|Publication number||US3778851 A|
|Publication date||Dec 18, 1973|
|Filing date||Feb 24, 1972|
|Priority date||Mar 2, 1971|
|Also published as||CA956391A, CA956391A1, DE2210095A1, DE2210095B2|
|Publication number||US 3778851 A, US 3778851A, US-A-3778851, US3778851 A, US3778851A|
|Original Assignee||Haworth Air Conditioning Ltd|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (4), Referenced by (146), Classifications (12), Legal Events (2)|
|External Links: USPTO, USPTO Assignment, Espacenet|
United States Patent [191  3,778,851
Howorth Dec. 18, 1973 1 MATTRESS 3,644,950 2/1972 Lindsay, Jr. 5/348 [751 Inventor: Frederick Hugh i M 512323232 51323 $113552;;11i::::...............::::' i3
Chorley, Lancashire, England  Assignee: Haworth Air Conditioning Limited,
Bolton, Lancashire, England Filed: Feb. 24, 1972 Appl. No.: 228,924
Foreign Application Priority Data Mar. 2, 1971 Great Britain 5,838/71 US. Cl 5/347, 5/91, 297/453,
- 297/DIG. 3 Int. Cl A47c 27/08, A47c 27/18 Field of Search..... 5/347-350; 297/453, DIG. 3
References Cited UNITED STATES PATENTS 4/1972 Lapidus 5/347 Primary ExaminerCasmir A. Nunberg Attorney-Kenwood Ross et al.
 ABSTRACT A mattress, for use in treating a patient who has undergone extensive surgery or who has been severely burned, comprises an upper panel a lower panel and means for supplying air to the space between said panels, said lower panel being of air-impermeable material and at least a part of said upper panel being perforate to allow conditioned air to issue therefrom to impinge on and pass around said patient to substantially isolate said patient from ambient air and to reduce strain on his heart and promote healing.
5 Claims, 2 Drawing Figures MATTRESS This invention relates to a mattress, particularly but.
not exclusively, for use in the treatment and resuscitation of patients in hospital, or at home.
In order to resuscitate a patient after extensive surgery it is desirable that the body be enclosed in a microclimate, that is an environment containing conditioned air. This air may be bacteria-free and have its temperature and humidity controlled to prevent excessive metabolisation and remove strain from the patients heart, or alternatively, accelerate healing of, for instance burns.
It is an object of the present invention to provide a mattress whereon a patient, suffering, for instance, from shock, hypothermia or burns, can be supported and his body, which may be covered by a sheet, exposed to a microclimate of conditioned air to encourage resuscitation, which is relatively cheap to manufacture and which does not require a very large air supply. It is desirable that free flow of this air is not hindered or stopped by compression of the mattress by the weight of the patient supported thereby.
Accordingly the invention provides a mattress comprising a lower panel of air-impermeable material, an upper panel and means for supplying air to the space between the panels, the upper panel having at least part of its area perforate and provided with apertures whence conditioned air from the said space can issue and so impinge on and pass around a patient lying on the mattress.
The upper panel can be of air permeable material, and thus be effectively perforate over its entire surface or can be of an air impermeable material and have a central area thereof provided with apertures to render it air permeable.
By conditioned air is meant air which may be bacteria-free and of a predetermined temperature and humidity.
Preferably the panels are generally rectangular and attached to each other along lines parallel to the longitudinal edges of the panels so as to divide up the interior of the mattress into a plurality of inter-connected ribs.
Advantageously, the ribs comprise two pairs of side ribs and one or two end ribs, disposed beneath the imperforate peripheral border of the top panel, and a plurality of longitudinally extending central ribs disposed beneath the central area of the top panel.
Conveniently, and to prevent the weight of a patient I from collapsing any ofthe central ribs completely, each central rib has a spine of resilient material therein. Each such spine can extend centrally of each central rib and so divide the rib into two air supply channels along which air can pass even when the spine is compressed by the weight of a patient.
