78 results about "Nerve root" patented technology

The invention relates to the technical field of traditional Chinese medicine compositions, and discloses a traditional Chinese medicine composition for treating cervical spondylotic radiculopathy and a preparation method thereof. The traditional Chinese medicine composition is prepared from the following raw materials in parts by weight: 20 to 40 parts of radix puerariae, 5 to 25 parts of cassia twig, 20 to 40 parts of ramulus mori, 5 to 25 parts of notopterygium root, 20 to 40 parts of radix astragali seu hedysari, 20 to 40 parts of radix salviae miltiorrhizae, 5 to 25 parts of rhizoma chuanxiong, 5 to 25 parts of radix angelicae sinensis, 20 to 40 parts of radix paeoniae alba, 5 to 25 parts of radix clematidis, 5 to 20 parts of radix notoginseng, 2 to 10 parts of flos carthami, 5 to 25 parts of fructus chaenomelis lagenariae, 5 to 25 parts of earthworm, 20 to 40 parts of caulis spatholobi and 5 to 25 parts of pericarpium citri reticulatae. The traditional Chinese medicine composition disclosed by the invention is precise and reasonable in formula, standard and feasible in preparation process, free of any hormone, preservative and additive, and high in safety as natural raw materials are selected.

The present disclosure is directed to devices, kits, and methods for treating lumbar spinal stenosis by at least partially decompressing a compressed nerve root. The method can include identifying the compressed nerve root and percutaneously accessing a region of a lamina located adjacent to the compressed nerve root. The method can also include forming a channel through the region of the lamina, wherein the channel can be formed medial to a lateral border of the lamina. Further, the method can include expanding the channel in a lateral direction.

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 technology of the present invention is an inverted suspension spinal treatment device, including a support assembly, a vibration column, a bed board, and a limit assembly. The bed board is provided with a connection groove for installing the vibration column. The bed board and the vibration column are both connected to the support assembly. The vibration column is used to support and vibrate the spine. The limit assembly is connected to the support assembly and is used to support one end of the bed board. The action mechanism of the device of the present invention is that when the patient lies supine on the bed board, the vibration column supports the patient's spine, and through knocking and vibrating, the deformed spine, the compressed spinal cord sac, and the nerve roots can naturally recover, reducing or eliminating pain. By setting the limit assembly, when the bed board is tilted, the limit assembly is used to support the bed board, so that the bed board can adjust the tilt angle to meet the needs of the patient for changing different body positions.

The present invention pertains to a stenosis evaluation method implemented by a processor, comprising the steps of: acquiring a medical image by photographing the spine of an individual; dividing a region for evaluating spinal stenosis in the medical image by using a division model trained to divide the region for evaluating spinal stenosis by using the medical image as an input; and calculating, on the basis of the divided region, the size of a section in which spinal stenosis of the individual can be evaluated.

The application discloses a safe operation device suitable for spine minimally invasive surgery, which comprises a mirror-under power drill and an electric safety protection sleeve, wherein the handle of the mirror-under power drill and the drill are matched with the electric safety protection sleeve; the handle is connected with the drill, and the drill penetrates through the electric safety protection sleeve. The application provides a safe operation device suitable for spine minimally invasive surgery, which comprises a mirror-under power drill and a safety protection sleeve. When in use, the safety protection sleeve is directly fixed on the surface of the lamina to be removed, the mirror-under power drill can penetrate through the sleeve to complete the mirror-under grinding operation of the lamina, and the real-time lamina removal condition can be clearly seen through the end observation hole, so that the lamina is quickly removed while the nerve root is completely ensured not to be damaged.

The invention belongs to the field of biological medicine, and particularly relates to a composition for treating cervical spondylotic radiculopathy and application thereof. The composition disclosed by the invention is prepared from a mimosa pudica extract. The extract can promote M2 type polarization of microglial cells, and has protection and repair effects on damaged nerves.

The invention discloses a lumbar surgery AI dynamic simulation system and decision making method based on multi-modal data fusion, and belongs to the field of medical artificial intelligence, the technical scheme is that the system comprises a multi-modal data input interface, a dynamic modeling engine, a surgical decision making matrix and a three-dimensional comparison unit, and specifically, CT / MRI, electromyogram and gait mechanics data are fused; constructing a spinal canal 4D model through improved U-Net < 3 + >, and predicting a nerve root dynamic path by means of GCN-LSTM; and in combination with a lumbar stenosis type, matching an adaptive operation form, and generating a pre-operation and post-operation quantitative comparison report marked by three colors. A spinal canal-nerve-biomechanics dynamic correlation model is innovatively established, 217 L4-S1 segment anatomical variation templates are arranged in the model, and the anatomical variation adaptation rate reaches 92.3%. Clinical test results show that the operation time planned by the system is averagely shortened by 26 minutes, and the postoperative reoperation rate is reduced to 2.4%.

