Augmented Reality Simulated Patient for Physical Exam Training

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Solution Overview

Problem

Current methods for simulating physical exams in medical training are limited by the use of costly, easily breakable mechanical mannequins that do not automatically respond to palpations or percussion, requiring instructor intervention.

Innovation Solution

The system utilizes augmented reality and hand tracking technology to enable medical trainees to interact with hologram-based simulated patients, allowing for natural and intuitive physical exam maneuvers such as auscultation, palpation, and percussion, with the virtual patient reacting accordingly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If mechanical mannequins are used for physical exam simulation, then realistic physical interaction is achieved, but cost increases and portability decreases

Engineering Contradiction:
Improvephysical interaction realismVSAvoidcost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent uses virtual copies of physical patients created through 3D scanning and holographic projection. Instead of building expensive mechanical mannequins, the system creates digital replicas that can be interacted with through augmented reality, eliminating manufacturing costs while preserving physical exam realism.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent replaces the mechanical system of physical mannequins with an augmented reality system that uses holographic projection and hand tracking. The mechanical interaction is substituted with virtual interaction that responds to hand movements, eliminating the need for costly mechanical components while maintaining interaction realism.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If mechanical mannequins are used for physical exam simulation, then physical interaction is enabled, but portability decreases

Engineering Contradiction:
Improvephysical interaction realismVSAvoidportability
Core Design Contradiction:
ReliabilityVSWeight of moving object

Solution Approach 1:

The patent creates virtual copies of patients that can be projected anywhere in space using augmented reality. These holographic models have no physical weight and can be transported digitally, completely solving the portability issue while maintaining physical interaction realism through hand tracking and collision detection.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent substitutes the heavy mechanical structure of mannequins with a lightweight augmented reality system. The physical mass is replaced by software-based holographic projection and sensor tracking, enabling easy portability while preserving the ability to simulate physical exams through virtual collision detection and response.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If manual instructor intervention is used for mannequin response, then patient reaction can be triggered, but automation decreases and time consumption increases

Engineering Contradiction:
Improvepatient response accuracyVSAvoidautomatic response
Core Design Contradiction:
ReliabilityVSExtent of automation

Solution Approach 1:

The patent implements a self-service system where the virtual patient automatically responds to physical exam maneuvers without instructor intervention. The system detects hand collisions and automatically triggers appropriate patient reactions based on the type of maneuver performed, enabling autonomous operation while maintaining response accuracy.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent incorporates real-time feedback mechanisms where the system continuously monitors hand position and collision detection, then automatically adjusts patient responses accordingly. This closed-loop feedback system enables automatic response triggering based on the detected physical exam maneuvers, eliminating the need for manual instructor input while maintaining response accuracy.

Inventive Principle:
Principle #23Feedback

4Reliability

If manual instructor narration is used for patient response, then patient reaction can be conveyed, but productivity decreases

Engineering Contradiction:
Improvepatient response conveyanceVSAvoidtraining efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent creates a self-service training system where the virtual patient automatically conveys responses through multiple channels including visual holographic feedback, audio cues, and haptic sensations. This eliminates the need for instructor narration, allowing students to learn at their own pace and significantly improving training productivity while maintaining response conveyance reliability.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent substitutes the manual narration process with automated multimedia feedback systems. The system uses augmented reality visual feedback, synthesized audio responses, and potential haptic feedback to convey patient reactions automatically, replacing the time-consuming manual narration process with instantaneous automated responses that improve training efficiency.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS12210668B2System and method for performing physical exam on XR-based simulated patients
Publication Date: 2025.01.28 MEDCOGNITION INC
  • US12210668B2 patent drawing
  • US12210668B2 patent drawing
  • US12210668B2 patent drawing

AI summary

Systems and methods for medical training are provided. In some embodiments, systems and methods use computer generated simulated patients through augmented reality. In some embodiments, systems and methods enable medical training that allows a user to interact with the simulated patient which provides simulated visual, audio, or other user perceivable reactions. In some embodiments, hand tracking technology is used in a unique way to detect collisions with a virtual object to result in naturally appearing physical exam maneuvers to simulate the physical examination (e.g., auscultation, percussion, palpation stages of a physical examination) of the simulated patient.