The supply means can comprise a header manifold, disposed parallel to but outside one end rib, or inside an end rib, and connected to a supply of conditioned air, and two supply tubes, connected to the manifold and one extending inside one of each pair of side ribs of the mattress. When the manifold is disposed outside the mattress a slot is provided at each end of the said one end rib to allow easy entry of the tubes. Each tube has its end remote from the header open, if a second end rib is provided, for supplying air to the other end rib, and an aperture adjacent its manifold end for supplying air to the one end rib.
Each tube is conveniently of foamed plastics material and extends along an outer one of the respective pair of side ribs. Each inner side rib can accommodate a resilient foam plastics cushioning tube.
The side ribs are advantageously deeper than the central ribs so that a recess is defined thereby beneath the central ribs, this recess accommodating a resilient foam plastics material block. The whole mattress can comprise an outer cover of air permeable textile material such as cambric.
The invention will be described further, by way of example, with reference to the accompanying drawings, wherein FIG. 1 is a perspective view, from above, of a preferred embodiment of mattress conforming to the invention; and
FIG. 2 is a cross-section, on an enlarged scale, taken on the line II-II of FIG. 1.
A preferred embodiment of mattress 9 conforming to the invention comprises upper and lower generally rectangular panels 10 and 11 of flexible synthetic plastics material. The panels are attached to, around their peripheries, for example by being integral or by being welded or sewn. The panels 10 and 11 are attached together by a plurality of longitudinally extending parallel seams, 12, each of the seams 12 extending from a position near to but spaced apart from one end of the mattress 9 to a position near to but spaced from the other end of the mattress 9. It will thus be appreciated that the seams l2 divide the mattress 10 into two pairs of longitudinally extending side ribs 13, 14 and 15, 16 and a plurality of longitudinally extending central ribs 17. The panel has an end rib l8 and its other end 19 is generally flat. That peripheral portion of the upper panel 10 which is above end rib l8, and part 19 and side ribs 13, l4, 15, 16 is imperforate, as is the entire lower panel 11, but a central area 20 of the upper panel 10 above the central ribs 17 is provided with a plurality of apertures 21 for a purpose which will be described later.
The end portion 19 and the other end portion adjacent are provided with strips 26 of hook and pile material secured thereto to facilitate attachment of the mattress 9 to a support, such as a bed, having complementary strips.
Centrally and longitudinally of each central rib 17 extends a spine 22 of foamed plastics material, each spine 22 being of thickness equal to about that thickness which the central ribs 17 would assume if the mattress 9 was inflated.
Supply means of the mattress comprises a header manifold (not shown) of length equal to about the width of the mattress l0 and disposed inside end rib 18. An end portion 23 of the manifold protrudes from one end of end rib 18. A pair of supply tubes 24, 25 of resilient foam plastics material, extend at right angles from the manifold and are disposed inside side ribs 13 and 16. Resilient foam plastics material cushioning tubes 27, 28 extend along side ribs 14 and 15.
The side ribs l3, l4, l5, 16 are deeper than the ribs 17 and a recess is thus defined beneath ribs 17 which can accommodate a block 33 of resilient foamed plastics material as an extra support for a patient on the mattress.
The tubes 24, 25 have their open free ends disposed adjacent end portion 19 of the mattress, for supplying air thereto, and has an aperture close to but spaced from its manifold end for supplying air to the one end rib. The manifold is, in use, connected to a supply of conditioned air, that is air which has its temperature and humidity controlled and which may be bacteria free.
When a patient is supported by the mattress 9 and the supply of conditioned air switched on, air issues from the apertures 21 in the ribs 17 and ensures a plentiful supply of air to the patients body. Although the weight of the patient may tend to compress the ribs 17 the spines 22 of foamed plastics material ensure, even when they are fully compressed, that air channels 29 exist on each side of the spines 22 so that air can still reach the patient. The supply of air required is about 50 cubic feet of air per minute.
