Endoscopic Suturing Device for Tissue Perforation Closure
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Solution Overview
Problem
Transluminal procedures face challenges in providing a suitable conduit for endoscopic suturing of tissue perforations, including maintaining sterility, preventing infection, and ensuring reliable closure of openings in internal organs without the need for extensive incisions or complex device manipulation.
Innovation Solution
A medical device with curved passageways and a semi-circular needle allows for controlled and reliable placement of sutures around tissue perforations, using an endoscope with a working channel and tissue grasper to guide the needle through the tissue, ensuring complete closure of the opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional open surgery or laparoscopic surgery is used to close tissue perforations, then reliable closure can be achieved, but abdominal incisions and incision related complications occur
Solution Approach 1:
The patent uses an endoscope as an intermediary tool to deliver suturing devices through natural body orifices (mouth, anus, or vagina) to reach and close tissue perforations in the peritoneal cavity, thereby avoiding abdominal incisions while maintaining closure reliability
Solution Approach 2:
The patent replaces the traditional mechanical surgical approach requiring external incisions with an endoscopic system that uses flexible instruments and suturing devices delivered through natural orifices, substituting the mechanical access pathway while preserving the closure function
2Ease of operation
If transluminal procedures are used to access body cavities, then minimally invasive access is achieved, but providing a suitable conduit and maintaining sterility becomes challenging
Solution Approach 1:
The endoscope serves multiple functions: it provides the access conduit, maintains sterility through its sealed structure, delivers the suturing device, and enables visualization, thereby simplifying the overall system despite the complexity of transluminal procedures
Solution Approach 2:
The suturing device is nested within the endoscope's working channel, and the needle and suture are contained within the suturing device, creating a compact hierarchical structure that facilitates minimally invasive delivery while maintaining sterility
3Ease of operation
If suction or tissue graspers are used to orient tissue for suturing, then tissue can be positioned, but device complexity and manipulation difficulty increase
Solution Approach 1:
The patent combines the tissue orientation function and suturing function into a single integrated device, eliminating the need for separate suction devices or tissue graspers, thereby reducing overall device complexity while maintaining tissue positioning capability
Solution Approach 2:
The suturing device is designed to perform multiple functions including tissue grasping, positioning, and suturing in a single instrument, reducing the number of separate devices needed and simplifying manipulation
Data Source
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AI summary
Medical devices and methods are disclosed for suturing tissue, that may be employed endoscopically and/or laparoscopically, and that offer simple, reliable and controllable placement of suture around a perforation for complete closure thereof. One embodiment of the medical system (20) generally includes an endcap (30) having first (34) and second (36) arms, a needle, a suture (76), and first and second control members (44, 46). The first and second control members are used to pass the needle back -and- forth between the first and second arms.