1313results about "Pressure sensors" patented technology

The invention relates to a sensor head device for a heart support system, wherein the sensor head device has at least one sensor carrying element, wherein the sensor carrying element has at least one sensor cavity for accommodating at least one sensor and / or at least one signal transmitter cavity for accommodating at least one signal transmitter.

Medical systems, devices, and methods for determining whether a blood vessel is a vein or an artery. The system includes an optical fiber configured for insertion into a blood vessel coupled with a console having a light source, an optical receiver, processors, and logic stored in memory. The optical fiber includes sensors disposed along its length configured to determine a state or condition of the optical fiber. The state or condition can include a strain, movement, pressure, and / or temperature. The logic is configured to analyze reflected signals from the sensors to determine whether the optical fiber is inserted within an artery or within a vein. The logic may also determine a red-blue shift of a projected light to determine a blood flow direction with respect to the optical fiber.

The invention provides a health monitoring module and electronic equipment. The health monitoring module comprises a shell, an optical heart rate module, a circuit board and a light transmitting part, the shell is fixed to one side of the circuit board, and the shell and the circuit board jointly define a containing space. The shell comprises a conductive part made of conductive materials, one part of the conductive part is exposed out of the top face of the shell, and the other part of the conductive part is electrically connected with the circuit board. The optical heart rate module is located in the containing space, the optical heart rate module is fixed to the circuit board and electrically connected with the circuit board, the optical heart rate module and the light hole are oppositely arranged, and the optical heart rate module emits and receives light through the light hole and the light transmitting piece. The optical heart rate module can be used for acquiring PPG signals of a user. The conductive part can be used for collecting electric signals of a user. And the ECG signal of the user can be obtained after the electric signal is processed. Devices for measuring ECG signals and PPG signals are integrated in one module, so that the module can realize multiple functions in a small size.

The invention relates to the technical field of intelligent nursing, in particular to an electrical impedance tomography-based pressure sore risk perception and prevention control system, which comprises an EIT signal acquisition module, an impedance trend grading module, a risk area judgment module, a bed body intervention control module and an intervention feedback regulation module. According to the invention, through an electrical impedance imaging principle, fine distinguishing of body surface and superficial tissue physiological states of a patient is realized, multi-region impedance signals are continuously collected and dynamically integrated, local tissue perfusion changes and abnormal stress trends are accurately mapped, high-risk regions are automatically identified and classified, bed body action intervention is triggered in real time, and an intervention effect is dynamically tracked; according to the method, intervention parameters are cooperatively adjusted, the response logic and the intervention rhythm of each region are gradually improved, intelligent risk judgment and closed-loop adaptive intervention are completed, individuation, initialization and process data traceability in a nursing scene are promoted, and adaptive response aiming at complex illness conditions and variable nursing requirements is supported.

Some embodiments of the present disclosure include, for example, a method for automatically entering content into a periodontal chart. Such methods include, for example, providing an Intra Oral Scanner (IOS) with an elongate probe extending therefrom, contacting a first point inside an oral cavity with the probe while scanning the cavity with the IOS, determining a position of the first point based on the scanning to determine a position in space of the elongate probe, calculating content to be entered into a periodontal chart, and entering the content into the periodontal chart. Related apparatus and methods are also described.

This invention, which offers the advantage of an automatic repetitive blood pressure measurement that minimizes discomfort for the subject while continuously measuring blood pressure regardless of the subject's movement, thereby enhancing the reliability of the measurement results, which leads to the development of an automatic repetitive blood pressure measurement device and method for a smart blood pressure monitor, relates to blood pressure measurement technology, involving periodically repeating the inflation and deflation of a cuff a set number of times upon receiving a single operation signal input. The method includes the steps of detecting arterial wall vibrations when the cuff pressure is between the systolic and diastolic pressures of the artery during cuff inflation and deflation, recognizing the point where maximum vibration is detected as the systolic blood pressure based on the detection results, recognizing the diastolic blood pressure if the vibration decrease exceeds a threshold, and providing measurement results sequentially, including the recognized systolic and diastolic blood pressure values during the repeated inflation and deflation of the cuff a set number of times.

