30results about How to "Improve deliverability" patented technology

The present invention is directed to an intravascular treatment for intracranial aneurysms. The invention consists of a patch stent and, also, a patch stent delivery system allowing one to rotate the stent to align the patch with the neck of the aneurysm. A self-expanding nitinol framework holds the patch in place, a radiopaque agent allows the patch location to be visualized and a pusher tube that is mechanically locked into the unexpanded stent is used to push the stent out of the catheter with rotational and longitudinal control necessary to align the patch with the aneurysm. A self-expanding framework is used to support a patch at the neck of the aneurysm. The patch is designed to reduce the blood circulation in the aneurysm and the stagnant blood will clot or thrombus. The thrombus will stop any current blood leakage into the brain and will dramatically reduce the possibility of future leaks or potentially deadly ruptures. Over time the thrombus will be absorbed and the volume of the aneurysm will shrink reducing pressure on surrounding tissue.

A catheter tip that provides longitudinal flexibility, pushability and radial rigidity thereby improving deliverability is provided. The catheter tip includes a spring-like element to provide longitudinal flexibility and pushability to the catheter tip. The spring-like element may also provide radial support to the distal edge of the catheter tip. Alternatively, a radially rigid distal end may also be included distal of the spring-like element. The apparatus may be used with any interventional catheter system, but is particularly suitable for use with balloon-expandable stent systems and balloon-angioplasty systems, where flexibility of the catheter tip and minimal flaring of the distal edge of the catheter tip is desirable.

A medical or dental treatment device for dispensing a medium having a base part with a power supply unit and an electrical or electronic control device and at least one delivery part that can be connected detachably to the base part via a coupling device and which has a sound source, such as an ultrasound source, and a delivery device for dispensing the medium from the delivery part. In addition, at least one active part, which can be connected detachably to the base part via the coupling device, may also be provided.

The present invention relates to a stent, comprising: a plurality of radially-expandable rings arranged along a longitudinal axis, wherein each of the radially-expandable rings may include a plurality of bar arms and a plurality of crowns, the adjacent crowns being connected by the bar arms therebetween, and a plurality of connectors being disposed in between and connecting the radially-expandable rings, wherein the bar arms may include a first material, and the crowns may include a second material which may be different from the first material. Novel techniques for manufacturing a stent, such as 3D additive printing methods, could be used for realizing the disclosed stents.

An apparatus, system and method for re-canalization or opening a passage through an occlusion in a blood vessel is provided. The apparatus and method, which are appropriate for cardiovascular and peripheral vessels, use a pulling member and a spring member, for example a compression spring, to oscillate a drilling component. The drilling component at the distal end of the catheter tip has combined longitudinal stiffness for penetrating a total or partial occlusion and high axial (lateral) flexibility to improve deliverability and crossability of a catheter through a partially occluded vessel or a tortuous vessel, and may taper distally. The system of the invention includes the apparatus and a control unit to permit adjustment of the frequency or amplitude of oscillation of the drilling component. Also provided is a method for oscillating a drilling component using a pulling member and a spring member and a method of traversing an occlusion.

A stent in a radially compressed configuration includes a plurality of first outer crowns and a plurality of second outer crowns, each of the first outer crowns and the second outer crowns connected by a strut of a plurality of struts. The plurality of first outer crowns and the plurality of second outer crowns are disposed at a crown angle in the range of about 15 degrees to about 35 degrees, the crown angle being defined by a line extending through a midpoint of a crown of the plurality of first outer crowns or the plurality of second outer crowns through a center of radius of the crown with respect to a line that is parallel to a central longitudinal axis of the stent.

The invention provides a message pushing method and device. The method comprises the following steps: when determining that cached information, which corresponds to a target application, on a client side is cleared away and a notification bar message which corresponds to the target application is transmitted to the client side, re-registering a message pushing function for a preset platform on theclient side; and pushing the notification bar message to the client side on the basis of the re-registered message pushing function. The preset platform is a platform which is used for running the target application on the background of the client side, and the target application does not need to be confirmed by a user in installing and downloading processes, and runs on the background of the client side in the installing and downloading process. Even if the cached information, which corresponds to the target application, on the client side is cleared away, a server side still can push the notification bar message for the client side, the delivery ability of the notification bar message corresponding to the target application is improved, and user experience is improved.

The invention discloses a real-time stable notification sending method, which comprises the following steps that: a background server adds a marking field according to whether push information to be sent to a mobile terminal is important or not, and pushes the marking field to the mobile terminal; the mobile terminal analyzes the marking field pushed by the background server, judges whether the pushed message is important or not, and pushes the message through aurora sdk if the pushed message is important; and when the mobile terminal does not receive the push message, the background server pushes the push message to the user mobile terminal in a short message sending mode. According to the invention, the timeliness and the delivery rate of the pushed message can be greatly improved, and the current situation that the pushed message cannot be delivered in time due to various special reasons after the aurora pushing mode is integrated is solved.