Patent ID: 8038610

Claim:
A medical instrument introduction device for introducing a medical instrument into a living body provided with: a rigid main body provided with a lumen, a first fixing portion disposed on the main body to fix the main body on a first septate of the living body, and a second fixing portion disposed on a distal end side of the main body with respect to the first fixing portion and to fix the main body on a second septate which is different from the first septate, wherein the first fixing portion fixes the main body on the first septate by holding the first septate from both sides of the first septate, and the second fixing portion fixes the main body on the second septate by holding the second septate from both sides of the second septate, the first and second fixing portions being so spaced from one another on said rigid main body as to leave a portion of said rigid main body exposed therebetween and said main body being sufficiently rigid to maintain a substantially straight shape such that the rigid main body is capable of maintaining a constant distance between the first and second septates, and wherein the first fixing portion and the second fixing portion are slidable with respect to the rigid main body.