A medical system is disclosed that includes a medical device having an optical fiber, and an interchangeable connection component configured to provide a fiber optic connection between the medical device and capital equipment. The connection component is configured to facilitate cleaning and / or polishing of fiber optic interfaces include therewith. The connection component is also configured for replacement by a medical technician while the capital equipment is operational. The capital equipment may include one or more of an optical interrogator, a patch cable, a medical probe, an ultrasound machine, a display, a magnet sensor, or an electro-cardiogram (ECG) machine. The medical device may include an elongate member configured for insertion within the patient body, where the optical fiber core extends along a length of the elongate member.

A system obtains high-resolution data of actual over-ground gait rehabilitation interactions through a custom-made wearable system for identifying abnormal gait patterns and the therapists' assistance strategies. The system implements an impedance learning algorithm with feature selection and a goal-directed attractor definition reproduces therapist assistance in a way that integrates clinical insights into the control of lower-limb exoskeletons.

The present invention relates to a walking mat and a walking state determination method using the same, and more particularly, to a walking mat capable of determining a user's walking state and a walking state determination method using the same. A walking state determination device according to an embodiment of the present invention includes a modem that receives and outputs sensing information from a connected walking mat, a memory that stores one or more of predetermined correct walking information and correct standing information, and a processor. The memory may store program instructions executable by the processor that update the correct walking information or the correct standing information when sensing information is received and determine whether an emergency situation exists when sensing information is not received. In this case, the walking mat may generate sensing information through a pressure sensor formed therein and transmit it to the walking state determination device.

The invention discloses an intelligent anti-falling risk management system based on artificial intelligence, and relates to the technical field of artificial intelligence, the intelligent anti-falling risk management system comprises a management center, and the management center is connected with a monitoring acquisition module, a transmission processing module, a body position analysis module and a multi-dimensional supervision module; constructing a resting virtual space for the bedridden old person, and performing position marking on the collected bedridden state data through the resting virtual space based on the intelligent anti-falling bed to obtain a continuous track of the bedridden old person; boundary distance statistics is carried out according to the continuous track of the bedridden patient, the boundary distance is converted into a real-time track fluctuation map, range division is carried out on the real-time track fluctuation map, the range proportion is counted, and a curve judgment range is obtained; carrying out simulation diagnosis through the static lying virtual space to obtain an abnormal identification state, and carrying out dynamic feedback adjustment on the bedridden old people according to the abnormal identification state based on the static lying virtual space to obtain an anti-falling intervention measure; the occurrence of falling-off accidents of old people is effectively reduced, the nursing efficiency is improved, and the burden of nursing personnel is relieved.

Provided are a sensor device which can be made small-sized, a catheter, and a system provided with the sensor device. A sensor device (1) is provided with a pipe-shaped distal-end-side member (23), a pressure sensor (4) and a temperature sensor (5) which are integrated and accommodated in an inner space of the distal-end-side member (23), and lead wires (6) connected to the pressure sensor (4) and the temperature sensor (5) and led out to the rear-end side. In the pressure sensor (4) and the temperature sensor (5), sensor elements (41), (51) are formed on one surface side of respective substrates (42), (52) thereof, and are disposed and integrated so that the other-surface sides of the substrates (42), (52) face each other.

This disclosure relates to a catheter system that for precisely positioning fluid flow restrictors within a blood vessel. In particular, this disclosure provides a catheter system that includes a sheath with a first fluid flow restrictor mounted thereto, and a catheter that is slidably disposed within the sheath and has a second fluid flow restrictor mounted thereto. Inside a blood vessel, the sheath and the catheter are separately slidable, thereby allowing the first and second fluid flow restrictors to be positioned at precise locations within the blood vessel.

