66 results about "Nerve block" patented technology

The invention discloses an artificial intelligence lumbar plexus block ultrasound image recognition and puncture guiding method and device, and the method comprises the steps: carrying out the image segmentation of a lumbar plexus block ultrasound image when the site type information of the lumbar plexus block ultrasound image is a preset site type, and obtaining a preset site type of the lumbar plexus block ultrasound image; obtaining a plurality of tissue segmentation regions, a puncture needle segmentation region and region categories of the plurality of tissue segmentation regions on the lumbar plexus block ultrasound image; generating a puncture direction line of the puncture needle on the lumbar plexus block ultrasound image based on the puncture needle segmentation region; judging whether the puncture direction line passes through a puncturable type tissue segmentation region or not; if the puncture direction line passes through the puncturable type tissue segmentation area, judging whether the puncture direction line passes through the evasion type tissue segmentation area or not; if the puncture direction line does not pass through the avoiding type of tissue segmentation area, an instruction of continuing puncture according to the current puncture direction is sent out. According to the invention, the accuracy of lumbar plexus block ultrasonic image recognition and puncture guide can be improved.

Chronic pain management can be achieved by electrically anesthetizing a peripheral nerve with on-demand electrical nerve block (OD-ENB). OD-ENB can be provided by an implantable capsule. Externally, at least a portion of the capsule can be constructed of a conductive membrane and the rest of the capsule comprises a biocompatible material. A blocking electrode contact, a return electrode contact, and a powering / communication component can be within the capsule. The blocking electrode contact can deliver a direct current (DC) through a portion of the conductive membrane to block conduction in the neural tissue to provide the OD-ENB. The return electrode contact can receive a return current from the neural tissue through another portion of the conductive membrane. The powering / communication component can communicate with one or more external components located external to the patient's body to receive a power signal. Notably the capsule has no internal battery.

At least one therapy (e.g., one or more of photobiomodulation (PBM), pharmaceutical nerve block, electrical nerve block, temperature-based nerve block, etc.) can be delivered to a target nerve by a surgical tool through a surgical opening (e.g., during surgery) to manage post-operative pain. The at least one therapy can reduce or eliminate the need for analgesics to reduce post-operative pain. The at least one therapy can include at least one dose of light for PBM to selectively silence conduction in small fibers within the target nerve that are known to cause post-operative pain for a time (e.g., extending after the surgery). Doses of the at least one therapy can be determined and provided by a controller in communication with the surgical tool.

The utility model discloses a nerve block needle which comprises an outer tube part, an inner tube part, a needle head and a driving mechanism, the inner tube part is located on the inner side of the outer tube part, the needle head is installed at one axial end of the inner tube part, and the driving mechanism is connected with the inner tube part. The driving mechanism is configured to be capable of driving the inner tube part and the needle head to move relative to the outer tube part so as to be switched between a first position and a second position; at the first position, the needle head is contained in the outer tube part, and at least part of the needle head extends out of the outer tube part at the second position. The nerve block needle can reduce injury to a patient and is convenient to operate.

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.

Disclosed herein are systems and methods for treating certain medical conditions by implanting a specialized implant within a patient and applying electrical current, ultrasound, or both to a kidney or locations adjacent to a kidney to stimulate kidney activity. In some examples, electroporation, sonoporation, and / or transient nerve block may be created to selectively improve kidney function and thereby treat a variety of different diseases.

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.

Methods and apparatus (e.g., devices, systems, etc.) for applying a therapeutic dose of electrical energy from a nerve sheath to a nerve to modulate neurological function, including mitigating pain, may include using a normalized therapeutic dose value (or range of values) indicative of a target therapeutic charge dose to be applied. The devices and methods may determine a parameter of the applied energy using an impedance value of the nerve at the nerve sheath and a cross-sectional area of a region of the nerve at least partially surrounded by the nerve sheath in combination with a target normalized therapeutic dose value (s). In particular, the parameter may be a parameter required to achieve high frequency nerve block at a target normalized therapeutic dose value (s).

