Patents by Inventor Allen J Upward
Allen J Upward has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9480481Abstract: A tourniquet cuff includes a first sheet, a second sheet, and a seal joining the first sheet and second sheet to form an inflatable bladder. A securing strap is attached to the cuff. The cuff encircles the limb so that the bladder overlaps upon itself. A stiffener fits inside the bladder and sized to extend substantially the length of the bladder but not the entire bladder length, and to fit completely within the seal. A tubular port is connected to the bladder for directing gas into the bladder from a tourniquet instrument to which the port may be releasably connected, and a cuff marking weld is located on an outer surface of the cuff, having a shape selected to form a symbol or indicia that is visible to a user.Type: GrantFiled: April 16, 2013Date of Patent: November 1, 2016Assignee: Western Clinical Engineering Ltd.Inventors: James A. McEwen, Michael Jameson, Kenneth L. Glinz, Allen J. Upward
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Publication number: 20130289612Abstract: A low-cost contour cuff for surgical tourniquet systems comprises: a sheath containing an inflatable bladder, the sheath having an arcuate shape, an outer surface and a centerline equidistant between first and second side edges; a securing strap non-releasably attached to the outer surface and formed of substantially inextensible material having a shape that is predetermined and substantially flat, wherein the strap includes a bending portion near a first strap end and a fastening portion near a second strap end, and wherein the bending portion is adapted to allow twisting of the bending portion out of the substantially flat shape to facilitate positioning of the fastening portion into any of a plurality of positions in the substantially flat shape; and fastening means for releasably attaching the fastening portion of the securing strap to the outer surface whenever the sheath is curved into a position for surrounding a limb.Type: ApplicationFiled: July 1, 2013Publication date: October 31, 2013Inventors: James A. McEwen, Michael Jameson, Kenneth L. Glinz, Allen J. Upward
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Patent number: 8480842Abstract: A low-cost contour cuff for surgical tourniquet systems comprises: a sheath containing an inflatable bladder, the sheath having an arcuate shape, an outer surface and a centerline equidistant between first and second side edges; a securing strap non-releasably attached to the outer surface and formed of substantially inextensible material having a shape that is predetermined and substantially flat, wherein the strap includes a bending portion near a first strap end and a fastening portion near a second strap end, and wherein the bending portion is adapted to allow twisting of the bending portion out of the substantially flat shape to facilitate positioning of the fastening portion into any of a plurality of positions in the substantially flat shape; and fastening means for releasably attaching the fastening portion of the securing strap to the outer surface whenever the sheath is curved into a position for surrounding a limb.Type: GrantFiled: June 30, 2010Date of Patent: July 9, 2013Assignee: Western Clinical Engineering Ltd.Inventors: James A. McEwen, Michael Jameson, Kenneth L. Glinz, Allen J. Upward
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Patent number: 8425551Abstract: A disposable tourniquet cuff for encircling a patient's limb includes first and second sheets; a gas-tight peripheral seal joining the first sheet to the second sheet around a perimeter of those sheets to form an inflatable bladder within the perimeter. A stiffener fits inside the bladder and is sized to extend substantially the length of the bladder and to fit completely within the peripheral seal. The stiffener is separate from the second sheet and the stiffener surface is welded to the first sheet at a location within the bladder and away from the peripheral seal. A tubular port is provided for directing gas into the bladder from a tourniquet instrument to which the port may be connected. The port defines a passageway therethrough and includes a flange made of a thermoplastic polymer that is compatible for welding the flange to the first sheet.Type: GrantFiled: March 19, 2012Date of Patent: April 23, 2013Assignee: Western Clinical Engineering, LtdInventors: James A. McEwen, Michael Jameson, Kenneth L. Glinz, Allen J. Upward
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Publication number: 20120203267Abstract: A disposable tourniquet cuff for encircling a patient's limb includes first and second sheets; a gas-tight peripheral seal joining the first sheet to the second sheet around a perimeter of those sheets to form an inflatable bladder within the perimeter. A stiffener fits inside the bladder and is sized to extend substantially the length of the bladder and to fit completely within the peripheral seal. The stiffener is separate from the second sheet and the stiffener surface is welded to the first sheet at a location within the bladder and away from the peripheral seal. A tubular port is provided for directing gas into the bladder from a tourniquet instrument to which the port may be connected. The port defines a passageway therethrough and includes a flange made of a thermoplastic polymer that is compatible for welding the flange to the first sheet.Type: ApplicationFiled: March 19, 2012Publication date: August 9, 2012Applicant: WESTERN CLINICAL ENGINEERING LTD.Inventors: James A. McEwen, Michael Jameson, Kenneth L. Glinz, Allen J. Upward
