Robotically-controlled motorized surgical instrument
First Claim
Patent Images
1. A robotically-controlled surgical instrument system comprising:
- an end effector comprising a moveable cutting instrument;
an electric motor communicating with said end effector for actuating the cutting instrument;
a motor control circuit for controlling the motor, wherein the motor control circuit comprises;
a robotic system operably communicating with said electric motor, the robotic system comprising a power supply for supplying power to the electric motor;
a charge accumulator device; and
a switching circuit communicating with the robotic system and the charge accumulator device for (i) temporarily connecting the charge accumulator device to the robotic system not in series with the power supply to charge the charge accumulator device, and (ii) selectively connecting the charge accumulator device in series between the motor and the robotic system to provide additional power to the motor.
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Abstract
A surgical cutting and fastening instrument that is motorized and configured for operation in connection with a robotic system. The instrument comprises in one embodiment a charge accumulator device, separate from a battery, that provides additional power to the motor under certain conditions. In addition, the motor may comprise multiple windings.
3291 Citations
18 Claims
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1. A robotically-controlled surgical instrument system comprising:
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an end effector comprising a moveable cutting instrument; an electric motor communicating with said end effector for actuating the cutting instrument; a motor control circuit for controlling the motor, wherein the motor control circuit comprises; a robotic system operably communicating with said electric motor, the robotic system comprising a power supply for supplying power to the electric motor; a charge accumulator device; and a switching circuit communicating with the robotic system and the charge accumulator device for (i) temporarily connecting the charge accumulator device to the robotic system not in series with the power supply to charge the charge accumulator device, and (ii) selectively connecting the charge accumulator device in series between the motor and the robotic system to provide additional power to the motor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A surgical instrument system comprising:
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a robotic system; an end effector coupled to a portion of said robotic system, said end effector comprising a moveable cutting instrument; an electric motor for actuating the cutting instrument, wherein the motor comprises at least two windings; and a motor control circuit connected to the motor, the motor control circuit having a first configuration where the at least two motor windings are connected in series and a second configuration where the at least two motor windings are connected in parallel. - View Dependent Claims (12, 13, 14)
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15. A surgical instrument system comprising:
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an end effector operably coupled to a robotic system, said end effector comprising a moveable cutting instrument; an electric motor for actuating the cutting instrument; a removable battery pack within said robotic system for powering the motor, wherein the battery pack comprises a plurality of battery cells, wherein the plurality of battery cells comprises a first plurality of series-connected battery cells and a second plurality of series-connected battery cells; a battery cell connector, separate from the battery pack and in mechanical communication with the battery pack, that connects the battery pack to the surgical instrument system and connects in series the first plurality of series-connected battery cells to the second plurality of series-connected battery cells when the battery pack is connected to the surgical instrument system, wherein the first plurality of series-connected battery cells and the second plurality of series-connected battery cells are not connected in series prior to connection to the surgical instrument system; and a switch electrically connected to the battery pack, wherein the switch has a first position in which the first plurality of series-connected battery cells and the second plurality of series-connected battery cells are electrically coupled to power the electric motor and a second position in which less than all of the first plurality of series-connected battery cells and the second plurality of series-connected battery cells are electrically coupled to power the electric motor. - View Dependent Claims (16, 17, 18)
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Specification