The invention discloses an intercostal nerve block injection device, comprising a needle tube, a needle and a rotating injection seat, wherein one end of the needle tube is connected with the needle tube, a piston column is fixed to the inner wall of the other end of the needle tube, a rotating injection seat is arranged on the outer wall of the other end of the needle tube, a plurality of liquid discharge pinholes are provided on the needle tube, the plurality of liquid discharge pinholes are arranged circumferentially along the axis of the needle tube, the plurality of liquid discharge pinholes are all connected with the needle tube, a plurality of injection ports are provided on the piston column, the number of the injection ports is consistent with the number of the liquid discharge pinholes, the plurality of injection ports are arranged circumferentially along the axis of the piston column, the plurality of liquid discharge pinholes are all connected with different injection ports through liquid discharge pipes, the plurality of liquid discharge pipes are all located in the needle tube, a syringe tube connected with the needle tube is provided on the rotating injection seat, and the plurality of injection ports are all located on the rotating path of the syringe tube. It has a large anesthesia range, and avoids multiple puncture anesthesia to increase the patient's pain.

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.

A temporary wearable device, in the form of a cuff with electronics and arrays of skin electrodes, attachable to a limb at specific locations above various joints. When activated, such as by wireless actuation, the device stimulates specific nerves of interest to temporarily block pain signals with quick response and in a reversible manner without any permanent nerve damage to the animal.

The utility model discloses an anesthetic needle auxiliary use component for nerve block surgery, which belongs to the technical field of anesthetic surgery and comprises a support frame and an anesthetic needle. A lifting adjusting assembly for driving an anesthetic needle to adjust the angle is arranged on the supporting frame, the lifting adjusting assembly is in sliding fit with the supporting frame, and an adjusting frame hinged to the front portion of the supporting frame is arranged on the lifting adjusting assembly; a displacement adjusting assembly for driving the anesthetic needle to move is arranged on the adjusting frame, and the anesthetic needle is horizontally arranged on the displacement adjusting assembly; the displacement adjusting assembly is provided with a locking structure used for fixing the anesthetic needle. The injection anesthesia depth can be controlled through the displacement adjusting assembly when the anesthetic needle moves, accurate control can be conducted through the marking ruler, and the situation that the anesthetic needle deviates or shakes in the anesthesia injection process, and operation is affected can be avoided.

The invention relates to the technical field of machine vision, and provides a thoracic trunk nerve block auxiliary system, which comprises a wireless ultrasonic probe device used for collecting an ultrasonic image of a thoracic trunk nerve block area of a patient based on a thoracic trunk nerve block scheme of the patient; the thoracic trunk nerve block scheme is generated by the mobile terminal device based on multi-dimensional individual feature information of the patient; the mobile terminal device is used for determining an anatomical structure and a target retardation area based on the ultrasonic image; generating a blocking path based on the thoracic trunk nerve blocking scheme, the anatomical structure and the target blocking area; the target retardation area is an injection area of local anesthetics; and the augmented reality glasses device is used for displaying the ultrasonic image, the anatomical structure, the target retardation area and the retardation path on the real view image of the patient in an overlapping manner. According to the method, individualized retardation scheme recommendation, real-time ultrasonic visual guidance and dynamic retardation path planning are realized, the retardation success rate is improved, and the operation difficulty is reduced.

The invention relates to the technical field of child anesthesia auxiliary instruments, and discloses a multifunctional area block anesthesia body position placement affected limb protector, which comprises a soil type throw pillow mechanism for placing a child body position; the soil type bolster mechanism comprises a soil type supporting device, a plurality of belt rings are arranged at the top of a bottom transverse main pipe of the soil type supporting device, a hook-and-loop fastener belt is arranged between every two belt rings in a penetrating mode, and a soil type supporting mechanism is arranged in the soil type supporting device; the headrest mechanism is used for placing the head of the child; and the intelligent dynamic regulation and control system is used for dynamically regulating the headrest mechanism and the soil type supporting mechanism. Trunk-diseased limb supporting is achieved through the bionic curved surface and the intelligent adjustable constraint device, and lumbar vertebra buckling and diseased limb abduction stability are guaranteed; the dynamic air bag system senses body position deviation in real time and adjusts the pressure ratio, and gravity traction damage is avoided; the medical silica gel and dual-redundancy pressure relief design reduces osteopathy compression, and meets the requirements for child skin protection and nerve block operation space.

