CN111569213B - Safe type endotracheal tube subassembly structure - Google Patents
Safe type endotracheal tube subassembly structure Download PDFInfo
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- CN111569213B CN111569213B CN202010417213.XA CN202010417213A CN111569213B CN 111569213 B CN111569213 B CN 111569213B CN 202010417213 A CN202010417213 A CN 202010417213A CN 111569213 B CN111569213 B CN 111569213B
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- catheter body
- catheter
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- sleeve
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- 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
-
- 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
- A61M16/0488—Mouthpieces; Means for guiding, securing or introducing the tubes
- A61M16/0497—Tube stabilizer
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- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Emergency Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Otolaryngology (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention relates to the technical field of medical supplies and discloses a safety type tracheal catheter assembly structure which comprises a catheter body, wherein a cuff is fixed on the outer side of the lower end of the catheter body, an air guide tube is connected onto the cuff, an air guide nozzle is connected to the outer end of the air guide tube, a supporting bag sleeve capable of axially elastically deforming is arranged on the outer side of the lower end of the catheter body, a corrugated protective film is sleeved between two ends of the outer side of the supporting bag sleeve, an inflation tube is connected onto the supporting bag sleeve, and the outer end of the inflation tube is connected with the inflation nozzle. The invention can effectively prevent the head of the catheter body from scraping the inner wall of the respiratory tract to cause the damage of the inner wall of the respiratory tract when in use, and is safer to use.
Description
Technical Field
The invention relates to the technical field of medical supplies, in particular to a safety type tracheal catheter assembly structure.
Background
The tracheal catheter is an important rescue technique commonly used in emergency treatment work, and is one of means which are widely, effectively and quickly applied in respiratory tract management. Trachea cannula commonly used in the existing market is divided into types such as common type intubate, koll type intubate, child cuts intubate, respiratory tract with suction catheter, and in trachea catheter inserted the respiratory tract, trachea catheter's head set up the cover bag, and after trachea catheter inserted suitable position, aerify the cover bag and make cover bag inflation, cover bag surface and respiratory tract contact support, and then fix a position trachea catheter. However, the front end of the tracheal catheter is generally wedge-shaped or pointed (for example, the head of the tracheal catheter in patent nos. 2017105320476 and 2018107190081 is wedge-shaped), and since the glottis above the respiratory tract of a human body is narrower, the space in the respiratory tract is larger than that in the glottis, and the head of the tracheal catheter is in a suspension state in the process of continuously inserting the head of the tracheal catheter after passing through the glottis, the head of the tracheal catheter is easily scratched with the inner wall of the respiratory tract, so that the inner wall of the respiratory tract is easily damaged.
Disclosure of Invention
The invention provides a safe tracheal catheter assembly structure which can effectively prevent the head of a catheter body from scraping the inner wall of a respiratory tract and is safer to use, and aims to solve the problem that the head of the tracheal catheter in the prior art is easy to scrape the inner wall of the respiratory tract to cause internal damage of the respiratory tract when the head of the tracheal catheter is inserted into the respiratory tract.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a safe type endotracheal tube subassembly structure, includes the pipe body, the lower extreme outside of pipe body is fixed with the cover bag, be connected with the air duct on the cover bag, the outer end of air duct is connected with the air guide mouth, the lower extreme outside of pipe body is equipped with the support bag cover that can axial elastic deformation, the cover is equipped with the ripple protecting film between the outside both ends of support bag cover, be connected with the gas tube on the support bag cover, the outer end of gas tube is connected with the charging connector. When the novel respiratory tract protection device is used, the lower end of the catheter body penetrates through a glottis, then the supporting balloon sleeve is inflated through the inflating nozzle and the inflating pipe, the supporting balloon sleeve expands along the axial direction, the head of the catheter body is wrapped, the catheter body is further inserted into a respiratory tract, the catheter body is protected by the corrugated protective film (the supporting balloon sleeve) in the inserting process and cannot damage the respiratory tract, when the head of the catheter body moves to a proper position in the respiratory tract, gas in the supporting balloon sleeve is exhausted through the inflating nozzle and the inflating pipe, the supporting balloon sleeve contracts along the axial direction at the moment, the head of the catheter body is exposed, the cuff is inflated through the air guiding nozzle and the air guiding pipe, the balloon sleeve is expanded and then is in contact with the inner wall of the respiratory tract for supporting, the catheter body is positioned, and then oxygen is introduced through the catheter body for breathing; when the support balloon sleeve needs to be taken out, the support balloon sleeve is inflated to enable the support balloon sleeve to axially extend to cover the head of the catheter body, then the cuff is deflated to enable the cuff to be deflated, and finally the whole body is taken out from the respiratory tract and the glottis; this kind of endotracheal tube subassembly inserts the respiratory track, extracts the in-process of respiratory track, and the head of pipe body is all protected by the ripple protecting film, consequently can not harm the respiratory track, uses safelyr.
