1.

Record Nr.

UNINA9910143264603321

Titolo

Implantable cardiac pacemakers and defibrillators [[electronic resource] ] : all you wanted to know / / edited by Anthony W.C. Chow, Alfred E. Buxton

Pubbl/distr/stampa

Malden, Mass., : Blackwell Pub./BMJ Books, 2006

ISBN

1-280-74295-X

9786610742950

0-470-79042-3

0-470-75053-7

1-4051-7257-6

Descrizione fisica

1 online resource (186 p.)

Altri autori (Persone)

ChowAnthony W. C

BuxtonAlfred E

Disciplina

617.4120645

Soggetti

Cardiac pacing

Electric countershock

Electronic books.

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di bibliografia

Includes bibliographical references and index.

Nota di contenuto

Implantable Cardiac Pacemakers and Defibrillators:  All You Wanted to Know; Contents; List of contributors; Introduction; Chapter 1 Basic principles of pacing; Chapter 2 Temporary cardiac pacing; Chapter 3 Pacemaker implantation and indications; Chapter 4 The ICD and how it works; Chapter 5  Indications for the implanted  cardioverter-defibrillator; Chapter 6 ICD follow-up: complications, troubleshooting, and emergencies related to ICDs; Chapter 7 Pacing therapies for heart failure; Chapter 8 Pacing in special cases: hypertrophic cardiomyopathy, congenital heart disease

Chapter 9 Lead problems, device infections, and lead extractionIndex

Sommario/riassunto

Pacing and ICDs are used increasingly in the management of arrhythmias and a number of different cardiac conditions. Specialists, general cardiologists and general physicians are now closely involved in managing patients with these devices. Implantable Cardiac Pacemakers



and Defibrillators: All you wanted to know is written by leading specialists from the UK and USA and is designed for all physicians looking for a clear and comprehensive introduction to the principles and functions of these devices. The focus of this book has been on the indications for these devices and continuing pati

2.

Record Nr.

UNINA9910782268403321

Titolo

Haptics for teleoperated surgical robotic systems [[electronic resource] /] / M. Tavakoli ... [et al.]

Pubbl/distr/stampa

Hackensack, NJ, : World Scientific, c2008

ISBN

1-281-96094-2

9786611960940

981-281-316-0

Descrizione fisica

1 online resource (180 p.)

Collana

New frontiers in robotics ; ; v. 1

Altri autori (Persone)

TavakoliM

Disciplina

610.284

617.00284

Soggetti

Robotics in medicine

Touch

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di bibliografia

Includes bibliographical references (p. 145-156) and index.

Nota di contenuto

Contents; Preface; List of Figures; List of Tables; 1. Introduction; 1.1 Robot-Assisted Intervention: Bene ts and Applications; 1.2 Robotics Technology for Surgery and Therapy; 1.2.1 Augmenting devices and systems; 1.2.1.1 Hand-held tools; 1.2.1.2 Cooperatively-controlled tools; 1.2.1.3 Teleoperated tools; 1.2.1.4 Autonomous tools; 1.2.2 Supporting devices and systems; 1.2.2.1 Positioning/stabilization purposes; 1.2.2.2 Increasing device dexterity or autonomy; 1.3 Haptics for Robotic Surgery and Therapy; 1.3.1 Haptic user interface technology; 1.3.1.1 PHANToM; 1.3.1.2 Freedom-6S

1.3.1.3 Laparoscopic Impulse Engine and Surgical Workstation1.3.1.4 Xitact IHP; 1.3.2 Haptic surgical teleoperation; 1.4 Technological Challenges of the Future; 2. Sensorized Surgical Effector (Slave); 2.1



Introduction; 2.1.1 Limitations of endoscopic surgery; 2.1.2 The need for robot-assisted surgery; 2.1.3 Signi cance of haptic perception in master-slave operation; 2.1.4 Perceptual-motor skills study; 2.2 Methods, Materials and Results; 2.2.1 Force reection methods; 2.2.2 Design requirements; 2.2.3 Twist and tip motions; 2.2.4 Interaction measurement; 2.3 Discussion; 2.4 Concluding Remarks

3. Haptic User Interface (Master)3.1 Introduction; 3.1.1 Computer-assisted endoscopic surgery training; 3.1.1.1 Haptic perception in computer-assisted surgical training; 3.2 Haptic User Interface Architecture; 3.2.1 Force reflection in pitch, yaw and insertion; 3.2.2 Force reflection in roll and gripping; 3.3 Analysis of the Haptic Interface; 3.3.1 Sensitivity; 3.3.2 Workspace; 3.3.2.1 Optimization for control accuracy; 3.3.3 Force reection capability; 3.4 Concluding Remarks; 4. Unilateral Teleoperation Control; 4.1 Introduction; 4.1.1 Direct inverse dynamics control

