SU1648422A1 - Device for pulling wires through - Google Patents

Description

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(21) 4638764/14 (22) 1801.89

(46) 05/15/91. Bul M 18 (71) Kazansky branch of the All-Union Kurgan Scientific Center Restorative Traumatology and Orthopedics (72) I.F., Akht mov and A.P., Skvortsov (53) 615.472 (088.8)

(56) USSR Author's Certificate No. 302112, cl. A 61 B 17/58, 1971.

(54) DEVICE FOR HOLDING SPICE

(57) The invention relates to medicine and permits a bundle of mutually oriented spokes. The purpose of the invention is to reduce the load on the joint. . At the ends of the frame there are spring-loaded lugs 1 and an overlap plate 8. 1 silt

The invention relates to medical technology, namely to orthopedic devices, and can be applied in the correction of the proximal femur on the Ilizarov apparatus,

The aim of the invention is to reduce the radiation load on the joint.

The drawing shows the device when holding the spokes in the region of the proximal femur, a General view.

The device for holding spokes contains spring-loaded ulors 1, frame 2, linear millimeter scales 3, guides 4 spokes, movable sleeves 5 with angle measuring nodes 10, axis b, patch plate 8 with teeth 9, arrows 11 on axis b, side racks 12 frames 2, The drawing shows the spokes 7, introduced into the proximal femur.

The device is applied as follows.

In the preoperative period, the radiographs determine the size of the cervical-diaphyseal angle. This value is set at the angle measurement nodes 10.

The tracks 11. At the same time, they direct the spruce 4, fixed on the axis 6 in the same plane with the arrow 11, to occupy the working position. On the anteroposterior radiograph of the hip joint, the axis of the femoral neck is carried out. The spokes holding device imposes a side surface on the outer-side contour of the thigh so that the overlay plate 8 is at the level of the tip of the greater trochanter, and the stops 1 overlap the contour of the diaphysis of the thigh. Axis 6 is moved using clutches 5 with nodes measuring angles 10 relative to side posts 12 of frame 2. When the direction of arrows 11 coincides with the axis of the femoral neck, the movement of axis 6 along the side posts 12 is stopped. Note the indications on the linear scales 3 along the upper edge of the sleeves 5. The indices of the cervical-diaphysical angle and the values on the scales 3 are the main indicators for the operation of the device during the operation. Radiographs determine the depth required for the introduction of the spokes into the proximal femur.

After a skin incision on the external-lateral surface, the subversive and supracorticular area of the femur is exposed. Strictly on the external lateral surface of the femur impose a device for holding the spokes. The cover plate 8 is placed on top of a large skewer. The teeth 9 are inserted into the bone tissue. Simultaneously stops 1 fix the diaphysis of the thigh, covering it. The device is firmly fixed in the working position. On a linear scale 3 set the upper edge of the clutch 5 on the division set before the operation on the radiograph. Arrows 11 are mounted on nodes measuring angles 10 relative to the size of the cervical-diaphyseal angle.

The spokes 7 are alternately inserted along the guides 4 into the proximal femur using an electric drill. The guides 4 are fixed on the axis 6 at a distance of no more than 20 mm, i.e. the minimum cross-sectional size of the thigh at this level in a possibly operated child. The needles 7 after the introduction, if necessary, can intersect only on the distance of 10 cm from the device. This is determined by the installation — the fixation of the nominators in a predetermined position. And the need for this arises

AT

due to the scattered output of the spokes and the possibility of tissue trauma (the length of the femoral neck does not exceed 10 cm).

After the needles 7 are inserted, the device is removed and, if necessary, corrective osteotomy of the hip is performed. The wound is sutured and an Ilizarov apparatus is applied for the purpose of subsequent correction of the proximal femur. The spokes 7 are secured in the spokes.

Claims (1)

Invention Formula A device for conducting spokes, a base, fixing elements, a node for measuring angles and guides, characterized in that, in order to reduce the radiation load on the joint, the base is made of & a frame with linear scales, at one end of which there is a plate with teeth, and at the other end spring hinges are mounted on the hinge, while on the side racks of the frame there is an axially movable axle on the side racks of the frame with arrows , and guides are oriented in radially converging directions.