Nested Surgical Suturing Device for Force Transition
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current surgical suturing devices face complexity in transitioning operating force from an elongate tube to a force perpendicular to the axis between jaws, and loading sutures is cumbersome due to their elongated, low-profile configuration.
Innovation Solution
A surgical system comprising an outer and inner member configuration that allows a plate to advance into a bore, facilitating suture passage through tissue with audible and tactile confirmations, and a loading element to simplify plate loading into the surgical instrument.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the surgical device is configured with an elongate, low-profile structure to facilitate use through cannulas, then the device can be used in less invasive surgery, but the mechanism for threading suture and transitioning force becomes exceedingly complex
Solution Approach 1:
The patent employs nested structures where the inner member is received within the outer member, and the suture needle is received within the inner member. This nesting arrangement allows the elongate, low-profile configuration to be achieved while managing the complexity of force transmission through concentric structures that can be sequentially assembled and disassembled.
Solution Approach 2:
The surgical device is divided into separate segments including an outer member, an inner member, and a suture needle that can be independently handled. The modular design allows each component to be optimized separately, with the outer member providing the elongate low-profile structure for cannula use, while the inner member and needle handle the suture threading function.
2Stability of the object's composition
If the surgical device has an elongate configuration with force transmission through an elongate tube, then the device can maintain structural integrity, but converting axial force to perpendicular force between jaws becomes complex
Solution Approach 1:
The nested arrangement of the inner member within the outer member creates a stable structural configuration where axial force applied to the outer member can be transmitted through the nested structure. The concentric design maintains structural integrity while the interaction between nested components enables force direction changes.
3Ease of operation
If the surgical device uses a complex mechanism for force transition, then the device can achieve perpendicular force between jaws, but loading the suture onto the mechanism becomes complicated
Solution Approach 1:
The suture needle is pre-loaded with the suture material before insertion into the inner member. This preliminary action simplifies the overall loading process, as the suture is already positioned on the needle which then serves as a carrier for easy insertion into the nested structure, avoiding the need to thread suture through complex mechanisms during the procedure.
Data Source
AI summary
Various exemplary methods, systems, and devices for surgical suturing are provided. In general, a loading element can be configured to facilitate loading of a plate into a surgical instrument configured to facilitate passage of a suture through tissue. The surgical instrument can be configured to advance the suture through a tissue of a patient, to capture a free end or looped end of the suture after the suture's advancement through the tissue, and to pull the captured suture out of the patient's body with a portion of the suture remaining passed through the tissue within the patient's body.