Abstract:
An elastomeric particle (1, 1, 1″) comprises a non-conducting elastomeric body (2) having an electrically conducting surface (4a, 4b, 6). Pressure sensor elements (20, 20′, 20″; 30, 30′, 30″, 30′″) comprising such elastomeric particles are disclosed, as well as sensor clusters (50″, 50′″, 50IV, 50V, 50VI, 50VII, 70) comprising such sensor elements. There is also disclosed a pressure sensor element (40, 40′, 40″, 40′″, 40IV, 40V, 40VI, 40VII), comprising a resistive element (44, 44′, 44″) providing a conduction path, a first electrode (42a, 42a-1, 42a-2, 42a-3, 42a-4, 42a-5, 42a-6), connected to the resistive element, a second electrode (42b, 42b′), which in a quiescent state is spaced from said first electrode, wherein the second electrode, when the pressure sensor element is subjected to a pressure, is arranged to contact said first electrode or said resistive element. Systems comprising such sensor elements and sensor clusters are disclosed, as well as methods of their fabrication.
Abstract:
A device for compressive treatment of a body part includes a compression member, adapted to at least partly encircle the body part, and an actuation unit, arranged to tighten the compression member to provide a compressive force to the body part. The actuation unit includes an active material actuator. There is also disclosed a system comprising such a device and methods for its therapeutic, cosmetic and non-therapeutic use and operation.
Abstract:
The proposed device includes two segments adapted to enclose a body part in a form-fitting manner. Each segment contains an electroactive-material-based actuator, which is adapted to receive an electrical control signal and in response thereto adjust the actuator's morphology, so as to cause the segment to apply a basic pressure profile to the body part. A pressure transition is adapted to redistribute the basic pressure profiles between the first and second segments. A control signal in respect of the first segment causes the pressure transition system to apply a first adjusted pressure profile to at least part of the second portion of the body part, and vice versa, a control signal in respect of the second segment causes the pressure transition system to apply a second adjusted pressure profile to at least a part of the first portion of the body part.
Abstract:
A transducer is designed and fabricated using stretched rolled electroactive polymers. The invention includes the design, fabrication, and integration of a stretched rolled actuator system with corresponding sensing, control and power subsystems. The invention presented is based on the improved performance of electroactive polymer transducers that can be achieve by prestretching the polymeric material. In this invention, the preferred stretch is maintained in a rolled configuration by introducing structural elements to the transducer. The structural elements facilitate fabrication of the transducer as well as provide a compact and efficient means of maintaining stretch and the desired boundary conditions on the electroactive polymer during operation. These conditions together are used to improve and tailor the strain response of the transducer.
Abstract:
Compositions, systems, devices, and methods for performing precise chemical treatment of tissues are disclosed. Systems, devices, and methods for administering a chemical agent to one or more a precise regions within a tissue mass are disclosed. Compositions, systems, devices, and methods for treating targeted regions within a tissue mass are disclosed. Systems, devices, and methods for identifying, localizing, monitoring neural traffic in the vicinity of, quantifying neural traffic in the vicinity of, and mapping neural traffic near targeted regions within a tissue mass are disclosed.
Abstract:
Compositions, systems, devices, and methods for performing precise chemical treatment of tissues are disclosed. Systems, devices, and methods for administering a chemical agent to one or more a precise regions within a tissue mass are disclosed. Compositions, systems, devices, and methods for treating targeted regions within a tissue mass are disclosed. Systems, devices, and methods for identifying, localizing, monitoring neural traffic in the vicinity of, quantifying neural traffic in the vicinity of, and mapping neural traffic near targeted regions within a tissue mass are disclosed.
Abstract:
A method includes delivering a composition to a tissue site within a volume of tissue; and at least one of monitoring the effect of the composition on an electrophysiological state of a region in the volume of tissue and monitoring the migration of the composition in the region after delivery to the site; wherein the composition comprises an ablative agent for performing a treatment within a body of a subject and an excipient for limiting migration of at least one of the composition and the ablative agent within the body after delivery to the tissue site.
Abstract:
An isolation system for isolating a mobile computing device from an environment while retaining the functionality of the mobile computing device that includes at least one sheet and a sealable region. The sheet may include one or more layer to maintain functionality of the enclosed mobile computing device during use. The isolation system may include a sterilizable outer surface for rendering an enclosed mobile computing device usable in a surgical environment. The isolation system may include a pump and channels or valves to allow for fluid removal or addition to the interior of the isolation system. The sheet of the isolation system may further comprise microtextured inner layer so as to maintain functionality of the enclosed mobile computing device in an aqueous environment or in a soiled condition.
Abstract:
An elastomeric particle (1, 1, 1″) comprises a non-conducting elastomeric body (2) having an electrically conducting surface (4a, 4b, 6). Pressure sensor elements (20, 20′, 20″; 30, 30′, 30″, 30′″) comprising such elastomeric particles are disclosed, as well as sensor clusters (50″, 50′″, 50IV, 50V, 50VI, 50VII, 70) comprising such sensor elements. There is also disclosed a pressure sensor element (40, 40′, 40″, 40′″, 40IV, 40V, 40VI, 40VII), comprising a resistive element (44, 44′, 44″) providing a conduction path, a first electrode (42a, 42a-1, 42a-2, 42a-3, 42a-4, 42a-5, 42a-6), connected to the resistive element, a second electrode (42b, 42b′), which in a quiescent state is spaced from said first electrode, wherein the second electrode, when the pressure sensor element is subjected to a pressure, is arranged to contact said first electrode or said resistive element. Systems comprising such sensor elements and sensor clusters are disclosed, as well as methods of their fabrication.
Abstract:
A system for obtaining inline sensory feedback from an electroactive polymer based transducer for use in feedback control applications is disclosed. Specifically a method of obtaining sensory feedback from an electroactive polymer based transducer includes the steps of: receiving a user input in a control system, combining it with a control system feedback signal from a sensory feedback circuitry and producing a control signal; receiving the control signal in an amplifier and sensory tone generator, combining it with an amplifier feedback signal from the sensory feedback circuitry and producing a power signal; receiving the power signal and an environmental disturbance in an electroactive polymer transducer and sensory circuitry and responsive to the user input producing a sensory signal; receiving the sensory signal in the sensory feedback circuitry and producing the control system feedback signal and the amplifier feedback signal; and producing a data output in the control system.