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54 results about "Lateral mass" patented technology
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Of these, one appears in each lateral mass about the seventh week of fetal life, and extends backward; at birth, these portions of bone are separated from one another behind by a narrow interval filled with cartilage. Between the third and fourth years they unite either directly or through the medium of a separate center developed in the cartilage.
Laminoplasty Plates, Systems, And Devices, And Methods Relating to the Same
ActiveUS20130060283A1Reduce and eliminate compressionReduce and eliminate and constrictionInternal osteosythesisJoint implantsSet screwLateral mass
Disclosed are laminoplasty devices and systems, kits that include such laminoplasty devices or systems or components thereof; and methods of assembling and using such laminoplasty devices and systems. In particular, articulating laminoplasty devices are provided that allow lamina plates to be adjusted angularly and transitionally with respect to a cage connecting the lamina plates. Also provided are laminoplasty plates that are configured so as to be assembled with a bone graft housing, and which provide an opening configured to facilitate bone graft insertion into the housing. Further provided are expandable laminoplasty fixation systems that include a lateral mass plate, a lamina plate and a set screw that when screwed and unscrewed, allows one to contract and expand the plates with respect to one another.
Owner:GLOBUS MEDICAL INC
Lateral mass fixation implant
InactiveUS20150342648A1Easy to insertInternal osteosythesisJoint implantsPosterior approachLess invasive
The various embodiments described herein provide lateral mass and facet fixation implants, which may be inserted and applied via a posterior approach, using minimally invasive or less invasive techniques. The embodiments described below generally include an intrafacet implant (or “facet implant”) and a lateral mass fixation member attached to or attachable to the facet implant. The lateral mass fixation member can include one or more tabs extending from a middle portion and configured to secure the lateral mass fixation member to lateral masses of adjacent vertebrae. The tabs may be flexible, semi-rigid, or rigid, and may be collapsible to facilitate insertion of the device. Methods for delivering the lateral mass and facet fixation implants are also described.
Owner:PROVIDENCE MEDICAL TECH
Method of lateral facet approach, decompression and fusion using screws and staples as well as arthroplasty
ActiveUS20100280555A1Good for long-term fixationImprove stabilitySuture equipmentsInternal osteosythesisPosterior approachFixation method
A method of performing vertebral facet fusion by lateral approach and related devices. The lateral approach to facet fusion involves identifying the lateral mass and introducing any of the fixation methods known or described herein laterally at one or more facets through the use of a Kirschner wire guide, a cannulated bone drill and cooperatively cannulated staple guide. A surgical bone staple have a perforated bridge is used across the lateral facet joint where fixation is required. Where fusion is desired, a bone screw have lateral perforations of the shank is inserted through the cannulated staple guide and bridge perforation at the joint to promote fusion. A staple cap and graft container for overlay grafting may be utilized for additional fusion. The method involves less surgical time, reduced blood loss and discomfort for the patient as compared to the posterior approach.
Owner:AFLATOON KAMRAN +1
Lateral mass fixation system
A device for accessing and guiding at least one fixation device to a spine may include a distal portion configured to fit in a facet of the spine and a proximal portion extending from the distal portion. The proximal portion may be detachable from the distal portion and may be hollow or solid. A system for accessing and guiding at least one fixation device to a spine may include a distal portion configured to fit in a facet of the spine, a proximal portion extending from the distal portion, and a slidable guide device for sliding over the facet guide device to guide at least one instrument to the spine.
Owner:PROVIDENCE MEDICAL TECH
Lateral mass fixation system
A device for accessing and guiding at least one fixation device to a spine may include a distal portion configured to fit in a facet of the spine and a proximal portion extending from the distal portion. The proximal portion may be detachable from the distal portion and may be hollow or solid. A system for accessing and guiding at least one fixation device to a spine may include a distal portion configured to fit in a facet of the spine, a proximal portion extending from the distal portion, and a slidable guide device for sliding over the facet guide device to guide at least one instrument to the spine.
