41 results about "Bone chamber" patented technology

The invention provides an interbody fusion prosthesis and an interbody fusion prosthesis component, the interbody fusion prosthesis comprises an interbody fusion main body, the interbody fusion main body is provided with a bone grafting cavity, and the bone grafting cavity penetrates through the surface of the interbody fusion main body to form a first opening in the interbody fusion main body; and the first end plate is movably arranged at the first opening, and the first end plate is provided with a first avoiding position for avoiding the first opening and a first shielding position for covering the first opening. According to the technical scheme, the problem that in the related technology, the bone filling material in the bone grafting cavity has the falling risk is effectively solved.

The present application relates to a device for defining a bone cavity. The device includes a connection member, a reamer, and a guide member. The connecting member includes at least one rotatable connecting mechanism for connecting the guide member and the reamer. The reamer and the guiding component are connected to the two opposite ends of the connecting component respectively. The reamer is arranged to rotate about a pivot of the guide member. The guide member serves as a pivot point. The guide member includes a head and a tail. The tail portion of the guide member is connected to an implant.

The utility model provides a novel shapewear which comprises a shapewear body, cloth is sewn on the back of the shapewear body, and a strip-shaped cavity is arranged between the cloth and the shapewear body. The device further comprises supporting bone structures, the supporting bone structures are inserted into the strip-shaped cavities, each supporting bone structure comprises a cloth bag and fish scale bones made of memory alloy, a plurality of fish scale bone cavities are formed in each cloth bag, and the supporting bone structures are inserted into the fish scale bone cavities. The fish scale bone made of memory alloy has a shape memory function, the supporting position and angle can be flexibly adjusted according to the sitting posture habit, the activity requirement and the physical condition of a user, and personalized supporting experience is provided. The supporting bone structures are inserted into the strip-shaped cavities to be matched with the fish scale bone characteristics, the back curve is better attached, uniform supporting force is provided, local pressure is prevented from being too large, and the comfort degree is improved. Reasonable supporting can help a user to keep a correct sitting posture, the problems of poor postures such as scoliosis and humpback are prevented, and body health is promoted.

The invention discloses a jaw cyst scraping instrument and a using method, and relates to the technical field of medical instruments. The scraping treatment instrument comprises a handle, a flexible connecting rod capable of being manually shaped and a brush head assembly, wherein a bristle unit in the brush head assembly is detachably fixed to a brush base in a magnetic attraction mode; three plastic core materials distributed in an equilateral triangle shape are arranged in the connecting rod, and the outer side of the connecting rod is sleeved with an elastic reset sleeve. The device can adapt to a complex bone cavity form through the moldable connecting rod, and the problem of a scraping blind area of a traditional rigid instrument is solved; the magnetic type bristle unit can be prevented from falling into the body of a patient, and the debridement suitability is improved by matching with the multi-shape bristle unit; the reset sleeve achieves convenient reset of the connecting rod, the operation efficiency and safety are integrally improved, and the postoperative recurrence risk is reduced.

The presented invention discloses a stand-alone unilateral biportal endoscopy device (200) for intervertebral fusion, the device (200) comprising: an arthrodesis cage body (208) having a bone grafting cavity (317) for placing bone grafts; a first locking screw (204), attached to an upper surface of the arthrodesis cage body (208), comprising a first anteriorly pointed drilling tip (403); and a second locking screw (210), attached to a lower surface of the arthrodesis cage body (208), comprising a second anteriorly pointed drilling tip (407); wherein the first locking screw (204) and the second locking screw (210) are inclined at an angle to arthrodesis cage body (208), for contacting a plurality of vertebral bodies (101, 102); the device is posteriorly inserted between the vertebral bodies (101, 102) and is closer to centre of rotation and movement axis (CORA) of the vertebral bodies (101, 102)