Preferably, the cross section of the head of the catheter body is circular, the cross section of the middle part of the catheter body is oval, the center of the catheter body is provided with a flow guide channel, the head of the catheter body is of a wedge-shaped structure, and one side of the head of the catheter body is provided with a Murphy's eye; the middle part of the catheter body is provided with positioning through holes at two sides of the flow guide channel, wherein the air guide pipe passes through one positioning through hole, and the inflation pipe passes through the other positioning through hole; the upper end of the catheter body is provided with a catheter extending section, the cross section of the catheter extending section is oval, the major diameter of the catheter extending section is perpendicular to that of the catheter body, and the outer end of the catheter extending section is provided with a catheter connector. Because people's lips are opened from top to bottom, and the glottis is opened from left to right, the big footpath of pipe body is parallel with the gap of glottis, is convenient for insert the glottis, and the big footpath of pipe extension section is parallel with the gap of lips to reduce the aperture of lips, improve the travelling comfort.
Preferably, the outer ends of the air duct and the air inflation tube are provided with indicating air bags; the outside of the catheter body is provided with scales. The indicating air bag is used for indicating air pressure, and the scales are used for indicating the insertion depth.
Preferably, the cuff comprises an inner support sleeve and a cuff body, a closed annular air cavity is enclosed between the inner support sleeve and the cuff body, the inner support sleeve is fixed to the outer side of the front end of the catheter body, two connecting through holes are formed in the inner support sleeve, the lower end of the air guide tube extends into the connecting through holes to be connected with the annular air cavity, and the lower end of the air inflation tube penetrates through the connecting through holes to be connected with the support cuff.
Preferably, the outer sides of the two ends of the supporting bag sleeve extend outwards to form connecting convex rings, the connecting convex rings at the upper end of the supporting bag sleeve are fixed with the lower end of the inner supporting sleeve, a plurality of elastic inhaul cables are arranged between the two connecting convex rings, an axial expansion cavity is arranged in the supporting bag sleeve, and the lower end of the inflation tube is communicated with the axial expansion cavity. The axial expansion cavity is inflated and then expanded along the axial direction, and the support bag sleeve is extended, so that the head of the catheter body is coated and protected; after the air in the axial expansion cavity is released, the supporting bag sleeve is contracted along the axial direction by the tension of the elastic inhaul cable, and at the moment, the Murphy hole at the head of the catheter body is completely exposed, so that the air is conveniently guided by the catheter body.
Preferably, an annular gap is formed between the support balloon sleeve and the head of the catheter body, a plurality of flexible petals distributed along the circumferential direction are arranged between the inner annular wall and the outer annular wall of the axial expansion cavity, the inner side of each flexible petal and the inner annular wall are of an integrated structure, and the outer side of each flexible petal and the outer annular wall are of an integrated structure. The flexible flap is used for weakening circumferential expansion of the support bag sleeve after inflation, so that an axial expansion cavity in the support bag sleeve is more favorable for axial expansion after inflation.
Preferably, the lower end of the inner annular wall of the axial expansion cavity protrudes inwards to form an elastic convex ring, and a through hole is formed in the flexible membrane flap corresponding to the elastic convex ring; the wall thickness of the elastic convex ring is smaller than that of the inner ring wall. When axial inflation chamber was full of gas and was in the inflation state, continued to inflate to the axial inflation intracavity this moment, because elasticity bulge loop department wall thickness is less and inside not receive pulling of flexible membrane lamella, consequently continued to inflate back elasticity bulge loop department can inwards expand and hold the outer wall of pipe body tightly to play stable protection to the head of pipe body, prevent to support the friction of bag cover lower extreme and respiratory track inner wall and shrink.
Therefore, the invention can effectively prevent the head of the catheter body from scraping the inner wall of the respiratory tract to cause the damage of the inner wall of the respiratory tract when in use, and is safer to use.
Drawings
FIG. 1 is a schematic diagram of a structure of the present invention.
FIG. 2 is a schematic view of the present invention after passing through the sound door.
