WO2017024681A1 - 带咽部吸引管的气管导管 - Google Patents

带咽部吸引管的气管导管 Download PDF

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Publication number
WO2017024681A1
WO2017024681A1 PCT/CN2015/094413 CN2015094413W WO2017024681A1 WO 2017024681 A1 WO2017024681 A1 WO 2017024681A1 CN 2015094413 W CN2015094413 W CN 2015094413W WO 2017024681 A1 WO2017024681 A1 WO 2017024681A1
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WO
WIPO (PCT)
Prior art keywords
tube
pharyngeal
tracheal
suction
pharyngeal suction
Prior art date
Application number
PCT/CN2015/094413
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English (en)
French (fr)
Inventor
关开泮
Original Assignee
关开泮
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.)
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Publication date
Application filed by 关开泮 filed Critical 关开泮
Priority to US15/571,459 priority Critical patent/US10201677B2/en
Publication of WO2017024681A1 publication Critical patent/WO2017024681A1/zh

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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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; 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. ventilators; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0434—Cuffs
    • 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. ventilators; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0475—Tracheal tubes having openings in the tube
    • 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. ventilators; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0475—Tracheal tubes having openings in the tube
    • A61M16/0477—Tracheal tubes having openings in the tube with incorporated means for delivering or removing fluids
    • 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. ventilators; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0475—Tracheal tubes having openings in the tube
    • A61M16/0477—Tracheal tubes having openings in the tube with incorporated means for delivering or removing fluids
    • A61M16/0479—Tracheal tubes having openings in the tube with incorporated means for delivering or removing fluids above the cuff, e.g. giving access to the upper trachea
    • 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. ventilators; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0486—Multi-lumen 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. ventilators; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0402—Special features for tracheal tubes not otherwise provided for
    • A61M16/0409—Special features for tracheal tubes not otherwise provided for with mean for closing the oesophagus
    • 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. ventilators; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0488—Mouthpieces; Means for guiding, securing or introducing the 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. ventilators; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A61M16/16—Devices to humidify the respiration air
    • A61M16/161—Devices to humidify the respiration air with means for measuring the humidity
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/18—General characteristics of the apparatus with alarm

Definitions

  • the present invention relates to the field of medical device technology, and in particular to an endotracheal tube with a pharyngeal suction tube.
  • Endotracheal intubation and ventilator assisted breathing are the main clinical measures used in the treatment of respiratory failure, severe heart failure, and surgical anesthesia, but endotracheal intubation often causes ventilator-associated pneumonia, which can lead to longer hospital stays, increased costs, and possibly even Lead to an increase in mortality.
  • Ventilator-associated pneumonia is often a multi-drug resistant infection that has become a century of medical problems.
  • the inhalation of oropharyngeal nasal secretions is the most important factor. Preventing oropharyngeal secretions from entering the lungs can significantly reduce the incidence of ventilator-associated pneumonia.
  • the main clinical measures are: (1) regular or continuous suction under the glottis; (2) suction oropharyngeal secretions by suction pipe on demand or periodically; (3) regular oropharyngeal cleaning; (4) regular monitoring of airbags Pressure, keep the pressure at 20 ⁇ 30cm water column level.
  • these measures are not effective and do not effectively prevent pharyngeal secretions from entering the lungs, resulting in a high incidence of ventilator-associated pneumonia.
  • the suction tube of the conventionally used suction tube is easy to cause damage and bleeding of the mucous membrane, and the cleaning effect is poor.
  • the existing measures are quite cumbersome and the workload is large.
  • the object of the present invention is to provide a tracheal tube with a pharyngeal suction tube, which makes the suction operation simple and efficient, reduces the side effect caused by the conventional suction tube suction operation, greatly improves the removal efficiency of the pharyngeal secretions, and reduces the breathing.
  • the purpose of machine-related pneumonia is to provide a tracheal tube with a pharyngeal suction tube, which makes the suction operation simple and efficient, reduces the side effect caused by the conventional suction tube suction operation, greatly improves the removal efficiency of the pharyngeal secretions, and reduces the breathing.
  • the present invention is implemented as follows:
  • An endotracheal tube with a pharyngeal suction tube comprising a tracheal tube body and a pharyngeal suction tube for absorbing a patient's pharyngeal secretion, the tracheal tube body being integrally formed with the pharyngeal suction tube, the pharynx
  • the suction tube is connected to the outer wall of the tracheal tube body and fixed to the rear of the tracheal tube body.
  • the method further includes: a baffle sleeved at one end of the tracheal tube body, the baffle being located 3.5 cm above the air bag of the tracheal tube body.
  • the baffle has the following functions: on the one hand, the oral secretions are prevented from flowing into the patient's glottis along the tracheal tube body; on the other hand, the baffle also has a positioning function, and when the tracheal tube is successfully inserted into the glottis, the catheter body is gently pushed forward.
  • the baffle is lightly placed on the laryngeal door, and the catheter body is rotated such that the anterior fold of the pharyngeal suction tube is directed perpendicularly to the posterior pharyngeal wall, thereby limiting the position of the pharyngeal suction tube to the pharyngeal floor of the patient. In order to attract the pharyngeal effusion more thoroughly through the pharyngeal suction tube.
  • the method further includes: a first flushing tube, the first flushing tube is embedded in a front wall of the tracheal tube body, and the first flushing tube is located at a distance of 1.5 cm from the baffle An opening is arranged outside the tracheal tube, and the first irrigation tube is connected to the incisor line with the tracheal tube body 3.0 After the cm is separated from the tracheal tube body, the extension tube is externally connected to the syringe sleeve. The first irrigation tube is used to flush the throat of the patient.
  • one end of the pharyngeal suction tube is located adjacent to the baffle, and the pharyngeal suction tube is separated from the tracheal tube body by 3.5 cm below the incisor line. Pipe external hose connector. Convenient to connect the suction device to facilitate the fixation of the endotracheal tube.
  • the pharyngeal suction tube is bent away from the end of the baffle body away from the tracheal tube body to form a front fold portion, and the front fold portion is perpendicular to the tracheal tube body.
