Abstract:
An apparatus for producing medical foam for wound care or hair stimulation has a foam generation unit (12) including a fluid reservoir (290), a fluid delivery line (216) and a foam generation tip (280). The apparatus also includes a compressed gas unit (1) having at least one container of compressed gas (27, 28), a source of electric power (65), and a gas regulator valve (55). A supply of wound care or hair stimulating solution is communicably connected to the foam generation tip such that when the apparatus is operated medical foam is produced by the foam generator tip.
Abstract:
An apparatus (50) for laterally constraining the shoulder strap (16) of an arm supporting orthopedic sling (12) includes an armband (52) for encircling and attaching to the well arm of the wearer and an anchor strap (54) interconnected between the armband and the shoulder strap for pulling the shoulder strap laterally away from the wearer's neck and holding that strap such that the weight of the supported arm is borne at least primarily by the shoulder rather than the neck.
Abstract:
A dual lumen syringe (10) includes a body (12) having a pair of elongate cavities or lumens (14, 16) formed therein. A directional valve (24, 32) is associated with each lumen. The valve is alternated between the first position wherein the lumen is communicably connected to a fluid inlet (28, 36) and a second position wherein the lumen is connected with a fluid outlet (26, 34). There are a pair of elongate plungers (102, 108), which are fixedly interconnected by a handle (114). Each plunger is received and longitudinally slidable in a reciprocating manner through a respective lumen. The valves are switched to a first position wherein the lumens are interconnected with the fluid inlets and the plunger is retracted to aspirate fluids through the respective inlets and into the lumens. The valves are then switched to a second position to communicably interconnect the lumens with the outlets. The plungers are then simultaneously driven inwardly through the respective lumens to drive the fluids simultaneously through the outlets to a dispensing tip (50) permanently connected to the body and in communication with the outlets.
Abstract:
A reversible pivoting vane rotary compressor includes a housing (130), and a rotor (140) mounted eccentrically within a chamber (114) to define a cresent shaped compression chamber. A pair of reversible intake and exhaust ports are connected to the compression chamber. At least one adjoining pair of curved vanes (170 a-h) are pivotally attached to the rotor and extend in generally opposite arcuate directions. A motor is provided for rotatably driving the rotor alternately in opposing first and second directions. The compressed air is provided to an oxygen concentrator (10).
Abstract:
A vented dual port centrifuge tube includes a tubular receptacle having upper and lower ends. A first common inlet and outlet port is formed in the upper end and a second common inlet and outlet port is formed in the lower end. A piston is sealably and slidably mounted within a chamber of the receptacle. A vent is supported in the upper end of the receptacle and a flexible vent pipe attached to the piston is communicably interconnected between the vent and a lower region of the chamber between the piston and the lower end of the receptacle. Air pressure in the lower region of the receptacle is equalized or neutralized as biological fluids and separated constituent components are introduced into and aspirated from the receptacle through the common inlet ports.
Abstract:
A dual piston centrifuge tube includes an elongate tubular receptacle having upper and lower ends interconnected by a sidewall. First and second common inlet/outlet ports are formed respectively in the upper and lower ends of the tubular receptacle. First and second liquid impermeable pistons are mounted within an interior chamber of the tubular receptacle for sliding longitudinally therein. The first piston is interconnected to the first port by a flexible fluid-conducting pipe that extends through the first piston to communicate with a region of the chamber between the first and second pistons. Blood or other biological fluid is introduced through the first port and pipe into the tubular receptacle to drive the first piston upwardly. The tube is centrifuged to separate the fluid into a plurality of constituent component levels between the first and second pistons. One of the layers is aspirated through the pipe and first port and re-introduced into the receptacle through the second port. The tube is centrifuged a second time to separate the re-introduced fluid into constituent components, which are then aspirated through the second port.
Abstract:
A method for more effectively concentrating blood platelets for use in medical procedures includes providing preparation and concentrating tubes. Anticoagulated whole blood is added to the preparation tube, which is centrifuged to separate red blood cells from a platelet plasma suspension The platelet plasma suspension is aspirated and loaded into the concentrating tube, which is itself centrifuged to separate the platelet plasma suspension into platelet poor plasma and platelet rich plasma layers. The platelet poor plasma is aspirated through a port of the concentrating tube and the remaining concentrated PRP is aspirated through the same or a different port of the concentrating tube.
Abstract:
A centrifuge tube assembly includes an elongate tubular receptacle having upper and lower ends and a side wall that extends between the ends. A cap attached to the receptacle carries a common inlet/outlet port formed therethrough for communication with an interior chamber of the tubular receptacle. A liquid impermeable piston is longitudinally movable through the receptacle chamber and sealably interengages an interior wall of the receptacle. The piston separates upper and lower regions of the chamber, which respectively communicate with the inlet/outlet port and a pressure neutralizing vent. Biological products are introduced into and aspirated from the receptacle through the inlet/outlet port.
Abstract:
A method and apparatus (10) are provided for installing types of broadcast fumigation film (12), such as LDPE, HOPE, TIF and VIF, over a field (14) treated with a fumigant. An elongate first film strip (18a) is extended across the field, with simultaneous fumigant injection under the film and a melted hot glue adhesive (51) is applied to the first strip along a trailing longitudinal edge (62) thereof. An elongate second film strip (18b) is applied across the field and juxtaposed across the first film strip with a leading longitudinal edge (60) of the second film strip overlapping the trailing longitudinal edge of the first strip. The leading longitudinal edge of the second strip is pressed against trailing longitudinal edge of the first strip to adhesively interengage the first and second strips along a seam (S) that joins the strips together.
Abstract:
A warning light assembly for a watercraft includes a selectively activatable light for mounting to the watercraft such that the light is clearly visible to persons in nearby watercraft. There is a power source for being carried by the watercraft. The light is operatively connected to the power source through a switch that is alternatable between open and closed states. At least one mechanism is provided for sensing when the watercraft is braking or decelerating. A control device is responsive to the sensing mechanism for closing the switch when the watercraft brakes or decelerates. This causes the light to activate so that a braking or deceleration warning is provided to nearby watercraft.