39 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.

The application discloses a control mechanism, a locking mechanism and a loading method and a preloading method of an artificial implant. The control mechanism of the artificial implant comprises a base, a pull wire and a lock piece, wherein the base is provided with a lock hole; the pull wire has a free end which can be wound around or separated from the artificial implant; and the lock piece is rotationally matched with the base to lock the free end of the pull wire. After optimization of the control mechanism, the control mechanism and the artificial implant can be matched with each other to realize the control of the expansion, release or recovery process of the artificial implant in the body, and the control mechanism is more suitable for working in the body than the existing structure.

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.

Systems and methods for providing artificial implants that promote neovascularization using an implant body enclosing biomaterial and a length of an arteriovenous (AV) bundle. The AV bundle can be configured to have closed ends that reside in or outside the internal chamber of the implant body so as to not form a blood flow path therebetween. The biomaterial can include decellularized human pancreatic extracellular material in the internal chamber. The biomaterial can be pre-formed or pre-assembled or injected into the internal chamber of the implant body or the biomaterial or inserted onsite during or prior to a surgical procedure associated with implantation of the device.

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.

Systems and methods usable in delivering a prosthetic implant to a patient's heart. A distal region of a delivery catheter can be positioned in an atrium of the heart and a distal tip can be positioned at or near a commissure of the native valve. The prosthetic implant can be located within the delivery catheter. A pusher tool can be advanced distally through the delivery catheter to push the docking device along within the delivery catheter. The docking device can be connected to the pusher tool by a line, such as a suture. A member of the pusher tool can be rotatable to change the amount of the suture extending from the pusher tool.

The invention discloses a control handle with a bending adjusting mechanism, the control handle is provided with a support body, and the bending adjusting mechanism comprises a reel rotatably mounted on the support body and used for driving a bending adjusting piece; the knob is linked with the reel; and the one-way clamping structure acts between the supporting body and the knob and has a limiting state and a releasing state which are opposite to each other, and only the reel is allowed to rotate in one direction in the limiting state. The bending adjusting mechanism can improve the safety in the bending adjusting process.

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.

The invention discloses an abrasive cutting machining device and method for a metal surface of a three-level micro-nano structure, and particularly relates to the technical field of artificial implants.The abrasive cutting machining device comprises a control assembly, a grinding machine assembly and an atomization assembly, and the grinding machine assembly and the atomization assembly are both in signal connection with the control assembly; the control assembly controls a cutter of the grinding machine assembly to conduct millimeter-level and micron-level grinding cutting on the surface of a workpiece, the control assembly controls an atomizing nozzle of the atomizing assembly to spray atomized nanoscale diamond suspension liquid to the surface of the workpiece, and the diamond suspension liquid is sprayed between the surface of the workpiece and the cutter. And the surface of the workpiece is subjected to nano-scale grinding cutting under the action of the cutter. According to the invention, three-stage size processing can be carried out on the surface of the workpiece, and the biocompatibility of the artificial implant and human tissues is improved, so that the growth and proliferation or adhesion of bone tissues are promoted, and the service life of the artificial implant is prolonged.

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 invention discloses a control mechanism, a control handle, a conveying system and a control method of an artificial implant and an artificial heart valve. The control mechanism of the artificial implant comprises a base, a pull wire and a locking piece. Wherein the stay wire is provided with a free end capable of penetrating through or being separated from the artificial implant; the locking piece is movably matched with the base, and the locking piece is matched with the free end of the stay wire to limit the artificial implant. After the control mechanism is optimized, the control mechanism can be matched with each other to control the in-vivo release or recovery process of the artificial implant, and compared with an existing structure, the control mechanism is more suitable for in-vivo work.

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.

Apparatuses, systems, and methods for holding prosthetic implants are disclosed. In some examples, a method can include coupling an implantable prosthetic valve to one or more releasable couplers of a holder, the holder including a holder body coupled to the one or more releasable couplers and an actuator coupled to the holder body and configured to be operated to release the one or more releasable couplers from the implantable prosthetic valve.

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 peripheral leakage prevention material, a peripheral leakage prevention device, a peripheral leakage prevention skirt edge, a mold, an artificial heart valve, an artificial implant and a related method. The artificial implant comprises a support and a radial deformable simple structure, and the support is provided with a through blood flow channel; each valve leaflet is provided with a fixed edge and a free edge which are opposite to each other, the fixed edges are fixed to the support, and the free edges are used for controlling the blood flow channel; the peripheral leakage prevention structure is arranged in the circumferential direction of the support, and the peripheral leakage prevention structure is a plugging assembly, at least one part of the plugging assembly protrudes (extends) to the support in the radial direction, and the plugging assembly is of a deformable structure; and / or the outer skirt edge wraps the periphery of the bracket. The perivalvular leakage prevention structure can enable the inflow end of the stent to form a self-adaptive plugging effect, and perivalvular leakage is reduced.

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.

The application relates to an artificial implant valve prosthesis, which comprises a valve frame and valve leaves integrally formed with the valve frame; the valve frame is provided with valve legs connected with the valve leaves; the valve leaves are provided with fixed edges connected to the valve frame and free edges, the free edges of the valve leaves can be attached to each other to form a closed state of the artificial valve; the valve leaves comprise a base layer and a reinforcing layer; wherein the reinforcing layer is a woven structure, and the reinforcing layer is connected to the valve legs. By adding the reinforcing layer to the valve leaves in addition to the base layer, and connecting the reinforcing layer to the valve legs, when the artificial implant valve is opened and closed, the reinforcing layer effectively disperses the stress at the position of the valve legs when the valve is opened and closed, and can play an auxiliary supporting role to assist the valve legs, thereby solving the problem of stress concentration at the position of the valve legs of the valve frame, reasonably improving the fatigue resistance of the valve frame, effectively improving the opening and closing times of the valve leaves, prolonging the service life, and reasonably reducing the replacement frequency of the artificial valve.