SPINAL MOBILITY MEASUREMENT DEVICE
APPLICATION
The instrument is used to measure spinal mobility in all three planes: sagittal (flexion and hyperextension), frontal (lateral tilt) and transverse (left and right twist). The instrument ensures the relevance, accuracy and reliability of spinal mobility measurements under pelvic stabilization. The results are expressed in angular values in a given plane.
TECHNICAL CHARACTERISTICS
The components of the instrument for measuring spinal mobility (patent 105042) are the base (1), fixed column (2) and movable column (3), protractors for prone (7) and twist (6), as well as the hip rest and pelvic stabilizing straps (5). A lifting mechanism with a crank (4) makes it possible to adjust the height of the hip rest. The hip backrest (5) is formed by a guide, right and left backrests and a stud (18) for adjusting their width. On one end of the guide is attached the yoke of the screw, while on the other end are straps for stabilizing the pelvis. An angle gauge for measuring spinal mobility in the sagittal and frontal planes (7) is formed by a 360° protractor disc with a housing and a pointer that aligns vertically according to gravity. Attached to the housing is a ball joint with a nose screw (21) that locks the protractor in any position, as well as skids (22) for positioning the protractor on the spine.
The torsion angle gauge (6) consists of a rotating dial, a nut-stabilized pointer and two extendable stops. The dial of this protractor is mounted pivotally on a shaft together with a plate (10) used to fuse the entire instrumentation to the shoulders. In the lower part of the fixed shaft there is a pressure circle with a knob (11), which is used to stabilize the plate with the protractor at the height of the shoulders of the person under examination. To anastomose the plate with the shoulders there are straps (14) running through the horizontal openings of this plate.
A transport handle (13) and running wheels (16) are used to move the instrument.
RULES FOR TAKING MEASUREMENTS
To take measurements, the test person is placed on the base of the instrument (1) with his back to the column (2), heels resting on the stop (8). Then, using the lifting mechanism (4), the hip rest is set to the height of the test person's pelvis (anterior upper hip spines), and the other mechanism adjusts the spacing of the backrest. The hips are stabilized in the backrest with belts. To measure spinal mobility in the sagittal and frontal planes, a gravity protractor (7) with skids and a handle is used, which is set at an appropriate height according to the place of measurement. Most often, the total range of spinal mobility is measured, in which case the gravity protractor with skids is located at the height of the seventh cervical vertebra (C7). Measuring the backward mobility of the spine, the lower limbs should be firmly attached to the vertical column of the instrument at the level of the knees (stabilization of the knee joints) with a horizontal strap (for example, with Velcro). When performing inclination in the frontal plane, it is necessary to enforce that the foot of the test person on the opposite side of the inclination is attached to the ground. To measure spinal mobility in the transverse (horizontal) plane, a vertical shaft should be screwed into the socket of the moving column, along which the plate (10) is moved upwards. The plate is attached to the shoulders of the subject with straps (14), which at the front on the chest should be connected with an additional horizontal strap (e.g., Velcro), so that they do not slide off the shoulders (stabilization). With the knob of the pressure screw, the position of the plate at shoulder height is stabilized. Attached to the plate is a horizontal protractor for turning with stops that move with the pointer pointing backwards and determine the ranges of turning (left, right).
ADVANTAGES OF THE INSTRUMENT, COPYRIGHT AND TERMS OF PURCHASE
The instrument ensures relevance, accuracy and reliability of spinal mobility measurements in all three planes under pelvic stabilization. Caster wheels and a transport handle ensure easy movement of the instrument. Ease of operation and control during use is ensured.
The creators of the device are Jan Slezynski and Kazimierz Kubica.
The manufacturer provides customers with delivery of a complete instrument and spare parts. Delivery date up to two months from the date of placing an order or signing a contract.