63 results about "Contraction time" patented technology

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.

Systolic timing intervals are measured in response to delivering pacing energy to a pacing site of a patient's heart. An estimate of a patient's acute response to cardiac resynchronization therapy (CRT) for the pacing site is determined using the measured systolic timing intervals. The estimate is compared to a threshold. The threshold preferably distinguishes between acute responsiveness and non-responsiveness to CRT for a patient population. An indication of acute responsiveness to CRT for the pacing site may be produced in response to the comparison.

The invention relates to medical equipment, and particularly provides vaginal contraction rehabilitation treatment equipment. The vaginal contraction rehabilitation treatment equipment comprises a detector, a flexible air catheter and a handheld host. The detector and the handheld host are connected through the flexible air catheter. According to the vaginal contraction rehabilitation treatment equipment, a waveband line balance graph can be used for monitoring the strength of contractility of muscles around a vagina, meanwhile, a contraction pressure value and contraction time can also be measured, pelvic floor muscle Kegel exercise can be conducted according to a voice prompt sent by the equipment, and therefore the purpose of treating a urinary incontinence disease and a vaginal relaxation disease of a woman is achieved at last. The vaginal contraction rehabilitation treatment equipment is suitable for hospitals or families and can be used for the treatment of a sexual dysfunction in addition to diagnosis and treatment of the urinary incontinence disease and the vaginal relaxation disease of the woman.

The present invention provides a feedback type automatic capacity expansion and contraction method and system based on cluster performance, and belongs to the technical field of communication. The processing method comprises: obtaining parameters of each node and container, collating and obtaining performance indicators of the entire cluster, and storing the performance indicators, wherein the storage format is a timestamp+json format; scoring the collected performance indicators by using a determination model, finally determining whether to perform capacity expansion and contraction, and giving a capacity expansion and contraction scheme; generating a capacity expansion and contraction configuration template according to the capacity expansion and contraction scheme, and issuing a capacity expansion and contraction command; and obtaining a capacity expansion and contraction execution result returned by the cluster. The processing system comprises: a performance collection subsystem and a capacity expansion and contraction determination and execution subsystem. According to the method and system provided by the present invention, the performance of a specific container can be perceived, and the overall performance of the host and the cluster of the container can be perceived to automatically complete capacity expansion and contraction of the container; and the problems that theexisting capacity expansion and contraction method has poor pertinence and a slow response speed are solved.

The invention relates to the field of the production of a floor board, and particularly discloses a composite floor with small expansion rate and contraction rate and a production method thereof. The composite floor board comprises a wearable layer, a color film layer and a base material layer from top to bottom in sequence, wherein the base material layer consists of calcium carbonate, PVC (Polyvinyl Chloride), a plasticizer, a stabilizer and a modifier ACR (Acrylics); the production method comprises the steps of processing for shaping, implementing thermal compounding, implementing surface UV (Ultraviolet) and tempering, cooling and finally implementing slicing and grooving. According to the composite floor board and the production method thereof, the calcium carbonate adopted for the composite floor board has a specification of over 500 meshes; the processing temperature is rationally controlled through the production method, so that the contraction rate and the expansion rate can be effectively lowered; consequently, the lowest contraction rate can reach 0.04% and the lowest expansion rate can reach 0.1%; as the volume change of the composite floor board caused by expansion and contraction is greatly decreased, the use performance and the service life of the composite floor board can be effectively improved.

A protective sports glove worn by athletes during training or for use in a combative event to protect against injury and increase performance (including but not limited to total force generation, grip strength, striking force and speed, muscular endurance, time to contraction, etc.). These gloves are engineered with a dorsal splint system and a cooperating adjustable dual strapping wrist tie system to secure the gloves to the contour of the hands, to ensure they remain tight and fixed, and to support the wrist from excessive bending. The dual strapping system with the dorsal splint system provides increased wrist/hand rigidity mirroring a tightness of hand wrap bandages for maximal bone and tendon support of the hands and wrists, and this novel tie system increases the transfer of force generation to the point of impact.

The present invention discloses a rat myocardial cell separation culture method. According to the present invention, the myocardial cells being subjected to separation culture through the method have characteristics of high survival rate, complete myocardial cell and non-myocardial cell separation, rapid cell adherence, high purity, and early rhythmicity synchronized contraction time, and the method has characteristics of simple operation and good repeatability, is an ideal myocardial cell primary culture method, and can meet requirements of cardiovascular disease generation and development mechanisms, cardiovascular drug and cardiac tissue engineering researches, and a variety of physiological and biochemical experiments.

