Patents by Inventor Richard W. Raburn
Richard W. Raburn 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).
-
Patent number: 10827844Abstract: An air inflatable mattress and mattress coverlet are provided for the prevention and treatment of decubitus ulcers (i.e., pressure sores or bedsores). The mattress incorporates a user selectable static or alternating air powered support surface for more uniformly redistributing pressure exerted on a patient's skin. The mattress coverlet encompasses a low air loss feature independent of the mattress's user selectable air powered support surface. Such low air loss feature provides a patient contact surface exhibiting a high moisture vapor transfer ratio in conjunction with a forced air flow to aid in reducing the moisture and heat near the patient's body. Both the mattress and mattress coverlet are driven by an external control system which houses the user controls, as well as the necessary pumps, regulators, and valving.Type: GrantFiled: September 6, 2016Date of Patent: November 10, 2020Assignee: Span-America Medical Systems, Inc.Inventors: Wanda C. McKnight, Richard W. Raburn, Russell J. Weston, Joseph A. Benedict
-
Patent number: 10722041Abstract: An air inflatable mattress and mattress coverlet are provided for the prevention and treatment of decubitus ulcers (i.e., pressure sores or bedsores). The mattress incorporates a user selectable static or alternating air powered support surface for more uniformly redistributing pressure exerted on a patient's skin. The mattress coverlet encompasses a low air loss feature independent of the mattress's user selectable air powered support surface. Such low air loss feature provides a patient contact surface exhibiting a high moisture vapor transfer ratio in conjunction with a forced air flow to aid in reducing the moisture and heat near the patient's body. Both the mattress and mattress coverlet are driven by an external control system which houses the user controls, as well as the necessary pumps, regulators, and valving.Type: GrantFiled: September 6, 2016Date of Patent: July 28, 2020Assignee: Span-America Medical Systems, Inc.Inventors: Wanda C. McKnight, Richard W. Raburn, Russell J. Weston, Joseph A. Benedict
-
Publication number: 20170027791Abstract: An air inflatable mattress and mattress coverlet are provided for the prevention and treatment of decubitus ulcers (i.e., pressure sores or bedsores). The mattress incorporates a user selectable static or alternating air powered support surface for more uniformly redistributing pressure exerted on a patient's skin. The mattress coverlet encompasses a low air loss feature independent of the mattress's user selectable air powered support surface. Such low air loss feature provides a patient contact surface exhibiting a high moisture vapor transfer ratio in conjunction with a forced air flow to aid in reducing the moisture and heat near the patient's body. Both the mattress and mattress coverlet are driven by an external control system which houses the user controls, as well as the necessary pumps, regulators, and valving.Type: ApplicationFiled: September 6, 2016Publication date: February 2, 2017Inventors: Wanda C. McKnight, Richard W. Raburn, Russell J. Weston, Joseph A. Benedict
-
Publication number: 20170007482Abstract: An air inflatable mattress and mattress coverlet are provided for the prevention and treatment of decubitus ulcers (i.e., pressure sores or bedsores). The mattress incorporates a user selectable static or alternating air powered support surface for more uniformly redistributing pressure exerted on a patient's skin. The mattress coverlet encompasses a low air loss feature independent of the mattress's user selectable air powered support surface. Such low air loss feature provides a patient contact surface exhibiting a high moisture vapor transfer ratio in conjunction with a forced air flow to aid in reducing the moisture and heat near the patient's body. Both the mattress and mattress coverlet are driven by an external control system which houses the user controls, as well as the necessary pumps, regulators, and valving.Type: ApplicationFiled: September 6, 2016Publication date: January 12, 2017Inventors: Wanda C. McKnight, Richard W. Raburn, Russell J. Weston, Joseph A. Benedict
-
