SU1648378A1 - Device for functional x-ray imagine - Google Patents

Abstract

The invention relates to medical technology. The purpose of the invention is to expand the scope. The device contains a splint 17 of the knee joint, a sector 7 with an angular scale, equipped with a stop plate 11 and a hinge connected to the base 1 with the possibility of fixing with a clamping nut 9. The guide rods 2 attached to the base, interacting with the platform 3, which is connected to the base 1, are screwed 4 with a dynamometer 5. To the free ends of the rods 2 there is attached a lamb 12 with a pelvic bone 14 and a shoulder girdle 13, equipped with a protractor 15. The device provides a radiography of the hip joint when axial pressure is applied to izhney limbs at an angle to the longitudinal axis of the body. hpfly, 8 ill.

Description

Fig1,

The invention relates to medical technology and is intended for functional radiography of the hip joints.

The purpose of the invention is to expand the field of application by ensuring the application of axial pressure to the lower limb at an angle to the longitudinal axis of the body.

FIG. 1 shows the device in cooperation with the patient, the front view of FIG. 2, the same, side view; Fig. 3 shows an embodiment of the loading unit, front view; figure 4 is the same, top view; figure 5 - section A - A in fig.Z; Fig. 6 illustrates another embodiment of the loading unit, characterized by the number and arrangement of the guide rods; 7 - the same, rear view; on Fig - the same, top view.

The device for functional X-ray diffraction contains a base 1 in the form of a plate, with which the guide rods 2 are made, which are installed perpendicularly and interact with the platform 3 parallel to the base 1. The platform 3 and the base 1 are connected by a stop screw 4 with a dynamometer 5 and a handle 6 on the opposite end. Coaxially with the screw 4, the sector 7 is mounted on the tide 8 of the base 1 and secured with a nut 9. The sector 7 is provided with an angular scale 10 and a stop plate 11 at the opposite end. A lamka 12 is attached to the free ends of the rods 2; it is adjustable in length and provided with a shoulder pad 13 and a pelvic pole 14, which is adjustable for length and position relative to the lintel 12. To lm 12 in the area of its connection with the pelvic pole 14, a protractor 15 is attached with the ability to move along the strip.

In the embodiment, the shape of the base 1 and the pad 3, as well as the number and location of the rods 2 and the attachment to them of the lamina 12, can be different. The variant with two diametrically opposite rods is suitable for children of small age (Figures 1-5) v with concomitant deformities of the foot, a variant with three rods and a podstopnik 16 on the platform 3 - for older children (10-14 years), adolescents and adults with a normal foot.

The device also includes a lock of the knee joint (splint) 17, which is not connected directly to the other parts of the device and is intended to ensure the immobility of the 8th knee joint.

Use the device as follows.

In the initial state, unscrewing the screw 4, the base 1 and the

site 3. The patient is placed on the X-ray machine table and his knee joint is fixed with a splint 17. Through the shoulder above the limb to be examined, a patient is transferred 12 seconds

cushion 13. The pelvic at 14 is positioned at the level of the wings of the iliac bones and tightened, covering the torso at this level. The length of the lmka 12 is adjusted so that the platform 3 comes into contact with the foot.

patient Preparation for the study ends there.

Unscrew the nut 9 and, focusing on the angular scale 10, establish the required rotation of the limb

with respect to sector 7, which is located by the anvil plate 11 on the surface of the radiographic table, after which the mutual position of the base 1 and sector 7 is fixed, tighten the nut 9. Limb

set parallel to the longitudinal axis of the trunk, focusing on the readings of the protractor 15, and in this position the first (control) radiograph of the hip joint is performed. Then bring

the limb at an angle of 65 - 70 °, open inwardly, also being guided by the readings of the protractor 15, and rotating the screw 4, under the control of the readings of the dynamometer 5, create pressure on the limb along its axis equal to

20 - 50% of previously measured body weight. In this position, a second radiograph is performed (and, if necessary, somewhat with stepwise increasing pressure on the limb). Remove the device from the patient in reverse order.

Thus, the pressure on the femoral head at an angle to the longitudinal

the torso axis is created by placing the lemke 12 against the shoulder girdle and additional pelvic rest 14 in the wing of the ilium. It is possible to perform radiographs at other positions of the limb, namely during its abduction in combination with rotation. In this case, it is possible to use any x-ray table, since the device is in no way associated with it and is strengthened exclusively on the patient. It is possible to expand the field of application of the proposed device when using two load nodes with two lams connected by a single pelvic bone, providing X-rays of two joints at once, for example, if necessary, arthrography,

which reduces the time of the effect of total anesthesia by half.

Claims (2)

Claim 1. An X-ray functional device comprising a knee joint latch and a sector with an angular scale, characterized in that, in order to expand the field of application by ensuring the application of axial pressure to the lower limb at an angle to the longitudinal axis of the body, it additionally Holds the base with guide rods that interact with the platform and are connected at free ends with a tray equipped with a pelvic catfish; 2. Device pop. 1, characterized in that the lamb is provided with a goniometer connected by a center of rotation with a pelvic bone. hh Fieg 15 GU-6 ftsg.Z eleven FIG 5 (rig 6 7 (rig 7