25 results about "Artificial Implants" patented technology

The utility model relates to a glaucoma drainage tube with double drainage discs, which belongs to the technical field of medical artificial implants and comprises a drainage tube body, a drainage mechanism is arranged on the right side of the drainage tube body and comprises a fixing structure fixedly mounted on the outer side of the drainage tube, and the double-layer drainage discs are fixedly mounted on the right side of the fixing structure. The glaucoma drainage tube with the double drainage discs can be easily implanted into an anterior chamber corner during an operation, can be accurately butted with an aqueous fluid generation source, ensures that aqueous fluid flows in without hindrance, lays a solid foundation for subsequent drainage, can be tightly attached to a sclera by virtue of the characteristics of the fixing structure, greatly reduces the displacement risk of an implant, ensures stable operation of a whole drainage system, and has a good application prospect. The upper drainage disc and the lower drainage disc cooperatively operate, the conjunctival sac is accurately opened, a stable filtering bubble is formed, the drainage groove matched with the drainage tube body in the drainage tube forms a smooth aqueous humor channel, aqueous humor drainage is accelerated, the supporting structure efficiently promotes aqueous humor diffusion between the two layers of drainage discs, and the drainage efficiency is comprehensively optimized.

Disclosed in the present invention is an interventional system for an artificial implant. The interventional system for an artificial implant has a distal end and a proximal end which are opposite to each other, and, taken as a whole, has an axial direction when straightened and corresponding radial and circumferential directions. The interventional system comprises: a control handle having a top side and a bottom side which are opposite to each other in the radial direction, wherein the control handle has a use state in which the top side faces upwards, and the control handle is provided with a reference mark for indicating the use state; a catheter assembly having a proximal end connected to and controlled by the control handle; and an artificial implant provided with a first visualization mark and loaded to a distal end of the catheter assembly according to a preset included angle, wherein the preset included angle corresponds to a circumferential offset amplitude between the first visualization mark and the reference mark when the control handle is in the use state. The interventional system can achieve rapid registration and release of the artificial implant.

The present application relates to the technical field of artificial implant medical device surface modification and middle ear hearing reconstruction, and discloses a processing method for enhancing the fixing stability of an artificial auditory ossicle prosthesis, the prosthesis and application. The method comprises the following steps: after the surface of the auditory ossicle prosthesis in contact with the middle ear tissue is cleaned, a polydopamine layer is formed in a basic dopamine solution, then gelatin, hyaluronic acid or cellulose sulfate is connected to the surface of the polydopamine layer through a carbodiimide activation system to form a viscous functional layer, and the dry sponge-like structure is obtained through freeze-drying. The functional layer can quickly rehydrate and restore the adhesion state after contacting with human blood or tissue fluid, thereby improving the fixing stability of the artificial auditory ossicle prosthesis in the initial implantation stage and reducing the risk of displacement or dislocation.

The utility model belongs to the technical field of medical instruments, and particularly relates to an artificial implant support which is provided with a plurality of support connecting holes used for being connected with a valve leaflet mechanism. The bracket connecting hole is a rectangular hole; the artificial implant stent comprises an outflow section, the outflow section comprises a plurality of outflow section frame units and a plurality of outflow section connecting areas, the outflow section frame units are sequentially connected end to end, and the outflow section connecting areas serve as stent connecting parts and are provided with stent connecting holes. The support connecting holes are rectangular holes, compared with a plurality of round holes, sewing of a plurality of circles of sewing lines is easier, and separation of the valve leaflet mechanism and the artificial implant support caused by fracture of the sewing lines is prevented. In addition, the design of the rectangular hole has enough space, so that the connecting piece of the valve leaflet mechanism penetrates out of the outer side of the artificial implant stent from the inner side of the artificial implant stent through the stent connecting hole.

