Magnetic Heel Cup Insert for Ergonomic Surgical Foot Pedals
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Solution Overview
Problem
Current phacoemulsification foot pedals often require non-ergonomic postures from surgeons, leading to physical discomfort and potential mistakes due to the need to maintain contact and control the pedal, which can result in heel rise and muscle fatigue.
Innovation Solution
A heel cup insert with magnetic attachment that shifts the surgeon's heel forward on the foot pedal treadle, reducing the force required for activation and providing a more ergonomic position, which can be easily attached and removed, and serves as a handle for transporting the pedal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the surgeon maintains contact with the foot pedal to control it, then the foot pedal control is reliable, but the surgeon experiences non-ergonomic posture and physical discomfort
Solution Approach 1:
A heel cup insert is introduced as an intermediary component between the surgeon's heel and the foot pedal treadle. The insert includes a heel-receiving portion that cradles the surgeon's heel and a treadle-contacting portion that interfaces with the pedal mechanism. This intermediary structure redistributes the contact forces and allows the surgeon to maintain control with a more relaxed, ergonomic posture by providing a better-fitting interface that reduces the need for excessive muscle tension.
2Reliability
If the surgeon keeps one foot flexed above the pedal to prevent losing contact, then control precision is maintained, but muscle fatigue and physical discomfort increase
Solution Approach 1:
The heel cup insert changes the physical parameters of the foot-pedal interface by providing a contoured heel-receiving portion that better matches the anatomical shape of the surgeon's heel. This geometric parameter change allows for more effective force transmission with less muscular effort, enabling the surgeon to maintain reliable foot contact without the same degree of muscle tension and fatigue that would occur with a flat or poorly-fitted treadle surface.
3Ease of manufacture
If the foot pedal design is fixed, then manufacturing and maintenance are simple, but ergonomic flexibility is limited
Solution Approach 1:
The foot pedal system is segmented into separate functional components: the main pedal mechanism and the removable heel cup insert. The insert is a standalone component that can be easily attached to and removed from the pedal assembly. This segmentation allows the simple, fixed pedal design to be enhanced with an ergonomic insert that can be manufactured separately and attached through a straightforward interface, thereby improving adaptability without significantly complicating the overall manufacturing process.
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
The heel cup insert enhances surgeon comfort and reduces fatigue by improving ergonomic fit, usability, and reliability, while minimizing heel rise and muscle strain, especially during prolonged procedures.
Implementation Method 1
The heel cup insert may also comprise plurality of magnets that may be located towards the distal and/or proximate end of the heel cup insert to provide a magnetic force.
Data Source
AI summary
The present invention comprises a heel insert for use with a phacoemulsification foot pedal that may shift a surgeon's foot forward on the treadle of a foot pedal to reduce the force required to actuate the foot pedal. The present invention may be easily attachable and removable and may provide a less complicated and alternative foot position for surgeons preferring different treadle mechanics.