22 results about "Bone grafting" patented technology

1. The name of the design product: Maxillary sinus lifter. 2. The use of the design product: Instruments for maxillary sinus bone grafting. 3. The design features of the design product: In shape. 4. The picture or photo that best indicates the design features: Assembly state diagram.

The present application relates to a kind of whole guide plate for bone graft sandwich bone grafting simultaneous implantation and manufacturing method, including the implantation guide plate of bone graft and implant, bone graft positioning finishing plate, tooth positioning device of bone area, osteotomy guide plate, tooth bone model of edentulous area, tooth bone model of bone area, the top of the implantation guide plate of bone graft and implant is connected with the bottom of bone graft positioning finishing plate, can be set with the several positioning points corresponding to bone area position in bone area by the guide drill needle hole on bone graft positioning finishing plate, can accurately transplant the bone graft taken to bone area;The osteotomy guide plate can be connected with tooth positioning device of bone area, also can be fixed in bone area according to the several positioning points;The present application can realize accurate, minimally invasive, safe to obtain intraoral autologous bone graft, can provide bone graft acquisition, finishing, implantation and implantation whole process guidance for surgeon, reduce the difficulty of operation, assist surgeon to complete the whole operation more accurately, efficiently, safely.

The application discloses a surgical guiding device for orthopedics. The positioning member comprises a front section and a rear section which are sequentially connected from front to back, and the rear end of the front section and the front end of the rear section are fixedly connected. The sliding member is slidably installed on the rear section of the positioning member through a guide rail, and is provided with a scale from the front end to the rear end. The locking member is arranged on the positioning member, and the sliding member is locked at a selected position on the positioning member. The device allows flexible adjustment of the drilling position through the sliding member in vitro, and realizes precise drilling of parallel double bone tunnels of the glenoid cavity through a small incision. The device has the advantages of simple operation, small trauma, accurate positioning and the like, is suitable for improving the alignment accuracy of the bone tunnel and the success rate of the surgery in the shoulder glenoid bone grafting surgery, and greatly simplifies the operation steps.

This utility model provides a lateral zero-notch interbody fusion fixation device for the lumbar spine, relating to the field of medical devices. The fixation device includes a support body and at least four fixation members. The support body is wedge-shaped, with a through hole in the middle of its inclined surface. One end of the support body has an implantation guide, and the other end has at least four inclined threaded countersunk holes. The four fixation members are divided into two groups, each group passing through the threaded countersunk holes into the support body and extending obliquely towards the upper and lower end faces of the support body facing the adjacent vertebral body. Two fixation members facing the same side have different inclination angles, forming a non-coplanar interlocking fixation structure between the four fixation members and the vertebral body. This application enables oblique lateral interbody fusion with bone grafting and internal fixation, further improving interbody stability. It allows OLIF (Lumbar Interbody Fusion) to achieve internal fixation and interbody fusion device implantation in a single surgery, with good vertebral body compatibility, low risk of loosening or dislodgement, and stable implantation.

A thermally balanced filler bone graft scaffold includes a scaffold shell and a base. The scaffold shell has an inner cavity. The base has a multi-purpose chamber at its tail end and a heat convection tube assembly at its head end. The multi-purpose chamber is connected to the surface of the head end of the base via the heat convection tube assembly. The heat convection tube assembly connects the inner cavity of the scaffold shell with the multi-purpose chamber of the base. This provides a stable support base, promotes the bone integration process, achieves thermal balance of the overall scaffold, appropriately increases the internal temperature of the femoral head, accelerates local blood circulation in the femoral head, enhances cell activity, accelerates metabolism, promotes the proliferation and differentiation of osteocytes and other related cells, promotes angiogenesis and bone repair, facilitates gas exchange, promotes the drainage of effusion and gas, continuously releases intraosseous pressure, and provides storage space and pathways for therapeutic drugs and / or nutrients. This implant achieves multi-system synergy and promotes overall rehabilitation.

