Unlocking mechanism for spine orthopaedic surgery and spine orthopaedic device

A technology of unlocking mechanism and orthopedic surgery, applied in the field of medical devices, can solve problems such as low operation efficiency

Pending Publication Date: 2018-12-14
SHANDONG WEIGAO ORTHOPEDIC DEVICE COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the traditional sleeve unlocking mechanism can unlock the sleeve from the pedicle screw, the unlocked sleeve still needs to be taken out by other tools, resulting in low operation efficiency

Method used

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  • Unlocking mechanism for spine orthopaedic surgery and spine orthopaedic device
  • Unlocking mechanism for spine orthopaedic surgery and spine orthopaedic device
  • Unlocking mechanism for spine orthopaedic surgery and spine orthopaedic device

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific embodiments described here are only used to explain the present invention, and do not limit the protection scope of the present invention.

[0027] It should be noted that when an element is referred to as being "fixed on", "disposed on", "fixed on" or "installed on" another element, it can be directly on the other element or there can also be an intervening element . When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. Furthermore, when one element is considered to be "fixed transmission connection" to another element, the two can be fixed in a detachable connection, or can b...

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PUM

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Abstract

The invention discloses an unlocking mechanism for spine orthopaedic surgery and a spine orthopaedic device. The unlocking mechanism includes a hollow guide sleeve, an ejector rod and an elastic piece. The guide sleeve is provided with a mating part at one end thereof, and is provided with a through hole in the side wall thereof. The ejector rod can move in the guide sleeve. The ejector rod is provided with an outward protruding convex part at one end thereof. The ejector rod is provided with an installation slot and a pressing body arranged in the installation slot in a projecting manner. Thepressing body is arranged along the length direction of the ejector rod and at one end of the installation slot. The elastic piece is fixedly arranged in the guide sleeve, and is arranged in the installation slot. The elastic piece is provided with an automatic reset bulge at one end thereof, and the bulge corresponds to the through hole. The unlocking mechanism not only can unlock a sleeve froma pedicle screw, but also can remove a sleeve from the body of a patient. The spine orthopaedic device can simplify the operation process and improve the operation efficiency by using the unlocking mechanism.

Description

technical field [0001] The invention relates to the technical field of medical appliances, in particular to an unlocking mechanism and a spinal orthopedic device applied to spinal orthopedic surgery. Background technique [0002] As we all know, spinal orthopedic surgery is a routine operation in the field of spinal surgery, and it is widely used in severe abnormal curvature of the spine caused by ankylosing spondylitis or long-term improper posture and other bone lesions. In recent years, with the continuous improvement of spinal orthopedic tools and the rise of domestic medical level, the demand for spinal orthopedic surgery has grown rapidly. [0003] At present, spinal orthopedic surgery mainly uses a screw-rod system to physically fix the deformed spine, so as to achieve the purpose of correction, and the correction of the nail position in this operation is particularly important. The current operation method is to cover the pedicle screw with a cylindrical sleeve (als...

Claims

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Application Information

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IPC IPC(8): A61B17/92A61B17/70
CPCA61B17/7062A61B17/7074A61B17/92A61B2017/564
Inventor 邬春晖田康勇丛海宸
Owner SHANDONG WEIGAO ORTHOPEDIC DEVICE COMPANY
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