Wrapped Simulated Blood Vessel Structure for Leak-Resistant Puncture Training
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Solution Overview
Problem
Existing simulated blood vessel models for puncture operation technique training suffer from simulated blood leakage due to damage over time, necessitating costly repairs and replacements.
Innovation Solution
A simulated blood vessel model comprising a tube made of a flexible and durable material with a tape wrapped around it, where the tape is affixed with a predetermined pitch to allow sliding and non-adherent overlapping surfaces, enabling the tube to stretch and deform, and is formed of materials like polyolefin elastomer resin and polytetrafluoroethylene.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sheet-like casing material is used to cover the tube material, then simulated blood leakage is prevented, but the model loses flexibility and cannot reproduce natural blood vessel meandering
Solution Approach 1:
The patent replaces the rigid sheet-like casing material with a flexible tape material that can be wrapped around the tube. This flexible tape maintains the blood leakage prevention function while allowing the tube to meander and deform naturally, resolving the contradiction between reliability and flexibility.
Solution Approach 2:
The patent creates a dynamic wrapping structure where the tape can slide relative to itself when the tube deforms. The overlapping portions are designed to allow relative movement, enabling the model to adapt to various shapes and positions while maintaining coverage and preventing blood leakage.
2Duration of action of moving object
If the tube material is used repeatedly for puncture training, then training effectiveness is maintained, but the tube becomes damaged and simulated blood leaks
Solution Approach 1:
The patent applies a protective tape layer beforehand to cushion and protect the tube material from puncture damage during repeated training operations. This pre-protection allows the tube to withstand multiple uses without compromising its integrity or causing simulated blood leakage.
Solution Approach 2:
The patent creates a composite structure combining the tube material with the tape material. This composite construction provides both the functional properties of the tube (flexibility, adhesion) and the protective properties of the tape (durability, leakage prevention), enabling repeated use while maintaining reliability.
3Reliability
If tape is wrapped tightly around the tube, then coverage is complete and blood leakage is prevented, but the tube cannot stretch and deform
Solution Approach 1:
The patent designs the tape wrapping system to be dynamic rather than rigid. The overlapping portions of the tape are configured to allow relative sliding when the tube stretches or deforms, maintaining complete coverage and leakage prevention while accommodating the tube's adaptability to various shapes.
Solution Approach 2:
The patent uses a flexible tape material that can conform to the tube's shape changes. This flexible wrapping maintains reliable coverage during static conditions while allowing the tube to stretch and deform freely during dynamic operations, resolving the contradiction between coverage integrity and structural adaptability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The model effectively reduces simulated blood leakage and replicates the natural meandering shape of blood vessels, enhancing training effectiveness by preventing damage and allowing flexible deformation.
Implementation Method 1
a tube formed of a material having adhesiveness, flexibility, and mechanical durability; a tape wrapped a plurality of times and affixed around the tube, wherein a wrapping position of the tape is shifted at a predetermined pitch along a longitudinal direction of the tube
Implementation Method 2
the tube is formed of a flexible material and is configured to be stretchable and bendable
Data Source
AI summary
The present application provides a simulated blood vessel model for puncture operation technique training, capable of reducing the simulated blood leakage, and conferring flexibility to a shape of the model. The simulated blood vessel model comprises: a tube 2 formed of an adhesive material; and a tape 4 wrapped a plurality of times and affixed around the tube 2, wherein a wrapping position of the tape is shifted at a predetermined pitch along a longitudinal direction of the tube 2, and the tape 4 covers an outer circumferential surface of the tube without a gap; wherein the tape 4 is formed of a material allowing two overlapping surfaces of the tape 4 to slide with each other, and configured so that the tube 2 may stretch and/or deform in its axial direction after the tape 4 is wrapped around it.