  • the distance between the port and the tracheal tube body is 1.2 cm, and the front end portion is flush with the horizontal line of the baffle.
  • the pharyngeal suction tube is provided with a front fold portion.
  • the front fold portion brings the pharyngeal suction tube port closer to the patient's posterior pharyngeal wall mucosa, so that the suction is cleaner.
  • the port of the front fold portion is closed, and the side wall of the front fold portion is provided with two suction ports, and the two suction ports are symmetrically distributed along the axial direction of the pharyngeal suction tube, two The suction ports are each 3 mm from the end of the front folded portion.
  • the above design of the end of the pharyngeal suction tube keeps the suction port and the mucosa at a distance, so that the adsorption damage of the suction port to the pharyngeal mucosa of the patient can be avoided or reduced, and the problem of mucosal bleeding can be avoided.
  • the method further includes: a second flushing tube embedded in a front wall of the pharyngeal suction tube connected to the endotracheal tube body, and an opening at one end of the second flushing tube Placed in the lumen of the lower rear of the suction ports on both sides, and near the port of the pharyngeal suction tube, the second irrigation tube draws the tooth line 3.0 with the pharyngeal suction tube After cm, separate from the pharyngeal suction tube and extend the tube to the external syringe tip.
  • the pharyngeal bottom mucosa can also be washed.
  • the method further includes: a humidity sensing sensing device, wherein the humidity sensing sensing device comprises a connecting wire and a humidity sensing electrode, wherein the humidity sensing electrode is disposed at a side wall of the front folding port, the connection One end of the wire is electrically connected to the humidity sensing electrode, and the other end of the connecting wire extends out of the patient's mouth.
  • the humidity sensing electrode can sense the environmental humidity of the patient's pharynx. When the patient's pharynx accumulates a certain amount of secretion, the humidity sensing electrode transmits the information to the external device, so that the doctor can promptly attract secretions to achieve pharyngeal secretion. The object is attracted as needed, thereby reducing the secretion of pharyngeal secretions into the glottis and achieving the purpose of reducing ventilator-associated pneumonia.
  • the method further includes: a third irrigation tube, the third irrigation tube is embedded in the rear tube wall of the pharyngeal suction tube, and one end of the third irrigation tube is directly opposite to the patient after successful intubation
  • An opening is provided at the top of the hard palate and outside the rear tube wall, and the third flushing tube follows the pharyngeal suction tube out of the tooth line 3.0 After cm, it is separated from the pharyngeal suction tube, and the extension tube is connected to the syringe sleeve.
  • the third suction tube can be used to rinse the patient's mouth to keep the oral cavity clean and prevent oral bacteria from breeding.
  • the method further includes a silicone film integrally formed with the endotracheal tube body and the pharyngeal suction tube, the silicone film and the outer side wall of the pharyngeal suction tube and the outer side wall of the tracheal tube body, respectively Connecting, the silicone membrane, the outer sidewall of the pharyngeal suction tube, and the outer sidewall of the tracheal catheter body constitute a gastric tube tunnel through which the gastric tube passes, the silicone membrane being located beside the pharyngeal suction tube Behind the endotracheal tube body, the tunnel cavity of the stomach tube tunnel is of sufficient size to pass through a conventional gastric tube, and the opening of one end of the stomach tube tunnel is away from the baffle 4.0 Cm, the opening at the other end of the gastric tube tunnel extends out of the patient's mouth.
  • a silicone film integrally formed with the endotracheal tube body and the pharyngeal suction tube, the silicone film and the outer side wall of the pharynge
  • the tracheal tube is provided with a gastric tube tunnel, so that after the patient's tracheal tube is successful, it is easier to insert the stomach tube through the stomach tube tunnel, and the stomach tube does not need to be suspended in the nasal cavity to reduce nasal discomfort, mucosal damage, and sinusitis.
  • the invention provides an endotracheal tube with a pharyngeal suction tube, which comprises an integrally formed tracheal tube body and a pharyngeal suction tube.
  • a pharyngeal suction tube which comprises an integrally formed tracheal tube body and a pharyngeal suction tube.
  • the pharyngeal suction tube is also inserted at the same time, and the tracheal tube is indwelled.
  • the long-term positioning and retention of the pharyngeal suction tube is realized, and the suction and removal of the patient's pharyngeal secretions are more effectively realized, and the problem that the secretion of the pharyngeal bottom overflows into the glottis or flows into the glottis along the tracheal tube is greatly reduced.
  • Figure 1 is a schematic view showing the structure of a tracheal tube commonly used in clinical practice
  • FIG. 2 is a schematic structural view of an endotracheal tube with a pharyngeal suction tube according to Embodiment 1 of the present invention
  • Figure 3 is a schematic cross-sectional view of the B-B plane of Figure 2;
  • FIG. 4 is a schematic structural view of a pharyngeal suction tube having a front fold portion in an endotracheal tube with a pharyngeal suction tube according to a first embodiment of the present invention
  • FIG. 5 is a schematic structural view of an endotracheal tube with a pharyngeal suction tube according to a second embodiment of the present invention.
  • Figure 6 is an enlarged view of a portion A in Figure 5;
  • FIG. 7 is a schematic structural view of another tracheal tube with a pharyngeal suction tube according to Embodiment 2 of the present invention.
  • Figure 8 is a schematic cross-sectional view of the C-C surface of Figure 7;
  • Fig. 9 is an enlarged view of a portion D in Fig. 7.
  • a tracheal catheter body 101 a first irrigation tube 102; a pharyngeal suction tube 103;
  • Tip opening 108 distal opening 109; upper suction tube 110; upper suction tube opening 111;
  • the terms 'center', 'upper', 'down', 'left', 'right', 'vertical', 'horizontal', 'inside', 'outside' are in the middle.
  • the orientation or positional relationship of the 'indicative' is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that is conventionally placed when the invention product is used, for the convenience of describing the present invention and simplifying the description, rather than indicating It is to be understood that the device or elements referred to have a particular orientation, are constructed and operated in a particular orientation and are therefore not to be construed as limiting.
  • the terms 'first', 'second', 'third', etc. are used merely to distinguish a description, and are not to be construed as indicating or implying a relative importance.
  • the terms 'set', 'installed', 'connected', and 'connected' should be understood broadly, for example, as a fixed connection, unless explicitly stated and defined. It can also be a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be internal communication between the two elements.
  • the specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.
  • the present embodiment provides an endotracheal tube with a pharyngeal suction tube 103, which includes a tracheal tube body 101 and a pharyngeal suction tube 103 for sucking the patient's pharyngeal secretions, a tracheal tube
  • the body 101 is integrally formed with the pharyngeal suction tube 103, and the pharyngeal suction tube 103 is connected to the outer wall of the tracheal tube body 101 and fixed to the rear of the tracheal tube body 101 (referring to the patient's supine position, and successfully placed after the tracheal tube is fixed. Position, head is up, feet are down, nose is front, pillow is back).
  • the diameter of the pharyngeal suction tube is equivalent to the diameter of the suction tube F16, which is about 5.33 mm.
  • the main body of the tracheal tube is indistinguishable from the tracheal tube commonly used in clinical practice.
  • the tracheal tube body 101 and the end of the tracheal tube body 101 are provided with an air bag 106 and an air bag inflating tube 104 for injecting gas into the air bag.
  • the tracheal tube body 101 is provided with a tip opening 108, and a side wall opening 107 is disposed adjacent to a side wall of the tracheal tube body 101 at the tip opening 108; the tracheal tube body 101 is further provided with an in-tank suction tube 110 on one end of the capsule
  • the suction tube opening 111 is adjacent to the balloon 106, and the tracheal tube body 101 is marked with a scale.
  • a pharyngeal suction tube 103 is provided on the endotracheal tube, and the pharyngeal suction tube 103 is used to absorb secretions accumulated by the patient's pharyngeal floor.
  • the tracheal tube body 101 enters the trachea of the patient, and the pharyngeal suction tube 103 is also inserted into the throat and throat of the patient, so that the pharyngeal suction tube 103 can be kept indwelled during the indwelling of the tracheal tube.
  • the physician can draw secretions through the distal opening 109 of the pharyngeal suction tube 103 as needed.
  • the pharyngeal suction tube 103 Since the pharyngeal suction tube 103 is always left in the throat of the patient, it is not necessary to frequently enter and exit the pharynx by the suction tube to attract the patient, thereby reducing the pain and mucous membrane damage caused to the patient.
  • One end of the pharyngeal suction tube 103 is located adjacent to the baffle to absorb the secretion of the pharynx, and the pharyngeal suction tube is separated from the tracheal tube body by 3.5 cm below the incisor line with the endotracheal tube body, and the extension tube is extended.
  • the patient has an external and external hose connector.
  • the pharyngeal suction tube 103 is separated from the tracheal tube body 101 at a distance of 3.5 cm below the incisor line, and the pharyngeal suction tube 103 and the tracheal tube body 101 are relatively independent in the vicinity of the incisor line, which is more convenient for connection of various devices and trachea.
  • the fixation of the catheter body 101 prevents the pharyngeal suction tube 103 and the tracheal tube body 101 from joining together at the incisor line position to affect the normal fixation of the tracheal tube body 101.
  • the distal opening 109 of the pharyngeal suction tube 103 shown in Fig. 2 is too far from the posterior pharyngeal wall, and it is difficult to effectively absorb a small amount of accumulated pharyngeal secretion in the case of a patient's conventional 30-degree supine supine position.
  • the first portion of the pharyngeal suction tube 103 adjacent to the baffle is bent away from the tracheal tube body 101 to form a front fold portion 201.
  • the front folded portion 201 is perpendicular to the tracheal tube body 101, and the front folded portion is The distance between the port and the tracheal tube body is 1.2 cm, and the end of the front fold portion 201 is placed at the horizontal line of the baffle.
  • the patient looks up at 30 degrees in the supine position, and the front fold 201 points vertically to the patient.
  • the posterior pharyngeal wall, the suction tube port will naturally be near the lowest point of the pharyngeal floor, and the secretions will be cleared more thoroughly.
  • the opening is likely to cause adsorption damage to the mucosa through the distal end opening 109 provided in the front folded portion.
  • the port of the front folded portion 201 is closed, that is, the distal opening 109 is closed, and the opening is disposed at the side wall of the front folded portion, that is, two suction ports 202 are provided on the side wall of the front folded portion 201.
  • the two suction ports 202 are symmetrically distributed along the axial direction of the pharyngeal suction tube 103, and the two suction ports 202 are 3 mm from the end of the front folded portion 201.
  • the port of the front folded portion 201 does not adsorb the mucous membrane of the pharynx, and the pharyngeal suction tube 103 generates a suction action through the suction port 202 located at the side wall of the front folded portion 201 when the secretion is sucked out.
  • the suction port on the side wall of the front folding portion 201 has a certain distance from the mucosa and is blocked by the end portion of the front folding portion 201, so that the suction port 202 of the side wall does not attract the mucous membrane of the pharynx.
  • the attached action can avoid the adsorption damage of the mucosa.
  • the endotracheal tube with the pharyngeal suction tube 103 further includes a baffle 105 that is sleeved at one end of the tracheal tube body 101, the baffle is located above the balloon of the tracheal tube body, and the baffle 105 and the balloon 106 of the endotracheal tube The distance is 3.5cm, circular, larger than the tracheal tube body 101 about 0.35 ⁇ 0.40 Cm, thickness about 0.30 ⁇ 0.35cm.
  • the baffle can be made of soft silicone material to avoid damage to the mucous membrane caused by excessive hardness.
  • the baffle 105 prevents secretions in the oral cavity from flowing into the glottis along the tracheal tube body 101, reducing the occurrence of inhalation.
  • the catheter body is gently pushed forward so that the baffle 105 is lightly resting on the laryngeal door, indicating that the tracheal tube has been inserted into the designated position.
  • the end of the suction tube 103 is positioned at the position of the pharyngeal floor, so that the secretion accumulated by the pharyngeal floor is more effectively absorbed.
  • the endotracheal tube is also provided with a black marking line.
