13results about How to "Easy to implant" patented technology

This application provides a stent placement device for cardiac surgery, comprising a cannula with an inlet end and an outlet end; the cannula is divided into 2-3 cannula branches at the inlet end; the cannula accommodates 2-3 stent delivery catheters; one stent delivery catheter is inserted from each cannula branch; all stent delivery catheters exit from the cannula outlet end; each stent delivery catheter has a guidewire lumen and a stent balloon pressure chamber; a guidewire is disposed in the guidewire lumen; a stent implanter is disposed at the tip of the stent delivery catheter, and an ultrasound positioning ball is sequentially disposed at the tip of the stent delivery catheter. This application utilizes a structure consisting of a flexible cannula and multiple stent delivery catheters to conveniently and simultaneously provide precise stent implantation for multiple blood vessels; by incorporating an ultrasound positioning ball with a corner reflector to enhance ultrasound reflection, the implantation and detailed operation of the device can be more easily completed under ultrasound monitoring.

The invention provides an aerogel coating for an implant as well as a preparation method and application of the aerogel coating. According to the coating, polyvinyl alcohol with the alcoholysis degree being 98% or above serves as a matrix, a bio-based toughening agent and functional nano materials such as titanium dioxide or carbon nano tubes are compounded, surface hydrophobic modification and chemical crosslinking treatment are conducted through fluorination / silanization, and the coating is prepared through a double drying technology combining freeze drying and supercritical carbon dioxide drying. The porosity of the high-performance coating is higher than 90%, and the high-performance coating is of a bionic three-dimensional communicated nanometer pore channel structure. The coating can be firmly attached to the surface of a metal implant, keeps structural integrity and stable performance in a long-term implantation process in vivo, and has excellent biocompatibility, active antibacterial and antioxidant functions and capability of remarkably promoting tissue repair and integration; the key problems that an existing coating is prone to falling off, poor in-vivo stability and single in biological function can be effectively solved.

The application relates to the field of medical devices, in particular to an adjustable internal spinal column fixer and a fixing method thereof, which comprises a main body, a lifting groove vertically penetrating through the main body, the lifting groove being in sliding cooperation with a T-shaped distance adjusting block and a U-shaped distance adjusting block, a rack one and a rack two being arranged in the T-shaped distance adjusting block and the U-shaped distance adjusting block respectively, and a distance adjusting rotating shaft being rotatably arranged in the lifting groove. In the application, a matched instrument is inserted into a hexagonal groove in the distance adjusting rotating shaft and is matched with the hexagonal groove, then the matched instrument is rotated, the distance adjusting rotating shaft is meshed with the rack one and the rack two on the T-shaped distance adjusting block and the U-shaped distance adjusting block, the rotation of the distance adjusting rotating shaft can drive the T-shaped distance adjusting block and the U-shaped distance adjusting block to move relatively, the T-shaped distance adjusting block and the U-shaped distance adjusting block can support the vertebral body of the affected part, the support mode of injecting bone cement into the vertebral body is replaced, and complications caused by bone cement leakage can be effectively avoided.

The present invention presents mesenchymal stem cells, a preparation method therefor, and a cell therapeutic agent using same, the cells having hemocompatibility since thrombosis thereof is suppressed after the expression or activation level of blood coagulation initiating factor CD142 is reduced or inhibited. When intravascularly administered, the mesenchymal stem cells have improved hemocompatibility since thrombosis thereof, which can be caused by the administered mesenchymal stem cells, is suppressed.

The utility model provides a folding top pressure balloon with an ellipsoidal balloon body, which comprises a balloon body and a drainage component, the balloon body is hollow to form a balloon cavity for accommodating a filling medium, the drainage component is connected with the balloon body and is communicated with the balloon cavity, the balloon body is ellipsoidal, and the drainage component is connected with the balloon body and is communicated with the balloon cavity. And the drainage component is connected with the balloon body and is specifically connected with the end part of the long shaft of the balloon body. When the folding jacking balloon is used, the ellipsoidal balloon body is folded along the long axis of the balloon body, the strip-shaped balloon body obtained through folding is thin, the folded balloon body is easily implanted into an eye, then a filling medium is injected into the balloon cavity through the drainage component, and the balloon body can expand to jack the retina of an eyeball for treatment.

This application relates to a ventricular assist device (VAD), which includes a pump body and a motor. The pump body includes a pump housing and an outlet tube, with the outlet tube disposed on the outer peripheral surface of the pump housing and extending outward from the outer peripheral surface. The motor and pump body are arranged along the axial direction of the VAD. The motor includes a housing and a cable outlet assembly. The housing is connected to the pump housing, and the cable outlet assembly is disposed on the housing. The cable outlet assembly extends from the housing along the outer peripheral surface of the housing in a bent direction away from the outlet tube. This allows the cable outlet assembly to protrude radially with a smaller height relative to the outer peripheral surface of the housing, thereby reducing the outer diameter and volume of the VAD. This improves the ease of implantation and wearing comfort of the VAD, and also prevents the swaying of the cable within the cable outlet assembly from interfering with the artificial blood vessel connected to the outlet tube, thus achieving stable blood pumping by the VAD.

