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US 4,541,433 AGranted
Cardiac output monitor
AssigneeMedtronic, Inc.
InventorMichael D. Baudino
Life of this patent
Estimating the term…
Abstract
A cardiac output monitor of the type including an ultrasound crystal for use as a doppler flowmeter. The monitor is designed for mounting directly to a blood vessel, and is provided with a novel fixation apparatus which allows for easy and secure attachment to the blood vessel. The fixation apparatus includes two parallel fixation wires especially adapted for location in the blood vessel wall, without the danger of piercing the vessel wall.
Claims5
A biomedical transducer for mounting to the wall of a blood vessel, comprising:
- a transducer head having a proximal end, a distal end, and a ventral surface;
- a transducer, mounted to said transducer head;
- two fixation wires each having a first segment extending from said ventral surface of said transducer head for a first distance less than the thickness of the wall of said blood vessel and a second segment extending for a second distance, parallel to the ventral surface of said transducer head and terminating in ventrally facing bevels, wherein said second segments of said fixation wires extend distal to said first segments of said fixation wires and extend from the distal end of said transducer head for a distance less than the thickness of the wall of said blood vessel;
- and
- a transducer lead means coupled to the proximal end of said transducer head, for coupling said transducer to monitoring equipment.
2 more elements
A biomedical transducer for mounting to the wall of a blood vessel, comprising:
- a transducer head having a proximal end, a distal end, and a ventral surface;
- a transducer, mounted to said transducer head;
- two fixation wires each having a first segment extending from said ventral surface of said transducer head for a first distance less than the thickness of the wall of said blood vessel and a second segment extending for a second distance, parallel to the ventral surface of said transducer head, wherein said second segments of said fixation wires extend distal to said first segments of said fixation wires and extend from the distal end of said transducer head for a distance less than the thickness of the wall of said blood vessel;
- and
- a transducer lead means coupled to the proximal end of said transducer head, for coupling said transducer to monitoring equipment.
2 more elements
Dependencies are inferred from the claim text.