Integrally Woven Textile Pouches Without Seams or Puncturing
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Solution Overview
Problem
Existing medical textiles, such as grafts, require additional time and resources for sewing or threading radiopaque materials, leading to increased fabrication time and material puncturing.
Innovation Solution
Integrally woven or knitted textiles with pouches, flaps, and tabs that share yarns with the main textile, eliminating the need for seams and separate sewing, allowing for seamless construction and reduced fabrication time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If radiopaque materials are sewn or threaded into the graft using conventional methods, then the graft can be constructed with necessary radiopaque components, but the fabrication time increases and material puncturing occurs
Solution Approach 1:
The radiopaque material is integrated directly into the graft fabric during the weaving or knitting process, merging two previously separate operations (fabrication and radiopaque material insertion) into a single integrated process, thereby eliminating additional fabrication steps and reducing overall fabrication time
Solution Approach 2:
The radiopaque material is incorporated into the graft structure during the initial weaving or knitting process rather than being added later through sewing or threading, performing the integration action in advance and eliminating subsequent time-consuming operations
2Reliability
If radiopaque materials are sewn or threaded into the graft using conventional methods, then the graft can be constructed with necessary radiopaque components, but material puncturing occurs
Solution Approach 1:
The radiopaque material is integrated directly into the graft fabric during the weaving or knitting process, merging two previously separate operations (fabrication and radiopaque material insertion) into a single integrated process, thereby eliminating additional fabrication steps and reducing overall fabrication time
Solution Approach 2:
The potential harm of material puncturing from conventional sewing or threading methods is converted into a benefit by using an integrated weaving or knitting process that incorporates radiopaque material without puncturing, transforming the design constraint into a manufacturing advantage
3Reliability
If pouches are separately constructed and attached to the textile, then the pouch can be formed with proper structure, but the fabrication process becomes more complex and time-consuming
Solution Approach 1:
The pouch is formed as an integral part of the textile during the same weaving or knitting process, merging separate pouch fabrication and textile construction operations into a single unified process, thereby eliminating attachment steps and improving fabrication efficiency
Solution Approach 2:
The pouch structure is created during the initial textile fabrication process rather than being constructed separately and attached later, performing the pouch formation action in advance and eliminating subsequent attachment operations
4Reliability
If seams and separate sewing are used to attach pouches and flaps, then the components can be securely attached, but the device complexity increases
Solution Approach 1:
The pouch and flap components are formed as integral parts of the textile during the same weaving or knitting process, merging separate component fabrication and attachment operations into a single unified process, thereby eliminating seams and reducing fabrication process complexity
Solution Approach 2:
The complex sewing and attachment operations are extracted from the fabrication process by using an integrated weaving or knitting method that creates pouches and flaps as integral parts of the textile, eliminating the need for separate attachment steps
Data Source
AI summary
An integrally woven textile, such as a tubular graft or sheet, includes a base textile layer and at least one pouch, tab, or flap. The at least one pouch, tab, or flap is integrally woven from at least a portion of a same set of yarns as the base textile layer to define a single opening for access to an open inner space of the pouch, tab, or flap. Methods of making the same are also disclosed.


