scholarly journals Research and Application of a New Electric Coupling Device

2021 ◽  
Author(s):  
Yongdao Wang ◽  
Guang Yang ◽  
Jie He ◽  
Chuanqiu Li ◽  
Kangshun Luo
Keyword(s):  
Electric Coupling ◽  
Coupling Device

scholarly journals Reliability and Accuracy of Remote Fiberoptic Nasopharyngolaryngoscopy in the Pediatric Population

2020 ◽  
pp. 014556132091910
Author(s):  
Lauren E. Miller ◽  
Adva Buzi ◽  
Ashley Williams ◽  
Rachel S. Rogers ◽  
Angel G. Ortiz ◽  
...  
Keyword(s):  
Pediatric Population ◽  
Upper Airway ◽  
Office Visit ◽  
Rater Agreement ◽  
Vocal Cords ◽  
Coupling Device ◽  
Overall Evaluation ◽  
Survey Results ◽  
Device Use ◽  
False Vocal

Introduction: Telemedicine is an increasingly prevalent component of medical practice. In otolaryngology, there is the potential for telemedicine services to be performed in conjunction with device use, such as with a nasolaryngoscope. This study evaluates the reliability of remote examinations of the upper airway through an iPhone recording using a coupling device attached to a nasopharyngolaryngoscope (NPL). Methods: A prospective, blinded study was performed for pediatric patients requiring an NPL during an office visit. The NPL was performed using a coupling device attached to a smartphone to record the examination. A second, remote otolaryngologist then evaluated the recorded examination. Both otolaryngologists evaluated findings of anatomic sites including nasopharynx, oropharynx, base of tongue, larynx including subsites of epiglottis, arytenoids, aryepiglottic folds, false vocal cords, true vocal cords, patency of airway, and diagnostic impression, all of which were documented through a survey. Results of the survey were evaluated through inter-rater agreement using the κ statistic. Results: Forty-five patients underwent an NPL, all of which were included in the study. The average age was 4.9 years. The most common complaint requiring NPL was noisy breathing (n = 16). The inter-rater agreement for overall diagnosis was 0.74 with 80% percent agreement, rated as “good.” Other anatomic subsites with “good” or better inter-rater agreement were nasopharynx (0.75), oropharynx (0.75), and true vocal cords (0.71), with strong percentage agreement of 89%, 91%, and 87%, respectively. Both users of the adaptor found the recording setup to run smoothly. Conclusion: A telemedicine device for NPL use demonstrates strong diagnostic accuracy across providers and good overall evaluation. It holds potential for use in remote settings.

scholarly journals Mechanical Anastomotic Coupling Device versus Hand-sewn Venous Anastomosis in Head and Neck Reconstruction—An Analysis of 1694 Venous Anastomoses

2021 ◽  
Vol 54 (02) ◽  
pp. 118-123
Author(s):  
Rajan Arora ◽  
Kripa Shanker Mishra ◽  
Hemant T. Bhoye ◽  
Ajay Kumar Dewan ◽  
Ravi K. Singh ◽  
...  
Keyword(s):  
Venous Thrombosis ◽  
Head And Neck ◽  
Free Tissue Transfer ◽  
Effective Alternative ◽  
Head And Neck Reconstruction ◽  
Venous Anastomosis ◽  
Neck Reconstruction ◽  
Coupling Device ◽  
Tissue Transfer ◽  
Flap Loss

