Abstract: A seat exercise device for use onboard a mobile platform such as a commercial aircraft is disclosed, wherein a passenger engages the exercise device while seated to reduce the risk of deep vein thrombosis (DVT) during extended periods of travel. The preferred embodiment of the present invention comprises a leg support secured to a passenger seat and a foot support secured to a lower end of the leg support. A trombone spring is secured between the leg support and the foot support such that a passenger may push down on the foot support to flex and contract thigh muscles. Additionally, a pivot spring is secured between the leg support and the foot support such that a passenger may pivot the foot support to flex and contract calf muscles. Accordingly, the flexing and contracting of leg muscles increases blood circulation and reduces the risk of DVT during long flights.

Abstract: A bicycle seat supported generally by a tubular V-shaped configuration with an offset seat post to allow for padded leg cradle supports, padded handles and adjusting handle grip bars. The bottom of the ergonomically designed offset walker frame has an adjustable rubber tip for height adjustment. The seat is on a fixed top post. The position can be adjusted up and down in height, forward and back and front to back. Using the handle grips the user can straddle the bicycle seat and rest the injured limb on the leg cradle supports without having to strap the injured limb to the walker frame. The walker frame has been ergonomically designed for balance. The tubular construction is comprised of a number of offsetting bends and spacers, which offset the leg cradle to the proper distance for comfort and balance.

Abstract: A mobile, rehabilitative walker is configured for use outdoors on an irregular or rough support surface. The walker includes a support frame, configured for supporting a person in an upright position, having a plurality of frame members defining an open rear end and an interior space sized for receiving a wheelchair. A plurality of wheels are rotatably coupled to the support frame, and configured for multidirectional movement on the support surface. A support harness is vertically suspended from a rotatable upper rail of the support frame. A crank mechanism is coupled to the upper rail, and configured to rotate the upper rail to draw the support harness upward. The crank mechanism includes a crank handle located near the rear end of the support frame to facilitate rotation of the upper rail.

Abstract: An infant support structure includes a base, a frame coupled to the base, a seat coupled to the frame for movement relative to the base, a motion sensor configured to output a signal associated with a movement of the seat relative to the base, and an output generating system. The frame includes a first frame portion and a second frame portion with the first frame portion being releasable coupled to the seat and pivotably coupled to the base. The output generating system is configured to generate sensible output based on the signal.

Abstract: An ambulation aid which has a support structure for the patient that both supports the patient's weight, and is movable laterally with respect to the frame to accommodate sideways hip movement of the patient's gait. The inventors have observed that a patient's hip will shift laterally as the patient steps forward and places weight on the forward stepping leg. This causes prior art ambulation aids to jerk sideways. The present invention overcomes this by providing a support structure which can move sideways without requiring the entire frame to move sideways. In one embodiment, the support structure slides in a track behind the patient, allowing lateral movement. In another embodiment, the support structure includes a belt which either slides through rollers behind the patient, or is attached but is flexible to allow hip movement, or is attached to a slider behind the patient.

Abstract: A patient transfer platform that is used by the patient to lift himself/herself using his/her upper body strength to a supported position on a non-slip platform rollable on lockable wheels or casters which is then easily maneuvered about even when supporting the patient so that many partially disabled persons could remain in their homes with their families instead of being institutionalized. A method of transferring a patient that utilizes the patient transfer platform is also provided. The patient transfer platform includes a patient support deck assembly, a support frame having four frame legs secured to the patient support deck assembly and a rear trailing arm assembly secured to the patient support deck assembly.

Abstract: A convertible activity center has a tray that can be locked in a closed loop position with an attached seat to contain an infant and unlocked with the seat removed to an open position, creating a play space from which a toddler can enter and exit at will, or interact with it from the outside. The activity center can also have convertible toys. The same toys that an infant can enjoy can be converted to toys suitable for an older infant or toddler.