The nerve retractor comprises a first blade, a second blade, a first handle and a second handle, an annular plate is arranged at the near end of the first blade, the first handle is fixedly connected with the annular plate, the second blade is rotationally connected with the second handle on the annular plate, and the first handle is fixedly connected with the annular plate. The first handle and the second handle are both sleeved with handle sleeves. When the second handle gets close to the first handle, the second blade moves in the direction away from the first blade, and the through hole of the annular plate, the second blade and the first blade form a channel; the first blade is shorter than the second blade; a locking piece is arranged between the first handle and the second handle and used for locking the positions of the second handle and the first handle. The double-blade distraction structure is adopted, the problem that the force exerting direction is not easy to grasp during distraction is effectively solved, meanwhile, the working channel formed by the annular plate and the two blades is good in stability, nerve roots can be effectively distraction, and meanwhile instrument operation of a surgeon is not affected.

Dilator for percutaneous spinal surgery which comprises a main elongate dilator body and an elongate shield for protecting the nerve root, the main dilator body and the shield each comprising mutually complementary contact surfaces and in which the main body and the shield define a transverse cross section of the dilator, it being possible for the main body and the shield to slide one relative to the other along an axial axis of the dilator, the dilator also comprising a through-hole for receiving a guide rod, characterised in that said hole is placed eccentrically with respect to a combined transverse cross section of the main body and of the shield.

The present disclosure relates generally to a device and method for aiding in the repair of a dural tear. According to example embodiments, the device is placed substantially within a dural sac interior to a dural tear. The device provides a shield that prevents the underlying nerve roots (including rootlets) of the spinal cord from intruding into the torn area and prevents them from being injured during the repair procedure. The device also redirects cerebrospinal fluid from the area, which aids the surgeon in viewing the procedure site during suturing and / or repair.

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 present invention relates to a neuromodulation / neurostimulation system (10) for the treatment of spasticity in a mammal, said system (10) comprising: —at least one control unit (12) configured and arranged to provide stimulation data, and—at least one stimulation unit (14), operatively connected to the at least one control unit (12), said at least one stimulation unit (14) being configured and arranged to deliver epidural electrical stimulation to the spinal cord of said mammal, according to said stimulation data, wherein the at least one stimulation unit (14) includes a biocompatible implantable lead (18) configured and arranged to cover at least a portion of the spinal cord of said mammal to deliver epidural electrical stimulation to the dorsal roots innervating the spastic muscles to target neuronal circuitry responsible for spastic episodes.

The invention relates to a spine intervertebral dilator which comprises a main support, a fixed supporting arm, a sliding supporting arm, a distraction blade and a control module, a biological impedance sensor array is integrated on the working surface of the distraction blade, and the biological impedance sensor array conducts real-time induction at the moment of touching nerve roots by detecting the electrophysiological characteristic difference of contact tissue; the control module receives impedance data of the biological impedance sensor array in real time, and when the biological impedance sensor array detects an impedance threshold value, the self-locking alarm module is triggered immediately and is self-locked; according to the spine intervertebral dilator, tissue electrophysiological characteristic differences are detected in real time through the integrated biological impedance sensor array, accurate recognition of nervous tissues is achieved in combination with multi-sensor fusion and a deep learning algorithm, a self-locking mechanism is triggered immediately when nerve roots are touched, and the spine intervertebral dilator is used for distraction of the nerve roots. The device has the advantages that nervous tissue is accurately recognized, real-time self-locking protection is achieved, and the risk of nerve injury in the operation is reduced.

The present disclosure is directed to devices, kits, and methods for treating lumbar spinal stenosis by at least partially decompressing a compressed nerve root. The method can include identifying the compressed nerve root and percutaneously accessing a region of a lamina located adjacent to the compressed nerve root. The method can also include forming a channel through the region of the lamina, wherein the channel can be formed medial to a lateral border of the lamina. Further, the method can include expanding the channel in a lateral direction.

A pedicle replacement device is designed to both replace the pedicle through osseointegration and protect the nerves and surrounding tissue from injury by pedicle screws or other surgical devices and instruments. The implant is configured to shield a fixture, reduce nerve root irritation, and diminish loosening of the fixture, when the fixture is implanted into the void of a target site. The implant includes features for stabilizing and securing the implant within the void at the target site. For example, in one embodiment, the implant includes counterclockwise threads that stabilize the implant against rotational and extractive forces that could disturb the implant.

