Browsing by Author "Weir, Richard F."
Now showing items 1-17 of 17
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A MYOELECTRICALLY CONTROLLED PROSTHETIC HAND FOR TRANSMETACARPAL AMPUTATIONS.
(2002)We have developed a new externally-powered, myoelectrically controlled partial hand prosthesis that is suitable for fitting those persons with amputations at or more proximal to the level of the metacarpophalangeal (MCP) ... -
ANALYSIS WINDOW INDUCED CONTROLLER DELAY FOR MULTIFUNCTIONAL PROSTHESES
(2008)Many upper-limb, multifunctional prosthesis controllers analyze fixed segments of EMG data collected from the residual musculature in an attempt to discern the intended movement of the user. However, many researchers ... -
DESIGN OF A CLINICALLY VIABLE MULTIFUNCTIONAL PROSTHETIC HAND.
(2002)We are in the process developing a new multifunctional hand mechanism in the hopes of providing a new mechanism that will have superior function over today’s single degree-offreedom (DOF) mechanisms and yet be clinically ... -
Design Of A Myoelectric Controller For A Multi-Dof Prosthetic Hand Based On Principal Component Analysis
(2011)The goal of this investigation is to develop a multi-degree of freedom (DOF) prosthesis controller that uses myoelectric signals as control inputs and which has been dimensionally optimized using Principal Component Analysis ... -
DEVELOPMENT OF A CLINICALLY VIABLE MULTIFUNCTIONAL HAND PROSTHESIS
(2008)We have developed a new multifunctional hand mechanism in the hopes of providing a new mechanism that will have superior function over today’s single degree-of-freedom (DOF) mechanisms and yet be robust enough to be clinically ... -
Development of a Clinically Viable Multifunctional Underactuated Hand Prosthesis Using Differential Transmissions
(2008)We are now in the process of developing a multifunctional prosthetic hand that uses six commercially available DC electric motors and transmissions in an under-actuated system to drive 16 degrees of motion. Providing greater ... -
EVALUATION OF A PROTOTYPE ELECTRIC-POWERED PARTIAL-HAND PROSTHESIS
(2005)A prototype partial hand mechanism has been developed for fittings at the trans-metacarpal level. Subjects selected for evaluation of the prototype device have absence of all fingers of the affected hand, all or some portion ... -
MULTIFUNCTION PROSTHESIS CONTROL USING IMPLANTED MYOELECTRIC SENSORS (IMES)
(2008)Persons with recent hand amputations expect modern hand prostheses to function like intact hands. Current stateof- the-art electric prosthetic hands are generally single degree-of-freedom (opening and closing) devices that are ... -
Neurofuzzy Logic as a Control Algorithm for an Externally Powered Multifunctional Hand Prosthesis
(2002)We propose an algorithm based upon neurofuzzy technology. We believe that because of the inherent “fuzziness” of human activity, a control algorithm based on fuzzy logic may have advantages for multifunctional prosthesis ... -
NON-BACKDRIVABLE SERIES ELASTIC ACTUATOR FOR USE IN A PROSTHETIC ELBOW
(2005)Commercially available prosthetic elbows have stiff actuators (motors) that are only capable of motion (position or velocity) control. In an attempt to mimic human physiology while accommodating prosthetic demands, ... -
PHANTOM LIMB SENSORY FEEDBACK THROUGH NERVE TRANSFER SURGERY
(2005)Commercially used prostheses are essentially open-loop devices and provide little or no feedback to the amputee as to how much force they exerting with the terminal device, despite numerous attempts to provide closed loop ... -
Powered Humeral Rotator for Persons with Shoulder Disarticulation Amputations
(2005)There are no commercially available externally-powered humeral rotators. This paper describes the development of a new powered-humeral rotator based on an LTI Boston Elbow II drive train suitable for use on persons with ... -
REAL-TIME COMPUTER MODELING OF A PROSTHESIS CONTROLLER BASED ON EXTENDED PHYSIOLOGICAL PROPRIOCEPTION (EPP)
(2002)Proprioception utilizes the physiological components of the nervous and musculoskeletal systems to allow an individual to sense the position of their limbs subconsciously. By providing a rigid connection to an object this ... -
Removal of ECG Artifacts from Myoelectric Prosthesis Control Signals
(2005)We investigated removal of electrocardiogram (ECG) artifacts from the myoelectric prosthesis control signals, taken from the reinnervated pectoralis muscles of a patient with bilateral amputations at shoulder disarticulation ... -
SURFACE VS. IMPLANTED EMG FOR MULTIFUNCTIONAL PROSTHESIS CONTROL: PILOT RESULTS
(2005)It has been hypothesized that, due to the potential to both provide a larger number of independent control sites and selectively record from forearm muscles (in particular the deep muscles), intramuscular EMG should ... -
THE EFFECT OF CONTROLLER DELAY ON BOX AND BLOCK TEST PERFORMANCE
(2005)Multifunctional prosthesis controllers have shown higher classification accuracies when EMG feature extraction and pattern recognition are performed on time windows of longer duration [1] (see figure 1). However, there is ... -
THE EFFECTS OF ELECTRODE IMPLANTATION AND TARGETING ON PATTERN CLASSIFICATION ACCURACY FOR PROSTHESIS CONTROL
(2008)Many researchers have attempted to recognize patterns of muscle activity associated with different movements of the phantom limb and link these patterns to movements of the prosthesis. Researchers have examined a variety ...
