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An external fixator

A technology of external fixator and orthopedic surgery, applied in the direction of external fixator, fixator, etc., can solve the problems of surgeon and patient infection, difficulty in installing fixation device, patient discomfort and pain

Inactive Publication Date: 2019-08-16
YEDITEPE UNIVSI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the currently existing Ilizarov external fixators, the patient suffers from a great deal of discomfort and pain as well as difficulty in fitting the fixation device due to the form of engagement of the rod with the ring
Additionally, bending the needle may also pose an infection risk to both the surgeon and the patient

Method used

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  • An external fixator
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Examples

Experimental program
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Embodiment Construction

[0026] External fixator (1) for orthopedic surgery, consisting of

[0027] - at least four half-rings (2) having at each end a raised area providing connection to form a complete ring, wherein each half-ring comprises: spaced parallel to the axis of the ring the rod hole of the ring; and the channel groove between the rod hole and the outer edge of the ring, wherein the channel groove is narrower than the rod hole,

[0028] - at least four connectors (bolts and nuts) (3) which fasten the half-rings to each other through connection holes located in the protruding areas of the half-rings (2),

[0029] - at least three threaded rods (4) of the same diameter as and fitted into the rod holes, and in the form of rods, trimmed longitudinally from two opposite sides of the diameter so as to be equal to the width of the channel slot,

[0030] - the nut (5) securing the rod (4) to the half-ring (2),

[0031] - At least one Kirschner wire (6) to fix bone and soft tissue,

[0032] - At...

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PUM

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Abstract

The present invention relates to an external fixator comprises at least four half rings (2) which have ledged areas on each end that provide connections to form full rings, each half ring includes rodholes and channel slots; rod holes are at certain intervals parallel to the axis of the ring, and channel slots are between the rod holes and the outer edge of the ring, narrower than the rod holes;at least four connectors (3) which fix the half rings to each other through the connection holes; at least three threaded rods (4), which have the same diameter with those of the rod holes and fit into the rod holes, and which are in the form of bars that are trimmed longitudinally from two opposite sides of the diameter so as to be equal to the width of the channel slot; nuts (5) which fix the rods (4) to the half rings (2); at least one Kirschner wire (6) to fix the bones and soft tissues; at least two wire fixation bolts (7) which are passed through the rod holes to fix the Kirschner wire (6) at both ends to the half rings (2); an apparatus (8) to bend the ends of the Kirschner wire (6), whose one end holds the wire and the other end has a handle to easily bend.

Description

technical field [0001] The present invention relates to an Ilizarov external fixator for use in orthopedic surgery, such as repair of segmental fractures, correction of congenital or developmental deformities, and limb lengthening. Background technique [0002] External fixators are used in orthopedic surgery to stabilize and align bone and soft tissue. The Ilizarov external fixator stabilizes the limb by passing Kirschner wires transversely through the bone, holding them in place, to an external frame, usually a ring. [0003] In the Ilizarov external fixator, each set of half rings is placed around the site to be stabilized and then assembled into a full ring. Threaded rods pass through the holes at regular intervals on the ring and are secured by nuts from the bottom and top of the ring. Thus, a cage-like structure is formed along the limb by the rings and rods. To adjust the position of the rings relative to each other, the nuts are loosened and the rings are moved al...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/62
CPCA61B17/62
Inventor T.巴哈迪A.雅曼
Owner YEDITEPE UNIVSI