Hollow Central Conductor for Microwave Surgical Instrument Cooling
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Solution Overview
Problem
Existing microwave-irradiating surgery instruments for endoscopic and open surgery face challenges with heat generation during microwave transmission, requiring separate water supply devices that occupy space and limit the diameter of the instrument, complicating surgical procedures.
Innovation Solution
A microwave-irradiating instrument with a central conductor formed into a hollow shape to create a channel, which functions as both a water supply and suction tube, allowing for efficient microwave transmission without compromising irradiation efficiency and reducing the instrument's size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a separate water supply device is installed for cooling during microwave transmission, then cooling efficiency is improved, but device complexity and instrument diameter increase
Solution Approach 1:
The patent combines the water supply function with the central conductor by making the central conductor hollow, allowing water to flow through its interior. This merges the cooling function into the existing structural component, eliminating the need for a separate water supply device and reducing overall device complexity while maintaining effective cooling during microwave transmission
2Temperature
If a separate water supply device is installed for cooling during microwave transmission, then cooling efficiency is improved, but the hole diameter for operation cannot be enlarged
Solution Approach 1:
By integrating the water supply function into the hollow central conductor, the patent eliminates the need for additional space dedicated to separate cooling devices. This allows the overall instrument diameter to be reduced or the working hole diameter to be enlarged, providing more operational space while maintaining effective cooling capability
3Temperature
If a separate water supply device is installed, then cooling function is improved, but ease of operation deteriorates due to increased complexity
Solution Approach 1:
The patent simplifies operation by integrating the cooling function into the central conductor structure itself. This unified design reduces the number of separate components and connections required, making the instrument easier to operate while ensuring adequate cooling during microwave transmission procedures
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 enables efficient coagulation, hemostasis, and suction with reduced size, allowing for improved surgical efficiency and safety by integrating the water supply and suction functions within the instrument's channel, enhancing surgical precision and reducing procedural complexity.
Implementation Method 1
can transmit a microwave with a surface effect, and can solve the above-mentioned problems without influencing the microwave irradiation efficiency
Implementation Method 2
a passage configured to allow water to pass therethrough (water supply device) is separately installed in the forceps or an endoscope
Data Source
AI summary
Microwave-irradiating surgical instruments for endoscopic forceps or scope-assisted surgery forceps that have long lead wires often generate heat even during microwave transmission and a water supply device for cooling is necessary. Accordingly, conventional surgical instruments that irradiated energy such as microwaves had a separate passage for passing water (a water supply device) inside the forceps or endoscope. Due to the space occupied by said water supply device, the image cable or work hole diameter could not be enlarged. Moreover, the presence of the water supply device made surgery difficult. The present invention was completed by the discovery that a microwave-irradiating instrument wherein the central conductor is hollow and forms a channel and said channel is used as a water supply tube, etc. solves the above problems without affecting microwave irradiation efficiency.