Abstract: A therapeutic walking aid is adapted to support a patient in an upright position The walking aid includes side portions at least partially defining an open interior space sized to accommodate the patient. The walking aid includes elongated arm supports extending along side portions of the walking aid and a back support extending upwardly to an elevation above the arm supports and extending across a back portion of the walking aid. The arm supports cooperate with the back support in order to provide support for a patient's arms and upper body. The walking aid can be adapted to be wheelchair accessible in order to facilitate a patient's transfer from the walking aid to a wheelchair in a safe and efficient manner. The walking aid includes a releasable support system as well.

Abstract: A mobile rehabilitative walker is configured for use outdoors on an irregular and rough support surface. A support frame is configured for supporting a person in an upright position and includes a plurality of frame members defining an open rear end, and an interior space accessible through the open rear end, being sized for receiving a wheelchair through the open rear end and into the interior space. A plurality of wheels are rotatably coupled to the support frame and are configured for multidirectional movement on the irregular and rough support surface. The wheels have a diameter sized to reduce friction between the wheels and the support surface and sized to easily roll over the irregular and rough surface. A pair of adjustable hand grips extend towards the interior space, such that the user is stabilized within the interior space of the frame by grasping the hand grips.

Abstract: A stroller for helping an individual to ambulate includes: (a) an upper ring assembly, including an upper ring member and a hinged upper gate segment having an open position and a closed position; (b) a lower ring assembly, including a lower ring member, the upper ring member being substantially parallel to and above the lower ring member, the upper ring member having a diameter between about ¼ and ½ the diameter of the lower ring member; (c) a seat assembly connected to the upper ring member; (d) at least three spaced-apart legs connecting the lower ring member to the upper ring member; and (e) at least three spaced-apart wheels connected to the base of the lower ring member.

Abstract: A combined baby walker/rocking chair comprises a chassis, a support, an upper frame, and a seat. The chassis and the upper frame are connected via the support. Two parallel transverse beams are mounted to a lower end of the support. Plural casters are mounted to an underside of the chassis. The chassis comprises two symmetric arcuate frames and two control devices that are constructed to allow a baby walker to be converted into a rocking chair, and vice versa, while providing a stable structure.

Abstract: A stair walker device for aiding ambulatory persons in ascending ad descending stairs, ramps and other uneven walkable surfaces. A pair of hand-controlled levers used separately or together to adjust the front legs, by controlling the extension or retraction of a pair of front leg portions. The rear legs are adjusted for the user's height once only by suitable adjustable fastening. The sides of the stair walker frame can be readily folded for storage or for carrying.

Abstract: A seat suspended between two crutches in the manner of a sling, to provide the user of the crutches with a place to rest. The seat is attached to both crutches of a pair of crutches used by an individual needing crutches. The seat is attached by one or more adjustable straps and/or release clips. The seat allows the user to rest his body weight on the seat thereby relieving the arms of the user without placing weight on the lower limbs. The crutches are fully usable in the normal manner for walking while the seat is attached and suspended from the crutches. The seat hangs below and behind the user when the crutches are used by the user for walking. The feet of the crutched are placed adjacent one another, while the tops of the crutches are spread apart to raise the seat into a usable height, while providing a stable base for supporting the user. The crutches are then angled slightly forward with the tops of the crutches in front of the user and the crutch feet behind the user.

Abstract: An apparatus that is convertible between walker and a wheelchair has one pair of wheels that are continually engaged with the ground and a second pair of wheels that are movable from a first position out of engagement or disengaged with the ground, in which the apparatus is used as a walker, to a second position into engagement with the ground, in which the apparatus is used as a wheelchair. The movable wheels are controllable by the operator through the use of handle members connected such wheels. The handle members rotate the wheels into and out of engagement with the ground along a path that is at an angle from the vertical, thereby assuring disengagement of the wheels from the ground.

