865 results about "Percutaneous" patented technology

A device comprises an implantable blood pump receivable in a sheath for percutaneous delivery. The implantable blood pump comprises a collapsible impeller mounted in a collapsible impeller cage, and a drive device mounted in a housing. The housing is in connection between a first end of a catheter and the collapsible impeller cage. The drive device is adapted for rotating the collapsible impeller. A retractable support structure is adapted to extend from the catheter. The extended retractable support structure is adapted to engage with the wall of the aorta for allowing the implantable blood pump to be secured in the left ventricle. The collapsible impeller cage comprises an inlet and an outlet. The inlet is adapted to receive blood from the left ventricle. The outlet directs blood in the direction of the atrioventricular valve.

The invention relates to the field of medical instruments, and discloses an anesthesia injury monitoring evaluation and management system for pain monitoring and rehabilitation acceleration. Comprising a sensor module configured to collect acupuncture point skin temperature data in a percutaneous acupuncture point electrical stimulation process, current parameter data output by an electrical stimulation device and skin impedance change data in real time; the control module is used for inputting the temperature data, the current parameter data and the skin impedance data which are acquired in real time into a multi-parameter risk assessment model, calculating a real-time risk value and generating a parameter change curve containing a time sequence; when the real-time risk value exceeds a preset safety threshold value, or any single parameter in the parameter change curve reaches a temperature change rate threshold value, an accumulated electrical stimulation energy threshold value or a skin impedance abnormal fluctuation threshold value, triggering a multi-stage early warning signal; according to the early warning level of the early warning module, the output power, the pulse frequency or the action time of the electrical stimulation device is automatically adjusted, or electrical stimulation is forcibly terminated when early warning is performed at the highest level.

There is provided an introducer system for percutaneously delivering a first and a second medical device to a patient. The system may comprise an introducer sheath having a longitudinal axis and a lumen formed therein. The system may also comprise a bifurcated hub coupled to a proximal end of the sheath. The hub may comprise a first arm having a first lumen and a first hemostasis valve for the passage of the first medical device. The hub may also comprise a second arm coupled to the first arm and having a second lumen and a second hemostasis valve for the passage of the second medical device. Further, the hub may comprise a connection port such that the first lumen and the second lumen are in communication with the lumen of the introducer sheath for the passage of at least one of the first and second medical devices through the introducer sheath for delivery to the patient.

The percutaneous pericardium puncture assembly comprises a puncture tube and a puncture piece, and the puncture tube comprises a tube body and a puncture section arranged at the far end of the tube body. A puncture channel, a negative pressure suction channel and an imaging channel are formed in the tube body and communicated with a working opening in the far end of the puncture section. The imaging module is arranged in the imaging channel in a penetrating mode, and real-time visualization of in-vivo puncture operation is achieved. The near end of the negative pressure suction channel can be in butt joint with a negative pressure suction device to provide negative pressure for the working port so as to adsorb the pericardium wall layer; the puncture piece penetrates through the puncture channel and can puncture the adsorbed pericardium wall layer. According to the embodiment, the vacuum suction channel is formed, the pericardium wall layer can be captured before puncture of the puncture piece, in this way, even if only a small amount of pericardial effusion exists between the pericardium wall layer and the pericardium dirty layer, medical staff can easily complete puncture of the pericardium wall layer under the condition that the pericardium dirty layer is not damaged, and the puncture efficiency of the pericardium wall layer is improved. The operation is simple, and the safety and the success rate of percutaneous pericardium paracentesis under full indications are greatly improved.

In some embodiments, systems and methods can include a wearable device with an electrically conductive skin interface that excites the underlying nerves from a transcutaneous surface stimulator. The device may be sized for a range of user sizes with stimulation electrodes positioned to target the appropriate nerves, such as the saphenous and / or posterior tibial nerves. The therapy may be adjusted based on leg restlessness or movement.

