Abstract:
A method for designing or replicating a human or animal organ in the form of a functional model includes providing previously recorded structural-geometric data of the organ or organ part to be replicated, selecting reconstruction materials for the organ or organ part, allocating the structural-geometric data to the individually selected reconstruction materials, and carrying out a layered assembly by the model by successively applying site-selective assembly methods for at least one part of the reconstruction materials on the basis of an associated data set.
Abstract:
A method for performing cardiovascular and surgical procedures includes providing a conduit in the form of a graft/canula placed using balloon dilatation catheter and providing a fixing mechanism for the graft/canula. At least one opening is formed through a wall of the heart substantially at the apex. The escape of blood is prevented through the use of the fixing mechanism. Each of these steps is performed while the heart is beating.
Abstract:
Methods and devices are provided for improving cardiac output. The methods involve establishing a fluid communication pathway between the left ventricle and another natural or prosthetic structure. In one method, a conduit is implanted between the left ventricle and the descending aorta where ventricular blood flows from the left ventricle directly into the descending aorta and bypassing the aortic valve. The devices include such conduits and valves for forming the fluid communication pathways.
Abstract:
The present invention relates to a composition comprising embryonic stem cells or haematopoietic stem cells or precursor cells being obtained by differentiation of said embryonic stem cells as well as trophoblasts, trophoblasts precursor and/or placental cell derived from said trophopblasts, all cell types being derived from the same embryonic stem cell origin. Further, the present invention relates to the induction of immune tolerance in an Individual as well as methods for cell, tissue and organ transplantation. The composition according to the present invention may be used in the treatment or therapy of transplantation or gene therapy or in the field of tissue engineering.
Abstract:
The method for preparing a tissue construct for medical purposes uses endothelial progenitor cells (EPC) which have not been passaged multiple times and have a content of EOEC (early outgrowth endothelial progenitor cells) and LOEC (late outgrowth endothelial progenitor cells). These cells and fibroblasts and/or muscle cells, viz. myoblasts, myofibroblasts, smooth muscle cells or the progenitors thereof, are, in the form of living cells, seeded onto a matrix or introduced into a matrix in order to yield the tissue construct following further treatment steps. The matrix is preferably a protein preparation, more particularly a fibrinogen preparation. Both the cells and the fibrinogen preparation can be obtained from a single blood sample from a patient. Apart from the preparation of bypass materials, prosthetic vascular graft, tissue patches, conduits and the like, the EOEC-containing EPC culture or suspension is suitable as means for cell transplantation.
Abstract:
A method for designing or replicating a human or animal organ in the form of a functional model includes providing previously recorded structural-geometric data of the organ or organ part to be replicated, selecting reconstruction materials for the organ or organ part, allocating the structural-geomtric data to the individually selected reconstruction materials, and carrying out a layered assembly by the model by successively applying site-selective assembly methods for at least one part of the reconstruction materials on the basis of an associated data set.
Abstract:
The invention relates to a bioartificial primarily vascularized tissue matrix, a bioartificial primarily vascularized tissue, a method for the production thereof and the use of the same. Said tissue matrix and bioartificial primarily vascularized tissue are obtained by preparing the necessary natural tissue, conserving at least one vessel.
Abstract:
The method for preparing a tissue construct for medical purposes uses endothelial progenitor cells (EPC) which have not been passaged multiple times and have a content of EOEC (early outgrowth endothelial progenitor cells) and LOEC (late outgrowth endothelial progenitor cells). These cells and fibroblasts and/or muscle cells, viz. myoblasts, myofibroblasts, smooth muscle cells or the progenitors thereof, are, in the form of living cells, seeded onto a matrix or introduced into a matrix in order to yield the tissue construct following further treatment steps. The matrix is preferably a protein preparation, more particularly a fibrinogen preparation. Both the cells and the fibrinogen preparation can be obtained from a single blood sample from a patient. Apart from the preparation of bypass materials, prosthetic vascular graft, tissue patches, conduits and the like, the EOEC-containing EPC culture or suspension is suitable as means for cell transplantation.
Abstract:
Methods and devices are provided for improving cardiac output. The methods involve establishing a fluid communication pathway between the left ventricle and another natural or prosthetic structure. In one method, a conduit is implanted between the left ventricle and the descending aorta where ventricular blood flows from the left ventricle directly into the descending aorta and bypassing the aortic valve. The devices include such conduits and valves for forming the fluid communication pathways.
Abstract:
A method for performing cardiovascular and surgical procedures includes providing a conduit in the form of a graft/canula placed using balloon dilatation catheter and providing a fixing mechanism for the graft/canula. At least one opening is formed through a wall of the heart substantially at the apex. The escape of blood is prevented through the use of the fixing mechanism. Each of these steps is performed while the heart is beating.