9 results about "Breath testing" patented technology

The present invention provides an improved breath analyzer and breath test method to determine the presence of disease in humans, including but not limited to, the bacterium H. pylori in a subjects digestive tract. In certain embodiments, the present invention provides a universal breath testing platform and methods of testing for diseases of the gastrointestinal tract, the liver, the kidneys, and the lungs, along with testing for cancer, infections, and metabolic diseases.

The technology described herein relates to methods and systems of detecting surrogate circumvention events based on a data-driven process. Common methods of circumvention include having a sober individual provide the breath sample or using various mechanical or electronic devices to mimic human breath (“surrogate samples”). In other instances, the assigned offender may drive a different vehicle (“surrogate vehicle”) other than the vehicle with the installed interlock device. The technology described herein records data events associated with breath tests to determine whether a surrogate circumvention event has likely occurred. The data events may include time-series sensor measurements from the BAIID and / or patterns of passed, failed, and skipped breath tests to predict the occurrence of the surrogate circumvention events.

The invention provides an anti-cheating alcohol interlocking detection method and system, and the method comprises the steps: entering a pre-starting locking state in response to a detected driving side vehicle door opening and driver seating event, and prohibiting vehicle starting and power output; after it is detected that the driving side vehicle door is closed, an alcohol detection process is started, a driver is prompted to conduct an expiration test, and first biological characteristic information of the driver is synchronously collected in the expiration test process; acquiring an expiration alcohol detection result, if the detection result is that the expiration alcohol passes, storing the first biological characteristic information, and releasing the prohibition on the starting of the vehicle; in response to the fact that the vehicle is engaged in the driving gear, second biological characteristic information of a driver on the driving position is collected; comparing the second biological characteristic information with the stored first biological characteristic information; if yes, the vehicle is allowed to run normally; and if the comparison result is inconsistent, a safety intervention measure is executed, so that the anti-cheating intrinsic safety of the alcohol lock system is greatly improved.

This invention relates to the field of cancer detection drug technology, specifically to the use of phenyl-β-D-glucuronide in the manufacture of drugs for cancer detection by induced breath testing. Phenyl-β-D-glucuronide is naturally present in living organisms and has been verified in animal experiments to be safe and reliable with no toxic or side effects. Furthermore, it can be decomposed into phenol, which is virtually absent in the body as a specific marker for tumors, thereby avoiding the impact of personal factors on the detection accuracy of breath detection methods.

This invention relates to the field of medical breath testing equipment technology, and provides an integrated valve-pump electronic control structure for a breath testing device. The structure includes a microcontroller unit, a multi-channel valve drive circuit, a pump drive circuit, and a bus interface circuit for connecting pressure sensors and gas sensors, all mounted on the same control board. The microcontroller unit outputs valve control signals and pump control signals, which drive the multi-channel valves and the circulating pump respectively through the valve drive circuit and the pump drive circuit. The bus interface circuit connects to the pressure sensors and gas sensors via a unified communication bus and provides the collected sensor signals to the microcontroller unit. When the system is powered on or reset, the multi-channel valve drive circuit and the pump drive circuit enter a preset default safety state, closing the valves and stopping the circulating pump or entering a safe venting mode, thereby improving the operational safety and reliability of the device under abnormal operating conditions.

An expiratory test device is provided to test for hydrogen sulfide and other parameters in exhaled breath from a patient. In addition to an atmospheric input for receiving atmospheric air, a patient sample input is provided for receiving exhaled breath from a patient. A valve is coupled to the patient sample input and the atmospheric input, and first and second pathways are provided from the valve to a hydrogen sulfide sensor module and a second sensor module.

The invention relates to a portable expiration detection device and method and electronic equipment, and the device comprises a collection part which is used for collecting gas exhaled by a user; the flow guide part is used for being connected with the collection part and switching the corresponding gas channels based on the working mode of the portable expiration detection device so as to control the circulation mode of the gas or the air introduced from the external environment based on the gas channels; the driving part is used for driving gas or air based on the working mode, so that the gas or the air flows along the gas channel based on the circulation mode until the gas or the air is discharged into the external environment; and the detection part is used for analyzing the gas flowing in through the gas channel to obtain an analysis value between the gas and the preset sample gas. Therefore, the technical problems that in the prior art, structures in different working modes are designed in a separated mode, the size is large, portable application is difficult to achieve, an accurate airflow control structure is lacked, and the detection result is affected are solved.

The present invention provides improved breath analyzers and breath testing methods to determine the presence of disease in humans, including but not limited to Helicobacter pylori in the digestive tract of a subject.

The present invention provides a universal breath testing platform and methods of testing for diseases of the gastrointestinal tract, the liver, the kidneys, and the lungs, along with testing for cancer, infections, and metabolic diseases. In certain embodiments, the present invention provides a breath testing platform to predict and monitor athletic performance and health parameters in subjects involved in exercise, gymnastics and sports.