16results about How to "Implanted accurately" 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 application provides a valve repair system. A pre-clamping device in the valve repair system comprises a delivery shaft and a clamping assembly. The delivery shaft is provided with an axial delivery cavity and a receiving cavity. The delivery cavity penetrates through opposite ends of the delivery shaft, and the receiving cavity penetrates through the distal end of the delivery shaft. The delivery cavity is used to movably install a suture implant device. The clamping assembly comprises an upper clamping member and a lower clamping member. The upper clamping member comprises an upper clamping push rod movably installed in the receiving cavity and an upper clamping portion arranged at the distal end of the upper clamping push rod. The lower clamping member comprises a lower clamping push rod movably installed in the receiving cavity and a lower clamping portion arranged at the distal end of the lower clamping push rod. The pre-clamping device has a working state. In the working state, the upper clamping portion and the lower clamping portion are located outside the receiving cavity. The upper clamping portion has a first clamping surface, and the lower clamping portion has a second clamping surface. The first clamping surface cooperates with the second clamping surface to clamp a valve leaflet. The area ratio of the first clamping surface and the second clamping surface to the valve leaflet is greater than or equal to 1 / 6 and less than 1.

The invention relates to the field of mold machining equipment, in particular to automatic implanting equipment for mold forming. According to the technical scheme, the device comprises a rack, and a multi-station turntable, an iron ring feeding device, a copper nut feeding device, a PIN feeding device, a copper bar feeding device, a first implanting device, a second implanting device and a third implanting device which are arranged on the rack, the first implanting device is used for sucking iron rings from the iron ring feeding device and implanting the iron rings into a mold, the second implanting device is used for sucking copper nuts and PINs from the copper nut feeding device and the PINs feeding device which are arranged side by side and implanting the copper nuts and the PINs into the mold, and the third implanting device is used for sucking copper bars from the copper bar feeding device and placing the copper bars into the mold. The device has the beneficial effects that the position of the mold can be flexibly adjusted according to actual implantation steps, meanwhile, different feeding devices and suction implantation devices are designed according to the structural characteristics of iron rings, copper nuts and PINs, rapid and accurate implantation of various small accessories can be achieved, and the mold forming efficiency is improved.

The application provides a parameter design method of a acetabular revision guiding support based on image modeling, and belongs to the field of medical instruments, and comprises the following steps: establishing an acetabular coordinate system, and extracting geometric parameters of medical images of a bone defect area; defining a plurality of bone trabecula metal acetabular cup outer cup abduction angle, anteversion angle and vertical upward height, and coupling to obtain a limited parameter combination; respectively calculating the contact volume ratio η of the bone trabecula metal acetabular cup and the bone defect area and the distance Doffse from the rotation center of the outer cup to the healthy rotation center; screening a group of optimal parameters according to the numerical values of η and Doffse; and designing a guiding support for the outer cup according to the optimal parameters. The application provides a simple, efficient and accurate digital solution for Paprosky III type acetabular defect revision, and the core geometric quantification method and guiding support design can be expanded to other complex bone defect repair, and has significant clinical application value and technical foresight.

This invention relates to the field of orthopedic repair technology, and provides a 3D-printed mortise-and-tenon composite drug-loaded femoral head necrosis reconstruction rod and its preparation method. The reconstruction rod includes a skeleton, the inner cavity of which has a three-dimensional, interconnected, micron-scale topological porous structure; both the outer surface of the skeleton and the surface of the micron-scale topological porous structure are covered with a drug composite layer; the outer surface of the skeleton has multiple tenons for forming a mortise-and-tenon lock with the inner wall of the femoral head medullary cavity; the drug composite layer contains a first drug that inhibits osteoclast activity and a second drug that promotes osteoblast differentiation. This invention achieves anti-rotation and anti-settlement mechanical locking with the host bone through a biomimetic mortise-and-tenon structure, and actively regulates the local bone repair microenvironment by loading dual drugs that inhibit osteoclast activity and promote osteoblast differentiation, ultimately achieving bio-integrated fixation mimicking natural bone.

The present invention discloses a composite microstructure broach imitating crab claw hair and a preparation method thereof. In the cylindrical pit-shaped microstructures of odd-numbered rows opened on the front blade face and the rear blade face of each blade tooth of the present invention, carbon fibers are planted, in the cylindrical pit-shaped microstructures of even-numbered rows, nylon fibers are planted, and in the cylindrical pit-shaped microstructures opened on the two blade side faces of each blade tooth, lead and copper mixed fibers are planted. Based on the study of the functions and distribution of crab claw hair, the present invention obtains the distribution form of microstructure imitating crab claw hair, opens microstructures on the front blade face, the rear blade face and the two blade side faces of each blade tooth of the broach, and imitates the different functions of crab claw hair, implants carbon fibers or nylon fibers in the microstructures at different positions of the front blade face and the rear blade face, so that the surface of the broach has the functions of wetting, lubrication and liquid self-transportation, and implants lead and copper mixed fibers in the microstructures of the two side blade faces, so that the broach has the functions of vibration suppression and cooling.

