نتایج جستجو برای: needle trap device
تعداد نتایج: 735453 فیلتر نتایج به سال:
The diagnostic and clinical usefulness of a powered bone marrow biopsy device (OnControl()) versus a standard manual device (TRAP Hospital System) was studied. Primary endpoints were biopsy quality and patient pain during the procedure. Fifty patients underwent a total of 60 procedures by three expert operators in a randomised stratified fashion. Baseline demographic and clinical parameters wer...
We present a newly developed macromolecular ion accelerator mass spectrometer that combines a dual-ion-trap device and a macromolecular ion accelerator (MIA) to achieve the capability of analyzing samples with a mixture of large biomolecules. MIA greatly increases detection efficiency. The dual ion trap includes a quadrupole ion trap (QIT) and a linear ion trap (LIT) in tandem. The dual ion tra...
In this paper, analytical models for NBTI induced degradation in a P-channel triple gate MOSFET and HCI induced degradation in an N-channel bulk FinFET are presented, through solving the Reaction-Diffusion equations multi-dimensionally considering geometry dependence of this framework of equations. The new models are compared to measurement data and gives excellent results. The results interpre...
Colloidal quantum dot (CQD) films allow large-area solution processing and bandgap tuning through the quantum size effect. However, the high ratio of surface area to volume makes CQD films prone to high trap state densities if surfaces are imperfectly passivated, promoting recombination of charge carriers that is detrimental to device performance. Recent advances have replaced the long insulati...
Here we describe field trials designed to standardize tools for the control of Glossina tachinoides, G. palpalis gambiensis and G.morsitans submorsitans in West Africa based on existing trap/target/bait technology. Blue and black biconical and monoconical traps and 1 m(2) targets were made in either phthalogen blue cotton, phthalogen blue cotton/polyester or turquoise blue polyester/viscose (al...
BACKGROUND Intraosseous (IO) access represents a reliable alternative to intravenous vascular access and is explicitly recommended in the current guidelines of the European Resuscitation Council when intravenous access is difficult or impossible. We therefore aimed to study the efficacy of the intraosseous needle driver EZ-IO in the prehospital setting. METHODS During a 24-month period, all c...
A novel robotized tool for percutaneous interventions under CTscanner guidance is presented in this paper. This teleoperated compact robotic device can be used as an end-effector for an imageguided positioning robot. It is fully compatible with computed tomography constraints. In particular, it is able to manipulate needles that are longer than the overall height of its body. This novel device ...
PURPOSE We report a newly developed device to fragment thrombi in retinal vein occlusion. METHODS The new instrument consists of a 23-gauge (G) pipe and a 37-G needle with an internal wire. A total of 40 porcine eyes were used; 20 eyes for experiments in the branch retinal vein (BRV group) and 20 eyes for experiments in the central retinal vein (CRV group). We placed 25-G 3-port trocars, and ...
Efficient algorithms for calculating dark current in primary image processing real time typical modes of operation a stellar sensor are discussed. We present way to reduce the orientation error by improving accuracy position photocenter star on radiation receiver, charge-coupled matrix device. The dependence determining coordinates standard deviation irregularity thermogeneration rate, expresse...
This paper describes a micromachined piezoelectric sensor, integrated into a cavity at the tip of a biopsy needle, and preliminary experiments to determine if such a device can be used for real-time tissue differentiation, which is needed for needle positioning guidance during fine needle aspiration (FNA) biopsy. The sensor is fabricated from bulk lead zirconate titanate (PZT), using a customiz...
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