Device for fixation of bone


(57) Abstract:

Usage: in traumatology and orthopedics for compression and fixation of bone fragments of small tubular bones. The inventive device includes a threaded rod 1, which has spiegelzaal 9, 10, 11 with spokes 4, 5, 6, the working end of one of which 5 is parallel to the threaded rod 1 and the other 6 is bent so that its section between the mounting end is perpendicular to the longitudinal axis of the threaded rod 1. 1 Il.

The invention relates to medicine, namely to traumatology and orthopedics.

The aim of the invention is the fixation and compression of the bone fragments bones after the hand is open or closed reposition up to the fracture consolidation.

Known compressicauda-fixing apparatus C. I. Kaganovich, consisting of 2 rods, 4 spiegelzaal, which provides targeted compression in the direction perpendicular to the line of fracture. The device is used in fractures of the mandible. However, the device is relatively complex, and fractures of tubular bones is the lack of stability can lead to difficulties in the process of treatment, the P> It is known Device to reposition and fixation of long bones" (ed. St. N 1457911) containing two parallel threaded rod with plates secured them with nuts. Plates have radial slits with spiegelgasse attached by nuts and vested in them, radiating spokes. But the relative complexity of the device and unreliable fixation of bone fragments due to the inability to maintain the critical angle of the spokes in this device, make its application difficult, especially when fixation of small bones. The device allows for long and reliable fixation of small bones (clavicle, forearm, plastname and metacarpal bones) before the onset of coalescence fracture provides an early movement while maintaining a stable fixation of bone fragments. The simplicity of the device, relative cheapness and reliability of fixation of the bone fragments are the main criteria of its use in the practice of emergency traumatology and Orthopaedics fractures of small bones.

The device comprises a threaded rod 1, washer 2 with the slot and the nut 3. To the bone, the device is attached by spokes 4, 5, 6, which, after introduction into fragments 7 and 8 are fixed to mesibov istwo for fixing bones, superimposed on the bone fragments after reposition.

Two washers 2 with slot and two nuts 3 form spiegelzaal 9, 10, 11.

The device is used as follows.

Produce open or closed reposition of bone fragments 7 and 8 with subsequent fixation of their needle 5 inserted through a distal fragments 7. The free end of the spokes 5 are bent at an angle of 90 degrees to the axis of the threaded rod and fixed on him spokes holder 11. Through the proximal fragments 8 and distal fragments 7 in the transverse direction to the axis of the bone are the spokes 4 and 6, the free ends of which are fixed to the threaded rod 1 spiegelgasse 5 and 18. To create compression in the device the nut 3 spiegelzaal 9 and 10 must rotate to zoom in to each other on the threaded rod 1 at a distance of 1.0-1.5 cm, moving spokes 4 and 6, which creates compression. After the suturing of wounds with open reposition of fragments 7 and 8, the operation is completed.

1. Device for fixation of bone containing a support and spiegelzaal attached to them curved spokes, characterized in that the support is executed in the form of a threaded rod that has spiegelzaal, when this is CTV on p. 1, characterized in that at least one of the spokes are bent so that the area between the fixing ends perpendicular to the plane which contains the longitudinal axis of the rod.


Same patents:

The invention relates to medicine, namely to traumatology-orthopedics

FIELD: medical engineering.

SUBSTANCE: device has rod, units for fixing transosseous members and the transosseous members. The rod is composed of two L-shaped plates connected to each other with their long shelves by means of bolts and nuts. The short shelves of each of them are curved in a plane set in perpendicular to the long shelves and have at least single threaded guide. Oval coaxial holes are drilled in the long shelves for setting holders for fastening wires and rods. Unit for fixing transosseous members is designed as curved strips having junction and holes for introducing guide members. The transosseous members are placed between the strips tightened with the nuts mounted on the guides.

EFFECT: enhanced effectiveness in preventing deformities, persistent contractures and carpal instability.

4 cl, 3 dwg

FIELD: medicine, orthopedics, traumatology.

