Provided is a wheelchair that can be operated easily with either a right or left hand. The wheelchair is provided with; right and left handrims; a rotary shaft for transmitting a rotational force generated by a handrim on one side to a wheel on the opposite side via a drive mechanism; and a wheel hub for transmitting the rotational force generated by the handrim on the one side to the wheel on the same side via the drive mechanism, wherein the drive mechanism includes two pairs of right and left sensors respectively disposed on an outer surface of each of the handrims, a first non-excitation electromagnetic clutch for transmitting the rotational force to the right wheel, a second non-excitation electromagnetic clutch for transmitting the rotational force to the wheel on the opposite side, and a third non-excitation electromagnetic clutch for transmitting the rotational force to the left wheel.

A surgical instrument system comprising a handle assembly is disclosed. The handle assembly comprises an actuation trigger comprising a curved proximal portion and a curved cylinder surrounding the curved proximal portion of the actuation trigger. The curved cylinder comprises an electroactive polymer. The surgical instrument system comprises an actuation rod which is configured to transmit an actuation force and a sensor system which is configured to detect the magnitude of the actuation force. The electroactive polymer is responsive to the actuation force and provides feedback to a user of the surgical instrument system.

The present invention relates to a two-speed transmission for an electric driving vehicle and the two-speed transmission for an electric vehicle has only one actuator. The transmission comprises a planetary gear mechanism (12), an elastic body (44), an armature (26) to integrally rotate with an input axis, an electromagnetic coil (46) and a multi-plate friction clutch (30). A ring gear (20) is fixed to a housing. The armature (26) comprises clutch projection portions (26-1). A dog clutch is constituted by the clutch projection portions (26-1) and recess portions (18-2) of a sun gear (18). When the electromagnetic coil (46) is not electrically energized, the dog clutch is engaged. The rotation of the input axis is reduced and is transmitted to an output axis via the sun gear (18) and a carrier (16). When the electromagnetic coil (46) is electrically energized, the armature (26) is displaced against elastic force, the dog clutch becomes a non-engaging state, a multi-plate friction clutch (30) becomes an engaging state by pressing flange portions (26-4) of the armature (26) and the rotation of the input axis is transmitted to the output axis with a one-to-one relationship. The transmission can comprise a one-way clutch to prevent torque interruption when switching the gear ratio.

A surgical instrument comprising an end effector is disclosed. The end effector comprises a surgical dissector.

A modular surgical instrument is disclosed. The modular surgical instrument comprises a control interface, a shaft extending from the control interface, an end effector extending from said shaft, and a control circuit. The control circuit is configured to sense the electrical potential applied to the modular surgical instrument, determine if the sensed electrical potential is above a predetermined threshold, and adjust the operation of the modular surgical instrument when the sensed electrical potential exceeds the predetermined threshold.

A combination starter-generator device is provided for a work vehicle having an engine. The starter-generator device includes an electric machine and a gear set configured to receive rotational input from the electric machine and from the engine and to couple the electric machine and the engine in a first power flow direction and a second power flow direction. The gear set is configured to operate a first, second, or third gear ratio in the first power flow direction and a fourth gear ratio in the second power flow direction. At least one clutch is selectively coupled to the gear set to effect the first, second, and third gear ratios in the first power flow direction and the fourth gear ratio in the second power flow direction. A magnetic cam assembly is configured to shift the at least one clutch from a disengaged position into an engaged position.

A combination starter-generator device is provided for a work vehicle having an engine. The starter-generator device includes an electric machine and a gear set configured to receive rotational input from the electric machine and from the engine and to couple the electric machine and the engine in a first power flow direction and a second power flow direction. The gear set is configured to operate a first, second, or third gear ratio in the first power flow direction and a fourth gear ratio in the second power flow direction. At least one clutch is selectively coupled to the gear set to effect the first, second, and third gear ratios in the first power flow direction and the fourth gear ratio in the second power flow direction. A magnetic cam assembly is configured to shift the at least one clutch from a disengaged position into an engaged position.

A seat assembly, a multi-passenger vehicle, and a method for attaching seats to a floor of a vehicle that employ an electromagnetic coupling between the seats and the floor. A power supply supplies electricity to the electromagnetic coupling to secure the seats to the floor and is turned off to release the seats from the floor without tools or workers bending down below the seats to remove coupling devices. The seats can therefore be readily repositioned or rearranged to adjust the spacing between the seats. Resident induction coupling is included between the floor of the vehicle and the seats to provide wireless power to the seats.

A seat assembly, a multi-passenger vehicle, and a method for attaching seats to a floor of a vehicle that employ an electromagnetic coupling between the seats and the floor. A power supply supplies electricity to the electromagnetic coupling to secure the seats to the floor and is turned off to release the seats from the floor without tools or workers bending down below the seats to remove coupling devices. The seats can therefore be readily repositioned or rearranged to adjust the spacing between the seats. Resident induction coupling is included between the floor of the vehicle and the seats to provide wireless power to the seats.

A surgical clip applier comprising a rotatable clip cartridge is disclosed. The surgical clip applier comprises a lockout that at least locks out the crimping drive of the surgical clip applier when the rotatable clip cartridge is empty.