The invention relates to the field of dental pulp surgical instruments, and discloses a device for quickly cleaning diseased tissues around apical periodont.The device comprises a guide head, a scraping rod, scraping thorns, an adjusting rod, a main handle, an adjusting knob and an annular clamping groove; the guide head is fixed to the top end of the adjusting rod, the elastic scraping rods are evenly distributed along the circumference of the conical bottom of the guide head, the scraping thorns and the scraping rods are integrally formed, the scraping thorns are in a barb shape and evenly distributed in the length direction of the scraping rods, and the two ends of the scraping rods are connected with the conical bottom of the guide head and an annular clamping groove in the front end of the main handle respectively. And the adjusting knob is sleeved outside the main handle and is in threaded engagement with the adjusting rod. A linkage adjusting structure of the adjusting knob, the adjusting rod and the scraping rod and an elastic material are adopted, and the device can be contracted, unfolded and bent, so that the device is matched with a periapical bone cavity structure, periapical lesion tissues are thoroughly scraped and cleaned, the problems that a manual curette is poor in bone cavity adaptability and has a blind area are solved, the scraping efficiency is high, operation is standardized and safe, bone tissue damage is avoided, and the device is suitable for popularization and application. The cleaning effect is good and the view is clear.

The present invention relates to a mechanical implant for hip and shoulder arthroplasty. The mechanical implant comprises a neck (1) and an end (2), the end (2) which enters into a cavity in the patient's bone and terminates with a movable mechanical part (3) which fits into the metaphysis of the femur or humerus, and the end (2) terminates with two movable parts (4) to fit the end (2) into the neck (1). The two parts of the neck (1) and the movable mechanical part (3) are joined by a screw (5). The present invention enhances stability and facilitates the replacement of the neck (1) in the event of revision.

The present application relates to a kind of intervertebral fusion cage, including body, with the first surface and the second surface of facing away, the body is provided with the bone graft cavity through the first surface and the second surface;Rotary shaft, with the body relatively rotatable connection, the axial end of rotary shaft respectively extends the first surface and second surface.Surperior fusion cage is used when in the process of intervertebral fusion surgery, when doctor needs secondary adjustment fusion cage position, rotary shaft remains unmoved, body can rotate around rotary shaft, since the two ends of rotary shaft are slightly higher than the surface of body, the extrusion and friction between body and vertebral endplate during body rotation will reduce, reduce the probability of body escape;Also reduce the difficulty of doctor rotating and adjusting fusion cage during operation, reduce operation time.In addition, since reducing the secondary extrusion and friction to vertebral endplate, reduce the pain of patient.

The bone fetcher comprises a bone fetcher sheath, a cutting device and a control device. The far end of the control device is connected with the cutting device, and the near end of the control device is arranged at the near end of the bone taking sheath. The bone taking sheath is made of a thin-wall tubular material and comprises a tube wall and a bone taking cavity; when the bone taking device is used, the bone taking sheath is firstly placed into bone tissue, then the control device is operated, the cutting device cuts off the bone tissue at the far end of the bone taking sheath, the bone tissue is reserved in the bone taking cavity and retreats from the bone taking sheath, and the bone tissue is taken out of the body along with the bone taking sheath. Due to the fact that the cutting-off device and the control device which are matched with each other are arranged, bone tissue can be conveniently cut off through in-vitro operation, the bone tissue can be conveniently taken out of a body and is cut off along the cross section, the end face can be smooth and flat, further trimming is not needed after the bone tissue is taken out, and the bone tissue can be conveniently taken out of the body. And the bone transferring device can be directly placed in a position needing bone transferring. Particularly, the electric bone fetcher can realize accurate control of the implantation and cutting process through the host.