In order that the mattress 9 is not contaminated by the patient the mattress 9 is surrounded by an airpermeable mattress cover 30. This cover 30 is in the form of a rectangular bag, an upper surface 31 of which is made from fine mesh so as to be readily permeable to air issuing from the apertures 21 in the mattress 10, and the lower surface 32 which is of a less permeable woven textile material. The cover 30 protects the mattress 9 against contamination by the patient but still allows air from the mattress 9 to contact and flow around his body.
The invention is not limited to the precise details of the foregoing description and variations can be made thereto within the scope of the following claims. For example the configuration of the ribs need not be as de scribed and can be varied as desired into any practical arrangement. The mattress need not comprise ribs but could have a plurality of interconnected cells or pockets. The mattress can be made from any air-impervious material such as close-woven textile material or plastic.
As an alternative the upper panel can be made from air-permeable material, for example a textile material and thus be effectively perforate over its entire area.
The supply means need not be as described and the manifold can be disposed outside and parallel to rib 18, a pair of slits in rib 18 allowing tubes 24, 25 to enter the side ribs 13, 16. The supply means can comprise a plurality of air supply tubes connecting with various points on the periphery or underside of the mattress. The seams 12 can have gaps therein to allow air to pass more easily from tubes 24, 25 to ribs 17.
The spines need not be continuous and each can comprise a plurality of discrete portions of material spaced apart along each rib. Many other variations are, of course, possible.
1. A mattress comprising: a block of resilient material for supporting a patient and on top of the block aeration means comprising a lower sheet and an upper sheet attached together to define chambers containing pieces of resilient foamed plastics material, the lower sheet being air impermeable and the upper sheet being air permeable, and air supply means for supplying conditioned air to the chambers to issue from the top sheet to impinge on and pass around a patient lying on the mattress.
2. A mattress as claimed in claim 1, wherein the panels are attached to each other by seams dividing the aeration means into a plurality of interconnected ribs, each rib having a spine of resilient plastics material extending therealong, each spine being narrower than the rib in which it is disposed.
3. A mattress as claimed in claim 2, wherein the aeration means has side ribs which are larger than the aforementioned ribs and which contain air supply tubes and serve to locate the aeration means on the block.
4. A mattress as claimed in claim 2, wherein the seams are discontinuous to allow air to flow from rib to rib.
5. A mattress as claimed in claim 1, in combination with a cover in the form of a bag having an air permeable upper surface which may protect the mattress from contamination by a patient but still allow air from the mattress to reach the patient.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US2623574 *||Dec 27, 1950||Dec 30, 1952||Damsch Herbert Otto Er Wilhelm||Air mattress|
