|Publication number||US3778052 A|
|Publication date||Dec 11, 1973|
|Filing date||Jun 17, 1971|
|Priority date||Jun 17, 1971|
|Publication number||US 3778052 A, US 3778052A, US-A-3778052, US3778052 A, US3778052A|
|Inventors||P Andow, D Guillen, R Diaz|
|Original Assignee||R Diaz, P Andow, D Guillen|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (5), Referenced by (95), Classifications (16)|
|External Links: USPTO, USPTO Assignment, Espacenet|
nited States Patent [1 1 Andow et al.
1 Dec. 11, 1973 1 WALKER WlTl-l ADJUSTABLE CRUTCH HEAD SUPPORTS  Inventors: Paul Andow; David Guillen; Raul G. Diaz, all of 215 Caples Building, El Paso, Tex. 79901  Filed: June 17, 1971  Appl. No.: 153,949
 US. Cl 272/70.4, 135/45 A, 297/5  Int. Cl A6lh 3/04  Field of Search 272/703, 70.4; 297/5, 6; 135/45 A  References Cited UNlTED STATES PATENTS' 2,719,568 10/1955 Webb 272/703 116,073 6/1871 Maschmann.. 297/6 X 2,459,066 1/1949 Duke 297/5 3,580,569 5/1971 Wilson 272/703 X FOREIGN PATENTS OR APPLICATIONS 17,991 8/1900 Great Britain 272/704 Primary ExaminerRichard C. Pinkham Assistant Examiner-Richard T. Stouffer AttorneyOBrien et al.
 ABSTRACT A wheeled support structure defining an open framework enclosure open on one side for egress thereinto and exit therefrom. The enclosure includes an adjustable height crotch sling and belt assembly for applica tion to a handicapped person or a convalescent patient, opposite side rails defining handrails which may be gripped by the person using the walker and also vertically and transversely adjustable crutch heads for positioning beneath the base ends of the arms of a person using the walker.
4 Claims, 5 Drawing Figures PAIENTED DEE! I 1975 Fig./
SNEEYlBFZ Paul Anaow Dav/d Gull/en Raq/ 6.0/02
WALKER WITH ADJUSTABLE CRUTCII HEAD SUPPORTS The walker of the instant invention has been primarily designed to provide a support structure for the physically handicapped or convalescent patients and which may be utilized as an assist to enable the handicapped or convalescent patients unable to walk unattended to have independent freedom of movement and a means for accomplishing walking exercises with assurance against falling.
The walker includes three different structural assemblages thereof for the support, either partial or substantially total, of the person using the walker. Opposite side hand-grips are provided for use by persons needing only little assistance to walk, under the arm engaging crutch heads are provided to provide further assistance in walking if such further assistance is required and a suspended combined safety belt and crotch sling assembly is'provided for substantially total support if the same is required. In addition, the underarm engaging crutch heads define a back-up safety factor for the handgrip portions of the walker should the person using the walker not be able to support himself by his hands and the combined safety belt and crotch engaging sling assembly defines an ultimate back-up for the handgrips and underarm engaging crutch heads.
By these three different forms of supporting structures being included in the same walker the versatility of the walker is greatly extended and a convalescent patient initially requiring almost total support may progress toward walking without any support through repeated use of the same walker and without fear of falling.
The main object of this invention is to provide a walker which may be utilized not only by persons requiring minimal support to walk but also persons requiring greater amounts of support including almost total support.
Yet another object of this invention is to provide a walker which may be readily adjusted in order to conforni to the height of a particular person using the walker.
Still another object of this invention is to provide a walker including underarm engaging crutch head supports that may be not only vertically adjusted but also laterally adjusted toward and away from each other.
A final object of this invention to be specifically enumerated herein is to provide a walker inaccordance' with the preceding objects which will conform to conventional forms of manufacture, be of simple construction and easy to use so as to provide a device that will be economically feasible, long lasting and relatively trouble-free in operation.
