259 results about "Spinal operation" patented technology

An expandable interbody device used as a prosthesis during spinal surgery. The expandable interbody device is configured to be inserted into the space between spinal discs to provide stability. The expandable interbody device includes a drive block, a top endplate, a bottom endplate, a first drive arrangement, and a second drive arrangement; the first drive arrangement includes a first drive screw, a first left side slide, a second left side slide, a first upper left side linkage, a second upper left side linkage, a first lower left side linkage age and a second lower left side linkage; and the second drive arrangement includes a second drive screw, a first right side slide, a second right side slide, a first upper right side linkage, a second upper right side linkage, a first lower right side linkage and a second lower right side linkage.

The invention discloses an angle-adjustable spine blood coagulation electrode which comprises a tool bit assembly, a fixed body and a movable wire clamp. The tool bit assembly comprises an insulating rod, an inner tube and an outer tube, two electrodes which are insulated and separated are arranged at one end of the insulating rod, each electrode is connected with a conductive wire, and each conductive wire penetrates through the other end of the insulating rod and is connected with a cable; a first cavity and a second cavity which are communicated are formed in the fixing body, a steel pipe chuck and a screw cap are fixed to the other end of the first cavity, and a first handle and a second handle are arranged outside the fixing body. A reset spring is arranged in the first cavity; the movable wire clamp comprises a small-diameter section and a large-diameter section, and a third handle is arranged outside the movable wire clamp. The scalpel head can axially stretch out and draw back and circumferentially rotate to adjust the angle of the scalpel head through a single hand, the operation range is small, the scalpel head rotates more gently, use is more convenient, and the requirement for multi-angle blood coagulation in a spinal operation can be met.

A discectomy method entails removing at least a portion of a spinal lamina to form an access path in a patient. A surgical instrument is inserted along the path and a distal end of the instrument is placed in operative contact with herniated or bulging disc material of a spinal disc. The instrument is operated to remove the herniated or bulging disc material, to thereby space a remaining portion of the spinal disc from spinal nerves. A tip of an ultrasonic surgical probe is then placed into contact with an outer surface of the remaining portion of the spinal disc, and an ultrasonic mechanical standing wave generated in the probe while maintaining the operative tip in contact with the outer surface to harden the wall surface and thereby reduce chances of disc herniation at the outer surface.

A floating clamp for surgical procedures includes a clamp body and a spring mechanism to allow in / out movement of a portal tube, while maintaining the tube's position in A / P and C / C. The clamp body includes a base portion and an arm pivotally coupled to the base portion such that a distal end of the arm pivots towards and away from a distal end of the base portion. The spring mechanism includes a coil spring and a piston disposed through the coil spring. The spring mechanism can be coupled to the clamp body adjacent to a proximal end thereof.

A retractor for use in surgical operations comprises a pair of blade assemblies. In operation, the blade assemblies are initially in a closed position to assume a low profile, inserted into a relatively small incision, and stretched apart from each other, thereby stretching the skin about the incision to form an aperture longer than the incision. The retractor is adapted to rotate a first blade about a first axis and a second blade about a second axis. The retractor is adapted to move the pair of blade assemblies apart along a third axis. The retractor is adapted to pivot the first blade about a fourth axis and the second blade about a fifth axis. In some embodiments, a method of performing an operation, e.g. a spinal operation, on a patient using the disclosed retractor is provided.

A retractor for use in surgical operations comprises a pair of blade assemblies. In operation, the blade assemblies are initially in a closed position to assume a low profile, inserted into a relatively small incision, and stretched apart from each other, thereby stretching the skin about the incision to form an aperture longer than the incision. The retractor is adapted to rotate a first blade about a first axis and a second blade about a second axis. The retractor is adapted to move the pair of blade assemblies apart along a third axis. The retractor is adapted to pivot the first blade about a fourth axis and the second blade about a fifth axis. In some embodiments, a method of performing an operation, e.g. a spinal operation, on a patient using the disclosed retractor is provided.

A surgical planning system is disclosed which provides computer assisted navigation for spinal surgery. The surgical planning system includes a computer platform operative to obtain images of at least two different postures of a patient's spine, and to measure displacement of anatomical features of the patient's spine between the images of the at least two different postures of the patient's spine. The computer platform is further operative to estimate stiffness of the patient's spine based on the measurements of displacement, and to generate a patient-specific kinematic model of the patient's spine based on the estimated stiffness, and provides a surgical plan based on the patient-specific kinematic model of the patient's spine.