This invention provides an interbody fusion device and its preparation method, comprising: metal endplates symmetrically arranged vertically, with a mesh structure on the surface of the metal endplates, the mesh structure including: a bone mesh on the outer surface of the metal endplates, a coupling mesh on the inner surface of the metal endplates, a metal separator layer fixedly disposed between the bone mesh and the coupling mesh, and a linkage locking seat disposed on the inner surface of the metal endplates; a cable passing through the linkage locking seat on the inner surface of the aforementioned metal endplates; a polymer matrix fixed between the aforementioned pair of metal endplates by the aforementioned shear-resistant structure; a bone graft cavity, which is a cavity jointly formed by the metal endplates and the polymer matrix; and a positioning hole penetrating the aforementioned polymer matrix. This application addresses the technical problems that, with prolonged implantation time, complications such as displacement, coating peeling, settlement, stress shielding, bone resorption in adjacent areas, and delayed inflammatory reactions often occur.

The present invention is a fracture reduction device or system adapted for use in bone cavities. The current device is particularly useful in surgical procedures involving fractured bones.

The present invention discloses a cervical vertebra open-door fixing device, which belongs to the technical field of orthopedic implants. The cervical vertebra open-door fixing device comprises a tubular body, the interior of the tubular body is used as a bone grafting cavity, the tubular body has a curvature and a first bayonet for clamping the lateral mass end and a second bayonet for clamping the spinous process end are formed at both ends, respectively, and the second bayonet is a plug-in bayonet. The cervical vertebra open-door fixing device of the present invention has good bending resistance, strong ability to maintain the spinal canal structure, and good bone fusion effect by forming bayonet ports at both ends of the tubular body to clamp and connect the lateral mass end and the spinous process end. The present invention is suitable for laminoplasty.

The invention belongs to the technical field of medical treatment, and discloses an orthopedic reaming device for orthopedic surgery, which comprises a stretching rod, an operating handle, a sliding assembly and a reaming assembly. The extending-in rod is provided with a through hole and a sliding groove, the operating handle is rotationally connected with the extending-in rod, and the sliding assembly and the reaming assembly are slidably connected with the extending-in rod. And the reaming assembly comprises a connecting rod, a resisting transverse rod, a fixed rod, a telescopic rod, a first tool bit and a second tool bit, the connecting rod and the resisting transverse rod are driven by the sliding assembly to slide along the extending rod through rotation of the operating handle, then the telescopic rod and the tool bit are driven to stretch out and draw back, and the hole diameter of a reaming hole is adjusted. The problems that in the prior art, a reaming device is fixed in size, and the reaming area needs to be increased to enter a bone cavity are solved, through the adjustable reaming assembly, the incision area can be reduced, harm of an operation to a patient is reduced, and the operation effect is improved.

The embodiment of the invention provides a prosthesis operation method and device, electronic equipment and a storage medium, and is applied to the technical field of medical instruments. Prosthesis selection information input by the user based on the displayed first thighbone model is received; according to the first skeleton model and the prosthesis selection information, creating a second skeleton model provided with a prosthesis; performing simulation of a preset behavior cycle according to the second skeleton model; when the simulation result meets the preset requirement, the mechanical arm is controlled to prepare a femoral cavity of the patient according to the marked osteotomy line and the second bone model, and a femoral prosthesis is installed; and preparing an acetabular bone cavity of the patient according to the planned filing area and the second bone model, and mounting an acetabular cup prosthesis, so that mounting of a femoral prosthesis and mounting of the acetabular cup prosthesis are realized by controlling a mechanical arm, and the mounting reliability of the prosthesis is improved.

The utility model relates to the auxiliary related technical field of jaw cyst treatment, in particular to an auxiliary guide plate for treating jaw cyst, which comprises a guide plate. The guide plate is provided with a mucosa protection tube which is used for injecting Carnot's liquid into a bone cavity formed after cyst scraping in a jaw cyst scraping hole dug in a mandible main body of a patient for burning. The outer wall of the mucosa protection tube is attached to the inner wall of the jaw cyst scraping hole so as to avoid surrounding mucosa when the residual lesion part of the jaw cyst scraping hole is burnt by Carnoy liquid; the handle, the guide plate and the mucosa protection tube form a mucosa protection mechanism; the mucosa protection tube is used for protecting an external adjacent mucosa while a carnol solution is injected to burn a residual diseased region in a jaw cyst scraping hole, so that the condition that the carnol solution burns the adjacent mucosa is avoided.

