NON-INFLATABLE GASTRIC IMPLANTS AND SYSTEMS
First Claim
1. A passive intragastric obesity treatment implant, comprising:
- an elongated member having a relaxed configuration that forms a non-uniform diameter helix, with a middle coil of maximum diameter and end coils that are smaller than the middle coil, the relaxed configuration having a length and maximum diameter that generally fits within the stomach of an adult patient so as to span between the antrum and cardia walls and apply pressure to surrounding walls upon contraction thereof, the elongated member being formed of a material which permits it to be stretched into a substantially linear delivery configuration and that will resist degradation over a period of at least six months within the stomach.
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0 Petitions
Accused Products
Abstract
A variety of passive intragastric implant devices for obesity treatment are disclosed. Such passive devices do not autonomously change shape, but instead react within the stomach to induce satiety. The devices may take up volume within the stomach, thus reducing the intake capacity. Additionally, the devices may contact areas within the stomach, such as the cardia surrounding the esophageal sphincter, or the greater and lesser curvatures in the middle of the stomach, to stimulate satiety-inducing nerves. Some devices may combine two or more of these satiety-inducing features. Methods of implant are disclosed including compressing the devices within a delivery tube and transorally advancing the devices through the esophagus to be deployed within the stomach. Removal of the devices occurs in the reverse.
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Citations
29 Claims
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1. A passive intragastric obesity treatment implant, comprising:
an elongated member having a relaxed configuration that forms a non-uniform diameter helix, with a middle coil of maximum diameter and end coils that are smaller than the middle coil, the relaxed configuration having a length and maximum diameter that generally fits within the stomach of an adult patient so as to span between the antrum and cardia walls and apply pressure to surrounding walls upon contraction thereof, the elongated member being formed of a material which permits it to be stretched into a substantially linear delivery configuration and that will resist degradation over a period of at least six months within the stomach. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A passive intragastric obesity treatment implant, comprising:
an elongated member having a relaxed configuration that forms a non-uniform diameter helix, with end coils and a middle region that is substantially without coils, the relaxed configuration having a length that generally fits within the stomach of an adult patient so as to span between the antrum and cardia walls and apply pressure surrounding walls upon contraction thereof, the elongated member being formed of a material which permits it to be stretched into a substantially linear delivery configuration and that will resist degradation over a period of at least six months within the stomach. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A passive intragastric obesity treatment implant, comprising:
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a series of non-inflatable members each having a through bore, the members each having a male and a female mating connector which permits each member to connect with another member, each of the members being sized such that it can be easily implanted and removed through the esophagus, the members together taking up volume within the stomach of at least 400 ml and being made of a material that will resist degradation over a period of at least six months within the stomach; and a tether sized to pass through the through bores of the non-inflatable members, a distal end of the tether attaching to a distal one of the non-inflatable members such that the members can be pulled together by pulling the tether taut to cause the male and female mating connectors to couple, thus forming a relatively solid structure. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. A passive intragastric obesity treatment implant, comprising:
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an expandable net-like body formed of a plurality of struts, the body having a relaxed configuration with a size sufficient to contact the interior stomach walls upon contraction thereof, the body including a generally tubular outer portion connected to two invertible end portions terminating in cups, one of the cups including structure for mating with a delivery tube, and the other cup being solid, the implant being capable of being stretched open into a substantially linear delivery configuration and being formed of a material that will resist degradation over a period of at least six months within the stomach. - View Dependent Claims (23, 24, 25)
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26. A passive intragastric obesity treatment implant, comprising:
an elongated solid member having a relaxed configuration that forms a coil, opposite free ends of the coil being adapted to connect together to form a continuous loop, the coil assuming a three-dimensional shape upon implant in the stomach having a size that generally fits within the stomach of an adult patient so as to contact the interior stomach walls upon contraction thereof, the member being formed of a material which permits it to be stretched into a substantially linear delivery configuration and that will resist degradation over a period of at least six months within the stomach. - View Dependent Claims (27, 28)
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29. A intragastric device for the treatment of obesity, the device comprising:
an elongated member having a relaxed configuration that forms a non-uniform diameter helix, with a middle coil of the helix having a maximum diameter, and at least one end coil of the helix having a diameter which is less than the diameter of the middle coil, the relaxed configuration of the elongated member having a length and a maximum diameter such that the device can be placed in and fit within the stomach of a patient so that the device once implanted in the stomach of the patient span or occupies along at least one axis the distance or span between the antrum and cardia walls of the stomach and thereat make contact with and apply a pressure to the stomach walls, the elongated member being formed of a material which permits it to be stretched into a substantially linear delivery configuration and wherein the device can substantially resist degradation over a period of at least six months while the device is implanted in the stomach.
Specification