Systems, devices, and methods for transvascular ablation of target tissue. In some examples, the devices and methods can be used for splanchnic nerve ablation to increase splanchnic venous blood volume to treat at least one of heart failure and hypertension. For example, the devices disclosed herein can be advanced in an endovascular manner to a target blood vessel in a thoracic splanchnic nerve (TSN) region, such as a splanchnic greater nerve (GSN) or TSN nerve root. Methods of treating heart failure, such as HFpEF, by endovascular ablation of thoracic splanchnic nerves to increase venous volume and reduce pulmonary blood pressure are also disclosed.

A retractor, preferably a nerve root retractor, comprising three components: an upper portion, a mid-portion, and a lower portion. The nerve retractor is designed to eliminate the requirement of having a person hold the retractor tool during a surgical procedure. The nerve retractor can be secured to a portion of the anatomical structure involved with, or near, the surgical procedure site, and utilizes an actuating device which allows the user to manipulate the angle of orientation of the arm portion or anatomical structure retractor portion. The anatomical structure retractor may comprise a modular anatomical structure engaging member / head, allowing the surgeon to use multiple or differently configured structure engaging members / heads during a procedure as needed.

The present invention discloses a CT image segmentation method for spinal surgery, which relates to the technical field of medical image processing, and comprises the following steps: obtaining a spinal CT image of a patient, and preprocessing the spinal CT image; using a vertebral space detection method to detect the vertebral space area of ​​the spine in the preprocessed CT image, and automatically segmenting each vertebra based on the vertebral space area information to obtain a preliminary segmentation result of the vertebra; extracting local texture features of intervertebral discs and nerve roots in the vertebral space area, and classifying them through a classifier to generate preliminary segmentation results of the intervertebral discs and nerve roots; rigidly and non-rigidly registering the preliminary segmentation results of the vertebrae, intervertebral discs and nerve roots with a standard three-dimensional model, and identifying abnormal areas in the segmentation; and accurately segmenting a variety of structures by extracting local texture features of intervertebral discs and nerve roots and combining them with a support vector machine classifier.

The utility model provides a semi-automatic nerve root draw hook for lumbar interbody fusion surgery, which comprises a hook rod, the hook rod is integrally formed by a telescopic hook rod and a hook clamp, the hook rod is an inequilateral U-shaped rod, the long side of the U-shaped rod is connected with a sub-rod, and the sub-rod is stretched by changing the position of the sub-rod on the long side of the U-shaped rod; the hook clamp is a short edge of the U-shaped rod; a hook mouth is arranged at the end, away from the hook rod, of the auxiliary rod and is a duckbilled hook piece, the hook piece is of an L-shaped structure, and the included angle of the L-shaped structure is an obtuse angle. According to the utility model, the telescopic hook rod is adopted, so that the height can be effectively adjusted, and the problem that spinous process heights of different patients with different body types are different is solved; the duckbilled hook sheet with an obtuse included angle is adopted, so that a larger surgical field is provided; the hook clamp can be effectively fixed to the spinous process, assistants can be liberated, more operation space is guaranteed for an operator, and the operation certainty is improved.

The invention discloses a plaster for treating cervical spondylosis and a preparation method thereof, and relates to the technical field of traditional Chinese medicine external preparations. According to the present invention, with the application of the targeted transdermal system, the transdermal rate of the ligustrazine and other active components can be increased to 68-75% through the experimental verification by using the borneol + menthol + azone / propylene glycol composite permeation enhancing agent, and the traditional Chinese medicine such as radix aconiti, radix aconiti agrestis, garden balsam stem and the like is subjected to gradient extraction, and is combined with the borneol / menthol / azone composite permeation enhancing system and the medical gel matrix to prepare the target transdermal system; according to the plaster, the medicine is directionally conveyed to diseased tissues through the skin, the liver and kidney toxicity problem of traditional oral medicine is avoided, the transdermal absorption rate is increased to 70% or above, and the plaster has the triple effects of resisting inflammation, easing pain and improving microcirculation and is suitable for long-term treatment of nerve root type and neck type cervical spondylosis.

Systems, devices, and methods for transvascular ablation of target tissue. The devices and methods are for splanchnic nerve ablation to increase splanchnic venous blood capacitance to treat at least one of heart failure and hypertension. The devices are advanced endovascularly to a target vessel in the region of a thoracic splanchnic nerve (TSN), such as a greater splanchnic nerve (GSN) or a TSN nerve root. Also disclosed are methods of treating heart failure, such as HFpEF, by endovascularly ablating a thoracic splanchnic nerve to increase venous capacitance and reduce pulmonary blood pressure.

