# US 2018/0020949 A1 · Breathing Detection Apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0020949 A1 - Document ID: US20180020949A1 - Status: Published application - Kind: A1 - Application number: 15/694,415 - Filed: 2017-09-01 - Published: 2018-01-25 - Earliest claimed: 2015-03-20 - Assignees: Bohnas Innovations LLC - Applicants: Bohnas Innovations LLC - Inventors: Casey Johnson; Doran Thomas; Greg Bauer - Web page: https://patentgrep.com/patent/US20180020949A1 ## CPC - A61B 5/097: Devices for facilitating collection of breath or for directing breath into or through measuring devices - A61B 5/0836: {Measuring rate of CO2 production} - A61B 5/7405: {using sound} - A61M 16/085: {Gas sampling} - A61M 16/0666: {Nasal cannulas or tubing (devices for improving normal breathing through the nose A61F5/08; nose filters A62B23/06; outside holding devices A61M25/02)} - A61M 16/0672: {Nasal cannula assemblies for oxygen therapy} - A61M 16/161: {with means for measuring the humidity} - A61M 25/02: Holding devices, e.g. on the body - A61M 2016/0413: {with detectors of CO2 in exhaled gases} - A61M 2025/024: {having a clip or clamp system} - A61M 2025/028: {having a mainly rigid support structure} - A61M 2025/0293: {Catheter, guide wire or the like with means for holding, centering, anchoring or frictionally engaging the device within an artificial lumen, e.g. tube} - A61M 2205/0227: Materials having sensing or indicating function, e.g. indicating a pressure increase - A61M 2205/273: preventing reuse, e.g. of disposables - A61M 2205/581: by audible feedback - A61M 2205/587: Lighting arrangements - A61M 2205/588: by olfactory feedback, i.e. smell - A61M 2230/432: partial CO2 pressure (P-CO2) - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} ## Abstract An apparatus including a tubular channel having a pathway extending between a proximal end and a distal end of the tubular channel. The proximal end is configured to connect directly or indirectly to an end tidal CO2 monitor. The distal end has an opening. The apparatus further includes a detection member including a chamber disposed in fluid communication with the pathway of the tubular channel such that gas entering the tubular channel via the opening on the distal end passes into the chamber. A detection element is disposed within the chamber and includes a component that is sensitive to one or more systemic biomarkers such that, upon exposure to a predetermined concentration level of the one or more systemic biomarkers contained in the gas, a state of the detection element experiences a permanent alteration and the detection member indicates that the predetermined concentration level of the one or more systemic biomarkers is present in the gas. ## Claims ### Claim 1 A sampling apparatus, comprising: a sampling tube to sample exhaled breath; a housing into which the sampling tube transmits a sample of the exhaled breath, the housing including a slot disposed into a side of the housing such that when a cannula is laterally inserted into the slot, the cannula extends in a direction parallel to a direction of extension of the sampling tube; and a collar that is connectable to the housing and is configured to be positioned in a connected position or a disconnected position, wherein, when the collar is in the connected position, an external wall of the collar prevents removal of an inserted cannula from the slot, and wherein, when the collar is in the disconnected position, the cannula is insertable and/or removable from the slot. ### Claim 2 (depends on 1) The sampling apparatus according to claim 1, wherein the collar slides over the sampling tube to connect to the housing and engage the connected position. ### Claim 3 (depends on 1) The sampling apparatus according to claim 1, wherein the sampled breath is carried to an end tidal CO2 monitor device after passing through the housing. ### Claim 4 (depends on 1) The sampling apparatus according to claim 1, wherein the housing further includes a detection element that is sensitive to a systemic biomarker such that, upon exposure to a predetermined concentration level of the systemic biomarker contained in the sampled breath, a state of the detection element experiences an alteration, thereby indicating that the predetermined concentration level of the systemic biomarker is present in the sampled breath. ### Claim 5 (depends on 4) The sampling apparatus according to claim 4, wherein the detection element is sensitive to CO2. ### Claim 6 (depends on 1) The sampling apparatus according to claim 1, wherein when the cannula is inserted into the slot and the collar is in the connected position, the collar does not deform a natural shape of the cannula. ### Claim 7 (depends on 1) The sampling apparatus according to claim 1, wherein