Abstract: A walker having a frame which provides two front legs. Two rear legs are attached to the frame. A cross member provides support for the device which is supplemented by a link. Each of these structural members is in a pivotal relationship with the remaining members so the walker may be folded for storage. The cross member and link provide bracing for structural integrity, but are also incorporated into the folding structure. The optional seat is also in a pivotal relationship with the device. The seat prevents the walker from being folded while it is being used as a walker.

Abstract: An improvement to a standard three wheeled walker to render it usable for carrying objects on a folding tray mounted between the vertical supports of the walker. A panel is split into two portions, which are pivotally joined together with a piano hinge. A “U” clamp having a mounting bracket and hinge is mounted on each vertical support. The hinges are attached to the bottom edges of the two split panels to attach the folding tray across the space between the two vertical supports. The tray folds upwardly when the walker is folded.

Abstract: A support assembly for a crutch user comprising a seat element, an element to suspend the seat from the crutches, and a seat urging means to urge the seat towards the user. The seat urging means may releasably attach the seat to the crutch or to the user. The seat urging means optionally helps stabilize the seat during entry and exit. The seat urging means may disengage at a predetermined position. Alternatively, the seat urging means may release at a predetermined force. The seat urging means may be adjustable for location of pull, or direction of pull, or amount of pull. A support assembly for a crutch user comprising a seat element, an element to suspend the seat from the crutches, and an element to stabilize the seat for easier entry and exit.

Abstract: A seat suspended between two crutches in the manner of a sling, to provide the user of the crutches with a place to rest. The seat is attached to both crutches of a pair of crutches used by an individual needing crutches. The seat is attached by one or more adjustable straps and/or release clips. The seat allows the user to rest his body weight on the seat thereby relieving the arms of the user without placing weight on the lower limbs. The crutches are fully usable in the normal manner for walking while the seat is attached and suspended from the crutches. The seat hangs below and behind the user when the crutches are used by the user for walking. The feet of the crutched are placed adjacent one another, while the tops of the crutches are spread apart to raise the seat into a usable height, while providing a stable base for supporting the user. The crutches are then angled slightly forward with the tops of the crutches in front of the user and the crutch feet behind the user.

Abstract: A child carrier harness includes a first harness member made of soft goods with a pair of male fasteners receivable with a second pair of female fasteners secured to the ends of an adjustable strap secured to the rear face of the seatback. The harness also includes an adjustable strap disposed on the rear face of the seatback for adjusting the length of the strap and thereby adjusting the harness to accomodate different midsection sizes.

Abstract: A fixing safety-control device for a collapsible child walker is composed by a pressing article and an integral stopping board. On one reinforcing rib near the end of the sliding groove in the base member is provided with a crooked groove. The inserting strip provided on one end of the stopping board is inserted into the crooked groove to be fixed, and then the pressing article is penetrated through the sliding groove of the base member to let the front head be inserted into the hole of the stopping board so as to be in a fixed position. When the seat structure being collapsed, the sliding article of the connection structure will be stopped against the stopping surface of the stopping board and fixed so as to keep a safe distance from the base member to prevent a user's hands from being clamped. At last, the pressing article is pressed to let the stopping board separate from the sliding article, and by the elasticity of the hook, the child walker can be collapsed successfully and safely.

Abstract: The present invention relates to a dual function baby walker, wherein a supporting frame is mounted at the top of a base seat body which is disposed to the bottom of an upper housing seat including a chamber. When the chamber at the upper housing seat is provided with a chair, the baby can be seated on the chair and the legs of the baby can touch the ground to control the moving direction of the walker. When the baby is standing up, the upper housing seat can be detached from the supporting frame, and the bottom of the upper housing seat is mounted with a plurality of wheel bodies. The top of the upper housing seat is provided with a handle to provide holding for the baby while walking. Thus, the baby walker is suitable to be used for baby at different growth stages such that the baby walker can be functioned as a sitting type of baby walker and a pushing type of baby walker as well.

