Apparatus for real time measurement of parameters of a state of mechanical stress and biomechanical properties of soft biological tissue

摘要

A device for simultaneously measuring the parameters characterizing the mechanical stress, the elasticity, the dynamic stiffness and the time of mechanical relaxation of soft biological tissue, comprising a body (1), a control means comprising a processor and controller to manage the measuring and calculating parameters (2), a recorder (3), one end (4) test, a movable frame (9) fixed to the end (4) test and a drive end (4) test comprising a solenoid (5), wherein a shutter (8) is inflexibly secured to the center of the frame (9) movable, and the body (1) has sensors (6, 7) positioned to detect the shutter (8) wherein the drive testing end is operable in translatory movement, and said actuator has the same direction as the testing end, the end (4) test can emerge through an opening (19) of the body (1 ) to contact the soft biological tissue, and the device includes a mechanism testing end comprising the frame (9) and mobile elements (10 and 11) resilient to hold the frame (9) mobile body (1), wherein the frame ( 9) Mobile contains a sleeve (14) with magnets (15, 16) permanent oriented with poles of the same name face to face and in the center of the solenoid (5), and wherein a tip (17) cone-shaped electrical steel end (4) test is placed in the drive magnet (16) permanent that is located closer to the end (4) test, so that said tip (17) in a cone shape is fixed autonomously of the frame (9) movable; so that in use can be transmitted a current pulse to the solenoid (5), to exert a biological dynamic transformation on the fabric (30) ending with a quick release, after which the fabric (30) biological undergoes a series of free oscillation damping with the end (4) test, the frame (9) Mobile and recorder (3), from which the processor means (2) control can calculate the parameters that characterize the tissue ( 30) biological; and said device is equipped with an element (18) for communicating signals recorder (3) from the frame (9) movable means (2) control; and the device includes light signals and / or sound, which are placed around the opening (19) for the end (4) test, and the device also comprises a system boots comprising a drive (20), a screw (21) actuating a control (22) slidingly moving on a stationary base (13), wherein the control (22) slide is equipped with a shutter (23) and control (22) sliding means is located (24) to avoid mechanical system unloaders injuries, having stops (25, 26) in the extreme positions of the mobile frame (9) for coupling the control (22) slide when the slider is so positioned, and wherein the device also comprises sensors (27, 28 and 29) for detecting the position control position (22) slide.