|US3354476 *||Jun 15, 1965||Nov 28, 1967||Nat Res Dev||Apparatus for supporting bodies|
|US3644950 *||Aug 1, 1969||Feb 29, 1972||Milton Roy Co||Patient support system|
|US3653083 *||May 11, 1970||Apr 4, 1972||Roy Lapidus||Bed pad|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3881477 *||Aug 7, 1973||May 6, 1975||Nichols Henry E||Fluid discharge appliance for maintaining a sterile enclosure|
|US4057861 *||Jun 17, 1976||Nov 15, 1977||Howorth Air Engineering Limited||Mattress|
|US4579344 *||Nov 9, 1984||Apr 1, 1986||Dennis Meggs||Impact absorption pads for goals|
|US4729598 *||Mar 20, 1987||Mar 8, 1988||Hess Jack H||Patient chair system|
|US4759543 *||Oct 27, 1986||Jul 26, 1988||Feldman Susan M||Passive exercise cushion|
|US4896389 *||Jun 10, 1988||Jan 30, 1990||S.S.I. Medical Services Of Canada Inc.||Inflatable air mattress|
|US4984316 *||Dec 19, 1989||Jan 15, 1991||Simpson Stuart M||Bed warmer|
|US5022110 *||Apr 17, 1989||Jun 11, 1991||Kinetic Concepts, Inc.||Low air loss mattress|
|US5249318 *||Jun 5, 1992||Oct 5, 1993||Loadsman Gerald H||Air support cushion|
|US5251347 *||Jan 3, 1992||Oct 12, 1993||Stryker Corporation||Bed having patient warming apparatus|
|US5403065 *||Aug 8, 1994||Apr 4, 1995||F.I.M.A.C. Fabbrica Italiana Macchine Aria Compressa Spa||Bioconditioning device for objects with surfaces susceptible of making contact with body parts|
|US5473783 *||Apr 4, 1994||Dec 12, 1995||Allen; Randall W.||Air percolating pad|
|US5611772 *||Apr 12, 1995||Mar 18, 1997||Kabushiki Kaisha Fuji Iryoki||Air massage device|
|US5722596 *||Sep 21, 1995||Mar 3, 1998||Dome; Gregory A.||Mist-emitting lounge chair|
|US5787534 *||Jun 7, 1995||Aug 4, 1998||Hargest; Thomas S.||Sudden infant death syndrome prevention apparatus and method and patient surface|
|US5906019 *||Oct 31, 1995||May 25, 1999||Mccarthy; Kevin||Air mattress with oval beams|
|US5963997 *||Mar 24, 1997||Oct 12, 1999||Hagopian; Mark||Low air loss patient support system providing active feedback pressure sensing and correction capabilities for use as a bed mattress and a wheelchair seating system|
|US6073290 *||Nov 12, 1997||Jun 13, 2000||Foamex L.P.||Air mattress and method of making same|
|US6102936 *||Jul 21, 1998||Aug 15, 2000||Augustine Medical, Inc.||Inflatable thermal pad with drainage|
|US6277144||Oct 7, 1998||Aug 21, 2001||Respiratory Support Products, Inc.||Thermal conditioning apparatus|
|US6447865||Feb 25, 1999||Sep 10, 2002||Gaymar Industries, Inc.||Gelatinous composite article and construction|
|US6487739 *||Jun 1, 2000||Dec 3, 2002||Crown Therapeutics, Inc.||Moisture drying mattress with separate zone controls|
|US6511501||May 2, 2000||Jan 28, 2003||Augustine Medical, Inc.||Inflatable thermal pad with drainage|
|US6606754||Apr 3, 2000||Aug 19, 2003||Gaymar Industries, Inc.||Supported hypo/hyperthermia pad|
|US6629724||Jan 5, 2001||Oct 7, 2003||Johnson Controls Technology Company||Ventilated seat|
|US6684437 *||Jul 31, 2002||Feb 3, 2004||J. Frank Koenig||Sleeping pad, bedding and bumpers to improve respiratory efficiency and environmental temperature of an infant and reduce the risks of sudden infant death syndrome (SIDS) and asphyxiation|
|US6687937||May 16, 2002||Feb 10, 2004||Crown Therapeutics, Inc.||Moisture drying mattress with separate zone controls|
|US6739009 *||Nov 26, 2002||May 25, 2004||Del Drago Marcantonio||Supporting device, notably mattress, mattress support or for a seat|
