Abstract: Headgear includes a base configured to engage the head of the wearer. A force absorbing structure is carried by the base. In some cases, the force absorbing structure includes a surface including a coarse macrostructure configured to facilitate absorbing forces applied to the headgear. The coarse macrostructure includes a plurality of protrusions, and at least one of the protrusions has a thickness of at least about 0.50 mm. In some cases, the force absorbing structure includes a porous macrostructure configured to facilitate absorbing forces applied to the headgear. The porous macrostructure includes a plurality of passageways each having a width of at least about 2.00 mm.

Abstract: Marker systems and methods for implanting a marker are provided. In one embodiment, a marker system can include an elongate cannulated tube, a marker capsule, and a driver member. The cannulated tube can have a piercing feature arranged at a distal end thereof that is configured to create a working portal through tissue such that fluid can be delivered into the tissue to form a bleb. The marker capsule can be removably disposed within the lumen of the cannulated tube. The marker capsule can include a transmission antenna, and an arranging feature disposed on an external surface configured to facilitate rotation of the marker capsule within the bleb. The driver member can be arranged within the lumen of the cannulated tube proximal to the marker capsule. The drive member can be configured to advance distally to displace the marker capsule through the working portal and into the bleb.

Abstract: Headgear includes a base configured to engage the head of the wearer. A force absorbing structure is carried by the base. In some cases, the force absorbing structure includes a surface including a coarse macrostructure configured to facilitate absorbing forces applied to the headgear. The coarse macrostructure includes a plurality of protrusions, and at least one of the protrusions has a thickness of at least about 0.50 mm. In some cases, the force absorbing structure includes a porous macrostructure configured to facilitate absorbing forces applied to the headgear. The porous macrostructure includes a plurality of passageways each having a width of at least about 2.00 mm.

Abstract: A system and method for marking sites of biopsied tissues using markers, such as radiopaque microspheres, ink-like stain, and radio-frequency identification chips, delivered to the site of the biopsy by a construct advanced through a port in a colonoscope and locatable by x-ray equipment, a camera attached to a colonoscope, or a radio-frequency identification chip reader.