SUBSTANCE: the present innovation deals with applying surgical instruments and ways for treating motor system by introducing fixators into a vertebra. It is necessary to fulfill a roentgenogram of deformed vertebral column in frontal projection, then its contour should be identified with that of a marking pattern which should be matched with the centers of bows' roots. Then one should apply needles-marks upon a pattern in transverse plane by matching them with the centers of bows' roots followed by computer tomography at the pictures of which one should detect the angle for introducing fixators, free ends of needles-marks should be curved by matching with the angle of introducing fixators. In operation room, one should place a marking pattern at a patient's back by matching it with the contour of patient's vertebral column followed by roentgenological control, then it is necessary to introduce fixators into bows' roots taking into account the position of needles-marks. Marking pattern contains two supports made of plastic material. Every support has got through steadily located openings and not less than 2 needles-marks. They are designed to be introduced through the openings. Moreover, free ends of needles-marks are designed to have the chance for curvature. Application of the present method enables to shorten the duration of operative interference and, also, decrease the number of roentgenological trials during interference.

EFFECT: higher accuracy and efficiency of detection.

2 cl, 4 dwg, 1 ex

FIELD: medicine.

SUBSTANCE: invention concerns medical equipment, namely, traumatology and orthopedy. The apparatus contains blocks-clamps, a screw-coupler, and a basis of longitudinal form with a referring groove. Each block fixative is equal in width to the basis and is executed in the form of a slider with a longitudinal prominence and the clamping plate placed on it which are clamped to the formation of apertures under carving blocking hinges on the interfaced sides of the slider and a clamping plate, and an axis of these apertures axes of blocks-clamps are located perpendicularly. The screw-coupler is located along a longitudinal axis of the basis, and executed with an adjusting aperture on a turn-key basis. Blocks-clamps are clamped to the basis. The basis has section of a double tee with a wall parting the basis on the top and bottom cavities and executed with the referring groove. Each fixative block is supplied by a fixing lath. A prominence of the slider and a corresponding fixing lath of blocks-clamps are located one under the other, consequently, in the top and bottom cavities of a double tee of the basis, on the different sides from its wall, and have sections, reciprocal under the form to sections of corresponding cavities of the double tee. There is not less than four apertures for carving blocking hinges. In a clamping plate, a slider and a fixing lath of blocks-clamps there are coaxial fixing apertures located in front of each other which axes are symmetrised, is perpendicular and with alternating concerning axes of apertures for carving blocking hinges. The screw-coupler is located in two eyes and bound to one of eyes carving bond. The eyes are executed with a fixing aperture and established on clamping plates of the next blocks-clamps and clamped to them a bolt passed through a fixing aperture of an eye, through coaxial to it an aperture executed in the corresponding clamping plate, and fixed on a carving in a corresponding aperture a the slider. The blocks-clamps are clamped to the basis the bolt passed through executed in clamping plate and the slider fixing apertures, spent through referring groove of a wall of a two-Tauri, and fixed on a carving in a corresponding coaxial aperture of a fixing lath. The length of the basis and its height are bound by parity 17.5:1. The length of a referring groove is peer to a difference of length of the basis and the doubled distance from edge of blocks-clamps to the point of an aperture nearest to it under a bolt, executed in a clamping plate.

EFFECT: invention provides expansion of functionality, rising of durability of bracing and reliability of osteosynthesis at treatment of difficult fractures, and also at elongation of long tubular bones, and for replacement of defect of bone after its osteotomy, both at the adult person, and at the child.

3 cl; 5 dwg

FIELD: medicine.