The application belongs to the technical field of food processing, and particularly relates to a bone-in chicken processing method. The bone-in chicken processing method comprises the following steps: mixing a polysaccharide gel material with water to obtain a water dispersion of the polysaccharide gel material; heating the water dispersion of the polysaccharide gel material to 60-65 DEG C and then cooling it to below 40 DEG C to obtain a low-gel-strength colloid; and injecting the low-gel-strength colloid into a bone cavity of the bone-in chicken. In the application, the water dispersion of the polysaccharide gel material is heated and then cooled to obtain a low-gel-strength colloid, which is injected into the bone cavity of the bone-in chicken. Thus, when the bone-in chicken is cooked, the low-gel-strength colloid forms a strong heat irreversible gel due to high temperature, so that the flowable material in the bone cavity is solidified together, thereby effectively preventing the flowable material in the bone cavity from flowing out in large quantities, and solving the technical problem of a large area of deep purple blood stasis at the joint of the bone and meat of the bone-in chicken after cooking.

Title: Device for assisting in the fixation of a surgical implant after its placement. The invention relates to a device for assisting in the fixation of a surgical implant after its placement, wherein the implant (2) is intended to be introduced into a bone cavity, fixed therein by means of at least one screw or similar device by passing through the bone material before reaching said implant (2) and penetrating an orifice (20) in the implant, and then screwed into the bone material. It comprises, in association with implant (2) retention means (31) designed to maintain the implant (2) while it is positioned in said bone cavity, drilling guidance means (42) fixedly connected to the retention means (31) by means of conformable connecting means (40, 41) so that the drilling axis (X) is aligned with said orifice (20). Figure for the abstract: Fig. 1

This disclosure relates to orthopaedic implants and methods for repairing bone defects and restoring functionality to a joint. The implants disclosed herein include augment geometries that may approximate a surface contour or bone void along a surgical site and include patterns of peripheral apertures that may be utilized for improved fixation of the implants at the surgical site.

The present application relates to the field of endodontic instruments, and discloses a device for quickly cleaning periapical lesion tissue, comprising a guide head, a scraping rod, a scraping spike, an adjusting rod, a main handle, an adjusting knob and a ring-shaped clamping groove; the guide head is fixed at the top end of the adjusting rod, the elastic scraping rods are evenly distributed along the circumference of the cone bottom of the guide head, the scraping spike is integrally formed with the scraping rod, the scraping spike is in the shape of a barb and is evenly distributed along the length direction of the scraping rod, the two ends of the scraping rod are respectively connected to the cone bottom of the guide head and the ring-shaped clamping groove at the front end of the main handle, the elastic adjusting rod penetrates through the channel of the main handle, and the adjusting knob is sleeved on the outside of the main handle and is in threaded engagement with the adjusting rod. The linkage adjusting structure of the adjusting knob-adjusting rod-scraping rod and the elastic material can be contracted, expanded and bent, so as to adapt to the structure of the periapical bone cavity, realize complete scraping and cleaning of the periapical lesion tissue, solve the problems of poor adaptability and blind area of the hand-held curettes, have high scraping efficiency and standardized operation, are safe and do not cause damage to bone tissue, have good cleaning effect and clear vision.

The invention relates to the technical field of medical experimental animal models, in particular to a construction method of an animal model for researching jaw cyst, which comprises the steps of experimental animal selection, surgical site preparation, bone windowing operation, cyst induction material implantation, wound suture, postoperative care and observation, and simulation of in-vivo development of jaw cyst by an implant. The invention provides a jaw cyst animal model which is high in modeling success rate, good in stability, highly similar to pathological characteristics of a bone cavity of a human jaw cyst and simple and convenient to operate, and a construction method of the jaw cyst animal model. A reliable experimental model is provided for pathogenesis research, pathological process discussion, drug research and development, treatment method evaluation and the like of the jaw cyst.

