192results about "Endoradiosondes" patented technology

Embodiments include a method of diagnosing gastroparesis or suspected gastroparesis, the method comprising: obtaining data representing a time series of readings from gas sensing apparatus housed within a ingestible capsule device orally ingested by a subjected; processing the readings to detect one or more gastroparesis indicator spikes in the CO2 concentration with respect to time; based on the detected one or more gastroparesis indicator spikes in the CO2 concentration with respect to time, diagnosing gastroparesis or suspected gastroparesis.

A system including: an antenna configured to be implanted in a region a living body, wherein a frequency response and / or attenuation response of the antenna shifts in response to changes in a physiological condition of the living body at the region; an input / output module outside the living body and configured to actuate the antenna to generate a response signal and to receive the response signal, wherein the response signal indicates a frequency response and / or attenuation response of the antenna; and a processor configured to: detect whether the frequency response and / or attenuation response indicates a shift in the frequency and / or attenuation response of the antenna; and in response to the detection of the shift issue and / or record a notice that a change occurred in the physiological condition at the region inside the living body.

The invention provides a degradable and stretchable wireless sensor with a multilayer circuit and a preparation method of the degradable and stretchable wireless sensor. The wireless sensor comprises an integrated folding structure and a packaging layer, the integrated folding structure comprises a plurality of layers of snakelike wire structures and a plurality of electrode plates; the snakelike wire structure provides inductance, and the electrode plate provides capacitance; the snakelike wire structure is formed by a planar and multi-cycle snakelike wire structure formed by a biodegradable metal and biodegradable polymer composite layer through multiple times of 180-degree twisting and folding, and patterns of the snakelike wire structure are overlapped after folding so as to realize effective series connection of the inductance coils; the electrode plates are bonded with each other through a biodegradable dielectric layer; the snakelike wire structure adopts a neutral axis separation design at the arc section, namely, the wire width is divided into multiple strands. Reliable series connection of multiple layers of coils can be achieved, inductance is effectively increased, high-frequency resistance is reduced, and therefore wireless transmission performance is improved, and meanwhile the requirements for flexibility, stretchability and biodegradability are completely met.

Various embodiments are described herein for a device, system, and method for identifying a location of an ingestible device within a gastrointestinal tract of a body. In some embodiments, the ingestible device includes a sensing unit with an axial optical sensing sub-unit located proximal to at least one end of the device, and a radial optical sensing sub-unit located proximal to a radial wall of the device, and may autonomously identify a location within the gastrointestinal tract. In some embodiments, the ingestible device includes optical illumination sources and detectors that operate at a plurality of different wavelengths, and may discern regions of a gastrointestinal tract by using the reflection properties of organ tissue and occasional particulates. In some embodiments, the ingestible device may sample fluid or release medicament based on a detected device location.

Provided is a bio-adhesive device including an adhesive material layer, an electronic device layer, and a protective film layer to have advantages of being harmless to the human body, being naturally degraded in the body without a separate removal process, and capable of observing the movement of internal organs more closely in real time from outside the body.

The invention relates to an ingestible electrochemical sensor which is characterized in that its housing has electrolyte-admitting inlets through which an aqueous electrolyte, gastric acid, for example, can penetrate into the interior from the surroundings of the sensor and can serve as an electrolyte in the sensor.

To provide systems and methods for continuous monitoring of analyte values.SOLUTION: A method for wireless data communication between an analyte sensor system and a mobile device comprises: storing identification information associated with a transceiver of the analyte sensor system, the identification information entered by a user of the mobile device via a custom application running on the mobile device; causing the custom application to enter a background mode; searching for advertisement signals; receiving an advertisement signal from the transceiver; authenticating the transceiver; prompting the user to bring the custom application to a foreground mode; causing the custom application to request a confirmation from the user that a data connection with the transceiver is desired; receiving the confirmation from the user; and completing the data connection with the transceiver.SELECTED DRAWING: Figure 5

This invention discloses an external communication module configured to communicate with a swallowable intracellular device. The communication module includes a receiving unit and a transmitting unit. The receiving unit operates within a first frequency range and is configured to receive signals from the intracellular device. The transmitting unit operates within a second frequency range different from the first frequency range and is configured to transmit signals to the intracellular device. The transmitting unit is also configured to act as an auxiliary receiving unit to receive signals from the intracellular device.

