Modular Surgical Needle With Attachable Treatment Modules
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Solution Overview
Problem
Conventional surgical devices require separate instruments for tissue sampling, drug injection, and thermal treatment, leading to increased time, costs, and the risk of foreign substances entering the surgical site during device replacement.
Innovation Solution
A surgical device with a needle device that can be equipped with an aspiration device for tissue sampling, an injection device for drug injection, and an electrode device for thermal treatment, featuring a conductive injection needle with an insulating sleeve and a temperature control system to maintain precise thermal treatment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate surgical devices are used for tissue sampling, drug injection, and thermal treatment, then each treatment can be performed with a dedicated device, but the time and costs required to replace devices are increased and foreign substances may enter the surgical site
Solution Approach 1:
The injection needle is designed as a universal device that can perform multiple functions: tissue sampling (with aspiration device), drug injection (with injection device), and thermal treatment (with electrode device). The needle structure includes a conductive inner needle and insulating outer needle, allowing it to serve as both an injection needle and an electrode for RF thermal treatment, eliminating the need for separate dedicated devices for each treatment type
Solution Approach 2:
The patent combines multiple treatment capabilities into a single integrated needle system. The inner conductive needle and outer insulating needle are merged into one structure, and various treatment devices (aspiration, injection, electrode) can be attached to this unified needle platform, reducing the number of separate surgical devices needed and minimizing device replacement operations
2Reliability
If separate surgical devices are used for different treatments, then each treatment can be performed with a dedicated device, but the costs required to replace devices are increased
Solution Approach 1:
The injection needle serves as a universal platform that can perform tissue sampling, drug injection, and thermal treatment through attachment of different devices. This multi-functional design reduces the total number of separate surgical devices needed from three (separate sampling, injection, and thermal devices) to one integrated needle system with attachable modules
Solution Approach 2:
The needle system is segmented into modular components: an inner conductive needle, an outer insulating needle, and detachable treatment devices (aspiration device, injection device, electrode device). This segmentation allows each module to be independently attached or detached while maintaining a unified base structure, reducing overall device complexity while preserving specialized treatment capabilities
3Adaptability or versatility
If surgical devices are replaced, then additional treatment can be performed, but foreign substances may flow into the surgical site during replacement
Solution Approach 1:
Multiple treatment capabilities are merged into a single needle system that remains in place during treatment transitions. The needle stays inserted in the surgical site while different treatment devices are attached or detached, eliminating the need to withdraw and reinsert separate devices for each treatment type, thereby preventing foreign substance contamination during device replacement
Solution Approach 2:
The needle is inserted into the surgical site once and remains in position throughout all treatment procedures. The attachable treatment devices are connected to the stationary needle without requiring needle reinsertion, ensuring that the surgical site is not exposed to foreign substances during device transitions
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 efficient performance of tissue sampling, drug injection, and thermal treatment without the need for multiple devices, reducing procedural time and costs while preventing foreign substances from entering the surgical site.
Implementation Method 1
a temperature sensor inserted into a hollow of the injection needle; and a sensing cable connecting between the temperature sensor and the control device
Implementation Method 2
a power cable electrically connected to the first site of the injection needle; and a control device applying power to the power cable
Data Source
AI summary
The present invention relates to a surgical device. The surgical device may include: a needle device; an aspiration device, which is attached to or detached from the needle device, for tissue sampling; an injection device, which is attached to or detached from the needle device, for drug injection; and an electrode device, which is attached to or detached from the needle device, for thermal treatment. Therefore, any one of the aspiration device, the injection device, and the electrode device is attached to or detached from the needle device, thereby being capable of performing tissue sampling, drug injection, and thermal treatment. Thus, the time and costs required for tissue sampling, drug injection, and thermal treatment are reduced and foreign substances can be prevented from flowing into a surgical site in advance.