Abstract: An adjustable massage apparatus, whose massage effect is based on the suction effect created in association with the treatment head, the treatment head of the apparatus including a surface which comes in contact with the skin, a frame, and in connection with this surface a low-pressure chamber and a low-pressure hose in connection with the low-pressure chamber for created low-pressure suction in order to lift the skin tissue. The apparatus is mainly characterized in that a valve is arranged in connection with the low-pressure hose for adjusting the low-pressure suction created in the low-pressure chamber so that the pressure in the low-pressure chamber is oscillating between an upper limit and a lower limit.

Abstract: The method facilitates measuring of a tissue pressure non-invasively utilizing a negative pressure. The device has a pressure chamber, pressure sensor for measuring the pressure in the pressure chamber and a range sensor for measuring the skin tissue rising caused by the negative pressure.

Abstract: An adjustable massage apparatus, whose massage effect is based on the suction effect created in association with the treatment head, the treatment head of the apparatus including a surface which comes in contact with the skin, a frame, and in connection with this surface a low-pressure chamber and a low-pressure hose in connection with the low-pressure chamber for created low-pressure suction in order to lift the skin tissue. The apparatus is mainly characterized in that a valve is arranged in connection with the low-pressure hose for adjusting the low-pressure suction created in the low-pressure chamber so that the pressure in the low-pressure chamber is oscillating between an upper limit and a lower limit.

Abstract: The method facilitates measuring of a tissue pressure non-invasively utilizing a negative pressure. The device has a pressure chamber, pressure sensor for measuring the pressure in the pressure chamber and a range sensor for measuring the skin tissue rising caused by the negative pressure.

Abstract: The invention relates to an arrangement in connection with a massaging apparatus, and a massaging apparatus. The massaging apparatus includes a treatment head (2), a low-pressure chamber (6) arranged at the treatment head, element (5) for producing low pressure in the low-pressure chamber, and a nozzle part (3), one end of which is arranged to be in connection with the low-pressure chamber and the other end of which is arranged to be pressed against a skin tissue to direct low-pressure suction to the skin tissue, thus producing a bulge in the skin tissue. The nozzle part (3) is arranged to form a suction opening with two main axes, which are substantially perpendicular to one another and are of the same or a different length.

Abstract: The invention relates to pulsed oximeters used to measure blood oxygenation. The current trend towards mobile oximeters has brought the problem of how to minimize power consumption without compromising on the performance of the device. To tackle this problem, the present invention provides a method for controlling optical power in a pulse oximeter. The signal-to-noise ratio of the received baseband signal is monitored, and the duty cycle of the driving pulses is controlled in dependence on the monitored signal-to-noise ratio, preferably so that the optical power is minimized within the confines of a predetermined lower threshold set for the signal-to-noise ratio. In this way the optical power is made dependent on the perfusion level of the subject, whereby the power can be controlled to a level which does not exceed that needed for the subject.

Abstract: The invention relates to pulsed oximeters used to measure blood oxygenation. The current trend towards mobile oximeters has brought the problem of how to minimize power consumption without compromising on the performance of the device. To tackle this problem, the present invention provides a method for controlling optical power in a pulse oximeter. The signal-to-noise ratio of the received baseband signal is monitored,and the duty cycle of the driving pulses is controlled in dependence on the monitored signal-to-noise ratio, preferably so that the optical power is minimized within the confines of a predetermined lower threshold set for the signal-to-noise ratio. In this way the optical power is made dependent on the perfusion level of the subject, whereby the power can be controlled to a level which does not exceed that needed for the subject.