Patent ID: 11944280
Assignee: MEDICAROID CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 6:
7. An adapter for detachably connecting a surgical instrument to a robot arm of a robotic surgical system, the adapter comprising:
a base including a first surface to be opposed to and attached to an attachment portion of the robot arm, a second surface different from the first surface, and recesses formed in the first surface, wherein engagement projecting portions projected from the attachment portion of the robot arm are accommodated in the recesses of the base in a state where the first surface of the base of the adapter is attached to the attachment portion of the robot arm;
one or more drive power transmission members each of which is rotatably provided in the base such that each drive power transmission member is rotatable about a rotational axis thereof to transmit rotation of a corresponding driving member provided in the robot arm, wherein the rotational axis is perpendicular to the first surface;
an engagement member disposed in the base and movable linearly in a direction perpendicular to the rotational axis between an advanced position where engagement portions of the engagement member are engaged with the engagement projecting portions that are inserted in the recesses respectively and a retracted position where the engagement portions of the engagement member are disengaged from the engagement projecting portions that are inserted in the recesses respectively;
a biasing member which biases the engagement member in a direction from the retracted position to the advanced position; and
an operating member to be operated to move the engagement member to the retracted position against a biasing force of the biasing member,
wherein the engagement member is integrally formed with the engagement portions thereof, and
the engagement member is configured such that each of the engagement portions has a thickness which gradually decreases toward a distal end of the engagement portion.