76 results about "Nerve stimulators" patented technology

A magnetic nerve stimulator system is comprised of a core constructed from a material having a high field saturation with a coil winding. A thyrister capacitive discharge circuit pulses the device. A rapidly changing magnetic field is guided by the core, preferably vanadium permendur. For task specific excitation of various nerve groups, specially constructed cores allow for excitation of nerves at deeper levels with higher efficiency than is possible with air-core stimulators. Among the applications possible with this invention are treatment of incontinence, rehabilitation of large muscle groups in the leg and arm, and excitation of abdominal wall muscle groups to aid in weight loss and metabolic rate increase. A C-shape is employed for focussing the stimulation as desired.

A pulse generator that includes a communications module is disclosed herein. The communication module includes a transceiver and an antenna circuit. The antenna circuit includes a first pathway having a capacitor and a second, parallel pathway including a capacitor, and a resistor, and a radiating element arranged in series. The antenna circuit is tuned to have a resonant frequency corresponding to a desired transmission frequency and a bandwidth corresponding to shifts in the resonant frequency arising from the implantation of the antenna circuit in a patient's body.

The invention relates to a functionalized implantable flexible electrode and an application thereof. The functionalized implantable flexible electrode at least comprises a function layer capable of generating a current or voltage. In the invention, through adopting the function layer which can generate the current or the voltage via triggering, the flexible electrode does not need complex line connection and device packaging and the function of a nerve stimulation device can be realized so that an operation risk and the safety risk of long-term implantation are greatly reduced, and the application field of the nerve stimulation device is expanded. The invention also provides the applications of the above functionalized wide-width implantable electrode in manufacturing an implantable artificial retina, an implantable artificial cochlea, an implantable cardiac pacemaker, and an implantable deep brain stimulator.

Transcutaneous electrical and magnetic nerve stimulation devices and methods generate energy that is delivered noninvasively to selected nerve fibers within the patient to treat lower urinary tract disorders. The disorders comprise overactive bladder, urge incontinence, stress, incontinence, urge frequency, non-obstructive urinary retention and interstitial cystitis / painful bladder syndrome. In preferred embodiments, a posterior tibial nerve of a patient is stimulated non-invasively to treat bladder disorders.

A device and method for stimulating nerves. In one application, the approaches treat nausea and vomiting caused by a reaction to general anesthesia. A bi-modal approach involving acustimulation and medicants is contemplated for specific conditions.

The invention discloses a method of regulating a stimulation frequency of a sacral nerve stimulator. The method comprises steps: two groups of stimulation electrodes are set; a stimulation changing period is set, wherein the stimulation changing period is a changing value; low-frequency impulses are transmitted to one stimulation electrode group and high-frequency impulses are transmitted to the other stimulation electrode group until the stimulation changing period is reached; in a next stimulation changing period, stimulation frequency signals of the two groups of stimulation electrodes are exchanged. The high-frequency and low-frequency combined electrical nerve stimulation is adopted to control contraction of bladder to empty the bladder, and generation of sphincter urethrae maladjusted contraction can also be avoided; the frequency amplitude in the low frequency part is changing, thereby avoiding fatigue on stimulation by nerve muscle; and only two stimulation points only need to be set, high-frequency and low-frequency stimulation is carried out alternatively at the two stimulation points, the problem of requiring multiple stimulation points is solved, and the operation difficulty is reduced.

The invention discloses a time domain data classification method based on a zero crossing point coefficient and an implantable stimulation system. The time domain data classification method based on the zero crossing point coefficient comprises the steps of obtaining a classification standard of time domain data; classifying the time domain data according to the classification standard; and selecting a stimulation strategy according to a classification result, so that the power consumption of the implantable nerve stimulator can be reduced, the endurance time of the implantable nerve stimulator can be prolonged, and the accuracy of closed-loop stimulation can be improved.

The invention provides an open-circuit detecting module and an open-circuit detecting method for a nerve stimulator. The nerve stimulator comprises a stimulation source, a control module and a stimulation access. The open-circuit detecting module comprises a voltage comparator and a sampling resistor arranged on the stimulation access, wherein the voltage comparator is provided with a first inputend and a second input end. The open-circuit detecting module also comprises a first wire and a second wire which connect two ends of the sampling resistor to the first input end and the second inputend respectively, and a first switch and a second switch are arranged on the first wire and the second wire respectively. The open-circuit detecting module acquires and compares voltage values at twoends of the sampling resistor on a certain stimulation access through the voltage comparator so as to achieve open-circuit detection of the stimulation circuit. The open-circuit detecting module is simple in structure, can achieve open-circuit detection of the stimulation access and can also prevent the phenomenon that part of multiple stimulation accesses is invalid, accordingly voltage abnormityof other stimulation accesses is caused and a treatment effect is affected.

