Intertwined Helix Suturing Nail for Tissue Deformation

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Solution Overview

Problem

Conventional suturing nails used in medical surgery are prone to deformation when dealing with thicker and larger tissues due to their insufficient strength and toughness, leading to instability during the suturing process.

Innovation Solution

A suturing nail design featuring intertwined first and second nail bodies forming a helix portion, with nail legs and crowns that bend to form a B-shape structure, providing increased strength and toughness to maintain the original suturing state without deformation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a conventional single nail body is used, then the structure is simple and easy to manufacture, but the strength and toughness are insufficient causing deformation during suturing of thicker tissues

Engineering Contradiction:
Improvestrength and toughnessVSAvoidstructure complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The patent combines two separate nail bodies into a single integrated suturing nail structure. The first and second nail bodies are positioned adjacent to each other with their respective nail legs and crowns, working together as a unified structure to provide enhanced strength and toughness while maintaining operational simplicity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The suturing nail is divided into distinct functional segments: the first nail body with its nail leg and crown, the second nail body with its nail leg and crown, and the connecting portion. This segmentation allows each component to perform its specific function while contributing to the overall structural integrity and resistance to deformation.

Inventive Principle:
Principle #1Segmentation

2Strength

If the nail body is made thicker to increase strength, then the strength and toughness improve, but the penetration ability through tissue decreases

Engineering Contradiction:
Improvestrength and toughnessVSAvoidpenetration ability
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

The nail is segmented into two separate nail bodies, each with its own nail leg and crown. This segmentation allows the overall structure to have increased strength through the combined mass of two bodies, while each individual nail leg remains sufficiently thin and sharp to penetrate tissue effectively. The distributed structure provides strength without requiring any single penetration element to be overly thick.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS10238384B2Suturing nail
Publication Date: 2019.03.26 SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
  • US10238384B2 patent drawing
  • US10238384B2 patent drawing
  • US10238384B2 patent drawing

AI summary

A suturing nail includes a first nail body a second nail body being intertwined mutually to form a helix portion; a first nail crown extending from an end of the first nail body; a second nail crown extending from an end of the second nail body and opposite to the first nail crown, the first and the second nail crown being located on the same side of the helix portion and perpendicular to the helix portion; a first nail leg extending from the other end of the first nail body; a second nail leg extending from the other end of the second nail body and being spaced from the first nail, the first and the second nail leg are located on the same side of the helix portion, the first nail leg and the second nail leg are parallel to the helix portion.