Vertebral Lamina Support Device Force Distribution

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Solution Overview

Problem

Conventional spinous process devices concentrate force on thinner spinous processes, leading to fractures and cannot be placed between the last lumbar vertebrae and sacral vertebrae due to lack of spinous processes.

Innovation Solution

A vertebral lamina supporting device with radially arranged concave arc surfaces that abut against the vertebral lamina and spinous process, allowing for adjustable support between vertebrae and distributing force to prevent fractures, featuring a sleeve and fixing member for secure positioning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Force

If the conventional spinous process device abuts against the spinous processes, then the supporting force is concentrated on the spinous processes, but this causes fracture of the spinous processes

Engineering Contradiction:

Improvesupporting forceVSAvoidfracture of spinous processes

Core Design Contradiction:

ForceVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a vertebral lamina as an intermediary structure between the supporting device and the spinous process. The device abuts against the stronger vertebral lamina rather than directly against the thin spinous process, thereby distributing the supporting force through a more robust intermediate structure and preventing direct concentration of force on the vulnerable spinous process

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The device is designed to abut against the vertebral lamina in advance before any potential fracture of the spinous process can occur. By establishing support through the lamina first, the device prevents the harmful concentration of force on the spinous process from happening in the first place

Inventive Principle:

Principle #10Preliminary action

2Adaptability or versatility

If the conventional spinous process device is disposed on the spinous processes, then it can provide support, but it cannot be placed between the last lumbar vertebrae and sacral vertebrae due to lack of spinous processes

Engineering Contradiction:

Improveplacement flexibilityVSAvoidsupport reliability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The device is designed to work with the vertebral lamina structure that exists across multiple vertebrae including the lumbar and sacral region, making it universally applicable. By targeting the lamina rather than the spinous process, the device can be placed in locations where spinous processes are absent or inadequate, expanding its versatility while maintaining support reliability through the consistent presence of laminae

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS10076366B2Vertebral lamina supporting device

Publication Date: 2018.09.18 ESSENCE MEDICAL DEVICES CO LTD

AI summary

A vertebral lamina supporting device is provided. The vertebral lamina supporting device includes a first supporting member, a second supporting member and at least one connecting member. The first supporting member includes a first supporting base, in which the first supporting base has a first abutting surface and a first surface opposite to the first abutting surface. The first abutting surface has at least two radially arranged first concave arc portions. The second supporting member is movable relative to the first supporting member. The second supporting member includes a second supporting base, in which the second supporting base has a second abutting surface and a second surface opposite to the second abutting surface. The second abutting surface has at least two radially arranged second concave arc portions. The connecting member is connected between the first supporting member and the second supporting member.