43 results about "Spinal canal" patented technology

The invention relates to the technical field of intraoperative intelligent monitoring, and particularly discloses a spinal canal debonding method and system for real-time state evaluation, and the method comprises the steps: collecting neural structure microcirculation blood flow data in real time through integrating a micro-sensing unit at a working end part of a surgical instrument, and extracting blood flow oscillation frequency and capillary hematocrit parameters; performing multi-scale signal decomposition on the blood flow oscillation frequency to obtain an energy distribution parameter, and performing dynamic mode recognition on the hematocrit data to obtain a main variation characteristic value; fusing the two characteristic parameters to generate a nervous tissue vitality index; inputting the index into a pre-trained neural network for time sequence feature analysis, and outputting a graded ischemia risk early warning signal; the operation rhythm is automatically adjusted through a decision tree control mechanism based on the early warning signal, and self-adaptive regulation and control according to the state of the nervous tissue are achieved; the technical problem that the risk of neural ischemia cannot be monitored in real time in a traditional spinal canal release operation is solved, and occult nerve injury caused by asymptomatic neural ischemia can be prevented.

The invention discloses an intra-spinal anesthesia catheter device with a temperature compensation function, and relates to the technical field of medical instruments. The intra-spinal anesthesia catheter device comprises an anesthesia catheter body, the anesthesia catheter body comprises a thermoplastic elastomer and a shape memory polymer, and the thermoplastic elastomer wraps the outer side of the shape memory polymer. The intraspinal anesthesia catheter has the beneficial effects that through combination of an innovative intelligent material system and an active closed-loop control technology, the traditional contradiction that the rigid requirement and the soft safety of the catheter cannot be achieved at the same time in intraspinal anesthesia is fundamentally solved. The method has the primary advantage that the dynamic programmable adjustment of the mechanical property of the catheter is realized.

The present disclosure generally relates to systems and methods of use for draining cerebrospinal fluid (CSF) from a brain or a spinal canal in a subject, for example, to treat hydrocephalus or other conditions. In some embodiments, the disclosure relates to a device comprising a flow controller positioned within a conduit that allows CSF to flow through the conduit from a first end to a second end. This may allow the CSF to drain, for example, from an intradural space (such as a thecal sac) into, for example, a paraspinal space, paraspinal vein or other venous space, or peritoneal cavity. A variety of methods may be used to hold or anchor the device in place, for example, an expansion apparatus. In some embodiments, the device can be implanted percutaneously at a location along or within a subject's spinal column, thus reducing the need for surgery, general anesthesia, and hospitalizations.

This invention relates to a novel P-approach endoscopic lumbar fusion surgery method, belonging to the field of lumbar fusion surgery technology. This method addresses the high risk of nerve injury and insufficient operational precision in existing endoscopic fusion techniques by proposing an improved solution. It utilizes Kirschner wires for positioning at the inferior articular process to establish a precise entry point avoiding the nerve root pathway; a visually guided circular saw is used throughout the endoscopic procedure to construct a safe triangular working channel directly reaching the spinal canal; under full endoscopic monitoring, a unilateral approach is used for bilateral spinal canal decompression, thoroughly removing diseased tissue and scraping the endplates until punctate bleeding occurs; a bone graft cannula with a curved tip is used to precisely implant the fusion device into the anterior region of the intervertebral space, restoring intervertebral height through a self-locking structure; finally, a universal pedicle screw is percutaneously implanted for fixation. This method reduces the risk of nerve injury, improves surgical safety and efficiency, and is suitable for patients with lumbar spondylolisthesis complicated by spinal stenosis.

A guiding device for endoscopic spinal puncture includes a base with adhesive paper at its bottom end, a support plate on top of the base (the support plate is an isosceles triangle), two symmetrically arranged support blocks fixed to the top of the base, and the lower end of the support plate rotatably mounted on the support blocks via a pivot. An L-shaped baffle is fixed to one side of the support plate, with a claw at its bottom end. A corresponding slot is formed at the top of the base. The base is cylindrical, and its diameter is equal to the height of the support plate. This invention has a simple structure and is easy to use.

