UA53478U - Device for external fixation for treating bone fractures in animals - Google Patents

Abstract

A device for the external fixation for treating the bone fractures in the animals contains the transosteal orthopedic wires. Each module of the device contains such transosteal orthopedic wire with connection sleeve joined with the aid of the angle and clamp elements.

Description

UKRAINE (19) OA (11) 5Za78 (13) in ( (B1) IPC (2009)

КИ db1В 17/56

HO

MINISTRY OF EDUCATION and

OF SCIENCES OF UKRAINE (F) P I S is issued under the RESPONSIBILITY

ORIGINAL DEPARTMENT owns and INTELLECTUAL to PATENT patent

ВЛАСНОСТІ НА КОРИСНУ МОДЕЛЬ нЛляМШЛМНЛООВООНВЦ ТТ ЮІЕИКККІІИІІІІІОООТІТЬЬОООЬЬИЕІШШШШШШОЛІО.О ООЛІООИООВВОВООЛОВЛЛІЕИТОКОЛИЛОЬИХОХВОИСТЛООХХЬТТЬТЬИТНЬТЬТЬОСХХІХОТЛТИТТООХЗООТОВОООООВВЛОЛОВТИИОТОТИОТОИТНЯ» (54) ПРИСТРІЙ ЗОВНІШНЬОЇ ФІКСАЦІЇ ДЛЯ ЛІКУВАННЯ ПЕРЕЛОМІВ КІСТОК У ТВАРИН 1 2 (21) иго1003718 (57) Пристрій зовнішньої фіксації для лікування (22) 31.03.2010 переломів кісток у тварин, що містить transosseous (24) 11.10.2010 orthopedic needles, which is distinguished by the fact that (46) 11.10.2010, Byul.Mo 19, 2010 the device consists of modules, where each module (72) KISELYOV IHOR GEORGIYOVYCH contains a transosseous orthopedic needle and single- (73) KISELYOV IHOR GEORGIYOVYCH main coupling, and the modules are assembled together with the help of corners and staples.

The intended utility model refers to the segment. Rod screws with the help of nuts are fastened to veterinary surgery, namely to traumatology and through brackets to a multi-hole bar, can be used for the treatment of fractures, which serves as an external support. The disadvantage of cons- bones of small animals. tructions used are insufficient fixation

A well-known rod device for transosseous bone, and, as a result, low therapeutic osteosynthesis (see Pat. 2363413, IPC efficiency.

Ab1817/58, Russian Federation). The apparatus contains The basis of a useful model is the device of three external arcs with holes connected to each other by threaded fixations for the treatment of bone fractures in animals with rods and repositioning elements, made in the form of brackets fixed on the arcs and base due to the creation of favorable conditions for fused with transosseous rods. Transosseous bones, as well as simplification of osteosynthesis technology, the rods are fixed to the arches with the help of theses brackets by ensuring stable fixation of the bones - on the outer surface of the arches. The disadvantage of known metal fragments. The device is bulky and overweight. The task is achieved by the fact that transosseous osteosynthesis, creation of inconvenience, the device is assembled from modules, where each module (ov) of facilities for the animal, as well as care of the animal contains a transosseous orthopedic needle and a connecting che postoperative period. shaft coupling, and the modules are connected to each other by "g

A well-known device for multi-plane painting using corners and staples. single-contact periosteal and subfascial The use of the proposed design, significantly IR osteosynthesis (see Pat. 42705, IPC Ab1817/56), but reduces the compressive effect on the periosteum, which

Ukraine). The device is made in the form of an angle, ensures sufficiently fast metaplasia, connects Mai plates with combined holes. On the lateral lines of the tissue callus in the bone. In addition, the surfaces of the combined holes are carved to increase the vascularization of the damaged area of 2 types: with small and large steps and different bones. In case of diaphyseal fractures of the bones, such "І" diameters, respectively, which allows the fixation method to be effective, since special screws, also with different diameters and the creation of bone calluses in the given areas with a step of the thread along the length, to carry out the osteosynthesis stage the formation of cartilage tissue, which 5 theses. The known device, due to its design, suggests longer-term metaplasia and its physical features, is not effective in the presence of callus erosion. The positive side of the treated angular displacements of the fragments, since there is no possibility of installation of the device in the hinged device is that the bone fragment option. reponed and converged, without creating an excess

There is a known method of correction of bone deformation due to mutual compression, providing sufficient immobilization of the shoulder in animals (see Pat.

