CN2285134Y - Tongs clamp type fixator with convex surface - Google Patents

Abstract

The utility model relates to a tongs clamp type fixer for a spinous process, which is mainly suitable for a patient undergoing an operation for a spine fracture combined with a spinal cord injury and an orthopedics for a hyboma abnormality. In the utility model, a ladder-shaped frame is formed by the connection of cross-bridges, supporting pull rods and claw palms, wherein, the claw palms are arranged at four angles, the horizontal minor faces are the cross-bridges, the longitudinal major faces are the supporting pull rods, and claw nails are arranged on one side of the surfaces of the claw palms. Because a plurality of claw nails are used and inserted into both sides of the root part of a spinous process of a human spine, the utility model has multiple stressed parts, large stressed area, and strong stretch and rotation resistance. The utility model has the characteristic of easy and safe operation.

Description

Clamp type spinous process holder

This utility model relates to a kind of human spine's inner fixer, particularly a kind of clamp type spinous process holder, and the operative treatment family dependant who mainly is applicable to leans on fracture and merges spinal cord injury and the orthopedic patient of kyphosis deformity.

Along with the development of traffic and building industry, spinal fracture merges the common diseases that spinal cord injury has become hospital orthopedics, and the important ring that the operative treatment spinal fracture merges the damage of family dependant's marrow is the effective reduction of the fracture and internal fixation.Internal fixation of spine device at present commonly used is as fixedly the spinous process copper coin of spinous process, fixedly the Harrinton system of vertebral plate and Lugue system.These devices are all found some shortcomings in clinical use.Though spinous process steel plate safety, destructive little, it is firm that it is fixedly owed.Harrinton and Lugue system are fixing more reliable, but its operative incision is long, must appear multi-segmental spinal column rear side, and must wear steel wire under vertebral plate, and the possibility of the spinal cord that damages or increase the weight of to damage is arranged.

The purpose of this utility model is a kind of clamp type spinous process holder of design, adopts pawl formula structure, can be at the sick vertebra fixing spinous process of single-unit section or multi-segmental bilateral symmetric property up and down, thus spinal fixation effectively.

Clamp type spinous process holder by cross-bridges, support pull bar, the pawl palm be linked to be "

" the shape framework, the pawl palm is positioned on four angles, and laterally minor face is a cross-bridges, and vertically long limit is the support pull bar, and a side is provided with the pawl nail on the face of the pawl palm.Pawl nail is located on 4 angles of the pawl palm, the outer a pair of long pawl nail that is, inner a pair ofly follow closely for short pawl.The face of the pawl palm is provided with scalariform and takes out the hole, and corresponding pawl palm avris is provided with trapezoidal scarce limit, constitutes the clamp mouth.

This utility model adopts a plurality of pawl nails to snap in from the root bilateral of human spine's spinous process, and the force part is many, and lifting surface area is big, thereby overcomes spinous process sclerotin pine, fixing not firm shortcoming; The support pull bar of this holder can pre-bending adapts to the physiologic radian of spinal column, has stronger anti-stretching to draw and anti-turning effort; Wear steel wire bundle if take out Kong Kongzhong, the very strong antitorque usefulness that transfers to is then arranged in the standby scalariform of this holder; This holder is cross-bridges to be pre-bent to about 90 ° in advance in addition, straddle on the spinous process, it is fixing to exert pressure with clamp, during taking-up, the clamp mouth is clamped with clamp in both sides, pulls open the both sides pawl palm, and the pawl nail takes out thereupon, therefore simple operation, safety all play an important role to wound bleeding and postoperative wound infection in the minimizing art.

Fig. 1 is this utility model structural front view

Fig. 2 is this utility model structure left view

Fig. 3 is this utility model structure vertical view

Fig. 4 is the A-A cut-away view of Fig. 1

Fig. 5 is this utility model structure rearview

Present embodiment by cross-bridges 1, the pawl palm 2, support pull bar 3 be linked to be "

" the shape framework, the pawl palm 2 is positioned on four angles, and laterally minor face is a cross-bridges 1, and vertically long limit is support pull bar 3, and a side is provided with four pawl nails on the face of the pawl palm 2, the outer a pair of long pawl nail 5 that is, the inner a pair of short pawl nail 6 that is.Be provided with scalariform threaded hole of steel 4 on the face of the pawl palm 2, corresponding pawl palm avris is provided with trapezoidal scarce limit 7, constitutes the clamp mouth.

Claims (3)

1, a kind of clamp type spinous process holder, it is characterized in that by cross-bridges, support pull bar, the pawl palm be linked to be " " the shape framework, the pawl palm is positioned on four angles, and laterally minor face is a cross-bridges, and vertically long limit is the support pull bar, and a side is provided with the pawl nail on the face of the pawl palm.

2, clamp type spinous process holder according to claim 1 is characterized in that pawl nail is located on 4 angles of the pawl palm, the outer a pair of long pawl nail that is, inner a pair ofly follow closely for short pawl.

3, clamp type spinous process holder according to claim 1 is characterized in that the face of the pawl palm is provided with scalariform taking-up hole, and corresponding pawl palm avris is provided with trapezoidal scarce limit, constitutes the clamp mouth.

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