I These together with other objects and advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout, and in which:
FIG. 1 is a perspective view of the walker;
FIG. 2 is a side elevational view of the walker with a convalescent patient therein and utilizing the various patient supporting structures of the walker;
FIG. 3 is an enlarged fragmentary vertical sectional view taken substantially upon the plane indicated by the section line 3-3 of FIG. 1;
FIG. 4 is an enlarged fragmentary vertical sectional view taken substantially upon a plane passing through the mid-portion of one of the underarm crutch head terconnected at their upper ends by means of a pair of opposite side upper connecting members 22 and 24 extending between the uprights l4 and 18 and the uprights 16 and 20, respectively, as well as a pair of opposite end connecting members 26 and 28 extending between the uprights 18 and 20 and the uprights 14 and 16, respectively. If it is desired, the connecting members 22, 24 and 26 may be of a single tubular member bent into U-shaped configuration and secured at its opposite ends, together with the opposite ends of the connecting member 28, to the upper ends of the uprights l4 and 16.
A pair of opposite side intermediate height connecting members 30 and 32 are connected between the uprights 12 and 18 and the uprights 16 and 20, respectively, and an intermediate height end connecting member 34 is connected between the uprights l4 and 16 at the level of the connecting members 30 and 32. Finally, a pair of lower opposite side connecting members 36 and 38 are connected between the lower end portions of the uprights l2 and 18 and the uprights 16 and 20, respectively, while a lower end connecting member 40 is connected between the lower end portions of the uprights l4 and 16 at the level of the connecting members 36 and 38.
The lower end extremities of the uprights 14, 16, 18 and 20 include caster wheel assemblies referred to in general by the reference numerals 42 and accordingly, the frame 12 is mobile in any direction across the surface 43 upon which the caster wheel assemblies 42 are supported.
A combined safety belt and crotch sling assembly referred to in general by the reference numeral 44 is pro vided and includes a waist-encircling belt illustrated most clearly in FIG. 5 of the drawings and designated by the reference numeral 46. One end of the belt 46 is provided with a buckle assembly 48 with which the other free end 50 of'the belt 46 may be operatively engaged in order to adjust the effective circumference of the belt 46. The belt 46 includes peripherally spaced upper anchor rings 52 as well as lower peripherally spaced anchor rings 54.
The assembly 44 further includes a crotch engaging sling panel 56 and the panel 56 is elongated and transversely narrowed intermediate its opposite ends. The panel 56 includes four corner portions from which spring closed hooks 58 are supported and the four corner spring closed hooks 58 are engageable with the lower anchor rings 54 for support of the sling panel 56 from the safety belt 46. Further, the upper opposite side connecting members 22 and 24 include longitudinally spaced front and rear U-bolt anchors 60 to which the spring closed hooks 62 carried by the upper ends of four adjustable length flexible suspension straps 64 are secured. The lower ends of the suspension straps 64 are also provided with spring closed hooks 66 engaged with the upper anchor rings 52.
The walker further includes a pair of opposite side vertical support bars 68 at its rear end and provided with upper and lower guide sleeves 70 and 72 slidable on the connecting members 28 and 34, respectively, whereby the bars 68 are supported from the connecting members 28 and 34 for adjustable shifting toward and away from each other. Also, inasmuch as the guide sleeves 70 and 72 are slidably mounted on the connecting members 28 and 34, angular displacement of the bars 68 about their longitudinal axes is prevented.
Corresponding rear end portions 74 of a pair of frontto-rear extending support arms 76 include vertical sleeve portions 78 slidably disposed on the bars 68. The sleeves 78 include set-screws 80 whereby the height of the sleeves 78 on the bars 68 may be adjusted and the forward ends of the arms 76 include longitudinally spaced apertures 82 by which underarm engaging crutch heads 84 may be secured in adjusted position along the arms 76 and for support therefrom. Suitable fasteners 86 are secured through the crutch heads 84 and the corresponding apertures 82 in the associated arms 76. in this manner, the positioning of the crutch heads 84 along the arms 76 may be adjusted as desired. Further, inasmuch as the sleeves 78 carried by the arms 76 are vertically adjustable on the bars 68, the height of the crutch heads 84 may be varied as desired. Still further, inasmuch as the sleeves 70 and 72 carried by the upper and lower ends of the bars 68 are slidable along the connecting members 28 and 34, the spacing between the crutch heads 84 and their positioning transversely of the frame 12 may be adjusted as desired according to the needs of the individual physically handicapped person or convalescent patient utilizing the walker 10.
In operation, the handicapped person or convalescent patient is assisted into the frame 12 from the front side thereof after the combined safety belt and sling panel 56 have been applied. Then, the lower ends of the suspension straps 64 may be engaged with the anchor rings 52 and the height of the crutch heads 84 as well as their positioning longitudinally and transversely of the frame 12 may be adjusted.
