Allied Motion manufacturers precision medical motors, drives and position feedback products for a wide range of medical applications from surgical robotics to prosthetics to consumer CPAP machines.
For medical handling and mobility applications Allied Motion provides brush and brushless traction wheel drives, gear motors, drives and actuator components.
All Terrain Tracked Wheelchair
The Trackchair™ is a unique zero-turn-radius, all-terrain wheelchair developed to enable wheelchair-bound people, including veterans, to enjoy the freedom of getting off-road. The Trackchair can go places not previously possible for wheelchair users like woods and beaches, in poor conditions like mud, sand and snow.
Allied Motion’s RAD36 series right-angle DC gearmotors power the Trackchair, enabling it to safely carry up to a 350 lb (159 kg) person at up to 5 mph (8 km/h) while negotiating inclines, depressions, debris and other off-road obstacles and conditions.
Anesthesia Workstation Breathing System Pump
Anesthesia workstations require highly reliable ventilator system components, the most important of which is the bellows subsystem. Modern ventilator subsystems are electrically powered and require no drive gas, which enables them to be more efficient and more precise in pressure and volume delivery than traditional gas-driven bellows ventilators.
Allied Motion answered the call for a longer life, more reliable, lower audible noise, and lower EMI motor solution with its KinetiMax brushless DC motors with integrated drive electronics. The KinetiMax replaces the less reliable DC motor that typically drives the bellows ventilator vacuum pump.
Angiographic CT Contrast Injector Syringe Pump
Angiographic contrast injectors are essential accessories for modern CT scanners. They inject X-ray contrast fluid intravenously, which provides dramatic improvement in the overall quality of CT images of the circulatory system and many soft organs. The enhanced images enable more accurate diagnoses to be made.
Allied Motion brushless servo motors and drives can be used to precisely drive the injector piston to achieve smooth, accurate fluid delivery in contrast injectors.
Bionic Prosthetic Arm
As part of a DARPA program, an Allied Motion customer developed a new anthropomorphic prosthetic limb that gives patients improved, dexterous control of a prosthetic arm and hand, including a sense of touch.
Allied Motion worked with our customer to incorporate 17 different Allied motors (PerformeX and Megaflux) in the joints and fingers of the arm, giving this marvel the size, weight, and strength of a human arm.
Bionic Prosthetic Knee
Allied Motion’s work with bionic limb manufacturers – contributing our expertise in small, efficient motors – helps them develop advanced powered prosthetics.
One example is the Power Knee, the only active prosthesis for above-knee amputees. It employs sophisticated sensor and computation technology plus Allied’s brushless torque motors to give knee amputees, whether the result of combat or other reason, the ability to move more naturally and engage more normally in their daily activities.
Cardiopulmonary Heart Bypass System Pump
Allied Motion designed a magnetically-coupled brushless pump motor to drive a disposable integrated oxygenator module, the "heart" of this innovative heart bypass system. The optimized low-voltage winding of the motor, a version of Allied Motion's Megaflux brushless servo torque motor series, is driven by a custom-designed two-quadrant brushless drive module.
Continuous Passive Motion (CPM) Finger Exerciser
Joint tendon rehabilitation is expedited using motorized robotic devices that continuously exercise the affected digits. Such devices must be easy to use, lightweight, battery powered for ambulatory patients, and enable precise, controlled smooth movements. The continuous passive hand and finger manipulator (CPM) is one example. The gear motor drives a small telescoping leadscrew linear actuator, which reciprocally drives a glove-like assembly that holds the patient’s hand. The result is smooth and continuous extension and flexure of the patient’s joints.
Allied Motion's CL40 coreless DC motor coupled with an efficient S38 spur reduction gearhead forms a compact gear motor that can efficiently drive the CPM.
CPAP Respiratory Ventilation Air Pump
Sleep apnea treatment often involves the assistance of Continuous Positive Airway Pressure (CPAP) respirators. All PAP systems (APAP, CPAP, IPAP/EPAP) control a stream of compressed air (4 to 20 cm H2O) to keep the patient’s airway open, which assists their breathing and greatly diminishes occurrences of closure of their airway during sleep that results in episodes of apnea and snoring.
Allied Motion’s compact KinetiMax brushless DC motors like the KMX24 are used in CPAP systems to quietly and efficiently drive the system air pump precisely at commanded variable rates.
CT Scanner Cooling System Pump
CT scanners have become virtually indispensable as a medical analysis tool. Modern CT scanners, especially newer multi-slice models, allow much faster, higher resolution scanning. This performance boost has helped make possible higher quality coronary artery and 3D imaging.
A major manufacture of CT scanners relies on Allied Motion’s reliable KinetiMax brushless DC motors with integrated drive to keep the high power X-ray generator cool. The KinetiMax motor powers a centrifugal pump that circulates coolant through the generator.
Dental Instrument Pump
From dental treatment centers to denture fabrication labs, small reliable and efficient pumps to supply gases and liquids are a necessity. Allied Motion’s engineers work with medical pump and dental equipment manufacturers to provide them the specialized motors they need.
Excellent reliability, long service life, low audible noise, and two-wire simplicity are just a few of the attractive features of Allied Motion's small precision KinetiMax brushless DC motors with integrated drives used to drive coolant pumps for denture fabrication systems and other similar applications.
Dialysis System Pump
Hemodialysis (HD) therapy systems require reliable peristaltic pumps to accurately control the flow of patient’s blood and the dialysis solution through the machine’s dialyzer.
Dialysis system manufacturers rely on Allied Motion’s precision brushless KinetiMax motors with on-board drive electronics to provide reliable, quiet, long-service life motor solutions for their HD pump subsystems.
