WO2022026751A1 - Suction device for periglottic suctioning - Google Patents

Suction device for periglottic suctioning Download PDF

Info

Publication number
WO2022026751A1
WO2022026751A1 PCT/US2021/043762 US2021043762W WO2022026751A1 WO 2022026751 A1 WO2022026751 A1 WO 2022026751A1 US 2021043762 W US2021043762 W US 2021043762W WO 2022026751 A1 WO2022026751 A1 WO 2022026751A1
Authority
WO
WIPO (PCT)
Prior art keywords
suction device
hollow section
suction
connector
tip
Prior art date
Application number
PCT/US2021/043762
Other languages
French (fr)
Inventor
Richard R. MCNEER
Original Assignee
University Of Miami
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by University Of Miami filed Critical University Of Miami
Publication of WO2022026751A1 publication Critical patent/WO2022026751A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/84—Drainage tubes; Aspiration tips
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/84—Drainage tubes; Aspiration tips
    • A61M1/87—Details of the aspiration tip, not otherwise provided for
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
    • A61M25/007—Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0074—Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0463—Tracheal tubes combined with suction tubes, catheters or the like; Outside connections
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2210/00—Anatomical parts of the body
    • A61M2210/06—Head
    • A61M2210/0625—Mouth
    • A61M2210/065—Throat; Pharynx

Definitions

  • Figure 1 shows the suction device inserted into the airway of a manikin next to a laryngoscope. Suction tubing is shown connected to and extending downwardly from the suction device.
  • Figure 2 is a detailed view of the tip of the suction device.
  • Figure 3 is a top view of the suction device with an adult tip.
  • Figure 4 is a front view of the suction device.
  • Figure 5 is a side view of the suction device.
  • Figure 6 is a detailed view of an alternative tip.
  • Figure 7 is a perspective view of the suction device with the alternative tip.
  • Figure 8 is a side view of the suction device with the alternative tip arranged for use on a child.
  • Figure 9 is a detailed view of the tip of the suction device arranged for use on a child.
  • Figure 10 is a side view of the suction device arranged for use on a child.
  • Figure 11 is a front view of the suction device arranged for use on a child.
  • Figure 12 is a further side view of the suction device arranged for use on a child.
  • Figure 13 is a detailed view of the alternative tip of the suction device arranged for use on a child.
  • Figure 14 is a further view of the suction device arranged for use on a child and having the alternative tip.
  • Figure 15 is a front view of the suction device arranged for use on an infant and having the alternative tip.
  • Figure 16 is a detailed view of the tip of the suction device arranged for use on an infant.
  • Figure 17 is a side view of the suction device arranged for use on an infant.
  • Figure 18 is a front of the suction device arranged for use on an infant.
  • Figure 19 is a full view of the suction device arranged for use on an infant.
  • Figure 20 is a detailed view of the suction device arranged for use on an infant and having the alternative tip.
  • Figure 21 is a side view of the suction device arranged for use on an infant.
  • Embodiments of the suction device overcome these drawbacks and facilitate periglottic suctioning near the vocal cords (glottis opening) during, for example, laryngoscopy and endotracheal tube intubation.
  • the shape of the current suction device facilitates placement and maintenance of tip position in the oropharynx in four important ways:
  • the portion inserted into the mouth is shaped to match the contours of patient anatomy pertaining to the left side (or the right side) of the mouth and oropharynx (the intended route of insertion).
  • the suction device possesses a special grip feature oriented such that the person holding and controlling the suction device gets feedback (positional awareness) of where the suction’s tip is in space and in relation to the patient’s airway.
  • the portion of the suction device that connects with the tubing applying suction from a wall source is oriented down, perpendicular to the floor, so as to keep wall suction tubing out of the way of the laryngoscopist. This design feature also helps stabilize the position of the suction device once inserted in place.
  • the tip of the suction device can be designed to be more efficient for suctioning gas/aerosol.
  • a bulbous tip with openings (suction inlets) arranged around its periphery can be used.
  • the suction device can suction any fluid (blood, gastric contents, secretions, and aerosol), however, it is specialized to suction aerosol that is generated by the pulmonary system and which emanates from the vocal cords (glottis opening) during laryngoscopy. Aerosol contains viral particles and can remain in suspension for 15 minutes and is considered a mechanism for spread of viral and bacterial infection.
  • the catheter suctions through multiple orifices near the tip, oriented toward the glottic opening to maximize evacuation of aerosol.
  • Figure 1 shows the suction device inserted into the airway of a manikin next to a laryngoscope. Suction tubing is shown connected to and extending downwardly from the suction device.
  • Figures 2-21 show three versions of the suction device sized for an adult, a 5-10 year old child and an infant.
  • the three versions have shapes to match age-related anatomical differences.
  • the versions are also shown with one tip design more like in the original Yankauer and an alternative tip designed to be more efficient for gas/aerosol.
  • a suction device for periglottic suctioning near the glottis opening can include a connector for coupling with a vacuum source.
  • a first hollow section in fluid communication with the connector extends generally perpendicularly from the connector.
  • a handle extends from proximate the junction of the connector and the first section in a direction away from the connector.
  • a second hollow section extends from an end of the first hollow section opposite the connector and is in fluid communication with the first hollow section.
  • the second hollow section has a tip end distal from the first hollow section. The tip has a plurality of openings.

