However, many unexpected properties such as nonlinear hysteresis and backlash, which appear in the tendon sheath system, cause major losses in force transmission.
A newer version, the SAPIEN XT, is available in 23-, 26- and 29-mm sizes using a smaller transfemoral delivery sheath system (18 and 19 French, which requires a minimal iliofemoral luminal diameter of 6 mm).
With a dynamic expansion mechanism, this sheath system adapts transiently during the passage of the Edwards Sapien 3 transcatheter heart valve and abates to a lower-profile diameter thereafter.
Extraction of these leads has been effected using a wide variety of percutaneous techniques including simple traction, continuous traction, polymer or metal sheath system plus locking stylets, and more recently devices using laser or radiofrequency energy, to assist in sheath insertion.
A similar study of the relative sheath thickness, described by χ, saw asymptotic behaviours given a constant αk of 1.072; direct charged drag forces becoming either Orbital Motion Limit (OML) for thick-sheath systems (χ→0) or sheath-limited (χ≫1).
The impedance parameters of the complex ZnO nanorod core-PPy sheath electrode system were analyzed by equivalent circuit modeling.
In this paper, the tendon-sheath driving system for a robotic hand is discussed and its force transmission characteristic analyzed.
A simple dynamical model, useful for both analysis and control design purposes, that describes the tendon-sheath driving system is presented and discussed.
To measure image clarity, ease of use, and handling performance of a flexible fiberoptic bronchoscope (B-F 100; Vision Sciences; Natick, MA) and sterile single-use disposable-sheath endoscope system (BS-F21 EndoSheath; Vision Sciences).
The correspondence of Gold's (1962) shock with the magnetic cloud-sheath-shock system inferred from multi-spacecraft observation (Burlaga et al. 1981), and a white-light shock surrounding a CME observed by SOHO (Gopalswamy 2010) is shown in Fig. 10.
An experiment was performed to verify the effectiveness of the image processing method applied to the sheath manipulator control system, and the activation threshold of the control system had to be determined and used for the horizontal direction movement of the sheath manipulator.
