71 results about "Intervertebral spaces" patented technology

The invention relates to the technical field of medical equipment, in particular to an angle-adaptive anterior cervical dilator. An auxiliary plier body is connected with a main plier body. The plurality of supporting rods are mounted at respective working ends; the self-adaptive opening assembly is used for automatically adjusting and fixing according to the intervertebral space of a patient, and comprises a sliding adjusting part which is fixed on the main forceps body and is used for opening the main forceps body and the auxiliary forceps body in a semicircular rotating direction; the hydraulic triggering part is installed in the main clamp body and acts on the sliding adjusting part so that the main clamp body and the auxiliary clamp body can be locked after the cervical vertebra of the patient is opened. The clamping blocks are driven through the hydraulic action to lock the piston block located in the inner cavity of the clamp body, and then the main clamp body and the auxiliary clamp body fix the intervertebral space at the current opening distance; the clamping distance adjusting assembly is designed, the auxiliary supporting rod and the ratchet bar are combined with the locking block with the rack structure to fix the auxiliary supporting rod, and the fixing device has the advantages of being good in fixing effect, high in flexibility and convenient to use.

The invention provides an intervertebral prosthesis and an intervertebral prosthesis component, and the intervertebral prosthesis comprises an upper end plate; the lower end plate and the upper end plate are arranged at intervals; the adjusting shaft assembly is arranged between the upper end plate and the lower end plate, and the adjusting shaft assembly comprises an outer shaft and an inner shaft telescopically arranged in the outer shaft; the first adjusting piece is arranged on the inner shaft; the first transmission structure is connected between the first adjusting piece and the first end of the upper end plate and between the first adjusting piece and the first end of the lower end plate; the second adjusting piece is movably arranged on the outer shaft; and the second transmission structure is connected between the second adjusting piece and the second end of the upper end plate and between the second adjusting piece and the second end of the lower end plate. According to the technical scheme, the problems that in the prior art, an intervertebral prosthesis is difficult to be matched with the natural angle of the intervertebral space, and the use stability of the intervertebral prosthesis is reduced are effectively solved.

A method of implanting an intervertebral spacer may include positioning the intervertebral spacer within an intervertebral space defined by adjacent vertebral bodies. The intervertebral spacer may include a plurality of bores, and each of the plurality of bores may be configured to receive either a linear fastening element or a curvilinear fastening element. The method also may include selecting a first fastening element from a group including linear fastening elements and curvilinear fastening elements, and inserting the first fastening element into a first bore of the plurality of bores such that the first fastening element is inserted into one of the adjacent vertebral bodies to secure the intervertebral spacer within the intervertebral space.

The invention relates to the technical field of testing, in particular to a dummy lumbar vertebra gap adjusting device which comprises a concave plate, the upper edge and the lower edge of the front surface of the concave plate are jointly and fixedly connected with a soft plate, a distance adjusting mechanism is arranged behind the soft plate, and one side edge of the concave plate is fixedly connected with a side block. Two rotating plates are rotatably connected to the surface of one side of the side block through a locking mechanism, a sliding plate is connected to the front end of each rotating plate through a telescopic mechanism, and an L-shaped strip is rotatably connected to the side, close to the concave plate, of each sliding plate through a reset mechanism. And meanwhile, the bending degree of the waist of the dummy is adjusted, so that a standardized impact test can be assisted.

The present invention relates to an intervertebral implant and the device and system comprising the same. The intervertebral implant comprises: a core part having at least one hole on its surface, with at least one working hole; an outer shell, at least partially covering the core part, including a top and a bottom, with the bottom having an opening; and a mesh configured between the outer shell and the core part, surrounding the exterior of the core part; wherein the working hole corresponds to the opening. The advantage of the present invention is that: the mesh structure can expand in intervertebral space when infused with fusion materials and conform to the vertebral bodies, thereby enhancing the contact area to endplates and improving the success rate of fusion. At the same time, the mesh structure can be protected from damage during insertion. In addition, the intervertebral implant of the present invention can be inserted between the vertebral bodies more easily and can provide more effective support, thereby improving the stability of implant and the likelihood of successful fusion.