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hematology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pulmonology (AREA)
  • Biophysics (AREA)
  • Surgery (AREA)
  • Vascular Medicine (AREA)
  • External Artificial Organs (AREA)

Abstract

A novel suction device facilitates periglottic suctioning near the vocal cords (glottis opening) during, for example, laryngoscopy and endotracheal tube intubation. Compared to the existing suction devices (e.g., Yankauer and suction catheters), the shape of the current suction device facilitates placement and maintenance of tip position in the oropharynx. The suction device can suction any fluid (blood, gastric contents, secretions, and aerosol), however, it is specialized to suction aerosol that is generated by the pulmonary system and which emanates from the vocal cords (glottis opening) during laryngoscopy. The catheter suctions through multiple orifices near the tip, oriented toward the glottic opening to maximize evacuation of aerosol.

Description

SUCTION DEVICE FOR PERIGLOTTIC SUCTIONING
I. Introduction
[0001] Intubation of patients is considered a risk for spread of infection because aerosol is generated and emanates from the vocal cords during the procedure. We have evidence using smoke as a proxy that suctioning near the vocal cords during laryngoscopy can safely evacuate aerosol when the standard Yankauer suction device is used. However, the Yankauer design is over 100 years old and gets in the way when performing intubation.
II. Brief Description of the Drawings
[0002] Figure 1 shows the suction device inserted into the airway of a manikin next to a laryngoscope. Suction tubing is shown connected to and extending downwardly from the suction device.
[0003] Figure 2 is a detailed view of the tip of the suction device.
[0004] Figure 3 is a top view of the suction device with an adult tip.
[0005] Figure 4 is a front view of the suction device.
[0006] Figure 5 is a side view of the suction device.
[0007] Figure 6 is a detailed view of an alternative tip.
[0008] Figure 7 is a perspective view of the suction device with the alternative tip.
[0009] Figure 8 is a side view of the suction device with the alternative tip arranged for use on a child.
[0010] Figure 9 is a detailed view of the tip of the suction device arranged for use on a child.
[0011] Figure 10 is a side view of the suction device arranged for use on a child.
[0012] Figure 11 is a front view of the suction device arranged for use on a child.
[0013] Figure 12 is a further side view of the suction device arranged for use on a child. [0014] Figure 13 is a detailed view of the alternative tip of the suction device arranged for use on a child.
[0015] Figure 14 is a further view of the suction device arranged for use on a child and having the alternative tip.
[0016] Figure 15 is a front view of the suction device arranged for use on an infant and having the alternative tip.
[0017] Figure 16 is a detailed view of the tip of the suction device arranged for use on an infant.
[0018] Figure 17 is a side view of the suction device arranged for use on an infant.
[0019] Figure 18 is a front of the suction device arranged for use on an infant.
[0020] Figure 19 is a full view of the suction device arranged for use on an infant.
[0021] Figure 20 is a detailed view of the suction device arranged for use on an infant and having the alternative tip.
[0022] Figure 21 is a side view of the suction device arranged for use on an infant.