The present invention provides a vertebral lamina distraction device. The vertebral lamina distraction device includes: a clamping mechanism, including a clamping portion for clamping or releasing a component to be installed; a conveying mechanism, including a fixed structure and a movable structure connected to the fixed structure, the clamping mechanism is connected to the fixed structure and is movably arranged relative to the fixed structure, the movable structure includes a connecting member that can be connected to a component to be implanted, and the movable structure is movably arranged relative to the fixed structure to drive the component to be implanted to move along a predetermined path. In the technical solution of the present invention, the vertebral lamina distraction device can accurately implant the component to be implanted into the vertebral lamina while distracting the vertebral lamina within a limited field of view and an operable range, thereby facilitating the operation.

The invention discloses a microneedle percussion device and method suitable for in-vivo minimally invasive treatment, and belongs to the technical field of medical instruments, the microneedle percussion device comprises a percussion tube body, a percussion column, two pull rod handles, a trigger piece, a pressurization end cover, a protection sleeve and a microneedle adapter, guide sliding grooves are symmetrically formed in the two sides of the percussion tube body, and a trigger limiting hole is formed in the side wall of the percussion tube body; the percussion column comprises a percussion column body and a percussion extension rod, and a pull rod mounting groove and a trigger mounting groove are formed in the side wall of the percussion column body; the pull rod handle is slidably connected into the guide sliding groove and connected into the pull rod mounting groove. The triggering piece is connected in the triggering mounting groove and can be clamped in the triggering limiting hole; an elastic piece supported at the top end of the percussion column is arranged in the pressurizing end cover; the protective sleeve is correspondingly connected to the lower end of the percussion tube body; and the microneedle adapter is connected in the protective sleeve in a sliding manner and is connected with the lower end of the percussion extension rod. The micro-needle patch is percussed and punctured into the skin or deep tissue by controlling the percussion column to push the micro-needle adapter downwards, and precise implantation of the micro-needle patch is completed.

The utility model discloses a needle assisting component, which comprises a needle assisting device and a needle assisting needle head coaxially installed, the needle assisting needle head is used for connecting an indwelling component, the needle assisting device is composed of a base, a main body shell, a support, a needle assisting key and a needle releasing key, the main body shell is connected with the base to form a containing space, and the support is partially located in the containing space. The support is arranged on the main body shell, the needle-assisting needle head is fixed at the bottom end of the support and can move up and down, the needle-assisting key is arranged outside the support, the support is arranged in the main body shell, the support is controlled to drive the needle-assisting needle head to move up and down, and the needle-releasing key is installed in the support. Through the whole needle assisting assembly, the indwelling soft needle and the monitoring probe can be rapidly, stably and accurately implanted under the skin without pain, meanwhile, the needle is very convenient to remove, operation is easy and safe, in addition, the needle assisting needle head is installed and detached under the protection condition, environment friendliness and safety are achieved, secondary damage to a patient is avoided, and the use experience of the patient is improved.

The application provides a twice clamping valve repair device, which comprises a pushing catheter, a chuck assembly and a pre-clamping assembly. The chuck assembly comprises a chuck push rod movably arranged in the pushing catheter, a proximal chuck and a distal chuck which can be opened and closed relative to each other. The pre-clamping assembly comprises an upper clamping piece and a lower clamping piece. The upper clamping piece comprises an upper push rod and an upper clamping part arranged at the distal end of the upper push rod. The lower clamping piece comprises a lower push rod and a lower clamping part arranged at the distal end of the lower push rod. The valve repair device has a working state. In the working state, the upper clamping part has a first clamping surface, the lower clamping part has a second clamping surface, the first clamping surface and the second clamping surface cooperate to clamp the valve leaflet, and the proximal chuck and the distal chuck cooperate to clamp the valve leaflet again. The ratio of the area of the first clamping surface to the area of the valve leaflet and the ratio of the area of the second clamping surface to the area of the valve leaflet are both greater than or equal to 1 / 6 and less than 1, so that the valve leaflet can be prevented from being folded and the effect of the operation can be ensured.

The invention relates to the technical field of agricultural seeding, and discloses an agricultural seeding machine with a soil covering function, the agricultural seeding machine comprises an agricultural seeding machine rack, a drilling mechanism, a seed placing mechanism and a soil covering mechanism, the front end of the agricultural seeding machine rack extends upwards, and a front axle rod is rotatably connected to the middle of the agricultural seeding machine rack in a penetrating manner; a rear shaft rod is rotatably connected to the middle of the rear end of the agricultural seeder rack in a penetrating mode, rear wheels are installed at the two ends of the rear shaft rod, the drilling mechanism is fixedly arranged in the middle of the agricultural seeder rack, the seed placing mechanism is fixedly arranged in front of the agricultural seeder rack, and the soil covering mechanism is fixedly arranged in rear of the agricultural seeder rack. And the soil covering mechanism is positioned behind the drilling mechanism. According to the agricultural seeding machine with the soil covering function, the drilling force can be adjusted according to different soil conditions, the seeding precision is improved, seeds can be effectively covered, soil can be effectively compacted, the sustainable development of agriculture is promoted, and the agricultural seeding machine can work in different types of farmlands.

