A device provided for monitoring the delivery of fluids through a drip chamber. The device includes an electromagnetic radiation (EMR) source and an EMR detector. A device body is employed to position the source and detector about the drip chamber so that the source and detector define an optical path across the drip chamber. A processor device is employed to detect fluid drops from differences between detector signal values separated by a lag time. The device connects to a monitor which may continuously monitor the detected drips.

Some embodiments have a pump assembly mounted to or supported by a dressing for reduced pressure wound therapy. The dressing can have visual pressure, saturation, and/or temperature sensors to provide a visual indication of the level of pressure, saturation, and/or temperature within the dressing. Additionally, the pump assembly can have a pressure sensor in communication with the flow pathway through the pump, and at least one switch or button supported by the housing, the at least one switch or button being accessible to a user and being in communication with the controller. The pump assembly can have a controller supported within or by the housing, the controller being configured to control an operation of the pump. The pump can be configured to be sterilized following the assembly of the pump such that all of the components of the pump have been sterilized.

A radio frequency (RF) to direct current (DC) converter for an aerosol delivery device is provided. The aerosol delivery device includes a power source, and an antenna configured to receive radio-frequency (RF) energy from an external RF transmitter. The aerosol delivery device also includes a power harvesting circuitry configured to receive radio-frequency RF energy from an external RF transmitter, and harvest power from the RF energy to power or charge at least one electronic component of the aerosol delivery device.

A medical device includes a user interface component and an energy harvesting system coupled to the user interface component. The energy harvesting system energy includes a harvesting component, a power storage device connected to the energy harvesting component and an output is coupled to the user interface and operably connected to the power storage device. A method of using the medical device is also provided.

The present invention is a device that illuminates oxygen tubing and a walker to make it safer in dark conditions. The device includes a motion sensing device for automatically turning on the lights when there is movement of the walker, and a timer for turning off the lights after the walker has remained stationary for a predetermined amount of time. The device automatically turns the lights on when surrounding conditions are dim through the use of a photo sensor. In addition, the device includes a power switch for manually turning the lights on or off.

Furthermore, the device contains a GPS transmitter and a wireless communication device. This allows a patient to obtain help by manually activating a panic switch. A built in temperature sensor will automatically call for help, if the ambient air temperature becomes too hot due to adverse weather, fire, or other conditions.

Inner ear treatment delivery devices and methods are disclosed. The device includes a pressurized container filled with a content, a control mechanism within the pressurized container, a nozzle coupled to the control valve, a microprocessor adapted to operate the control valve, and a power source providing energy to the device. The device administers at least one dose of the content to a patient's inner ear.

In one aspect of the invention, a method of charging a medical device includes receiving radiofrequency signals from a remote machine remote from the medical device via a receiver of the medical device. The method includes converting the radiofrequency signals into electrical energy via a generator of the medical device. The method includes storing the electrical energy in an energy cell of the medical device. The method also includes powering a power consumption component of the medical device by transmitting the energy from the energy cell to the power consumption component.

An inhaler is proposed having an insertable container and a monitoring device for counting uses of the inhaler. The monitoring device is arranged in a detachable housing part or fitted onto a mouthpiece of the inhaler. A supply air current is detected by means of a pressure sensor. A position sensor may further be provided.

An injection device comprising: a housing arranged to contain a liquid medicament or a medicament cartridge; an electrical coil arranged at the housing; a removable cap arranged to be removably engaged with an end of the housing; and a magnet arranged within the removable cap; wherein when the removable cap is disengaged from the housing, the magnet moves with respect to the electrical coil such that electrical voltage is induced in the electrical coil and a current is generated.

An injection device comprising: a housing arranged to contain a liquid medicament or a medicament cartridge; an electrical coil arranged around an inner surface or an outer surface of the housing; an electricity storage apparatus electrically connected to the electrical coil; and a magnet arranged to be movable axially within a defined space with respect to the electrical coil, such that electrical voltage is induced in the electrical coil and a current is generated to charge the electricity storage apparatus.