Rapid exchange vascular device for emboli and thrombus removal and methods of use
First Claim
1. Apparatus suitable for rapid delivery for filtering emboli or performing thrombectomy or embolectomy comprising:
- an elongated member having a distal region;
a support hoop attached to the distal region;
a blood permeable sac affixed to the support hoop so that the support hoop forms a mouth of the blood permeable sac;
a nose cone disposed on the distal region of the elongated member distal to the support hoop;
a delivery sheath having an exterior surface, a distal end, a first lumen for accepting the elongated member, support hoop and blood permeable sac; and
a guide wire in communication with the delivery sheath.
1 Assignment
0 Petitions
Accused Products
Abstract
Apparatus and methods are provided for use in filtering emboli from a vessel and performing thrombectomy and embolectomy, wherein a vascular device comprises a support hoop having an articulation region connected near a distal end of a guide wire, and a blood permeable sac affixed to the support hoop, and a delivery sheath that permits the vascular device to be deployed in a “rapid exchange” mode. The articulation region comprises a reduced thickness region of the support hoop that prevents kinks from forming in the support hoop when the apparatus is contracted to its delivery state, and curved regions that close the mouth of the sac to prevent material escaping from the sac when the apparatus is collapsed for removal.
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Citations
35 Claims
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1. Apparatus suitable for rapid delivery for filtering emboli or performing thrombectomy or embolectomy comprising:
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an elongated member having a distal region;
a support hoop attached to the distal region;
a blood permeable sac affixed to the support hoop so that the support hoop forms a mouth of the blood permeable sac;
a nose cone disposed on the distal region of the elongated member distal to the support hoop;
a delivery sheath having an exterior surface, a distal end, a first lumen for accepting the elongated member, support hoop and blood permeable sac; and
a guide wire in communication with the delivery sheath. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of trapping emboli or thrombus during a medical procedure, the method comprising:
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providing apparatus comprising an elongated member, a support hoop directly connected to the elongated member, and a blood permeable sac affixed to the support hoop so that the support hoop forms a mouth of the blood permeable sac;
providing a delivery sheath having a distal endface, an exterior surface, a first lumen, and a second lumen;
positioning the apparatus in a contracted delivery state within the first lumen;
providing a guide wire having proximal and distal ends;
advancing a distal end of the guide wire to a desired position in a patient'"'"'s vessel;
loading the delivery sheath on the proximal end of the guide wire via the second lumen;
advancing the delivery sheath to a desired location within a patient'"'"'s vessel;
withdrawing the guide wire from the patient'"'"'s vessel; and
withdrawing the delivery sheath to expand the apparatus to a deployed state wherein the support hoop seals against the vessel wall. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
providing an interventional device having a guide wire lumen;
percutaneously and transluminally advancing the interventional device along the elongated member to position the interventional device within the patient'"'"'s vessel at a location proximal of the apparatus;
performing a medical procedure, the apparatus catching emboli released while the medical procedure is being performed;
retracting the apparatus into a collapsed configuration within the guide wire lumen of the interventional device; and
removing the interventional device and apparatus from the patient'"'"'s vessel.
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18. The method of claim 17, wherein the support hoop of the apparatus includes an articulation region, and retracting the apparatus within the guide wire lumen comprises folding the support hoop at the articulation region to close the mouth of the blood permeable sac.
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19. The method of claim 15, wherein providing a delivery sheath having a second lumen further comprises the second lumen extending between an opening in the distal endface and a skive disposed proximally of the distal endface.
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20. The method of claim 19, wherein providing a delivery sheath having a first lumen further comprises the first lumen extending between an opening in the distal endface and a skive disposed proximally of the distal endface.
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21. The method of claim 15, wherein the delivery sheath further comprises a guide tube attached to the exterior surface proximally of the distal endface, the second lumen passing through the guide tube.
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22. The method of claim 15 further comprising:
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performing a medical procedure, the apparatus catching emboli released while the medical procedure is being performed;
retracting the apparatus into a collapsed configuration within the first lumen of the delivery sheath; and
removing the delivery sheath and apparatus from the patient'"'"'s vessel.
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23. The method of claim 22, wherein the support hoop of the apparatus includes an articulation region, and retracting the apparatus within the first lumen comprises folding the support hoop at the articulation region to close the mouth of the blood permeable sac.
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24. The method of claim 15 further comprising:
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retracting the apparatus to scrape the support hoop against the vessel wall and excise thrombus; and
capturing the thrombus in the blood permeable sac.
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25. The method of claim 24 further comprising:
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retracting the apparatus into a collapsed configuration within the first lumen of the delivery sheath; and
removing the delivery sheath and apparatus from the patient'"'"'s vessel.
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26. The method of claim 25, wherein the support hoop of the apparatus includes an articulation region, and retracting the apparatus within the first lumen comprises folding the support hoop at the articulation region to close the mouth of the blood permeable sac.
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27. A method of trapping emboli or thrombus during a medical procedure, the method comprising:
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providing apparatus comprising an elongated member, a support hoop coupled to the elongated member, and a blood permeable sac affixed to the support hoop so that the support hoop forms a mouth of the blood permeable sac;
providing a delivery sheath having a distal endface, an exterior surface, a lumen, and a proximal end;
positioning the apparatus in a contracted delivery state within the lumen;
providing a guide wire having a distal end, the distal end of the guide wire attached to the proximal end of the delivery sheath;
advancing the delivery sheath, via the guide wire, to a desired location within a patient'"'"'s vessel; and
withdrawing the delivery sheath, via the guide wire, to expand the apparatus to a deployed state wherein the support hoop seals against the vessel wall. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35)
providing an interventional device having a guide wire lumen;
percutaneously and transluminally advancing the interventional device along the elongated member to position the interventional device within the patient'"'"'s vessel at a location proximal of the apparatus;
performing a medical procedure, the apparatus catching emboli released while the medical procedure is being performed;
retracting the apparatus into a collapsed configuration within the guide wire lumen of the interventional device; and
removing the interventional device and apparatus from the patient'"'"'s vessel.
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30. The method of claim 29, wherein the support hoop of the apparatus includes an articulation region, and retracting the apparatus within the guide wire lumen comprises folding the support hoop at the articulation region to close the mouth of the blood permeable sac.
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31. The method of claim 27 further comprising:
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performing a medical procedure, the apparatus catching emboli released while the medical procedure is being performed;
retracting the apparatus into a collapsed configuration within the lumen of the delivery sheath; and
removing the delivery sheath and apparatus from the patient'"'"'s vessel.
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32. The method of claim 31, wherein the support hoop of the apparatus includes an articulation region, and retracting the apparatus within the lumen comprises folding the support hoop at the articulation region to close the mouth of the blood permeable sac.
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33. The method of claim 27 further comprising:
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retracting the apparatus to scrape the support hoop against the vessel wall and excise thrombus; and
capturing the thrombus in the blood permeable sac.
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34. The method of claim 33 further comprising:
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retracting the apparatus into a collapsed configuration within the lumen of the delivery sheath; and
removing the delivery sheath and apparatus from the patient'"'"'s vessel.
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35. The method of claim 34, wherein the support hoop of the appartatus includes an articulation region, and retracting the apparatus within the lumen comprises folding the support hoop at the articulation region to close the mouth of the blood permeable sac.
Specification