Adjustable height gastric restriction devices and methods
First Claim
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1. A method of forming a restriction in a patient, comprising:
- implanting a restriction device in a patient to form a restriction;
implanting a housing coupled to the restriction device within the patient such that a base defining a distal external surface of the housing and a body defining a proximal external surface of the housing are spaced a distance apart from one another; and
adjusting the distance between the proximal and distal external surfaces to lower a profile of the housing implanted within the patient, wherein adjusting the distance comprises changing a volume of fluid within a fluid-filled chamber extending between the base of the housing and the body of the housing to alter the distance between the base and the body, wherein changing the volume of the fluid within the fluid-filled chamber does not alter a volume of a second fluid within the restriction device or change an amount of restriction.
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Abstract
Methods and devices are provided for adjusting the height of devices in a gastric restriction system. In general, the methods and devices allow one or more implantable housings coupled to an implantable restriction device to have an adjustable height. The housing can include, for example, a fill port housing, a sensor housing, and any other type of housing that can be used in an implantable restriction system and desired to have an adjustable height. The housing can lower in profile over time, e.g., as the patient loses weight, thereby maintaining the housing in a generally predictable location where it can be found and accessed.
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Citations
16 Claims
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1. A method of forming a restriction in a patient, comprising:
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implanting a restriction device in a patient to form a restriction; implanting a housing coupled to the restriction device within the patient such that a base defining a distal external surface of the housing and a body defining a proximal external surface of the housing are spaced a distance apart from one another; and adjusting the distance between the proximal and distal external surfaces to lower a profile of the housing implanted within the patient, wherein adjusting the distance comprises changing a volume of fluid within a fluid-filled chamber extending between the base of the housing and the body of the housing to alter the distance between the base and the body, wherein changing the volume of the fluid within the fluid-filled chamber does not alter a volume of a second fluid within the restriction device or change an amount of restriction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of forming a restriction in a patient, comprising:
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implanting a restriction device in a patient to form a restriction; implanting a housing coupled to the restriction device within the patient such that a base defining a distal external surface of the housing and a body defining a proximal external surface of the housing are spaced a distance apart from one another; adjusting the distance between the proximal and distal external surfaces to lower a profile of the housing implanted within the patient; and adjusting a volume of fluid within the restriction device to change an amount of restriction, wherein adjusting the volume of the fluid within the restriction device does not alter the distance between the proximal and distal external surfaces.
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11. A method of forming a restriction in a patient, comprising:
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implanting a gastric band around a patient'"'"'s stomach to restrict fluid flow through the stomach, the gastric band having a catheter extending therefrom, the catheter extending between the gastric band and a housing that is implanted in an abdomen of the patient beneath a tissue surface such that a first fluid can flow through the catheter between the gastric band and the housing; and changing a volume of a second fluid within the housing to move a body of the housing relative to a base of the housing and thereby adjust a height of the housing, wherein changing the volume of the second fluid does not alter an amount of the first fluid that can flow through the catheter between the gastric band and the housing. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification