35 results about "Intervertebral spaces" patented technology

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.

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.

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.

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 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.

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 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 application relates to a device for maintaining intervertebral space and protecting the spinal cord. The device for maintaining intervertebral space and protecting the spinal cord, according to one embodiment of the present application, comprises a first body and a second body extending in the longitudinal direction, wherein the first body and the second body approach each other so as to be coupled to accommodate the spinal cord in an inner space while forming the inner space extending in the longitudinal direction, and the first body and the second body can be structured such that the respective dorsal ends thereof are bent inward.

The invention discloses an endoscopic fiber ring crack and intervertebral space height real-time digital display measuring clamp which comprises a handle, a fixing rod is fixedly arranged on one side of the outside of the handle, a rotating rod is arranged on one side of the fixing rod, a mounting seat is fixedly arranged on one side of the outside of the rotating rod, an opening cavity is formed in the mounting seat, and the opening cavity is communicated with the opening cavity. An opening cavity is formed in the outer side of the mounting base and is of an open structure, a fixing base is arranged on one side of the outer portion of the mounting base and is of a circular structure, a rotating cavity is formed in the fixing base, a rotating base is arranged in the rotating cavity and is in rotating fit with the rotating cavity, and an angle sensor is fixedly arranged at the rear end of the outer portion of the fixing base; and a rotating shaft of the angle sensor extends into the rotating cavity and is fixedly connected with the rotating seat. By means of the structure, the problems that the accuracy of the measuring pliers is not high enough, and the pliers head is difficult to fix are solved.

The utility model discloses an intervertebral quantitative bone grafting device which comprises a bone grafting tube and a push rod, a feeding cavity is arranged in the bone grafting tube, and the top of the bone grafting tube is fixedly connected with a funnel. Broken bone grains are fed into the feeding cavity from the funnel, the push rod is used for driving the push block to compact, and the distance between the bottom surface of the push block and the bottom of the bone grafting pipe can be determined according to the second scale mark on the outer wall of the push rod after compaction, so that the bone grafting amount can be easily calculated according to the size of the inner cavity of the feeding cavity of the bone grafting pipe, and the total volume of the bone grains in the pipeline can be quantified; and quantitative bone grafting in the intervertebral space can be realized. The sliding sleeve can slide up and down on the outer wall of the bone grafting tube by loosening the hand screw, the limiting distance can be confirmed according to the first scale line, the bone grafting tube is fed into the opened intervertebral space after the distance is confirmed, the insertion depth of the bone grafting tube can be limited through the limiting plate, and safety is improved. The feeding cavity of the bone grafting tube is designed to be rectangular, the bone grafting tube can be rotated by 90 degrees to open the intervertebral space after being placed into the intervertebral space, bone grafting under the state that the intervertebral space is opened is achieved, and the intervertebral bone grafting amount is increased.

The application provides a distractible fusion cage for implanting into a vertebra from a vertebral foramen, which comprises: a front support part gradually decreasing from front to back along an X direction; a rear support part having a first state and a second state, when the rear support part is switched from the first state to the second state, two branches are distracted by the front support part; a support band ring, the front end of the support band ring is limited by the front support part, and the rear end passes through the rear support part; during the conversion of the rear support part from the first state to the second state, the front support part and the rear support part relatively move close to each other, so that the rear end of the support band ring protrudes backward relative to the rear support part, and the vertebral foramen is shielded. The support band ring of the distractible fusion cage of the application protrudes backward to shield the vertebral foramen, without the need of additional occlusion instruments, so that the loss of bone particles and bone mud from the open annular fibrosus incision into the fusion cage can be blocked, the bone graft amount of the intervertebral space is ensured, and the success rate of bone fusion is improved.

The invention discloses an integrated spine endoscope lower end plate processor, and belongs to the technical field of spine endoscopes, the integrated spine endoscope lower end plate processor comprises an end plate processor body, and a drag hook mounting plate is fixed to the top end of one side of the end plate processor body; and a mounting mechanism convenient to disassemble, assemble and replace is arranged outside the end plate processor body and the adjusting pipe, and a switch mechanism for preventing too deep scraping is arranged in the mounting mechanism. By arranging the mounting mechanism and the switching mechanism, a gear ring shifting piece is manually pulled, so that a limiting cam does not limit an adjusting pipe any more, a reamer is fed into an intervertebral space through a T-shaped handle, the gear ring shifting piece and an arc-shaped spring are loosened, the limiting cam limits the adjusting pipe, and the T-shaped handle can only rotate and cannot move up and down; over-deep scraping can be effectively prevented, excessive damage to cancellous bones of the centrum is avoided, and therefore the amount of bleeding in the operation and the potential risk of centrum sedimentation are 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 utility model relates to the technical field of biopsy sampling, and provides an intervertebral foramen puncture lumbar intervertebral space biopsy sampling device which comprises a puncture needle, the outer side wall of the puncture needle is sleeved with a puncture cannula, the outer side of the top of the puncture cannula is in threaded connection with a first handle, and the top of the first handle is provided with a connecting sleeve; a trephine pipe is further installed on the inner side of the connecting sleeve, a second handle is installed on the top of the trephine pipe, the trephine pipe penetrates into the puncture cannula to be used for biopsy sampling, and scales are arranged on the outer side wall of the puncture needle and used for observing the insertion depth; through the arrangement of scales on the outer side of the puncture needle, a doctor can conveniently manage the insertion depth and position, follow-up sampling is facilitated, and through the arrangement of the puncture needle, the guiding effect can be achieved, and follow-up puncture cannula insertion and trephine tube sampling are facilitated.