the collar connects to the housing via a threaded engagement. ### Claim 8 (depends on 1) The sampling apparatus according to claim 1, wherein a direction of extension of the sampling tube is manually manipulable. ### Claim 9 (depends on 1) The sampling apparatus according to claim 1, wherein the slot extends inward into the housing from an outer edge of the housing before curving to extend back toward the outer edge of the housing. ### Claim 10 A sampling system, comprising: a sampling tube to sample exhaled breath; a biomarker detection unit having a housing into which the sampling tube transmits a sample of the exhaled breath, the biomarker detection unit including: a detection element disposed in a first portion of the housing to detect biomarkers in the exhaled breath, the first portion of the housing being formed of a transparent plastic, and a slot disposed into a second portion of the housing that is adjacent to and integral with the first portion of the housing, the slot disposed such that when a cannula is laterally inserted into the slot, the cannula extends in a direction parallel to a direction of extension of the sampling tube; and an obstruction element configured to be positioned in a connected position with the biomarker detection unit or in a disconnected position, wherein, when the obstruction element is in the connected position, the obstruction element structurally prevents removal of an inserted cannula from the slot without compression on the cannula, and wherein, when the obstruction element is in the disconnected position, the cannula is insertable and/or removable from the slot. ### Claim 11 (depends on 10) The system according to claim 10, wherein the detection element is stored within a chamber in the first portion of the housing, the chamber being in fluid communication with the sampling tube. ### Claim 12 (depends on 10) The system according to claim 10, wherein the obstruction element is a collar that engages the housing of the biomarker detection unit. ### Claim 13 (depends on 10) The system according to claim 10, wherein the alteration of the state of the detection element includes a permanent physical appearance alteration. ### Claim 14 (depends on 10) The system according to claim 10, further comprising a tip structure on a distal end of the sampling tube, the tip structure being sized to pass through a hole in a face mask under manual pressure, and the tip structure having a planar rear face with a perimeter sized larger than a largest dimension of the hole in the face mask such that, when the tip structure is inserted into the face mask, the planar rear face abuts an inside surface of the face mask surrounding the hole to prevent the sampling tube from falling out of the face mask. ### Claim 15 (depends on 10) The system according to claim 10, further comprising a tip structure on a distal end of the sampling tube, the tip structure being sized to pass through a port in an adapter for an endotracheal tube under manual pressure, and the tip structure having a planar rear face with a perimeter sized larger than a largest dimension of the port in the adapter for the endotracheal tube such that, when the tip structure is inserted into the port, the planar rear face abuts an inside surface of the port to prevent the sampling tube from falling out of the adapter for the endotracheal tube. ### Claim 16 (depends on 10) The system according to claim 10, wherein the slot divides into two branches that extend away from each other and transverse to the initial trajectory into the housing, each branch curving back to form a hook shape. ### Claim 17 (depends on 16) The system according to claim 16, wherein the obstruction element is configured to prevent removal of the cannula from both branches of the slot simultaneously. ### Claim 18 (depends on 10) The system according to claim 10, further comprising a sampling return line that is in fluid communication with the biomarker detection unit in a collinear alignment with the sampling tube. ### Claim 19 A sampling apparatus to sample exhaled breath from a patient who has a nasal cannula, comprising: a housing including: a chamber having a detection element therein, and a nasal cannula attachment portion connected directly to the chamber; and a sampling tube configured to be in fluid communication with the chamber, wherein the cannula attachment portion is configured to connect to the nasal cannula such that the sampling tube extends in a direction parallel to a direction of extension of the nasal cannula, and wherein at least a distal end of the sampling tube is positionable. ### Claim 20 (depends on 19) The sampling apparatus according to claim 19, wherein the detection element changes color when exposed to end tidal CO2 in the exhaled breath.