Thrombectomy apparatus
OwnerWolfram Schnepp-Pesch, Josef Lindenberginventors
Life of this patent
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Abstract
A method and apparatus for thrombectomy with partial dissolving by streptokinase or the like, wherein a catheter set with a sheath having two open lumens extending in parallel over most of the length of the sheath. The lumen are distal-parallel to one another and issue proximally under a finite angular alignment. The first lumen takes up virtually the entire cross-sectional area of sheath, while the second lumen is much narrower and is constructed in a widened area of the wall of the first lumen. A safety change wire is adapted to be accommodated in the second lumen.
Claims16
An apparatus for thrombectomy with partial dissolving of a thrombus by a thrombus dissolving liquid, the apparatus comprising sheath means having at least first and second open lumens extending over an entire length of the sheath means, said first and second lumens each including proximal and distal ends, said first and second lumens are distal-parallel to one another and disposed parallel to one another over most of the length of the sheath means, the proximal ends of said first and second lumens subtend a finite angle, said first lumen has a cross-sectional area taking up virtually an entire cross-sectional area of sheath means, said second lumen has a cross-sectional area narrower than the cross-sectional area of said first lumen and is located in a widened area of a wall of said sheath means, said cross-sectional areas of said first and second lumens are substantially constant over an entire length of the parallel disposed portions thereof, said second lumen is adapted to accommodate a safety change wire means, and wherein at least one first catheter means is provided, said first catheter means being dimensioned so as to be accommodated in said first lumen.
An apparatus for thrombectomy with partial dissolving of a thrombus by a thrombus dissolving liquid, the apparatus comprising sheath means having at least first and second open lumens extending over an entire length of the sheath means, said first and second lumens each including proximal and distal ends, said first and second lumens are distal-parallel to one another and disposed parallel to one another over most of the length of the sheath means, the proximal ends of said first and second lumens subtend a finite angle, said first lumen has a cross-sectional area taking up virtually an entire cross-sectional area of said sheath means, said second lumen has a cross-sectional area narrower than the cross-sectional area of said first lumen and is located in a widened area of a wall of said sheath means, said cross-sectional areas of said first and second lumens are substantially constant over an entire length of the parallel disposed portions thereof, said second lumen is adapted to accommodate a safety change wire means, and said sheath means has a wall thickness of less than 0.2 mm.
An apparatus for thrombectomy with partial dissolving a thrombus by a thrombus dissolving liquid, the apparatus comprising sheath means having at least first and second open lumens extending over an entire length of the sheath means, said first and second lumens each including proximal and distal ends, said first and second lumens are distal-parallel to one another and disposed parallel to one another over most of the length of the sheath mans, the proximal ends of said first and second lumens subtend a finite angle, said first lumen has a cross-sectional area taking up virtually an entire cross-sectional area of said sheath means, said second lumen has a cross-sectional area narrower than the cross-sectional area of said first lumen and is located in a widened area of a wall of said sheath means, said cross-sectional areas of said first and second lumens are substantially constant over an entire length of the parallel disposed portions thereof, said second lumen is adapted to accommodate a safety change wire means, wherein an internal diameter of said first lumen of said sheath means is between 8 and 12 Charriere.
Dependencies are inferred from the claim text.