55 results about "Nerve Blockade" patented technology

The invention relates to the technical field of medical image recognition, in particular to an ultrasound-guided nerve block liquid medicine diffusion image recognition method, which comprises the following steps of: dynamically analyzing a set with external expansion morphological feature points on a liquid medicine diffusion boundary to construct directional data representing a diffusion trend, and performing density statistics on the directional data to obtain an image recognition result; therefore, the dominant direction of liquid medicine diffusion in space is accurately identified, judgment is carried out in combination with the change trend of the dominant direction in a continuous time frame, a time slice with the stable and continuous direction is screened out, then the method goes deep into a liquid medicine coverage area, the consistency between the pixel gray scale gradient change and the nerve fiber anatomy trend is compared, and the accuracy of the nerve fiber anatomy is improved. Finally, effective classification of the diffusion paths is realized, an effective diffusion area conforming to the trend of the neural structure and a non-dominant diffusion area towards other tissues can be clearly distinguished, and the accuracy and clinical reference value of an identification result are greatly improved.

The invention provides a U-Net-based method for realizing ultrasonic guidance to assist in spischial nerve block of popliteal fossa and application, and relates to the technical field of medical image processing. The method comprises the following steps: constructing a popliteal space ultrasonic data set and a U-Net model suitable for identifying a target tissue in a popliteal space ultrasonic image; the U-Net model comprises an encoder, a decoder and a jump connection structure for connecting the encoder and the decoder; wherein the encoder comprises a plurality of encoder blocks; an efficient cascade multi-scale cavity convolution ECMAC and ESAM space attention mechanism is executed in sequence in each encoder block; an encoder cross-regional feature fusion structure is arranged in the encoder; the decoder comprises a plurality of decoder blocks with an ESAM space attention mechanism; a decoder cross-regional feature fusion structure is arranged in the decoder; acquiring a popliteal space ultrasonic image through ultrasonic probe equipment; and performing segmentation identification on the acquired popliteal space ultrasonic image by using the trained U-Net model so as to extract image features of the target tissue in the popliteal space ultrasonic image. Through the improved U-net model, the accuracy of popliteal ultrasonic image segmentation identification is improved, and an analysis tool is provided for realizing ultrasonic guidance and assistance of popliteal sciatic nerve block.

The invention discloses an ultrasound-guided nerve block needle. The ultrasound-guided nerve block needle comprises an ultrasonic probe, a connecting mechanism, a clamping mechanism and an adjusting assembly. The connecting mechanism is composed of a sliding rail mechanism, a connecting frame, a sliding frame, a rotating frame, a telescopic frame and a push-pull rod and can achieve flexible adjustment of components, the clamping mechanism achieves stable clamping of a needle head through a fixing groove frame, a clamping block, a connecting rod and a connecting frame, and the adjusting assembly comprises a plurality of threaded rods and is used for adjusting the needle inserting angle and height. By flexibly switching the needle inserting path and accurately adjusting the angle, the puncture efficiency, safety and accuracy are improved, and the discomfort of a patient and the risk of tissue damage are reduced.

The invention discloses a force feedback foot control type intravenous injection pump system which comprises an injection pump, an electric control unit is installed on the injection pump, and a displayer which is used for displaying injection parameters and is in electric signal connection with the electric control unit is further installed on the injection pump. The injector is communicated with the injection pump; the pedal controller is integrally arranged on the ground and is used for pedal control; wherein the pedal controller comprises a pedal and a fixed seat, and when the pedal controller is used, an operator steps on the pedal to carry out injection operation; one end of the injector is provided with a pressure sensor used for monitoring the injection pressure, the pressure sensor is in electric signal connection with the electric control unit so as to feed back the injection pressure, and the injection pressure is displayed on the display so as to regulate and control the treading force of the pedal controller. Compared with the prior art, labor cost can be remarkably saved, nerve block operation can be conducted by a single person, unnecessary nerve injury is reduced by accurately controlling the injection speed through feedback of damping of the infusion pump in the injection process, and absolute sterility is easy to achieve through single-person operation.