|US6767621||Aug 7, 2002||Jul 27, 2004||Gaymar Industries, Inc.||Gelatinous composite article and construction|
|US6782574 *||Jul 18, 2001||Aug 31, 2004||Span-America Medical Systems, Inc.||Air-powered low interface pressure support surface|
|US6786541||Jan 5, 2001||Sep 7, 2004||Johnson Controls Technology Company||Air distribution system for ventilated seat|
|US6789283 *||Jun 4, 2002||Sep 14, 2004||Shahzad Pirzada||Fluid filled support with a portable pressure adjusting device|
|US6843873||Jun 12, 2002||Jan 18, 2005||Gaymar Industries, Inc.||Method of making a gelatinous composite|
|US6857697||Jun 17, 2003||Feb 22, 2005||W.E.T. Automotive Systems Ag||Automotive vehicle seating comfort system|
|US6871365||May 14, 2003||Mar 29, 2005||Gaymar Industries, Inc.||Supported hypo/hyperthermia pad|
|US6893086||May 9, 2003||May 17, 2005||W.E.T. Automotive Systems Ltd.||Automotive vehicle seat insert|
|US7040710||Jan 5, 2001||May 9, 2006||Johnson Controls Technology Company||Ventilated seat|
|US7052091||Jan 26, 2005||May 30, 2006||W.E.T. Automotive Systems Ltd.||Automotive vehicle seat insert|
|US7060044 *||Jun 29, 2002||Jun 13, 2006||Chi Fang Keng||Massage device for attaching onto users|
|US7083227||Mar 10, 2005||Aug 1, 2006||W.E.T. Automotive Systems, Ag||Automotive vehicle seating comfort system|
|US7108319||Jul 27, 2002||Sep 19, 2006||Johnson Controls Gmbh||Air conditioned cushion part for a vehicle seat|
|US7120951 *||Jul 19, 2002||Oct 17, 2006||Arizant Healthcare Inc.||System for warming lower extremities of supine persons|
|US7131689||Jul 21, 2005||Nov 7, 2006||W.E.T. Automotive Systems, Ag||Automotive vehicle seating comfort system|
|US7191480||Mar 5, 2004||Mar 20, 2007||Hill-Rom Services, Inc.||Mattress or cushion structure|
|US7197801||Feb 17, 2006||Apr 3, 2007||W.E.T. Automotive Systems Ltd.||Automotive vehicle seat insert|
|US7201441||Dec 17, 2003||Apr 10, 2007||W.E.T. Automotive Systems, Ag||Air conditioned seat and air conditioning apparatus for a ventilated seat|
|US7213876||Nov 28, 2005||May 8, 2007||W.E.T. Automotive System Ag||Vehicle seat and associated air conditioning apparatus|
|US7229129 *||Oct 26, 2005||Jun 12, 2007||Johnson Controls Technology Company||Ventilated seat|
|US7261371||Dec 10, 2002||Aug 28, 2007||Johnson Controls Gmbh||Ventilation system for an upholstery part|
|US7274007||Sep 21, 2004||Sep 25, 2007||W.E.T. Automotive Systems Ltd.||Control system for operating automotive vehicle components|
|US7296315||Aug 30, 2004||Nov 20, 2007||Span-America Medical Systems, Inc.||Air-powered low interface pressure support surface|
|US7338117||Apr 12, 2004||Mar 4, 2008||W.E.T. Automotive System, Ltd.||Ventilated seat|
|US7356912||Apr 12, 2004||Apr 15, 2008||W.E.T. Automotive Systems, Ltd.||Method for ventilating a seat|
|US7370911||Oct 15, 2004||May 13, 2008||W.E.T. Automotive Systems, Ag||Automotive vehicle seat insert|
|US7425034||Oct 15, 2004||Sep 16, 2008||W.E.T. Automotive Systems Ag||Automotive vehicle seat having a comfort system|
|US7461892||Dec 1, 2004||Dec 9, 2008||W.E.T. Automotive Systems, A.C.||Valve layer for a seat|
|US7467823||Apr 7, 2004||Dec 23, 2008||Johnson Controls Gmbh||Vehicle seat|
|US7475938||Apr 6, 2007||Jan 13, 2009||W.E.T. Automotive Systems Ag||Air conditioned seat and air conditioning apparatus for a ventilated seat|
