Optical Feedback Electrocautery for Tissue-Specific Hemostasis
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Solution Overview
Problem
Existing surgical instruments for electrocautery struggle with controlling energy output levels appropriately, leading to excessive tissue damage and bleeding during surgeries, particularly in highly vascularized tissues.
Innovation Solution
A surgical device for electrocautery equipped with a surgical instrument that includes an energy transmission unit, an optical unit, and a control unit to determine tissue component information based on response light, adjusting electric energy supply accordingly to minimize tissue damage and promote rapid sealing of blood vessels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electric energy is supplied to cauterize target tissue, then hemostasis is achieved, but tissue damage increases when energy output is not controlled
Solution Approach 1:
The patent implements a feedback control system where the control unit receives real-time information about tissue components (moisture, fat, protein content) and adjusts the electric energy output accordingly. The optical unit measures tissue properties and feeds this data back to the control unit, which then modulates the energy transmission unit to deliver appropriate energy levels, preventing tissue damage while maintaining hemostasis.
Solution Approach 2:
The system dynamically changes the energy output parameter based on measured tissue characteristics. When tissue moisture content, fat content, or protein content is detected, the control unit adjusts the electric energy parameters (amplitude, frequency, duration) to match the specific tissue type, ensuring optimal cauterization效果 while minimizing damage.
2Productivity
If high electric energy is used for electrocautery, then cutting and coagulation effectiveness is improved, but bleeding increases due to excessive tissue damage
Solution Approach 1:
The system adjusts energy parameters dynamically based on tissue composition. For highly vascularized tissues with high moisture content, the control unit reduces energy amplitude and extends treatment duration. For tissues with higher fat or protein content, the system optimizes energy delivery to achieve coagulation without excessive thermal damage that would cause bleeding.
Solution Approach 2:
The control unit employs pulsed or periodic energy delivery rather than continuous high-energy application. The system delivers energy in controlled cycles with adjusted amplitude and duration, allowing thermal diffusion and coagulation to occur progressively, which reduces the risk of sudden tissue damage and subsequent bleeding.
3Speed
If energy output is increased to seal blood vessels rapidly, then hemostasis speed is improved, but tissue damage increases
Solution Approach 1:
The control unit modifies energy delivery parameters based on real-time tissue analysis. When high hemostasis speed is required, the system increases energy amplitude temporarily while maintaining precise control through feedback from the optical unit. The system adjusts frequency and duration parameters to achieve rapid sealing without causing excessive thermal damage to surrounding tissues.
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 effectively controls energy output to match tissue type, reducing tissue damage and promoting efficient hemostasis during surgeries.
Implementation Method 1
at least one energy transmission unit configured to transmit electric energy to a target tissue to cauterize the target tissue
Implementation Method 2
an optical unit configured to irradiate light of a predetermined wavelength band to the target tissue and collect response light from the target tissue; and a control unit configured to determine tissue component information on the target tissue based on a measurement value for the response light
Data Source
AI summary
Disclosed is a surgical device for electrocautery. The device includes: at least one energy transmission unit configured to transmit electric energy to a target tissue to cauterize the target tissue; an optical unit configured to irradiate light of a predetermined wavelength band to the target tissue and collect response light from the target tissue; and a control unit configured to determine tissue component information on the target tissue based on a measurement value for the response light and to control electric energy supplied to the target tissue through the energy transmission unit based on the tissue component information.