摘要:
A physiological feature of a subject is monitored by implanting a plurality of targets, such as magnets, and detecting at least one change in a physical property of the targets, followed by modifying a physiological feature of the subject in response to a change of state detected by the change in physical property detected in the targets. Cutaneous sensory feedback and proprioceptive feedback in a subject, as well as selective stimulation of axons or nerve fascicles of a neuron of a subject are provided.
摘要:
Specialized ultrasound imaging systems and methods provide metrics related to objective and consistent quantification of scar tissue volume that strongly correlate with tendon healing and range of motion. Automated acquisition of ultrasound images of fingers helps assess tendon healing in a non-invasive, quantitative fashion and can be used to guide clinical decision-making, management of post-operative tendon repair patients, and employment and insurance considerations.
摘要:
A wrist-worn computer interface including a sensor for measuring wrist tendon forces corresponding to specific finger motions including a linear array of cantilevered piezoelectric sensors configured to emit electric currents upon pressure from the wrist tendons on the tip of the piezoelectric sensors, a processing module configured for converting the electric currents generated upon pressure from wrist tendons into signals and for processing the signals to identify one or more specific finger motions, and a flexible PCB connecting the piezoelectric sensors to the processing module. A controller module is configured to cause one or more computing devices to automatically execute one or more specific commands corresponding to one or more of the specific finger motions.
摘要:
A tension mechanism for a robotically-controlled medical device measures the tension applied to an actuation tendon to provide feedback to a robotic controller. In one embodiment, the device comprises an elongated instrument, an elongated member, and a base. The elongated member is coupled to the distal end of the elongated instrument, configured to actuate the distal end of the elongated instrument in response to tension in the elongated member. The base is located at the proximal end of the elongated instrument, and comprises a first redirect surface that redirects the elongated member. The first redirect surface is coupled to a lever element that is configured to exert a reactive force on a sensor in response to tension in the elongated member.
摘要:
Disclosed is a method for evaluating the physiopathological state of a biological tissue situated near a joint, the method including: measurement of the force and/or of the movement to which the joint is subjected; emission of an ultrasound wave into the tissue; simultaneous acquisition of the ultrasound data, which are received after propagation of an ultrasound wave emitted into the tissue, and of the force and/or movement data of the joint; and processing of the data. Also disclosed is a device for implementing the method.
摘要:
A patellar 3-D guidance tool includes a template. The template includes at least one contact surface for engaging a surface of the patella. The at least one contact surface substantially conforms with the surface associated with the patellar. At least one guide aperture directs movement of a surgical instrument, wherein the shape and/or position of the guide aperture is based, at least in part, on three or more anatomic reference points associated with the patellar.
摘要:
Disclosed herein are methods, compositions and tools for repairing articular surfaces repair materials and for repairing an articular surface. The articular surface repairs are customizable or highly selectable by patient and geared toward providing optimal fit and function. The surgical tools are designed to be customizable or highly selectable by patient to increase the speed, accuracy and simplicity of performing total or partial arthroplasty.
摘要:
Disclosed herein are methods, compositions and tools for repairing articular surfaces repair materials and for repairing an articular surface. The articular surface repairs are customizable or highly selectable by patient and geared toward providing optimal fit and function. The surgical tools are designed to be customizable or highly selectable by patient to increase the speed, accuracy and simplicity of performing total or partial arthroplasty.
摘要:
An Active Ankle Foot Orthosis (AAFO) is provided where the impedance of an orthotic joint is modulated throughout the walking cycle to treat ankle foot gait pathology, such as drop foot gait. During controlled plantar flexion, a biomimetic torsional spring control is applied where orthotic joint stiffness is actively adjusted to minimize forefoot collisions with the ground. Throughout late stance, joint impedance is minimized so as not to impede powered plantar flexion movements, and during the swing phase, a torsional spring-damper (PD) control lifts the foot to provide toe clearance. To assess the clinical effects of variable-impedance control, kinetic and kinematic gait data were collected on two drop foot participants wearing the AAFO. It has been found that actively adjusting joint impedance reduces the occurrence of slap foot, allows greater powered plantar flexion, and provides for less kinematic difference during swing when compared to normals.
摘要:
Devices, systems, and methods for automated optimization of muscle stimulation energy. In some embodiments the disclosure optimizes stimulation parameters and/or stimulation location.