The invention discloses a wireless charger capable of carrying out program control while charging and an implantable nerve stimulator. The wireless charger disclosed by the invention comprises a charging sending unit, a first charger communication unit and a charger micro control unit, wherein the charging sending unit is used for producing wireless charging electromagnetic wave at a first preset frequency; the first charger communication unit is used for sending and receiving communication signals at a second preset frequency, wherein the first preset frequency is different from the second preset frequency; and the charger micro control unit is used for controlling the charging sending unit and the first charger communication unit, and the charger micro control unit is connected with the charging sending unit and the first charger communication unit. The wireless charger disclosed by the invention has the advantages that the aim of carrying out the program control on the implantable nerve stimulator while charging can be realized, time for keeping sitting or lying posture by a patient can be shortened, pain of the patient is reduced, and time for carrying out the program control by an doctor and charging can be shortened, so that usage experience of the patient and the doctor is improved.

A nerve stimulator measuring device used to measure the length of electrical conduction of a nerve using a standard electrical nerve stimulator. The device includes a linear distance measuring device attached to the probes or the body of a standard electrical nerve stimulator. In one embodiment, the linear distance measuring device includes a housing mounted on one or both. Attached to the housing is a rotating wheel that is manually positioned over the skin and rotated as the handheld is moved over the skin. A display mounted on the housing is coupled to the wheel and use to indicate the total distance moved. The electrical nerve stimulator is then held so that the cathode probe is pressed against the skin over the nerve and adjacent to the desired distance shown on the tape. The electrical nerve stimulator is then activated and a reading is obtained.

The present invention is directed to a unique, user-friendly, disposable electrode to be used on metallic probes which are used in electromedical devices, such as transcutaneous electrical nerve stimulators (TENS) and microcurrent electrical therapy (MET) devices and other electrical simulators for applying electricity through the skin to the human or animal body. Additionally, the present invention describes a box for the storage and retrieval of the probe.

A pulse generator that includes a communications module is disclosed herein. The communication module includes a transceiver and an antenna circuit. The antenna circuit includes a first pathway having a capacitor and a second, parallel pathway including a capacitor, and a resistor, and a radiating element arranged in series. The antenna circuit is tuned to have a resonant frequency corresponding to a desired transmission frequency and a bandwidth corresponding to shifts in the resonant frequency arising from the implantation of the antenna circuit in a patient's body.

An implantable pulse generator that includes a current source / sink generator is disclosed herein. The current source / sink generator includes a current drive differential amplifier. The current driver differential amplifier is configured to selectively source current to, or sink current from a target tissue. The current drive differential amplifier includes an inverting input and a non-inverting input. One of the inputs of the current drive differential amplifier is connected to a virtual ground, and the other is connected to a current command. A stimulation controller can supply a voltage to the other of the inputs of the current drive differential amplifier to select either current sourcing or current sinking.

The invention provides an implanted electrode universal connection structure and device for electromagnetic compatibility injection voltage testing. The implanted electrode universal connection structure is used for electrically connecting implanted electrodes to an injection voltage testing device for electromagnetic compatibility testing of an implanted nerve stimulator. Since the implanted electrodes of different specifications have different structures and contact distances, the positions of conductive terminals in a mounting guide structure of a base can be adjusted according to the electrode contact distances of the implanted electrodes of different specifications, that is, the conductive terminals are moved and positioned according to the electrode contact distances of the implanted electrodes, so that the conductive terminal distances are consistent with the electrode contact distances of the implanted electrodes, universal electrical connection with the implanted electrodes of different specifications is realized, testing equipment does not need to be replaced additionally for the implanted electrodes of different specifications during injection voltage testing, the testing cost is reduced, and the testing efficiency is improved.

The invention discloses an implantable nerve stimulator, which carries out communication and electric energy receiving with an external energy controller through a radio frequency way. The implantable nerve stimulator comprises a master control chip, a stimulator antenna, an impedance matching circuit of the stimulator antenna, a rectification energy storage circuit, a modulation / demodulation circuit, an electrode interface and one or a plurality of stimulating electrodes, wherein the master control chip comprises a master control CPU, a master control memory and a digital-to-analogue conversion current source circuit; the stimulator antenna and the impedance matching circuit of the stimulator antenna are in radio frequency coupling with the external energy controller; the rectification energy storage circuit extracts electric energy from a received input signal and stores the electric energy; the modulation / demodulation circuit extracts control information including clinical stimulation parameters from the received input signal; the electrode interface distributes a stimulating pulse sequence to each corresponding stimulating electrode; the master control memory stores the received information; the digital-to-analogue conversion current source circuit generates the stimulating pulse sequence according to the clinical stimulation parameters; and the master control CPU controls operation of the implantable nerve stimulator. The implantable nerve stimulator can avoid treatment failure caused by radio frequency communication interruption or unsmooth radio frequency communication.

