Abstract: The present invention discloses a core assembly, a sheath assembly, a sheath, a sheath processing method and an interventional instrument delivery system and method. A core assembly for delivering an interventional instrument according to the present invention comprises a core tube, a locking member fixed at a distal end of the core tube for connecting the interventional instrument, and a bendable adjustable tube mounted around an outer periphery of the core tube, wherein the distal ends of the bendable adjustable tube and the core tube are fixedly connected to each other, and the proximal ends can slide relative to each other.

Abstract: An easy-to-control interventional instrument delivery device, comprising a core tube (7), a guiding head (2) and a fixing head (3) being fixed onto the core tube (7); the guiding head (2) is fixed at a distal end of the core tube (7), and the fixing head (3) extends from a proximal end side of the core tube (7), an interventional instrument mounting position being located between the guiding head (2) and the fixing head (3); the outer periphery of the interventional instrument mounting position is provided with an axially slidable outer sheathing tube (5), further being provided with a floating limiting strip (1); a proximal end of the floating limiting strip (1) is a starting end (13) that is connected near the fixed head (3), and a distal end is a terminal end (11, 101) that floats between the interventional instrument mounting position and the outer sheathing tube (5).

Abstract: Disclosed are an improved leaflet of a cardiac valve, and a cardiac valve preform, a cardiac valve, and a processing method therefor. The improved leaflet of a cardiac valve comprises a leaflet body (1), wherein the leaflet body (1), in a height direction, is provided with a movable edge (12) on the top side and a fixed edge (11) on the bottom side, and the movable edge (12) and the fixed edge (11) extend in the width direction of the leaflet body (1) and are connected to connecting ears (10) on respective sides. Each of the connecting ears (10) comprises a pulling portion (2), the pulling portion (2) extending in the height direction and crossing the movable edge (12), wherein the movable edge (12) extends and intersects with the inner side of the pulling portion (2), and the fixed edge (11) extends and intersects with the outer side of the pulling portion (2).

Abstract: Disclosed is an interventional instrument that is convenient to position, comprising a support (1), wherein the support (1) is of a frame structure with a hollowed-out area (11) and is provided with an axis in space, and the support (1) has a loaded state, in which the support is radially compressed, and a released state, in which the support is radially expanded; a sealing film (2), connected to the support (1), and the position of which corresponds to at least part of the hollowed-out area, wherein in the loaded state, the peripheral face of the support (1) is enclosed to form a storage space, and the sealing film (2) is located in the storage space; and a friction increasing component (3) connected to the sealing film (2).

Abstract: An easy-to-control interventional instrument delivery device, comprising a core tube (7), a guiding head (2) and a fixing head (3) being fixed onto the core tube (7); the guiding head (2) is fixed at a distal end of the core tube (7), and the fixing head (3) extends from a proximal end side of the core tube (7), an interventional instrument mounting position being located between the guiding head (2) and the fixing head (3); the outer periphery of the interventional instrument mounting position is provided with an axially skiable outer sheathing tube (5), further being provided with a floating limiting strip (1); a proximal end of the floating limiting strip (1) is a starting end (13) that is connected near the fixed head (3), and a distal end is a terminal end (11, 101) that floats between the interventional instrument mounting position and the outer sheathing tube (5).

Abstract: A delivery system facilitating retrieval of interventional device includes a sheath, an operation handle for driving the sheath to move, and a tube axially slidably engaging with the pusher section. The sheath includes a carrier section at a proximal end for surrounding the interventional device and a pusher section connected with the carrier section. Depending on different axial positions, the tube assumes an initial configuration in which a proximal end portion thereof is at a periphery of the pusher section, and an operation configuration in which the proximal end portion is held tightly around the carrier section and limits further expansion of the carrier section. The delivery system functions to hold the support frame tightly by surrounding the sheath with the axially movable tube, retrieving the support frame and preventing the support frame from falling off from a core shaft, thereby reducing risks in surgery and the mortality rate.

Abstract: An adsorption head includes a body. The body is a hollow housing, one side of the housing to which an adsorbed object is adsorbed is provided with an opening. The body comprises at least one adsorption chamber and at least one operation chamber therein, wherein the operation chamber and the adsorption chamber are spaced from each other and each have an opening orientated to the adsorbed object. The body has at least one adsorption passage and at least one operation passage thereon, wherein one end of the adsorption passage is communicated with the adsorption chamber, and one end of the operation passage is communicated with the operation chamber.

