Surgical Prosthetic Coupler for Controlled Tension Fixation

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Solution Overview

Problem

Conventional surgical prosthetics face variability in tension application during fixation, leading to potential tissue damage and inconsistent healing outcomes due to differences in surgeon techniques, which can result in additional surgical steps to relieve tension at incision sites.

Innovation Solution

The described surgical prosthetics employ a patch body with first and second fasteners and couplers that allow for controlled tension application, where the couplers can be shortened to tension the patch body, and secured to maintain a desired configuration, reducing variability and facilitating consistent fixation without excessive tension on the tissue.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional surgical prosthetics are fixed using traditional methods, then the prosthetic can be attached to tissue, but variability in tension application occurs leading to inconsistent healing outcomes

Engineering Contradiction:
Improvehealing outcome consistencyVSAvoidsurgeon technique variability
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent applies parameter changes by modifying the physical state of the coupler from extended to shortened, thereby controlling the tension parameter of the patch body. This allows standardized tension application regardless of surgeon technique variability, improving healing outcome consistency.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The coupler acts as an intermediary element between the patch body and the fixation mechanism. By shortening the coupler, tension is mediated and controlled uniformly across different surgical procedures, reducing technique variability and improving reliability of healing outcomes.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Strength

If excessive tension is applied during prosthetic fixation, then the patch body can be secured to tissue, but tissue damage may occur

Engineering Contradiction:
Improvefixation securityVSAvoidtissue damage
Core Design Contradiction:
StrengthVSObject-affected harmful factors

Solution Approach 1:

The patent controls the tension parameter by adjusting the coupler length. The coupler can be shortened to the extent needed to achieve secure fixation without exceeding tissue tolerance, thereby preventing tissue damage while maintaining fixation strength.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The coupler provides dynamic adjustment capability, allowing the surgeon to control tension progressively. This dynamic control enables securing the patch with appropriate tension while avoiding excessive force that could damage tissue.

Inventive Principle:
Principle #15Dynamics

3Object-affected harmful factors

If additional surgical steps are performed to relieve tension at incision sites, then tissue damage is prevented, but surgical time and complexity increase

Engineering Contradiction:
Improvetissue damage preventionVSAvoidsurgical time
Core Design Contradiction:
Object-affected harmful factorsVSLoss of time

Solution Approach 1:

The coupler is pre-configured with controlled tension characteristics, allowing tension-free healing to be achieved as a direct result of the initial fixation procedure. This preliminary control of tension eliminates the need for additional corrective surgical steps to relieve tension at incision sites.

Inventive Principle:
Principle #10Preliminary action

4Ease of operation

If the patch body is not tensioned uniformly, then fixation is simpler, but inconsistent healing and potential complications occur

Engineering Contradiction:
Improvefixation simplicityVSAvoidhealing consistency
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The coupler provides uniform tension distribution across the patch body through its controlled shortening mechanism. This ensures consistent healing outcomes while maintaining relative simplicity in the fixation procedure, as the tension uniformity is achieved through the coupler design rather than complex surgical techniques.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12167955B2Surgical prosthetic
Publication Date: 2024.12.17 DAVOL INC
  • US12167955B2 patent drawing
  • US12167955B2 patent drawing
  • US12167955B2 patent drawing

AI summary

Embodiments disclosed herein relate to prosthetics for augmenting or repairing a tissue defect, such as a ventral or incisional hernia. In some embodiments, a repair prosthetic may include a patch body and a first fastener attached to a first portion of the patch body. A coupler may be attached to and extend from a second portion of the patch body, and a second fastener may be attached to the second portion of the patch body via the coupler. The coupler may be retracted relative to the second portion of the patch body or the second fastener to apply tension to the patch body in some embodiments.