Surgery – Respiratory method or device – Ozone or ion generation
Patent
1976-11-22
1978-09-05
Padgett, Benjamin R.
Surgery
Respiratory method or device
Ozone or ion generation
206 05, 222130, 222193, 222389, 222395, 222491, 424 19, A61M 3100
Patent
active
041112016
ABSTRACT:
An osmotic system for delivering an agent is disclosed. The system comprises a wall surrounding a compartment and has a passageway through the wall for delivering agent from the compartment. The wall is formed of a material permeable to the passage of an external fluid and impermeable to the passage of agent. The compartment contains an agent that is soluble in the fluid and exhibits an osmotic pressure gradient across the wall against the fluid, or the compartment contains an agent that has limited solubility in the fluid and exhibits a limited osmotic pressure gradient across the wall against the fluid. The compartment also contains a suspending agent and a delivery member for increasing the amount of agent delivered from the system. The delivery member comprises a semipermeable film surrounding an osmotically effective compound and it is able to increase in volume over time. In operation, agent is delivered from the system through the passageway at a controlled rate by fluid being imbibed through the wall into the compartment to produce a solution or suspension containing agent, and for urging the member to increase in volume and fill the compartment, whereby agent is released at a rate controlled by the permeability of the wall, the osmotic pressure gradient across the wall, and the increase in volume of the member over a prolonged period of time.
REFERENCES:
patent: 3247066 (1966-04-01), Milosovich, Jr.
patent: 3732865 (1973-05-01), Higuchi et al.
patent: 3760805 (1973-09-01), Higuchi
patent: 3760984 (1973-09-01), Theeuwes
patent: 3828777 (1974-08-01), Ness
patent: 3916899 (1975-11-01), Theeuwes et al.
patent: 3948254 (1976-04-01), Zaffaroni
patent: 3952741 (1976-04-01), Baker
patent: 3977404 (1976-08-01), Theeuwes
patent: 3993073 (1976-11-01), Zaffaroni
patent: 4008719 (1977-02-01), Theeuwes et al.
patent: 4014334 (1977-03-01), Theeuwes et al.
patent: 4016880 (1977-04-01), Theeuwes et al.
patent: 4036227 (1977-07-01), Zaffaroni et al.
patent: 4036228 (1977-07-01), Theeuwes
ALZA Corporation
Ciotti Thomas E.
Gron T. S
Mandell Edward L.
Padgett Benjamin R.
LandOfFree
Osmotic system for delivering selected beneficial agents having does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Osmotic system for delivering selected beneficial agents having , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Osmotic system for delivering selected beneficial agents having will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2089223