According to some embodiments, a method of inserting a lateral implant within an intervertebral space defined between an upper vertebral member and a lower vertebral member includes creating a lateral passage through a subject in order to provide minimally invasive access to the intervertebral space, at least partially clearing out native tissue of the subject within and / or near the intervertebral space, positioning a base plate within the intervertebral space, wherein the base plate comprise an upper base plate and a lower base plate and advancing an implant between the upper base plate and the lower base plate so that the implant is urged into the intervertebral space and the upper vertebral member is distracted relative to the lower vertebral member.

This disclosure relates to the field of medical device technology, specifically to an intervertebral fusion device, comprising a base plate, the base plate including a first base plate and a second base plate, the first base plate and the second base plate being disposed vertically opposite each other; a first connecting post, the first connecting post being pivotally connected to one of the base plates in a vertically floating manner to provide a degree of freedom of relative vertical movement between the first base plate and the second base plate, and a degree of freedom of rotation relative to a pivot axis along a plane parallel to the first base plate. It can adjust different heights and angles for patients with different intervertebral spaces, can rotate appropriately with the patient's vertebral body movement, has a strong bonding force with the vertebral body, and can be stably fixed between vertebral segments, ultimately achieving a balance between segmental fusion and segmental freedom.

The utility model provides an intervertebral space treatment tool. The intervertebral space treatment tool comprises an operation part; an inner shaft is installed in the connecting rod, the inner shaft is in sliding connection with the connecting rod, and the connecting rod and the inner shaft are hinged to the operation part; the linkage rod is in linkage connection with the inner shaft, and when the inner shaft slides relative to the connecting rod, the inner shaft drives the linkage rod to move; and the first tracer is connected with the linkage rod so as to drive the first tracer to move. According to the intervertebral space treatment tool, an intervertebral space treatment tool model after angle adjustment of the operation part is updated and displayed in the display, tool positions at different bending angles are known, nerves are better protected from being injured, surgical operation is carried out under the condition that the display is visualized, the navigation function is achieved, and the operation efficiency is improved. The technical problem that in the prior art, an intervertebral space treatment tool cannot achieve visualization and precise operation during minimally invasive surgery is solved.

The utility model discloses a kind of rehabilitation physiotherapy beds in the technical field of physiotherapy, including fixed frame, the top of fixed frame is fixedly connected with top support, the top of top support is provided with main bed body, the one end of main bed body is provided with head support bed body, the one end of main bed body away from head support bed body is provided with two leg support bed body. Through accurate design and adjusting device, the accurate positioning of patient's vertebral body can be realized, the accuracy and effectiveness in treatment process are ensured. The way of natural gravity traction is adopted, which avoids the additional pain and discomfort that may be caused by traditional physiotherapy bed, and reduces the risk of secondary injury. By changing the body position of the patient, a three-dimensional traction force can be generated, effectively helping to open the intervertebral space and promote the herniated nucleus pulposus to return, thereby relieving the patient's pain and discomfort. According to the specific circumstances of the patient, the angle and position of the physiotherapy bed can be adjusted flexibly to achieve a personalized treatment plan and improve the treatment effect.

The utility model relates to an intervertebral space distraction device which comprises a distraction driving assembly and a distraction assembly arranged at one end of the distraction driving assembly. The distraction assembly comprises a first distraction piece and a second distraction piece, the first distraction piece and the second distraction piece are oppositely arranged, and the first distraction piece and the second distraction piece are located on the two sides of the distraction driving assembly respectively; the distraction driving assembly comprises a driving rod and a distraction driving part arranged at one end of the driving rod, the first distraction part and the second distraction part are located on the two sides of the driving rod respectively, and the driving rod can drive the distraction driving part to move in the axial direction of the driving rod; the distraction driving part moves to drive the first distraction part and the second distraction part to move in the direction away from the driving rod, narrow and small intervertebral space can be distraction by means of the technical scheme, then the height of the intervertebral space can be recovered, follow-up intervertebral space treatment and intervertebral fusion cage implantation are facilitated, and the intervertebral space distraction device is suitable for popularization and application. And the safety and the efficiency of the operation are improved.

The invention discloses a visual hard waist and block combined navigation puncture system for anesthesia, and particularly relates to the field of anesthesia, which comprises an ultrasonic data acquisition module, an electrical impedance data acquisition module, a data fusion processing module and a feedback output module, the ultrasonic data acquisition module is used for acquiring ultrasonic echo signals of skin, subcutaneous fat, supraspinous ligament, interspinous ligament, yellow ligament, centrum, intervertebral space and epidural space tissue on a puncture path in real time through a superfine array type ultrasonic probe integrated on a puncture needle core, and converting the signals into digital ultrasonic image data; and the data are synchronously transmitted to the data fusion processing module. Through ultrasonic wave and electrical impedance bimodal data acquisition, fusion processing and multi-dimensional feedback navigation, precise visual operation of hard waist combined block anesthesia is realized, the puncture success rate is greatly improved, the complication risk is reduced, the operation time is shortened, the pain of a patient is relieved, meanwhile, the system is adaptive to the requirements of special crowds and clinical quality control teaching scenes, and the application prospect is wide. And the safety is high.