Side-Specific Orthopaedic Instrument Trays for Unilateral Surgery
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Solution Overview
Problem
In orthopaedic joint replacement procedures, particularly revision knee surgeries, existing surgical instrument kits are often wasteful as they include unused instruments for the non-operated limb, consuming resources and increasing sterilization needs due to the inclusion of both right-limb and left-limb specific components in size-based kits, even for unilateral procedures.
Innovation Solution
A surgical instrument system with separate sterilization trays for right-limb and left-limb specific orthopaedic trial components, each tray containing a variety of instruments tailored to specific sizes for either side, ensuring only necessary instruments are included and reducing unnecessary resource consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If size-based kits include both right-limb and left-limb side-specific components, then instrument versatility is improved, but resource waste and sterilization burden increase
Solution Approach 1:
The instrument kit is segmented into separate right-limb specific and left-limb specific components. Each tray contains only the instruments needed for the corresponding limb side, eliminating the waste of including unused opposite-side instruments while maintaining full versatility for each specific procedure type.
Solution Approach 2:
Each instrument tray is customized with local quality specific to the limb side being operated on. The right-limb tray contains right-limb specific instruments, and the left-limb tray contains left-limb specific instruments, ensuring that each location (tray) has the appropriate quality (side-specific instruments) needed for its function.
2Adaptability or versatility
If size-based kits include both right-limb and left-limb side-specific components, then instrument versatility is improved, but sterilization needs increase
Solution Approach 1:
The instrument set is divided into separate right-limb and left-limb trays, each containing only the instruments needed for that specific limb side. This segmentation reduces the total number of instruments requiring sterilization from what would be needed in a complete bilateral kit, thereby reducing sterilization time and resource consumption.
Solution Approach 2:
Instead of sterilizing all instruments in a complete size-based kit (which includes unnecessary opposite-side instruments), the solution applies partial action by sterilizing only the specific tray needed for the upcoming unilateral procedure, eliminating wasted sterilization cycles.
3Ease of manufacture
If reusable surgical instruments are kitted by size irrespective of limb side, then manufacturing simplicity is improved, but operational efficiency deteriorates
Solution Approach 1:
The manufacturing process is segmented into producing right-limb specific instrument trays and left-limb specific instrument trays separately. While this requires two separate kit assemblies instead of one universal kit, it eliminates the operational inefficiency of having to sort through and identify the correct side-specific instruments during surgery, thereby improving overall productivity.
Solution Approach 2:
Each instrument tray is self-identifying and self-contained with all necessary instruments for a specific limb side. The tray design itself provides the information needed to select the correct kit, eliminating the need for external reference or complex assembly decisions, thus improving operational efficiency without significantly complicating manufacturing.
Data Source
AI summary
A surgical instrument system includes a pair of side-specific orthopaedic surgical instrument assemblies. The right-limb side-specific instrument assembly is kitted so as to be devoid of left-limb side-specific instruments and vice versa.