Owner:PROVIDENCE MEDICAL TECH
Lining structure of large-scale pre-baking aluminium electrolysis trough
InactiveCN101037775AImprove thermal conductivityLow resistivityCalcium silicateAluminium electrolysis
The invention relates to an improvement of apparatus in aluminium electrolytic industry, specially relate to a large-sized lining structure for prebaking aluminium electrolysis. The inventive lining structure has, on the bottom of electrolytic cell housing, from the bottom up, in order, asbestos plate layer, heat-insulating layer made of calcium silicate plate with heat-resisting, heat-insulating layer made of both layers light-weight bricks, impermeable layer made of one layer alumina, impermeable layer made of both layers firebricks, half-graphite-rod-cathode complex TiB2 coating, with the leteral of allotypic lateral mass. The advantages of the invention are that: (1) the structure has higher heat conductivity, lower electrical resistivity and low dilatability of electrolytic sodium, and current distribution in cathodic charcoal is more uniform; (2) impermeable layer is especially advantageous for prolonging the life of electrolytic cell; (3) allotypic lateral mass has higher thermal conductivity and lower electrical resistivity, in particular, prolonging the the life of electrolytic cell. The large-sized lining structure for prebaking aluminium electrolysis of more than 200kA is used in the invention.
Owner:GUIZHOU BRANCH CHINA ALUMINUM IND
Method of lateral facet approach, decompression and fusion using screws and staples as well as arthroplasty
ActiveUS8986305B2Improve stabilityFixationSuture equipmentsInternal osteosythesisPosterior approachFixation method
A method of performing vertebral facet fusion by lateral approach and related devices. The lateral approach to facet fusion involves identifying the lateral mass and introducing any of the fixation methods known or described herein laterally at one or more facets through the use of a Kirschner wire guide, a cannulated bone drill and cooperatively cannulated staple guide. A surgical bone staple have a perforated bridge is used across the lateral facet joint where fixation is required. Where fusion is desired, a bone screw have lateral perforations of the shank is inserted through the cannulated staple guide and bridge perforation at the joint to promote fusion. A staple cap and graft container for overlay grafting may be utilized for additional fusion. The method involves less surgical time, reduced blood loss and discomfort for the patient as compared to the posterior approach.
Owner:AFLATOON KAMRAN +1
Universal omni-posterior-double lateral mass bridging board for cervical vertebra
InactiveCN102247207AImprove stabilityReach physiologicalInternal osteosythesisBone platesBiomechanicsLateral mass
The invention discloses a universal omni-posterior-double lateral mass bridging board for cervical vertebra. The bridging board is in an arched whole made of a narrow and long metal plate, and comprises two lateral mass fixing plates, two vertebral lamina fixing plates, a spinous platform fixing plate and a bone grafting fixing plate. The bridging board is mainly used for reconstructing a vertebral canal structure after posterior expansive laminoplasty of cervical spine, can simultaneously fulfill fixation of open door side and hinge side in the expansive laminoplasty, the length of each fixing plate and angles among the fixing plates are in accordance with the characteristics of human cervical vertebra dissection; the bridging board has strong biological attachment and can furthest resist posterior pressure, so that the expansive laminoplasty failure caused by crack reclosing at the vertebral open door side and hinge fracture is avoided; the whole structure adapts to the posterior anatomy structure of human cervical vertebra and the characteristics of biological mechanics; and the bridging board can be pre-bent properly in use. The universal omni-posterior-double lateral mass bridging board for cervical vertebra is expected to replace the conventional posterior cervical single open door fixing plate to become a clinical standard postoperative physiology and stability reconstructing method after the posterior cervical single open door expansive laminoplasty.
Owner:FOURTH MILITARY MEDICAL UNIVERSITY
Bone fracture plate formed by a vertebral plate
InactiveCN101584601APromote reconstructionEnough bone graftInternal osteosythesisBone platesBone graftingLateral mass
A bone fracture plate formed by a vertebral plate comprises a reticular frame for holding a bone grafting material. The reticular frame comprises a bottom surface facing to the inner cavity of a vertebral canal, an upper side face and a lower side face. The top surface of the reticular frame is used for implanting and tamping the opening of the bone grafting material. The inner side face of the reticular frame is provided with an inner opening used for the connection of the broken ends of the vertebral plate and the bone grafting material inside the reticular frame. The outer side face of the reticular frame is provided with an outer opening used for the connection of the broken ends of a lateral mass of a cervical vertebra and the bone grafting material inside the reticular frame. The inner side on the top surface of the reticular frame is provided with a first mounting plate fixedly connected with the broken ends of the vertebral plate and the outer side on the top surface of the reticular frame is provided with a second mounting plate fixedly connected with the broken ends of the lateral mass. The invention has the advantages that the invention is capable of effectively and adequately grafting bone, preventing grafted bone piece from falling into the vertebral canal after surgery, and also preventing a callus from proliferating and protruding towards the vertebral canal.
