Closed loop gastric restriction devices and methods
First Claim
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1. A system to treat an obese patient comprising:
- a) an adjustable implantable band having a volume of fluid therein and adapted to encircle the stomach;
b) an implantable pressure sensor adapted to measure changes in fluid pressure within the band, the fluid pressure changes related to patient ingestion of food which passes through the lumen of the stomach of the patient;
c) memory adapted to store information related to ingestion of food by the patient;
d) a gain control which modifies the relationship between an input signal from the pressure sensor and an output signal, wherein the input signal is related to food passing through the stomach and the output signal is related to adjusting the volume of fluid of the band; and
e) a subcutaneous access port, wherein the pressure sensor is located within the port.
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Abstract
In some embodiments, methods to sense parameters associated with restriction procedures and/or devices are disclosed. In some embodiments, the parameters are sensed directly from the region of the procedure and/or device and in other embodiments, associated neural pathways are sensed. Methods for further optimization of the obesity treatment regimens are also disclosed.
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Citations
21 Claims
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1. A system to treat an obese patient comprising:
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a) an adjustable implantable band having a volume of fluid therein and adapted to encircle the stomach; b) an implantable pressure sensor adapted to measure changes in fluid pressure within the band, the fluid pressure changes related to patient ingestion of food which passes through the lumen of the stomach of the patient; c) memory adapted to store information related to ingestion of food by the patient; d) a gain control which modifies the relationship between an input signal from the pressure sensor and an output signal, wherein the input signal is related to food passing through the stomach and the output signal is related to adjusting the volume of fluid of the band; and e) a subcutaneous access port, wherein the pressure sensor is located within the port.
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2. A system to treat an obese patient comprising:
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a) an adjustable implantable band having a volume of fluid therein and adapted to encircle the stomach; b) an implantable pressure sensor system adapted to measure changes in pressure applied to the band and to generate an input signal related to said changes; c) memory adapted to store information related to the input signal from the pressure sensor; and d) a gain control which generates an output signal based on the input signal from the pressure sensor system, wherein the output signal adjusts the volume of fluid of the band. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9)
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10. A system to treat an obese patient comprising:
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a) an adjustable implantable band having a volume of fluid therein and adapted to encircle the stomach; b) an implantable sensor for generating an input signal in response to a physiological change in the patient, the implantable sensor selected from the group consisting of a strain gauge sensor, a circumferential tension sensor, a volume sensor;
a temperature sensor, a peristaltic wave sensor, and a pH sensor;c) memory adapted to store information related to the input signal from the sensor; and d) a control system which generates an output signal based on the input signal, wherein the output signal is adapted to adjust the volume of fluid within the band. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification