Medical Applications User Guide (pdf) - Freescale Semiconductor

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Hospital Admission Machine 15.1 Introduction With the increasing prevalance of technology in the medical market, administrators are open to infusing that technology into hospitals to help increase the quality of service. Automated hospital admission machines, tracking devices/bracelets and automatic inventory control are just some of the applications the medical team is working on at Freescale. By leveraging our strengths in Vybrid Controller Solutions, Kinetis MCUs, ColdFire MCUs, and i.MX processors, wireless communications and PowerQUICC network processing, Freescale strives to bring connected intelligence to hospitals. 15.2 Hospital Admission Machine A hospital admission machine helps patients and doctors increase the efficiency of a hospital through automating procedures which usually take time from the nurses and administrative employees. These solutions need to integrate a broad range of medical devices in order to perform necessary functions for the physician and increase the range of early diagnosis/ symptoms and signs that can alert medical staff to acute complications in patients being monitored at home (using portable mode) or in specific strategic places such as malls (using medical kiosks). 78 Medical Applications User Guide
State-of-the-art technology—including integrated MCUs such as Freescale’s Kinetis 8-bit 9SS08MM, and 32-bit MCF51MM— allow the designer to achieve portability for touch sensing and medical-grade communication (following Continua Health Alliance guidelines) with libraries that are downloadable from freescale.com/medical. These elements enable solutions focused on preventive medicine, which ultimately reduce patients’ acute complications and costs related to their treatment. This can help health institutions redirect money used for treatment toward prevention and can help insurance companies cut costs. The hospital kiosk includes a touch-sensing interface that allows the user to navigate the machine’s interface. This flat surface makes the machine easier to disinfect after each user. It is more difficult to disinfect a machine with mechanical buttons that can hold pathogens such as bacteria and viruses in the edge of the buttons. The kiosk includes a magnetic card reader used to identify the patient and to keep a record of the patient’s abbreviated e-chart. The e-chart contains the following data: • ID fields: First name, last name, birth date, gender, contact information • Family medical history: Cancer, cardiovascular disease, chronic degenerative diseases such as arthritis, kidney disease, asthma, neurological disorders, etc. • Personal medical history: Medicines, surgeries, diseases, etc. • Non-pathological personal history: Blood type, alcohol and tobacco use, drug abuse, allergies, etc. Once the patient is identified through the magnetic card, the machine can take the following measurements: • Capillary blood glucose levels • Systolic, diastolic and mean arterial pressure • Weight, height and body mass index • Temperature • Heart rate • EKG DI • Oxygen saturation level (SaO2) • Maximum expiratory and inspiratory flow peak • Inspiratory and expiratory lung volume After this information is entered, a test result paper is printed and a remote database is updated with these readings. If the kiosk detects a critical problem, it sends the report to a mobile device that could report the finding to a physician or health care provider. A step-by-step video shows how to perform these tests so that the user can perform the tests without help from a health care professional. With language support in English, Spanish and Japanese, the user sees and hears how to perform these tests. As users become more familiar with the device, they may pay less attention to the instructions. This is why we also offer the patient monitor interface. Diagnostic and Therapy Devices Figure 15-1: Hospital Admission Machine General Block Diagram Hospital Admission Machine Height Ultrasonic Sensor Electronic Wireless Patient’s Chart Pulse Oximetry/ Heart Rate/ Glucometer Digital Weight Freescale Technology Optional Blood Pressure Monitoring For an easy-to-use mode, the main core of the kiosk can be separated. This creates a USB-powered portable device for home use or use at remote facilities when a physician is not nearby. The following sections describe the parts of the system (some of them have already been described in previous chapters): • Weight scale • Height ultrasonic sensor • Thermometer • Blood pressure monitor (systolic, diastolic, mean arterial pressure) • Heart rate monitor • One-lead EKG (DI) • Pulse oximeter • Blood glucose meter • Spirometer (air flow and lung volume) freescale .com/medical 79 ITO Glass Electrodes USB LEDs RS-232 Xcvr Secondary MCU Ethernet PHY(100 Mbps) USB Power Switch Buzzer 4 x 5 Keypad Matrix BDM Keypad or Touch Screen Figure 15-2: Analog Configuration for LEDs and Buzzer Figure 14-2: Analog Configuration for LEDs and Buzzer 330Ω A K o.1 uF 120Ω 1kΩ Display MCU/MPU 32 MB DDR SDRAM Backlight Inverter Level Shift Xcvr Wireless Comm Power Management Non- Volatile Memory
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Medical Applications User Guide TM
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freescale.com/medical 3 Introductio
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Introduction 1.1 Freescale Offers T
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Monebo Kenetic ECG Algorithms Free
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Home Portable Medical 2.1 Introduct
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3.2 Home Health Hub (HHH) Reference
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3.19 Standard Medical USB Communica
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