A spine internal fixing device with a fusion function comprises a pedicle screw, the pedicle screw comprises a screw body, a screw tail is arranged at the upper end of the screw body, a nut is connected to the screw tail through internal threads, the screw body and the screw tail are of a honeycomb structure simulating cancellous bone, and solid external threads are arranged on the outer surface of the screw body. According to the spinal internal fixation device with the fusion function, a full-assembly simulation cancellous bone honeycomb structure of a pedicle screw rod nut and a matched connecting piece is prepared by adopting a 3D printing technology, and meanwhile, solid structures of key stress parts such as an external thread tip threaded connection surface are reserved so as to guarantee early mechanical fixation strength; after the components are assembled, a continuous bone ingrowth channel is formed, so that the transformation of internal fixation of the spine from temporary mechanical support to permanent osseous fusion is realized, and various intervertebral, intervertebral, posterior lateral and transverse process bone grafting fusion steps in a traditional spine fusion operation can be omitted.

This utility model relates to the field of spinal bone grafting technology and proposes a spinal bone grafting device, including a storage tube with a feeding hopper on its exterior. A connecting pipe is fixedly connected to the top of the storage tube, and a conveying pipe is fixedly connected to the bottom. Sliding grooves are formed on both sides of the inner cavity of the connecting pipe. Sliding rods are slidably connected inside each of the two sliding grooves. A bearing seat is fixedly connected between the two sliding rods. A lead screw is provided inside the bearing seat, and a knob is fixedly connected to the top of the lead screw. A support plate is fixedly connected inside the connecting tube, and two fixing rods are fixedly connected to the bottom of the bearing seat. This technical solution solves the problem in existing technologies where implanted bone materials may be of varying sizes, irregular shapes, or have excessively rough surfaces, which increases friction and resistance during the conveying process, leading to blockage of the conveying port.

Provided herein are medical devices and methods for treating bone fractures. The medical device comprises a body, a scaffold within the body, and a means for focusing bone growth throughout the body. The device is designed to minimize shear stresses on a distal tip and distribute micromotion to encourage bony ingrowth. The scaffold may include a triply periodic minimal surface (TPMS) with a cubic repeating pattern defining walls within the scaffold, and the TPMS may be helically wrapped around a central axis of the device. The device may also house biologic agents and accommodate an autologous product. In some embodiments, the medical device is a bone screw or a pedicle screw, designed to reduce common issues such as screw loosening, screw backout, and rod breakage. The method of treatment involves implanting the medical device into a patient's bone to aid fracture healing.

The application relates to a transcrestal maxillary sinus bottom lifting auxiliary bone grafting device and a working method thereof, and belongs to the technical field of medical devices. The device comprises a flaring device and a fixer. The flaring device comprises a hollow cylinder, a conical block and a cylindrical filling block which are sequentially arranged from top to bottom, the flaring device is funnel-shaped as a whole, and the hollow cylinder is symmetrically provided with fixing holes. The fixer comprises a connecting column, a nut, a sliding block, a positioning protrusion, two first connecting rods and two second connecting rods. The connecting column is provided with a thread at one end, the thread is provided with the nut, the other end of the connecting column is hingedly connected with the two second connecting rods, the sliding block is slidably sleeved on the connecting column, the two first connecting rods are respectively hingedly connected to the two second connecting rods, and the two second connecting rods are respectively provided with the positioning protrusions at the ends. The application can fully expose the bone defect position, ensure the filling position accuracy of the bone powder filling device, conveniently observe the bone powder filling amount, and improve the bone powder filling effect.

This invention provides a novel bone graft retention structure that can securely fix the bone graft material during the healing period, and during or after the healing period, the bone graft fixing component is safely absorbed into the body through a bioabsorption reaction without the need to remove it from the body through additional surgery, and is then safely excreted from the body. [Solution] A holding structure for granular material, wherein the granular material is a bone graft material in the shape of fine particles that fill the gap between the root of an implant embedded in the living body and the bone of the living person opposite the root, and a mesh-like material having a mesh structure holds and fixes the bone graft material in all directions.

The application discloses a lumbar intervertebral fusion support, which is used for lumbar intervertebral bone grafting fusion and comprises a fusion support body and a pad with an anatomically fitted footprint surface; the fusion support body is X-shaped as a whole; the pad comprises an upper pad and a lower pad; the upper pad and the lower pad are detachably installed on the fusion support body; the fusion support body is made of a nickel-titanium alloy material; and the pad is made of PEEK. The application further discloses a preparation method of the lumbar intervertebral fusion support and a bone grafting fusion method using the lumbar intervertebral fusion support. The application further discloses application of the lumbar intervertebral fusion support in bone grafting fusion.

