CN108245125B - Thin lens video laryngoscope and flexible tracheal catheter - Google Patents
Thin lens video laryngoscope and flexible tracheal catheter Download PDFInfo
- Publication number
- CN108245125B CN108245125B CN201810042247.8A CN201810042247A CN108245125B CN 108245125 B CN108245125 B CN 108245125B CN 201810042247 A CN201810042247 A CN 201810042247A CN 108245125 B CN108245125 B CN 108245125B
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- tracheal catheter
- lens
- tube
- flexible
- channel
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- 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
- A61B1/2676—Bronchoscopes
-
- 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
- A61B1/07—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 using light-conductive means, e.g. optical fibres
-
- 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
Abstract
A thin lens video laryngoscope and a flexible tracheal catheter belong to the technical field of medical instruments and comprise a display screen, a laryngoscope handle and a lens, wherein a light emitter, a camera device, a switch, a battery and a charging interface are arranged in the laryngoscope handle, and the lens is a hollow thin plate bent according to the physiological curvature of the oral cavity, the tongue and the throat; the interior of the lens is sequentially provided with an optical fiber channel, a suction channel and a flexible tracheal catheter channel; the cross section of the flexible tracheal catheter channel is oval, an opening is formed in the outer side wall of the flexible tracheal catheter channel, and a polyester belt is arranged at the opening; an inflatable bag is arranged on the outer surface of the front end of the lens and 1cm away from the front end face, and an inflatable tube I is arranged on the inflatable bag. The invention makes the operation of the trachea cannula simpler and more convenient, and also can make the difficult trachea cannula with the opening degree of about 0.5cm become simple and accurate.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a video laryngoscope.
Background
The video laryngoscope is used for tracheal intubation without excessive back tilting of the head and the neck, the glottis is exposed simply, and the tracheal intubation problem of most difficult airways under general anesthesia is solved. However, the current technology still has the following defects: 1, the used tracheal catheter is a bendable plastic tube, and the caliber of the tracheal catheter is fixed. 2, the lens of the video laryngoscope is provided with a channel for placing the tracheal catheter, the thickness of the lens is larger, and the mouth opening degree must be larger (more than 3 cm) to be placed in the oral cavity. 3, the laryngoscope can expose the glottis easily and clearly, and even if a tube core with an adjustable tip is used, the tracheal catheter cannot be smoothly placed into the glottis due to limited oral space because the curvature of the lens is larger. 4, for a patient with small opening degree, the video laryngoscope cannot be used, the tracheal intubation method (such as transnasal intubation) or the instrument (such as a fiber bronchoscope) with complicated operation steps must be applied to carry out the tracheal intubation, and the tracheal intubation cannot be quickly finished in emergency treatment.
Therefore, there is a need in the art for a new solution to solve this problem.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the thin lens video laryngoscope and the flexible tracheal catheter are provided, so that the tracheal intubation operation is simpler and more convenient, and the difficult airway tracheal intubation with the opening degree of about 0.5cm smaller can be simply and accurately performed.
Thin lens video laryngoscope and flexible endotracheal tube, characterized by: the mirror comprises a display screen, a mirror handle and a mirror piece, wherein a light emitter, a camera device, a switch, a battery and a charging interface are arranged in the mirror handle, the mirror piece is a hollow thin plate bent according to the physiological curvature of the oral cavity, the tongue and the throat, the width of the mirror piece is 1.5cm, and the thickness of the mirror piece is 0.5 cm;
the interior of the lens is sequentially provided with an optical fiber channel, a suction channel and a flexible tracheal catheter channel; the cross section of the flexible tracheal catheter channel is oval, the major axis of the oval is 0.4cm, the minor axis of the oval is 0.2cm, an opening is formed in the outer side wall of the flexible tracheal catheter channel, and a polyester belt is arranged at the opening; an inflatable bag is arranged on the outer surface of the front end of the lens and is 1cm away from the front end face, the length of the inflatable bag is 1cm, the diameter of the cross section of the inflatable bag is 3cm, and an inflatable tube I with the length of 30cm is arranged on the inflatable bag;
the optical fiber is arranged in the optical fiber channel and connected with the endoscope handle, the sputum suction tube is arranged in the suction channel, the tracheal tube is arranged in the flexible tracheal tube channel and is cylindrical, and the tail part of the tracheal tube is provided with an inflation tube II; a cuff with the length of 0.5cm and the cross section diameter of 2.5cm is arranged at a position 2cm away from the front edge outside the front end of the tracheal catheter, a cuff inflation tube is arranged on the cuff, and the length of the cuff inflation tube is greater than that of the tracheal catheter;
the tracheal catheter is placed into a flexible tracheal catheter channel through a tracheal catheter introducer, the tracheal catheter introducer is a flexible steel bar with smooth two ends, fixing holes are formed in the two ends of the flexible steel bar, the length of the steel bar is 40cm, and the diameter of the cross section of the steel bar is 0.05 cm-0.1 cm;
the tracheal catheter is composed of a flexible double-layer plane material and evenly distributed equal-length chain-linked fibers, and the length of the chain-linked fibers is 2 mm.