Techniques for determining whether a ventricular depolarization is a premature ventricular contraction (PVC) depolarization can include processing circuitry of a medical system that identifies an interval from a maximum slope point to a minimum slope point of each of a plurality of ventricular depolarizations and, for each of the plurality of ventricular depolarizations as a current ventricular depolarization, determines that an interval from a maximum slope point to a minimum slope point of the current ventricular depolarization, a previous adjacent ventricular depolarization of the plurality of ventricular depolarizations, and a subsequent adjacent ventricular depolarization of the plurality of ventricular depolarizations satisfies one or more slope criteria. The processing circuitry determines, based on the interval from the maximum slope point to the minimum slope point that satisfies the one or more slope criteria, that the current ventricular depolarization is a PVC depolarization.

Various examples describe a livestock monitoring system and method. A sensor signal may comprise a rotational component describing a rotation of the sensor within an animal and a linear component describing a linear movement of the sensor within the animal. The rotational component may be used to identify an animal respiration signal. The animal respiration signal and the linear component may be used to generate a respiration-corrected linear component. An animal heart signal may be detected from the respiration-corrected linear component.

According to some embodiments, a medical device includes an optical sensor arrangement configured to provide an optical signal associated with the patient, a processor, and a memory operably coupled to the processor and storing instructions. When executed by the processor, the instructions cause the medical device to perform operations including receiving the optical signal, identifying a target time interval in the optical signal, and modifying sampling parameters of the optical sensor arrangement such that the optical sensor arrangement provides the optical signal at a first sampling frequency during the target time interval, and at a second sampling frequency during at least a portion of time outside the target time interval, wherein the first sampling frequency and the second sampling frequency are different. The method may further include operating the optical sensor arrangement to provide the optical signal using the modified sampling parameters.

Disclosed are a tissue expander for breast reconstruction comprising an MMP sensor and thus being capable of real-time capsular contracture monitoring and treatment, and a patient information system linked thereto. According to these, a patient or medical staff can easily check and evaluate capsular contracture, which may occur when wearing a tissue expander for breast reconstruction, and whether inflammation, a side effect, or the like is caused thereby, even outside the human body in real time. Accordingly, before or when capsular contracture occurs, effective treatment and response are possible.

A system includes processing circuitry configured to receive a message transmitted from a medical device. The message is indicative of an acute health event of a patient detected by the medical device. The processing circuitry is configured to, in response to the message, determine a location of the patient, generate an alert indicative of the location and the acute health event of the patient, and control transmission of the alert to a response network controller. The response network controller is configured to, in response to the alert, determine a plurality of connected portable treatment devices of a response network based on the location and transmit a treatment request signal to the plurality of connected portable treatment devices.

Disclosed is an implant and method of making an implant. The implant having a housing that defines a cavity. The housing includes a sensor comprising a base attached to a diaphragm wherein said base may be positioned within said cavity. The sensor may be a capacitive pressure sensor. The diaphragm may be connected to the housing to hermetically seal said housing. The sensor may include electrical contacts positioned on the diaphragm. The attachment between the base and the diaphragm may define a capacitive gap and at least one discontinuity configured to enhance at least one performance parameter of said implant.

An implantable intraocular physiological sensor (e.g., 200) for measuring intraocular pressure, glucose concentration in the aqueous humor, and other physiological characteristics. The implantable intraocular physiological sensor (e.g., 200) may be at least partially powered by a fuel cell, such as an electrochemical glucose fuel cell (e.g., 210). The implantable intraocular physiological sensor (e.g., 200) may wirelessly transmit measurements to an external device. In addition, the implantable intraocular physiological sensor may incorporate aqueous drainage and / or drug delivery features.