The invention relates to the field of implantable nerve stimulators, and particularly discloses a sacral-nerve stimulator adjusting the electric field direction. The sacral-nerve stimulator comprises an external program controller, an implantable pulse generator and a sectional stimulating electrode. The sectional stimulating electrode comprises multiple electrode segments capable of adjusting the electric field direction; the implantable pulse generator also comprises an electric field intensity sensor, the electric field intensity sensor is arranged at a target nerve, the electric field intensity sensor monitors the electric field intensity generated by the sectional stimulating electrode, and the electric field intensity sensor sends the monitored data to the implantable pulse generator or the external program controller; the monitored data comprises the first electric field intensity measured at the first position and the second electric field intensity measured at the second position. When the sacral-nerve stimulator adjusting the electric field direction is used, the electric-field applying direction of the sectional electrode can be rapidly adjusted to accurately stimulate target nervous tissue.

A nerve stimulator according to one embodiment comprises: a pad member including a first pad portion arranged so as to come into contact with the auricle, and a second pad portion arranged so as to come in contact with the external auditory meatus; and a plurality of electrode members provided in the pad member so as to output electro-stimulation, wherein the plurality of electrode members can comprise: a first electrode member provided in the first pad portion so as to come into contact with the auricle; and a second electrode member provided in the second pad portion so as to come into contact with the external auditory meatus.

The invention discloses a positioning indwelling needle used for continuous peripheral nerve blocking. The positioning indwelling needle is composed of two components, namely a Y-shaped indwelling needle and a nerve positioning needle. The Y-shaped indwelling needle includes a needle base, an indwelling hose led out along the bottom surface of the needle base, and an injection guide pipe led out along the side surface of the needle base; the nerve positioning needle includes a needle body which can be inserted into an inner cavity of the indwelling hose, the needle body is installed on a needle handle which can be buckled with the needle base, and a wire used for connecting the needle body with a nerve stimulator is led out of the tail end of the needle handle; the needle body is made from conductive materials, the indwelling needle is made from insulating materials, and the tip of the needle body extends and is exposed outside the indwelling hose. When the positioning indwelling needle is in use, an electrode slice used for a positive electrode of the nerve stimulator is connected with limbs at the same side of a patient, the output end of the nerve stimulator is connected with the needle body of the nerve positioning needle through the wire, and according to the anatomical position of a to-be-blocked peripheral nerve, a puncturing and needle inserting point is determined. The positioning indwelling needle is cheap, accurate in anesthesia positioning, convenient and reliable in postoperative analgesia and few in complication, and the quality and safety of anesthesia is significantly improved.

The invention discloses a nerve stimulator. The nerve stimulator is characterized by comprising a tooth socket fixing seat with a bandage, a rod connected to the tooth socket fixing seat in a penetrating mode and fixed to the tooth socket fixing seat through a fixing piece, and an electrode component arranged at one end of the rod, wherein the electrode component comprises a sleeve with an internal thread connected to one end of the rod, a screw with one end threaded into the sleeve, and an electrode disposed at the other end of the screw. Compared with the prior art, the nerve stimulator hasthe advantages that the electrode can be quickly positioned and fixed at the disc ala ganglion, so that the disc ala ganglion treatment can be electrically stimulated at the first time.

The invention belongs to the technical field of medical equipment, and discloses a channel module and an implantable nerve stimulator. The channel module comprises a channel upper cover and a channel lower cover, wherein the channel upper cover is provided with a first metallization area; the channel lower cover is detachably connected with a feed-through piece, and the channel upper cover is buckled on the channel lower cover to form a channel; the feed-through piece is provided with a second metallization area; and the first metallization area and the second metallization area are connected through a gold wire to communicate the feed-through piece with the channel upper cover. According to the channel module and the implantable nerve stimulator, a traditional lead mode is omitted, connection is facilitated and rapid, the space of the channel module is greatly saved, more channels can be arranged in a limited space, and the effective space utilization rate is increased.

This disclosure generally relates to a device, method, and system for diagnosing and treating nerve injuries with electrical stimulation. A probe is provided which connects to a nerve stimulator system which measures voltage and electrical current applied to a living body to detect a nerve injury location. A processor within the nerve stimulator system may adjust the voltage and current output to numb or deaden an injured nerve.