Patent number: 8893340Abstract: A mattress cover is disclosed for redirecting shear on a patient's skin away from the areas of the body relatively more likely to develop decubitus ulcers. The mattress cover includes an upper portion designed to cover the topside of a mattress, and at least one shear transfer zone attached to an underside of the upper portion of the mattress cover. The shear transfer zone(s) may be made of a low shear material so as to create a low friction interface between the mattress and the mattress cover to reduce shear forces exerted by the mattress. Additionally, the shear transfer zone(s) may be arranged such that a large portion of the shear forces exerted by the mattress can be redirected to areas of the body that are relatively less likely to develop decubitus ulcers.Type: GrantFiled: May 14, 2013Date of Patent: November 25, 2014Assignee: Span-America Medical Systems, Inc.Inventors: James R. O'Reagan, Richard W. Raburn
-
Publication number: 20140208520Abstract: An air inflatable mattress and mattress coverlet are provided for the prevention and treatment of decubitus ulcers (i.e., pressure sores or bedsores). The mattress incorporates a user selectable static or alternating air powered support surface for more uniformly redistributing pressure exerted on a patient's skin. The mattress coverlet encompasses a low air loss feature independent of the mattress's user selectable air powered support surface. Such low air loss feature provides a patient contact surface exhibiting a high moisture vapor transfer ratio in conjunction with a forced air flow to aid in reducing the moisture and heat near the patient's body. Both the mattress and mattress coverlet are driven by an external control system which houses the user controls, as well as the necessary pumps, regulators, and valving.Type: ApplicationFiled: February 11, 2014Publication date: July 31, 2014Inventors: Wanda J. Totton, Richard W. Raburn, Russell J. Weston, Joseph A. Benedict
-
Publication number: 20130247304Abstract: A mattress cover is disclosed for redirecting shear on a patient's skin away from the areas of the body relatively more likely to develop decubitus ulcers. The mattress cover includes an upper portion designed to cover the topside of a mattress, and at least one shear transfer zone attached to an underside of the upper portion of the mattress cover. The shear transfer zone(s) may be made of a low shear material so as to create a low friction interface between the mattress and the mattress cover to reduce shear forces exerted by the mattress. Additionally, the shear transfer zone(s) may be arranged such that a large portion of the shear forces exerted by the mattress can be redirected to areas of the body that are relatively less likely to develop decubitus ulcers.Type: ApplicationFiled: May 14, 2013Publication date: September 26, 2013Inventors: James R. O'Reagan, Richard W. Raburn
-
Patent number: 8438682Abstract: A mattress cover is disclosed for redirecting shear on a patient's skin away from the areas of the body relatively more likely to develop decubitus ulcers. The mattress cover includes an upper portion designed to cover the topside of a mattress, and at least one shear transfer zone attached to an underside of the upper portion of the mattress cover. The shear transfer zone(s) may be made of a low shear material so as to create a low friction interface between the mattress and the mattress cover to reduce shear forces exerted by the mattress. Additionally, the shear transfer zone(s) may be arranged such that a large portion of the shear forces exerted by the mattress can be redirected to areas of the body that are relatively less likely to develop decubitus ulcers.Type: GrantFiled: December 7, 2010Date of Patent: May 14, 2013Assignee: Span-America Medical Systems, Inc.Inventors: James R. O'Reagan, Richard W. Raburn
-
Publication number: 20110131733Abstract: A mattress cover is disclosed for redirecting shear on a patient's skin away from the areas of the body relatively more likely to develop decubitus ulcers. The mattress cover includes an upper portion designed to cover the topside of a mattress, and at least one shear transfer zone attached to an underside of the upper portion of the mattress cover. The shear transfer zone(s) may be made of a low shear material so as to create a low friction interface between the mattress and the mattress cover to reduce shear forces exerted by the mattress. Additionally, the shear transfer zone(s) may be arranged such that a large portion of the shear forces exerted by the mattress can be redirected to areas of the body that are relatively less likely to develop decubitus ulcers.Type: ApplicationFiled: December 7, 2010Publication date: June 9, 2011Applicant: SPAN-AMERICA MEDICAL SYSTEMS, INC.Inventors: James R. O'Reagan, Richard W. Raburn