Mitral valve prolapse and mitral regurgitation can be treating by implanting in the mitral annulus a transvalvular intraannular band. The band has a first end, a first anchoring portion located proximate the first end, a second end, a second anchoring portion located proximate the second end, and a central portion. The central portion is positioned so that it extends transversely across a coaptive edge formed by the closure of the mitral valve leaflets. The band may be implanted via translumenal access or via thoracotomy.

A percutaneous delivery tool includes a shaft, and proximal and distal capsules which move axially with respect to the shaft. A prosthetic valve includes a tubular portion, an upstream support portion extending therefrom and a plurality of flanges each having a respective flange end-portion. The prosthetic valve is restrainable by the delivery tool, such that the shaft and a downstream end of the tubular portion are disposed within the distal capsule, and the upstream support portion and the flange end-portions are disposed within the proximal capsule. Other embodiments are also described.

The invention discloses a treatment monitoring method and system for a percutaneous ear vagus nerve stimulation device, and the method comprises the steps: carrying out the multi-source treatment situation monitoring of a target user in a treatment course, obtaining the multi-source treatment situation monitoring data, and constructing a multi-mode treatment situation feature; real-time treatment situation analysis is carried out according to the multi-mode treatment situation features, and real-time treatment situation analysis information is generated; performing dynamic state classification based on the real-time treatment situation analysis information, evaluating the treatment condition of the target user in the current treatment course, and generating a treatment regulation and control scheme to perform treatment management and control on the current treatment course when an abnormal treatment condition exists; and constructing a treatment situation prediction model, obtaining the regulated and controlled multi-mode treatment situation characteristics, generating a floating regulation and control boundary in combination with the treatment situation prediction model, and dynamically correcting the diagnosis and treatment regulation and control scheme by using the floating regulation and control boundary to ensure the curative effect and treatment safety. The treatment effect can be accurately perceived; and the treatment safety is ensured.

The invention relates to the technical field of bone implants for minimally invasive surgery, and particularly discloses an implant for percutaneous minimally invasive thoracolumbar vertebral fracture, which comprises a vertebral body forming body, the vertebral body forming body comprises a vertebral body forming body head and a plurality of blade parts arranged at the rear end of the vertebral body forming body head in a surrounding manner, the vertebral body forming body head is provided with a needle guide hole penetrating along the axial direction, and the needle guide hole is communicated with the blade parts; a containing cavity is defined by the blade parts; the front end of the threaded guide rod and the head of the cone forming body are integrally formed, the needle guide hole penetrates through the threaded guide rod in the axial direction, and the rear end of the threaded guide rod extends out of the containing cavity; the pedicle screw is provided with a threaded hole penetrating in the axial direction, the threaded hole is in threaded connection with the threaded guide rod, the pedicle screw comprises a screw head and a threaded part arranged at the rear end of the screw head, and the screw head is arranged in the containing cavity and expands the blade part. According to the implant for the percutaneous minimally invasive thoracolumbar vertebral fracture, surgical wounds are reduced, the vertebral restoration effect is good, the stability of a vertebral formed body is guaranteed, and the surgical time can be saved.

A medical system may include a pump disposed along a longitudinal axis of a blood flow assist system and including an impeller disposed in a pump housing; a power lead coupled with the first end portion of the pump; and a tether coupled with a second end portion of the pump opposite the first end portion. During operation of the blood flow assist system with the pump disposed within the blood vessel, the power lead may be configured to extend from within the blood vessel within which the pump is disposed to outside the first vascular access site to couple to the control system, and the tether may be configured to extend from within a blood vessel within which the pump is disposed to an anchoring position disposed away from the second end portion.

The invention relates to the field of medical treatment, and discloses a method for treating chronic insomnia by percutaneous magnetic stimulation of stellate ganglion block, which comprises the following steps: preprocessing: determining the initial position of stellate ganglion, tissue initial parameters and initial stimulation parameters through multi-modal image positioning and initialization to obtain reference data; dynamic sensing: collecting neck tissue displacement data, temperature field data and electromyographic signals in real time, and calculating spatial position variation of stellate ganglions and time-varying parameters of tissue electromagnetic characteristics; and modeling optimization: constructing a time-varying electromagnetic field distribution model based on the reference data, the spatial position variable quantity and the time-varying parameters. The method comprises the following steps: acquiring neck tissue displacement, a temperature field and an electromyographic signal in real time through reference data, capturing a stellate ganglion space position change and tissue electromagnetic property time-varying rule, constructing a time-varying electromagnetic field distribution model, and solving target stimulation parameters adaptive to a real-time tissue state through an optimal control algorithm.

