Everted sheath thrombectomy device
AssigneeCook Incorporated
InventorsAlexandra E. Jantzen, Fred T. Parker
Life of this patent
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Abstract
A medical device for removing a thrombus includes an outer sheath and an inner catheter. The inner catheter is disposed within the inner lumen of the outer sheath. The device also includes a rollsock which is everted upon itself and connected to the distal ends of the outer sheath and inner catheter. A scraping device is attached to the outer surface of the rollsock, such that when the outer sheath is moved relative to the inner catheter the scraping device is exposed to an inner surface of a body vessel.
Claims20
A medical device comprising:
- an outer sheath having a distal end and an inner lumen;
- an inner catheter having a distal end and an inner lumen, wherein said inner catheter is disposed within said inner lumen of said outer sheath;
- a rollsock with a first end and a second end and an outer surface;
- said distal end of said outer sheath connected to said first end of said rollsock;
- said distal end of said inner catheter connected to said second end of said rollsock;
- said rollsock everted upon itself;
- a scraping device attached to said outer surface of said rollsock;
- wherein said outer sheath may be moved relative to said inner catheter such that said scraping device is exposed to an inner surface of a body vessel.
A medical device comprising:
- an outer sheath having a distal end and an inner lumen;
- an inner catheter having a distal end and an inner lumen, wherein said inner catheter is disposed within said inner lumen of said outer sheath;
- a rollsock with a first end and a second end, and an outer surface and an everted portion;
- said distal end of said outer sheath connected to said first end of said rollsock;
- said distal end of said inner catheter connected to said second end of said rollsock;
- said rollsock everted upon itself;
- a scraping device attached to said outer surface of said rollsock;
- wherein said outer sheath may be moved relative to said inner catheter such that said scraping device is exposed to an inner surface of a body vessel;
- said rollsock composed of a plurality of separated sections;
- said separated sections at least partially disposed within said everted portion of said outer surface;
- and an outwardly oriented actuator disposed within an annular space between said outer sheath and said inner catheter and within said everted portion of said rollsock, said outwardly oriented actuator having a distal portion, such that when said outwardly oriented actuator is slidably positioned such that said distal portion of said outwardly oriented actuator is disposed outside said distal end of said outer sheath, said outwardly oriented actuator urges said outer portion of said rollsock toward said inner surface of a body vessel.
The medical device of claim 12 wherein said scraping device is selected from the group consisting of a plurality of coils, a plurality of barbs, and a plurality of cut coils.
Dependencies are inferred from the claim text.