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US 11,229,451 B2Granted
Thrombectomy catheter and methods of use
OwnerEric Raul Guerra, Xochitl Brahms Guerra +1inventors
InventorsEric Raul Guerra, Xochitl Brahms Guerra, Mayra Paulina Guerra
Life of this patent
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Abstract
A thrombectomy catheter with a catheter or delivery sheath having a dual lumen extending therethrough, the catheter having a proximal segment and a distal segment and a linear section coupled therebetween, the distal segment configured as a loop, a port or aperture formed therein said dual lumen of said catheter, the port positioned proximate the distal segment, and a guidewire configured to longitudinally traverse therethrough one of the dual lumen of the catheter, an aspiration device connected thereto one of the dual lumen and configured to create a vacuum therein the catheter and the loop to extract a biomaterial.
Claims22
A remotely operated surgical device to traverse within a patient's vessel to a thrombus located therein, said surgical device comprising:
- a flexible positioning instrument having an elongated catheter with a dual lumen bore therein extending from a first catheter end to a second catheter end, said dual lumen bore having a first lumen and a second lumen, and a flexible pigtail extending therefrom said second catheter end, said first lumen extends therethrough said elongated catheter and said flexible pigtail configured as a loop having a pigtail end that loops back to a position proximate said second catheter end, said pigtail end having a guidewire exit aperture, said second lumen extends therethrough said elongated catheter from said first catheter end therethrough said second catheter end to an instrument exit aperture proximate said second catheter end;
- a guidewire extendable therethrough said first lumen of said elongated catheter and said flexible pigtail, and extendable therefrom said guidewire exit aperture, said guidewire extends through said flexible pigtail to straighten said flexible pigtail upon passage therethrough to enable said second catheter end and said flexible pigtail to traverse within the patient's vessel to the thrombus;
- a retractable instrument having a proximal member and a distal member coupled to said proximal member, said distal member having a deformable circular rim and a barrier membrane affixed thereto, said deformable circular rim extendable therethrough said instrument exit aperture to expand said deformable circular rim to deploy said barrier membrane, wherein rotation of said first catheter end of said elongated catheter rotates said flexible pigtail, said flexible pigtail rotates said deformable circular rim and said barrier membrane by contact with said flexible pigtail to capture the thrombus therein said barrier membrane;
- and
- an aspiration device connected thereto said first lumen and configured to create a vacuum therein said first lumen of said elongated catheter and said flexible pigtail.
2 more elements
A method for removing a thrombus from a patient's vessel comprising the steps of:
- providing a hand operated surgical device having a flexible positioning instrument, said flexible positioning instrument having an elongated catheter with a dual lumen bore therein extending from a first catheter end to a second catheter end, said dual lumen bore having a first lumen and a second lumen, and a flexible pigtail extending therefrom said second catheter end, said first lumen extends therethrough said elongated catheter and said flexible pigtail configured as a loop having a pigtail end that loops back to a position proximate said second catheter end, said pigtail end having a guidewire exit aperture, said second lumen extends therethrough said elongated catheter from said first catheter end therethrough said second catheter end to an instrument exit aperture proximate said second catheter end, a guidewire extendable therethrough said first lumen of said elongated catheter and said flexible pigtail and extendable therefrom said guidewire exit aperture, said guidewire extends through said flexible pigtail to straighten said flexible pigtail upon passage therethrough to enable said second catheter end and said flexible pigtail to traverse within the patient's vessel to the thrombus, a retractable instrument having a proximal member and a distal member coupled to said proximal member, said distal member having a deformable circular rim and a barrier membrane affixed thereto, said deformable circular rim extendable therethrough said instrument exit aperture to expand said deformable circular rim to deploy said barrier membrane, wherein rotation of said first catheter end of said elongated catheter rotates said flexible pigtail, said flexible pigtail rotates said deformable circular rim and said barrier membrane by contact with said flexible pigtail to break up capture the thrombus therein said barrier membrane and an aspiration device connected thereto said first lumen and configured to create a vacuum therein said first lumen of said elongated catheter and said flexible pigtail;
- maneuvering said operated surgical device therethrough the patient's vessel;
- positioning said flexible pigtail proximate the thrombus;
- aspirating said aspiration device;
- and
- collecting the thrombus therein said first lumen.
3 more elements
Dependencies are inferred from the claim text.