|US7478869||Aug 16, 2006||Jan 20, 2009||W.E.T. Automotive Systems, Ag||Automotive vehicle seat insert|
|US7506938||Aug 31, 2006||Mar 24, 2009||W.E.T. Automotive Systems, A.G.||Automotive vehicle seating comfort system|
|US7578552||Oct 31, 2007||Aug 25, 2009||W.E.T. Automotive Systems Ag||Automotive vehicle seat having a comfort system|
|US7588288||Apr 14, 2008||Sep 15, 2009||W.E.T. Automotive Systems Ag||Automotive vehicle seat insert|
|US7618089||Apr 18, 2006||Nov 17, 2009||W.E.T. Automotive Systems Ag||Air conditioning system for a seat|
|US7637573||Jan 17, 2007||Dec 29, 2009||W.E.T. Automotive Systems Ag||Automotive vehicle seating insert|
|US7735932||Jan 15, 2009||Jun 15, 2010||W.E.T. Automotive Systems Ag||Automotive vehicle seat insert|
|US7749261||Feb 27, 2006||Jul 6, 2010||Arizant Healthcare Inc.||Forced air warming unit|
|US7781704||Aug 21, 2007||Aug 24, 2010||W.E.T. Automotive Systems Ag||Control system for operating automotive vehicle components|
|US7918498||Nov 6, 2008||Apr 5, 2011||W.E.T. Automotive Systems Ag||Valve layer for a seat|
|US7971931||Aug 16, 2010||Jul 5, 2011||W.E.T. Automotive Systems Ag||Automotive vehicle seat insert|
|US7975335||May 8, 2007||Jul 12, 2011||Hill-Rom Services, Inc.||Pulmonary mattress|
|US7976572||Feb 9, 2007||Jul 12, 2011||Arizant Healthcare Inc.||Forced air warming unit|
|US8015972||Dec 30, 2006||Sep 13, 2011||Shahzad Pirzada||System, device and process for remotely controlling a medical device|
|US8151391||Mar 30, 2009||Apr 10, 2012||Jacobo Frias||Inflatable temperature control system|
|US8162391||Jun 29, 2011||Apr 24, 2012||W.E.T. Automotive Systems Ag||Automotive vehicle seat insert|
|US8177828||Jul 27, 2009||May 15, 2012||Arizant Healthcare Inc.||Underbody convective warming blanket constructions|
|US8235462||Mar 30, 2011||Aug 7, 2012||W.E.T. Automotive Systems, Ltd.||Valve layer for a seat|
|US8309892||Aug 23, 2010||Nov 13, 2012||W.E.T. Automotive System, Ltd||Control system for operating automotive vehicle components|
|US8328859||Jun 11, 2010||Dec 11, 2012||Arizant Healthcare Inc.||Forced air warming unit|
|US8360517||Mar 28, 2012||Jan 29, 2013||W.E.T. Automotive Systems, Ag.||Automotive vehicle seat insert|
|US8460354||Oct 15, 2010||Jun 11, 2013||Arizant Healthcare Inc.||Inflatable convective pad for surgery|
|US8470011||Jun 2, 2011||Jun 25, 2013||Arizant Healthcare Inc.||Forced air warming unit|
|US8470012||Sep 8, 2004||Jun 25, 2013||Arizant Healthcare Inc.||Inflatable convective pad for surgery|
|US8474074||Jul 8, 2011||Jul 2, 2013||Hill-Rom Services, Inc.||Pulmonary mattress|
|US8490226 *||Sep 18, 2009||Jul 23, 2013||Diacor, Inc.||Systems for patient transfer, devices for movement of a patient, and methods for transferring a patient for treatment|
|US8555440||Apr 30, 2008||Oct 15, 2013||Randall J. Lewis||Patient lifter with intra operative controlled temperature air delivery system|
|US8597339||Sep 30, 2010||Dec 3, 2013||Arizant Healthcare Inc.||Patient comfort apparatus and system|
|US8640279||Jun 26, 2013||Feb 4, 2014||Diacor, Inc.||Systems for patient transfer, devices for movement of a patient, and methods for transferring a patient|
|US8777320||Dec 21, 2009||Jul 15, 2014||W.E.T. Automotive Systems Ag||Ventilation system|
