22 results about "Articular processes" patented technology

The present invention discloses a flexible endoscope robot for minimally invasive intervertebral disc surgery, which relates to the technical field of minimally invasive intervertebral disc surgery. The present invention includes a flexible pipeline, and a negative pressure extraction tube and a flushing tube are arranged inside the flexible pipeline. A support tube is arranged at the insertion end of the negative pressure extraction tube, an inner sliding sleeve is slidably connected inside the support tube, a driving rope reel is rotatably installed inside the inner sliding sleeve, and multiple groups of crushing thin ropes are arranged on the outer side of the driving rope reel. The whole of the present invention adopts a flexible endoscope robot. When the puncture needle reaches the position of the intervertebral foramen, there is no need to gradually expand the outer opening of the intervertebral foramen level by level, and there is no need to resect part of the articular process joint or resect the lamina. After the flexible endoscope robot passes through the puncture needle, it directly bends into the intervertebral foramen, and then cooperates with the use of the clamping jaw and the negative pressure extraction tube to grab and aspirate the intervertebral disc herniation, which can reduce the damage to the bone joints, enhance the stability of the spine, and reduce the recurrence rate of the intervertebral disc.

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.

The invention relates to a method, system and spine processing device, for loosening meat from a spine portion of a split carcass part of a four-legged slaughter animal, comprising a positioning device for positioning the carcass part; a cutting device for loosening the meat, by cutting, from spinous process parts and from articular processes, the cutting device comprising a first cutter for cutting along the spinous process parts; a second cutter for cutting along an outer side of the articular processes; a third cutter for cutting along an upper side of the articular processes. The second cutter is movable transverse to the cutting direction, relative to the first cutter. The cutting device has an urging element for urging the second cutter towards the first cutter in the transverse direction while cutting, such that the second cutter cuts along the outer side of the articular processes.

The invention relates to a method, system and spine processing device, for loosening meat from a spine portion of a split carcass part of a four-legged slaughter animal, comprising a positioning device for positioning the carcass part; a cutting device for loosening the meat, by cutting, from spinous process parts and from articular processes, the cutting device comprising a first cutter for cutting along the spinous process parts; a second cutter for cutting along an outer side of the articular processes; a third cutter for cutting along an upper side of the articular processes. The second cutter is movable transverse to the cutting direction, relative to the first cutter. The cutting device has an urging element for urging the second cutter towards the first cutter in the transverse direction while cutting, such that the second cutter cuts along the outer side of the articular processes.

The invention relates to the technical field of orthopedic surgical instruments, and discloses an abrasive drill device with a radio frequency function, which comprises a grinding mechanism, a handle convenient to operate, a rotating motor arranged at one end of the handle, a connecting block arranged at the output end of the rotating motor, a loop electrode arranged on the surface of the connecting block, and an insulating layer arranged on the surface of the loop electrode, the working electrode is arranged on the surface of the insulating layer; the radiofrequency ablation mechanism comprises a connecting pipe body fixedly mounted at the output end of the rotating motor, a conductive slip ring fixedly mounted between the handle and the rotating motor, a power line electrically connected with the insulating layer, and a return line electrically connected with the loop electrode. The traditional bone grinding-hemostasis operation which needs to be carried out step by step is fused into one surgical instrument, so that the operation of frequently replacing a grinding drill and a radio-frequency electric knife in an operation is avoided, and the continuity and the efficiency of the operation are greatly improved; when a vertebral plate, a zygopophysis and other bony structures are treated, the device can conduct bone grinding while conducting radiofrequency ablation hemostasis in real time.

The invention discloses a vertebral pedicle punching device, and relates to the technical field of medical instruments. The sleeve is provided with a cavity extending and penetrating in the length direction of the sleeve. One end of the cone rod is a cone head, the other end of the cone rod is a handle, the cone rod is arranged in the cavity in a penetrating mode and makes contact with the inner circumferential face of the cavity, and the cone rod can stretch out and draw back relative to the sleeve so as to punch holes in the vertebral pedicle; the positioning assembly comprises a positioning block, one end of the positioning block is provided with a connecting part fixedly connected with the peripheral face of the sleeve, and the other end of the positioning block is provided with a positioning part capable of abutting against a clamping structure limited by the transverse process and the superior zygopophysis. The pedicle screw can provide an accurate positioning function, and the success rate of internal fixation of the pedicle screw and the operation efficiency are improved.

