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A low profile transverse connector for spinal fixation

A low-profile, horizontal connection technology, which is applied in the direction of fixators, internal fixators, and internal bone synthesis, can solve the problems of strong foreign body sensation on the back of patients and increase the difficulty of surgical suture, and achieve convenient and quick installation, reduce suture difficulty, The effect of lowering the altitude

Active Publication Date: 2015-12-23
SHANDONG HANGWEI ORTHOPEDICS MEDICAL INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To sum up, in the currently disclosed horizontal connectors, the locking bolts are mostly located above the horizontal connecting rod and are generally higher. Such a structure increases the difficulty of suturing the operation and makes the patient feel a strong foreign body on the back.

Method used

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  • A low profile transverse connector for spinal fixation
  • A low profile transverse connector for spinal fixation
  • A low profile transverse connector for spinal fixation

Examples

Experimental program
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Effect test

Embodiment approach

[0015] Figure 1-Figure 3 It shows the structure of the left hook 1 in the embodiment of the low-profile horizontal connector for spinal fixation of the present invention. A cross arm 6 is arranged above the left hook 1, and a transverse groove 7 is arranged under the cross arm 6. , the groove bottom of the horizontal groove 7 is provided with a horizontal connecting rod groove 8 parallel to the bottom of the groove, and the bottom of the horizontal groove 7 is provided with a groove 9 perpendicular to the extending direction of the horizontal connecting rod groove 8, and the groove Groove 9 is used for hooking nail bar 5, and described nail bar 5 is in figure 2 Shown by a double-dotted line, the hook left 1 is provided with a countersunk screw hole 10, the countersunk screw hole 10 is used to screw in the countersunk screw 3, and the countersunk screw hole 10 is vertical or inclined Through the cross arm 6, the transverse groove 7, and the side wall of the opening direction...

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PUM

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Abstract

The invention discloses a low-incisura cross connecting device for fixing the spine. The low-incisura cross connecting device comprises a left hook 1, a right hook 2, sunk screws 3 and a cross connecting rod 4, the left hook and the right hook are of a symmetric structure, cross arms are arranged on the upper portion of the left hook and the upper portion of the right hook, cross grooves are formed below the cross arms, cross connecting rod grooves are formed in the groove bottoms of the cross grooves and used for allowing the cross connecting rod to be inserted to connect the two hooks, grooves perpendicular to the extending direction of the cross connecting rod grooves are formed below the cross grooves and used for hooking nail bars 5 of a spine fixator, sunk screw holes are formed in the left hook and the right hook, sunk screws are screwed into the sunk screw holes to lock the cross connecting rod, the sunk screw holes penetrate through the cross arms, the cross grooves and side walls in the opening direction of the grooves vertically or obliquely, the sunk screw holes penetrate through the nail bars in the extending direction of the sunk screw holes, and the sunk screws and the nail bars are in interference fit to lock the nail bars. According to the low-incisura cross connecting device for fixing the spine, the locking mode of a current cross connecting device is changed, the height of the cross connecting device is reduced, therefore, the suturing difficulty of an operation is reduced, and the foreign body sensation of a patient after the operation is reduced.

Description

technical field [0001] The invention relates to the field of orthopedic medical instruments. Background technique [0002] At present, in spinal surgery, a spinal fixator plus a transverse connector is commonly used to fix the spine. The transverse connector includes two hooks, and grooves are provided below the hooks to catch the nail rod of the spinal fixer. A horizontal connecting rod groove is provided above the groove in a direction perpendicular to the groove, and a horizontal connecting rod is inserted into the horizontal connecting rod groove to connect the two hooks. A locking bolt is arranged above the horizontal connecting rod groove, and Make force from top to bottom to lock the horizontal connecting rod and the nail bar. Invention patent CN201110208678.5 discloses a horizontal connector for spinal fixation, which includes two clamping seats, two locking bolts, and a horizontal connecting rod, and each clamping seat is provided with a card slot opening downward ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/70
CPCA61B17/7049
Inventor 孙德修
Owner SHANDONG HANGWEI ORTHOPEDICS MEDICAL INSTR
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