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Novel split type artificial vertebra device

A split, artificial technology, applied in the direction of prosthesis, internal bone synthesis, medical science, etc., can solve the problems of poor tolerance and large trauma of tumor patients, and achieve the effect of good fixation effect, small trauma and simple process.

Inactive Publication Date: 2017-08-15
张洪剑
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above existing problems, the present invention provides a novel split-type artificial vertebral device to solve the problems that the vertebral body prosthesis in the prior art causes greater trauma to patients and poor tolerance of tumor patients. The vertebral body prosthesis is placed through the posterior approach to reduce the trauma of the combined anterior and posterior approach to the patient and rebuild the stability of the three columns of the vertebral body. It has the advantages of small trauma, time period, high stability, and good continuity, which increases the safety of the operation. Unique, convenient to achieve minimally invasive treatment of spinal cord tumors

Method used

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  • Novel split type artificial vertebra device
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  • Novel split type artificial vertebra device

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Experimental program
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Effect test

Embodiment 1

[0036] Such as Figure 1~3 , 7 to 9, the novel split type artificial vertebral device provided by Embodiment 1 of the present invention includes a U-shaped upper endplate prosthesis 1 in a top view, and a U-shaped lower endplate prosthesis 2 in a bottom view. A front support rod 3 and two parallel pedicle connecting rods 4 between the upper endplate prosthesis 1 and the lower endplate prosthesis 2;

[0037] Both ends of the opening of the upper endplate prosthesis 1 and both ends of the opening of the lower endplate prosthesis 2 are respectively connected to two pedicle connecting rods 4 through pedicle bolts 6, and are located at the end of the upper endplate prosthesis 1. Multiple sets of pedicle screws 5 are arranged on the two pedicle connecting rods 4 above and below the lower endplate prosthesis 2;

[0038] The pedicle bolt 6 includes a threaded part 61 that can be screwed into the upper endplate prosthesis 1 and the lower endplate prosthesis 2 and a connecting rod hole...

Embodiment 2

[0061] Such as Figure 4-9 As shown, the novel split type artificial vertebral device provided by the embodiment 2 provided by the present invention comprises a U-shaped upper endplate prosthesis 1 in a top view, a U-shaped lower endplate prosthesis 2 in a bottom view, and a U-shaped lower endplate prosthesis 2 arranged on the upper endplate A front support rod 3 and two parallel pedicle connecting rods 4 between the plate prosthesis 1 and the lower endplate prosthesis 2;

[0062] Both ends of the opening of the upper endplate prosthesis 1 and both ends of the opening of the lower endplate prosthesis 2 are connected to the two pedicle connecting rods 4 through pedicle bolts 6 respectively, located at the end of the upper endplate prosthesis 1 Multiple sets of pedicle screws 5 are arranged on the two pedicle connecting rods 4 above and below the lower endplate prosthesis 2;

[0063] The pedicle bolt 6 includes a threaded part 61 that can be screwed into the upper endplate pros...

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Abstract

The invention provides a novel split type artificial vertebra device, and relates to the field of spine surgical instruments. The novel split type artificial vertebra device includes an upper end plate prosthesis having an overlooking U shape, a lower end plate prosthesis, and at least one front support bar and two mutual parallel vertebral arch pedicle connection rods which are arranged between the upper end plate prosthesis and the lower end plate prosthesis; two ends of an opening portion of the upper end plate prosthesis and two ends of an opening portion of the lower end plate prosthesis are connected to the two vertebral arch pedicle connection rods through vertebral arch pedicle bolts; and a plurality of groups of vertebral arch pedicle screws are arranged the two vertebral arch pedicle connection rods positioned above the upper end plate prosthesis and under the lower end plate prosthesis. The novel split type artificial vertebra device can place a vertebra prosthesis through a posterior approach operation, can reduce trauma of an anterior and posterior approach combined operation to a patient, can reconstruct the three-column stability of a vertebra, is less in trauma, is short in time, is high in stability, and is good in continuity.

Description

technical field [0001] The invention relates to the field of spinal surgery, in particular to a novel split artificial vertebra device. Background technique [0002] According to Dnesi's three-column theory, resection of thoracolumbar tumors will cause damage to the stability of the spine. Most spinal tumors are mainly osteolytic destruction in the affected vertebral bodies, which can easily lead to vertebral body collapse and pathological fractures. The destruction of the two columns of the spine not only forms a space occupying the spinal canal, but also affects the stability of the spine, which can cause instability in the horizontal direction. The axial instability of the spine is caused by the destruction of the upper and lower endplates, which is related to the compressibility Unlike spinal fractures, the endplates are intact after spinal compression fractures. Spinal instability can not only aggravate spinal cord dysfunction, but also be one of the main causes of loc...

Claims

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Application Information

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IPC IPC(8): A61F2/44
CPCA61F2/30721A61F2/44A61F2002/30433A61B17/7032
Inventor 张洪剑石志才
Owner 张洪剑