Contact sensitivity to electrocardiogram electrodes due to acrylic acid: A rare cause of medical device allergy

2019 ◽  
Vol 82 (2) ◽  
pp. 118-121 ◽  
Author(s):  
Katharina Hansel ◽  
Marta Tramontana ◽  
Leonardo Bianchi ◽  
Emilia Cerulli ◽  
Cataldo Patruno ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Medical Device ◽  
Contact Sensitivity

Soft ionic liquid based resistive memory characteristics in a two terminal discrete polydimethylsiloxane cylindrical microchannel

2020 ◽  
Vol 8 (38) ◽  
pp. 13368-13374
Author(s):  
Muhammad Umair Khan ◽  
Gul Hassan ◽  
Jinho Bae
Keyword(s):  
Ionic Liquid ◽  
Acrylic Acid ◽  
Sodium Hydroxide ◽  
Sodium Salt ◽  
Resistive Memory ◽  
Cylindrical Microchannel ◽  
Memory Characteristics ◽  
Poly Acrylic Acid

This paper proposes a novel soft ionic liquid (IL) electrically functional device that displays resistive memory characteristics using poly(acrylic acid) partial sodium salt (PAA-Na+:H2O) solution gel and sodium hydroxide (NaOH) in a thin polydimethylsiloxane (PDMS) cylindrical microchannel.

Familial benign chronic pemphigus. The role of trauma including contact sensitivity

1971 ◽  
Vol 104 (2) ◽  
pp. 177-181 ◽  
Author(s):  
A. K. Izumi
Keyword(s):  
Contact Sensitivity

An analysis of home and hospital medical device incidents in the Maude database

2004 ◽  
Author(s):  
Ibraheem S. Al-Tarawneh ◽  
Walter J. Stevens ◽  
Steven R. Arndt
Keyword(s):  
Medical Device ◽  
Hospital Medical

Thrombosis of Surgical Bioprosthetic Heart Valves-Insights from Reports to International Medical Device Vigilance Systems

2017 ◽  
Vol 65 (S 01) ◽  
pp. S1-S110
Author(s):  
C. Gestrich ◽  
J.E. Klein ◽  
B. Toctam ◽  
G.D. Dürr ◽  
J.M. Sinning ◽  
...  
Keyword(s):  
Medical Device ◽  
Heart Valves ◽  
International Medical ◽  
Bioprosthetic Heart Valves

Europäischer Medizinproduktemarkt: Wie sich Einkauf und Logistik auf die europäische MDR vorbereiten müssen

2019 ◽  
Vol 01 (04) ◽  
pp. 74-77
Author(s):  
Thomas Gallmann
Keyword(s):  
Medical Device ◽  
Medical Device Regulation

Nicht lieferbare Medizinprodukte sind für Kliniken ein Albtraum – mitunter müssen sogar geplante OPs abgesagt werden. Die Folge: Die mit den Kostenträgern vereinbarten Leistungszahlen sind schwieriger zu erfüllen und es könnte zu schwer kompensierbaren Erlöseinbußen für die Leistungserbringer kommen. Die Medical Device Regulation (MDR) wird die Liefersituation von Medizinprodukten ab 2020 wahrscheinlich noch weiter verschärfen.

The study for constant force characteristic of C-shaped superelastic SMA

2020 ◽  
Vol 64 (1-4) ◽  
pp. 1253-1259
Author(s):  
Minghui Wang ◽  
Hongliu Yu
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Medical Device ◽  
Soft Tissues ◽  
Computational Simulation ◽  
Force Characteristic ◽  
Constant Force ◽  
Curve Shape ◽  
Artificial Sphincter ◽  
Round Bar

Clamping devices with constant force or pressure are desired in medical device, such as hemostatic forceps and the artificial sphincter, to prevent soft tissues from injures due to overloading. It is easily obtained by stretching an SMA wire. However, studies with SMA bending round bar have seldom been reported before. This paper studied constant force characteristic of C-shaped round bar with shape memory alloys. Optimization designs of the components were carried out with computational simulation. Numerical results show that the phenomenon of constant force strongly depends on contour curve shape and geometric dimensions of the C-shaped round bar of SMA component.

Attrarre la produzione e la ricerca di imprese farmaceutiche e di medical device

MECOSAN ◽  
2017 ◽  
pp. 103-108
Author(s):  
Patrizio Armeni ◽  
Giuditta Callea ◽  
Rosanna Tarricone ◽  
Aleksandra Torbica
Keyword(s):  
Medical Device

The Role of the Initiator System in the Synthesis of Acidic Multifunctional Nanoparticles Designed for Molecular Imprinting of Proteins

2020 ◽  
Vol 65 (1) ◽  
pp. 28-41
Author(s):  
Marwa Aly Ahmed ◽  
Júlia Erdőssy ◽  
Viola Horváth
Keyword(s):  
Acrylic Acid ◽  
Binding Affinity ◽  
Molecular Imprinting ◽  
Low Temperatures ◽  
Ammonium Persulfate ◽  
Sodium Bisulfite ◽  
Multifunctional Nanoparticles ◽  
High Affinity ◽  
Initiator System

Multifunctional nanoparticles have been shown earlier to bind certain proteins with high affinity and the binding affinity could be enhanced by molecular imprinting of the target protein. In this work different initiator systems were used and compared during the synthesis of poly (N-isopropylacrylamide-co-acrylic acid-co-N-tert-butylacrylamide) nanoparticles with respect to their future applicability in molecular imprinting of lysozyme. The decomposition of ammonium persulfate initiator was initiated either thermally at 60 °C or by using redox activators, namely tetramethylethylenediamine or sodium bisulfite at low temperatures. Morphology differences in the resulting nanoparticles have been revealed using scanning electron microscopy and dynamic light scattering. During polymerization the conversion of each monomer was followed in time. Striking differences were demonstrated in the incorporation rate of acrylic acid between the tetramethylethylenediamine catalyzed initiation and the other systems. This led to a completely different nanoparticle microstructure the consequence of which was the distinctly lower lysozyme binding affinity. On the contrary, the use of sodium bisulfite activation resulted in similar nanoparticle structural homogeneity and protein binding affinity as the thermal initiation.

Sign in / Sign up

Export Citation Format

Share Document