WO2019079872A1 - Laringoscópio mecânico com mecanismo automático ou manual de alavancas para facilitação da intubação traqueal - Google Patents
Laringoscópio mecânico com mecanismo automático ou manual de alavancas para facilitação da intubação traquealInfo
- Publication number
- WO2019079872A1 WO2019079872A1 PCT/BR2018/050379 BR2018050379W WO2019079872A1 WO 2019079872 A1 WO2019079872 A1 WO 2019079872A1 BR 2018050379 W BR2018050379 W BR 2018050379W WO 2019079872 A1 WO2019079872 A1 WO 2019079872A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- laryngoscope
- blade
- lever
- manual
- mechanical
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00071—Insertion part of the endoscope body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00002—Operational features of endoscopes
- A61B1/00025—Operational features of endoscopes characterised by power management
- A61B1/00027—Operational features of endoscopes characterised by power management characterised by power supply
- A61B1/00032—Operational features of endoscopes characterised by power management characterised by power supply internally powered
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00112—Connection or coupling means
- A61B1/00121—Connectors, fasteners and adapters, e.g. on the endoscope handle
- A61B1/00124—Connectors, fasteners and adapters, e.g. on the endoscope handle electrical, e.g. electrical plug-and-socket connection
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00112—Connection or coupling means
- A61B1/00121—Connectors, fasteners and adapters, e.g. on the endoscope handle
- A61B1/00126—Connectors, fasteners and adapters, e.g. on the endoscope handle optical, e.g. for light supply cables
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00147—Holding or positioning arrangements
- A61B1/0016—Holding or positioning arrangements using motor drive units
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/005—Flexible endoscopes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/005—Flexible endoscopes
- A61B1/0051—Flexible endoscopes with controlled bending of insertion part
- A61B1/0055—Constructional details of insertion parts, e.g. vertebral elements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
- A61B1/05—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances characterised by the image sensor, e.g. camera, being in the distal end portion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
- A61B1/0661—Endoscope light sources
- A61B1/0676—Endoscope light sources at distal tip of an endoscope
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/267—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the respiratory tract, e.g. laryngoscopes, bronchoscopes
-
- 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
- A61M16/0402—Special features for tracheal tubes not otherwise provided for
- A61M16/0418—Special features for tracheal tubes not otherwise provided for with integrated means for changing the degree of curvature, e.g. for easy intubation
Definitions
- the invention relates to a laryngoscope equipped with a lever system which, when actuated, will facilitate the opening of the oral cavity and visualization of the glottis, and consequently tracheal intubation, reducing totally or partially the force to be exerted by the performer, so that said levers will be actuated manually or, by means of an electronic-electric drive mechanism.
- Some laryngoscope models are known in the art.
- video-laryngoscope models are also known in the case of the present invention and in order to facilitate the visualization of the epiglottis, a path has been developed by the mechanical laryngoscope with automatic actuation that allows the use of optical cables with a coupled video system, models already market were selected.
- the endoscopic camera will be covered by a surgical tube made of translucent material with an inner diameter of at least 5.5 mm and an outer diameter of at most 10 mm, that is, the solution will include commercial systems in which the endoscopic camera has a diameter of between 3.3mm and 6mm, as examples of compatible systems we can mention, Clarus pocket scope, Teslong nts 150 RS and Giraffecam 1 .0 soft shortfocus , however, there is no knowledge of laryngoscopes with actuating mechanisms by means of lever for activation and other levers, for the support of the palate and for the unblocking of the epiglottis.
- REPLACEMENT SHEETS (RULE 26) palate on r the blade by a plurality of arms being pushed against the roof of the mouth, opening the airway to facilitate visualization of the vocal cords.
- the laryngoscope of this invention has the differential of having two levers, acting inside the mouth in a counterposed direction, imitating the opening movement of a clamp, in addition to that all transmission mechanism is located inside the blade, being able to be actuated, both manually and automatically by means of electro-electronics.
- McCoy's laryngoscope based on the standard Macintosh blade. Its main feature is the hinged tip, which is handled by a lever on the back of the instrument. With this, the McCoy provides a facilitation in the separation of the epiglotto to visualize the glottis.
- the MacCoy laryngoscope only moves the tip of the blade, unlike the laryngoscope of the present invention, which has that longer articulated part which, when driven, distances the epiglottis and other structures, such as the base of the tongue and anterior wall of the pharynx; resulting in greater utility and ease of handling.
- the main sequelae associated with inadequate handling of the difficult airway are: Death, brain injury, cardiopulmonary arrest, unnecessary tracheostomy, airway or tooth trauma.
