Articulating Endoscopic Stapler Angle Adjustment Mechanism

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Solution Overview

Problem

Existing staplers used in minimally-invasive surgical procedures are impractical for changing angles to accommodate wounds in different positions, requiring disassembly and reassembly, which lowers surgical efficiency and increases the risk of improper operation.

Innovation Solution

An articulating endoscopic cutter stapler and universal assembly that allows for convenient angle adjustment and easy assembly/disassembly of components, featuring a sliding reset ring mechanism, adjustable springs, and a rotating shaft to control the anvil assembly and adjust the stapling angle.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the stapler angle is changed to adapt to wounds in different positions, then the adaptability is improved, but the device complexity increases due to disassembly and reassembly requirements

Engineering Contradiction:
Improvestapler angle adjustment capabilityVSAvoidassembly structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The stapler incorporates an articulating mechanism with a rotating shaft that allows the anvil assembly to be dynamically adjusted to different angles during surgery. This dynamic adjustment eliminates the need for complete disassembly and reassembly, resolving the contradiction between adaptability and device complexity.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The stapler is divided into separable components including the anvil assembly, cartridge, and connector that can be independently assembled and disassembled. This segmentation allows for simplified component installation while maintaining angle adjustment capability through the articulating mechanism.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If the stapler is disassembled and reassembled to change angles, then the adaptability is improved, but the loss of time increases due to repeated assembly operations

Engineering Contradiction:
Improvestapler angle adjustment capabilityVSAvoidsurgical operation time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The articulating mechanism with rotating shaft enables real-time angle adjustment during surgical procedures without requiring time-consuming disassembly and reassembly operations, directly addressing the time loss issue while maintaining adaptability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The stapler components are pre-configured with standardized connection interfaces and alignment features that enable rapid assembly when angle changes are needed, reducing the time penalty associated with reconfiguration.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If the components are connected and installed in the general stapler, then the device functionality is achieved, but the device complexity increases making assembly prone to failure

Engineering Contradiction:
Improvestapler operational reliabilityVSAvoidcomponent installation complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The stapler is designed with modular components (anvil assembly, cartridge, connector) that can be assembled independently with standardized interfaces. This segmentation reduces installation complexity and minimizes assembly errors, improving reliability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The articulating mechanism includes self-aligning features and intuitive connection points that guide proper component assembly without requiring complex procedures or specialized training, reducing assembly errors and improving operational reliability.

Inventive Principle:
Principle #25Self-service

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 solution improves the stability and control of the stapler during suturing, extends the range of application by allowing angle adjustment, and enhances surgical efficiency by simplifying component installation and replacement.

Implementation Method 1

adjustable springs are installed on the surfaces at both ends of the slide carriage

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS12232727B2Articulating endoscopic cutter stapler and universal assembly for stapling
Publication Date: 2025.02.25 SUZHOU MEIDONG HUICHENG PRECISION COMPONENTS CO LTD
  • US12232727B2 patent drawing
  • US12232727B2 patent drawing
  • US12232727B2 patent drawing

AI summary

The present disclosure relates to the technical field of medical equipment, and discloses an articulating endoscopic cutter stapler and universal assembly for stapling, comprising a proper, wherein the surface of the proper is slidably connected with a reset ring and formed with a slot, the surface of the reset ring is provided with a sliding pin which is placed into the slot, and a safety pin is arranged at one end of the surface of the proper. The present disclosure can better control the anvil assembly to improve the stability of stapler during suturing of wound and to improve the quality of surgical suturing. The angle of suturing assembly of stapler can also be adjusted to the specific position of the wound, so that the range of application of stapler can be extended.