And the inflation tube I, the inflation tube II and the cuff inflation tube are all provided with inflation valves.
The endotracheal tube length is 30cm, and the front end is provided with the fixed line, and all is provided with the sign line from the front end every centimetre, and the rear end is connected with breathing circuit.
Through the design scheme, the invention can bring the following beneficial effects: the thin lens video laryngoscope and the flexible tracheal catheter enable the tracheal intubation operation to be simpler and more convenient, and enable the difficult airway tracheal intubation with the opening degree of only about 0.5cm to be simple and accurate.
The tracheal catheter channel is reduced, and the lens is thinned, so that the problem of rapid tracheal intubation of the airway, which is difficult to realize minimum opening degree and limited neck movement, is solved, the laryngoscope is convenient to place in the oral cavity, the lens mobility is increased, and the position adjustment of the laryngoscope is facilitated;
the tracheal catheter is made of a flexible, extremely thin and double-layer plane material, so that the volume of the tracheal catheter is extremely reduced in a negative pressure state, and the tracheal catheter is easy to insert;
the fixing holes at the two ends of the endotracheal tube imbedding device are simple and convenient to operate when the endotracheal tube is fixed and embedded; the flexible steel bar is made of steel bars, the flexibility of the steel bar can adapt to the forward movement in a channel with larger curvature, the toughness can ensure that the forward movement direction of the steel bar is fixed after the steel bar leaves the channel, and the tracheal catheter can be effectively controlled to enter a glottis;
the side wall of the flexible tracheal catheter channel is blocked by a polyester band, so that the flexible tracheal catheter channel is easy to install and dismount, and a laryngoscope is convenient to separate from the tracheal catheter;
the lens handle and the lens are flexibly disassembled and assembled, so that the lens is conveniently placed in an oral cavity;
the air bag at the front end of the lens expands the throat space after being inflated, and the visual field is clear;
the suction channel is positioned in the lens, and the problem of rapid and effective sputum suction of the oral cavity under the condition of large curvature is solved.
Drawings
The invention is further described with reference to the following figures and detailed description:
FIG. 1 is a schematic view of the thin lens video laryngoscope and flexible endotracheal tube of the invention.
FIG. 2 is a schematic view of the internal structure of the thin-lens video laryngoscope and the lens of the flexible endotracheal tube of the invention.
FIG. 3 is a schematic view of the thin-lens video laryngoscope and endotracheal tube introducer of the flexible endotracheal tube of the present invention.
FIG. 4 is a schematic view of the thin lens video laryngoscope and the endotracheal tube of the flexible endotracheal tube of the present invention.
In the figure, 1-display screen, 2-mirror handle, 3-mirror, 301-optical fiber channel, 302-suction channel, 303-flexible tracheal catheter channel, 304-polyester band, 4-inflatable bag, 401-inflatable tube I, 5-optical fiber, 6-sputum suction tube, 7-tracheal catheter, 701-cuff, 702-cuff inflatable tube, 8-tracheal catheter inserter and 801-fixing hole.