The utility model discloses a novel nerve block needle which comprises an injector, the bottom of the injector is connected with a connecting cylinder in a clamped mode, the bottom of the connecting cylinder is fixedly connected with a puncture needle head, the top of the injector is fixedly connected with a connecting column, a sliding groove is formed in the connecting column, and a rotary knob is arranged at the top of the injector. The length and the diameter of the puncture needle are designed according to different clinical requirements so as to adapt to nerve block operation of different parts, the catheter needle is located in the puncture needle, the front end of the catheter needle is provided with a telescopic umbrella-shaped structure, and after the puncture needle punctures a subcutaneous target area, the front end of the catheter needle stretches out, and the umbrella-shaped structure is opened. The umbrella-shaped structure is made of a flexible medical material, it is ensured that surrounding tissue cannot be injured when the catheter needle is opened, the front end of the catheter needle is round and blunt so that the risk of injury to the tissue can be further reduced, and when the catheter needle reaches a position needing blocking, blocking medicine can be evenly injected in a designated area through unfolding of the umbrella-shaped structure.

To provide a method of blocking a nerve or neuron by applying electrical stimulation to the nerve or neuron.SOLUTION: A method of blocking a nerve or neuron comprises applying electrical stimulation to the nerve or neuron, where the electrical stimulation has intensity not causing excitation of the nerve or neuron for a length of time sufficient to produce a block of nerve conduction or neuron excitation. The intensity of the electrical stimulation is below an initial excitation threshold of the nerve or neuron, and optionally is below a pain threshold.SELECTED DRAWING: Figure 15

The invention provides a nerve block device for enhancing ultrasonic guided effective development, and belongs to the field of medical instruments. Comprising a fixing sleeve, the inner surface of the fixing sleeve is connected with a rack in a clamped mode, the outer surface of the lower end of the rack is fixedly connected with a probe, an adjusting assembly is arranged on the outer side of the fixing sleeve and comprises a mounting plate fixedly connected with the outer surface of the fixing sleeve, and the inner side of the mounting plate is detachably connected with a guide frame. By arranging the adjusting assembly, the puncture angle of the puncture tube can be accurately adjusted and controlled, so that a nerve blocking agent can be accurately injected to a proper part under ultrasonic guidance, and meanwhile, the guide frame can keep the position of the puncture tube stable; the device is simple in structure and convenient to use, puncture errors caused by hand movement of medical staff in the puncture process can be reduced, the puncture depth position is within a proper range, the puncture precision can be further improved, and then the blocking effect on nerves can be effectively guaranteed.

The invention discloses an anesthesia clinical ultrasound-guided nerve block puncture stent, and relates to the technical field of medical instruments, the anesthesia clinical ultrasound-guided nerve block puncture stent comprises a positioning part, a trigger part, a control part and a transmission part, the positioning part comprises a fixing frame and a fixing frame, the fixing frame is provided with a clamping frame, and the transmission part is arranged between the fixing frame and the clamping frame; side plates are fixedly connected to the two sides of the clamping frame, and a front plate is arranged on the front side of the clamping frame. Transmission between the control assembly and the rotating assembly or the inclined assembly is selected through the trigger assembly, the transmission part is released through the upper side control assembly, after the ultrasonic probe is adjusted to the proper position, the lower side control assembly is pressed, the position is locked, slight displacement caused by loosening is avoided, and it is guaranteed that the ultrasonic probe is located at the ideal position and can be stable.

The invention discloses an ultrasonic image segmentation system training method and a nerve block auxiliary system, and belongs to the field of medical image segmentation, and the method comprises the steps: proposing a semi-supervised segmentation framework of progressive learning from simple to difficult, and explicitly generating a simplified sample and a complicated sample through the bidirectional replacement of a difficult region and a simple region, and a gradient weight mechanism is introduced, and the contribution strength of the two types of samples in each training stage is dynamically regulated and controlled. The nerve block auxiliary system comprises an ultrasonic device, a data acquisition device, a processing system and an interaction device, an ultrasonic image segmentation system trained by the provided method is deployed in the processing system, and the processing system is used for inputting a to-be-segmented ultrasonic image into the ultrasonic image segmentation system so as to carry out segmentation and visualization processing on the ultrasonic image. And the segmentation result and the visualization result are visually displayed through the interaction device. The segmentation performance of the ultrasonic image segmentation system can be improved, so that nerve block is effectively assisted.

