85 results about "Cervical intervertebral disc" patented technology

The invention discloses an image navigation-based parallel robot-assisted artificial cervical intervertebral disc replacement surgery positioning method, which belongs to application of a parallel robot in the field of surgical operation and is used for making sure that the pose relation between a practical surgery abrasive drilling and a patient is consistent with the pose relation between a virtual abrasive drilling and a patient model determined by a doctor in a virtual environment. According to technical key points, the method comprises the following steps of: performing three-dimensional reestablishment on a CT (Computerized Tomography) image by using a VTK (Visualization Tool Kit) software package to obtain a three-dimensional model of the silk cervical vertebra of a patient; introducing the virtual abrasive drilling into an image space and making the doctor complete virtual positioning on a computer; establishing a position and pose mapping relation among the image, the patient and the robot by using an optical positioning system and an ICP (Iterative Closest Point) algorithm; and controlling the parallel robot to move to finally complete positioning of the abrasive drilling of the parallel robot and the patient.

The invention relates to a six-degree-of-freedom cervical-vertebra grinding parallel robot which relates to a grinding parallel robot. The invention aims to solve the problems of insufficient precision, overmuch radiation and large doctor working strength of a traditional manual cervical intervertebral-disc replacement operation. A fixed platform and a movable platform are connected through three pairs of branched chains, a spherical hinge mechanism is arranged at the upper end of a ball-screw linear driving mechanism, a hooker hinge mechanism is arranged at the lower end of the ball-screw linear driving mechanism, the spherical hinge mechanism is connected with the movable platform, the hooker hinge mechanism is connected with the fixed platform, an abrasive-drilling motor penetrates the movable platform, the abrasive-drilling motor is fixedly connected with an abrasive-drilling motor connecting body, the abrasive-drilling motor connecting body is fixedly connected with the movable platform, an abrasive-drilling body is fixedly installed on the abrasive-drilling motor connecting body, an abrasive-drilling jackscrew hole is arranged on the abrasive-drilling body, an abrasive-drilling jackscrew hole cover is installed on the abrasive-drilling jackscrew hole, an abrasive-drilling shaft is connected with the abrasive-drilling motor through a shaft coupler, and a cutting head is connected with the abrasive-drilling shaft through a tightening nut. The invention is applicable to the grinding of cervical vertebra.

The invention discloses an anterior cervical interbody fusion cage which comprises a main body and a development needle arranged on the main body, wherein the main body is a hollow tetrahedron; the cross section of the hollow periphery of the tetrahedron is ladder-shaped; the cross section of the hollow inner circumference of the tetrahedron is square or rectangular; the main body comprises a front wall, a rear wall, a left side wall and a right side wall; and the front wall is connected with the rear wall through the left side wall and the right side wall. The shape of the main body confirms to the anatomic form of the cervical intervertebral disc of a normal human body; while the safe implantation is ensured, the main body can be in tight contact with end plates of an upper cervical vertebral body and a lower cervical vertebral body under the compression state to create a good condition for bone fusion; and the cross section of the hollow inner circumference of the main body is square or rectangular, so that the contact surface of the main body and the end plates of the cervical vertebral bodies is increased to the greatest extent, the bone implementation amount is increased, and the fusion is speeded up.

The invention provides a device for preventing and treating lumbar and cervical disc herniation. The device structurally comprises a seat, a cervical positioning plate, a lumbar correction airbag, a cervical correction airbag, Chinese herb hot compress pads, a lumbar correction airbag adhering positioning strap, a cervical correction airbag adhering positioning strap, a mandible adhering strap positioning strap, mandible adhering straps, two chest adhering straps and two waist adhering straps, wherein the cervical positioning plate is arranged on the top of a backrest of the seat vertically, the lumbar correction airbag adhering positioning strap is arranged the backrest of the seat, the cervical airbag adhering positioning strap is arranged in the front of the cervical positioning plate, the mandible adhering strap positioning strap is arranged on the back of the cervical positioning plate, the back of the cervical correction airbag is adhered with the cervical correction airbag adhering positioning strap, two ends of the two chest adhering straps are arranged on two sides of the upper portion of the backrest of the seat, two ends of the waist adhering straps are arranged on two sides of the lower portion of the seat, the lumbar correction airbag and the cervical correction airbag are respectively connected with bag ball type inflator pumps through inflation tubes, and an air release valve is arranged on each inflation tube.