The invention discloses a method for constructing a lumbar spinal stenosis animal model, which comprises the following steps of: fixing an experimental rabbit at a prone position, and then forming a 2-3cm incision in the back side of the waist along the longitudinal direction so as to completely expose an intervertebral plate window between a first lumbar vertebra and a second lumbar vertebra; a disposable venous indwelling needle is used for puncturing the ligamentum flavum at the interlaminal window and then puncturing the disposable venous indwelling needle into the spinal canal, and then a metal needle core of the venous indwelling needle is pulled out, so that the soft catheter part of the venous indwelling needle is indwelled in the spinal canal; uniformly mixing PMMA bone cement powder and liquid to prepare fluid bone cement, extracting the bone cement by using an injector, slowly injecting the bone cement into the spinal canal, and removing the soft catheter after injection is completed; the injected bone cement is adhered to the inner wall of the spinal canal after being solidified, so that the inner diameter and the volume of the spinal canal are reduced in physical space, compression on spinal nerves is formed, and the animal model with lumbar spinal stenosis is obtained. The problem that in the preparation process of an animal model, nerves are prone to being damaged, and research test requirements cannot be met is solved.

Compositions for the treatment of acute manifestations because of oxidative injury by reactive oxygen species (ROS) and chronic development of fibrosis are provided. Compositions of the present invention include perfluorocarbon, hydrogen and oxygen gas, N-acetylcysteine, and glycine to counter robust oxidative responses unleashed following injury from both mechanical and non-mechanical conditions. Methods are also disclosed for delivery to challenging locations (olfactory cleft, spinal canal) and in hostile conditions (post trauma brain, spine, and upper and lower airways), with the invention's products "calming" inflamed tissue by neutralizing ROS in both acute and later complications. Active pharmaceutical ingredient(s) can also be employed to provide both acute and chronic benefit, and such active ingredients themselves can be augmented by the composition, enabling increased drug uptake and oxygenation. The present invention provides broad relief in many conditions for both human and companion subjects.

The utility model relates to a displacement reduction device for a fracture block in a spinal canal. The displacement reduction device comprises a holding part, a first connecting rod, a second connecting rod and a reduction part, the reduction part comprises a correction rod, a reduction rod and an epidural mater protection rod; the middle of the reset rod is an arc bent section, and two ends are linear sections. One surface of the correcting rod is connected with the end part of the second connecting rod; the linear section end part of one end of the resetting rod is connected with the correcting rod; the convex surface of the arc bent section of the reset rod faces the holding part; the end part of the linear section at the other end of the reset rod is connected with the dura mater protection rod; and the dura mater protection rod faces the direction of the holding part. The arc bent section of the reduction rod is more attached to an irregular fracture block, and meanwhile the correction rod can better support and stabilize the fracture block to be reduced in the operation process and prevent the fracture block from deviating and rolling. By arranging the dura mater protection rod on the reduction rod, when the fracture block is reduced, the compression of the spinal cord is directly relieved, the dura mater, the spinal cord and nerves can be prevented from being damaged, and iatrogenic secondary injury to a patient is avoided.

The invention discloses a spinal canal puncture needle progress recognition method and a puncture system.The method comprises the steps that puncture real-time data are obtained firstly, standardized puncture real-time data are obtained through filtering and normalization processing, a time sequence is generated through time step division, then a pre-trained puncture progress recognition model is called to recognize the time sequence, and a puncture progress recognition result is obtained; and outputting a corresponding puncture state recognition result. Through standardization processing and time sequence conversion of puncture real-time data (such as force signals), automatic identification of a tissue layer where a needle head is located is achieved in combination with a pre-training model, dependence on doctor experience and subjective judgment is avoided, and complications caused by misjudgment are effectively reduced. Meanwhile, the puncture progress can be dynamically tracked through cooperation of real-time data processing and model recognition, and the accuracy and safety of puncture operation are further guaranteed.

A spinal shield establishes a protective barrier around an exposed spinal canal during a surgical procedure. The spinal shield includes a shield body having a plurality of lateral extensions configured to be positioned over the exposed spinal canal, where each of the plurality of lateral extensions includes a hinge that permits rotation of the plurality of laterally extending legs in only a downward direction. The shield body can define a curved configuration or a substantially planar configuration. Further, the spinal shield can include a handle portion that extends outwardly in perpendicular relation to the shield body.

Systems, devices, and methods for performing minimally invasive spinal procedures are described herein. The systems, devices, and methods may be used to percutaneously access the spinal canal and perform a spinal procedure. The systems and devices may integrate various instruments for performing the procedures, thus improving their ease of use, reducing procedural complexity, and minimizing procedure time.