Abstract: A rehabilitation chair comprises upper frame, lower and intermediate frames. The upper frame has a seat, side frames with arm assemblies, a pivotable front cross-arm and a back, while the intermediate frame includes a height adjustment unit and the lower frame includes legs and wheels. The wheels are located outboard of the seat to enhance stability, while the legs are positioned to provide a free space for the user's legs to facilitate user propulsion of the chair when the user is either in a standing or seated position. The seat of the chair is of narrow depth, allowing freedom of leg motion when the user is seated.

Abstract: A adjustable knee support device for use with a walker employs a support platform, at least one positioning assembly, and a bracing assembly. The positioning assembly includes at least one connector construction and at least one bolstering construction. The connector construction and bolstering constructions are adjustable, allowing the height of the support platform to be changed. The support platform may be alternately used to provide left leg support and right leg support, as needed. The bracing assembly is pivotally attached to the support platform and automatically adjusts to ensure that the device is maintained securely in any chosen orientation. The device may be attached and removed without tools or modification to an existing walker.

Abstract: A new Mobile Leg Support Device for supporting one leg of a user bent at the knee while allowing the user to stand on the other leg and move the device about. The inventive device includes a wheeled base, a pair of spaced uprights extending upward from the wheeled base, a leg support member extending between the spaced uprights for supporting one leg of a user bent at the knee, and a handle extending between the spaced uprights for supporting the upper body of the user and enabling the user to steer the device. In a preferred embodiment, the leg support member and the handle are each independently height adjustable for accommodating users of varying height.

Abstract: A baby walker includes a lower support column swivelably mounted on a base, a curved support bar including a mediate portion secured to the lower support column, two wheels each rotatably mounted on a respective end portion of the curved bar, an upper support column adjustably secured to the lower support column, a top shelf secured to the upper end portion of the upper support column and containing a through hole in the mediate portion thereof, and a seat assembly swivelably mounted in the through hole.

Abstract: A stationary baby walker is provided including a stationary frame. A baby seat is movable along the frame and rotatable for allowing a baby to walk along a path, turn around, and again walk along the path.

Abstract: A device resting on a floor surface for enhancing the self-mobility of a person comprises a base structure comprised of a plurality of floor rail stabilizers and a base platform. The plurality of floor rail stabilizers include parallel sides. The base platform is comprised of a base frame and a base plate fixably attached to the base frame with the base frame having parallel side surfaces and being fixably attached in flush surface-to-surface relation to the plurality of floor rail stabilizers for strength and stability. The base platform is located and positioned between the plurality of floor rail stabilizers for holding the device to the floor surface. A plurality of upright side stands are sized and positioned on the floor rail stabilizers for sustaining and transferring a lateral force applied by the person. Each upright side stand is comprised of a plurality of vertical rail members and a plurality of angled rod members.

Abstract: A walker having an expandable seat adapted to accommodate users of varying body sizes to enter the walker and get in and out of the seat. The walker comprises a front cross bar having two tubular ends, and two side frames rotatably connected to each of the tubular ends of the front cross bar, so that the side frames can be rotated inward and outward with respect to the front cross bar. A telescopic upper crossbar is mounted between the side frames at the upper horizontal tubing for limiting the angular movement of the side frames when a desired position has been selected. The expandable seat includes a tubular rear end, to which a pair of seat support rods are slidably mounted. A bracket is rotatably attached to each of the sliding rods for engaging the side braces of the side frame when the seat is folded down in the horizontal position.

Abstract: The disclosure relates to a safety walker assembly to assist handicapped people in walking. The safety walker assembly comprises a pair of side frames joined together by a horizontal bar arrangement to form a lightweight three sided structure. A handle bar grip member is arranged on each side frame, and an actuatable "emergency" alert device is attached to the structure, arranged to be switchable on and off by a user of the safety walker assembly. The alert device is arranged to activate upon tipping of the walker from its normal vertical.