An improved anesthetic nerve block and method is disclosed, including a dispenser including a reservoir body, a transfer body, and a tip for positioning near a nerve. The local short-acting anesthetic is located within the reservoir. And the physiological carbonate base is positioned in the storage body. The local short-acting anesthetic and the physiological carbonate base are dispensed from a tip portion of a dispenser, wherein the local short-acting anesthetic promotes the physiological carbonate base to penetrate the neural membrane and into the axon. A local long-acting anesthetic is located within the reservoir. The topical long-acting anesthetic is dispensed from the tip of a dispenser and penetrates the neural membrane and into the axon. The topical long-acting anesthetic and the physiological carbonate base cause precipitation and form a crystalline compound that is used to produce a prolonged local nerve block.

There is provided a transvenous approach for accessing and targeting neural treatment sites to relieve a variety of clinical indications, including peripheral neuropathy. A neurosome approach is described that includes one or more target nerves to receive selective cryoneurolysis via a target vein. A range of different freeze and thaw cycles are performed via the target vein to induce a desired thermal treatment temperature range for selective sensory loss without adverse impact or minimal impact to associated motor nerves. The target nerves and veins are selected to combine the treatment of the identified neurosome for pain relief in addition to the regenerative properties of cryoneurolysis.

The invention discloses nerve block pulse magnetic treatment equipment, and relates to the technical field of medical equipment, the nerve block pulse magnetic treatment equipment comprises an outer shell, the outer shell comprises a hollow frame body and side frames mounted at two ends of the hollow frame body, and three groups of massage mechanisms arranged in parallel are arranged in the hollow frame body; the massage mechanism comprises a supporting frame and a magnetic head massager movably arranged in the supporting frame, and a power shaft matched with the magnetic head massager to push the magnetic head massager to swing up and down is further installed in the supporting frame. A pulse main machine is further assembled in the side frame and electrically connected with the magnetic head massagers in parallel through a circuit, the power shaft can push the folding rod at the broken position to rotate, and under cooperation of the supporting connecting rod, the magnetic head massagers can be pushed to continuously swing up and down so as to press and relieve the treated position of a patient. While the massage effect is achieved, the pulse host generates pulses and outputs the pulses to the human body through the magnetic head massager, so that treatment is facilitated.

The present invention discloses an ultrasonic nerve block puncture injection device, including an infusion pump and an injection handle, wherein a handle embedding groove is provided on one side of the infusion pump, the injection handle is snap-connected to the inner side of the handle embedding groove, a syringe mounting groove is provided on the lower end of one side of the infusion pump, a syringe medicine tube is snap-connected to the inner side of the syringe mounting groove, and a push rod is slidably connected to the inner side of the syringe mounting groove. The present invention, by providing an injection handle, allows an anesthesiologist to hold an ultrasonic probe in one hand and an injection handle equipped with a puncture needle body in the other hand, so as to accurately complete the puncture and injection of nerve block. On the other hand, the use of a photoelectric sensor light emitter and a photoelectric sensor receiver in the injection handle can accurately and timely feedback whether there is blood in the back-absorption process to the anesthesiologist who is operating, so that one person can complete the ultrasonic nerve block puncture and injection.

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 utility model belongs to the field of medical instruments, and discloses an ultrasonic probe sterile protection fixer convenient for anesthesia puncture of nerve block, which comprises a base device for binding and fixing a body, and a bracket device which is arranged on the base device and is used for sliding to change the position, a clamping device for clamping and fixing an ultrasonic probe is mounted on the bracket device; the support device comprises two sliding seats which are symmetrically arranged, first locking nails are installed on the outer sides of the sliding seats, and a fixing frame is fixedly arranged between the sliding seats. The clamping device comprises a clamping frame, and a third locking nail is installed in front of the clamping frame. According to the ultrasonic probe sterile protection fixator facilitating anesthesia puncture of nerve block, through the arrangement of auxiliary fixation, the infection probability is reduced, an ultrasonic probe is prevented from sliding, nerve block puncture is facilitated, and more accuracy is achieved; due to the arrangement of multi-dimensional adjustment, the convenience of positioning adjustment is improved; and through the arrangement of screwing and fixing of the locking nail, the operation convenience is improved.

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.