URETERAL AND BLADDER CATHETERS AND METHODS FOR INDUCING NEGATIVE PRESSURE TO INCREASE RENAL PERFUSION

• Main Authors: JACOB L UPPERCO, PATRICK WILLIAM STRANE, JOHN R ERBEY II, LANCE MICHAEL BLACK, MICHAEL ALLEN FISHER
• Format: Patent
• Language: English; Japanese
• Published: 19.07.2018
• Subjects: BANDAGES, DRESSINGS OR ABSORBENT PADS; DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FOMENTATION; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PROSTHESES; TREATMENT OR PROTECTION OF EYES OR EARS

PROBLEM TO BE SOLVED: To provide ureteral and bladder catheters and methods for inducing negative pressure to increase renal perfusion.SOLUTION: Ureteral catheters 112, 114 and assemblies 100 include a drainage lumen 124 including a proximal portion 128 to be positioned in at least a portion of a patient's urethra 12 and a distal portion 118 to be positioned in a patient's ureter 6, 8 and/or kidney. The distal portion includes a coiled retention portion 130 including at least a first coil having a first diameter and a second coil having a second diameter, the first diameter being less than the second diameter. Alternatively, the retention portion extends radially outwardly from a portion of the distal end of the drainage lumen portion, and includes a proximal end having a first diameter, a distal end having a second diameter, and a wall and/or surface extending therebetween; when deployed, the retention portion has the second diameter greater than the first diameter. Alternatively, the retention portion includes a plurality of drainage tubes.SELECTED DRAWING: Figure 1 【課題】負圧を誘発し腎灌流を増加させる尿管および膀胱カテーテルおよび方法を提供する。【解決手段】尿管カテーテル１１２，１１４およびアセンブリ１００は、患者の尿道１２の少なくとも一部分内に位置付けられる近位部分１２８および患者の尿管６，８および／または腎臓内に位置付けられる遠位部分１１８を含む、排出管腔１２４を含み、遠位部分は、少なくとも第１の直径を有する第１のコイルおよび第２の直径を有する第２のコイルを含む、コイル状保定部分１３０を含み、第１の直径は、第２の直径未満である、または保定部分では、排出管腔部分の遠位端の部分から半径方向外向きに延在し、保定部分は、第１の直径を有する近位端、第２の直径を有する遠位端、およびその間に延在する壁および／または表面を含み、保定部分は、展開されると、第１の直径を上回る第２の直径を有する、または保定部分は、複数の排出管を含む。【選択図】図１