Adjustable blood filtration system
Patent 6007557 Issued on December 28, 1999. Estimated Expiration Date: 
April 29, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
April 29, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMedical devices incorporating sim alloy elements Method and apparatus for dilating blood vessels Device and method for emboli retrieval Vasodilating catheter Intracardiac catheter Multi purpose perfusion cannula Endovascular aortic valve replacement Percutaneous filter for carotid angioplasty Cannula with a modular filter for filtering embolic material Patent #: 5846260 Inventors
ApplicationNo. 070660 filed on 04/29/1998US Classes:606/200, With emboli trap or filter606/159Blood vessel, duct or teat cutter, scrapper or abraderExaminersPrimary: Buiz, MichaelAssistant: Trinh, (Vikki) Hoa B. Attorney, Agent or FirmForeign Patent References
International ClassA61B 017/00AbstractA modular blood filter device and delivery system, comprising a hollow vessel insertion device with a modular filter apparatus. The insertion device, which can be an introducer, includes a distal end adapted to enter an artery, and a proximal end adapted to receive a modular filter apparatus. When the insertion device is a cannula, the modular filter apparatus is received through a side port. The modular filter apparatus includes a shaft and an adjustable filter device or a removable filter associated with the shaft. The adjustable filter includes filter mesh, an adjustable flame capable of assuming enlarged and contracted conditions and a frame sizing mechanism associated with the frame. Certain embodiments include a filter cartridge, and the shaft is inserted into the cartridge, thereby protecting the adjustable filter device therein. The cartridge may then be removably received by the insertion device. An expandable obturator may be used to ease the entry of the insertion device into the vessel. Indexing and locking mechanisms are described for aligning the cartridge or the obturator to the insertion device. Vessel sizing tools are also described for determining the size of the vessel into which the filter will be introduced. The insertion device may then be introduced into a blood vessel, and the adjustable filter device may be deployed through the device into the vessel The adjustable frame may be self-adjusting or externally adjusted to fit the vessel and to capture embolic material in the mesh. The frame may be collapsed to the contracted condition, and may be removed from the vessel or embolic debris may be removed by an aspiration tube. The modular filter cartridge may be removed from the cannula, and a new modular filter cartridge may then be received therein.Other References
Field of SearchWith emboli trap or filterSutureless closure Means for inserting or removing conduit within body Blood vessel, duct or teat cutter, scrapper or abrader Surgical mesh, connector, clip, clamp or band Cutter carried on elongated probe-like member Recriprocating or oscillating cutter Detachable from inflation means Expanding dilator (e.g., expanding arm, etc.) Having means expanding body orifice or canal (e.g., dilator, retaining means, etc.) Having branched shapes (e.g., T or Y drains, etc.) | |