Systems and methods of in situ pressure control at an anatomical environment during a procedure are disclosed. An exemplary irrigation and suction system comprises a user input configured to receive from a user a desired pressure to be applied to the anatomical environment, or a desired flow condition corresponding to the desired pressure. The system comprises a pressure sensor to sense a pressure at or near the anatomical environment, and a control module to adjust one or more of an irrigation flow rate or a suction flow rate of at least one working channel of a medical device to maintain the pressure of the anatomical environment at substantially a level of the desired pressure, or to maintain the desired flow condition in the working channel during the procedure.

A system for monitoring a subject in a physical space, the system including: a plurality of sensors for detecting movements of the subject in the physical space; a data processing system configured to: receive from the sensors signals representing detected movements of the subject in the physical space, process the received signals to determine corresponding movements of the subject in the physical space, and select an action from a plurality of predefined actions, based on the detected movement; and one or more output devices for outputting a prompt based on the selected predefined action for the subject.

Systems and methods of in situ unclogging a working channel in a medical device during a procedure are disclosed. An exemplary unclogging system comprises a flow sensor to sense a flow rate through a working channel, and a control module to detect a channel state indicating a presence or absence of clogging based on the flow rate. In the presence of channel clogging, the control module can control one or more of an irrigation source or a suction source to provide respectively irrigation fluid or suction pressure to unclog the obstructed channel. The control module can adjust one or more of an irrigation flow rate or a suction flow rate through the working channel to maintain a desired pressure of the anatomical environment at the anatomical site, or to maintain a desired flow condition in the working channel, during the procedure.

A wearable ring-shaped penile erection hardness measuring device and a method of measuring penile erection hardness are provided in the present application. The wearable ring-shaped penile erection hardness measuring device is configured to measure a hardness value of a penis to be tested, and includes an elastic ring-shaped body, an electronic component accommodating portion, and a processing unit. The elastic ring-shaped body can be worn on the penis to be tested, and includes a sensing portion, and a non-sensing portion connected to the sensing portion. The sensing portion includes an inner layer, an outer layer, a sensing protrusion, a thin film sensing element, and an accommodating space, and is configured to measure an applying force value from the penis to be tested. The electronic component accommodating portion is connected to the elastic ring-shaped body. The processing unit is used to convert the applying force value into the hardness value.

An insert for an article of footwear includes an insert member having top and bottom sides, and an opening extending therethrough, and a housing connected to the insert member to receive an electronic module. The housing includes a tub positioned at least partially on the bottom side of the insert member to receive the module, a flange connected to the tub and extending outward around at least a portion thereof to cover at least a portion of the top side of the insert member, and a peg extending from the flange downward through the opening to the tub. A port is connected to the insert and has an interface accessible within the housing for communication with the module within the housing. A plurality of force sensors are connected to the insert member, and a plurality of conductive leads on the insert connect the sensors to the interface.

Systems and methods of in situ unclogging a working channel in a medical device during a procedure are disclosed. An exemplary unclogging system comprises a flow sensor to sense a flow rate through a working channel, and a control module to detect a channel state indicating a presence or absence of clogging based on the flow rate. In the presence of channel clogging, the control module can control one or more of an irrigation source or a suction source to provide respectively irrigation fluid or suction pressure to unclog the obstructed channel. The control module can adjust one or more of an irrigation flow rate or a suction flow rate through the working channel to maintain a desired pressure of the anatomical environment at the anatomical site, or to maintain a desired flow condition in the working channel, during the procedure.

A method for improved robotic cutting, the method comprising: determining at least one of cutting force data and bone motion data during robotic cutting; determining when at least one of the cutting force data and bone motion data exceeds a predetermined parameter; and when it is determined that at least one of the cutting force data and the bone motion data exceeds the predetermined parameter, providing the user with an indication of the same and pausing the robotic cutting so as to enable the user to mitigate the cause of at least one of the cutting force data and the bone motion data exceeding the predetermined parameter.