The present invention provides an intervertebral fusion prosthesis and an intervertebral fusion prosthesis assembly, wherein the intervertebral fusion prosthesis includes: an intervertebral fusion body, a bone graft cavity provided on the intervertebral fusion body, the bone graft cavity extending through the surface of the intervertebral fusion body to form a first opening in the intervertebral fusion body; and a first endplate movably disposed at the first opening, the first endplate having a first avoidance position that avoids the first opening and a first blocking position that covers the first opening. The technical solution of the present application effectively solves the problem of the risk of bone filling material in the bone graft cavity falling out in the related art.

A method of implant a knee prosthesis includes forming a bone void at an end of a bone, implanting a void filler in the bone void, and implanting a knee prosthesis onto the end of the bone so that a stem of the knee prosthesis is received by the void filler.

A prosthetic system (100) comprises a support structure (120) for use in implanting a component of an implant in the first bone of the subject. The support structure (e.g., a cone) has a first end surface (122), a second end surface (124), an exterior surface (126) extending from the first end surface to the second end surface, and an inner surface (128) defining a passageway extending from the first end surface to the second end surface. The exterior surface of the support structure is configured to be received in a cavity of the first bone such that the first end surface is flush with or beneath a surface of the first bone, and the exterior surface of the support structure is configured to be received in the cavity of the first bone such that a section of the exterior surface of the support structure contacts cortical bone (138) in the diaphyseal zone of the first bone.

The present invention belongs to the technical field of medical implant prostheses, specifically a cervical anterior intervertebral fusion device, comprising a fixing plate and a fusion device body, the fixing plate being mounted on the fusion device body, the area enclosed between the fusion device body and the fixing plate being a bone grafting cavity, and screws being mounted on the fixing plate; a fusion groove being provided on the fusion device body, and a shaped blocking net being mounted at the opening of the fusion groove; an injection hole being provided on the fixing plate, an adjusting rod being mounted in the injection hole, a movable plate being mounted on the adjusting rod, the movable plate being located in the bone grafting cavity, a fixing block being mounted in the injection hole, the fixing block being rotatably connected to the adjusting rod, and the adjusting rod being threadedly connected to the movable plate; the present invention has a simple structure, can increase the contact area and contact effect between the vertebral body edge and the fusion device, avoids increasing the size of the fusion device, facilitates the implantation of the fusion device during cervical spine surgery, and improves the fusion effect and fusion speed.

The utility model discloses an implantable lumbosacroiliac joint fixing screw, and relates to the technical field of medical instruments. In order to solve the problem that no special internal fixing device for recovering the stability of the pelvic posterior ring and the lumbar iliac area of a patient exists in the prior art, the following technical scheme is provided: the internal fixing device comprises a screw body and a joint locking piece movably connected to the screw body, and a first external thread is arranged at the front end of the screw body; a plurality of self-tapping grooves are formed in the outer end of the first external thread in the circumferential direction, a bone grafting cavity penetrating through the screw body is formed in the middle of the screw body, and the joint locking piece is arranged in the bone grafting cavity. The joint locking piece comprises a base, supporting rods and locking ends, the base is connected to the rear end of the bone grafting cavity, the supporting rods are symmetrically arranged on the base, and the locking ends are arranged at the tops of the supporting rods and extend towards the two ends of the supporting rods. The utility model has the advantages of small trauma, small intraoperative bleeding, short operation time, relatively simple operation, fast postoperative recovery and satisfactory biomechanical strength.

