Abstract: Provided is a valve delivery system including a valve provided with fixing portions and a valve delivery device including a withdrawing assembly and a bolt wire assembly. The withdrawing assembly is provided with fixing claws which have different sizes along an axial direction of the valve delivery device and are provided with limiting holes through which the fixing portions can pass. The bolt wire assembly is provided with bolt wires having a same size along the axial direction. When the fixing portions pass through the limiting holes and the bolt wires pass through fixing holes of the fixing portion, the valve is in a connected state. When the bolt wires move along the axial direction, the bolt wires can be disengaged from the fixing claws in sequence from long to short, respectively, until all the fixing claws are disengaged from the valve, and the valve is in a released state.

Abstract: Provided is a valve delivery device, including a bending adjustment tube, a withdrawing assembly, a traction wire, a bending adjustment wheel and a stabilizing tube. The withdrawing assembly is connected to the bending adjustment tube. The bending adjustment wheel is provided with a traction block. One end of the traction wire is connected to the withdrawing assembly, and the other end is connected to the traction block. The stabilizing tube sleeves the bending adjustment tube and is arranged between the withdrawing assembly and the bending adjustment wheel. The bending adjustment wheel is configured for adjusting the position of the traction block, and the traction block drives the withdrawing assembly to move by means of the traction wire to adjust the bending degree of the bending adjustment tube, and the stabilizing tube is configured for limiting the bending position of the bending adjustment tube.

Abstract: A valve delivery system, comprising a valve and a delivery device. The valve is provided with a fixing part provided with a fixing hole. The delivery device comprises a bolt wire assembly comprising a bolt wire and a withdrawing assembly comprising a fixing claw, which is provided with a limiting hole and has elasticity. When the fixing part passes through the limiting hole, the bolt wire assembly passes through the fixing hole and limits separation of the fixing part from the limiting hole, so that the valve is in a connected state. When the bolt wire is separated from the fixing hole, the fixing part is separated from the limiting hole under the elastic action of the valve, so that the valve is in an unhooked state. The valve is controlled by the fixing claw and the bolt wire to realize delayed and controllable release of the valve.

Abstract: A protection and loading device for an interventional valve system is provided. The interventional valve system includes a valve and a delivery system. The valve is fixed on a distal rod body of the delivery system. The protection and loading device includes: a first protector, a second protector, and a third protector. The first protector is located at a front end of the distal rod body and encompasses a half of the valve. The third protector is configured to fix and sleeve on the distal rod body. In a protection state, the first protector cooperates with the third protector at the first position. In a state of valve loading the first protector cooperates with the third protector at the second position.

Abstract: A transcatheter heart valve delivery system, comprising a valve prosthesis (3), an outer tube (1) and an inner tube (2). The valve prosthesis (3) comprises a valve release end (31), comprising an end face not perpendicular to a valve axis; the outer tube (1) comprises an outer tube release end (11), comprising an end face fitted with the end face of the valve release end (31). An angle between the end face of the outer tube release end and a direction perpendicular to the axis of the outer tube and an angle between the end face of the valve release end and the direction perpendicular to the axis of the outer tube are both within a range of 0 to 60 degrees. The inner tube (2) is telescopically in the outer tube (1) in a penetrating manner. The valve prosthesis (3) is between the inner tube (2) and the outer tube (1).

Abstract: A protection and loading device for an interventional valve system is provided. The interventional valve system includes a valve and a delivery system. The valve is fixed on a distal rod body of the delivery system. The protection and loading device includes: a first protector, a second protector, and a third protector. The first protector is located at a front end of the distal rod body and encompasses a half of the valve. The third protector is configured to fix and sleeve on the distal rod body. In a protection state, the first protector cooperates with the third protector at the first position. In a state of valve loading the first protector cooperates with the third protector at the second position.