Surgical Cannula Stabilization via Ball and Socket Locking Mechanism
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Solution Overview
Problem
Conventional kyphoplasty procedures face challenges in stabilizing the cannula during the delivery of an inflatable bone tamp or bone void filler, often requiring an extra pair of hands to maintain proper positioning due to lack of soft tissue and bony anatomy support.
Innovation Solution
A surgical system featuring a device with a ball and socket configuration, including a thumbscrew for locking the cannula in a selected trajectory, allowing single-handed operation by a practitioner to maintain cannula stability during the procedure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a surgical assistant is used to hold the cannula, then the cannula stability is improved, but the device complexity and procedural complexity increase
Solution Approach 1:
The device enables self-stabilization of the cannula through its own integrated components (pivoting member and engaging member) without requiring external assistance. The cannula holder device autonomously maintains cannula position through its mechanical design, eliminating the need for a surgical assistant to manually stabilize the cannula.
Solution Approach 2:
The pivoting member acts as an intermediary between the cannula and the engaging member, providing a mechanical interface that allows the cannula to be held at a selected trajectory. This intermediary component translates the engagement force into stable positional control of the cannula.
2Ease of operation
If the cannula is held manually by a physician, then the positioning flexibility is improved, but the hands-free operation capability deteriorates
Solution Approach 1:
The pivoting member provides dynamic positioning capability, allowing the cannula to be adjusted to different trajectories while maintained in each position. The engaging member can engage at various angles, providing flexibility similar to manual holding while enabling hands-free operation once positioned.
3Measurement precision
If the cannula is stabilized with additional support, then the delivery accuracy is improved, but the ease of operation deteriorates
Solution Approach 1:
The device achieves accurate delivery through its self-stabilizing mechanical design. The pivoting member and engaging member work together to automatically maintain the cannula at the selected trajectory, providing accurate delivery without requiring additional manual support or complex stabilization procedures.
Data Source
AI summary
A device including a first member extending along an axis. The first member includes an inner surface defining a cavity extending through a first surface and an opposite second surface and a side surface extending between the first and second surfaces. The inner surface defines an opening extending that is in communication with the cavity. A pivoting member is disposed in the cavity and includes an inner surface defining a passageway having a second member disposed therein. An engaging member is disposed in the opening. The pivoting member is movable between a first orientation such that the engaging member is spaced apart from the pivoting member and the pivoting member is rotatable to a selected trajectory relative to the longitudinal axis and a second orientation such that the engaging member engages the pivoting member and the second member is fixed in the selected trajectory. Methods of use are disclosed.