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Patent number: 8142472Abstract: A low-cost disposable tourniquet cuff includes: a first sheet formed of flexible material that is impermeable to gas; a second sheet facing the first sheet and formed of flexible material impermeable to gas; a bladder seal joining the first sheet to the second sheet around a perimeter to form an inflatable bladder within the perimeter; port means communicating pneumatically with the bladder and releasably connectable to a tourniquet instrument; stiffener means contained within the inflatable bladder and formed of gas-impermeable material less flexible than the first sheet, wherein the stiffener means has a stiffener width dimension less than the bladder width dimension and is joined to the first sheet to form a non-inflatable portion of the first sheet; and securing means attached to the non-inflatable portion of the first sheet and adapted to allow a surgical user to releasably secure the cuff around the limb at the desired location so that the bladder overlaps upon itself.Type: GrantFiled: July 2, 2009Date of Patent: March 27, 2012Assignee: Western Clinical Engineering, LtdInventors: James A. McEwen, Michael Jameson, Kenneth L. Glinz, Allen J. Upward
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Patent number: 8137378Abstract: Low-cost tourniquet cuff apparatus includes: an inflatable bladder formed of flexible material having a bladder width dimension when the bladder is uninflated and a having a bladder length dimension sufficient for encircling a limb of a surgical patient at a desired location on the limb and for overlapping upon itself, wherein the bladder includes a bladder first inner surface facing a bladder second inner surface along the bladder length dimension and across the bladder width dimension when the bladder is uninflated; securing means for securing the overlapping bladder around the limb at the desired location; port means communicating pneumatically with the inflatable bladder and releasably connectable to a tourniquet instrument for supplying the bladder with pressurized gas; and stiffener means having a predetermined stiffness and having a stiffener width dimension less than the bladder width dimension, wherein the stiffener means is non-releasably attached to the bladder first inner surface within the inflatType: GrantFiled: December 14, 2005Date of Patent: March 20, 2012Assignee: Western Clinical Engineering, LtdInventors: James A. McEwen, Michael Jameson, Kenneth L Glinz, Allen J Upward
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Publication number: 20100268267Abstract: A low-cost contour cuff for surgical tourniquet systems comprises: a sheath containing an inflatable bladder, the sheath having an arcuate shape, an outer surface and a centerline equidistant between first and second side edges; a securing strap non-releasably attached to the outer surface and formed of substantially inextensible material having a shape that is predetermined and substantially flat, wherein the strap includes a bending portion near a first strap end and a fastening portion near a second strap end, and wherein the bending portion is adapted to allow twisting of the bending portion out of the substantially flat shape to facilitate positioning of the fastening portion into any of a plurality of positions in the substantially flat shape; and fastening means for releasably attaching the fastening portion of the securing strap to the outer surface whenever the sheath is curved into a position for surrounding a limb.Type: ApplicationFiled: June 30, 2010Publication date: October 21, 2010Applicant: WESTERN CLINICAL ENGINEERING, LTD.Inventors: James A. McEwen, Michael Jameson, Kenneth L. Glinz, Allen J. Upward
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Patent number: 7758607Abstract: A low-cost contour cuff for surgical tourniquet systems comprises: a sheath containing an inflatable bladder, the sheath having an arcuate shape, an outer surface and a centerline equidistant between first and second side edges; a securing strap non-releasably attached to the outer surface and formed of substantially inextensible material having a shape that is predetermined and substantially flat, wherein the strap includes a bending portion near a first strap end and a fastening portion near a second strap end, and wherein the bending portion is adapted to allow twisting of the bending portion out of the substantially flat shape to facilitate positioning of the fastening portion into any of a plurality of positions in the substantially flat shape; and fastening means for releasably attaching the fastening portion of the securing strap to the outer surface whenever the sheath is curved into a position for surrounding a limb.Type: GrantFiled: March 20, 2006Date of Patent: July 20, 2010Inventors: James A. McEwen, Michael Jameson, Kenneth L Glinz, Allen J Upward
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Publication number: 20100004676Abstract: A low-cost disposable tourniquet cuff includes: a first sheet formed of flexible material that is impermeable to gas; a second sheet facing the first sheet and formed of flexible material impermeable to gas; a bladder seal joining the first sheet to the second sheet around a perimeter to form an inflatable bladder within the perimeter; port means communicating pneumatically with the bladder and releasably connectable to a tourniquet instrument; stiffener means contained within the inflatable bladder and formed of gas-impermeable material less flexible than the first sheet, wherein the stiffener means has a stiffener width dimension less than the bladder width dimension and is joined to the first sheet to form a non-inflatable portion of the first sheet; and securing means attached to the non-inflatable portion of the first sheet and adapted to allow a surgical user to releasably secure the cuff around the limb at the desired location so that the bladder overlaps upon itself.Type: ApplicationFiled: July 2, 2009Publication date: January 7, 2010Applicant: Western Clinical Engineering Ltd.Inventors: James A. McEwen, Michael Jameson, Kenneth L. Glinz, Allen J. Upward