44 results about "Electric stimulation therapy" patented technology

Methods and systems involve coordinating therapies used for treating disordered breathing. Disordered breathing therapies may include cardiac electrical stimulation therapy and external respiratory therapy as well as other therapies for treating disordered breathing in a patient. The therapies delivered to the patient may be coordinated to enhance effectiveness of the therapy, to reduce therapy interactions, to improve patient sleep, or to achieve other therapeutic goals.

An implantable stimulator and monitor measures a group of heart failure parameters indicative of the state of heart failure employing EGM signals, measures of blood pressure including absolute pressure P, developed pressure (DP=systolic P-diastolic P), and / or dP / dt, and measures of heart chamber volume (V) over one or more cardiac cycles. These parameters include: (1) relaxation or contraction time constant tau (.tau.); (2) mechanical restitution (MR), i.e., the mechanical response of a heart chamber to premature stimuli applied to the heart chamber; (3) recirculation fraction (RF), i.e., the rate of decay of PESP effects over a series of heart cycles; and (4) end systolic elastance (E.sub.ES), i.e., the ratios of end systolic blood pressure P to volume V. These heart failure parameters are determined periodically regardless of patient posture and activity level. The physician can determine whether a particular therapy is appropriate, prescribe the therapy for a period of time while again accumulating the stored patient data for a later review and assessment to determine whether the applied therapy is beneficial or not, thereby enabling periodic changes in therapy, if appropriate. Drug therapies and electrical stimulation therapies, including PESP stimulation, and pacing therapies including single chamber, dual chamber and multi-chamber (bi-atrial and / or bi-ventricular) pacing can be delivered. In patient's prone to malignant tachyarrhythmias, the assessment of heart failure state can be taken into account in setting parameters of detection or classification of tachyarrhythmias and the therapies that are delivered.

An approach to providing disordered breathing therapy includes delivering electrical stimulation therapy modifying a patient's baroreflex response. Disordered breathing therapy may be delivered in response to prediction or detection of disordered breathing events. Various conditions affecting the patient may be evaluated and the baroreflex therapy modified. The therapy may be modified to improve therapy efficacy, to reduce an impact to the patient and / or to mitigate therapy interactions.

An approach to providing disordered breathing therapy involves the use of a plurality of therapy devices to deliver a coordinated disordered breathing therapy regimen to the patient. The plurality of disordered breathing devices includes at least a therapy device that delivers an electrical stimulation therapy modulating a patient's baroreflex response. Other therapy devices may include a cardiac electrical stimulation device, an external respiratory therapy device, and / or other therapy devices used in the treatment of disordered breathing. A therapy controller coordinates the therapies delivered by the plurality of therapy devices.

An apparatus and method for assessing myocardial wall stress is disclosed. The method may be used in conjunction with electro-stimulatory therapy for preventing or reversing ventricular remodeling. In such therapy, one or more stimulatory pulses are delivered to the heart such that a stressed region of the myocardium is pre-excited relative to other regions, thereby subjecting the stressed region to a lessened preload and afterload during systole. The unloading of the stressed myocardium over time effects reversal of undesirable ventricular remodeling.

An approach to providing disordered breathing therapy involves the use of a plurality of therapy devices to deliver a coordinated disordered breathing therapy regimen to the patient. The plurality of disordered breathing devices includes at least a therapy device that delivers an electrical stimulation therapy modulating a patient's baroreflex response. Other therapy devices may include a cardiac electrical stimulation device, an external respiratory therapy device, and / or other therapy devices used in the treatment of disordered breathing. A therapy controller coordinates the therapies delivered by the plurality of therapy devices.

An apparatus and method for reversing ventricular remodeling with electro-stimulatory therapy. A ventricle is paced by delivering one or more stimulatory pulses in a manner such that a stressed region of the myocardium is pre-excited relative to other regions in order to subject the stressed region to a lessened preload and afterload during systole. The unloading of the stressed myocardium over time effects reversal of undesirable ventricular remodeling.

An apparatus and method for reversing ventricular remodeling with electro-stimulatory therapy. A ventricle is paced by delivering one or more stimulatory pulses in a manner such that a stressed region of the myocardium is pre-excited relative to other regions in order to subject the stressed region to a lessened preload and afterload during systole. The unloading of the stressed myocardium over time effects reversal of undesirable ventricular remodeling.

An apparatus and method for reversing ventricular remodeling with electro-stimulatory therapy. A ventricle is paced by delivering one or more stimulatory pulses in a manner such that a stressed region of the myocardium is pre-excited relative to other regions in order to subject the stressed region to a lessened preload and afterload during systole. The unloading of the stressed myocardium over time effects reversal of undesirable ventricular remodeling.