Abstract: A walking chair having a pair of opposed arcuate side frames and a front rod pivotally connected with corresponding first distal ends of the arcuate side frames, a rear rod opposed to the front rod and pivotally connected with corresponding second distal ends of the arcuate side frames, such that when a folding device which is provided at joints of the front rod and the first distal ends of the arcuate side frames and of the rear rod and the second distal ends of the arcuate side frames is activated, the arcuate side frames are able to be folded and then positioned in place to allow the arcuate side frames to engage with the ground to allow a walking chair converted into a rocking chair.

Abstract: A cart for injured persons, designed as an alternative to crutches for individuals with an injured leg. A padded leg support surface provides a comfortable location upon which the injured leg (or cast) may be rested. The cart is propelled by the individual using the uninjured leg. The front of the cart includes two wheels mounted on forks each having a handle bar that extends upwardly. A front pad is attached to the handle bars to provide a comfortable surface for the user to lean against. Hand brakes are also included for gripping opposing sides of the front wheels to brake the cart when brake levers on the handle bars are activated. The upper ends of both handle bars also include an elastomeric hand grip. The padded leg support surface is supported by a leg support assembly that is configured to be attached to either side of the cart. This allows a user to accommodate a left or a right injured leg.

Abstract: A circular walker has a base seat, a plurality of support legs, and an annular holder. The base seat has a disk plate, an annular wall surrounding the disk plate, an annular flange formed on the annular wall, an annular slide rail formed in the base seat, and a plurality of annular positioning plates disposed on the disk plate. Each of the annular positioning plates defines a recess hole to receive a ball. The annular holder has a ring and a band connected to the ring. The plurality of support legs are connected to the ring and disposed beneath the ring. Each of the support legs has an annular recess to receive the annular flange, a hollow taper end to receive a bearing and a spherical body. The spherical body is inserted in the annular slide rail.

Abstract: An improved child walker with a variety of safety features is disclosed. The child walker preferably includes three rolling supports which are stable and tip resistant in a wide variety of circumstances. The child walker provides for braking when one of the rolling supports passes an edge or a ledge of the floor surface. The rolling mechanism of the child walker advantageously limits the direction of travel allowed by the child to improve safety, and can be adjusted to control the speed of the walker.

Abstract: A baby walker includes an upper part, a lower part having wheels disposed thereto and two pairs of crosswise connected links connected between the upper part and the lower part, a seat member having a back member received therein and securely connected to the upper part. The upper member has two apertures defined diametrically opposite to each other and two first hooks formed to an underside of a periphery defining each of the apertures. The back member has two second hooks extending therefrom so as to be engaged with the first hooks.

Abstract: A new and improved collapsable, combination chair/walker for aiding elderly and/or disabled people in independent movement includes an upstanding foldable, or collapsable frame including a front rail, a pair of opposite side rails and a back, and the frame supports a removable seat at an intermediate level for a person to sit within the frame. An open space is provided forwardly of the seat for accomodating the legs of an occupant in both a standing/walking position and/or a seated position. The open space is defined between the front rail and a forward edge of the seat and a flexible detachable safety strap extends into the open space between the seat and front rail for preventing an occupant from sliding out of the seat onto the floor or falling to the floor from a walking or standing position. Rollers or casters are provided for easy movement of the chair/walker and brakes are provided on at least some of the rollers to immobilize the chair/walker when desired.

Abstract: A walking aid for physically challenged persons having front and back leg assemblies each having a front leg extending forwardly and a rear leg extending rearwardly and wheels at the lower ends of the legs, and modular hinges at the upper ends of each pair of legs. Each modular hinge has a bearing housing with bearing recesses, two bearing bodies, each bearing body being received in a respective recess. Each bearing body is interengagable with a respective front or rear leg, and, a transverse assembly bar is connected to the hinge mounting and secures the hinges in spaced apart side by side relation. Also disclosed is a brake locking system for an in-line two part brake handle, and a multi-use seat for a walker.