III. Description
[0023] A novel suction device is described with reference to the drawings. Embodiments of the suction device overcome these drawbacks and facilitate periglottic suctioning near the vocal cords (glottis opening) during, for example, laryngoscopy and endotracheal tube intubation. Compared to the existing suction devices (e.g., Yankauer and suction catheters), the shape of the current suction device facilitates placement and maintenance of tip position in the oropharynx in four important ways:
[0024] 1. The portion inserted into the mouth is shaped to match the contours of patient anatomy pertaining to the left side (or the right side) of the mouth and oropharynx (the intended route of insertion).
[0025] 2. The portion remaining outside of the patient’s mouth is diverted away from the patient’s midline so as not to encroach on space used by the left hand of the laryngoscopist who is performing the intubation. [0026] 3. The suction device possesses a special grip feature oriented such that the person holding and controlling the suction device gets feedback (positional awareness) of where the suction’s tip is in space and in relation to the patient’s airway.
[0027] 4. The portion of the suction device that connects with the tubing applying suction from a wall source, is oriented down, perpendicular to the floor, so as to keep wall suction tubing out of the way of the laryngoscopist. This design feature also helps stabilize the position of the suction device once inserted in place.
[0028] 5. The tip of the suction device can be designed to be more efficient for suctioning gas/aerosol. For example, a bulbous tip with openings (suction inlets) arranged around its periphery can be used.
[0029] The suction device can suction any fluid (blood, gastric contents, secretions, and aerosol), however, it is specialized to suction aerosol that is generated by the pulmonary system and which emanates from the vocal cords (glottis opening) during laryngoscopy. Aerosol contains viral particles and can remain in suspension for 15 minutes and is considered a mechanism for spread of viral and bacterial infection. The catheter suctions through multiple orifices near the tip, oriented toward the glottic opening to maximize evacuation of aerosol.
[0030] Figure 1 shows the suction device inserted into the airway of a manikin next to a laryngoscope. Suction tubing is shown connected to and extending downwardly from the suction device.
[0031] Figures 2-21 show three versions of the suction device sized for an adult, a 5-10 year old child and an infant. The three versions have shapes to match age-related anatomical differences. The versions are also shown with one tip design more like in the original Yankauer and an alternative tip designed to be more efficient for gas/aerosol.
[0032] As can be seen in the figures, a suction device for periglottic suctioning near the glottis opening can include a connector for coupling with a vacuum source. A first hollow section in fluid communication with the connector extends generally perpendicularly from the connector. A handle extends from proximate the junction of the connector and the first section in a direction away from the connector. A second hollow section extends from an end of the first hollow section opposite the connector and is in fluid communication with the first hollow section. The second hollow section has a tip end distal from the first hollow section. The tip has a plurality of openings.