Various systems, devices, and methods for endovascular implants and accurate placement thereof are disclosed. The implants include a proximal implant segment, a distal implant segment, connector struts connecting the proximal implant segment to the distal implant segment, and a side opening between the proximal implant segment and the distal implant segment. The implants can be used to create an arteriovenous fistula or connect one vessel of the body to another by placement of the proximal implant segment and the distal implant segment within the vessels to be connected. The implants can have an hourglass shape. The implants can include a continuous strut or ring at a distal edge of the proximal implant segment. Also disclosed are methods for accurate percutaneous placement of the implants disclosed, and a device for percutaneous delivery.

A stimulation device includes an adaptor component. The adaptor component couples a percutaneous lead to the stimulation device. The stimulation device may apply a stimulation signal to target tissue via the adaptor. A surgeon may place the stimulation device in a container and the adaptor component may be disposed outside of the container. Methods describe prolonged stimulation of target tissue via a stimulation device. The prolonged stimulation may be applied during and after a surgical procedure.

A percutaneous targeting device comprises a body holding an extension. The body has a target guide holding a target pin which may be a K-wire. The extension has two guide sleeves, holding a guide wire. All wires are held in a common plane. The guide wires serve as a guide for cannulated fixation screws. The extension is movable against the body to adjust the angle between the target pin and the guide wires.

The invention relates to the technical field of intelligent wearing monitoring, in particular to a multifunctional head-mounted device for improving anxiety and depression symptoms in the perioperative period, which comprises a main body base, an electric treatment assembly and a power supply assembly are arranged on the main body base, extending ear hooks are arranged at two ends of the main body base, binding straps are arranged on the extending ear hooks, and a nose pad block is arranged at the bottom of the main body base. The electric treatment assembly is in signal connection with an evaluation and control system, heart rate monitoring assemblies are arranged on the extension ear hooks, and an eye movement monitoring assembly is arranged at the bottom of the main body base; a displacement monitoring assembly is arranged on the main body base, and a respiration monitoring assembly is arranged on the nose pad block. According to the invention, physiological parameter monitoring, anxiety and depression assessment and percutaneous nerve stimulation treatment functions are integrated, and multi-node fixed design and real-time dynamic data processing are combined, so that redundant steps depending on preposed medical assessment in the traditional technology are omitted, doctors can remotely and accurately adjust personalized schemes based on dynamic data, and the accuracy of diagnosis and treatment is improved. The anxiety depression intervention efficiency and reliability in the perioperative period are improved.

A delivery device for percutaneously delivering a stented prosthetic heart includes a sheath, a handle, and adjustment device including a fine adjustment mechanism, and an outer stability shaft. The sheath defines a lumen and is configured to compressively constrain the stented prosthetic heart valve. The handle is coupled to the proximal portion of the sheath and includes an actuator mechanism coupled to a proximal portion of the sheath that is configured to selectively move the sheath relative to the housing to release the stented prosthetic heat valve. The adjustment device is coupled to the handle and includes an adjustment lumen through which the sheath and the handle slidably extend. The outer stability shaft is coupled to the adjustment device. The fine adjustment mechanism is configured to selectively move the handle and the sheath relative to the adjustment device and the outer stability shaft.