Owner:陈哲
Method of lateral facet approach, decompression and fusion using screws and staples as well as arthroplasty
ActiveUS8894651B2Improve stabilityCheap manufacturingSuture equipmentsInternal osteosythesisPosterior approachLateral mass
A method of performing vertebral facet fusion by lateral approach and related devices. The lateral approach to facet fusion involves identifying the lateral mass and then introducing any of the fixation methods known or described herein laterally at one or more facets through the use of a hollow cannula. A surgical bone staple have a perforated bridge is used across the lateral facet joint where fixation is required. Where fusion is desired, a bone screw have lateral perforations of the shank is inserted through the bridge perforation at the joint to promote fusion. The staple and screw may be used in conjunction with one another or individually. The facet joint may be distracted prior to fixation to increase the foraminal space and decompress the neural structures to relieve pain. The method involves less surgical time, reduced blood loss and discomfort for the patient as compared to the posterior approach.
Owner:AFLATOON KAMRAN
Direct measurement of sorption on three-dimensional surfaces such as resins, membranes or other preformed materials using lateral dispersion to estimate rapid sorption kinetics or high binding capacities
InactiveUS20060223053A1Accurately and directly characterizeEfficient preparationMaterial nanotechnologyBioreactor/fermenter combinationsSolid spherePorous medium
Described are methods allowing measurement of adsorption and desorption of analytes with membranes or resins directly using surface plasmon resonance (SPR). Also described are methods for assembling intact resins or membranes on SPR surfaces. Such methods provide estimates of mass-action ion-exchange adsorption and desorption rates accounting for steric (σ) and characteristic charge (ν) effects. The methods further permit accurate estimation of rate constants for uniform adsorption of a homogeneous analyte solution on homogeneous adsorptive sites distributed heterogeneously in space, relative to the planar boundary. Solutions are obtained for locally porous media and solid spheres. The methods are extendible to other media and heterogeneous adsorptive sites. The methods further provide for enhancement of lateral mass transport in such optical measurement instruments through radial hydrodynamic diffusion (radial dispersion) by, for example, incorporating porous media in flow cells of detection devices such as, but not limited to, SPR or TIRF instruments.
Owner:UNIV OF UTAH RES FOUND
System and method for spinal fusion
A system for spinal fusion according to exemplary aspects involves a first screw and a second screw to be inserted into a lateral mass, wherein one of the first screw and the second screw comprises a rod configured to form a pivot joint with a tulip of one of the screws. A tulip of the first screw and a tulip of the second screw each comprise at least one slot configured to mate with the rod to thereby connect the first screw and the second screw. A method of exemplary aspects involves implanting a first screw and a second screw and connecting the screw by lowering a rod of one of the screws into a tulip of the other screw.
Owner:YUE JAMES J
System and method for spinal fusion
A system for spinal fusion according to exemplary aspects involves a first screw and a second screw to be inserted into a lateral mass, wherein one of the first screw and the second screw comprises a rod configured to form a pivot joint with a tulip of one of the screws. A tulip of the first screw and a tulip of the second screw each comprise at least one slot configured to mate with the rod to thereby connect the first screw and the second screw. A method of exemplary aspects involves implanting a first screw and a second screw and connecting the screw by lowering a rod of one of the screws into a tulip of the other screw.
Owner:YUE JAMES J
Vertebral plate reinforcing device
PendingCN106901819AOvercoming the problem of decreased pull-out forceStrong "cantilever arm" effectInternal osteosythesisJackscrewCervical vertebral body
The invention discloses a vertebral plate reinforcing device used for being matched with an axis arch screw or inferior cervical vertebrae lateral mass screw for use. The vertebral plate reinforcing device comprises a coupling nut, a jackscrew component, a universal arm and arm locking screws, wherein the coupling nut is used for being combined with a screw base, a longitudinal rod is arranged between the coupling nut and the screw base, the jackscrew component is located above the coupling nut, and the jackscrew component and the coupling nut are movably arranged; the universal arm is provided with a near arm end, a far arm end and an arm connecting portion, a long kidney-shaped hole is formed in the near arm end and formed in the mode of surrounding the outer side of the rod portion of the jackscrew component, two arm locking holes are formed in the far arm end, and the arm locking screws are matched with the arm locking holes so as to fixedly connect the universal arm and a cervical vertebral plate. The vertebral plate reinforcing device has the advantage that the four components are linked to axis (or inferior cervical vertebrae) pedicle screw (or lateral mass screw) screws, and the axis (or inferior cervical vertebrae) pedicle screw (or lateral mass screw) has higher pullout force.
