Method of treating movement disorders by brain infusion
First Claim
1. A method of using one or more drugs to treat a movement disorder resulting in abnormal motor behavior by means of an implantable pump and a catheter having a proximal end coupled to said pump and a discharge portion for infusing therapeutic dosages of said one or more drugs comprising the steps of:
- surgically implanting said catheter in the brain so that the discharge portion lies adjacent to a predetermined infusion site in the brain wherein said predetermined infusion site is selected from the group consisting of ventrolateral thalamus (Thal), internal segment of globus pallidus (GPi), substantia nigra pars reticulata (SNr), subthalamic nucleus (STN), external segment of globus pallidus (GPe), striatum, and neostriatum; and
operating said pump to discharge a predetermined dosage of said one or more drugs through said discharge portion of said catheter into said infusion site, whereby said abnormal motor behavior is therapeutically treated.
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Accused Products
Abstract
The present invention is directed to techniques and apparatus for infusing drugs into the brain to treat movement disorders resulting in abnormal motor behavior. The invention employs an implantable pump and a catheter, the catheter having a proximal end coupled to the pump and a discharge portion for placement adjacent a predetermined infusion site in the brain for infusing therapeutic dosages of the one or more drugs into the brain. The pump is operated to discharge a predetermined dosage of the one or more drugs through the discharge portion of the catheter into the infusion site. A sensor may be used in combination with the implantable pump and catheter, whereby the sensor generates a signal relating to the extent of the abnormal motor behavior. The therapeutic dosage is regulated so that the dosage is adjusted in response to an increase in the abnormal behavior to decrease the abnormal motor behavior.
314 Citations
25 Claims
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1. A method of using one or more drugs to treat a movement disorder resulting in abnormal motor behavior by means of an implantable pump and a catheter having a proximal end coupled to said pump and a discharge portion for infusing therapeutic dosages of said one or more drugs comprising the steps of:
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surgically implanting said catheter in the brain so that the discharge portion lies adjacent to a predetermined infusion site in the brain wherein said predetermined infusion site is selected from the group consisting of ventrolateral thalamus (Thal), internal segment of globus pallidus (GPi), substantia nigra pars reticulata (SNr), subthalamic nucleus (STN), external segment of globus pallidus (GPe), striatum, and neostriatum; and operating said pump to discharge a predetermined dosage of said one or more drugs through said discharge portion of said catheter into said infusion site, whereby said abnormal motor behavior is therapeutically treated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of using one or more drugs to treat a movement disorder resulting in abnormal motor behavior by means of an implantable pump and a catheter having a proximal end coupled to said pump and a discharge portion for infusing therapeutic dosages of at least one drug comprising the steps of:
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surgically implanting said catheter in the brain so that the discharge portion lies adjacent to a predetermined infusion site in the brain; and implanting an implantable sensor for generating a signal for detecting the extent of abnormal motor behavior and for signaling said pump to discharge a dosage of said at least one drug through said discharge portion of said catheter into said infusion site, whereby said abnormal motor behavior is therapeutically treated. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification