Gastric stimulation systems and methods utilizing a transgastric probe
First Claim
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1. A lead for stimulating a stomach having an internal cavity, the lead comprising:
- a lead body having a distal end;
a transgastric probe disposed near the distal end of the lead body, the probe configured to be implanted across a wall of the stomach so that the probe extends into the internal cavity; and
at least one electrode disposed along the lead body proximally separated from the transgastric probe, wherein the at least one electrode is configured to be implanted in the patient on an outer surface of the stomach so as to be in electrical contact with the wall of the stomach at a location along the lead body proximally separated from the transgastric probe such that the lead has sufficient slack between the at least one electrode and transgastric probe to accommodate changes in the stomach when implanted.
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Abstract
Gastric stimulation devices, systems and methods are provided, particularly for stimulating a gastric organ having an internal cavity. Such devices and systems are typically implanted outside of the gastric organ while the environment of the internal cavity is probed and monitored by one or more sensors. The sensor information may be used to affect the stimulation signals provided to the gastric organ by the devices and systems. Such feedback integration assists in providing treatments and stimulation programs that are tailored to the needs of the individual patient.
52 Citations
29 Claims
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1. A lead for stimulating a stomach having an internal cavity, the lead comprising:
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a lead body having a distal end; a transgastric probe disposed near the distal end of the lead body, the probe configured to be implanted across a wall of the stomach so that the probe extends into the internal cavity; and at least one electrode disposed along the lead body proximally separated from the transgastric probe, wherein the at least one electrode is configured to be implanted in the patient on an outer surface of the stomach so as to be in electrical contact with the wall of the stomach at a location along the lead body proximally separated from the transgastric probe such that the lead has sufficient slack between the at least one electrode and transgastric probe to accommodate changes in the stomach when implanted. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for stimulating a stomach having an internal cavity, the system comprising:
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a lead having a distal end and a proximal end; a transgastric probe disposed near the distal end, the probe configured to be implanted across a wall of the stomach so that the distal end extends into the internal cavity during implantation; a suture disc removably coupleable with the lead so that the suture disc is attachable to the stomach wall while the transgastric probe is implanted; and at least one electrode disposed along the proximal end of the lead, wherein the at least one electrode is proximally separated from the transgastric probe and wherein the proximal end engages an outer surface of the stomach so as to be in electrical contact with an outer wall of the stomach at a location along the lead separated from the transgastric probe such that the lead has sufficient slack between the at least one electrode and transgastric probe to accommodate changes to the stomach when the probe is implanted. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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21. A method of stimulating a stomach having an internal cavity comprising:
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advancing a lead toward an outer surface of the stomach, the lead having a transgastric probe and at least one electrode, wherein the at least one electrode is proximally separated from the transgastric probe along the lead; implanting the transgastric probe across a wall of the stomach so that a distal tip of the transgastric probe extends into the internal cavity and a proximal portion of the transgastric probe engages the outer surface of the stomach; affixing the at least one electrode to the outer surface of the stomach so as to be in electrical contact with the wall of the stomach at a location separated from the implanted transgastric probe, wherein the lead has sufficient slack between the at least one electrode and probe to accommodate changes to the stomach; and cinching the wall of the stomach against the transgastric probe. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29)
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Specification