Polymeric Vaginal Cuff Model with Embedded Mesh for Ligament Suturing

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Solution Overview

Problem

Current methods for surgical training in vaginal cuff procedures, particularly post-hysterectomy techniques, lack a safe and effective way to simulate the reattachment of uterosacral and cardinal ligaments to support the vaginal cuff, leading to potential complications.

Innovation Solution

A vaginal cuff surgical model with embedded mesh layers in polymeric materials, such as silicone or rubber, that mimics the anatomy of a vaginal cuff and uterosacral ligaments, allowing for realistic suturing practice and simulation of cuff closure procedures, including the use of a suture pad stand with angled positions to mimic the abdominal cavity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional surgical training methods are used for vaginal cuff procedures, then training can be performed with available resources, but the training is insufficient and unsafe for practicing complex post-hysterectomy techniques

Engineering Contradiction:
Improvesafety of surgical trainingVSAvoidcapability to simulate specific procedures
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent creates a realistic copy of the vaginal cuff anatomy using a polymeric material model that replicates the physical characteristics and structural features of actual vaginal cuff tissue, allowing surgeons to practice procedures on a safe, reusable replica without risking patient safety

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The model is designed as a segmented training system where the vaginal cuff model can be used independently or combined with specific ligament attachments (uterosacral and cardinal ligaments) to simulate different procedural scenarios and complexity levels

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If a realistic surgical model is created to simulate vaginal cuff anatomy, then training effectiveness improves, but the device complexity increases

Engineering Contradiction:
Improveanatomical simulation accuracyVSAvoidmodel structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The model incorporates embedded mesh layers at specific locations within the polymeric material to simulate the attachment points for uterosacral and cardinal ligaments, providing localized anatomical accuracy without making the entire model overly complex

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The vaginal cuff model combines polymeric material with embedded mesh layers to create a composite structure that mimics both the soft tissue characteristics and the structural attachment points, achieving anatomical realism through material composition rather than complex mechanical structures

Inventive Principle:
Principle #40Composite materials

3Reliability

If sufficient training on ligament reattachment is provided, then surgical outcomes improve, but the training time and resources required increase

Engineering Contradiction:
Improvesurgical outcome qualityVSAvoidtraining duration
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The model allows surgeons to perform preliminary practice of ligament reattachment procedures on the realistic vaginal cuff model before actual surgery, enabling repeated practice sessions that build muscle memory and procedural confidence without risking patient safety

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The model is designed to be self-contained and reusable, allowing surgical trainees to independently practice procedures multiple times without requiring additional resources or supervision for each practice session, thereby extending training capacity efficiently

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS10083629B2Synthetic vaginal cuff model and method of simulating vaginal cuff closure
Publication Date: 2018.09.25 UNIV OF SOUTH FLORIDA
  • US10083629B2 patent drawing
  • US10083629B2 patent drawing
  • US10083629B2 patent drawing

AI summary

A vaginal cuff surgical model and methods of manufacture and use thereof. The model includes a body (resembling a vaginal cuff) and appendages (resembling uterosacral ligaments) extending from the body. The model (body and appendages) is formed of silicone, rubber, a polymer, or other suitable material with one or more layers of mesh embedded within the polymeric material. The embedded mesh permits suture between the components of the model. The surgical model permits surgical practice of this important component of a total hysterectomy procedure via suturing across the model and to the appendages.