Abstract: Heat flow sensor having at least two plates with the heat (thermo) sensitive elements and with holes (openings) for the passage of air flow, so that the tops of both plates with the thermo sensitive elements are placed facing the outer surface of the sensor, so that their openings coincide and the construction provides passage of air through the openings whereby the thermo sensitive elements are located between all the holes of the plates and serially connected on every plate, and then the said sensor (plates) has one common point of connection in the middle of each side so that each sensor has at least three output wires—the total, the output of each plate, and therefore the magnitude and direction of the heat flow, are determined by the difference between the outputs of the two earlier described plates.

Abstract: The invention provides a new system for measuring the heat flow rate between a first and a second medium, the system includes at least two sensor units with signal outputs disposed in a spaced-apart relationship, each of said units including a transducer with apertures allowing fluid to pass through; the transducers are affixed to a first surface on the first medium directly or at least indirectly, and a second surface is exposed to the second medium; thus the said system includes at least two different calibration plates with known coefficient of thermal conductivity and said calibration plates inserted into a measuring line (scheme) of both the sensor units and are affixed behind or in front of the sensor units; the signal outputs of the said transducers arrive to a processing unit for determination and measurement of changes in the heat flow between the said first and the said second sensor units.

Abstract: Heat flow sensor having at least two plates with the heat (thermo) sensitive elements and with holes (openings) for the passage of air flow, so that the tops of both plates with the thermo sensitive elements are placed facing the outer surface of the sensor, so that their openings coincide and the construction provides passage of air through the openings whereby the thermo sensitive elements are located between all the holes of the plates and serially connected on every plate, and then the said sensor (plates) has one common point of connection in the middle of each side so that each sensor has at least three output wires—the total, the output of each plate, and therefore the magnitude and direction of the heat flow, are determined by the difference between the outputs of the two earlier described plates.

Abstract: The invention provides a dental implant, characterized by a cylindrically threaded shaft section with at least a double lead thread. One lead thread is micro carved, while the other lead thread is carved with teeth of any shape, for instance V-shaped, buttress-shaped or square-shaped. The dimension of teeth increases gradually from zero in the lower part of the said implant (with constant or cone diameter) to approximately 0.1-0.2 of the diameter of the micro carving from the upper part of the said body implant. The maximal diameter of the said implant equals approximately 1.2-1.4 of that of the lower part. Thereto the internal body is supplied by a lead thread in order to block the said implant and may further be used for attachment of the key to turn in the said implant.

Abstract: The invention provides an orthodontic facebow of the type, having an inner bow consisting of two inner arms, each including an end portion, and an interconnected outer bow consisting of outer arms, characterized in that the free end portion of each inner arm is self-locking element to realize by means of placing lever in form of segment of a circle or placing lever into split and fixing to inner with help axle and with possibility tuning so as to allow it to be easily inserted facebow in buccal tube and after inserted lever tune and stopping facebow, and then for facilitating removal facebow from buccal tube need to combine said levers with each inner arms.

Abstract: The invention provides a system for determining the heat flow rate between a first and a second medium, the system including at least two sensor units having signal outputs disposed in a spaced-apart relationship, each of the units including a transducer having apertures allowing fluid to pass therethrough; the transducer of a first sensor unit is affixable to a first surface on the first medium, the heat flow of which is to be determined and a second surface of the first transducer is exposed to the second medium; a first surface of the transducer of a second sensor unit is affixable to a calibration plate, the calibration plate is affixable to the first medium, the heat flow of which is to be determined and the second surface of the transducer is exposed to the second medium; the signal outputs of the transducers are connectable to a processing unit for determining changes in the heat flow between the first and the second sensor units.

Abstract: The invention provides a system for determining the heat flow rate between a first and a second medium, the system including at least two sensor units having signal outputs disposed in a spaced-apart relationship, each of the units including a transducer having apertures allowing fluid to pass therethrough; the transducer of a first sensor unit is affixable to a first surface on the first medium, the heat flow of which is to be determined and a second surface of the first transducer is exposed to the second medium; a first surface of the transducer of a second sensor unit is affixable to a calibration plate, the calibration plate is affixable to the first medium, the heat flow of which is to be determined and the second surface of the transducer is exposed to the second medium; the signal outputs of the transducers are connectable to a processing unit for determining changes in the heat flow between the first and the second sensor units.

Abstract: A device and method for monitoring condition of the patient's bladder urine distention level are presented. The device comprises a sensing unit and an indication unit. The sensing unit is attachable to a certain location on the patient's abdominal, and is of a kind transmitting acoustic signals substantially not exceeding 20 kHz to the urine bladder through tissue, receiving signals reflected from the urine bladder, and generating data representative of the condition of the bladder urine distention. A processor is interconnected between the sensing and the indication units. The processor is responsive to the generated data for analyzing the same and selectively generating a signal indicative of the existence of a predetermined condition of the patient's bladder urine distention level.

Abstract: A device for sensing the temperature inside a body cavity having inside walls, includes a tube having, at its proximal end, an electrical wire connector and an air admittance and release mechanism, and, at its distal end, an inflatable annular cuff operationally connected to the mechanism; temperature-sensing means attached to, or integral with, the cuff and electrically connected to the wire connector; the sensing means being located at the region of the largest diameter of the annular cuff when inflated, the inflation of the cuff temporarily affixing the cuff to the inside walls of the body cavity while assuring at least indirect positive contact between the sensing means and the body cavity.