The invention relates to the field of medical instruments, and discloses a low-temperature scald early warning system for preventing percutaneous acupoint electrical stimulation assisted anesthesia. Comprises: a data acquisition module configured to acquire baseline information of a patient, electric energy output cumulant data of an electrical stimulation device and real-time temperature data of an electrode slice application area; the control module is configured to determine a skin injury risk coefficient based on the patient baseline information, calculate an energy accumulation value of a current application area in combination with the electric energy output accumulation amount data, and calculate an energy accumulation value of the current application area according to a preset low-temperature scald risk model; inputting the skin injury risk coefficient, the energy accumulation value and the real-time temperature data into the low-temperature scald risk model, and calculating to obtain a dynamically adjusted low-temperature scald early-warning threshold value; and when the real-time temperature data reaches the low-temperature scald early-warning threshold value, early-warning information is pushed to a medical care terminal according to a preset time period, and the early-warning information at least comprises an application area position, a current temperature value and suggested examination time.

The invention relates to a heart premature beat detection device and method, a ventricular assist system, a storage medium and equipment, and the detection device comprises a first sampling module which is configured to collect operation data of a drive motor in a ventricular assist device, and the operation data at least comprise rotation speed data; the calculation module is configured to determine a current rotating speed maximum value and a historical average maximum value according to the rotating speed data; the judgment module is configured to judge that premature beat occurs when the current rotating speed maximum value is larger than the gear rotating speed and smaller than the historical average maximum value. Compared with a traditional premature beat detection mode, premature beat detection can be carried out in real time in the operation process of the percutaneous ventricular auxiliary device, and traditional external monitoring equipment such as electrocardiogram or color Doppler ultrasound does not need to be relied on any more.

The invention discloses a method and device for training a percutaneous ventricular assist device control model, and the method comprises the steps: obtaining a multi-mode real-time physiological signal of the cardiovascular state of a monitored user through simulation of a simulation platform; real-time physiological signals are used as input data to be input into the deep reinforcement learning model for training, and a control model of the percutaneous ventricular assist device capable of achieving pump speed real-time decision control is obtained; the control model is trained according to the real-time input data, so that the adaptivity of the control model is improved; performing reinforcement learning training of the control model through a reward function comprising the first reward sub-function item and the second reward sub-function item; after the percutaneous ventricular assist device is loaded with the obtained control model, the percutaneous ventricular assist device has the capability of recovering dynamic characteristics and pulsation characteristics of cardiac output and aortic pressure of a user, so that the cardiac output and the aortic pressure of a heart failure user are close to a normal physiological state, and the control model provides a basis for improving the operation quality of the percutaneous ventricular assist device; and technical guarantee is provided for cardiovascular health of the user.

The invention discloses a closed-loop percutaneous spinal cord electrical stimulation analgesia system and method based on physiological feedback, and belongs to the field of noninvasive electrical stimulation analgesia technologies and stimulation control systems thereof. The system comprises an electrode patch, a flexible substrate of which is provided with at least one pair of electrode units in an integrated manner, and the electrode patch is used for being attached to a corresponding spinal cord segment area of the body surface of a subject; the physiological signal acquisition module is used for acquiring a multi-modal physiological signal of a subject in real time; the stimulator is electrically connected with the electrode patch and used for generating and outputting electrical stimulation signals to at least one pair of electrode units of the electrode patch; the control module is connected with the physiological signal acquisition module and the stimulator and is used for evaluating the pain state of the subject based on the physiological signals acquired by the physiological signal acquisition module; and according to the evaluation result, generating a control instruction to perform closed-loop adjustment on the output state of the stimulator. According to the system, objective feedback is introduced, adaptability is improved, noninvasive individualization is achieved, operation is easy and convenient, and closed-loop automatic control over monitoring, analysis and adjustment is achieved.

A delivery tool including a shaft and a proximal capsule and a distal capsule is dimensioned for percutaneous delivery to the heart. An open end of the proximal capsule faces the open end of the distal capsule. The capsules are coupled to the shaft in a manner that allows axial movement of the capsule with respect to the shaft. A prosthetic heart valve includes a tubular portion that defines a lumen and prosthetic leaflets disposed within the lumen. The prosthetic heart valve is restrainable in a compressed state by the delivery tool, such that a downstream end of the tubular portion is disposed within the distal capsule. The distal capsule is shaped so as to define an opening for visualizing ensheathing of at least a portion of the downstream end of the tubular portion within the distal capsule. Other embodiments are also described.

