It is sometimes necessary to physically restrain patients in order to prevent them from falling or from otherwise hurting themselves or others. Physical restraint may be recommended, for example, for patients having dementia or certain other neurological disorders. In the past, such patients were typically restrained with straps or vests. Such restraints, however, can be uncomfortable for the patient and unnecessarily restraining.
An alternative to using physical restraints involves the use of a bed enclosure that restricts egress from a bed. Bed enclosures can provide space for a patient to move his or her limbs freely but prevent unsupervised movement out of the bed. Thus, bed enclosures provide a more humane, safe, and less restrictive environment for a patient.
The present bed enclosure comprises a hospital bed, a mattress supported on the hospital bed, a tent frame attached to the hospital bed, and a tent attached to and supported by the frame. The tent provides a three-dimensional enclosure for restricting egress from the tent by a patient, and includes a mattress cover for enclosing the mattress. The tent further includes one or more removably attached windows which can be fully or partially detached in order to allow ingress into or egress from the tent by a patient or caregiver.
In a preferred embodiment, one or more tent walls are provided with safety panels for use when tent windows are open. A safety panel can be attached to either a tent wall at a point below a window of the tent wall or to a portion of the mattress cover below such tent wall, and is attached along the horizontal extent of the tent window. The safety panel is also reversibly attachable to material on the tent wall adjacent to the vertical sides of the tent window. Such reversible attachments extend from below the lower edge of the tent window to a point vertically above the lower edge of the tent window. The safety panel, which is preferably formed from a flexible material such as that used to form the tent, functions as an alternative to a side rail to prevent a patient from inadvertently falling out of the tent when the window of the tent is open.
A tent window of the present bed enclosure is preferably removably attached to the tent wall with a zipper, and can be unzipped along at least a lower edge of the window and along two vertical sides. The window can, in this case, be opened by placing the unzipped tent window material on the roof of the tent while the window remains attached to the tent wall along an upper edge. In this embodiment, the tent wall which comprises the window can preferably be completely unzipped in order to facilitate laundering of that portion of the wall, including the window. Alternatively, the tent window can be unzipped from all four sides for ease of washing. The tent windows are preferably made from a mesh material to allow air flow through the tent as well as to allow a patient inside the tent to be seen.
In another aspect, the present bed enclosure comprises a tent having a head end wall, a foot end wall, a right side wall, and a left side wall, each of which comprises a lower edge and two side edges. The side edges of each end wall are joined to at least a portion of one of the side edges of each of the side walls to form a four-sided enclosure. The bed enclosure further includes a mattress cover joined to the lower edge of each of the end walls and side walls which substantially completely covers an upper surface of the mattress. In this embodiment, the enclosure further includes connecting panels in order to allow articulation of the mattress cover while it is attached to the side walls and end walls of the enclosure. In particular, the enclosure comprises a right side connecting panel having a first side attached to a first joining portion of the right longitudinal side of the mattress cover from the head end to a point located distally of the head end, the mattress cover not being attached to the right side wall along this first joining portion; a second side attached to a second joining portion of a right side edge of a lower portion of the head end wall, the right side edge of the head end wall not being attached to the right side wall along this second joining portion; and a third side attached to the right side wall. The third side can be joined to the right side wall either at its lower edge or at a point above its lower edge. The enclosure further includes a left side connecting panel having a first side attached to a first joining portion of the left longitudinal side of the mattress cover from the head end to a point located distally of the head end, the mattress cover not being attached to the left side wall along this first joining portion; a second side attached to a second joining portion of a left side edge of a lower portion of the head end wall, the left side edge of the head end wall not being attached to the left side wall along the second joining portion; and a third side attached to the left side wall. The third side of the left side connecting panel can likewise be joined to the right side wall either at its lower edge or at a point above its lower edge.
These and other features, aspects and advantages of the present invention will become better understood with regard to the following description, appended claims, and accompanying figures where:
All dimensions specified in this disclosure are by way of example only and are not intended to be limiting. Further, the proportions shown in these Figures are not necessarily to scale. As will be understood by those with skill in the art with reference to this disclosure, the actual dimensions of any device or part of a device disclosed in this disclosure will be determined by their intended use.
