Pump and actuator mechanism

Details Pump and actuator mechanism Pump and actuator mechanism

1980-11-28

1983-05-24

Look, Edward K.

Pumps

Motor driven

Electric or magnetic motor

3 17, 92 50, 128 1D, 128DIG3, 310 22, 310 33, F04B 4304

Patent

active

043848290

ABSTRACT:
A pump is described in which a flexible enclosure defines a pump chamber and in which the contents of the pump chamber are expelled by movement of a pair of opposed pusher elements engaged with the enclosure. The pusher elements are displaced by at least one pair of beam springs, each of which is pivotally supported at one end and is engaged with one of the pusher elements at the other end. The ends of the beam springs opposite the pusher elements are pivoted by actuation of symmetrical solenoid armatures, causing each of the springs to be stressed. Relief of the spring stress forces the pusher elements toward each other. De-energization of the solenoid armatures permits the beam springs to pivot back to the original position upon filling of the pump chamber.

REFERENCES:
patent: 1893776 (1933-01-01), Hull
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patent: 3263105 (1966-07-01), Heyek
patent: 3308361 (1967-03-01), Nakai et al.
patent: 3633217 (1972-01-01), Lance
patent: 3963380 (1976-06-01), Thomas et al.
patent: 4167046 (1979-09-01), Portner et al.
Bindels, J. and J. Grigsby, "Considerations and Calculations about the Optimum Solenoid to be used for an Intrathoracic Artificial Heart," Trans. Amer. Soc. Artif. Int. Organs, 7:369, 1961.
Bindels, J., "Theoretical Limits of Efficiency for Solenoids to Drive Artificial Hearts," Trans. Amer. Soc. Artif. Int. Organs, 8:140, 1962.
Freebairn, D., and T. Heggs, "Solenoid Design for a Prosthetic Heart," Trans. Amer. Soc. Artif. Int. Organs, 10:166, 1964.
Fuller, J. W., H. M. Bourland, W. O'Bannon, D. Liotta, C. W. Hall and A. S. Bahler, "A Solenoid Powered Ventricular Bypass Pump," Trans. Amer. Soc. Artif. Int. Organs, 14:352, 1968.
Fuller, J. W. and L. Armijo, "Design Analysis for a Solenoid Blood Pump Actuator," IEEE Trans. Biomed. Eng., 16:184, 1969.
Portner, P. M., J. S. Jassawalla and D. H. LaForge, "An Implantable Controlled Solenoid Energy System for Driving an Artificial Heart," 7th Intersoc. Energy Conv. Eng. Conf. Proc. (1972), p. 784.
Jassawalla, J. S., D. H. LaForge and P. M. Portner, "An Implantable Left Ventricular Assist System Utilizing a Controlled Solenoid Energy Converter," 10th Intersoc. Energy Conv. Eng. Conf. (1975), p. 1466.
Jassawalla, J. S., P. J. Miller and P. M. Portner, "Evolution of an Implantable Pulsed Solenoid Cardiac Assist System," Proc. 29th Ann. Conf. Eng. Med. Biol. (1976), p. 243.
Portner, P. M., P. E. Oyer, J. S. Jassawalla, P. J. Miller, H. Chen, D. H. LaForge and K. W. Skytte, "An Implantable Permanent Left Ventricular Assist System for Man," Trans. Amer. Soc. Artif. Int. Organs, 24, 98 (1978).
Portner, P. M., P. E. Oyer, P. J. Miller, J. S. Jassawalla, A. K. Ream, S. D. Corbin and K. W. Skytte, "Evolution of the Solenoid Actuated Left Ventricular Assist System: Integration with a Pusher-Plate Pump for Intra-Abdominal Implantation in the Calf, " Artif. Organs 2, 402 (1978).
Portner, P. M., P. E. Oyer, J. S. Jassawalla, P. J. Miller, K. W. Skytte, D. H. LaForge, A. K. Ream, S. D. Corbin and M. E. Billingham, "Development and in Vivo Evaluation of the Solenoid Actuated Left Ventricular Assist System," Proc. Annual Contractors Meeting, Devices and Technology Branch, NHLBI, (1978), pp. 73-74.
Portner, P. M., P. E. Oyer, J. S. Jassawalla, P. J. Miller, K. W. Skytte, D. H. LaForge, J. S. Petrek, James Lee, A. K. Ream, M. E. Billingham, "Development and in Vivo Evaluation of the Solenoid Actuated Left Ventricular Assist System," Proc. Annual Contractors Meeting, Device and Technology Branch, NHLBI, (1979), pp. 41-42.

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