Shanghai, China
Shanghai, China
SEARCH FILTERS
Time filter
Source Type

A multifunctional composite drug coating sustained release system includes a transition layer and a drug-loaded degradable coating, wherein the transition layer is a ceramic transition layer having different porosities and the transition layer includes a dense lower layer and a porous upper layer. The multifunctional composite drug coating sustained release system is helpful to internal fixation and also has an antibacterial efficacy. A method for manufacturing the multifunctional composite drug coating sustained release system is also disclosed which includes: preparing a biocompatible ceramic transition layer on a metal surface; and then preparing a drug-loaded degradable coating on a surface of the biocompatible ceramic transition layer.


Patent
MicroPort (Shanghai) | Date: 2016-09-28

An implant capsule (10) and an implant delivery system are disclosed. The implant capsule (10) includes, sequentially from a proximal end to a distal end, a flexural section (102, 102a-102e), a reinforcement section (101, 101a-101e) and a radiopaque reinforcement ring (104a-104e). The reinforcement section (101, 101a-101e) has higher strength than the flexural section (102, 102a-102e). The implant delivery system includes the implant capsule (10). The implant capsule (10) can ensure the implant to be deployed in a coaxial condition and prevent over-expansion due to large expansion forces exerted by a stent of the implant.


Patent
MicroPort (Shanghai) | Date: 2016-09-07

A coated stent graft (1) includes a stent body (2) and a graft (3) fixed on the stent body (2), the stent (2) body being divided into a plurality of stent sections (7) along a center axis (X) of the stent graft (1), each stent section (7) extending around the center axis (X) by one circle, wherein each stent section (7) is formed by connecting a plurality of wave rods (8) end to end in a wavy structure. The stent body (2) consists of a small diameter section (4), a transition section (5) and a large diameter section (6) along the center axis (X), and the transition section (5) connects the small diameter section (4) with the large diameter section (6), wherein a distance between adjacent stent sections in the transition section (5) is larger than a distance between adjacent stent sections in the small diameter section (4), and is smaller than a distance between adjacent stent sections in the large diameter section (6). The stent graft (1) of the invention has improved bending properties.


A branched stent graft, a convey system comprising thereof and manufacturing method thereof, the branched stent graft includes a main body (100) and a side branch (200), at least a portion of a lowermost stent section of the side branch (200) closest to the main body (100) is not stitched to the cover of the side branch from a lower end to an upper end, the at least a portion of the lowermost stent section is located on a side of the side branch corresponding to a folding direction of the side branch. After deployed, the branched stent graft has an effective supporting force at the base portion of the side branch. In addition, during the deployment of the stent, the side branch can expand to a maximal extent even when the positioning is slightly inaccurate. Further, vascular stenosis or occlusion will not be caused even when subsequent endothelialization occurs.


Patent
MicroPort (Shanghai) | Date: 2016-04-13

An electric handle for delivering an implant is disclosed. The electric handle (1) includes an electric control unit (10), a power-driven transmission mechanism (20), a handle housing (30), an outer tube anchor (40) and an inner tube anchor (50), wherein: the electric control unit (10) is operatively coupled to the power-driven transmission mechanism (20) to actuate the power-driven transmission mechanism (20); the power-driven transmission mechanism (20) is supported within the handle housing (30) and moveable together with the outer tube anchor (40); the inner tube anchor (50) is disposed within the handle housing (30) and is configured to hold an inner tube (3) of a delivery system; and the outer tube anchor (40) is configured to hold an outer tube (2) of the delivery system and is fixed to an end of the outer tube (2). A delivery system used especially for delivery of prosthetic valves is also disclosed, including an outer tube (2), an inner tube (3), an expandable implant (4) and the electric handle (1).


Patent
MicroPort (Shanghai) | Date: 2016-10-26

A stent delivery system and a second release assembly are disclosed. The second release assembly is configured to control the deployment of a proximal end of a vascular stent and is disposed at a proximal end of the delivery system. The second release assembly includes, sequentially from a proximal end (P) to a distal end (D), a proximal fixing part (1), a restrain part (3) and a control guidewire (5). The restrain part is detachably connected to the proximal fixing part (1) at one end and is coupled to the control guidewire (5) at the other end. With the second release assembly, accurately controlled deployment of the vascular stent is achievable by deploying the proximal end of the vascular stent after the vascular stent has been accurately located.


Patent
MicroPort (Shanghai) | Date: 2016-09-07

A device and method for loading an implant into a delivery system are disclose which are capable of simplifying operations required in interventional surgery using the implant. The device includes a guide cap (1), a guider (2) and a guiding tube (3). The guide cap (1) has a conical section (101) and a straight or conical tube (103) in communication with a small open end (102) of the conical section, and the conical section has a large open end (104) that flares outward, thereby forming a flange (105) facing the tube (103). The guider (2) has tapered sections (9, 10) that are tapered along an axis of the guider and thus form large and small open ends (8, 11). The small open end (11) has a diameter greater than a diameter of the small open end (102) of the conical section of the guide cap (1). The guide cap (1) and the guider (2) are so sized that the flange (105) can cover and be locked to the guider (2), with an end portion of the straight or conical tube (103) protruding from the small open end (11) of the guider (2). The guiding tube (3) is a round tube with two open ends, in which the first open end has a diameter greater than the diameter of the small open end (102) of the conical section of the guide cap and smaller than the diameter of the small open end (11) of the guider.


Patent
MicroPort (Shanghai) | Date: 2016-09-07

A coated stent graft (1), which includes: a stent portion (16) including a bare section (2) and a main section (15); and a graft tube (11) fixed on the main section (15), wherein the main section (15) includes a plurality of stent sections (17) along its axial direction. The graft tube (11) is provided with a plurality of circumferential bosses (10) along the axial direction. The circumferential bosses (10) and the stent sections (17) are alternately arranged in the axial direction. The circumferential bosses (10) arranged on the stent graft (1) can buffer damages of the apexes of the stent sections on the graft.


A method and a device for loading a medical appliance with a medicament and/or polymer includes capturing images of a plurality of grooves or holes of the medical appliance using an image capturing device; performing digital image processing on the image of each of the grooves or holes to obtain a pattern of each of the grooves or holes; calculating a central position of the pattern of each of the grooves or holes, and determining a loading position of each of the grooves or holes based on the central position; and adjusting a relative position between a loading device and the medical appliance to align an outlet of the loading device with the loading position of the medical appliance, and loading each of the grooves or holes with the medicament and/or polymer. The method and device can load the medical appliance with the medicament and/or polymer fast and efficiently.


Patent
MicroPort (Shanghai) | Date: 2016-02-03

A thrombus removal means (10) and a thrombus removal device (1) particularly suited to the removal of a thrombus from an intracranial vessel. The thrombus removal means (10) is a mesh structure defining a lumen and is switchable between a contracted configuration and an expanded configuration, the thrombus removal means (10) has inwardly and/or outwardly projecting features. The thrombus removal means (10) can hold a captured thrombus firmly during the retrieval, effectively trap plaques and clot fragments with an improved stiffness and with no possibility for them to dislodge therefrom, and can addresses the issue of distal re-embolization caused by the vessel wall plaques or clot fragments dislodging from the conventional thrombus removal devices by presenting an improved thrombus removal system with the additional benefit of a small profile and high flexibility.

Loading MicroPort (Shanghai) collaborators
Loading MicroPort (Shanghai) collaborators