Endoscopic Suturing Device with Rotatable Sheath and Needle Transfer
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Solution Overview
Problem
Multi-purpose endoscopes are bulky and lack intrinsic ability to treat and manipulate tissues independently of the medical instruments inserted through their working channels, limiting the functionality of endoscopic suturing devices.
Innovation Solution
An endoscopic medical device with an elongate member featuring a suture channel and a working channel, a rotatable sheath with a needle passer and grasper, allowing the curved needle to be transferred between the passer and grasper positions for efficient suturing, along with a camera and light source for visualization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multi-purpose endoscopes are used to support various medical instruments, then versatility is improved, but device size becomes bulky and intrinsic tissue manipulation ability is lost
Solution Approach 1:
The patent combines multiple functions (suturing, tissue manipulation, visualization) into a single integrated endoscopic device. The elongate member integrates a suture channel, working channel, needle passer, needle grasper, camera, and light source, eliminating the need for separate multi-purpose endoscopes and multiple inserted instruments.
Solution Approach 2:
The endoscopic medical device is designed with universal functionality to perform multiple tasks independently. The device can suture tissues, manipulate target tissues, and provide visualization all through one integrated system, rather than requiring separate specialized instruments inserted through working channels.
2Ease of operation
If endoscopes are made compact for better maneuverability, then ease of operation is improved, but the ability to perform intrinsic tissue treatment is limited
Solution Approach 1:
The patent merges tissue treatment capabilities directly into the compact endoscope structure. The needle passer and needle grasper are integrated into the elongate member, allowing the compact device to independently perform suturing and tissue manipulation without requiring separate treatment instruments.
Solution Approach 2:
The device incorporates dynamic components including a rotatable sheath that can rotate between a first position, second position, and third position, and a needle passer that can move between different positions. This dynamic design allows the compact device to adapt its configuration for different surgical tasks while maintaining maneuverability.
3Ease of operation
If the needle passer and needle grasper are positioned far apart, then tissue manipulation space is improved, but device complexity increases
Solution Approach 1:
The patent utilizes three-dimensional spatial arrangement within the elongate member to position the needle passer and needle grasper at opposite sides of the working channel. This dimensional arrangement creates adequate tissue manipulation space without requiring increased device length or complexity, as the components are distributed in different spatial dimensions rather than along a single linear axis.
Data Source
AI summary
The present disclosure relates generally to the field of medical devices. In particular, the present disclosure relates to single-use endoscopic medical devices with integrated and purpose-built functionality.