The invention relates to the technical field of medical equipment, in particular to lumbar vertebral plate windowing equipment and an operation method.The lumbar vertebral plate windowing equipment comprises a drill bit and further comprises a transmission cylinder and an elastic supporting piece, one end of the transmission cylinder is open and is of a hollow structure, and the drill bit is embedded into the transmission cylinder and movably connected with the transmission cylinder and can move in the transmission cylinder in the axial direction of the drill bit; an insertion hole is formed in the closed end of the transmission cylinder, an insertion rod matched with the insertion hole is fixedly connected to the end of the drill bit, and the end, back to the drill bit, of the insertion rod extends in the axial direction of the drill bit to be inserted into the insertion hole and is in single-degree-of-freedom sliding fit in the axial direction of the drill bit; one end of the elastic supporting piece abuts against the inserting rod, and the other end of the elastic supporting piece abuts against the plane, opposite to the opening, of the inserting hole. The problem that in the prior art, after a drill bit is disengaged from the surface of the articular process, the risk that the drill bit rotates to grind the spinal cord or nerve root exists is solved.

The utility model discloses a visual spine endoscope fusion channel device, which relates to the field of medical equipment and comprises a soft tissue expansion rod, a sleeve, a first fusion channel and a second fusion channel. When the second fusion channel is used, two arc-shaped blocking faces are fixed to the two sides of the end, located in the body of the patient, of the second fusion channel respectively, and the blocking faces are used for separating and blocking the neurodural mater and the export nerve root to the outer side of the second fusion channel. The soft tissue expansion rod, the sleeve, the first fusion channel and the second fusion channel which are designed to be of an oval structure are different from an existing coaxial endoscope system, in the operation process, the area of an incision formed in the body of a patient is smaller, and the operation space is larger; under the direct view of an endoscope camera system, conventional operation tools such as vertebral plate forceps are used for biting and removing bone tissues such as vertebral plates and zygopophysis for windowing, so that the operation time is greatly shortened, the situation that channels with different sizes are replaced for multiple times is avoided, and multiple injuries to soft tissues of a patient caused by repeated replacement of the channels are avoided. The replacement frequency is reduced, and the surgical operation time is shortened.

The utility model relates to a tool assembly for injecting bone cement, which is characterized in that an outer tube extends into a zygapophysis along the length direction of a vertebral pedicle, an inner tube with bone cement in a second channel extends into a first channel of the outer tube and extends to a part, needing to be injected with the bone cement, of the zygapophysis, a push rod extends into the second channel, and the push rod is pushed, so that the bone cement is injected into the zygapophysis. And the push rod pushes the bone cement in the second channel, so that the bone cement flows out along the liquid outlet hole. And under the action of the push rod, the bone cement flows out along the forming direction of the liquid outlet hole. One part of the bone cement permeates in the length direction perpendicular to the vertebral pedicle, and the other part of the bone cement permeates in the forming direction of the liquid outlet holes, so that the bone cement in the second channel permeates and disperses in the articular process in the forming direction of the liquid outlet holes; therefore, the bone cement from the vertebral body to the vertebral pedicle and finally to the articular process forms a three-in-one structure, so that the stability of the bone cement is enhanced.

The utility model relates to medical auxiliary instrument especially adjustable intervertebral foramen forming stabilizing device, including horizontal pole, rotating component, support rod, lower hanging rod, angle adjusting assembly and sleeve etc. The utility model is provided with support rod, horizontal pole, lower hanging rod, rotating component and angle adjusting assembly, is fixed through a plurality of bolts, need not doctor manual fixed ring saw to be able to stably, safely, effectively and grind off upper articular process ventral side, thereby good realization intervertebral foramen forming, through height adjustment and multi -angle adjustment, can adjust the position and angle of sleeve according to patient demand and operation requirement, improve the applicability of this stabilizing device.

The utility model discloses a kind of pulling distraction devices for lumbar UBE operation, it is related to medical instrument technical field, including left forceps body and right forceps body. One end of left forceps body is equipped with in-vivo extension piece, in-vivo extension piece is connected with placement part, and placement part is equipped with bone surface embedding body;Right forceps body is rotatably connected with left forceps body and can be relatively fixed, one end of right forceps body is equipped with pulling part, and pulling part is connected with distraction extension body. Among them, bone surface embedding body is located at the side of placement part away from right forceps body, and distraction extension body is set to the side away from left forceps body. The above-mentioned pulling distraction device for lumbar UBE operation, the fixed part of left forceps body is used to place in the upper vertebral plate and articular process joint medial bone surface polished by abrasive drill, and is embedded into bone surface by bone surface embedding body, and the distraction extension body of right forceps body is used to extend into ventral running nerve root, and the nerve root and dural sac can be appropriately pulled apart by the pulling part of right forceps body, expose operation visual field, without the help of assistant.

