Surgery – Controlled release therapeutic device or system – Implanted dynamic device or system
Patent
1996-06-12
1998-09-01
Bockelman, Mark
Surgery
Controlled release therapeutic device or system
Implanted dynamic device or system
604131, 604153, 604246, 222 95, A61K 922
Patent
active
058004211
ABSTRACT:
An intelligent material unit formed of an intelligent gel encapsulated within an enclosure. When the gel is actuated by a change in temperature thereof, such as heat and/or by an externally applied field such as an electrical current, electric field, magnetic field, ultrasonic energy (or sonic), microwave energy, a laser beam or a combination thereof, at least a portion of the wall of the container or enclosure is deformed to perform a mechanical function or operation; such as to valve a fluid or cause movement of the container and gel through a fluid or in a passageway. The container may be a thin-skinned flexible plastic, such as an elastomer and may be elongated or sausage-like in shape, or strip-like. It may be free travelling, cantilever-supported or otherwise mounted or attached to a device, machine or element. It may also carry a drug for delivery therefrom at a select location and time.
A system apparatus and method is also disclosed for delivering a quantity of a drug, tissue, cells, genetic material, sensor, implant or implant material, repair material, diagnostic material, protein, hormone or the like or a combination thereof to a select location in the body, such as in an artery, vein, or a portion of the digestive tract. In one form, a select amount of such a (medical) material is disposed within a so-called intelligent gel per se or in one or more small capsules or the like in or attached to such intelligent gel or a container therefor, such as a thin skinned flexible elongated balloon-like enclosure. Such elongated, narrow container or strip of electrical energy or magnetic or radio-frequency energy force responsive gel attached to or containing medical material, is inserted into a body duct such as a vein or artery and is caused to "swim" or wiggle therealong to a select location therein by passing electrical energy through the blood (and vessel wall) and/or by means of an alternating magnetic or radio-frequency field controllably applied thereto with a hand-held instrument which is moved by hand to induce such movement and/or controllably may move such field in a manner to induce the gel to move or swim to the select location. In a particular form, the drug and gel are small enough in size to pass into the bloodstream through the wall of the small intestine after being swallowed, as a drug unit along with other such drug units--when so located at the select location in the body duct, the drug carried by the intelligent gel or (sausage-like) membrane or thin skin contained unit is released therefrom by biodegradation or other means, such as by radio-frequency, ultrasonic or magnetic field energy applied from outside the body or a catheter, or a combination thereof.
REFERENCES:
patent: 3831678 (1974-08-01), Mondshine
patent: 4522698 (1985-06-01), Maget
patent: 4639244 (1987-01-01), Rizk et al.
patent: 4753761 (1988-06-01), Suzuki
patent: 4772407 (1988-09-01), Carlson
patent: 4900387 (1990-02-01), Johnson
patent: 4978337 (1990-12-01), Theeuwes
patent: 4990560 (1991-02-01), Ikeno
patent: 5032307 (1991-07-01), Carlson
patent: 5032308 (1991-07-01), Knobel et al.
patent: 5041107 (1991-08-01), Heil
patent: 5075021 (1991-12-01), Carlson
patent: 5100933 (1992-03-01), Tanaka et al.
patent: 5125759 (1992-06-01), Chun
patent: 5152758 (1992-10-01), Kaetsu et al.
patent: 5192440 (1993-03-01), Sengbusch
patent: 5197982 (1993-03-01), Goldsmith et al.
patent: 5213713 (1993-05-01), Reitz
patent: 5250167 (1993-10-01), Adolf et al.
patent: 5252249 (1993-10-01), Kurachi et al.
patent: 5252250 (1993-10-01), Endo et al.
patent: 5266229 (1993-11-01), Tomizawa et al.
patent: 5290821 (1994-03-01), Sakurai et al.
patent: 5294426 (1994-03-01), Sekine et al.
patent: 5326489 (1994-07-01), Asako et al.
patent: 5332517 (1994-07-01), Torii et al.
patent: 5352718 (1994-10-01), Ishino et al.
patent: 5389222 (1995-02-01), Shahinpoor
patent: 5412006 (1995-05-01), Fisher et al.
patent: 5449053 (1995-09-01), Maciejewski
patent: 5643247 (1997-07-01), Fernandez et al.
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