The application discloses an interventional system with interception function, which comprises an interventional delivery system and an artificial implant loaded on the interventional delivery system, the artificial implant being an aortic valve with a first mark and comprising a stent and valve leaflets; the interventional delivery system comprises a catheter assembly, a control handle for controlling the catheter assembly, and an interception device connected to the control handle, the interception device being a filter for capturing blood clots or a deflection device for guiding blood clots, wherein the delivery channels of the interception device and the artificial implant are independently configured with pipe fittings or utilize a multi-lumen tube structure; the interventional delivery system has a third mark, and when the artificial implant is loaded on the interventional delivery system, the circumferential relative position between the first mark and the third mark is adjusted based on deviation information, wherein the deviation information is obtained by comparing the position information of each sinus of a native aortic valve with reference information. The interventional system with interception function can effectively deflect and capture blood clots and the like generated in the body, thereby reducing the risk.

An embodiment of the present specification provides an artificial implant comprising: an implant body; and a coating layer formed on at least part of the surface of the implant body, wherein the coating layer comprises decellularized tissue.

Disclosed in the present application are a control mechanism, a locking mechanism, a loading method, and a pre-loading method for an artificial implant. The control mechanism includes a base, a pulling wire, and a locking member. The base is configured with a locking hole. The pulling wire has a free end that can be passed through, wound around, or detached from the artificial implant. The locking member and the base are rotatably engaged to lock the free end of the pulling wire. After the control mechanism is optimized, it can cooperate to realize the control of the expansion, release, or withdrawal process of the artificial implant in the body, which is more suitable for internal work than existing structures.

The invention discloses a control mechanism, a locking mechanism, a loading method and a preassembling method of an artificial implant. The control mechanism of the artificial implant comprises a base, a stay wire and a lock piece, wherein a lock hole is formed in the base; the stay wire is provided with a free end which can be wound or separated from the artificial implant; and the locking piece is in running fit with the base so as to lock the free end of the stay wire. After the control mechanism is optimized, the control mechanism can be matched with each other to realize the control of the in-vivo expansion, release or recovery process of the artificial implant, and is more suitable for in-vivo work compared with the existing structure.

The application relates to a compression sleeve set for guiding deformation of an artificial implant, comprising a supporting assembly including an auxiliary guide tube and an inner tube, the inner tube having a lumen for the auxiliary guide tube to pass through, one end of the auxiliary guide tube being provided with a coupling structure which can be exposed to the inner tube and establish a detachable temporary connection with the artificial implant; a guiding assembly including an outer tube and a guide cylinder which is connected to the outer tube in a docking mode, the guide cylinder having a guiding cavity which is gradually tapered towards the outer tube, the auxiliary guide tube driving the artificial implant to enter the outer tube via the guiding cavity, and the artificial implant being radially compressed under the action of the guiding assembly. The application can improve the loading efficiency of the artificial implant and reduce the operation difficulty by improving the components in the compression sleeve set and the auxiliary device and the adaptive method.

Devices, systems, and methods are disclosed for stabilizing a delivery device and / or a guide catheter device during the delivery and implantation of an artificial implant. Each of the delivery device and the guide catheter device may include a handle and a shaft (delivery shaft or guide catheter shaft) extending distally from the handle. The distal cap portion of each handle may be coupled to a stabilization clamp of a stabilization system to maintain the axial position of the handle relative to each other. The stabilization clamp is configured to allow rotation of the distal cap within it so that torque applied to the handle is transmitted to each shaft. The jaw portions of the stabilization clamp may be configured to balance or equalize the torque resistance to the rotation of the handle in a first (e.g., clockwise) direction with respect to a second opposite (e.g., counterclockwise) direction.

Provided are a prosthetic implant and a method for manufacturing same, the prosthetic implant comprising: a silicone shell; and a filler injected into the silicone shell, wherein the silicone shell comprises two or more first silicone layers which form the inner and outer surfaces of the silicone shell, and one or more second silicone layers disposed between the two or more first silicone layers, and the one or more second silicone layers comprise pores.

This application discloses a control mechanism, a locking mechanisms, an interventional delivery system, a control method, and a loading method for an artificial implant. The control mechanism includes a base, a pulling wire and a locking member, wherein the base defines a locking hole, the pulling wire includes a free end that can pass through, wind around, or be detached from the artificial implant. The locking member as a whole is located at a distal end of the base, and rotatably engages with the base to lock the free end of the pulling wire.

The present disclosure relates generally to cartilage repair and total joint arthroplasty and, more particularly, to engineered biotextiles, artificial implants comprising the engineered biotextiles, and fully biologic replacement joints comprising the same as well as related methods for preparing and implanting the engineered biotextiles and fully biologic replacement joints.

