Modular Wearable Medicament Delivery Device Segmentation

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Solution Overview

Problem

Existing wearable drug delivery devices have a large profile that inhibits patient activities and causes embarrassment, leading to limited wear time and restricted biometric data collection, as the components for drug delivery and biometric sensing are not decoupled.

Innovation Solution

A modular drug delivery device comprising a separable injector module and a sensor module, where the injector module is removed after medicament delivery, allowing the sensor module to remain for extended biometric data collection, incorporating sensors like temperature, accelerometers, and pulse oximeters for continuous health monitoring.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the injector module and sensor module are integrated into a single wearable device, then the device can deliver medicament and collect biometric data simultaneously, but the large profile of the integrated device inhibits patient activities and causes embarrassment, leading to limited wear time

Engineering Contradiction:
Improvebiometric data collection durationVSAvoidpatient activity freedom
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The device is divided into two separate modules: an injector module for medicament delivery and a sensor module for biometric data collection. The sensor module can be worn independently after the injector module is removed, allowing extended biometric monitoring without the bulk of the injection components. This segmentation resolves the contradiction by separating the functions spatially, enabling prolonged data collection while maintaining patient comfort and activity freedom.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The sensor module is extracted from the integrated device and can be worn independently. After the injector module completes its function and is removed, the sensor module remains on the patient's body to continue collecting biometric data. This extraction allows the biometric monitoring function to be separated from the bulky injection mechanism, resolving the contradiction between extended monitoring duration and patient activity freedom.

Inventive Principle:
Principle #2Taking out (Extraction)

2Duration of action of stationary object

If the injector module remains attached to collect biometric data after injection, then continuous monitoring is possible, but the large profile of the device causes patient embarrassment and limits wear time

Engineering Contradiction:
Improvewear timeVSAvoidpatient embarrassment
Core Design Contradiction:
Duration of action of stationary objectVSObject-affected harmful factors

Solution Approach 1:

The device is segmented into an injector module and a sensor module that can function independently. After injection is complete, only the compact sensor module remains on the patient's body, significantly reducing the profile and causing less embarrassment. This segmentation enables extended wear time for data collection while minimizing the harmful social effects of a large device profile.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The sensor module is extracted from the injector module and can be worn independently after injection. This extraction removes the bulky injection components from the wearable portion, reducing patient embarrassment and enabling longer wear time. The sensor module's compact design allows it to be worn comfortably for extended periods without the social stigma associated with larger medical devices.

Inventive Principle:
Principle #2Taking out (Extraction)

3Reliability

If biometric sensors are integrated into the injector module, then the device can monitor health parameters during injection, but the sensors cannot be used for extended periods after injection due to the large device profile

Engineering Contradiction:
Improvebiometric monitoring continuityVSAvoidpost-injection monitoring duration
Core Design Contradiction:
ReliabilityVSDuration of action of moving object

Solution Approach 1:

The device is divided into an injector module with sensors for during-injection monitoring and a separate sensor module for post-injection monitoring. Both modules contain sensors that can operate independently, ensuring continuous biometric monitoring from injection through recovery. This segmentation extends the overall monitoring duration by allowing the sensor module to operate independently after the injector module is removed.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The sensor module is extracted from the injector module, allowing biometric sensors to continue monitoring health parameters after injection without being constrained by the large profile of the injector components. This extraction enables extended post-injection monitoring duration while maintaining monitoring reliability, as the sensor module's sensors remain functional and active independently.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentUS12005226B1Modular wearable medicament delivery device and method of use thereof
Publication Date: 2024.06.11 FRESENIUS KABI DEUTSCHLAND GMBH
  • US12005226B1 patent drawing
  • US12005226B1 patent drawing
  • US12005226B1 patent drawing

AI summary

A medicament delivery device and method of use thereof. The device includes a sensor module and an injector module. The injector module is adapted to (i) be coupled to the sensor module during injection of a cannula and a needle into subcutaneous tissue and during delivery of the medicament and (ii) be removed from the sensor module after the delivery of the medicament.