Abstract: A medical lumen-expansion balloon may include a generally cylindrical central body between first and second body end portions, a low-profile unexpanded first state and a radially-expanded second state, wherein the first body end portion is constrained by fiber material such that it will not expand longitudinally and circumferentially beyond a predetermined size, and the central body is constrained by fiber material so as to be circumferentially substantially noncompliant, but is longitudinally compliant, such that it will elongate with increased volume but will not substantially radially expand.

Abstract: A virtual reality (VR) kit for storing and transporting components of a VR system is described. The VR kit includes receptacles for receiving and/or retaining positions of one or more of a VR headset, a tablet device, a controller, and a charging module. The VR kit can also include receptacles for receiving and/or retaining positions of a set of headphones, a set of earphones, and other material associated with use of a VR system. The VR kit includes a handle that maintains balance of the system during transportation the components of a VR system, while allowing a user to carry other objects. The VR kit is also designed for use in a clinical setting, by including materials that promote sanitization of components of a VR system. The VR kit is compact to facilitate storage of multiple units of the system in small spaces.

Abstract: A medical lumen-expansion balloon may include a generally cylindrical central body between first and second body end portions, a low-profile unexpanded first state and a radially-expanded second state, wherein the first body end portion is constrained by fiber material such that it will not expand longitudinally and circumferentially beyond a predetermined size, and the central body is constrained by fiber material so as to be circumferentially substantially noncompliant, but is longitudinally compliant, such that it will elongate with increased volume but will not substantially radially expand.