A processing device for producing a puncture guide plate for trigeminal nerve block includes an operating box and a storage box; a first rotating member is rotatably connected to the storage box, and a first stirring member is located in the storage box; a heating device is provided in the storage box, and a discharge pipe is provided at the bottom of the storage box; an extrusion tube is located above an operating table, and a nozzle is provided at the bottom of the extrusion tube; a collecting hopper is provided at the top of the extrusion tube, and a feeding hose is provided on the discharge pipe, and the other end of the feeding hose is connected to the collecting hopper; a second rotating member is rotatably connected to the collecting hopper, and the top end extends into the connection box, and the bottom end extends into the extrusion tube; a second stirring member is arranged on the second rotating member and located in the collecting hopper, and a conveying extrusion blade is arranged on the second rotating member and located in the extrusion tube; and a heat absorbing tube is wound around the outer peripheral surface of the extrusion tube. The present invention can not only evenly mix the production raw materials to improve product quality, but also effectively protect the print head structure, and conveniently control the output of the raw materials, and is easy to use.

The invention relates to the technical field of nerve conduction function blocking, and discloses a temperature control nerve blocking system and application thereof.The temperature control nerve blocking system comprises a control unit and further comprises a refrigeration unit and a temperature monitoring unit, the refrigeration unit comprises a blocking semiconductor refrigeration piece and a low-temperature cold dissipation part, and the low-temperature cold dissipation part makes contact with a low-temperature acting body surface target area; the temperature monitoring unit comprises a temperature monitor connected to the low-temperature cold dissipation part, and the temperature monitor transmits a temperature signal to the control unit; and the control unit is used for receiving a temperature signal of the temperature monitor and controlling the output power of the retardation semiconductor chilling plate and the temperature of the low-temperature cold dissipation part. According to the invention, the problems of low temperature control precision and slow control speed during low-temperature retardation of nerves in the prior art are solved.

The present invention discloses a nerve block simulation training method and related equipment. The method includes: constructing ultrasonic simulation models of different tissue parts of the human body based on standard three-dimensional anatomical structure information and simulated ultrasonic information of different tissue parts of the human body, and associating the ultrasonic simulation models of different tissue parts with the tissue simulator through coordinate information; tracking the relative position information and relative angle information of the simulated ultrasonic probe and the tissue simulator, and generating corresponding simulated ultrasonic images through the ultrasonic simulation model; tracking the position information and angle information of the simulated nerve block puncture needle in the tissue simulator, taking the intersection of the coordinate range of the puncture needle and the coordinate range of the simulated ultrasonic probe section, obtaining the coplanar coordinate range of the puncture needle and the simulated ultrasonic probe section, and converting the point-to-point into the simulated puncture needle ultrasonic image. It solves the problem that the simulated puncture site is limited, the clinical situation cannot be truly simulated, the efficiency of the transformation of simulation teaching to clinical practice is reduced, and the application value of actual clinical cases is lacking.

The utility model relates to the field of medical instruments, in particular to an ultrasound-guided nerve block puncture simulation teaching device. The device is composed of a nerve block puncture mechanism, a shell, an ultrasonic detection part and a feedback device. One side of the shell is an operation area for placing an ultrasonic detection part made of silica gel and scales, and the other side of the shell is a feedback area provided with a switch and a power supply. The puncture needle, the connecting tube and the injector form a puncture mechanism, the feedback device comprises a first guide wire, a second guide wire and an acousto-optic feedback part, the two guide wires conduct electricity through the puncture needle, and the T-shaped protective sleeve protects the joint. The device overcomes the problems that an operator is difficult to really understand the operation process and skills, the operation opportunity is limited, the clinical practice operation risk is high and the like in the traditional nerve block puncture teaching, enables the operator to carry out a large amount of practice exercises in a safe environment, and improves the operation skills.

