Abstract: Exemplary task-agnostic exoskeleton control system and method are disclosed that are task-agnostic utilizing instantaneous estimates of biological joint moments from deep neural networks to assist the user movements. The exemplary control system employs multiple body sections and joints in-the-loop estimation to provide multi-joint assistance operation, e.g., within an autonomous, clothing-integrated exoskeleton. The exemplary control system may deploy a deep domain adaptation (DDA) method configured to translate human movement data between a simulated sensor domain and a real sensor domain.

Abstract: Exemplary task-agnostic exoskeleton control system and method are disclosed that are task-agnostic utilizing instantaneous estimates of biological joint moments from deep neural networks to assist the user movements. The exemplary control system employs multiple body sections and joints in-the-loop estimation to provide multi-joint assistance operation, e.g., within an autonomous, clothing-integrated exoskeleton. The exemplary control system may deploy a deep domain adaptation (DDA) method configured to translate human movement data between a simulated sensor domain and a real sensor domain.

Abstract: An exemplary embodiment of the present invention provides an exosuit support system, comprising first and second orthotic interfaces, first and second members, and first and second actuators. The first and second orthotic interfaces can be configured to attach to left and right legs of a user, respectively. The first member can comprise a first end connected to the first orthotic interface and a second end connected to a portion of the system configured to be positioned proximate a right shoulder of the user. The second member can comprise a first end connected to the second orthotic interface and a second end connected to a portion of the system configured to be positioned proximate a left shoulder of the user. The first actuator can be configured to apply a first tension to the first member. The second actuator can be configured to apply a second tension to the second member.

Abstract: A perforation and fracture tool including a perforating gun, a cone mandrel operatively connected to the gun, a slip operatively connected to the cone mandrel, and a seal element between the gun and the slip. A method for perforating and fracturing including initiating a perforation gun, driving a cone mandrel with evolved gas from the initiation, setting a seal, and pressuring against the seal to a fracture pressure. A borehole system including a borehole in a subsurface formation, a string in the borehole, and a perforation and fracture tool disposed within or as a part of the string.

Abstract: A treatment system including a settable and unsettable seal sub, an operation sub connected to the seal sub, the operation sub including a flow restrictor, and a selectively openable port biased to a closed position. A borehole system including a slickline, and a resettable seal connected to the slickline and runnable in the borehole on the slickline. A method for treating a formation adjacent a borehole including running the treatment system on a slickline to a target depth, flowing past the flow restrictor thereby causing the flow restrictor and a mandrel upon which the restrictor is mounted to move toward the seal sub, partially setting the seal sub and increasing pressure on the seal sub thereby fully setting the seal sub. A borehole system, including a borehole in a subsurface formation, a treatment system disposed within the borehole.

Abstract: A perforation and fracture tool including a perforating gun, a cone mandrel operatively connected to the gun, a slip operatively connected to the cone mandrel, and a seal element between the gun and the slip. A method for perforating and fracturing including initiating a perforation gun, driving a cone mandrel with evolved gas from the initiation, setting a seal, and pressuring against the seal to a fracture pressure. A borehole system including a borehole in a subsurface formation, a string in the borehole, and a perforation and fracture tool disposed within or as a part of the string.

Abstract: A perforation and fracture tool including a perforating gun, a cone mandrel operatively connected to the gun, a slip operatively connected to the cone mandrel, and a seal element between the gun and the slip. A method for perforating and fracturing including initiating a perforation gun, driving a cone mandrel with evolved gas from the initiation, setting a seal, and pressuring against the seal to a fracture pressure. A borehole system including a borehole in a subsurface formation, a string in the borehole, and a perforation and fracture tool disposed within or as a part of the string.

Abstract: A treatment system including a settable and unsettable seal sub, an operation sub connected to the seal sub, the operation sub including a flow restrictor, and a selectively openable port biased to a closed position. A borehole system including a slickline, and a resettable seal connected to the slickline and runnable in the borehole on the slickline. A method for treating a formation adjacent a borehole including running the treatment system on a slickline to a target depth, flowing past the flow restrictor thereby causing the flow restrictor and a mandrel upon which the restrictor is mounted to move toward the seal sub, partially setting the seal sub and increasing pressure on the seal sub thereby fully setting the seal sub. A borehole system, including a borehole in a subsurface formation, a treatment system disposed within the borehole.

Abstract: A wearable device having a body-to-liquid heat exchanger, configured to exchange heat between a user's body and a liquid, the body-to-liquid heat exchanger comprising a conformal bladder defining a serpentine portion of a liquid-flow path; a first conduit placing an inlet to the liquid-flow path in fluid communication with an outlet of a liquid-to-ambient-air heat exchanger; a second conduit placing an outlet of the liquid-flow path in fluid communication with an inlet of the liquid-to-ambient-air heat exchanger; and the liquid-to-ambient-air heat exchanger coupled to the first conduit and the second conduit.