Abstract: A method of reshaping a severely stenosed aortic valve having leaflets with bicuspid malformation and severe calcification. The method includes delivering a balloon with an expandable distal end to the aortic valve, expanding the balloon so that the distal end of the balloon is expanded to push the leaflets upward from bottom of the aortic valve to reshape the leaflets, and forming a space compliant to a self-expandable interventional valve for release, thereby facilitating the following TAVR procedure, reducing the adverse consequences of the TAVR procedure, and improving the surgical stability and the surgical prognosis.

Abstract: The present invention discloses a core assembly, a sheath assembly, a sheath, a sheath processing method and an interventional instrument delivery system and method. A core assembly for delivering an interventional instrument according to the present invention comprises a core tube, a locking member fixed at a distal end of the core tube for connecting the interventional instrument, and a bendable adjustable tube mounted around an outer periphery of the core tube, wherein the distal ends of the bendable adjustable tube and the core tube are fixedly connected to each other, and the proximal ends can slide relative to each other.

Abstract: A marker for use in the lung of patients for marking the position of a lesion in the lung, wherein the marker comprises a self-expandable structure capable of self-expanding when released from a constricting device so as to implement marking function. Because the marker for use in the lung of a patient employs the self-expandable structure, when the position of a lesion is detected during a lung examination, the marker can be delivered to the position of the lesion via a catheter or a delivering device and substantively pressed and fixed by the lung when expanded at the lesion positions; as such, the lesion position can be located quickly by a surgeon during a surgery, the surgery time is shortened, the area of resection is reduced, and the post-surgery quality of life is improved for a patient.

Abstract: A left atrial appendage (LAA) occluder is provided. The LAA occluder includes a sealing disc and an anchoring device, both of which are mutually connected; a part where an LAA cooperates with the anchoring device is an anchoring net, and the anchoring net is of a backboneless structure. The whole anchoring device is of the backboneless structure. The anchoring device is formed by weaving super elastic metal wires or shape memory alloy wires, a distal end of the anchoring device is opened, and a proximal end of the anchoring device is constricted and is connected with the sealing disc to form a conical net. The distal end of the anchoring device is opened and is rolled towards the proximal end to form the anchoring net, and the anchoring net surrounds the conical net. The anchoring net is connected with the conical net through an arc transition area.

Abstract: A therapeutic device, therapeutic system and therapeutic method for myocardium repair, wherein the therapeutic device comprises a treatment needle for piercing the heart to release a therapeutant. The treatment needle includes a needle body (5a), the interior of the needle body (5) has a therapeutant conveying cavity, an end of the needle body (5a) is a needle (5b) which can pierce the myocardium and guide the needle body (5a) to pass through the myocardium, and the needle (5b) has a therapeutant output port which is connected to the therapeutant conveying cavity. The therapeutic device enters into the myocardium in a minimally invasive manner to release the therapeutant to the vicinity of the lesion to improve myocardial function or activity and prevent further deterioration of the disease.

Abstract: An easy-to-control interventional instrument delivery device, comprising a core tube (7), a guiding head (2) and a fixing head (3) being fixed onto the core tube (7); the guiding head (2) is fixed at a distal end of the core tube (7), and the fixing head (3) extends from a proximal end side of the core tube (7), an interventional instrument mounting position being located between the guiding head (2) and the fixing head (3); the outer periphery of the interventional instrument mounting position is provided with an axially slidable outer sheathing tube (5), further being provided with a floating limiting strip (1); a proximal end of the floating limiting strip (1) is a starting end (13) that is connected near the fixed head (3), and a distal end is a terminal end (11, 101) that floats between the interventional instrument mounting position and the outer sheathing tube (5).

