Medical device

A medical device, comprising:

• an outer tube;
• an operation portion at least partially located inside the outer tube;
• and
• a control portion having a channel communicated with the outer tube along a first direction, the control portion including a control module,
• wherein the control module includes:
• at least one suction control portion having a stopping unit facing the channel, the suction control portion is configured to move along a second direction different from the first direction;
• a suction port actuator located opposite to the suction control portion with the channel therebetween and driven by the suction control portion;
• and
• a switching unit configured to be driven by releasing the suction control portion so as to switch a working status of the operation portion,
• wherein when the suction control portion is located at a first position, the control module is configured to stop the suction port actuator creating suction in the channel and the switching unit is configured to stop a movement of the operation portion;
• when the suction control portion is located at a second position, the control module is configured to enable the suction port actuator to create suction in the channel;
• and
• when the suction control portion is located at a third position, the control module is configured to enable the suction port actuator to create suction in the channel and to enable the switching unit to activate the operation portion, and the stopping unit at least partially extends into the channel;
• wherein the stopping unit has a baffle, a recess portion is formed on a backside of the baffle,
• wherein when the suction control portion is located at the first position, the stopping unit at least partially extends into the channel and switches between a first state and a second state by rotating the suction control portion,
• wherein the control portion has a first handle end and a second handle end opposite to each other,
• wherein in the first state, the baffle is configured to block at least a portion of the channel, and
• wherein in the second state, a space surrounded by the recess portion at least partially connects the channel located at two sides of the stopping unit.