Resilient Arm Drill Bit for Secure Surgical Attachment
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Solution Overview
Problem
Conventional surgical drill bits and handheld surgical instruments lack efficient mechanisms for secure attachment and easy removal, leading to potential handling and operational challenges during medical procedures.
Innovation Solution
A drill bit design featuring a shank with a cutting tip portion, an interface with outermost drive portions, and a resilient arm that moves between two positions to facilitate secure attachment and easy removal from a surgical instrument, utilizing a tip protector for safe handling and a release mechanism for detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional drill bit attachment mechanism is used, then the drill bit can be securely held during operation, but the drill bit is difficult to remove and replace quickly
Solution Approach 1:
The resilient arm is designed to be movable between a first position (extended outward) and a second position (retracted inward), allowing the attachment mechanism to dynamically adapt between secure holding and easy release states. This dynamic movement resolves the contradiction by providing both secure attachment during operation and easy removal when needed.
Solution Approach 2:
The resilient arm changes its positional parameter between two distinct states: extended outward to engage with the drive portion for secure attachment, and retracted inward to disengage for easy removal. This parameter change enables the mechanism to satisfy both contradictory requirements at different operational stages.
2Reliability
If the resilient arm is positioned to maximize retention force, then secure attachment is achieved, but the arm distance from the axis becomes too large affecting interface alignment
Solution Approach 1:
The resilient arm's position is dynamically optimized: in the first position it extends outward to provide maximum retention force through engagement with the drive portion, while in the second position it retracts to achieve proper interface alignment. This dynamic positioning resolves the contradiction between retention force and alignment precision.
Solution Approach 2:
The resilient arm is pre-positioned in the first position during attachment to ensure maximum retention force is available, then transitions to the second position to achieve precise interface alignment. This preliminary action ensures both retention and alignment requirements are met in sequence.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances secure attachment and easy removal of the drill bit from the surgical instrument, improving handling safety and operational efficiency during medical procedures.
Implementation Method 1
a resilient arm extending from the proximal end of the shank to an arm end. The resilient arm may comprise an outer arm surface facing away from the axis, and a retention surface facing toward the distal end of the shank
Data Source
AI summary
A drill bit comprises a shank extending along an axis and an interface comprising at least one outermost drive portion spaced at a first interface distance from the axis. The drill bit further comprises a resilient arm extending from a proximal end of the shank. The resilient arm comprises an outer arm surface facing away from the axis and a retention surface facing toward a distal end of the shank. The retention surface may be radially aligned about the axis with respect to the outermost drive portion. The resilient arm is movable between: a first position where the outer arm surface is spaced from the axis at a first arm distance greater than the first interface distance, and a second position where the outer arm surface is spaced from the axis at a second arm distance less than or equal to the first interface distance.