A manometric catheter probe includes a flexible printed circuit, one or more pressure sensor assemblies coupled to the flexible printed circuit along a length of the flexible printed circuit, and a first flexible sleeve. Each pressure sensor assembly includes a body. The body includes a central cavity configured to receive the flexible printed circuit and an annular recess of the body. Each pressure sensor assembly further includes a microelectromechanical systems (MEMS) sensor disposed in the annular recess, an electrical connector configured to electrically couple the MEMS sensor and the flexible printed circuit, and a first flexible sleeve disposed over the annular recess of the body. The first flexible sleeve includes a fluid configured to communicate pressure to the MEMS sensor, and a second sleeve is disposed over the pressure sensor assembly.

To provide a suction and irrigation system for maintaining in situ pressure of an anatomical environment at an anatomical site under control during an endoscopic procedure.SOLUTION: Systems and methods for providing in situ pressure control in an anatomical environment during a procedure are disclosed. The exemplary irrigation and aspiration system includes a user input configured to receive from a user a desired pressure to be applied to the anatomical environment or a desired flow condition corresponding to the desired pressure. The system includes a pressure sensor for sensing pressure in or near an anatomical environment during a procedure, and a pressure sensor for sensing a pressure in the anatomical environment during the procedure, or a control module for adjusting one or more of an irrigation flow rate or an aspiration flow rate of at least one working channel of the medical device to maintain a desired flow condition in the working channel.SELECTED DRAWING: Figure 1

A device for providing a passage between a first and second heart chamber is provided. The device includes a middle region having first and second ends, a lumen extending therethrough having a longitudinal axis, a first end region coupled to the first end, and a second end region coupled to the second end. The first end region may be delivered in the first heart chamber in a compressed state and transitioned to a deployed state, the first end region being deformable such that portions of the first end region are expandable to different angles relative to the longitudinal axis. The second end region may be delivered in the second heart chamber in a compressed state and transitioned to a deployed state therein, the second end region being deformable such that portions of the second end region are expandable to different angles relative to the longitudinal axis.

A method for assessing a state of stress of an individual when the individual is contacting a receiving surface of a device comprising a pressure sensor comprising a plurality of elemental gauges, each elemental gauge having a gauge factor of at least 10, the method comprising acquiring and digitizing each signal delivered by each elemental gauges of the pressure sensor each signal comprising a pseudo-periodic part, exploring the signal and detecting patterns corresponding to heartbeats, measuring an Inter-Beat interval and recording in a heartbeat timestamped file each Inter-Beat Interval, from the heartbeat timestamped file computing at least 3 stress indices and categorizing the state of stress of the individual based on the at least three indices and a stress assessment program implementing a trained algorithm, among an increasing stress, a decreasing stress and a neutral state.

The invention discloses a method and a related device for monitoring home rehabilitation of a patient after a cerebral apoplexy interventional operation, and the method comprises the steps: obtaining a flexible pressure sensor, an optical sensor and a three-axis acceleration sensor which are integrated on a wearable device of the patient; the blood pressure feature, the blood glucose feature and the motion feature of the patient are collected in real time and input into the stroke postoperative rehabilitation risk model, the rehabilitation risk level of the patient is obtained, and the rehabilitation risk level comprises a low risk, a medium risk and a high risk; inputting the blood pressure characteristics, the blood glucose characteristics, the motion characteristics and the rehabilitation risk levels into a stroke postoperative rehabilitation suggestion model to generate a personalized rehabilitation suggestion scheme; the blood pressure features, the blood glucose features, the motion features, the rehabilitation risk levels and the personalized rehabilitation suggestion schemes are synchronized to a cloud server, so that a doctor can remotely monitor the rehabilitation condition of the patient. Personalized rehabilitation suggestions are provided by monitoring the physiological and motion data of the patient in real time, and remote monitoring and management of the rehabilitation process of the patient are achieved.

