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Subtotal ablation of anterior cervical vertebrae continuity multiple corpus vertebraes physiological inner fixing device

An anterior cervical approach and fixation device technology, applied in the directions of internal fixator, fixator, internal bone synthesis, etc., can solve the problems of high intervertebral fusion rate, poor treatment effect, easy loosening and fracture of internal fixation, etc.

Inactive Publication Date: 2010-12-15
李郁松
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] After anterior multivertebral corpectomy and decompression, bone grafting or internal fixation with titanium mesh and plate and screw fusion is a common method for treating cervical spinal cord compression caused by anterior lesions. After a large number of postoperative follow-ups Although the therapeutic effect of this surgical method is obvious, it also has defects such as high intervertebral fusion rate and easy loosening and fracture of internal fixation, so it is gradually replaced by posterior indirect decompression and fusion, but The treatment effect is worse than the previous way

Method used

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  • Subtotal ablation of anterior cervical vertebrae continuity multiple corpus vertebraes physiological inner fixing device
  • Subtotal ablation of anterior cervical vertebrae continuity multiple corpus vertebraes physiological inner fixing device
  • Subtotal ablation of anterior cervical vertebrae continuity multiple corpus vertebraes physiological inner fixing device

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Embodiment Construction

[0016] Such as figure 1 As shown, the anterior cervical continuous multi-vertebral subtotal corpectomy physiological internal fixation device of the present invention is composed of two fixed seats 1 at both ends and two intermediate fixed units connected in series, and the two fixed seats 1 are in opposite directions. The bottom surface of the seat 1 forms a ball socket 8, and each intermediate fixed unit includes a telescopic mechanism. Two anterior pedicle screws 3 are connected to the top, and the ends of the pedicle screws 3 are screwed with posterior pedicle nuts 4 . The end of a joint rod 5 of the upper middle fixed unit forms a ball head 9, which is connected with the ball socket 8 on the bottom surface of the upper fixed seat 1 to form a movable fit, and the end of a joint rod 5 of the lower middle fixed unit forms a ball head 9. The ball head 9 is connected with the ball socket 8 on the bottom surface of the fixed seat 1 below to form a movable fit; for the two join...

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Abstract

The invention discloses an anterior cervical subtotal subcorpectomy physiological internal fixation, which comprises two retaining brackets on the two ends and a plurality of intermittent fixation units. Each intermittent fixation unit comprises one adjustable mechanism, the two ends of adjustable mechanism are connected with one knuckle arm respectively, the outer part of adjustable device is equipped with one lantern ring, the lantern ring is connected with two anterior pedicle of vertebral arch screws, the end of rear pedicle of vertebral arch screws, the end of knuckle arm is equipped with bulb or ball socket, the two near intermittent units are connected with each other through bulb and ball socket to form movable fit, the intermittent fixation unit is also connected with retaining bracket through bulb and ball socket to form movable fit. The fixation device is suitable for fiaxtoin for a plurality of continuous subtotal subcorpectomys, and maintains the up and down motion between near vertebra, reduces compensation motion for near vertebra and prevents vertebra degeneration.

Description

technical field [0001] The invention relates to an orthopedic medical instrument, in particular to a device for fixing a subtotal cervical vertebrae. Background technique [0002] After anterior multivertebral corpectomy and decompression, bone grafting or internal fixation with titanium mesh and plate and screw fusion is a common method for treating cervical spinal cord compression caused by anterior lesions. After a large number of postoperative follow-ups Although the therapeutic effect of this surgical method is obvious, it also has defects such as high intervertebral fusion rate and easy loosening and fracture of internal fixation, so it is gradually replaced by posterior indirect decompression and fusion, but The therapeutic effect is worse than that of the previous method. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a cervical spine fixation device. After the device is implanted in the surgical site, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/70A61B17/68A61F2/44
Inventor 李郁松
Owner 李郁松
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