Abstract: A method, apparatus, device and storage medium for recommending information. The method includes determining, based on a set of feature representations of a plurality of features associated with information recommendation, a first set of weights indicating importance of the plurality of features. The method also includes determining a second set of weights based on the set of feature representations and the first set of weights. The method further includes recommending the information to a user based on the set of feature representations, the first set of weights and the second set of weights. The importance of respective features associated with the information recommendation can be accurately determined through this method, which further improves the effectiveness of information recommendation and improves the user experience.

Abstract: A battery rod for driving a vaporizer inserted therein includes: a driving chip; and a driving identification circuit connected to the driving chip. When the vaporizer is inserted in the battery rod, the driving chip determines that the vaporizer is forwardly inserted or reversely inserted through the driving identification circuit and controls the driving identification circuit to operate in a forward insertion mode or a reverse insertion mode.

Abstract: A chip for a vaporizer includes: a package having a communication interface for determining whether a battery rod into which the vaporizer is inserted communicates with the vaporizer. When the battery rod communicates with the vaporizer, the vaporizer operates in a first mode. When the battery rod does not communicate with the vaporizer, the vaporizer operates in a second mode.

Abstract: A system for repairing a valve leaflet in minimally invasive surgery includes: a delivery device comprising: an operating handle; an outer delivery tube coupled to the operating handle; a delivery needle coupled to the operating handle; and a pushing tube coupled to the operating handle. The system further comprises a repair component comprising an anchor and a connection wire. The delivery device is configured to perform, in response to a trigger operation, a linkage release operation that includes actuating the delivery needle and releasing the repair component.

Abstract: A vaporizer includes: a first input end and a second input end; a heating element arranged between the first input end and the second input end; and a level exchange module connecting the first input end and the second input end, so as to allow the vaporizer to be insertable into a battery rod rightly or reversely. One of the first input end or the second input end of the vaporizer forms a power supply voltage input end of the vaporizer, and an other end of the vaporizer forms a ground voltage input end of the vaporizer.

Abstract: Disclosed is an atrial appendage clip, including a first clip arm and a second clip arm that are symmetrically arranged; a first cavity and a second cavity are correspondingly provided in the first clip arm and the second clip arm along an axial direction thereof; a first spring and a second spring are correspondingly provided in the first cavity and the second cavity; the first spring is connected with the second clip arm via a first pull wire, and the second spring is connected with the first clip arm via a second pull wire, so as to form a closed loop structure; and as the first spring and the second spring are stretched or compressed, the first clip arm and the second clip arm are opened or closed therebetween.

Abstract: A knotter, including: a driving structure; a punching and shearing clip, a clip mouth of the punching and shearing clip having a first position in an open state, and a second position in a punching state when driven by the driving structure; and scissor having a first position in an open state when driven by the driving structure, and a second position in a shearing state when driven by the driving structure. The second position of the scissor is synchronized with the second position of the punching and shearing clip. The disclosure effectively solves the problem that the shearing knife of the knotter in the related art is unstable when cutting the suture line.

Abstract: An atrial appendage occluder capable of entering a half-released state by means of pushing a head-end fiber comprises: an occlude body (1); a head-end control fiber (2); and a tail-end control fiber (3). A head end of the occluder body (1) is connected to one end of the head-end control fiber (2) by means of a head-end threaded bushing (4). A tail end of the occluder body (1) is connected to one end of the tail-end control fiber (3) by means of a tail-end threaded bushing (5). The tail-end control fiber (3) is in the form of a hollow column. The other end of the head-end control fiber (2) sequentially passes through the tail-end threaded bushing (5) and the tail-end control fiber (3). The occluder body (1) is in a woven-net support structure, and has a shape preconfigured to match the structure of an atrial appendage after the occluder body (1) has been fully released. The occluder body (1) is in the form of a strip and disposed in an outer sheath (6) before being released.

Abstract: Disclosed is an atrial appendage clip delivery system, which includes a handle shell, a push rod, a connection pipe and a support base; a passage is provided in the handle shell along a length direction; one end of the push rod is slidably disposed in the passage; the support base is provided with a mounting window for mounting an atrial appendage clip; the atrial appendage clip includes a first clip arm and a second clip arm capable of opening in parallel or closing; the handle shell, the connection pipe and the support base are sequentially connected and communicate; the first clip arm or the second clip arm is fixedly connected with an upper side or a lower side of the mounting window; the second clip arm or the first clip arm is movably connected with the lower side or the upper side of the mounting window.