A retractor for use in surgical operations comprises a pair of blade assemblies. In operation, the blade assemblies are initially in a closed position to assume a low profile, inserted into a relatively small incision, and stretched apart from each other, thereby stretching the skin about the incision to form an aperture longer than the incision. The retractor is adapted to rotate a first blade about a first axis and a second blade about a second axis. The retractor is adapted to move the pair of blade assemblies apart along a third axis. The retractor is adapted to pivot the first blade about a fourth axis and the second blade about a fifth axis. In some embodiments, a method of performing an operation, e.g. a spinal operation, on a patient using the disclosed retractor is provided.

A method for performing spinal surgery may include forming an access corridor through an aspect of a facet joint of a patient between an inferior articular process of a vertebra and a superior articular process of a vertebra, wherein at least an aspect of the inferior articular process is preserved on a medial side of the access corridor and at least an aspect of the superior articular process is preserved on a lateral side of the access corridor.

Minimally-invasive spinal surgery methods, devices, and systems for advancing a spinal implant through an oblique anterolateral retroperitoneal operative corridor to an intervertebral disc space located between the L5 and S1 vertebral bodies of a subject positioned in a lateral decubitus position are described. An example spinal implant system includes a retractor sized and shaped to establish at least a portion of the oblique anterolateral retroperitoneal operative corridor, a spinal implant sized and shaped to pass between the first and second unitary retractor blades of the retractor in connection with the spinal implant being introduced into the intervertebral disc space via the oblique anterolateral retroperitoneal operative corridor, and an introducer instrument configured to pass between the first and second unitary retractor blades of the retractor in connection with the introducer instrument introducing the spinal implant into the intervertebral disc space via the oblique anterolateral retroperitoneal operative corridor.

The invention discloses a big-data-based design method and system for a preset screw rod in spinal surgery, and particularly relates to the technical field of preset screw rod design, and the method comprises the following steps: collecting preoperative medical image data of a target patient, extracting anatomical feature parameters, and establishing a surgery fixing instrument database containing historical patient data and implanted instrument parameters; evaluating the degree of adaptation between the standard nail rod and the anatomical structure of the patient and the postoperative fixation stability, dividing the patient matching grade based on the evaluation result, screening patient groups with similar anatomical structures and biomechanical characteristics by adopting a clustering analysis method, and calculating a personalized customization data set in combination with the individual parameters of the target patient; according to the method, the structural adaptation index and the biomechanical adaptation index are adopted, it is ensured that the matching performance of fixing instruments can be judged before an operation, when the standard screw rod is not suitable, the personalized customization process can be automatically triggered, the judgment deviation of a doctor is reduced, and the accuracy of customized screw design is improved.

A method of performing an operation, e.g. a spinal operation, on a patient using a retractor comprising a pair of blade assemblies which are adapted to open about a set of axes that are not parallel to a third spatial axis, and further comprising a pair of arms, which are adapted to move the pair of blade assemblies apart from one another in the third spatial axis. In the method, the blade assemblies are closed to assume a low profile, inserted into a relatively small incision, and stretched apart from each other, thereby stretching the skin about the incision to form an aperture longer than the incision. The blade assemblies are then opened by rotating the blades about the set of axes, stretching the skin around the incision in a second direction that is substantially perpendicular to the first direction (i.e. the direction of the incision.)

A retractor for use in surgical operations comprises a pair of blade assemblies. In operation, the blade assemblies are initially in a closed position to assume a low profile, inserted into a relatively small incision, and stretched apart from each other, thereby stretching the skin about the incision to form an aperture longer than the incision. The retractor is adapted to rotate a first blade about a first axis and a second blade about a second axis. The retractor is adapted to move the pair of blade assemblies apart along a third axis. The retractor is adapted to pivot the first blade about a fourth axis and the second blade about a fifth axis. In some embodiments, a method of performing an operation, e.g. a spinal operation, on a patient using the disclosed retractor is provided.