  • the black marker line is placed at the end of the tracheal tube body and is located on the median line of the front tube wall of the tracheal tube body. One end of the black marker line is located 3.0 cm in front of the incisor line.
  • the tracheal tube further includes a first irrigation tube 102, the first irrigation tube 102 is embedded in the front wall of the tracheal tube body 101, and the first irrigation tube 102 is 1.5 cm from the upper edge of the baffle.
  • An opening is provided outside the tracheal tube, and the first irrigation tube 102 exits the tooth line with the tracheal tube body 101. After cm, it is separated from the tracheal tube body 101, and the other end of the extension tube is externally attached to the syringe head.
  • the first irrigation tube 102 is used to flush the throat of the patient to keep it clean and moist.
  • the endotracheal tube with the pharyngeal suction tube 103 further includes a second irrigation tube 302 that is embedded in the front wall of the pharyngeal suction tube 103 that is connected to the tracheal tube body 101.
  • the opening at one end of the second flushing tube 302 is located in the lower rear lumen of the suction ports 202 on both sides, and is near the port of the pharyngeal suction tube 103 (ie, at the port of the front fold).
  • the second flushing tube 302 follows the pharyngeal suction tube 103 out of the tooth line 3.0 After cm, it is separated from the pharyngeal suction tube 103, and the extension tube is connected to the syringe sleeve.
  • the second irrigation tube 302 can flush the suction port and the lumen of the pharyngeal suction tube 103 to keep it open, and can also flush the patient's pharyngeal bottom to keep the pharyngeal
  • the endotracheal tube with the pharyngeal suction tube 103 further includes a third irrigation tube 301, the third irrigation tube 301 is embedded in the posterior tube wall of the pharyngeal suction tube 103, and the third irrigation tube 301 is successfully intubated at the end of the patient.
  • the third flushing tube 301 follows the pharyngeal suction tube 103 out of the tooth line 3.0 After cm, it is separated from the pharyngeal suction tube 103, and the extension tube is connected to the syringe sleeve.
  • the oral cavity of the patient can be cleaned by the third irrigation tube 301 to prevent the occurrence of coagulation of secretions in the oral cavity.
  • the tracheal tube is also provided with a passage for the gastric tube.
  • the channel is directly used for gastric tube intubation, and the gastric tube enters the patient's esophagus through the channel.
  • the endotracheal tube includes a silicone membrane 402, which is integrally formed with the tracheal tube body 101 and the pharyngeal suction tube 103, and the silicone membrane 402 is connected to the outer side wall of the pharyngeal suction tube 103 and the outer side wall of the tracheal tube body 101, respectively.
  • the silicone membrane 402, the outer side wall of the pharyngeal suction tube 103, and the outer side wall of the tracheal tube body 101 constitute a gastric tube tunnel through which the gastric tube passes, located beside the pharyngeal suction tube, behind the tracheal tube body, and the tunnel cavity
  • the size is sufficient for the passage of a conventional stomach tube.
  • the opening at one end of the stomach tube tunnel is 4 cm from the baffle and the opening at the other end of the stomach tube tunnel extends out of the patient's mouth.
  • the opening of the stomach tube tunnel adjacent to the entrance of the esophagus of the patient is inclined so that the patient's tip is directed toward the esophageal opening in the 30° lying position, making the insertion of the stomach tube easier.
  • the tracheal tube further includes a humidity sensing device including a connecting wire 401 and a humidity sensing electrode 403.
  • the humidity sensing electrode 403 is disposed on the side wall of the port of the front folding portion 201.
  • One end of the connecting wire 401 is electrically connected to the humidity sensing electrode 403, and the other end of the connecting wire 401 extends out of the patient's mouth, and the extension wire is externally connected to the power connector.
  • the humidity sensing electrode 403 triggers an alarm and feeds it back to the external device, issues an alarm to inform the caregiver or directly activates the suction device to achieve the on-demand suction of the pharyngeal secretion.
  • Both the humidity sensing electrode 403 and the suction device are commercially available devices, which will not be described in detail in this embodiment.
  • the tracheal catheter body and the pharyngeal suction tube are integrally formed, and the pharyngeal suction tube is placed at the same time as the tracheal intubation, so that the pharyngeal suction catheter stays in the patient's pharyngeal bottom for a long time, and the pressing of the posterior pharyngeal wall is also avoided.
  • the pharyngeal suction tube can stay at the bottom of the pharynx for a long time, the suction can be flexibly and easily, and the discomfort of the patient when the sputum suction is repeatedly used in the conventional use of the suction tube can be reduced, and the mucosal damage and cross infection of the patient's mouth and pharynx can be avoided.
  • the front end of the pharyngeal suction tube that is, the front fold portion is bent downward and backward, the end of the pharyngeal suction tube is perpendicular to the tracheal tube body, and the distance between the port and the tracheal tube body is 1.2 cm.
  • the port of the front folding portion is closed, and the suction port is opened at the side wall, and the suction port is away from the end portion of the front folding portion by a certain distance, thereby effectively reducing the adsorption of the mucus by the suction port during the vacuum suction, thereby avoiding the attraction of secretions. Mucosal damage caused by bleeding problems.
  • the front wall of the tracheal tube is provided with a flushing tube, and the pharyngeal suction tube is designed with two flushing tubes.
  • the three irrigation tubes can be used together to keep the pharyngeal suction tube unobstructed, which is good for sucking out secretions. At the same time, the patient's mouth and throat are kept clean, the mucous membranes are kept moist, and secretions are prevented from sticking.
  • the setting of the irrigation tube can also perform flushing and decontamination treatment around the glottis (including the gap on the capsule) and the oropharynx while maintaining the suction state.
  • a flexible rubber baffle is arranged adjacent to the air bag of the tracheal tube body to prevent oral secretions from flowing into the glottis along the tracheal tube body.
  • the position of the suction port of the pharyngeal suction tube at the bottom of the pharynx can also be located.
  • the design of the gastric tube tunnel makes the insertion of the gastric tube easier, and the stomach tube does not need to be suspended in the nostril, thereby reducing nasal discomfort, mucosal damage bleeding and sinusitis.

