Fascial Closure Device with Needle Guide and Suture Release
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Solution Overview
Problem
Conventional surgical techniques for closing fascial defects during laparoscopic procedures are cumbersome, require specialized and costly equipment, and pose risks of injury to intra-abdominal organs due to the difficulty in accurately positioning instruments with limited access.
Innovation Solution
A novel fascial closure device with a closed housing for the needle, oblique angle insertion, and a needle guide to ensure proper rotational orientation, allowing for easy and accurate suturing without exposing the needle tip to the abdominal cavity, and a suture release mechanism for inserting multiple sutures without removing the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional curved needle techniques are used to close fascial defects, then closure can be achieved, but the procedure becomes extremely difficult and time-consuming with high risk of injury to intra-abdominal organs
Solution Approach 1:
The patent introduces a specialized suturing device with a long shaft and curved needle that acts as an intermediary tool between the surgeon and the fascial defect. The device includes a shaft extending into the abdominal cavity with a needle positioned at its distal end, allowing the surgeon to suture fascial defects from outside the body while the shaft serves as a protective intermediary that guides the needle through the defect without requiring the surgeon to manually manipulate instruments inside the cavity. This resolves the contradiction by making the procedure easier to perform while maintaining safety through the guiding shaft structure.
Solution Approach 2:
The suturing device is segmented into distinct functional components: a handle for external manipulation, a long shaft that extends into the abdominal cavity, a curved needle for suturing, and a suture strand. This segmentation allows each component to perform its specific function independently - the shaft provides structural support and guidance, the needle performs the cutting and stitching, and the handle provides control - thereby simplifying the overall operation while ensuring safety through proper functional separation.
2Manufacturing precision
If specialized equipment is used for fascial closure, then closure precision can be improved, but the cost and device complexity increase significantly
Solution Approach 1:
The suturing device is designed as a multi-functional instrument that can perform multiple surgical tasks: it can suture fascial defects, manipulate tissues along the shaft, and maintain structural guidance throughout the procedure. The device's shaft can receive various instruments and provides a universal platform for different surgical maneuvers, reducing the need for multiple specialized tools while maintaining precision through its consistent structural guidance system.
3Ease of operation
If the needle tip is freely situated in the abdominal cavity for suturing, then flexibility of manipulation is improved, but the risk of injury to bowels, blood vessels, or other intra-abdominal organs increases
Solution Approach 1:
The long shaft serves as a protective intermediary structure that extends into the abdominal cavity but keeps the needle tip contained within the shaft's structural guidance. The shaft acts as a safe conduit that allows the needle to be positioned precisely at the fascial defect while preventing the needle from freely roaming in the abdominal cavity. This resolves the contradiction by providing controlled flexibility for needle manipulation within the shaft's constraints while eliminating the risk of uncontrolled needle movement that could injure intra-abdominal organs.
Data Source
AI summary
Embodiments include systems and methods for closure of a hole or other defect, for example in context of a laparoscopic surgical procedure. For example, a suturing device and method of use involve inserting the device into a hole, positioning material around the hole into a notch of the device, passing a needle through a cavity in the device and the material positioned in the notch, passing a suture through the eye of the needle, and removing the needle from the material with the suture. The suture can be removed and the process can be repeated with another end of the suture at another location through the material, around the hole. When the suture is passed through the second point of penetration, the suture can now extend both into and out of the material at different points around the hole and can be tied, thereby closing the hole.