Abstract: An improved left atrial appendage (LAA) occluder is provided. The improved LAA occluder includes a sealing disc and an anchoring device, both of which are mutually connected, At least two flow blocking membranes are arranged in the sealing disc. A part, cooperating with an LAA, of the anchoring device is an anchoring net, and the anchoring net is of a backboneless structure. The whole anchoring device is of the backboneless structure. The anchoring device is formed by weaving metal wires, a distal end of the anchoring device is opened, a proximal end of the anchoring device is constricted and is connected with the sealing disc to form a conical net, the distal end of the anchoring device is opened and is rolled towards the proximal end to form the anchoring net, and the anchoring net surrounds the conical net.

Abstract: An interatrial shunt device includes an opening main body. The opening main body includes an opening component for penetrating the atrial septum and expanding the atrial septal tissue to form an opening. An ablation mechanism that may damage the tissue activity at the opening of the atrial septum is disposed where the opening component contacts the atrial septal tissue. An interatrial shunt system includes the interatrial shunt device, a control mechanism of the interatrial shunt device, and an ablation power source.

Abstract: A thrombus filter has a sheath, a thrombus intercepting net having an intercepting port, and an overfill prevention umbrella being a meshed structure that always surrounds the entire thrombus intercepting net. The overfill prevention umbrella has an umbrella stand and an umbrella surface, and is self-biased such that, at body temperature, the umbrella surface is configured to always converge towards the center of the intercepting port. The thrombus filter assumes a first position when the thrombus intercepting net is released from the sheath, where the distal opening of the overfill prevention umbrella is pushed open by the intercepting port. The thrombus filter assumes a second position when the thrombus intercepting net is retrieved into the sheath, where the umbrella surface converges towards the center of the intercepting port, and the open end of the umbrella surface is constricted to prevent the thrombus from escaping.

Abstract: A delivery system facilitating retrieval of interventional device includes a sheath, an operation handle for driving the sheath to move, and a tube axially slidably engaging with the pusher section. The sheath includes a carrier section at a proximal end for surrounding the interventional device and a pusher section connected with the carrier section. Depending on different axial positions, the tube assumes an initial configuration in which a proximal end portion thereof is at a periphery of the pusher section, and an operation configuration in which the proximal end portion is held tightly around the carrier section and limits further expansion of the carrier section. The delivery system functions to hold the support frame tightly by surrounding the sheath with the axially movable tube, retrieving the support frame and preventing the support frame from falling off from a core shaft, thereby reducing risks in surgery and the mortality rate.

Abstract: A marker for use in the lung of patients for marking the position of a lesion in the lung, wherein the marker comprises a self-expandable structure capable of self-expanding when released from a constricting device so as to implement marking function. Because the marker for use in the lung of a patient employs the self-expandable structure, when the position of a lesion is detected during a lung examination, the marker can be delivered to the position of the lesion via a catheter or a delivering device and substantively pressed and fixed by the lung when expanded at the lesion positions; as such, the lesion position can be located quickly by a surgeon during a surgery, the surgery time is shortened, the area of resection is reduced, and the post-surgery quality of life is improved for a patient.

Abstract: The present invention discloses a compression device for artificial valve replacing device that comprises at least two clamp unit blocks connecting with each other in sequence and enclosing a compressing channel. The compression device further comprises a guide structure for leading all clamp unit blocks to retract towards the center of the compressing channel. In this invention, when the artificial valve replacing device is placed in the compressing channel, the inner wall of the compressing channel props against the peripheral wall of the artificial valve replacing device. When the clamp unit blocks are retracting towards the center of the compressing channel under the action of outside force, the inner wall of the compressing channel applies the force directing to the center of the compressing channel. The device has the low manufacturing cost and is convenient to clean due to the simple structure, fully satisfying the requirements for operation sanitation in use.

Abstract: A left atrial appendage (LAA) occluder is provided. The LAA occluder includes a sealing disc and an anchoring device, both of which are mutually connected; a part where an LAA cooperates with the anchoring device is an anchoring net, and the anchoring net is of a backboneless structure. The whole anchoring device is of the backboneless structure. The anchoring device is formed by weaving super elastic metal wires or shape memory alloy wires, a distal end of the anchoring device is opened, and a proximal end of the anchoring device is constricted and is connected with the sealing disc to form a conical net. The distal end of the anchoring device is opened and is rolled towards the proximal end to form the anchoring net, and the anchoring net surrounds the conical net. The anchoring net is connected with the conical net through an arc transition area.