Surgery – Instruments – Internal pressure applicator
Patent
1999-01-12
2000-12-26
Buiz, Michael
Surgery
Instruments
Internal pressure applicator
606192, 606159, 604 22, A61B 1700
Patent
active
061651990
ABSTRACT:
The invention provides a medical device having an elongate catheter, a balloon occluder mounted on a distal end of the catheter, and optionally a chopping mechanism associated with an aspiration port of the catheter. Continuous or intermittent suction can be applied to the aspiration port which is distal to the occluder to dislodge thromboembolic material in a carotid or cerebral artery. Oxygenated blood or other fluid, which may be hypothermic, can be perfused through at least one perfusion port proximal to the occluder to maintain and augment perfusion of the collateral vasculature proximal to the occlusive lesion. The flow rate of blood or fluid can be controlled by rotating two cylindrical members. Neuroprotective agents or t-PA can also be infused distal to the occluder through the aspiration port or an infusing port. Methods of using the devices in treating patients with acute stroke or occlusive cerebrovascular disease are also disclosed.
REFERENCES:
patent: 4646736 (1987-03-01), Auth
patent: 5242460 (1993-09-01), Klein et al.
patent: 5908407 (1999-06-01), Frazee et al.
patent: 5928192 (1999-09-01), Maahs
Buiz Michael
Coaxia, Inc.
Ngo Lien
LandOfFree
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