13 results about "Nerve Blockade" patented technology

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 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.

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.

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.

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.

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.

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.

Accelerated recovery from direct current (DC) nerve block can be achieved using repolarization. A direct current (DC) waveform can be applied to a nerve for a time sufficient to achieve nerve block. The DC waveform can be switched to another DC waveform of reversed polarity, which can be applied for a second time, causing the nerve to enter a repolarization cycle to accelerate recovery time for the nerve. Moreover, simply applying a subthreshold DC waveform to the nerve for a time by itself can enhance a response of the nerve without blocking conduction in the nerve.

The invention discloses a nerve block simulation training method, head-mounted display equipment and a storage medium, and relates to the technical field of virtual reality, the disclosed nerve block simulation training method comprises the following steps: acquiring an image of a to-be-trained nerve block part, and constructing a virtual model of the to-be-trained nerve block part according to the image; the virtual model is displayed on a display screen of the head-mounted display device, and the anatomical mark and the needle inserting path are displayed on the virtual model in an overlapped mode; on the display screen, displaying an operation result after the puncture needle performs needle insertion operation based on the anatomical mark and the needle insertion path, the operation result including a puncture angle, a needle insertion depth and an ultrasonic image matching degree; according to the puncture angle, the needle insertion depth and the ultrasonic image matching degree, the operation score of the to-be-trained nerve block part is obtained, the problem that the nerve block training is difficult to meet the clinical actual demand is solved, the nerve block training effect is improved, and the nerve block training can meet the clinical actual demand.

The invention relates to the technical field of probe supporting hand racks, and discloses a multifunctional probe supporting hand rack for nerve block under the guidance of B ultrasound. Comprising a base, a sliding plate is fixedly connected to the upper surface of the base, a movable seat is slidably connected to the interior of the sliding plate, supporting plates are fixedly connected to the two sides of the movable seat, movable plates are movably connected to the upper surfaces of the supporting plates through shaft rods, and balls are movably connected to the rear surfaces of the movable plates; according to the invention, the connection between the ball and the movable plate is utilized, so that the spherical connection between the ball and the movable plate allows the probe to rotate and position in multiple directions, and the movable plate realizes the pitching angle adjustment through the hinge structure of the shaft rod and the support plate; the rubber plate absorbs vibration during operation through the first connecting block and the second connecting block to prevent the probe from shifting, so that the stability and accuracy of images are ensured when the B ultrasound guides the nerve block, the accuracy and repeatability of the nerve block are improved, and the operation fatigue of medical staff is reduced.

This invention discloses a method and system for nerve block puncture needles based on dynamic changes in injection pressure, relating to the field of medical device control technology. During operation, the system collects pressure data sequences at a preset sampling frequency using an intra-needle pressure sensor. These sequences are then smoothed using low-pass filtering and a fixed sampling window to obtain a stable pressure data sequence that characterizes the continuous pressure change trend and reduces high-frequency interference. Based on the stable pressure data sequence, the pressure change rate and pressure change acceleration are calculated and jointly analyzed within the continuous sampling time interval. When the pressure change rate changes from positive to negative and exceeds a first preset threshold, and the pressure change acceleration experiences an extreme value change and exceeds a second preset threshold, fascial breakthrough is determined. The needle tip advancement speed is graded and adjusted according to the pressure change rate trend, and continuous and intermittent advancement are used to control the needle tip displacement. Real-time pressure data is compared with the target pressure range and pressure fluctuation range; when deviations occur, a needle tip position adjustment command is generated and a prompt signal is output.