Variable size intragastric implant devices
First Claim
1. A system for an implantable device, the device being of a size that is too large to pass through an opening of a patient'"'"'s pylorus, the device constructed for placement completely within a patient'"'"'s stomach and constructed to be introduced into the stomach transorally without surgery to treat and prevent obesity by applying an outwardly directed pressure to the patient'"'"'s stomach from within the stomach, comprising:
- a central elongated body having telescopically adjustable length and a longitudinal axis;
two collapsible atraumatic feet extending from opposite ends of the elongated body, each foot constructed to assume an elongated delivery configuration in which the foot is positioned at a first radially collapsed position where said feet are elongated along said longitudinal axis, and to move to a deployed configuration in which the foot is in a second radially expanded position where said feet form stomach-contacting surfaces that are substantially perpendicular to said longitudinal axis at opposite ends of the elongated body, the two collapsible atraumatic feet comprising an array of living hinges that may be unfolded to said elongated delivery configuration and folded outward to said deployed configuration, each foot configured to exert an outwardly directed pressure on an interior of the patient'"'"'s stomach from within the stomach when the foot is in the deployed configuration when the central elongated body and the atraumatic feet are completely contained within the interior of the stomach without the elongated body piercing any portion of the stomach, wherein the central elongated body does not pass through the atraumatic feet along the longitudinal axis; and
an actuator at least partially within the central elongated body configured to simultaneously adjust the length of the body and the distance between the atraumatic feet.
15 Assignments
0 Petitions
Accused Products
Abstract
Transoral obesity treatment devices and related methods for operation thereof are described which occupy space within a stomach and/or stimulate the stomach wall. The transoral obesity treatment devices and related methods are intended to assist a patient in maintaining a healthy body weight. Features of the devices include insertion transorally and without invasive surgery, without associated patient risks of invasive surgery, and without substantial patient discomfort. The life span of these devices may be material-dependent upon long-term survivability within an acidic stomach, but is intended to last one year or longer. The devices have the capacity to vary in size and are desirably self-actuating in that they change shape and/or volume using internal motors or actuators. The changing character of the devices helps prevent the person'"'"'s stomach from compensating for the implant, such as sometimes happens with static intragastric devices.
264 Citations
21 Claims
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1. A system for an implantable device, the device being of a size that is too large to pass through an opening of a patient'"'"'s pylorus, the device constructed for placement completely within a patient'"'"'s stomach and constructed to be introduced into the stomach transorally without surgery to treat and prevent obesity by applying an outwardly directed pressure to the patient'"'"'s stomach from within the stomach, comprising:
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a central elongated body having telescopically adjustable length and a longitudinal axis; two collapsible atraumatic feet extending from opposite ends of the elongated body, each foot constructed to assume an elongated delivery configuration in which the foot is positioned at a first radially collapsed position where said feet are elongated along said longitudinal axis, and to move to a deployed configuration in which the foot is in a second radially expanded position where said feet form stomach-contacting surfaces that are substantially perpendicular to said longitudinal axis at opposite ends of the elongated body, the two collapsible atraumatic feet comprising an array of living hinges that may be unfolded to said elongated delivery configuration and folded outward to said deployed configuration, each foot configured to exert an outwardly directed pressure on an interior of the patient'"'"'s stomach from within the stomach when the foot is in the deployed configuration when the central elongated body and the atraumatic feet are completely contained within the interior of the stomach without the elongated body piercing any portion of the stomach, wherein the central elongated body does not pass through the atraumatic feet along the longitudinal axis; and an actuator at least partially within the central elongated body configured to simultaneously adjust the length of the body and the distance between the atraumatic feet. - View Dependent Claims (2, 3, 10, 11, 12, 13, 16, 17, 18, 19, 20, 21)
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4. A system for an implantable device, the device being of a size that is too large to pass through an opening of a patient'"'"'s pylorus, the device constructed for deployment completely within a patient'"'"'s stomach and constructed to be introduced into the stomach transorally without surgery to treat and prevent obesity by applying an outwardly directed pressure to the patient'"'"'s stomach from within the stomach, comprising:
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a central elongated body having an adjustable length; two collapsible atraumatic feet on opposite ends of the elongated body, each foot constructed to exert an outwardly directed pressure on an interior of the patient'"'"'s stomach from within the stomach when the foot is in a deployed configuration when the central elongated body and the two atraumatic feet are completely contained within the interior of the stomach without the elongated body piercing any portion of the stomach; and an actuator comprising an electronic motor within the central elongated body, the electric motor actuated to simultaneously adjust the length of the body and the distance between the atraumatic feet. - View Dependent Claims (5, 6, 7)
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8. A system for an implantable device, the device being of a size that is too large to pass through an opening of a patient'"'"'s pylorus, the device constructed for placement completely within a patient'"'"'s stomach and constructed to be introduced into the stomach transorally without surgery to treat and prevent obesity by applying an outwardly directed pressure to the patient'"'"'s stomach from within the stomach, comprising:
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a central elongated body having telescopically adjustable length and a longitudinal axis; two collapsible atraumatic feet extending from opposite ends of the elongated body, each foot constructed to assume an elongated delivery configuration in which the foot is positioned at a first radially collapsed position where said feet are elongated along said longitudinal axis, and to move to a deployed configuration in which the foot is in a second radially expanded position where said feet form stomach-contacting surfaces that are substantially perpendicular to said longitudinal axis at opposite ends of the elongated body, each foot configured to exert an outwardly directed pressure on an interior of the patient'"'"'s stomach from within the stomach when the foot is in the deployed configuration when the central elongated body and the atraumatic feet are completely contained within the interior of the stomach without the elongated body piercing any portion of the stomach, wherein the central elongated body does not pass through the atraumatic feet along the longitudinal axis; and an actuator at least partially within the central elongated body configured to simultaneously adjust the length of the body and the distance between the atraumatic feet, wherein the actuator comprises an acid-activated lengthening polymer element that is acid-activated to lengthen in a highly acidic environment, and the central elongated body defines through holes for exposing the polymer element to the stomach environment. - View Dependent Claims (9)
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14. A system for an implantable device, the device being of a size that is too large to pass through an opening of a patient'"'"'s pylorus, the device constructed for placement completely within a patient'"'"'s stomach and constructed to be introduced into the stomach transorally without surgery to treat and prevent obesity by applying an outwardly directed pressure to the patient'"'"'s stomach from within the stomach, comprising:
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a central elongated body having telescopically adjustable length and a longitudinal axis; two collapsible atraumatic feet on opposite ends of the elongated body, each foot constructed to assume an elongated delivery configuration in which the foot is positioned at a first radially collapsed position where said feet are elongated along said longitudinal axis, and to move to a deployed configuration in which the foot is in a second radially expanded position where said feet form stomach-contacting surfaces that are substantially perpendicular to said longitudinal axis at opposite ends of the elongated body, each foot configured to exert an outwardly directed pressure on an interior of the patient'"'"'s stomach from within the stomach when the foot is in the deployed configuration when the central elongated body and the atraumatic feet are completely contained within the interior of the stomach without the elongated body piercing any portion of the stomach; and an actuator within the central elongated body configured to simultaneously adjust the length of the body and the distance between the atraumatic feet, wherein the actuator includes a piston that biases the atraumatic feet away from each other.
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15. A system for an implantable device, the device being of a size that is too large to pass through an opening of a patient'"'"'s pylorus, the device constructed for placement completely within a patient'"'"'s stomach and constructed to be introduced into the stomach transorally without surgery to treat and prevent obesity by applying an outwardly directed pressure to the patient'"'"'s stomach from within the stomach, comprising:
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a central elongated body having telescopically adjustable length and a longitudinal axis; two collapsible atraumatic feet extending from opposite ends of the elongated body, each foot constructed to assume an elongated delivery configuration in which the foot is positioned at a first radially collapsed position where said feet are elongated along said longitudinal axis, and to move to a deployed configuration in which the foot is in a second radially expanded position where said feet form stomach-contacting surfaces that are substantially perpendicular to said longitudinal axis at opposite ends of the elongated body, each foot configured to exert an outwardly directed pressure on an interior of the patient'"'"'s stomach from within the stomach when the foot is in the deployed configuration when the central elongated body and the atraumatic feet are completely contained within the interior of the stomach without the elongated body piercing any portion of the stomach, wherein the central elongated body does not pass through the atraumatic feet along the longitudinal axis; and an actuator at least partially within the central elongated body configured to simultaneously adjust the length of the body and the distance between the atraumatic feet, the actuator including a telescoping screw to operably shorten or lengthen the central elongated body.
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Specification