The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 31, 2012
Filed:
Feb. 21, 2006
Ichiro Michishita, Yokohama, JP;
Takuji Nishide, Settsu, JP;
Ichiro Michishita, Yokohama, JP;
Takuji Nishide, Settsu, JP;
Kaneka Corporation, Osaka, JP;
Abstract
The present invention provides a catheter for extraction that can efficiently extract blood flowing in coronary sinus from coronary artery through coronary vein and has the same operability as catheters used in conventional PCI. The present invention also provides a catheter for extracorporeal circulation that can lessen an introduction number of devices for blood access as little as possible and reduce further the burden to a patient, in addition to the same operability as the catheters used in the conventional PCI. The catheter for extraction is equipped with blood extracting lumen in an inside and equipped with a hub at a proximal end portion, and when a minimum sectional area to a circumferential direction of the blood extracting lumen is referred to as S1 and immersion side length is referred to as L, an equivalent diameter Dsatisfies the formula defined by D=(4×S)/Land the equivalent diameter Dis at 1.80 mm. The catheter for extracorporeal circulation also has blood extracting lumen extending from the distal end to the proximal end and blood return lumen extending from the proximal end of the catheter to a fixed length distal end.