The present application relates to the technical field of medical equipment, in particular to a kind of artificial implant mechanical heart valve bionic experiment dynamic simulation device, including simulation frame, closed shell, environmental control component, pump liquid mechanism and detection mechanism, the simulation frame is fixed, closed shell is installed in the simulation frame, environmental control component is installed in the closed shell, environmental control component is used to adjust temperature humidity and other indexes in closed shell, to simulate the human environment under different conditions in sequence;The pump liquid mechanism is installed in the closed shell, and the pump liquid mechanism is used to simulate the blood flow of human body and then cooperate with detection mechanism to detect mechanical heart valve;The detection mechanism is installed in one side of the pump liquid mechanism, and the detection mechanism is used to fix mechanical valve and cooperate with pump liquid mechanism to detect artificial heart valve.

This invention provides a radiographic imaging system that takes into account the physical characteristics of the subject when executing stop control. [Solution] A radiation imaging system comprising a radiation generating device for irradiating radiation, a radiation imaging device for acquiring a radiation image based on the radiation irradiated from the radiation generating device, and an information processing device for controlling radiation imaging using the radiation generating device and the radiation imaging device, is characterized by having means for setting a stop control for radiation irradiation from the radiation generating device, and means for executing a predetermined process related to the setting of the stop control based on patient information including any of the following: information on bodily defects, information on the presence or absence of artificial implants, and information on surgical history.

The present application discloses a prosthesis with different stiffness in multiple composite regions and a manufacturing method thereof. The prosthesis comprises a composite and a base. The composite comprises a porous surface structure and an intermediate body which are connected in advance or integrally formed. The base is used to form a main body of the prosthesis, and at least part of the surface of the base is used as a connecting region. The composite comprises a first composite region corresponding to a first stiffness. The remaining composite regions of the composite except the first composite region comprise at least a second composite region corresponding to a second stiffness. The first stiffness is less than the second stiffness. The first and second composite regions are connected to the base at the connecting region respectively. The present application can tightly adhere and tightly connect the composite and the base, ensure that the artificial implanted prosthesis has excellent bone ingrowth performance, and make the strength of the base not be substantially affected.

Disclosed in this application are a control mechanism, a control handle, a delivery system and a control method for an artificial implant, and an artificial heart valve. The control mechanism includes a base, a pulling wire, and a locking member, wherein the pulling wire is configured with a free end which can pass through the artificial implant or be detached from the artificial implant, the locking member movably engaged with the base, and the locking member cooperates with the free end of the pulling wire to lock the artificial implant. After the control mechanism is optimized, the control of the release or withdrawal process of the artificial implant in the body can be achieved by means of mutual cooperation. Compared with existing structures, the control mechanism is more suitable for working inside the body.

The invention discloses a control mechanism, a locking mechanism, an intervention conveying system, a control method and a loading method of an artificial implant. The control mechanism comprises a base (10), a stay wire (11) and a lock piece (13), wherein a lock hole is formed in the base (10); the stay wire (11) is provided with a free end (111) which can penetrate through or be separated from the artificial implant (60); the locking piece (13) is integrally located at the far end of the base (10), and the locking piece (13) and the base (10) are rotationally matched to lock the free end (111) of the pull wire (11). After the control mechanism is optimized, the control mechanism can be matched with each other to realize the control of the in-vivo expansion, release or recovery process of the artificial implant (60), and is suitable for in-vivo work.

The application discloses an intervention system convenient to rotate, which comprises an intervention delivery system and an artificial implant loaded on the intervention delivery system; the artificial implant is an aortic valve with a first mark; the intervention delivery system comprises a catheter assembly for delivering the artificial implant and a control handle for controlling the catheter assembly; the catheter assembly comprises an outer sheath, an inner shaft, and a balloon body; the inner shaft is rotatably arranged in the outer sheath and axially slidably matched with the outer sheath; the aortic valve is radially compressed and arranged on the outer periphery of the balloon body; the intervention delivery system is provided with a third mark; when the artificial implant is loaded on the intervention delivery system, the rotation range between the inner shaft and the outer sheath is adjusted through the first mark and the third mark to match the deviation information. The intervention system convenient to rotate can improve positioning accuracy and is convenient to operate.

