Blood pump

Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Corporeal artificial heart – heart assist – control...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

A61F 222

Patent

active

050890166

ABSTRACT:
A blood pump having a toroidal shaped chamber concentrically positioned around a cylindrically shaped hydraulic pump. The toroidal chamber has two toroidal shaped portions, one portion having a substantially rigid external wall and the other having an external wall formed of a flexible membrane. The chamber has an inlet and output port suitable for connection to a blood flow supply. The flexible wall portion of the toroidal chamber is enclosed within a hydraulic chamber, fluidically coupled to the hydraulic pump. The hydraulic pump is controlled so that an increase of pressure in the hydraulic chamber results in a decrease of volume in the toroidal chamber, thus providing for pumping of the blood through that portion of the chamber. The toroidal shape provides for optimal non-coagulating flow, while the rigid wall of the chamber, together with the flexible membrane provide for membrane motion along only one axis, normal to the circumference of the toroid, preventing damage to the membrane. The blood flow inlet port is positioned to direct fluid in a tangential direction against the perimeter wall of the toroid.

REFERENCES:
patent: 3955557 (1976-05-01), Takagi
patent: 4091471 (1978-05-01), Richter
patent: 4250872 (1981-02-01), Tamari
patent: 4468177 (1984-08-01), Strimling
patent: 4755111 (1988-07-01), Cocchi et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Blood pump does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Blood pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Blood pump will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1820017

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.