Single-Handed Electrosurgical Instrument with Integrated Pad and Loop Electrodes
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Solution Overview
Problem
Current electrosurgical instruments for soft tissue transection and resection often require two-handed operation, making them cumbersome and difficult to use, especially during procedures like supracervical hysterectomy, where precise and efficient single-handed instruments are needed to minimize bleeding and achieve smooth tissue cutting.
Innovation Solution
A single-handedly operable electrosurgical instrument featuring a loop electrode with an integrated pad electrode that can be selectively transitioned between a deployed and non-deployed configuration, allowing for bipolar electrosurgical energy application, enabling efficient tissue sealing, cauterization, and cutting with a single hand.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If monopolar or bipolar electrosurgical instruments are used for soft tissue transection, then bleeding is reduced and tissue cutting is achieved, but the instruments require two-handed operation making them cumbersome and difficult to use
Solution Approach 1:
The patent combines the loop electrode and pad electrode into a single integrated instrument assembly, where the pad electrode is positioned at the distal end of the shaft and the loop electrode can be deployed from the shaft. This integration allows both electrodes to be manipulated with one hand, eliminating the need for separate two-handed operation of traditional monopolar or bipolar instruments while maintaining the bipolar electrosurgical function for tissue transection and hemostasis
2Productivity
If traditional two-handed electrosurgical instruments are used, then precise tissue cutting is achieved, but procedural time increases and surgical efficiency decreases
Solution Approach 1:
The instrument incorporates a deployable loop electrode that can be selectively extended from or retracted into the shaft. This dynamic configuration allows the surgeon to deploy the loop electrode precisely when needed for tissue engagement and electrosurgical cutting, then retract it when not in use. The spring-loaded deployment mechanism enables rapid one-handed operation, reducing procedural time and improving surgical efficiency compared to static two-handed instruments
3Device complexity
If monopolar electrosurgery with external return pad is used, then tissue cutting is achieved, but the electrical circuit requires external components increasing device complexity
Solution Approach 1:
The instrument integrates both the active loop electrode and the return pad electrode within a single shaft assembly, creating a self-contained bipolar electrosurgical system. This multi-functional design eliminates the need for separate external return pads or complex external circuit connections required by monopolar systems. The instrument can perform both tissue cutting and hemostasis functions using its integrated bipolar configuration, reducing overall device complexity while maintaining electrical circuit adaptability
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 instrument facilitates precise and efficient tissue manipulation and cutting, reducing procedural complexity and time while minimizing tissue damage, as it allows for bipolar energy application with a single hand, enhancing surgical efficiency and reducing the risk of bleeding.
Implementation Method 1
bipolar electrosurgical energy application, enabling efficient tissue sealing, cauterization, and cutting
Implementation Method 2
bipolar electrosurgical energy application
Data Source
AI summary
A bipolar electrosurgical instrument includes a handle portion, a shaft extending from the handle portion, a pad electrode coupled to the distal end of the shaft, and a loop electrode configured to be selectively transitioned from a deployed configuration, wherein the loop electrode extends outwardly from a distal end of the shaft in a manner capable of receiving tissue, to a non-deployed configuration, wherein the loop electrode is disposed proximate to the distal end of the shaft, to treat tissue.