Owner:倪斌 +1
Melt-blown spunlaced composite non-woven base fabric
InactiveCN108442034AGood lookingLess surface fluffSpinning head liquid feederArtificial thread manufacturing machinesFiberLateral mass
The invention relates to an antibacterial healthcare spunlaced fabric, in particular to a preparation method of a melt-blown spunlaced composite non-woven base fabric. The raw material is polypropylene (PP) slices (Yueyang, Hunan), and the melt index is 320-1600 g / min; the product weight is 10-100 g / m<2>, and the lateral mass per unit area CV value is smaller than 5%. The melt-blown spunlaced composite non-woven base fabric is prepared from the raw material through a method including the steps that firstly, a melt-blown fiber web is processed with the polypropylene slices; secondly, the melt-blown fiber web is reinforced through a spunlace machine to form the melt-blown spunlaced composite non-woven base fabric. The developed melt-blown spunlaced composite non-woven base fabric has variousunique functions and is well received by people; for example, gauze made of polypropylene has the advantages of not adhering to wounds and having no toxicity, and thus the melt-blown spunlaced composite non-woven base fabric developed with polypropylene can be widely used in the medical treatment cause.
Owner:ZHONGYUAN ENGINEERING COLLEGE
Apparatus and methods for increasing lateral mass transfer over molecule sensors
InactiveUS20070202609A1Accurately and directly characterizeEfficient preparationMaterial nanotechnologyBioreactor/fermenter combinationsFiberFlow cell
Described are apparatus and methods allowing measurement of adsorption and desorption of analytes with membranes or resins directly using increased lateral mass transport. Such increased lateral mass transport may be accomplished through the incorporation of a porous media, such as a fibrous bed or a concentrated bed of spheres, into said flow cell. Further described is a method of determining if a flow cell would benefit from increased lateral mass transport comprising comparing the rate of surface reaction to the mass transfer coefficient for a given analyte. The detection method for the measurement of adsorption and desorption of analytes may be based on the evanescent wave phenomenon at total internal reflection, such as surface plasmon resonance (SPR), critical angle refractometry, total internal reflection fluorescence (TIRF), total internal reflection phosphorescence, total internal reflection light scattering, optical waveguide fluorescence, evanescent wave. ellipsometry, nuclear magnetic resonance (NMR) spectroscopy, quartz crystal microbalance / dissipation, calorimetry, ellipsometry, and voltammetry.
Owner:UNIV OF UTAH RES FOUND
Anterior atlantoaxial stabilization by lateral mass screw fixation
Owner:VANNEMREDDY PRASAD
Anterior Atlantoaxial Stabilization by Lateral Mass Screw Fixation
Owner:VANNEMREDDY PRASAD
Transoral anterior atlantoaxial lateral mass embolia fusion cage system and using method thereof
ActiveCN109771106AImprove stabilityAvoid displacementSpinal implantsOsteosynthesis devicesAtlantoaxial dislocationEngineering
The invention discloses a transoral anterior atlantoaxial lateral mass embolia fusion cage system and a using method thereof. The system comprises a fusion fixing device, a holding restorer and lifting-pulling restoring pincers; a first connecting part is arranged on the fusion fixing device, a second connecting part is arranged on the holding restorer, the fusion fixing device is connected with the holding restorer through the first connecting part and the second connecting part, the lifting-pulling restoring pincers at least comprise a first conduction part and a second conduction part, andthe holding restorer is located between the first conduction part and the second conduction part. The system is used for an atlantoaxial dislocation and basilar invagination operation; meanwhile, whenthe system is in use, the atlantoaxial anterior release restoring and fusion interior fixation operation can be ideally completed simply through one operation incision.
Owner:杨进城
Atlantoaxial dislocation reduction and internal fixation device
ActiveCN104490459AImprove connection stabilityAvoid harmInternal osteosythesisOperative woundAtlantoaxial dislocation
The invention discloses an atlantoaxial dislocation reduction and internal fixation device, belongs to the field of medical instruments and aims at solving the problems of large risk, high difficulty and heavy wound of atlantoaxial dislocation treatment by use of the existing atlantoaxial internal fixation technology. The atlantoaxial dislocation reduction and internal fixation device comprises a connecting rod, lateral mass screws and vertebral plate occlusion nails; the connecting rod is U-shaped; the lateral mass screws are arranged on the two sides of the connecting rod, respectively to form a fixed support; two vertebral plate occlusion nails are mounted on the connecting rod by use of fastening screws, respectively; each vertebral plate occlusion nail comprises occlusion tweezers and a lifting sleeve; one end of the occlusion tweezers is hooked on an atlantoaxial back arch, while the other end of the occlusion tweezers is connected with the lifting sleeve; the other end of the lifting sleeve is provided with a U-shaped opening in which a spring is arranged; the connecting rod is located above the spring in the U-shaped opening and fixed by use of the fastening screw. The atlantoaxial dislocation reduction and internal fixation device is used for performing lifting reduction and fixation on the atlantoaxial back arch by tightening the fastening screws without skull traction, and is simple and safe to operate; only a minimal operative wound is formed.