Fig. 3 is a schematic diagram of the final usage state of the present invention.
Fig. 4 is a schematic connection diagram of the catheter body, the balloon sleeve and the support balloon sleeve.
Fig. 5 isbase:Sub>A schematic cross-sectional view taken atbase:Sub>A-base:Sub>A in fig. 1.
Fig. 6 is a schematic structural view of the support cuff.
Fig. 7 is a cross-sectional view of a support cuff.
Fig. 8 is a cross-sectional view taken at B-B in fig. 6.
In the figure: the cuff comprises a catheter body 1, a flow guide channel 100, a Murphy's eye 101, a positioning through hole 102, a catheter extension section 103, a cuff 2, an inner support sleeve 20, a cuff body 21, an annular air cavity 22, a connecting through hole 23, a catheter joint 3, an air duct 4, an air guide nozzle 5, a support balloon sleeve 6, a connecting convex ring 60, an elastic inhaul cable 61, an axial expansion cavity 62, an inner annular wall 620, an outer annular wall 621, an annular gap 63, a flexible membrane flap 64, an elastic convex ring 65, a through hole 66, a corrugated protective membrane 7, an inflation tube 8, an inflation nozzle 9 and an indication balloon 10.
Detailed Description
The invention is further described with reference to the following figures and detailed description:
as shown in fig. 1, 4 and 5, the safety type tracheal catheter assembly structure comprises a catheter body 1, wherein a cuff 2 is fixed on the outer side of the lower end of the catheter body 1, a tracheal tube 4 is connected to the cuff 2, an air guide nozzle 5 is connected to the outer end of the tracheal tube 4, a support cuff 6 which can elastically deform in the axial direction is arranged on the outer side of the lower end of the catheter body 1, a corrugated protective film 7 is sleeved between the two ends of the outer side of the support cuff 6, an inflation tube 8 is connected to the support cuff, an inflation nozzle 9 is connected to the outer end of the inflation tube, an indication air bag 10 is arranged at the outer ends of the tracheal tube 4 and the inflation tube 8, and scales are arranged on the outer side of the catheter body 1; the cross section of the head of the catheter body 1 is circular, the cross section of the middle part of the catheter body 1 is oval, a flow guide channel 100 is arranged in the center of the catheter body, the head of the catheter body 1 is of a wedge-shaped structure, one side of the head of the catheter body is provided with a Murphy's eye 101, positioning through holes 102 are formed in the middle part of the catheter body 1 and positioned on two sides of the flow guide channel, the air guide pipe 5 penetrates through one positioning through hole, and the inflation pipe 8 penetrates through the other positioning through hole; the upper end of the catheter body 1 is provided with a catheter extending section 103, the cross section of the catheter extending section 103 is oval, the major diameter of the catheter extending section 103 is perpendicular to that of the catheter body 1, and the outer end of the catheter extending section 103 is provided with a catheter connector 3.
As shown in fig. 4, the cuff 2 comprises an inner support sleeve 20 and a cuff body 21, a closed annular air cavity 22 is enclosed between the inner support sleeve and the cuff body, the inner support sleeve 20 is fixed with the outer side of the front end of the catheter body, the inner support sleeve 20 is provided with two connecting through holes 23, the lower end of the air duct 4 extends into the connecting through holes 23 to be connected with the annular air cavity 22, and the lower end of the air inflation tube 8 passes through the connecting through holes and then is connected with the support cuff 6; as shown in fig. 4, 6, 7 and 8, the outer sides of the two ends of the support bag sleeve 6 extend outwards to form connecting convex rings 60, the connecting convex ring at the upper end of the support bag sleeve is fixed with the lower end of the inner support sleeve, a plurality of elastic pull ropes 61 are arranged between the two connecting convex rings 60, an axial expansion cavity 62 is arranged in the support bag sleeve 6, and the lower end of the inflation tube 8 is communicated with the axial expansion cavity; an annular gap 63 is formed between the support balloon 6 and the head of the catheter body 1, a plurality of flexible petals 64 distributed along the circumferential direction are arranged between the inner annular wall 620 and the outer annular wall 621 of the axial expansion cavity 62, the inner side of each flexible petal 64 and the inner annular wall are of an integrated structure, the outer side of each flexible petal and the outer annular wall are of an integrated structure, the lower end of the inner annular wall of the axial expansion cavity 62 protrudes inwards to form an elastic convex ring 65, and a through hole 66 is formed in the flexible petal 64 at the position corresponding to the elastic convex ring; the wall thickness of elasticity bulge loop department is less than the wall thickness of interior rampart, and the wall thickness of elasticity bulge loop department is half the wall thickness of interior rampart in this embodiment.
