Sterile drape, instrument attachment set for attaching surgical instrument, and method for attaching surgical instrument to robot arm

1. A sterile drape to be attached to an attachment portion of a robot arm used in a robotic surgical system, via an adapter for attachment of a surgical instrument, the sterile drape comprising:

a flexible film member including a first opening and a second opening and configured to cover the robot arm received through the second opening; and

a resin molded member configured to close the first opening of the flexible film member,

wherein the resin molded member includes: an upper surface portion having a shape and a size fitted to an attachment surface of the attachment portion; a side surface portion extending downward from the upper surface portion; and a projection which projects outward from a lower edge of the side surface portion and to which the flexible film member is welded, the upper surface portion, the side surface portion, and the projection being integrally formed,

wherein the upper surface portion has a plurality of holes at positions corresponding to a plurality of rotating drive sections and a plurality of engagement projecting portions, the rotating drive sections and the engagement projecting portions being formed in the attachment portion, and

wherein the adapter includes a plurality of rotated members which correspond to the plurality of rotating drive sections, and a plurality of engagement recesses which engage with the plurality of engagement projecting portions; wherein the plurality of holes include a shared hole which corresponds to both at least one of the plurality of rotating drive sections and at least one of the plurality of engagement projecting portions.

2. The sterile drape of claim 1 , wherein the side surface portion of the resin molded member has a size and a shape corresponding to an attachment side surface extending downward from the attachment surface.

3. The sterile drape of claim 1 , wherein the resin molded member has a circular truncated cone shape.

4. The sterile drape of claim 1 , wherein a length of the side surface portion along a vertical direction is one sixth (⅙) or more and a half (½) or less of a maximum length of the upper surface portion in a horizontal direction.

5. The sterile drape of claim 1 , wherein the number of the plurality of holes is less than a total number of the plurality of rotating drive sections and the plurality of engagement projecting portions.

6. The sterile drape of claim 5 , wherein the plurality of holes include a dedicated hole which corresponds to one of the plurality of rotating drive sections or one of the plurality of engagement projecting portions.

7. The sterile drape of claim 1 , wherein the flexible film member is attached to a proximal end portion of the robot arm by an attachment tool at a position of the flexible film member closer to the second opening than to the first opening.

8. An instrument attachment set for attaching a surgical instrument to an attachment portion of a robot arm in a robotic surgical system, the instrument attachment set comprising:

an adapter including a plurality of rotated members which correspond to a plurality of rotating drive sections provided in the attachment portion, and a plurality of engagement recesses which correspond to a plurality of engagement projecting portions provided in the attachment portion; and

a sterile drape including: a flexible film member including a first opening and a second opening and configured to cover the robot arm received through the second opening; and a resin molded member configured to close the first opening of the flexible film member,

wherein the resin molded member includes: an upper surface portion having a shape and a size fitted to an attachment surface of the attachment portion; a side surface portion extending downward from the upper surface portion; and a projection which projects outward from a lower edge of the side surface portion and to which the flexible film member is welded, the upper surface portion, the side surface portion, and the projection being integrally formed, and

wherein the upper surface portion has a plurality of holes which are disposed at positions that allow engagement between the plurality of rotating drive sections and the plurality of rotated members and engagement between the plurality of engagement projecting portions and the plurality of engagement recesses; wherein the plurality of holes include: a shared hole which corresponds to both of at least one of the plurality of rotating drive sections and at least one of the plurality of engagement projecting portions; and a dedicated hole which corresponds to one of the plurality of rotating drive sections or one of the plurality of engagement projecting portions.

9. The instrument attachment set of claim 8 , wherein the side surface portion of the resin molded member has a size and a shape corresponding to an attachment side surface extending downward from the attachment surface.

10. The instrument attachment set of claim 8 , wherein the resin molded member has a circular truncated cone shape.

11. The instrument attachment set of claim 8 , wherein a length of the side surface portion along a vertical direction is one sixth (⅙) or more and a half (½) or less of a maximum length of the upper surface portion in a horizontal direction.

12. The instrument attachment set of claim 8 , wherein the number of the plurality of holes is less than a total number of the plurality of rotating drive sections and the plurality of engagement projecting portions.