38results about How to "Fast implant" patented technology

A prosthetic heart valve can include a valve frame having a wireform portion and a stent portion. The wireform and stent portions can be undetachably coupled together via a plurality of upright struts so as to form a one-piece prosthetic heart valve frame. Alternatively, a self-expanding wireform portion and a balloon-expandable stent portion can be coupled together via one or more leaflets and a subassembly having a flexible leaflet support stent and a sealing ring. The wireform portion can include cusps and commissures configured to support a plurality of leaflets. The prosthetic valve can be radially collapsible for minimally invasive and / or transcatheter delivery techniques. Disclosed embodiments can also provide flexion of the wireform portion (e.g., of the commissures) in response to physiologic pulsatile loading when the valve is implanted in a patient's native valve annulus. Methods of making and using prosthetic heart valves are also disclosed.

Present invention is a medical catheter apparatus used for implanting a vascular stent into a vessel of a living body comprising a catheter (2) provided with a balloon (3), on which a vascular stent (4) is mounted, and a sheath into which the catheter is relatively movably inserted. The catheter is provided at the middle portion with a guide wire leading-out opening (11) for leading out the inserted guide wire (9) toward the side direction of the catheter, the sheath is provided at a middle portion with a guide wire drawing-out opening (13) for drawing the guide wire drawn from the catheter out of the sheath, and a guide wire drawing-out guiding mechanism (14) is provided between the guide wire leading-out opening and the guide wire drawing-out opening for guiding the guide wire led out from the guide wire leading-out opening to the guide wire drawing-out opening. The guide wire drawing-out guiding mechanism has a variable length from the guide wire leading-out opening to the guide wire drawing-out opening which varies in accordance with the relative movement of the sheath with respect to the catheter.

An anchoring system for the implantation of at least one anchoring device in at least one preferably bone tissue, the system is disclosed, with some embodiments comprising:at least one anchoring device comprising a curved body extending between an anterior end intended to penetrate without any deformation in the bone tissue and a posterior end intended to remain turned outward of the bone tissue,at least one guide extending along a longitudinal axis between a posterior end and an anterior end and comprising at least one guiding surface, substantially along the longitudinal axis, able to guide at least one anchoring device.

The invention discloses a radiotherapy positioning gold label recovery device and a use method thereof. The radiotherapy positioning gold label recovery device comprises a positioning gold label and recovery claw forceps, and is characterized in that the positioning gold label comprises a gold label body and an elastic fixing structure; the elastic fixing structure comprises a fixing section, an extension section and a spiral section which are connected in sequence; the fixing section is embedded in the gold label body, so that the fixing section and the gold label body are tightly connected,and relative sliding or displacement between the fixing section and the gold label body is avoided; a small magnetic ball is arranged at the end, far away from the extension section, of the gold labelbody; the recovery claw forceps comprise an operating handle; the tail part of the operating handle is connected with an outer sheath tube of a hollow structure; and a zipper used for driving the claw forceps to be opened and closed is movably linked to the interior of the outer sheath tube. According to the invention, effective fixation in the lung trachea is achieved through the gold label structure with the spiral section, and gold label displacement caused by breathing is effectively avoided; and the gold label can be conveniently recovered through the cooperation of a claw forceps body in the recovery claw forceps and the small magnetic ball.

The invention relates to a stent fixture for implant for precision-guided insertion by which it is possible to stably, precisely, and rapidly perform puncturing for implant placement. In this technique, the implant is inserted into the gums and the bone through a stent. The stent fixture includes a fixing screw composed of a thread portion, a guide portion extending from the thread portion, a head portion provided at an upper end of the guide portion with diameter bigger than an outer diameter of the guide portion, and a fixing base composed of a support portion having predetermined supporting force with respect to the gums at the position where the fixing screw is attached to the bone and a guide coupling portion having a guide coupling hole having a shape corresponding to that of the guide portion.

