15 results about "Foramen" patented technology

The application discloses an oval foramen automatic detection and fine segmentation method based on an anatomic landmark gravity field and a tubular topology enhancement, and specifically relates to the technical field of medical image processing. Firstly, the head CT or MRI image to be processed is subjected to multi-modal space alignment and adaptive contrast enhancement; subsequently, the image is input into an anatomic landmark gravity field network, macroscopic landmarks of a skull base are extracted, a spatial gravity field matrix is constructed, and the model attention is adaptively focused on a small oval foramen high probability area; then, a multi-view tubular structure enhancement encoder is used to extract features of a three-dimensional hole track of the oval foramen, and the interference of non-penetrating bone depressions is inhibited; finally, a three-dimensional penetrating topology constraint mechanism is introduced in the decoding stage, so that the generated three-dimensional model of the oval foramen has correct anatomic connectivity. The application can effectively solve the detection problem of the oval foramen caused by the large individual variation, the small volume and the easy confusion with surrounding holes and fissures, and significantly improves the preoperative planning accuracy of trigeminal neuralgia puncture and other surgeries.

The invention discloses a trigeminal neuralgia percutaneous puncture path planning method and system. The method comprises the following steps: acquiring skull CT (Computed Tomography) image data and MRI (Magnetic Resonance Imaging) image data of a target, and performing three-dimensional reconstruction to obtain an oval foramen bony model and a McLeod cavity three-dimensional model; determining an anatomical entry point, determining a bony channel constraint point based on an oval foramen bony model, and determining an ideal end point of a puncture path based on a McLeod cavity three-dimensional model; taking the anatomical entry point as a path starting point, taking the ideal end point as a path end point target, taking the bony channel constraint point as a path space constraint condition for path passing, and optimizing a target function to obtain an optimal puncture path; based on the McLeod cavity three-dimensional model space volume, determining an individualized balloon injection amount estimation range of a target; and storing the space coordinate and the direction vector of the optimal puncture path and the individualized balloon injection amount estimation range as a standardized digital file. According to the invention, the certainty and safety of the puncture path can be improved.

The invention provides an extracorporeal circulation direct-view patent foramen ovale suturing device, and relates to the technical field of surgical instruments. The main body is of a circular rod-shaped structure, an external thread is arranged on the main body, and a limiting ring is fixedly mounted below the outer side of the main body; two sets of turnover frames are arranged in an end groove in the main body, each set of turnover frame is rotationally matched with the end groove through a torsion spring, each set of turnover frame can turn over by 90 degrees towards the outer side of the end groove, a push block is driven by a control rod to achieve unfolding and folding of the turnover frames, and the functions of guiding movement of a sliding piece and storage of a rotating piece are matched, so that surgical operation is simpler, more convenient and more controllable; the suture needle is quickly mounted through the fixing groove, and the suture line sequentially penetrates through the threading groove, so that the suture needle punctures the inner wall of the heart at a time in the operation process, the slipping phenomenon is avoided, the operation time is shortened, and the problems that a traditional plugging device needs to accurately match the size of an oval hole, model selection is limited and operation is inconvenient are solved. And the closing effect of the oval foramen with irregular shapes is not ideal.

Examples of implantable medical leads or implantable medical systems with implantable medical leads to be anchored to a sacrum are disclosed. The implantable medical leads include a lead body having a distal portion. A fixation mechanism is coupled to the distal portion. An electrode array is mechanically coupled to the fixation mechanism. In one example, the electrode array is directly coupled to the fixation mechanism. The electrode array is electrically coupled to the lead body and configured to generate a stimulation field. The fixation mechanism is configured to anchor the implantable medical lead to a sacrum and effect the stimulation field in a foramen of the sacrum.

The suturing device comprises a conveying pipe and a puncture assembly, a first channel is formed in the conveying pipe, the first channel extends in the axial direction of the conveying pipe, the near end of the first channel penetrates through the near end of the conveying pipe, and a puncture opening is formed in the side wall of the far end of the conveying pipe; the puncture opening is communicated with the far end of the first channel; the first channel comprises a first channel and a second channel which are connected with each other, the near end of the first channel penetrates through the near end of the conveying pipe, and the axis of the first channel is parallel to the axis of the conveying pipe; from near to far, the second channel gradually inclines outwards in the radial direction, and the far end of the second channel communicates with the puncture opening; the puncture assembly is arranged in the first channel in a penetrating mode, and the far end of the puncture needle can penetrate out of the puncture opening. The operation difficulty can be reduced, the sealing effect on the foramen ovale is improved, and the probability of complications is reduced.

