The outer locking device

 

(57) Abstract:

Usage: in traumatology and orthopedics for the treatment of fractures and bone disease. The essence of the invention. The device comprises a frame 1 of at least one tubular element 2 with the lugs at the ends and at least one adapter 4 connecting tubular elements. In addition, the device comprises external terminals 5 with clamps mounted on the tubular elements. The adapter 4 is made in the form of nuts with opposite threads on the ends and tips in the form of glasses with a thread corresponding direction. In the nut 4 has ventilation holes and openings, forming a viewing window. The frame of the device can be bent in the form of a loop and fixed U-shaped (or T-shaped) piece or composed of polaron, United ties with filling holes. For fastening various types perosseous elements there are several designs of clamps. The tubular element 2 may be made spiral, optically transparent, filled with fiberglass in the form of a tube or folded Mat. The tubular element can be filled with fiberglass in the form of tubes of the same or different tolsti made spiral, optically clear reinforced with fiberglass or fiberglass synthetic material. To control the filling of the tubular element 2 cured material, the latter can be made dyed. 2 S. and 11 C. p. F.-ly, 18 ill.

The invention relates to traumatology and orthopedics for the treatment of fractures and bone disease.

Widely known external fixation device, intended for orthopedic fixation and to hold together the bone fragments. Through external locking device broken bones are fixed in their mutual position so that the healing could occur in the correct position. To do this, in bone or inserted through a bone bone nails, preferably with a thread (e.g., screws Trench or arched rods), and are interconnected at their projecting from the body ends, at least one element in the form of a rod, such as a sliding or guiding rod. This connection is clamping elements made in the form locking elements, hinges and, if necessary, in the form of ball joints, couplings or Barashkova items or so on, Thus, can be formed frame konstruksiyali device and the clamp rods such frame construction is relatively unstable, shaky and movable in and of itself, as mutual be holding the rods have to ease into the clamping elements to set them in correct position. So, placing the locking device cannot be done by one person, and requires other assistants who have to keep the hinges and frame. To facilitate this work, can be used a special clamping device. Since steel has a very high coefficients of elasticity and smooth surface, it is impossible by tightening the clamping screw to achieve only a weak clamp. Because of the high coefficients of elasticity even a slight rotation of the adjusting screw causes a very large change in the clamping pressure. Therefore, when fitting the locking device rods, bone nails and screws can only loose in the clamping elements. Added to this is also that used for the fixing device elements change radiographs. In addition, the cost of manufacturing such fixing devices is very high.

Predominant is the use of a metallic element which forms the locking device depending on the individual requirements of the surgeon. To the ski materials.

A device for immobilization and/or fixing the limbs of humans and animals having pairs of opposite connecting parts, receiving at least one bone screw or one bone nail, which are connected to threaded clamping elements with connecting rods. During this fitting, clamping elements and connecting rods, as well as the unified coupling castles made of reinforced fibers of thermoplastic synthetic materials.

Known orthopedic device for fixation of fractures containing at least one above the limb of the patient tubular element, connected via a bone pins or similar enshrined in various bone fragments. When this tubular part and the pins form a stationary frame, holding the fragments in the desired splicing position, and the tubular element includes an elongated flexible support form cured material, existing in the support with an inert fluid.

It is also known external locking device comprising at least one flexible, in the form of a tube part of synthetic material, nails or screws fixed in different bone fragments, while filled with cured material part in the form of a tube after curing material forms with knitting needles, nails or screws in a durable design that holds together the bone fragments to splice in the desired position, and some in the form of a tube consists of a synthetic material, and in the cavity of a closed system of tubes is injected synthetic material. Apply these cured materials, which otverzhdajutsja under the influence of visible or other light, some in the form of a tube filled with cured material wrapped opaque outer coating that for the hardening process is removed. As a synthetic tube is applied wave tube, which provides the change in cross-section, if the tube should be placed in different planes and twisted. However, United with fragments of bones, nails and needles cannot poke through the plastic tube, as in this case, which is in the cavity synthetic tube cured material could leak. For the reception of wires, nails or etc., serves as the connecting pipe.

