Pneumatic Osteotome Blade Actuation for Surgical Precision
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing osteotomes require significant force from surgeons to operate, leading to fatigue, potential swinging motions, and reduced accuracy and safety during surgery due to the need to overcome resistive forces, which prolongs surgical procedures.
Innovation Solution
A surgical device with a pneumatic propelling system that allows for controlled sliding of blades using a trigger mechanism, reducing the force required to operate the osteotome and minimizing unwanted motions, while enabling adjustable speed and force settings for precise tissue removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a surgeon directly operates the osteotome blades by forcing levers against each other, then the osteotome can be controlled, but the surgeon must exert remarkable force which causes fatigue and reduces accuracy
Solution Approach 1:
The patent replaces the direct mechanical lever system with a pneumatic system. A pneumatic cylinder propels the movable blade, substituting the surgeon's manual mechanical force with automated pneumatic actuation. This eliminates the need for the surgeon to exert remarkable force while maintaining precise control over blade movement, thereby resolving the contradiction between ease of operation and surgical accuracy.
Solution Approach 2:
The patent introduces a pneumatic cylinder as an intermediary between the surgeon's control input and the blade movement. The surgeon operates a control mechanism that activates the pneumatic system, which then translates this into controlled blade motion. This intermediary system amplifies and refines the surgeon's input, reducing physical effort while enhancing precision and control.
2Productivity
If the surgeon exerts force to overcome the resistive element, then the blades can be closed to remove tissue, but this causes swinging motions and prolongs surgical time
Solution Approach 1:
The pneumatic system replaces the surgeon's manual force application, eliminating swinging motions caused by human effort. The pneumatic cylinder provides controlled, steady force to close the blades without the instability introduced by manual lever manipulation, thereby improving both surgical efficiency and safety.
Solution Approach 2:
The pneumatic system operates autonomously once activated by the surgeon's control input. The system self-regulates the blade closing action without requiring continuous surgeon intervention or force application, reducing surgical time and minimizing the risk of accidental movements that could compromise safety.
3Duration of action of moving object
If the surgeon continuously operates the osteotome during surgery, then tissue removal can proceed, but the repeated exertion of force tires the surgeon's limb
Solution Approach 1:
The pneumatic system assumes the role of continuous force application, allowing the surgical procedure to continue without surgeon fatigue. The automated system can maintain consistent operation throughout the procedure, enabling longer duration surgeries without compromising the surgeon's physical condition or operational ease.
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 device enhances surgical accuracy, safety, and efficiency by allowing the surgeon to focus on the procedure without exerting excessive force, reducing fatigue, and minimizing the risk of accidents, while enabling precise control over blade movement and force application.
Implementation Method 1
said propelling means being pneumatic and comprising a cylinder-piston system (7, 7') and a transmission member (8) rotatably coupled to a stem (71) of said piston at respective ends
Data Source
AI summary
Osteotome for the removal of bone and of bone tumors, as well as of ligaments and fibrocartilagineous tissue, during surgery, comprising a pair of blades slidably coupled so that respective distal ends thereof be closable the one against the other for the removal of a bone fragment, pneumatic propelling means for the blades, and a trigger for the operation of the propelling means by a user.