Smiths Medical Medfusion 3500

November 30, 2017
Smiths Medical Medfusion 3500

Medfusion 3500

What is a syringe pump?

A syringe pump or a syringe driver is a small infusion pump. They are used to deliver small amounts of fluid to a patient. Syringe infusion pumps are used in a wide variety of applications. The Medfusion 3500 can be used in; critical care, anesthesia, neonatal, and pediatric settings. Using syringe pumps avoid the uses of multiple tablets, mainly for patients that have trouble swallowing. Syringe pumps are primarily used for delivering IV medications over several minutes. Smiths Medfusion 3500 is designed to be safe, simple, and smart; featuring delivery rates as low as 0.01 mL an hour. Designed with clinicians in mind, the Medfusion model 3500 has a variety of delivery modes that are customizable with a user-friendly interface.

About Smiths Medical Medfusion 3500

Refurbished Medfusion 3500 - Soma Technology, Inc.The Medfusion 3500 syringe pump delivers safe infusion volumes to +/- 2% accuracy with a maximum delivery rate of 1130 mL per hour. This infusion pump comes standard with PharmGuard Medication safety software. This software helps reduce programming errors by encouraging the use of drug libraries with hard and soft limits. It features unmatched pressure sensing technology for early clinical intervention with FlowSentry. The syringe pump automatically detects various syringe types and sizes ranging from as small as 1 mL to as large as 60 mL. The auto-detectable syringe list can be updated to current syringe models from top manufacturers. To help reduce clinical errors the model 3500 syringe pump features a high visibility display with TALLman lettering that shows the complete drug name; helping to differentiate similarly named drugs. Hard and soft limits can be set by your pharmacist, for each drug and profile to rid medication errors. It is user-friendly in that it features an easy-to-use, ergonomic, horizontal design while allowing for single-handed loading of the syringe.

Infusion Modes

Some of the fluids that can be administered with the Smiths Medfusion 3500 are blood or blood products, lipids, drugs, antibiotics, enteral solutions, or other therapeutic fluids. These fluids can be delivered by the following routes; arterial, epidural, intravenous, intrathecal, subcutaneous, and enteral. This syringe pump model can also deliver in the following modes; continuous, volume/time, mass, body weight, intermittent, and bolus. This is the perfect multi-solution syringe pump for a hospital or surgical center.

Connections and Alarms

Medfusion 3500 Infusion Pump - Soma Technology, Inc.A pole clamp can be attached to the device to mount it wherever necessary. It features an infrared RS232 connection port allowing data to downloaded onto a computer. The model 3500 has many built-in alarms that are triggered by situations as a means of warning or advising that something is not functioning within normal parameters. These alarms are separated into five different types; system fault priority, high priority, medium priority, low priority, and limit priority. System fault priority is initiated when one of the system fault conditions occur. Fluid delivery stops and system fault alarm is signaled with flashing red indicators. When this occurs, the syringe pump will return to the main screen with only the Biomed menu showing. If the alarm continues after restarting the pump, it must be removed from service for inspection or repair. Soma Technology offers service on the Medfusion 3500 and has trained biomedical technicians to inspect and repair the device. A high-priority alarm is initiated by any condition that halts a current infusion. After the alarm signals, the delivery of loading or bolus doses will not return to the “Begin Delivery” screen until the alarm is silenced, allowing you to record the portion of the loading/bolus dose delivers prior to the alarm sounding. A medium-priority alarm indicates any condition requiring intervention but does not halt infusion. These alarms are signaled with a yellow flashing indicator. Low-priority alarms indicate any condition not requiring immediate attention. This alarm has a continuous yellow indicator on the pump. Lastly, the limit priority alarm provides user feedback related to interaction with the pump. This is a customizable alarm that the user can change the loudness of or even turn completely off. Although the alarm sound can be turned off, the pump will still display the messages on its screen. Please refer to the Medfusion 3500 operating manual for more information about each of these alarms and what they mean. Although the pumps are typically operated by AC power, the pump features a rechargeable battery that is continually charged while connected to AC power. Typically, a fully charged battery will operate the pump for at least 6 hours when running a continuous rate of 5 mL an hour using a 60 mL syringe.

