Abstract:
Apparatus for the determination of ethanol content in liquid or aeriform substances, said apparatus comprising a sensing element (10) comprising an optical resonant microcavity comprising layers (11, 11a, 11b, 12, 13) of porous material suitable for receiving and releasing in its pores vapors of said liquid or aeriform substances (24) . According to the invention, one or more of said layers (11, 11a, 11b, 12, 13) of porous material include porous silicon oxide.
Abstract:
A dialysis machine (1) comprising dialysis equipment (4), a control unit (2) controlling normal operation of the machine and a safety unit (3) for monitoring the machine with a view to the problem of patient safety. The control unit controls actuators (6) and receives information from its own sensors (13). The safety unit is connected to the control unit and receives from it parameters relevant to safety which have been measured by the sensors (13) of the control unit and its own sensors (15) to receive values of the said parameters and other parameters. If any abnormality is found in the parameters measured, the safety unit sends commands (SSR) relating to safe states which have to be established to the control unit (2) which controls the actuators (6) in a corresponding way. The condition of the actuators is monitored by the safety unit (3) which uses suitable sensors (17) to determine whether the actuators have carried out the required actions, and if not, switches off the machine with its own actuators (8).
Abstract:
A haptic device (100) configured to be used as man-machine interface for interactions in virtual and/or real places, tele-operation and rehabilitation assisted by robot comprises a mobile unit (1) configured to be interfaced with at least one user (3), a control unit (4) associated with the mobile unit (1) and a feeding unit (10). In particular, the mobile unit (1) comprises at least three wheels (13) rotationally spaced from each other; each wheels (13) comprises a rotation axis (13') and has a wheel motor unit (11) independent, such that each wheel motor unit (11) allows the rotation of each wheel (13) about the respective rotation axis (13') in a rotation plane orthogonal to the rotation axis (13'). In addition, each wheel (13) has sliding means (21) in a direction transversal to the rotation support plane, such that the mobile unit (1) can follow any trajectory. In particular, the sliding means comprises a plurality of rollers (21) arranged adjacent to each other on a same row. This way, each wheel (13) can carry out a "leeway motion" transversally to each wheel rotation plane by the resulting rolling applied by the respective motor units (11) to the other wheels (13). In particular, in case of three wheels (13) of the mobile unit (1), if a first wheel it has not momentarily a rolling movement, giving to the other two wheels (13) an identical rolling speed, is obtained a translating the first wheel orthogonally to each wheel rotation plane i.e. parallel to its own rotation axis (13'). Giving instead different speeds to the other two wheels (13), it is possible to obtain a movement in a direction oblique with respect to the rotation plane of the first wheel.
Abstract:
A process of immobilizing biomolecules on a support of porous silicon locally activated by using an electronic beam, activated support6s of porous silicon produced in this way, and their use for sensorics applications in biological, medical fields.
Abstract:
A method and apparatus for carrying out highly efficient exothermal reaction between nickel and hydrogen atoms in a tube, preferably, though not necessary, a metal tube filled by a nickel powder and heated to a high temperature, preferably, though not necessary, from 150 to 5000C are herein disclosed. In the inventive apparatus, hydrogen is injected into the metal tube containing a highly pressurized nickel powder having a pressure, preferably though not necessarily, from 2 to 20 bars.
Abstract:
A medical apparatus (100) for extracorporeal blood treatment comprises a support structure (101) housing a hydraulic circuit (1) located above a liquid collection zone (103) such that liquid losses from the hydraulic circuit can at least partially accumulate at the liquid collection zone. A liquid sensor (108) detects presence of any liquid in the liquid collection zone and operates in a distanced position with respect to the liquid collection zone (103).
Abstract:
The present invention relates to a keyboard with a plurality of sensitive key elements (10, 12, 14) arranged on said keyboard according to a predetermined scheme. Each of the key elements (10, 12, 14) provides an analogue electric signal (Ul, U2, U3). The analogous electric signal (Ul, U2, U3) depends on the position of a fingertip. A contact surface of the key element (12) is subdivided into zones (A, B, C, D). The zones (A, B, C, D) are defined in such a way, that the zones (A, B, C, D) have different distances from the adjacent key elements (10, 14). Each zone (A, B, C, D) corresponds with a range of relationships between the signal (U2) of the key element (12) and the signal (Ul, U3) of at least one adjacent key element (10, 14).
Abstract:
An apparatus for online preparation of a medical liquid comprises a main preparation line (26) having three injection points (37, 29, 44) of three concentrates. An injection line (27) of a concentrate comprises a source (28) of concentrate, a dilution point (33) which water flows into, a first injection pump (34) commanded by means of a signal supplied by a conductivity sensor (30) located between the point of dilution and the injection point, and a second injection pump (35) commanded to operate at a constant velocity. The apparatus is for preparing a dialysis liquid and/or a replacement liquid in a machine for hemodiafiltration. The apparatus gives a precise dosage of the concentrate.