Abstract: This device comprises a folding seat for walkers. It is inexpensive, easily removable, installable, and storable. It comprises an elongated, flexible sheet whose ends can be bent over and under the side bars of a walker and connected together underneath to form a seat by lace and eyelets. By adjustment of the spacing or overlap of the ends, the height of the seat from the floor is adjustable.

Abstract: A child exerciser device in which an integral seat and tray are adapted to bounce relative to a bouncer ring. The bouncer ring rotates relative to a cross piece member by means of a lazy susan mechanism. The cross piece includes pivotable legs which are adapted to be adjustably engaged in tubular members extending upward from a base member which allows the device to rock in only one back and forth direction. The top portion of the device is removable from the base member and can be disposed within the base member whereby the collapsed unit can be manually transported and stored.

Abstract: A circular walker having an improved seat assembly and wheel structure. The seat structure includes a lace sewn between the seat and a backrest cover, buckles extending with a cloth strip on the sides and rear of the lace on the seat and engaging sheets on a front. The engaging sheets and buckles are inserted through holes in the carriage and hook on the carriage to fix the seat to the carriage. The wheels prevent foreign objects from rolling into the axle center without need of riveting the axle center. Each wheel has a seat body, two wheel bodies, a seal cover and a main seal cover, the main seal cover having an integral axle hole engaged by a distal end of an axle rod having an engaging block. The seal cover and main seal cover and main seal cover assembled together by inserting the axle rod through axle holes.

Abstract: The present invention is a hemi-wheeled walker which is particularly useful with respect to hemiplegics. Patients of this type generally have one strong side of their body and one relatively weak side. Many patients have suffered from a stroke. The hemi-wheeled walker comprises an upright segment having a lower base portion extending parallel to the side of the user, with a handle at an upper portion thereof. The upright segment is a adapted for low force movement across a support surface when the user is supported on his strong side and adapted for gripping engagement with the support surface when the patient requires additional support when he is primarily supported by his weak side. A stabilizing segment is provided to one side of the upright segment and has at least one wheel at a point of contact of the stabilizing segment with the support surface.

Abstract: Wheeled apparatus (10) is usable both as a wheeled walker and as a wheelchair. The wheeled apparatus (10) includes a foldable frame (12 or 258), first (16A) and second (16B) transversely spaced-apart wheels that are attached to the frame (12 or 258) with a negative camber angle, a third wheel (24A) that is longitudinally spaced from the first (16A) and a second (16B) wheels and that is attached to the frame (12 or 258), and a seat cushion (97) that is attached to the frame (12 or 258). When used as a wheeled walker, bi-directional seat (101, 124, 146, or 162) provides rearward facing seating (186) for resting, and when used as a wheelchair, the bi-directional seating means (101, 124, 146, or 162) provides forward facing seating (187). Centers (94) of handgrips (82A and 82B) are disposed longitudinally intermediate of the first and second wheels (16A and 16B) and the third wheel (24A) to minimize danger of the wheeled apparatus (10) tipping backwardly when used as a wheeled walker.

Abstract: A rollable walker for traversing stairs and substantially level surfaces, comprising a frame which includes a left and a right upright members, the left and right upright members including front legs, and an upper segment. The frame further includes a crossbar which is pivotaly connected to the left and a right upright members, the crossbar including a generally U-shaped transverse element and vertically disposed segments acting as rear legs. The crossbar is supported by supporting means. The supporting means is attached or integrally formed with the left and right upright members. A pair of rear wheels and a pair of front wheels engaged by wheel mounts, each wheel having two vertical planar surfaces. The rear wheels are connected to the rear legs, whereas the front wheels are connected to the front legs.

Abstract: In an orthotic walker, mechanism is provided to bias alternate motion of a user's legs. The mechanism may be a reciprocating bar at hip level, or at least one strap ends of which are attached to leg braces and the bight passing round a fixed frame member. A stirrup mechanism may be pivoted at an "ankle joint" and the pivotal motion may be limited to avoid toe down position. The stirrup may have a clamp for a shoe. Brake mechanism may be movable between operative and inoperative positions. In the operative position rearward rolling is disallowed while forward motion is allowed.