Features and Usability

The Medfusion 3500 offers many different features in the system. This pump has the ability to recall the last settings for a quick and easy setup. Any optional Volume Limit, KVO, Bolus Dose, or Loading Dose settings are retained in the systems settings when this feature is used. Clinicians can reuse the same delivery settings to repeat an identical dosage of medication or fluids to a patient. This device can even be programmed to only allow a specific syringe size and model depending on the drug program specified. This helps reduce programming errors and increase user-friendliness. Even loading the syringe is easy! Lift up the barrel clamp, squeeze the plunger release, and load the syringe. Make sure everything is secured and the pump recognizes the correct syringe. This syringe pump offers a Bolus dosing. A Bolus dose is a separate delivery that pauses the main infusion, delivers the Bolus, then returns to the main infusion when completed. Bolus dosing is an optional parameter of continuous delivery modes. Another option available for continuous delivery modes is volume limit. Upon delivering the pre-set volume, the pump stops or changes to KVO if that has been programmed. This pump also features rapid occlusion detection technology with FlowSentry. FlowSentry is a broad array of pressure-related safety features. All of these pressure related safety features rapid response time and reduces false alarms.


Smiths Medfusion Model 3500 is versatile. It is very portable weighing only 3.8 pounds (1.7 kilograms).  The 3500 is only 5.1 inches high (13 centimeters), 10.5 inches wide (27 centimeters), and its depth is only 5.5 inches (14 centimeters). Internally it has an IPX3 moister protection rating and a Type CF electric shock protection. It features a nickel metal hydride rechargeable internal battery that can last at least 6 hours in certain delivery modes. A brand-new battery can last about 500 full charges, or 2 years, whichever comes first. This pump is extremely accurate with a nominal delivery accuracy of +/- 2%. It is important to take into consideration this accuracy when administering certain fluids.

Is the Medfusion Model 3500 MRI Compatible?

Smiths Medfusion 3500 Syringe Pump - Soma Technology, Inc.Is the Model 3500 pump safe to use in an MRI environment? This Medfusion pump is considered MR conditional. MR conditional means the device will not present a hazard or risk to the patient or the magnetic resonance user. It will not significantly affect the MR image quality if the pump is operated correctly. In non-clinical testing, the Medfusion 3500 showed no attraction force at 150 gauss static magnetic field strength. It is also important to note that the pump functioned normally as 150 gauss static magnetic field strength. During this test, there was no MR imaging interference while the pump was 8 feet away operating on its battery. Of course, all MRI systems vary in scanning systems and receivers. To help minimize the possibility of image artifacts appearing in the MR image, ensure that the back of the pump faces the MRI isocenter during operation. Be sure that the Pump is operating on battery power, and if artifacts appear, move the pump further away.


Need to clean the Medfusion 3500 syringe pump? To avoid electrical shock, before cleaning, always turn the pump off and disconnect from the AC power source. Using a 70% isopropyl alcohol solution or a 1:6 diluted bleach solution is the top recommended cleaning agents to clean the pump. To clean the pump, spray a soft cloth with the cleaning agents and wipe down the pump. Directly spraying the pump could cause the cleaning solution to pool and cause damage to the device and its components. It is important to note that the pump is spray resistant and not waterproof, so it is not safe to submerge or use in an autoclave.

Why choose refurbished equipment from Soma Technology, Inc.?

Soma Technology is a leader in refurbished capital medical equipment. Soma just celebrated 25 years in business and looks forward to excelling in the medical refurbishment market. Soma Technology not only technically refurbishes their products, they also cosmetically refurbish them as well. Every 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 specific biomedical engineers to work on each equipment before it leaves our facility, ensuring every product functions and looks the way the OEM intended. Not only does Soma Technology refurbish and offer service on infusion and syringe pumps, 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? The biggest deterrent to buying new is the cost. 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 properly function. Refurbished equipment is far different and much better. 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 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 once they are packaged up and ready to ship.

Section 179 2017 Tax Deductions

As the end of the year approaches, Soma Technology, Inc. wants to remind medical equipment purchasers about section 179. Under Section 179, qualifying businesses can write up to $500,000.00 off their tax benefits for buying capital medical equipment in the year 2017. Companies should take advantage of this law before the December 31st deadline. Soma created a Section 179 2017 Tax Deduction Calculator to help you visualize how much you can save in real dollars. Medical companies should think about their unused budgets, or any future projects, to now place their orders for medical equipment. Leasing equipment is Section 179 deductible, and Soma Technology has many rent and rent-to-own options available. Also, Soma provides a wide range of equipment to outfit operating rooms, surgery centers, clinics, hospitals, and doctor’s offices. Our one-stop-shop allows customers to save time and money by purchasing refurbished equipment at around half the cost as new.


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