Nursing Service Scheduling With Demand Forecasting and Constraints

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Solution Overview

Problem

Existing scheduling technologies for nursing services in hospitals do not adequately consider multiple objectives such as patient care effectiveness and nurse satisfaction, and fail to incorporate dynamically estimated demand based on real-time data.

Innovation Solution

A method and system that utilizes historical and external data to forecast nursing service demand, aggregates constraints, and computes optimal schedules using optimization models like evolutionary algorithms and genetic algorithms, focusing on objectives like operational cost minimization, nurse satisfaction maximization, and patient care quality maximization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional manual scheduling methods are used, then device complexity is low, but productivity is low and time consumption is high

Engineering Contradiction:
Improvescheduling efficiencyVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent replaces manual mechanical scheduling processes with an automated computer-based system that uses optimization algorithms. The system automatically processes scheduling constraints, generates schedules, and handles modifications, eliminating the need for manual calculation and reducing time consumption while improving scheduling efficiency.

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

Solution Approach 2:

The system transforms the scheduling problem from a manual process into a computational one by changing parameters such as processing speed, data handling capacity, and calculation precision. The computer system processes scheduling parameters much faster and more accurately than manual methods, achieving high productivity without proportionally increasing complexity.

Inventive Principle:
Principle #35Parameter changes

2Manufacturing precision

If computerized scheduling systems are implemented, then productivity is improved, but scheduling precision is insufficient for multiple objectives

Engineering Contradiction:
Improvescheduling accuracyVSAvoidscheduling efficiency
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The patent incorporates feedback mechanisms where the system evaluates generated schedules against multiple objectives (patient care quality, nurse satisfaction, operational cost) and iteratively refines the scheduling. The optimization algorithms use feedback from constraint violations and objective function values to improve scheduling precision while maintaining efficiency.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system dynamically adjusts scheduling parameters and algorithms based on real-time hospital data such as patient admissions, nurse availability, and operational constraints. This dynamic adaptation allows the system to achieve high precision for multiple objectives without sacrificing productivity, as the system learns from changing conditions and optimizes accordingly.

Inventive Principle:
Principle #15Dynamics

3Measurement precision

If predictive analytics and machine learning are used, then scheduling accuracy is improved, but device complexity and computational requirements increase

Engineering Contradiction:
Improvedemand forecasting accuracyVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent applies predictive analytics and machine learning models in advance to forecast nursing demand and identify scheduling patterns before actual scheduling occurs. By pre-processing historical data and training models beforehand, the system achieves high forecasting accuracy without requiring complex real-time computation during the actual scheduling process, thus managing complexity effectively.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system segments the scheduling problem into separate functional modules: data collection, predictive analytics, optimization, and schedule generation. Each module handles specific tasks independently, allowing the complex machine learning components to be isolated and managed separately from the optimization algorithms, reducing overall system complexity while maintaining high accuracy.

Inventive Principle:
Principle #1Segmentation

4Manufacturing precision

If optimization algorithms are applied to consider multiple objectives, then scheduling quality is improved, but computational time and complexity increase

Engineering Contradiction:
Improveschedule optimization qualityVSAvoidcomputational time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The patent applies optimization algorithms that balance thoroughness with efficiency by using heuristic methods and guided search techniques. Instead of exhaustively checking all possible schedules (which would be extremely time-consuming), the system uses intelligent algorithms that explore promising solutions more efficiently, achieving high optimization quality within acceptable computational time limits.

Inventive Principle:
Principle #16Partial or excessive action

Solution Approach 2:

The system performs preliminary actions by pre-calculating constraint violations, pre-ordering scheduling decisions, and using data-driven predictions to narrow down the search space before applying optimization algorithms. This preliminary processing reduces the computational burden on the main optimization algorithms, achieving high schedule quality without excessive computational time.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS12548662B2Method and system for optimal scheduling of nursing services
Publication Date: 2026.02.10 QUANTIPHI INC
  • US12548662B2 patent drawing
  • US12548662B2 patent drawing
  • US12548662B2 patent drawing

AI summary

A method and system for optimal scheduling of nursing services in a hospital is provided herein. The method and system comprises forecasting demand for the nursing services for a time interval based on historical data and external data. The method and system further comprises extracting nurses' availability data for the time interval. The method and system comprises aggregating constraints applicable to the nursing services. The method and system also comprises computing a schedule of nurses based on the constraints using at least an optimization model. The method and system further comprises matching the schedule of nurses to the demand based on at least an objective