The invention discloses an in-vitro test stimulator, and belongs to the technical field of implanted medical instruments. The in-vitro test stimulator is mainly used for nervous electric stimulation therapy test. The double-channel pulse output in-vitro test stimulator with a user interface can output accurate parameter adjustable electrical stimulation pulse, and is used for treatment test or short-term electric stimulation therapy experience of patients in implanted nerve stimulator operation. The test stimulator is characterized in that the test stimulator adopts integrated structural design, and mainly comprises a shell, a toggle switch, a film key, a display screen, a battery, a printed circuit board and the like. The test stimulator is small and simple; through the key and the switch, pulse parameters and test electrode load impedance can be adjusted and the polarity of an electrode contact can be set, so the test stimulator is intuitive and convenient to operate; and through the design of self-locking function and error operation prevention, error operation of the patients in use can be effectively prevented, and the test stimulator is safe and reliable. The test stimulator can be widely applied to test assessment and experience of electric stimulation therapy.

The invention discloses an electric stimulation therapeutic apparatus with signal prompt, which comprises electrodes, a power supply, a microprocessor, a pulse signal generating module, a power amplifying and boosting circuit, a liquid crystal display and touch screen control panel, a recording and voice prompting module, a signal lamp and an output current detection and protection circuit. The therapeutic apparatus of the invention is provided with two groups of independent output channels, can adopt a prescription therapeutic mode and a free programming therapeutic mode, can control an amplitude, a pulse width, a frequency and a therapeutic time of a therapeutic pulse by programming with the microprocessor, realizes human-computer interaction by using the control panel and a liquid crystal display, facilitates the performance of electric stimulation therapy of doctors on patients by giving acoustic and optical command prompts and has very good rehabilitation effect on the patients suffering from I-grade to III-grade myasthenia caused by brain paralysis or other reasons.

Described are devices and methods for treating various disorders of the pelvic floor by means of electrical stimulation of the pudendal nerves, and means for delivering one or more drugs in association with such electrical stimulation therapies. One or more electrical stimulation signals are applied, and one or more drugs are infused, injected or otherwise administered, to appropriate portions of a patient's pelvic floor and the pudendal nerves or portions thereof in an amount and manner effective to treat a number of disorders, including, but not limited to, urinary voiding dysfunction, fecal voiding dysfunction, constipation, stress incontinence, urge incontinence, urinary retention disorder, sexual dysfunction, orgasmic dysfunction, erectile dysfunction, pelvic pain, prostatitis, prostatalgia and prostatodynia.

An acusector and electrical stimulus therapeutic instrument which can output various wave shapes comprise a power circuit and an acusector probe as well as a micro control unit (MCU), a protection circuit, a D / A converter, a bipolar power output circuit and a keyboard input part; wherein, the power circuit is connected with the MCU, the keyboard input part and the D / A converter are respectively connected with the MCU by data buses, the output end of the D / A converter is connected with the input end of the bipolar power output circuit, and the output end of the bipolar power output circuit is connected with the input end of the protection circuit; the output end of the protection circuit is respectively connected with the MCU and the input end of the acusector probe. The invention can output various therapeutic wave shape signals with different multipath wave shapes and independent bipolarity, can use the basic acusector, electrical stimulus and dedicated prescription acusector or electrical stimulus by combination, thus realizing keeping classic acupuncture manipulation and electrical stimulation therapy wave shape while considering individual differences and endurance of patients at utmost to achieve better effect of therapy.

Substernal implantable cardioverter-defibrillator (ICD) systems and methods for providing substernal electrical stimulation therapy to treat malignant tachyarrhythmia, e.g., ventricular tachycardia (VT) and ventricular fibrillation (VF) are described. In one example, an implantable cardioverter-defibrillator (ICD) system includes an ICD implanted in a patient and an implantable medical electrical lead. The lead includes an elongated lead body having a proximal end and a distal portion, a connector at the proximal end of the lead body configured to couple to the ICD, and one or more electrodes along the distal portion of the elongated lead body. The distal portion of the elongated lead body of the lead is implanted substantially within an anterior mediastinum of the patient and the ICD is configured to deliver electrical stimulation to a heart of the patient using the one or more electrodes.

An apparatus and method for reversing ventricular remodeling with electro-stimulatory therapy. A ventricle is paced by delivering one or more stimulatory pulses in a manner such that a stressed region of the myocardium is pre-excited relative to other regions in order to subject the stressed region to a lessened preload and afterload during systole. The unloading of the stressed myocardium over time effects reversal of undesirable ventricular remodeling.

Methods, devices, kits and compositions to treat a myocardial infarction. In one embodiment, the method includes the prevention of remodeling of the infarct zone of the ventricle using a combination of therapies. The method may include the introduction of structurally reinforcing agents. In other embodiments, agents may be introduced into a ventricle to increase compliance of the ventricle. The prevention of remodeling may include the prevention of thinning of the ventricular infarct zone. Another embodiment includes the reversing or prevention of ventricular remodeling with electro-stimulatory therapy. The unloading of the stressed myocardium over time effects reversal of undesirable ventricular remodeling. These therapies may be combined with structurally reinforcing therapies. In other embodiments, the structurally reinforcing component may be accompanied by other therapeutic agents. These agents may include but are not limited to pro-fibroblastic and angiogenic agents.

