Surgery – Instruments – Internal pressure applicator
Patent
1998-04-28
2000-01-18
Buiz, Michael
Surgery
Instruments
Internal pressure applicator
606194, 623 1, A61M 2900
Patent
active
060154241
ABSTRACT:
Apparatus for vascular embolization, deployable through a microcatheter, includes a flexible, elongate deployment tube dimensioned for insertion through the microcatheter, and a filamentous embolic device releasably attached to the distal end of the tube. The embolic device is controllably transformable from a soft, compliant state to a rigid or semi-rigid state. The embolic device may include a polymeric material that is transformable by contact with vascular blood or with a liquid that is cooler than vascular blood, or it may include a metallic material that is transformable by electrolytic corrosion. The embolic device may be a continuous filamentous polymeric extrusion; an elongate microcoil filled with polymeric material; an elongate, multi-segmented chain including polymeric interconnecting portions; or an elongate chain of metal segments that are fused together by electrolytic corrosion. An aneurysm is embolized with this apparatus by deploying a microcatheter so that its distal end is adjacent the aneurysm; deploying the embolic device through the microcatheter and into the aneurysm so that the embolic device forms a web-like mass in the aneurysm; and transforming the embolic device from its soft, compliant state to its rigid or semi-rigid state. The embolic device is advantageously deployed by releasably attaching it to a flexible, elongate deployment tube that is passed through the microcatheter, and then detaching the embolic device from the tube when the embolic device is suitably situated.
REFERENCES:
patent: 4551132 (1985-11-01), Pasztor et al.
patent: 4795741 (1989-01-01), Leshchiner et al.
patent: 4819637 (1989-04-01), Dormandy, Jr. et al.
patent: 4994069 (1991-02-01), Ritchart et al.
patent: 5133731 (1992-07-01), Butler et al.
patent: 5163952 (1992-11-01), Froix
patent: 5226911 (1993-07-01), Chee et al.
patent: 5312415 (1994-05-01), Palermo
patent: 5350397 (1994-09-01), Palermo et al.
patent: 5382259 (1995-01-01), Phelps et al.
patent: 5382260 (1995-01-01), Dormandy, Jr. et al.
patent: 5443478 (1995-08-01), Purdy
patent: 5469867 (1995-11-01), Schmitt
patent: 5476472 (1995-12-01), Dormandy, Jr. et al.
patent: 5525334 (1996-06-01), Ito et al.
patent: 5578074 (1996-11-01), Mirigian
patent: 5580568 (1996-12-01), Greff et al.
patent: 5582619 (1996-12-01), Ken
patent: 5612050 (1997-03-01), Rowe et al.
patent: 5624461 (1997-04-01), Mariant
patent: 5624685 (1997-04-01), Takahashi et al.
patent: 5634936 (1997-06-01), Linden et al.
patent: 5645558 (1997-07-01), Horton
patent: 5658308 (1997-08-01), Snyder
patent: 5718711 (1998-02-01), Berenstein et al.
patent: 5725568 (1998-03-01), Hastings
patent: 5749894 (1998-05-01), Engelson
Schmutz F. et al., "Embolization of Cerebral Arteriovenous Malformations with Silk: Histopathologic Changes and Hemorrhagic Complications," AJNR AM J Neuroradial (Aug. 1997) vol. 18, pp. 1233-1237.
Graves V. B. et al., "Endovascular Occlusion of the Carotid or Vertebral Artery with Temporary Proximal Flow Arrest and Microcoils: Clinical Results," AJNR Am J Neuroradial (Aug. 1997) vol. 18, pp. 1201-1206.
Vinuela F. et al., "Gugleilmi detachable coil embolization of acute intracranial aneurysm; perioperative anatomical and clinical outcome in 403 patients," J Neurosurg (Mar. 1997) vol. 86, pp. 475-482.
Hagashida R. T., M.D. et al., "Interventional Treatment of Intracranial Aneurysms," pp. 460-463.
Cox Brian J.
Greene, Jr. George R.
Rosenbluth Robert F.
Buiz Michael
MicroVention, Inc.
Woo Julian W.
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