A system for acquiring physiological data from a patient, the system comprising: a smartphone configured for wireless communication; an adapter for releasably mounting to the smartphone; a sensor module for releasably mounting to the adapter, the sensor module comprising at least one sensor for acquiring physiological data from the patient; and a software app running on the smartphone for (i) wirelessly controlling operation of the sensor module and wirelessly receiving the physiological data from the sensor module, and (ii) wirelessly communicating with a remote location.

A data transmission system for transmitting an electrical data to a nerve cell. A data receiving system for receiving an electrical data from a nerve cell has at least two phototransistor crystals that is stimulated by light to form an electrical signal; an image source that allows the light to be sent to the phototransistor crystals and allows controlling the amount of light transmitted to each phototransistor crystal independently of each other, and at least one control unit that is connected to the image source that controls the amount of light transmitted from the image source to each of the phototransistor crystals.

Improved optical coherence tomography systems and methods to measure thickness of the retina are presented. The systems may be compact, handheld, provide in-home monitoring, allow the patient to measure himself or herself, and be robust enough to be dropped while still measuring the retina reliably.

A system for measuring the presence and/or the concentration of an analysis substance dissolved in a bodily fluid includes a light source configured to emit an excitation light, a detection device, and an optical device defining an excitation beam path of the excitation light from the light source to a measurement region of a sample and defining a detection beam path of a detection light from the measurement region of the sample to the detection device. The detection device is configured to detect the detection light and comprises a light-sensitive sensor and at least one filter element disposed in the detection beam path. The at least one filter element being configured to suppress a transmission of light with wavelengths outside of a specified analysis wavelength range about a selected IR absorption band that is specified as being characteristic for the analysis substance.

A powered surgical stapling assembly comprising a motor, an end effector, a sensor, a display, and a control circuit is disclosed. The end effector comprises a first jaw and a second jaw movable relative to the first jaw. The end effector is configured to clamp tissue between the first jaw and the second jaw. The sensor is configured to measure a parameter of the tissue clamped within the end effector. The control circuit is configured to monitor the parameter sensed by the sensor and identify when the monitored parameter stabilizes within a stabilization range. The monitored parameter is considered stable when a rate at which the monitored parameter changes falls below a predetermine threshold rate of change. The control circuit is further configured to display to a user when the parameter stabilizes.

Apparatus and methods remove a voltage offset from an electrical signal, specifically a biomedical signal. A signal is received at a first operational amplifier and is amplified by a gain. An amplitude of the signal is monitored, by a first pair of diode stages coupled to an output of the first operational amplifier, for the voltage offset. The amplitude of the signal is then attenuated by the first pair of diode stages and a plurality of timing banks. The attenuating includes limiting charging, by the first pair of diode stages, of the plurality of timing banks and setting a time constant based on the charging. The attenuating removes the voltage offset persisting at a threshold for a duration of at least the time constant. Saturation of the signal is limited to a saturation recovery time while the saturated signal is gradually pulled into monitoring range over the saturation recovery time.

A noninvasive physiological sensor can include a first body portion and a second body portion coupled to each other and configured to at least partially enclose a user's finger. The sensor can further include a first probe coupled to one or more emitters and a second probe coupled to a detector. The first probe can direct light emitted from the one or more emitters toward tissue of the user's finger and the second probe can direct light attenuated through the tissue to the detector. The first and second probes can be coupled to the first and second body portions such that when the first and second body portions are rotated with respect to one another, ends of the first and second probes can be moved in a direction towards one another to compress the tissue of the user's finger.

A medical sensor extension cable includes a sensor electrical contacting interface, that receives an electrical sensor signal which indicates a physiological parameter of a patient, and a wired data interface, that connects to a data network device. An integrated circuit determines measured values of the physiological parameter based on the sensor signal, to provide an alarm limit value, to establish a presence of an alarm event as a function of a comparison of the measured values and the at least one alarm limit value, as well as to provide data elements, which indicate the measured values and the presence of the alarm event in the event of an alarm, via the data interface. A data network device includes a data connection interface for a data interface of the extension cable. A display interface provides a display signal, which indicates the measured values and the alarm limits.

Medical devices including optical connector cable assemblies are disclosed. An optical connector cable assembly may include an optical connector cable having a first optical fiber extending therefrom. The optical connector cable may include a distal connector configured to connect to a guidewire. The distal connector may include an inner housing and a guidewire locking mechanism. The distal connector may also include an actuator. Actuation of the actuator may move the inner housing from a first position to a second position. When the inner housing is in the first position the guidewire locking mechanism is configured to secure the guidewire and the guidewire is rotatable with respect to the optical connector cable. When the inner housing is in the second position the guidewire locking mechanism is in an open state for receiving or removing the guidewire.

A retractor has an oximeter sensor at its tip, which allows measuring of oxygen saturation of a tissue being retracted by the retractor. The tip includes one or more openings for at least one source and detector. A specific implementation is a spinal nerve root retractor with an oximeter sensor.