The invention relates to the field of intelligent medical treatment, in particular to a percutaneous lung channel acupoint electrical stimulation optimization system based on artificial intelligence, which comprises a multi-source data acquisition module (M1), a dynamic modeling module (M2) and a self-adaptive electrical stimulation module (M3). M1, collecting lung channel acupoint skin impedance, infrared thermal imaging, respiratory rhythm and cough frequency data in real time, and generating multi-source fusion features through space-time alignment; m2, based on a deep learning model, combining with a preset database to dynamically generate an electrical stimulation parameter combination, and ensuring parameter safety through impedance calibration and constraint optimization; and M3, adjusting the stimulation intensity according to the parameters, and setting an impedance threshold to trigger power-off protection. The traditional Chinese medicine meridian theory and the AI algorithm are fused, accurate acupoint positioning, personalized electrical stimulation and dynamic safety regulation are achieved, and the respiratory system disease treatment effect is improved.

The invention discloses a subcutaneous administration intelligent health management system based on dynamic data, and relates to a medical instrument. According to the system, the data monitoring system, the drug delivery strategy calculation system and the subcutaneous drug delivery system are adopted for monitoring and processing health data and quickly responding to drug intervention, so that the problem that only health data can be monitored and health suggestions can be provided at the present stage, and abnormal health conditions cannot be handled in time is solved; according to the full-automatic management method of'detection, diagnosis and administration ', the compliance of a patient is improved; personalized and intelligent real-time administration calculation is achieved, the effect is guaranteed, meanwhile, the dosage of the medicine is reduced to the maximum extent, and side effects are reduced; the non-invasive transdermal drug delivery performed by using the microneedle system can reduce the problem of low bioavailability of the drug due to the effects of first pass metabolism and the like, and is more friendly to patients with dysphagia.

A method of localizing a target anatomy involves advancing a ureteroscope to a target calyx of a kidney of a patient through at least a portion of a urinary tract of the patient, determining a positional offset between one or more position sensors associated with the ureteroscope and a target papilla of the kidney that is at least partially exposed within the target calyx, and determining a percutaneous access target based at least in part on one or more of a present position of the one or more position sensors or the positional offset.

The invention belongs to the technical field of DSA, and discloses a DSA platform-based multi-state real-time multi-mode image accurate fusion method. After an angiography image is collected on the basis of DSA equipment under the motion condition, accurate DSA blood vessel subtraction image enhanced display is achieved, meanwhile, hepatic artery extraction in a three-dimensional image in preoperative CT is completed, dynamic intelligent fusion of a precise anatomical structure in a preoperative multi-mode CT image and intraoperative local blood vessel development is combined, and the dynamic and intelligent fusion of the dynamic and intelligent fusion of the dynamic and intelligent fusion of the dynamic and intelligent fusion of the dynamic and intelligent fusion of the dynamic and intelligent fusion of the dynamic and intelligent fusion of the dynamic and intelligent fusion is achieved. The intrahepatic lesions and important blood vessels are accurately and visually displayed, operation planning is completed, fusion of three-dimensional information and two-dimensional DSA is utilized, and transvascular and percutaneous interventional operations are accurately guided.

A closed-loop percutaneous ear vagus nerve stimulation system acting on insomnia, the system comprising: an electrocardiogram monitor for monitoring the heart rate of a patient; the power supply module is used for supplying power to the electrocardiogram monitor; the heart rate variability sensor is used for sensing heart rate data, collecting the heart rate data and transmitting the heart rate data to the feedback controller; the feedback microcontroller is used for receiving and processing the heart rate data and identifying abnormal heart rate data generated before or during the attack of insomnia; the pulse generator is used for outputting electric pulses to the percutaneous auricular concha area vagus nerve stimulator; and the percutaneous auricular concha area vagus nerve stimulator is used for stimulating the auricular concha area vagus nerve by adopting a vagus nerve stimulating electrode.

