39 results about "Epidural space" patented technology

The present invention discloses a puncture device and system with a hematoma monitoring function, which relates to the technical field of biomedical engineering. The device includes: an epidural puncture needle, including a needle body and a needle hub; an epidural catheter for entering the epidural space through the epidural puncture needle; the front end of the epidural catheter is an insertion section, which is longitudinally inserted along the epidural space after entering the epidural space, and an impedance measurement structure is provided corresponding to the insertion section for measuring the impedance value around the insertion section and transmitting it to an impedance analyzer; the impedance analyzer is used to receive the aforementioned impedance value and evaluate whether there is a hematoma in the epidural space according to the change information of the impedance. The present invention can sensitively, timely and accurately identify the occurrence and development risks of epidural hematoma, thereby helping to improve the quality of clinical medical safety and improve the perioperative prognosis of patients.

Epidural anesthesia is commonly used for surgeries and pain control. However, identifying the epidural space can be challenging, resulting in failure rates of up to 32%. To address this issue, a new invention involving an epidural needle with electronic sensors and alarms has been developed. This portable device aims to improve accuracy in identifying the epidural space by utilizing auxiliary methods such as audio and optical systems. It features a high accuracy electronic barometer to measure pressure and ensure correct identification. The incorporation of a highly sensitive pressure sensor and other mechanisms like sound and optical alarms increase the reliability of the epidural method. Furthermore, the device allows for adjustment of pressure levels, sensitivity, and sterilization to maintain hygiene.

The application discloses a lumbar puncture auxiliary mechanism and a use method thereof. The lumbar puncture auxiliary mechanism comprises a main body assembly, a supporting shell fixed to one side of a positioning disc, and a puncture needle penetrating through the positioning disc and the supporting shell. The main body assembly is provided with an adjusting assembly in the supporting shell. The adjusting assembly comprises a driving element arranged on one side of the positioning disc, a transmission element arranged on one side of the driving element, and an adjusting element arranged on one side of the transmission element. The adjusting element comprises a limiting shell fixed to the inner wall of the supporting shell, a rack sliding in the limiting shell, and a first spring fixed to the end of the rack. The adjusting assembly can intermittently supply the puncture needle, so that the puncture needle can smoothly break through the yellow ligament without improper force. The puncture process can be judged, so that the time when the puncture needle enters the epidural space and the subarachnoid space can be accurately grasped, and the accidental damage to the human body is reduced.

A method of performing a transcorporeal procedure including placement of a vertebral body replacement device into a transcorporeal void within a cervical spine is disclosed. The method includes creating a working channel through a vertebral body of a vertebra by removing at least a portion of the vertebral body of the vertebra, beginning anteriorly and extending inwardly toward the epidural space, the working channel extending from an anterior wall through a posterior wall, and placing the vertebral body replacement device within the working channel, the placement of the vertebral body replacement device leaving the inferior and superior endplates to perform their function and leaving at least a portion of the intervertebral disc functional thereby avoiding an intervertebral fusion to an adjacent vertebra.

The lumbar puncture auxiliary mechanism comprises a main body assembly, the main body assembly comprises a positioning disc and a supporting shell fixed to one side of the positioning disc, and a puncture needle penetrates through the positioning disc and the supporting shell; the adjusting assembly is arranged in the supporting shell and comprises a driving piece arranged on one side of the positioning disc, a transmission piece is arranged on one side of the driving piece, an adjusting piece is arranged on one side of the transmission piece and comprises a limiting shell fixed to the inner wall of the supporting shell, a rack slides in the limiting shell, and a first spring is fixed to the end of the rack. By arranging the adjusting assembly, intermittent supply can be conducted on the puncture needle, so that the puncture needle can smoothly break through the ligamentum flavum, and the situation of improper force exertion is avoided; the puncture process can be judged, so that the opportunity that the puncture needle enters the epidural space and the subarachnoid space is accurately grasped, and accidental injuries to the human body are reduced.

Methods and devices for implanting spinal cord stimulation devices, including thin-film spinal cord stimulation devices and devices for assisting with the implantation of such spinal cord stimulation devices. In some embodiments, the devices and methods include an introduction needle and / or sheath, a stylet, a guide device, and a pushing device for urging a stimulation device into the epidural space by controlling the proximal end of the device, including, in some cases, deformable thin-film spinal cord stimulation devices.

Methods and devices for implanting spinal cord stimulation devices, including thin-film spinal cord stimulation devices and devices for assisting with the implantation of such spinal cord stimulation devices. In some embodiments, the devices and methods include an introduction needle and / or sheath, a stylet, a guide device, and a pushing device for urging a stimulation device into the epidural space by controlling the proximal end of the device, including, in some cases, deformable thin-film spinal cord stimulation devices.

