Methods of protecting a patient from embolization during surgery
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a technology of embolism and surgery, applied in the field of treating plaque deposits and occlusions, can solve the problems of permanent injury or even death of patients, damage to patients, serious complications,
Inactive Publication Date: 2006-06-15
TSUGITA ROSS S +2
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[0010] The present invention provides an apparatus and method for preventing embolic material from escaping a site of intervention within the aorta, the carotid arteries, and other arteries generally, thereafter causing damage to vital organs, such as the brain. More particularly, the present invention involves an apparatus and method for introducing a stent into a region of a major blood vessel within the human body having plaque deposits, such as the ascending aorta, the descending aorta, aortic arch, common carotid a
Problems solved by technology
Plaque material may be inadvertently dislodged during angioplasty, and this material is then free to travel downstream, possibly lodging within another portion of the blood vessel or possibly reaching a vital organ, causing damage to the patient.
When this material travels downstr
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[0062] Turning to FIG. 1, a first embodiment of the present invention is shown, namely a stent catheter 10 and a filter device 30. The stent catheter 10 typically includes a catheter body 12, an inflatable balloon 16, and a stent 20. The catheter body 12 typically comprises a substantially flexible member having a proximal end (not shown) and a distal end 14. The balloon is mounted on a region at or near the distal end 14 of the catheter body 12. An inflation lumen 18 extends longitudinally from a region at or near the proximal end of the catheter body 12 to the balloon 16.
[0063] The stent 20 is introduced over the balloon 16, typically by manually compressing it onto the balloon 16. The stent 20 may comprise a tube, sheet, wire, mesh or spring, although preferably, it is a substantially cylindrical wire mesh sleeve, that is substantially rigid, yet expandable when subjected to radial pressure. Many known stent devices are appropriate for use with the present invention, such as tho...
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Abstract
An apparatus suitable for filtering emboli in an open surgical procedure. The apparatus comprises an elongated member having a distal region and a support hoop attached to the distal region. A blood permeable sac is affixed to the support hoop so that the support hoop forms a distally-facing mouth of the blood permeable sac. A guidewire is slideably attached to the elongated member. A delivery sheath is provided having a cavity for accepting the elongated member, support hoop and blood permeable sac, and a lumen extending through the cavity to permit the guidewire to pass therethrough. Methods of use are also described.
Description
[0001] This is a continuation of co-pending application Ser. No. 10 / 293,533, filed Nov. 12, 2002, which is a continuation of co-pending application Ser. No. 09 / 893,119, filed Jun. 26, 2001, now U.S. Pat. No. 6,537,297, which is a continuation of co-pending application Ser. No. 09 / 455,011, filed Dec. 3, 1999, now U.S. Pat. No. 6,270,513, which is a continuation of co-pending application Ser. No. 09 / 286,195, filed Apr. 5, 1999, now U.S. Pat. No. 6,042,598, which is a continuation of application Ser. No. 09 / 022,510, filed Feb. 12, 1998, now U.S. Pat. No. 5,910,154, which is a continuation of application Ser. No. 08 / 852,867, filed May 8, 1997, now U.S. Pat. No. 5,911,734. Each of the above applications and patents is hereby expressly and fully incorporated herein by reference.FIELD OF THE INVENTION [0002] The present invention relates generally to treating plaque deposits and occlusions within major blood vessels, more particularly to an apparatus and method for preventing detachment of...
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