The principle of the invention is as follows with reference to the attached drawings: before use, the states of the cuff and the supporting cuff are shown in figure 1, the supporting cuff and the cuff are both in a contracted state, the volume of the head of the catheter body is the smallest at the moment, the supporting cuff and the cuff can conveniently pass through a glottis, the lower end of the catheter body shown in figure 1 passes through the glottis, the supporting cuff and an inflation tube are inflated into the supporting cuff at the moment, the supporting cuff is inflated and expands along the axial direction after being inflated, so that the head of the catheter body is wrapped, the supporting cuff is inflated continuously, the elastic convex ring 65 is preferentially deformed towards an inward bulge after being inflated due to the fact that the wall thickness is smaller, so that the front end of the catheter body is clasped and positioned, and the states of the cuff and the supporting cuff are shown in figure 2 at the moment; the catheter body is continuously inserted into the respiratory tract, the catheter body is protected by a corrugated protective membrane (a supporting bag sleeve) in the insertion process and cannot damage the respiratory tract, when the head of the catheter body moves to a proper position in the respiratory tract, gas in the supporting bag sleeve is exhausted through an inflating nozzle and an inflating pipe, the supporting bag sleeve contracts along the axial direction at the moment, the head of the catheter body is exposed, the cuff is inflated through the inflating nozzle and the inflating pipe, the bag sleeve is expanded and then contacts and supports with the inner wall of the respiratory tract, the catheter body is positioned, the state is shown in figure 3, and then oxygen is introduced through the catheter body to breathe; similarly, when the trachea body needs to be taken out after use, the supporting bag sleeve is inflated, the cuff is deflated, the catheter body is in the state shown in fig. 2 at the moment, the catheter is pulled out outwards, when the head of the catheter body moves to the glottis position, the supporting bag sleeve is deflated, the catheter body is in the state shown in fig. 1 at the moment, and finally the whole body is pulled out from the glottis position and taken out from the oral cavity. The in-process that the pipe body was inserting the respiratory track, was taken out from the respiratory track, the head of pipe body all is by ripple protecting film 7, support 6 cladding of bag cover to the effectual pipe body head that prevents takes place the scraping with the respiratory track inner wall, thereby the effectual pipe body that prevents harms the respiratory track inner wall, whole use safer.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made based on the present invention to solve the same technical problems and achieve the same technical effects are within the scope of the present invention.
Claims (4)
1. A safe type tracheal catheter assembly structure comprises a catheter body, wherein a cuff is fixed on the outer side of the lower end of the catheter body, a gas guide tube is connected onto the cuff, and a gas guide nozzle is connected to the outer end of the gas guide tube; the cuff comprises an inner support sleeve and a cuff body, a closed annular air cavity is enclosed between the inner support sleeve and the cuff body, the inner support sleeve is fixed with the outer side of the front end of the catheter body, two connecting through holes are formed in the inner support sleeve, the lower end of the air duct extends into the connecting through hole to be connected with the annular air cavity, and the lower end of the inflation tube penetrates through the connecting through holes and then is connected with the support cuff; the outer sides of two ends of the supporting bag sleeve extend outwards to form connecting convex rings, the connecting convex ring at the upper end of the supporting bag sleeve is fixed with the lower end of the inner supporting sleeve, a plurality of elastic inhaul cables are arranged between the two connecting convex rings, an axial expansion cavity is arranged in the supporting bag sleeve, and the lower end of the inflation tube is communicated with the axial expansion cavity; an annular gap is formed between the support balloon sleeve and the head of the catheter body, a plurality of flexible petals which are distributed along the circumferential direction are arranged between the inner annular wall and the outer annular wall of the axial expansion cavity, the inner side and the inner annular wall of each flexible petal are of an integrated structure, and the outer side and the outer annular wall of each flexible petal are of an integrated structure.
2. The safety endotracheal tube assembly according to claim 1, wherein the head of the catheter body has a circular cross section, the middle portion of the catheter body has an oval cross section, the center of the catheter body is provided with a flow guide channel, the head of the catheter body has a wedge-shaped structure, and one side of the head of the catheter body is provided with a Murphy's eye; the middle part of the catheter body is provided with positioning through holes at two sides of the flow guide channel, wherein the air guide pipe passes through one positioning through hole, and the inflation pipe passes through the other positioning through hole; the upper end of the catheter body is provided with a catheter extending section, the cross section of the catheter extending section is oval, the major diameter of the catheter extending section is perpendicular to that of the catheter body, and the outer end of the catheter extending section is provided with a catheter connector.
