A medical tube is provided which can reduce the acoustic power level therein when air is supplied through the tube. The medical tube includes: a reference side bellows tube portion configured to be a flexible bellows-like tube including a plurality of reference rings in series in an axial direction, the reference rings each extending annularly or helically to form a ring; and a deformed side tube portion configured to be a tube shaped differently from the reference side bellows tube portion. Here, a plurality of the reference side bellows tube portions and a plurality of the deformed side tube portions are alternately arranged in the axial direction. At least one of the reference side bellows tube portions has an axial length less than 112 mm.

A pump apparatus includes a pump configured for moving air, a housing supporting the pump, and an air output hose in communication with the pump. The housing further includes a rest for retaining a portion of the air output hose. The rest forms a u-shape having two side walls and a valley therebetween.

A pump apparatus includes a pump configured for moving air, a housing supporting the pump, and an air output hose in communication with the pump. The housing further includes a rest for retaining a portion of the air output hose. The rest forms a u-shape having two side walls and a valley therebetween.

A system includes a pump having a filter. The filter includes a HEPA material configured for filtering air and the pump used to inflate an inflatable device configured to support a patient. A kit includes a pump configured for moving air to inflate an inflatable device, and a removable filter including a HEPA material couplable to the pump and configured to filter the air to inflate the inflatable device. The inflatable device configured to support a patient on a supporting surface.

A system includes a pump having a filter. The filter includes a HEPA material configured for filtering air and the pump used to inflate an inflatable device configured to support a patient. A kit includes a pump configured for moving air to inflate an inflatable device, and a removable filter including a HEPA material couplable to the pump and configured to filter the air to inflate the inflatable device. The inflatable device configured to support a patient on a supporting surface.

A liquid cooled cable (1) includes a conductor (2) with at least two cable strands (3). The conductor (2) is encompassed by a hose (5) spaced in a sectional view at least partially apart from the conductor (2) by an interstitial space (6). The interstitial space (6) is arranged between an inner wall (7) of the hose (5) and the cable strands (3) of the conductor (2). The interstitial space (6) conducts a cooling liquid (15) along the conductor (2).

The present invention discloses a telescopic hose and the process technology thereof. The telescopic hose comprises an elastic support member that can be configured to conduct strong electricity; the support member comprises a first wire and a second wire, and the first wire and the second wire are arranged in a double helix structure in cooperation with each other; a hose wall that is wrapped around the outer side of the support member, and at least part of the hose wall between the first wire and the second wire forms a corrugated portion. Through the setting of the above structures, the hose can not only conduct strong electricity, but also stretch back and forth and turn at any angle. In addition, the hose structure is relatively simple, the amount of gas and liquid passing per unit time is larger.

Aspects of this disclosure can be used to implement a braided cover comprising a plurality of left handed fibers and a plurality of right-handed fibers braided into a hollow tube of fabric. Such a braided cover may be adapted to form a plurality of annular ridges and annular valleys along the longitudinal length of the braided cover when compressed from an extended length to a compressed length.

Aspects of this disclosure can be used to implement a braided cover comprising a plurality of left handed fibers and a plurality of right-handed fibers braided into a hollow tube of fabric. Such a braided cover may be adapted to form a plurality of annular ridges and annular valleys along the longitudinal length of the braided cover when compressed from an extended length to a compressed length.

A tubing apparatus includes corrugated tubing including convolutions of peaks and valleys in the body of the tubing; an electrically conductive or semi-conductive, polymer jacket disposed along an exterior length of the corrugated tubing; wherein the jacket provides protection to the inner corrugated tubing from damage resulting from electrical arcing at levels ranging from at least 9 coulombs at a waveform of 10 microseconds×1000 microseconds.