Shanghai Newmed Medical Co., Ltd.

Commercial Aircraft Corporation of China, Ltd.

Commercial Aircraft Corporation of China, Ltd. Shanghai Aircraft Design and Research Institute

Shanghai Microport Medical (Group) Co., Ltd.

Shanghai Phigine Medical Co. Ltd

Shanghai Microport Cardioflow Medtech Co., Ltd.

Qifeng Yu

Haishan Wang

Tao Qin

Yinyin Hu

Sen Peng

Guozheng Lin

Pengfei Zhang

Qiyi Luo

Xiang Liu

Guanghui Wu

Chengyun Yue

Xi Liu

Xiaonan Li

Zhijie Wang

Yunlei Wang

Hongjie Zhang

Jingyu Chen

Shibiao Zhang

Haojie Weng

Linan Chang

Haisha Guo

Shiwei Ma

Honggang Tang

Mingpeng Yan

Kecen Han

Yaoyu Fan

Lihong Hou

Yuchen Liang

Liangdao Zhou

Yuncong Yang

The present disclosure discloses an impeller of a cardiac assist device, and the cardiac assist device. The impeller of the cardiac assist device includes an impeller shaft and a plurality of blades; a shape of the plurality of blades is set such that: blade cascades of the plurality of blades are of arc lines that recess towards a same side, and the blade cascade is a planar unfolding shape of an intersection line where a cylindrical surface intersects with the blade. In the present disclosure, a traditional wing-shaped blade cascade is changed, the blade cascades are of arc lines that recess towards the same side, this design enables blood to pass through the impeller at a smaller inflow angle and a greater outflow angle, the smaller inflow angle may generate a greater lift, so that the impeller obtains a greater output power, and meanwhile, a rotational flow can be prevented from being generated at an inflow port, such that the blood stably flows into the impeller. The greater outflow angle can convert the rotation energy of the blood at an outflow port into an axial kinetic energy, thereby obtaining a greater axial speed, and improving the efficiency of the impeller.

Impeller of cardiac assist device, and cardiac assist device

A leaflet capture device and system, and an assembling method. The leaflet capture device comprises: a wire body configured to be spiral and comprising a distal coil, an intermediate coil, and a proximal coil which are arranged in sequence; and a proximal joint comprising a proximal joint main body portion, a proximal clamping jaw, and a proximal clamping portion. The proximal clamping jaw is arranged on one end of the proximal joint main body portion; the proximal clamping portion is arranged on the other end of the proximal joint main body portion; the proximal joint is provided with a proximal through hole passing the proximal clamping jaw through the clamping portion via the proximal joint main body portion; a proximal end portion of the proximal coil is clamped in the proximal clamping jaw after being fixed to the proximal joint main body portion; the proximal through hole is communicated with the proximal end portion of the proximal coil; the proximal clamping portion is fitted to a releasable portion of a delivery device; a pushing member of the delivery device abuts against the proximal end portion of the proximal coil via the proximal through hole. The leaflet capture device can be accurately arranged at a suitable position, so that the difficulty of delivery of a leaflet capture ring is reduced, and the operation time is shortened.

Leaflet capture device and system, and assembling method

A prosthetic mitral annuloplasty ring includes a wire, an adjustment member for changing a length of the wire and a jacketing annulus for adjusting a radial dimension of the mitral valve annuloplasty ring. The jacketing annulus is sleeved over the wire and forms, together with the adjustment member, a shape matching that of a native mitral valve annulus. After the prosthetic mitral annuloplasty ring is implanted by suturing in a conventional surgical procedure and the patient's heart starts to beat again, the adjustment member can be connected to the delivery device and the wire length therein can be adjusted by a rotating operation of the delivery device so that the mitral valve annuloplasty ring will be expanded or contracted until the prosthetic mitral annuloplasty ring perfectly fits the native mitral valve annulus in shape, effectively avoiding the problem of incomplete mitral leaflet coaptation.

Delivery device for prosthetic mitral valve annuloplasty ring and prosthetic mitral valve annuloplasty ring delivery system

An artificial cardiac valve is disclosed, which includes an outer stent; an inner stent nested within and connected to the outer stent; leaflets disposed inside the inner stent; and membranes attached to walls of the outer and inner stents. The inner stent is a cylindrical mesh tube, and the outer stent includes a first stent segment, a second stent segment and a third stent segment which are connected sequentially. The first stent segment is a mesh tube. The second stent is a mesh tube having a substantially D-shaped cross-section, and the third stent segment is a flared mesh tube. The first stent segment has a maximum diameter that is equal to a diameter of the second stent segment and to a minimum diameter of the third stent segment. In this stent design, the inner stent can withstand traction forces from the leaflets, and the outer stent is adapted to match the anatomy of the native valve. As a result, after release, the artificial cardiac valve will seldom experience displacement and be rarely associated with paravalvular leaks. Moreover, it has a prolonged service life.

Artificial cardiac valve

An integrated pylon structure for a propulsion system is suitable for one end to be connected to an aircraft wing and the other end to be connected to an aircraft engine. The pylon structure includes a pylon box section () formed from an upper and a lower bean, a frame () and a side wall panel. The pylon structure has a thrust reverser hood connection structure, provided on the side wall and connected with a nacelle thrust reverser hood having a front fixed hood () and a rear movable hood (). A guide rail allows the rear movable hood to slide and open relative to the pylon box section. The engine thrust reverser hood is directly connected to the side wall of the pylon box section and a guide rail on the side wall guides the opening of the thrust reverser hood.

Integrated pylon structure for propulsion system

A front installation node is suitable for integral forming with a front end frame of an aircraft pylon and includes a first lug and a second lug, each respectively protruding outwardly from one of the two sides of the frond end frame; a first connecting rod and a second connecting rod, one end thereof being respectively connected to the first lug and the second lug, and the other end thereof being respectively suitable for connecting to an aircraft engine. The first connecting rod can pivotally connect to the first lug at a first connection point. The second connecting rod and the second lug are respectively connected at a second connecting point and a third connecting point. Using the front installation node to transmit torque is beneficial in reducing the external width of a rear installation node, reducing engine fuel consumption.

Front installation node integrated with aircraft pylon

An invasive cardiac valve comprises a tubular stent () and a valve (). One end of the tubular stent () is of a frusto-conical structure, the other end is wide open, and the diameter of the open end is greater than the diameter of the frusto-conical end. The valve () is attached to the frusto-conical end of the tubular stent (); and a delivery and retrieval hole () of the cardiac valve is provided at the top of the open end of the tubular stent (). Because the diameter of the open end is greater than the diameter of the frusto-conical end, the cardiac valve can be effectively fixed in a position of aortic annulus to prevent the cardiac valve displacement caused by the impact of the blood flow. Because the valve () is attached to the frusto-conical end of the tubular stent (), the valve () can totally avoid the left and right coronary ostia and does not affect the haemodynamics of the coronary artery. Because a delivery and retrieval hole () of the cardiac valve is provided at the top of the open end of the tubular stent (), the cardiac valve can be retrieved and reset at any time by handle control if it is found to be placed in an improper position during the release process.

Invasive cardiac valve

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Shanghai, China

Qifeng Yu