# US 2019/0168069 A1 · Simulator system and method for exercising lower limbs of a user seated on a wheelchair or like vehicular system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0168069 A1 - Document ID: US20190168069A1 - Status: Published application - Kind: A1 - Application number: 16/000,080 - Filed: 2018-06-05 - Published: 2019-06-06 - Earliest claimed: 2017-12-01 - Assignees: RehabMaker Corporation - Applicants: RehabMaker Corporation - Inventors: Nikita Igorevich Chizhov; Anastasia Galkina - Web page: https://patentgrep.com/patent/US20190168069A1 ## CPC - A61H 1/0266: {Foot} - A63B 23/04: for lower limbs {(training appliances for special sports A63B69/00; for the purpose of producing mechanical power F03G5/00)} - A61G 5/10: Parts, details or accessories - A61G 5/128: {for feet} - A61H 1/0214: {by rotating cycling movement} - A61H 1/0237: {for the lower limbs} - A63B 22/0605: {performing a circular movement, e.g. ergometers} - A61H 2201/0149: Seat or chair - A61H 2201/0192: Specific means for adjusting dimensions - A61H 2201/1207: with electric or magnetic drive - A61H 2201/1261: combined with active exercising of the patient - A61H 2201/14: Special force transmission means, i.e. between the driving means and the interface with the user - A61H 2201/1642: Holding means therefor - A61H 2201/50: Control means thereof - A61H 2201/5043: Displays - A61H 2201/5061: Force sensors - A61H 2201/5079: Velocity sensors - A61H 2201/5097: wireless - A61H 2203/0431: in 90°/90°-position, like on a chair - A61H 2205/106: for the lower legs - A61H 2230/065: used as a control parameter for the apparatus - A61H 2230/208: used as a control parameter for the apparatus - A61H 2230/805: used as a control parameter for the apparatus - A63B 23/03516: {For both arms together or both legs together; Aspects related to the co-ordination between right and left side limbs of a user} - A63B 2208/0233: in 90/90 position, like on a chair - A61H: PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY (electrotherapy, magnetotherapy, radiation therapy or ultrasound therapy A61N) - A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H) - A61G: TRANSPORT, PERSONAL CONVEYANCES OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS (appliances for aiding patients or disabled persons to walk A61H3/00); OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES (embalming corpses A01N1/00) ## Abstract The present invention discloses a simulator system and method for exercising the limbs of a user confined to the wheelchairs. The method of rehabilitation of the user includes providing a simulator system mountable on the wheelchair, configuring various parameters associated with a gear motor, and a pair of pedals using a user interface device, configuring the pedals in a specific direction and position, initiating exercise by using the user interface device, monitoring a set of information related to pedaling during or after the exercise on the user interface device, receiving the parameters associated with the gear motor, the pair of pedals from the user interface device, and sensors, analyzing the parameters received from the sensors and the user interface device, and generating corrective commands based on the analysis of the received parameters. ## Claims ### Claim 1 A simulator system 100 removably mountable on a wheelchair for exercising lower limbs of a user seated thereon, the simulator system 100 comprising: a housing 101 comprising an electrical motor 102 with a first shaft 103 having a first end and a second end, wherein the first end and the second end of the first shaft horizontally extending out of the housing 101 through a pair of lateral faces 101a; a support assembly comprising: a pair of supporting members 104, each of the supporting members 104 comprising a first arm 104a with a first slot, and a second arm 104b with a second slot, wherein the first arm 104a and the second arm 104b are conjoint at a junction embodying a third slot; a first connecting arm 105 comprising a first end and a second end, wherein the first end and the second end of the first connecting arm 105 engages into the third slot present in each of the pair of supporting members 104; a second connecting arm 106 comprising a first end and a second end, wherein the first end and the second end of the second connecting arm 106 engages into the second slot present in each of the pair of supporting members 104; an elongated arm 107 with a proximal end and a distal end, the elongated arm 107 engages to the first connecting arm 105 at the distal end, and is adapted to support and slidably move the housing 101 mounted thereon along its longitudinal axis using a first rotating knob 107a present near the proximal end; a second rotating knob 108a mounted on a second shaft 108 connecting the second connecting arm 106 and a bracket 109 engaged to the first connecting arm 105, wherein the second rotating knob 108a helps adjust a tilt angle of the housing 101 attached over the elongated arm 107, and provide stability to the support assembly, when the simulator system 100 is mounted on the wheelchair 200; a pair of connecting members 110, each of the connecting members comprising a gripping assembly 110b-110d, and a vertical shaft 110a mounted on the gripping assembly 110b-110d, wherein the vertical shaft 110a of each of the pair of connecting members 110 engages into the first slot present in each of the pair of supporting members 104, and the gripping assembly 110b-110d of each of the pair of connecting members 110 engages to a base frame 202 of the wheelchair 200 for removably mounting the simulator system 100 on the