EKG Machines

December 15, 2017
EKG Machines - Soma Technology, Inc.

EKG Machines - Soma Technology, Inc.

EKG/ECG Machines


The trace/waveform on an EKG machine has become synonymous with the iconography of healthcare. Many companies use this pattern to identify an association with medical care; you can even find it in our Soma logo! Cartoons and television shows use a flat line to show that someone has passed. However, reading these machines, and the doctors and nurses who use them, have a slightly more complicated role to play in health care.

An EKG is an electrocardiogram. The National Heart, Lung, and Blood Institute describes EKGs for use in diagnosing heart blockage. Each time the heart pumps, it sends an electronic signal. The EKG machine records how often one of these electronic signals are sent. “In a healthy adult heart at rest, the SA node sends an electrical signal to begin a new heartbeat 60-100 times a minute.” After the signal is spread across the ventricles, it is recorded as a P wave. Once the signal passes through the AV node, this is the beginning of the Q wave. This is a noninvasive process. There are typically 12 leads that are put on to the body that result in the electrical signals being graphed on the screen.

An EKG would be used on anyone who is at risk of having cardiac issues. These issues include First, Second, Third Degree Heart Block, Mobitz Type I, and Type II. People who are hooked on to an EKG machine are being monitored for significant changes in their heart function.

Settings Used in an EKG

EKG’s are used in any setting where the heart needs to be monitored. This includes Emergency Rooms, Intensive Care Units, Operating Rooms, and surgical centers. EKGs are almost exclusively never used alone; always in conjunction with other machines, including patient monitors.


An EKG Machine is generally used on people with a heart murmur, arrhythmia (irregular heartbeat), myocardial infarctions (heart attacks), and for seizures.

Different EKG machines

MAC 5500 HD

GE MAC 5500HD - Soma Technology, Inc.

About the GE MAC 5500HD

The GE Mac 5500HD has advanced disease management capabilities through collections of algorithms and advanced networking. The MAC 5500HD System offers the sophistication required for advanced ECG applications, while its ease of use extends this level of performance to a broad range of possible users. Non-invasive testing solutions designed to maximize patient throughput and department productivity.

GE MAC 5500HD Features

  • Offers advanced algorithms in ECG analysis and interpretation.
  • Easy-to-use applications and features for streamlining productivity and workflow.
  • Enhanced connectivity when combined with Muse Cardiology Information System to speed data storage and ECG retrieval.
  • Digital CAM-HD acquisition module reduces noise and artifact for clearer ECG tracings and improved accuracy in detecting the presence of pacemaker spikes.
  • A large field-of-view (FOV) display that provides a clear view of the screen from any angle.
  • Analog ECG output that facilitates easy integration with other cardiac-diagnostic devices, such as echocardiography and nuclear medicine systems.
  • Extensive customization; including the display and final-report formatting to accommodate individual user preferences.
  • Stress option incorporates GE’s proven exercise-testing technologies. Signal-acquisition advances help reduce baseline wander and ST-segment distortion to generate clearer, more defined ECGs.
  • Barcode and magnetic card reader accessories to help reduce errors by automating the input of patient data.
  • Security protocols and user-configurable password protection to help address data security and HIPAA concerns.
  • Trolley design that features a convenient holder for the acquisition module, ample writing surface area, wide bins, and a covered storage compartment.
  • A compact system designed for easy mobility.

GE Mac 5500HD Specifications:

