Surgical Tool Shared Fluid Pathway Clogging Solution
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Solution Overview
Problem
Existing surgical tools face challenges in effectively delivering irrigation and suction to surgical sites due to clogging issues caused by narrow, curving pathways for these functions, which can increase surgical time and frustrate surgeons.
Innovation Solution
A surgical device with a handle and elongate shaft featuring shared suction and irrigation flow paths that extend through a common path, allowing for easy alternation between suction and irrigation to clear obstructions and maintain fluid flow, with valves and actuators to control the flow paths independently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If narrow, curving pathways are used for irrigation and suction in existing surgical tools, then the device can be more compact and easier to maneuver, but clogging occurs more frequently and fluid flow reliability deteriorates
Solution Approach 1:
The device separates irrigation and suction pathways into distinct channels that run independently through the handle and shaft. Each pathway has its own lumen and flow control mechanism, preventing cross-contamination and clogging between the two functions while maintaining device compactness
Solution Approach 2:
The flow paths are configured to extend substantially parallel to the longitudinal axis of the shaft rather than curving extensively. This linear arrangement along the longitudinal dimension reduces turbulent flow and clogging while keeping the device maneuverable through other design features
2Reliability
If separate surgical tools are used for irrigation and suction, then clogging is reduced, but the surgeon's workflow becomes more complex and less efficient
Solution Approach 1:
The device combines multiple flow control functions (irrigation, suction, and potentially other functions) into a single integrated handle assembly. The shared common pathway section allows compact arrangement of control mechanisms while maintaining separate functional pathways, reducing the number of separate tools needed
Solution Approach 2:
The handle design incorporates a universal flow control system that can manage multiple fluid functions through a single interface. The common pathway section serves multiple functions for both irrigation and suction operations, allowing the device to perform multiple surgical tasks with one tool
3Volume of moving object
If irrigation and suction pathways are positioned adjacent to one another, then the device structure is more compact, but clogging occurs more frequently
Solution Approach 1:
The adjacent pathways are segmented into separate lumens within the handle and shaft structure. This segmentation maintains compact device volume while preventing clogging from affecting both pathways simultaneously, as each has independent flow channels
Solution Approach 2:
The common pathway section acts as an intermediary zone where irrigation and suction flows are separated into distinct channels. This intermediary structure allows compact positioning while maintaining flow independence through proper channel separation and valve control
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 reliable delivery of irrigation and suction at surgical sites with reduced clogging, allowing for smoother surgical procedures and faster operation times.
Implementation Method 1
The suction flow path is configured to provide suction therethrough... such that the inner lumen is configured to provide suction therethrough to allow matter to enter an open distal end of the shaft
Implementation Method 2
The irrigation flow path is configured to provide irrigation therethrough... such that the inner lumen is configured to provide irrigation therethrough to allow fluid to exit the open distal end of the shaft
Data Source
AI summary
Surgical tools are provided herein that are configured to apply suction and irrigation at a surgical site during the course of a surgical procedure. A surgical tool can include a handle that has a suction flow path configured to provide suction therethrough and an irrigation flow path configured to provide irrigation therethrough. The suction flow path and the irrigation flow path can share a common path along at least partial lengths thereof. An elongate shaft can extend distally from the handle and can have an inner lumen that is in communication with the suction flow path and the irrigation flow path. The inner lumen can thus be configured to provide suction from the suction flow path to a surgical site to remove matter therefrom and to provide irrigation from the irrigation flow path to the surgical site to provide fluid thereto.