Surgical Punch Tool for Bone Guide Positioning
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Solution Overview
Problem
The positioning of a cut guide in orthopedic surgical procedures, such as total knee replacement, is time-consuming and complicated, affecting the efficiency and accuracy of implant surgeries.
Innovation Solution
A surgical punch tool with a stationary base and movable actuation portion is used to create holes for mounting a multi-cut guide block, eliminating the need for drill guides and reducing the surgical workflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If traditional drill guides and multiple positioning tools are used to position the cut guide, then the positioning can be achieved with conventional equipment, but the surgical procedure becomes time-consuming and complicated
Solution Approach 1:
The patent combines multiple positioning functions into a single integrated punch tool assembly. The punch tool integrates the base component with posts for positioning, punch elements for hole creation, and actuation mechanisms all in one device, eliminating the need for separate drill guides and positioning tools.
Solution Approach 2:
The punch tool serves multiple functions: it positions itself on the bone surface using posts, creates positioning holes using punch elements, and can be actuated through various mechanisms. This multi-functional design replaces multiple specialized tools with one universal device.
2Manufacturing precision
If a stationary base with movable punch elements is used, then the positioning precision is improved, but the device structure becomes more complex
Solution Approach 1:
The punch tool is divided into distinct segments: a stationary base component for positioning, movable punch elements for hole creation, and separate actuation portions. This segmentation allows each component to be optimized for its specific function while maintaining overall precision.
Solution Approach 2:
The punch elements transition from a retracted position to an extended punched position through controlled movement. This dynamic capability allows the tool to maintain a compact form when not in use while delivering precise punching action when activated.
3Productivity
If multiple components are integrated into the punch tool, then the workflow is simplified and operation time is reduced, but the ease of sterilization and maintenance may be affected
Solution Approach 1:
The actuation portions are designed to be separable from the base component, allowing them to be removed for sterilization or replacement. This extraction capability maintains the benefits of integration while enabling easier maintenance and sterilization processing.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The tool enables quicker and more precise placement of the cut guide, leading to reduced operation times and better patient outcomes with improved implant positioning.
Implementation Method 1
the surgical punch tool further includes a spring configured to provide a biasing force opposing movement of the actuation portion towards the base component
Implementation Method 2
the actuation portion comprises an impact face configured to receive an impact force that causes the sharp pins to move from the non-actuated position to the actuated position
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
Surgical punch tools and methods of using the same are disclosed herein. A surgical punch tool may include a stationary base component having a planar bottom side. The planar bottom side may include one or more posts extending therefrom. Each post may include an associated sharp pin. A movable actuation portion may be configured to move each sharp pin from a non-actuated position within the corresponding post to an actuated position extending through the base component and from the corresponding post.