An apparatus for generating magnetic field gradients, comprising (a) a first planar electromagnetic coil set configured to generate a first magnetic field gradient with respect to a first axis, (b) a second planar electromagnetic coil set configured to generate a second magnetic field gradient with respect to a second axis orthogonal to the first axis, (c) a third planar electromagnetic coil set configured to generate a third magnetic field gradient with respect to a third axis orthogonal to the first and second axes, and (d) a controller configured to selectively power the first, second, and / or third electromagnetic coil sets to sequentially generate positioning magnetic field gradients with respect to each of the first, second, and third axes, at least a portion of each positioning magnetic field gradient having a magnetic field magnitude that monotonically varies along the respective axis.

System and method for locating a medical device A computer-implemented method for locating a medical device is disclosed. The method comprises analysing a first set of signals received from a medical device at a plurality of receivers and, based at least in part on the analysing, selecting a first subset of receivers from the plurality of receivers, the first subset of receivers comprising at least three receivers. The method further comprises estimating the location of the medical device.

A method for imaging a patient's gastrointestinal tract using a capsule camera and a patient positioning system are disclosed. According to the method, the capsule camera is administered to a patient by swallowing the capsule camera through patient's mouth. For each target examination position selected from a set of examination positions: the patient positioning system is adjusted to a target positioner bed position associated with the target examination position with the patient on the positioner be. Adjusting patient positioning system comprises adjusting the positioner bed to tilt at a tilt angle, and wherein the set of examination positions comprises at least two different tilt angles; and the patient positioning system still is held at the target examination position for a pre-defined period of dwelling time to allow the capsule camera to capture stable pictures. Image data captured by the capsule camera are then collected.

The present disclosure relates to a sleeve gastrectomy assisting device including a resection guide configured to be inserted into a stomach of a patient and have a changeable form, a measurer configured to be installed at the resection guide and measure a pressure applied to the resection guide, and a monitor configured to be connected to the measurer and provide at least one of a resection length information or a resection position information through a pressure value measured by the measurer.

An implantable pressure sensor. In some embodiments, a system includes a pressure sensor, the pressure sensor including a piezoresistive element including a plurality of carbon nanotubes in a polydimethylsiloxane matrix.

Devices, systems, and methods are disclosed for in vivo monitoring of internal mechanical stresses associated with physiological phenomena of internal body structures, such as the heart, lung, and / or gastrointestinal tract, in a host. The disclosed devices, systems, and methods include an in vivo mechanical stress sensor implantable within the body of the host.

A method of sensing a physiological parameter involves advancing a delivery catheter to a right atrium of a heart of a patient via a transcatheter access path, advancing the delivery catheter through an atrial septal wall into a left atrium of the heart, deploying a distal anchor of a sensor implant device from the delivery catheter, anchoring the distal anchor of the sensor implant device to a first pulmonary vein, withdrawing the delivery catheter from the first pulmonary vein, thereby exposing at least a portion of a sensor module of the sensor implant device in the left atrium, deploying a proximal anchor of the sensor implant device from the delivery system, anchoring the proximal anchor of the sensor implant device to a second pulmonary vein, and withdrawing the delivery catheter from the heart.

An implantable medical device is disclosed. A housing includes a hollow body forming a first electrode on an outer surface with end caps affixed to opposite ends, one end cap forming a second electrode. A microcontroller circuit is provided and includes a microcontroller operable under program instructions stored within a non-volatile memory device. An analog front end is interfaced to the electrodes to sense electrocardiographic signals. A transceiver circuit is operable to wirelessly communicate with an external data device. The program instructions define instructions to continuously sample the electrocardiographic signals into the non-volatile memory device and to offload the non-volatile memory device to the external data device. A receiving coil and a charging circuit are operable to charge an onboard power source for the microcontroller circuit.

