Tricuspid flow synchronized cardiac electrotherapy system with b

Details Tricuspid flow synchronized cardiac electrotherapy system with b Tricuspid flow synchronized cardiac electrotherapy system with b

1991-03-25

1993-09-14

Kamm, William E.

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

607 19, A61N 1365

Patent

active

052439763

ABSTRACT:
A cardiac electrotherapy system has flow velocity measurement capability for measuring a velocity of blood flow at a region of a tricuspid valve of a heart. A pacing system is provided which outputs a pacing electrical signal to the heart. A control unit which is responsive to a measured flow velocity from the flow velocity measurement unit detects heart irregularities and controls electrical pacing signals to the heart. In detecting heart irregularities, peak flow velocity waveforms are detected and analyzed. The flow velocity measurement employs a Doppler ultrasonic transducer which is mounted on a cardiac pacing lead in spaced relation to a pacing electrode at a distal end of the lead. When the pacing lead is inserted in the heart, the pacing electrode is placed at an apex of the right ventricle and the piezoelectric Doppler transducer is positioned at or near the tricuspid valve. The flow velocity transducer is preferably formed as an annular piezo body having associated electrodes. An ultrasonic lens directs ultrasonic rays from the transducer and an ultrasonic wave inhibitor structure prevents transmission of ultrasonic waves in an undesired direction. With the cardiac electrotherapy system disclosed, improved and more reliable monitoring of cardiac activity is achieved and a corresponding improved pacing results.

REFERENCES:
patent: 3903897 (1975-09-01), Woollons et al.
patent: 3938502 (1976-02-01), Bom
patent: 3942534 (1976-03-01), Allen et al.
patent: 4249539 (1981-02-01), Vilkomerson et al.
patent: 4291707 (1981-09-01), Heilman et al.
patent: 4319580 (1982-03-01), Colley et al.
patent: 4475551 (1984-10-01), Langer et al.
patent: 4535774 (1985-08-01), Olson
patent: 4572191 (1986-02-01), Mirowski et al.
patent: 4614192 (1986-09-01), Imran et al.
patent: 4662377 (1987-05-01), Heilman et al.
patent: 4686987 (1987-08-01), Salo et al.
patent: 4697595 (1987-10-01), Breyer et al.
patent: 4706681 (1987-11-01), Breyer et al.
patent: 4766902 (1988-08-01), Schroeppel
patent: 4766905 (1988-08-01), Namekawa
patent: 4768911 (1988-09-01), Balter
patent: 4768912 (1988-09-01), Miura
patent: 4770177 (1988-09-01), Schroeppel
patent: 4771788 (1988-09-01), Millar
patent: 4771789 (1988-09-01), Namekawa
patent: 4773401 (1988-09-01), Citak et al.
patent: 4774950 (1988-10-01), Cohen
patent: 4779617 (1988-10-01), Whigham
patent: 4790317 (1988-12-01), Davies
patent: 4790322 (1988-12-01), Iinuma
patent: 4790323 (1988-12-01), Leavitt et al.
patent: 4791931 (1988-12-01), Slate
patent: 4802481 (1989-02-01), Schroeppel
patent: 4802490 (1989-02-01), Johnston
patent: 4917115 (1990-04-01), Flamming
patent: 4936304 (1990-06-01), Kresh et al.
patent: 4967749 (1990-11-01), Cohen
patent: 5003976 (1991-04-01), Alt
patent: 5031615 (1991-07-01), Alt
patent: 5058583 (1991-10-01), Geddes et al.

Affiliated with

Also associated with

Rating

Tricuspid flow synchronized cardiac electrotherapy system with b does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tricuspid flow synchronized cardiac electrotherapy system with b, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tricuspid flow synchronized cardiac electrotherapy system with b will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2020602