Heat-activated drug delivery system and thermal actuators theref

Details Heat-activated drug delivery system and thermal actuators theref Heat-activated drug delivery system and thermal actuators theref

1990-05-15

1993-06-29

Ostrager, Allen M.

Power plants

Motor operated by expansion and/or contraction of a unit of...

Mass is a solid

F03G 706

Patent

active

052223620

ABSTRACT:
A thermal actuator, also known as a heat capacitance motor, derives its energy from the physical expansion of paraffin wax as it changes from solid to liquid when heated within an enclosure such as a cylinder. This energy is converted into mechanical force which causes translation of a piston slidably mounted within the cylinder, thus creating hydrostatic pressure which is converted to work. The thermal actuator may be utilized in various drug delivery systems in which the hydrostatic pressure created by the actuator is used expel the contents of a syringe.

REFERENCES:
patent: 3121331 (1964-02-01), Von Platen
patent: 3149455 (1964-09-01), Daly et al.
patent: 4337621 (1982-07-01), Lane, Jr. et al.
patent: 4668220 (1987-05-01), Hawrylenko
patent: 4678408 (1987-07-01), Nason et al.
patent: 4718893 (1988-01-01), Dorman et al.
patent: 4744786 (1988-05-01), Hooven
patent: 4769008 (1988-09-01), Hessel
patent: 4772263 (1988-09-01), Dorman et al.
patent: 4804368 (1989-02-01), Skakoon et al.

Affiliated with

Also associated with

Rating

Heat-activated drug delivery system and thermal actuators theref does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Heat-activated drug delivery system and thermal actuators theref, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heat-activated drug delivery system and thermal actuators theref will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1747432