SU950363A1

SU950363A1 - Apparatus for connecting bone fragments

Info

Publication number: SU950363A1
Application number: SU813243078A
Authority: SU
Inventors: Владимир Игоревич Карчемский; Олег Владимирович Дольницкий; Валентин Дмитриевич Шадырь
Original assignee: Киевский Ордена Трудового Красного Знамени Медицинский Институт Им.Акад.А.А.Богомольца
Priority date: 1981-01-27
Filing date: 1981-01-27
Publication date: 1982-08-15

Description

(54) УСТРОЙСТВО ДЛЯ СОЕДИНЕНИЯ КОСТНЫХ ФРАГМЕНТОВ(54) DEVICE FOR CONNECTING BONE FRAGMENTS

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Изобретение относитс к медицинской технике, а именно к устройствам дл осуществлени остеосинтеза, и может быть использовано дл соединени костей лучезап стного сустава.The invention relates to medical technology, namely, devices for carrying out osteosynthesis, and can be used to connect the bones of the radiocarpal joint.

Известно устройство дл соединени костных фрагментов, содержащее пластину, на которой установлены крепежные элементы в виде стержн с загнутым концом, резьбовой частью, на которой установлена гайка со сферической головкой и проточкой, причем ширина проточки соответствует толщине пластины 1.A device for joining bone fragments is known, comprising a plate on which are mounted fasteners in the form of a rod with a curved end, a threaded part on which a nut with a spherical head and a groove is installed, the width of the groove corresponding to the thickness of the plate 1.

Однако известное устройство не позвол ет соедин ть кости лучезап стного сустава , что ограничивает область его использовани . .However, the known device does not allow the bones of the lacrimal joint to be connected, which limits the area of its use. .

Целью изобретени вл етс возможность соединени костей лучезап стного сустава.The aim of the invention is the ability to connect the bones of the radiocarpal joint.

Поставленна цель достигаетс тем, что устройство дл соединени костных фрагментов , содержащее пластину, на которой установлены крепежные, элементы в виде стержн с загнутым концом, резьбовой частью, на которой установлена гайка со сферической головкой и проточкой, причем ширина проточки соответствует толщине пластины, снабжено изогнутой пластиной с крепежным элементом, соединенной одним концом с основной пластиной с помощью указанных крепежных элементов .The goal is achieved by the device for joining bone fragments, which contains a plate on which fasteners are installed, rod-shaped elements with a curved end, a threaded part on which a nut with a spherical head and a groove is installed, the groove width corresponding to the thickness of the plate, provided with a curved plate with a fastener connected at one end with the main plate with the help of these fasteners.

На фиг. 1 изображено устройство дл соединени костных фрагментов, вид сверху; на фиг. 2 - то же, вид сбоку; на фиг. 3 - пр молинейна пластина; на фиг. 4 - изогнута пластина; на фиг. 5 - FIG. 1 shows a device for joining bone fragments, top view; in fig. 2 - the same, side view; in fig. 3 - straight linear plate; in fig. 4 - plate bent; in fig. five -

10 стержень с загнутым концом; на фиг. 6 - гайка крепежного элемента, сечение.10 rod with a curved end; in fig. 6 — fastener nut, section.

Устройство содержит пр молинейную основную пластину 1, согнутую под углом 20°, и штыкообразно изогнутую пластину 2, соединенные между собой в проксимальной части крепежными элементами в виде стержн 3 с загнутым концом и резьбовой частью, на которой установлена гайка 4 со сферической головкой. На дистальных концах пластин 1 и 2 также The device comprises a rectilinear main plate 1, bent at an angle of 20 °, and a bayonet-bent plate 2, interconnected in the proximal part by fastening elements in the form of a rod 3 with a bent end and a threaded part on which a nut 4 with a spherical head is mounted. At the distal ends of the plates 1 and 2 also

Claims

20 mounted rods 3 with nuts 5 with a spherical head. Nuts 4 and 5 are made with a groove 6, the width of which for nut 4 corresponds to the thickness of two plates I and 2 fastened together, and for nut 5 to the thickness of one plate. The main plate 1 is provided with threaded holes 7 for the external thread of nuts 4 and 5, and plate 2 for oval holes 8 for fasteners and the threaded hole 9 for the external thread of the nut 5. When performing arthrodesis of the wrist joint, the device is used as follows. The plate 1 is attached to the second bone bone 10 with a nut 5 and a rod 3 (FIGS. 1 and 2), and the plate 2 is attached to the fourth finger bone 11, also using a rod 3 and a nut. 5. Moreover, the cores 3 are fastened to the bone marrows 10 and 11 by covering the bones with their curved ends. After that, plates 1 and 2 are attached to the radial bone 12. At the same time, holes are drilled in bone 12 with a diameter equal to the diameter of the threaded protrusion of the nut 4. The presence of grooves in nuts 4 and 5 provides for the mobile connection of the latter with the plates and the ability to tighten the bones to using rods 3. Because the plates 1 and 2 are bent at an angle of 20 °, the brush is fixed to the B optimum position, which allows you to perform a certain type of work in the future. The use of the proposed device makes it possible to ensure reliable fixation, to achieve splicing at the optimum time, to reduce the time of immobilization in the postoperative period, to prevent excessive traumatization of the bone tissue and the distal radial bone growth zone in childhood. Apparatus of the invention for joining bone fragments, comprising a plate on which are mounted fasteners in the form of a rod with a curved end, a threaded part on which a nut with a spherical head and a groove is installed, the width of the groove corresponding to the thickness of the plate, characterized in that the ability to connect the bones of the wrist joint, the device is equipped with a curved plate with a fastener connected at one end to the main plate with the help of the specified fastening elements at. Sources of information taken into account in the examination 1. USSR author's certificate in patent No. 3210347 / 28-13, cl. A 61 B 17/18, 1980.

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FIG. 6