A Study on a Power Assist Device Using Impedance Control

2003 ◽  
Vol 2003.52 (0) ◽  
pp. 311-312
Author(s):  
Ryota HAYASHI ◽  
Hiroyuki KATO ◽  
Ryojun IKEURA ◽  
Hisashi NAKAMURA ◽  
Kazuki MIZUTANI
Keyword(s):  
Impedance Control ◽  
Assist Device

scholarly journals Impedance Control for an Industrial Power Assist Device Considering Contact Operations

2006 ◽  
Vol 72 (714) ◽  
pp. 514-521 ◽  
Author(s):  
Hirayuki KATO ◽  
Ryojun IKEURA ◽  
Shinpei NOGUCHI ◽  
Kazuki MIZUTANI ◽  
Hisashi NAKAMURA ◽  
...  
Keyword(s):  
Impedance Control ◽  
Assist Device

Impedance control of a compression cardiac assist device

2003 ◽  
Author(s):  
G. Davies ◽  
M.C. Levesley ◽  
P.G. Walker ◽  
M.D. Brown ◽  
K. Watterson
Keyword(s):  
Impedance Control ◽  
Assist Device ◽  
Cardiac Assist ◽  
Cardiac Assist Device

Caretaker-Machine Collaborative Manipulation With an Advanced Hydraulically Actuated Patient Transfer Assist Device

2014 ◽  
Author(s):  
Heather C. Humphreys ◽  
Wayne J. Book ◽  
James D. Huggins ◽  
Brittney Jimerson
Keyword(s):  
Needs Assessment ◽  
Interface Design ◽  
Spinal Cord Injuries ◽  
Impedance Control ◽  
Neuromuscular Disorders ◽  
Patient Transfer ◽  
Assist Device ◽  
Unique Challenge ◽  
Control Approach ◽  
Hydraulically Actuated

A significant market need has been identified for an improved assist device for transferring mobility limited patients, particularly those who are heavier or bariatric. This paper discusses our needs assessment for a new patient transfer assist device (PTAD), an initial design for a multiple degree of freedom hydraulically actuated device, and possible solutions for the caretaker interface design. The relevant patient population includes those with spinal cord injuries, neuromuscular disorders, and the elderly; most patients are wheelchair users and unable to perform independent transfers. The caretaker interface design for the PTAD presents a unique challenge in terms of human-machine collaborative manipulation, as well as control of a powerful and intrinsically stiff machine in a delicate environment with both the caretaker and patient in the workspace. This paper presents a needs assessment to determine the specific problems with the antiquated current market patient lifts, as well as user input on proposed improvements. It also presents the design of a functional first prototype PTAD, a mechanical simulation, preliminary simulation results on an impedance control approach, and next steps toward design and implementation of a caretaker- and patient-friendly operator interface and control system.

scholarly journals 3E3-05 Study on Improving the Maneuverability of a Power Assist Device with Impedance Control

2006 ◽  
Vol 2006 (0) ◽  
pp. 315-316
Author(s):  
Chiaki EBISU ◽  
Ryojun IKEURA ◽  
Yusuke SHIRAKAWA ◽  
Kazuki MIZUTANI ◽  
Hisashi NAKAMURA ◽  
...  
Keyword(s):  
Impedance Control ◽  
Assist Device

Left Ventricle Afterload Impedance Control by an Axial Flow Ventricular Assist Device: A Potential Tool for Ventricular Recovery

2010 ◽  
Vol 34 (9) ◽  
pp. 736-744 ◽  
Author(s):  
Francesco Moscato ◽  
Maurizio Arabia ◽  
Francesco M. Colacino ◽  
Phornphop Naiyanetr ◽  
Guido A. Danieli ◽  
...  
Keyword(s):  
Left Ventricle ◽  
Ventricular Assist Device ◽  
Impedance Control ◽  
Axial Flow ◽  
Assist Device ◽  
Ventricular Assist ◽  
Potential Tool

Ultrastructural observations of the aorta of calves implanted with a mechanical left ventricular assist device

1990 ◽  
Vol 48 (3) ◽  
pp. 834-835
Author(s):  
J P Cassella ◽  
V Salih ◽  
T R Graham
Keyword(s):  
Left Ventricular Assist Device ◽  
Ventricular Assist Device ◽  
Left Ventricular ◽  
Aortic Tissue ◽  
Assist Device ◽  
Ventricular Assist ◽  
Transmission Electron ◽  
Left Ventricular Assist ◽  
Preliminary Study

Left ventricular assist systems are being developed for eventual long term or permanent implantation as an alternative to heart transplantation in patients unsuitable for or denied the transplant option. Evaluation of the effects of these devices upon normal physiology is required. A preliminary study was conducted to evaluate the morphology of aortic tissue from calves implanted with a pneumatic Left Ventricular Assist device-LVAD. Two 3 month old heifer calves (calf 1 and calf 2) were electively explanted after 128 days and 47 days respectively. Descending thoracic aortic tissue from both animals was removed immediately post mortem and placed into karnovsky’s fixative. The tissue was subsequently processed for transmission electron microscopy (TEM). Some aortic tissue was fixed in neutral buffered formalin and processed for routine light microscopy.

Sign in / Sign up

Export Citation Format

Share Document