Surgical Retraction Adapter for Multi-Handle Compatibility
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Solution Overview
Problem
Existing self-retaining retraction devices are limited in their ability to accommodate different retractor handle dimensions and shapes, and they often require adjustments to apply torque efficiently, which can lead to increased stress on tissues and bones during surgical procedures, and they can interfere with the surgical field.
Innovation Solution
An adapter system with a retractor interface that securely connects to various retractor handles and a self-retaining positioning device interface, allowing for adjustable angles between the retractor and the applied force, reducing stress on tissues and bones, and enabling easy visualization during surgical procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a self-retaining retraction device uses a fixed connection portion shaped for a single retractor handle, then it can securely hold that specific retractor, but it cannot accommodate retractors with different dimensions or shapes
Solution Approach 1:
The adapter serves multiple functions: it connects different retractor handles to the positioning device, provides angular orientation adjustment, and enables both linear and torque application. This multi-functionality resolves the contradiction by making the system adaptable to various retractor types while maintaining secure connection through the standardized adapter interface.
Solution Approach 2:
The adapter acts as an intermediary component between the retractor handle and the positioning device. It mediates the connection by providing a standardized interface that can accommodate different retractor shapes while maintaining reliable attachment to the positioning device, thus resolving the incompatibility between fixed connection designs and diverse retractor geometries.
2Ease of operation
If a self-retaining retraction device applies force in a fixed direction, then it is simple to use, but it cannot optimize torque application when the angle between the retractor and applied force needs to be close to 90 degrees
Solution Approach 1:
The adapter incorporates an adjustable angle mechanism that allows the connection between the retractor and positioning device to be dynamically changed. This enables optimization of torque application by adjusting the angle to接近90 degrees when needed, while maintaining ease of operation through a user-friendly adjustment mechanism that does not complicate the overall device usage.
3Device complexity
If a cord extends from the retraction device to a fixed point at sharp angles, then the device can be compact, but it becomes more difficult to use and may stretch across the surgical field
Solution Approach 1:
The adapter provides angular orientation capability that allows the cord to be routed in different spatial dimensions. Instead of being constrained to sharp angles in a single plane, the adjustable angle mechanism enables the cord to extend more favorably across multiple dimensions, reducing interference with the surgical field while maintaining compact device architecture.
4Adaptability or versatility
If medical personnel manually apply force to hold retractors, then retraction can be adjusted dynamically, but it requires surgical assistants to be present and leads to muscle fatigue during long procedures
Solution Approach 1:
The self-retaining retraction device with the adapter provides self-service functionality by automatically maintaining retraction force without requiring continuous manual intervention. The device holds the retractor in position and applies tension indefinitely once set, eliminating the need for surgical assistants to continuously hold retractors during long procedures while preserving dynamic adjustability through the adapter's angle mechanism.
Data Source
AI summary
An adapter connects a surgical instrument, such as a retractor, with a self-retaining retraction device. The adapter includes a retractor interface sized and shaped to releasably connect with the proximal end of a surgical retractor. The adapter also includes a device interface sized and shaped to releasably connect with the self-retaining device. The adapter allows the same self-retaining device to be used with different retractors. The adapter may also include a joining portion that holds the longitudinal axis of the retractor at a selected angle with respect to the self-retaining device.