Mitral Hook Instrument Groove and Markings for Chord Lysis
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Solution Overview
Problem
Current instruments for heart valve repair, particularly for mitral regurgitation, lack efficiency and precision in procedures such as secondary chord lysis, necessitating improved tools to facilitate easier and more effective surgical interventions.
Innovation Solution
An elongated hook-type instrument with a knurled handle, tapered distal end, and an L-shaped hook featuring an elongated groove for scalpel use and metric markings for precise visualization, designed for use in heart valve repair and replacement operations, including secondary chord lysis procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional heart valve repair instruments are used for secondary chord lysis, then the surgical procedure can be performed, but the precision and ease of operation are insufficient
Solution Approach 1:
The instrument is divided into distinct functional segments: a handle for grip, a shaft for reach, a groove for scalpel guidance, and metric markings for measurement. This segmentation allows each part to optimize its specific function, improving both precision and ease of operation during chord lysis procedures
Solution Approach 2:
The elongated groove acts as an intermediary structure that guides the scalpel blade during chord severing. This groove provides a controlled path for the scalpel, ensuring precise cutting while reducing the skill level required for accurate chord lysis, thus improving both precision and ease of operation
2Measurement precision
If traditional mitral hook instruments are used, then basic heart valve repair can be performed, but visualization and measurement precision during lysis procedures are inadequate
Solution Approach 1:
The instrument incorporates metric markings (graduations) along its length that provide visual reference points for measurement and positioning. These markings enhance visualization precision during lysis procedures without adding mechanical complexity to the instrument design
Solution Approach 2:
The instrument comes pre-marked with metric graduations and pre-formed with an elongated groove, allowing the surgeon to immediately use precise measurements and guided cutting without requiring additional setup or complex adjustment mechanisms during the procedure
Data Source
AI summary
A mitral hook instrument for use particularly in heart valve operations. The mitral hook is used in particular for grasping or hooking secondary chords for lysis procedures. The interior surface of the hook has a groove or channel to facilitate use of a scalpel to cut a chord or other member which has been grasped and exposed by the hook. Also, markings are preferably provided on the distal end of the mitral hook instrument in order to assist the surgeon.