The invention discloses a traditional Chinese medicine for treating lumber or cervical intervertebral disc herniation, which is invented for solving the poor effect problem, etc., in the prior art. The traditional Chinese medicine comprises the raw ingredients as follows: panax notoginseng is 6g, eucommia bark is 6g, frankincense (through broiling) is 6g, myrrh (through broiling) is 6g, pangolin (through preparing) is 6g, Rhizoma Homalomenae is 6g, rhizoma drynariae is 6g, blood of dragon is 6g, trogopterus dung is 6g, bitter orange (through stir-frying) is 6g, Japanese teasel is 6g, safflower is 6g, and musk is 0.5 to 1g. The traditional Chinese medicine has very strong effect for activating the hemopoietic function of bone marrow at the fracture site, promotes the blood circulation of waist and buttocks to strengthen the tensility, and ensures that the frequency of blood exchange is accelerated, and the organism can generate benign reaction. The excrescence is expanded and softened to facilitate the excrescence to be absorbed gradually, so as to lead the blood circulation of nerve and other soft tissues to become unimpeded and lead the bone callus at the fracture site to grow and recover rapidly, so that the healing time is shortened, and the infection is avoided.

The invention relates to an artificial intelligence cervical intervertebral disc capable of recording pressure and exercise. The artificial intelligence cervical intervertebral disc comprises an upperplate, a supporting body, a lower plate, at least one pressure sensor, angle displacement sensors, wireless communication modules and miniature batteries, the supporting body and the lower plate canrelatively move, the supporting body is made of a high polymer material and is internally provided with the pressure sensor, the wireless communication modules and the miniature batteries, and the upper plate and the lower plate are both internally provided with the angle sensors, the wireless communication modules and the miniature batteries. The supporting body can be separately replaced throughminimally invasive surgery, and a bone lamella healing interface is prevented from being damaged again; the supporting body can sense pressure change and pressure position distribution in real time through the pressure sensor, the angle sensors can independently record angle change parameters in a three-dimensional space in real time, the function and state of a prosthesis can be monitored noninvasively and unremittingly in real time, and therefore near-term and middle-long-term risks of a patient after the cervical vertebra artificial cervical disc replacement are evaluated in detail to guide rehabilitation training.

The invention provides an artificial cervical intervertebral disc with an ultrahigh activity type chamfering U-shaped structure. The artificial cervical intervertebral disc comprises an artificial cervical intervertebral disc body which is prepared from titanium alloy. The artificial cervical intervertebral disc is characterized in that the part in which an upper end plate and the lower end plate of the artificial cervical intervertebral disc body is of a chamfering reversed U-shaped noncontact elastic structure; the physiological curvature of the upper end plate and the lower end plate protruding towards of the artificial cervical intervertebral disc body is 3 to 6 degrees; the front ends of the upper end plate and the lower end plate are fixed through bolts; the front edges of the upper end plate and the lower end plate have arc-shaped appearances similar to human vertebration; two rows of reversed teeth for stopping backing are respectively arranged in the outer surfaces of the upper end plate and the lower end plate; the elasticity modulus of the artificial cervical intervertebral disc body is 45 to 80GPa, and the yield strength is more than 620MPa. The artificial cervical intervertebral disc meets the requirements on long service life and fatigue resistance; the mobility of operated sections of a patient can be 80 to 100% of that of normal human body.

The invention relates to an integrated artificial cervical intervertebral disc false body with high mobility. The body is of an Omega -shaped non-contact elastic structure with an upper end plate and a lower end plate integrated. The body is made of a titanium alloy with elasticity modulus being 55-90 Gpa and yield strength equal to or larger than 600MPa. Herringbone two-way retreating-stopping inverting teeth or rhombic two-way retreating-stopping inverting teeth are symmetrically arranged on the outer surfaces of the upper end plate and the lower end plate of the body respectively. The lower end plate of the body is 10-16mm in length, the upper end plate is 1mm shorter than the lower end plate, the distance between the upper end plate and the lower end plate is 2-3.5mm, the total height of the body is 5-8mm, and the thickness of the bending section at the rear end of the body is 0.5-0.9mm. The integrated artificial cervical intervertebral disc false body can meet the requirements for long service life and fatigue resistance, greatly improves the mobility of lesion bone sections of patients and is scientific and reasonable in achieving methods, remarkable in effects, obvious in advantages and favorable for improving health level of people.