Compact, rugged, and mechanically simple diaphragm pumps can handle either fluids or gases with equal efficiency and reliability. Precision versions, powered by electric motors, are employed in numerous commercial and industrial feeding and metering applications. Smaller models are popular in instrumentation and medical uses.
Allied Motion’s BL30 with integrated drive electronics are popular for powering diaphragm pumps in a variety of medical fluid pumping and gas compressor applications. And our EnduraMax brushless DC motors are used to drive precision diaphragm pumps in industrial applications.
Intensive Care Respiratory Ventilation Air Pump
Ventilators provide temporary respiratory support to medical patients, often in critical care situations. Reliability and low audible noise are very important criteria to ventilator manufacturers. Medical ventilators must also be very versatile to cover patients from infants to large adults with differing treatment protocols.
A small, low-noise, power-efficient respiratory blower is required for such ventilators. Allied Motion's engineers developed the ResMax 28 brushless DC motor specifically for ventilators. It's high speed (90,000 RPM) and high dynamic performance enable high pressure (100 mBar) and peak flow (200 L/min) generation, while being highly dynamic to accurately follow patient breathing rhythms.
Left Ventricular Heart Assist Device (LVAD)
Left ventricular heart assist devices (LVAD) were developed to help heart transplant candidates while they await the availability of a heart, and also for permanent support for end stage heart failure patients.
Advanced LVAD pumps are implanted in the patient, and use an axial flow pump powered by a compact, highly efficient brushless DC torque motor such as those designed by Allied Motion for LVAD applications.
Nuclear Imaging System
Some nuclear imaging systems use Anger cameras (photoscintillation imagers) to image radiopharmaceuticals in a patient. In positron emission computer tomography (ECT) or single photon emission computed tomography (SPECT) the cameras are revolved around the patient. The cameras also are translated radially to keep the cameras close to the patient’s body. A fourth linear motion axis translates the entire gantry assembly horizontally for full-body scans.
Allied Motion’s Quantum series of BLDC servo motors are an ideal choice for this application because of their high performance capabilities, compact size, and unquestionable reliability and service life.
Patient Handling Equipment
Patient comfort is enhanced, especially for children and the elderly, when they are better accommodated by powered patient handling equipment such as the exam table shown here, where patients can sit as in a chair and then are gently oriented for examination.
Allied Motion’s durable, quiet DC brush motors power the linear actuation devices used in modern, more accommodative exam tables like these.
Patient Transport Equipment
Developers of a new-concept patient transfer bed – a motorized gurney with a built-in transfer belt that enables a single caregiver to transfer a patient within a medical facility without having to physically lift the patient – sought Allied Motion's assistance to motorize the 1400 lb. bed. Two traction drive wheels, a steering drive and two height adjusters were needed.
Allied Motion responded with custom versions of our EnduraMax brushless motors for traction and our Endurance brush DC-based gear motors for the steering and height adjustment.
Pipetting System for Automated Blood Analyzer
Blood analysis requires a sequence of steps that if done manually are very time-consuming. An automated pipetting subsystem can speed the analysis. In such a system a set of pipettes is positioned to aliquot blood samples from primary test tubes and deposit them in secondary tubes. The subsystem must not only be fast but also accurate and smooth in handling the samples.
Allied Motion’s small CL series of coreless DC motors equipped with gearheads drive miniature leadscrews to withdraw or deposit precise amounts of fluid from or to the sample tubes. Quantum series servo motors power the X-Z mechanical translation system that precisely positions the pipetting system during operation.
Power Wheelchair Drive
Medical mobility equipment such as power wheelchairs, scooters, stair lifts, and elevators require dependable, quiet DC or brushless DC motors and gear motors for reliable, long life operation.
That's why manufacturers in the medical mobility industry rely on Allied Motion's proven motors and gear motors to perform over many years of hard, daily use in their products.
Powered Stair Lift
All powered medical access and mobility equipment like the stair lift shown here are expected to operate quietly and reliably over many years of numerous daily cycles. That’s why the manufacturers of this type of equipment demand rugged, reliable motor drives like those manufactured by Allied Motion specifically for such mobility applications.
Powered Surgical Handpieces
Powered surgical handpiece motors must be small, light, efficient (low thermal rise in the surgeon's hand) yet high-powered, and autoclavable. These extremely important requirements of these motors are difficult to achieve with most motor designs.
To address this Allied Motion's engineers developed miniature precision PerformeX series slotless and slotted brushless motors that can deliver up to twice the power of same-size competitive units while meeting the stringent requirements of the powered surgical instrument industry.
Precision Peristaltic Pump
Positive displacement peristaltic pumps are a simple yet efficient means of handling liquids or gases in medical, laboratory, and industrial applications. The bench-top, multichannel laboratory type of pump shown here can provide fluid flows from μl/minute up to 2.0 liters per minute.
The heart of this pump is a precision brushless DC KinetiMax motor developed by Allied Motion engineers to be compact, efficient and quiet while providing long trouble-free service.
Programmable Syringe Pump
Small portable and battery-operated syringe pumps are used extensively to administer infusions associated with chemotherapy, post operative and chronic pain control, antibiotics and other medications given parenterally. Typical flow rates for these types of syringe pump can range from 0.1 to 200 ml/h, so the motors used must have excellent speed controllability.
Miniaturization of these units for use by ambulatory patients requires reliable small motors like Allied Motion’s CL coreless DC motors, which are highly efficient to conserve battery life.
Robot-assisted surgery dates from the 1980's, but tremendous strides in the technology of surgical robots have been made in the past decade with the introduction of new and better surgical robot systems. These newer, multiaxis, highly precise surgery systems have enabled improved diagnostic abilities, less invasive and more comfortable patient experiences, and smaller and more precise interventions.
Allied Motion is honored to be a supplier of our precision medical motors and frameless torque motors to leading suppliers of surgical robot systems.