초록 ▼

An improved system for cellular surgery which includes a laser for producing a laser beam, and confocal optics for scanning and focusing the laser beam in tissue and generating confocal images of the tissue in accordance with returned light from the tissue. The confocal images are visualized on a di

An improved system for cellular surgery which includes a laser for producing a laser beam, and confocal optics for scanning and focusing the laser beam in tissue and generating confocal images of the tissue in accordance with returned light from the tissue. The confocal images are visualized on a display. The system includes a controller for enabling the operator to select one or more cells of the tissue in the displayed confocal images for surgical treatment. The controller operates the laser and confocal optics in a first mode to treat the tissue when the confocal optics focus the laser beam at least one region associated with the selected cells in the tissue, but at all other times operates the laser and confocal optics in a second mode which does not damage the tissue. The treatment may be localized to concentrate the energy of the laser to the region including the selected cell or cells, or the treatment may be non-localized to distribute the energy of the laser to the region which includes the selected cell(s) and also the cells of the tissue surrounding such selected cell(s). In another embodiment, an apparatus is provided having a confocal imaging system, which focuses a first laser beam through confocal optics to tissue and provides confocal images of the tissue, and a treatment system which focuses a second laser beam through the confocal optics coaxial with the first laser beam for treating at one or more selected locations in the imaged tissue.

대표청구항 ▼

An improved system for cellular surgery which includes a laser for producing a laser beam, and confocal optics for scanning and focusing the laser beam in tissue and generating confocal images of the tissue in accordance with returned light from the tissue. The confocal images are visualized on a di

An improved system for cellular surgery which includes a laser for producing a laser beam, and confocal optics for scanning and focusing the laser beam in tissue and generating confocal images of the tissue in accordance with returned light from the tissue. The confocal images are visualized on a display. The system includes a controller for enabling the operator to select one or more cells of the tissue in the displayed confocal images for surgical treatment. The controller operates the laser and confocal optics in a first mode to treat the tissue when the confocal optics focus the laser beam at least one region associated with the selected cells in the tissue, but at all other times operates the laser and confocal optics in a second mode which does not damage the tissue. The treatment may be localized to concentrate the energy of the laser to the region including the selected cell or cells, or the treatment may be non-localized to distribute the energy of the laser to the region which includes the selected cell(s) and also the cells of the tissue surrounding such selected cell(s). In another embodiment, an apparatus is provided having a confocal imaging system, which focuses a first laser beam through confocal optics to tissue and provides confocal images of the tissue, and a treatment system which focuses a second laser beam through the confocal optics coaxial with the first laser beam for treating at one or more selected locations in the imaged tissue. 1. A method for reducing the effects of drift of a detector of transmitted power and of a transmission power control signal in a transmitter arranged to transmit in an intermittent fashion, the output signal from the detector and the control signal controlling at least in part the transmission power of the transmitter, comprising at least steps of storing of a voltage difference between the output voltage of the detector and the control signal during a pause in transmission, and using said stored voltage difference for compensating the drift of the detector and the control signal during a transmission period. 2. A method according to claim 1, wherein during a transmission pause the voltage difference, between the output voltage of the detector and the control signal is stored, and during the operating state the stored voltage difference is used for compensating the temperature drift of the detector and of the control signal when the control signal for ha control means for generating the output signal is generated. 3. A method according to claim 1, wherein said voltage difference is stored in a capacitor connected between the detector and the differential amplifier by connecting the inputs of the differential amplifier to each other and by connecting the output of the differential amplifier to a constant potential when the control signal is connected to an input of the differential amplifier which is different to that input to which said capacitor is connected. 4. A method according to claim 3, wherein the effect of the variation of the bias voltage of the detector is compensated by connecting the feedback of the differential amplifier to a constant potential and by supplying the sum of the detection's output voltage and the control signal to a second input of the differential amplifier. 5. A method according to claim 1, wherein said voltage difference is stored in a capacitor connected between the control signal line and the differential amplifier by short-circuiting the inputs of the differential amplifier to each other and by connecting the output of the differential amplifier to a constant potential when the output of the detector is connected to an input of the differential amplifier which is different to that input to which said capacitor is connected. 6. A method according to claim 1, wherein the voltage difference caused by the drift of the differential amplifier is stored during a transmission pause, and that the stored voltage difference is used for compensating the temperature drift of the differential amplifier when the control signal is generated. 7. A method according to claim 6, wherein said voltage difference is stored in a capacitor connected between the detector and the differential amplifier by connecting the input of the differential amplifier and the capacitor to the output of the differential amplifier, when the power control signal is connected to an input of the differential amplifier which is different to that input to which said capacitor is connected. 8. System for compensating drifts in a transmitter arranged to transmit in an intermittent fashion, the transmitter having at least a detector of transmitted power and a control signal line for controlling the transmitted power, comprising at least means for storing the voltage difference between the output voltage of the detector and the control voltage in the control signal line during a pause in transmission, and means for compensating the drift of the detector and the control signal during a transmission period using a stored voltage difference stored by said means for storing. 9. A system according to claim 8, further comprising a compensation and control block for compensating the temperature drift of the detector and of the control signal. 10. A system according to claim 8, further comprising a series impedance for connecting the voltage of the detector to a connection point in the compensation and control block, a feedback impedan