This utility model discloses a medical shoulder arthroscopy bone grafting tool, comprising: a hollow sheath; an inner core mechanism or implantation mechanism that can be inserted into the sheath; the inner core mechanism includes an inner core rod and an operating block connected in sequence, the inner core rod extending into the sheath, and the inner core rod and the operating block having interconnected first guide pin holes; the implantation mechanism includes a fixing block, a connecting rod, and an implantation block connected in sequence, the connecting rod and the implantation block extending into the sheath, and the fixing block, the connecting rod, and the implantation block having interconnected second guide pin holes, the fixing block having several first guide wire holes, and the implantation block having several second guide wire holes. This device, through the use of the sheath, inner core mechanism, and implantation mechanism, can not only adapt to regular allogeneic bone blocks, but also to the irregular shape and size of autologous iliac bone, allowing for more precise bone block implantation, improving the success rate of bone grafting, reducing interference with surrounding soft tissues during the bone grafting process, helping to protect surrounding tissues, reducing surgical trauma, and accelerating postoperative recovery.

A device for shaping and cutting a bone graft comprises a main body extending along a longitudinal axis from a lower end to an upper end and having inside it a housing for the insertion of the bone graft to be shaped, an upper opening located at the upper end for the insertion of the bone graft into the housing, a lower support designed to support the bone graft, and an upper surface defining a cutting plane placed at the upper end and containing said upper opening, wherein the cutting plane is inclined with respect to the longitudinal axis by an angle ranging between 90° and 30°, preferably between 90° and 60°.

The utility model relates to medical auxiliary device technical field especially is used for intervertebral bone grafting's fixing device. The utility model discloses the fixed sleeve that sets up along vertical up and down direction and is set to the fixed sleeve of bone grafting funnel lower part, is located fixed sleeve and is used for adjusting the height adjusting subassembly of bone grafting funnel lower end protruding fixed sleeve lower end distance, a pair of respectively fixed sleeve left and right sides and is used for fixing the fixed sleeve and is arranged on the corresponding side vertebral bone fixed mounting assembly and is arranged between two fixed mounting assemblies and is used for adjusting the interval adjusting subassembly between two fixed mounting assemblies. The device solves the problem that the depth of bone grafting funnel is difficult to adjust stably.

The utility model provides a kind of bone grafting assembly for orthopedics minimally invasive surgery belongs to medical instrument technical field. Bone grafting assembly for orthopedics minimally invasive surgery, including and kirschner wire, hollow nail and sleeve, hollow nail is movably connected in the inside of sleeve, kirschner wire is movably connected in the inside of hollow nail, kirschner wire is fixedly connected in the inside of patient's skeleton, sleeve includes magnetic attraction part, side connecting part, corner groove and straight guide groove, side connecting part outside is detachably connected with stopper, further include: material pushing rod, material pushing rod movably connected in the inside of sleeve, material pushing rod includes long rod, material pushing piston, feeding rotary disc and dosing cylinder, long rod is provided with the increase of friction line in long rod far from material pushing piston one end, dosing cylinder outside is fixedly connected with sliding link convex. The utility model has the advantages of can fast independent positioning connection, can adapt to each attitude and be convenient for filling material.

The present disclosure relates to a bone grafting device for osteochondral transplantation, comprising a bone grafting device body, a connecting rod and a positioning device, wherein the bone grafting device body has a receiving cavity which forms an open end at the lower end of the bone grafting device body, and the edge of the open end is provided with a ring of sawteeth; one end of the connecting rod is connected with the bone grafting device body, and the other end is used for connecting a driving device; the positioning device is configured to be guidedly matched with the bone grafting device body or the connecting rod, and is configured to be axially displaced relative to the bone grafting device body or the connecting rod, and the lower end of the positioning device is configured to be a positioning part for positioning the osteochondral tissue. The bone grafting device of the present disclosure can ensure that the bone grafting device is accurately placed at a predetermined position by providing the positioning device, so that the cutting process is more accurate, and the positioning device can be axially displaced to accurately control the depth of the bone grafting device into the bone, thereby avoiding the problems of excessive or insufficient bone grafting.