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Abstract

一种带咽部吸引管的气管导管，属于医疗设备技术领域。该气管导管包括一体成型的气管导管体（101）和用于吸取患者咽部分泌物的咽部吸引管（103），咽部吸引管（103）与气管导管体（101）的侧壁固定连接。经口气管插管时，在将气管导管插入的同时也将咽部吸引管（103）引入，咽部吸引管（103）可以在患者的咽部长时间留置，避免了常规使用吸痰管反复进出咽部吸引的麻烦，以及对患者造成不适或者伤害，减小了护理的难度。气管导管体（101）装设挡板（105），咽部吸引管（103）前端弯曲处理，端口封闭、开设侧吸引孔及导管附设三根冲洗管，提高咽部分泌物的清除效率的同时，使口咽部粘膜保持润湿、干净，又减少了使用常规吸痰管吸引的副作用。此外，设置胃管通过隧道，使插胃管简单易行。

Description

带咽部吸引管的气管导管
技术领域
本发明涉及医疗设备技术领域，具体而言，涉及一种带咽部吸引管的气管导管。
背景技术
气管插管接呼吸机辅助呼吸是治疗呼吸衰竭、严重心衰及手术麻醉中使用的主要临床措施，但气管插管常引发呼吸机相关性肺炎，从而使患者住院时间延长、费用增加，甚至可能导致死亡率的增加。呼吸机相关性肺炎往往为多重耐药菌感染，已成为世纪性医学难题。引起气管插管后呼吸机相关性肺炎的发生原因很多，其中口咽鼻分泌物的吸入是最主要因素，预防口咽鼻分泌物进入肺部，可明显降低呼吸机相关性肺炎的发生率。
目前临床主要采取的措施有：（1）声门下定期或持续吸引；　（2）按需或定期用吸痰管吸引口咽分泌物；（3）定期口咽部清洁；（4）定期监测气囊压力，保持压力在20~30cm水柱水平。但是，这些措施的效果不佳，不能有效地阻止咽部分泌物进入肺部，从而导致呼吸机相关性肺炎发生率仍居高不下。目前临床常规使用的吸痰管吸引容易造成粘膜的损伤、出血，清理效果差。此外，现有的措施操作相当繁琐，护理工作量大。
发明内容
本发明的目的在于提供一种带咽部吸引管的气管导管，使吸引操作简单高效，减少常规使用吸痰管吸引操作所致的付作用，大大提高咽部分泌物的清除效率，达到减少呼吸机相关性肺炎发生的目的。
本发明是这样实现的：
一种带咽部吸引管的气管导管，包括气管导管体和用于吸除患者咽部分泌物的咽部吸引管，所述气管导管体与所述咽部吸引管一体成型，所述咽部吸引管与所述气管导管体的外壁连接、且固定于所述气管导管体的正后方。
作为优选的方案，还包括：挡板，所述挡板套设于所述气管导管体的一端，所述挡板位于所述气管导管体的气囊上方3.5cm处。
挡板具有以下作用：一方面，杜绝口腔分泌物沿气管导管体流入患者的声门；另一方面，挡板还具有定位的功能，当气管导管成功插入声门时，向前轻推导管体，使挡板轻靠在喉门上，并转动导管体，使所述咽部吸引管前折部垂直指向咽后壁，从而将咽部吸引管的管口位置限定于患者的咽底位置，以便通过咽部吸引管更彻底吸引咽部积液。
作为优选的方案，还包括：第一冲洗管，所述第一冲洗管嵌设于所述气管导管体的前壁内，所述第一冲洗管一端于距离所述挡板1.5cm处向所述气管导管体外设置有开口，所述第一冲洗管随气管导管体出门齿线3.0 cm后与所述气管导管体分离，延长管外接注射器套头。第一冲洗管用于对患者的喉咽部进行冲洗。
作为优选的方案，所述咽部吸引管的一端位于邻近所述挡板处，所述咽部吸引管随所述气管导管体于距门齿线下方3.5cm处与所述气管导管体分离，延长管外接胶管接头。方便于连接吸引设备，便于气管导管的固定。
作为优选的方案，所述咽部吸引管邻近所述挡板的一端背离所述气管导管体弧形向下向后弯折形成前折部，所述前折部与所述气管导管体垂直，端口与气管导管体的距离为1.2cm，所述前折部端部与所述挡板的水平线平齐。咽部吸引管设置有前折部，当气管导管成功插入患者的气管并固定后，前折部使咽部吸引管端口与患者咽后壁粘膜更接近，使吸引更干净。
作为优选的方案，所述前折部的端口封闭，所述前折部的侧壁设置有两个吸引口，所述两个吸引口沿所述咽部吸引管的轴向对称分布，两个所述吸引口均距离所述前折部的端部3mm。咽部吸引管端部的上述设计，使吸引口与粘膜保持距离，从而可以避免或减少吸引口对患者咽部粘膜的吸附损伤，避免出现粘膜出血的问题。
作为优选的方案，还包括：第二冲洗管，所述第二冲洗管嵌于与所述气管导管体相连接的所述咽部吸引管的前壁内，所述第二冲洗管一端的开口置于两侧吸引口的下后方的管腔内、且靠近所述咽部吸引管的端口处，第二冲洗管随所述咽部吸引管出门齿线3.0 cm后与咽部吸引管分离，延长管外接注射器套头。第二冲洗管除可对咽部吸引管的吸引口及管腔冲洗以保持其通畅外，还可实现对咽底部粘膜进行冲洗。
作为优选的方案，还包括：湿度感应传感装置，所述湿度感应传感装置包括连接导线和湿度感应电极，所述湿度感应电极设置于所述前折部端口旁的侧壁，所述连接导线的一端与所述湿度感应电极电连接，所述连接导线的另一端伸出患者口腔外。湿度感应电极可以对患者咽部的环境湿度进行感应，当患者咽部积蓄有一定量的分泌液时，湿度感应电极将该信息传递给外部设备，以便医生可以及时吸引分泌物，以实现咽部分泌物按需吸引，从而减少咽部分泌物溢入声门，达到减少呼吸机相关性肺炎的目的。
作为优选的方案，还包括：第三冲洗管，所述第三冲洗管嵌设于所述咽部吸引管的后管壁内，所述第三冲洗管的一端于病人成功插管后正对硬腭顶部处并向后管壁外设置有开口，所述第三冲洗管随咽吸引管出门齿线3.0 cm后与所述咽部吸引管分离，延长管外接注射器套头。利用第三吸引管可以对患者的口腔进行冲洗，保持口腔内的清洁，防止口腔细菌滋生。