After the convalescent or physically handicapped person has thus been positioned within the walker 10, he may proceed to walk with at least partial support from the walker 10. If but only little support is required, the hands of the person using the walker 10 may be engaged with the connecting members 30 and 32 utilizing the latter as handrails. If additional support for the person using the walker is desired, the height of the crutch heads 84 may be slightly increased so that the person using the walker 10 is also at least partially supported from the crutch heads 84. Finally, if almost total support of the person utilizing the walker 10 is desired, the length of the suspension or support straps 64 may be shortened so that a major portion of the weight of the person utilizing the walker 10 is supported from the combined safety belt and crotch sling assembly 44. Of course, if the person is utilizing the walker 10 only as a mobile hand-rail and he should lose his handgrip as well as his support from the crutch heads 84, the assembly 44 constitutes a back-up support preventing the physically handicapped person or convalescent patient utilizing the walker from falling to the surface 43.
The foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly all suitable modifications and equivalents may be resorted to, falling within the scope of the invention.
What is claimed as new is as follows:
1. A walker for assisting persons to walk, said walker comprising an upstanding frame including front and rear pairs of opposite side upright corner members, longitudinal frame members secured between and interconnecting corresponding front and rear corner members intermediate their upper and lower ends and transverse frame members secured between and interconnecting at least the rear corner members intermediate the upper and lower ends of said rear corner members, said frame including an upper frame portion supported from the upper end portions of said corner members, said frame including opposite side crutch head support members disposed inwardly of upstanding planes containing corresponding corner members of said frame with crutch head members supported from said crutch head support members, said frame including means operatively supporting said crutch head support members for independent vertical shifting relative to said frame as well as independent horizontal shifting transversely of said frame, said means for supporting said crutch head support members for vertical and transverse shifting including a pair of upstanding support bars spaced transversely of said frame inwardly of said rear corner members, said support bars being supported from said frame for independent transverse shifting relative to said frame, a pair of front-to-rear extending generally horizontal support arms having their rear ends slidably mounted on said support bars, said support arms and bars including coacting means operable to releasably retain said support arms in adjusted vertically shifted position, said crutch heads being mounted on the forward end portions of said support arms for adjustable shifting therealong, said support arms comprising said crutch head support members.
. 2. The combination of claim 1 wherein the lower ends of said upright corner members are provided with ground-engaging support wheels.
