Clip Applying Mechanism With Main-Shaft Locking During Replacement

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing clip applying mechanisms fail to prevent damage to the end effector when replacing clips of inappropriate size or shape, leading to malfunction and reduced usability.

Innovation Solution

A clip applying mechanism with a main-shaft connecting member and locking mechanism that locks the main-shaft connecting member and housing when a clip is conveyed into the end effector, preventing further clip conveyance and ensuring safe handling during replacement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the clip applying mechanism allows free replacement of clips, then the ease of operation is improved, but the reliability deteriorates due to potential damage to the end effector from improper clip replacement

Engineering Contradiction:
Improveease of clip replacementVSAvoidreliability of end effector
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent applies preliminary anti-action by implementing a locking mechanism that prevents improper clip replacement before damage can occur. The main-shaft connecting member includes a locking structure that engages with the housing to lock the main shaft in position, thereby preventing any subsequent clip conveyance operation after a clip has been conveyed into the end effector. This preliminary prevention ensures that users cannot accidentally damage the end effector by attempting to replace clips improperly, while still allowing easy replacement of clips when the mechanism is in its initial unlocked state.

Inventive Principle:
Principle #9Preliminary anti-action

2Productivity

If the main shaft can move freely to convey clips, then the productivity is improved, but the object-generated harmful factors worsen due to potential damage to the end effector

Engineering Contradiction:
Improveproductivity of clip conveyanceVSAvoiddamage to end effector
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

The patent applies preliminary action by implementing a state recognition mechanism that detects when a clip has been conveyed into the end effector and automatically locks the main shaft in position. This preliminary locking action occurs immediately after successful clip conveyance, preventing any further movement of the main shaft that could cause damage to the end effector. The locking mechanism includes a main-shaft connecting member with a locking structure that engages with the housing, ensuring that the high-speed clip conveyance function is maintained when needed, but automatic protection is activated after each successful operation.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS12533142B2Clip applying mechanism and clip applying apparatus thereof
Publication Date: 2026.01.27 SUZHOU YINGTUKANG MEDICAL TECH CO LTD
  • US12533142B2 patent drawing
  • US12533142B2 patent drawing
  • US12533142B2 patent drawing

AI summary

A clip applying mechanism and a clip applying apparatus thereof are provided. The clip applying mechanism includes a tube body, a main shaft, a clip-cartridge assembly, a clip-pushing assembly and a firing assembly; and further includes: a main-shaft connecting member, sleeved on the main shaft and connected with the main shaft; a housing, configured to accommodate the main shaft and the main-shaft connecting member, the main-shaft connecting member being configured to move relative to the housing in an axial direction of the tube body and in a circumferential direction of the tube body; a first guiding mechanism, arranged between the main-shaft connecting member and the housing, the first guiding mechanism being configured to guide the main-shaft connecting member to move relative to the housing.