Publication NumberUS 8522786
Assignees
  • National University Corporation Okayama University
Filing StatusIssued Patent
US PAIR StatusPatented Case
US PAIR Status Date2013-08-14
Application Number11/547421
AvailabilityUnknown
Filing Date2005-03-03
Publication Date2013-09-03

Abstract

A brain cooling apparatus includes a tube body 2 which can maintain an airway in the respiratory tract of a living body; a pharyngeal cuff 5 which is provided in the peripheral part of this tube body 2 and can store a cooled fluid; and an injection and discharge portion 6 which can inject and discharge a fluid into and from this pharyngeal cuff 5, in which the pharyngeal cuff 5 is flexible enough to inflate and deflate when a fluid is injected and discharged, and when a fluid is injected in a state where an airway in the respiratory tract of a living body is maintained by the tube body 2, the inflated pharyngeal cuff adheres closely to the pharyngeal part T of the living body.

Claims

  • 1. A brain cooling apparatus, comprising: a tube-shaped member which is orally or nasally inserted so that an airway is maintained in the respiratory tract of living body; a storage portion which is attached to the peripheral part of the tube-shaped member and stores a cooled fluid; an injection and discharge portion which injects and discharges a fluid into and from the storage portion; and a cuff attached to the peripheral part of a front end of the tube-shaped member, wherein the storage portion and the cuff are flexible enough to inflate and deflate when a fluid is injected and discharged, and are such that when a fluid is injected, the cuff is configured to adhere closely to a peripheral part of an opening part of a trachea such that an airway in the respiratory tract of living body is maintained by the tube-shaped member, and the inflated storage portion is configured to adhere closely to the pharyngeal part of the living body; wherein the cuff is configured to inflate by storing a fluid that is injected from the injection and discharge portion; and wherein the storage portion is connected to the cuff so that the storage portion receives a fluid which is injected into the cuff, and extends from the cuff toward the side of the basic-end part of the tube-shaped member, along the axial direction of the tube-shaped member.
  • 2. The brain cooling apparatus according to claim 1, wherein the storage portion surrounds the peripheral part of the tube-shaped member in the peripheral directions thereof.
  • 3. The brain cooling apparatus according to claim 2, wherein: a flexible tube is placed on an outer surface of the tube-shaped member; the storage portion is formed by joining the flexible tube to the peripheral surface of the tube-shaped member along the peripheral directions thereof, in two parts in the longitudinal directions; and between these joint parts, a fluid is stored between the flexible tube and the tube-shaped member.
  • 4. The brain cooling apparatus according to claim 1, wherein the tube-shaped member is a tube body of a laryngeal mask, and the front-end part thereof is orally inserted up to the branching part of the esophagus and trachea of a living body.
  • 5. A fluid injection apparatus which injects a fluid into the brain cooling apparatus according to claim 1, comprising: a discharge portion which is attached to the injection and discharge portion; a fluid storage portion which stores a fluid that is discharged from the discharge portion; and a cooling portion which cools a fluid that is stored in the fluid storage portion.
  • 6. The fluid injection apparatus according to claim 5, wherein the cooling portion is disposed to surround the outside of the fluid storage portion, includes a refrigerant storage portion which fills up with a refrigerant, and cools a fluid by transferring the cold energy of the refrigerant to the fluid storage portion.
  • 7. The brain cooling apparatus according to claim 2, wherein the tube-shaped member is a tube body of a laryngeal mask, and the front-end part thereof is orally inserted up to the branching part of the esophagus and trachea of a living body.
  • 8. The brain cooling apparatus according to claim 3, wherein the tube-shaped member is a tube body of a laryngeal mask, and the front-end part thereof is orally inserted up to the branching part of the esophagus and trachea of a living body.
  • 9. A fluid injection apparatus which injects a fluid into the brain cooling apparatus according to claim 2, comprising: a discharge portion which is attached to the injection and discharge portion; a fluid storage portion which stores a fluid that is discharged from the discharge portion; and a cooling portion which cools a fluid that is stored in the fluid storage portion.