The invention relates to the field of medical auxiliary instruments, in particular to a spinal endoscopic dura mater retraction device which comprises a puncture component, and the puncture component is used for percutaneous puncture to the position close to a spinal canal dura mater; a suspension part is arranged in the puncture part, and the suspension part is used for extending out of the puncture part and being connected with the cut edge of the dura mater. An operation part is further arranged on the puncture part, and the operation part is used for adjusting the retraction force applied to the dural mater by the suspension part; by controlling the operation part, the suspension part is fixed and retracts the dura mater to expose the spinal cord tissue. Through the integration of puncture, suspension and operation components, the traction of the dura mater under the minimally invasive condition of the spine endoscope is realized.

The application provides a spine screw placement preoperative planning quality control method, an electronic device and a computer storage medium. By constructing boundary models of key risk objects such as pedicle cortex, spinal canal, intervertebral foramen and superior articular facet joint surface, combining preoperative screw placement planning data to calculate quantitative indicators such as minimum safety distance, predicted breaking amount and breaking direction, and inputting structured feature vectors and local image features of the planning channel into a risk assessment model to output risk assessment results, the safety hazards of screw placement can be accurately identified for complex cases such as pedicle morphology variation, degeneration or deformity. At the same time, the deficiencies of the existing planning system, such as the lack of quantitative quality control and grading early warning mechanism, can be made up. High-risk planning schemes can be prompted in time, and objective basis for path correction can be provided, so as to improve the accuracy, safety and standardization of spine screw placement preoperative planning.

Embodiments include example systems, methods, and computer-accessible mediums for analysis and visualization of data associated with anatomical images. In some embodiments the anatomical images can be spinal images used for assessment of stenosis and disc degeneration. In some embodiments, systems, devices, and methods described herein include selecting a region of interest (ROI) in a three-dimensional (3D) volume of image data of a plurality of vertebra of a spine, identifying one or more anatomical parts in the ROI, determining one or more parameters of the one or more anatomical parts, and assessing a severity of a spinal deformity based on the one or more parameters.

The invention discloses a spinal stenosis minimally invasive nerve protection decompression device, and relates to the related field of spinal stenosis minimally invasive, the spinal stenosis minimally invasive nerve protection decompression device comprises a fixing cylinder, the outer side of the upper end of the fixing cylinder is fixedly provided with a connecting block, and the lower end of the circle center of the fixing cylinder is movably provided with a fixing long needle; the top of the fixed long needle is fixed to the bottom end of the rotating ball body, a locking mechanism is arranged at the bottom of the threaded pipe, and the locking mechanism acts between the rotating ball body and the fixed ball body to achieve relative locking of the rotating ball body and the fixed ball body. According to the spinal canal stenosis minimally invasive nerve protection decompression equipment, a second rotating block drives a threaded pipe to move downwards, an arc-shaped ball is driven to extrude two sets of symmetrical locking blocks, the position of a drag hook can be accurately controlled, and the complexity and injury risk of manual nerve traction are avoided; through the cooperation of the penetrating type cleaning pipe and the one-way nozzle, the operation area can be cleaned synchronously, the pollution hidden danger in the operation is reduced, and the multiple requirements for nerve protection, operation efficiency and operation precision in the minimally invasive scene are met on the whole.

Systems, devices, and methods for performing minimally invasive spinal procedures are described herein. The systems, devices, and methods may be used to percutaneously access the spinal canal and perform a spinal procedure. The systems and devices may integrate various instruments for performing the procedures, thus improving their ease of use, reducing procedural complexity, and minimizing procedure time.

The invention discloses a fetal image parameter automatic extraction system for spinal cord neural tube malformation screening, and relates to the technical field of medical image processing, and the system comprises a fetal spine collection module which is used for collecting fetal spine structure data, and carrying out the preprocessing of the collected data; the fracture structure identification module is used for constructing a fracture boundary point set, carrying out quantitative evaluation on the complexity of a fracture geometric structure and judging the complexity level of fracture boundary points; the fissure position correction module is used for quantifying the deviation degree of the fissure scale relative to the spinal canal size and executing position correction operation in combination with the complex grade; and the structure anomaly analysis module is used for performing quantitative evaluation on the sudden change intensity of the ridge crack geometric structure and generating a ridge crack basic parameter set and a ridge crack image structured analysis data set. The problems that in existing fetal spine image processing, fracture boundaries cannot be accurately extracted, so that fracture structure judgment is unstable, and spinal cord neural tube malformation screening lacks a reliable quantization parameter basis are solved.

