A single incision interlocking intramedullary nail system
An intramedullary nailing and interlocking technology, applied in the direction of internal fixator, internal bone synthesis, fixator, etc., can solve the problem of high success rate of proximal locking nail placement, difficulty in distal locking nail placement, long operation time, etc. problems, to achieve the effect of reducing the risk of nail failure, reducing the risk of entering the intramedullary nail, and shortening the recovery time
Active Publication Date: 2021-10-08
江佩师
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Problems solved by technology
[0005] 1. Aimer locking nails, the success rate of proximal locking nails is high, because the intramedullary nail may be deformed after insertion, and does not match the hole on the aiming frame, so it is difficult to insert distal locking nails, and it needs to be repeated during the operation Take X-rays to determine the location of the locking pins
[0006] 2. Magnetic navigation pins and electronic navigation pins are cumbersome to operate, take a long time to operate, have poor accuracy, and are expensive
[0007] 3. The above-mentioned intramedullary nail system is inserted from the outside to the inside, and there will be multiple nail incisions, and the risk of postoperative infection is high
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[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.
[0038] In describing the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", " The orientation or positional relationship indicated by "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, so as to Specific orientation configurations and operations, therefore, are not to be construed as limitations on the invention.
[0039] refer to Figure ...
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The invention discloses a single-incision interlocking intramedullary nail system, which relates to the technical field of medical devices, and comprises a pipe body and a sleeve screwdriver. The inner wall of one end of the pipe body is fixedly provided with a sealing plate, and the pipe body is far away from the sealing plate. One end of the pipe body is fixedly provided with a fixed plate, and the inner wall of the pipe body is fixedly provided with four fixed frames, and the two corresponding fixed frames are connected by a rotating rod, and the two ends of the rotating rod respectively pass through the fixed frame and outwardly Extending, the outer wall of the rotating rod is provided with a worm, the worm is arranged in the fixed frame, self-tapping screws are arranged on both sides of the fixed frame, and the worm is connected with the self-tapping screw through a linkage mechanism. In the present invention, the self-tapping screw is unscrewed from the side from the inside to the outside through the built-in worm gear system. Traditional surgery requires three incisions, but this device only needs one surgical incision, which reduces surgical incisions and reduces the pain of surgery for patients.
Description
technical field [0001] The invention relates to the technical field of medical instruments, in particular to a single-incision interlocking intramedullary nail system. Background technique [0002] The interlocking intramedullary nail is a commonly used orthopedic internal fixation device for the treatment of long bone fractures. Compared with plate fixation, the interlocking intramedullary nail causes less damage to the patient's fracture and can achieve a three-dimensional fixation effect, which is conducive to the early acceptance of functional exercises by the patient. The clinical effect is remarkable , especially for patients with multi-segment fractures and comminuted fractures, the effect is remarkable. [0003] The locking nail insertion methods of the existing intramedullary nail system include: placing the locking nail with an aimer, placing the locking nail with magnetic navigation, and placing the locking nail with electronic navigation. [0004] Defects of the...
Claims
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IPC IPC(8): A61B17/72
CPCA61B17/725
Inventor 江佩师
Owner 江佩师