The present invention relates to a Chinese medicine composition with the functions of promoting blood circulation, stopping pain, freeing channels and strengthening sinew and bone for curing various osteopathies fracture, necrosis of femoral head, protrusion of cervical intervertebral disc, prolapse of lumbar intervertebral disc, hyperosteogeny and traumatic injury, etc. Said Chinese medicine is made up by using (by weight portion) 30-50 portions of myrrh, 30-50 portions of frankincense, 60-100 portions of pyrite, 23-40 portions of earthworm, 20-30 portions of wingless cockroach and 20-30 portions of notoginseng.

A memory alloy artificial cervical intervertebral disc comprises an artificial intervertebral disc body and a support plate sleeved with the artificial intervertebral disc body, wherein the artificial intervertebral disc body has conicity; drop preventing reverse stings are distributed on the upper and lower surfaces of the artificial intervertebral disc body; fixed branches are arranged at the two sides of the upper and lower surfaces; and drop preventing pawls are respectively arranged at the two ends at the inner side of each fixed branch. The intervertebral disc has simple process and shape, is easy to deform and insert, is stable in installation after complex, is convenient to use in operation, is secure and reliable in fixation, maintains the cervical vertebra motion range, reduces adjacent vertebral body complications, not only shortens the operation time and simplifies the operation, but also dispenses with bone removal and grafting, reduces more pains of the patient, maintains or increases the motion range of the vertebral articulations with lesions to some extent, avoids load of the adjacent vertebral articulations from increasing after fusion and fixation of the vertebral articulations with lesions, slows down degeneration of the adjacent vertebral articulations and realizes the aims of maintaining the movement functions and delaying and reducing secondary degeneration of the adjacent segments.

The invention relates to an Omega-shaped artificial cervical intervertebral disc implant with diamond-shaped bilateral stopping pawls. The Omega-shaped artificial cervical intervertebral disc implant comprises a body and is characterized in that the body adopts an Omega-shaped non-contacting elastic structure of which an upper end plate and a lower end plate are integrated; diamond-shaped bilateral stopping pawls are symmetrically arranged on the outer surfaces of the upper end plate and the lower end plate of the body respectively; the lower end plate of the body is 10 to 16 mm in length, and the upper end plate is 1 mm shorter than the lower end plate; the distance between the upper end plate and the lower end plate of the body is 2 to 3.5 mm; and the thickness of a bending section at the rear end of the body is 0.6 to 1.2 mm. After the implant provided by the invention is implanted, the space is stable, an elastic force is used for supporting and no bolt is required for fixing, so that direct friction or abrasion between the upper end plate and the lower end plate is avoided fundamentally, and the performance requirements for long service life and fatigue resistance of the implant can be met. The invention achieves the purpose that the range of motion of forward bending and the range of motion of sideward bending of the cervical vertebrae segment of a patient receiving an operation can reach 30% to 60% of that of normal cervical vertebrae, and the range of motion of backward extending can reach 70% to 90% of that of normal cervical vertebrae.

The invention discloses a neck pillow; the neck pillow is integrally in the shape of m and made of hard material; the middle part of the neck pillow is a smooth curve face with symmetrical front and back parts; the longitudinal radians of front and back curve faces of the smooth curve face respectively simulate a physiological curvature of the cervical vertebra of a human body; a cross radian simulates the cross radian of the shape of a neck of the human body. According to the invention, the curve radian of the m shaped pillow is applied to simulate the physiological curvature of the cervical vertebra of the human body; by using mutual effect of the upwards hoisting force of the vertical curve face at the surface of a pillow and the gravity of a patient's head, the neck part of the human body is stressed by frontwards and upwards bidirectional tractions; after using for 15 minutes before sleeping and further repairing by an ordinary pillow in sleeping, the straightening and even inverse pathological state of the cervical vertebra can be corrected, and the normal physiological status of the front convex of the cervical vertebra is recovered, the neck pillow can return bulged cervical intervertebral disc, improve circulation and release cervical vertebra regression.