A bone press includes a base; a compression plate located opposite to the base; a housing that extends between the base and the compression plate, the housing extending along a longitudinal axis of the bone press; a pressing zone within the housing and between the base and the compression plate along the longitudinal axis of the bone press; and an actuator to provide relative movement between the compression plate and the base to create compression in the pressing zone.

A device for bone graft fixation, replacement, or abutment, includes a non-resorbable portion made of a non-resorbable biocompatible material and a resorbable portion made of a resorbable biocompatible material joined to the non-resorbable portion. The resorbable portion is resorbed in a pre-determined timing such that mechanical properties of the device are modulated to avoid stress shielding of a bone and to control stress concentrations in the device below a predetermined level to avoid failure of the device.

The application relates to a transpedicular intravertebral bone grafting device which comprises a bone grafting assembly and a fixing frame; the bone grafting assembly comprises a bone grafting sleeve and a connecting piece, the bone grafting sleeve is detachably connected with the fixing frame through the connecting piece, and the fixing frame is used for being detachably connected with a surgical bed. The bone grafting device can effectively fix the bone grafting assembly, ensures the accurate position of the bone grafting assembly in the vertebral body, prevents the bone grafting assembly from moving or falling off in the vertebral body, enhances the stability of bone grafting, and improves the accuracy and safety of surgery.

The present application relates to the field of spinal surgery, in particular to a multifunctional intervertebral fusion cage for spinal surgery and its application method, wherein the intervertebral fusion cage comprises a fusion cage body, a plurality of bone grafting areas are opened in the center of the fusion cage body, a plurality of guide teeth are arranged on the upper surface and the lower surface of the fusion cage body, a plurality of fixing holes are opened on the two side walls of the fusion cage body along the length direction of the fusion cage body, a nickel-titanium alloy ring is arranged in each fixing hole, the top and the bottom of the nickel-titanium alloy ring are fixedly connected with the top wall and the bottom wall in the corresponding fixing hole respectively, a medicine storage box for storing the medicine for promoting bone growth is arranged on both sides of the fixing hole along the length direction of the fusion cage body, and a medicine spraying assembly for controlling the medicine spraying by the deformation of the nickel-titanium alloy ring is arranged in the medicine storage box. The present application utilizes the deformation of the nickel-titanium alloy ring to absorb the stress of the spine activity to realize the shock absorption and buffering, and at the same time drives the medicine spraying assembly to spray the medicine for promoting bone growth in the medicine storage box to the bone grafting area, so as to promote the proliferation of bone cells and the bone fusion process.

This utility model belongs to the field of dental implant equipment technology, specifically a titanium mesh for dental implants. It includes a rectangular titanium mesh main body, with detachable titanium mesh sub-bases on its four side walls. The sub-bases are strip-shaped plates. A main positioning hole is located in the center of the main body, surrounded by multiple auxiliary positioning holes. The side walls of the auxiliary positioning holes have radiating strip-shaped holes. The sub-bases have uniformly distributed mounting holes. The dentist connects the sub-bases according to positioning needs, making the operation simple and convenient, saving materials, and reducing treatment costs. The auxiliary positioning holes allow the dentist to select appropriate positions for fixation and facilitate blood flow through the titanium mesh to the gums, promoting gum growth and healing. The strip-shaped holes allow for shape adjustment on the main body corresponding to the auxiliary positioning holes, adapting the shape to the shape of the gum, ensuring a closer fit after bone grafting and improving the stability of the implant.

The present invention provides an instrument and method for removing the bone cylinder from inside the humeral head without cutting the humeral head. [Solution] The graft release bell instrument comprises a central shaft, a bell detachably coupled to the central shaft, an inner blade coupled to the central shaft, and an outer blade coupled to the bell. A method for extracting a cancellous bone graft includes inserting the graft release bell instrument into the cut portion of the bone, checking the depth of the cut portion using the scale on the side of the graft release bell instrument, rotating the graft release bell instrument to cut the cancellous bone, withdrawing the graft release bell instrument from the cut portion, and separating the graft from the graft release bell instrument.