Abstract: A fixation component includes tines extending from a base portion of the fixation component. Each tine is elastically deformable between a pre-set position and an open position. Each tine includes a hook segment extending from a proximal end near the base portion to a distal end. Each tine also includes a distal segment extending from the distal end of the hook segment to a tissue-piercing tip. When positioned in the pre-set position, the hook segment extends along a pre-set curvature that encloses an angle between 135 degrees and 270 degrees, and the distal segment extends away from a longitudinal axis of the fixation component.

Abstract: A freeze dryer having a collector chamber is provided with a sensor for detecting the presence of moisture in the chamber so that the vacuum pump cannot be operated if moisture is present. The refrigeration system can also be deactivated. This precludes moisture from being pulled into the vacuum pump where it will mix with pump oil and shorten the life of the pump. The moisture sensor is also coupled with a warning circuit which advises the operator that the system is inoperable and is capable of displaying the reason for inoperability.