Bendable Medical Motor Drill for Single-Incision Rib Correction
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Solution Overview
Problem
Conventional medical motor drills are unable to adjust their angle after being inserted through a topical incision, limiting their ability to correct multiple rib fractures across the front, lateral, and rear walls of the chest during thoracic surgery, as they can only apply vertical force and require multiple incisions for limited rib correction.
Innovation Solution
A medical motor drill with a bendable drill unit and an angle adjustment mechanism, including a drive force transmission unit and an angle adjustment unit, allowing the drill to be angled relative to the shaft and adjusted from a position distant from the user's manipulation, enabling correction of ribs through a single small incision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a conventional motor drill is used with a single incision, then the incision size is small, but the ability to correct multiple ribs is limited
Solution Approach 1:
The drill unit is designed with a bendable shaft that can dynamically change its angle relative to the main shaft. The angle adjustment unit allows the drill unit to be positioned at different angles (0-180 degrees) to reach ribs at various locations (front, lateral, and rear walls) through a single incision, transforming a static drilling tool into a dynamic one that adapts to different anatomical positions
2Adaptability or versatility
If the drill unit is made bendable with angle adjustment capability, then rib correction versatility is improved, but device complexity increases
Solution Approach 1:
The drill is divided into distinct functional segments: a main shaft, a bendable intermediate shaft, and a drill unit with motor and drill blade. The angle adjustment unit is separated as an independent component that controls the bending of the intermediate shaft. This segmentation allows each part to perform its specific function while maintaining overall system manageability and ease of operation
Data Source
AI summary
Disclosed is a medical motor drill having an angle adjusting function. The medical motor drill includes a main body, a shaft connected to the main body, a drill unit connected to the shaft so as to be bendable relative to the shaft, the drill unit including a motor configured to receive power from the main body and a drill blade configured to be rotated by the motor, a drive force transmission unit configured to bend the drill unit relative to the shaft, and an angle adjustment unit connected to the drive force transmission unit to adjust a bending degree of the drill unit. The medical motor drill has advantages of enabling drilling over a wide range in a state in which a drill manipulation position is fixed and of enabling adjustment in the angle of the drill unit that is located distant from a user manipulation position.