Abstract: A laser strikes and aseptically heats or sterilizes the end of two flexible tube ends for connection. Tube holders are pushed toward each other to bring the tube ends into contact. A weld detector checks the characteristics of the weld. A laser optics assembly may be used to change the direction of the laser and focus the laser at the tube ends. In addition, a crimping device is used to compress a single flexible tube for disconnection. The laser strikes the compressed area. The crimping device continues to pinch the area and forms a seal in the tube. The tube is separated into two tube segments, each segment has a sealed end.

Abstract: A portable childbirth chair including a base having a seat portion and two leg portions extending outwardly therefrom, two leg supports, each one being hingedly attached to a different one of the leg portions, two footrests each one being adjustably attached to a different one of the leg supports, adjustment straps for adjusting the inclination of the leg supports relative the base, a backrest hingedly attached to the seat portion, a backrest support frame extending from the seat portion, and a pair of backrest adjustment rods pivotally attached to the backrest at one end and having other ends adapted to engage apertures formed along the backrest support frame so as to adjust the inclination of the backrest relative the base. The chair may be compactly collapsed for easy shipment and storage by telescoping the backrest support frame into the base, and folding the backrest and the two leg supports over the base. The chair also includes electronic monitoring apparatus.