Surgical Anchor Driver With Resistance Element
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Solution Overview
Problem
Traditional methods for anchoring a tendon to bone require multiple tools, leading to prolonged procedures and increased costs, and can result in tendon rebound and anchor displacement, causing damage and prolonged healing.
Innovation Solution
A surgical tool with a driver tool and guidewire system that includes a resistance element, allowing the guidewire to overcome a bias force and securely seat the anchor in the bone, reducing the likelihood of tendon rebound and anchor displacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional procedures use multiple tools for anchoring tendon to bone, then the anchoring can be achieved, but the procedure time is prolonged and costs increase
Solution Approach 1:
The patent combines multiple traditional tools (tendon fork, anchor delivery device, driver) into a single integrated surgical tool. The tool includes a handle with resistance element, elongate shaft with anchor component retainer, and integration mechanism that unifies these previously separate functions, thereby reducing procedure time while maintaining anchoring effectiveness
Solution Approach 2:
The surgical tool is designed with multi-functionality to perform multiple operations: the handle provides resistance during driving, the elongate shaft delivers the anchor, and the integration mechanism secures components. This universal tool replaces multiple specialized tools, reducing procedural steps and time
2Reliability
If traditional procedures deliver anchor into bone hole, then tendon can be anchored, but tendon tension causes rebound effect and anchor displacement
Solution Approach 1:
The resistance element in the handle is configured to provide preliminary counter-resistance to the driving force, preventing excessive force transmission that could cause anchor displacement. This preliminary anti-action compensates for tendon rebound effects during the anchoring process
Solution Approach 2:
The resistance element acts as an intermediary between the driver and the anchor, mediating the force transmission. It provides controlled resistance that prevents direct transmission of excessive driving force to the anchor, thereby preventing displacement while still enabling secure anchoring
3Reliability
If traditional procedures use numerous tools, then anchoring function can be achieved, but device complexity increases
Solution Approach 1:
The patent merges multiple separate tools into one integrated surgical instrument. The handle, elongate shaft, anchor component retainer, and resistance element are combined into a single device that performs functions previously requiring separate tools, thereby reducing device complexity while maintaining anchoring functionality
Solution Approach 2:
The integrated surgical tool is designed with universal multi-functionality to perform anchoring, delivery, and driving operations. This eliminates the need for multiple specialized tools, simplifying the overall device complexity while preserving all necessary anchoring functions
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 effectively secures the anchor in the bone, reducing the risk of tendon rebound and anchor displacement, thereby minimizing damage and promoting faster healing without the need for additional tools or specialized training.
Implementation Method 1
A force required to cause the resistance element to yield is greater than a force required to drive the anchor into the bone
Data Source
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AI summary
In general, devices, systems, and methods for driving an anchor into bone are provided. In one embodiment, a surgical tool is provided that includes a driver tool with a handle and an elongate shaft. A resistance element is disposed within the handle. An inner portion of an anchor is retained on a distal end of the elongate shaft, and a guidewire extends between the resistance element and an outer portion of the anchor that is in bone. As force is applied distally to the handle, the guidewire pushes the anchor into the bone before overcoming force of the resistance element and thereby allowing the inner portion of the anchor to be driven into the outer portion of the anchor.