Statistical Backup Kit Assembly for Arthroplasty Implants

Solution Overview

Problem

Current methods for preparing patient-specific arthroplasty kits often result in unnecessary and costly backup implants being included in shipments, as they are designed to cover every possible size for each procedure, leading to inefficiency and waste, while also failing to account for statistically expected implant size deviations.

Innovation Solution

A backup kit is assembled using a compliance database that analyzes data from completed arthroplasty procedures to determine the statistically expected implant size deviations, allowing for a tailored selection of backup implants that are specific to the shipment, reducing unnecessary components and optimizing inventory.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If backup implants are included for every possible size in each patient-specific arthroplasty kit, then coverage for all implant size variations is ensured, but the number and weight of backup implants increases unnecessarily

Engineering Contradiction:

Improvecoverage for implant size variationsVSAvoidnumber of backup implants

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The backup implant inventory is segmented into multiple shipments, with each shipment containing patient-specific arthroplasty kits for specific patients. Instead of including all possible backup implant sizes in each individual kit, the system divides the backup implants into targeted groups based on statistical analysis of expected size deviations for each specific procedure

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Each backup implant shipment is customized with specific implant sizes and quantities tailored to the statistical expectations for that particular group of procedures. The composition of backup implants varies by shipment based on patient-specific factors, procedure type, and historical deviation data, rather than using a uniform approach for all kits

Inventive Principle:

Principle #3Local quality

2Reliability

If backup implants are included for every possible size in each patient-specific arthroplasty kit, then coverage for all implant size variations is ensured, but the weight of the shipment increases

Engineering Contradiction:

Improvecoverage for implant size variationsVSAvoidshipment weight

Core Design Contradiction:

ReliabilityVSWeight of stationary object

Solution Approach 1:

The backup implant inventory is segmented into multiple shipments, with each shipment containing patient-specific arthroplasty kits for specific patients. Instead of including all possible backup implant sizes in each individual kit, the system divides the backup implants into targeted groups based on statistical analysis of expected size deviations for each specific procedure

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Each backup implant shipment is customized with specific implant sizes and quantities tailored to the statistical expectations for that particular group of procedures. The composition of backup implants varies by shipment based on patient-specific factors, procedure type, and historical deviation data, rather than using a uniform approach for all kits

Inventive Principle:

Principle #3Local quality

3Reliability

If traditional methods are used to prepare patient-specific arthroplasty kits, then all possible implant sizes are covered, but statistical expected implant size deviations are not accounted for

Engineering Contradiction:

Improveimplant size coverageVSAvoidstatistical deviation data

Core Design Contradiction:

ReliabilityVSLoss of information

Solution Approach 1:

Statistical analysis of expected implant size deviations is performed in advance of preparing the backup implant shipments. Historical data from completed arthroplasty procedures is analyzed to predict the likelihood of size deviations for upcoming procedures, allowing the backup kit composition to be optimized before assembly

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system uses feedback from historical procedure data to continuously improve backup implant selection. By analyzing actual implant size deviations from completed procedures, the system refines its statistical models to better predict future size variations, making increasingly accurate backup kit compositions

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS11253269B2Backup kit for a patient-specific arthroplasty kit assembly

Publication Date: 2022.02.22 BIOMET MFG LLC

AI summary

A method for preparing a backup kit for a plurality of patient-specific arthroplasty procedures scheduled at the same medical facility includes providing a database with data from completed arthroplasty procedures using patient-specific arthroplasty kits. The database includes comparisons between preoperatively planned implant size and intraoperatively implanted implant size. The method includes determining a statistically expected implant size deviation from a planned implant size for each implant included in a plurality of patient-specific arthroplasty kits prepared for a shipment to the medical facility using the database. A backup kit of backup implants is assembled for the shipment. The number and size of the backup implants is determined from the statistically expected implant size deviations.