Split Ring Resonator Antenna for Wearable Infusion Pump Wireless Reliability

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Solution Overview

Problem

Existing portable and wearable devices for controlled release of therapeutics face challenges such as high malfunction rates, large size, high weight, and high cost, as well as the issue of frequent re-location for skin application.

Innovation Solution

The infusion pump assembly incorporates a split ring resonator antenna with a resonant frequency comprising a plurality of planar metallic layers, coupled with an impedance matching circuit, to enable wireless data transmission and reception, minimizing parasitic effects from dielectric materials. This system includes a pump assembly, valve assemblies, and a control unit for precise fluid delivery.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional antennas are used in wearable medical devices, then wireless communication can be achieved, but parasitic effects from dielectric materials degrade signal quality and reliability

Engineering Contradiction:

Improvewireless signal qualityVSAvoidparasitic effects from dielectric materials

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent introduces an impedance matching circuit as an intermediary component between the split ring resonator antenna and the dielectric materials. This circuit acts as a mediator that compensates for the parasitic effects by adjusting impedance parameters, thereby maintaining signal quality despite the presence of dielectric materials in close proximity to the antenna.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent employs parameter changes by adjusting the resonant frequency of the split ring resonator antenna and optimizing the impedance matching circuit parameters. By tuning these parameters, the system adapts to minimize the impact of parasitic effects from dielectric materials, improving wireless signal reliability in the wearable medical device environment.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If conventional wireless communication components are used, then data transmission is possible, but device size, weight, and cost increase

Engineering Contradiction:

Improvewireless control functionalityVSAvoiddevice weight

Core Design Contradiction:

ReliabilityVSWeight of moving object

Solution Approach 1:

The patent merges the antenna structure with the housing or other device components, integrating the split ring resonator antenna into the existing device architecture. This consolidation eliminates the need for separate antenna components, thereby reducing overall device weight while maintaining wireless control functionality for the infusion pump.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The split ring resonator antenna is designed to serve multiple functions: it provides wireless communication capability while also potentially serving as a structural element or being integrated with the housing. This multi-functionality reduces the need for additional components, thereby reducing device weight and complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Reliability

If conventional antennas are used, then wireless communication is achieved, but device complexity and manufacturing cost increase

Engineering Contradiction:

Improvewireless data transmissionVSAvoidantenna system complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the antenna function with the impedance matching circuit into an integrated wireless communication system. This merging of functions reduces the number of separate components and simplifies the overall antenna system architecture, making it less complex and more suitable for manufacturing in wearable medical devices.

Inventive Principle:

Principle #5Merging (Combining)

4Productivity

If traditional infusion pumps are used, then fluid delivery is achieved, but device size and weight are large

Engineering Contradiction:

Improvefluid delivery capabilityVSAvoiddevice size

Core Design Contradiction:

ProductivityVSVolume of moving object

Solution Approach 1:

The patent replaces traditional mechanical infusion pump components with a miniaturized pump assembly that can be integrated into the wearable device. This substitution enables precise fluid delivery control while significantly reducing device volume and weight, making the infusion pump suitable for wearable applications.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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 system achieves efficient and reliable wireless control of fluid delivery, reducing the size, weight, and cost of the device while minimizing the impact of dielectric materials, thus enhancing user convenience and therapeutic efficacy.

Implementation Method 1

a split ring resonator antenna having a resonant frequency

Methodology Applied

Scientific EffectResonance: Resonance

Data Source

PatentUS12334635B2Split ring resonator antenna adapted for use in wirelessly controlled medical device

Publication Date: 2025.06.17 DEKA PRODUCTS LP

AI summary

An infusion pump assembly is disclosed. The infusion pump assembly includes a reservoir for receiving an infusible fluid, a pump assembly for pumping a quantity of infusible fluid from the reservoir to an exit, a first valve assembly configured to selectively isolate the pump assembly from the reservoir, a second valve assembly configured to selectively isolate the exit from the pumping assembly, and a split ring resonator antenna having a resonant frequency comprising a plurality of planar metallic layers.