3. A walker for assisting persons to walk, said walker comprising an upstanding frame including front and rear pairs of opposite side upright corner members, longitudinal frame members secured between and interconnecting corresponding front and rear corner members intermediate their upper and lower ends and transverse frame members secured between and interconnecting at least the rear corner members intermediate the upper and lower ends of said rear corner members, said frame including an upper frame portion interconnecting the upper end portions of said corner members, said frame including opposite side crutch head support members supported therefrom inwardly of upstanding planes containing corresponding comer members of said frame with crutch head members supported from said crutch head support members forward of the rear corner members of said frame, said frame including means operatively supporting said crutch head support members for independent vertical shifting relative to said frame as well as independent horizontal shifting transversely of said frame, said upper frame portion including front and rear pairs of opposite side upper anchor portions, four downwardly convergent suspension strap members having their upper ends secured to said anchor portions, an adjustable length safety belt for encircling the waist of a person utilizing the walker, said adjustable length safety belt being supported from the lower ends of said strap members, said means for supporting said crutch head support members for vertical and transverse shifting including a pair of upstanding support bars spaced transversely of said frame inwardly of said rear corner members, said support bars being supported from said frame for independent transverse shifting relative to said frame, a pair of front-to-rear extending generally horizontal support arms having their rear ends rotatably and slidably mounted on said supportions of said belt.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US116073 *||Jun 20, 1871||Improvement in baby-walkers|
|US2459066 *||Sep 7, 1945||Jan 11, 1949||Sam Duke||Vehicle for invalids|
|US2719568 *||Aug 6, 1953||Oct 4, 1955||Nelly E Webb||Invalid walking and exercising apparatus|
|US3580569 *||Oct 14, 1968||May 25, 1971||Wilson Henry A||Training frame for use in learning how to ride a unicycle or walk on the hands|
|GB189917991A *||Title not available|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US4307715 *||Dec 29, 1980||Dec 29, 1981||Fante Emilie D||Ambulatory aid|
|US4621804 *||Mar 25, 1985||Nov 11, 1986||R-Jayco Ltd.||Therapeutic roller/walker|
|US4770410 *||Jul 3, 1986||Sep 13, 1988||Brown Guies L||Walker|
|US4788969 *||Jun 20, 1986||Dec 6, 1988||Thompson Marion E||Stationary seat crutch|
|US4890853 *||Mar 7, 1988||Jan 2, 1990||Luanne Olson||Wheelchair walker|
|US4893826 *||May 6, 1987||Jan 16, 1990||Canhart Industries, Inc.||Mobility support device|
|US4907794 *||Dec 24, 1987||Mar 13, 1990||Guardian Products, Inc.||Foldable rolling walker|
|US4911426 *||Jan 7, 1988||Mar 27, 1990||Scales Mary E||Interchangeable support and harness exerciser system|
|US4941497 *||Mar 8, 1989||Jul 17, 1990||Prather William R||Walker|
|US4941708 *||Sep 27, 1988||Jul 17, 1990||Heffner H Hugh||Lifting apparatus|
|US5033734 *||Jun 21, 1990||Jul 23, 1991||Jalbert Timothy J||Training aid for skaters|
|US5152730 *||Jun 4, 1991||Oct 6, 1992||Hoffman Roger E||Handless walking aid for preventing falls from loss of balance|
|US5156176 *||Mar 4, 1991||Oct 20, 1992||Doorenbos Daryl E||Stabilized walker device|
|US5174590 *||Jul 3, 1991||Dec 29, 1992||The United States Of America As Represented By The Administrator Of The National Aeronautics & Space Administration||Compliant walker|
|US5224721 *||Jul 23, 1992||Jul 6, 1993||Santmann Theresa M||Walker having folding and pivoting seat apparatus|
|US5228708 *||Sep 23, 1991||Jul 20, 1993||Verdugo Gracia Isabel||Walker and exercise apparatus for functional recovery|
|US5255697 *||Oct 23, 1991||Oct 26, 1993||Working Inc.||Walking support apparatus|
|US5280800 *||Mar 17, 1992||Jan 25, 1994||Pirrallo Frank G||Removable one piece walker seat|
|US5301968 *||Oct 15, 1991||Apr 12, 1994||Guardian Products, Inc.||Mobility support device|
|US5333333 *||Jan 6, 1993||Aug 2, 1994||Mah Gordon B J||Transportation, sanitation and therapy system for handicapped people|
|US5348035 *||Apr 14, 1993||Sep 20, 1994||John S. Fisher||Harness assembly for a crutch user|