Detailed Description
A thin lens video laryngoscope and a flexible tracheal catheter are shown in figures 1 and 2 and comprise a display screen 1, a lens handle 2 and a lens 3; the display screen 1 and the mirror handle 2 have the same functions as the video laryngoscope structure (such as optical fiber, a light emitter, a camera device, a switch, a battery, a charging interface and the like) in clinical application at present; the lens 3 is a thin plate with the width of 1.5cm and the thickness of 0.5cm, is bent according to the physiological curvature of the oral cavity, the tongue and the pharynx, and is internally sequentially provided with an optical fiber channel 301, a suction channel 302 and a flexible tracheal catheter channel 303, wherein the optical fiber channel 301 is internally provided with an optical fiber 5, the optical fiber 5 is connected with the lens handle 2, the suction channel 302 is internally provided with a sputum suction pipe 6, the flexible tracheal catheter channel 303 is an elliptic smooth pipeline with the cross section of 0.4cm and 0.2cm of the elliptic major axis and 0.2cm of the minor axis; the outer side wall of the flexible tracheal catheter channel 303 is open in the whole process and is blocked by a polyester belt with moderate toughness and an elastic embedding groove. The outer surface of the front end of the lens 3 is backward 1cm from the front edge, an inflatable bag 4 with the length of 1cm and the diameter of 3cm is arranged, the length of an inflatable tube I401 is 30cm, and the tail end of the inflatable tube I is provided with an inflation valve; the openings of the optical fiber channel 301, the suction channel 302 and the flexible tracheal catheter channel 303 are arranged at a distance of 1.5cm from the front end of the lens 3; the lens 3 and the lens handle 2 can be flexibly separated and assembled. The rear end of the lens 3 is provided with a suction channel 303 interface.
As shown in fig. 4, the wall of the endotracheal tube 7 is made of a flexible, extremely thin, double-layered planar material and chain fibers of equal length uniformly distributed therebetween; the plane material has the performances of high tension resistance, wear resistance, tightness and extremely low elasticity; the length of the chain fiber is 2mm, and the chain fiber has the performances of high tensile strength and extremely low elasticity; the closed double-layer plane material forms a pipe wall cavity which can bear high-pressure gas, the tail part of the pipe wall cavity is provided with an inflation pipe II, and an inflation valve is arranged on the inflation pipe II; a cuff 701 with the length of 0.5cm and the diameter of 2.5cm is arranged at the position 2cm away from the front edge on the periphery of the front end of the tracheal catheter 7, a cuff inflation tube 702 is attached to the tube wall of the tracheal catheter 7, the cuff inflation tube 702 extends out of the tracheal catheter 7, the tail end of the cuff inflation tube 702 is also provided with an inflation valve, and the cuff 701 and the cuff inflation tube 702 are both made of the flexible materials; the length of the tracheal catheter 7 is 30cm, each cm from the front end is provided with a mark line, and the rear end can be connected with a standard breathing loop. The front edge of the tracheal catheter 7 is provided with a striking color, and is provided with a fixing line fixed with the tracheal catheter introducer 8, the fixing line is made of the same flexible material, and the length of the fixing line is 45 cm.
As shown in FIG. 3, the endotracheal tube inserting unit 8 is a steel bar having smooth both ends, a length of 40cm, a diameter of 0.1cm, and an appropriate toughness, and has fixing holes 801 through which fixing wires are inserted at the front and rear ends thereof.
The application process of the invention comprises the following steps:
1. the lumen and the cuff 701 of the tracheal catheter 7 are vacuumized to form a fixed strip with the cross section smaller than 0.2 x 0.3cm on the tracheal catheter 7, the fixed lines penetrate into the front end and rear end fixed holes 801 of the tracheal catheter introducer 8, the fixed lines are pulled to enable the front end of the tracheal catheter introducer 8 to be close to the front end of the tracheal catheter 7, the tracheal catheter 7 is parallel to the tracheal catheter introducer 8, and the fixed lines are firmly tied with the tail end fixed holes 801.
