Remote-Controlled Bone Injection Device with Stepper Motor Drive
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Solution Overview
Problem
Existing medical devices for injecting bone materials during vertebroplasty require operators to be close to radiation equipment, increasing the risk of radiation exposure and misoperation due to the need for direct manual control during the injection process.
Innovation Solution
A remote-controlled injection device with a coaxial stepper motor and injector system, allowing for remote operation and control of the injection process, featuring a base, injector holder, and handle joint connections that enable precise control and safety from a distance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If operators manually control the injector close to the radioexamination equipment, then the injection operation can be performed with direct monitoring, but the operators are exposed to radiation and risk misoperation
Solution Approach 1:
The patent introduces a remote control system as an intermediary between the operator and the injector. The operator controls the injector remotely through a control device that communicates with the injector via transmission signals, allowing the operator to remain away from the radiation zone while maintaining control over the injection process
Solution Approach 2:
The patent replaces the traditional mechanical direct-handling system with an automated remote control system. The injector is equipped with a motor drive mechanism that can be controlled remotely, substituting the manual mechanical operation with an automated system that reduces radiation exposure and improves precision
2Ease of operation
If operators manually inject bone materials, then the injection process can be performed, but the risk of misoperation increases due to the need for close proximity to monitoring equipment
Solution Approach 1:
The injector is designed with automated control capabilities that allow it to perform the injection process with minimal human intervention. The system can automatically control the injection parameters, speed, and dosage based on pre-programmed settings or real-time feedback, reducing the risk of human error
Solution Approach 2:
The patent incorporates a feedback mechanism where the control device receives information about the injection process status and adjusts control signals accordingly. This closed-loop control system allows for real-time monitoring and adjustment, improving operation accuracy and preventing misoperation
3Object-affected harmful factors
If a remote control system is implemented, then operators can be away from radiation sources, but the device complexity increases
Solution Approach 1:
The control device is designed to perform multiple functions: it can control the motor drive, monitor injection parameters, adjust injection speed, and manage dosage. By integrating these functions into a single universal control system, the patent reduces the need for multiple separate devices, thereby managing complexity while achieving remote operation
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 accurate and safe injection of bone materials by allowing operators to be away from radiation sources, reducing the risk of misoperation and enhancing surgical quality through real-time control and dose management.
Implementation Method 1
a rotational handle connects with the handle joint which connects with dynamical joint, and the dynamical joint connects with the projecting shaft of stepper motor which is coaxial with the precession handspike
Data Source
Figure 1~3
AI summary
The present invention relates to two technical embodiments of a remote-controlled injection device for injecting bone materials into centrum, which include an injector with a piston and a precession handspike or slip handspike, a rotational handle or driving handle is fixed at one end of the precession handspike or slip handspike, there is a base in the two embodiment, and an injector holder is fixed at one end of the base, the said injector is fastened in the injector holder with injector fixed knob by bolt, the said rotational handle or driving handle connects to the handle joint, and there is a fast disassembled connection between handle joint and dynamic joint, the dynamic joint connects with the stepper motor or linear stepper motor, and the projecting shaft of stepper motor or linear stepper motor is coaxial with precession handspike or slip handspike.