Elliptical Cone Suturing Device with Needle Guide Cavity
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Solution Overview
Problem
Current surgical suturing methods are cumbersome, costly, and pose a high risk of internal injury due to the need for specialized guides and reliance on camera guidance, which complicates closing tissue defects, especially in minimally invasive procedures.
Innovation Solution
A suturing device with an elliptical cone structure and a notch that includes a needle guide cavity and a suture guide cavity, allowing for easier manipulation and reduced risk of injury, as well as a method involving inserting the device into a pre-existing hole, positioning tissue in the notch, and using a needle with an eye to guide sutures through the material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If specialized guide devices and camera guidance are used for suturing, then the precision and safety of tissue defect closure is improved, but the cost and device complexity increase significantly
Solution Approach 1:
The patent introduces a guide device with a needle guide cavity that serves as an intermediary between the practitioner and the tissue defect. This guide device provides a predetermined safe path through the tissue, eliminating the need for complex camera guidance systems while maintaining safety through its physical structure that prevents deviation from the safe pathway.
Solution Approach 2:
The guide device is pre-configured with a needle guide cavity that defines a predetermined safe path before the suturing procedure begins. This preliminary structuring of the guidance pathway eliminates the need for real-time complex guidance systems during the procedure, reducing device complexity while maintaining reliability.
2Adaptability or versatility
If curved needles and specialized guides are used for suturing, then the ability to close tissue defects is improved, but the ease of operation and learning curve are worsened
Solution Approach 1:
The guide device acts as an intermediary that simplifies the operation by providing a pre-defined pathway. The practitioner simply needs to insert the needle through the guide's cavity, eliminating the need to master complex curved needle techniques while maintaining the ability to close various tissue defects effectively.
Solution Approach 2:
The suturing function is segmented into two parts: the guide device that provides the predetermined safe path and the simple needle that follows this path. This segmentation allows the complex guidance function to be separated from the simple needle insertion action, improving ease of operation while maintaining adaptability.
3Reliability
If disposable specialized guides are used for each procedure, then the safety and precision of suturing is improved, but the cost of surgery increases unacceptably
Solution Approach 1:
The guide device is designed with universal applicability to work with various needle types and suture materials. This multi-functionality allows a single guide device to be reused across multiple procedures and different surgical applications, eliminating the need for expensive disposable specialized guides while maintaining safety and precision through consistent performance.
Data Source
AI summary
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, and lining up an eye of the needle with a portal for passage of a suture. A suture is then passed through the eye of the needle and the needle is removed from the material (such as skin and fascia) with the suture. The suture is then removed and the process is 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 now extends both into and out of the material at different points around the hole and can be tied.