Ab1817/00, Russian Federation), in which screws - in particular, in the postoperative period. In addition, the rods are screwed into both bones of the two-bone structure, which do not include longitudinal intrame-

dular components, reduce the content of metal The received animal - an 8-month-old dog - inside the bone. tsiv The nature of the injury is a fracture of the humerus with

A useful model is explained with illustrations. displacement of bone fragments. Thanks to the production

Fig. 1 - an X-ray picture of the setting of the device, Fig. 2 - the external fixation device managed to obtain a picture of the setting of the device, Fig. 3 - an example of one-position fragments with full preservation of the geometrical setting of the device, Fig. 4 - an X-ray bone shape In the picture (see Fig. 2) you can see a picture taken on the 12th day of treatment, Fig. 2 - to observe the exact alignment and significant immobilization - an external fixation device in combination with ossification of fragments, additional means of fixation with a non-forged plate, Fig. .b - X-ray on the 10th was required. The limb was suspended 21 days after the operation, Fig. 7 - the device as a whole, Fig. 8 - day. On the 21st day after the installation of the device, the bone elements of the structure. fragments remained motionless relative to each other

External fixation device for the treatment of foam. The formation of a powerful periosteal relom of bones occurred in animals collected from modules. Calluses. After removing the device, the dog rested on the muzzle containing (see Fig. 8) orthopedic needle 1 and the operated limb on the 3rd day. connecting coupling 2. The needles can be of different diameter, depending on the operated area and the patient. The admitted animal is a dog, age 10. With the help of brackets Z and corners, 4 modules of seeds. The nature of the received injury - transverse are connected to each other in the directions that determine the fracture of the femur with a significant displacement of the fracture, as well as the operation (see Fig. 7). mkv In this case, operative treatment is not

Using the proposed device, it was carried out in a timely manner, and after 10 days, operative treatment of a group of animals from the wound was performed. For treatment, single-stranded, twisted, and other difficult-to-twist devices were used, with the use of bone scraps. Animals were operated on after 3-5 days from the moment of injury. Tasks. This case serves as an example of a compatible condition: X-ray examination, application of the external fixation device, and general clinical examination and treatment. The immobilization of the fragments was carried out according to the general practice of preparing the needles (see Fig. 3), which caused the greatest pressure before the operation. The animal relied on those techniques. During the operation, the limb was used the day after the operation. On the 20th orthopedic spokes 1 of different thicknesses, connecting the day after the placement of the device (the day of removal of the coupling 2 and staples Z and corners 4. Postoperative treatment of the device and spokes), a noticeable effect of long-term immobilization and observation of the animals was performed lysis of bone fragments without which or displacements, according to the compiled scheme, with the use of not preserving the geometric shape of the bone. Visible X-ray control. The results of the treatment - the area of formation of periosteal bone callus. were assessed based on the analysis of X-rays, Clinical case Mo4 of the general physiological state and restoration of the physiologic functionality of the injured limb of a 10-month-old German Shepherd. The character is open in the postoperative period. During the entire post-operative period, the animals rested on the operative fracture of the tibia. A limb was operated on. two hours after admission to the clinic. It was

Clinical case Me1, an external fixation device was applied in a combi-

The received animal is a 1.5-year-old cat. nations with a bony plate. In this case