作为优选的方案，还包括与所述气管导管体、所述咽部吸引管一体成型的硅胶膜，所述硅胶膜分别与所述咽部吸引管的外侧壁、所述气管导管体的外侧壁连接，所述硅胶膜、所述咽部吸引管的外侧壁以及所述气管导管体的外侧壁构成供胃管穿过的胃管隧道，所述硅胶膜位于所述咽部吸引管旁、所述气管导管体的后方，所述胃管隧道的隧道腔大小足够常规胃管通过，所述胃管隧道一端的开口距离所述挡板4.0 cm，所述胃管隧道另一端的开口伸出患者口腔外。气管导管设置胃管隧道，以便患者气管导管成功后，通过所述胃管隧道插入胃管更容易，胃管不需悬挂于鼻腔中，以减少鼻腔不适、粘膜损伤出血、鼻窦炎的发生。
本发明的有益效果：
本发明提供了一种带咽部吸引管的气管导管，该气管导管包括一体成型的气管导管体和咽部吸引管，在进行气管导管的插入时，咽部吸引管也同时插入，气管导管留置期间，实现咽部吸引管的长时间定位留置，更有效地实现了患者咽部分泌物的吸引清除，大幅度减少咽底部分泌物溢入声门或者沿气管导管流入声门的问题。通过咽部吸引管管端弯折、端口封闭、侧壁吸引口以及冲洗管的设置，提高咽部分泌物清除效率的同时，又减少常规吸引的付作用，保持口咽部清洁干净、粘膜湿润。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，应当理解，以下附图仅示出了本发明的某些实施例，因此不应被看作是对范围的限定
图1为目前临床常用的气管导管的结构示意图；
图2为本发明实施例一提供的带有咽部吸引管的气管导管的结构示意图；
图3为图2中B-B面的断面示意图。
图4为本发明实施例一提供的带有咽部吸引管的气管导管中具有前折部的咽部吸引管的结构示意图；
图5为本发明实施例二提供的带有咽部吸引管的气管导管的结构示意图；
图6为图5中A部放大图；
图7为本发明实施例二提供的另一种带有咽部吸引管的气管导管的结构示意图；
图8为图7中C-C面的断面示意图；
图9为图7中D部放大图。
附图标记说明
气管导管体101；第一冲洗管102；咽部吸引管103；
气囊注气管104；挡板105；气囊106；侧壁开口107；
尖端开口108；远端开口109；囊上吸引管110；囊上吸引管开口111；
前折部201；吸引口202；第三冲洗管301，第二冲洗管302；
连接导线401；硅胶膜402；湿度感应电极403。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。通常在此处附图中描述和示出的本发明实施例的组件可以以各种不同的配置来布置和设计。因此，以下对在附图中提供的本发明的实施例的详细描述并非旨在限制要求保护的本发明的范围，而是仅仅表示本发明的选定实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性设计所获得的所有其他实施例，都属于本发明保护的范围。
应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步定义和解释。
在本发明的描述中，需要说明的是，术语'中心'、'上'、'下'、'左'、'右'、'垂直'、'水平'、'内'、'外''正中'等指示的方位或位置关系为基于附图所示的方位或位置关系，或者是该发明产品使用时惯常摆放的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语'第一'、'第二'、'第三'等仅用于区分描述，而不能理解为指示或暗示相对重要性。
在本发明的描述中，还需要说明的是，除非另有明确的规定和限定，术语'设置'、'安装'、'相连'、'连接'应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
实施例一
参阅图1至图6，本实施例提供了一种带咽部吸引管103的气管导管，该气管导管包括气管导管体101和用于吸取患者咽部分泌物的咽部吸引管103，气管导管体101与咽部吸引管103一体成型，咽部吸引管103与气管导管体101的外壁连接、且固定于气管导管体101的正后方（指病人仰卧位，成功插入气管导管固定后的摆放位置，头为上，脚为下，鼻为前，枕为后）。本实施例中，咽部吸引管的直径与吸痰管F16的直径相当，约为5.33mm。
气管导管的主体与目前临床常用的气管导管无差别，如图1所示，气管导管体101，气管导管体101的一端设置有气囊106及用于给气囊注入气体的气囊注气管104，弧形气管导管体101设置有尖端开口108，邻近该尖端开口108处的气管导管体101的侧壁设置有侧壁开口107；气管导管体101还设置有囊上吸引管110，其一端内的囊上吸引管开口111邻近气囊106,气管导管体101标有刻度标识。
在气管导管上设置咽部吸引管103，利用该咽部吸引管103将患者咽底积聚的分泌物吸除。经口气管插管时，气管导管体101进入患者的气管内，同时将咽部吸引管103也插入了患者的喉咽部，如此，在气管导管留置期间，可以保持咽部吸引管103一直留置于患者的喉咽内，医生可以根据需要通过咽部吸引管103的远端开口109来吸取分泌物。由于咽部吸引管103一直留置于患者的喉咽内，不需要按目前常规用吸痰管频繁进出咽部进行吸引，减少给患者带来的痛苦及粘膜损伤出血。
咽部吸引管103的一端位于邻近挡板处，以便对咽部的分泌物进行吸除，咽部吸引管随气管导管体于距门齿线下方3.5cm处与气管导管体分离，延长管伸出患者口腔外外接胶管接头。咽部吸引管103于门齿线下方3.5cm处与气管导管体101分离，则咽部吸引管103与气管导管体101之间于门齿线附近处相对独立，可以更方便于各个设备的连接和气管导管体101的固定，防止咽部吸引管103与气管导管体101在门齿线位置仍联合在一起影响气管导管体101的正常固定。