The present invention relates to an intervertebral fusion device, which includes a shaft body, a first distraction member and a fusion body. The first distraction member is mounted on the shaft body and can move axially along the shaft body. The first distraction member has an inner end and an outer end distributed radially along the shaft body, and the inner end is connected to the shaft body. The fusion body is circumferentially arranged around the shaft body and connected to the outer end of the first distraction member. A first slide is provided on the inner wall of the fusion body. An angle is provided between the extension direction of the first slide and the outer wall of the fusion body. The outer end of the first distraction member is movably arranged in the first slide. In the above-mentioned intervertebral fusion device, the first distraction member can change the distance between the fusion body and the shaft body by sliding along the first slide, thereby changing the size of the distraction of the intervertebral fusion device. When the intervertebral fusion device is implanted, the distraction range of the intervertebral fusion device can be adjusted according to the specific conditions of the intervertebral space, and the contact surface with the vertebral space can be increased to better match the intervertebral space, maintain the height of the intervertebral space, and restore the physiological curvature of the lumbar spine.

This invention relates to the field of intelligent spinal detection technology, and more particularly to an intelligent recognition system for spinal images. The invention acquires the spinal contour through an image acquisition module, divides the contour into several sub-regions through a scanning module, and acquires the grayscale values ​​of several pixels within each sub-region. A grayscale calibration unit determines the calibrated grayscale values ​​for filling each pixel within the sub-regions. A filling unit determines the intervertebral space filling characterization and identifies the dominant sub-regions of intervertebral space features. A recognition module identifies the end-vertebral tangent within the dominant sub-regions of intervertebral space features. An evaluation output module outputs the Cobb angle of the scoliosis assessment result. Furthermore, this invention achieves precise analysis of pixel grayscale values ​​within the spinal contour sub-regions and explicit processing of intervertebral space features, establishing an effective mechanism for locating end-vertebral tangents based on pixel grayscale differences, thereby improving the accuracy and efficiency of Cobb angle calculation in scoliosis assessment.

The horizontal type cervical traction bed comprises a bed body, the head position of the bed body is provided with a head movable bed plate capable of sliding along an arc-shaped track, and the head movable bed plate is connected with the bed body through an arc-shaped sliding rail mechanism arranged below the head movable bed plate; the arc-shaped sliding rail mechanism can be movably adjusted according to the use requirements of a patient; a neck fixing mechanism is arranged above the head moving bed board and used for fixing the head of a patient. According to the horizontal type cervical vertebra traction bed adapting to the physiological curvature of the cervical vertebra, through the unique arc-shaped traction groove design, the natural physiological curvature of the cervical vertebra of the human body can be perfectly matched; in the traction process, traction force can be evenly distributed according to the bending shape of the cervical vertebra and accurately acts on each vertebral body, intervertebral space is effectively expanded, compression of the intervertebral disc on nerve roots and spinal cords is remarkably relieved, and compared with traditional traction equipment, the precision and effectiveness of traction treatment are greatly improved, and a more remarkable symptom relieving effect is brought to a patient.

The invention relates to the technical field of medical instruments, in particular to an interbody fusion cage which comprises an interbody fusion cage body, the interbody fusion cage body is of a polyhedral structure and is implanted into the lumbar intervertebral space through an anterior lateral approach, and a screw channel and a connecting screw opening are formed in the front end position and the rear end position in the length direction of the interbody fusion cage body respectively; the screw channel is used for allowing screws to penetrate through the upper surface and the lower surface of the interbody fusion cage body, connected with the vertebral cancellous bone in a matched mode and fixed to the inner side of the lateral portion of the vertebral cancellous bone. The connecting screw is used for being connected with an installation instrument in a matched mode when the interbody fusion cage is implanted. By means of the screw channel, the fixing capacity of the interbody fusion cage can be effectively improved, better stability can be effectively provided for an OLIF operation through a proper implantation position and screw placement internal fixing operation, the occurrence risk of postoperative internal fixing related complications is effectively reduced, and the safety of the interbody fusion cage is improved. The effectiveness and the safety of the fusion cage in the lumbar vertebra front and outer side approach interbody fusion operation are improved.

