Knee Joint Multi-Use Instrument With Detent Receptacle Locking
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Solution Overview
Problem
Current orthopedic procedures for knee arthroplasties face challenges in efficiently and reliably manipulating various tools and prostheses, leading to increased surgical time and costs due to the need for multiple instruments and components.
Innovation Solution
A multi-use instrument with a receptacle and a detent mechanism, actuated by a collar and plunger, allows for secure grasping and manipulation of multiple components, including cut guides, spacers, and prostheses, facilitating their insertion and removal during surgical procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple dedicated instruments are used for different components, then reliability of component manipulation is improved, but device complexity and surgical time increase
Solution Approach 1:
The instrument body is designed with a universal receptacle that can accommodate multiple different components including cut guides, spacers, and prostheses through a single standardized interface, eliminating the need for multiple dedicated instruments while maintaining secure manipulation of each component type
2Reliability
If multiple dedicated instruments are used for different components, then component-specific manipulation is improved, but loss of time during surgical procedure increases
Solution Approach 1:
The standardized receptacle design allows rapid exchange between different components without requiring instrument changes, significantly reducing surgical time while maintaining secure manipulation through the consistent detent engagement mechanism
Solution Approach 2:
The detent mechanism provides dynamic locking and unlocking capabilities, allowing quick attachment and detachment of components during the surgical procedure, thereby reducing the time required for component manipulation while ensuring secure holding during use
3Reliability
If a detent mechanism is used to secure components, then reliability of component holding is improved, but device complexity increases
Solution Approach 1:
The detent mechanism is designed to automatically engage with the component upon insertion into the receptacle without requiring manual intervention, providing secure holding through self-actuating spring-loaded detents that simplify the overall instrument structure while maintaining reliability
Data Source
AI summary
Apparatuses and systems including an instrument for manipulating components within a knee joint of a patient are disclosed. Such manipulation can include inserting and/or removing such components to or from a bone of the knee joint. The instrument can include a handle, a body, a plunger, a detent and a collar. The handle can have a proximal end and a distal end and a longitudinal extent between the proximal end and the distal end. The body can be coupled to the handle and can extend distal of the distal end. The body can define a receptacle therein having an opening at a distal end portion of the instrument. The plunger can be moveably disposed within the body and can be moveable between a first position and a second position. The detent can be moveable by the plunger, such that with the plunger in the first position at least a portion of the detent can extend into the receptacle and with the plunger in the second position the detent can be recessed from the receptacle. The collar can be disposed about at least a portion of the body and can be moveable relative to the body to operatively actuate the plunger from the first position to the second position.