The invention relates to determining blood pressure of a subject based on a pressure signal that has been measured by using a measurement device comprising a) a shell encasing a part of the subject, through which blood flows, b) a pressure applicator applying pressure to the shell and thereby to the encased part of the subject, and c) a pressure sensor measuring the pressure signal on the skin of the encased part of the subject. For several pressure pulses of the pressure signal a respective feature characterizing the respective pressure pulse is determined, wherein based on the respective feature a respective blood pressure determination value is determined, thereby forming a blood pressure determination curve (TPW_M-curve) that is used for determining the blood pressure. This allows to determine the blood pressure with relatively low computational efforts.

A fluid management system including a fluid management console and an associated graphical user interface (GUI) is disclosed. In some instances, the GUI includes a series of start-up screens including a fluid priming screen prompting a user to select between a quick set-up mode and a step-by-step setup mode in order to complete a priming procedure of the fluid cassette, the GUI includes a plurality of medical procedure mode screens including a first mode for use of the fluid management system with a pressure sensing endoscope and one or more modes for use of the fluid management system with an endoscope without a pressure sensor, and / or the GUI includes a screen to input and / or set intraluminal pressure limiter settings into the controller with a confirmation window requiring a multiple step confirmation process to confirm that the input / set intraluminal pressure limiter settings are acceptable.

The invention aims to provide a dual-channel Fabry-Perot cavity optical fiber pressure sensor with high reliability and high precision and a preparation method thereof, the dual-channel Fabry-Perot cavity optical fiber pressure sensor comprises a base, a pressure-sensitive diaphragm and an optical fiber, the pressure-sensitive diaphragm is hydrogel based on a PVA-boric acid complex structure, a carbon dot fluorescent nano-material is doped in the hydrogel, and the optical fiber is doped in the carbon dot fluorescent nano-material. The dual-channel optical system comprises a pressure sensing channel for detecting the change of a Fabry-Perot cavity interference spectrum by adopting a broadband light source, and a damage monitoring channel for exciting carbon dot fluorescence by adopting an excitation light source and judging diaphragm damage through the change of fluorescence signal intensity. The pressure-sensitive diaphragm based on a PVA-boric acid complex structure has a self-repairing function and can drift for a long time; 0.5% F.S. / month, the service life of the sensor is prolonged, and the accuracy of pressure acquisition is improved; meanwhile, a carbon dot fluorescent nano-material with excellent biocompatibility is doped into the pressure-sensitive diaphragm, so that real-time self-monitoring of optical damage is realized, and the carbon dot fluorescent nano-material is used as an auxiliary function to improve the reliability of pressure acquisition of the sensor.

An improved, implanted stress sensor can continuously monitor blood pressure / flow, and / or other cardiovascular variability parameters, in ambulatory and non-ambulatory patients. The sensor includes a flexible substrate configured to wrap around at least a portion of an artery. The flexible substrate includes a sensing portion in an intermediate portion of the flexible substrate and a non-sensing portion split between opposite ends of the flexible substrate. The sensing portion includes a piezoresistive material configured to detect changes in a diameter of the artery. The non-sensing portion includes at least one opening positioned on each of the opposite ends of the flexible substrate and a stiffening mesh around each of the at least one openings. One or more closure mechanisms connect the opposite ends of the flexible substrate via the openings. The sensor can include at least one lead to connect the sensing portion and a controller.

An intraoral apparatus for evaluating oral function of a patient. The intraoral apparatus comprises a dental-engagement element configured to engage with one or more teeth of the patient. The intraoral apparatus additionally comprises an oral media configured to be positioned adjacent to a palate of the patient. The intraoral apparatus further comprises a plurality of sensors associated with the oral media.

The invention relates to the technical field of traditional Chinese medicine intelligent diagnosis, in particular to a pulse condition feature-based traditional Chinese medicine intelligent diagnosis system, which comprises a pulse signal acquisition module, a depth feature extraction and characterization module, a pulse condition semantic mapping and identification module, a personalized adaptation and robustness enhancement module and a diagnosis report module. According to the invention, comprehensive, accurate and robust analysis of pulse condition information is realized, and the accuracy of traditional Chinese medicine intelligent diagnosis is improved.