Kaneka Corporation

Shizuo Ichimura

Kentaro Suzuki

Sadao Bessho

Ryogo Higashi

Mei Kojima

Provided is a medical tubular body delivering device that is less likely to kink without reducing operability. The device has an outer tube through which the medical tubular body is disposed; a guidewire insertion member provided proximal to the medical tubular body; and an inner insertion member provided in the outer tube, and the guidewire insertion member has a penetration passage; a guidewire tube is provided in the penetration passage; the inner insertion member is partially fixed to the guidewire insertion member; a protection member is provided outside a part of the inner insertion member proximal to a fixing portion; the protection member has a reduced-area section where the protection member has a cross-sectional area in a cross-section perpendicular to an axis direction decreases towards a distal end; and the protection member in the reduced-area section is biasedly located against the guidewire tube with respect to the inner insertion member.

Medical tubular body delivering device

Provided are a medical tubular body delivery device that allows frictional resistance between an outer tube and another member to be reduced and manipulation resistance during pulling of the outer tube to be reduced, thereby making it easy to handle the outer tube, and that allows indwelling of a medical tubular body to be stably performed; and a method for manufacturing the same. A device for delivering a medical tubular body into a body, the device comprising: an outer tube having a lumen in which the medical tubular body is disposed; a traction member connected to the outer tube; a traction member housing tube having a lumen into which the traction member is inserted; a guide wire tube having a lumen into which a guide wire is to be inserted; a covering tube having a lumen in which the traction member housing tube and the guide wire tube are disposed; and a protective tube having a lumen in which the covering tube is disposed, wherein the traction member housing tube and the guide wire tube are fixed to each other on a distal side with respect to a distal end of the covering tube and on a proximal side with respect to a proximal end of the outer tube, and the traction member housing tube and the guide wire tube are not fixed to each other at a portion where the covering tube exists.

Medical tubular body delivery device and method for manufacturing the same

Provided are a medical tubular body delivery device that allows frictional resistance between an outer tube and another member to be reduced. A device for delivering a medical tubular body into a body contains: an outer tube in which the medical tubular body is disposed; a traction member connected to the outer tube; a traction member housing tube into which the traction member is inserted; a wire disposed outside the traction member housing tube; a covering tube in which the traction member housing tube and the wire are disposed; and a protective tube in which the covering tube is disposed, wherein the traction member housing tube and the wire are fixed to each other between a distal end of the covering tube and a proximal end of the outer tube, and the traction member housing tube and the wire are not fixed to each other at the covering tube.

A tubular medical instrument which can be easily ejected from a transfer device and accurately placed in a case the tubular medical instrument is released from the transfer device and placed at an affected area is provided. A tubular medical instrument includes ends portions, and a central portion, wherein each of the end portions is a region including one axial end of the tubular medical instrument and having a length of 10% with respect to an axial length Lof the tubular medical instrument, the central portion is a region including an axial center of the tubular medical instrument and having a length of 10% with respect to the axial length Lof the tubular medical instrument, and a ratio (difference V/difference W) is 3 or more.

Growing community of inventors

Settsu, Japan

Shizuo Ichimura