Owner:WEST CHINA HOSPITAL SICHUAN UNIV
Laminoplasty plates, systems, and devices, and methods relating to the same
ActiveUS10226284B2Reduce and eliminate compressionReduce and eliminate and constrictionInternal osteosythesisBone platesEngineeringLateral mass
Disclosed are laminoplasty devices and systems, kits that include such laminoplasty devices or systems or components thereof; and methods of assembling and using such laminoplasty devices and systems. In particular, articulating laminoplasty devices are provided that allow lamina plates to be adjusted angularly and transitionally with respect to a cage connecting the lamina plates. Also provided are laminoplasty plates that are configured so as to be assembled with a bone graft housing, and which provide an opening configured to facilitate bone graft insertion into the housing. Further provided are expandable laminoplasty fixation systems that include a lateral mass plate, a lamina plate and a set screw that when screwed and unscrewed, allows one to contract and expand the plates with respect to one another.
Owner:GLOBUS MEDICAL INC
Facet joint prosthesis
Owner:KINETIC SPINE TECH INC
Atlantoaxial lateral mass joint fusion cage
InactiveCN103142331AHigh mechanical strengthFully filledInternal osteosythesisSpinal implantsAtlantoaxial dislocationIntervertebral spaces
The invention discloses an atlantoaxial lateral mass joint fusion cage which comprises a main body, a front development needle and a rear development needle, wherein the main body comprises a rectangular front wall and a circular arc wall, and two parallel opposite sides of the rectangular front wall are connected respectively with two lateral sides of the circular arc wall; the outer surface of the front wall is an indented plane, the inner surface of the front wall is an inward bulging plane, and a threaded through-hole is formed in the front wall; the front development needle is located on the left side of the front wall, is exposed on the surface, and runs through the main body longitudinally; and the rear development needle is located in the center of the circular arc wall, is exposed on the surface, and runs through the main body transversely. The atlantoaxial lateral mass joint fusion cage is used for implanting an atlantoaxial lateral mass joint space, and has the functions of supporting a normal height of the joint space, maintaining a normal physiological axis, embosoming filling and implantation of a bone graft, stabilizing the joint, and promoting lateral mass joint fusion; the technical problem that when fixing fusion is required caused by atlantoaxial dislocation or instability, the prior art cannot control the intervertebral space height, the physiological axis and the stability effectively is solved; and the fixed bone graft fusion is more normalized, and the effect is better.
Owner:广州聚生生物科技有限公司
Minimally intrusive cervicothoracic laminoplasty system
InactiveUS20210059655A1Relieve stenosisWell formedInternal osteosythesisDiagnosticsEngineeringLateral mass
A special stabilizing anchor is disclosed which is secured to the spinous process, in addition to anchors which are stabilized against the lateral masses. These anchors couple with the spinous process anchor and upon coupling, the connecting stabilizing element is configured such that this element can be actuated, elevating the spinolaminar arch and thus expanding the canal, relieving the stenosis and completing the surgical procedure. A unique aspect of this system is that the lateral mass anchors of different levels can be secured to each other, stabilizing one or more target motion segments. Augmenting this is a system for identifying and extirpating the facet joints and replacing them with graft material to encourage a posterior / facet fusion.
Owner:BOEHM JR FRANK H
Atlantoaxial lateral mass joint fusion appliance
PendingCN110755182AAvoid damageSimple and fast operationSpinal implants3D printingJoint fusionCurative effect
The invention discloses an atlantoaxial lateral mass joint fusion appliance. The atlantoaxial lateral mass joint fusion appliance comprises a first structure of which the temperature is 20 DEG C or above and a second structure of which the temperature is 0-8 DEG C, wherein the second structure is formed by the compressing of the first structure in the same direction; when the temperature is raisedto 20 DEG C or above under the second structural state, the second structure can be restored to the first structure; and the outside outline of the first structure and the outside outline of the second structure adopt a polyhedron-shaped structure or a curved surface body-shaped structure. The atlantoaxial lateral mass joint fusion appliance disclosed by the invention is transplanted from the rear part of an atlantoaxial lateral mass joint, and during transplanting, large operation space is not needed, so that the operation is simple and convenient, damage to joints and surrounding structuresis low, the resetting effect is good, and the surgery curative effects can be notably improved.
