Patent · US Expired

Floatation chamber for use in a chest drainage device

US4963135A · kind A · utility

11Cited by
14References
21Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 9, 1989
Grant dateOct 16, 1990
Priority date—
Expiry dateJun 9, 2009

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T137/3109
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

A chest drainage device having a collection chamber, a water seal chamber and a suction control chamber wherein the suction control chamber includes first and second columns and wherein the top end of the first column is open to the atmosphere and the top end of the second column is in flow communication with a vacuum source. The bottom end of the first and second columns are preferably in flow communication with a float chamber to increase the effective dynamic water height of the liquid in the suction chamber and to decrease the required overall height of suction control chamber of the chest drainage device while maintaining same operational range as prior chest drainage devices.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.