The CathSim® AccuTouch™ device is developed
by Immersion Medical. The device was
originally used to teach students how to start an IV or draw blood. The device
provides realistic force feedback as the user performs venipuncture, which allows
the user to experience the feel of the real procedure. The Surgical Simulation
Laboratory has adapted this device for its pericardiocentesis and diagnostic
peritoneal lavage simulators. These are both needle-based procedures, and the
device is well-suited to their requirements.
Mechanically, the device contains a needle carrier. The needle carrier has a three degree-of-freedom (DOF) orientation sensor. Pitch, yaw, and depth of insertion can be detected. The carrier also provides a one DOF passive haptic feedback. As the user pushes or pulls the carrier, resistance can be felt. The degree of resistance is controllable. By dynamically controlling the degree of resistance, it is possible to simulate the sensation of a needle piercing through various layers of tissue. Encoders located coaxial to the needle carrier permit guidewires, cannulas, and catheters to be detected.
See the device in use
 Diagnostic Peritoneal |
 Pericardiocentesis |
 IV insertion |
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| 56Kbps (Modem) |
256Kbps (Broadband)
| 56Kbps (Modem) |
256Kbps (Broadband) |
56Kbps (Modem) |
256Kbps (Broadband) |
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