公开(公告)号：US07131154B2

公开(公告)日：2006-11-07

申请号：US11361140

申请日：2006-02-23

Applicant: David T. Davis ,  Robert Novack

Inventor： David T. Davis ,  Robert Novack

IPC: A47B7/02

CPC classification number: A61G5/006 ,  A61G5/1075 ,  A61G7/005 ,  A61G2203/74

Abstract: A convertible wheeled chair is easily changed by an attendant into a gurney of the same height as a patient bed. During the process of transferring a patient from an upright position to a reclining position, convertible wheeled chair shifts the center of gravity of the patient rearwardly, and therefore does not give the patient a sensation of sliding from the chair.

公开(公告)号：US06898809B2

公开(公告)日：2005-05-31

申请号：US10638450

申请日：2003-08-11

Applicant: David T. Davis

Inventor： David T. Davis

IPC: A47C27/08 ,  A61G7/08

CPC classification number: A61G7/1026 ,  A61G7/05769 ,  A61G7/1021 ,  A61G7/1028 ,  A61G2200/32

Abstract: A transfer mattress is provided including a top sheet having a width, a length, and longitudinally oriented peripheral edges and a bottom sheet having the same width, the same length, longitudinally oriented peripheral edges and a plurality of perforations. The longitudinally oriented peripheral edges of the top and bottom sheets are sealingly fastened to one another often by heat sealing. A plurality of baffles, each having a width and a length, are attached to an inner surface of the top sheet and an inner surface of the bottom sheet so as to be transversely oriented between the top sheet and the bottom. The baffles along with the widths of the top and bottom sheets define a radially-outwardly curved perimeter wall that is disposed between an edge of the baffles and the sealed peripheral edges of the top and bottom sheets. The radially-outwardly curved perimeter wall has a width y that is determined by the following relationship: d ⁢   ⁢ π - x 2 ≤ y where d comprises a height of the longitudinally extensive pontoon and x comprises the width of the baffles.

Abstract translation: 提供了一种转印床垫，其包括具有宽度，长度和纵向定向的周边边缘的顶片，以及具有相同宽度，相同长度，纵向定向的周边边缘和多个穿孔的底片。 顶部和底部片材的纵向定向的周边边缘经常通过热封密封地彼此紧固。 每个具有宽度和长度的多个挡板附接到顶片的内表面和底片的内表面，以便在顶片和底部之间横向定向。 挡板以及顶部和底部片材的宽度限定了径向向外弯曲的周边壁，其设置在挡板的边缘和顶部和底部片材的密封的周边边缘之间。 径向向外弯曲的周边壁具有由以下关系确定的宽度y：