Multi-material constriction device for forming stoma opening
First Claim
1. An implantable constriction device for forming a restricted stoma opening in the stomach or esophagus of a patient, comprising an elongate composite structure adapted to constrict the stomach or esophagus of the patient, wherein said elongate composite structure is composed of a base material making said composite structure self-supporting and property improving means for improving at least one physical property of said composite structure other than self-supporting properties.
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Abstract
An implantable constriction device for forming a restricted stoma opening in the stomach or esophagus of a patient comprises an elongate composite structure adapted to constrict the stomach or esophagus of the patient. The elongate composite structure is composed of a base material, such as hard silicone, making the composite structure self-supporting. Property improving means is provided for improving at least one physical property of the composite structure other than self-supporting properties, such as fatigue resistance, liquid impermeability, aggressive body cells resistance, anti-friction properties and lifetime.
222 Citations
82 Claims
- 1. An implantable constriction device for forming a restricted stoma opening in the stomach or esophagus of a patient, comprising an elongate composite structure adapted to constrict the stomach or esophagus of the patient, wherein said elongate composite structure is composed of a base material making said composite structure self-supporting and property improving means for improving at least one physical property of said composite structure other than self-supporting properties.
- 53. An implantable constriction device for forming a restricted stoma opening in the stomach or esophagus of a patient, comprising an elongate composite structure adapted to constrict the stomach or esophagus of the patient, wherein the composite structure includes an elongate biocompatible self-supporting base material having surfaces exposed to aggressive body cells, when the constriction device is implanted in the patient, and a cell barrier coating coated on said surfaces to prevent body cells from breaking down the base material.
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56. An implantable constriction device for forming a restricted stoma opening in the stomach or esophagus of a patient, comprising:
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elongate means for constricting the stomach or esophagus of the patient, the constricting means including means for making the constricting means self-supporting, and means for improving at least one physical property of said constricting means other than self-supporting properties. - View Dependent Claims (57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76)
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78. An implantable constriction device for forming a restricted stoma opening in the stomach or esophagus of a patient, comprising:
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an elongate composite structure adapted to constrict the stomach or esophagus of the patient, a base material of said composite structure making said composite structure self-supporting, and a coating on said base material at least along a side of said elongate composite structure that is intended to contact the stomach or esophagus, said coating having better aggressive body fluid resistant properties than said base material.
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79. An implantable constriction device for forming a restricted stoma opening in the stomach or esophagus of a patient, comprising:
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an elongate composite structure adapted to constrict the stomach or esophagus of the patient, a base material of said composite structure making said composite structure self-supporting, and a coating on said base material at least along a side of said elongate composite structure that is intended to contact the stomach or esophagus, said coating having better anti-friction properties than said base material.
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80. An implantable constriction device for forming a restricted stoma opening in the stomach or esophagus of a patient, comprising:
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an elongate composite structure adapted to constrict the stomach or esophagus of the patient, a base material of said composite structure making said composite structure self-supporting, said base material forming a first layer, and a second layer applied on said first layer, said second layer being more fatigue resistant than said first layer.
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81. An implantable constriction device for forming a restricted stoma opening in the stomach or esophagus of a patient, comprising:
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an elongate composite structure adapted to constrict the stomach or esophagus of the patient, a liquid semi-permeable base material of said composite structure forming an inflatable tubing and making said composite structure self-supporting, and a liquid impermeable coating coated on said base material.
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82. An implantable constriction device for forming a restricted stoma opening in the stomach or esophagus of a patient, comprising:
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an elongate composite structure adapted to constrict the stomach or esophagus of the patient, and a base material of said composite structure making said composite structure self-supporting, said base material forming a multiplicity of gas-containing cavities to improve the flexibility of said composite structure.
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Specification