Integrated Electrosurgical Probe With Fluid Management
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Solution Overview
Problem
Current surgical tools require multiple instruments for various functions during procedures like total joint arthroplasty, leading to complexity, increased time, and costs.
Innovation Solution
Development of a single electrosurgical device with a probe that integrates multiple functions, including coagulation, cutting, fluid removal, and illumination, allowing for mechanical and electrical connection while managing fluid exchange without electrical shorting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple different tools are used to perform coagulation and cutting, then each function can be performed effectively, but surgical complexity and surgical time increase
Solution Approach 1:
The electrosurgical probe is designed with a single working end that can perform multiple functions including coagulation, cutting, and fluid removal through a single interface with the handpiece. The probe incorporates an electrode for RF current delivery, a suction lumen for fluid aspiration, and an irrigation lumen for fluid delivery, allowing one tool to replace multiple specialized tools.
Solution Approach 2:
The invention merges the functions of coagulation, cutting, and fluid management into a single integrated probe assembly. The handpiece integrates motor drive for the electrode, RF current delivery, vacuum aspiration, and fluid delivery systems into one unified device that operates through a single connector interface.
2Reliability
If multiple different tools are used for various functions, then specific functionalities are achieved, but surgical time increases
Solution Approach 1:
The electrosurgical probe enables surgeons to perform coagulation, cutting, and fluid removal functions with a single tool, eliminating the need to exchange between multiple specialized instruments during surgery. This multi-functional design directly reduces surgical time while maintaining all necessary functional capabilities.
3Quantity of substance
If a single tool system is designed to accommodate various functions, then tool quantity is reduced, but design complexity increases
Solution Approach 1:
The system is segmented into a reusable handpiece containing all the complex electronics, motor drive, and control systems, and a disposable probe containing the working end elements. This segmentation allows the complex design to be concentrated in the handpiece while the simple probe can be easily manufactured and disposed of after use.
Solution Approach 2:
A connector interface serves as an intermediary between the handpiece and probe, managing the complex interactions between mechanical connection, electrical current delivery, fluid exchange, and vacuum aspiration. This intermediary interface simplifies the overall system architecture by providing a standardized connection point.
4Productivity
If vacuum aspiration is used to remove fluids, then tissue debris is effectively removed, but electrical shorting may occur
Solution Approach 1:
The suction lumen is extracted as a separate, dedicated channel within the probe shaft that is physically isolated from the RF electrode and electrical connection paths. This separate vacuum aspiration pathway allows fluid and tissue debris removal without creating electrical short circuits between the suction system and electrical components.
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 integrated device reduces the need for multiple tools, simplifies surgical procedures, decreases surgical time, and lowers costs by eliminating the complexity of multiple instrument interactions.
Implementation Method 1
The interface between the reusable handpiece and the replaceable (usually disposable) probe must be designed to allow mechanical and electrical connection while managing fluid exchange so that the tools may be operated without electrical shorting
Implementation Method 2
lumens within rotatable shafts for the vacuum aspiration of fluids including tissue debris from the working site
Data Source
AI summary
A probe for an electrosurgical device for treating tissue, the probe optionally including any one or combination of: an elongated shaft having a. proximal end, a distal end, and a longitudinal axis; a first electrode selectively extending from the distal end of the shaft; a second electrode extending from the distal end of the shaft, wherein the second electrode is spaced, from the first electrode; and an apron positioned at the distal end, wherein the apron is positioned between the first electrode and the tissue, and wherein the apron is positioned between the second electrode and the tissue.