- REPLACEMENT SHEETS (RULE 26)
- the difficult airway is defined as a clinical situation where a trained physician has difficulty intubating the patient, maintaining manual ventilation, or both.
- Difficult laryngoscopy is the non-visualization of any part of the vocal cords with the use of conventional laryngoscopy.
- the purpose of laryngoscopy is to expose the glottis in such a way that tracheal intubation is possible.
- the view is expected to be a cylindrical structure with a central, inverted "V" -shaped slit, the edges of which are the vocal cords through which the larynx is visualized.
- this image is restricted according to which laryngeal structures may be observed or not during a laryngoscopy.
- Cormarck and Lehane proposed a practical classification in 1984.
- Figure 1 shows a side view of the hand-operated laryngoscope having a side opening, so that it is possible to visualize the drive mechanism, the palatal support lever and the distal blade, which will act as levers .
- Figure 2 shows the same view of Figure 1, however, with the hand-operated laryngoscope facing the opposite side.
- Figure 3 shows a perspective view of the hand-operated laryngoscope shown in Figure 1.
- Figure 3a shows a perspective view of the blade coupled to the upper lid of the laryngoscope, with two different sizes and curvatures.
- Figure 4 shows the same view of Figure 1, however, with the laryngoscope lever system engaged, and the drive lever locked to the cable.
- Figure 5 shows a front oblique perspective view of the self-actuated laryngoscope by electro-electronic mechanism.
- Figure 6 shows a side cross-sectional view of the self-actuating laryngoscope.
- Figure 7 shows a rear oblique perspective view of the hand-operated laryngoscope.
- Figure 7a shows a rear oblique perspective view of the self-actuating laryngoscope.
- Figure 8 shows a side view of the hand-operated laryngoscope handle and cable assembly.
- Figure 8a shows a cross-section of the drive mechanism, in order to visualize the torsional spring of said lever.
- Figure 9 illustrates the driving, during operation, of said hand-operated laryngoscope drive levers and drive shafts.
- Figure 10 illustrates the steering, during operation, of said levers and drive shafts of the self-actuating laryngoscope.
- Figure 11 shows a side view of the blades, opposed to that of the drive mechanism, and only a part of the automatic drive mechanism.
- Figure 12 shows a perspective view of the servo motor and its housing, together with the blade of the servo (18) performing the rotational movements that will move the levers.
- Figure 13 shows the movement during the operation of the automatic drive mechanism.
- Figure 14 shows the automatic drive mechanism assembly with the pallet support and the servo motor.
- Figure 15 shows the entire automatic trigger mechanism, together with the palatal support.
- Figure 15a shows an "exploded" image of the central part of the drive mechanism.
- Figure 16 shows the proximal blade in section, with the view of the channel where it passes the wires for electrical conduction of the lighting system.
- Figure 17 shows the laryngoscope cable detached from the lower (Ti) and top (Ts) lid, which interconnect the internal battery (s).
- Figure 18 shows the manual laryngoscope cable detached from the covering silicone grip.
- Figure 19 shows the lateral cut laryngoscope, visualizing the electrical part of the cable and the proximal blade, responsible for promoting illumination in the distal part of the proximal blade.
- Figure 20 shows how a vision is expected when the purpose of laryngoscopy is to expose the glottis to allow tracheal intubation, where there is a cylindrical structure with a central inverted "V" shape, whose edges are the vocal cords through which the larynx is visualized.
- Figure 21 shows the classification proposed by Cormarck and Lehane with the laryngeal structures that can be observed, generally, during a laryngoscopy.
- the present invention takes care of a laryngoscope with manually or automatically operated levers, the automatic one having an electronic-electric drive system. Both the manual and the automatic will provide a reduction in the difficulty of tracheal intubation, especially of the patients considered as "difficult intubation", reducing the damage caused by the difficulty of intubation, besides providing less effort on the part of the performer.
- the hand-operated laryngoscope (1) has a proximal blade (5) and a distal blade (6), the lower drive shaft (10), the upper drive shaft (9), and the drive lever (8) in a diagonal position relative to the proximal blade (5), said lever being attached to the palatal support (3) by means of a hinge.
- the manual laryngoscope (1) further has a drive lever (4) and a latch (7) which can be positioned in several different positions, adapting to different patients and situations.
- the cable 12 is provided with an internal compartment for housing two alkaline batteries, type C2, for supplying the lighting system composed of an LED lamp 25, the electric conduction being carried out by a system of internal and external wires 21 and 24) from the cable to the end of the proximal blade. It also has a silicone grip (12a) used to cover said cable (12), thus improving ergonomics.