The invention belongs to the technical field of particle implantation and provides a particle implantation device. The device comprises a lower abutting seat used for abutting against a patient and guiding a puncture needle. The lower abutting seat is arranged on a guide rod, and an upper push seat used for upwards moving the puncture needle is arranged on the guide rod in a sliding mode, a limiting seat used for limiting the upward-moving distance of the upper push seat is arranged on the upper push seat in a sliding mode, and the limiting seat is located above the upper push seat. A second guide rod is arranged on the limiting seat, and the second guide rod penetrates a guide hole located in the upper push seat. An elastic part is further arranged between the upper push seat and the limiting seat, and an adjusting nut used for adjusting the maximum distance between the limiting seat and the upper push seat under the effect of the elastic part is arranged on the second guide rod. According to the invention, the technical problems of inaccurate and uneven particle implantation in the prior art are solved.

The present invention relates to an inflatable intragastric balloon (1) for the treatment of obesity, intended to be implanted in the stomach of a patient, thereby reducing the volume of the stomach. Said balloon (1) comprises at least one flexible bag (2) having opposite inner side (2A) and outer side (2B), such that said inner side (2A) and outer side (2B) form at least one flexible bag ( 2), the balloon is characterized in that at least a part of said surface (2A, 2B) is covered by a coating (6, 6') made of parylene. The intragastric balloon is used to treat obesity.

The present invention provides a fully intrathoracic artificial pacemaker. The pacemaker is of sufficiently compact size to allow for implantation of both the electrode and the power source within the chest cavity. In exemplary embodiments, a screw-type electrode is used for connection to heart tissue, and a relatively short lead is used to connect the electrode to a battery unit, which can comprise electronics for control of the pacemaker. An assembly for implanting the pacemaker, as well as methods of implanting the pacemaker, are disclosed. In embodiments, the device is designed as a fetal pacemaker.

The invention discloses a Z-pin based on bionic interlocking, a composite material and a preparation method thereof. The Z-pin includes a Z-pin body, and the Z-pin body is a cylinder with a tip at the bottom; a ridge, The ridges are arranged in a matrix around the cylinder; the angle between the tangent of the upper part of the ridge and the Z-pin axis is larger than the tangent of the lower part of the ridge and the Z-pin axis. The angle between the pin axes. In the present invention, specific convex ridges arranged in a matrix are arranged on the upper part of the Z-pin main body; while the formed Z-pin is rubbed and bonded to the substrate, it can be hooked and locked with the substrate to form an interlocking structure. The lock structure provides additional locking force to resist the interlayer failure of the composite material formed by the two; in addition, the Z-pin body with a cylindrical structure with a lower part is conducive to the rapid implantation of the Z-pin of the present invention into the matrix.

The invention relates to a fast fault diagnosis control method for a position square wave signal of a switched reluctance motor. Aiming at the position square wave signal detected by a position sensor, a comprehensive mixed integral threshold value detection logic control method is used to realize the fault of the position square wave signal Diagnosis and fault classification, under the steady-state and dynamic operation of the high-speed switched reluctance motor, this method can immediately lock the fault and distinguish the fault type at the moment when the position square wave signal fault occurs; because this method can detect each position sensor The position square wave signal is processed independently, so in the whole position detection system, as long as there is a position square wave signal detected by a position sensor to be normal, the fault-tolerant operation of the motor under the position signal failure mode can be realized; the practical application of the design method of the present invention Among them, the rapidity and real-time performance of fault diagnosis and the accuracy of fault classification have important practical value for improving the fault tolerance of switched reluctance motor system.

The invention discloses a (3D printing) artificial vertebral body system, which relates to the technical field of medical appliances. It includes an adjusting screw groove in the middle of the bottom end of the bionic hemivertebra; a thread groove in the middle of the top of the bionic hemivertebra; a fixing screw connected to the inner thread of the thread groove; vertical anti-slip lines are evenly opened on the outer surface of the fixing screw along the circumferential direction There is an adapter groove in the middle of the top of the bionic half cone; the adapter groove is connected with the thread groove; there is an operation window at the upper right end of the bionic half cone; the operation window is connected with the adapter groove; A honeycomb pouring layer; a silica gel layer is poured in the pouring layer; a connecting hole is opened in the middle part of the top of the silica gel layer; the connecting hole is connected with the matching groove. The beneficial effects of the invention are: the implantation of the artificial vertebral body is more convenient, the silica gel layer protects the vertebral body, reduces abrasion, has physiological curvature, does not cause damage to the vertebral body, and is more comfortable and safe for patients to use.