The invention belongs to the technical field of manipulators, and particularly relates to a high-integration integrated skeleton manipulator which comprises an integrated skeleton and a driving structure, phalanx parts of the integrated skeleton are phalanx cylinders and phalanx cavities, phalanx power structures of the driving structure are located in the integrated skeleton, the integrated skeleton is integrally formed, and the driving structure is located in the integrated skeleton. Phalanx cylinders for containing the phalanx power structures are arranged on the palm side of the integrated skeleton at equal intervals, driving holes allowing the phalanx power structures to penetrate through and clamped with positioning bearings are formed in the bottoms of the phalanx cylinders, and finger holes fixed to the first phalanx joints are formed in the tops of the phalanx cylinders. When the structure bears the same load, the deformation is small, the dynamic response is more accurate, and the power transmission efficiency and the operation stability of the manipulator are greatly improved.

The utility model discloses an insert type spine self-stabilization type fusion cage, which belongs to the technical field of fusion and comprises a fusion cage body, a bone grafting cavity is arranged on the fusion cage body, a mounting inlet is arranged on one side of the fusion cage body, and two groups of mounting outlets are arranged on one side of the fusion cage body opposite to the mounting inlet. A fixing clamp is mounted on the fusion cage body and penetrates through the mounting inlet and the mounting outlet; a mounting inlet is formed in the fusion cage body, a connecting groove and a threaded groove are formed in the two sides of the fusion cage body respectively, the connecting groove and the threaded groove are formed in the two sides of the mounting inlet respectively, and the fusion cage body is mounted through a holding device.

The expandable interbody fusion cage comprises an acetabular cup and a titanium cage, the interior of the acetabular cup is hollow, and the titanium cage is installed in the acetabular cup; the acetabular cup comprises a left shell and a right shell which are symmetrically arranged, the left shell and the right shell are respectively provided with a plurality of vertical columns which are vertically arranged, the front ends of the left shell and the right shell are respectively provided with an I-shaped frame, a certain gap is formed between the middle portions and the rear ends of the left shell and the right shell, and clamping sawteeth are arranged on the upper faces and the lower faces of the middle portions of the left shell and the right shell respectively. A flexible supporting column and a bridging column are installed in a gap between the left shell and the right shell, and the acetabular cup expands in the left-right direction through the I-shaped frame, the flexible supporting column and the bridging column. The front end of the titanium cage is conical, a limiting groove matched with the I-shaped frame is formed in the conical front end, a bone grafting cavity is formed in the middle of the titanium cage, the upper side and the lower side of the bone grafting cavity are open, and a plurality of hollow holes are formed in the cage wall of the titanium cage. The interbody fusion cage is reasonable in structure, stability and anti-settling performance can be improved, and therefore certain help and guidance are provided for clinic.

The utility model discloses an internal fixing nail positioning guider with an angle. The internal fixing nail positioning guider comprises a transverse holding handle, a protective sleeve, a turning guide sleeve, a flexible drilling device and a flexible driving device, the protective sleeve is fixed in the transverse holding handle; the turning guide sleeve is mounted at the front end of the protective sleeve, and an arc-shaped turning guide sleeve section is arranged at the front end of the turning guide sleeve; the flexible drilling device or the flexible driving device is arranged in the direction-changing guide sleeve from the rear end of the protective sleeve; a flexible rod is arranged between a drill bit and a drill rod of the flexible drilling device, and a flexible rod is arranged between a bone nail connector and a driving rod of the flexible driving device. The bone nail direction-changing guiding fixator is simple and practical in structure, and overcomes the defects that an existing linear bone nail guiding fixator cannot drill holes in a joint bone cavity in a direction-changing mode and cannot drive bone nails into the joint bone cavity in a direction-changing mode.

An implant system and method for accurate placement of an implant is disclosed. The method includes the step of performing a first temporary reaming (PP reaming) in the bone to obtain a cavity having a depth corresponding to achieving a maximum range of motion of a joint indicating soft tissue equilibrium. The method further includes establishing a bone reference marker (BRM) corresponding to a length of a handle of a test corresponding to the maximum range of motion of the joint, the length of the handle corresponding to the depth of the cavity; and performing a second scratch fit reaming (SS reaming) within the bone cavity relative to the diameter of the implant until a scratch fit of the implant is achieved.