28 results about "Nerve block" patented technology

Provided herein are methods of nerve blockage, for example for treatment of obesity, heart failure, cardiovascular disease, muscle spasms, chronic pain, or urinary retention in a patient. The method comprises first heating a nerve above physiological temperature (e.g., 37° C. in a human), such as from 43° C. to 54° C. for a duration that leads to reversible nerve blockage as opposed to nerve damage. Second, reversible nerve blockage is produced by cooling the nerve below physiological temperature to a temperature in which reversible nerve blockage is achieved, for example from 15° C. to 30° C.

The invention discloses a compound with a local anesthesia function as well as a preparation method and application thereof, and belongs to the technical field of biological medicines. The preparation method of the compound comprises the following steps: mixing and heating lidocaine and 2-bromoethanol to obtain a compound 1; the preparation method comprises the following steps: mixing dicarboxylic acid, N-hydroxysuccinimide, 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride and a solvent to obtain a mixed solution; mixing and dissolving a compound 1, alkali and a solvent, and then adding into the mixed solution; and then carrying out spin-drying, separation and purification to obtain the compound with the local anesthesia function. The medicine can be used as a local anesthetic or analgesic for long-acting nerve block or selective nerve block. The medicine can block nerve conduction, has biocompatibility and biodegradability, is expected to overcome the problems of short time efficiency of single-needle injection and the like, and improves the efficacy of the medicine.

The utility model provides a nerve block puncture device which comprises a needle body, scales, a needle head, an oblique-angle needle tip, an injection hole, an injection needle connector and a first hose. The scales are arranged on the surface of the needle body and used for displaying the length of a needle inserting path and the needle inserting depth at a specified needle inserting angle. A needle head is arranged at the first end of the needle body, and an oblique-angle needle tip is arranged at the end, away from the needle body, of the needle head and used for penetrating tissue. An injection hole is formed in the face, away from the oblique-angle needle tip, of the surface of the needle head and used for injecting liquid medicine. The second end of the needle body is provided with an injection needle connector, the injection needle connector is used for connecting the needle body and a first hose, and the first hose is used for conveying liquid medicine to the needle body. The length of the needle inserting path and the needle inserting depth under the specified needle inserting angle are displayed through the scales, and a puncture needle is prevented from entering too deep. The injection hole is formed in the side, away from the oblique-angle needle tip, of the needle head, and skin and skin tissue are prevented from entering the body due to the needle tip opening.

The application discloses a controllable injection equipment for nerve block under ultrasonic guidance in the technical field of medical devices, which comprises a mounting device, a puncture mechanism and an injection mechanism are arranged in the mounting device, the puncture mechanism comprises a puncture tube arranged in a fixed sleeve, a puncture needle is connected to the front end of the puncture tube, a sealing plug is arranged in the puncture needle, a rubber plug is connected to the rear end of the sealing plug and arranged in the puncture tube, the puncture mechanism can avoid the human body tissue from entering the puncture needle and causing blockage in the puncture process, the sealing plug is inserted into the puncture needle, the firmness of the overall structure is improved, the puncture mechanism is not prone to bending or surface depression in the puncture process, the injection efficiency is reduced, and the puncture mechanism can be better inserted when being inserted into the tissue which is strong in toughness or has a slippery surface covered with body fluid.

The invention relates to an auxiliary fixing support for ultrasound-guided nerve block puncture, belongs to the field of ultrasound guidance, and aims to solve the problems that the negligence possibility is greatly increased especially when a doctor suffers from fatigue due to complex illness conditions, emergency operations or long-time high-intensity work, and a plurality of puncture needles are possibly involved in each puncture, so that the puncture difficulty is reduced. The ultrasonic-guided auxiliary fixing support for nerve block puncture solves the problem that if a previous puncture needle is not fixed well, the previous puncture needle may be touched when next puncture is carried out, then nerves are injured by the puncture needle, and the injury risk of a patient is undoubtedly increased, the ultrasonic-guided auxiliary fixing support for nerve block puncture comprises a first supporting frame, and a second supporting frame is arranged on the first supporting frame. By arranging the pushing mechanism, a doctor can choose to rotate the pushing mechanism in order to ensure that both hands can operate a puncture needle when puncturing, so that the puncture needle can be fixed to a certain extent, and the risk that a patient is injured is reduced.

The invention is suitable for the technical field of medical instruments, and provides an ultrasound-guided nerve block one-man operation mechanical decoupling integrated puncture and injection device which comprises an integrated control puncture handle, a sterile extension pipeline, a power execution host, a safety control interlocking module and a liquid medicine container with scales and a piston. The integrated control puncture handle is in fluid communication with a liquid medicine container with scales and a piston through a sterile extension pipeline, the liquid medicine container with the scales and the piston is detachably installed on the top of the power execution main machine, and the safety control interlocking module is internally arranged and fixed in the power execution main machine. The safety control interlocking module is in signal connection with the integrated control puncture handle and the power execution host respectively; according to the invention, the design of the independent control of the integrated control puncture handle is matched with multi-module linkage and single-hand holding, so that the whole-process operation can be completed, the personnel configuration limitation is thoroughly broken, the technical application coverage is greatly improved, and the device is adaptive to primary medical and emergency treatment fields.

Controlled heating can be used to achieve selective nerve block of certain neural fibers. As an example, the selective heat-induced neural modulation can be used for pain management. A controller can determine an amount of energy to be delivered to a heat delivery component of a neural prosthetic device for conversion to a heat signal and application to a nerve to block neural conduction in at least a portion of the nerve. The amount of energy to be delivered is determined based on a thermal dose profile. The controller can receive a signal comprising a temperature of the nerve when the heat signal is applied to the nerve; and alter the amount of energy received by the heat delivery component based on the temperature of the nerve so the amount of energy follows the thermal dose profile, and the temperature of the nerve remains within an allowable range.

The utility model aims at providing a nerve block needle which reduces puncture needle block and facilitates control of drug entry. The utility model discloses a needle handle, a puncture needle fixedly connected with one end of the needle handle for puncture, a flow control assembly detachably connected with the other end of the needle handle for controlling drug flow, a protective sleeve detachably connected with the lower end of the needle handle, and a flow tube arranged at one end of the flow control assembly for flowing in drug. The flow control assembly comprises a connecting block detachably connected with the needle handle, a control piece slidably connected with the connecting block for controlling drug flow, and a plurality of elastic members arranged at one end of the connecting block and in top pushing cooperation with the control piece. The connecting block is formed with the flow tube for drug flow. One side of the connecting block is formed with a slot for slidable connection of the control piece. The plurality of elastic members are arranged at the bottom of the slot. The control piece is provided with a flow hole for drug to pass through. The utility model is applied to the technical field of nerve block needles.

The invention discloses an anesthesia puncture needle positioning probe for nerve block under the guidance of B ultrasound, and relates to the technical field of ultrasonic puncture. The B-ultrasonic probe comprises a B-ultrasonic probe body and a puncture needle, a handheld cylinder is fixedly connected to the upper side of the B-ultrasonic probe body, the puncture needle is located in the handheld cylinder, a groove corresponding to the handheld cylinder is formed in the lower portion of the B-ultrasonic probe body, a fixing base is arranged in the handheld cylinder in a sliding fit mode, and the center line of the groove coincides with the tangent plane of the B-ultrasonic probe body. The fixing base is arranged in the handheld cylinder, the driving piece drives the threaded rod to rotate through the self-locking transmission assembly, the threaded hole in the movable arc-shaped clamping plate is in threaded fit with the threaded rod, so that the movable arc-shaped clamping plate can move in the axial direction of the threaded rod, then the puncture needle is clamped or loosened, and the operation process is simple and convenient.

Disclosed are methods of treating pain by administering cyclodextrin which is majority unoccupied with a guest compound. The cyclodextrin may also be occupied with an inert molecule or agent as a guest, such as proline. Attenuation of pain treatment due to cyclodextrin may be performed by administration of an inert molecule or agent as a guest, such as proline, either before, after or simultaneously with administration of cyclodextrin.

The invention relates to the technical field of medical images, in particular to a nerve anesthesia puncture auxiliary positioning method based on an ultrasonic image, which comprises the following steps: acquiring a real-time ultrasonic image of a target area; carrying out automatic identification and segmentation on a neural structure in the ultrasonic image; fusing the probe space pose data acquired by the electromagnetic positioning system with the three-dimensional coordinates of the puncture needle; projecting a neural structure position and a virtual needle insertion path guide line on augmented reality display equipment in real time; compared with the prior art which depends on manual visual inspection of an ultrasonic image to position a neural structure and has the defects of high subjectivity, high requirement on operator experience and low minor nerve tract recognition rate, the scheme adopts a deep learning model based on an improved U-Net + + architecture; millimeter-level accurate recognition and segmentation of a neural structure are achieved in combination with a multi-modal fusion enhancement technology, the definition and stability of neural development under complex anatomical conditions are remarkably improved, and a reliable anatomical basis is provided for puncture path planning.