Owner:GENERAL HOSPITAL OF PLA
Lateral mass fixation system
A device for accessing and guiding at least one fixation device to a spine may include a distal portion configured to fit in a facet of the spine and a proximal portion extending from the distal portion. The proximal portion may be detachable from the distal portion and may be hollow or solid. A system for accessing and guiding at least one fixation device to a spine may include a distal portion configured to fit in a facet of the spine, a proximal portion extending from the distal portion, and a slidable guide device for sliding over the facet guide device to guide at least one instrument to the spine.
Owner:PROVIDENCE MEDICAL TECHNOLOGY INC
Lateral mass fixation implant
The various embodiments described herein provide lateral mass and facet fixation implants, which may be inserted and applied via a posterior approach, using minimally invasive or less invasive techniques. The embodiments described below generally include an intrafacet implant (or “facet implant”) and a lateral mass fixation member attached to or attachable to the facet implant. The lateral mass fixation member can include one or more tabs extending from a middle portion and configured to secure the lateral mass fixation member to lateral masses of adjacent vertebrae. The tabs may be flexible, semi-rigid, or rigid, and may be collapsible to facilitate insertion of the device. Methods for delivering the lateral mass and facet fixation implants are also described.
Owner:PROVIDENCE MEDICAL TECHNOLOGY INC
Bone fracture plate formed by a vertebral plate
InactiveCN101584601BPromote reconstructionEnough bone graftInternal osteosythesisBone platesLateral massBone grafting
A bone fracture plate formed by a vertebral plate comprises a reticular frame for holding a bone grafting material. The reticular frame comprises a bottom surface facing to the inner cavity of a vertebral canal, an upper side face and a lower side face. The top surface of the reticular frame is used for implanting and tamping the opening of the bone grafting material. The inner side face of the reticular frame is provided with an inner opening used for the connection of the broken ends of the vertebral plate and the bone grafting material inside the reticular frame. The outer side face of thereticular frame is provided with an outer opening used for the connection of the broken ends of a lateral mass of a cervical vertebra and the bone grafting material inside the reticular frame. The inner side on the top surface of the reticular frame is provided with a first mounting plate fixedly connected with the broken ends of the vertebral plate and the outer side on the top surface of the reticular frame is provided with a second mounting plate fixedly connected with the broken ends of the lateral mass. The invention has the advantages that the invention is capable of effectively and adequately grafting bone, preventing grafted bone piece from falling into the vertebral canal after surgery, and also preventing a callus from proliferating and protruding towards the vertebral canal.
Owner:陈哲
A simple forging wheel frame of a transporting truck
InactiveCN108995696ASimple structureSimple production processSledge wheelsHand cart accessoriesInvestment castingEngineering
The invention discloses a simple forging wheel frame of a conveyor, a wheel frame (1) for short, which comprises a front side block (2), a rear side block (3) and a connecting rod (9). The rear side block adopted by the invention is provided with a left upper shaft hole, a left lower shaft hole, a right shaft hole, a connecting groove and a wedge-shaped projection. The shape and structure of the anterior lateral mass correspond to the mirror image of the posterior lateral mass. The connecting rod is a steel member with cylindrical rod shape; The connecting grooves of the front side block and the rear side block are opposite to each other, the front and rear ends of the connecting rods are inserted and welded into the connecting grooves of the front side block and the rear side block respectively, and the front side block, the rear side block and the connecting rods are connected as a whole; As that front side block and the back side block can be for by die forging, the device can be for by forging, welding and cutting, thereby avoiding the technical scheme of the investment casting process malpractice, and achieving the purposes of reducing the working intensity, improving the efficiency, reducing the cost and meeting the environmental protection requirements of the wheel frame production of the conveying truck.
Owner:宁波华希机械设备有限公司
Internal fixation device for atlantoaxial dislocation reduction
ActiveCN104490459BSimple and safe operationReduce surgical traumaInternal osteosythesisAtlantoaxial dislocationOperative wound
Owner:WEST CHINA HOSPITAL SICHUAN UNIV