A therapeutic bracelet includes a strip of elastomeric material that defines an interior surface, an exterior surface, and a plurality of finger holes extending through the strip. The strip of elastomeric material is configured to be positioned over an operative hand of a user and to be worn around a wrist of the user. Upon periodic removal of the therapeutic bracelet from the wrist, the user inserts one or more digits in the finger holes from the interior surface and stretches the therapeutic bracelet with a thumb of the operative hand or with an opposite hand. A method of using the therapeutic bracelet to alternately strengthen and stretch the operative hand is also provided. The bracelet may also be used for supporting the wrist in an ergonomically correct position; and, when turned inside out, for massaging sore or injured muscles.

A guide system is provided that uses a plurality of sensors to identify and determine a clear path for an ambulatory vision impaired person. The system includes one or more wheels that rotate to propel the system, a platform supported by the one or more wheels and housing a processor, a rigid harness with a haptic feedback grip that is positioned to be grasped by an operator, and one or more sensors configured to sense information about the environment. In operation, the processor analyzes information sensed by the sensors to identify object in the path of the guide system and sends messages to the operator to allow the operator to avoid the identified objects. The messages may be sent to the operator via the haptic feedback grip or audibly via a speaker or via a wireless connection to a haptic or audio device being worn by the operator.

A handheld device for applying mechanical vibration to a body portion of an individual to treat a dry eye condition of the individual, includes: a housing; a member having a first portion accommodated in the housing, and a second portion that is moveable relative to the housing, wherein the second portion is for placement outside the individual, and is configured to oscillate to apply the mechanical vibration to the body portion, the member having an elongated configuration; and a motor in the housing, the motor configured to oscillate the member at an oscillation frequency sufficient to induce tear production when the second portion of the member is applied towards a surface of the body portion.

A handheld device for applying mechanical vibration to a body portion of an individual to treat a dry eye condition of the individual, includes: a housing; a member having a first portion accommodated in the housing, and a second portion that is moveable relative to the housing, wherein the second portion is for placement outside the individual, and is configured to oscillate to apply the mechanical vibration to the body portion; and a motor in the housing, the motor configured to cause the member to undergo bending action in a reciprocating manner to oscillate the second portion of the member at an oscillation frequency sufficient to induce tear production when the second portion of the member is applied towards a surface of the body portion.

A method to treat a dry eye condition of an individual, includes: receiving a switch signal generated based on a manipulation of a control switch at a handheld device; and activating a motor in response to the switch signal to oscillate a member at an oscillation frequency, the member having an elongated configuration, and having a portion for placement outside the individual; wherein the oscillation frequency is sufficient to induce tear production when the portion of the member is applied towards a surface of a body portion of the individual.

A handheld device for applying mechanical vibration to a body portion of an individual to treat a condition of the individual, includes: a housing; a member having a portion that is moveable relative to the housing, wherein the portion of the member is configured to oscillate to apply the mechanical vibration to the body portion, the member having an elongated configuration; and a motor having a weight that is supported by the member.

A handheld device for applying mechanical vibration to a body portion of an individual to treat a condition of the individual, includes: a housing; a cantilever beam having a first portion accommodated in the housing, and a second portion that is moveable relative to the housing, wherein the second portion is configured to apply the mechanical vibration to the body portion; and a motor in the housing, the motor configured to oscillate the second portion of the cantilever beam at an oscillation frequency.

A frequency detector includes an oscillation related information output portion to which moving body position related information and a correction parameter are input, and which outputs a frequency adjustment parameter and estimated moving body position related information; a frequency estimating portion to which the frequency adjustment parameter is input, and which outputs an estimated frequency; and an adjusting portion to which the moving body position related information, the estimated moving body position related information, and the estimated frequency are input, and which outputs the correction parameter.

An example of a system for providing emergency care to a patient includes an automated chest compression device configured to engage the patient at the patient's sternum to provide multiple chest compression cycles to the patient's sternum, an automated mechanical ventilation device to induce negative pressure ventilation, and a controller operably coupled to the automated chest compression device and the automated mechanical ventilation device and including one or more processors configured to control the automated chest compression device to cyclically perform chest compressions, and control the automated mechanical ventilation device to cyclically induce the negative pressure ventilation out-of-phase with the chest compressions such that the automated mechanical ventilation device cyclically induces the negative pressure ventilation prior to each compression of the patient's sternum.

Technologies are disclosed herein for a low impedance detection system. The detection system includes an electrical insulation and an impedance measurement device. The impedance measurement device can be used to test the impedance of the system when the barrier is placed between the user of the barrier and a source of electrical power. In a defibrillation system, a rescuer can place the barrier over the patient. An electrical power source can deliver electrical shocks to the patient. The impedance measurement device can monitor impedances of the system across various frequencies to detect electrical conditions that might be harmful to the rescuer.