摘要:
Described are devices, methods, and systems useful in the treatment of fistulae, and in certain embodiments those having openings extending into the alimentary canal, such as anorectal fistulae. Illustratively, an anorectal fistula can be treated by placing a volumetric construct within the primary opening of the fistula. In certain embodiments, the volumetric construct can include a rolled remodelable material processed to form a substantially unitary body. Advantageous such remodelable materials can include collagenous extracellular matrix materials, such as small intestine submucosa.
摘要:
Described are medical products, systems, and methods for treating fistulae having a primary opening, such as in the alimentary canal. Certain methods of the invention include providing an implantable material including a compliant sheet form biocompatible material, and forcing this sheet form biocompatible material into the primary opening so as to deform the sheet form biocompatible material to conform to and block the primary opening. The biocompatible material preferably comprises a remodelable material, for example, a remodelable extracellular matrix material such as submucosa.
摘要:
Described are stent graft devices and methods for their preparation and use. Expandable stent graft devices of the invention include inner and/or outer coverings uniquely applied and associated with surfaces of the stent. In certain described embodiments, bioremodelable materials such as ECM materials are vacuum pressed onto and/or around elements of a stent in the manufacture of a stent graft device.
摘要:
This invention relates in one aspect to the treatment of a vascular vessel with a biomaterial. The biomaterial can be a remodelable material that strengthens and/or supports the vessel walls. Additionally the biomaterial can include a variety of naturally occurring or added bioactive agents and/or viable cellular populations.
摘要:
Described are preferred tissue graft materials that incorporate juvenile submucosa tissue from a warm-blooded vertebrate. Preferred materials incorporate juvenile small intestinal submucosa tissue from a mammal such as a porcine mammal, and the constructs are preferably in tubular form and utilized the isolated submucosa tissue in its native, intact tubular form. More preferred devices are multi-laminate and include the juvenile submucosa tissue in addition to at least one, and preferably several other layers providing increased strength or other advantageous properties to the construct.
摘要:
Described are preferred prosthetic valve devices including an extracellular matrix (ECM) material coated with a microtubule inhibiting agent and affixed to a stent. The stent is configured such that the coated ECM material is formed into one or more leaflets. In preferred embodiments, the prosthetic valve devices are configured for use in vascular applications.
摘要:
This invention relates in one aspect to the treatment of a valve-associated region of a vascular vessel with a biomaterial. The biomaterial can be a remodelable material that strengthens and/or supports the vessel walls. Additionally the biomaterial can include a variety of naturally occurring or added bioactive agents and/or viable cellular populations.
摘要:
Tissue augmentation devices, as well as methods of manufacturing and using the same, are disclosed. In certain embodiments, a tissue augmentation device comprises an elongate tissue penetrating member and an amount of remodelable material, wherein at least a portion of the elongate member is cannulated, and at least a portion of the amount of material is received within at least a portion of the cannulated portion of the elongate member. The elongate tissue penetrating member may provide at least one deformation that is configured to constrict portions of the amount of remodelable material received within the elongate member. In alternate embodiments, a flexible covering over an implantable biomaterial provides protection and allows an easier delivery of the biomaterial to a tissue tract.
摘要:
Described are vascular valve devices for implantation in a patient. The vascular valve devices are designed to compensate for the retraction characteristics of a remodelable material used to form one or more leaflets. Alternatively, or in addition, the devices are designed to reduce retraction of the remodelable leaflet-forming material. Further described are methods for preparing and using these vascular valve devices.
摘要:
Described are medical graft products, systems, and methods useful for treating fistulae, particularly enterocutaneous fistulae. Certain products of the invention are configured to have portions residing in and around a primary fistula opening in a wall of the alimentary canal. One such product includes a biocompatible graft body which is configured to block at least the primary opening. The graft body includes a capping member connected to an elongate plug member. The capping member is configured to contact portions of the alimentary canal wall adjacent to the primary opening, and the elongate plug member is configured to extend into at least a portion of the fistula. A graft product of this sort may be particularly adapted to allow a portion of the capping member to be positioned alongside an exterior, lateral surface of the plug member, e.g., when placed in a delivery device lumen. Such a capping member may be hingedly or non-hingedly coupled to the elongate plug member.