An expansion member for distributing graft material through a cage and into an intervertebral space is provided. The expansion member has a central beam with an entry port in fluid communication with an exit port for distribution of the graft material. The central beam is inserted into a cage having a reversible collapse from an expanded state into a collapsed state, the expanded state forming a graft distribution window. The expanded state, for example, can be configured to open the graft distribution window which at least substantially closes upon the reversible collapse.

The invention discloses a capsular bag fusion cage which comprises a porous capsular bag main body, an implantation sheathing canal for auxiliary installation, and a connecting tube and an injection tube which are used for injecting filler, the porous capsular bag body is compressed and folded into a slender cylinder in a natural state, the porous capsular bag body comprises a telescopic woven sleeve, the porous capsular bag body is integrally woven and formed through arrangement of the porous capsular bag body, the porous capsular bag body can be folded, minimally invasive use is facilitated, the porous capsular bag body is in the slender cylinder shape before implantation, and the implantation sheathing canal assists in being implanted into the intervertebral space; then a connecting channel is constructed through a connecting pipe, and then filler is discharged into the porous bag main body through an injection pipe, so that the porous bag main body is expanded according to a certain preset form, the goodness of fit between the porous bag main body and the intervertebral space is improved, meanwhile, operative wounds are greatly reduced, the hospitalization time is shortened, and rehabilitation of a patient is accelerated; and the use efficiency of the capsular bag fusion cage is improved.

The utility model belongs to but not limited to the technical field of medical instruments, and discloses an endoscopic intervertebral space planer tool device which comprises a connecting part, a working part is arranged at one end of the connecting part, and a universal connecting interface is arranged at the other end of the connecting part and is in butt joint with a power system; the inner diameter of the working part is larger than that of the connecting part, the working part expands at the far end, the diameter of the working part cutter head is larger than that of the connecting part outer sleeve rod, and a working part shell and the cutter head are both provided with openings. A communicated hollow pipeline is arranged between the inner core rod of the connecting part and the tool bit of the working part and communicated with the connector, and after the power system is connected with the connector, the inner core rod and the tool bit axially move and rotate in the outer sleeve rod and the shell. And the suction function is realized through the working part shell opening, the tool bit opening and a hollow pipeline between the connecting part inner core rod and the working part tool bit. When being used for treating the intervertebral space, the device can be inserted into the intervertebral space under the microscope to finish one-time treatment, so that the operation efficiency is improved, and the operation difficulty is reduced.

This invention relates to the field of interbody fusion device technology, specifically a 3D-printed porous interbody fusion device, comprising a fusion device body, a first filling hole penetrating through the middle of the fusion device body, and a plurality of internal reinforcing ribs evenly distributed circumferentially on the inner wall of the first filling hole. Based on the biomimetic mechanical design concept of the biomedical engineering industry, this interbody fusion device can break through the limitations of traditional fixed-width fusion devices, and can accurately match the anatomical width of the intervertebral space of different patients without the need for manual cutting and modification during surgery. It can fully adapt to the individualized needs of various heights, weights and disease segments, and fundamentally avoid the risks of endplate damage, infection and anchoring structure damage caused by cutting. After implantation, the self-locking component can achieve immediate rigid locking, completely blocking the reverse rebound path of the adjustment block. Combined with the multi-occlusal tooth structure, it forms a stable mechanical anchor, eliminating postoperative micromovement, displacement and slippage problems, and greatly improving the overall stability of the fusion device in the early stage of implantation.

The utility model discloses an interbody fusion cage capable of being opened, and relates to the technical field of medical instruments, in particular to the interbody fusion cage capable of being opened. The anti-sinking device comprises an outer shell, an arc-shaped convex plate, an adjusting plate, a screw rod, a lifting component and an anti-sinking component, the adjusting plate is arranged in the outer shell, and a front-back through hole for the screw rod to penetrate through is formed in the adjusting plate; the arc-shaped convex plate is arranged at the front part of the outer shell, and a screw hole is formed in the center of the arc-shaped convex plate and is screwed with a screw rod penetrating through the through hole from the rear part of the adjusting plate; two lifting components are symmetrically assembled at the upper end and the lower end of the outer shell. An anti-sinking part is assembled outside the lifting part; according to the technical scheme, the problems that in the prior art, a fusion cage is too thick to be installed in an intervertebral gap easily, and the fusion cage is too thin to facilitate an operation but not good in contact with a vertebral body are solved; the problems that the thickness of the fusion cage is changed and the treatment effect of a patient is reduced due to the fact that a screw slip condition cannot be locked when adjustment is carried out through a screw rod are solved.