-
Patent number: 7296315Abstract: An air inflatable mattress and mattress coverlet are provided for the prevention and treatment of decubitus ulcers (i.e., pressure sores or bedsores). The mattress incorporates a user selectable static or alternating air powered support surface for more uniformly redistributing pressure exerted on a patient's skin. The mattress coverlet encompasses a low air loss feature independent of the mattress's user selectable air powered support surface. Such low air loss feature provides a patient contact surface exhibiting a high moisture vapor transfer ratio in conjunction with a forced air flow to aid in reducing the moisture and heat near the patient's body. Both the mattress and mattress coverlet are driven by an external control system which houses the user controls, as well as the necessary pumps, regulators, and valving.Type: GrantFiled: August 30, 2004Date of Patent: November 20, 2007Assignee: Span-America Medical Systems, Inc.Inventors: Wanda J. Totton, Richard W. Raburn, Russell J. Weston, Joseph Benedict
-
Patent number: 6848138Abstract: Multiple varieties of patient support surfaces are presented with a common modular assembly primarily including a perimeter chassis and integrated upper support element. Perimeter bolsters provide relatively firmer support for gently prompting a patient towards the center of the bed, without obstructing regular entry and egress. The added stability facilitates safer transfers and better sitting at the edge of the bed. Pressure redistribution air cylinders (turned either longitudinally or laterally) are captured by shaped, slotted inner bolsters and underside arches of an integral foam topper. Each foam topper integrally incorporated may include a sloping heel pressure relief section for redistributing load to relatively more pressure-tolerant lower legs and calves.Type: GrantFiled: December 29, 1999Date of Patent: February 1, 2005Inventors: Edmund K. Maier, Richard W. Raburn, Mark D. Chastain
-
Patent number: 6782574Abstract: An air inflatable mattress and mattress coverlet are provided for the prevention and treatment of decubitus ulcers (i.e., pressure sores or bedsores). The mattress incorporates a user selectable static or alternating air powered support surface for more uniformly redistributing pressure exerted on a patient's skin. The mattress coverlet encompasses a low air loss feature independent of the mattress's user selectable air powered support surface. Such low air loss feature provides a patient contact surface exhibiting a high moisture vapor transfer ratio in conjunction with a forced air flow to aid in reducing the moisture and heat near the patient's body. Both the mattress and mattress coverlet are driven by an external control system which houses the user controls, as well as the necessary pumps, regulators, and valving.Type: GrantFiled: July 18, 2001Date of Patent: August 31, 2004Assignee: Span-America Medical Systems, Inc.Inventors: Wanda J. Totton, Richard W. Raburn, Russell J. Weston, Joseph Benedict
-
Publication number: 20020073489Abstract: An air inflatable mattress and mattress coverlet are provided for the prevention and treatment of decubitus ulcers (i.e., pressure sores or bedsores). The mattress incorporates a user selectable static or alternating air powered support surface for more uniformly redistributing pressure exerted on a patient's skin. The mattress coverlet encompasses a low air loss feature independent of the mattress's user selectable air powered support surface. Such low air loss feature provides a patient contact surface exhibiting a high moisture vapor transfer ratio in conjunction with a forced air flow to aid in reducing the moisture and heat near the patient's body. Both the mattress and mattress coverlet are driven by an external control system which houses the user controls, as well as the necessary pumps, regulators, and valving.Type: ApplicationFiled: July 18, 2001Publication date: June 20, 2002Applicant: SPAN-AMERICA MEDICAL SYSTEM, INC.Inventors: Wanda J. Totton, Richard W. Raburn, Russell J. Weston, Joseph Benedict
-
