Drainage apparatus with vacuum control

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4455141
SERIAL NO

06386241

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A drainage apparatus has a collection chamber connected to the pleural cavity of a patient with a vacuum pump connected through a water seal chamber to the collection chamber. A pressure regulating chamber maintains the negative pressure created by the vacuum pump in the water seal chamber at a desired negative pressure. When there is an increase in negative pressure within the pleural cavity of the patient, atmospheric pressure is transmitted through a liquid at a selected level in an excess negativity chamber to the collection chamber to reduce the negative pressure in the collection chamber and the pleural cavity of the patient connected thereto to a selected maximum above the negative pressure maintained in the collection chamber by the vacuum pump and regulated by the pressure regulating chamber.

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First Claim

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Patent Owner(s)

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International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Todd, Edward P 3145 Warren Wood Wynd, Lexington, KY 40502 2 33

Cited Art Landscape

Patent Info (Count) # Cites Year
 
KURTZ, ROBERT J. (1)
* 4324244 Two-chamber underwater drainage apparatus with oneway outflow valve and dual hangar retainers 8 1980
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Snyder Laboratories, Inc. (1)
* 4534765 Modular drainage apparatus having excess negativity control 9 1982
 
TECHNOLOGY HOLDING COMPANY II (3)
* 4715856 Air leak detection system for chest fluid collection bottles and blow-out prevention baffle therefor 10 1985
* 5026358 Drainage device 26 1990
* 5300050 Drainage device 53 1993
 
DEKNATEL TECHNOLOGY CORPORATION (2)
* 4519796 Thoracic drainage device 28 1983
* 5507734 Drainage device 47 1994
 
THE HENRY M. JACKSON FOUNDATION FOR THE ADVANCEMENT OF MILITARY MEDICINE, INC. (2)
8636721 Portable hand pump for evacuation of fluids 3 2004
9393353 Portable hand pump for evacuation of fluids 0 2014
 
SHERWOOD SERVICES AG (3)
* 4963135 Floatation chamber for use in a chest drainage device 5 1989
* 4994050 Float chamber and sleeve for use in a chest drainage device 6 1989
* 5931821 Chest drainage unit with controlled automatic excess negativity relief feature 53 1997
 
ATRIUM MEDICAL CORPORATION (2)
8992493 Chest drainage systems and methods 0 2011
9314599 Pleural drainage system and method of use 0 2014
 
BOEHRINGER LABORATORIES, INC. (3)
* 4767417 Drainage device for collecting liquids from a body cavity 38 1986
* 4781707 Process and apparatus for collecting blood from a body cavity for autotransfusion 55 1986
* 5372593 Process and apparatus for collecting blood of a patient for autotransfusion 25 1993
 
ATRIUM MEDICAL DEVICES (1)
8882678 Pleural drainage system and method of use 0 2010
 
Bioresearch, Inc. (1)
* 4648874 Air leak detection chamber for drainage device 4 1985
 
C.R. BARD, INC. (5)
8337475 Corporeal drainage system 5 2005
8177772 Catheter connection systems 18 2006
8235971 Catheter connection systems 9 2010
* 2011/0009,849 CATHETER CONNECTION SYSTEMS 5 2010
9295764 Corporeal drainage system 0 2014
 
VANDERBILT UNIVERSITY (1)
* 4772277 Chest cavity evacuation apparatus with resettable air volume meter 2 1987
 
ZIMMER ORTHOPAEDIC SURGICAL PRODUCTS, INC. (1)
* 4601715 Chest drainage device with sound muffling tube 7 1984
* Cited By Examiner