The utility model provides ultrasound-guided nerve block puncture equipment, which comprises a connecting clamp and a carriage with a U-shaped structure, the connecting clamp is detachably and fixedly arranged on an ultrasonic probe, the two sides of the carriage are respectively connected with the two sides of the connecting clamp in a sliding manner, the middle part of the carriage is provided with an adjusting mechanism, and the adjusting mechanism is connected with the connecting clamp in a sliding manner. A supporting plate is detachably and fixedly arranged at the position, below the adjusting mechanism, of the bottom of the sliding frame, a puncture needle positioning cylinder is fixedly arranged at the bottom of the supporting plate, and the included angle alpha between the puncture needle positioning cylinder and the horizontal plane is 45 degrees. According to the utility model, the distance between a needle inlet point and a probe and the angle of a puncture needle can be accurately controlled, the treatment effect is ensured, and unnecessary pain of a patient is reduced.

The application discloses a kind of distributed optical fiber sensing continuous nerve block catheter system and method, it is related to medical instrument technology technical field.To solve the problem that existing catheter cannot be visualized, cannot identify tissue type, cannot dynamically adjust infusion, the system includes: flexible catheter main body with injection cavity and side hole;Shape sensing optical fiber and force sensing optical fiber buried in pipe wall;Electric control micropump;Signal processing unit.Signal processing unit reconstructs the three-dimensional morphology of catheter based on strain signal, analyzes the waveform characteristics of force signal, determines the contact tissue as nerve, fascia or blood vessel.When contacting nerve, infusion is not more than 30% of maximum infusion rate;When fascia breakthrough, maintain parameters and record coordinates;When adjacent to blood vessel, reduce to zero or not more than 5% and alarm.The system is used for continuous nerve block, realizes hierarchical closed-loop drug delivery, improves catheterization accuracy and drug safety.

The invention belongs to the field of medical instruments, and discloses an ultrasound-guided nerve block puncture device which comprises a puncture catheter unit and a subcutaneous tunnel unit and further comprises a pasting part and a clamping part. The puncture indwelling catheter unit comprises a puncture needle and an indwelling catheter, the puncture needle and the indwelling catheter jointly pierce from a first puncture point, and after the puncture needle reaches a target area, the indwelling catheter is axially pushed to the target area along the puncture needle; the subcutaneous tunnel unit is used for puncturing from the second puncture point, the puncture needle is slidably connected to the interior of the indwelling catheter, and a subcutaneous tunnel for the tail end of the indwelling catheter to penetrate through is constructed between the first puncture point and the second puncture point; the indwelling catheter is arranged on the outer side of the puncture needle in a sliding and sleeving mode, the puncture needle provides rigid support for the soft indwelling catheter, guidance is provided for movement of the indwelling catheter, and it is ensured that the indwelling catheter can reach a target area along a preset track; and the problem that the indwelling catheter is easy to deviate and distort due to secondary catheter indwelling after needle withdrawing in the traditional method is effectively avoided.

The invention discloses an ultrasonic probe fixing frame for nerve block, and relates to the technical field of medical instruments. The moving rod is mounted in the bottom frame in a sliding manner; the adjusting mechanism is mounted between the two sides of the top end of the moving rod; a probing mechanism; through cooperative work of the telescopic frame, the telescopic driving assembly, the adjusting frame, the first ultrasonic probe, the second ultrasonic probe and the guide block, the ultrasonic probes are stably fixed with the adjusting frame as the core, the telescopic driving assembly drives the telescopic frame to flexibly move, the adjusting frame accurately adjusts the angle and the distance between the two ultrasonic probes, and the ultrasonic probes can be stably fixed. And the low-frequency curved-surface probe and the high-frequency linear probe are combined, so that accurate three-dimensional space positioning is realized, the complex spatial relationship between cranial nerves and surrounding blood vessels and bones can be comprehensively displayed, synchronous scanning in different directions can be realized, a puncture path can be monitored in real time, accidental injury to the blood vessels or nerves is avoided, and serious complications such as bleeding and infection are prevented.

