Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 19 of 19 for “"Prosthetic Hand"”.
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Navy SEAL Prosthetic Hand
<p>Prosthetic development recently has focused mainly on myoelectrically controlled electric hands despite a majority of upper extremity amputees actively choosing body powered devices. Myoelectric hands utilize a small electric pulse generated in muscles when flexing as a signal to the hand to …
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Cost-Effective Prosthetic Hand Controlled by EMG
<p>A cost-effective five-finger prosthetic hand is designed from aluminum, modeled and controlled using surface Electromyography (EMG) signals, which are obtained from the human body. Force sensors are used to control required forces needed to grasp and pick objects. A prototype hand is developed …
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Development of an Open Source Prosthetic Hand Platform
<p><strong>D</strong>evelopment of an Open Source Prosthetic Hand Platform</p> <p> Scott Garrett</p> <p> In the field of upper extremity prosthetic devices, advancements in technology drive the design of products which are becoming capable of restoring the lost functions of the native hand. While …
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Design of an affordable anthropomorphic mechanical prosthetic hand
… of an affordable anthropomorphic mechanical hand prosthesis. In many countries, upper-limb amputees lack access to prosthetic hand devices. Furthermore, currently available mechanical devices require a large amount of effort to actuate; fatiguing and frustrating patients who have no other …
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A concept model for a multi-fingered prosthetic hand
… various attempts by individuals to replace the hand has led to some ingenious and practical designs, but if compared to the real hand these designs are still light years behind. Till recently the most functional prostheses developed were body powered because of the simple, light weight designs. …
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An intelligent prosthetic hand using hybrid actuation and myoelectric control
… the design and development of an intelligent prosthetic hand based on hybrid DC and Shape Memory Alloy (SMA) actuation and controlled by only two myoelectric sensors. A prosthesis as a tool makes no pretence of trying to replace the lost limb physiologically but it works as an aid to help …
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Grasped Object Detection for Adaptive Control of a Prosthetic Hand
… PID sliding mode controller are presented for a prosthetic hand. The adaptive controller smoothly modulates the gains based on the detected stiffness of the grasped object. Three main control strategies will be compared: PID force control, sliding mode position and hybrid sliding mode …
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Development of a low-cost high-impact resistant compliant myoelectric prosthetic hand
… amputations abandon commercially-available prosthetic hands. To address this problem, this thesis presents the design and evaluation of a compliant four-bar linkage mechanism that makes the fingers of a prosthetic hand more impact resistant and the integration of electromyographic (EMG) …
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Predicting hand grasping orientation for prosthetic hand control using multimodal sensor data (EEG, EMG, and IMU) with machine learning approach
Enhancing the control of prosthetic hands is a crucial challenge that directly impacts the daily functionality of individuals with limb loss. Our research delves into advanced machine learning (ML) methodologies to accurately predict hand-grasping orientations, thereby improving the precision of …
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An exploration of modality matched mechanotactile feedback via a soft actuator for use in prosthetic devices
The loss of a hand is often a profoundly traumatic experience and can often mean the interruption of the closed-loop feedback system within the brain that is responsible for motor control of the hand and the sensory feedback from the hand. The loss of sensory feedback can significantly affect the …
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A hybrid haptic stimulation prosthetic wearable device to recover the missing sensation of the upper limb amputees
… temperature, simultaneously, was designed for a prosthetic hand to provide a tactile sensation to amputation patients. In addition, the haptic system was developed to enable the prosthetic’s users to implement withdrawal reflexes due to the thermal noxious stimulus in a quick manner. The …
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Perceptual and comparative analyses of a passive, linear, multiple degree-of-freedom skin stretch device for proprioceptive substitution
… proprioceptive information about a myoelectric prosthetic hand during grasping. The device consists of three plastic contact pads that are adhered to the skin on the glabrous forearm and that are each attached by a wire to the metacarpophalangeal joint of one prosthetic finger. When a finger …
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Mechanisms for enabling closed-loop upper limb sensorimotor prosthetic control
… that enable simultaneous myoelectric control of hand prostheses with proprioceptive and touch/pressure feedback. Sensory feedback is enabled through the use of a passive skin stretch mechanism for proprioception (Chapter 2), an epidermal electronic device that can provide electrotactile …
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Prosthesis Design and Object Recognition Based Grasping of a 3D Printed Anthropomorphic Artificial Hand
… of a cost effective, open-source, 3D printed prosthetic hand with the implementation of object recognition in order to reduce the cognitive burden of amputees through automated grasping. Due to the high cost of modern, active, prostheses, an open-source 3D printable anthropomorphic artificial …
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Simultaneous Multi-Joint Myoelectric Control of Transradial Prostheses
As the development of dexterous prosthetic hand and wrist units continues, there is a need for command interfaces that will enable a user to operate these multi-joint devices in a natural, coordinated manner. Commercially available myoelectric control algorithms are unintuitive, allow only a single …
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Modeling Upper Body Kinematics While Using a Transradial Prosthesis
… to the forearm) and the operation of a powered prosthetic hand. Body-powered prostheses, incorporating hooks and other cable driven terminal devices, have even fewer active degrees of freedom. In order to perform activities of daily living, an amputee must use a greater than normal range of …
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Electronic bidirectional interfaces to the peripheral nervous system for prosthetic applications
… work is involved is in fact the realization of a prosthetic hand controlled using neural signals. The commercially available prosthesis are based on Electromyographic (EMG) signals, their use implies unnatural movements for the patient that needs a special training to develop the control …
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Non-invasive detection of the electromyographic activity of the deep extrinsic thumb muscles using surface electrodes
… for robot based targeted rehabilitation of the hand or in the control of prosthetic hand devices.