Patent · US Expired

Two stage venous return catheter

US4787882A · kind A · utility

243Cited by
6References
18Claims
0Family size

Assignee

Inventor

Key dates

Filing dateDec 23, 1986
Grant dateNov 29, 1988
Priority date—
Expiry dateDec 23, 2006

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61M2025/0031
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

Catheters are disclosed which are adapted for insertion into the heart and which include at least one inlet opening at the front end thereof, at least one outlet opening at the other end thereof, and at least one intermediate opening therebetween, and which include a cylindrical sleeve for opening and closing the intermediate opening so that it can be selectively opened and closed thereby. These catheters are employed most particularly for the withdrawal of blood from both the inferior vena cava and from the right auricle and/or from the superior vena cava of the heart.

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