Bone Implant Inserter with Elastic Fastening Device
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Solution Overview
Problem
Existing bone fixation systems require additional manipulation after inserter removal, which can complicate the placement and positioning of implants, and often interfere with the final seating of the implant on the bone.
Innovation Solution
A fixation system comprising a fastening device with elastic properties or shape memory, combined with an inserter that pre-assembles with the implant to facilitate placement and maintains the implant in a specific configuration during insertion, allowing for easy transition to its final configuration without additional manipulation post-inserter removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the implant is pre-assembled to the inserter to facilitate placement, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The implant is pre-assembled to the inserter in a first configuration before insertion, facilitating easier placement into the bone. The inserter holds the implant in this preliminary configuration, and after insertion, the implant is manipulated to transition to its final second configuration, eliminating the need for additional manipulation steps after inserter removal.
Solution Approach 2:
The implant is designed with dynamic configurability, allowing it to transition from a first configuration (when attached to the inserter) to a second configuration (after inserter removal). This dynamic shape change enables the implant to adapt to different operational phases: insertion in the first configuration and final positioning in the second configuration.
2Adaptability or versatility
If the implant is designed with multiple configurations to achieve compression or distraction, then the adaptability is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The implant utilizes material properties such as elastic properties or shape memory to enable transition between different configurations. These parameter changes in the material allow the implant to achieve compression or distraction effects while maintaining manufacturability, as the material inherently supports the required shape transformations without demanding extreme manufacturing precision.
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
Enables precise and efficient placement of the implant with minimal interference from the inserter, ensuring accurate positioning and reducing the need for secondary seating or manipulation, while allowing for multiple configurations to achieve desired compression or distraction across bone segments.
Implementation Method 1
The fastening device has elastic properties or other material properties that allow the device to have at least two configurations or configurable to various positions placed on the bone
Implementation Method 2
The ability of the implant to have multiple configurations may be a result of the material properties that have shape memory or super elastic properties
Implementation Method 3
The ability of the implant to have multiple configurations may be a result of the material properties that have shape memory or super elastic properties
Data Source
Figure 1A~1E
Figure 2A~2D
Figure 3~4
AI summary
An assembly used in osteosynthesis comprising a delivery instrument in combination with an implant wherein the delivery instrument releasably holds the implant in a first configuration prior to attachment of the implant to bone. The delivery instrument allows the implant to be affixed to bone before the implant is released from the instrument. And the instrument may comprise guide means for drills, depth gauges, screws, pins, pegs, blades and or drivers which are used or implanted when the implant is releasably attached to the instrument. After the implant is affixed to bone and released from the delivery instrument, the implant assumes at least a second configuration which provides compression and or distraction and or control of special orientation.