2. Firstly, the polyester band 304 of the flexible tracheal catheter channel 303 of the laryngoscope is blocked and fully lubricates the catheter channel, and then the front ends of the tracheal catheter introducer 8 and the tracheal catheter 7 are inserted from the rear end of the flexible tracheal catheter channel 303 to the front edge of the flexible tracheal catheter channel 303.
3. After anesthesia induction is finished, the video laryngoscope switch is closed, the display screen 1 is developed, the lens 3 is placed in an oral cavity and enters the throat, the lens 3 is assembled with the lens handle, the inflatable bag 4 of the lens 3 is inflated to observe the glottis, so that the glottis is well exposed, the tracheal catheter introducer 8 is pushed, the front end position of the laryngoscope is properly adjusted, and the tracheal catheter 7 enters the glottis by 2cm under the monitoring of the video laryngoscope; and then, sequentially inflating the cuff 701 from an inflation valve of the cuff of the tracheal catheter 7 to ensure that the pressure of the cuff 701 reaches 35-40 cm of water column, observing the lens 3 to ensure that the cuff 701 is in the glottis, fixing the tracheal catheter introducer 8, withdrawing the lens 3, pulling out the polyester band 4 for plugging the flexible tracheal catheter channel 303 from the lateral side while withdrawing the lens 3, separating the lens 3 from the tracheal catheter introducer 8 and the tracheal catheter 7 from the lateral side, withdrawing the lens 3, inflating the cuff 7 from the inflation valve at the tail end of the tracheal catheter 7 to fix the shape of the tracheal catheter 7, releasing a fixing line, withdrawing the tracheal catheter introducer 8, adjusting the pressure of the cuff 701 to 3-5 cm of water column, adjusting the insertion depth of the tracheal catheter 7, fixing the tracheal catheter 7 and finishing the insertion of the tracheal catheter 7.
Claims (3)
1. Thin lens video laryngoscope with flexible endotracheal tube, characterized by: the mirror comprises a display screen (1), a mirror handle (2) and a lens (3), wherein a light emitter, a camera device, a switch, a battery and a charging interface are arranged inside the mirror handle (2), the lens (3) is a hollow thin plate bent according to the physiological curvature of the oral cavity, tongue and throat, the width of the lens (3) is 1.5cm, and the thickness of the lens (3) is 0.5 cm;
the optical fiber channel (301), the suction channel (302) and the flexible tracheal catheter channel (303) are sequentially arranged in the lens (3); the cross section of the flexible tracheal catheter channel (303) is oval, the major axis of the oval is 0.4cm, the minor axis of the oval is 0.2cm, an opening is formed in the outer side wall of the flexible tracheal catheter channel (303), and a polyester belt (304) is arranged at the opening; an inflatable bag (4) is arranged on the outer surface of the front end of the lens (3) at a position 1cm away from the front end face, the length of the inflatable bag (4) is 1cm, the diameter of the cross section of the inflatable bag is 3cm, and an inflatable tube I (401) with the length of 30cm is arranged on the inflatable bag (4);
the optical fiber (5) is arranged in the optical fiber channel (301), the optical fiber (5) is connected with the endoscope handle (2), the sputum suction tube (6) is arranged in the suction channel (302), the tracheal tube (7) is arranged in the flexible tracheal tube channel (303), the tracheal tube (7) is cylindrical, and the tail part of the tracheal tube (7) is provided with an inflation tube II; a cuff (701) with the length of 0.5cm and the cross section diameter of 2.5cm is arranged at a position 2cm away from the front edge outside the front end of the tracheal catheter (7), a cuff inflation tube (702) is arranged on the cuff (701), and the length of the cuff inflation tube (702) is greater than that of the tracheal catheter (7);
the tracheal catheter (7) is placed into the flexible tracheal catheter channel (303) through a tracheal catheter introducer (8), the tracheal catheter introducer (8) is a tough steel bar with smooth two ends, the two ends of the tracheal catheter introducer are provided with fixing holes (801), the length of the steel bar is 40cm, and the diameter of the cross section of the steel bar is 0.05 cm-0.1 cm;
the tracheal catheter (7) is made of flexible double-layer plane materials and evenly distributed equal-length chain-linked fibers, and the length of the chain-linked fibers is 2 mm.
