Demonstration Mannequin Simulating Catheter Malposition

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Solution Overview

Problem

Current training methods for clinicians lack effective simulation of catheter malposition scenarios, making it difficult for them to recognize and correct such malpositions during actual procedures.

Innovation Solution

A demonstration mannequin with simulated vasculature and diversion elements that can selectively obstruct the path of a catheter, simulating malposition scenarios, and can be connected to a catheter tracking system to detect and train clinicians on correcting malpositions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If current training methods are used, then clinicians can perform catheter insertion, but they cannot effectively recognize and correct catheter malpositions

Engineering Contradiction:
Improvecatheter placement accuracyVSAvoidmalposition recognition capability
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent creates a virtual replica of the human vasculature system complete with anatomical structures, tissue layers, and circulatory flow patterns. This virtual model allows repeated practice scenarios where clinicians can insert catheters and immediately see malposition consequences without risk to actual patients, directly addressing the need for reliable malposition recognition training.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The system provides real-time visual feedback showing the catheter's position relative to the intended target, highlighting anatomical structures, and displaying malposition detection alerts. This immediate feedback mechanism enables clinicians to recognize malpositions during training and understand the consequences, improving both reliability and ease of operation.

Inventive Principle:
Principle #23Feedback

2Adaptability or versatility

If real patient procedures are used for training, then clinicians gain practical experience, but patient safety is compromised and malposition scenarios cannot be reliably simulated

Engineering Contradiction:
Improvetraining scenario varietyVSAvoidpatient safety risk
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The virtual system creates accurate copies of vascular anatomy, tissue layers, and physiological conditions, allowing unlimited training scenarios with different patient presentations, malposition types, and complication levels without compromising actual patient safety.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The system dynamically adjusts training scenarios based on clinician performance level, providing progressive difficulty levels from basic catheter insertion to complex malposition correction. Scenarios can be randomly generated or selected from a library, and the system adapts the complexity to match the trainee's current capability while maintaining safety.

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If malposition scenarios are not simulated, then training remains simple, but clinicians lack the ability to correct malpositions in real time

Engineering Contradiction:
Improvetraining simplicityVSAvoidmalposition correction capability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system continuously monitors catheter position and provides immediate feedback when malpositions occur, showing the clinician the error and guiding correction. This maintains training engagement while building reliable malposition correction skills through repeated practice.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The training session continues seamlessly through malposition events without interruption or restart. The system maintains the procedural flow, allowing clinicians to practice insertion, encounter malpositions, correct them, and proceed to the next scenario without breaking the learning cycle, thus maintaining simplicity while improving reliability.

Inventive Principle:
Principle #20Continuity of useful action

Data Source

PatentUS8632343B2Demonstration mannequin for simulating catheter malposition
Publication Date: 2014.01.21 CR BARD INC
  • US8632343B2 patent drawing
  • US8632343B2 patent drawing
  • US8632343B2 patent drawing

AI summary

A demonstration mannequin for simulating insertion of a catheter or other medical device into the body of a patient is disclosed. The mannequin is useful for training clinicians in the placement of a catheter into the patient's vasculature and includes the ability to provide a malposition scenario in which the catheter is deviated from an intended path within the vasculature, resulting in a simulated malposition thereof. In one embodiment, the mannequin comprises a torso body portion and a simulated vasculature disposed within the body. The simulated vasculature is accessible by a medical device, such as a catheter, which can be advanced within the simulated vasculature. The mannequin further includes at least one diversion element that selectively obstructs a portion of the simulated vasculature to block advancement of a distal end of the catheter along an intended path and instead causes diversion of the catheter, thus simulating a catheter malposition scenario.