The invention discloses a body position auxiliary device for lumbar puncture, and belongs to the technical field of lumbar puncture, the body position auxiliary device comprises a main body module and an arc plate module, the main body module comprises a rotating cylinder, the outer surface of the rotating cylinder is rotatably sleeved with a central rotating sleeve, and the outer surface of the central rotating sleeve is fixedly connected with a binding assembly; the arc plate module comprises a plurality of steering assemblies, through arrangement of an external rotating sleeve, the steering assemblies, locking assemblies, linkage assemblies and first locking grooves, accurate adjustment and stable locking of the optimal bending radian of the waist of a patient are achieved, and through cooperation with sequential hinging of a plurality of steering units in the steering assemblies, the optimal bending radian of the waist of the patient is adjusted. The whole radian can be flexibly adjusted to adapt to body types and age differences of different patients, the problems that in the prior art, manual supporting is prone to fatigue, and bandage fixing is difficult to achieve accurately are solved, it is ensured that the patient stably maintains the individualized optimal waist bending radian in the whole puncture process, the accuracy of intervertebral space exposure is improved, and the puncture difficulty is reduced.

An expandable interbody spacer including a first endplate and a second endplate, each with an outwardly facing surface, an inner facing surface, and two opposing isosceles-trapezoidal-shaped sidewalls. A motion assembly is located between the opposing sidewalls of both endplates, including a first motion guider with a smooth central cylindrical aperture, a second motion guider with a threaded central cylindrical aperture, and a screw with a screwhead and a partially threaded shank. The shank of the screw is positioned through the aperture in the first motion guider and into the aperture in the second motion guider. Clockwise rotation of the screwhead increases the height between the endplates by drawing the motion guiders together, while counterclockwise rotation decreases the height by moving them apart. The expandable interbody spacer permits controlled, in situ adjustment of height of the expandable interbody spacer to fit various intervertebral space requirements during spinal fusion procedures.

The invention provides a lumbar vertebra oblique lateral self-locking integrated fusion internal fixation system which comprises an interbody fusion cage, the interbody fusion cage is of a torpedo-shaped streamline structure on the whole and is of an arc-shaped appearance with the middle protruding and the two sides low, the front portion of the interbody fusion cage is high, the rear portion of the interbody fusion cage is low, the side section of the interbody fusion cage is wedge-shaped, and the interbody fusion cage is matched with an intervertebral space structure. A pair of diagonal trusses is fixedly connected in the hollow cavity; the micro side plate is arranged on one side of the interbody fusion cage, the micro side plate and the interbody fusion cage are of a 3D printing integrated structure, a threaded hole and clamping grooves in the two sides are formed in the middle of the micro side plate, and four inclined threaded holes are formed in the four corners of the micro side plate respectively; the number of the fixing screws is four, the fixing screws are connected into the inclined threaded holes through threads respectively, and the four fixing screws are in a multi-axial-direction crossed angulation form. According to the low-incisura, integrated and self-locking novel oblique lateral fusion internal fixation system, internal fixation related complications can be reduced, the operation process in an operation is simplified, the screw placement safety is ensured, and the use experience of the fusion system is improved.

The present invention relates to a prosthesis for implantation into an intervertebral space of a cervical vertebra, and specifically discloses an intervertebral fusion device, comprising: a fusion cage body having two end faces and a bone grafting window penetrating through the two end faces, the fusion cage body being implanted into the intervertebral space in such a manner that the two end faces thereof face end plates of two vertebrae, respectively; the bone plate is provided with through holes located in the upper portion and the lower portion respectively, the bone plate is arranged on the front side of the cervical vertebra and crosses two vertebrae defining an intervertebral gap, and the through hole in the upper portion and the through hole in the lower portion are opposite to the two vertebrae respectively; the bone screws penetrate through the through holes in the upper part and the lower part of the bone plate and are screwed into the vertebrae, so that the bone plate is respectively fixed with the two vertebrae; the linear component is provided with a near end and a far end, the near end of the linear component is attached to the middle of the bone plate, and the far end of the linear component extends into the intervertebral gap to be attached to the front side of the fusion cage body to limit displacement of the fusion cage body and maintain the fusion cage body in the middle area of the intervertebral gap.

