Electric Surgical Stapler Handle with Quick-Change Interface
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Solution Overview
Problem
Manual surgical staplers are complex, leading to inaccurate staple lines and are often disposable due to sterilization challenges, limiting their effectiveness and reusability.
Innovation Solution
An electric surgical stapler handle with a linear motor, power transmission mechanism, and quick change interface, featuring a semirigid connection tube and universal joint assembly, allowing for adjustable bending and easy sterilization, enabling accurate and adaptable stapling, anastomosing, and cutting-stapling of tissues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a manual surgical stapler is used, then the device structure is simple, but the staple line accuracy is poor and the device cannot be sterilized for reuse
Solution Approach 1:
The patent replaces the manual mechanical operation system with an electric motor-driven system. The motor provides precise controlled motion to the end effector, eliminating manual manipulation errors and achieving accurate staple lines while maintaining a manageable device structure through automated control.
Solution Approach 2:
The patent designs a universal handle assembly that can be sterilized and reused with multiple end effectors through a quick change interface. This multi-functional design allows the same handle to work with different end effectors for various surgical applications, improving both accuracy and cost-effectiveness through reuse.
2Adaptability or versatility
If a manual surgical stapler is used, then the device is simple to manufacture, but it must be disposable due to sterilization challenges
Solution Approach 1:
The patent divides the surgical stapler into separable modules: a sterilizable handle assembly and disposable or interchangeable end effectors. The handle contains the motor and power transmission mechanisms that can be sterilized and reused, while the end effectors can be quickly changed. This segmentation enables reusability without compromising manufacturing simplicity.
Solution Approach 2:
The patent introduces a quick change interface as an intermediary mechanism between the handle and end effector. This interface includes a release button and corresponding release features that enable rapid attachment and detachment, facilitating easy sterilization of the handle and reuse with different end effectors without complex assembly or disassembly procedures.
3Adaptability or versatility
If the connection tube is made rigid, then the power transmission is stable, but the adaptability to different surgical positions is reduced
Solution Approach 1:
The patent employs a semirigid connection tube that combines flexibility with structural integrity. The tube can bend to adapt to different surgical positions and anatomical contours while maintaining sufficient rigidity to reliably transmit power from the motor to the end effector. This dynamic property allows the connection tube to adjust its shape as needed while preserving power transmission stability.
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 electric surgical stapler handle improves surgical accuracy, reduces costs, enhances reusability, and promotes environmental sustainability by providing a motor-driven, adaptable, and easily sterilizable solution for various surgical applications.
Implementation Method 1
a linear motor, disposed in the casing, configured to supply linear motion
Implementation Method 2
the universal joint assembly comprises a first universal joint, a second universal joint, and a connection rod
Data Source
AI summary
A handle for an electric surgical stapler. The electric surgical stapler includes an end effector. The handle includes a casing, a linear motor, a power transmission mechanism, and a quick change interface. The linear motor is disposed in the casing and configured to supply linear motion. The power transmission mechanism transmits the linear motion from the linear motor to the end effector. The quick change interface is connected to the end effector.