Electrosurgical Tissue Sealing With Real-Time RF Energy Adjustment
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Solution Overview
Problem
Existing electrosurgical instruments face challenges in delivering precise electrical energy for tissue sealing due to user dependence on skill and variability in tissue response, leading to potential thermal damage and necrosis.
Innovation Solution
An electrosurgical system that monitors tissue during sealing and adjusts RF energy generation and delivery in real-time based on factors like tissue type, volume, and pressure, using sensors and controllers to optimize energy parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If monopolar electrosurgical instruments are used to deliver electrical energy to tissue, then surgical tasks can be performed, but patient injuries such as electrical burns may occur due to current density distribution
Solution Approach 1:
The patent replaces monopolar electrosurgical instruments with bipolar instruments that deliver electrical energy through two electrodes at the tissue site, eliminating the need for a separate return electrode and concentrating current delivery where needed without causing burns at distant sites
Solution Approach 2:
The bipolar electrodes are designed to deliver electrical energy locally to the specific tissue area between the two electrodes, creating focused current density at the treatment site while avoiding current flow through other body parts that could cause burns
2Object-affected harmful factors
If bipolar electrosurgical instruments are used to focus electrical energy on tissue, then patient injury risks are reduced, but surgical outcomes remain highly dependent on user skill and visual assessment ability
Solution Approach 1:
The system incorporates sensors that detect tissue characteristics and provide real-time feedback to the control circuit, which automatically adjusts electrical energy parameters based on detected tissue properties, eliminating the need for manual visual assessment and reducing dependence on user skill
Solution Approach 2:
The electrosurgical system performs self-adjustment of energy delivery parameters by automatically detecting tissue properties and modifying its operation accordingly, making the system self-regulating and independent of operator expertise
3Productivity
If high-powered electrical signals are delivered to tissue for short duration, then cutting and sealing effects can be achieved, but thermal tissue damage and necrosis may occur
Solution Approach 1:
The system dynamically adjusts electrical energy parameters in real-time based on detected tissue characteristics and sealing progress, automatically optimizing power delivery to achieve effective tissue sealing while preventing thermal damage through continuous parameter modification
4Adaptability or versatility
If electrical energy parameters are manually adjusted by the user, then some adaptation to tissue variability is possible, but precise control is difficult due to inability to visually assess tissue sealing progress
Solution Approach 1:
The system uses sensors to detect tissue properties and sealing progress, providing real-time feedback that enables the control circuit to precisely adjust energy parameters automatically, achieving both adaptability to tissue variability and precise control without manual intervention
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 system ensures consistent and controlled tissue sealing with reduced thermal damage by automatically adjusting energy delivery, enhancing surgical precision and safety.
Implementation Method 1
Electrosurgical instruments may include graspers, scissors, tweezers, blades, and/or needles that include one or more electrodes. These electrosurgical devices and instruments may be supplied with electrical energy from an electrosurgical generator. The electrical energy can then be used by the electrosurgical instrument to coagulate, fuse, and/or cut tissue.
Implementation Method 2
The electrical energy can then be used by the electrosurgical instrument to coagulate, fuse, and/or cut tissue
Data Source
AI summary
An electrosurgical system is provided and includes an electrosurgical instrument and an electrosurgical generator. The electrosurgical system obtains information about the tissue undergoing a sealing process in order to calculate information about the tissue undergoing the sealing process and, in real-time, modify the RF energy being provided to the electrosurgical instrument from the electrosurgical generator. In this way, the electrosurgical system manages the supply of RF energy to optimally seal different types of tissue. The electrosurgical instrument is configured to seal the tissue using the RF energy.