2. The thin lens video laryngoscope with flexible endotracheal tube as recited in claim 1, wherein: and the inflation tube I (401), the inflation tube II and the cuff inflation tube (702) are all provided with inflation valves.
3. The thin lens video laryngoscope with flexible endotracheal tube as recited in claim 1, wherein: tracheal tube (7) length is 30cm, and the front end is provided with the fixed line, and all is provided with the sign line from the front end every centimetre, and the rear end is connected with breathing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810042247.8A CN108245125B (en) | 2018-01-17 | 2018-01-17 | Thin lens video laryngoscope and flexible tracheal catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810042247.8A CN108245125B (en) | 2018-01-17 | 2018-01-17 | Thin lens video laryngoscope and flexible tracheal catheter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108245125A CN108245125A (en) | 2018-07-06 |
| CN108245125B true CN108245125B (en) | 2020-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810042247.8A Expired - Fee Related CN108245125B (en) | 2018-01-17 | 2018-01-17 | Thin lens video laryngoscope and flexible tracheal catheter |
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| Country | Link |
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| CN (1) | CN108245125B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110613885A (en) * | 2019-09-23 | 2019-12-27 | 长春中医药大学附属医院(吉林省中医院) | Upper respiratory tract dilator and application method thereof |
| CN111135418A (en) * | 2019-12-31 | 2020-05-12 | 宁德市闽东医院 | Fixed endotracheal tube of oral cavity section |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201022698Y (en) * | 2007-02-02 | 2008-02-20 | 吴新军 | Portable visible anaesthetic laryngoscope |
| CN201295221Y (en) * | 2008-11-14 | 2009-08-26 | 浙江苏嘉医疗器械股份有限公司 | Slim laryngoscope |
| JP5733726B2 (en) * | 2009-11-02 | 2015-06-10 | 公立大学法人名古屋市立大学 | Larynx enlargement tool |
| US8608652B2 (en) * | 2009-11-05 | 2013-12-17 | Ethicon Endo-Surgery, Inc. | Vaginal entry surgical devices, kit, system, and method |
| CN201806689U (en) * | 2010-07-30 | 2011-04-27 | 沈阳易艾路医疗器械有限公司 | Portable visual pharyngoscope |
| CN201831865U (en) * | 2010-09-21 | 2011-05-18 | 肖哲毅 | Portable digital multifunctional video laryngoscope |
| CN202458299U (en) * | 2012-03-12 | 2012-10-03 | 台州瀚创医疗器械科技有限公司 | Hose laryngoscope |
| CA2937890A1 (en) * | 2014-01-31 | 2015-08-06 | University Of Louisville Research Foundation, Inc. | Laryngoscope with integrated and controllable suction |
| CN204931624U (en) * | 2015-07-14 | 2016-01-06 | 赵荣银 | Arc chip anesthesia laryngopharyngeal mirror |
| CN204813778U (en) * | 2015-08-10 | 2015-12-02 | 路万林 | Novel laryngoscope piece is used to larynx branch of academic or vocational study |
| CN205095206U (en) * | 2015-11-16 | 2016-03-23 | 上海丽天药业有限公司 | Novel disposable visual trachea cannula |
| CN205458576U (en) * | 2016-01-18 | 2016-08-17 | 哈励逊国际和平医院 | Visual laryngoscope |
| CN105595953A (en) * | 2016-02-02 | 2016-05-25 | 西安索格医疗科技有限公司 | Disposable multi-cavity laryngoscopic lens |
| CN205697689U (en) * | 2016-06-21 | 2016-11-23 | 南昌大学第二附属医院 | A kind of per os regulation guiding tube |
| CN206183233U (en) * | 2016-07-28 | 2017-05-24 | 中南大学 | A video laryngoscope for laryngeal mask location |
| CN206566325U (en) * | 2016-11-28 | 2017-10-20 | 扬州市第一人民医院 | A kind of guiding device of trachea cannula branchofiberoscope guiding |
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2018
- 2018-01-17 CN CN201810042247.8A patent/CN108245125B/en not_active Expired - Fee Related
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| CN108245125A (en) | 2018-07-06 |
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