Residual stress features in organ models

JP2025163044A5Pending Publication Date: 2025-12-03APPL MEDICAL RESOURCES CORP
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Patent Information

Application Number
JP2025116342
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2016-04-26
Filing Date
2025-07-10
Publication Date
2025-12-03

AI Technical Summary

Technical Problem

Existing surgical training methods, particularly for laparoscopic procedures, face challenges in replicating the three-dimensional environment and tactile sensations, and require complex and costly sanitation for live organs, while current artificial organs lack sufficient realism and realism-specific targeting for laparoscopic training.

Method used

A method involving the application of uncured silicone to stretched elastic materials or meshes to create simulated tissue structures with residual stresses, mimicking natural anatomical features by incorporating prefabricated pieces or sheets, and using less complex molds to achieve realistic curves and tactile properties.

Benefits of technology

The method produces simulated tissue structures that accurately mimic natural anatomical features, providing enhanced realism and tactile feedback, reducing training complexity and costs, and allowing for effective skill development outside the operating room.

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Abstract

To provide simulated tissue structures and methods of making the simulated tissue structures.SOLUTION: An elastic first material is placed in tension. An elastic second material is adhered to the first material while the first material is in tension. The adhered second material and the material in tension form a first shape of a simulated tissue structure. Tension on the first material is released. In releasing the tension on the first material, a force is exerted on the adhered second material to bring the combination of the first material and the second material into a second shape. The first shape is maintained by a mold or mandrel, and the second shape is the desired shape of the simulated tissue structure.SELECTED DRAWING: Figure 15
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