Bluetooth Low Energy

BLE Design & Engineering for Connected Medical Devices

We develop BLE for products where the wireless decision shapes everything around it, from the security model to the regulatory record.

Discuss Your BLE Challenges

A group of medical devices like an implant, mobile phone, and a laptop display patient data while wirelessly signaling each other.

BLE Connected Systems, Engineered as One.

Design

Where BLE gets hard

Decisions to Get Right, Failures to Resolve.

Both kinds cross layers, which is why neither stays where it starts.

Connectivity Strategy

The connectivity approach you choose now is the call you're least able to reverse later.

Common Scenarios:

Choosing between BLE, Wi-Fi, and cellular for the use case
The GATT and security model is about to lock before the product
The protocol needs to handle features that aren’t built yet
Connectivity architecture is being set before FDA security expectations are clear
One radio may not cover the range and topology the product needs

Feasibility & Risk

Before you commit real capital, you need to know the wireless will actually work in your use case.

Common Scenarios:

BLE isn’t proven against range, latency, and power budgets in the RF environment
Device-to-cloud reliability is unproven against real-time and security demands
The wireless approach may not fit the power, size, and cost envelope
The architecture hasn’t been validated before full development commits
The concept needs proving before major capital goes in

Protocol Architecture

The protocol architecture you choose early is the thing you'll most regret getting wrong.

Common Scenarios:

GATT changes break app compatibility or force coordinated releases
Firmware and app state drift out of sync during edge cases
Protocol architecture limits the ability to add features
A layer designed for a prototype hasn’t scaled with the product
Application logic baked into GATT causes characteristic bloat

Security & Bonding

A device that pairs cleanly can still break its bond across reconnections, firmware updates, and OS changes.

Common Scenarios:

Devices pair but fail to reconnect securely after bonding
OTA firmware updates break existing bonds
Security behavior differs between iOS and Android
Authentication or encryption gaps flagged in compliance review
Bonding edge cases that only surface in production

Throughput & Performance

Lag, dropped notifications, and slow transfers usually trace to configuration choices spread across the protocol stack.

Common Scenarios:

Data transfer is slow or inconsistent
Performance degrades as more devices connect
UI feels laggy during BLE communication
Background processing on mobile stalls data flow
Power and performance goals are in tension

Connection Reliability

Connections that pass on the bench fail in production for reasons no single layer reveals.

Common Scenarios:

Reconnection behaves differently across phone models and OS versions
Idle disconnects with no clear cause
Connections degrade when multiple devices are active at once
Timing conflicts between BLE and other wireless radios
Drops under load or in noisy RF environments

Cross-Platform Debugging

The hardest BLE bugs span firmware, mobile, OS, and timing, so no single team owns the root cause.

Common Scenarios:

Bugs appear only in production or on specific devices
Behavior shifts with timing, state, or OS version
Teams disagree on where the bug lives because it spans layers
Failures tied to OS updates with undocumented BLE changes
Test coverage misses the cross-layer interactions where failures occur

Tell Us About Your Challenge

OUR APPROACH

We Engineer BLE as a System Problem.

How we think about BLE shapes everything we engineer for it.

The Problem

BLE gets handed off as connectivity. You own what it touches.

BLE looks like a connectivity problem, so it gets handed to whoever owns connectivity. The specialist delivers working Bluetooth and moves on. The architecture is set before anyone asks what the mobile app, the cloud, or an FDA reviewer will need from it, and the failures that follow trace back to decisions no one revisited.

Illustration showing a mobile app interface connected to firmware, cloud, and device layers within a connected product ecosystem

How We Engineer It

So we decide it with the whole system in view.

A GATT structure shapes what the mobile app can do. A connection interval shapes battery life. A bonding flow shapes the security posture a regulator will review. We make those calls with the firmware, mobile, cloud, and security layers already in view, because the same engineers build those layers too.

What this looks like in practice:

Connection parameters tuned against the device’s real clinical and RF environment, not the bench
Bonding and pairing flows that survive firmware updates and OS changes across iOS and Android
GATT architecture that absorbs new features without breaking app compatibility
Wireless security documented for FDA review as the work happens, not assembled after
Cross-layer bugs traced to their actual root cause instead of handed between teams

The Results

The wireless behavior you ship is the behavior you engineered.

The connectivity layer stops being the place problems hide. BLE decisions hold up because they were made with the whole system in view, and the wireless behavior your device ships with is the behavior you engineered, not the behavior you inherited.

Why teams trust us

The Track Record Behind The Engineering.

Earned in programs and tools where the work has to hold up.

Protocol Depth

Fifteen years building at the BLE protocol level.

Our BLE expertise started with the protocol’s earliest commercial adoption and has deepened across hundreds of connected device programs.

