摘要:
Described are expanded collagenous materials and methods for their preparation and use. Certain expanded collagenous materials can be prepared by treating a first collagenous material with an alkaline substance under conditions effective to expand the first collagenous material, and recovering the expanded material. Expanded materials can exhibit beneficial persistence and tissue generation characteristics when implanted, and can be used in the formation of highly porous medical implant bodies which can be compressed to fractions of their original volume and will thereafter substantially recover their original volume.
摘要:
Described are expanded collagenous materials and methods for their preparation and use. Certain expanded collagenous materials can be prepared by treating a first collagenous material with an alkaline substance under conditions effective to expand the first collagenous material, and recovering the expanded material. Expanded materials can exhibit beneficial persistence and tissue generation characteristics when implanted, and can be used in the formation of highly porous medical implant bodies which can be compressed to fractions of their original volume and will thereafter substantially recover their original volume.
摘要:
Described are materials and methods for inhibiting the formation of tissue adhesions. In one aspect, a prosthetic tissue support mesh, and especially such a mesh comprised of a remodelable material that promotes tissue ingrowth, incorporates an effective amount of an anti-inflammatory compound such as a non-steroidal anti-inflammatory drug (NSAID) to inhibit the formation of tissue adhesions to the mesh and/or to surrounding tissues when implanted in a patient. Also described are materials and methods for increasing the length of persistence of implanted resorbable materials, and especially implanted bioremodelable materials, using an anti-inflammatory compound such as an NSAID.
摘要:
A cast bioremodelable graft (22) comprising a cast tubular construct (33) of a bioremodelable substance (34). The bioremodelable substance is cast on or applied to a form and then vacuum pressed to dry or harden the substance. Expandable members (18) are disposed on, in, under or about the cast tubular construct to expand the graft when released from an endoluminal delivery system. A second layer (39) can be applied over the first layer (38) and the expandable stents to contain the stents there between without the need for any separate attachment. The graft is dehydrated and preferably vacuum pressed to harden the bioremodelable substance. The form is removed to form one or more lumens (23-25) in the graft, which is then loaded on an endoluminal delivery system.
摘要:
A graft prostheses (11), materials and method for implanting, transplanting, replacing, or repairing a part of a patient. The graft prosthesis includes a purified, collagen-based matrix structure removed from a submucosa tissue source. The submucosa tissue source is purified by disinfection and removal steps to deactivate and remove contaminants, thereby making the purified structure biocompatible and suitable for grafting on and/or in a patient.
摘要:
A graft prostheses (11), materials and method for implanting, transplanting, replacing, or repairing a part of a patient. The graft prosthesis includes a purified, collagen-based matrix structure removed from a submucosa tissue source. The submucosa tissue source is purified by disinfection and removal steps to deactivate and remove contaminants, thereby making the purified structure biocompatible and suitable for grafting on and/or in a patient.
摘要:
Medical device valve repair systems that include a stabilization member are provided. The stabilization member includes an engaging channel to contact the engaging surface of a valve holding valve leaflets in a position such that a tissue repair device may form a coaptation between the valve leaflets.
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 medical devices useful for applying a bolster material to a surgical fastening device such as a stapler, and related methods of manufacture and use. The devices include an applicator element for receipt between arms of the stapler, and a bolster material, desirably a remodelable extracellular matrix material, coupled to the applicator element. In certain embodiments, the bolster material is held by the applicator element, for example having at least a portion looped around or received through or over a portion of the applicator element. Also described are unique implantable materials including coatings of dried, reversible adhesive.
摘要:
A fluidized, injectable tissue graft composition is described. The composition comprises comminuted intestinal submucosa or protease-digested intestinal submucosa. Methods for the preparation and use of injectable tissue graft compositions are described. In preferred embodiments the tissue graft material is prepared from the intestinal submucosa comprising the tunica submucosa, the muscularis mucosa and the stratum compactum of a segment of intestinal tissue of a warm-blooded vertebrate. Effective amounts of the fluidized graft compositions can be injected to promote repair tissue defects by inducing formation of endogenous tissues.