The invention relates to the technical field of ultrasonic image processing, in particular to an ultrasonic image processing method for epidural anesthesia localization, and the method comprises the steps: collecting a preset number of frames of sagittal plane ultrasonic images of a lumbar region through longitudinal scanning, and recognizing a sacrum spinous process possible region from each frame of sagittal plane ultrasonic image; performing sacrum feature analysis processing on each sacrum spinous process possible region, and screening out a target sacrum region based on sacrum feature indexes; performing spinous process characteristic analysis processing on the sacrum spinous process possible area; identifying an L4 spinous process region and an L3 spinous process region based on spinous process characteristic indexes corresponding to the sacrum spinous process possible region; and performing transverse scanning based on a region between the L4 spinous process region and the L3 spinous process region, and performing epidural space region identification on the cross section ultrasonic image. By processing the sagittal plane ultrasonic image, the epidural space area identification is realized, and the accuracy of epidural space area identification is improved.

The invention discloses a puncture device and system with a hematoma monitoring function, and relates to the technical field of biomedical engineering. The device comprises an epidural puncture needle which comprises a needle body and a needle seat; the epidural catheter is used for entering the epidural space through the epidural puncture needle; the front end of the epidural catheter is an imbedding section, the imbedding section is longitudinally imbedded along the epidural cavity after entering the epidural cavity, and an electrical impedance measuring structure is arranged corresponding to the imbedding section and used for measuring the electrical impedance value of the periphery of the imbedding section and transmitting the electrical impedance value to the electrical impedance analyzer; and the electrical impedance analyzer is used for receiving the electrical impedance value and evaluating whether the epidural space has hematoma or not according to the change information of the electrical impedance. According to the invention, the occurrence and development risk of epidural hematoma can be sensitively, timely and accurately identified, so that the clinical medical safety quality can be improved, and the perioperative prognosis of patients can be improved.

Devices, systems and methods for reducing migration of leads, catheters and similar devices are provided. In particular, devices, systems and methods are provided for creating a slack anchor which assists in maintaining the lead or catheter in a desired position. In some embodiments, the slack anchor is created within the epidural space. When targeting nerve anatomy within the spinal column or in the vicinity of the epidural space, anchoring within the epidural space allows the associated lead or catheter to be anchored as close to the target therapy site as desired or possible. By anchoring close to the target therapy site, the risk of movement or migration is significantly reduced or eliminated.

A device for continuously monitoring glucose levels in a patient includes a lead assembly in electrical communication with an electronics assembly. The electronics assembly is configured to be positioned in the subcutaneous tissue and the lead assembly is configured to be positioned in a vessel of the patient, such as in a vein or in an epidural space. The lead assembly has a lumen, and includes at least one electrode in electrical communication with the electronics assembly.

This invention discloses an epidural anesthesia assistance method and system based on pressure curve characteristics, including a data acquisition and preprocessing module, an anatomical layer segmentation module, a multidimensional feature extraction module, a template matching and initial classification module, a Bayesian probabilistic inference and fusion decision-making module, a risk assessment and feedback output module, and an online adaptive update module. By utilizing real-time pressure monitoring, negative pressure recognition, and biometric frequency extraction technologies, it assists in determining the position of the epidural puncture needle, significantly reducing the rate of epidural puncture mispuncture and improving clinical safety. Through a Bayesian online learning update mechanism, the model parameters can be continuously iterated based on clinically labeled data, adapting to different operator habits and sensor drift, achieving long-term stable operation and individualized calibration. This invention is easy to integrate and has low hardware costs, facilitating large-scale clinical deployment.

In some embodiments, disclosed herein are systems and methods of treating a patient that can include the steps of accessing the sphenopalatine fossa, and cannulating the inferior orbital fissure from the sphenopalatine fossa to access the retro-orbital space. The sphenopalatine fossa can be accessed via various routes, including percutaneously. Accessing the sphenopalatine fossa can include the step of inserting a needle-catheter system into the sphenopalatine fossa. Integrated needle-catheter systems as described herein can also be configured to access the trigeminal ganglion, epidural space, intrathecal space, and other desired anatomical locations.

The invention discloses an epidural nerve releasing kit, and relates to the technical field of medical instruments. Comprising an epidural needle used for puncturing into the epidural space, a nerve releasing catheter entering the epidural space through the epidural needle, a locking connector matched with the nerve releasing catheter for medicine injection and an electrical stimulation assembly for conveying stimulation current to a pain part through the nerve releasing catheter. Through mutual cooperation of the epidural needle, the nerve releasing catheter, the locking connector and the electrical stimulation assembly, a doctor is assisted in completing a nerve releasing operation, and the operation efficiency is improved.