|US5467793 *||Oct 27, 1994||Nov 21, 1995||Ontario Crippled Children's Centre||Orthotic walker|
|US5502851 *||May 26, 1994||Apr 2, 1996||Costello; Martin D.||Assisted lifting, stand and walking device|
|US5526893 *||Jan 27, 1994||Jun 18, 1996||H. Eugene Mack||Physical therapy apparatus|
|US5588456 *||Jul 12, 1995||Dec 31, 1996||Ontario Crippled Children's Centre||Orthotic walker|
|US5662560 *||Jul 10, 1995||Sep 2, 1997||Bjorn W. Svendsen||Bilateral weight unloading apparatus|
|US5830162 *||Jan 23, 1993||Nov 3, 1998||Giovannetti; Giovanni Battista||Apparatus for the antigravity modification of the myotensions adapting the human posture in all of the planes of space|
|US5911234 *||Oct 15, 1997||Jun 15, 1999||Hirst; Eric||Sling assembly for a pair of crutches|
|US6056673 *||May 5, 1998||May 2, 2000||Arrecis; Marco T.||Walking aid|
|US6076527 *||Jan 8, 1998||Jun 20, 2000||Rottinghaus; Herman James||Adaptive patient support and restraint system|
|US6139475 *||Apr 23, 1998||Oct 31, 2000||Bessler; Edward W.||Ambulatory aid device|
|US6196949 *||Feb 2, 1999||Mar 6, 2001||Ruben Rodarte||Apparatus for assisting and training a child to walk|
|US6343802 *||Dec 12, 1996||Feb 5, 2002||Ultimate Support Systems, Inc.||Method and system for concentrated primary support for a user in support assistive devices|
|US6527285 *||Sep 21, 2001||Mar 4, 2003||Calandro, Ii Vito John||Ambulatory stroller|
|US6539562 *||Apr 12, 1999||Apr 1, 2003||Bianca Dellapiana Italy||Lifting and walking aid for sick people|
|US6578594||Aug 20, 1999||Jun 17, 2003||Wade Hawkes||Mobile rehabilitative walker|
|US6742523 *||Jun 8, 2001||Jun 1, 2004||David Edward Dubats||Ambulator and gait harness system|
|US6836902||Sep 10, 2002||Jan 4, 2005||Alejandra G. Marquez||Infant walking trainer and carrier garment|
|US6935353||Jun 16, 2003||Aug 30, 2005||Wade Hawkes||Mobile rehabilitative walker|
|US7073801||Oct 7, 2003||Jul 11, 2006||Access Product Marketing, Llc||Foldable mobility support device|
|US7160165 *||Jun 16, 2003||Jan 9, 2007||Hyung Kyu Jung||Device for rippling of water|
|US7354382||May 27, 2004||Apr 8, 2008||Warren Ii Coy L||Wheeled ambulation and lifting apparatus|
|US7451992||Oct 29, 2007||Nov 18, 2008||Phillip Minyard Willis||Mobile support assembly|
|US7494450||May 14, 2004||Feb 24, 2009||Solomon Richard D||Variable unweighting and resistance training and stretching apparatus for use with a cardiovascular or other exercise device|
|US7540045||May 23, 2007||Jun 2, 2009||Avinoam Nativ||Sit-to-stand apparatus including pulley, handle, and leg brace mounted above supporting structure on adjacent, differing height vertical members|
|US7540527||Jan 31, 2006||Jun 2, 2009||Phillip Minyard Willis||Mobile support assembly|
|US7703417 *||Aug 25, 2006||Apr 27, 2010||Tianyun Wu||Baby walker/walking safety belt apparatus|
|US7837208||Apr 14, 2008||Nov 23, 2010||Phillip Minyard Willis||Mobile support assembly|
|US7887471 *||Sep 25, 2009||Feb 15, 2011||Mcsorley Tyrone G||Neuromuscular training apparatus and method of use|
|US7926834||Oct 30, 2007||Apr 19, 2011||AMG Medical, USA||Mobile support assembly|
|US7935026||Nov 25, 2008||May 3, 2011||Mcsorley Tyrone G||Extremity therapy apparatus|
|US8146992 *||Jul 27, 2009||Apr 3, 2012||The United States Of America As Represented By The Secretary Of The Navy||Turret seat|
|US8146993||Jul 31, 2009||Apr 3, 2012||The United States Of America As Represented By The Secretary Of The Navy||Rotatable seat assembly|
|US8313116||Apr 19, 2011||Nov 20, 2012||Amg Medical, Usa.||Mobile support assembly|
|US8439376||Nov 23, 2010||May 14, 2013||Amg Medical, Usa.||Mobile support assembly|
|US8967642||Mar 15, 2013||Mar 3, 2015||Entropy Enterprises, LLC||Walker|
|US9173802||Nov 20, 2012||Nov 3, 2015||Amg Medical, Usa.||Mobile support assembly|
|US9265686 *||Mar 13, 2013||Feb 23, 2016||Kathy Pichnarcik||Systems and methods for exercising muscles that move the thigh|
