Endoscopic Suturing Arms With Switchable Needle Coupling
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Solution Overview
Problem
Current technologies face difficulties in suturing fibrotic tissues or wounds larger than 2 cm effectively, especially during gastrointestinal surgeries, as they struggle to achieve hemostasis and wound closure.
Innovation Solution
An endoscopic suture device with a pivotally connected first and second arm, a needle between them, and a control mechanism to switch between single and dual arm connections, allowing efficient suturing of large wounds and fibrotic tissues using an endoscope.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single medical device is used for suturing, then the device structure remains simple, but it cannot effectively suture fibrotic tissues or wounds larger than 2 cm
Solution Approach 1:
The needle is divided into two separate ends that can be independently controlled by the first and second arms. This segmentation allows each arm to independently manipulate one end of the needle, enabling complex suturing motions and achieving effective suturing of large wounds and fibrotic tissues while maintaining reasonable device structure
Solution Approach 2:
The connection between the needle ends and arms is made dynamic rather than fixed. The needle ends can be selectively connected to or disconnected from the arms, allowing the device to adapt its configuration based on the suturing requirements. This dynamic connection enables the device to handle both simple and complex suturing tasks effectively
2Ease of operation
If the needle ends are fixed to both arms, then the device structure is simple, but the operation flexibility is reduced
Solution Approach 1:
The connection between needle ends and arms is designed to be dynamically changeable. The needle ends can be selectively connected to or disconnected from the arms during operation, providing operational flexibility. This dynamic connection mechanism allows the operator to adjust the device configuration based on the specific suturing task without significantly increasing device complexity
3Productivity
If both needle ends are connected to arms simultaneously, then suturing efficiency is improved, but the risk of tissue damage increases
Solution Approach 1:
The device incorporates feedback control through independent arm manipulation. Each arm can independently control one end of the needle, allowing real-time adjustment of needle position and orientation. This feedback mechanism enables precise control during suturing, improving efficiency while reducing the risk of tissue damage through continuous monitoring and adjustment
Data Source
AI summary
An endoscope device including an endoscope body, a suture device, and a needle. The endoscope body has a proximal portion and a distal portion opposite each other and includes a working channel. The suture device includes a first arm and a second arm opposite each other. The working channel connects the proximal portion and the distal portion. The first arm and the second arm extend toward a distal direction. At least one of the first arm and the second arm are pivotally connected to the distal portion and can be opened or closed with respect to the other. The operation method thereof is also provided.