Wearable physiological monitoring devices

Inventors

Barker, Nicholas EvanMuhsin, BilalKiani, Massi Joe E.

Assignees

Masimo Corp

Publication Number

US-12362596-B2

Publication Date

2025-07-15

Expiration Date

2042-08-17

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Abstract

A wearable device including at least one sensor configured to sense a physiological parameter of a user. The wearable device including a base housing and a removable housing attachable to the base housing. The base housing and the removable housing portions each including a battery and an electronic subsystem in communication with each other. The battery of the removable housing portion charges the battery of the base housing portion when the removable housing portion is attached to the base housing portion. A second embodiment includes two or more fitness trackers each having an enclosure. The enclosures of the two or more fitness trackers having complimentary shapes that form a unified enclosure when the enclosures are placed adjacently. In a third embodiment, a wearable device includes a first screen display and a second screen display. The second screen display is transparent in at least one operational mode of the wearable device.

Core Innovation

The invention relates to wearable devices configured for monitoring physiological parameters of a user and providing improved charging methods. The core innovation includes a multi-part wearable device having a base housing portion—positionable on the user's limb with sensors—and a removable housing portion that attaches to the base. Each portion contains a battery and an electronic subsystem, with the removable housing's battery charging the base housing's battery when attached. This design allows continuous physiological monitoring even while the removable portion is charging separately.

Furthermore, the invention discloses systems comprising multiple fitness trackers, each having complementary enclosure shapes that enable them to interlock and form a unified appearance when placed adjacently on the user's limb. This modular approach allows a user to select specific fitness functionalities by combining trackers with discrete capabilities, reducing bulk and enabling aesthetic customization.

Additionally, the invention addresses the need for wearable devices capable of displaying certain functionalities more persistently while saving power. A wearable device embodiment includes a first screen for interactive display and a transparent second screen overlay that can be switched between displaying low refresh rate images (like an analog watch face) and becoming transparent to reveal the interactive display beneath. This dual-display system conserves power by maintaining essential information visible in low power mode.

The problem being solved, as described in the background, is the limitation of existing smartwatches and wearable devices that require disconnection during charging, resulting in a loss of capability to monitor physiological parameters continuously. There is also a recognized need for wearable fitness trackers having only selected, user-chosen functionalities that can be combined efficiently while maintaining an aesthetic and less bulky form factor. Moreover, the invention caters to the demand for wearable devices that can display frequently needed information, such as time or step counts, in an always-on or low power display mode.

Claims Coverage

The patent contains one independent claim detailing the structural and functional configuration of a wearable device with a removable housing for battery charging and display visualization, capturing key inventive features.

Wearable device with a main body and removable housing for charging

The device comprises a main body configured for placement on a user’s limb with a display on the top surface and two input electrodes on the bottom surface. A removable housing with a second battery and attachment legs engages the main body. The removable housing includes output electrodes positioned to contact the main body's input electrodes when secured.

Battery charging via electrode contacts

When attached, the second battery in the removable housing charges the first battery within the main body through electrical connections formed by the first and second input and output electrodes.

Visualization through removable housing opening

An opening along the top surface of the removable housing permits visualization of the main body’s display when the removable housing is attached.

The claims principally cover a modular wearable device structure wherein a removable housing with a battery physically and electrically connects to a main body with sensors and a display. The removable housing charges the main body’s battery through defined electrode contacts while permitting display visibility through an opening, providing a novel charging and operational configuration.

Stated Advantages

Enables continuous physiological monitoring even while the main battery is charging by dividing the device into a base portion and removable housing portion.

Allows users to customize fitness tracking functionalities by combining multiple smaller, function-specific fitness trackers that interlock to form a unified and aesthetically pleasing device.

Reduces device bulk and improves aesthetic appearance compared to conventional smartwatches by modular and decorative design.

Provides low power display modes with a transparent overlay to show essential information like time persistently, conserving battery life.

Permits charging of the wearable device via a removable battery pack attached to the device body, enabling charging while worn.

Documented Applications

Wearable smartwatches and fitness trackers for continuous physiological monitoring including heart rate, blood oxygen saturation, temperature, and motion.

Modular fitness tracking systems where users select and combine multiple fitness trackers each adapted to measure different physiological parameters.

Wearable devices with dual display modes—an interactive OLED display for dynamic user interaction and a low power e-ink display for always-on time display and other metrics.

Removable battery packs used in wearable devices to enable charging without removing the wearable from the user.

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