The utility model relates to the technical field of bezoar forming induction, and discloses a bezoar forming induction device which comprises a first body and a second body, the outer side of the surface of the bottom end of the first body is fixedly sleeved with a first connecting mechanism, and the top of the second body is provided with a second connecting mechanism. Movable limiting mechanisms are movably clamped to the outer sides of the surfaces of the second connecting mechanism and the first connecting mechanism, each of the first connecting mechanism and the second connecting mechanism comprises an annular frame, and a fixing groove is formed in the side, close to the first body or the second body, of each annular frame; through mutual cooperation of the first connecting mechanism, the second connecting mechanism and the movable limiting mechanism, the first body and the second body can be stably connected, and otherwise, the first body and the second body can be quickly separated; the adsorption balls can be conveniently implanted into the inner sides of the first body and the second body, and the operation is convenient.

The utility model discloses a resistance wire implanter which comprises a feeding vibration disc, a supporting clamping jaw, a clamping clamping jaw, a lifting clamping jaw, a guide plate and a positioning jig, a resistance wire is placed in the feeding vibration disc, the feeding vibration disc is used for feeding the resistance wire in a vibration mode, the supporting clamping jaw supports the resistance wire fed by the feeding vibration disc, the clamping clamping jaw is used for clamping the resistance wire, and the positioning jig is used for positioning the resistance wire. The guide plate is used for guiding the resistance wire to enter a product main body, the clamping clamp is used for clamping the supported resistance wire, the lifting clamping jaw is used for lifting the clamped resistance wire, the guide plate is used for guiding the resistance wire to enter the product main body, and the product main body is arranged on the side wall of the positioning jig. The whole resistance wire implanting operation is highly automatic, the implanting efficiency is high, the air cylinder is used for controlling the clamp to clamp the resistance wire, the force is stable, and the resistance wire is not prone to deformation.

The present application provides a kind of foldable artificial iris, including flexible iris body, the iris body is foldable first annular structure, the outside of the first annular structure is symmetrically provided with at least two elastic fixing ring, the elastic fixing ring is configured with anchor, the anchor includes the base that is clamped in scleral wall, the base is connected with anchor stem, the other end of the anchor stem is provided with expansion head, the expansion head is inwards after being penetrated through scleral wall and is connected with elastic fixing ring;The inside of the first annular structure is embedded with iris skeleton.This artificial iris is implanted by folding, and is unfolded after implantation, so that the operation is simple and easy to operate, implantation and removal are convenient, utilize the anchor of matched set and be fixed on the scleral wall, so as to avoid the operation of suture fixation, the damage to surrounding tissue is small, is used for the iris damage repair and pupil reconstruction caused by various reasons.

The present invention provides a chimeric cytokine receptor (CCR) comprising: (i) an exodomain which binds to a ligand selected from a tumour secreted factor, a chemokine and a cell-surface antigen; and (ii) a cytokine receptor endodomain.

The utility model discloses a nut in-mold injection molding fixing structure which comprises a mold and a sliding block insert pin, the mold is provided with a side sliding block, the sliding block insert pin is arranged in the side sliding block and used for bearing a nut and guiding the nut to be implanted into a product injection molding position, and the nut in-mold injection molding fixing structure further comprises a small elastic pin, a machining installation hole is formed in the sliding block insert pin, the small elastic pin is installed in the machining installation hole, and the end, close to the head, of the small elastic pin is concavely arranged in the axis direction to form a receding structure, so that the small elastic pin has the elastic deformation capacity and is used for tightly supporting an inner hole of a nut to prevent the nut from falling off. The injection mold solves the problems of easy falling and mold pressing of the nut in the traditional process, is suitable for embedding the sliding block on the side surface of the product into the nut, and has the advantages of reliable positioning, convenience in installation, improvement of production efficiency and the like.

The present application relates to a kind of dental implants for repairing alveolar bone defect, the dental implant includes abutment, implant and side wing, three are integrally connected;The lower part of abutment is connected with the upper part of implant and is provided with side wing, the side wing is the integrated composite structure formed by reinforcing layer and porous layer.Two side wings of the dental implant are astride on alveolar bone surface, two side wings effectively disperse stress, and two side wings produce good clamping effect to alveolar bone, avoid making dental implant sink, rotate and loosen in bone alveolar bone, provide better initial stability.And the porous layer of side wing plays the role of bone graft, the shape and size of porous layer can be designed according to the shape and size of alveolar bone bone defect part.The implant of the dental implant and the porous layer of side wing have multi-scale aperture porous structure, promote bone tissue to grow into porous structure, so that implant and alveolar bone form bone integration, realize long-term biological fixation.