The invention relates to an artificial cervical intervertebral disc, which comprises an upper bottom plate, a lower bottom plate and a nucleus pulposus arranged between the upper bottom plate and the lower bottom plate, wherein the nucleus pulposus consists of an upper nucleus pulposus and a lower nucleus pulposus; the upper nucleus pulposus is provided with a convex cylinder; the lower nucleus pulposus is used for allowing an arc-shaped dovetail groove to be nested with the convex cylinder; the upper nucleus pulposus and the lower nucleus pulposus are mutually buckled; the upper bottom plate and the upper nucleus pulposus are cooperated and rotate around a coronal axis so as to simulate the fore flexion and back extension function of the cervical intervertebral disc; the upper bottom plate and the upper nucleus pulposus are permitted to generate front and back relative micro translation; the upper nucleus pulposus and the lower nucleus pulposus are cooperated, can rotate around the rotation axis of the self convex cylinder of the upper nucleus pulposus and also can perform revolution around the rotary track of the arc-shaped dovetail groove of the lower nucleus pulposus; the lower nucleus pulposus and the lower bottom plate are cooperated, and rotate around a sagittal axis to bear motor functions of left and right lateral curvature; and the lower bottom plate and the lower nucleus pulposus are permitted to generate left and right relative micro translation. According to the cervical intervertebral disc prosthesis disclosed by the invention, different construction members of the cervical intervertebral disc prosthesis are permitted to mutually move, and a rotation center in the moving process is coincident with the rotation center of cervical spine segmental physiological movement, so that the natural physiological state of the cervical vertebra can be furthest restored.

The invention discloses a method for preparing a cervical intervertebral disc of a human body by adopting a 3D printing technology. The method comprises the following steps that firstly, a two-dimensional tomography image of a related part of the human body is acquired through a medical imaging technology, tomography data are converted into a universal data input format for a rapid prototyping system, finite element analysis is carried out, and data meeting a three-dimensional printing requirement are generated by continuously improving a model; pPrinting results of different process parameters are simulated through software, and a good process parameter combination is obtained; a raw material to be subjected to 3D printing is prepared, and titanium alloy Ti-6Al-4V powder is adopted; then,a base material is printed by using a selective laser sintering type 3D printer; and finally, a workpiece is subjected to mechanical treatment, including linear cutting, workpiece support removal andsurface treatment, after being printed. A device prepared by using the method is high in size precision and has relatively good surface roughness.

The invention discloses a porous plate type artificial cervical intervertebral disc prosthesis comprising an upper end plate and a lower end plate, wherein a spherical dome I with a porous structure and a conical bump I are arranged on the upper surface of the upper end plate, a hemispherical bump is arranged on the lower surface of the upper end plate, and a clamping boss I extending upwards is arranged on the side edge of the upper end plate; a spherical dome II with the porous structure and a conical bump II are arranged on the lower surface of the lower end plate, an ellipsoid groove is arranged on the upper surface of the lower end plate, and the hemispherical bump and the ellipsoid groove are matched with each other to form a ball groove joint, and a clamping boss II extending downwards is arranged on the side edge of the lower end plate. By using the porous plate type artificial cervical intervertebral disc prosthesis, dissection curved surfaces of an upper centrum and a lower centrum can be reserved in an operation, damage to original centrum structures is reduced, and the porous plate type structure has the latent function of prompting bones to grow in, and thus the artificial cervical intervertebral disc prosthesis has the long-term stabilizing capacity; the ball groove joint has three-dimensional multi-freedom degree activities such as rotation, flexion and extension and side bending, and meets the motion function of a normal intervertebral disc in a human body.

The invention relates to a cervical intervertebral disc scope, which is mainly applicable to cervical vertebra and cervical intervertebral operations on human bodies. The cervical intervertebral disc scope comprises an objective system, a body device, an ocular system, an instrument channel device, a water delivery device, a lighting device and an external mirror tube, and is characterized by also comprising an image transmitting part, wherein the image transmitting part comprises an image bundle, a short tube, an image bundle rear connector, an image bundle positioning tube and an image bundle regulating screw; one end of the image bundle is matched with the objective system and the other of the image bundle is fixed with the image bundle rear connector through the short tube; the image bundle positioning tube is connected with the body device; the image bundle regulating screw is fixed on the image bundle positioning tube; and the ocular system comprises a microobjective part and a microscopicocular part, an optical duct, an objective tube, a water supply duct and the instrument channel are arranged in the external mirror tube, and the body device comprises a hollow front body and a hollow rear body. The cervical intervertebral disc scope is reasonable in structural design and small in volume, an optical system is insusceptible to breakage, and the service life of the cervical intervertebral disc scope is long.