Systems and methods for implanting sacral nerve stimulation leads through a target sacral foramen and proximate a target sacral nerve are disclosed. For example, an alignment system including a primary alignment feature and a secondary alignment feature couplable to the primary alignment feature are provided. The primary alignment feature lies flat against the patient's skin and includes radiopaque grid lines that form a coordinate system on the patient's skin. An imaging device obtains a first image that includes both the primary alignment feature and the target foramen. The position of the target foramen is correlated to a position on the primary alignment feature based on the first image. The secondary alignment feature is coupled to the primary alignment feature and provides an indication of the specific insertion point and insertion angle for a delivery instrument carrying a signal delivery device into the patient.

The application relates to a suturing device, which comprises a delivery tube and a puncture assembly, a first channel is formed in the delivery tube, the first channel extends along the axial direction of the delivery tube, the proximal end of the first channel penetrates the proximal end of the delivery tube, a puncture port is arranged on the side wall of the distal end of the delivery tube, and the puncture port communicates with the distal end of the first channel; the first channel comprises a first channel and a second channel which are connected with each other, the proximal end of the first channel penetrates the proximal end of the delivery tube, and the axis of the first channel is parallel to the axis of the delivery tube; the second channel gradually inclines radially outward from the proximal end to the distal end, and the distal end of the second channel communicates with the puncture port; the puncture assembly is arranged in the first channel, and the distal end of the puncture needle can penetrate out of the puncture port. The surgical difficulty can be reduced, the closure effect on the oval foramen can be improved, and the probability of complications can be reduced.

This utility model discloses a dual-disc, one-piece biodegradable foramen ovale occluder for atrial septum. The occluder includes a first disc, a second disc, and an occluding part. The first and second discs are connected to the two ends of the occluding part. The first, second, and occluding parts are one-piece molded and biodegradable. Both the first and second discs are elastic components that can automatically return to their original shape. The plane containing the edge of the first disc is a first plane, and the plane containing the edge of the second disc is a second plane. The angle between the axis of the occluding part and the first plane is an acute angle, and / or the angle between the axis of the occluding part and the second plane is an acute angle. The occluder is a one-piece biodegradable component, which can avoid long-term complications and safety hazards caused by metal remaining in the body. Furthermore, the first and / or second discs are inclined relative to the occluding part, thereby allowing the first and second discs to adapt to different shapes of heart wall structures and improving the occlusion effect.

The invention relates to the technical field of bone section trephine in the lumbar foramen endoscope operation, in particular to a trephine for stopping bleeding of a bone section in the lumbar foramen endoscope operation. According to the technical scheme, the device comprises a trephine and a propeller fixedly arranged at the end of the trephine in a sleeving mode; a plurality of pits are formed in the side wall of the end, close to a saw blade, of the trephine, and the pits are filled with bone wax used for stopping bleeding during cutting. According to the trephine, the multiple pits are formed in the outer surface of the working section of the trephine, the bone wax is smeared in the multiple pits through the wax adding ring before an operation, the bone wax is smeared at the bleeding position in the incision process of the operation, and the problems that after a traditional trephine is used for cutting bone tissue, due to delayed hemostasis of the bone section, the visual field is disturbed, and hemostasis operation is difficult are solved; the effect of stopping bleeding immediately in the cutting process is achieved. The hemostasis efficiency in the lumbar foramen endoscope operation is improved, the hemostasis time is shortened, and the overall operation duration is shortened. And the difficulty of endoscopic hemostasis operation is reduced, remaining bleeding spots are reduced, and the operation safety and reliability are improved.

The invention discloses a fusion cage selection method, a fusion cage, a device, a storage medium and electronic equipment. The method comprises the following steps: acquiring a cervical vertebra medical image of a target object; determining a first vertebral foramen area of the cervical vertebra of the target object before lesion and a second vertebral foramen area of the target object after lesion based on the cervical vertebra medical image; determining a target opening area of the vertebral hole based on the first vertebral hole area and the second vertebral hole area; fusion cage parameters are determined based on the target distraction area, a target fusion cage is determined from the multiple fusion cages based on the fusion cage parameters, and the target fusion cage is used for being supported between two vertebral plates of the cervical vertebra of the target object so as to expand the vertebral foramen area. By means of the fusion cage selection method and device, the problem that the accuracy of fusion cage selection is low due to the fact that the fusion cage needing to be used in posterior cervical single-side opening canalis vertebralis enlargement is selected according to artificial experience in the related technology is solved.