The invention discloses a combined type multifunctional radio frequency thermal coagulation electrode, and relates to the technical field of medical instruments. The radio frequency thermal coagulation electrode integrates multiple functions of ultrasonic guidance, a temperature sensor, an impedance sensor, a nerve plexus stimulation needle, a radio frequency thermal coagulation electrode and the like. The radio frequency sleeve is composed of a needle tube, an insulating layer, a sleeve seat, a lock cap, a sheath and the like. And various head structures are provided for clinical selection. The radio frequency probe is composed of a sheath tube, an electrode wire, a probe seat, a color code tube, a wire and a plug. Wherein an ultrasonic guide mark is added at the front end of the probe, so that ultrasonic guide can be adopted when the radio frequency thermal coagulation electrode punctures and enters a target part of a human body, and the harm of ionizing radiation to a medical patient is avoided. The radio frequency sleeve and the probe are locked together through the locking sleeve seat and the probe seat. After the combined multifunctional radio frequency thermal coagulation electrode is connected with a radio frequency therapeutic apparatus, various operations such as temperature measurement, impedance measurement, electrical stimulation positioning, nerve blocking, radio frequency thermal coagulation and the like can be carried out.

The present invention discloses an ultrasound image display system for nerve block, comprising: a processor; a memory coupled to the processor; and instructions, the instructions being stored in the memory and executable by the processor to enable the system to perform the following operations: acquiring a first image including a needle body and a second image, wherein the second image is an image captured temporally after the first image; determining a first needle body portion in the second image corresponding to the needle body in the first image; determining whether a difference between the grayscale of the needle body in the first image and the first needle body portion is greater than a first threshold value; and displaying an angle adjustment prompt on the display if a difference between the grayscale of the needle body in the first image and the first needle body portion is greater than the first threshold value.

The invention discloses a nerve block postoperative rehabilitation training auxiliary device which comprises a rack, a handle, a main input shaft, a power conversion mechanism, an energy storage mechanism, a critical trigger mechanism and a power-assisted execution mechanism. The handle is vertically arranged on the rack in a sliding manner; the main input shaft is transversely and rotatably arranged on the rack; the power conversion mechanism is used for converting vertical sliding of the handle into one-way rotating motion of the main input shaft; the energy storage mechanism is used for storing mechanical energy when the main input shaft rotates unidirectionally and preventing the main input shaft from rotating reversely; the critical triggering mechanism is in linkage with the main input shaft and the energy storage mechanism and used for relieving reverse rotation prevention of the energy storage mechanism on the main input shaft when the handle moves to a preset critical position, and the assistance executing mechanism is connected with the main input shaft and used for applying upward assistance force to the handle when the main input shaft rotates reversely at a high speed. The nerve block postoperative rehabilitation training auxiliary device can provide instantaneous and accurate auxiliary rehabilitation training at the critical point where the nerve block postoperative rehabilitation training auxiliary device is most helpful.

A safe ultrasonic-guided foot-controlled injection pump special for nerve block comprises a needle cylinder shell used for containing liquid medicine, a cavity, a piston rod, a driving assembly used for pushing the piston rod to reciprocate, a foot switch used for driving the driving assembly and a safe limiting assembly arranged on the needle cylinder shell. The pedal switch inputs a control signal to the driving assembly, so that the driving assembly pushes the piston rod to move in the cavity, the safety limiting assembly is arranged in the length extending direction of the outer side face of the needle cylinder shell, and when the piston rod moves towards the rear portion of the cavity from the interior of the needle cylinder shell, the safety limiting assembly is driven to move. The safety limiting assembly is used for limiting the piston rod to move towards the rear portion of the needle cylinder shell from the interior of the cavity, and the pedal switch is arranged to control the driving assembly so that a user can step on the pedal switch with the foot to control the piston rod to push liquid medicine to be injected and retreated. Therefore, the two hands of the user are liberated, so that the two hands of the user can perform other operations and use other tools.

