Commodity operating systems achieve good performance by running device drivers in-kernel. Unfortunately, this architecture offers poor fault isolation. This paper introduces microdrivers, which reduce the amount of driver code running in the kernel by splitting driver functionality between a small kernel-mode component and a larger user-mode component. This paper presents the microdriver archit...

BACKGROUND A new device for sterile docking, the Compodock (Fresenius NPBI Transfusion Technology), was developed for connecting PVC tubing for medical use while maintaining sterility. STUDY DESIGN AND METHODS Sterility of the connections was assessed by welding tubing with a heavy exterior contamination with Bacillus subtilis spores and also by welding in an environment contaminated with aer...

Percutaneous closure of a prosthetic paravalvular leak (PVL) is a challenging procedure. Operators must use devices constructed for other applications. We present the use of a device which is specifically designed for PVL closure. To the best of our knowledge, there is no publication in MEDLINE reporting the use of the device.

This paper presents a new type of haptic device using spherical geometry. The basic idea of haptic devices is to provide users with feedback information on the motion and/or force that he or she generates. Haptic devices have several potential applications, such as for example, fine compliant assembly, VR environment simulation and high precision teleoperation, especially in hazardous or hostil...

Traditional audio device drivers are unable to provide low latency audio services and often do not provide audio mixing services. High quality audio has, compared to other media types, relatively low bandwidth, but is very sensitive to latency and errors. This paper presents a device driver abstraction that exploits the low bandwidth and constantion that exploits the low bandwidth and constant ...

Safe sampling of cord blood can reduce the risk of exposure to infectious agents by obstetric personnel. We developed a new device for collecting umbilical cord blood. Using a modified closed-cup instrument, gravity drainage within the sealed device allows for guarded-needle vacuum tube blood collection. The mean (+/- standard deviation) volume of blood collected with the device was 6.1 +/- 3.1...

By the spring of 2005, the European Commission hopes to present the first draft of the revisions to the Medical Device Directive to the European Council and Parliament. However, these revisions represent only part of the changing European regulatory scenario. This article discusses a tangible shift in European medical device regulatory policy and some actions that companies can take to understa...

abstract: one the most important problems in recent sensitive loads is the quality of voltage. for this challenge custom power devices are used in distribution systems. dynamic voltage restorer (dvr) is a custom power device that improves voltage, decrease power distortion, filter harmonics and balance distributed generations (dgs) with low voltage distribution system. in this paper, a new algo...

Auditory Electrical Stimulation for Tinnitus Suppression Tinnitus is the conscious experience of sound which arises in the head of its owner, but without a voluntary origin obvious to that person. About 10-15% of all adults report prolonged spontaneous tinnitus (PST). There are a lot of methods for suppressing this complaint. One of these methods is electrical stimulation. Electrical stimu...

Testing of the coincidence of a linear accelerators X-ray field and the light field as a quality control test is often done in a subjective method, involving the manual marking of pieces of film and the visual inspection of the film after irradiation. The purpose of this study was to develop an objective method for performing this test, while also increasing the accuracy, precision and the spee...