A visualization instrument holder device can be used during a medical procedure to easily and safely reposition and reorient a visualization instrument while maintaining a constant insertion depth. The device can include an instrument lock defining an opening, a distal tubular member coupled to the instrument lock, and a pivot coupled to the distal tubular member. The distal tubular member can include a channel extending therethrough, and the opening and the channel can be configured to receive the visualization instrument. The pivot can include a curved surface that allows the distal tubular member to pivot about and against the patient. The device can include a proximal tubular member movable relative to the distal tubular member, allowing adjustment of a total length of the device. The device can also include a fixing element for locking a position of the proximal tubular member relative to the distal tubular member.

The utility model relates to bone hook coordinate mapping positioning equipment suitable for spinal surgery, which comprises a bearing rod, the bearing rod is connected with an adjusting rod through an adjusting shaft, a plurality of guide devices are arranged on the outer side of the bearing rod and the outer side of the adjusting rod, each guide device comprises a guide seat, and a bone power cutting groove is formed in the outer side of each guide seat. A bone hook groove is formed in the guide seat, and a plurality of bone hook assemblies are arranged in the bone hook groove through mapping assemblies. Therefore, the angles of the bearing rod and the adjusting rod can be properly adjusted, the physiological curve of the back of the human body can be fitted, and subsequent positioning errors are avoided. The angle of the guiding device can be adjusted, and a proper angle can be provided according to the mapping requirement. The guiding device can achieve stable positioning of the orthopedic power depth limiter installed subsequently, and sliding is avoided. The bone hook assembly can achieve accurate mapping of bone surface contact point coordinates, and the operation precision is improved.

Implants and instruments for providing an ideal trajectory for the insertion of instruments and screws during implantation of an interbody implant in a spinal surgery are disclosed.

The utility model belongs to the technical field of body position pads, and provides a spine operation prone position body position pad which comprises a bottom pad. The leg supporting assembly comprises a first leg supporting seat and a second leg supporting seat, first arc-shaped grooves are symmetrically formed in the upper surfaces of the first leg supporting seat and the second leg supporting seat, and leg supporting parts are arranged on the side walls of the first leg supporting seat and the second leg supporting seat; the chest supporting assembly comprises a first chest supporting seat and a second chest supporting seat, and second arc-shaped grooves are symmetrically formed in the upper surface of the first chest supporting seat and the upper surface of the second chest supporting seat; through the arrangement of the bottom pad, the leg supporting assembly and the chest supporting assembly, the prostrating device can be attached to the corresponding parts of the body, pressure is evenly distributed, local excessive pressure possibly caused by long-time prostrating is reduced, and the situation that a patient feels painful due to the fact that the body position of the patient is not comfortable is avoided.

A pivoting rod connector for spinal stabilization members comprises first and second connector blocks, each comprising a rod slot for receiving a stabilization member and a closure bore for receiving a closure device, a pivot mechanism connecting the first connector block and the second connector block to allow for angulation between the rod slots, and a locking mechanism to inhibit angulation of the pivot mechanism. Methods of connecting stabilization members in a spinal procedure can comprise adjusting of the angular positioning of the first connector block relative to the second connector block via the pivot mechanism, and locking a position of the first connector body relative to the second connector block following adjustment. The positioning of the connector blocks relative to the spine of the patient are adjustable when the stabilization members are coupled to the spine and inserted into the connector blocks.

The invention provides a percutaneous spine endoscopic surgery robot path planning method and system, and the method comprises the steps: determining the pixel offset characteristics of a percutaneous spine after the tissue structure deformation in a current spine surgery according to deformation data in tissue structure information; determining each obstacle area generated by tissue deformation in the percutaneous spine according to the pixel offset characteristics and the current motion state of the surgical robot, and predicting the obstacle influence degree of the tissue deformation in the spinal operation at the current operation moment according to the distribution characteristics of each obstacle area; feedback constraint is carried out on the obstacle influence degree according to the execution deviation of the actual operation path, and confidence constraint of an obstacle avoidance strategy in the spinal operation is obtained; and performing dynamic feedback on the obstacle avoidance strategy of the surgical robot in the subsequent surgical path based on confidence constraint to obtain an obstacle avoidance path of the surgical robot in the spinal surgery. Based on the scheme, the dynamic feedback adjustment of the obstacle avoidance path in the surgical robot can be realized, so that the safety of the percutaneous spine endoscopic surgery can be improved.