- the mechanism of operation of the manual laryngoscope 1 is by the compression of the lever 4 towards the cable 12, which, being connected to the base of the proximal blade 5 and, has a ball joint 4a fixed to the axes of (9 and 10), provide for the back and forth movement of these axes (9 and 10) by pushing the palatal support lever (8) upwards against the palatal support (3) in the upper the mouth (hard palate), as well as the movement in the opposite direction of the other intraoral lever formed by the distal blade (6), as seen in Figures 4, 8 and 9.
- Said ball (4a) is fixed with a torsional spring (MT) as seen in Figure 8a, the function of which is to return the lever to the rest position when not being depressed.
- the automatic laryngoscope (2) is composed of a servo motor (20) which is housed in a compartment (19) arranged to interconnect the cable
- REPLACEMENT SHEETS (RULE 26) (10) in order to push the upper part of the distal blade (6), thereby opening the patient's glottis and pushing the base of the tongue, as shown in FIGS. movements shown in Figures 10, 13, 14 and 15.
- the servo motor (20) has three electrical terminals, two dedicated to its power and the third responsible for receiving its control signal.
- a microcontroller-based printed circuit board was designed to control the servo motor.
- the lighting system consists of a rechargeable battery
- the laryngoscope with levers for facilitating tracheal intubation presents an automatic version (figure 5) and manual (figure 1), so that the automatic version contains camera support (23) for use or otherwise of video system .
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Molecular Biology (AREA)
- Radiology & Medical Imaging (AREA)
- Pathology (AREA)
- Optics & Photonics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Physics & Mathematics (AREA)
- Pulmonology (AREA)
- Otolaryngology (AREA)
- Physiology (AREA)
- Emergency Medicine (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Endoscopes (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA3079915A CA3079915A1 (en) | 2017-10-23 | 2018-10-16 | Mechanical laryngoscope with an automatic or manual lever mechanism to facilitate tracheal intubation |
RU2020116433A RU2020116433A (ru) | 2017-10-23 | 2018-10-16 | Механический ларингоскоп с автоматическим или ручным механизмом с рычагами для облегчения интубации трахеи |
EP18870582.6A EP3705026A4 (en) | 2017-10-23 | 2018-10-16 | MECHANICAL LARYNGOSCOPE WITH AN AUTOMATIC OR MANUAL LEVER MECHANISM FOR TRACHEAL INTUBATION |
US16/758,455 US20200253466A1 (en) | 2017-10-23 | 2018-10-16 | Mechanical laryngoscope with an automatic or manual lever mechanism to facilitate tracheal intubation |
KR1020207014344A KR20200077535A (ko) | 2017-10-23 | 2018-10-16 | 기관 삽관을 용이하게 하기 위한 자동 또는 수동 레버 메커니즘을 갖는 기계식 후두경 |
JP2020543657A JP2021502872A (ja) | 2017-10-23 | 2018-10-16 | 気管挿管を容易にするレバーの自動または手動機構を備えた機械的喉頭鏡 |
CN201880068432.2A CN111372505A (zh) | 2017-10-23 | 2018-10-16 | 带有自动或手动杠杆的机械喉镜系统,可用于辅助气管插管 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR102017022831-2A BR102017022831A2 (pt) | 2017-10-23 | 2017-10-23 | Laringoscópio mecânico com mecanismo automático ou manual de alavancas para facilitação da intubação traqueal |
BRBR1020170228312 | 2017-10-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2019079872A1 true WO2019079872A1 (pt) | 2019-05-02 |
Family
ID=66246095
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/BR2018/050379 WO2019079872A1 (pt) | 2017-10-23 | 2018-10-16 | Laringoscópio mecânico com mecanismo automático ou manual de alavancas para facilitação da intubação traqueal |
Country Status (9)
Country | Link |
---|---|
US (1) | US20200253466A1 (pt) |
EP (1) | EP3705026A4 (pt) |
JP (1) | JP2021502872A (pt) |
KR (1) | KR20200077535A (pt) |
CN (1) | CN111372505A (pt) |