图2所示咽部吸引管103的远端开口109，距离咽后壁太远，在患者常规30度抬头仰卧位情况下，难以有效吸除小量积聚的咽部分泌物，因此，较佳地，采取使咽部吸引管103邻近挡板的一端背离气管导管体101弧形向下向后弯折形成前折部201的设计，前折部201与气管导管体101垂直，前折部的端口与气管导管体的距离1.2cm，前折部201的端部置于挡板的水平线平齐位置，当气管导管插管成功后，病人抬头30度仰卧位，前折部201垂直指向患者的咽后壁，吸引管端口将自然靠近咽底部最低处，清除分泌物更彻底。此外，由于前折部201的端部（即远端开口109）贴近患者的咽部粘膜，通过设置于前折部的远端开口109吸除分泌物时，开口容易对粘膜造成吸附损伤。基于上述情况，前折部201的端口封闭，即远端开口109封闭处理，而将开口设置在前折部的侧管壁，也就是在前折部201的侧壁设置有两个吸引口202，两个吸引口202沿咽部吸引管103的轴向的对称分布，两个吸引口202距离前折部201的端部3mm。如此，吸引分泌物时，前折部201的端口不会对咽部的粘膜产生吸附作用，咽部吸引管103吸除分泌物时通过位于前折部201侧壁的吸引口202产生抽吸动作进行，而位于前折部201侧壁的吸引口与粘膜之间具有一定的距离，并被前折部201的端部阻挡，故侧壁的吸引口202也不会对咽部的粘膜产生吸引附的作用，从而可以避免粘膜的吸附损伤。
优选地，带咽部吸引管103的气管导管还包括：挡板，挡板105套设于气管导管体101的一端，挡板位于气管导管体的气囊上方，挡板105与气管导管的气囊106的距离为3.5cm，圆环形，大于气管导管体101约0.35~0.40 cm，厚度约0.30~0.35cm。挡板可采用柔软的硅胶材质制作而成，避免其硬度过大而对粘膜造成损伤。当气管导管成功插入后，挡板105可以防止口腔中的分泌物沿气管导管体101流入声门，减少吸入的发生。另外，当气管导管成功插入声门后，向前轻推导管体，使挡板105轻靠在喉门上，则表明气管导管已经插入到指定位置。此时，转动管体，使咽部吸引管前折部垂直指向咽后壁，气囊注气调整压力为20~30cm左右以初步固定插管深度，这样就可将咽部吸引管定位，使咽部吸引管103的端部定位于咽底的位置，从而更有效地对咽底积聚的分泌物进行较彻底吸除。优选地，为了便于控制气管导管转动的角度，气管导管还设置有黑色标志线。黑色标志线设置于气管导管体的末段，且位于气管导管体前管壁的正中线上，黑色标志线的一端位于门齿线前3.0cm处。当气管导管成功插入声门时，向前轻推导管体，使挡板轻靠在喉门上，并转动导管体，使所述咽部吸引管前折部垂直指向咽后壁，从而将咽部吸引管的管口位置限定于患者的咽底位置，气囊注气后气管导管体初步固定，最后于口周固定时，使标志线位于前正中方向，并记录插管深度。
为了保持患者咽部的清洁，气管导管还包括有第一冲洗管102，第一冲洗管102嵌设于气管导管体101的前壁内，第一冲洗管102一端于距离挡板上缘1.5cm处向气管导管体外设置开口，第一冲洗管102随气管导管体101出门齿线3.0 cm后与气管导管体101分离，延长管另一端外接注射器套头。第一冲洗管102用于对患者的喉咽部进行冲洗，使其保持干净润湿。
实施例二
参阅图7至图9，本实施例与实施例一的主要区别在于：
带咽部吸引管103的气管导管还包括：第二冲洗管302，第二冲洗管302嵌设于与气管导管体101相连接的咽部吸引管103的前壁内。第二冲洗管302一端的开口位于两侧吸引口202下后方管腔内，且靠近咽部吸引管103的端口处（即前折部的端口处）。第二冲洗管302随咽部吸引管103出门齿线3.0 cm后与咽部吸引管103分离，延长管外接注射器套头。第二冲洗管302可实现对咽部吸引管103的吸引口及管腔进行冲洗，使其保持通畅，同时还可以对患者的咽底部进行冲洗，保持咽底部的清洁。
进一步地，带咽部吸引管103的气管导管还包括第三冲洗管301，第三冲洗管301嵌设于咽部吸引管103的后管壁内，第三冲洗管301一端于病人成功插管后正对硬腭顶部处并向后管壁外开口，第三冲洗管301随咽部吸引管103出门齿线3.0 cm后与咽部吸引管103分离，延长管外接注射器套头。通过第三冲洗管301可以对患者的口腔内进行清洗，避免口腔内的分泌物凝结等情况的发生。
为了方便于对患者进行胃管插管，气管导管还设置有一个供胃管通行的通道，胃管插管时，直接利用该通道进行胃管插管，胃管通过该通道进入患者食道。具体地，气管导管包括硅胶膜402，硅胶膜402与气管导管体101、咽部吸引管103一体成型，硅胶膜402分别与咽部吸引管103的外侧壁、气管导管体101的外侧壁连接。硅胶膜402、咽部吸引管103的外侧壁以及气管导管体101的外侧壁构成供胃管穿过的胃管隧道，位于所述咽部吸引管旁、所述气管导管体的后方，隧道腔大小足够常规胃管通过。优选地，胃管隧道一端的开口距离挡板4cm，胃管隧道另一端的开口伸出患者口腔外。进一步地，胃管隧道邻近患者食道入口处的开口采用倾斜设计，以便病人在30°卧位状态下，该开口尖端指向食道入口，使胃管的插入更加的容易。
