Insufflator, connector for insufflator, and insufflation apparatus

An insufflation apparatus comprising:

• an insufflator including a first pipe sleeve portion, a second pipe sleeve portion and a receptacle on which the first pipe sleeve portion and the second pipe sleeve portion are mounted;
• a first tube and a second tube configured to communicate with an inside of an abdominal cavity of a patient;
• and
• a connector for connecting the first tube and the second tube with the first pipe sleeve portion and the second pipe sleeve portion, respectively, the connector including:
• a connector body including a first end portion and a second end portion which are positioned on sides opposite to each other, the connector body being configured to be inserted into and engage the receptacle of the insufflator in a fitted state;
• a first connecting portion and a second connecting portion that are:
• (i) disposed on a first end portion side of the connector body, and (ii) connected with the first tube and the second tube, respectively;
• a first port disposed on a second end portion side of the connector body, the first port communicating with the first tube, the first port including a port surface configured to receive an external force in a direction orthogonal to an insertion direction of the connector body in the fitted state, the first port being connected with and communicating with the first pipe sleeve portion in the fitted state;
• a second port disposed on the second end portion side of the connector body, the second port communicating with the second tube, the second port including a port distal end surface configured to receive an external force in a direction parallel to the insertion direction of the connector body in the fitted state, the second port being connected with and communicating with the second pipe sleeve portion in the fitted state;
• a first sealing member providing sealing between the first port and the first pipe sleeve portion in the fitted state;
• and
• a second sealing member providing sealing between the second port and the second pipe sleeve portion in the fitted state,
• wherein:
• the first port is connected with the first pipe sleeve portion in the fitted state such that at least a part of the first port extending in a reference direction overlaps with at least a part of the first pipe sleeve portion extending in the reference direction, the reference direction being parallel to an imaginary straight line that is orthogonal to the first end portion and the second end portion, and
• the second port is connected with the second pipe sleeve portion in the fitted state such that at least part of the second port and at least part of the second pipe sleeve portion push each other in the reference direction,
• the first pipe sleeve portion includes a pipe sleeve surface configured to receive the external force in the direction orthogonal to the insertion direction of the connector body in the fitted state,
• the second pipe sleeve portion includes a pipe sleeve body including a pipe sleeve distal end surface configured to receive the external force in the direction parallel to the insertion direction of the connector body in the fitted state,
• the first sealing member is disposed in the first port such that the first sealing member is positioned between at least part of the first port and at least part of the first pipe sleeve portion which overlap with each other in the fitted state, and
• the second sealing member is:
• disposed in the second port such that the second sealing member is positioned between the port distal end surface of the second port and the pipe sleeve distal end surface of the pipe sleeve body of the second pipe sleeve portion which push each other in the fitted state, and
• elastically deformable such that, in the fitted state, the second sealing member is compressed in the direction parallel to the insertion direction of the connector and expanded in the direction orthogonal to the insertion direction of the connector to provide the sealing between the second port and the second pipe sleeve portion.