Tibial Trial Attachment Instrument Assembly for Knee Surgery
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Solution Overview
Problem
The existing instruments for attaching a tibial insert trial in artificial knee joint replacement operations require laborious preparation and separate handling of multiple components, increasing the complexity and time required for the procedure.
Innovation Solution
A tibial trial attachment instrument assembly that integrates a template, keel punch guide, keel punch, keel punch handle, and tibial insert trial as a single assembly, with connection mechanisms allowing for easy attachment and detachment, reducing the need for separate preparation and handling of each component.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple separate instruments (guide tower, impaction handle, keel punch) are used to attach the tibial insert trial, then the attachment can be performed with separate preparation of each component, but the preparation process becomes laborious and time-consuming
Solution Approach 1:
The patent combines multiple separate instruments (guide tower, impaction handle, keel punch) into a single integrated tibial trial attachment instrument. This merging eliminates the need to prepare and handle multiple separate components, directly reducing preparation time and labor while maintaining the functional capabilities of each original component.
2Adaptability or versatility
If multiple separate instruments are prepared for the attachment process, then each component can be optimized for its specific function, but the overall device complexity increases
Solution Approach 1:
The integrated tibial trial attachment instrument is designed to perform multiple functions that were previously distributed across separate instruments. The single device includes a guide tower portion for alignment, an impaction handle portion for driving, and a keel punch portion for insertion, allowing one universal instrument to replace multiple specialized tools without compromising functional capability.
3Reliability
If separate instruments are used for fixing the keel punch and attaching the tibial bearing component, then each instrument can be independently optimized, but the preparation and handling becomes more laborious
Solution Approach 1:
The patent merges the guide tower, impaction handle, and keel punch into a single integrated instrument, eliminating the need to prepare and coordinate multiple separate instruments. This reduction in preparation effort directly addresses the worsening feature while the integrated design maintains reliable attachment through coordinated functionality of all portions working together as one unit.
Data Source
AI summary
When using an artificial knee joint replacement operation instrument, the amount of labor required to attach a tibial insert trial to a patient is further reduced. An artificial knee joint replacement operation instrument has a tibial trial attachment instrument assembly used in an operation for replacing a patient's knee joint with an artificial knee joint. The tibial trial attachment instrument assembly includes a template to be attached to a tibia, a keel punch guide to be joined to the tibia via the template, a keel punch to be inserted into the tibia through the keel punch guide, a keel punch handle for operating the keel punch, and a tibial insert trial to be placed on the template, the tibial insert trial being separate from the template.