Drill Guide Assembly with Segmented Contact Surface for Multi-Size Instruments
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Solution Overview
Problem
Standard single barrel drill guides have a flat, uniform contact surface, limiting them to accommodate only instruments of one size, necessitating multiple instruments and steps for various orthopedic surgical procedures.
Innovation Solution
A drill guide with a recess and channel system featuring multiple contact surfaces, including protrusions and rings, allowing for the accommodation of drills and inserters of varying sizes, facilitating efficient hole drilling and anchor insertion in bones.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a flat, uniform contact surface is used in a standard single barrel drill guide, then the structure is simple and easy to manufacture, but it can only accommodate instruments of one size
Solution Approach 1:
The contact surface is segmented into multiple distinct protrusions (first protrusion, second protrusion, third protrusion) with different geometries. Each protrusion corresponds to a specific instrument size, allowing the single drill guide to accommodate multiple instrument types while maintaining a relatively simple overall structure.
Solution Approach 2:
Different regions of the contact surface are given different local properties through the varying geometries of the protrusions. The first protrusion has a first geometry suitable for first instruments, the second protrusion has a second geometry for second instruments, and the third protrusion has a third geometry for third instruments, enabling size-specific accommodation at different locations.
2Adaptability or versatility
If multiple contact surfaces with different geometries are provided in the drill guide, then multiple instrument sizes can be accommodated, but the device complexity increases
Solution Approach 1:
Multiple contact surfaces with different geometries are merged into a single integrated drill guide structure. The first, second, and third protrusions are formed as part of the same drill guide body, allowing multiple instrument sizes to be accommodated in one device rather than requiring separate drill guides for each instrument type.
Solution Approach 2:
The drill guide is designed with universal multi-functionality to accommodate various instrument sizes through its multiple protrusions. This single drill guide can perform multiple functions by accepting different instruments (first instruments, second instruments, third instruments) corresponding to different protrusion geometries, eliminating the need for multiple specialized drill guides.
3Quantity of substance
If a single drill guide is designed to accommodate multiple instrument sizes, then the number of instruments needed is reduced, but the contact surface structure becomes more complex
Solution Approach 1:
The contact surface is segmented into multiple distinct protrusions (first protrusion, second protrusion, third protrusion) with different geometries. Each protrusion corresponds to a specific instrument size, allowing the single drill guide to accommodate multiple instrument types while maintaining a relatively simple overall structure.
Data Source
AI summary
A drill guide to facilitate drilling a hole into a bone and inserting an anchor. The drill guide includes a handle extending to a proximal end and a guide shaft extending from the handle to a distal end. A recess extends into the handle at the proximal end. The drill guide also includes a channel extending through the recess and into the guide shaft and a contact surface extending from the recess. The contact surface may be a proximal surface on a ring extending circumferentially within the recess. The contact surface may alternatively be a proximal surface on a protrusion extending from and within the recess. For example, the protrusion is a triangular protrusion extending along the recess toward the channel. The contact surface allows for the use of inserters of varying sizes within the channel of the drill guide.