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44 results about "Electric stimulation therapy" patented technology

Implantable medical device for treating cardiac mechanical dysfunction by electrical stimulation

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.
Owner:MEDTRONIC INC

Electric needle and electric stimulation therapeutic equipment capable of outputting various waveforms

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.
Owner:INST OF BIOMEDICAL ENG CHINESE ACAD OF MEDICAL SCI

Small acupuncture-moxibustion physiotherapy massage device

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.
Owner:SUZHOU XINENG ENVIRONMENTAL SCI & TECH CO LTD

Magnesium base liquid metal for simultaneously implementing thermal therapy and electric stimulation therapy and equipment utilizing the same

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.
Owner:TSINGHUA UNIV

Equipment and method for detecting human bodyload impedance of electric stimulation therapy equipment

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.
Owner:唐银香
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