The present invention discloses a posterior lumbar zero-profile fusion system and a method for using the same. The fusion system includes a fusion device and an impactor; the impactor includes a connecting seat, which is detachably connected to the fusion device; at least two inclined locking holes are provided on the front side of the fusion device; the axial height of the connecting seat is more than 1.5 cm; the connecting seat is provided with at least two inclined through-channels, and the outlet end of each channel corresponds to a locking hole; the angle between the channel axis and the connecting seat axis is 30 to 35 degrees. According to the present invention, it is only necessary to retract nerve tissues such as nerve roots and dura mater sacs once, and after the fusion device is placed between vertebrae by the impactor, the connecting seat is not directly removed. In the process of screwing in the locking screw, the locking screw and the screwdriver are completely in the connecting seat and the fusion device, and do not contact the surrounding nerve tissue to avoid damaging the surrounding nerve tissue of the vertebrae. Only one posterior spinal canal incision is required, which can greatly reduce surgical costs, surgical risks, surgical trauma and surgical time.

The utility model discloses a kind of nerve root retractor for fixed spine surgery, nerve root retractor is by retractor head, retractor body and retractor handle constitute, retractor handle and retractor body are 90 degrees angle mode setting, the bottom of retractor body is equipped with retractor head, the middle of retractor handle is equipped with through-hole, through-hole is equipped with insert, compared with existing handheld retractor, the utility model design can fix retractor, with through-hole in the middle of retractor handle, through-hole is equipped with insert, in operation, the utility model retractor can be fixed on spinous process of spine by insert tightening, completely need not doctor or assistant handheld retractor, using fixed mode can solve the situation of sliding or moving, guarantee normal operation.

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.

In various embodiments, methods are provided to improve motor function, and / or to improve motor control, and / or to improve sensory function, and / or to reduce pain in subjects with nerve root palsies (e.g., radiculopathies including, but not limited to cauda equina syndrome). In certain embodiments, methods are provided for the magnetic stimulation of the spinal cord or regions thereof to improve motor function of upper and / or lower extremities in subjects with impaired extremity motor function due to spinal cord or brain injury or pathology.

The invention provides an energy output control method and system based on a composite catheter. The energy output control method comprises the steps that a radio frequency electrode is pushed to the far end of the composite catheter; radio frequency energy is output to the target intervertebral disc protrusion tissue through the radio frequency electrode, so that the size of the target intervertebral disc protrusion tissue is reduced, and a cavity is formed; normal saline is injected into the cavity, and the far end of the optical fiber is pushed to the cavity through an optical fiber channel in the composite catheter; laser energy is output to the fiber ring near the cavity through the optical fiber to solidify the fiber ring near the cavity. The cavity formed by the target intervertebral disc protrusion tissue can separate the nerve root from the target intervertebral disc which is not ablated, so that the compression of the target intervertebral disc protrusion tissue on the nerve root can be obviously reduced; the heat effect of the laser can be utilized to act on the fibrous ring of the collagen, so that the fibrous ring of the collagen is shrunk and thickened, equivalently, the fibrous ring is reinforced, and the recurrence of the target intervertebral disc protrusion is effectively prevented.

The utility model discloses a kind of guiding formula arc intervertebral fusion cage sets, it includes: shaft sleeve, intervertebral fusion cage and guide needle, the shaft sleeve includes: first blocking part and second blocking part, the intervertebral fusion cage is housed in the shaft sleeve, the intervertebral fusion cage is configured to rotate radially from the shaft sleeve, the guide needle is configured to pass through the intervertebral fusion cage to guide the intervertebral fusion cage to target position, when carrying out spinal interbody fusion cage fusion, intervertebral fusion cage can be guided to the vertebral body opening of target, is implanted with the rotation to comply with the arc of vertebral body, to avoid injury surrounding nerve root or soft tissue, and reduce the opening area required for operation, reach the requirement of wound range minimization.

This utility model discloses a nerve root retractor for UBE surgery, relating to the field of auxiliary instruments for minimally invasive spinal surgery. In lumbar discectomy, there are shortcomings in the procedure where an assistant must hold a nerve retractor to retract the nerve during disc removal, which is not always secure and can easily lead to operator fatigue. Improper operation can also easily cause nerve root damage to the patient. This utility model provides a nerve root retractor for UBE surgery, including a Kirschner wire with a retractor plate near its front end and a handle at the upper end. The Kirschner wire includes a pointed portion and a straight rod portion, with the retractor plate positioned near the pointed portion of the straight rod portion. The handle includes a vertically positioned operating rod and a positioning rod, with the positioning rod aligned along the axial direction of the Kirschner wire. A positioning block is provided on the positioning rod.