Gastric band devices and drive systems
First Claim
Patent Images
1. A gastric band device for the treatment of obesity, suitable for placement around the stomach of a patient and constriction of the stomach of the patient, comprising:
- a band configured to form a loop around a portion of the stomach of the patient; and
a plurality of lever devices, each lever device is configured to apply a degree of constriction to the stomach of the patient, each lever device having a first end and a second end, the first end of each lever device being coupled to the band, and the second end of each lever device being positioned at a distance from the band, the distance being variable and defining the degree of constriction applied by each lever device to the stomach of the patient;
wherein each lever device comprises a first lever arm and a second lever arm, and a first pivot device couples the first lever arm to the second lever arm, the first lever arm being coupled to the band and the second lever arm being coupled to the band, the first lever arm being coupled to the second lever arm to form an angle, a size of the angle being variable and defining the distance of the second end of each lever device from the band.
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Abstract
Gastric banding devices, and drive systems designed to operate gastric banding devices, are disclosed. The gastric banding devices and drive systems intend to increase performance, durability, and simplicity over known gastric banding systems. Embodiments include transmission systems configured to output a variable force. Embodiments also include banding structures biased to apply a constrictive force to a patient'"'"'s stomach. Supporting, or skeletal, structures are also disclosed. Various drive systems designed to improve power efficiency are also disclosed.
530 Citations
39 Claims
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1. A gastric band device for the treatment of obesity, suitable for placement around the stomach of a patient and constriction of the stomach of the patient, comprising:
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a band configured to form a loop around a portion of the stomach of the patient; and a plurality of lever devices, each lever device is configured to apply a degree of constriction to the stomach of the patient, each lever device having a first end and a second end, the first end of each lever device being coupled to the band, and the second end of each lever device being positioned at a distance from the band, the distance being variable and defining the degree of constriction applied by each lever device to the stomach of the patient; wherein each lever device comprises a first lever arm and a second lever arm, and a first pivot device couples the first lever arm to the second lever arm, the first lever arm being coupled to the band and the second lever arm being coupled to the band, the first lever arm being coupled to the second lever arm to form an angle, a size of the angle being variable and defining the distance of the second end of each lever device from the band. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A gastric band device for the treatment of obesity, suitable for placement around the stomach of a patient and constriction of the stomach of the patient, comprising:
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a band configured to form a loop around a portion of the stomach of the patient; and a plurality of lever devices, each lever device is configured to apply a degree of constriction to the stomach of the patient, each lever device having a first end and a second end, the first end of each lever device being coupled to the band, and the second end of each lever device being positioned at a distance from the band, the distance being variable and defining the degree of constriction applied by each lever device to the stomach of the patient; wherein each lever device comprises a first lever arm and a second lever arm, the first lever arm being coupled to the band and the second lever arm being coupled to the band, and an interior region on the band is bounded by the first lever arm and the second lever arm and the band, the interior region having a substantially triangular shape, the first lever arm being coupled to the second lever arm to form an angle, a size of the angle being variable and defining the distance of the second end of each lever device from the band. - View Dependent Claims (21, 22, 23, 24)
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25. A gastric band device for the treatment of obesity, suitable for placement around the stomach of a patient and constriction of the stomach of the patient, comprising:
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a band configured to form a loop around a portion of the stomach of the patient; and a plurality of lever devices, each lever device is configured to apply a degree of constriction to the stomach of the patient, each lever device having a first end and a second end, the first end of each lever device being coupled to the band, and the second end of each lever device being positioned at a distance from the band, the distance being variable and defining the degree of constriction applied by each lever device to the stomach of the patient; wherein each lever device comprises a first lever arm and a second lever arm, the first lever arm has a first end and a second end, the first end of the first lever arm being coupled to the band and the second end of the first lever arm comprising the second end of each lever device, and the second lever arm being coupled to the band, the first lever arm being coupled to the second lever arm to form an angle, a size of the angle being variable and defining the distance of the second end of each lever device from the band. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A gastric band device for the treatment of obesity, suitable for placement around the stomach of a patient and constriction of the stomach of the patient, comprising:
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a band configured to form a loop around a portion of the stomach of the patient; a plurality of lever devices, each lever device is configured to apply a degree of constriction to the stomach of the patient, each lever device having a first end and a second end, the first end of each lever device being coupled to the band, and the second end of each lever device being positioned at a distance from the band, the distance being variable and defining the degree of constriction applied by each lever device to the stomach of the patient; and a plurality of pads, each pad coupled to the second end of a corresponding lever device, wherein each lever device comprises a first lever arm and a second lever arm, the first lever arm being coupled to the band and the second lever arm being coupled to the band, the first lever arm being coupled to the second lever arm to form an angle, a size of the angle being variable and defining the distance of the second end of each lever device from the band. - View Dependent Claims (38, 39)
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Specification