Devices and methods for anastomosis are provided. The devices can include a first and a second member of a generally hollow open configuration. The first and second members may each include a rigid part and an elastic part arranged circumferentially of the rigid part. The devices may also include a connection member for interlocking the first and second members such that anastomosis is obtained at a contact area in-between the elastic parts. The methods can include arranging an elastic part inside a tubular structure at a first end of the tubular structure, folding an edge of the first end over the elastic part, and mounting the elastic part on a rigid part, forming a first member. This may be repeated at a second end of the tubular structure, forming a second member, and the first and second members may be locked to each other by a connection member.