|US8789224 *||Nov 6, 2001||Jul 29, 2014||Tempur-Pedic Managemant, LLC||Therapeutic mattress assembly|
|US8882820||May 2, 2013||Nov 11, 2014||3M Innovative Properties Company||Inflatable convective pad for surgery|
|US8888573||Dec 3, 2008||Nov 18, 2014||W.E.T. Automotive Systems Ag||Seat conditioning module and method|
|US8910334||Dec 17, 2009||Dec 16, 2014||Stryker Corporation||Patient support|
|US9072598||Sep 5, 2014||Jul 7, 2015||3M Innovative Properties Company||Inflatable convective pad for surgery|
|US9073466 *||May 7, 2013||Jul 7, 2015||Toyota Boshoku Kabushiki Kaisha||Vehicle seat|
|US9085255||Mar 18, 2009||Jul 21, 2015||Gentherm Gmbh||Ventilation means|
|US9131781||Dec 27, 2012||Sep 15, 2015||Select Comfort Corporation||Distribution pad for a temperature control system|
|US9162769||Apr 5, 2011||Oct 20, 2015||Gentherm Gmbh||Occupancy sensor that measures electric current through a heating element|
|US9278183||Aug 8, 2011||Mar 8, 2016||Shahzad Pirzada||System, device and process for remotely controlling a medical device|
|US9283879||Nov 14, 2012||Mar 15, 2016||Gentherm Gmbh||Air conveyor|
|US9326889||May 22, 2015||May 3, 2016||3M Innovative Properties Company||Inflatable convective pad for surgery|
|US9329076||Mar 14, 2013||May 3, 2016||Hill-Rom Services, Inc.||Patient support systems and methods of use|
|US9345615||Sep 5, 2014||May 24, 2016||3M Innovative Properties Company||Inflatable convective pad for surgery|
|US9415712||Jun 11, 2014||Aug 16, 2016||Gentherm Gmbh||Ventilation system|
|US9433300||Feb 26, 2014||Sep 6, 2016||Hill-Rom Services, Inc.||Topper for a patient surface|
|US9434284||Nov 13, 2012||Sep 6, 2016||Gentherm Gmbh||Thermostat device|
|US9440567||Dec 14, 2012||Sep 13, 2016||Gentherm Gmbh||Automotive vehicle seat insert|
|US9448017||Dec 5, 2012||Sep 20, 2016||Gentherm Gmbh||Temperature control system for an electrochemical voltage source|
|US20020148046 *||Jun 4, 2002||Oct 17, 2002||Shahzad Pirzada||Fluid filled support with a portable pressure adjusting device|
|US20020151243 *||Jun 12, 2002||Oct 17, 2002||Flick Roland E.||Gelatinous composite article and construction|
|US20020178499 *||Jul 19, 2002||Dec 5, 2002||Augustine Scott Douglas||System for warming lower extremities of supine persons|
|US20020187332 *||Aug 7, 2002||Dec 12, 2002||Flick Roland E.||Gelatinous composite article and construction|
|US20040002669 *||Jun 29, 2002||Jan 1, 2004||Keng Chi Fang||Massage device for attaching onto users|
|US20040031103 *||Nov 6, 2001||Feb 19, 2004||Wyatt Charles C||Therapeutic mattress assembly|
|US20040168255 *||Mar 5, 2004||Sep 2, 2004||Hill-Rom Services, Inc.||Mattress or cushion structure|
|US20050022308 *||Aug 30, 2004||Feb 3, 2005||Totton Wanda J.||Air-powered low interface pressure support surface|
|US20060052851 *||Sep 8, 2004||Mar 9, 2006||Anderson Thomas P||Inflatable convective pad for surgery|
|US20060147320 *||Feb 27, 2006||Jul 6, 2006||Hansen Gary L||Forced air warming unit|
|US20060175097 *||Nov 30, 2005||Aug 10, 2006||Shazad Pirzada||Wireless weighing system for a bed|
|US20070033733 *||Aug 9, 2005||Feb 15, 2007||Lih-Wuu Jen||Mattress air-conditioning system|
|US20070209114 *||Mar 10, 2006||Sep 13, 2007||Young Chu||Sleeping bag with air pockets|
|US20070234481 *||May 31, 2007||Oct 11, 2007||Totton Wanda J||Air-powered low interface pressure support surface|