Definitions
As used herein, the following terms and variations thereof have the meanings given below, unless a different meaning is clearly intended by the context in which such term is used.
“Horizontal” refers to an orientation approximately parallel to (i.e., not extending away from) a support surface on which the present bed, tent frame, and tent are supported.
“Hospital bed” refers to a bed of the type typically used in a medical care setting which preferably provides functions that facilitate caregiving or increase patient comfort, such as a mechanism for articulating one or more longitudinal ends of a mattress in order to raise the head and/or foot portions of the mattress, a mechanism for raising and lowering the height of the bed, and/or a means for moving the bed. A hospital bed functions as a mattress support for a mattress placed on the bed.
“Seam” refers to a point of connection between two panels of material. Seams are generally formed by connectors, such as zipper connectors or stitches, between different pieces of material. However, panels which are integrally formed, such as through molding, can comprise seams which separate panels only by changes in configuration of such molded material.
“Vertical” refers to an orientation extending toward or away from a support surface on which the present bed, tent frame, and tent are supported.
As used herein, the term “comprise” and variations of the term, such as “comprising” and “comprises,” are not intended to exclude other additives, components, integers or steps. The terms “a,” “an,” and “the” and similar referents used herein are to be construed to cover both the singular and the plural unless their usage in context indicates otherwise.
Bed
Any of a number of hospital beds known to the art can be used together with the present tent frame 100 and tent 200. A hospital bed preferably comprises a rigid generally rectangular bed frame 20. The bed frame 20 can be formed, for example, from two longitudinal support members 22 and 24 connected at each end by cross support members 26 and 28 to form a generally rectangular support area. While most bed frames 20 with which bed enclosures are typically used form a generally rectangular shape, it is not necessary that the bed frame 20 of the bed enclosure form a rectangular shape. Cross supports extending between the longitudinal support members 22 and 24, such as cross support 21, can be included in the frame 20 in order to strengthen it.
The bed frame 20 can be supported above a support surface 60, such as a floor of a hospital, acute care facility, long term care facility, home, or other location housing a patient in need of the present bed enclosure, in any way known to the art. Preferably, the bed frame 20 is supported on wheels 37 so that the bed 10, tent frame 100, and tent 200 can be easily moved on such a support surface 60. In the embodiment shown in
The connecting members 38 are themselves connected by a cross support member 32, and the lower vertical supports 33 are connected at their lower end to a further cross support member 34, which supports the lower vertical supports 33 and connects them to casters 35 located at the ends of the cross support member 34. The cross support member 34 in this way extends the wheel base of the bed 10 and provides greater stability to the tent frame 100 and tent 200. The caster 35 is attached to a wheel 37, which contacts the support surface 60.
The present beds 10 preferably comprise a locking mechanism for securing a bed 10 in a desired location once it has been situated. In one embodiment, one or more of the casters 35 comprises a locking mechanism which can be engaged and thereby prevent the wheels 37 from moving. In an alternative embodiment, shown in
When it is desired to move a bed 10 of this embodiment, the mechanism for adjusting the vertical height of the bed frame 20 is actuated so that the upper vertical support 31 is raised sufficiently so that the distal end 27 of the transfer brake 25 becomes raised above the floor or other support surface 60 on which the present bed 10 is placed. When it is desired to prevent or inhibit the movement of the present bed 10 with the transfer brake 25, the height adjustment mechanism (preferably operated by a motor) is actuated so as to lower the vertical height of the upper vertical support 31 and of the transfer brake 25 until the distal end 27 of the transfer brake 25 contacts the support surface 60. If transfer brakes 25 are located on only one longitudinal end of the bed 10, then only that end of the bed 10 is prevented from moving, which can aid in preventing tipping of the tent frame 100 and tent 200 by an occupant. If both longitudinal ends of the bed 10 include transfer brakes 25 as illustrated in
The bed 10 also preferably includes a deck or mattress support 40 which articulates in a vertical direction at one or more points along the length of the bed frame 20 in order to allow, for example, a head portion of the mattress 50 to be raised. Various mechanisms known to the art for accomplishing such articulation can be used with the present bed 10.