4.1.2 Feedback error learning control4.2 PHANToM Inverse Dynamics Identification; 4.3 Adaptive Inverse Dynamics Trajectory Control of the PHANToM; 5. Bilateral Teleoperation Control; 5.1 Introduction; 5.2 Stability and Transparency in Haptic Teleoperation; 5.2.1 2-channel architectures; 5.2.1.1 Position Error Based (PEB); 5.2.1.2 Direct Force Reection (DFR); 5.2.2 4-channel architecture; 5.2.2.1 Scattering theory and absolute stability; 5.2.2.2 Stability and performance robustness; 5.2.2.3 3-channel case; 5.3 Haptic Teleoperation Experiments; 5.3.1 Experimental setup

5.3.2 Master-slave communication5.3.3 Observation of hand forces; 5.3.4 Observer and controller gains; 5.3.5 Soft-tissue palpation tests; 5.4 Concluding Remarks; 6. Substitution for Haptic Feedback; 6.1 Introduction; 6.2 Graphical Substitution for Haptic Feedback; 6.2.1 Case study: Lump localization task; 6.2.1.1 Experiment design; 6.2.1.2 Results; 6.2.1.3 Discussion; 6.3 Multi-Modal Contact Cues; 6.3.1 Case study: Tissue stiffness discrimination Task; 6.3.1.1 Experiment Design; 6.3.1.2 Results; 6.3.1.3 Discussion; 6.4 Concluding Remarks; 7. Bilateral Teleoperation Control Under Time Delay

7.1 Introduction

Sommario/riassunto

An important obstacle in Minimally Invasive Surgery (MIS) is the significant degradation of haptic feedback (sensation of touch) to the surgeon about surgical instrument's interaction with tissue. This monograph is concerned with devices and methods required for incorporating haptic feedback in master-slave robotic MIS systems. In terms of devices, novel mechanisms are designed including a surgical end-effector (slave) with full force sensing capabilities and a surgeon-robot interface (master) with full force feedback capabilities. Using the master-slave system, various haptic teleoperation c



3.

Record Nr.

UNINA9910777903103321

Autore

Cross Michael (Michael Clifford)

Titolo

Pattern formation and dynamics in nonequilibrium systems / / Michael Cross, Henry Greenside [[electronic resource]]

Pubbl/distr/stampa

Cambridge : , : Cambridge University Press, , 2009

ISBN

1-107-19468-7

1-139-63673-1

0-511-62720-3

0-511-65151-1

0-511-59363-5

0-511-59270-1

0-511-59556-5

Descrizione fisica

1 online resource (xvi, 535 pages) : digital, PDF file(s)

Disciplina

500.201185

Soggetti

Pattern formation (Physical sciences)

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Title from publisher's bibliographic system (viewed on 05 Oct 2015).

Nota di bibliografia

Includes bibliographical references (p. 526-530) and index.

Nota di contenuto

Cover; Half-title; Title; Copyright; Dedication; Contents; Preface; 1 Introduction; 2 Linear instability: basics; 3 Linear instability: applications to reacting and diffusing chemicals; 4 Nonlinear states; 5 Models; 6 One-dimensional amplitude equation; 7 Amplitude equations for two-dimensional patterns; 8 Defects and fronts; 9 Patterns far from threshold; 10 Oscillatory patterns; 11 Excitable media; 12 Numerical methods; Appendix 1 Elementary bifurcation theory; Appendix 2 Multiple scales perturbation theory; Glossary; References; Index

Sommario/riassunto

Many exciting frontiers of science and engineering require understanding the spatiotemporal properties of sustained nonequilibrium systems such as fluids, plasmas, reacting and diffusing chemicals, crystals solidifying from a melt, heart muscle, and networks of excitable neurons in brains. This introductory textbook for graduate students in biology, chemistry, engineering, mathematics, and physics provides a systematic account of the basic science common to these diverse areas. This book provides a careful pedagogical motivation of key concepts, discusses why diverse nonequilibrium systems often



show similar patterns and dynamics, and gives a balanced discussion of the role of experiments, simulation, and analytics. It contains numerous worked examples and over 150 exercises. This book will also interest scientists who want to learn about the experiments, simulations, and theory that explain how complex patterns form in sustained nonequilibrium systems.