  • ECG Interpretation: Marquette 12SL ECG Analysis Program for Adults and Pediatrics.
  • Computerized Measurements: 15-lead analysis includes measurements of user-selectable additional 3 leads.
  • Optional: Hi-Res Late Potential Analysis and P-Wave Signal – Averaged ECG.
  • Additional ECG Function: Vectorcardiography.
  • ECG Analysis Frequency: 500 samples/second. (SPS)
  • ECG Storage: 200 ECGs in internal memory.
  • External Archiving: Secure Digital card.
  • Digital Sampling Rate: 16,000 samples/second/channel.
  • Pre-Acquisition: Provides 10 seconds of instantaneous ECG acquisition.
  • Dynamic Range: AC Differential ± 5mV, DC offset ±300 mV.
  • Resolution: 4.88 μV/LSB @ 250 sps, 4.88 μV/LSB @ 500 sps.
  • Frequency Response: –3 dB @ 0.01 to 150 Hz
  • Common Mode Rejection: >140 dB (123 dB with AC filter disabled)
  • Input Impedance: >10MΩ @ 10 Hz, defibrillator protected
  • Patient Leakage: <10 μA
  • Pace Detection: Meets or exceeds ANSI/AAMI EC11-1991 standards
  • Pace Digital Sampling Rate: 75,000 samples/second/channel
  • Pace Pulse Width: as low as 0.2 ms in duration
  • Pace Pulse Amplitude: as low as 0.5 mV in amplitude
  • Special Acquisition Functions: Disconnected lead detection, electrode impedance, excessive AC noise, baseline wander, and muscle tremor messages
  • Heart Rate Meter: 30 to 300 BPM ±10% or 5 BPM, whichever is greater. Heart rates outside this range will not be displayed
  • MUSE Cardiology Information System compatible.
  • CardioSoft compatible – EMR connectivity via MUSE Cardiology Information System or CardioSoft.
  • Serial Cable.
  • Internal modem/fax.
  • Optional:
    • Remote Retrieval. (Remote Query.)
    • MobileLink wireless (requires additional MUSE communications software and installation):
      • Enhanced Security WPA and WPA2 (personal and enterprise modes). PAP, MS-CHAPv2, 802.1xEAP with TLS/ TTLS/LEAP/PEAP/FAST, WEP (PEAP requires network evaluation/approval prior to purchase.
      • Ultra-High Security MobileLink (FIPS 140-2) LAN (requires additional MUSE communications software and installation)
      • Communication with MUSE over LAN thru internal RJ-45 jack
    • LAN (requires additional MUSE communications software and installation.)
      • Communication with MUSE over LAN thru internal RJ-45 jack.
  • Display Type: 10.4 in (264 mm) diagonal graphics backlit color AM LCD.
  • Display Resolution: 640 x 480 pixels with waveform enhancement
  • Display Data: Heart rate, patient name, ID, clock, waveforms, lead labels, speed, gain and filter settings, warning messages, prompts, and help messages
  • Writer Technology: Thermal dot array.
  • Writer Speeds: 5, 12.5, 25, and 50 mm/s.
  • Number of Traces: 3, 6, 12, or 15 user selectable.
  • Writer Sensitivity/Gain: 2.5, 5, 10, 20, 10/5 (split calibration) mm/mV.
  • Writer Speed Accuracy: ±2%.
  • Writer Amplitude Accuracy: ±5%.
  • Writer Resolution: Horizontal 1000 dpi @ 25 mm/s, 200 dpi vertical.
  • Paper Type: Thermal, Z-fold, perforated, fanfold, 300 sheets/pack.
  • Paper Size: A Size: 8.5 in x 11 in. (214.6 mm x 280 mm.)
  • Type: Sealed elastomer with soft function keys, alphanumeric keys, writer controls, and TrimPad cursor controls
  • Power Supply: AC or battery operation.
  • Voltage: 100 to 240 VAC.
  • Current: 0.5A @ 115 VAC, 0.3A @ 240 VAC, typical, 0.85A max.
  • Frequency: 50 to 60 Hz
  • Battery Type: User replaceable, 18V @ 3.5 AH ±10% rechargeable NiMH.
  • Battery Capacity: 100 single page reports, (typical) or six hours continuous display. (without printing.)
  • Battery Charge Time: Approximately 4.5 hours from total discharge. (With display off.)
  • Report Formats: Vector loops of component vectors (P, QRS, ST-T)
  • Sensitivity: 20, 40, 80, or 160 mm/mV.
  • Time Resolution: 2 ms.
Hi-Res Late Potential Analysis and P-Wave Signal– Averaged ECG
  • Sensitivities:
    • Raw Data Template.
    • Average Beat.
    • Filtered Signals and Vector Magnitude.
    • 20 mm/mV.
    • 20 mm/mV and 50 mm/mV.
    • 1 mm/μV.
  • Analysis Sampling Rate: 1,000 samples/second/channel.
Physical Specifications
  • Height: 3.7 in (9.4 cm)(Without Trolley.) with the display closed.
  • Width: 15 in (38.1 cm)(Without Trolley.)
  • Depth: 13.8 in (35.1 cm)(Without Trolley.).
  • Weight: Approximately 6.8 kg (15 lbs)(Without Trolley.) Including battery, without paper.
Environmental Specifications
    • Temperature:
      • Operating
      • Transport/Storage
      • 50°to 104° F. (10° to 40° C.)
      • –40°to 158° F. (–40° to 70° C.)
      • Operating.
      • Transport/Storage.
      • 20% to 95% RH non-condensing.
      • 15% to 95% RH non-condensing.
    • Operating.
    • Transport/Storage.
    • 700 to 1060 hPA.
    • 500 to 1060 hPA.
Magnetic Card Reader Specifications
  • Character Set: ANSI/ISO ALPHA alphanumeric characters and ANSI/ISO BCD. (subset of ASCII [ISO 646 IRV:1991])
Bar Code Scanner Specifications
  • Symbologies: Code 39 (extended), PDF-417, Code 128, Data Matrix, Interleaved 2 of 5.
Modular MAC Trolley Dimensions
  • Height: 37 in. (94 cm.)
  • Width: 19 in. (47 cm.)
  • Depth: 27 in. (69 cm.)
  • Height with Acquisition module holder: 59 in (150 cm) Weight
  • Weight: 66 lbs. (30 kg) (Without Resting ECG System)

Philips PageWriter Touch

Philips PageWriter Touch - Soma Technology, Inc.

