Multifunctional High-Frequency Electric Knife for ESD
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current endoscopic submucosal dissection (ESD) procedures require frequent instrument changes, leading to prolonged surgery times and increased risks of bleeding and tissue damage due to the lack of integrated cutting, coagulation, and injection functions in existing electrosurgical knives.
Innovation Solution
A multifunctional high-frequency electrosurgical knife with a treatment part featuring an electrode for cutting and injecting liquids, and a clip component for hemostasis, integrated into a single device that allows for simultaneous cutting, coagulation, and injection, reducing the need for frequent instrument changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate instruments are used for cutting, coagulation, and injection during ESD procedures, then each function can be performed with a specialized tool, but the surgery time is prolonged and the complexity of the procedure increases
Solution Approach 1:
The patent combines cutting electrode, coagulation electrode, and injection needle into a single integrated electrosurgical knife. The electrode assembly includes a cutting electrode for incising tissue, a coagulation electrode for hemostasis, and an injection needle for submucosal injection, all integrated into one device that can be operated without changing instruments during the procedure.
Solution Approach 2:
The electrosurgical knife is designed with multi-functional capabilities to perform cutting, coagulation, and injection functions through a single instrument. The device includes a high-frequency output terminal for electrosurgical cutting and coagulation, and a liquid injection terminal for submucosal injection, enabling one instrument to replace multiple specialized tools.
2Reliability
If multiple separate instruments are used for cutting, coagulation, and injection, then each function can be performed with a specialized tool, but the procedure complexity increases and the risk of bleeding and tissue damage rises
Solution Approach 1:
The patent combines cutting electrode, coagulation electrode, and injection needle into a single integrated electrosurgical knife. The electrode assembly includes a cutting electrode for incising tissue, a coagulation electrode for hemostasis, and an injection needle for submucosal injection, all integrated into one device that can be operated without changing instruments during the procedure.
3Ease of operation
If instruments are frequently changed during ESD procedures, then the appropriate tool can be used for each specific task, but the surgery operation time increases and the best time point for hemostasis may be missed
Solution Approach 1:
The electrosurgical knife is designed with multi-functional capabilities to perform cutting, coagulation, and injection functions through a single instrument. The device includes a high-frequency output terminal for electrosurgical cutting and coagulation, and a liquid injection terminal for submucosal injection, enabling one instrument to replace multiple specialized tools.
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 enables efficient and safer ESD procedures by integrating cutting, coagulation, and injection functions, reducing surgery time and minimizing blood loss and tissue damage.
Implementation Method 1
an electrode for cutting tissue... capable of cutting lesioned tissue at high frequency
Implementation Method 2
coagulating the lesioned tissue at high frequency, and cauterizing the lesioned tissue at high temperature
Data Source
AI summary
Provided is a multifunctional high-frequency electric knife, comprising processing portion, sheath portion, and operating portion. The processing portion is provided with an electrode and a clip component; the electrode is provided with a hollow tubular portion; the electrode can be pushed out or retracted relative to far end of the sheath portion; the clip component can be pushed out or retracted relative to far end of the sheath portion; the sheath portion is disposed at near end of the processing portion and comprises a hollow pull rod and a spring tube; and the operating part is located at near end of the sheath portion and comprises a high-frequency joint connected to the electrode by wire, a component driving, by operating line, the electrode to move, a member driving the hollow pull rod to move, and a liquid inlet allowing liquid to flow to the hollow tubular portion of the electrode.