Friction Roller Translation System for Endoscopic Tool Control
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Solution Overview
Problem
Current endoscopic systems require multiple operators to control separate instruments simultaneously, leading to logistical difficulties, increased risk, and prolonged procedure times due to the need for precise coordination during procedures like ureteroscopy, where tools must be manipulated and removed from the body.
Innovation Solution
A medical device with a handle and shaft featuring a translation system that includes a pair of friction rollers actuated by a thumbwheel, allowing a single operator to control the longitudinal movement of tools through the endoscopic device, enabling distal and proximal movement of tools within the body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple operators are used to control separate instruments simultaneously, then tool manipulation capability is improved, but device complexity and coordination difficulty increase
Solution Approach 1:
The patent combines multiple tool control functions into a single operator's hands by integrating a translation system with friction rollers that can manipulate tools through the working channel. The handle assembly includes actuators that directly control tool movement, merging what previously required multiple operators into one controlled interface.
Solution Approach 2:
The translation system with friction rollers serves multiple functions: it can advance tools distally, retract them proximally, and potentially rotate or orient them. This multi-functional mechanism replaces the need for separate operators controlling different instruments, as one operator can perform all manipulations through the unified handle assembly.
2Reliability
If multiple assistants are required for tool insertion and manipulation, then procedural completeness is improved, but procedure time increases
Solution Approach 1:
The translation system enables self-service operation where a single operator can independently perform all tool manipulation tasks without requiring assistance. The friction roller mechanism automatically translates rotational actuator input into precise linear tool movement, allowing one person to complete procedures that previously required coordinated effort from multiple assistants.
3Adaptability or versatility
If separate basket device and laser are used for stone removal, then treatment versatility is improved, but tool damage risk increases
Solution Approach 1:
The patent integrates the capability to hold and manipulate multiple different tools (such as basket devices and lasers) within a single unified handle assembly. The translation system can accommodate different tool types in the working channel, allowing one operator to switch between tools without the coordination issues and damage risks associated with multiple operators handling separate instruments.
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
This solution allows a single operator to perform medical procedures more efficiently and safely by reducing the need for multiple assistants, minimizing tool damage, and enhancing precision in tool manipulation and retrieval within the body.
Implementation Method 1
a pair of friction rollers configured to be actuated by the actuator. The pair of friction rollers may be configured to receive an elongate member between one another, wherein actuation of the actuator may cause the pair of friction rollers to rotate and urge the elongate member to translate
Data Source
AI summary
A medical device may include a handle having an actuator, and a shaft coupled to the handle. The shaft may include a working channel. The medical device also may include a pair of friction rollers configured to be actuated by the actuator. The pair of friction rollers may be configured to receive an elongate member between one another, wherein actuation of the actuator may cause the pair of friction rollers to rotate and urge the elongate member to translate.