Surgery – Respiratory method or device – Respiratory gas supply means enters mouth or tracheotomy...
Patent
1988-06-23
1989-12-12
Jaworski, Francis
Surgery
Respiratory method or device
Respiratory gas supply means enters mouth or tracheotomy...
12866204, 12866206, A61M 1600, A61B 800
Patent
active
048860590
ABSTRACT:
Blood flow in the aorta and pulmonary artery of a mammal, most typically a human, is measured volumetrically by a non-invasive, ultrasound apparatus. The apparatus (10) comprises a tracheal tube or probe with of flexible tubing (11) having a transducer assembly (21) mounted at one end the tube. The transducer assembly (21) is disposed to transmit ultrasound in selected directions. Electrical conductors (24) extend the length of the probe from the transducer assembly. Improved means is provided to positively locate the probe in the trachea and to urge the ultrasound transducer assembly (21) into intimate contact with the inner wall of the trachea. The improved location and urging means comprises a single inflatable asymmetric balloon cuff member (29) mounted on the tube (11) in proximity to and above the transducer assembly (21) and extending around the entire periphery of the tube, the balloon being mounted on the tube such that when inflated the balloon sealingly engages the tracheal wall while urging the transducer assembly into contact with the inner wall of the trachea.
The asymmetric balloon cuff is conveniently formed in a mold prepared by angularily sectioning the conical portion of a pair of funnel shaped mold forms at equal angles relative to the central axis thereof, rotating one of the sectioned funnel forms 180.degree. about the axis and then joining the two forms at the section plane to form the balloon cuff mold form.
REFERENCES:
patent: 3498290 (1970-03-01), Shaw et al.
patent: 3817089 (1974-06-01), Eggleton et al.
patent: 4176660 (1979-12-01), Mylrea et al.
patent: 4304239 (1981-12-01), Perlin
patent: 4331156 (1982-05-01), Apple et al.
patent: 4607643 (1986-08-01), Bell et al.
patent: 4671295 (1987-06-01), Abrams et al.
patent: 4685458 (1987-08-01), Leckrone
patent: 4700700 (1987-10-01), Eliachar
patent: 4722347 (1988-02-01), Abrams et al.
patent: 4794931 (1989-01-01), Yock
Histand et al, "Ultrasonic Pulsed Doppler Transesophageal Measurement of Aortic Haemodynamics in Humans", Ultrasonic, Sep. 1979.
Hisanaga et al, "A New Trans-Digestive-Tract Scanner with a Gastro-Fiber Scope", Proceedings of the 23rd Annual Meeting of the Aium, 1978, p. 1705.
Wells et al, "Ultrasound Transesophageal Measurement of Cardiac Output", Conference 1978 Advances in Bioeng, San Francisco, Calif., pp. 121-123, Dec. 1978.
Olson et al, "A Non Destructive Ultrasound Technique to Measure Diameter and Blood Flow in Arteries", IEEE Transaction on Biomed. Eng., vol. BME-21, No. 2, 3/1974, pp. 168-171.
Applied Biometrics Incorporated
Jaworski Francis
LandOfFree
Endotracheal tube with asymmetric balloon does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Endotracheal tube with asymmetric balloon, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Endotracheal tube with asymmetric balloon will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2116040