Detachable Sensor Patch for Vital Sign Monitoring on Classic Watches

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Solution Overview

Problem

Smartwatches do not meet the aesthetic and fashion requirements of users who prefer classic or luxury watches, while traditional watches lack the functionality for continuous vital function monitoring.

Innovation Solution

A reversibly detachable patch for wristwatches or bracelets that integrates sensors for vital function monitoring, allowing integration into watch straps or bracelets without altering their appearance, equipped with a system-on-a-chip (SoC) for data processing and wireless communication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a smartwatch is used for continuous vital function monitoring, then health monitoring functionality is improved, but aesthetic appearance and fashion requirements deteriorate

Engineering Contradiction:
Improvevital function monitoring capabilityVSAvoidaesthetic appearance
Core Design Contradiction:
Adaptability or versatilityVSShape

Solution Approach 1:

The smartwatch functionality is segmented into a separate detachable patch that can be attached to traditional watches. The patch contains all necessary sensors and electronics for vital function monitoring, while the traditional watch case maintains its aesthetic design. This allows users to separate the functional and aesthetic components.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A detachable patch serves as an intermediary component between the traditional watch and the smart monitoring functionality. The patch can be attached to or removed from the watch, providing smartwatch capabilities when needed while allowing the traditional watch design to remain visible and aesthetically pleasing.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Shape

If a traditional watch is used for aesthetic purposes, then fashion requirements are satisfied, but continuous vital function monitoring capability is lost

Engineering Contradiction:
Improveaesthetic appearanceVSAvoidvital function monitoring capability
Core Design Contradiction:
ShapeVSAdaptability or versatility

Solution Approach 1:

The system transitions from a static traditional watch to a dynamic configuration where a functional patch can be attached or removed. This allows the watch to dynamically change its capabilities - providing vital function monitoring when the patch is attached, and maintaining purely aesthetic function when the patch is removed.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The traditional watch becomes a universal platform that can serve multiple functions: purely aesthetic display, vital function monitoring, or both combined. The detachable patch provides the monitoring functionality that can be activated when needed, making the watch system multi-functional without permanently altering its appearance.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If a smartwatch is designed with integrated sensors and electronics, then vital function monitoring is enabled, but device complexity increases

Engineering Contradiction:
Improvevital function monitoring capabilityVSAvoidintegration complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The complex smartwatch functionality is segmented into a separate, self-contained patch module. This patch includes all necessary sensors, batteries, and electronics in a single integrated unit that can be attached to or removed from the traditional watch case, simplifying the overall system architecture.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The complex electronic components and sensors are extracted from the traditional watch design and placed into a separate detachable patch. This extraction allows the traditional watch to remain simple and aesthetically pleasing while the patch contains all the necessary complexity for vital function monitoring.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentEP4659665A1Patch for a wristwatch and/or bracelet, kit, system and method
Publication Date: 2025.12.10 FORBENCAP GMBH
  • EP4659665A1 patent drawingFigure 1
  • EP4659665A1 patent drawingFigure 2
  • EP4659665A1 patent drawingFigure 3

AI summary

Patch (12) for a wristwatch (10) and/or a user's wristband, comprising: means for attaching, in particular reversibly, (26) to the wristwatch (10) and/or the wristband; at least one sensor (30) for detecting at least one vital function of the user; and preferably at least one further sensor (32) for detecting a geographic position and/or at least one acceleration of the user.