Electrical stimulation therapy is provided for a patient. A user is informed that a user-supplied electrical stimulation waveform can be entered into an electronic programmer. At least in part via a user interface of the electronic programmer, it is detected that the user-supplied electrical stimulation waveform has been received by the electronic programmer. A determination is made to whether the user-supplied electrical stimulation waveform is compliant with a set of predetermined restrictions. In response to a determination that the user-supplied electrical stimulation waveform is compliant with the set of predetermined restrictions, a pulse generator is instructed to generate electrical stimulation pulses based on the user-supplied electrical stimulation waveform.

Bioelectrical signals may be sensed within the brain by two or more electrodes to determine characteristics of a function of the brain. The signals obtained by the electrodes may be plotted over time to determine whether the brain function exhibits a normal or an abnormal pattern. If the brain function exhibits an abnormal pattern, an implantable medical device may dynamically determine based on the abnormal pattern and a previously-obtained plot associated with normal brain function, an appropriate electrical stimulation therapy. Application of the appropriate electrical stimulation therapy causes the brain function to shift from the abnormal pattern to the normal pattern.

The invention discloses an in-vitro test stimulator, and belongs to the technical field of implanted medical instruments. The in-vitro test stimulator is mainly used for nervous electric stimulation therapy test. The double-channel pulse output in-vitro test stimulator with a user interface can output accurate parameter adjustable electrical stimulation pulse, and is used for treatment test or short-term electric stimulation therapy experience of patients in implanted nerve stimulator operation. The test stimulator is characterized in that the test stimulator adopts integrated structural design, and mainly comprises a shell, a toggle switch, a film key, a display screen, a battery, a printed circuit board and the like. The test stimulator is small and simple; through the key and the switch, pulse parameters and test electrode load impedance can be adjusted and the polarity of an electrode contact can be set, so the test stimulator is intuitive and convenient to operate; and through the design of self-locking function and error operation prevention, error operation of the patients in use can be effectively prevented, and the test stimulator is safe and reliable. The test stimulator can be widely applied to test assessment and experience of electric stimulation therapy.

The invention discloses a small acupuncture-moxibustion physiotherapy massage device. The small acupuncture-moxibustion physiotherapy massage device comprises a positioning shell, a vibration motor is arranged at the bottom end of an inner cavity of the positioning shell, an installation board is arranged on the upper surface of the vibration motor, an installation ring is arranged on the upper surface of the installation board, and acupuncture-moxibustion needle heads are arranged in the installation ring; a connecting end is arranged on the lower surface of the positioning shell and connected with a frequency converter through a wire, a battery is arranged on the lateral side of the frequency converter, and a charging hole is formed in the lateral side of the battery. According to the small acupuncture-moxibustion physiotherapy massage device, the magnetic force on an upper electromagnet and a lower electromagnet is indirectly controlled through a controller as required, the extending amount of the acupuncture-moxibustion needle heads is adjusted accordingly, the frequency converter can be controlled through the controller as required, and then the current of the adopted micro-electrical stimulation therapy is adjusted; as the independent battery is arranged, convenience is brought to utilization of people during outgoing; as the whole size is small, people can conveniently carry and use the small acupuncture-moxibustion physiotherapy massage device.

The invention discloses magnesium base liquid metal for simultaneously implementing thermal therapy and electric stimulation therapy and equipment utilizing the same. A nanometer magnesium material based on tumor thermotherapy and gallium-indium alloy liquid metal based on electric stimulation are combined in the magnesium base liquid metal so as to achieve the purpose of combining the thermal therapy and the electric stimulation to doubly treat a tumor, because the gallium-indium alloy liquid metal is liquid metal at the normal temperature, the liquid metal is printed on the skin in a jet printing mode and fitted with the skin perfectly, accordingly better current transmission and signal stimulation are achieved, and because the nanometer magnesium material has excellent photon absorbing ability and degradability, the nanometer magnesium can be applied to photon absorbing laser nanometer thermal therapy. In the magnesium base liquid metal for simultaneously implementing the thermal therapy and the electric stimulation therapy and the equipment utilizing the same, 30-min square wave electric signal stimulation with the frequency of 333 Hz, the current intensity of 1.9 mA and the duty ratio of 6.67% and 10-min laser signal stimulation with the irradiating power of 1.2 W are added on tumor tissue to inhibit tumor cells from growing, meanwhile the tumor cells are killed, and the purpose of treating cancer is achieved.