The invention relates to the field of medical equipment, and discloses a muscle restoration system for paralyzed limbs. The limbs of a patient with upper motor neuron paralysis are paralyzed due to denervation, but a lower motor neuron, a muscle and a motor end plate of the patient with upper motor neuron paralysis are not directly damaged in spite of tissue or cells and can completely receive stimulation, conduct information and do contraction motion; a nerve can conduct bioelectricity, receive electric stimulation and conduct an electric signal; and manual electron motion control is performed at the terminal of a nerve motion conduction path, namely a muscle door node of which the nerve enters the muscle, an external wireless signal controller remotely controls a stimulator in a body through wireless signal transmission, the muscle is directly stimulated by stimulation sent by the stimulator and starts doing contraction motion after receiving stimulation information, and the limbs are driven to act, so that the paralyzed limbs move, and the requirements of training rehabilitation and self-care are met.

A scanning line immediately above a blood vessel is detected using a received signal of a reflected wave of an ultrasonic wave transmitted to the blood vessel, and candidates for front and rear walls of the blood vessel are detected based on the received signal of the scanning line. Then, vascular front and rear walls pairs of front and rear walls are narrowed down from the candidates, and the narrowed-down vascular front and rear walls pair is regarded as one blood vessel and artery/vein identification is performed for each blood vessel. Measurement of vascular function information is performed for the blood vessel determined to be an artery. Determination of an artery/vein is performed based on the relative relationship between the contraction time and the expansion time of the blood vessel.

The present invention has the objective of providing an ablation catheter with balloon which achieves together a decrease in diameter of the balloon at balloon contraction time and increase in reliability of a thermocouple temperature sensor, and simultaneously is resistant to being affected by a heating liquid delivered to within the balloon and is capable of controlling balloon surface temperature with high precision. The present invention is an ablation catheter with balloon which is provided with a shaft having a lumen, a balloon such that the lumen is in communication with the interior of the balloon, and a high-frequency current-delivering electrode which is formed by winding a high-frequency power supply lead wire into a coil around the shaft while sandwiching a temperature sensor lead wire between the high-frequency power supply lead wire and the shaft so that the temperature sensor lead wire is fixed along the long axis direction of the shaft. A thermocouple temperature sensor is formed at a point where the high-frequency power supply lead wire and the temperature sensor lead wire, which configure the high-frequency current-delivering electrode, first come into tactile contact as viewed from the rear end side in the long axis direction.

The invention discloses a device, system and method for controlling the compressing process of a compressing mechanism and a garbage truck. The device for controlling the compressing process of the compressing mechanism comprises a receiver and a controller, wherein the receiver is used for receiving the contraction time of an oil cylinder of a driving mechanism in the compressing mechanism, and the controller is used for calculating the stroke of the oil cylinder of the driving mechanism according to the contraction time and controlling operation of an execution mechanism in the compressing mechanism according to the stroke of the oil cylinder of the driving mechanism. According to the device, system and method for controlling the compressing process of the compressing mechanism and the garbage truck, operation circulation of the garbage compressing truck is controlled through an interior algorithm, interference of signals in the outside world is effectively avoided, and the reliability and working efficiency of the garbage compressing truck are improved.

The invention discloses a measuring method and device for measuring a systole time parameter. The measuring method comprises the steps of acquisition of a pulse oximeter signal, automatic extraction of a characteristic point and digital correction of a characteristic parameter. The device is taken as a hardware carrier of the method. More accurate LVET (Left Ventricular Ejection Time) and measuring results of relevant parameters are obtained on the basis of the pulse oximeter signal by means of a simple measure in order to rapidly obtain clinical diagnostic data related to initial screening of heart disease and cardiac function evaluation. Photoplethysmography equipment for realizing the functions comprises a pulse oximeter signal acquisition unit, a signal processing unit and a data output unit. The entire device is easy to wear, is low in manufacturing cost, and contributes to reduction of the cost on cardiovascular function evaluation and disease monitoring.

The present invention provides a protective sports glove worn. The glove may be used by athletes during training or in a combative event requiring striking to protect against injury and increase performance, including, but not limited to, total force transference, grip strength, striking force and speed, muscular endurance, time to contraction, etc. These gloves have an adjustable dual strapping wrist tie system to secure the gloves to the contour of the hands and ensure they remain tight and fixed. The dual strapping system seeks to provide increased wrist and hand rigidity that mirrors a tightness of hand wrap bandages for maximal bone and tendon support of the hands and wrists. This system increases the transfer of force to the point of impact.

The invention discloses a service network element expansion and contraction method and system as well as a computer readable storage medium. The service network element expansion and contraction method comprises the following steps: acquiring service data of each service network element in all the sub networks at present; when an expansion and contraction request is received, determining a to-be-expanded or to-be-contracted sub network meeting expansion and contraction conditions according to the service data; and according to a preset IP section, performing service network element expansion and contraction on the to-be-expanded or to-be-contracted sub network. According to the scheme, the IP section of the sub network is configured in advance, when the expansion and contraction request isreceived, the to-be-expanded or to-be-contracted sub network meeting the expansion and contraction conditions is determined according to the service data of each service network element in all the sub networks at present, and the service network element expansion and contraction are performed on the to-be-expanded or to-be-contracted sub network according to the preset IP section, so that DHCP isavoided from being used for performing IP random distribution capacity expansion or random capacity contraction, and expansion and contraction better meet service requirements of the sub network.

