Coronary sinus long sheath catheter system: A new device for transfemoral coronary sinus catheterization

1999 ◽  
Vol 14 (4) ◽  
pp. 201-204
Author(s):  
Takafumi Ueno ◽  
Hisashi Kai ◽  
Hisao Ikeda ◽  
Takahiro Matsumoto ◽  
Toyoaki Murohara ◽  
...  
Keyword(s):  
Coronary Sinus ◽  
New Device ◽  
System A ◽  
Catheter System

A novel geometry error measurement methodology for coaxiality evaluation

2020 ◽  
pp. 095440542096817
Author(s):  
Zhang Yingjie ◽  
Ge Liling
Keyword(s):  
Weighted Least Squares ◽  
Measurement Data ◽  
Coordinate Frame ◽  
Laser Sensor ◽  
New Device ◽  
System A ◽  
Measurement Methodology ◽  
Measurement Principle ◽  
3D Profile ◽  
Geometry Error

In this paper, we proposed a new device for geometry errors measurement and coaxiality evaluation, and the corresponding methodology for coaxiality evaluation from measurement data is presented, which allows to characterize multiple holes at a time. Unlike traditional measurement system a laser sensor is mounted onto out of the holes so that multi-hole surfaces can be “seen” by the senor when it rotates around a fixed axis. First the intersections (or ellipse profiles) of the sensor’s scanning plane and holes, are computed by fitting. Then, the center coordinates and profile points of the ellipse are computed and transformed to the 3D global coordinate frame. Finally the centerline of the hole is determined from the 3D profile points by using a weighted least-squares fitting algorithm. In addition, to reduce the effect of noises on the measurement result, error analysis and compensation techniques are studied to improve the measurement accuracy. A case study is presented to validate the measurement principle and data processing approach.

The Radius Surgical System – A New Device for Complex Minimally Invasive Procedures in Urology?

2007 ◽  
Vol 51 (4) ◽  
pp. 1015-1022 ◽  
Author(s):  
Thomas Frede ◽  
Ahmed Hammady ◽  
Jan Klein ◽  
Dogu Teber ◽  
Noriyuki Inaki ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Minimally Invasive Procedures ◽  
Invasive Procedures ◽  
New Device ◽  
System A ◽  
Radius Surgical System ◽  
Surgical System

scholarly journals Angel Heel system: a new device for training and controlling partial lower limb weight bearing

2013 ◽  
Author(s):  
Sándor Manó ◽  
Zsolt Hunya ◽  
Veronika Kósa ◽  
György Posgay ◽  
Péter Molnár ◽  
...  
Keyword(s):  
Lower Limb ◽  
Weight Bearing ◽  
New Device ◽  
System A

scholarly journals The Roball

2002 ◽  
Vol 35 (3) ◽  
pp. 204-207 ◽  
Author(s):  
William H. Robinson
Keyword(s):  
Seismic Isolation ◽  
Inverted Pendulum ◽  
Experimental Results ◽  
Flat Plates ◽  
Isolation System ◽  
Friction Forces ◽  
New Device ◽  
System A ◽  
Full Scale Tests ◽  
User Friendly

Robinson Seismic's latest developments in seismic isolation includes a new device, the RoballTM, for seismically isolating structures during earthquakes. This advance is a new concept for seismic isolation based on the principle of the inverted pendulum. It consists of 'friction balls' or 'Roballs' moving between upper and lower spherical like cavities or flat plates. The Roballs are filled with a material which is able to provide the friction forces required to absorb the energy from numerous earthquakes while supporting the structure. The Roball technique is expected to enable light and in the future possibly heavy structures to be more economically seismically isolated. As part of a program to develop a user friendly 'seismic isolation system' a series of full-scale tests have been carried out on a number of possible designs including three approaches for vertical pressures of -1 MPa resulting in coefficients of friction of -0.1 to -0.4. In this paper we present the preliminary experimental results.

Vascular access by physician assistants: evaluation of an implantable peripheral port system in cancer patients.

