Motors and Actuators for Medical Devices

Sierramotion Application Solutions

Whether it is a diagnostic system, a cardiac assist device, or a robotic surgery system, Sierramotion has experience in creating motor and actuator solutions that matter.

There some common safety and material requirements as well as full functional testing and traceability that automatically get factored into each design. Motorized solutions are also very tightly controlled by government regulations and require certain redundancy in components and design.

Imaging Diagnostics

Blood Analysis

Blood analysis/assays

  • Precision X-Y and Z motion with options for travel ranges
  • Nanometer resolution and precision magnetic motion
  • Magnetically balanced system for gravity compensation
  • Highly integrated design embedded motors into mechanical parts for smaller size and lower weight while keeping precision

    • Gene Sequencing

    Gene sequencing/analysis

  • Large gantry robot systems with linear motors and precision encoders
  • Complete stage design for high accuracy requirement for gene sequencing
  • High repeatability motors and systems for optimum re-scanning of previous scans
  • Low noise magnetic actuators with internal magnetic filtering for minimum system noise

    • CT Machine

    CT, MRI and other imaging systems

  • Gantry rotation with direct drive modular motors
  • Arc-shaped motors for scanning
  • Leaf collimation systems with linear motors as thin as 2mm wide
  • Moving magnet ring motors with diameters up to 2 meters
  • Precision encoder motor integration for optimum motion performance
  • Zero backlash from magnetic direct drive
  • Low noise for direct drive with slew bearings or air bearings

    • Surgery (Robotic)

    Robotic assisted surgery

  • Highly integrated robot joints with precision zero backlash gear, torque motor and dual encoders
  • Direct drive motors for direct drive robot joints
  • Tool movement with direct drive linear actuator systems
  • Tool position with cable drive systems and direct drive slotless motors
  • Zero hysteresis and eddy current for haptic torque feedback
  • Zero cogging for smooth motion in driving or torque feedback operation
  • Magnetic balancing for weightlessness in moving robot arms

    • Robotic Limb Replacement

    Robotic assisted limb replacement

  • Precision linear smooth motion for tool engagement
  • Linear high torque output and precise torque linearity to be used for torque and force feedback
  • High natural resonance frequency design for high stiffness in keep out zones
  • Highly integrated robot joints with precision zero backlash gear, torque motor and dual encoders

    • Surgery (Radio)

    PET Guided Radiosurgery

    CT/PET guided radiosurgery

  • Gantry rotation with direct drive modular motors
  • Arc-shaped motors for scanning
  • Leaf collimation systems with linear motors as thin as 2mm wide
  • Moving magnet ring motors with diameters up to 2 meters
  • Precision encoder motor integration for optimum motion performance
  • Zero backlash from magnetic direct drive
  • Low noise for direct drive with slew bearings or air bearings

    • Proton Based Radiosurgery

    Proton based radiosurgery

  • Gantry rotation with direct drive modular motors
  • Arc-shaped motors for scanning
  • Leaf collimation systems with linear motors as thin as 2mm wide
  • Moving magnet ring motors with diameters up to 2 meters
  • Precision encoder motor integration for optimum motion performance
  • Zero backlash from magnetic direct drive
  • Low noise for direct drive with slew bearings or air bearings

    • Stereotactic Radiosurgery

    Gamma based stereotactic radiosurgery

  • Gantry rotation with direct drive modular motors
  • Arc-shaped motors for scanning
  • Leaf collimation systems with linear motors as thin as 2mm wide
  • Moving magnet ring motors with diameters up to 2 meters
  • Precision encoder motor integration for optimum motion performance
  • Zero backlash from magnetic direct drive
  • Low noise for direct drive with slew bearings or air bearings

    • Exoskeleton

    Surgery Braces

    Surgery braces

  • High motor constant for peak torque output
  • Segmented BLDC motors for highest Km available
  • Precision low drag magnetic circuits

    • Limb Therapy

    Limb Therapy

  • Highly integrated robot joints with precision zero backlash gear, torque motor and dual encoders.
  • Collaborative operation with internal torque sensor as redundant safety system to force sensor

    • Limb replacement with motorized assist mechanisms

  • Highly integrated robot joints with precision zero backlash gear, torque motor and dual encoders
  • Highly integrated gearmotors for high torque in small package fully controllable including haptic torque feedback

    • Talk with an engineer today >