Patent ID: 8225794
Filing Date: 2012-07-24
Classification: A61B,A61M

Abstract:
1. An over-tube which guides a device having an insertion section to be inserted into a body of a patient, when inserting the insertion section into or retracting the insertion section from the body of the patient, the over-tube comprising: a distal tip opening configured to be capable of the device being protruded therefrom; a gas-supplying port which is provided on a circumference of a proximal end side of the over-tube; and a communicating port which is formed on a circumference of an insertion section of the over-tube, is positioned at a more proximal end side than the distal tip opening and a more distal end side than the gas-supplying port, and supplies a gas into a trachea of the patient, second sealing members provided with the over-tube at each of a more distal end side than the communicating portion and a more proximal end side than the gas-supplying port, and fixed with respect to the over-tube wherein the over-tube is configured to be capable of forming a gas-supplying passage between an inner face of the over-tube and the insertion section of the device when the device is inserted into the over-tube; the second sealing members are configured to be capable of sealing the gas-supplying passage between an over-tube inner face and the outer face of the device when the device is inserted into the over-tube; the gas-supplying passage communicates with the gas-supplying port and the communicating port; a gas from the gas-supplying port is supplied into the trachea of the patient while passing through the gas-supplying passage and the communicating port; and a first sealing member which secures an air passage for communicating the gas-supplying passage and the trachea of the patient via the communicating port by sealing between a body wall of the patient and the communicating port, is provided on an outer face of the over-tube.