The invention relates to the technical field of medical zygopophyseal joint fusion devices, and discloses a novel zygopophyseal joint elastic fixing device which comprises a W-shaped connecting piece and a screw assembly, the W-shaped connecting piece is of a symmetrical wavy structure and comprises three vertexes and two grooves, transition areas between the vertexes and the grooves are connected through arcs, and the screw assembly is connected with the W-shaped connecting piece. A through hole channel is formed in the W-shaped connecting piece, the screw assembly can penetrate through the through hole channel to fix the W-shaped connecting piece, the W-shaped connecting piece is made of polyether-ether-ketone materials, and the screw assembly is made of medical-grade titanium alloy. The W-shaped connecting piece is made of a polyether-ether-ketone material, the elasticity modulus of the W-shaped connecting piece is close to that of a skeleton, the lumbar vertebra is allowed to elastically move within the range of + / -3 degrees to + / -5 degrees through the symmetrical wavy structural design, the problem that the articular process joint activity capacity is lost due to a traditional rigid fusion cage is solved, and natural mechanical transmission of the spine is maintained; and the degeneration risk caused by stress concentration of adjacent sections is effectively reduced.

This application relates to a set of intervertebral foramen rapid prototyping instruments for reaming and forming the intervertebral foramen on the ventral side of the superior articular process of the lower vertebra. The set includes: a tongue-shaped rod, whose head extends into the spinal canal through the intervertebral foramen and abuts eccentrically against the ventral side of the superior articular process; a fixing needle, which penetrates the middle hole of the tongue-shaped rod along the axial direction of the tongue-shaped rod and is screwed into the superior articular process by rotation; a protective sheath, which slides into the intervertebral foramen along the outside of the tongue-shaped rod and pushes aside the surrounding neurons; a trephine, which is sleeved outside the tongue-shaped rod and is located between the tongue-shaped rod and the protective sheath, and feeds along the axial direction of the tongue-shaped rod, rotates and cuts through the superior articular process, and separates a bone block that is threadedly fastened to the fixing needle in one step. The fixing needle takes away the bone block in the reverse direction to expand the intervertebral foramen, and the arthroscope probes into the spinal canal through the intervertebral foramen for observation. Thus, one-step forming of the intervertebral foramen reaming is achieved, and at the same time, damage to the surrounding neurons is avoided.

The invention discloses a minimally invasive ultrasonic guided percutaneous rabbit intervertebral disc degeneration modeling mode, and relates to the technical field of ultrasonic modeling, and the method comprises the following steps: fixing an experimental rabbit on an operation table in a prostrate manner in an anesthetic state, and raising the abdomen to maintain lumbar lordosis; an ultrasonic probe is used for scanning along the longitudinal axis of the spine, and the L5 transverse process is recognized upwards from the highest point of the crista iliaca; positioning an L5 / 6 intervertebral disc gap in the cross section ultrasonic image by taking the identified L5 transverse process as an anatomical reference; a stable high-echo target spot formed by fascia is confirmed in the intersection area of the L5 transverse process head side and the superior articular process ventral side; marking a puncture needle insertion position on the skin surface according to the high-echo target spot; percutaneous puncture is conducted under ultrasonic real-time guidance along the marked position, the needle tip slides into the L5 / 6 intervertebral disc along the superior zygopophysis bone surface, and it is confirmed that the needle tip is located in the nucleus pulposus through viscous resistance and the unlocking hand feeling; the needle tip is controlled to stay in the intervertebral disc for 10 seconds, the puncture depth is kept at 5 mm, and mechanical disturbance is completed to induce the intervertebral disc to retreat.

The application discloses a spine lamina decompression surgery positioning method based on point cloud feature extraction, comprising the following steps: obtaining the 3D point cloud of the open back of a person to be positioned; converting the 3D point cloud into a correction coordinate system to complete posture correction; performing feature segmentation on the corrected 3D point cloud to separate it into two blocks containing target regions; for each block, small batch sampling and interpolation mapping are used to obtain the position of the articular process; and based on the position of the articular process, the spine lamina decompression surgery positioning result of the person to be positioned is obtained. The spine surgery area and the surrounding surface contour three-dimensional model are obtained through a 3D structured light camera, then the target position of the surgery is directly identified and positioned in the three-dimensional model, and the method has the advantages of no radiation, high speed, low cost and the like, and solves the problem that the current spine robot surgery must be implanted with a mark and multiple CTs are performed to position.