A kit for treating lung disease includes at least one lead having at least one contact, and a pulse generator configured to connect to the least one lead. The pulse generator is programmed to generate electrical signals for transmission through the at least one lead and for release by the at least one contact in a predetermined location of an epidural space to mitigate lung disease symptoms.

A kit for treating lung disease includes at least one lead having at least one contact, and a pulse generator configured to connect to the least one lead. The pulse generator is programmed to generate electrical signals for transmission through the at least one lead and for release by the at least one contact in a predetermined location of an epidural space to mitigate lung disease symptoms.

Methods of treating cardiovascular disease are provided. The method may include administering a transient receptor potential vanillic acid subtype 1 (TRPV1) receptor agonist to the epidural space. The methods may be used to treat a variety of conditions, such as hypertension, prehypertension, mild hypertension, severe hypertension, refractory hypertension, congestive heart failure, and myocardial scarring.

The present disclosure relates to the medical device field and discloses a system including a medical puncture device and a medical device configured to be incorporated into the medical puncture device. In some embodiments, the present disclosure has particular application to enabling injection, entry, expansion, and / or implantation of devices into apparent or potential tissue voids, cavities, or vessels (e.g., the epidural space), and providing precise control over puncture depth and needle placement, as well as stable and limited volume injections (e.g., for epidural anesthesia).

This disclosure relates to a flexible electrode for the spinal cord and a method for manufacturing the same. A flexible electrode for the spinal cord is provided, comprising: an attachment portion configured to be able to be placed on the white matter lateral to the epidural space or intradural space, and configured to acquire or apply electrical signals to the surface of the spinal cord; wherein the attachment portion of the flexible electrode includes a first insulating layer and a second insulating layer, and a conductive layer located between the first insulating layer and the second insulating layer; wherein the attachment portion of the flexible electrode further includes one or more electrode sites, each electrode site being electrically coupled to one of the conductive wires in the conductive layer, and contacting the spinal cord after implantation of the flexible electrode to acquire electrical signals from spinal nerves and transmit the acquired electrical signals through the conductive wires, or to apply electrical signals received through the conductive wires to spinal nerves.

A device for continuously monitoring glucose levels in a patient includes a lead assembly in electrical communication with an electronics assembly. The electronics assembly is configured to be positioned in the subcutaneous tissue and the lead assembly is configured to be positioned in a vessel of the patient, such as in a vein or in an epidural space. The lead assembly has a lumen, and includes at least one electrode in electrical communication with the electronics assembly.

The invention relates to the technical field of spinal anesthesia puncture, and discloses a spinal anesthesia puncture needle and an operation method thereof.The spinal anesthesia puncture needle comprises a needle base, an inner needle body, a needle core and an expansion wing, a medicine outlet hole is formed in the outer side face of the front end of the inner needle body, and the expansion wing is arranged on the outer side face of the inner needle body and located behind the medicine outlet hole; the expansion wings can be expanded at different angles when being positioned in the epidural space and the subarachnoid space; the outer needle body is coaxially connected to the outer side of the inner needle body in a sliding mode, and a through hole corresponding to the expansion wing in position is formed in the front end of the outer needle body; the positioning mechanism enables the outer needle body to be fixed at different positions so as to control the expansion wings to stretch or retract; the angle detection assembly monitors the angle of the expansion wing in real time; according to the spinal anesthesia puncture needle, through cooperation of the expansion wing and the angle detection assembly, the position of the medicine outlet hole can be accurately judged, the puncture needle is prevented from retreating, and the problems that in-place judgment of the puncture needle is unreliable and the position of the medicine outlet hole is uncertain in the prior art can be effectively solved.

A device for continuously monitoring glucose levels in a patient includes a lead assembly in electrical communication with an electronics assembly. The electronics assembly is configured to be positioned in the subcutaneous tissue and the lead assembly is configured to be positioned in a vessel of the patient, such as in a vein or in an epidural space. The lead assembly has a lumen, and includes at least one electrode in electrical communication with the electronics assembly.

The utility model relates to a puncture needle for an operation in an epidural space, belongs to the technical field of medical instruments, and solves the technical problem that a soft fiber lens is easy to touch nerves and other tissues in the epidural space when being inserted. The puncture needle comprises a needle handle, a needle tube, a needle head and a steering assembly, the needle head comprises a fixed section, a steering section and a connecting part, and the steering section can rotate towards the opening direction of the needle head around the connecting part; the steering assembly comprises a traction wire and a control component, one end of the traction wire is fixed to the opening of the steering section, the other end of the traction wire is connected with the control component, and the control component is movably connected with the needle handle. A through hole for containing the traction wire is formed in the needle tube and the fixed section, and an opening in one end of the through hole is formed in the opening of the fixed end. The puncture needle can control and adjust the insertion direction of the fiber soft lens in the body, so that the fiber soft lens is prevented from touching other tissues such as nerves in an epidural space, the safety and the success rate of an epidural space operation are improved, and the occurrence rate of postoperative complications is reduced.

