Multilayered Imprinting Tape for Complex Surface Texturing

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Solution Overview

Problem

Existing methods struggle to effectively reproduce micro-texturing on large or complex surfaces, such as catheters, due to difficulties in maintaining dimensional stability and accessibility during manufacturing processes.

Innovation Solution

A multilayered tape comprising a first layer with a surface texture and a second layer having partitions parallel to its longitudinal direction, which provides stability and allows for uniform contact with curved surfaces, enabling the transfer of texture during high-temperature manufacturing processes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If traditional texturing methods are used on large or complex surfaces, then the texturing can be applied to simple geometries, but the method fails to maintain dimensional stability and accessibility on large or complex surfaces such as catheters

Engineering Contradiction:
Improvetexturing reproduction accuracyVSAvoidapplicability to large or complex surfaces
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The tape is divided into multiple layers with distinct functions: a first layer containing the texturing pattern, a second layer providing dimensional stability, and optionally a third adhesive layer. This segmentation allows each layer to be optimized for its specific purpose, enabling the overall system to maintain precision while adapting to complex surfaces

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention uses a composite multilayered structure combining materials with different properties - the first layer may be flexible and patterned, the second layer provides rigidity and stability, and the adhesive layer ensures bonding. This composite approach resolves the contradiction by integrating materials that individually address different requirements

Inventive Principle:
Principle #40Composite materials

2Stability of the object's composition

If the tape structure is made more complex to maintain stability on curved surfaces, then dimensional stability improves, but the manufacturing complexity increases

Engineering Contradiction:
Improvedimensional stability during texturingVSAvoidmultilayered tape structure
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The tape is divided into multiple layers with distinct functions: a first layer containing the texturing pattern, a second layer providing dimensional stability, and optionally a third adhesive layer. This segmentation allows each layer to be optimized for its specific purpose, enabling the overall system to maintain precision while adapting to complex surfaces

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the tape have different properties - the first layer is designed with specific surface characteristics for texturing, while the second layer has different mechanical properties for stability. This local differentiation allows each part to perform its function optimally without requiring the entire structure to be overly complex

Inventive Principle:
Principle #3Local quality

3Object-affected harmful factors

If the texturing dimensions are reduced to nanometer or micrometer range to prevent adhesion of certain organisms, then the ability to prevent adhesion of small organisms improves, but the difficulty of reproducing the texturing on large surfaces increases

Engineering Contradiction:
Improveadhesion prevention of microorganismsVSAvoidtexturing reproduction on large surfaces
Core Design Contradiction:
Object-affected harmful factorsVSManufacturing precision

Solution Approach 1:

The first layer of the tape contains a precise copy of the desired texturing pattern at the required nanometer or micrometer scale. This master pattern is then transferred to the catheter surface through the multilayered tape system, allowing high-precision micro-texturing to be reproduced across large surface areas that would be difficult to texture using direct fabrication methods

Inventive Principle:
Principle #26Copying

Data Source

PatentUS11465332B2Imprinting tape, method of manufacture thereof and articles comprising the same
Publication Date: 2022.10.11 SHARKLET TECH INC
  • US11465332B2 patent drawing
  • US11465332B2 patent drawing
  • US11465332B2 patent drawing

AI summary

Disclosed herein is a multilayered tape comprising a first layer; where the first layer comprises a first surface and second surface; the first surface of the first layer having a surface texture; a second layer; the second layer having a first surface and a second surface; where the first surface of the second layer is closer to the second surface of the first layer than the second surface of the second layer; where the second surface of the second layer contains at least one partition that is parallel to a longitudinal direction of the multilayered tape.