The utility model discloses a transcatheter aortic valve implanting operation conveying device with a valve positioning function, and relates to the technical field of aortic valve implanting operation instruments, the transcatheter aortic valve implanting operation conveying device comprises a driving mechanism, one end of the driving mechanism is movably connected with a conveying mechanism, and the conveying mechanism is provided with a catheter in a clamping mode. The camera is arranged at the right end of the catheter to provide image guidance, in the operation process, a surgeon is helped to accurately guide the device to reach the correct position through the camera by using the real-time image technology, correct implantation of an artificial valve is ensured, the conveying disc is rotatably provided with the conveying rod through the fixing screw, and the conveying disc is convenient to use. The fixing screw deviates from the center point of the conveying disc, the conveying motor drives the conveying disc to rotate and drives the conveying rod to transversely reciprocate after rotation, and the driving mechanism is rotationally connected with the conveying mechanism through the connecting screw, so that the conveying mechanism is driven to reciprocate on the outer surface of the guide pipe and is matched with the conveying mechanism to clamp and release the guide pipe. And the catheter can be conveyed in or continuously pulled out.

The utility model provides a bone nail, a bone nail assembly and a surgical robot. The bone nail comprises a body and a locking piece. A self-tapping thread is arranged at the front end of the body, a transmission structure is arranged at the rear end of the body, and the body is further provided with a first through hole penetrating through the body from the front end to the rear end. The locking piece is used for being installed at the rear end of the body to seal the first through hole. According to the bone nail, a plurality of bone nails can be conveniently and adjacently implanted, and the requirements of multi-electrode implantation, multi-fiber ablation and other scenes where the bone nails need to be densely implanted are met; the bone nail implantation device can be matched with a screwing piece and a surgical robot to stably and accurately implant a bone nail in the planned direction, implantation direction deviation caused by hand shaking and uneven force application is avoided, the implantation direction of the bone nail does not need to be corrected many times, extra wounds are reduced, and the infection risk is reduced through a locking piece.

The invention discloses an anti-toppling rice transplanter which comprises a bottom plate, moving wheels used for driving are connected to the bottom plate, a placing plate frame used for placing seedlings is installed on the bottom plate, a supporting vertical plate is connected to the bottom plate, and a seedling inserting structure used for seedling inserting is installed on one side of the supporting vertical plate. According to the anti-toppling rice transplanter, seedlings placed on the grillage are pushed to a seedling transplanting position. And then, in the next seedling transplanting process, the seedlings are accurately planted into the soil. The linkage of the whole structure is tight and efficient, no extra equipment or system is needed for control, and the smoothness of the rice transplanting process and the uniform distribution of the rice seedlings are ensured.

The utility model discloses a double blasting bead high-speed accurate implanting device which comprises a feeding disc and an implanting disc, a feeding gas distribution fixed wheel in front is provided with a feeding gas distribution negative pressure groove and a feeding gas distribution positive pressure groove, a feeding rotating wheel is provided with a radial feeding channel, the radial feeding channel is communicated with a feeding port formed in the center of the feeding rotating wheel, and the feeding port is communicated with a feeding port formed in the center of the feeding rotating wheel. A feeding gas distribution negative pressure hole communicated with the feeding gas distribution negative pressure groove and a feeding gas distribution positive pressure hole communicated with the feeding gas distribution positive pressure groove are formed in the radial feeding channel; the implantation disc is composed of an implantation gas distribution fixed wheel and an implantation rotating wheel which is coaxially arranged with the implantation gas distribution fixed wheel, implantation gas distribution positive pressure holes and arc-shaped implantation gas distribution negative pressure grooves are formed in the implantation gas distribution fixed wheel, and a plurality of material suction nozzles are arranged on the circumferential surface of the implantation rotating wheel. The device is simple in structure, convenient to use and capable of rapidly and accurately implanting double blasting beads of a filter stick, broken bead shells, broken bead liquid and other impurities can be effectively removed in the process, and the blasting bead implanting quality is guaranteed.

The invention discloses a microneedle implantation device and method.The microneedle implantation device comprises a microneedle clamping module, a microneedle cutting module, an angiography module and a mechanical arm, the microneedle clamping module is used for clamping and releasing a microneedle, the microneedle cutting module is used for cutting a microneedle body of the microneedle, and the angiography module is used for carrying out angiography on the microneedle body of the microneedle; the mechanical arm is detachably connected with the microneedle clamping module, the mechanical arm is used for driving the microneedle to move in the cutting and implanting process, and the blood vessel imaging module is detachably connected with the mechanical arm. The micro-needle implanting equipment can automatically complete accurate implantation of the micro-needle through the automatic mechanical arm under the assistance of the navigation tracking system, and under the condition that the micro-needle body has the risk of puncturing a blood vessel, the micro-needle cutting module is used for cutting the micro-needle body in a specific area in advance to avoid the blood vessel, so that the blood vessel puncturing risk is reduced, and the blood vessel puncturing risk is reduced. Therefore, it is guaranteed that the microneedle is rapidly, accurately and safely implanted into a designated intracranial area. The micro-needle implanting equipment is simple to operate, high in implanting precision, high in safety and high in practicability.