21 results about "Bone chamber" patented technology

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 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.

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 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.

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.

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 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.

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.

The invention relates to the technical field of crushing equipment, in particular to bone crushing equipment for bone grafting operation suitable for spine surgery. A bone crushing cavity is formed in the bone crushing machine, a bone crushing block is slidably connected to the bottom of the bone crushing cavity, and bone crushing teeth are arranged on the bone crushing block in the moving direction of the bone crushing block and the side wall of the bone crushing cavity in an array mode; an eccentric power mechanism and a pulse mechanism are arranged in the bone crushing block, the eccentric power mechanism is used for driving the bone crushing block to reciprocate, and the pulse mechanism is used for generating pulse jet flow at the bottom of the bone crushing cavity based on movement of the bone crushing block; a filtering mechanism used for filtering bone particles is further arranged on the side wall of the bone crushing cavity, a preset distance is formed between the filtering mechanism and the bottom of the bone crushing cavity, and the filtering mechanism communicates with a collecting mechanism used for collecting the bone particles. According to the invention, autologous bones can be efficiently treated, and high-quality bone particles with uniform sizes can be prepared.

Modular endoprosthesis for at least partial replacement of a tubular bone, including, as module components, a stem for insertion into a bone cavity of the tubular bone, and an end piece including a support body with a neck part arranged on the medial aspect thereof. The module components being able to be coupled to each other and released from each other along a longitudinal axis of the shaft. The end piece has at least two different surface configurations on its support body, namely a closed surface (6′) on a medial aspect, and a porous configuration of the surface on the opposite, lateral aspect. The latter permits and positions the adhesion of muscle tissue, specifically without suturing. The muscle trauma caused by suturing, and the peak loads that occur at the respective suture points, can thus be avoided by virtue of the invention.

The invention discloses a visual universal bone lesion grinding device which comprises a handle, an insertion tube, a grinding unit and two sleeves, a whole lesion cavity and the whole grinding process are observed in real time and in all directions by integrating a panoramic camera consistent with the grinding main direction of a grinding drill at the end of the insertion tube, the traditional operation mode of blind vision or local view is changed, and the operation efficiency is improved. A doctor can clearly see lesion boundaries and grinding depth, thoroughness of lesion removal and operation safety are greatly improved, the two sleeves and a bone cavity form a closed water injection operation environment, grinding conditions are created, one sleeve is a water injection port, the other sleeve is a water drainage port, the two sleeves form a circulation channel, and therefore the grinding effect is improved. Chippings generated by polishing are discharged through flushing, the lens is prevented from being sealed or covered by the chippings in blood or flushing fluid, and the feasibility of the whole operation process is ensured through visualization.

The bone extractor comprises a bone extraction 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.

The invention discloses a split fusion cage compatible with direct decompression and end plate conformal bone grafting of an anterior spinal flexible robot. The split fusion cage comprises a first main body section, a second main body section and a third main body section, the first main body section is L-shaped and comprises a longitudinal supporting part and a transverse supporting part, and a first connecting part is arranged at the end, away from the longitudinal supporting part, of the transverse supporting part; the first main body section is provided with an inlet side parallel to the transverse supporting part and an outlet side parallel to the longitudinal supporting part, and the first main body section is used for enabling the flexible mechanical arm to enter and penetrate out of a spinal canal to extend into the spinal canal for direct pressure reduction operation; the second main body section is detachably connected to the first connecting part, and a U-shaped structure with a bone grafting cavity is defined by the second main body section and the first main body section; the third main body section is of a plate-shaped structure, and an O-shaped structure is defined by the third main body section, the second main body section and the first main body section. A split structure is adopted, an access channel and an operation space are provided for the flexible mechanical arm, direct pressure reduction operation is facilitated, in-vivo bone grafting can be carried out, and the adaptation of a bone grafting object and an end plate in shape is increased.

The utility model discloses a kind of bone rongeur with bone block function of bone surface antiskid zone, including the first jaw handle connected with first jaw edge and the second jaw handle connected with first jaw handle and connected with second jaw edge, first jaw edge and second jaw edge are respectively fixedly connected with first positioning member and second positioning member, which are same structure and oppositely arranged, first positioning member and second positioning member are respectively connected with oppositely arranged first cutter and second cutter, first jaw edge and second jaw edge form bone storage cavity, flexible baffle connected with first jaw edge and second jaw edge is equipped on both sides of bone storage cavity, and bone storage cavity front side is closed by first cutter and second cutter.The utility model can assist the positioning of bone rongeur before contacting bone and prevent slip in the process of biting bone, ensure the stability of bone rongeur in the process of biting bone, ensure the success of biting bone, can make the broken bone bitten into bone storage cavity, prevent the broken bone from splashing, the broken bone in bone storage cavity can be reused, ensure the effective use of high-quality bone.

This invention discloses a device for fixing and trimming autologous bone grafts for dental implants, belonging to the field of dental medical device technology. The device includes a first clamping arm and a second clamping arm; the first and second clamping arms are hinged together by fasteners to form a scissor-like lever structure; the first clamping arm includes a first gripping part and a first clamping section, the first clamping section being connected to a positioning frame; the second clamping arm includes a second gripping part and a second clamping section; the second clamping section is connected to a movable pressure plate; the positioning frame and the movable pressure plate are arranged opposite to each other and together enclose a bone placement cavity for accommodating and fixing the autologous bone graft. This invention adopts an integrated design, integrating four core functions—stable clamping, anti-slip fixation, precise cutting guidance, and pre-positioning of bone screw holes—into a single handheld instrument, achieving a "one-stop" precise, efficient, and stable preparation from bone graft to ready-to-use bone graft.