Philips PageWriter Touch Features

The Philips PageWriter Touch EKG makes it easy for users to record, analyze, print, store, and transmit ECG data. Designed for use in large hospitals, the PageWriter Touch makes every part of the cardiac testing process much simpler. The design of the patient module guarantees the lead-wires won’t get tangled. The PageWriter Touch includes a large, high-quality touch screen to easily view data. It’s also print-ready with interpretation, ECG snapshots, and lead quality checks.

  • Easy, Fast, 12-Lead ECGs for Large or Small Hospitals
  • Designed for high volume
  • High-resolution touch screen
  • Preview reports before printing
  • Wireless communication

Philips PageWriter Touch Specifications

ECG Acquisition
  • ECG signal acquisition of up to 12 leads for both adult and pediatric patients
  • R/T (real-time) 12-lead display with ECG “snapshot” feature: – Take ECG snapshots of any data on the screen with the touch of a button – Review snapshots and print ECG reports in a variety of formats
  • AUTO 12-lead acquisition
  • RHYTHM display and printing (up to 12 leads)
  • DISCLOSE five minutes of continuous waveform data for review and printing
ECG Quality Monitor
  • Extensive ECG quality indicators include AC noise filtering, in addition to artifact filtering and baseline wander correction
  • Color-coded real-time waveform display and loose electrode alerts provide instant quality feedback to the user
ECG Memory and Transfer
  • The PageWriterTouch cardiograph provides storage memory for ECGs and easy transfer by floppy disk, modem or LAN connection to an ECG management system
  • Each recorded ECG is automatically indexed on the cardiograph for quick review and retrieval
  • A list of all stored ECGs can be printed, facilitating administrative reporting and billing
  • The optional modem allows for quick transmission to a fax machine or an automated ECG management system. ECGs may be transmitted for management, physician review, and copying
ECG Interpretation
  • The PageWriterTouch cardiograph includes the Philips 12-Lead Algorithm for interpretive analysis of the amplitudes, durations, and morphologies of ECG waveforms and associated rhythm for adult and pediatric patients
  • This clinically proven interpretation program provides configurable levels of interpretive, reason, and severity statements that are printed on the ECG report
Print Preview Capability
  • Full-screen preview of ECG reports exactly as they appear when printed allows for quality assessment checks prior to printing
  • Multiple report formats may be applied to any ECG, with full preview of reports before printing

ECG/EKG System Refurbishment Process

Soma Technology is a leader in refurbished capital medical equipment. Soma Technology has been in business for over 26 years and looks forward to excelling in the medical refurbishment market. Not only does Soma Technology technically refurbish their products, they also cosmetically refurbish. Each product is fully tested and brought back to their OEM standards through; disassembly, inspection, cleaning, repair, replacements of necessary parts, calibration, and special cosmetic restoration. These products are able to function as if they did the day they left the manufacturer. Soma has a team of specified biomedical engineers to work on each equipment before it leaves our facility that ensures each product functions and looks the way the OEM intended.

Not only does Soma Technology refurbish and offer service on EKG and ECG Machines, Soma also offers these services on a wide range of medical equipment from top manufacturers like GE, Philips, Drager, Physio-Control and more! If you have any questions or just looking for a quick quote on any product give us a call at 1-800-438-7662 where you can talk to a knowledgeable sales representative.

Why choose refurbished? Cost is the biggest deterrent to buying new medical equipment. Buying refurbished capital medical equipment allows the buyer to acquire about two refurbished devices at the cost of one new one. This helps smaller hospitals with their budget, and help compete with larger hospitals. There is a big difference between used and refurbished equipment. Used equipment implies that the equipment comes “as is” from the previous owner. Used equipment has an assumed connotation of being mishandled, broken, and/or does not function properly.

Refurbished equipment is different. The devices are brought to our state of the art facility. Our team of biomedical engineer’s test and calibrate the equipment to be brought back to OEM specifications. Parts that need to be replaced are replaced, thanks to Soma’s large inventory of parts, which can be found at somamedicalparts.com. After these devices are fixed, they are cosmetically enhanced. The equipment is sanded, painted, and outfitted with new stickers and decals. Finally, the refurbishment process is complete after the medical equipment is packaged up and ready to ship.

Service Your EKG Machines

Soma Technology has a certified team of biomedical engineers that repair your medical equipment. Our team of engineers are available with preventative maintenance, warranties, and lifetime phone support.

Contact Your Sales Rep

We have a valued team of sales representatives who are more than willing to assist any needs. We have a wide selection of other capital medical equipment including Imaging, NICU, Ventilators, Infusion Pumps, Patient Monitors, Anesthesia Machines, Surgical Tables, C-arms, and far more new and refurbished medical equipment. Please remember to contact Soma Technology, if you have questions about any of the pieces of equipment in this article or on our website.

Sell To Us

While Soma is mostly known as a refurbisher of equipment, we also have our purchasing department actively looking to buy used medical equipment. Are you looking to sell used medical equipment? Your equipment could go through our refurbishing process. First, you can submit a request to sell your equipment. A representative will contact you within 24 business hours. Then you will confirm your agreement with your representative. This process is HIPAA compliant.

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