The type of pathology - a fragment fracture with a significant device was an additional guarantee of mutual fix- displacement of bone fragments. There were 4 ablation and immobilization of bone fragments and femur reshaping, which required significant repositioning for the rotational effect to occur. At the end of the session. There were different directions of fractures, the position of which the dog rested on the day after the operation. breaks in different planes relative to each other. After 12 days after installation, the device is visible

Complications that arose during the staging process are the effect of complete immobilization of the bone fragments of the system (reposition and immobilization of bone fragments), (Fig. 4). Rotational or linear displacement of the fragments were successfully overcome with the help of transverse relative to each other did not occur. transosseous insertion of needles 1 followed by fastening with couplings 2 and staples 3. Transverse needles 1 were drilled into the bone after repositioning for 4 months. The nature of the received injury is the transversal of the fragments, passing through each of the fragments, causing a diaphyseal fracture of the femur with significant pulling them to the fracture site, additionally separated by the displacement of the bone fragments. Operative areas to strengthen the fixation were fixed ton- treatment of the fracture was complicated by high-speed needles (see Fig. 1). In this case, the speed of regeneration of bone tissue, since bilateral fixation was applied (longitudinal, the animal is young and the process of osteogenesis is taking place - the connections of the parts of the apparatus pass over the soft ones quite quickly. Therefore, strict tissue on both sides of the bone was necessary). After 21 control of the immobilization of the fragments with the aim of the day after surgery, the device was removed by running the malunion. In the course of the transversal rod fracture operation and subsequent extraction, it was possible to ensure reliable fixation of the fracture from the bone. The animal rested on the limb on the keel by means of a simultaneous setting of the periosteum on the second day after the operation. plate and external fixation device (see

Clinical case Me2 Fig. 5). On the seventh day after placing the device (see Fig. b), areas of bone formation are visible

Claims (1)

corns Taking into account all the related factors of regeneration - ease of assembly of the device; tions, speed of osteogenesis and formation of periosteum - reliability of fixation of bone fragments at the callus, the device was removed on the 10th day after constant dynamic loads on the limb; operation, without removing the plate. Immediately after - the possibility of converging bone fragments from the operation, the animal did not lean on the limb. After further fixation in the desired plane; the removal of the apparatus gradually increased the volume of pos- - the possibility of combining the apparatus of the external stomp gait of the limb. This case is an example of fixation with intramedullary and axial fixation - possible changes in the shape and direction of spinal cord cells; components of the design, as well as a certificate of the availability of the device at a price. parts of the device can be not only different, but also highly therapeutic. Yes, when not located in different planes. arbitrary state of bone fragments (in the number of The advantages of the proposed device are: more than three), with multidirectionality of bone - minimization of the presence of metal in the bone fragments relative to each other, as well as different tissue while maintaining sufficient immobilization of the fracture surfaces of bone tissue, the formation of bone-bone fragments ; calluses and restoration of locomotion of the extremity - ease of combination with other intramedullary in the shortest possible time, under the conditions of constant them (pins) and axial (plates) fixators; dynamic activity. EOM their x Shi PDK EE NN with I PE and. m. se I ZNNYA Zhe Z ko 5. PMM -- "her is she she she she- Za she PC o KK 5 OKOM "s and F ShCDYyYe"7 Fig. 1 Y MO Ov i is oso koso ov ov sk porve introduced va reve her so s. with 5 syu. in 0. there are still o her o y : . p chav xx Fig. ? She EE a h ee shi z I NtPND 5 s But ONE, PO MOZ Z --5 5: y I : 56 x. MB - y 7 as V ky OO HO OM pl "Fig. 6 and 1; s p t s; Y Fig and Y D (From shchyshbIny 0. with Z. about SO. p. m o re o s 5 Fig. 8 Computer layout by A. Ryabko Signature Circulation 26 approx. Ministry of Education and Science of Ukraine State Department of Intellectual Property, str. Urytskogo, 45, m. Kyiv, MSP, 03680, Ukraine SE "Ukrainian Institute of Industrial Property", str. Glazunova, 1, m. Kyiv - 42, 01601