The components of the bed frame 20 can be made from aluminum, steel, or other suitably rigid materials. In a preferred embodiment, the bed frame components are aluminum for lightweight construction, though casters 35 are typically made from steel.
Tent Frame
The tent frame 100 of the present bed enclosure provides structural support for the tent 200, which comprises opposed side walls and opposed end walls to form a three-dimensional enclosure for a patient. The tent frame 100 preferably is configured to provide support for a tent roof 215 and roughly square or rectangular tent walls 210 (e.g., tent walls 212, 214, 216 and 218). Alternatively, the tent frame 100 can be like that disclosed in U.S. Pat. No. 7,047,991, which comprises a single longitudinal upper support bar. In this embodiment the upper edges of the opposed side walls meet or are otherwise connected and secured to the upper support bar.
As shown in
In a preferred embodiment, the upper longitudinal supports 112 and 114 are connected to the cross support members and vertical support members by means of flanges 105 extending from the ends of the upper longitudinal supports 112 and 114. As shown in
At the lower vertical extent of each of the vertical support members 122, 124, 126 and 128, these support members 120 are connected to the bed frame 20. In some embodiments, the vertical support members 120 can be directly attached at their lower ends to the bed frame 20, such as by means of flanges as described above. However, in the embodiment shown in
The tent frame's components can be constructed of any suitably rigid material, such as metal tubing with a square cross section. A preferred material is extruded aluminum, though other materials such as steel can also be used.
Tent
The tent 200 of the present bed enclosure, as previously described, is supported by the tent frame 100 over the bed frame 20. As shown in
One or more of the tent walls 210 comprises a removably attached window 220 which can be opened (as shown in
The tent 200 can be made of any suitable material, such as vinyl of varying thicknesses, canvas, laminated materials, cotton duck, polyester, heavy denier nylon, propylene, nylon mesh or cotton netting. Tent materials are preferably flexible and lightweight, and in addition are preferably flame retardant, to reduce the risk of fire injury to a patient as well as to meet applicable laws and regulations. Materials used for the tent walls 210 may be opaque, but materials for the windows 220 are preferably see-through or transparent, and more preferably allow the passage of air through them (as with a mesh material).
In embodiments of the tent as shown, e.g., in
At least one of the tent windows 220 should comprise a reversible connector, such as a zipper, so that the window 220 can be removably attached at least in part to the tent wall 210 comprising such window. A tent window 220 can be completely removable from the tent wall comprising such window, in order to facilitate cleaning of the window, for example. However, in other embodiments the window 220 can be attached to the tent wall 210 along an upper vertical edge 221 with a connector that is not reversible, such as stitching, in which case the window can be opened by lifting the window material and placing it on the tent roof 215, as shown in
As shown in
The mattress 50 of the present bed enclosure is enclosed by a mattress cover 250 to which the lower edges of tent walls 212, 214, 216 and 218 are attached. The top and sides of the mattress 50 are preferably substantially completely covered by the mattress cover 250, i.e. such that an occupant of the bed enclosure cannot extend a head or limb through any opening in the mattress cover and thereby gain access to the mattress 50 or the underside of the mattress cover 250, which could pose a risk of entrapment to the occupant. If the mattress cover does not completely cover the mattress 50, the side walls of the mattress cover should be secured to the mattress 50, such as with straps or panels extending between the side walls of the mattress cover 250 under the lower surface of the mattress 50. More preferably, the mattress 50 is completely enclosed by material forming the mattress cover 250. The mattress cover 250 is also preferably reversibly secured to the bed frame with a strap 330.