1. The name of the design product: lumbar puncture needle. 2. The use of the design product: for human epidural nerve block, subarachnoid block, nerve block puncture. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: design 1 combination state diagram. 5. Design 1 is designated as the basic design.

The invention relates to the technical field of medical equipment, in particular to a nerve block needle assembly capable of being operated by one hand and a using method thereof. A nerve block needle assembly capable of being operated by one hand comprises a needle tube, an adjusting shell and two adjusting mechanisms. Each adjusting mechanism comprises an adjusting rod and a rubber wheel. The adjusting shell is held by a hand, the two fingers abut against the two adjusting rods respectively, and the adjusting shell abuts against the skin. And then the two adjusting rods are pushed to be close to each other, so that the two rubber wheels rotate oppositely to drive the needle tube to move in the direction close to the skin. As the adjusting shell is attached to the skin, the contact position of the needle tip and the skin can be operated and controlled more accurately, and the situation that the needle tube deviates from a target area due to slight shaking of the hand is prevented. The invention provides a nerve block needle assembly capable of being operated by one hand and a using method thereof, and aims to solve the problem that when an existing nerve block needle is just inserted into the skin, the needle point is far away from a hand-held needle base, and consequently the needle point is prone to deviating from a target area.

A system and method for prostate cancer treatment under local anesthesia includes creating a superficial skin and subcutaneous block in a perineal area of a patient by administering a first anesthetizing agent; creating a deep nerve block under ultrasound guidance by administering a second anesthetizing agent, the second anesthetizing agent infiltrating cavernosal nerve bundle tissue and periprostatic space; and ablating prostate tissue. The office-based method, statistical models and computer generated treatment plans identify and ablate prostate tissue containing cancer through or via the perineum while preserving prostate function, and critical anatomical structures. Multiple technologies are integrated and processed to deliver a safe treatment procedure, under local anesthesia by integrating the information of magnetic resonance imaging and planning the ablative treatment using algorithms that ensure maximal precision in both killing cancerous tissue and preserving healthy tissue along with its corresponding function.

Disclosed are methods of treating pain by administering cyclodextrin which is majority unoccupied with a guest compound. The cyclodextrin may also be occupied with an inert molecule or agent as a guest, such as proline. Attenuation of pain treatment due to cyclodextrin may be performed by administration of an inert molecule or agent as a guest, such as proline, either before, after or simultaneously with administration of cyclodextrin.

The invention belongs to the technical field of medical instruments and discloses a nerve block injection device which comprises an injection cylinder and a mounting strip, scale marks are arranged on the surface of the mounting strip, a quantitative assembly is arranged in the mounting strip and comprises a push rod and a fixing strip, and a plurality of main positioning holes and a plurality of auxiliary positioning holes are formed in the top surface of the fixing strip. The push rod is located over the fixing strip, the tail end of the push rod is connected with the tail end of the piston rod, a positioning pin and a positioning spring are arranged at the head end of the push rod, a moving part is arranged in the fixing strip, and a fixing column on the top face of the moving part is located in the auxiliary positioning hole. The liquid volume can be clearly observed through the scale marks on the mounting strips; the push rod and the piston rod move together, the positioning pin slightly extends into the holes when moving to the main and auxiliary positioning holes, if the piston rod needs to be pushed continuously, larger resistance can be felt, it is indicated that injection can be continued by pushing the piston rod slightly and enabling the positioning pin to retreat from the holes when the preset single-time injection amount is reached, and the device can assist medical staff in quantitative injection.

The invention relates to the technical field of medical instruments, in particular to a nerve block puncture guide frame for orthopedic surgery. The angle fan is connected with the side part of the connecting frame, and an angle mark is arranged on the surface of the angle fan; the guiding device is rotationally arranged on the angle fan and is concentrically distributed with the angle fan, the extension line of the guiding device intersects with the length axis of the ultrasonic probe, the guiding device is used for penetrating and guiding a puncture needle, the guiding device is provided with a fixing bolt connected with the angle fan, and the fixing bolt can fix the position of the guiding device. And through the cooperation of the connecting frame, the angle fan and the guider, the requirements of different puncture environments can be quickly met by adjusting the position and orientation of the guider.