The invention discloses a control mechanism and a locking mechanism of an artificial implant. The control mechanism of the artificial implant comprises a base, a stay wire and a lock piece, wherein a lock hole is formed in the base; the stay wire is provided with a free end which can be wound or separated from the artificial implant; and the locking piece is in running fit with the base so as to lock the free end of the stay wire. After the control mechanism is optimized, the control mechanism can be matched with each other to realize the control of the in-vivo expansion, release or recovery process of the artificial implant, and is more suitable for in-vivo work compared with the existing structure.

A modular endoprosthetic system for reconstruction of long-bone defects is disclosed, including an intramedullary nail anchored within one or both natural epiphyseal bone fragments or connectable to corresponding proximal and / or distal epiphyseal reconstruction artificial implants, optionally with a plurality of segmental members each formed of two subpart moieties having semi-cylindrical interior faces engaging the nail and mutually interlockable faces fastenable together to enclose the nail, the system optionally incorporating self-locking fasteners, porous or osteogenic structures, and structural elements on the nail and the implants forming frictional or interlocking engagements, thereby enabling rapid intraoperative assembly, firm fixation, and modular reconstruction of partial or complete diaphyseal and epiphyseal portions of long bones.

The invention relates to a pressing and holding set for guiding an artificial implant to deform, comprising: a support assembly comprising an auxiliary guide tube and an inner tube and having a tube cavity through which the auxiliary guide tube passes, one end of the auxiliary guide tube being provided with a coupling structure which can be exposed to the inner tube and establish detachable temporary connection with the artificial implant; the guiding assembly comprises an outer tube and a guiding cylinder communicated with the outer tube in a butt joint mode, the guiding cylinder is provided with a guiding cavity gradually folded towards the outer tube, the auxiliary guiding tube drives the artificial implant to enter the outer tube through the guiding cavity, and the artificial implant is compressed in the radial direction under the action of the guiding assembly. According to the invention, by improving the parts in the pressing and holding set and the auxiliary device and improving the adaptive method, the loading efficiency of the artificial implant can be improved, and the operation difficulty is reduced.

Devices, systems, and methods for holding an artificial implant. The systems in certain embodiments may be used to hold an artificial implant prior to implantation in a patient's body and prior to coupling to a delivery device used to implant the artificial implant in a patient's body. Certain embodiments disclosed herein may relate to devices, systems, and methods for preparing an artificial implant prior to implantation.

The invention provides a layered Thiessen polygonal porous structure construction method, and belongs to the technical field of digital model construction. The invention provides a layered Thiessen polygonal porous structure construction method. The method comprises the following operation steps: obtaining a shape model of a porous area of an artificial implant prosthesis / implant; constructing a porous printing area model; obtaining multi-hole printing area layering; seed points are taken from the layered surface of the porous printing area; constructing a Thiessen polygon linear framework; setting a wire diameter to obtain a Thiessen polygonal printing frame; boolean intersection operation is carried out on the Thiessen polygon printing frame and the shape model; printing frame data are input into 3D printing equipment; printing a finished product. According to the layered Thiessen polygonal porous structure construction method provided by the invention, the porous printing area model is layered, so that the controllability of seed point selection is realized, the aperture range and the aperture channel of the porous structure are convenient to control, and the shape regularity of the Thiessen polygonal porous structure is improved.

For many patients, it can be difficult to properly size and shape the artificial valve. [Solution] A method and system for providing a consistent flow of fluid through the lumen of a delivery device is disclosed. In one embodiment, the delivery device may include an outer shaft configured to hold an artificial implant in a delivery configuration; an inner shaft disposed within the outer shaft, coupled to the end of the artificial implant, and configured to move axially relative to the outer shaft; and a sleeve shaft disposed within the outer shaft and configured to cover the artificial implant in the delivery configuration. In some embodiments, the inner shaft may include one or more defined openings therein, extending between the inner and outer surfaces of the inner shaft, and configured to fluidly connect the inner lumen of the inner shaft to a lumen located between the outer surface of the inner shaft and the inner surface of the sleeve shaft.