Pneumatic Bone Fixation Device for Rapid Insertion
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Solution Overview
Problem
Existing methods for inserting fixation elements into bone fractures, such as Kirschner wires or intramedullary nails, often face difficulties in achieving rapid and effective contact between bone fragments, hindering efficient fracture healing.
Innovation Solution
A pneumatic implanting device that uses a chamber, barrel, and triggering mechanism to propel fasteners or fixation elements into bone tissue using propellant gas, facilitating quick and effective insertion of elements like Kirschner wires or intramedullary nails into the medullary canal or directly into bone fragments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If manual insertion methods are used to insert fixation elements into bone, then the procedure is simple to perform, but the insertion speed is slow and sufficient force cannot be achieved rapidly
Solution Approach 1:
The patent employs a pneumatic propulsion system where compressed gas is introduced into a chamber to rapidly drive fixation elements into bone. The gas pressure generates sufficient force for quick insertion, resolving the contradiction between insertion speed and device complexity by using fluid pressure instead of complex mechanical actuation systems.
Solution Approach 2:
The patent replaces traditional manual mechanical insertion with a gas-pressure-driven system. The triggering mechanism releases propellant gas that propels the fixation element through a barrel into the bone, substituting complex manual manipulation with a simpler pneumatic mechanism that achieves both speed and sufficient insertion force.
2Reliability
If traditional manual insertion methods are used, then the device structure is simple, but the ability to make effective contact between bone fragments is insufficient
Solution Approach 1:
The pneumatic system generates controlled gas pressure that reliably drives fixation elements into bone with sufficient force to ensure effective contact between bone fragments. The chamber and barrel configuration ensures consistent delivery, improving fixation reliability while maintaining relatively simple device structure through the use of pneumatic rather than complex mechanical actuation.
3Productivity
If rapid insertion of fixation elements is achieved, then fracture healing efficiency is improved, but the force required for insertion increases
Solution Approach 1:
The pneumatic propulsion system converts gas pressure into directed force that rapidly drives fixation elements into bone. The compressed gas stored in the chamber provides the necessary force for quick insertion, achieving high productivity while the force is delivered in a controlled manner through the pneumatic mechanism rather than requiring excessive manual force.
Solution Approach 2:
The system changes the physical state of the propellant from compressed gas to expanding gas upon release, generating the high force needed for rapid insertion. This parameter change allows the device to deliver sufficient insertion force quickly while maintaining a compact structure, improving fracture fixation efficiency without requiring proportionally higher force input.
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 rapid and efficient fixation of bone fragments, enhancing fracture healing by ensuring proper alignment and immobilization of bone fragments with the use of pneumatic propulsion, which can be more effective than traditional manual insertion methods.
Implementation Method 1
a triggering mechanism for releasing propellant from said propulsion source into said chamber and charging said chamber in order to propel said fastener or fixation element from said chamber through said barrel
Data Source
AI summary
A implanting device for driving a fastener or fixation element into bone is described. Also described are methods for using a implanting device for driving a fastener or fixation element into bone and a kit comprising a pneumatic implanting device for driving a fastener or fixation element into bone.