22
Mai
2007

Drug delivery system: a proof that the blood-brain barrier can be permeated by certain electrical devices that use pulsed energy

Googling "Salford" and "permeated blood-brain barrier", I came across this US patent (Walker et al) to adminster certain drugs, obviously by breaking down the BBB first. Well, if it works for drugs, then it "works" for chemicals from environmental pollution as well - a proof that the BBB can be permeated by certain electrical devices that use pulsed energy.

With a patent like this, the industry can't claim that there is no effect.

"Drug delivery system"
//www.patentmonkey.com/PM/patentid/6041252.aspx

Regards.

Dorothee


We claim:

1. A system for the delivery of electroporation-inducing electrical fields to a patient comprising: a plurality of electrodes adapted to be located within a predetermined three-dimensional space in a patient, said electrodes arranged to provide at least one reference electrode in electrically--conductive communication with at least two geometrically-oriented satellite electrodes; and
electrical pulse generating means for generating electroporation-inducing electrical fields incorporating control means connected to at least three of said plurality of electrodes said control means capable of varying the number and order of electrodes that participate in each pulse delivered by said pulse generating means such that a pulse many be delivered to at least said reference electrode and at least two of said satellite electrodes simultaneously.

2. A system as recited in claim 1, said control means further comprising means to control the electrical parameters and temporal relationship of the electrical pulses applied to each of said electrodes.

3. A system as recited in claim 2, wherein said control means comprises a digital computer.

4. A system as recited in claim 2, wherein said control means can apply electrical pulses of different polarity to selected electrodes so as to redefine the reference and satellite relationship as between the plurality of electrodes.

5. A system as recited in claim 1, wherein the electrical pulse generating means generates an electrical field strength in the range of approximately 0.4 kV/cm to approximately 1.3 kV/cm in the tissue of a patient.

6. A system for the delivery of electroporation-inducing electrical fields to a patient comprising: a plurality of electrodes adapted to be located within a predetermined three-dimensional space in a patient, said electrodes arranged to provide at least one reference electrode in electrically-conductive communication with at least two geometrically-oriented satellite electrodes; electrical pulse generating means for generating electroporation-inducing electrical fields incorporating control means connected to at least three of said plurality of electrodes capable of varying the number and order of electrodes that participate in each pulse delivered such that a pulse may be delivered to at least said reference electrode and at least two of said satellite electrodes simultaneously; and control means connecting said electrical pulse generating means to at least three of said electrodes, which control means directs the electrical parameters and temporal relationship of the electrical pulses applied to each of said electrodes.

7. A system as recited in claim 6, wherein said control means comprises a digital computer.

8. A system as recited in claim 6, wherein said control means can apply electrical pulses of different polarity lo selected electrodes so as to redefine the reference and satellite relationship as between the plurality of electrodes.

9. A system as recited in claim 6, wherein the electrical pulse generating means generates an electrical field strength in the range of approximately 0.4 kV/cm to approximately 1.3 kV/cm in the issue of a patient.

10. A system for the delivery of electroporation-inducing electrical fields to a patient comprising: a plurality of electrodes adapted to be located within a predetermined three-dimensional space in a patient, said electrodes arranged to provide at least one reference electrode in electrically-conductive communication with at least two geometrically-oriented satellite electrodes; electrical pulse generating means for generating electroporation-inducing electrical fields incorporating control means connected to at least three of said plurality of electrodes capable of varying the number and order of electrodes that participate in each pulse delivered such that a pulse may be delivered to at least said reference electrode and at least two of said satellite electrodes simultaneously; and control means connecting said electrical pulse generating means to at least three of said electrodes, which control means can apply electrical pulses of different polarity to selected electrodes so as to redefine the reference and satellite relationship as between the plurality of electrodes.

11. A system as recited in claim 10, wherein said control means comprises a digital computer.

12. A system as recited in claim 10, wherein the electrical pulse generating means generates an electrical field strength in the range of approximately 0.4 kV/cm to approximately 1.3 kV/cm in the tissue of a patient.

--------

Yet another patent
//www.buergerwelle.de/pdf/yet_another_patent.htm



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