Adjustable Hip Lateralization Member for Arthroscopy Traction Relief
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Solution Overview
Problem
During hip arthroscopy procedures on a fracture table, complications such as peroneal maceration and pudendal nerve palsy can occur due to prolonged traction, and existing devices for hip protection and stabilization do not adequately address the need for a controlled lateralization effect.
Innovation Solution
A device comprising a supporting member and a lateralization member that can be mounted on a fracture table to provide a controlled lateralization effect, with optional cushioning and protection, allowing for adjustable positioning to maintain or vary the lateralization of the hip joint during medical procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If prolonged traction is applied during hip arthroscopy on a fracture table, then the hip and femur can be positioned for surgical access, but complications such as peroneal maceration and pudendal nerve palsy occur
Solution Approach 1:
The patent introduces a lateralization device as an intermediary element between the patient's body and the fracture table. This device includes a lateralization member with a curved surface that contacts the patient's hip region, providing mechanical leverage to laterally displace the hip joint. By using this intermediary device, the surgeon achieves the necessary surgical access and joint distraction without applying prolonged direct traction that would cause nerve damage and skin maceration.
Solution Approach 2:
The patent applies lateralization force in a lateral dimension rather than using traditional vertical or longitudinal traction. The curved surface of the lateralization member is positioned to apply force laterally to the hip joint, creating distraction and separation of the joint surfaces in a direction perpendicular to the patient's long axis. This dimensional change in force application achieves surgical access while avoiding the harmful effects of conventional traction methods.
2Object-affected harmful factors
If existing padding devices are used during traction, then some protection is provided, but they fail to adequately provide and maintain a lateralization effect
Solution Approach 1:
The lateralization device combines multiple functions in a single integrated system. It provides both protective cushioning through its contact surfaces and reliable lateralization through its curved geometric structure. The device simultaneously acts as a protective interface between the patient and the fracture table, and as a mechanical lever to achieve and maintain the lateralization effect needed for surgical access, eliminating the need for separate padding devices that fail to provide adequate lateralization.
Data Source
AI summary
The present invention relates generally to a device and method for providing a lateralization effect such as in a medical procedure. The lateralization device can have a supporting member, which can be adapted to be supported in a fixed position. A lateralization member can be provided to at least partially wrap around the supporting member and be mounted thereto to provide a lateralization effect. The lateralization member can be formed and/or adjusted to provide a variable lateralization. For example, the lateralization member can comprise a cylindrical member with an eccentric cut-out portion adapted to fit over the supporting member. The inter wall of the cut-out portion and the outer wall of the supporting member can be formed with interference fittings so that the lateralization member can rotate in relation to the supporting member to provide a variable lateralization.