METHODS AND SYSTEMS FOR TREATMENT OF ACUTE ISCHEMIC STROKE
First Claim
1. A suction catheter system comprising:
- a guide catheter comprising a tubular shaft with a central lumen having an inner diameter, a proximal end and a distal opening, and a proximal section operably connected with the proximal end of the tubular shaft and having fittings that connect to a suction device; and
a suction extension comprising a proximal portion, a suction tip comprising a distal opening and extending from the proximal portion in a distal direction, and a control structure connecting the proximal portion with the proximal section of the guide catheter, the suction tip having a distal inner diameter that is between about 0.035″ and
about 0.095″ and
the central lumen inner diameter is between about 0.065″ and
about 0.120″
, wherein the proximal portion is configured to slide within the central lumen of the tubular shaft to change the relative position of the proximal portion within the central lumen and provide for at least a portion of the narrow diameter suction extension to extend outward from the distal opening of the tubular shaft at appropriate configurations of the proximal portion, wherein an effective seal is formed by a tight fit between the proximal portion and the central lumen of the guide catheter and wherein the suction extension has a length from about 10 centimeters (cm) to about 25 centimeters (cm),wherein a suction lumen is formed extending from the fitting configured to connect to the suction device through a portion of the central lumen, the proximal portion and the suction tip to a distal opening.
1 Assignment
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Accused Products
Abstract
A system of devices for treating an artery includes an arterial access sheath adapted to introduce an interventional catheter into an artery and an elongated dilator positionable within the internal lumen of the sheath body. The system also includes a catheter formed of an elongated catheter body sized and shaped to be introduced via a carotid artery access site into a common carotid artery through the internal lumen of the arterial access sheath. The catheter has an overall length and a distal most section length such that the distal most section can be positioned in an intracranial artery and at least a portion of the proximal most section is positioned in the common carotid artery during use.
75 Citations
14 Claims
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1. A suction catheter system comprising:
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a guide catheter comprising a tubular shaft with a central lumen having an inner diameter, a proximal end and a distal opening, and a proximal section operably connected with the proximal end of the tubular shaft and having fittings that connect to a suction device; and a suction extension comprising a proximal portion, a suction tip comprising a distal opening and extending from the proximal portion in a distal direction, and a control structure connecting the proximal portion with the proximal section of the guide catheter, the suction tip having a distal inner diameter that is between about 0.035″ and
about 0.095″ and
the central lumen inner diameter is between about 0.065″ and
about 0.120″
, wherein the proximal portion is configured to slide within the central lumen of the tubular shaft to change the relative position of the proximal portion within the central lumen and provide for at least a portion of the narrow diameter suction extension to extend outward from the distal opening of the tubular shaft at appropriate configurations of the proximal portion, wherein an effective seal is formed by a tight fit between the proximal portion and the central lumen of the guide catheter and wherein the suction extension has a length from about 10 centimeters (cm) to about 25 centimeters (cm),wherein a suction lumen is formed extending from the fitting configured to connect to the suction device through a portion of the central lumen, the proximal portion and the suction tip to a distal opening. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for performing a medical procedure in a bodily vessel using a suction catheter system comprising a guide catheter and a suction extension slidably engaged with the guide catheter, the suction extension comprising a proximal portion configured to remain in a central lumen of the guide catheter and a suction tip extending in a distal direction from the proximal portion, the method comprising:
- p1 tracking the suction tip to a desired location within a vessel by sliding the suction extension relative to the guide catheter.
- View Dependent Claims (13, 14)
Specification