SUBSTANCE: invention relates to field of medicine, in particular to orthopedics. Skin and subcutaneous fatty tissue are cut on anterior surface of iliac region. Muscular tissue is immobilised in obtuse and acute way. Periosteum of iliac bone between anterior-upper and anterior-lower spines is exposed, periosteum is cut longitudinally and separated with raspatory. Two tunnels are made in front plane by means of drill. After that threaded rods with diameter 5-6 mm are screwed to the depth 3-4 cm. In lower third of femoral bone two cuts are made with scalpel. Trocar is introduced to bone. Through trocar bush two tunnels are frilled in bone, fixing threaded rods are screwed into tunnels. After that, by means of "МКЦ" apparatus gradual distraction and rotation inwards on femoral bone axis is performed at the rate 1-2 mm per day by rotation of nut on threaded rods in various planes for two-three weeks. Fixation of head and neck of hip is realised by bundle of wires, which are installed along hip neck, crossing growth zone. After that "МКЦ" apparatus is dismantled and plaster bandage is applied until bones knit completely.

EFFECT: method ensures gradual reposition of epiphysis, possibility to compensate vascular net to changing spatial position.

1 ex, 8 dwg

FIELD: medicine.

SUBSTANCE: invention relates to field of medicine, namely to traumatology and orthopedics. Through external bone surface formed is hole, going into intramedullary channel. Through said hole into intramedullary channel fixer is introduced and installed in destroyed part of bone. Liquid is supplied into fixer, ensuring even pressure, performed via external surfaces of fixer onto response contact bone surfaces. Fixation of fixer inside bone is realised due to increase of transverse dimension of working part of fixer in accordance with internal diameter of intramedullary channel and tight contact of external surface of fixer with response contact bone surface. Pressure inside fixer is kept stably high for the period from ten days and longer. After that it is gradually reduced to minimal. After eight months after osteosynthesis fixer is removed.

EFFECT: method ensures reduction of trauma of bone and soft tissues when performing manipulations during operation, reduction of possibility of development of early post-operative complications, elimination of delayed or incorrect union of bone fragments, absence of additional immobilisation in post-operative period, reduction of hospitalisation terms.

3 ex, 3 dwg

Orthopaedic device // 2517605

FIELD: medicine.

SUBSTANCE: invention relates to the field of medical equipment and is intended for application in traumatology and orthopaedics for resetting a dislocated shoulder. An orthopaedic device contains, at least, one post, on which a seat and a back are placed. The upper edge of the back is made with a hollow for axilla of a patient, who sits sideways on the seat with the arm placed over the back. In the upper part a hollow is made in such a way that it partially embraces from the front and from behind the shoulder joint of the patient, who sits sideways on the seat with the arm placed over the back. On the back surface of the back there is, at least one bearing area for placement of the arm of the patient, who sits sideways on the seat with the arm placed over the back. The orthopaedic device contains traction, made with a possibility of connection with the device for the forearm embracing, made in a form of L-shaped sleeve. Traction is made in a form of mechanical traction from a set of detachable loads and a hook, adapted for placing on it demountable loads and made with a possibility of connection with the L-shaped sleeve.

EFFECT: invention makes it possible to increase efficiency of the shoulder dislocation treatment due to improvement of work conditions, convenience of application, reliability of fixation of the patient's position and position of the shoulder by providing optimal stop, which takes into account anatomic characteristics of the shoulder joint and axilla.

13 cl, 8 dwg

Robot arm apparatus // 2541754

FIELD: medicine.

SUBSTANCE: group of inventions refers to medicine. A device for treating bone fractures comprises a number of levers, a number of joint elements, a mechanical device, a controller and a frame. Each of the levers extends from a proximal end to a distal end and is movable in the three-dimensional space. The proximal end of each lever is connected to the frame. Each of the joint elements is connected to the distal end of the respective lever, wherein the joint element encloses and blocks a bone fixation element attached to the respective bone fragment so that each of the levers is connected to the respective bone fragment. The mechanical device makes the lever move for advance each of the levers in relation to the frame. The controller obtains data respective to a desired final position of the bone fragments in relation to each other and controls the mechanical device to advance the levers in relation to each other for achieving the desired final position of the bone fragments in relation to each other. The frame comprises a long element with a number of levers attached thereto. The long element is configured rotatable to rotate a number of levers in relation to the frame. A method of treating the bone fractures involves: attaching a first bone fragment to a first bone fixation element and a second bone element to a second bone fixation element; connecting a distal end of the first lever with the first bone fixation element and a distal end of the second lever with the second bone fixation element; each of the first and second levers extends between the distal end and proximal end connected to the frame; the frame comprises a long element with a number of levers attached thereto; the long element is configured rotatable to rotate the first and second levers in relation to the frame; obtaining the data corresponding to the desired final position of the first and second bone fragments in relation to each other; and controlling the mechanical device to advance the first and second levers in relation to each other to achieve the desired final position of the bone fragments.

