CS209373B1 - Telescopic reinforcement, external skeletal fixation - Google Patents

Abstract

The subject of the invention is a telescopic brace for external skeletal fixation usable in surgery, for connecting and securing external skeletal fixation, intended for use in the treatment of open infected fractures and post-joints in the area of long bones (femur and tibia), or in the area of the pelvis, including their distraction. The telescopic brace according to the invention consists of a fixed rod, at one end of which a surface is formed for fastening clamping plates with guide grooves by means of a screw with a nut and the other end is adapted for sliding movement in a guide tube, at one end of which a surface is formed for fastening clamping plates with guide grooves by means of a screw with a nut and at the other end there is a movable slider with a fixing screw and a nut. The subject telescopic brace is usable in conjunction with other elements for creating a rigid skeletal fixation in bone surgery.

Description

The subject of the invention is a telescopic reinforcement of external skeletal fixation usable in surgery, for joining and securing external skeletal fixation, intended for use in the treatment of open infected fractures and joints in the area of long bones (femur and tibia), resp. also in the pelvis, including their distraction.

The telescopic stiffener according to the invention consists of a guide rod, at one end of which a clamping plate mounting surface with guide grooves is provided by a screw with a nut, and the other end is provided with sliding movement in a guide tube, at one end of which a clamping plate mounting surface with guide grooves by means of a screw with a nut and at the other end there is a movable slider with a fixing screw and a nut.

The present telescopic stiffener is useful in conjunction with other elements to create rigid skeletal fixation in bone surgery.

The object of the invention is a telescopic reinforcement of external skeletal fixation, which is the connecting and securing element of this fixation, intended for use in the treatment of open infected fractures and joints in the area of long bones, ie femur femur and tibia. even in the pelvis, including their distraction.

So far, mainly gypsum external fixation has been used for these procedures, which does not offer a good possibility of treatment of open infected fractures and joints and it is not possible to shorten and lengthen the bones. In other cases, Judet's rigid ruler plate is used with fixed pitch holes that greatly restrict the choice of sites for introducing surgical aids - screws or nails - due to the nature of the bone fracture. Other disadvantages are the possibility of compressing only the elasticity of the established surgical aids wrapped in a rubber bandage and the necessity of using special drill sleeves or templates for drilling holes in the plate and bone. Another known fixation element is telescopic fixators with fixed pitch apertures, which also limit the choice of location of insertion of surgical aids for different bone fracture patterns. The use of other known frame fixations is also contingent upon the use of drill sleeves or templates to accurately drill holes in the plate and bone. These fixations have the additional disadvantage that the displacement of the runners along the threaded rod unevenly distributes the compression of the bone portions and, moreover, a special aiming device has to be used for drilling the holes. As a common shortcoming of fixation used so far

Claims (2)

SUBJECT A telescopic outer skeletal fixture consisting of a guide rod, one end of which is provided with a surface for fastening the clamping plates with guide grooves by means of a screw with a nut and the other end is adapted to slide in the guide tube, the impossibility to use them in skeletal fixations for single- and multi-plane superstable fixation. The above-mentioned disadvantages of the previously known fixation methods are completely eliminated by the multipurpose fixation, which comprises the telescopic reinforcement of the external skeletal fixation according to the invention, characterized in that at one end of the bar guides a surface for fastening the clamping plates with guide grooves is at the other end is a movable slider with a fastening bolt and nut. An advantage of the telescopic stiffener according to the invention is that it allows to increase the stiffness of the femoral skeletal fixation during prolongation. An exemplary arrangement of a telescopic stiffener according to the invention is shown in the accompanying drawing, in FIG. 1 in plan view and in FIG. 2 in a side sectional view. The guide rod 5 slides slidingly in the guide tube 1. At one end of the guide rod 5, there is provided a mounting surface for clamping plates 6,8 having internal guide grooves. They are fixed to the guide rod 5 by means of a screw 2 and a nut 4. The other end of the guide rod 5 is inserted into the guide tube 1. This guide tube 1 has a surface for fixing clamping plates 6, 8 with internal guide grooves at one end thereof. its end is a movable slider 3 with a fastening element 7 and a nut 4. The telescopic stiffeners of the invention can be advantageously used in external skeletal fixation assemblies. BACKGROUND OF THE INVENTION a rod (5) is provided for mounting the clamping plates (6, 8) with guide grooves by a screw (2) with a nut (4) and at the other end with a movable slider (3) with a fastening screw (7) and a nut (4) ).