A device for continuously monitoring glucose levels in a patient includes a lead assembly in electrical communication with an electronics assembly. The electronics assembly is configured to be positioned in the subcutaneous tissue and the lead assembly is configured to be positioned in a vessel of the patient, such as in a vein or in an epidural space. The lead assembly has a lumen, and includes at least one electrode in electrical communication with the electronics assembly.

Systems, devices, and methods allow for electrical stimulation to be applied to an epidural space of a spinal cord of a patient. A system comprises a lead head comprising a plurality of conductive electrodes. At least one conductor is constructed and arranged to deliver electrical stimulation signals to the plurality of conductive electrodes. A stimulation source is electrically coupled to the at least one conductor that generates the electrical stimulation signals. In some embodiments, an expansion system modifies an area of coverage of the conductive electrodes. In some embodiments, a spatial modification system modifies a spatial orientation of the lead head.

In one embodiment, a method of implanting a stimulation lead to stimulate a dorsal root ganglion (DRG) of a patient, comprises: placing a distal portion of the stimulation lead within an implant tool; accessing the epidural space of the patient with the distal end of the implant tool; contacting a surface of a pedicle of the patient with a distal tip of the implant tool above a foramen leading to a target DRG; after contacting the surface of the pedicle with the distal tip, advancing the stimulation lead from a side port of the implant tool, wherein the side port is located proximal to the distal tip of the implant tool; advancing the stimulation lead through the foramen to position one or more electrodes of the stimulation lead adjacent to the target DRG; and providing electrical stimulation to the target DRG to stimulate the target DRG using one or more electrodes of the stimulation lead.

The present invention relates to a fiberscope surgical system for epidural space, which belongs to the technical field of medical devices and solves the technical problem that the fiberscope is easy to touch or damage the surrounding tissues or nerves when inserting and operating in the epidural space. The fiberscope surgical system of the present invention includes a fiberscope, a nerve baffle assembly and a puncture needle; the tube portion of the fiberscope is bendable; the nerve baffle assembly includes a baffle body, a first operating mechanism and a limit assembly, and the nerve baffle assembly is detachably sleeved on the periphery of the tube portion and the lens portion; the first operating mechanism includes a baffle pulling wire, a baffle pulling portion and an elastic component; the puncture needle includes a second operating mechanism and a needle tube, and a guide portion and a fixed portion are provided at the opening of the needle tube, and the guide portion is rotatably connected to the fixed portion. The fiberscope surgical system of the present invention can control the insertion direction of the tube portion, effectively shield the nerves, and provide a safe and high-precision surgical system for epidural space surgery.

Devices, systems, and techniques for determining medical lead placement are described. In one example, a system includes sensing circuitry configured to detect, via a lead, a bioelectric signal of the patient, wherein the lead comprises one or more electrodes, and wherein the lead is configured to be located in an epidural space of a patient and displaced laterally from a dorsal horn of the patient. Additionally, the system includes processing circuitry configured to determine, based on the bioelectric signal, a proximity of each electrode of the one or more electrodes to a dorsal root of the patient; and output information indicative of the proximity of each electrode of the one or more electrodes to the dorsal root.

The application discloses an epidural space puncture robot system and relates to the field of surgical instruments.The control system of the system comprises a pressure feedback module, an image recognition module, a contrast module, a path planning module, a lesion recognition module and a man-machine interaction module.The execution mechanism comprises a puncture needle module and a delivery module.The puncture needle module is connected with the pressure feedback module, the image recognition module, the contrast module, the lesion recognition module and the man-machine interaction module respectively.The path planning module is connected with the pressure feedback module, the image recognition module, the contrast module and the lesion recognition module respectively.The man-machine interaction module is connected with the pressure feedback module, the image recognition module, the contrast module, the path planning module and the lesion recognition module respectively.The application can accurately and reliably treat lesions, and can increase the success rate, reliability and efficiency of puncture injection operations.

The description pertains to an epidural simulator 100 which is capable of simulating variable depths from the patient's skin to the epidural space to represent variable patient anatomy. The epidural simulator is comprised of a base plate, a back screen, a ligament holder and an adjustment mechanism. The back screen has at least one hole sized to allow an epidural needle to pass therethrough. The back screen is coupled to said base plate and oriented in a generally parallel fashion to the ligament holder. The ligament holder is coupled to the base plate and configured to secure a removable simulated ligament. It is configured in such a manner to expose at least part of the removable simulated ligament on a first side of the ligament holder between the ligament holder and the back screen. The distance between the back screen and the ligament holder is variable by means of the adjustment mechanism to mimic different patient body types.