A needle guide device (20) is provided for guiding insertion of a needle (22) between vertebral bones into a spinal canal. A handheld housing (30) defines a distal skin-contact surface (34), a user handle (36), and a needle guide passage (24) between the distal skin¬ contact surface (34) and a proximal surface (38) of the user handle (36), through which the needle (22) is insertable along an axis (40) of the needle guide passage (24). Ultrasound transducers (32) are arranged in the handheld housing (30) radially outside the needle guide passage (24) at respective angular locations (42) around the axis (40), and oriented to emit and receive ultrasound energy through the distal skin-contact surface (34). Visual indicators (50), corresponding to the ultrasound transducers (32), are arranged on the user handle (36) at respective angular locations (44) around the axis (40) corresponding to the angular locations (42) of the ultrasound transducers (32), and indicate, for the corresponding ultrasound transducers (32), respectively, whether the received ultrasound energy was reflected by bone or soft tissue. Other embodiments are also described.

The invention discloses a multi-modal fusion spinal region puncture positioning method and system based on deep learning. The method comprises the following steps: acquiring a spine image containing a puncture part, and inputting the spine image into a trained image segmentation model to obtain an image segmentation result; inputting an image segmentation result into a trained target recognition model for target recognition to obtain target region information; obtaining two-dimensional slice data based on the spine image, converting each pixel point of the two-dimensional slice data into a three-dimensional voxel, and extracting a surface geometric model to obtain a three-dimensional reconstruction model; performing information enhancement and alignment on the model and a real-time ultrasonic sequence through a specific structure to generate a high-fidelity enhanced real-time spine model image; based on the real-time model, the optimal puncture path, angle and depth are intelligently recommended in combination with a preset puncture type. The method can accurately provide a puncture point and recommend a puncture path, improves the success rate of intraspinal puncture of a complex patient, and reduces the probability of occurrence of adverse events.

The application discloses an anesthetic puncture auxiliary positioning method and relates to the technical field of medical image processing. The method comprises the following steps: acquiring multi-modal image data of an anesthetic region, performing image synchronization and fusion on the multi-modal image data; dividing the fused multi-modal comprehensive image into a plurality of image blocks according to a preset number, and calculating the gray dynamic change degree of each image block; removing noise and enhancing features of each image block based on the gray dynamic change degree of each image block; generating an accurate three-dimensional model of a spinal canal region by using the processed multi-modal image data through volume rendering, and displaying the three-dimensional model in real time through an augmented reality device; labeling important anatomical structures on the generated three-dimensional model, and calculating an optimal puncture path that avoids key structures in the three-dimensional space by using an A* algorithm. The application improves the accuracy and operability of anesthetic puncture auxiliary positioning through multi-modal image fusion, three-dimensional reconstruction and path planning.

The invention aims to provide a method and system for automatically planning a bony decompression path of thoracolumbar spinal stenosis, and relates to the technical field of biomedical volume data set segmentation, decompression targets of thoracolumbar spinal stenosis and preoperative image data are combined, and a standardized decompression range is automatically formulated; taking the anatomical details as a planning path reference, and formulating a decompression path of a spinous process tip point C, a lower marginal point P1 in the left upper vertebral pedicle, a lower marginal point P2 in the right upper vertebral pedicle, an upper marginal point S1 in the left lower vertebral pedicle and an upper marginal point S2 in the right lower vertebral pedicle in sequence; the precision and the safety of the operation are improved, and the clinical application value is remarkable.

The utility model discloses an artificial ligamentum flavum complex which comprises an artificial ligament and two fixing seats, and the two ends of the artificial ligament are fixedly connected with the two fixing seats respectively. Screw holes are formed in the two fixing seats, the two fixing seats are fixedly connected with the spine by installing screws into the respective screw holes, and the bone contact surfaces at the bottoms of the two fixing seats are provided with micropore structures. When the artificial ligamentum flavum complex is installed on the spine, the artificial ligamentum flavum complex can replace the cut ligamentum flavum to maintain the mechanical stability of the spine and cover the dura mater to reduce postoperative dura mater scars. Therefore, the artificial ligamentum flavum complex can replace ligamentum flavum removed in the operation, improve the stability of the spine of a patient, reduce postoperative spine instability, protect spinal canal duramater and nerves, reduce scar adhesion and improve the postoperative clinical effect.

The invention provides a protection device for preventing spinal nerve compression, and relates to the technical field of medical devices. The device comprises a protective sleeve and a fixing frame, the protective sleeve comprises a built-in arc plate and an external arc plate, one side, close to a spinous process, of a spine is provided with an operation opening leading to a spinal canal, the built-in arc plate is inserted between one side, away from the operation opening, of a spinal nerve and the inner wall of the spinal canal, and the external arc plate is connected with the internal arc plate. One end of the external arc plate is detachably connected with one end of the internal arc plate, and the other end of the external arc plate is detachably connected with the other end of the internal arc plate; the fixing frame is fixedly connected to the spine, and the protective sleeve is detachably connected with the fixing frame. The method has the effects of simplifying the operation process and reducing the operation difficulty.

