摘要:
A protection and loading device for an interventional valve system (1) is provided. The interventional valve system (1) includes a valve (11) and a delivery system. The valve (11) is fixed on a distal rod body (12) of the delivery system. The protection and loading device includes: a first protector (2), a second protector (3), and a third protector (4). The first protector (2) is located at a front end of the distal rod body (12) and encompasses a half of the valve. The third protector (4) is configured to fix and sleeve on the distal rod body (12). In a protection state, the first protector (2) cooperates with the third protector (4) at the first position. In a state of valve loading (11), the first protector (2) cooperates with the third protector (4) at the second position. The present disclosure realizes that the valve (11) is protected during the valve is stored and transported. When loading is to be performed, the valve can be loaded just by changing the relative position between the first protector (2) and the third protector (4), a squeezing force of the second protector (3) against the valve (11) and cooperating with the action of the delivery system.
摘要:
The present disclosure relates to a tricuspid valve frame and a valve prosthesis thereof. The tricuspid valve frame includes an inner frame part and an outer frame part. An end of the inner frame part is formed into an inflow end. An end of the outer frame part is formed into an outflow end. Another end of the inner frame part away from the inflow end is fixedly connected to another end of the outer frame part away from the outflow end. In an expanding state, the inflow end has a smaller radial size than the outflow end. The inflow end in the expanding state forms a support edge everting towards a side away from an axis of the tricuspid valve frame. In the present disclosure, the support edge is designed, so that the valve frame can be reliably supported on a valve annulus. Meanwhile, by using a structural form that the outer frame part and the inner frame part are processed separately, the molding of connecting claws are facilitated. In addition, the radial size of the inflow end is smaller than the radial size of the outflow end, it can be ensured that a force transmitted to the valve annulus does not have adverse effects on the valve annulus, and the valve prosthesis can also be prevented from falling off at the same time.
摘要:
The present invention provides an acellular collagenous tissue and a method for processing an artificial heart valve containing the acellular collagenous tissue. The method comprises immersing the acellular collagenous tissue in a preservation liquid containing an ionic liquid until the size of the acellular collagenous tissue remains stable in a non-liquid environment. The present invention also provides a preservation method, comprising immersing the acellular collagenous tissue or the artificial heart valve containing acellular collagenous tissue in the preservation liquid containing ionic liquid until the size of the collagen tissue remains stable in the non-liquid environment, and after taking out the acellular collagenous tissue or the artificial heart valve containing the acellular collagenous tissue, removing the excessive preservation liquid adhered to a surface thereof , and packaging the acellular collagenous tissue or the artificial heart valve. The present invention also provides an acellular collagenous tissue and an artificial heart valve containing the acellular collagenous tissue processed by the method described above. The method provided by the present invention can effectively avoid a biological material damage caused by being in a non-liquid environment and is beneficial to implement a subsequent processing and sterilization for the biological material.
摘要:
The present invention provides an acellular collagenous tissue and a method for processing an artificial heart valve containing the acellular collagenous tissue. The method comprises immersing the acellular collagenous tissue in a preservation liquid containing an ionic liquid until the size of the acellular collagenous tissue remains stable in a non-liquid environment. The present invention also provides a preservation method, comprising immersing the acellular collagenous tissue or the artificial heart valve containing acellular collagenous tissue in the preservation liquid containing ionic liquid until the size of the collagen tissue remains stable in the non-liquid environment, and after taking out the acellular collagenous tissue or the artificial heart valve containing the acellular collagenous tissue, removing the excessive preservation liquid adhered to a surface thereof , and packaging the acellular collagenous tissue or the artificial heart valve. The present invention also provides an acellular collagenous tissue and an artificial heart valve containing the acellular collagenous tissue processed by the method described above. The method provided by the present invention can effectively avoid a biological material damage caused by being in a non-liquid environment and is beneficial to implement a subsequent processing and sterilization for the biological material.
摘要:
The present invention provides a method for preparing an artificial heart valve leaflet, comprising freezing an animal tissue membrane and processing the frozen animal tissue membrane so as to reach a preset thickness. The method, by processing the frozen animal tissue membrane, can conveniently obtain an artificial heart valve leaflet with a required thickness and increase the yield of the animal tissue membrane valve leaflet.
摘要:
The present invention provides a method for preparing an artificial heart valve leaflet, comprising freezing an animal tissue membrane and processing the frozen animal tissue membrane so as to reach a preset thickness. The method, by processing the frozen animal tissue membrane, can conveniently obtain an artificial heart valve leaflet with a required thickness and increase the yield of the animal tissue membrane valve leaflet.
摘要:
An artificial heart valve annuloplasty ring, including an outer layer (6) and an inner layer main body structure (8), the outer layer (6) is covered on the outside of the inner layer main body structure (8), and is used to be sutured to heart tissue. The inner layer main body structure (8) has a tubular helical structure formed by curling a sheet material strip, the tubular helical structure can adjust rigidity of the annuloplasty ring. The artificial heart valve annuloplasty ring has a simple structure, easily adjustable rigidity, and is easy to manufacture and process.