Chrome is omery synthetic material. To varying degrees, all homogeneous synthetic materials have only a small tensile strength while at the same time a small elasticity. Hence the need for large cross sections of the carrier tube retainer, with no guarantee that the latch at peak load will not break. It should be added that the mixing synthetic material already filled tube carries many disadvantages: risk of incomplete mixing, the probability of remaining under certain conditions, toxic monomers in the retainer, the lack of a guaranteed constant cross-section of synthetic material, in particular, when the tube retainer arranged in numerous turns, the output of synthetic material from the perforations nails with loss of substance and stability. When cured by heat or radiation arise the following problems: polymerization with radiation only surfaces, the need for infrared radiation to penetrate through a system of tubes lying near the level of the skin (2-5 cm), from which it is necessary to protect the patient. Ultraviolet light instead of infrared, you can make hodnoceni hard.

The purpose of the invention is the elimination of these disadvantages increase the reliability of fixation of the bone fragments and the increase in the rigidity of fixation of bone fragments.

In Fig.1 shows in schematic form the outer locking device, superimposed on the two bone fragment; Fig.2 in schematic form of a locking device consisting of a bent loop, a tubular element connected At-(or T-)shaped detail for the case of fixation of bone fragments spokes; Fig.3 the adapter of Fig.4 view And Fig.3; Fig.5 a longitudinal section in Fig.3; Fig.6 retainer in the form of a harness for securing the V-shaped curved spokes; Fig.7 the latch for the case of fixation of bone fragments transosseous pin; Fig.8 a cross-section in Fig.7; Fig.9 the latch for the case of fixation of bone fragments sleeve with an external thread with transosseous core in the inner channel of Fig.10 section b-B in Fig.9; Fig.11 is a longitudinal section of the hammer for the introduction of a sleeve with an external thread; Fig.12 spiral cut tubular element filled with rolled fiberglass; Fig.13 section b-b of Fig.12; Fig.14 section area of the tubular element made of synthetic material placed in the Cabinet glass cloth trubka the military cured material with the lumen; in Fig.17 the slit tubular element with a housing of synthetic material reinforced with fiberglass, and Fig.18 the slit tubular element with a housing made of synthetic material with glass fibers.

The outer locking device comprises a frame 1 in the form of a flexible synthetic tubular element 2 with the lugs 3, at least one adapter 4 connecting tubular elements 2 and percutaneous rods 5 tabs 6 mounted on the tubular elements.

The adapter is made in the form of nuts 7 with opposite thread ends: right and left L, which are connected to lugs 3, made in the form of glasses with an external thread corresponding direction and the pipe 8, in which the projections 9 for fixing a tubular element 2. Glasses lugs 3 have at least one ventilation hole 10 and painted in different colors. Nut 7 adapter has a number of holes 11, forming a viewing window and along the longitudinal axis.

Frame 1 (see Fig.2) can be bent in the form of a loop 12, which is connected to the T - or U-shaped part 13 with closable filling hole 14. The frame 1 can be bent in the form of paladugu 15, soedineniya hole.

The holder 6 (Fig.6 and Fig.2) may be made in the form of harness 17 mounted on the tube 2, with the mounting end of the external terminal 5 is made V-shaped bent 180aboutand immersed in the tubular element.

The holder 6 (see Fig.7,8) can be made in the form of a split tubular body 18 having to accommodate rods of at least two coaxial plug socket 19 and 20, the axis of which is perpendicular to the axis of the housing. The nozzles are made external thread connection with nut 21, which is equipped with a seal 22. On the inner surface of the housing 18 has spikes 23 for fixing a tubular element.

The latch 6 may be made in the form of sleeve 24 with the hole percutaneous rod 5, on the outer surface of which there is a thread 25 on which the bushing is installed nut 26 with the seal 27 and nut 28 with the seal 29 and the bracket 30 with spikes for fixing 31 of the tubular element 2. Another bracket 32 has a smooth bore and is connected to the sleeve 24 by a key 33. The bracket 32 also has spikes 34 for fixing the tube 2 and secured by a nut 35.

For holding the sleeve 25 through the tubular elements 2 and bone provided the punch 36 (Fig.11) with internal thread 37 to sakralen the tasks performed curable synthetic material (see Fig. 12-16). To improve the reliability of fixation of the bone fragments tubular element is made of a spiral, with the optically transparent housing 38, is filled with fiberglass and has, as mentioned above, at least one filling hole. While fiberglass 39 can fill the tubular element 2 in the form of at least one tube or Mat, folded into a tube, and may fill the entire cavity of the tubular element (Fig.12, 13).

