Jenscare Scientific Co., Ltd.

Ningbo Jenscare Biotechnology Co., Ltd.

Huawei Technologies Co., Limited

Yibin Li

Shiwen Lv

Zhi Kuan Chen

Jianan Li

Zhi Chen

Zhiyun Xu

Kan Lu

Bin Huang

Chao Xu

Liming Wu

Jianye Yao

Deyuan Zheng

Fanglin Lu

Linghe Zheng

Hongqiang Cao

The present application relates to a stepwise-clamping type valve prosthesis including a frame body and a clamping member. The frame body has a channel allowing blood to flow therethrough. The clamping member includes a first clamping member and a second clamping member. One end of the first clamping member is connected to the frame body, and the other end of the first clamping member is a free end. The second clamping member is connected to the first clamping member. The clamping member has three states in sequence from being restricted to being fully released. In the first state, the first clamping member and the second clamping member are both restricted and restricted. In the second state, the second clamping member is restricted, and the first clamping member extends in a radial direction of the frame body and is capable of reaching a position between a valve leaflet and a heart wall. In the third state, the second clamping member protrudes from the first clamping member and extends in a circumferential direction of the frame body and abuts against an outer surface of the frame body, so that an autologous valve leaflet and adjacent tissues are capable of being clamped between the second clamping member, the first clamping member, and the frame body. The contact area between the valve prosthesis and the autologous tissues can be increased, the position stability of the valve prosthesis in the heart can be improved, and the success rate of the operation can be increased.

Stepwise-clamping type valve prosthesis and delivery system thereof

A heart valve prosthesis anchored to an interventricular septum. The heart valve prosthesis includes a valve supporting frame and a fixing device. The valve supporting frame includes a valve stitching section and an artificial valve, and the artificial valve is fixedly connected to the valve stitching section; the fixing device includes a fixing and supporting section and a fixing member, one end of the fixing and supporting section is connected to a proximal end of the valve stitching section, and another end of the fixing and supporting section is connected to the interventricular septum of a patient by the fixing member, to support the heart valve prosthesis and prevent the heart valve prosthesis from axially moving.

Heart valve prosthesis anchored to interventricular septum and conveying and releasing method thereof

The present application relates to a transcatheter prosthetic valve replacement system including a delivery catheter, a frame, a prosthetic valve, and one or more clamping devices. The prosthetic valve is fixed in the frame. The clamping device is connected to a periphery of the frame. The frame and the clamping device can be preloaded in the delivery catheter. The clamping device includes a clamping member, a collar, and a control member. One end of the clamping member is a fixation end which is fixedly connected to the frame, and the other end of the clamping member is a deployable resilient segment which can be compressed and released. The collar is slidably sleeved on the clamping member. One end of the control member is connected to the collar, and the other end of the control member is manipulated outside the body. From being compressed to being fully released, the clamping member in sequence has two configurations. In the first configuration, the collar is moved along the clamping member towards a free end of the deployable resilient segment, and the deployable resilient segment is gradually closed. In the second configuration, the collar is moved along the deployable resilient segment towards the fixation end, and the deployable resilient segment recovers its predetermined shape.

Transcatheter prosthetic valve replacement system

The present application relates to a separately releasable aortic valve stent, which includes a valve sewing segment, a positioning member, and a prosthetic valve. The prosthetic valve is connected to the valve sewing segment. The valve sewing segment and the positioning member are two independent components and connected to each other via a guiding device. The positioning member is able to be released prior to the valve sewing segment. A slide connection structure is disposed on the valve sewing segment. One end of the guiding device is connected to the positioning member, and another end of the guiding device passed through the slide connection structure is connected to the positioning member. The valve sewing segment is slidable along the guiding device.

Separately releasable aortic valve stent

A heart valve prosthesis anchored to an interventricular septum. The heart valve prosthesis includes a valve supporting frame and a fixing device. The valve supporting frame includes a valve stitching section and an artificial valve. The artificial valve is fixedly connected to the valve stitching section. The fixing device includes a fixing and supporting section and a fixing member. One end of the fixing and supporting section is connected to a proximal end of the valve stitching section, and another end of the fixing and supporting section is connected to the interventricular septum of a patient by the fixing member, to support the heart valve prosthesis and prevent the heart valve prosthesis from axially moving.

Providing a data processing manner, wherein: a SSD compresses a data; the SSD storing the compressed data; the SSD sends a feedback information to a controller, wherein the feedback information indicates a remaining capacity of the SSD after the compressed data is stored.

Smart storage management based on dynamic logic capacity for the storage

A prosthesis () for preventing a valve regurgitation, comprising a fixation unit (), a connection piece () and a closure assisting piece (); the fixation unit () comprises a fixation piece () and an anchor (); the connection piece () is flexible, and a distal section thereof is connected to a proximal section of the fixation piece (), and a proximal section thereof is connected to a distal section of the closure assisting piece (); the fixation piece () is fixed on the atrial wall or a valve ring of a patient via the anchor (); the deployed width of the fixation piece () is less than two-thirds of the circumference of a valve tissue annulus; the closure assisting piece () is located between autologous valve leaflets of the patient when in a free state; the maximum width of the closure assisting piece () is less than the maximum deployed width of a single autologous valve leaflet; and the proximal end of the anchor () is provided with an anti-disengagement end (). The position of the prosthesis () can be adjusted, and the prosthesis () is accurately positioned and firmly anchored, and does not readily adhere to tissue adjacent to the valve annulus of the patient.

Prosthesis for preventing valve regurgitation

An implant with anchoring device for heart valve disease comprises a cardiac valve prosthesis (), at least two sets of anchoring needles () and at least two sets of anchoring needle releasing devices (). Proximal end of the anchoring needles () are provided with anti-disengagement ends (). The anchoring needle releasing devices () are detachably connected to the cardiac valve prosthesis (). The anchoring needle releasing devices () comprise delivery tubes () and shafts (). Distal sections of the anchoring needle releasing devices () are in preset shapes. The shafts () can be pushed to force the anchoring needles () to move toward the distal ends of the delivery tubes (), so that the cardiac valve prosthesis () is fixed between autogenous tissue () and the anti-disengagement ends () to achieve accurate positioning and firm anchoring of the cardiac valve prosthesis ().

Implant with anchoring device for heart valve disease

A method of security access control for a hard disk and a hard disk, where the hard disk includes an Internet Protocol (IP) interface and a control board, and the method includes that the IP interface receives an access data packet and sends the access data packet to the control board, where the control board parses the access data packet to obtain an authentication data packet, where the authentication data packet includes access permission information, inspects the access permission information according to a stored security policy to determine whether an access is authorized, performs a security check on the access data packet using a security algorithm when the access of the user is authorized, and allows accessing data in a corresponding sector on the hard disk according to the sector identifier when the security check is passed.

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Ningbo, China

Yibin Li