The utility model discloses a combined radio frequency electrode, and relates to the technical field of medical instruments. The radio frequency thermal coagulation electrode integrates multiple functions of ultrasonic guidance, a temperature sensor, an impedance sensor, a nerve plexus stimulation needle, a radio frequency thermal coagulation electrode and the like. The radio frequency sleeve is composed of a needle tube, an insulating layer, a sleeve seat, a lock cap, a sheath and the like. And various head structures are provided for clinical selection. The radio frequency probe is composed of a sheath tube, an electrode wire, a probe seat, a color code tube, a wire and a plug. Wherein an ultrasonic guide mark is added at the front end of the probe, so that ultrasonic guide can be adopted when the radio frequency thermal coagulation electrode punctures and enters a target part of a human body, and the harm of ionizing radiation to a medical patient is avoided. The radio frequency sleeve and the probe are locked together through the locking sleeve seat and the probe seat. After the combined multifunctional radio frequency thermal coagulation electrode is connected with a radio frequency therapeutic apparatus, various operations such as temperature measurement, impedance measurement, electrical stimulation positioning, nerve blocking, radio frequency thermal coagulation and the like can be carried out.

Provided herein are methods for blocking nerves, for example, for treating obesity, heart failure, cardiovascular disease, muscle spasms, chronic pain, or urinary retention in postoperative patients. The methods can include first heating the nerve to a temperature above physiological temperature (e.g., human body temperature of 37°C), for example, in the range of 43°C to 54°C, for a period of time, which results in reversible nerve blockade, which is the opposite of nerve damage. Second, reversible nerve blockade can be produced by cooling the nerve to a temperature below physiological temperature, where reversible nerve blockade can be achieved, for example, in the range of 15°C to 30°C.

The application discloses a long-acting local anesthetic compound, a preparation method, application and a pharmaceutical composition thereof. The long-acting local anesthetic compound is prepared by the following steps: reacting a local anesthetic with bromoethanol to generate a quaternary ammonium salt intermediate, and then condensing the quaternary ammonium salt intermediate with a non-steroidal anti-inflammatory drug. The preparation method is simple and suitable for large-scale production. The prepared long-acting local anesthetic compound has a long duration and an anesthetic time of more than 24 hours, and has nerve block selectivity. The long-acting local anesthetic compound can reduce the frequency of administration, increase the compliance of patients, greatly reduce the risk of anesthesia, and has a very good application prospect.

The application provides a nerve block device capable of enhancing ultrasound-guided effective development, and belongs to the field of medical instruments. The device comprises a fixing sleeve, a rack is clamped and connected to the inner surface of the fixing sleeve, a probe is fixedly connected to the outer surface of the lower end of the rack, an adjusting assembly is arranged on the outer side of the fixing sleeve, the adjusting assembly comprises a mounting plate fixedly connected to the outer surface of the fixing sleeve, and a guide frame is detachably connected to the inner side of the mounting plate. The adjusting assembly can accurately adjust and control the puncture angle of the puncture tube, so that the nerve block agent can be accurately injected into the appropriate position under the guidance of ultrasound. Meanwhile, the guide frame can keep the position of the puncture tube stable, which helps to reduce the puncture error caused by the hand movement of medical staff during the puncture process, so that the puncture depth position is within the appropriate range, thereby further improving the puncture precision and effectively ensuring the nerve block effect.

The invention discloses an evaluation method and system for improving postoperative sleep of an elderly patient through nerve block analgesia, relates to the field of anesthesiology and pain management, and solves the problems that it is difficult to construct a staging model by using a CNN deep learning framework, and it is difficult to obtain multiple comprehensive indexes by recording data related to sleep quality in the whole night sleep period through PSG detection. The method comprises the following steps of: randomly dividing the elderly patients into a control group and an experimental group; carrying out a PSG test in a hospital sleep laboratory; constructing a staging model by using a CNN deep learning framework, and obtaining a sleep time comprehensive evaluation index, an awakening time continuous interval comprehensive index and a sleep respiration and limb disorder comprehensive index; the multiple indexes and the sleep efficiency are combined to obtain a comprehensive sleep quality evaluation index; and analyzing the sleep quality improvement condition according to the control group-experimental group comprehensive sleep quality proportion value.

