Adjustable Disposable Torque Limiting Mount
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Solution Overview
Problem
There is a challenge in developing reliable disposable torque-limiting devices capable of imparting higher torques for larger applications, as existing disposable drivers are typically limited to lower torque values and require frequent recalibration and sterilization, which is cumbersome and impractical for surgical environments.
Innovation Solution
The development of an asymmetrical disposable torque-limiting device with a spring actuator, elastomeric bushing, and adjustable containment interface, which allows for a predetermined torque limit and unidirectional operation, ensuring precise torque application without the need for recalibration or sterilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If reusable torque-limiting drivers are used, then torque precision can be maintained through recalibration, but the device requires constant recalibration and sterilization which is cumbersome and time-consuming
Solution Approach 1:
The patent employs a disposable torque-limiting driver that is discarded after a predetermined number of actuations or when torque limit functionality is no longer required. This eliminates the need for recalibration and sterilization cycles, resolving the contradiction by sacrificing device reusability to gain time efficiency while maintaining torque precision through factory pre-setting
2Ease of operation
If disposable torque-limiting drivers are used, then sterilization and recalibration are eliminated, but the drivers are traditionally limited to low torque applications only
Solution Approach 1:
The patent changes the physical parameters of the disposable driver by incorporating a torque actuator mechanism with a spring-loaded cam follower system. This mechanical design enables the disposable driver to generate and limit high torque values, overcoming the traditional limitation of disposable drivers being restricted to low torque applications only
3Measurement precision
If factory pre-set torque is used in disposable drivers, then torque accuracy is ensured, but the torque value cannot be adjusted for different applications
Solution Approach 1:
The patent incorporates an adjustable torque limiting mechanism that allows the torque value to be dynamically changed. The system includes an adjustment interface that enables modification of the torque limit parameter, transforming the device from a static pre-set configuration to a dynamic adjustable system that maintains accuracy while providing versatility for different applications
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 device provides reliable, high-torque operation over a predetermined number of actuations, eliminating the need for recalibration and sterilization, and allowing for easy tool swapping, enhancing precision and efficiency in surgical applications.
Implementation Method 1
an actuator having a ball shaped end, the actuator configured to apply a predetermined force to the body catch
Implementation Method 2
The actuator is mounted in a containment; the containment is in fluid communication to an adjustment interface
Data Source
AI summary
Disclosed are aspects of exemplars of torque-limiting devices, methods and mechanisms. Exemplary methods may include placing an actuator in a tool containment interface of a handle, the interface being fluidly connected to an adjustment interface and adjustable via a fixation fastener; movably mounting a tool portion with an actuation catch and a work piece engaging region (WER) in the interface; applying sufficient force to the movable mounting to the handle may be via pins, guides and slots. Said catch may be one of a body catch and a lever catch; and, the actuator terminates on one of a ball shaped end that forms an interface with the body catch and a force lever that forms an interface with the lever catch.