Abstract: A holder for securely, but removably, attaching a medical tube to the body of a patient. The holder comprises a clip releasably connectable to the medical tube, a base for supporting the clip and a connecting component for connecting the clip to the base. An adhesive pad can be associated with the base to secure the holder to the patient.

Abstract: An air flow and filtration control system in the form of a headgear which is worn by a physician during a surgical procedure, a technician during an assembly process, or any other user wherein controlled air flow and air filtration is required or desired. The flow-through system includes a relatively rigid, open frame, skeleton headgear structure which substantially surrounds the head of the wearer. A fan is mounted in the headgear structure. The fan is positioned to move air through ducts formed in the headgear structure. A shroud (or hood) is draped over and attached to the headgear structure in such a fashion as to completely cover the headgear structure and to cover at least a portion of the wearer in order to maintain sterile or controlled conditions relative to the wearer. The shroud includes filtration areas which may encompass the entire shroud. The filtration areas may be disposed adjacent tot he fans when the shroud is placed over the headgear structure.

Abstract: A scalpel blade sheath which encloses and retains a scalpel blade therein. A scalpel handle is selectively inserted into the sheath whereby the scalpel blade is securely attached to the scalpel handle in preparation for cutting operations. The sheath is selectively slipped onto the scalpel handle to expose the blade for the cutting operation. The sheath is repositioned over the scalpel blade to protect the blade (and the user thereof) when the cutting operation is concluded. When the blade is to be removed from the scalpel handle after the cutting operation, the scalpel blade is retained within the sheath for safe and sanitary disposal of the blade and the sheath.

Abstract: A cold temperature therapy device for use on localized areas of the human body. The device includes a flexible, pliable liquid circulating pad which may be readily conformed to a portion of the human body. The pad is connected to a liquid source via a suitable pumping or liquid moving device which supplies liquid to the pad. The liquid moving device may be manual or powered. The liquid is, effectively, stored in a measurement tray which is disposed adjacent to a cooling unit. The apparatus (with the exception of the pad, the manual pump and the connecting conduits) is maintained in a carrying case which can be insulated to enhance the operation of the cooling device.

Abstract: A surgical suction wand comprising a generally tubular body with a hollow tip at one end thereof, a cap releasably closing the other end of the tubular body, and a filter member within the body and joinable to the under surface of the cap. The hollow tip communicates with the interior of the body. A tubular connector is mounted externally on the cap and communicates with the interior of the cap and the body. The filter member within the body defines a first chamber between the filter member and the body and a second chamber within the filter member which communicates with the tubular connector through the cap. One or more apertures through the filter member permit limited communication between the first and second chambers. The cap has positioning means therein for locating and securing one end of the filter member within the cap and body. The other end of the filter member is closed and disposed in the body adjacent to the hollow tip.

Abstract: An air flow and filtration control system in the form of a headgear which is worn by a physician during a surgical procedure, a technician during an assembly process, or any other user wherein controlled air flow and air filtration is required or desired. The flow-through system includes a relatively rigid, open frame, skeleton headgear structure which substantially surrounds the head of the wearer. A fan is mounted in the headgear structure. The fan is positioned to move air through ducts formed in the headgear structure. A shroud (or hood) is draped over and attached to the headgear structure in such a fashion as to completely cover the headgear structure and to cover at least a portion of the wearer in order to maintain sterile or controlled conditions relative to the wearer. The shroud includes filtration areas which may encompass the entire shroud. The filtration areas may be disposed adjacent to the fans when the shroud is placed over the headgear structure.

Abstract: A piston ring having an annular groove in its outer periphery forming axially-spaced outer shoulders at each side of the ring, such groove including a bottom land and a pair of axially-spaced, radially intermediate lands connected to the bottom land and the outer bearing faces by radially outwardly diverging side walls forming stepped sides for the groove with the groove being filled with a layer of electro-deposited chromium. The deposited chromium and the bearing faces form a continuous axially convex surface on the face of the seal ring.

Abstract: A method of making piston rings comprising forming annular stepped grooves in the outer periphery of a plurality of piston ring blanks, stacking the blanks on a rotatable arbor, electro-depositing a layer of chromium in the grooves and on the outer surfacs of the ring blanks, and removing an outer portion of the chromium layer and the outer bearing faces of the ring blanks to form a plurality of piston rings having a continually axially convex surface on the face of the ring formed by the deposited chromium and bearing faces of the ring.