The invention provides a wireless communication system and method, computer equipment and a storage medium, the wireless communication system comprises an IPG and an in-vitro controller, the IPG serves as a client to communicate with the in-vitro controller serving as a server, the server responds to user operation and sends a communication request to the client in a dormant interception state, and the client sends the communication request to the in-vitro controller; the communication request comprises a wake-up instruction or a search instruction in a sleep interception state; the client side responds to the communication request to enter a rapid interception mode, the server side awakens or searches the client side, and the client side enters a to-be-bound state; the client in the to-be-bound state is in a receiving mode and receives one or more of a search instruction, a wake-up instruction, a binding instruction and a sleep instruction in real time, and the client enters an online controlled state after receiving the effective binding instruction; and the client in the online controlled state receives the effective instruction of the server in real time, executes and replies an execution result. According to the application, the communication efficiency of the implantable nerve stimulator IPG and the in-vitro controller is improved.

The invention discloses an external energy controller of a nerve stimulation system. Through a radio frequency way, electric energy is transmitted to an implantable nerve stimulator through a radio frequency way, and the external energy controller and the implantable nerve stimulator communicate. The external energy controller of the nerve stimulation system comprises an input device, an antenna module, a display device, a storage unit and a control unit, wherein the external energy controller receives information through the input device; the antenna module and the stimulator antenna of the implantable nerve stimulator carry out radio frequency coupling so as to send an input signal containing electric energy and control information to the implantable nerve stimulator, and instruction data can be received from the implantable nerve stimulator; the display device is used for displaying the data, the instruction and the input information; the storage unit stores an operation program, the input information and the data; and the control unit is independently connected with the input device, the antenna module and the display device so as to control operation of the whole external energy controller. The external energy controller of the nerve stimulation system can overcome treatment failure caused by short-time communication interruption, and the implantable nerve stimulator can obtain stable power supply.

The invention relates to the field of medical apparatus and instruments, in particular to a nerve stimulator and a manufacturing method thereof. The nerve stimulator comprises a glass base, a plurality of metal columns are disposed on the base, stimulation parts are formed on the surfaces, on the base, of the metal columns, and the density of each metal column is greater than 15 Pin / mm<2>. According to the nerve stimulator, the density of the stimulation parts is high, and the stimulating effect is good. A processing method of the nerve stimulator includes the steps of cutting out a high-density metal column array by using a metal substrate, filling the metal column array with glass and finally conducting double-sided thinning to obtain the nerve stimulator. The manufacturing method has anovel process and unique mode, and the defect that it is difficult to manufacture a high-density nerve stimulation electrode by using other bases such as ceramics in traditional methods is overcome.

An implantable nerve stimulator system comprises an implantable nerve stimulator and an in-vitro energy controller, the implantable nerve stimulator communicates with the in-vitro energy controller in a radio frequency mode and receives electric energy, the implantable nerve stimulator is provided with a main control CPU, a main control memory and a stimulating electrode, the main control memory is used for storing control information containing clinical stimulation parameters, and the main control CPU actively generates a stimulation pulse sequence by using the clinical stimulation parameters and applies the stimulation pulse sequence to the stimulation electrode. The electric pulse stimulation is implemented based on the treatment parameter combination stored in the implantable nerve stimulator, so that only the in-vitro energy controller is needed to provide radio frequency electric energy, and the operation reliability of the implantable nerve stimulator is improved. The implantable nerve stimulator is provided with an energy storage circuit, so that electric energy supply in a short time can be ensured under the condition of sudden communication interruption or unsmooth communication, and treatment interruption is avoided.

The invention relates to the technical field of medical instruments, in particular to an implantable nerve stimulation extension lead. The whole body comprises four connecting channels, the connecting channels are the same in structure, each connecting channel is connected to a four-contact electrode, four contacts of the electrodes are in one-to-one correspondence with connectors and square blocks correspondingly, finally the electrodes are locked through locking screws, after being implanted into a body, a stimulation signal is sent out through a nerve stimulator, sequentially passes through a connecting ring, a spiral line, the connectors and the square blocks of the extension lead, is transmitted to the electrode and then is transmitted into the body, so that the treatment purpose is achieved. The extension lead has multiple connecting channels, is wide in application range, can be connected to multiple electrodes at the same time, is large in treatment range and multiple in selectivity, and can achieve a better treatment effect.

A topical nerve stimulator patch and system are provided including a dermal patch; an electrical signal generator associated with the patch; a signal receiver to activate the electrical signal generator; a power source for the electrical signal generator associated with the patch; an electrical signal activation device; and a nerve feedback sensor.

The invention provides an implantable nerve stimulator, which comprises a rechargeable battery for providing electric energy; an stimulation output module used for outputting a stimulation signal; anauxiliary function module used for providing auxiliary functions related to therapy; an acquisition module used for acquiring electric quantity data of the rechargeable battery; and a processor used for controlling the working states of the stimulation output module and the auxiliary function module according to the electric quantity data so as to adjust the energy consumption of the stimulator.