There is provided an introducer system for percutaneously delivering a first and a second medical device to a patient. The system may comprise an introducer sheath having a longitudinal axis and a lumen formed therein. The system may also comprise a hub coupled to a proximal end of the sheath. The hub may comprise a first arm having a first lumen and a first hemostasis valve for the passage of the first medical device. The hub may also comprise a second arm coupled to the first arm and having a second lumen and a second hemostasis valve for the passage of the second medical device. Further, the hub may comprise a connection port such that the first lumen and the second lumen are in communication with the lumen of the introducer sheath for the passage of at least one of the first and second medical devices through the introducer sheath for delivery to the patient.

The invention belongs to the field of human body detection devices, and provides a wearable system for evaluating pain, which comprises wearable equipment in communication connection with a cloud system. The wearable device is used for continuously collecting physiological signals when a patient wears the wearable device. The cloud system is provided with a hierarchical evaluation module, a correction module and an intervention control module, the hierarchical evaluation module extracts physiological features in a long-term time window, extracts skin electroreaction mutation, a myoelectricity activity peak value and skin temperature rapid change in a short-term time window, and deduces an acute pain level in combination with instant self-evaluation information of a patient; the correction module is used for correcting the acute score based on the mapping relation between the long-term stability characteristic and the acute pain level and an individualized threshold value; the intervention control module generates individualized electrical stimulation control parameters according to the correction result and issues the individualized electrical stimulation control parameters to the wearable device, and the electrical stimulation execution unit outputs a stimulation signal through the percutaneous electrode to relieve pain of the patient and uploads a feedback signal to the cloud end to form a closed loop.

The invention discloses a robot calibration method for spine endoscopic surgery, which comprises the following steps: S1, optical marking points are pasted on the skin or bony structure of a patient, the skin marking is used for fixing a reflective ball by using a medical adhesive tape, the bony marking is percutaneously implanted into a spinous process or crista iliaca through a titanium alloy bone nail, and at least six marking points are needed. According to the method, minimally invasive property and stability are both considered through a double marking strategy, six points cover three vertebral bodies to ensure the integrity of an anatomical range, registration errors caused by breathing / body position changes are reduced, meanwhile, non-rigid registration is combined with a B spline grid (10 mm) to consider calculation efficiency and spine physiological curvature adaptability, high-precision surface reconstruction is achieved through a Marching Cubes algorithm, and the method has the advantages of being high in precision and high in precision. An error suppression mechanism is formed by + / -0.25 mm precision and redundancy measurement (five times of sampling) of the optical tracking system, registration robustness is improved through SVD and ICP double-algorithm complementation, multi-constraint path planning is achieved through an A * algorithm and Monte Carlo simulation, and a 4 mm safety corridor provides a buffer space for instrument errors.

The embodiment of the invention provides a self-powered microneedle patch for repairing hypertrophic scars as well as a preparation method and application of the self-powered microneedle patch. The self-powered microneedle patch comprises: a friction nano-generator for generating a current; the conductive drug-loaded microneedle patch is connected with the friction nano-generator, and the friction nano-generator is connected with the conductive drug-loaded microneedle patch; the conductive drug-loaded microneedle patch comprises a conductive microneedle patch body and a crosslinked gelatin-crosslinked hyaluronic acid microneedle bearing Sb4. The surface of the conductive micro-needle patch is provided with a metal coating, and the conductive micro-needle patch is used for mediating current generated by the friction nano-generator and applying percutaneous electrical stimulation; the cross-linked gelatin-cross-linked hyaluronic acid microneedle is coated at the tip of the conductive microneedle patch. According to the self-powered microneedle patch provided by the embodiment of the invention, myofibroblasts of hypertrophic scars are transdifferentiated into adipocytes by providing percutaneous electrochemical stimulation, inflammatory factor release is inhibited, and a tissue microenvironment is remodeled, so that the hypertrophic scars are reversed, and skin repair and tissue regeneration are realized.