Abstract: A portable retracting device for medical tubing management includes a housing. The housing includes a retractable cord disposed within the housing, wherein the retractable cord is configured to extend from a side of the housing. The device includes a first spring clamp configured to attach to clothing of an individual, a second spring clamp configured to clamp to the medical tube having a first diameter at a first location of the first medical tube, and a third spring clamp coupled to an end of the retractable cord configured to clamp the medical tube at a second location of the first medical tube to form a first loop in the first medical tube from the first location of the first medical tube to the second location of the first medical tube.

Abstract: Identifying object characteristic based on a contrast ratio of an amount of light reflected or absorbed by the object. Part of the object is illuminated, where the object is a material that absorbs or reflects light emitted by the light source. An amount of light absorbed/reflected by the object is measured. A contrast ratio of the absorbed/reflected light is determined by comparing an amount of light absorbed/reflected by the object to a default absorption or reflection value to obtain a difference between the amount of light absorbed/reflected by the object and the default absorption/reflection value. A characteristic of the object is determined based on the contrast ratio. The wavelength of the light from the light source can be substantially the same as the wavelength of the energy used to form the object by a welding process that uses energy to join at least two parts together to form the object.

Abstract: Identifying object characteristic based on a contrast ratio of an amount of light reflected or absorbed by the object. Part of the object is illuminated, where the object is a material that absorbs or reflects light emitted by the light source. An amount of light absorbed/reflected by the object is measured. A contrast ratio of the absorbed/reflected light is determined by comparing an amount of light absorbed/reflected by the object to a default absorption or reflection value to obtain a difference between the amount of light absorbed/reflected by the object and the default absorption/reflection value. A characteristic of the object is determined based on the contrast ratio. The wavelength of the light from the light source can be substantially the same as the wavelength of the energy used to form the object by a welding process that uses energy to join at least two parts together to form the object.

Abstract: Systems and apparatuses of operating the same are described. An apparatus that may include a light guide. The light guide may include a body configured to direct at least a portion of light within a defined wavelength spectrum from a first light source toward an object. The body may be formed of a material to provide a threshold contrast ratio between a first portion of the object and a second portion of the object. The body may include a first surface that includes a first cavity formed to receive at least a portion of an incident end the first light source. The body may include a second surface at a distal end from the light source. The second surface may be a peripheral diffusing portion or a peripheral focusing portion.

Abstract: Systems and apparatuses of operating the same are described. An apparatus that may include a light guide. The light guide may include a body configured to direct at least a portion of light within a defined wavelength spectrum from a first light source toward an object. The body may be formed of a material to provide a threshold contrast ratio between a first portion of the object and a second portion of the object. The body may include a first surface that includes a first cavity formed to receive at least a portion of an incident end the first light source. The body may include a second surface at a distal end from the light source. The second surface may be a peripheral diffusing portion or a peripheral focusing portion.