US 12,178,548 B2 · System and method for laser based internal analysis of gases in a body of a human

Abstract

A device, system and method for measuring free gas in a cavity of a subject. The device, system and method include a light source for emitting light with a wavelength associated with an absorption band of the free gas, an optical fibre connected to the light source and adapted to be inserted using an introducing member for internal illumination, and a detector adapted to be positioned on a skin surface for detecting light transmitted through the tissue. The device, system and method further includes a control unit for evaluating the detected transmitted light for determining the free gas, or a distribution of the free gas, or concentration of the free gas.

Claims13

Dependent claims

A system for determining a lung function of a subject, the system comprising:

a light source configured for externally emitting light with a wavelength into the subject at more than one location and wherein the light source comprises a diffusor, and wherein the wavelength is associated with an absorption band of a free gas in a lung of the subject;
a plurality of detector units adapted to be positioned on a skin surface for detecting light transmitted through tissue and a cavity of the lung;
and
a control unit for evaluating the detected light for determining functioning of the lung of the subject.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

18/224,882Filed 21 Jul 2023 · continuation

Priority

SE 1500335-317 Aug 2015

Published

US 2023/0380693 A130 Nov 2023

Granted

31 Dec 2024

Term ends

Not estimatedThe source records don’t support an estimate.

Classification26 codes

A61B 5/0084
Adapted for particular medical purposes: for introduction into the body, e.g. by catheters
A61B 1/00013
Characterised by signal transmission: using optical means
A61B 1/00165
Optical arrangements: with light-conductive means, e.g. fibre optics
A61B 1/063
With illuminating arrangements: for monochromatic or narrow-band illumination

Family

PCT/EP2016/069549Parent of this continuation · filed 17 Aug 2016

US 2023/0380693 A1Pre-grant publication · published 30 Nov 2023

Application15/752,823Parent of this continuation

US 11,744,467 B2Parent of this continuation

US 2018/0235475 A1Published application

US 12,178,548 B2This patent

From the US filing history. Foreign family members aren’t listed.

System and method for laser based internal analysis of gases in a body of a human

Life of this patent

System and method for laser based internal analysis of gases in a body of a human

Life of this patent

Abstract

Claims13