The PFO suturing device comprises a conveying pipe and a puncture assembly, a first channel is formed in the conveying pipe, the first channel extends in the axial direction of the conveying pipe, the near end of the first channel penetrates through the near end of the conveying pipe, a puncture opening is formed in the side wall of the far end of the conveying pipe, and the puncture assembly is arranged on the side wall of the far end of the conveying pipe. The puncture opening is communicated with the far end of the first channel; the far end of the first channel is bent outwards in the radial direction, so that the far end of the first channel is communicated with the puncture opening. The puncture assembly is arranged in the first channel in a penetrating mode, and the far end of the puncture needle can penetrate out of the puncture opening. The operation difficulty can be reduced, the sealing effect on the foramen ovale is improved, and the probability of complications is reduced.

The present application relates to a kind of PFO suture device, including delivery tube and puncture assembly, first passage is formed in the delivery tube, the first passage extends along the axial direction of the delivery tube, the proximal end of the first passage is through the proximal end of the delivery tube, the side wall of the distal end of the delivery tube is provided with puncture port, the puncture port is communicated with the distal end of the first passage;The distal end of the first passage is radially outwardly bent, so that the distal end of the first passage is communicated with the puncture port;The puncture assembly is threaded in the first passage, and the distal end of the puncture needle can be penetrated from the puncture port. It can reduce the difficulty of operation, improve the closure effect of oval foramen, reduce the probability of complication.

The invention provides a foramen ovale suturing needle and a foramen ovale suturing system, and belongs to the technical field of medical instruments.The foramen ovale suturing needle adopts a section of spiral needle with a spiral line trend with the natural number being N screw pitches, and the top end of the spiral needle is in a sharp wedge face shape to form a needle head; the spiral tubular body is continuously communicated from the needle head to the tubular cavity at the tail end, the front end and the rear end of the spiral tubular body are open, and the cylindrical spiral line is a single spiral. The foramen ovale suturing system comprises a right atrium approach channel pipe sheath and a suturing mechanism composed of the foramen ovale suturing needle. The foramen ovale intervention plate intervenes between the primary septum and the secondary septum in the foramen ovale, the primary septum and the secondary septum, close to the two sides of the foramen ovale intervention plate, of the foramen ovale are instantly frozen, the freezing suction effect is achieved, and the spiral needle rotates to suture the primary septum and the secondary septum of the foramen ovale conveniently.

The application discloses a selection method of a fusion device, the fusion device, a device, a storage medium and an electronic device. It relates to the field of medical instruments. The method comprises the following steps: acquiring a cervical vertebra medical image of a target object; determining a first foramen area of the cervical vertebra of the target object before a lesion and a second foramen area of the target object after the lesion based on the cervical vertebra medical image; determining a target distraction area of the foramen based on the first foramen area and the second foramen area; determining a fusion device parameter based on the target distraction area, and determining a target fusion device from a plurality of fusion devices based on the fusion device parameter, wherein the target fusion device is used to support between two vertebral plates of the cervical vertebra of the target object to expand the foramen area. Through the application, the problem that the related art relies on manual experience to select the fusion device required in unilateral open-door laminoplasty of the cervical vertebra is solved, and the accuracy of selecting the fusion device is low.

The invention relates to the technical field of medical instruments, and particularly discloses a novel intervertebral foramen mirror which comprises a mirror table, and a cavity is formed in the middle of the mirror table; the mirror tube is arranged at the bottom of the mirror table; the liquid pipeline joints are distributed on the outer side of the endoscope tube, and a liquid flowing pipeline communicated with the liquid pipeline joints is arranged in the endoscope tube; the eyepiece is arranged on the outer side of the telescope tube, a focusing knob is arranged on the outer side of the eyepiece, and a lamp post is arranged in the telescope tube; the cold light source interface is arranged on the outer side of the mirror tube and is in contact with the lamp post; and the camera pipeline joint is arranged on the outer side of the mirror tube. In the using process of the novel intervertebral foramen mirror, the problems that in the prior art, due to the fact that the vertical holding angle of a foramen mirror is fixed, operation fatigue is likely to be caused, the water pressure risk is uncontrollable, shielded blood vessels, nerve roots and bony structures cannot be well distinguished, and the accidental injury risk is high in the operation can be solved.