The invention provides an abrasive drill for a robot-assisted cervical intervertebral disc replacement surgery system, relates to the abrasive drill, and aims to solve the problem that at present, no special abrasive drill for the robot-assisted cervical intervertebral disc replacement surgery system exists. One end of a fixing circular ring penetrates through an output shaft of a high-speed DC motor and is fixedly mounted on the end surface of the output shaft end of the high-speed DC motor; the other end of the fixing circular ring is fixedly mounted on one end surface of a shell; one end of an abrasive drill transmission shaft is mounted inside the shell through a bearing; one end of the abrasive drill transmission shaft is fixedly connected with the output shaft of the high-speed DC motor through a shaft coupler; an abrasive head is fixedly mounted at the other end of the abrasive drill transmission shaft; a first central through hole is axially formed in an end cover; the end cover penetrates through the abrasive drill transmission shaft and is fixedly mounted on the other end surface of the shell; a second central through hole is axially formed in a connecting platform; the connecting platform penetrates through the high-speed DC motor and is fixedly connected with the fixing circular ring. The abrasive drill is applied to the for the robot-assisted cervical intervertebral disc replacement surgery system.

The invention provides a cervical intervertebral disc puncture locating guide device. The cervical intervertebral disc puncture locating guide device is mainly composed of a vertical rod (1), a crossrod (2) and an adjusting device (3), a fixing base (4) and a locking screw (5) are arranged at the lower end of the vertical rod (1), the adjusting device (3) is connected to the vertical rod (1) andis provided with a vertical adjusting button (7), a vertical locking bolt (6), a horizontal adjusting button (8) and a horizontal locking bolt (9), the cross rod (2) penetrates through the adjusting device (3) and is perpendicular to the vertical rod (1), and a rotary locating head (10) is fixedly connected to the top of the cross rod (2) and is provided with a puncture needle hole (11). Comparedwith the prior art, a doctor can be prevented from being exposed to X-rays for a long time, locating is accurate, the trachea, the gullet and the blood vessel can be effectively prevented from being punctured, the operating time of an operation is shortened, and harm to a patient is reduced.

The invention discloses an artificial cervical intervertebral disc prosthesis comprising a ring body. The top of the ring body is connected with a top plate and the bottom of the ring body is connected with a bottom plate. The middle of the side wall of the ring body is sunken inwards. A plurality of annular through holes are formed in the ring body; each annular through hole is formed in the circumferential direction of the ring body; a plurality of vent holes are formed between the annular through holes and an inner cavity of the ring body; and the annular through holes are communicated withthe inner cavity of the ring body through the vent holes. According to the invention, the annular through holes are communicated with the inner cavity of the ring body through the vent holes formed in the ring body, so that the phenomenon that the deformation of the annular through holes is inhibited by the air pressure of air in the annular through holes because a closed cavity is formed in theannular through hole with a small size is avoided and thus the elastic deformation capacity of the ring body is further improved; and the particles generated by abrasion of the annular through holes of the ring body in the deformation process can be timely and rapidly discharged out of the annular through holes, so that a problem that abrasion of the particles with the hole walls of the annular through holes in the annular through holes with frequent deformation is caused continuous to cause the abrasion aggravation is solved.

Presented are intervertebral disc implants (20) for the total replacement of an intervertebral disc (3) within the cervical spine, comprising two articulating members (21, 25), where the inferior member (21) on its upper surface is adapted for engaging an upper vertebral body (1) and its lower surface has an convex projection (23), and the inferior member (25) on its lower surface is adapted for engaging a lower vertebral body (4) and its upper surface has an saddle shaped projection (27), which is convex in its longitudinal anterior-posterior profile and which is concave in its transversal lateral profile with the general same diameter as the convex projection (23) of the superior member (21), therefore allowing flexion-extension-motion over a variable center of rotation, and in addition allowing rotation and lateral bending through a second independent center of rotation which is located above the intervertebral disc implant (20) at a distance which is defined by the diameter of the convex projection (23) of the superior member (21), therefore allowing coupled motion for rotation and lateral bending independently from flexion/extension, and therefore more closely replicating the natural kinematics of a cervical disc.