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US 7,689,284 B2Granted
Pseudounipolar lead for stimulating a digestive organ
AssigneeIntraPace, Inc.
InventorsMir A. Imran, Jacob Anthiah Bashyam
Life of this patent
Estimating the term…
Abstract
A pseudounipolar stimulator lead for anchoring to a digestive organ is provided.
Claims16
An implantable stimulator for stimulating a digestive organ comprising:
- a first implantable pseudounipolar electrode configured to be positioned in electrical contact with the digestive organ when deployed, wherein the first electrode has a first surface area in the range of about 2 mm2 to about 20 mm2;
- a second implantable electrode configured to engage tissue of the digestive organ and disposed so as to form an electrode pair with the first electrode when deployed, wherein the second electrode has a second surface area in the range of about 50 mm2 to about 200 mm2;
- and
- a retention device including said first electrode, the retention device in use, attaching to a wall of the organ so as to reduce movement of the retention device and maintain electrode contact between the deployed first electrode and the wall of the organ when the stimulator is implanted, so that the surface of the first electrode remains in electrical contact with the digestive organ during long-term implantation of the stimulator and long-term stimulation of the organ.
1 more element
A stimulator for stimulating a digestive organ comprising:
- an implantable stimulator comprising:
- an implantable power source;
- a first pseudounipolar electrode having a first surface area and configured to be positioned in electrical contact with the digestive organ when deployed;
- a second electrode having a second surface area and configured to engage tissue of the digestive organ when deployed so as to form an electrode pair with the first electrode when deployed, the first and second electrodes coupled to the power source;
- and
- a retention device including said first electrode, the retention device having opposed surfaces that, in use, attach to a wall of the organ so as to reduce movement of the retention device and maintain electrode contact between the deployed first electrode and the wall of the organ, and wherein the ratio of the first surface area to the second surface area is about 2:5 or less during long-term implantation of the stimulator and long-term stimulation of the digestive organ.
3 more elements
Dependencies are inferred from the claim text.