Integrated Endoscope Control Lever for Single-Handed Stone Retrieval

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Solution Overview

Problem

Existing endoscope systems require multiple operators to control the endoscope and stone retrieval devices simultaneously, limiting the surgeon's ability to perform procedures independently and increasing the risk of losing stone fragments during retrieval.

Innovation Solution

A medical apparatus with an endoscopic tool featuring first and second members that are longitudinally slidable relative to each other, integrated with a control system that includes a housing and actuation mechanism, allowing for single-handed control of both the endoscope deflection and basket deployment/retrieval through a combined lever mechanism.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple operators are used to control endoscope and stone retrieval devices simultaneously, then the control precision and operational reliability are improved, but the device complexity and operational coordination requirements increase

Engineering Contradiction:
Improvecontrol reliabilityVSAvoidoperational complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the endoscope control lever and basket actuation mechanism into a single integrated control system. The lever includes both a deflection control portion for controlling the endoscope bending section and a basket actuator portion for controlling the basket device, allowing one operator to control both functions simultaneously through a unified mechanical interface.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The control lever is designed as a multi-functional device that performs both endoscope deflection control and basket deployment/retrieval operations. This universal control mechanism eliminates the need for separate control systems and multiple operators, while maintaining full control capabilities for both functions.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Ease of operation

If a single operator controls both endoscope and basket device, then the operational simplicity and independence are improved, but the control precision and coordination accuracy may deteriorate

Engineering Contradiction:
Improveoperational independenceVSAvoidcontrol precision
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The control lever merges endoscope deflection control and basket actuation into a single mechanical interface, allowing the operator to control both functions with one hand while maintaining precise control over each function through dedicated control portions on the lever.

Inventive Principle:
Principle #5Merging (Combining)

3Measurement precision

If separate control systems are used for endoscope and basket device, then the control precision for each function is maintained, but the need for multiple operators and coordination increases device complexity

Engineering Contradiction:
Improvecontrol precisionVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent integrates separate control functions into a unified lever mechanism that maintains distinct control pathways for endoscope deflection and basket actuation. The lever includes a deflection control portion connected to the endoscope bending section and a basket actuator portion connected to the basket device, preserving functional independence while consolidating the control interface.

Inventive Principle:
Principle #5Merging (Combining)

4Reliability

If assistant personnel are required for basket deployment and retrieval, then the operational safety and precision are improved, but the procedural efficiency and surgeon independence deteriorate

Engineering Contradiction:
Improveoperational safetyVSAvoidprocedural efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The integrated control lever enables the surgeon to independently perform all basket deployment and retrieval operations without requiring assistant personnel. The lever's basket actuator portion allows the surgeon to control the basket device directly while maintaining control of the endoscope, eliminating the need for additional operators and improving procedural efficiency.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS11903559B2Surgeon controlled endoscope device and method
Publication Date: 2024.02.20 GYRUS ACMI INC
  • US11903559B2 patent drawing
  • US11903559B2 patent drawing
  • US11903559B2 patent drawing

AI summary

A medical apparatus including an endoscopic tool including first and second members longitudinally slidable relative to each other; and a control connected to a proximal end of the endoscopic tool. The control includes a housing and an actuation mechanism. The actuation mechanism is longitudinally slidably connected to the housing. The actuation mechanism has the first member and/or the second member connected thereto. The housing includes a connector configured to removably connect the housing to a control section of an endoscope.