Tube-resistant trachea cannula device

By designing a tracheal intubation device containing a balloon assembly, a drug delivery assembly and a suction ring assembly, the problems of tracheal intubation intolerance and lower respiratory tract infection are solved, and airway protection and tolerance are improved, the equipment structure is simplified and the medical burden is reduced.

CN119896785APending Publication Date: 2025-04-29THE SECOND HOSPITAL OF HEBEI MEDICAL UNIV
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Patent Information

Application Number
CN202510150306.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-11
Publication Date
2025-04-29

AI Technical Summary

Technical Problem

Existing tracheal intubation devices lead to intolerance when used in awake patients, and long-term use can easily cause lower respiratory tract infection. Most of the existing devices are simple and do not have airway protection functions or are complex in equipment, and the medical burden is heavy.

Method used

A resistant tubular tracheal intubation device is designed, including an outer tube, an inner tube, an airbag assembly, a drug delivery assembly and a suction ring assembly. The airway is enclosed through the inflatable airbag assembly, and the drug delivery assembly infiltrates the drug liquid to the tracheal wall, and the suction ring assembly attracts fluid accumulation, achieving airway protection and tolerance improvement.

Benefits of technology

This device reduces systemic medication dosage, reduces medical costs, improves patients' tolerance to tracheal intubation, and effectively reduces the risk of lower respiratory tract infection, simplifies the equipment structure, and reduces the medical burden.

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Abstract

The present invention relates to a tube-resistant tracheal intubation device, comprising: an outer tube, one end of which is an imbedding end and the other end of which is an operating end; the inner tube penetrates through the outer tube, one end of the inner tube protrudes out of the operation end of the outer tube to be connected with breathing machine equipment, and the middle of the other end of the inner tube is connected with the imbedding end of the outer tube; the air bag assembly is arranged on the outer wall of the outer tube and used for being fixed in the trachea of the patient after being inflated; a medicine feeding assembly is arranged on the air bag assembly and used for infiltrating the tracheal wall of a patient with liquid medicine so as to increase the tolerance of the patient to the intubation device; the suction ring assembly is arranged on the outer wall of the outer tube and corresponds to the air bag assembly; a pipe passing gap is formed between the outer pipe and the inner pipe, and the pipeline of the air bag assembly and the pipeline of the suction ring assembly are arranged in the pipe passing gap. The operation of infiltrating the inner wall of the trachea of a patient with sedative and analgesic liquid medicine can be performed through the administration assembly arranged on the air bag assembly, so that the dosage of systemic administration is reduced, and the medical cost is reduced. And the comfort degree that the patient can be awakened to tolerate the trachea cannula is improved.
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Description

Technical Field

[0001] The invention relates to the technical field of medical auxiliary appliances, in particular to a tube-resistant endotracheal intubation device. Background Art

[0002] Awake endotracheal intubation and ventilator-assisted ventilation can cause patient intolerance. The conventional treatment method is to use large doses of analgesics and sedatives, but this method can easily affect the patient's circulation, such as causing hypotension and then leading to low perfusion of important organs such as the heart, brain, and kidneys, especially for patients with cardiovascular and cerebrovascular abnormalities. At the same time, long-term use of opioid analgesics may cause related side effects such as nausea, vomiting, and withdrawal reactions. Long-term sedation and analgesia can also affect the patient's cognitive function. Therefore, the treatment of tolerance to endotracheal intubation requires a breakthrough in conventional methods. In addition, oral secretions or gastric contents from prolonged endotracheal intubation may mistakenly enter the glottis and cause lower respiratory tract infection. In this case, airway protection and oral care after endotracheal intubation are particularly important. However, oral care increases the intolerance to endotracheal intubation and the possibility of lower respiratory tract infection. Daily oral care can cause great stress to patients, or the use of drugs before the operation may increase the possibility of circulatory fluctuations and increase the burden on medical care. For this reason, endotracheal intubation resistance treatment and airway protection are particularly important. The existing devices are simple and do not have the function of airway protection, or the equipment is complex and the medical burden is heavy. There is an urgent need to streamline equipment costs and solve the problem of patient intubation tolerance and facilitate clinical work. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a tube-resistant endotracheal intubation device.

[0004] To solve the above problems, the technical solution adopted by the present invention is: A tube-resistant endotracheal intubation device, comprising: An outer tube, one end of which is an insertion end and the other end is an operation end; An inner tube is inserted into the outer tube, one end of which protrudes from the operating end of the outer tube and is connected to the ventilator device, and the other end of which protrudes from the insertion end and is connected to the insertion end of the outer tube; An airbag assembly is arranged on the outer wall of the outer tube and is used to seal the patient's airway after being inflated; a drug delivery assembly is arranged on the airbag assembly and is used to infiltrate the patient's tracheal wall with drug solution to increase the patient's tolerance to the intubation device; A suction ring assembly, arranged on the outer wall of the outer tube and corresponding to the airbag assembly, for sucking the liquid accumulated above the airbag assembly; A tube gap is formed between the outer tube and the inner tube, and the pipeline of the airbag assembly and the pipeline of the attraction ring assembly are arranged in the tube gap.

[0005] As an embodiment of the present invention, the airbag assembly includes a second airbag arranged in the middle of the outer tube and a first airbag arranged near the insertion end, the second airbag is connected with a second inflation tube, the first airbag is connected with a first inflation tube, and the first inflation tube and the second inflation tube pass through the tube gap and out of the operating end; The suction ring assembly includes a first suction ring arranged on the first airbag and a second suction ring arranged on the second airbag, the first suction ring is connected to a first suction tube, the second suction ring is connected to a second suction tube, and the first suction tube and the second suction tube pass through the tube gap and out of the operating end.