|US9265687 *||Jun 20, 2011||Feb 23, 2016||Gate Rehab Development Ab||Rising support integrated in a walking aid|
|US9375379 *||Jul 23, 2015||Jun 28, 2016||Jean-Paul Morier||Crutch extension upper body support assembly|
|US9414987||Feb 2, 2016||Aug 16, 2016||Entropy Enterprises, LLC||Walker|
|US9445968||Nov 20, 2015||Sep 20, 2016||Amir Burstein||Infant mobility device|
|US9452102 *||Oct 29, 2013||Sep 27, 2016||Roberto Ledea||Mobility walker with spring and exercise straps|
|US9468579 *||May 9, 2016||Oct 18, 2016||Safety Walker Llc||Safety walker|
|US9486383||Jan 12, 2014||Nov 8, 2016||Kathy Pichnarcik||Systems and methods for exercising muscles that move the thigh|
|US9554964 *||Oct 3, 2012||Jan 31, 2017||Lite Run, Inc.||Suspension and body attachment system and differential pressure suit for body weight support devices|
|US9579249 *||Aug 15, 2016||Feb 28, 2017||Safety Walker Llc||Safety walker|
|US9610210||Feb 19, 2015||Apr 4, 2017||Eagle Petroleum, Corp.||Walker with adjustable strap|
|US20040002407 *||Jun 16, 2003||Jan 1, 2004||Wade Hawkes||Mobile rehabilitative walker|
|US20040063550 *||Jul 15, 2003||Apr 1, 2004||Harris Robert D.||Mobile body suspension exercise device|
|US20040079405 *||Oct 7, 2003||Apr 29, 2004||Sanders Christopher D.||Foldable mobility support device|
|US20050268397 *||Jun 3, 2004||Dec 8, 2005||Avinoam Nativ||Apparatus for assisting a person to stand and walk|
|US20060011228 *||Oct 13, 2005||Jan 19, 2006||Craig H R||Mobile Medical Support Device|
|US20060034983 *||Nov 18, 2003||Feb 16, 2006||Toshio Nakai||Method of cooking food by preheating and foodstuff to be cooked by heating|
|US20060094317 *||Jun 16, 2003||May 4, 2006||Jung Hyung K||Device for rippling of water|
|US20070136931 *||Oct 18, 2006||Jun 21, 2007||Teresa Woodman||Walking training apparatus|
|US20070219069 *||May 23, 2007||Sep 20, 2007||Nativ||Apparatus for assisting a person to stand and walk|
|US20080017227 *||Jul 19, 2006||Jan 24, 2008||Ward Barry D||Walking aid apparatus|
|US20080020909 *||Jul 12, 2006||Jan 24, 2008||Blair Constance L||Safety Assistance Strap with Bar Attachments|
|US20080121191 *||Aug 25, 2006||May 29, 2008||Tianyun Wu||Baby walker/walking safety belt apparatus|
|US20090115158 *||Nov 5, 2007||May 7, 2009||Paul Kevin Lawrence||Mobility trainer|
|US20100130336 *||Sep 25, 2009||May 27, 2010||Mcsorley Tyrone G||Neuromuscular Training Apparatus and Method of Use|
|US20110018319 *||Jul 27, 2009||Jan 27, 2011||Christopher Allen Brown||Turret seat|
|US20110018320 *||Jul 31, 2009||Jan 27, 2011||Schneider John F||Foot controls for a rotatable seat assembly|
|US20130098413 *||Jun 20, 2011||Apr 25, 2013||Anders Ahlbertz||Rising Support Integrated in a Walking Aid|
|US20130178767 *||Jan 6, 2012||Jul 11, 2013||Retrainer Inc.||Physical therapy support device|
|US20150115556 *||Oct 29, 2013||Apr 30, 2015||Roberto Ledea||Mobility Walker with Spring and Exercise Straps|
|US20160287968 *||Apr 4, 2016||Oct 6, 2016||Tom Brady||Exercise chair|
|DE9315971U1 *||Oct 20, 1993||Mar 3, 1994||Reger Heinrich||Fahrbarer Gehbarren|
|EP2768462A4 *||Oct 25, 2012||Sep 2, 2015||Perry A Cammisa||Upper body attachment apparatus for whole body vibration equipment|
|WO1994015570A1 *||Jan 4, 1994||Jul 21, 1994||Mah Gordon B J||Transportation, sanitation and therapy system for handicapped people|
|WO1997019611A1 *||Dec 2, 1996||Jun 5, 1997||Brian Phillips||Patient mobility system|
|WO2002065969A2 *||Feb 13, 2002||Aug 29, 2002||Blair Truxal||Ambulatory assist device|
|WO2002065969A3 *||Feb 13, 2002||Mar 13, 2003||Blair Truxal||Ambulatory assist device|
|WO2006084345A1 *||Feb 9, 2005||Aug 17, 2006||Arkadij Semenovich Gofman||Travelling device|
|U.S. Classification||280/87.41, 297/5, 482/67, 135/67, D12/130, 482/69, 280/87.21|
|Cooperative Classification||A61H2201/1635, A61H3/008, A61H2201/0192, A61H2201/163, A61H2201/1628, A61H2201/165, A61H3/04|