Internal fixing device for anterior cervical spine
A fixation device and an anterior approach to the cervical spine, applied in the direction of internal fixators, fixators, and internal bone synthesis, can solve the problems of poor stability and stress concentration in the design of the two-tooth structure, and achieve the elimination of nut fixation adjustment time and complete healing , The effect of eliminating the installation steps
Inactive Publication Date: 2016-03-30
SHANGHAI MICROPORT ORTHOPEDICS
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Problems solved by technology
This technology is made of titanium alloy, with a single structure design and compression molding, which is prone to disadvantages such as stress concentration, and does not involve the pressurization function, and the stability of the two-tooth structure design is poor
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[0045] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0046] figure 1 It is a schematic diagram of the overall structure of the anterior cervical internal fixation device in the embodiment of the present invention.
[0047] See figure 1 The anterior cervical internal fixation device provided in this embodiment includes a pair of upper fixing feet 1, a pair of lower fixing feet 2, a pair of first connecting rods 21, a pair of second connecting rods 22 and at least one reinforcing rod 7, The upper fixed foot 1 and the lower fixed foot 2 are arranged oppositely; the two upper fixed feet 1 are connected by a first connecting rod 21, and the two lower fixed feet 2 are connected by another first connecting rod 21. The upper fixed foot 1 and the lower fixed foot 2 are connected by the second connecting rod 22; connect.
[0048] The top 4 of the upper fixed foot 1 and the lower fixed foot 2 is conical, prefera...
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The invention discloses an internal fixing device for an anterior cervical spine. The device comprises a pair of upper fixing feet, a pair of lower fixing feet, a pair of first connecting rods, a pair of second connecting rods and at least one reinforcing rod; the upper fixing feet and the lower fixing feet are oppositely arranged; the upper fixing feet are connected with each other through one first connecting rod, the lower fixing feet are connected with each other through the other first connecting rod, and the opposite upper fixing feet and lower fixing feet are connected with each other through the second connecting rods; the reinforcing rods are located between the second connecting rods, and the two ends of the reinforcing rods are connected with the first connecting rods respectively. According to the internal fixing device for the anterior cervical spine, by adopting the four-tooth design and a vertical and left-right two-way pressurizing fixing mode, the effect of two-way pressurizing fixing on the single-segment cervical spine is achieved, the physiological structure characteristics of the cervical spine are met, the attaching performance is good, and the very stable and firm fixing effect can be supplied; in addition, the structure is simple, and installation and adjustment are easy.
Description
technical field [0001] The invention relates to a medical fixation system, in particular to an anterior cervical internal fixation device. Background technique [0002] Since the 1950s and 1960s, after Bailey and Badgley first used anterior decompression autologous bone implant fusion for the treatment of cervical spondylosis, Smith, Robison and Cloward et al. improved and developed this new cervical spondylosis treatment technique Since its popularization and application, the surgical method of anterior cervical plate and screw internal fixation has been widely accepted, especially in the clinical treatment of cervical traumatic fractures, dislocations, and degenerative cervical diseases. Anterior plate and screw internal fixation after discectomy and bone graft can significantly enhance the stability of the cervical spine and bone graft, reduce pathological activities that can lead to pseudarthrosis, prevent the loss of intervertebral height and promote bone graft fusion. ...
Claims
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IPC IPC(8): A61B17/70
Inventor 张隽耿芳王盛强林忠
Owner SHANGHAI MICROPORT ORTHOPEDICS