Surgical Impactor Handpiece Directional Control via Motorized Actuators
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Solution Overview
Problem
Current surgical impacting tools face challenges in controlling the direction of impact, particularly in orthopedic procedures, as they often require manual manipulation, leading to unintentional movements and reduced force application due to their weight and awkward orientations, which can cause patient harm and hinder effective cavity formation.
Innovation Solution
A surgical device with a handpiece featuring independent hand-actuated first and second actuators for forward and rearward impacts, respectively, allowing precise control of impact direction without changing the grip or moving the tool, utilizing a motor and Hall effect sensors for directional control and including tactile elements for easy actuation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual hammering or holding the impacting tool is used to control impact direction, then the physician can adjust impacting direction, but the surgical implement may shake or move in unintentional directions causing patient harm and reducing force application
Solution Approach 1:
The patent replaces the manual mechanical control system with an automated motor-driven system. The motor receives signals from a control board to automatically adjust the impacting direction based on sensor input, eliminating the need for the physician to manually hold and redirect the heavy tool, thereby preventing unintentional movements while maintaining precise directional control
Solution Approach 2:
The patent implements a feedback control system where sensors detect the desired impacting direction and transmit signals to the control board, which then adjusts the motor's operation accordingly. This closed-loop feedback mechanism ensures precise and reliable impact direction control without manual intervention
2Adaptability or versatility
If the impacting tool is held at inverted or awkward orientations to reach the implant area, then the surgical implement can be positioned properly, but the tool's heavy weight makes it difficult to move and maintain stability
Solution Approach 1:
The patent replaces manual manipulation with an automated motor-driven system that can be precisely positioned and oriented. The motor receives directional commands from the control board based on sensor input, enabling the heavy tool to be accurately positioned at inverted or awkward orientations without requiring the physician to manually hold and redirect it
Solution Approach 2:
The patent employs a dynamically controllable motor system that can adjust its position and orientation in real-time based on surgical requirements. The motor's ability to respond to control signals allows the tool to be easily repositioned to various orientations including inverted positions, maintaining ease of operation despite the tool's weight
3Adaptability or versatility
If the physician moves the impacting tool relative to the implant area to change impact direction, then the surgical implement can be repositioned, but this causes the implement to shake or move in unintentional directions and hinders cavity formation
Solution Approach 1:
The patent replaces manual tool repositioning with an automated motor-driven system. The motor receives precise directional commands from the control board based on sensor input, enabling accurate adjustment of impact direction without the vibrations and unintentional movements associated with manual manipulation, thereby maintaining high cavity formation accuracy
Solution Approach 2:
The patent uses a feedback control system where sensors detect the required impact direction and the control board adjusts the motor's position and orientation accordingly. This automated feedback mechanism ensures precise impact direction adjustment without the instability and inaccuracy introduced by manual tool movement
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
Enables precise and controlled bidirectional impacting, reducing the risk of unintentional movements and ensuring full force application, thereby improving the accuracy and safety of cavity formation in orthopedic procedures.
Implementation Method 1
utilizing a motor and Hall effect sensors for directional control
Data Source
AI summary
In general, devices, systems, and methods for controlling impact direction of surgical impacting tools are provided. In an exemplary implementation, a handpiece of a surgical impacting tool includes at least one actuator configured to be actuated by a user to control a direction of impacting. The surgical impacting tool handpiece, such as a handpiece of an orthopedic impactor, is configured to drive impacting of the surgical implement relative to bone.