The article to which the design relates is a spinal implant called a laminoplasty plate, which is used as a plate to fix the osteotomized vertebral arch during laminoplasty. The spinal implant is bent and deformed to fit the bone shape, and then inserted between the incised vertebral arches while fixing the upper and lower ends to the bone with screws. It has strength equal to or greater than that of the bone, and is designed to maintain the enlarged spinal canal until the bone in the bone groove (hinge) area heals.

The novel endoscope working sleeve suitable for reduction of the intra-spinal fracture block comprises a sleeve body, a pulling-up part is hinged to the front face of the sleeve body, a pulling-up connecting rod is further hinged to the lower face of the pulling-up part, and the pulling-up connecting rod penetrates out of the tail end of the sleeve body. According to the utility model, a blank in the market is filled with a simple structure, and the endoscope working sleeve can be used for rotating, prying and resetting a fracture block in a tube; particularly, the lifting part at the front part of the equipment can be subjected to pitching adjustment, and an anti-skid surface is arranged outside the lifting part; the angle of a fracture block can be adapted, and the anti-skidding effect is achieved in the turning and pulling process.

The invention discloses a ligamentum flavum hook knife for a single-side double-channel spine endoscope, and belongs to the field of spine surgical instruments. The hook knife comprises a knife handle, a knife rod, a knife head arranged at the far end of the knife rod and an inner core rod arranged in the knife rod. The knife handle is formed by hinging a fixed handle and a movable handle, the near end of the inner core rod is connected with the movable handle, and the far end is rotatably connected with the knife head. A tool bit containing groove is formed in the far end of the tool bar, and the tool bit is arranged in the tool bit containing groove and provided with a linear blade portion and an arc-shaped tool back. By holding and pressing the movable handle, the inner core rod is driven to be pushed forwards, the tool bit is forced to rotate and erect from the containing groove to an unfolded state that the linear blade part is perpendicular to the tool bar, and at the moment, the linear blade part is located on the side close to the tool handle. The device is simple in structure and safe to operate, is specially designed for a single-side double-channel endoscopic surgery, can realize rapid, stable and accurate excision of the ligamentum flavum, remarkably shortens the surgery time, and reduces the risk of intraspinal high pressure and related neurological complications caused by long-time flushing.

In the present invention, an IPG incorporates electrical resistivity monitoring with a reflectometry trigger. The IPG is configured to determine both optically and electrically if migration occurs between the electrodes. If the light intensity variation in the optical trigger is greater than an optical threshold value, then the system will pause stimulation and conduct a resistivity test. A resistivity test is also conducted periodically in the absence of the reflectometry trigger to verify that no lead migration has occurred. The stimulation signal is automatically adjusted if a variation in resistivity values is detected above a resistivity threshold value. The resistivity threshold value is set above the normal variation that occurs due to routine movement of the spinal cord in the spinal canal.

Provided herein is a method of improving or preserving respiration, speech, or swallowing in a patient, including delivering, with one or more implanted leads, an electrical stimulation to the patient's spinal canal, wherein the stimulation is delivered at a frequency, intensity, and for a length of time sufficient to improve or preserve respiration, speech, or swallowing in the patient.

The utility model discloses a bone trephine capable of positioning and guiding, which comprises a trephine body, a puncture needle, a guide needle and a guide tube, and the trephine body comprises a cylinder, a connecting rod and a handheld rotating handle; the connecting rod and the barrel are coaxially arranged and fixedly connected to the top of the barrel, and the handheld rotating handle is fixedly connected to the peripheral side of the top of the connecting rod; sawteeth are arranged at the bottom of the barrel; the guide pipe is coaxially arranged in the bottom of the barrel, and a plurality of blades are circumferentially distributed between the guide pipe and the barrel along the axis; the connecting rod is provided with a positioning hole penetrating into the cylinder from the top, and the positioning hole and the guide pipe are coaxially arranged; one end of the puncture needle is used for being driven into a bone drilling position, the guide needle is sleeved with the puncture needle, the trephine body is arranged on the guide needle in a sleeved mode through the guide pipe and the positioning hole, and bone drilling is conducted with the direction of the guide needle as a guide. The guide pipe is used for guiding the drilling direction of the bone trephine, so that a drilled bone is prevented from obliquely entering a spinal canal, and spinal cord injury or nerve center injury and pain of a patient are avoided.