The invention relates to the technical field of medical instruments, in particular to a three-screw-channel internal fixation interbody fusion cage which comprises an interbody fusion cage body, the interbody fusion cage body is of a polyhedral structure and is implanted into the lumbar intervertebral space through an anterior-lateral approach, and screw channels and connecting screw openings are formed in the front end position and the rear end position in the length direction of the interbody fusion cage body respectively; the screw channel is used for allowing screws to penetrate through the upper surface and the lower surface of the interbody fusion cage body, connected with the vertebral cancellous bone in a matched mode and fixed to the inner side of the lateral portion of the vertebral cancellous bone. The connecting screw is used for being connected with an installation instrument in a matched mode when the interbody fusion cage is implanted. By means of the screw channel, the fixing capacity of the interbody fusion cage can be effectively improved, better stability can be effectively provided for an OLIF operation through a proper implantation position and screw placement internal fixing operation, the occurrence risk of postoperative internal fixing related complications is effectively reduced, and the safety of the interbody fusion cage is improved. The effectiveness and the safety of the fusion cage in the lumbar vertebra front and outer side approach interbody fusion operation are improved.

The utility model relates to the technical field of medical instruments, in particular to an interbody fusion cage which comprises an upper fusion plate, a lower fusion plate, a left traction block and a right pushing block, an upper sliding groove, a lower sliding groove, an upper protruding block and a lower protruding block are arranged on the upper fusion plate and the lower fusion plate, and a left sliding groove, a right sliding groove, a left protruding block and a right protruding block which are matched are arranged on the upper fusion plate, the lower fusion plate, the left traction block and the right pushing block. The upper fusion plate and the lower fusion plate are arranged on the left traction block and the right pushing block, adjusting assemblies for adjusting the distance between the upper fusion plate and the lower fusion plate are arranged on the left traction block and the right pushing block, and each adjusting assembly comprises an inner thread ring and a screw which are arranged on the left traction block and the right pushing block and matched with each other. The distance between the upper fusion plate and the lower fusion plate is adjusted, so that the interbody fusion cage adapts to the intervertebral space, and the problem of height adjustment of the interbody fusion cage is solved; the whole structure is simple, operation is convenient, and the success rate of surgery is improved.

The present invention relates to the field of medical device technology, and discloses an intelligent intervertebral spacer, comprising a transverse central axis, a plurality of longitudinal axes arranged perpendicular thereto and clamped side by side on the central axis, and a spacer unit slidably connected to each other on the longitudinal axis on both sides of the central axis, the spacer unit comprising a slider, a spacer handle connected below each slider, the spacer handle being used to be inserted between adjacent vertebrae, and a drive mechanism being provided between the slider and the longitudinal axis; the spacer unit located in the middle of the central axis is defined as a main spacer, and the remaining spacers are defined as auxiliary spacers, the main spacer is provided with a pressure sensor and a position sensor, and the auxiliary spacer is provided with a pressure sensor; and a control unit is further provided, the pressure sensor, the position sensor, and the drive mechanism being communicatively connected to the control unit. The present invention, by providing multiple spacer units to simultaneously space the intervertebral space, avoids stress concentration and fractures during vertebral spacer expansion, and can monitor the pressure exerted on each spacer unit and the spaced height of the middle vertebrae in real time, avoiding reliance on subjective judgment, and is particularly suitable for patients with osteoporosis.

An expandable lateral lumbar interbody spacer for placement between adjacent vertebrae configured to have a collapsed state suitable for insertion into an intervertebral space between a pair of adjacent vertebrae, and an expanded state that includes lordosis change during vertical expansion.