BR (1) | BR102017022831A2 (pt) |
CA (1) | CA3079915A1 (pt) |
RU (1) | RU2020116433A (pt) |
WO (1) | WO2019079872A1 (pt) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102492718B1 (ko) * | 2021-04-02 | 2023-01-26 | 인제대학교 산학협력단 | 블레이드 각도가 가변되는 비디오 후두경 |
KR102492719B1 (ko) * | 2021-04-13 | 2023-02-02 | 인제대학교 산학협력단 | 블레이드 각도가 가변되는 비디오 후두경 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5498231A (en) * | 1994-03-07 | 1996-03-12 | Franicevic; Klaus | Intubating laryngoscope |
US5938591A (en) * | 1998-06-09 | 1999-08-17 | Minson; Matthew Alan | Self retaining laryngoscope |
US20050054903A1 (en) * | 2003-09-04 | 2005-03-10 | Cantrell Elroy T. | Dual blade laryngoscope with esophageal obturator |
US20100261968A1 (en) * | 2007-06-12 | 2010-10-14 | University Hospitals Of Cleveland | Apparatus and method for airway management |
US8083672B2 (en) * | 2006-10-06 | 2011-12-27 | Matthew Minson | Laryngoscope |
US20130310650A1 (en) * | 2010-06-04 | 2013-11-21 | Paul Christopher Hales | Laryngoscopy |
US20170181614A1 (en) | 2015-12-29 | 2017-06-29 | Lennon Keith Bartozzi | Intubation Device |
WO2017151796A1 (en) * | 2016-03-01 | 2017-09-08 | Inscope Medical Solutions, Inc. | Improved laryngoscope |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0127130D0 (en) * | 2001-11-13 | 2002-01-02 | Mcmorrow Roger | A laryngoscope |
US20160206189A1 (en) * | 2007-06-12 | 2016-07-21 | University Hospitals Of Cleveland | Facilitating tracheal intubation using an articulating airway management apparatus |
US8715172B1 (en) * | 2011-07-11 | 2014-05-06 | Magdy S. Girgis | Double bladed laryngoscope having video camera and liquid crystal display for facilitating intubation procedure |
CN206252488U (zh) * | 2016-07-06 | 2017-06-16 | 中国医学科学院北京协和医院 | 带有声门暴露装置及硬腭支撑装置的气管插管用喉镜片 |
-
2017
- 2017-10-23 BR BR102017022831-2A patent/BR102017022831A2/pt not_active IP Right Cessation
-
2018
- 2018-10-16 JP JP2020543657A patent/JP2021502872A/ja active Pending
- 2018-10-16 CN CN201880068432.2A patent/CN111372505A/zh active Pending
- 2018-10-16 WO PCT/BR2018/050379 patent/WO2019079872A1/pt unknown
- 2018-10-16 EP EP18870582.6A patent/EP3705026A4/en not_active Withdrawn
- 2018-10-16 RU RU2020116433A patent/RU2020116433A/ru unknown
- 2018-10-16 CA CA3079915A patent/CA3079915A1/en not_active Abandoned
- 2018-10-16 US US16/758,455 patent/US20200253466A1/en not_active Abandoned
- 2018-10-16 KR KR1020207014344A patent/KR20200077535A/ko unknown
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5498231A (en) * | 1994-03-07 | 1996-03-12 | Franicevic; Klaus | Intubating laryngoscope |
US5938591A (en) * | 1998-06-09 | 1999-08-17 | Minson; Matthew Alan | Self retaining laryngoscope |
US20050054903A1 (en) * | 2003-09-04 | 2005-03-10 | Cantrell Elroy T. | Dual blade laryngoscope with esophageal obturator |
US8083672B2 (en) * | 2006-10-06 | 2011-12-27 | Matthew Minson | Laryngoscope |
US20100261968A1 (en) * | 2007-06-12 | 2010-10-14 | University Hospitals Of Cleveland | Apparatus and method for airway management |
US20130310650A1 (en) * | 2010-06-04 | 2013-11-21 | Paul Christopher Hales | Laryngoscopy |
US20170181614A1 (en) | 2015-12-29 | 2017-06-29 | Lennon Keith Bartozzi | Intubation Device |
WO2017151796A1 (en) * | 2016-03-01 | 2017-09-08 | Inscope Medical Solutions, Inc. | Improved laryngoscope |
Non-Patent Citations (1)
Title |
---|
See also references of EP3705026A4 |
Also Published As
Publication number | Publication date |
---|---|
US20200253466A1 (en) | 2020-08-13 |
RU2020116433A (ru) | 2021-11-25 |
KR20200077535A (ko) | 2020-06-30 |
CA3079915A1 (en) | 2019-05-02 |
BR102017022831A2 (pt) | 2019-05-07 |
EP3705026A4 (en) | 2021-10-06 |
EP3705026A1 (en) | 2020-09-09 |
JP2021502872A (ja) | 2021-02-04 |
CN111372505A (zh) | 2020-07-03 |
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