Surgical instruments and related methods are disclosed for performing rod reduction, derotation, and / or setscrew insertion during spinal surgery. One example instrument that can accommodate performing all of these functions can include an inner sleeve having a proximal threaded portion, a distal portion configured to rotate relative to the proximal threaded portion, an inner channel, and a modular drive interface disposed at a proximal end of the threaded portion. The instrument can further include an intermediate sleeve having an inner channel with a threaded proximal portion configured to receive the inner sleeve, the intermediate sleeve terminating in a pair of extensions at a distal end thereof. The instrument can further include an outer sleeve having an inner channel configured to receive the intermediate sleeve, the outer sleeve terminating in a pair of extensions at a distal end thereof.

A retractor for use in surgical operations comprises a pair of blade assemblies. In operation, the blade assemblies are initially in a closed position to assume a low profile, inserted into a relatively small incision, and stretched apart from each other, thereby stretching the skin about the incision to form an aperture longer than the incision. The retractor is adapted to rotate a first blade about a first axis and a second blade about a second axis. The retractor is adapted to move the pair of blade assemblies apart along a third axis. The retractor is adapted to pivot the first blade about a fourth axis and the second blade about a fifth axis. In some embodiments, a method of performing an operation, e.g. a spinal operation, on a patient using the disclosed retractor is provided.

Methods and systems for evaluating the biomechanical properties of a subject's spine for the purpose of optimizing a potential surgical intervention by selecting or designing surgical hardware for a spinal correction procedure. The system uses a simulated dynamic analysis configured to analyze, predict and improve the outcome of the surgical procedure by taking into account physiological, biomechanical, and anatomical factors. Machine learning algorithms use the computed distribution of forces and moments on the subject's spine, and compare the subject's results with those of patients from a reference population. By analyzing the biomechanical parameters of individuals in the reference population and distinguishing those whose procedure succeeded versus those whose procedure failed, and comparing their biomechanical parameters to these of the individual under evaluation for a spinal surgery, the method is able to predict the chances for a successful surgery, recommend an optimal procedure and / or the optimal implant(s) configuration.

The embodiment of the invention is suitable for the technical field of computer-aided medical treatment, and provides a spinal surgery screw placement path planning method and device and a computer program product, and the method comprises the steps: obtaining a spinal image, and determining a spinal central axis based on the spinal image; determining a nail placement stop point according to the central axis of the spine; based on the screw placement stop points, a screw placement point candidate set is determined, and the screw placement point candidate set comprises a plurality of candidate screw placement points located on the spine transverse process; a candidate screw placement path formed by any candidate screw placement entry point and the screw placement stop point is determined; respectively calculating the distance from each bone surface edge point of the spine bone surface to each candidate screw placement path, and determining a screw placement point from the plurality of candidate screw placement points according to the distances; and planning a nail placement path based on the nail placement entry point and the nail placement stop point. By applying the method, the screw placement path of the spinal surgery can be automatically planned, and the accuracy and efficiency of screw placement path planning are improved.

Systems and methods for assisting a surgeon with implant during a surgery are disclosed. A method includes defining areas of interest in diagnostic data of a patient and defining an implant type. Post defining the areas of interest, salient points are determined for the areas of interest. Successively, an XZ angle, an XY angle, and a position entry point for an implant are determined based on the salient points of the areas of interest. In spinal procedures, a maximum screw diameter and a length of the spinal screw are successively determined based on the salient points. Based on determined length and diameter, a spinal screw and a matching screw guide is determined. Thereafter, the spinal screw and the screw guide is printed using a Three-Dimensional (3D) printer. Such printed spinal screw and screw guide could be used by the surgeon during the spinal surgery.

The invention provides a spine minimally invasive surgery protection position frame which comprises a supporting frame, the supporting frame comprises a body cushion, a headrest and arm cushions, positioning mechanisms are arranged on the body cushion and the arm cushions, and each positioning mechanism comprises a plurality of sets of positioning rods, positioning sleeves, first springs and locking mechanisms. Guide holes are formed in the body pad and the arm pads in a matrix mode, the positioning sleeves are fixed to the bottoms of the body pad and the arm pads, top inlets correspond to the guide holes, the positioning rods are vertically matched in the guide holes and the positioning sleeves in a sliding mode one by one, and the first springs are arranged between the positioning rods and the bottoms of the positioning sleeves. After a patient lies on the supporting frame, under the compression of the patient, the compressed positioning rod can be vertically pressed into the guide hole, the non-compressed positioning rod is unchanged in shape, and a limiting enclosure is formed on the periphery of the patient, so that the patient is not prone to horizontal deviation, the stability in the spinal operation process is guaranteed, and the success rate of the operation and the perfectness of the operation are improved.

