Modular Surgical Stapler Driver for Independent Closing and Firing
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Solution Overview
Problem
Existing surgical staplers lack a modular and efficient mechanism for independent operation of closing and fastener pushing stages, leading to complex structures and increased size, which complicates surgical procedures and increases the risk of injury.
Innovation Solution
A surgical stapler with a detachable end effector and driver mechanisms that allow independent operation of closing and fastener pushing stages, featuring a detachable portion for the end effector and driver assemblies, enabling a simplified structure and reduced size for easier surgical access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a complex driver mechanism is used to control closing and fastener pushing stages, then the surgical stapler can perform multiple functions, but the device size increases and operation becomes more difficult
Solution Approach 1:
The driver mechanism is segmented into a first driver mechanism for closing and a second driver mechanism for fastener pushing. These can be detachably connected or independently used, allowing the system to perform multiple functions while maintaining simplicity for each individual function.
2Adaptability or versatility
If a complex driver mechanism is used to control closing and fastener pushing stages, then the surgical stapler can perform multiple functions, but the stapler size increases
Solution Approach 1:
The driver mechanisms are designed as detachable segments that can be connected when multiple functions are needed and separated when only one function is required, reducing the overall stapler size while maintaining adaptability.
Solution Approach 2:
The first driver mechanism can be configured to perform both closing and fastener pushing functions when the second driver mechanism is detached, allowing a single mechanism to serve multiple purposes and reduce overall device volume.
3Adaptability or versatility
If a complex driver mechanism is used to control closing and fastener pushing stages, then the surgical stapler can perform multiple functions, but ease of operation decreases
Solution Approach 1:
By separating the driver mechanisms into detachable first and second mechanisms, each with a specific function, the operator can choose to use only the required mechanism for each surgical stage, simplifying the control process and improving ease of operation.
4Ease of operation
If a detachable driver mechanism is used to simplify closing and fastener pushing stages, then ease of operation improves, but device complexity increases
Solution Approach 1:
The detachable driver mechanisms are designed with standardized connection interfaces that simplify the overall structure despite the modular design, making the detachment and connection processes straightforward while maintaining ease of operation.
Data Source
AI summary
A surgical stapler, the end effector includes a fastener-cartridge assembly and an anvil; the closing mechanism drives the end effector to be closed; the surgical fastener pushing assembly pushes the surgical fastener out of the fastener-cartridge assembly; in a closing stage, the first driver mechanism is in detachable connection with the closing mechanism to drive the closing mechanism to close the end effector; in a surgical fastener pushing stage after the closing stage, the first driver mechanism is separated from the closing mechanism and drives the surgical fastener pushing assembly to push the surgical fastener out of the fastener-cartridge assembly to suture the target tissue; the articulation mechanism and the rear articulation driver assembly drive the end effector to pivot; the detachable portion is in detachable connection with the main body portion to enable the front articulation driver assembly to be in detachable connection with the rear articulation driver assembly.