Abstract Background There is a steep learning curve to attain a consistently good result in microvascular surgery. The venous anastomosis is a critical step in free-tissue transfer. The margin of error is less and the outcome depends on the surgeon’s skill and technique. Mechanical anastomotic coupling device (MACD) has been proven to be an effective alternative to hand-sewn (HS) technique for venous anastomosis, as it requires lesser skill. However, its feasibility of application in emerging economy countries is yet to be established. Material and Method We retrospectively analyzed the data of patients who underwent free-tissue transfer for head and neck reconstruction between July 2015 and October 2020. Based on the technique used for the venous anastomosis, the patients were divided into an HS technique and MACD group. Patient characteristics and outcomes were measured. Result A total of 1694 venous anastomoses were performed during the study period. There were 966 patients in the HS technique group and 719 in the MACD group. There was no statistically significant difference between the two groups in terms of age, sex, prior radiotherapy, prior surgery, and comorbidities. Venous thrombosis was noted in 62 (6.4%) patients in the HS technique group and 7 (0.97%) in the MACD group (p = 0.000). The mean time taken for venous anastomosis in the HS group was 17 ± 4 minutes, and in the MACD group, it was 5 ± 2 minutes (p = 0.0001). Twenty-five (2.56%) patients in the HS group and 4 (0.55%) patients in MACD group had flap loss (p = 0.001). Conclusion MACD is an effective alternative for HS technique for venous anastomosis. There is a significant reduction in anastomosis time, flap loss, and return to operation theater due to venous thrombosis. MACD reduces the surgeon’s strain, especially in a high-volume center. Prospective randomized studies including economic analysis are required to prove the cost-effectiveness of coupler devices.

Structural, optical and magneto-electric coupling analysis in ‘Y’ doped double perovskite La2NiMnO6 nanoparticles

2020 ◽  
Vol 532 ◽  
pp. 110688 ◽  
Author(s):  
Manish Kumar ◽  
Brijmohan Prajapati ◽  
Abhishek Singh ◽  
Shiv Kumar ◽  
Arvind Kumar ◽  
...  
Keyword(s):  
Double Perovskite ◽  
Coupling Analysis ◽  
Electric Coupling

scholarly journals Effect of epitaxial strain on the magneto-electric coupling of YMnO3 thin films

2009 ◽  
Vol 106 (1) ◽  
pp. 014109 ◽  
Author(s):  
A. K. Singh ◽  
M. Snure ◽  
A. Tiwari ◽  
S. Patnaik
Keyword(s):  
Thin Films ◽  
Electric Coupling ◽  
Epitaxial Strain

On the inter-layer magneto-electric coupling in BiFeO3/SrRuO3 heterostructure

2017 ◽  
Vol 111 (10) ◽  
pp. 102902 ◽  
Author(s):  
Anomitra Sil ◽  
Aditya A. Wagh ◽  
Deepak Sharma ◽  
Rajeev Ranjan ◽  
P. S. Anil Kumar
Keyword(s):  
Electric Coupling

What is the coupling device?

1977 ◽  
Vol 2 (7) ◽  
pp. N158-N159 ◽  
Author(s):  
R.J.P. Williams
Keyword(s):  
Coupling Device

scholarly journals ESTIMATION OF THE EFFICIENCY OF THE LUBRICATION OF THE WORKING SURFACES OF THE SADDLE-COUPLING DEVICE OF THE FOREST TRUCK

2021 ◽  
Author(s):  
Valeriy Posmetev ◽  
Vadim Nikonov ◽  
Viktor Posmetev
Keyword(s):  
Computer Experiments ◽  
Base Plate ◽  
Optimal Number ◽  
Actual Problem ◽  
Premature Failure ◽  
Coupling Device ◽  
Excessive Consumption ◽  
Operational Factors ◽  
Friction Surfaces ◽  
The Cost

The importance of the need for further constructive improvement of fifth-wheel couplings of timber tractors with semi-trailers has been substantiated. The main operational factors arising during the movement of a timber tractor with a semitrailer in the process of hauling timber and affecting the premature failure of the main parts of the fifth wheel coupling are considered. The influence on the resource of the fifth wheel coupling device of strict fulfillment of the mandatory operations of periodic lubrication of the saddle and the base plate of the semitrailer in the process of connecting and disconnecting it with a timber tractor is given. Described is the actual problem associated with excessive consumption of lubricant in the process of applying it to the friction surfaces of the saddle and the base plate of the semitrailer by the traditional method of extrusion. A possible method of dosed supply of the required volume of lubricant through the optimal number of lubrication holes to the friction surfaces is considered, which makes it possible to significantly reduce the cost of maintaining the operable state of the fifth wheel coupling. In order to preliminary evaluate the application of this lubrication method, which ensures the effective functioning of the fifth wheel coupling of a timber tractor with a semitrailer, several series of computer experiments were performed to determine the optimal number of lubrication holes in the saddle that evenly and dosed distribute the lubricant between the saddle and the base plate of the semitrailer.

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