Robert W. Bossemeyer

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OBJECTIVE To investigate the potential biomechanical causes of the complications of partial nephrectomy (PN) in a preclinical model of sliding-clip renorrhaphy. PN is a reference standard for amenable small renal masses. One disadvantage of PN, however, is the risk of postoperative bleeding and/or urinary leak. MATERIALS AND METHODS Simulated tumor(More)
A group of 51 socially active, self-declared neurologically normal subjects ranging from 61 to 84 years of age were studied with a battery of clinical neurological examinations and a semiquantitative vibration perception test. None of the subjects showed a consistent pattern of neurological deficit that could be identified as pathological. On review of(More)
Fifty-two neurologically normal subjects from 61 to 84 years in age were evaluated for sensitivity of perception of joint motion. Right and left metacarpophalangeal and metatarsophalangeal joints were passively moved in an ever-increasing amplitude in a sinusoidal flexion-extension mode. Precise measurements of the amplitude of the angle of deviation where(More)
A real-time stage 1 sleep detection system using a low-cost single dry-sensor EEG headset is described. This device issues an auditory warning at the onset of stage 1 sleep using the "NeuroSky Mindset," an inexpensive commercial entertainment-based headset. The EEG signal is filtered into low/high alpha and low/high beta frequency bands which are analyzed(More)
Threshold perception of motion of the digits was obtained in 14 normal subjects. The metacarpophalangeal joint of the index and the fifth finger of each hand and the metatarsophalangeal joint of the hallux of each foot were passively moved up and down with respect to a horizontal plane defined by the palmar or plantar surface. The motion was sinusoidal at(More)
OBJECTIVE To investigate the anti-slip strength of closing systems employing sutures terminated with a Hem-o-lok/Lapra-Ty clip combination to determine which sutures perform best for this application. Partial nephrectomy is the reference standard for treatment of small renal masses. The main disadvantage of partial nephrectomy is the risk of technical(More)
PURPOSE We determined the functional life of various configurations of partial nephrectomy closure systems. MATERIALS AND METHODS Sutures were prepared using standard techniques for sutured renorrhaphy during partial nephrectomy. Tested systems included knot/Hem-o-Lok®, Lapra-Ty®/Hem-o-Lok and Hem-o-Lok/Hem-o-Lok combinations. The saline filled tank was(More)
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