The mattress cover 250 should be joined to the lower edge of each of the tent walls 212, 214, 216 and 218 in order to form the present bed enclosure, either directly or via intervening panels, such as the connecting panels 260 (described below). The tent walls 210 of the tent 200 are preferably removably attached to the mattress cover 250, such as with one or more zipper connectors. As shown in
Connecting Panels
In a preferred embodiment, one or more ends of the mattress support 40 articulate vertically in order to allow at least one end of the mattress 50, e.g. a head end, to be raised (as shown, e.g., in
The connecting panels 260 are preferably made from a flexible mesh material or other material allowing the passage of air therethrough, so that an occupant of the bed enclosure who becomes entangled in such material or who becomes pinned to it does not suffocate, although a minor portion of the connecting panels 260, such as portion 265 (see
In one embodiment, shown in
In a similar manner, the connecting panel 264 can is attached to the lower edge of side wall 212, the lower portion of the corresponding side edge of tent wall 218, and to the mattress cover 250. In order to allow articulation of the mattress cover 250, the connecting panels 260 are made sufficiently large, i.e. with sufficiently long sides, to allow the head end portion 255 of the mattress cover 250 to be raised to a predetermined extent. Preferably, the connecting panels 262 and 264 and the lower portion 229 of tent wall 218 can form taut surfaces when the mattress 50 and mattress cover 250 are fully raised. The windows 225 and 227 of the lower portion 229 preferably comprises a mesh material such as the material used for the connecting panels 260.
By attaching the mattress cover 250 to the end wall 218 and side walls 212 and 214 in this manner, not only is vertical articulation of the mattress 50 and mattress cover 250 enabled, but a patient in the enclosure is also protected from becoming entrapped underneath the mattress 50, the mattress cover 250, or the support 40. As best seen in
In a further preferred embodiment, shown in
One of the advantages of this alternative embodiment, apart from the use of smaller connecting panels 260, is that pocket formed between the connecting panel and a side wall when the mattress cover 250 is articulated upward is smaller, leaving less space that an occupant can potentially become lodged between. This embodiment thus further reduces any risk of entrapment within the present bed enclosure.
Safety Panel
In a preferred embodiment, best seen in
The safety panel 300 is adapted to be reversibly attached to a tent wall 210 (and also, preferably, to a portion of the mattress cover 250 if the edge 310 of the safety panel 300 is attached to the mattress cover 250) along two vertical edges 312 and 314. In the embodiment shown in
The safety panel 300 further comprises an upper edge 316 extending between the vertical edges 312 and 314 so that the upper edge 316 is above the lower vertical extent of the tent window with which it is associated. As shown in
The present safety panel 300 can be further secured at one or more longitudinal end to a tent wall 210 with a fastener 315. In the embodiment illustrated in
When the safety panel 300 is secured to tent wall 212 as shown in
A further advantage of the present safety panels 300 is that when the vertical sides 312 and 314 are not secured to the tent wall 210, the upper edge 316 of the safety panel 300 will lie below the lower edge 310 of the safety panel 300, and the safety panel 300 can in this case serve a decorative purpose, in the same manner as a bed skirt, by covering portions of the mattress cover 250 and/or the bed frame 20. The safety panel 300 can alternatively be folded or rolled up and secured to the tent wall 210 with which it is associated with straps, or can be stored in a pouch or pocket. In a further alternative, the safety panel 300 can comprise a reversible attachment along the lower edge 310 and be removable, e.g. for laundering. In addition, either or both of the sides 320 of the safety panel 300 can include decorative patterns in order to increase the aesthetic qualities of the present bed enclosure.
Although the present invention has been discussed in considerable detail with reference to certain preferred embodiments, other embodiments are possible. The steps disclosed for the present methods are not intended to be limiting nor are they intended to indicate that each step depicted is essential to the method, but instead are exemplary steps only. Therefore, the scope of the appended claims should not be limited to the description of preferred embodiments contained in this disclosure. All references cited herein are incorporated by reference to their entirety.
The present Application claims the benefit of priority from U.S. Provisional Patent Application No. 60/804,160 entitled “Bed Enclosure,” which was filed on Jun. 7, 2006, the contents of which are incorporated in this disclosure by reference in their entirety.
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