We engineer across BLE, Wi-Fi, and cellular, and we understand how protocol-level decisions propagate through firmware, mobile, cloud, and security.

That depth is why we solve problems that teams working at a single layer can’t isolate.

An embedded chip in a medical implant with regulatory checklist next to it.

Proven where it counts

BLE in production medical devices, cleared and shipping.

Our BLE runs in Class III implantables, active therapy systems, and point-of-care diagnostics deployed in the field today.

We engineer it to FDA and IEC 62304 from the first connection parameter, with traceability, risk control, and documentation generated as the work happens.

That’s why the wireless we deliver comes with the documentation FDA review demands, generated at the system level where connectivity decisions get scrutinized.

COMMUNITY TRUSTED

We built the tool BLE engineers rely on every day.

LightBlue, our BLE inspection and debugging app, is used by over 125,000 engineers every month to scan, connect, simulate, and debug devices across iOS, Android, and macOS. We built it for our own engineering needs. It reflects the same protocol-aware, hands-on approach we bring to every BLE engagement.

LightBlue app displaying Virtual Peripheral configuration interface

Explore How We Work

Selected work

BLE Connected Products We’ve Delivered On

Here are a few of the products we’ve supported with Bluetooth Low Energy architecture, troubleshooting, and full-system integration.

Patient using the Inspire Sleep Apnea Therapy System, with implantable device, handheld remote, and mobile app display for tracking therapy and sleep duration.

Inspire Medical

FDA-Approved Implantable Therapy for Obstructive Sleep Apnea

Multi-generational BLE connectivity for a Class III implantable neurostimulator, implemented alongside first-of-its-kind near-field inductive telemetry across the handheld remote and programmer cable. Built to IEC 62304 with an end-to-end security posture, supporting the system from early design through global commercial launch.

Implantable Medical Device

Neuromodulation

Sleep Apnea

IEC 62304

PMA Approved

FDA Class III

Connectivity Architecture

BLE

Systems Integration

Cybersecurity

Inductive Telemetry

Synchron

Implantable Brain-Computer Interface for Patients with Paralysis

BLE connectivity architecture and custom cybersecurity spanning the implantable device and external devices for a first-of-its-kind Class III brain-computer interface. Engaged from an early-generation device to define a connectivity and security foundation scalable through IDE submission, pivotal study, and commercialization.

Implantable Medical Device

Neuromodulation

Paralysis

Brain-Computer Interface

FDA Class III

IEC 62304 Class C

IDE

Systems Integration

Connectivity Architecture

BLE

Cybersecurity

Implantable & External Devices

Osprey Medical

Connected Cath Lab Equipment for Angiography Procedures

BLE connectivity linking a control tablet to multiple DyeVert units in a high-RF, high-interference cath lab environment. Diagnosed RF performance issues and redesigned the antenna for reliable wireless operation, then built remote device management into the next-generation system.

Connected Clinical Device

Contrast Management

Cardiology

Cath Lab

FDA Class II

510(k) Cleared

IEC 62304

Systems Integration

Connectivity Architecture

Wi-Fi

BLE

RF/Antenna Design

MDM

Remote Device Management

PNQ Health

FDA-Cleared iOS App for a Tinnitus Therapy Device

BLE connectivity architecture linking a native iOS application to a non-invasive in-ear therapy device, with a compliant data security model for a Class II SaMD. Delivered from product definition through 510(k) clearance on an accelerated timeline without compromising regulatory rigor.

Clinical Software (SaMD)

Audiology

Tinnitus

BLE

FDA Class II

510(k) Cleared

IEC 62304 Class B

Connectivity Architecture

BLE

Native iOS

Cybersecurity

Explore All Our Work

GO DEEPER ON BLE

The BLE References Our Own Engineers Reach For.

These are the in-depth guides our engineers use to make connectivity, security, and architecture decisions on real programs.

Bluetooth Low Energy (BLE)

BLE Connectivity Architecture: The Ultimate Guide

Designing robust BLE connectivity across embedded, mobile, and cloud systems is complex. This guide breaks down key decisions and tradeoffs that impact performance, reliability, and user experience in connected medical device ecosystems.

Bluetooth Low Energy (BLE)

BLE Security: Where to Begin When Creating a Connected System

Start BLE security planning early by understanding pairing modes, bonding options, threat modeling, and tradeoffs that shape secure, reliable connected systems.

Bluetooth Low Energy (BLE)

The Ultimate Guide to Managing Your BLE Connection

Master connection timing, targeted advertising, and graceful disconnects to ensure responsive, reliable BLE devices, with practical techniques that let developers decide precisely when and how devices pair in production environments.

Explore More BLE Resources