1995 ◽  
Vol 13 (6) ◽  
pp. 1513-1519 ◽  
Author(s):  
E B Rubenstein ◽  
A Fender ◽  
K V Rolston ◽  
L S Elting ◽  
P Prasco ◽  
...  
Keyword(s):  
Vascular Access ◽  
Physician Assistants ◽  
Ambulatory Setting ◽  
Infusion Therapy ◽  
Port Catheter ◽  
New Device ◽  
Access System ◽  
Catheter System ◽  
Port System

PURPOSE To determine the ability of a physician assistant (PA) to insert, in an ambulatory setting, a peripheral subcutaneous implanted vascular-access device (VAD) and to evaluate the ability to transfer this training to a second PA. We also evaluated the performance and complications associated with this new device. PATIENTS AND METHODS The Peripheral Access System (PAS) Port catheter system (Sims-Deltec Inc, St Paul, MN) was inserted in patients who required long-term (> 3 months) vascular access for infusion therapy. RESULTS The first PA (PA-1) successfully inserted 57 of 62 devices (92%) after gaining experience with the technique in 10 patients (success rate, five of 10 [50%]; P = .003). The second PA (PA-2) was successful in eight of 10 initial attempts (80%) and 25 of 30 overall (83%). Complications were few and limited to phlebitis, thrombosis, and a low infection rate (0.2 per 1,000 catheter days). CONCLUSION PAs can be taught to insert a peripheral subcutaneous implanted VAD. This technique is transferable from one PA to another, and the device studied is appropriate for outpatient VAD programs.

Combined NIRS and IVUS imaging detects vulnerable plaque using a single catheter system: a head-to-head comparison with OCT

2014 ◽  
Vol 10 (3) ◽  
pp. 303-311 ◽  
Author(s):  
Tomasz Roleder ◽  
Jason C. Kovacic ◽  
Ziad Ali ◽  
Raman Sharma ◽  
Ecatarina Cristea ◽  
...  
Keyword(s):  
Vulnerable Plaque ◽  
System A ◽  
Catheter System ◽  
Ivus Imaging

scholarly journals Endovascular treatment of wide-necked intracranial aneurysms using the novel Contour Neurovascular System: a single-center safety and feasibility study

2020 ◽  
Vol 12 (10) ◽  
pp. 987-992 ◽  
Author(s):  
Christopher Yusuf Akhunbay-Fudge ◽  
Kenan Deniz ◽  
Atul Kumar Tyagi ◽  
Tufail Patankar
Keyword(s):  
Intracranial Aneurysms ◽  
Medical Condition ◽  
Superior Cerebellar Artery ◽  
Anterior Communicating Artery ◽  
New Device ◽  
System A ◽  
Radiological Data ◽  
Cerebellar Artery ◽  
Class 1

Background and purposeWide-necked bifurcation aneurysms pose a significant challenge to the treating clinician. The Contour Neurovascular System embolization device is a novel tool for the treatment of such intracranial aneurysms. We report on our experience with this device.MethodsProspective clinical and radiological data were collected for all patients treated with the Contour device at our center. All our patients were treated on an elective basis.ResultsWe have treated 11 patients successfully with the Contour device to date. All patients were women with a mean (SD) age of 65.0 (6.4) years. In total, four basilar tip, two internal carotid artery, three middle cerebral artery, one anterior communicating artery, and one superior cerebellar artery aneurysms were treated. At 1-year follow-up, complete occlusion (Raymond Class 1) was seen in 55.56% (5/9) of cases, with 44.44% (4/9) having small neck remnants (Raymond Class 2). One patient declined 1-year catheter angiography and another had no further follow-up due to an unrelated medical condition. For six patients, 2-year radiological follow-up is available and shows stability. At 6 weeks, nine of the 11 patients had a modifed Rankin Scale score of 0, with two patients scoring 1 for headaches. Two patients had thromboembolic events, but there were no complications leading to permanent neurological disability or death. We additionally had three patients where the Contour device was attempted but was unable to be successfully used.ConclusionInitial results are promising although larger case numbers and longer follow-up are necessary to draw further conclusions on the utility and risk profile of this new device.

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