The invention provides an arc-shaped lumbar puncture trocar for treating lumbar disc herniation through low-temperature plasma nucleus pulposus ablation. A needle outer tube is integrally formed by a tube front section, a tube middle section and a tube rear section, and a penetrating type working channel is formed in the center of the needle outer tube; the front end of the pipe arc-shaped section extends to be connected with the pipe parallel section, and the rear end of the pipe arc-shaped section extends to be connected with the pipe middle section; a tube inclined surface is arranged on the front surface of the arc-shaped recess at the front end of the tube parallel section and extends towards the tube back surface to form a needle tip; the far end of the tube slope is designed into a sharp triangle, and the near end of the tube slope is designed into an ellipse; the needle handle is arranged at the rear section of the tube, the syringe connector is arranged at the tail of the needle handle, and the working channel starts from the syringe connector to the tube slope. According to the invention, the design is reasonable, the operation is safe, the needle tip can bypass the zygopophysis to accurately reach the target spot of the lumbar disc protrusion, the soft low-temperature plasma cutter head is placed through the trocar to realize ablation, the compression of the protrusion on the adjacent nerve root and dural sac is relieved, and the clinical symptoms are eliminated.

The present application belongs to the technical field of medical devices, and provides a guide assembly for a superior articular process approach of a lumbar vertebra and an operation method thereof. The guide assembly comprises a guide rail, a guide needle, a bone removal assembly and a working assembly. The guide rail is provided with a guide track. The guide needle is slidably arranged in the guide rail and is used to establish an initial positioning path to the intervertebral space. The initial positioning path is parallel to the guide track. The guide rail is adapted to move along the initial positioning path. The bone removal assembly is detachably connected to the guide rail to remove bone mass of the superior articular process approach and form a bone window. The working assembly comprises a working sleeve which is adapted to be connected to the guide rail to form a working channel after the bone removal assembly is removed. The guide needle establishes the initial positioning path to the intervertebral space to confirm the position of the guide rail, reduces the number of repeated verification and adjustment under fluoroscopy, and thus reduces the radiation exposure dose of the patient. The bone removal assembly and the working assembly connected to the guide rail can be performed according to the guide track, and the possibility of path loss is reduced.

The utility model provides a special sleeve assembly for robot-assisted foramen intervertebrale forming, and belongs to the technical field of medical instruments. The special sleeve assembly for robot-assisted foramen intervertebrale forming comprises an outer limiting sleeve, a working sleeve and a positioning sleeve, the outer limiting sleeve is arranged on a surgical robot arm of a surgical robot, the working sleeve is arranged in the limiting sleeve in a penetrating mode, and the positioning sleeve is arranged in the working sleeve in a penetrating mode. The lower end of the positioning sleeve is provided with a containing groove suitable for containing the superior zygopophysis, and the axis of the positioning sleeve is provided with a receding through hole suitable for the positioning guide wire to penetrate. According to the sleeve assembly special for robot-assisted foramen intervertebrale forming, the containing groove is formed in the lower end of the positioning sleeve, when the positioning sleeve is adopted for positioning, the containing groove covers the outer side of the superior zygopophysis, the tail end of the positioning sleeve abuts against the lower portion of the superior zygopophysis, the superior zygopophysis can be conveniently positioned, the positioning stability is improved, and the working efficiency is improved. The positioning time is shortened, and the operation efficiency is improved.

The application relates to a guide for placing a spinous process lamina articular process screw, which comprises a second arc-shaped rod, a first arc-shaped rod, a first positioning rod, an auxiliary rod and a sighting rod, a first connecting block is connected to the first arc-shaped rod, a second connecting block is slidably connected with the second arc-shaped rod, a third connecting block is slidably connected with the second arc-shaped rod, a fourth connecting block is slidably connected with the first arc-shaped rod, the end of the sighting rod towards the inner side of the second arc-shaped rod can intersect with the end of the auxiliary rod towards the inner side of the second arc-shaped rod at point a, the point a is the center of the second arc-shaped rod, the extension line of the central axis of the sighting rod intersects with the end of the first positioning rod towards the inner side of the second arc-shaped rod at point b, and the point b is the center of the first arc-shaped rod. The guide for placing the spinous process lamina articular process screw can accurately determine the piercing direction of the spinous process lamina articular process screw, the guide is not easy to swing during the operation process, the operation precision is high, the guide is easy to use for clinical doctors with insufficient experience, and the guide has extremely high clinical application value.

Title: System for performing a spinal arthrodesis via the posterior approach at a facet joint The system for performing a spinal arthrodesis via the posterior approach at a facet joint comprises an implant device (1) and its retaining means (2). The implant device (1) is in the form of an element comprising an opening (12) for receiving a bone graft, and is intended to be introduced into a cavity (5) previously made at the location of the facet joint to be immobilized, while the retaining means is in the form of a compression screw (2), its pitch at the proximal part (21) being less than that of the distal part (20), and the transverse dimensions of which allow it to pass into the opening (12), while the proximal (21) and distal (20) parts are each screwed into one of the articular processes to be connected.Figure for abstract: Fig. 1.