Claims

1. A suction device for periglottic suctioning near the glottis opening, the suction device comprising: a connector at a first end; a first hollow section in fluid communication with the connector and extending generally perpendicularly from the connector; a handle extending from proximate a junction of the connector and the first section in a direction opposite from the connector; and a second hollow section extending from an end of the first hollow section opposite the connector and in fluid communication with the first hollow section, the second hollow section having a tip end distal from the first hollow section, the tip having a plurality of openings.
2. The suction device of claim 1 wherein the second hollow section is shaped to match the contours of patient anatomy pertaining to a side of the mouth and oropharynx.
3. The suction device of claim 1 wherein the first hollow section extends from the second hollow section such that it is diverted away from the patient’s midline when the second hollow section is inserted into a patient’s airway.
4. The suction device of claim 1 wherein the handle is oriented relative to the second hollow section to provide positional awareness of where the tip end is in space and in relation to the patient’s airway.
5. The suction device of claim 1 wherein the tip end is bulbous and the plurality of openings are arranged around its outer periphery.
PCT/US2021/043762 2020-07-29 2021-07-29 Suction device for periglottic suctioning WO2022026751A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202063058251P 2020-07-29 2020-07-29
US63/058,251 2020-07-29

Publications (1)

Publication Number Publication Date
WO2022026751A1 true WO2022026751A1 (en) 2022-02-03

Family

ID=80036816

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2021/043762 WO2022026751A1 (en) 2020-07-29 2021-07-29 Suction device for periglottic suctioning

Country Status (1)

Country Link
WO (1) WO2022026751A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4126127A (en) * 1976-09-27 1978-11-21 May Laurence M Suctioning/oxygenating laryngoscope blade
US20030168059A1 (en) * 1997-12-01 2003-09-11 Pacey John A. Intubation instrument
WO2008063179A1 (en) * 2006-11-22 2008-05-29 Benechill, Inc. Methods and devices for non-invasive cerebral and systemic cooling
WO2017208198A2 (en) * 2016-06-01 2017-12-07 Neurosave, Inc. Non-invasive, single use system and methods for selective brain cooling

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4126127A (en) * 1976-09-27 1978-11-21 May Laurence M Suctioning/oxygenating laryngoscope blade
US20030168059A1 (en) * 1997-12-01 2003-09-11 Pacey John A. Intubation instrument
WO2008063179A1 (en) * 2006-11-22 2008-05-29 Benechill, Inc. Methods and devices for non-invasive cerebral and systemic cooling
WO2017208198A2 (en) * 2016-06-01 2017-12-07 Neurosave, Inc. Non-invasive, single use system and methods for selective brain cooling

Similar Documents

Publication Publication Date Title
US11027084B2 (en) Patient ventilating and aspirating system
US4699138A (en) Endotracheal intubation suction device
JP4889908B2 (en) Universal breathing apparatus coupler
US7258120B2 (en) Endotracheal tube apparatus and method for using the same to reduce the risk of infections
US5509408A (en) Neonatal resuscitation device
US4915691A (en) Aspirator
US4787894A (en) Meconium aspiration device
US10549055B2 (en) Medical apparatus with hypopharyngeal suctioning capability
US20030037789A1 (en) Tracheostomy tube apparatus for noninvasive suctioning
CN101970036B (en) Method and device for removing fluid material from the airway above an endotracheal tube cuff
JP2016527059A (en) Respiratory therapy condensation adapter
EP3049124B1 (en) Medical apparatus with hypopharyngeal suctioning capability
US20200147330A1 (en) Closed automated suction device and method
WO2022026751A1 (en) Suction device for periglottic suctioning
CN111587134A (en) Medical device with laryngopharynx suction capability
CN217938887U (en) Closed visual sputum suction tube
CN110960735A (en) Sputum suction tube and visual sputum suction device
CN216963241U (en) Cardiopulmonary resuscitation trachea cannula and breathing machine
CN217119073U (en) Multifunctional nasopharynx air duct
CN212439657U (en) Oxygen mask capable of inserting tube
CN215608061U (en) Sputum suction tube suitable for tracheotomy infant patient
CN213823016U (en) Disposable medical laryngeal mask
CN213285049U (en) Oropharynx air duct capable of sucking and supplying oxygen
CN208511669U (en) A kind of tracheal catheter of sustainable airway suction
CN204864445U (en) Novel trachea cannula device

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21848945

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21848945

Country of ref document: EP

Kind code of ref document: A1