Fast-Assembly Subcutaneous Sensor Implanter for Physiological Monitoring

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Solution Overview

Problem

Existing physiological parameter measurement devices for chronic diseases require separate assembly of sensors and implanters, leading to increased manufacturing costs, inconvenience for users, and potential discomfort during implantation due to complex and time-consuming processes.

Innovation Solution

A novel implantation device with a housing, implantation module, detachable module, and bottom cover design allows for quick and painless subcutaneous implantation of sensors, maintaining a dry environment and reducing manufacturing steps through a simplified assembly process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If separate assembly of sensor and implanter is used, then manufacturing process flexibility is improved, but manufacturing cost increases and user convenience deteriorates

Engineering Contradiction:

Improvemanufacturing process flexibilityVSAvoidassembly complexity

Core Design Contradiction:

Ease of manufactureVSDevice complexity

Solution Approach 1:

The patent integrates the sensor and implanter into a single integrated device, eliminating the need for separate assembly. The sensor is built directly into the implanter housing, with the needle assembly serving as a common component for both functions. This merging reduces manufacturing complexity and costs while improving user convenience.

Inventive Principle:

Principle #5Merging (Combining)

2Reliability

If conventional sterilization and moisture-proof procedures are applied to sensor, then sensor reliability is improved, but manufacturing process complexity increases

Engineering Contradiction:

Improvesensor reliabilityVSAvoidmanufacturing process complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent employs a desiccant material (such as silica gel) within the implanter housing to maintain a dry, moisture-free environment for the sensor. This passive moisture control method preserves sensor reliability through chemical desorption of moisture rather than complex sterilization procedures, simplifying the manufacturing process.

Inventive Principle:

Principle #39Inert atmosphere (Inert environment)

3Measurement precision

If multiple blood draws or body fluid extraction are performed, then measurement accuracy is improved, but patient discomfort increases

Engineering Contradiction:

Improvephysiological data accuracyVSAvoidpatient discomfort

Core Design Contradiction:

Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The patent implements a single puncture design where the needle penetrates the skin once and remains in place for continuous monitoring. The sensor is positioned to continuously sample interstitial fluid through the single puncture site, eliminating the need for repeated blood draws or fluid extractions while maintaining measurement accuracy.

Inventive Principle:

Principle #10Preliminary action

4Manufacturing precision

If implantation process is extended or not coherent, then implantation accuracy is improved, but user discomfort and pain increase

Engineering Contradiction:

Improveimplantation accuracyVSAvoidimplantation time

Core Design Contradiction:

Manufacturing precisionVSLoss of time

Solution Approach 1:

The patent employs a spring-loaded needle mechanism that rapidly deploys the needle through the skin in a single swift motion. The needle is held in a retracted position during handling and is only deployed when the device is activated against the skin, allowing the implantation to be completed in one quick action rather than through multiple slow steps.

Inventive Principle:

Principle #21Skipping (Rushing through)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The device reduces manufacturing costs and enhances user convenience by simplifying the assembly process while ensuring hygienic and painless implantation of sensors, maintaining sensor integrity and accuracy over extended periods.

Implementation Method 1

The air-tight space is provided with a desiccant material to maintain a dry condition in the air-tight space

Methodology Applied

Scientific EffectAbsorption: Absorption (physical)

Implementation Method 2

a distance between the operating portion and the supporting portion and the force form an operating moment allowing a user to cause thereby a side detachment between the bottom cover and the housing

Methodology Applied

Scientific EffectMechanical Advantage: Mechanical Advantage

Data Source

PatentEP3771408B1Physiological signal monitoring system for fast assembly

Publication Date: 2025.10.22 BIONIME

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AI summary

An implantation device (100) for prompt subcutaneous implantation of a sensor (72) to measure a physiological signal of an analyte in a biofluid of a living body is disclosed. The implantation device (100) includes a housing (11), an implantation module (30), a detachable module and a bottom cover (20). The housing (11) has a bottom opening (111'). The implantation module (30) includes an implanting device (33) and a needle extracting device (35). The detachable module includes the sensor (72) detachably engaged with the implantation module (30); and a base (50) configured to mount the sensor (72) thereon. The bottom cover (20) is detachably coupled to the bottom opening (111') so that the housing (11) and the bottom cover (20) together form an accommodating space (301). The implantation module (30) and the detachable module are accommodated in the accommodating space (301). The bottom cover (20) has an operating portion (228) configured to bear a force, and a supporting portion (228') is formed on the opposite end of the operating portion (228).