Abstract: A device may include a high-level control layer comprising a convolutional neural network (CNN) configured to receive exoskeleton sensor data from one or more sensors on an exoskeleton and generate a user state estimate. The device may include a mid-level control layer configured to receive the user state estimate and generate a torque command for an actuator based on the user state estimate. The user state estimate may be an estimated gait phase, where the mid-level control layer generates the torque command as a function of the estimated gait phase based on an assistance profile. The high-level control layer may include a backward labeler and a real-time adaptation trainer. The backward labeler relabels ground truth gait phase from the exoskeleton sensor data using a local peak detection. The real-time adaptation trainer trains the CNN in a single epoch of backpropagation with the ground truth gait phase.

Abstract: An exemplary embodiment of the present disclosure provides a knee exoskeleton comprising a first interface, a second interface, an actuator, and a controller. The first interface can be configured to interface with a portion of a leg of a user above a knee joint of the user. The second interface can be configured to interface with a portion of the leg of the user below the knee joint of the user. The actuator can be configured to generate a torque to cause a movement of at least one of the first and second interfaces. The controller can be configured to control the actuator to vary the magnitude of torque generated by the actuator.

Abstract: Examples of systems and methods described herein may utilize augmented reality devices and pointers in generating intra-operative plans and providing guidance for knee surgery. A pointer may indicate one or more anatomical points. An augmented reality device may detect positions of knee anatomical features based on a position of the pointer and positions of fiducials associated with a marker affixed to body part proximate to a knee, such as a femur or a tibia. The augmented reality device may generate a planned resection plane based on the positions of the knee anatomical features, and determine an actual resection plane based on a view of a resection guide having a marker inserted in the guide. The augmented reality device may provide guidance to position the guide to align the actual resection plane with the planned resection plane.

Abstract: Examples of systems and methods described herein may utilize augmented reality headsets and removal resection guide markers in generating intra-operative plans and providing surgical guidance. A system may include a marker with an insertion member and a resection guide to be attached to a body part. The resection guide includes a slot that receives either the insertion member or a resection device. A system may guide placement of the resection guide using the marker removably attached to the surgical resection guide, such as by being inserted into the slot. After removal of the marker, the slot may guide a cutting device to cut along a resection plane.

Abstract: Examples of systems and methods described herein may utilize augmented reality headsets in generating intra-operative plans and providing surgical guidance. An augmented headset positioned to view anatomical landmarks may receive position information for the anatomical landmarks based on a position of a pointer having fiducials, generate a surgical plan based on the position information. Using the augmented reality headset, information to guide a resection device based on the surgical plan may be displayed.

Abstract: In one embodiment, one or more computing systems may determine a first display content to be displayed on a display. The first display content may be associated with one or more frames. The one or more computing systems may determine an optimization operation for the first display content based on one or more first parameters associated with the display or one or more second parameters associated with the one or more frames. The one or more computing systems may adjust the one or more frames based on the optimization operation. The adjusted one or more frames may have at least one optimized attribute comparing to the one or more frames before being adjusted. The one or more computing systems may output the adjusted one or more frames to the display to represent the first display content.

Abstract: A wearable device includes a housing to encompass a portion of a body part, biometric sensors coupled to the housing, a controller coupled to the housing and biometric sensors, a communication channel for communicating with external devices and a temperature regulator to controllably adjust a temperature of the housing. The wearable device is configured to provide remote controlled heating and cooling of the body part. The wearable device may include an evaporative heat exchanger and a thermoelectric heat pump. The wearable device may provide means for dissipating heat through vaporization of a substance or using an advective flux and phase transition.

Abstract: A frac assembly including a housing, a port defined radially through the housing, a sleeve disposed in the housing, a self-displacing seat disposed on the sleeve, and a biasing member disposed between the sleeve and the housing. A method for fracturing a wellbore including dropping an object into the wellbore, landing the object on a frac assembly in the wellbore, pressuring the wellbore, reclosing a sleeve of the frac assembly.

Abstract: An exemplary embodiment of the present invention provides an exosuit support system, comprising first and second orthotic interfaces, first and second members, and first and second actuators. The first and second orthotic interfaces can be configured to attach to left and right legs of a user, respectively. The first member can comprise a first end connected to the first orthotic interface and a second end connected to a portion of the system configured to be positioned proximate a right shoulder of the user. The second member can comprise a first end connected to the second orthotic interface and a second end connected to a portion of the system configured to be positioned proximate a left shoulder of the user. The first actuator can be configured to apply a first tension to the first member. The second actuator can be configured to apply a second tension to the second member.

Abstract: Disclosed is a cooling device, including a housing having a wall; a reservoir within the housing; a cooling material such as a liquid or gel in the reservoir; a pump within the housing; and a conduit passing adjacent the wall and through which the material is circulated by the pump from the reservoir back to the reservoir.

Abstract: A segmented button for a slip of a downhole tool comprising a plurality of segments affixed to one another. A slip for a downhole tool including a slip body, a recess in the slip body, and a button having a plurality of segments in the recess. A downhole system including a borehole in a subsurface formation, a string and/or wireline in the borehole, and a slip in the borehole, the slip including a slip body, a recess in the slip body, and a button having a plurality of segments in the recess.