摘要:
A foot/ankle implant and associated method. The foot/ankle implant comprises a composite structure having a ceramic component with a macroprosity and a polymer component filling the macroporosity. The composite structure forms an anatomically-shaped and load-bearing graft for implantation between two bone portions of the foot or ankle to correct associated deformities. The ceramic component is gradually resorbable after implantation, and the composite structure is gradually replaceable by tissue/bone ingrowth.
摘要:
A bone graft material comprising about 50-90% quickly bioresorbable porogen particles and about 10-50% of a calcium matrix material. A bioactive substance can be included in the matrix material, the porogen particles, or both. Commercial packages containing the bone graft materials and methods for repairing bone therewith are also claimed.
摘要:
Formed compositions for application to a bone surface of a human or animal subject, comprising: a bone material; and a carrier comprising denatured demineralized bone, where the composition is formed into a shape suitable for administration to the bone. Methods are provided for making formed compositions for application to a bone surface of a human or animal subject comprise mixing a demineralized bone and water; heating the mixture to form a carrier; mixing the carrier with bone to form a moldable composition; and molding the moldable composition to produce a formed composition. Several apparatuses are provided in which to hydrate the formed bone composition. Methods of hydrating a formed bone composition are also provided.
摘要:
A system and method for the treatment of mitral valve regurgitation by reshaping the mitral valve annulus using one or more plications of annular or adjacent tissue each fixed by a retainer is described. The system includes four devices to achieve such percutaneous direct plication annuloplasty. The first is a crossing catheter having a prolapseable or curved tip. Second, a deflecting guide catheter is used to provide a means for guiding the plication device into proper position at the subvalvular region of the mitral valve annulus. Third, the plication device is then used to make plications in the subvalvular region of the mitral valve annulus. Fourth, a “C” shaped retainer with deformable ends is deployed by the plication device in order to retain the plicated tissue in the plicated form.
摘要:
A deflecting guide catheter for use in minimally invasive medical procedures such as the treatment of mitral valve regurgitation by reshaping the mitral valve annulus using one or more plications of annular or adjacent tissue each fixed by a retainer is described. The catheter includes an elongated tubular portion having various durometers along its length and at least one puller wire attached to an anchor band near the distal end. The deflecting guide catheter is used to provide a means for guiding a plication device or other medical instrument into a desired position within the vasculature or heart chambers of a patient.
摘要:
Formed compositions for application to a bone surface of a human or animal subject, comprising: a bone material; and a carrier comprising denatured demineralized bone, where the composition is formed into a shape suitable for administration to the bone. Methods are provided for making formed compositions for application to a bone surface of a human or animal subject comprise mixing a demineralized bone and water; heating the mixture to form a carrier; mixing the carrier with bone to form a moldable composition; and molding the moldable composition to produce a formed composition. Several apparatuses are provided in which to hydrate the formed bone composition. Methods of hydrating a formed bone composition are also provided.
摘要:
Compositions and methods are provided for preparing and quantifying multipotential stromal cells derived from bone marrow aspirate for use in regenerative therapy and other medical treatments. A rapid, simple assay can be performed intra-operatively to quantify multipotential stromal cells in a sample for determining a dosage of multipotential stromal cells to be administered in regenerative therapeutic compositions.
摘要:
A deflecting guide catheter for use in minimally invasive medical procedures such as the treatment of mitral valve regurgitation by reshaping the mitral valve annulus using one or more plications of annular or adjacent tissue each fixed by a retainer is described. The catheter includes an elongated tubular portion having various durometers along its length and at least one puller wire attached to an anchor band near the distal end. The deflecting guide catheter is used to provide a means for guiding a plication device or other medical instrument into a desired position within the vasculature or heart chambers of a patient.
摘要:
A system and method for the treatment of mitral valve regurgitation by reshaping the mitral valve annulus using one or more plications of annular or adjacent tissue each fixed by a retainer is described. The system includes four devices to achieve such percutaneous direct plication annuloplasty. The first is a crossing catheter having a prolapseable or curved tip. Second, a deflecting guide catheter is used to provide a means for guiding the plication device into proper position at the subvalvular region of the mitral valve annulus. Third, the plication device is then used to make plications in the subvalvular region of the mitral valve annulus. Fourth, a “C” shaped retainer with deformable ends is deployed by the plication device in order to retain the plicated tissue in the plicated form. A transseptal approach may be used to plicate and retain tissue on the atrial side of the mitral valve to achieve a reduction in mitral valve regurgitation.
摘要:
Bone graft compositions comprising demineralized bone matrix, calcium phosphate, collagen and bioinductive cellular solution. Methods to repair and heal defective and missing bone using the bone graft compositions are also described.