The invention discloses a multifunctional intelligent muscle electric stimulation therapy system, which is used for treating extremity diseases caused by partial denervation, total denervation and peripheral nerves, and adopts a technology that electric energy released by using a pulse circuit acts on a muscle system and then on a muscle tissue tips to cause a series of physiological reaction of muscular tissue endings. The system provides multiple treatment strategies for treatment implementation. The system mainly comprises a 220 V fundamental frequency power supply (1), an intelligent on-off switch (2), a primary rectification circuit (3), a storage battery (4), a power controller (5), a control circuit (6), a trigger circuit (7), a pulse generation circuit (8) and an electric stimulation terminal (9), wherein the control circuit (6) includes an induction antenna (61), a single chip microcomputer (62) and a control output circuit (63). The invention provides multiple solutions for electric stimulation therapy to human muscular tissues, and has the advantages of controlled multiple parameters, abundant functions, stable performance, safety, reliability and the like.

Methods for electrically stimulating body tissues to improve function or reduce symptoms provide an electrical stimulation system having two or more electrodes that are capable of being switched independently from a hyperpolarizing (depolarizing) state to a hypopolarizing state. Multiple combinations of hyperpolarizing electrodes and hypopolarizing electrodes are created by polarity switching to determine a polarity configuration having the best performance as determined by symptom reporting and clinical diagnostic tests. Polarity switching is triggered manually or is programmed to be switched automatically. Determining the configuration providing electrical stimulation resulting in the greatest benefit allows the system to be operated with one or more electrodes in a hypopolarizing state, thereby reducing energy requirements, tissue tolerance, and tissue fatigue.

Techniques, systems, and devices are disclosed for delivering stimulation therapy to a patient. In one example, a medical device senses, via one or more electrodes, one or more oscillations of a bioelectrical signal of a brain of a patient. In response to sensing the one or more oscillations, the medical device generates a plurality of bursts of stimulation therapy pulses, the plurality of bursts comprising an inter-burst frequency selected based on a frequency of the one or more oscillations of the bioelectrical signal. Further, the medical device delivers the plurality of bursts of stimulation therapy pulses to the patient to modulate a state of the patient associated with the one or more oscillations of the bioelectrical signal.

The invention provides equipment and a method for detecting human bodyload impedance of electric stimulation therapy equipment and belongs to the field of medical equipment. The equipment comprises an amplifier A1, wherein an inverted input end of the amplifier A1 is grounded through a sampling resistor Rs, an output end of the amplifier A1 is connected with a base of an NMOS transistor N1, a forward input end of an amplifier A2 is connected with a source of the NMOS transistor N1, an inverted input end of the amplifier A2 is connected with an output end of the amplifier A2, and the output end of the amplifier A2 outputs current detection voltage. Voltage is taken from a current sampling resistor of a constant-current source circuit, the current detection voltage is obtained after amplification by an amplifying circuit with high input impedance, judgment and calculation are performed on the basis of the obtained current detection voltage, current setting voltage, current sampling resistance as well as power voltage of the constant-current source circuit, and the value of the human bodyload impedance can be obtained. Compared with the method which cannot detect human bodyload impedance value in real time in the prior art, the equipment and the method have the advantages that output current can be regulated according to the human bodyload impedance value, and safety is improved.

Power saving communication techniques for communicating in a medical device system. One example medical device system may be for delivering electrical stimulation therapy to a heart of a patient, and may include a first implantable medical device implanted in a first chamber of the heart and configured to determine one or more parameters, a medical device physically spaced from and communicatively coupled to the first implantable medical device, the medical device configured to deliver electrical stimulation therapy to the heart of the patient, wherein the first implantable medical device is further configured to: compare a value of a first determined parameter to a first threshold; if the value of the first determined parameter passed the first threshold, communicate a first indication to the medical device; and if the value of the first determined parameter has not passed the first threshold, not communicating the first indication to the medical device.

The invention relates to the technical field of medical health care, in particular to a device and method for repairing postpartum diastasis recti abdominis. The device comprises a main unit, electrode wires and electrode sheets, the main unit is internally provided with a microprocessor, a Bluetooth circuit, a liquid crystal display circuit, a key circuit, an alarming circuit, a charging management circuit, a voltage adjusting circuit, a power switching circuit, a power management circuit, a first-level boosted circuit, a second-level boosted circuit, a protection circuit, a bridge-type stimulation circuit, a waveform control circuit, a charging management circuit, a lithium battery and an adaptor, the output end of the main unit is connected with the electrode wires through the electrodesheets, the electrode sheets are applied to the human body, and diastasis recti abdominis is restored through electric stimulation therapy. The electric stimulation therapy is adopted for the deviceand method, the muscle force can be exercised and reinforced, the muscular atrophy of disuse is prevented and treated, the muscle can be subjected to functional movement, and thus diastasis recti abdominis is repaired.