由于人体口咽鼻时刻在产生分泌物，因此，每隔一段时间后需要进行分泌物的吸引，防止分泌物积聚。由此，气管导管还包括有湿度感应传感装置，湿度感应传感装置包括连接导线401和湿度感应电极403。其中，湿度感应电极403设置于前折部201端口旁的侧壁，连接导线401的一端与湿度感应电极403电连接，连接导线401的另一端伸出患者口腔外，延长线外接电源接头。当咽部分泌物聚集浸湿电极时，湿度感应电极403触发报警，并将其反馈给外部设备，发出报警通知护理人员或直接启动吸引设备，以实现对咽部分泌物按需吸除。湿度感应电极403和吸引装置均为市售设备，本实施不对其作详述。
本发明提供的带咽部吸引管的气管导管具有以下优点：
1 、气管导管体和咽部吸引管的一体成型，气管插管的同时放置了咽部吸引管，实现了咽部吸引导管在患者咽底部长时间停留，同时还避免了压迫咽后壁的情况。由于咽部吸引管可长时间停留于咽底部，则能够灵活简易地进行吸引，减少常规使用吸痰管反复进出咽部吸引时患者的不适，避免患者口鼻咽的粘膜损伤出血及交叉感染。
2 、咽部吸引管的前端，即前折部向下向后弯曲，咽部吸引管端部与气管导管体垂直，端口与气管导管体的距离1.2cm的设计处理，插管成功后，病人抬头30度仰卧位，吸引管将自然靠近咽底部最低处，清除分泌物更彻底。此外，前折部的端口封闭，而在侧壁开设吸引口，吸引口远离前折部的端部一定的距离，可有效减少负压吸引时吸引口吸附粘膜的情况，从而可避免吸引分泌物时引起的粘膜损伤出血问题。
3 、气管导管的前壁装设有一根冲洗管，咽部吸引管设计有两根冲洗管。三根冲洗管配合使用，可以保持咽部吸引管的通畅，有利于吸除分泌物，同时还使患者的口腔、咽部保持干净，粘膜保持湿润，防止分泌物粘结。冲洗管的设置还可以在保持吸引状态下，对声门周围（包括囊上间隙）及口咽进行冲洗、去污处理。
4 、气管导管体邻近气囊处设有柔软胶挡板，以防止口腔分泌物沿气管导管体流入声门。此外，还可定位咽部吸引管的吸引口于咽底部的位置。
5 、通过定时开关或装设湿度感应设备，实现自动定时或按需自动吸引，大大提高咽分泌物的清除效率，大幅度减少护理工作量。
6 、胃管隧道的设计，使胃管的插入更容易，胃管不需悬挂于鼻孔中，减少鼻腔不适、粘膜损伤出血和鼻窦炎的发生。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (1)

  1. 1. 一种带咽部吸引管的气管导管，其特征在于，包括气管导管体和用于吸除患者咽部分泌物的咽部吸引管，所述气管导管体与所述咽部吸引管一体成型，所述咽部吸引管与所述气管导管体的外壁连接、且固定于所述气管导管体的正后方。
    2. 根据权利要求1所述的带咽部吸引管的气管导管，其特征在于，还包括：挡板，所述挡板套设于所述气管导管体的一端，所述挡板位于所述气管导管体的气囊上方3.5cm处。
    3. 根据权利要求2所述的带咽部吸引管的气管导管，其特征在于，还包括：第一冲洗管，所述第一冲洗管嵌设于所述气管导管体的前壁内，所述第一冲洗管一端于距离所述挡板1.5cm处向所述气管导管体管外设置有开口，所述第一冲洗管随所述气管导管体出门齿线3.0 cm后与所述气管导管体分离，延长管外接注射器套头。
    4. 根据权利要求1所述的带咽部吸引管的气管导管，其特征在于，所述咽部吸引管的一端位于邻近所述挡板处，所述咽部吸引管随气管导管体于距门齿线下方3.5cm处与所述气管导管体分离，延长管外置胶管接头。
    5. 根据权利要求2至4之一所述的带咽部吸引管的气管导管，其特征在于，所述咽部吸引管邻近所述挡板的一端背离所述气管导管体弧形向下向后弯折形成前折部，所述前折部与所述气管导管体垂直，所述前折部的端口与气管导管体的距离为1.2cm，所述前折部的端部与所述挡板的水平线平齐。
    6. 根据权利要求5所述的带咽部吸引管的气管导管，其特征在于，所述前折部的端口封闭，所述前折部的侧壁设置有两个吸引口，所述两个吸引口沿所述咽部吸引管的轴向对称分布，两个所述吸引口均距离所述前折部的端部3mm。
    7. 根据权利要求6所述的带咽部吸引管的气管导管，其特征在于，还包括：第二冲洗管，所述第二冲洗管嵌于与所述气管导管体相连接的所述咽部吸引管的前壁内，所述第二冲洗管一端的开口置于两侧吸引口的下后方的管腔内、且靠近所述咽部吸引管的端口处，第二冲洗管随所述咽部吸引管出门齿线3.0 cm后与咽部吸引管分离，延长管外接注射器套头。
    8. 根据权利要求6所述的带咽部吸引管的气管导管，其特征在于，还包括：湿度感应传感装置，所述湿度感应传感装置包括连接导线和湿度感应电极，所述湿度感应电极设置于所述前折部端口旁的侧壁，所述连接导线的一端与所述湿度感应电极电连接，所述连接导线的另一端伸出患者口腔外。
    9. 根据权利要求1至4之一所述的带咽部吸引管的气管导管，其特征在于，还包括：第三冲洗管，所述第三冲洗管嵌设于所述咽部吸引管的后管壁内，所述第三冲洗管的一端于病人成功插管后正对硬腭顶部处并向后管壁外设置有开口，所述第三冲洗管随咽吸引管出门齿线3.0 cm后与所述咽部吸引管分离，延长管外接注射器套头。
    10. 根据权利要求1所述的带咽部吸引管的气管导管，其特征在于，还包括与所述气管导管体、所述咽部吸引管一体成型的硅胶膜，所述硅胶膜分别与所述咽部吸引管的外侧壁、所述气管导管体的外侧壁连接，所述硅胶膜、所述咽部吸引管的外侧壁以及所述气管导管体的外侧壁构成供胃管穿过的胃管隧道，所述硅胶膜位于所述咽部吸引管旁、所述气管导管体的后方，所述胃管隧道的隧道腔大小足够常规胃管通过，所述胃管隧道一端的开口距离所述挡板4.0cm，所述胃管隧道另一端的开口伸出患者口腔外。
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