نتایج جستجو برای: protection device

تعداد نتایج: 847393  

Journal: :Journal of Korean Neurosurgical Society 2015
Jong Hyeok Lee Hee Eon Sohn Seung Young Chung Moon Sun Park Seong Min Kim Do Sung Lee

OBJECTIVE The main concern during transfemoral carotid artery stenting (CAS) is preventing cerebral embolus dislodgement. We compared clinical outcomes and intraprocedural embolization rates of CAS using a distal filter protection device or proximal balloon occlusion device. METHODS From January 2011 to March 2015, a series of 58 patients with symptomatic or asymptomatic internal carotid arte...

2002
Donald S. Baim Martin B. Leon Jeffrey J. Popma Richard E. Kuntz

Background—Stents provide effective treatment for stenotic saphenous venous aorto-coronary bypass grafts, but their placement carries a 20% incidence of procedure-related complications, which potentially are related to the distal embolization of atherosclerotic debris. We report the first multicenter randomized trial to evaluate use of a distal embolic protection device during stenting of such ...

Journal: :Stroke 2003
Alberto Cremonesi Raffaella Manetti Francesco Setacci Carlo Setacci Fausto Castriota

BACKGROUND AND PURPOSE Periprocedural embolization of debris during carotid stenting interventions may result in neurological deficit. This study was designed to evaluate in-hospital and 30-day adverse events in patients percutaneously treated for carotid artery disease with embolic protection devices. METHODS From 1999 to June 2002, a total of 442 consecutive patients underwent percutaneous ...

2003
Ming-Dou Ker Hsin-Chyh Hsu

A substrate-triggered technique is proposed to improve ESD protection efficiency of the stacked-NMOS device in the mixed-voltage I/O circuit. The substrate-triggered technique can further lower the trigger voltage of the stacked-NMOS device to ensure effective ESD protection for the mixed-voltage I/O circuit. The proposed ESD protection circuit with the substrate-triggered technique for 2.5V/3....

Journal: :Journal of vascular and interventional neurology 2013
Masaki Watanabe Yutaka Kai Teruyuki Hirano Yuki Ohmori Kiyoshi Kazekawa Jun-Ichi Kuratsu

We report herein the usefulness of a manual external carotid artery manipulation for failed advancement of devices through the stent in carotid artery stent (CAS) placement with open cell type stent and filter type distal protection device. In all, 22 consecutive patients underwent CAS with filter type protection device between April 2008 and December 2009 in our institution, and failed advance...

Journal: :AJNR. American journal of neuroradiology 2008
W P Daugherty J B White H J Cloft D F Kallmes

This report describes the cases of 2 patients with failed retrieval of an AngioGuard distal protection device after carotid stent placement with rescue retrieval by use of a vertebral catheter. An AngioGuard was deployed before carotid angioplasty and stent placement. Attempted removal of the device with the provided recapture sheath was unsuccessful. A 5F 120-cm vertebral catheter was used to ...

Journal: :Journal of Vascular and Interventional Radiology 2009

2002
Ming-Dou Ker Chien-Hui Chuang Kuo-Chun Hsu Wen-Yu Lo

A substrate-triggered technique is proposed to improve ESD protection efficiency of the stacked-NMOS device in the mixed-voltage I/O circuit. The substrate-triggered technique can further lower the trigger voltage of the stacked-NMOS device to ensure effective ESD protection for the mixed-voltage I/O circuit. The proposed ESD protection circuit with the substrate-triggered technique for 2.5V/3....

2009
Jorg Kaiser Karol Czaja

The paper describes ACOM (Access Control Monitor), a hardware device which we developed to enforce run time protection in an persistent object-oriented system. To obtain a wide acceptance, the efSiciency of these systems must be comparable to conventional language systems. One of the key issues is to exploit the efJiciency of virtual memory management of contemporary processors. We will argue t...

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