The invention discloses a nerve block analgesia system and a control method, and the system comprises a current excitation and monitoring device which comprises a positive electrode interface and at least four negative electrode interfaces; the catheter tip is connected with the positive electrode interface of the current excitation and monitoring device; the at least four body surface electrodes are respectively connected with the at least four negative electrode interfaces of the current excitation and monitoring device; in a monitoring mode, the current excitation and monitoring device outputs a current signal with a set size through the positive electrode interface, and monitors the resistance value of each loop between the positive electrode interface and the at least four negative electrode interfaces; and determining whether the tip of the catheter shifts or not and the shifting direction according to the comparison result of the real-time resistance value of each loop and the corresponding initial resistance value. The device can act on the whole process of analgesia, including initial positioning, catheter tip displacement monitoring in an indwelling stage and dosing position offset correction during displacement.

The utility model relates to the technical field of medical auxiliary instrument especially is a nerve block needle single person injection administration auxiliary device, its with nerve block needle connection is connected to medicine discharge structure, under the ultrasonic probe, the nerve block needle is pricked into the designated position, then through the piston structure carries out the back -and -forth drawing, detects whether there is blood, after confirming that there is no blood, through the piston structure absorbs the local anaesthetic in the storage structure, and through the medicine discharge structure is arranged into the patient's body with local anaesthetic, thereby improving the practicality of nerve block needle single person injection administration auxiliary device, including storage structure, still including piston structure and medicine discharge structure, and the storage structure and medicine discharge structure all install on the piston structure, the storage structure carries out the storage to local anaesthetic, and the piston structure cooperates medicine discharge structure and carries out back -and -forth drawing detection and local anaesthetic injection.

1. The name of the design product: needle for anesthesia (lumbar puncture needle). 2. The use of the design product: for human epidural nerve block (epidural anesthesia), subarachnoid block (lumbar anesthesia), epidural and lumbar combined anesthesia, nerve block local anesthesia. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: assembly state diagram.

The invention relates to the technical field of anesthesia effects, in particular to a regional anesthesia nerve block effect evaluation and supplementary administration decision-making system. Comprising the following steps: acquiring the body position and various physical sign parameter time sequence data of a patient after anesthesia retardation; when the nerve block effect changes, contributions of different parameters are different, so that numerical value characteristics are analyzed to determine a deviation index at each moment, a deviation moment and a stable moment are screened out, and then the time sequence relation among the deviation index, the deviation moment and the stable moment is compared in all physical sign parameter time sequence data to determine the contribution weight of each physical sign parameter; in view of the fact that the change of the surgical posture may cause abnormal fluctuation of physical sign parameters, abnormal moments are determined, the sequential relationship between a posture value change node and the abnormal moments, deviation index distribution difference and contribution weight are analyzed, a retardation effect value at each abnormal moment is determined, and real nerve retardation effect fluctuation and posture interference fluctuation are distinguished; and finally, determining a risk index according to the retardation effect value to realize drug administration early warning.

The application discloses a nerve block analgesia system and a control method, wherein the system comprises: a current excitation and monitoring device, which comprises a positive electrode interface and at least four negative electrode interfaces; a catheter tip connected with the positive electrode interface of the current excitation and monitoring device; at least four body surface electrodes connected with the at least four negative electrode interfaces of the current excitation and monitoring device; and the current excitation and monitoring device outputs a current signal with a set size through the positive electrode interface in a monitoring mode, monitors the resistance values of each loop between the positive electrode interface and the at least four negative electrode interfaces, and determines whether the catheter tip is displaced and the displacement direction according to the comparison result of the real-time resistance value of each loop and the corresponding initial resistance value. The application can be used in the whole process of analgesia, including initial positioning, catheter tip displacement monitoring in the indwelling stage and drug position offset correction during displacement.

The application relates to the technical field of medical equipment, and discloses a nerve block device which comprises a component mounting sleeve fixedly installed at the bottom of a main mounting plate, a driving motor fixedly installed at the bottom of the component mounting sleeve, and a control-loaded linkage mechanism, the structure of the control-loaded linkage mechanism comprises an inner rotating column rotating with the rotor of the driving motor, a hollow disc body capable of driving a central rotating shaft to rotate, and an arc-shaped abutting plate capable of linking the hollow disc body and the inner rotating column through friction. The nerve block device can be clamped into the outer circumferential surface of an anesthetic injection needle cylinder with different radii, so that the adaptability and practicability of the equipment are improved. In addition, the device can automatically push the anesthetic, so that the operation difficulty of doctors is reduced, the injection precision of the medicine is improved, and the secondary injury degree of the patient is reduced.