3D Printed Urinary Crystals for Medical Training
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Solution Overview
Problem
Medical and veterinary students face challenges in training for urinalysis due to delays and sample deterioration, lacking hands-on experience with realistic crystalluria samples, especially for rare conditions like calcium oxalate crystals, which are crucial for diagnostic accuracy and therapeutic decisions.
Innovation Solution
3D printed structures resembling crystals, cells, and casts are fabricated and mounted on substrates or housed in simulated biofluids to provide a consistent and reproducible educational tool for training, allowing students to practice identifying normal and abnormal bio-analytes under microscopy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If real urine samples are used for teaching urinalysis, then students gain authentic hands-on experience, but sample deterioration and bacterial growth occur due to delays in analysis
Solution Approach 1:
The patent prepares artificial urine samples with pre-formed crystals and cellular elements before teaching sessions. These samples are stabilized and stored in advance, eliminating the need for fresh samples during class. The preliminary preparation of diagnostic elements ensures consistent quality without time-related deterioration.
Solution Approach 2:
The patent creates artificial replicas of urine samples containing synthesized crystals (struvite, calcium oxalate, urate) and cellular elements that mimic real urine sediment. These copies preserve the diagnostic features needed for teaching while avoiding the deterioration issues of real samples.
2Adaptability or versatility
If real patient samples are used for teaching, then students practice with authentic materials, but access to samples is limited and consent requirements complicate the process
Solution Approach 1:
The patent develops artificial urine samples that replicate the appearance and diagnostic features of real urine sediment without requiring actual patient samples. This eliminates the need for patient consent forms, sample collection protocols, and coordination with clinical laboratories.
Solution Approach 2:
The artificial samples are self-contained and require no external sample collection or ethical approval processes. The teaching materials can be prepared and distributed independently without involving patients or clinical staff for sample provision.
3Adaptability or versatility
If textbook images are used instead of real samples, then sample access issues are avoided, but students lack hands-on experience with sample preparation and interpretation
Solution Approach 1:
The patent creates physical artificial urine samples that can be handled, prepared, and examined microscopically, providing tactile learning experience. These three-dimensional replicas allow students to practice the complete workflow from sample handling to diagnostic interpretation, unlike two-dimensional textbook images.
Solution Approach 2:
The patent modifies the physical state and properties of the teaching material by creating tangible, handleable artificial urine samples with suspended crystals and cellular elements. This transforms the learning experience from passive image viewing to active sample manipulation and microscopic examination.
4Duration of action of stationary object
If permanent mounts with balsam or synthetic resins are used, then durable teaching slides are created, but the process is time-consuming and requires highly toxic solvents
Solution Approach 1:
The patent uses disposable artificial urine samples that are pre-prepared and ready for immediate microscopic examination. These single-use samples eliminate the need for time-consuming permanent mounting procedures and toxic solvents, while still providing durable teaching value through repeated use in classrooms.
Solution Approach 2:
The artificial samples are designed to be stable and durable enough for repeated teaching use without requiring permanent mounting. The synthesized crystals and cellular elements remain intact during handling and microscopic examination, providing long-term teaching value without the complexity of traditional mounting processes.
Data Source
AI summary
Provided herein are educational models that include a substrate and one or more 3D printed structures mounted or affixed thereon, where the one or more 3D printed structures resemble crystals, normal and/or abnormal cells, or casts found in a biofluid. Also provided herein are educational models that include one or more 3D printed structures contained (for example, dispersed or suspended) in a carrier, where the one or more 3D printed structures resemble crystals, normal and/or abnormal cells, or casts found in a biofluid. Also provided herein are kits having a plurality of educational models, where each of the educational model is individually identifiable, and an answer key or guide that provides an identification of each 3D printed structure contained in each of the plurality of individually identifiable educational models. The 3D printed structures can be dimensioned for viewing with the naked eye or can be dimensioned for viewing under magnification.