Abstract: A foldable walker (10) includes a first pair of opposed legs (14,16) and a second pair of opposed legs (13,15). A housing (25) is positioned between the first pair of legs (14,16). The housing (25) carries a lock/release mechanism (35) that includes a depressible button (36). The button (36) is connected to levers (45,47) such that when the button (36) is depressed, the levers (45,47) rotate to translate rods (51,53), respectively. When the rods (51,53) are so moved, pawls (68) connected to the rods (51,53) are rotated out of their normal engagement with bosses (60) carried by the first pair of legs (14,16). The first pair of legs (14,16) may then be rotated with respect to the housing (25) so that the second pair of legs (13,15) are positioned adjacent to each other and to the housing (25).

Abstract: A combination wheelchair/walker when in a wheelchair configuration having four spaced apart surface support wheels positioned on each corner of a generally rectangular form in which a person is supported thereby. The rear pair of wheels fixed in their direction of travel and the front pair of wheels being pivotable through 360 degrees. In the walker configuration the generally rectangular form is converted into a generally triangular or trapezium support form with the two rear wheels remaining in their original spaced apart position with the front two wheels moved closer together in a relatively reduced spaced apart relationship acting effectively as slightly spaced apart dual wheels. The seat platform of the wheelchair is rigid and folds up against the front of the back of the device in its walker or transport/storage configuration.

Abstract: An interface is provided to convert a wheelstand to a wheelchair by removal of the prone board from the wheelstand frame. The interface has a rectangular frame member with outwardly extending tabs which are connected to the wheelstand frame by interlock positioning collars, brackets and latches. A seat is connected to the interface frame member.

Abstract: A frame having vertically extending corner posts and horizontal rails therebetween in a rectangular configuration. A support plate positionable in a horizontal orientation with parallel lateral side edges and a circular hole through the center thereof. A child seat positioned within the hole of the support plate. Linear bearing surfaces formed by horizontal slots on facing surfaces of the horizontal rails and the lateral edges of the support plate received within the slots to allow for the smooth linear sliding movement of the plate with respect to the frame. A circular bearing surface formed between the inner edge of the hole and the outer edge of the seat to allow smooth rotational movement of the seat.

Abstract: A foldable front-entry safety walker is disclosed having a resistance to backward motion of the walker. Various embodiments of the walker are disclosed. The walker includes a pair of side frames, along with a corresponding pair of front legs and a pair of rear legs. A foldable seat is disposed at the rear portion of the walker. The walker is relatively lightweight allowing a person with limited walking ability to easily advance the walker forward. The rear legs may have spring-loaded brakes that are functional to prevent backward motion of the walker under certain conditions. If the user falls backward for whatever reason, the user will strike either the seat back or the seat cushion and the force of the falling body will activate a spring-loaded rear legs to prevent backward motion of the walker.

Abstract: In an orthotic walker, mechanism is provided to bias alternate motion of a user's legs. The mechanism may be a reciprocating bar at hip level, or at least one strap ends of which are attached to leg braces and the bight passing round a fixed frame member. A stirrup mechanism may be pivoted at an "ankle joint" and the pivotal motion may be limited to avoid toe down position. The stirrup may have a clamp for a shoe. Brake mechanism may be movable between operative and inoperative positions. In the operative position rearward rolling is disallowed while forward motion is allowed.

Abstract: An adjusting device includes an upper and a lower ring element connected with each other by a pivotal device disposed therebetween, the pivotal device has two pairs of rods cross-pivotally engaged, the upper ring element has a plane portion which has a shoulder formed on an under side, the adjusting device includes a movable element engaged to one pair of rods of the pivotal device, a base engaged to the under side of the plane portion and an operation element pivotally engaged to the base. The movable element has a serrated portion defined in an under side and the base has an opening defined therein corresponding to the serrated portion of the movable element.