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Composite bone crusher for spine surgery

A bone crusher and surgical technology, applied in the fields of application, medical science, food science, etc., can solve the problems of residual bone fragments, inconvenient use, etc., and achieve the effect of reducing residues

Active Publication Date: 2021-12-14
THE SECOND AFFILIATED HOSPITAL OF SHANDONG FIRST MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the pulverization process, there are many residual bone fragments, which makes it inconvenient to use

Method used

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  • Composite bone crusher for spine surgery
  • Composite bone crusher for spine surgery
  • Composite bone crusher for spine surgery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A kind of composite bone crusher for spinal surgery, as attached figure 1 , attached figure 2 And attached image 3 As shown, the main body 11 is included, and the top wall of the main body 11 is provided with a feeding port 14, and a crushing pair of rollers is arranged in the feeding port 14. In this embodiment, the crushing pair of rollers includes a first roller 121 and a second roller 122, The first roller 121 and the second roller 122 are rotatably connected with the body 11, and a drive assembly is installed on the body 11. The drive assembly includes a single-phase motor 13 fixed on the body 11, and a main gear 131 coaxially fixedly connected with the first roller 121. The main gear 131 meshes with the slave gear 132 coaxially and fixedly connected with the second roller 122 .

[0039] Bolts on the bottom wall of the body 11 are fixed with a number of support shafts. A support plate 42 fixed on the support shaft is provided below the body 11. A power part is ...

Embodiment 2

[0048] The difference between the second embodiment and the first embodiment is that the attached Figure 4 As shown, a third grinding plate 44 is threaded on the rotating shaft, and the third grinding plate 44 is vertically slidably connected with the second grinding plate 43. The third grinding plate 44 is provided with several grinding holes 45, and the grinding holes 45 and the screening holes 38 Staggered settings.

[0049] The specific implementation process is as follows:

[0050] The bone fragments that are pulverized by the first grinding plate 37 and the second grinding plate 43 fall on the third grinding plate 44, and of course the bone fragments falling from the screening hole 38 on the third grinding plate 44 will also fall to the third grinding plate 44. Three grinding plates 44 on.

[0051] Since the motor 41 drives the rotating shaft to reciprocate, the third grinding plate 44 vertically reciprocates under the limit action of the second grinding plate 43, and...

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Abstract

The invention belongs to the technical field of spine surgery equipment, and provides a composite bone crusher for spine surgery. The composite bone crusher for spine surgery comprises a body, wherein a feeding port is formed in the upper part of the body; a discharging port is formed in the lower part of the body; a crushing roller pair is arranged in the feeding port; a driving assembly used for driving the crushing roller pair is arranged on the body; a conical first grinding plate and a second grinding plate located on the outer side of a crushing plate are arranged in the body; a grinding groove is formed between the first grinding plate and the second grinding plate; a rotating shaft is fixed onto the first grinding plate; a power part is arranged on the body; an output shaft of the power part is coaxially and fixedly connected with the rotating shaft; a cleaning plate located above the first grinding plate is fixed onto the rotating shaft; a gear fixedly connected with the rotating shaft is arranged in the cleaning plate, and is meshed with a rack horizontally and slidably connected with the cleaning plate; an air plate is fixed onto the rack; and a plurality of air holes are formed in the grinding plates. According to the composite bone crusher for spine surgery provided by the invention, multi-stage bone crushing is carried out, crushed bones are cleaned, and residues of the crushed bones in the body are reduced.

Description

technical field [0001] The invention belongs to the technical field of spinal surgery equipment, in particular to a composite bone crusher for spinal surgery. Background technique [0002] Spine, the adult spine consists of 26 vertebrae (including 7 cervical vertebrae, 12 thoracic vertebrae, 5 lumbar vertebrae, 1 sacrum (composed of fusion of 5 sacral vertebrae), and 1 coccyx (composed of 3-4 coccyx fusion)) Connected by ligaments, joints and intervertebral discs, the upper end of the spine supports the skull, connects the hip bone below, attaches the ribs in the middle, and serves as the back wall of the thorax, abdomen and pelvis. The spine has the functions of supporting the trunk, protecting the internal organs, protecting the spinal cord and performing sports . A longitudinal spinal canal is formed inside the spine from top to bottom. [0003] With age or after trauma, it may wear down or degenerate, causing pain. During spinal fusion surgery, bone removed from other ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C4/02B02C7/08B02C7/14B02C23/14A61F2/46
CPCB02C4/02B02C7/08B02C7/14B02C23/14A61F2/4644A61F2002/4645
Inventor 朱庄臣焦伟刘冠杰
Owner THE SECOND AFFILIATED HOSPITAL OF SHANDONG FIRST MEDICAL UNIV
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