Patent number: 6256819Abstract: A foam cushion suitable for use such as with a wheelchair provides a combination of general pressure relief and positioning control over legs of a patient possibly otherwise having reduced or impaired motor control skills. A desired leg position is achieved by separating the legs and supporting them in a generally parallel position. Two base pieces have predetermined upper profiles and are glued to an upper support element having integrated cubic elements for pressure relief. Channels between adjacent cubic elements facilitate flexure of the upper element to conform to the contours of the two base pieces. Relatively high ILD foam characteristics and relatively high foam densities combined with the subject structure give good results for support and for product life, including compression fatigue considerations.Type: GrantFiled: January 22, 1998Date of Patent: July 10, 2001Assignee: Span-America Medical Systems, Inc.Inventors: Edmund K. Maier, Richard W. Raburn
-
Patent number: 6223369Abstract: Multiple varieties of patient support surfaces are presented with a common modular assembly primarily including a perimeter chassis and integrated upper support element. Perimeter bolsters provide relatively firmer support for gently prompting a patient towards the center of the bed, without obstructing regular entry and egress. The added stability facilitates safer transfers and better sitting at the edge of the bed. Pressure redistribution air cylinders (turned either longitudinally or laterally) are captured by shaped, slotted inner bolsters aid underside arches of an integral foam topper. All such features work collectively to cradle and surround the air cylinders. The resulting interlocking, integrated design provides flexible progressive support while maximizing structural integrity. Different arrangements of air cylinders and static or dynamic performance thereof, either non-powered or powered, permit different embodiments to be created using the same modular assembly approach.Type: GrantFiled: November 13, 1998Date of Patent: May 1, 2001Assignee: Span-America Medical Systems, Inc.Inventors: Edmund K. Maier, Richard W. Raburn, Mark D. Chastain
-
Patent number: 6036271Abstract: A seating system is designed for self-adjusting pressure relief for use with wheelchairs and other generally confined seating arrangements. One or more support chambers filled with resilient foam and a fluid such as air are arranged on an upper support surface. A self-adjusting reservoir is provided and arranged in fluid communication with the chamber. A constant force spring cooperates with a pivoting plate arrangement and acts on the reservoir so as to balance fluid pressure between the reservoir and the support chamber with a patient received thereon. In some embodiments, three fluid/resilient foam chambers may be provided for independent operation with three respective adjustable reservoirs. In other embodiments, fluid filled chambers may be operatively associated with respective reservoirs and pivoting actuation plates specially adapted to fit below a wheelchair seat without interfering with the wheelchair support structure, or specially adapted to be carried in a pack on the wheelchair seat back.Type: GrantFiled: November 14, 1995Date of Patent: March 14, 2000Assignee: Span-America Medical Systems, Inc.Inventors: John W. Wilkinson, Richard W. Raburn
-
Patent number: 5797155Abstract: A seating system is designed for self-adjusting pressure relief for use with wheelchairs and other generally confined seating arrangements. One or more support chambers filled with resilient foam and a fluid such as air are arranged on an upper support surface. Respective self-adjusting reservoirs are provided and arranged in fluid communication (such as through plastic tubing) with various of the chambers. As elastic band or similar is placed surrounding each respective reservoir, to compensate for, and reach equilibrium with, air pressure differences caused therein by the amount of force or loading received on the corresponding respective support chamber. The physical placement of the reservoir arrangements may be accommodated within an enclosing cover, so that an integrally formed self-contained wheelchair cushion or similar is provided with self-adjusting features, operative in respective zones of the support surface.Type: GrantFiled: June 6, 1997Date of Patent: August 25, 1998Assignee: Span-America Medical Systems, Inc.Inventors: Edmund K. Maier, Richard W. Raburn
-
Patent number: D388995Type: GrantFiled: January 24, 1994Date of Patent: January 13, 1998Assignee: Span-America Medical Systems, Inc.Inventors: Thomas S. Hargest, Richard W. Raburn
-
Patent number: D390404Type: GrantFiled: December 13, 1993Date of Patent: February 10, 1998Assignee: Span-America Medical Systems, Inc.Inventors: Thomas S. Hargest, Richard W. Raburn
-
Patent number: D394578Type: GrantFiled: June 23, 1992Date of Patent: May 26, 1998Assignee: Span-America Medical Systems, Inc.Inventor: Richard W. Raburn