wheelchair 200; a pair of pedals 111, each of the pedals 111 connected to the first end and the second end of the first shaft 103 horizontally extending out of the housing 101 through the pair of lateral faces 101a; an electric drive unit 120 configured to drive the electrical motor 102, thereby enabling the pair of pedals 111 engaged to the first shaft 103 to rotate in a specified direction; and one or more user interface devices 125 to enable the user seated on the wheelchair 200 to at least view one or more parameters associated with the electrical motor 102, and the pair of pedals 111, and change the one or more parameters associated with the electrical motor 102, and the pair of pedals 111. ### Claim 2 (depends on 1) The simulator system 100 of claim 1, wherein the electrical motor 102 is a gear motor. ### Claim 3 (depends on 1) The simulator system 100 of claim 1, wherein the first connecting arm 105 engaged to the pair of supporting members 104 by means of at least one a pair of nuts 105a, one or more washers, and one or more sleeves. ### Claim 4 (depends on 3) The simulator system 100 of claim 3, wherein the pair of nuts 105a enables the simulator system 100 to be mounted on the wheelchair 200 of varied width. ### Claim 5 (depends on 1) The simulator system 100 of claim 1, wherein the first connecting arm 105 and the second connecting arm 106 engaging the pair of supporting members 104 are configured parallelly at a suitable distance from each other. ### Claim 6 (depends on 1) The simulator system 100 of claim 1, the pair of supporting members 104 are configured parallel to each other. ### Claim 7 (depends on 1) The simulator system 100 of claim 1, wherein the first rotating knob 107a is mounted at an end of a third shaft 107b embodying a spring and housed within the elongated arm 107. ### Claim 8 (depends on 1) The simulator system 100 of claim 1, wherein the each of the pedals 111 is connected to the first end and the second end of the first shaft 103 by means of a height adjustment member 112 comprising a plurality of slots. ### Claim 9 (depends on 8) The simulator system 100 of claim 8, wherein height adjustment member 112 operationally connected to the electrical motor 102 helps the pair of pedals 111 to attain a cycling motion when the user seated on the wheelchair 200 places foot on the pair of pedals 111 and starts the simulator 100 for exercise. ### Claim 10 (depends on 1) The simulator system 100 of claim 1, wherein the electric drive unit 120 comprising: one or more sensors 121 configured to monitor the one or more parameters associated with the electrical motor 102, the pair of pedals 111; one or more power modulators configured to control the supply of power to the electric motor 102; a control unit 122 operationally coupled to the one or more user interface devices 125, the electrical motor 102, the one more sensors 121, wherein the control unit 122 is adapted to perform at least one of: receive the one or more parameters associated with the electrical motor 102, the pair of pedals 111 from the one or more user interface devices 125, and the one or more sensors 121, analyze the one or more parameters received from the one more sensors 121 and the one or more user interface devices 125, and generate one or more corrective commands based on the analysis of the one or more parameters received from the one more sensors 121, and the one or more user interface devices 125; and one or more power sources 123 electrically coupled to and adapted to power up at least one of: the electrical motor 102, the one or more sensors 121, the one or more user interface devices 125, the one or more power modulators, and the control unit 122. ### Claim 11 (depends on 1) The simulator system 100 of claim 1, wherein the one or more parameters including speed and direction of the pair of pedals 111, torque generated by the electrical motor 102, motor current, gear speed or gear change. ### Claim 12 (depends on 10) The simulator system 100 of claim 10 wherein generation of the one or more corrective commands upon analysis of the one or more parameters received from the one more sensors 121 and the one or more user interface devices 125 is based on predefined values for each of the parameters associated with the electrical motor 102, the pair of pedals 111. ### Claim 13 (depends on 1) The simulator system 100 of claim 1 further comprising one or more brakes 101b enabling the user to lock the pair of pedals 111 in a specific direction and position. ### Claim 14 (depends on 1) The simulator system 100 of claim 1 further comprising one or more handles 127 configurable in an area in front of arm rests provided on the wheelchair 200, wherein the one or more handles 127 are adapted to hold the one or more user interface devices 125 in a position so as to facilitate the user seated on the wheelchair 200 to view and change the one or more parameters associated with the electrical motor 102, and the pair of pedals 111. ### Claim 15 A method for exercising lower limbs of a user seated on a wheelchair 200, the method comprising the steps of: providing, a simulator system 100 mountable on the wheelchair 200, wherein the simulator system 100 comprising a housing 101 comprising an electrical motor 102 with a first shaft 103 having a first end and a second end, wherein the first end and the second end of the first shaft horizontally extending out of the housing 101 through a pair of lateral faces 101a; a pair of pedals 111, each of the pedals 111 connected to the first end and the second end of the first shaft 103 horizontally extending out of the housing 101 through the pair of lateral faces 