3. A safety endotracheal tube assembly according to claim 1 or 2, characterized in that the outer ends of the airway tube and the inflation tube are provided with indicating balloons; the outside of the catheter body is provided with scales.
4. The safety endotracheal tube assembly according to claim 1, wherein the lower end of the inner annular wall of the axial expansion chamber is inwardly protruded to form an elastic convex ring, and a through hole is formed in the flexible diaphragm corresponding to the elastic convex ring; the wall thickness of the elastic convex ring is smaller than that of the inner ring wall.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010417213.XA CN111569213B (en) | 2020-05-18 | 2020-05-18 | Safe type endotracheal tube subassembly structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010417213.XA CN111569213B (en) | 2020-05-18 | 2020-05-18 | Safe type endotracheal tube subassembly structure |
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| CN111569213A CN111569213A (en) | 2020-08-25 |
| CN111569213B true CN111569213B (en) | 2022-11-01 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4898168A (en) * | 1988-01-09 | 1990-02-06 | Smiths Industries Public Limited Company | Inflation indicators for cuffed tubes |
| US5221270A (en) * | 1991-06-28 | 1993-06-22 | Cook Incorporated | Soft tip guiding catheter |
| WO1994000172A1 (en) * | 1992-06-22 | 1994-01-06 | Wong Henry C C | Automatic disposable needle guard |
| JPH08317987A (en) * | 1995-05-24 | 1996-12-03 | Asahi Intec Kk | Catheter |
| CN203469181U (en) * | 2013-09-18 | 2014-03-12 | 宁波市海曙思力德贸易有限公司 | Trachea-type ventilation catheter |
| JP2018075163A (en) * | 2016-11-09 | 2018-05-17 | テルモ株式会社 | Balloon catheter |
| CN208678116U (en) * | 2018-03-28 | 2019-04-02 | 上海市肺科医院 | A kind of modified form is used for the trachea cannula of operation on trachea |
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| SE433445B (en) * | 1981-04-16 | 1984-05-28 | Erik Gustav Percy Nordqvist | urinary catheter |
| US5425709A (en) * | 1993-07-22 | 1995-06-20 | C. R. Bard, Inc. | Sheath for a balloon catheter |
| CN201414982Y (en) * | 2009-05-19 | 2010-03-03 | 吴春林 | Multifunctional tracheal tube |
| US20110094655A1 (en) * | 2009-10-26 | 2011-04-28 | Wiita Gregory D | Method For Manufacturing A Balloon Encapsulated Catheter Tip |
| JP2014200366A (en) * | 2013-04-02 | 2014-10-27 | テルモ株式会社 | Balloon catheter |
| CN203539418U (en) * | 2013-10-29 | 2014-04-16 | 侯兴华 | Lung puncture drainage device preventing injury caused by needle point |
| CN109481805A (en) * | 2018-11-07 | 2019-03-19 | 杭州市第人民医院 | A kind of intranasal laryngeal airway conduit |
| CN209967339U (en) * | 2019-05-16 | 2020-01-21 | 李晶 | Hospital infectious department trachea cannula device |
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2020
- 2020-05-18 CN CN202010417213.XA patent/CN111569213B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4898168A (en) * | 1988-01-09 | 1990-02-06 | Smiths Industries Public Limited Company | Inflation indicators for cuffed tubes |
| US5221270A (en) * | 1991-06-28 | 1993-06-22 | Cook Incorporated | Soft tip guiding catheter |
| WO1994000172A1 (en) * | 1992-06-22 | 1994-01-06 | Wong Henry C C | Automatic disposable needle guard |
| JPH08317987A (en) * | 1995-05-24 | 1996-12-03 | Asahi Intec Kk | Catheter |
| CN203469181U (en) * | 2013-09-18 | 2014-03-12 | 宁波市海曙思力德贸易有限公司 | Trachea-type ventilation catheter |
| JP2018075163A (en) * | 2016-11-09 | 2018-05-17 | テルモ株式会社 | Balloon catheter |
| CN208678116U (en) * | 2018-03-28 | 2019-04-02 | 上海市肺科医院 | A kind of modified form is used for the trachea cannula of operation on trachea |
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| CN111569213A (en) | 2020-08-25 |
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