Abstract: An auricle clamp for heart surgery comprises: two clamp arms two springs located at two ends of the clamp arms. The two springs are configured to: connect the two ends of the two clamp arms to form a closed-loop structure; and provide a clamping force that enables closing of the two clamp arms; wherein: a clamp arm of the two clamp arms comprises a first rod-shaped tube segment and a second rod-shaped tube segment joined at a hinge site; in a first state, the two clamp arms are substantially parallel; and in a second state, the two clamp arms form a quadrilateral shape, wherein the first rod-shaped tube segments and the second rod-shaped tube segments of the two clamp arms form a majority of the quadrilateral shape.

Abstract: Disclosed are an auricle clamp (101) and a delivery device thereof. The auricle clamp (101) includes two parallel clamp arms (202, 302); and two springs (201, 301) located at two ends of the parallel clamp arms (202, 302) respectively and are used for connecting the two ends of the two clamp arms (202, 302) to form a closed-loop structure and providing a clamping force enabling the two clamp arms (202, 203) to be located close to each other; and at least one of the two clamp arms (202, 302) is divided into a first segment and a second segment, and the first segment and the second segment are pivotally connected or connected via a flexible material.

Abstract: A system for repairing a valve leaflet in minimally invasive surgery includes: a delivery device comprising: an operating handle; an outer delivery tube coupled to the operating handle; a delivery needle coupled to the operating handle; and a pushing tube coupled to the operating handle. The system further comprises a repair component comprising an anchor and a connection wire. The delivery device is configured to perform, in response to a trigger operation, a linkage release operation that includes actuating the delivery needle and releasing the repair component.

Abstract: Disclosed is an atrial appendage clip delivery system, which includes a handle shell, a push rod, a connection pipe and a support base; a passage is provided in the handle shell along a length direction; one end of the push rod is slidably disposed in the passage; the support base is provided with a mounting window for mounting an atrial appendage clip; the atrial appendage clip includes a first clip arm and a second clip arm capable of opening in parallel or closing; the handle shell, the connection pipe and the support base are sequentially connected and communicate; the first clip arm or the second clip arm is fixedly connected with an upper side or a lower side of the mounting window; the second clip arm or the first clip arm is movably connected with the lower side or the upper side of the mounting window.

Abstract: Disclosed is an atrial appendage clip, including a first clip arm and a second clip arm that are symmetrically arranged; a first cavity and a second cavity are correspondingly provided in the first clip arm and the second clip arm along an axial direction thereof; a first spring and a second spring are correspondingly provided in the first cavity and the second cavity; the first spring is connected with the second clip arm via a first pull wire, and the second spring is connected with the first clip arm via a second pull wire, so as to form a closed loop structure; and as the first spring and the second spring are stretched or compressed, the first clip arm and the second clip arm are opened or closed therebetween.

Abstract: An atrial appendage occluder capable of entering a half-released state by means of pushing a head-end fiber comprises: an occlude body (1); a head-end control fiber (2); and a tail-end control fiber (3). A head end of the occluder body (1) is connected to one end of the head-end control fiber (2) by means of a head-end threaded bushing (4). A tail end of the occluder body (1) is connected to one end of the tail-end control fiber (3) by means of a tail-end threaded bushing (5). The tail-end control fiber (3) is in the form of a hollow column. The other end of the head-end control fiber (2) sequentially passes through the tail-end threaded bushing (5) and the tail-end control fiber (3). The occluder body (1) is in a woven-net support structure, and has a shape preconfigured to match the structure of an atrial appendage after the occluder body (1) has been fully released. The occluder body (1) is in the form of a strip and disposed in an outer sheath (6) before being released.

Abstract: Disclosed are an auricle clamp (101) and a delivery device thereof. The auricle clamp (101) includes two parallel clamp arms (202, 302); and two springs (201, 301) located at two ends of the parallel clamp arms (202, 302) respectively and are used for connecting the two ends of the two clamp arms (202, 302) to form a closed-loop structure and providing a clamping force enabling the two clamp arms (202, 203) to be located close to each other; and at least one of the two clamp arms (202, 302) is divided into a first segment and a second segment, and the first segment and the second segment are pivotally connected or connected via a flexible material.