10, an electrode (11) connected to the handpiece (10), a shaft (12) which surrounds the electrode (11) and is held in the handpiece (10), and an operating mechanism (13), which comprises at least one rotary knob (14) arranged on the handpiece (10). The shaft (12) is axially movable relative to the electrode (11) and a shear force can be applied to it by operating the rotary knob (14). The handpiece (10) has a brake device which exerts a braking force on the shaft (12), and the operating mechanism (13) forms a transmission gear (15) which is connected to the shaft (12) for transferring the shear force.

Abstract: The invention relates to an electrosurgical instrument, especially for argon plasma coagulation, with a handle (10), an outer shaft (12) that surrounds an electrode and/or an inner shaft (11, 111) and is held in the handle (10), and an actuation mechanism (13) on the handle (10) to move the outer shaft (12) in the axial direction relative to the electrode/to the inner shaft (11, 111). The invention is characterized in that the inner shaft and/or the electrode (11, 111) are mechanically connected with one another in a distal end area (65) of the outer shaft (12) in such a way that the inner shaft and/or the electrode (11, 111) can be bent by moving the outer shaft (12) relative to the inner shaft and/or to the electrode (11, 111).

Abstract: An electrosurgical instrument, in particular for argon plasma coagulation, includes a handpiece 10, an electrode (11) connected to the handpiece (10), a shaft (12) which surrounds the electrode (11) and is held in the handpiece (10), and an operating mechanism (13), which comprises at least one rotary knob (14) arranged on the handpiece (10). The shaft (12) is axially movable relative to the electrode (11) and a shear force can be applied to it by operating the rotary knob (14). The handpiece (10) has a brake device which exerts a braking force on the shaft (12), and the operating mechanism (13) forms a transmission gear (15) which is connected to the shaft (12) for transferring the shear force.

Abstract: A test simulator for image evaluation of x-ray systems has a flexible test phantom connected by a single connection tube with a single pump that fills and empties the test phantom with a medium. The test phantom thus contracts (as in a real heartbeat) for simulation of systole and subsequently expands for simulation of diastole. Due to the use of only one connection tube and only one pump for control, a simply designed test simulator is obtained since the pump both fills and empties the test phantom.

Abstract: A test simulator for image evaluation of x-ray systems has a flexible test phantom connected by a single connection tube with a single pump that fills and empties the test phantom with a medium. The test phantom thus contracts (as in a real heartbeat) for simulation of systole and subsequently expands for simulation of diastole. Due to the use of only one connection tube and only one pump for control, a simply designed test simulator is obtained since the pump both fills and empties the test phantom.