The utility model relates to the technical field of medical instruments, and provides a lumbar vertebra fusion device which comprises a magnesium-calcium alloy fusion cage and a magnesium fluoride coating, the magnesium fluoride coating wraps the surface of the magnesium-calcium alloy fusion cage, and the magnesium-calcium alloy fusion cage is used for being implanted into an intervertebral space. The lumbar fusion device provided by the utility model is used for overcoming the defects of high elastic modulus and insufficient biological activity of a fusion device in the prior art, and due to the arrangement of the magnesium-calcium alloy fusion device, the biocompatibility and the degradability of magnesium are reserved, and the mechanical property and the degradation behavior are optimized through the introduction of the calcium element. The magnesium fluoride coating is arranged, so that the degradation rate of the magnesium-calcium alloy can be slowed down, and the synostosis efficiency can be remarkably improved.

An apparatus for use in preparing the intervertebral disc space. The apparatus includes a powered disc cutter that can be inserted through a tube and into the disc space. Once inside the disc space, the cutter can be rotated on its axis and articulated through the disc space to break up and disconnect the disc tissue from the surrounding disc tissue and disc annulus. The device is powered by a handheld driver that utilizes a motor to impart motion, such as rotary motion, to an elongated shaft assembly having a cutting tool or assembly pivotably attached to the distal end thereof. The cutting tool is mounted to the end of the drive shaft assembly by a linkage so that the shaft may be inserted in a straight configuration down a narrow access port. The cutting assembly can spin on its axis while being articulated providing access to the intervertebral space.

The application discloses an extended vertebral body fusion device, which comprises an implanting mechanism, a pushing mechanism and a supporting mechanism. The implanting mechanism is a structure capable of being inserted into an intervertebral space between two adjacent vertebral bodies of a patient with a spinal column and capable of maintaining or expanding the intervertebral space after being inserted. The implanting mechanism is provided with an implanting cavity capable of being communicated to the intervertebral space. The pushing mechanism is a structure capable of being inserted into the implanting cavity and capable of moving back and forth along the implanting cavity after being inserted. The pushing mechanism is used for pushing and controlling the supporting mechanism to be implanted into the intervertebral space through the implanting cavity. The supporting mechanism is a structure capable of being in a contracted state inside the implanting cavity and capable of being in an expanded state outside the implanting cavity. The supporting mechanism is passively deformed and expanded into an intervertebral space supporting body after being implanted into the intervertebral space, so that the fusion with the two adjacent vertebral bodies is realized. The device can effectively overcome the problem that a flexible bag is implanted by a complex method to expand the intervertebral space in the prior art, simplifies operation steps, reduces the operation difficulty and improves the operation efficiency.

A device and methods for intervertebral spinal fusion of adjacent intervertebral bodies. An intervertebral spacer is positioned within a narrow disc space between adjacent intervertebral bodies of a patient. The spacer is arranged with upper and lower guides. The guides are adapted to simultaneously guide the deployment of upper and lower anchors of an anchoring device into their respective intervertebral bodies. The spacer is also adapted to lock the upper and lower anchors to the spacer in the deployed position.

The application provides a holder for an intervertebral fusion cage, comprising an outer tube, an inner tube penetrating into the outer tube, the inner tube comprising an inner tube body and a clamping tube, a partition groove being arranged at the front end of the clamping tube, the partition groove separating the clamping tube into two structurally symmetrical tube bodies, a holding piece being arranged at the front end of each tube body, a connecting rod being connected with the outer tube at the first end, and a buckle being arranged on the inner tube body and movably connected with the second end of the connecting rod. The holder for the intervertebral fusion cage is simple in operation, convenient for holding and taking the intervertebral fusion cage, and effective in saving the operation time for driving the intervertebral fusion cage into the intervertebral space and separating the intervertebral fusion cage.

The present invention relates to an intervertebral implant and the device and system comprising the same. The intervertebral implant comprises: a core part having at least one hole on its surface, with at least one working hole; an outer shell, at least partially covering the core part, including a top and a bottom, with the bottom having an opening; and a mesh configured between the outer shell and the core part, surrounding the exterior of the core part; wherein the working hole corresponds to the opening. The advantage of the present invention is that: the mesh structure can expand in intervertebral space when infused with fusion materials and conform to the vertebral bodies, thereby enhancing the contact area to endplates and improving the success rate of fusion. At the same time, the mesh structure can be protected from damage during insertion. In addition, the intervertebral implant of the present invention can be inserted between the vertebral bodies more easily and can provide more effective support, thereby improving the stability of implant and the likelihood of successful fusion.