The invention relates to the technical field of nerve block puncture, and discloses ultrasound-guided nerve block puncture equipment which comprises an adjusting and guiding mechanism, a probe fixing mechanism is movably arranged on the surface of the adjusting and guiding mechanism, a puncture needle fixing mechanism is mounted in the adjusting and guiding mechanism, and the probe fixing mechanism and the puncture needle fixing mechanism are movably arranged on the surface of the adjusting and guiding mechanism. A supporting transmission mechanism is installed in the adjusting guide mechanism, and a disinfection guide needle mechanism is arranged in the supporting transmission mechanism. According to the ultrasound-guided nerve block puncture equipment, through the arrangement of the adjusting guide mechanism, the probe fixing mechanism, the puncture needle fixing mechanism, the supporting transmission mechanism and the disinfection guide needle mechanism, the adjusting guide mechanism can be used as a support during use, and the adjusted puncture angle is limited by utilizing the adjusting guide mechanism; and the puncture needle is driven by the puncture needle fixing mechanism to puncture, so that the influence of shaking on the puncture needle is reduced, the puncture precision is improved, and the safety is improved.

Disclosed herein are systems and methods for performing a cardiac arrhythmia and a subsequent nerve block. A cryogenic device can be provided and can comprise a handle comprising a proximal end and a distal end, an elongate shaft extending from the handle, the elongate shaft comprising a lumen, a cryogenic probe extending from the elongate shaft, wherein the cryogenic probe is flexible, and an adapter removably located at a distal end of the elongate shaft, the adapter comprising a base portion, a head portion, and an opening therethrough, wherein the base portion comprises one or more prongs configured to key onto the elongate shaft, wherein the head portion is rounded and comprises a groove embedded within. The adapter can be configured to receive the cryogenic probe via the opening and within the groove such that the cryogenic probe maintains a shape when coupled to the groove.

Systems for nerve and tissue modulation are disclosed. An example system may include a first elongate element having a distal end and a proximal end and having at least one nerve modulation element disposed adjacent the distal end. The nerve modulation element may be positioned or moveable to target a particular target region. The nerve modulation element may be an ultrasound transducer. The nerve modulation element may be configured to be operated at a low intensity to provide a thermal nerve block or a high intensity to effect tissue modulation.

The invention relates to the technical field of nerve block puncture needles, and discloses a nerve block puncture needle capable of enhancing the ultrasonic development effect, the nerve block puncture needle comprises a connecting part and a puncture needle tube, and a reflection cavity is formed in the tube wall of the puncture needle tube. Under the combined action of the positive pressure and the negative pressure at the two ends of the microbubble solution, gas is continuously dissolved at one end of the gas inlet cavity in the reflection cavity and enters the microbubble solution, bubbles are generated in the microbubble solution, and the bubbles are generated in the microbubble solution due to the negative pressure action at one end of the gas outlet cavity. The microbubble solution in the enrichment cavity is continuously enriched from one end of the air inlet cavity to one end of the air exhaust cavity, so that a large number of bubbles enriched in the enrichment cavity can be obviously displayed under ultrasonic waves, and the position of the needle tip can be confirmed through the flowing and gathering direction of the bubbles, so that the microbubble concentration can be accurately controlled under ultrasonic guidance. The accurate position of the needle tip can be accurately confirmed, puncture operation of medical staff is facilitated, errors caused by nerve block puncture are effectively avoided, and puncture accuracy and safety are guaranteed.

Systems for nerve and tissue modulation are disclosed. An example system may include a first elongate element having a distal end and a proximal end and having at least one nerve modulation element disposed adjacent the distal end. The nerve modulation element may be positioned or moveable to target a particular target region. The nerve modulation element may be an ultrasound transducer. The nerve modulation element may be configured to be operated at a low intensity to provide a thermal nerve block or a high intensity to effect tissue modulation.

The utility model provides a puncture device, and relates to the technical field of puncture tools. The puncture device comprises a puncture needle, an extension tube, a dosing tube and an angle adjusting mechanism, the tail end of the puncture needle penetrates through the front end face of the extension tube and then extends into the extension tube, one end of the dosing tube is connected with the tail end of the puncture needle, the other end of the dosing tube penetrates out of the tail end of the extension tube and then extends outwards, and the angle adjusting mechanism is arranged on the extension tube. The device is used for adjusting the puncture angle of the puncture needle. According to the puncture device, the puncture angle of the puncture needle can be flexibly adjusted, the medicine injection depth can be accurately grasped, and the nerve block effect is improved.