|US20070266499 *||May 8, 2007||Nov 22, 2007||Hill-Rom Services, Inc.||Pulmonary mattress|
|US20080195184 *||Feb 9, 2007||Aug 14, 2008||Arizant Healthcare Inc.||Forced air warming unit|
|US20090271923 *||Apr 30, 2008||Nov 5, 2009||Lewis Randall J||Patient lifter with intra operative controlled temperature air delivery system|
|US20100071127 *||Sep 18, 2009||Mar 25, 2010||Diacor, Inc.||Systems for patient transfer, devices for movement of a patient, and methods for transfering a patient for treatment|
|US20100071130 *||Mar 30, 2009||Mar 25, 2010||Jacobo Frias||Inflatable temperature control system|
|US20100146709 *||Dec 17, 2009||Jun 17, 2010||Stryker Corporation||Patient support|
|US20100256715 *||Jun 11, 2010||Oct 7, 2010||Arizant Healthcare Inc.||Forced air warming unit|
|US20110022134 *||Jul 27, 2009||Jan 27, 2011||Arizant Healthcare Inc.||Underbody convective warming blanket constructions|
|US20110022135 *||Sep 30, 2010||Jan 27, 2011||Arizant Healthcare Inc.||Patient comfort apparatus and system|
|US20110098794 *||Oct 15, 2010||Apr 28, 2011||Arizant Healthcare Inc.||Inflatable convective pad for surgery|
|US20110173758 *||Jun 22, 2009||Jul 21, 2011||Ricky Jay Fontaine||Inflatable mattress and method of operating same|
|US20130212806 *||Feb 21, 2013||Aug 22, 2013||Qfix Systems, Llc||Novel Air Bearing Device And Method For Transferring Patients|
|US20130300179 *||May 7, 2013||Nov 14, 2013||Toyota Boshoku Kabushiki Kaisha||Vehicle seat|
|US20150190273 *||Jan 9, 2014||Jul 9, 2015||Louis Causley Causley||Medical Device to Control Environmental Conditions for Surgical and Non-Surgical Wounds|
|EP0204765A1 *||Nov 21, 1985||Dec 17, 1986||Kcj Corp||Air flotation mattress.|
|EP0204765A4 *||Nov 21, 1985||Nov 23, 1987||Kcj Corp||Air flotation mattress.|
|EP1080705A2||Aug 10, 2000||Mar 7, 2001||Respiratory Support Products Inc||Thermal cover member for delivering fluid to a patient|
|EP2379040A2 *||Dec 17, 2009||Oct 26, 2011||Stryker Corporation||Patient support|
|EP2379040A4 *||Dec 17, 2009||Oct 29, 2014||Stryker Corp||Patient support|
|EP3111904A1 *||Aug 30, 2010||Jan 4, 2017||Gentherm Incorporated||Climate-controlled topper member for medical beds|
|WO1992002200A1 *||Jul 27, 1990||Feb 20, 1992||Therapeutic Environments, Inc.||Mattress assembly for the prevention and treatment of decubitus ulcers|
|WO1996039904A1 *||Nov 1, 1995||Dec 19, 1996||Hargest Thomas S||Sudden infant death syndrome prevention apparatus|
|WO2000004853A1 *||Jun 8, 1999||Feb 3, 2000||Augustine Medical, Inc.||Inflatable thermal pad with drainage|
|WO2001091617A1 *||May 31, 2001||Dec 6, 2001||Crown Therapeutics, Inc.||Moisture drying mattress with separate zone controls|
|WO2010078047A2||Dec 17, 2009||Jul 8, 2010||Stryker Corporation||Patient support|
|U.S. Classification||5/423, 5/714, 601/158, 297/DIG.300, 297/180.13, 5/709, 601/148|
|International Classification||A47C27/08, A61G7/057|
|Cooperative Classification||A61G7/057, Y10S297/03|
|Mar 23, 1990||AS||Assignment|
Owner name: HOWORTH AIRTECH LIMITED, VICTORIA WORKS,, ENGLAND
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:HOWORTH AIR ENGINEERING LIMITED;REEL/FRAME:005270/0633
Effective date: 19890925
|Mar 23, 1990||AS02||Assignment of assignor's interest|
Owner name: HOWORTH AIR ENGINEERING LIMITED
Owner name: HOWORTH AIRTECH LIMITED, VICTORIA WORKS, LORNE STR
Effective date: 19890925