Bluetooth Medical Applications

Originally Published MDDI June 2004

Electronics

Several applications were presented in the medical panel at the Bluetooth Americas 2003 conference. A sampling of these demonstrates the breadth of capabilities and solutions that can be achieved in medical devices with Bluetooth wireless technology. Some of these applications are highlighted below.

Stryker Endoscopy Sidne. The Stryker system is the first in-hospital system incorporating Bluetooth to receive 510(k) clearance. Bluetooth is used to eliminate cabling from the controller unit to devices at the operating table. It eliminates cabling issues caused by debugging and replacement, which can lead to downtime of the operating room. The Sidne application uses 802.11b technology as well as Bluetooth for high-bandwidth data (images).

Zoll M-Series Defibrillator/Monitor. The Bluetooth accessory in this device enables transmission of 12-lead and vital-signs trend reports to a PDA. It eliminates memory cards and enables emergency services personnel to remotely transfer data and reports. This device is used in a battery-constrained environment where cabling is not only a nuisance, but also presents a hazard to patients and caregivers.

GE Medical Achilles DexterQUS. This device involves measurements taken at floor-level on a patient's foot or heel. Bluetooth allows the GE system to be used at the patient's level instead of needing to be on the floor. The PDA software facilitates data entry and report printing without wires. The wireless interface also allows for data to be downloaded to a PC for data archiving and future retrieval. This enables caregiver mobility using an off-the-shelf PDA and eliminates bothersome and hazardous cabling.

Nonin Pulse Oximeter. The Nonin system eliminates the need for a wire between the patient and a portable monitor, which allows patient mobility within Bluetooth's 10-m radius. The battery life for continuous monitoring exceeds 4 days, eliminating frequent charging or battery changes. The Nonin system exemplifies how Bluetooth can enable highly mobile sensor-based applications.

RTX Healthcare Wireless TeleHealth.The RTX components facilitate systems for monitoring the weight and blood pressure of patients in their homes. The measurement devices interface to a home gateway allowing remote downloading of collected data. Mobility and interfacing to industry standards are key elements of the system.

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