Group items tagged surgeon - Sensorica Knowledge

shared by Francois Bergeron on 23 Mar 12 - No Cached

shared by Francois Bergeron on 25 Apr 12 - No Cached

Surgeons have developed new minimally invasive surgery (MIS) techniques and instruments so that procedures that would previously have required a large incision can now be performed through a tiny 10mm cut.
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University of Western Ontario and Canadian Surgical Technologies and Advanced Robotics (CSTAR) in London, Ontario
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The researchers used a torque sensor to measure the force of the palpations.
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...2 more annotations...
Using tactile MIS sensing instruments under robotic control reduces the maximum force applied to the tissue by over 35% compared to a human controlling the same instrument. Accuracy in detecting the tumours was also far greater with the robot - between 59 and 90% depending on the robot control method used for palpation.
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If developed further, the authors suggest that this type of instrument would particularly benefit surgeons performing lung tumour resection, where tissue often shifts significantly.
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shared by Francois Bergeron on 13 Dec 12 - No Cached

Currently this catheter method requires the use of three different devices, which are inserted into the heart in succession: one to map the heart's signals and detect the problem area, a second to control positions of therapeutic actuators and their contact with the epicardium, and a third to burn the tissue away.
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The device is designed to deliver critical, high quality information - such as temperature, mechanical force, and blood flow - to the surgeon in real time.
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shared by Francois Bergeron on 25 Apr 12 - No Cached

shared by Tiberius Brastaviceanu on 13 Mar 12 - No Cached

shared by Tiberius Brastaviceanu on 23 Apr 11 - No Cached

miniature uniaxial force sensor for use within a beating heart during mitral valve annuloplasty
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provides a hollow core to pass instrumentation
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Fiber optic transduction eliminates electrical circuitry within the heart, and acetal components minimize ultrasound-imaging artifacts
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...4 more annotations...
0–4-N force range
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errors of 0.13 N (<3.2%)
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MINIMALLY invasive surgery (MIS)
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surgeons lose the critical sense of touch during MIS because instruments are passed through ports that mask the surgeon's feel of the internal operating environment.
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