According to the measuring scale based on the spinal surgery, when the depth of an excision position needs to be measured, the measuring scale based on the spinal surgery is adopted for measurement, the measuring assembly is pushed to move, so that the measuring assembly moves relative to the measuring end and drives the connecting assembly to move, and the connecting assembly moves to drive the reading assembly to move; therefore, the stroke length of the measuring assembly relative to the measuring end is measured. The scale surface is perpendicular to the measuring end, so that the reading can be accurately and quickly carried out by directly lowering the head to enable the sight line to be perpendicular to the scale surface without looking at the head horizontally in the reading process, and the problem of measuring errors caused by sight line errors is avoided. Secondly, since the scale surface is perpendicular to the measuring end, the doctor can complete measurement without squatting, so that the measuring speed is increased; meanwhile, in the measuring process, the surgeon and the first operation assistant can synchronously and clearly read numbers, and the accuracy of the reading result is improved through mutual correction of the two persons.

Various implant holding systems are provided herein that include an outer tube, an inner tube, and a holder. The implant holding systems can be designed to hold various implants, such as bone anchors used in spinal operations. For example, one embodiment of an implant holding system can have an outer tube, an inner tube that can be disposed within the outer tube, and an implant holder that can be disposed within the inner tube. An individual bone anchor that has various configurations and sizes can be disposed within the holder, and the holder can engage the bone anchor to assist in maintaining an orientation of the bone anchor relative to the holder.

The embodiment of the present application provides an adjusting structure of a spinal surgery channel system and the spinal surgery channel system with the adjusting structure. The spinal surgery channel system comprises an endoscope and a working channel tube, the adjusting structure comprises a supporting assembly, an adjusting assembly and a matching seat, the supporting assembly is used for mounting the working channel tube, the matching seat is connectable with the endoscope, and the matching seat is swingably connected with the supporting assembly along a first preset direction through the adjusting assembly so as to realize the displacement of an endoscope tube of the endoscope along the first preset direction. Therefore, the relative position of the endoscope tube in the working channel tube is changed, the moving stroke range of the endoscope tube is improved, and the doctor can adjust the endoscope tube to the ideal position according to the actual situation of the patient. Therefore, the adjusting structure according to the embodiment of the present application has the advantages of improving the operation field of view and increasing the flexibility and convenience of the operation.

The invention relates to the technical field of medical instruments, in particular to a spinal surgery retractor which comprises a retractor mechanism, the retractor mechanism comprises a first retractor structure and a second retractor structure, the first retractor structure comprises a first retractor part and a second retractor part, and the second retractor part is telescopically assembled on the first retractor part. The first retracting part and the second retracting part are used for being matched to retract the tissue, and when the first retracting part and the second retracting part are used for being matched to retract the tissue, the second retracting structure is assembled on the first retracting part and the second retracting part and used for retracting the spine bone or the tissue. The invention relates to a spine retractor, in particular to a spine retractor, which aims at not only retracting surface tissues, but also retracting deep muscles during a spine operation, and simultaneously retracting spine bones during tissue retraction, is convenient to use, and is suitable for spine retraction at different positions.

An extender assembly for spinal surgery includes a base, an extension, and a blade. The base includes a frame, an engagement mechanism coupled to the frame and rotatable relative to the frame between a first rotational orientation and a second rotational orientation, and a jaw mechanism coupled to the frame and including first and second jaws movable for engaging a shank of a screw. The extension is configured to releasably engage the base and includes a jaw drive mechanism configured to move the first and second jaws when the extension is engaged with the base. The blade is configured to releasably engage the base. In the first rotational orientation of the engagement mechanism, the extension is locked in engagement with the base and wherein, in the second rotational orientation of the engagement mechanism, the blade is locked in engagement with the base.