The embodiment of the invention is suitable for the technical field of bioengineering, and provides bionic muscle strip units and a bionic muscle system. Each bionic muscle strip unit comprises a bionic ligament, a power supply circuit, a first contraction unit, second contraction units and a third contraction unit, wherein the first contraction unit, the second contraction units and the third contraction unit are connected in sequence as required and have different structures. The bionic muscle system comprises a central control system for information collection and regulation, an elastic pipe for containing a refrigerant or a lubricating agent, and the multiple bionic muscle strip units. According to the bionic muscle strip units and the bionic muscle system, pulling is conducted throughmagnetic attraction force generated by an electromagnet so that mutual contraction motion between the contraction units of the three different structures can be completed; and due to the fact that the contraction units are connected without wires and are convenient and quick to assemble, in addition, fetters caused by wires or damage of the wires after repeated contraction during contraction motion can be avoided, the equipment operability is improved, meanwhile, maintaining is facilitated, the service life is greatly prolonged, and the reliability is greatly improved.

The invention relates to a preparation method of a three-dimensional histioid cardiac muscular tissue for studying a simulated microgravity effect, in particular relating to a preparation method of a three-dimensional histioid cardiac muscular tissue microballoon, aiming at solving the problems that according to the current cell three-dimensional culture method for studying the simulated microgravity effect, the cytodex microcarrier material is toxic and is not conducive to generation of cardiocytes, a great number of cells are needed for culture, cell harvesting is difficult, the cells are prone to interference of shearing force when being cultured in a klinostat and the continual contraction time of the cardiocytes is short. The method comprises the following steps: preparing a mixed solution; preparing cardiocytes; preparing a cell suspension, adding the cell suspension to a divalent positive ion solution to obtain microballoons; culturing the mircoballons in a culture medium to form the three-dimensional histioid cardiac muscular tissue. The three-dimensional histioid cardiac muscular tissue prepared by the method prepared by the invention can be cultured on a long-term basis,needs no passage and can maintain contraction of the cardiac muscular tissue for a long time. The method is applied to the research fields of space biology, aerospace medicine and tissue engineering.

The invention consists of a device and method for the prediction of left ventricular ejection fraction (EF) and other cardiac hemodynamic parameters using systolic time intervals in patients with narrow QRS, right bundle branch block, left bundle branch block, right ventricular and/or left ventricular cardiac pacing and in the presence of arrhythmia, such as atrial fibrillation. The device has three inputs: the ECG, a peripheral pulse and a phonocardiogram. Timing parameters are obtained from these signals to calculate a systolic function index, used for the prediction of ejection fraction. Given the invention's features it would be now possible to assess cardiac performance and specifically left ventricular ejection fraction in ambulatory patients as well as during invasive procedures such as the implant of cardiac rhythm management devices. Also, an implantable embodiment of the invention would allow constant monitoring of cardiac performance, parameter adjustment of cardiac devices and automatic drug infusion.

A protective sports glove worn by athletes during training or for use in a combative event to protect against injury and increase performance (including but not limited to total force generation, grip strength, striking force and speed, muscular endurance, time to contraction, etc.). These gloves are engineered with a dorsal splint system and a cooperating adjustable dual strapping wrist tie system to secure the gloves to the contour of the hands, to ensure they remain tight and fixed, and to support the wrist from excessive bending. The dual strapping system with the dorsal splint system provides increased wrist/hand rigidity mirroring a tightness of hand wrap bandages for maximal bone and tendon support of the hands and wrists, and this novel tie system increases the transfer of force generation to the point of impact.

The invention discloses a gob-side entry retaining circulating self-moving type support bracket assembly. The gob-side entry retaining circulating self-moving type support bracket assembly comprises aleft bracket group, a right bracket group and a flexible rail disposed between the left bracket group and the right bracket group, and the left bracket group, the right bracket group and the flexiblerail are used for supporting a back; the left bracket group and the right bracket group are formed by combining unit brackets, and the unit brackets comprise longitudinally extending top beams and retractable stand columns for supporting the top beams. The flexible rail is provided with a transporting mechanism for the transporting the unit brackets. The gob-side entry retaining circulating self-moving type support bracket assembly adopts the longitudinally extending top beams, during long-distance transportation of the unit brackets, only the retractable stand columns are required, the top beams do not need to be set as telescopic structures, the structure is simple, the manufacturing cost is reduced, retraction time of the unit brackets is reduced, and the work efficiency is improved; and the longitudinally extending top beams are adopted to prevent interference between the top beams and the flexible rail, and transportation of the unit brackets along the flexible rail is smoother.