52 results about "Artificial Implants" patented technology

Provided is a delivery system for an artificial implant, comprising a control handle (400) and a catheter assembly (200) connected proximally to the control handle. The catheter assembly (200) comprises an outer sheath (240) and an inner shaft assembly located within the outer sheath (240), the artificial implant (100) being connected to the distal end of the inner shaft assembly and controlled by the control handle (400). The control handle (400) comprises a first handle (41) and a second handle (42) operatively cooperating with each other, the first handle (41) being configured to drive axial movement of the outer sheath (240) to achieve deployment and folding of the artificial implant, and the second handle (42) being configured to control release of the artificial implant to achieve detachment of the artificial implant from the delivery system.

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.

To provide prosthetic implants, such as self-expanding prosthetic heart valves and support structures, and associated delivery apparatuses.SOLUTION: A prosthetic implant has a self-expanding frame with an inflow end, an outflow end, and a plurality of struts interconnected at junctions. At least a portion of the plurality of struts has, at at least one junction, a reduced strut width configured to reduce or prevent infolding of the frame during recapture into a delivery cylinder of a delivery apparatus.SELECTED DRAWING: Figure 37

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.

An artificial implant is provided comprising: an implant body including a shell and a filler filled inside the shell; and a coating layer formed on at least a portion of the surface of the implant body; wherein the coating layer comprises particulate acellular dermal tissue (ADM) and hyaluronic acid, the particulate acellular dermal tissue is dispersed in a particle form within the coating layer, and the average particle size of the particulate acellular dermal tissue is 450 to 650 μm.

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.

An artificial implant, an interventional system, and a method for driving a blocking member on an artificial implant to deform. The artificial implant comprises: a stent; and a blocking member, which is connected to the stent and is arranged in the circumferential direction of the stent, the blocking member being provided with a first guide structure. When the stent is in a deployed state, at least part of the blocking member protrudes out of the circumference of the stent; and when the stent is in a compressed state, the blocking member is folded at the first guide structure so as to fit to the deformation of the stent. Providing the blocking member can effectively reduce the occurrence rate of perivalvular leakage; the first guide structure can enable the blocking member to fit to the deformation of the stent, thereby effectively preventing the defects of access limitation and being prone to dislodgement and rupture, and providing a sufficient structural basis for optimization setting of artificial implants.

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.

The present invention relates to a positioning member, a valve delivery system and a balloon expansion type interventional device. The positioning member includes a fixing part and a limiting part. The fixing part is connected to the limiting part. The limiting part has a first working state and a second working state. The limiting part is tubular and includes a retaining part and a connecting part arranged alternately in the circumferential direction. In the first working state, the limiting part is folded, and the retaining part is used to position the artificial implant. The connecting part shrinks and / or folds. In the second working state, the limiting part is opened, and the connecting part is stretched and / or unfolded in the circumferential direction, so that the circumferential size of the connecting part in the second working state is greater than the size of the connecting part in the circumferential direction in the first working state. The present invention uses a foldable limiting part to limit the shape of the retracted balloon so that it will not flatten and cause scratches on human blood vessels.

The present application discloses a delivery system for a recyclable artificial implant, which includes a catheter assembly and a control handle. The catheter assembly includes a sheath and an inner shaft assembly for loading and retrieving the artificial implant. The sheath includes: a tube body, which has opposite distal and proximal ends along its own axial direction, and the distal end is provided with a plurality of support rods arranged at intervals along the circumferential direction of the tube body. Each support rod has a relative retracted state and an everted state. It is characterized in that more than two connecting strips are arranged axially between adjacent support rods. Each connecting strip is reciprocally folded in the retracted state and has a tendency to straighten relative to the retracted state in the everted state; in the direction from the proximal end to the distal end, the self-straightening lengths of the connecting strips increase in sequence, and the axial spans L1 of the connecting strips increase in sequence. Both ends of the same connecting strip are connected to the corresponding side of the support rod, and the connection parts have the same axial position. The connecting strips on both circumferential sides of the same support rod are symmetrically arranged.

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 invention discloses an artificial implant delivery system convenient to control, which comprises a control handle and a catheter assembly, the control handle comprises a first handle and a second handle which are matched with each other, and each handle comprises a support member and a driving mechanism arranged on the support member; the supporting body is provided with a guide groove extending in the axial direction, the driving mechanism comprises a base moving along the guide groove and a driving sleeve rotationally installed on the periphery of the corresponding supporting body, the driving sleeve and the base are in threaded transmission, and the near end side of the guide groove of the supporting body is provided with a rotary locking mechanism capable of limiting or allowing the driving sleeve to rotate. The switching of the locking state and the unlocking state of the rotary locking mechanism is beneficial to the in-vivo control of the artificial implant and is convenient for an operator to operate.

1. Name of the design product: Compression gripper. 2. Use of the design product: In the field of medical devices, for loading artificial implants onto a delivery system. 3. Design key points of the design product: Lies in the shape. 4. Picture or photo that best shows the design key points: Front view.

1. Name of the Design Product: Compression Gripper. 2. Use of the Design Product: Used in the field of medical devices for loading artificial implants onto a delivery system. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph that Best Illustrates the Design Key Points: Front View.

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.