The cavity of the tubular element can be filled tubes 40 of glass (see Fig.14, 15) are the same or different thickness. The remaining lumen of the fill bathroomvanities synthetic material 41, which penetrates into the fiberglass, impregnate the fiber with the formation of robust design. For monitoring the degree of filling of the tubular element bathroomvanities material 41, the latter can be painted.

The outer locking device can be performed with a tubular element that is populated with synthetic bathroomvanities material, a spiral shape, with the body of optically transparent, reinforced fiberglass, synthetic material 42 (Fig.17) or synthetic material with embedded fiber 43 (Fig.18).

As fiberglass can be used products flat shape of the flagella glass fibers, glass fibers, glass mineral wool yarn or canvases. While fiberglass can have the most different types of weaves. So, may be used, for example, duramine weave, twill the CSOs holding devices of the tubular element in the form of a tube placed in the lumen of the fiber or fiberglass after attachment and fixation of bone fragments fill-hardening material. In particular, bathroomvanities synthetic material, because only the application of bystrotverdejushchie synthetic materials ensures that the recorded fragments of bone retains its predetermined position after curing. In addition, the surgeon, due to the short time of curing may retain installed along one axis of the bone fragments in position, without the surgeon's fatigue, which can lead to incorrect positioning of the bone fragments. To reduce the time of curing light can be used if you are using the correct re - Gaudiya material. Bystrotverdeyuschie synthetic material prepared outside the tube holding devices by mixing both components (hardener and plastic) and then injected into the tube holding devices through the corresponding holes. It is preferable if the tube housing 2 consists of an optically transparent synthetic material, since the introduction of the colored cured material it is possible to observe the distribution of plastic in the body cavity of the tube and control: all the parts of the tube 2 is filled with plastic.

1. The OUTER fixed the tips at the ends, at least one adapter, connecting tubular elements and cresote rods with clamps mounted on the tubular elements, and the adapter is made in the form of nuts with opposite threads on the ends and tips in the form of glasses with an external thread corresponding direction with location in the threaded holes of the nuts, and the tubular element is filled with curable synthetic material, characterized in that, to improve the reliability of fixation of bone fragments, a flexible tubular element is made of spiral optically transparent, filled with fiberglass and has the hole for the curable synthetic material.

2. External locking device that contains a frame in the form of at least one flexible synthetic tubular element with terminals at the ends, at least one adapter, connecting tubular elements and external rods with clamps mounted on the tubular elements, and the adapter is made in the form of nuts with opposite threads on the ends and tips in the form of glasses with an external thread corresponding direction and with the possibility of their location in rezinovy is, to increase the rigidity of fixation of bone fragments, a flexible tubular element is made of spiral optically transparent reinforced fiberglass, synthetic material or of synthetic material with embedded optical fibers and a filling opening for a curable synthetic material.

3. The device under item 1, characterized in that the fiber fills the tubular element in the form of at least one tube or Mat, folded into a tube.

4. The device under item 1, characterized in that the cavity of the tubular element is filled with fiberglass in the form of a tube or pipe with the same or different wall thickness or in the form of a rolled up Mat.

5. The device according to PP.1 and 2, characterized in that the tubular element is located in the frame in the form of curved loops connected T-or V-shaped item with a closable filling hole.

6. The device according to PP.1 and 2, characterized in that the frame tubular elements are in the form of a closed and connected to paladugu, United ties with the adapter and having at least one closable filling hole.

7. The device according to PP. 1 and 2, characterized in that the retainer is made figuratively bent 180oand immersed in the tubular element.

8. The device according to PP. 1 and 2, characterized in that the retainer is made in the form of a split tubular body having for the location of external terminals of at least two coaxial plug socket with male thread, the axis of which is perpendicular to the axis of the housing, and at least two axial spine on the inner surface of the tubular housing and nuts installed on the threads on the pipes.

9. The device according to PP. 1 and 2, characterized in that the retainer is made in the form of a sleeve with a hole transosseous pin having an external thread, and mounted on the sleeve nuts with o-rings and brackets with studs, with one of the brackets has a threaded hole for the bushing, and the other is smooth and connected with the sleeve by a key.

10. The device according to PP.1 and 2, characterized in that the nut adapter completed with a viewing window in the form of a number of drilled holes along the nut.

11. The device according to PP.1 and 2, characterized in that the glasses tips are painted in different colors.

12. The device according to PP.1, 2 and 11, characterized in that the glasses tips are made with vents.

13. The device according to PP.1i

 

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