101a; an electric drive unit 120 configured to drive the electrical motor 102, thereby enabling the pair of pedals 111 engaged to the first shaft 103 to rotate in a specified direction; one or more user interface devices 125 to enable the user seated on the wheelchair 200 to at least view one or more parameters associated with the electrical motor 102, and the pair of pedals 111, and change the one or more parameters associated with the electrical motor 102, and the pair of pedals 111; and a support assembly configured for removably mounting the simulator system 100 on the wheelchair 200; configuring the one or more parameters associated with the gear motor 102, and the pair of pedals 111 using the one or more user interface devices 125; configuring, the pair of pedals 111 in a specific direction and position so as to allow the user seated on the wheelchair 200 to comfortably place the limbs on the pair of pedals 111, wherein the step of configuring the pair of pedals 111 in a specific direction and position is facilitated by adjusting a tilt angle and position of the housing 101 mounted over the elongated arm 107 of the support assembly; initiating, exercise by using the one or more user interface devices 125; monitoring, a set of information related to pedaling during or after the exercise, on the one or more user interface devices 125; and providing a control unit 122 embodied within the electric drive unit 120, and operationally coupled to the one or more user interface devices 125, the gear motor 102, one more sensors 121, wherein the control unit 122 performing at least one of: receiving the one or more parameters associated with the gear motor 102, the pair of pedals 111 from the one or more user interface devices 125, and the one or more sensors 121, analyzing the one or more parameters received from the one or more sensors 121 and the one or more user interface devices 125; and generating, one or more corrective commands based on the analysis of the one or more parameters received from the one more sensors 121, and the one or more user interface devices 125. ### Claim 16 (depends on 15) The method of claim 15, wherein the support assembly comprising: a pair of supporting members 104, each of the supporting members 104 comprising a first arm 104a with a first slot, and a second arm 104b with a second slot, wherein the first arm 104a and the second arm 104b are conjoint at a junction embodying a third slot; a first connecting arm 105 comprising a first end and a second end, wherein the first end and the second end of the first connecting arm 105 engages into the third slot present in each of the pair of supporting members 104; a second connecting arm 106 comprising a first end and a second end, wherein the first end and the second end of the second connecting arm 106 engages into the second slot present in each of the pair of supporting members 104; an elongated arm 107 with a proximal end and a distal end, the elongated arm 107 engages to the first connecting arm 105 at the distal end, and is adapted to support and slidably move the housing 101 mounted thereon along its longitudinal axis using a first rotating knob 107a present near the proximal end; a second rotating knob 108a mounted on a second shaft 108 connecting the second connecting arm 106 and a bracket 109 engaged to the first connecting arm 105, wherein the second rotating knob 108a helps adjust a tilt angle of the housing 101 attached over the elongated arm 107, and provide stability to the support assembly, when the simulator system 100 is mounted on the wheelchair 200; and a pair of connecting members 110, each of the connecting members comprising a gripping assembly 110b-110d, and a vertical shaft 110a mounted on the gripping assembly 110b-110d, wherein the vertical shaft 110a of each of the pair of connecting members 110 engages into the first slot present in each of the pair of supporting members 104, and the gripping assembly 110b-110d of each of the pair of connecting members 110 engages to a base frame 202 of the wheelchair 200 for removably mounting the simulator system 100 on the wheelchair 200. ### Claim 17 (depends on 15) The method of claim 15, wherein the one or more parameters including speed and direction of the pair of pedals 111, torque generated by the electrical motor 102, motor current, output power, gear speed or gear change. ### Claim 18 (depends on 15) The method of claim 15, wherein the set of information comprising of at least one a speed associated with the pair of pedals 111, quantity of calories burnt during a exercise session, a distance travelled by pedaling, changes in body weight of the user exercising, measure heart rate, metabolic equivalent related to the exercise performed, count simulation level, pulse rate and oxygen saturation level in the user. ### Claim 19 (depends on 15) The method of claim 15, wherein generation of the one or more corrective commands upon analysis of the one or more parameters received from the one more sensors 121 and the one or more user interface devices 125 is based on predefined values for each of the parameters associated with the electrical motor 102, the pair of pedals 111. ### Claim 20 (depends on 15) The method of claim 15, wherein the electric drive unit 120 further comprising: one or more power modulators configured to control the supply of power to the electric motor 102; and one or more power sources 123 electrically coupled to and adapted to power up at least one of: the electrical motor 102, the one or more sensors 121, the one or more user interface devices 125, the one or more power modulators, and the control unit 122.