The gastrointestinal capsule provides mechanical stimulation within the gastrointestinal tract. The capsule may be deployed in a subject's gastrointestinal tract orally by the subject ingesting the capsule. The capsule may mechanically stimulate any desired region within the gastrointestinal tract, including the stomach, small intestine, and large intestine. The mechanical stimulations provided by the capsule are applied to a portion of the inner walls or lining of a section of the gastrointestinal tract to simulate satiety.

A sensor, system, and method for detecting and correcting for an effect on an analyte indicator of an analyte sensor. The analyte indicator may have a first detectable property that varies in accordance with an analyte concentration and an effect on (e.g., degradation of) the analyte indicator. The analyte sensor may also include an interferent indicator having a second detectable property (e.g., absorption) that varies in accordance the effect on the analyte indicator. The analyte sensor may generate (i) an analyte measurement based on the first detectable property of the analyte indicator and (ii) an interferent measurement based on the second detectable property of the interferent indicator. The analyte sensor may be part of a system that also includes a transceiver. The transceiver may use the analyte and interferent measurements to calculate an analyte level.

A wireless communication capsule sensor (1) with an electronic magnetic switch (132) includes a battery (130), a microprocessor (140) and an actuation module (13). The battery (130) is electrically connected to the microprocessor (140) through an electronic magnetic switch (132) and an energy storage element (131). The actuation module (13) is electrically connected to the microprocessor (140). The energy storage element (131) stores energy using a small current outputted by the battery (130). When the microprocessor (140) is in sleep mode and the electronic magnetic switch (132) receives an external magnetic field, the electronic magnetic switch (132) outputs a trigger signal (1320) to wake up the microprocessor (140), so the microprocessor (140) uses the electrical energy of the storage element and battery (130) to drive the actuation module (13) for bio-signal detection or physical therapy. When the microprocessor (140) is in working mode and the electronic magnetic switch (132) receives the magnetic field again, the electronic magnetic switch (132) outputs a trigger signal (1320), and the microprocessor (140) stops the operation of the actuation module (13).

In various examples, an audible frequency generating system for use in an implantable device including a housing of the implantable device. The housing includes at least one wall formed to at least partially surround an interior of the housing. A frequency generator is configured to produce an audible sound within the interior of the housing. At least one conductor is electrically coupled to the frequency generator. A fastening element secures the conductor to the at least one wall of the housing, wherein the frequency generator is constrained within the housing by the at least one conductor secured to the at least one wall of the housing, such that the frequency generator includes a floating configuration relative to the housing.

Load sensing spinal implants having at least one sensor and an antenna are disclosed. An example implant may include an interbody cage extending in a longitudinal direction from a proximal end to a distal end and in a widthwise direction from a first lateral end to a second lateral end; and an electronics portion including a housing defining a sealed cavity for supporting an electronics assembly and a battery therein. The implant may include at least one antenna in electrical communication with the electronics assembly; and at least one strain gauge configured to detect a localized force experienced by the interbody cage. The at least one antenna may be configured to transmit information received from the at least one strain gauge to an external device. The electronics assembly may be disposed on the side of the cage, a distal end of the cage, or inside a window of the cage.

The present invention provides a biological information acquisition device or method for acquiring electrocardiogram information and blood flow-related information that can acquire biological information without reducing the accuracy of intestinal measurements and without ensuring the reproducibility of measurement values, regardless of the type of stool or foreign object being measured. [Solution] A biological information acquisition device comprising a measuring unit, a processing unit for performing calculations on data obtained by measurement, and an output unit for outputting the calculation data from the processing unit as a signal, wherein the measuring unit is provided with an optical sensor and a temperature sensor arranged close to each other in an installation area in a specific circumferential direction of the flexible shaft, and a strip-shaped or cap-shaped cleaning cover is provided on the shaft head of the flexible shaft, excluding the specific circumferential direction, for cleaning by contacting the inner wall of the body cavity.