Ancillary system having an exhaust device for surgery

1. An ancillary system for surgery, comprising:

an exhaust device comprising a tubular structure with a first end and a second end departed from the first end, and a head portion disposed at the first end, wherein a surface of the head portion has one or more vents formed thereon; and

an exhaust valve module connected to the tubular structure and configured for a substance generated during a surgical procedure to enter the tubular structure via the one or more vents and be discharged through the exhaust valve module, wherein the exhaust valve module comprises:

an exhaustion-adjustable flow channel, and the exhaustion-adjustable flow channel has a first opening directly disposed on the tubular structure of the exhaust device, a second opening configured for connecting to an evacuation device, and a third opening in communication with the first opening and the second opening, and

an evacuation controlling valve disposed between the first opening and the second opening and configured to selectively open or close the second opening of the exhaustion-adjustable flow channel to enable or disable the evacuation device,

wherein the evacuation device is disabled by the evacuation controlling valve and the third opening of the exhaustion-adjustable flow channel of the exhaust valve module remains open, such that the exhaust device is configured to operate in a normal exhausting mode,

wherein the evacuation device is enabled by the evacuation controlling valve and the third opening of the exhaustion-adjustable flow channel of the exhaust valve module is closed, such that the exhaust device is configured to operate in a strong exhausting mode to provide a first suction force,

wherein the evacuation device is enabled by the evacuation controlling valve and the third opening of the exhaustion-adjustable flow channel of the exhaust valve module remains open, such that the exhaust device is configured to operate in a weak exhausting mode to provide a second suction force, and

the first suction force is greater than the second suction force.

2. The ancillary system of claim 1 , further comprising a trocar, wherein the exhaust device is disposed in the trocar.

3. The ancillary system of claim 1 , further comprising a scalpel device, and the scalpel device comprises a blade portion and a connecting arm connected to the blade portion.

4. The ancillary system of claim 3 , wherein the connecting arm of the scalpel device is at least partially disposed inside the tubular structure of the exhaust device.

5. The ancillary system of claim 3 , wherein the first end of the tubular structure is adjacent to or aligned with a bottom of the blade portion of the scalpel device.

6. The ancillary system of claim 3 , wherein the blade portion of the scalpel device is at least partially retractable from the first end of the tubular structure.

7. The ancillary system of claim 3 , wherein the exhaust device is coupled to the scalpel device in a detachable manner.

8. The ancillary system of claim 1 , wherein the head portion has a cone-shape structure.

9. The ancillary system of claim 8 , wherein the cone-shape structure has a longitudinal axis being different than a longitudinal axis of the tubular structure.

10. The ancillary system of claim 1 , wherein the tubular structure is made of a transparent material.

11. The ancillary system of claim 1 , wherein the head portion is made of a transparent material.

12. The ancillary system of claim 1 , wherein the exhaust valve module is adjacent to the second end of the tubular structure.

13. The ancillary system of claim 1 , wherein the exhaustion-adjustable flow channel is a T-shaped flow channel.