Abstract: A prosthesis (100) for preventing a valve regurgitation, comprising a fixation unit (110), a connection piece (120) and a closure assisting piece (130); the fixation unit (110) comprises a fixation piece (111) and an anchor (112); the connection piece (120) is flexible, and a distal section thereof is connected to a proximal section of the fixation piece (111), and a proximal section thereof is connected to a distal section of the closure assisting piece (130); the fixation piece (111) is fixed on the atrial wall or a valve ring of a patient via the anchor (112); the deployed width of the fixation piece (111) is less than two-thirds of the circumference of a valve tissue annulus; the closure assisting piece (130) is located between autologous valve leaflets of the patient when in a free state; the maximum width of the closure assisting piece (130) is less than the maximum deployed width of a single autologous valve leaflet; and the proximal end of the anchor (112) is provided with an anti-disengagement end (1

Abstract: An implant with anchoring device for heart valve disease comprises a cardiac valve prosthesis (1), at least two sets of anchoring needles (2) and at least two sets of anchoring needle releasing devices (3). Proximal end of the anchoring needles (2) are provided with anti-disengagement ends (23). The anchoring needle releasing devices (3) are detachably connected to the cardiac valve prosthesis (1). The anchoring needle releasing devices (3) comprise delivery tubes (31) and shafts (32). Distal sections of the anchoring needle releasing devices (3) are in preset shapes. The shafts (32) can be pushed to force the anchoring needles (2) to move toward the distal ends of the delivery tubes (31), so that the cardiac valve prosthesis (1) is fixed between autogenous tissue (6) and the anti-disengagement ends (23) to achieve accurate positioning and firm anchoring of the cardiac valve prosthesis (1).

Abstract: 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.

Abstract: 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.

Abstract: An implant with anchoring device for heart valve disease comprises a cardiac valve prosthesis (1), at least two sets of anchoring needles (2) and at least two sets of anchoring needle releasing devices (3). Proximal end of the anchoring needles (2) are provided with anti-disengagement ends (23). The anchoring needle releasing devices (3) are detachably connected to the cardiac valve prosthesis (1). The anchoring needle releasing devices (3) comprise delivery tubes (31) and shafts (32). Distal sections of the anchoring needle releasing devices (3) are in preset shapes. The shafts (32) can be pushed to force the anchoring needles (2) to move toward the distal ends of the delivery tubes (31), so that the cardiac valve prosthesis (1) is fixed between autogenous tissue (6) and the anti-disengagement ends (23) to achieve accurate positioning and firm anchoring of the cardiac valve prosthesis (1).

Abstract: A prosthesis (100) for preventing a valve regurgitation, comprising a fixation unit (110), a connection piece (120) and a closure assisting piece (130); the fixation unit (110) comprises a fixation piece (111) and an anchor (112); the connection piece (120) is flexible, and a distal section thereof is connected to a proximal section of the fixation piece (111), and a proximal section thereof is connected to a distal section of the closure assisting piece (130); the fixation piece (111) is fixed on the atrial wall or a valve ring of a patient via the anchor (112); the deployed width of the fixation piece (111) is less than two-thirds of the circumference of a valve tissue annulus; the closure assisting piece (130) is located between autologous valve leaflets of the patient when in a free state; the maximum width of the closure assisting piece (130) is less than the maximum deployed width of a single autologous valve leaflet; and the proximal end of the anchor (112) is provided with an anti-disengagement end (1

Abstract: 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.

Abstract: A virtual storage method and a device are disclosed. The virtual storage method includes: obtaining a volume management mode of a Logical Unit Number (LUN) from a storage array and recording the volume management mode into stitch data; and constructing a virtual LUN according to the LUN and the stitch data, and mapping the virtual LUN to a host to enable read/write access; and modifying a destination address of an Input/Output (I/O) data packet delivered by the host according to the stitch data after receiving the I/O data packet, delivering the I/O data packet to the virtual LUN, and delivering the I/O data packet which has been delivered to the virtual LUN to the storage array according to the stitch data, where an address of the storage array to which the I/O data packet is delivered is the same as the destination address of the I/O data packet before the destination address of the I/O data packet is modified.

Abstract: The present invention discloses a method for the preparation of an anti-microbial wound dressing comprises alkalizing chitosan fiber to obtain alkalized chitosan fiber which is then etherified with chloroacetic acid to produce carboxymethyl chitosan fiber. Said fiber is made into dressing by fiber opening, web formation and needling. Alternatively chitosan fiber can be made into chitosan non-woven fabric by non-woven technique first which is then carboxylmethylated. The fabric is then made into wound dressing by cutting, packaging and sterilizing. The present invention also discloses the uses of the anti-microbial wound dressing made according to said method. The dressing according to the present invention can be applied in surgical wound, burn, and other chronic wound. Said dressing, when covering wound, is able to prevent moisture losses in body fluid, provide a favorable moist environment necessary for wound healing and maintain a fluid-free, maceration-free, germ-free wound surface.