EFFECT: inventions enables calculating and controlling the force, direction and rate of the process.

23 cl, 13 dwg

FIELD: medicine.

SUBSTANCE: invention relates to medicine. Set for repositioning and external fixation of fragments of bones of extremities and/or pelvis comprising placed in container at least one fiberglass bar of X-ray transparent material, at least two Schantz pins, at least one retainer and T-shaped switch for manual insertion of Schantz pins during operation and tightening of fixator clamp nut. Schantz pins have on proximal end side cortical thread with helical, self-threading and self-tapping sharpening, from distal end - polyhedral shape and annular groove, made on trihedral profile for fixation of Schantz pin in T-shaped switch to prevent spontaneous fall out of Schantz pin from T-shaped switch during operation. Fixator is made solid and includes at least two clamping units, each of them comprises two clamping jaws - internal and external. Clamping units are connected by axial screw provided with retainer, placed on one side of axial screw, and clamping nut, placed opposite side of axial screw on its threaded part. Spring element is placed between clamping units and provides at extreme “free” position of clamping nut arrangement of clamping units on axial screw at distance from each other with simultaneous pressing clamping of jaws of each clamping unit to each other, at opposite clamping nut position with tight pressing of clamping units and their jaws to each other. Each clamping unit allows simultaneous arrangement between its jaws of one Schantz pin and one bar and turn at axial screw at “free” position of clamping nut. Each clamping unit is provided with shaped supports for fingers of surgeon made on opposite side surfaces of clamping jaws in form of slots and oriented along axial screw to provide convenience of grip of fixture. Groove made on one jaw of one unit has extension to second jaw of this unit to make one lodgement. T-shaped switch has handle with perpendicular located bearing bar. Handle at one end has inner hole for clamping nut of retainer. Bearing rod end is equipped with device for locking Schantz pin, which has internal axial channel of distal end of Schantz pin, and ball mechanism arranged in body for fixation of Schantz pin to interact with annular groove on trihedral profile of Schantz pin.

EFFECT: invention provides reduction of pain syndrome, reducing risk of life-threatening complications, considerably easier transportation.

31 cl, 22 dwg, 1 ex

FIELD: medicine.

SUBSTANCE: modular device for extrafocal osteosynthesis of long bone fractures contains at least two annular base supports and several repositional semirings connected by four threaded rods, parts of the standard set of Ilizarov apparatus. The device has U-shaped staples with a threaded hole in the jumper for the threaded rod and the distance between the legs corresponding to the width of the repositional semirings. The repositional semirings are made separable and consist of an outer and an inner segments. The segments are connected together by U-shaped staples and nuts pre-installed on the threaded rods. The outer and inner segments are made with docking cylindrical surfaces along the middle arc-shaped part of the semiring with semicircular notches formed on them forming the holes during the assembly. The inner segments have holes at the ends for bolts with nuts to join semirings into rings.

EFFECT: increased effectiveness of treatment of patients with long bone fractures, especially under conditions of polytrauma, stronger fixation of fragments of long bones in the repositioning position, rotational and axial stability of fragments of fragile compression, if necessary - mounting or dismantling additional modular semirings and rings without complete dismantling of the apparatus of external fixation by Ilizarov while performing repeated operational aids and bandagings.

9 dwg