The Rigid Tube as an Alternative in Controlling the Problematic Airway

<p>Bronchoscopic foreign body removal is a potentially dangerous and challenging procedure in pediatric surgery. bronchoscopy under general anaesthesia is the gold standard of diagnosis and management of foreign body aspiration. A large ventilating channel and better control over the tip of the instrument and cheaper instrument are the merits of rigid bronchoscopy over flexible one. Traditionally a rigid tube alone is used for this purpose which has extreme limitations of vision and it is risky. Foreign body aspiration typically occurs in 6 to 18 month age and the size of glottis is very small at this age. In Indian children who are small and malnourished the large assembly of sheath and telescope mounted forceps does not pass through the glottis. To overcome the limitations of the traditional equipment I designed my own bronchoscopy equipment by my 15 year of experience in bronchoscopy. This type of device is reported for the first time in medical literature and patent is filed for it at Mumbai office.</p><p> </p>

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Treatment of Choking

PEDIATRICS ◽

10.1542/peds.71.2.300 ◽

1983 ◽

Vol 71 (2) ◽

pp. 300-300

Author(s):

HOWARD EIGEN

Keyword(s):

Airway Obstruction ◽

Point Of View ◽

Central Airway Obstruction ◽

Valid Model ◽

Rigid Tube ◽

Ball Rolling ◽

Interesting Study ◽

Central Airway

To the Editor.— The controversy over which method provides the best relief of central airway obstruction has been marked by the publishing of a myriad of "Special Comments," editorials, and statements, and a dearth of scientific studies. The interesting study by Day and co-workers1 brings a new point of view to this problem by looking at ballistic forces. The question remains as to whether the model of a ball rolling free in a rigid tube is a valid model for soft food lodged in a distensible airway.

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Fiberoptic or Rigid Tube

JAMA ◽

10.1001/jama.1974.03230290018014 ◽

1974 ◽

Vol 228 (4) ◽

pp. 462

Author(s):

Regis A. Wolff

Keyword(s):

Rigid Tube

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Rigid Tube Model Predictive Control for Linear Sampled–data Systems

IFAC-PapersOnLine ◽

10.1016/j.ifacol.2017.08.903 ◽

2017 ◽

Vol 50 (1) ◽

pp. 9840-9845 ◽

Cited By ~ 1

Author(s):

F.A.C.C. Fontes ◽

S.V. Raković ◽

I.V. Kolmanovsky

Keyword(s):

Model Predictive Control ◽

Predictive Control ◽

Tube Model ◽

Data Systems ◽

Sampled Data ◽

Rigid Tube

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Pulsatile Flow in a Rigid Tube

The Physics of Pulsatile Flow ◽

10.1007/978-1-4612-1282-9_4 ◽

2000 ◽

pp. 67-112 ◽

Cited By ~ 3

Author(s):

M. Zamir

Keyword(s):

Pulsatile Flow ◽

Rigid Tube

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Response of a viscoelastic layer (mucus) to turbulent airflow in a rigid tube

Technology and Health Care ◽

10.3233/thc-2008-16504 ◽

2008 ◽

Vol 16 (5) ◽

pp. 355-366 ◽

Cited By ~ 4

Author(s):

Cahit A. Evrensel ◽

Raquib U. Khan ◽

Peter E. Krumpe

Keyword(s):

Viscoelastic Layer ◽

Rigid Tube ◽

Turbulent Airflow

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Tracheal intubation with the rigid tube for laryngoscopy – a new method [Retraction]

Therapeutics and Clinical Risk Management ◽

10.2147/tcrm.s224147 ◽

2019 ◽

Vol Volume 15 ◽

pp. 957-958

Author(s):

Ioan Florin Marchis ◽

Doinel Radeanu ◽

Marcel Cosgarea

Keyword(s):

Tracheal Intubation ◽

New Method ◽

Rigid Tube

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A Model for an Acoustically Driven Microbubble Inside a Rigid Tube

Journal of Fluids Engineering ◽

10.1115/1.4028337 ◽

2014 ◽

Vol 137 (2) ◽

Cited By ~ 1

Author(s):

Adnan Qamar ◽

Ravi Samtaney

Keyword(s):

Bubble Radius ◽

Coupled Model ◽

Tube Diameter ◽

Navier Stokes ◽

Navier Stokes Equation ◽

Rigid Tube ◽

Basic Model ◽

Proposed Model ◽

D 12 ◽

Bubble Fragmentation

A theoretical framework to model the dynamics of acoustically driven microbubble inside a rigid tube is presented. The proposed model is not a variant of the conventional Rayleigh–Plesset category of models. It is derived from the reduced Navier–Stokes equation and is coupled with the evolving flow field solution inside the tube by a similarity transformation approach. The results are computed, and compared with experiments available in literature, for the initial bubble radius of Ro = 1.5 μm and 2 μm for the tube diameter of D = 12 μm and 200 μm with the acoustic parameters as utilized in the experiments. Results compare quite well with the existing experimental data. When compared to our earlier basic model, better agreement on a larger tube diameter is obtained with the proposed coupled model. The model also predicts, accurately, bubble fragmentation in terms of acoustic and geometric parameters.

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