Articulating Broach Handle for Minimally Invasive Hip Surgery
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Solution Overview
Problem
Current surgical instruments for preparing the femoral site in hip replacement surgery are inadequate for minimally invasive procedures, requiring larger incisions and causing tissue damage, and lack versatility to accommodate different patient anatomies and surgical approaches.
Innovation Solution
An articulating broach handle with three sections that rotate 360 degrees, allowing for adjustable offset configurations to accommodate left, right, or straight approaches, enabling precise alignment and minimally invasive procedures while reducing tissue damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If traditional broach handles are used for femoral preparation, then the surgical procedure can be completed, but larger incisions are required and tissue damage increases
Solution Approach 1:
The broach handle is divided into three separate sections (proximal section, intermediate section, distal section) that can articulate relative to each other. This segmentation allows the handle to bend and adapt to the surgical approach, enabling minimally invasive procedures while maintaining full functionality for femoral preparation.
Solution Approach 2:
The handle incorporates articulating joints between sections that allow dynamic adjustment of the handle's configuration. The sections can rotate and bend to accommodate different surgical approaches and patient anatomies, providing the flexibility needed for minimally invasive surgery while maintaining ease of operation.
2Adaptability or versatility
If fixed configuration broach handles are used, then the device structure is simple, but versatility to accommodate different patient anatomies and surgical approaches is limited
Solution Approach 1:
By dividing the handle into three articulating sections, the device achieves versatility to accommodate different patient anatomies and surgical approaches. Each section can be positioned independently, allowing the handle to adapt to various configurations without requiring multiple separate instruments.
Solution Approach 2:
The articulating handle design provides universal applicability across different surgical scenarios. The same handle can be configured for various surgical approaches (anterior, lateral, posterior) and adapted to different patient anatomies, replacing the need for multiple specialized instruments.
3Manufacturing precision
If non-articulating broach handles are used, then the manufacturing process is simpler, but precise alignment and adjustment for different surgical approaches cannot be achieved
Solution Approach 1:
The handle is manufactured as three separate sections with standardized articulating interfaces. This segmentation allows for precise alignment through the articulating joints while simplifying manufacturing, as each section can be fabricated independently and then assembled with precise mechanical connections.
Solution Approach 2:
The articulating joints provide dynamic alignment capability, allowing the handle sections to be precisely positioned relative to each other during surgery. This mechanical articulation system achieves high alignment precision through controlled rotation and bending of the sections.
Data Source
AI summary
A surgical instrument for releasably connecting to a surgical tool, having three main sections that are able to articulate 360 degrees in 60-degree increments. The articulation of the sections allows for the distal end of the surgical instrument to be spatially offset from the proximal end, yet maintain parallel longitudinal axes. Varying surgical tools can be connected to the surgical instrument via an adapter.