Pencil-Grip Wire Driver With Distal Actuator for One-Handed Control
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Solution Overview
Problem
Existing wire drivers require a second hand or finger movement to actuate the gripping mechanism, disrupting the surgeon's grip and causing inconvenience during surgical procedures.
Innovation Solution
A wire driver with a distal gripping actuator and rotating mechanism that allows surgeons to maintain a preferred grip while inserting and releasing wires, featuring a housing with a handpiece connected to a gripping portion and a channel, and a first actuator movable between relaxed and compressed positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the actuator is located away from the distal end of the wire driver, then the surgeon can grip the device, but the surgeon must move fingers from the grasping position to actuate the actuator
Solution Approach 1:
The actuator is positioned at the distal end of the wire driver, perpendicular to the main axis of the device. This spatial arrangement allows the thumb to actuate the actuator while the other fingers maintain the grip on the handle, resolving the contradiction between actuator accessibility and grip stability by utilizing a different spatial dimension for actuator operation.
2Ease of operation
If a second hand is used to actuate the actuator, then the actuator can be operated, but the surgical procedure efficiency decreases
Solution Approach 1:
The wire driver is designed to be operated by a single hand, where the thumb acts as the actuating mechanism and the other fingers provide grip stability. This self-service design eliminates the need for a second hand to assist with actuator operation, thereby maintaining surgical procedure efficiency while enabling actuator operation.
3Device complexity
If the actuator is located away from the distal end, then the device structure is simplified, but wire tip injury risk increases due to unstable grip
Solution Approach 1:
By positioning the actuator at the distal end perpendicular to the main axis, the design maintains grip stability without increasing device complexity. The thumb can easily access and operate the actuator while the other fingers maintain a secure grip on the handle, preventing wire tip injury risk without complicating the device structure.
Data Source
AI summary
A wire driver for inserting a wire into bone. The wire driver includes a housing having proximal and distal ends, with a handpiece extending to the proximal end. The handpiece is connected to a gripping portion, which extends to the distal end. A channel extends through the gripping portion and is connected to a gripping mechanism. A drive mechanism within the handpiece is connected to the channel. The drive mechanism is configured to rotate the channel when actuated by a first actuator positioned on the handpiece (which can be on the distal end of the handpiece). A second actuator is connected to the gripping portion and the gripping mechanism. The second actuator is movable between a relaxed position and a compressed position. The user can operate both first and second actuators with the same handpiece grip. The gripping portion and second actuator are rotatable relative to the housing and first actuator.