[0006] As an embodiment of the present invention, the first airbag is in a shuttle shape after being inflated, and is provided with an annular groove portion, the groove portion is provided with a liquid hole penetrating the first airbag, the inner end of the liquid hole is connected to a liquid supply tube, and the liquid supply tube passes through the tube gap and out of the operating end; The first airbag is covered with a medication bag cover, and the drug solution passes through the medication bag cover after passing through the liquid feeding tube, the liquid hole and the groove part in sequence.

[0007] As an embodiment of the present invention, a plurality of holes are arranged on the medication pouch, and the drug solution passes through the medication pouch through the plurality of holes and then infiltrates the patient's tracheal inner wall mucosa.

[0008] As an embodiment of the present invention, the first suction ring includes a suction ring body sleeved on the outer tube, an annular cavity provided in the suction ring body, and a plurality of suction holes provided in an annular array on the suction ring body, the suction holes are connected to the annular cavity, the annular cavity is connected to the first suction tube, and the first suction tube is connected to the negative pressure device; After the first airbag is inflated, the liquid accumulated on the upper part of the airbag is sucked out through the suction hole, the annular cavity and the first suction tube in sequence.

[0009] As an embodiment of the present invention, the second attraction ring has the same structure as the first attraction ring.

[0010] As an embodiment of the present invention, the second airbag is in an umbrella shape after being inflated, and is used to close the glottis.

[0011] As an embodiment of the present invention, it also includes an oral cleaning component for cleaning the patient's oral cavity; the oral cleaning component includes a long hard tube portion and a soft tube portion connected to the end of the hard tube portion, and the soft tube portion can be bent to form a U shape or an O shape, and then sleeved on the outer side of the operating end, and then the hard tube portion is driven to move so that the bent soft tube portion slides along the outer side of the operating end.

[0012] As an embodiment of the present invention, a plurality of liquid spray holes are arranged on the hose portion, and the liquid spray holes are connected to the cavity in the hose portion; The free end of the hard tube is connected to the drug injection mechanism; The oral cleaning liquid is injected into the hard tube part and the soft tube part in sequence through the liquid injection mechanism, and is sprayed out from the liquid spray hole to clean and care for the patient's oral cavity.

[0013] As an implementation mode of the present invention, the end of the first inflation tube is connected to the gas source equipment, and an air pressure indicator is connected and arranged adjacent to the gas source equipment.

[0014] The beneficial effects of adopting the above technical solution are: The cannula of the present invention comprises an inner tube and an outer tube, and a tube gap is formed between the two, which can be used to place and constrain the pipeline, making the overall structure of the cannula more compact, and the pipeline is neat and uncluttered during the operation. The drug delivery component arranged on the airbag component can be used to infiltrate the inner wall of the patient's trachea with sedative and analgesic liquid, thereby reducing the dosage of systemic medication and reducing medical costs. The comfort of the patient's awake tolerance to tracheal intubation is improved.

[0015] At the same time, the second air bag of the present application simply and effectively closes the glottis and isolates it from the oral cavity, reducing the infection caused by aspiration of oral secretions or oral care solution into the airway. Combined with the second suction ring, oral secretions or oral care solution can be easily attracted, reducing medical operations and reducing the incidence of oral infection and oral injury. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of an embodiment.

[0017] Figure 2 It is a structural schematic diagram of the embodiment from another angle.

[0018] Figure 3 It is a half-section structural schematic diagram of an embodiment.

[0019] Figure 4 yes Figure 3 Schematic diagram of the structure at A in the middle.

[0020] Figure 5It is a schematic diagram of the structure of the oral cleaning component of the embodiment away from the cannula.

[0021] Figure 6 Schematic diagram of the structure of the oral cleaning component of the embodiment.

[0022] Figure 7 Schematic diagram of the structure of the airbag assembly after inflation of the embodiment.

[0023] Figure 8 It is a schematic structural diagram of the embodiment after the first airbag is inflated and the medication bag sleeve is detached.

[0024] Fig. 9 It is a schematic diagram of the half-section structure of the first airbag after inflation and the drug delivery bag sleeve of the embodiment.

[0025] Wherein: 100 outer tube; 101 first suction ring; 102 second suction ring; 103 tube gap; 104 annular cavity; 105 suction hole; 200 inner tube; 300 first airbag; 301 airbag body; 302 groove portion; 303 liquid hole; 304 medication bag sleeve; 400 Second airbag; 500 hard tube part; 600 hose part; 601 liquid spray hole; 1. First inflation tube; 2. Liquid supply tube; 3. Second inflation tube; 4. First suction tube; 5. Second suction tube. DETAILED DESCRIPTION

[0026] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention is clearly and completely described below in conjunction with specific embodiments.

[0027] like Figures 1 to 9 A tube-resistant endotracheal intubation device is shown, comprising: The outer tube 100 has one end as an insertion end and the other end as an operation end. When in use, the insertion end is inserted into the patient's trachea, and one end of the operation end is used by medical staff to perform the operation. The inner tube 200 is inserted into the outer tube 100, one end of which protrudes from the operating end of the outer tube 100 and is connected to the ventilator device, and the other end of which protrudes from the insertion end and is connected to the insertion end of the outer tube 100, so that the end of the cannula of this embodiment inserted into the patient's trachea has a small diameter, which is convenient for insertion; The airbag assembly is arranged on the outer wall of the outer tube 100 and is used to seal the patient's airway; the airbag assembly is provided with a drug delivery assembly, which is used to infiltrate the patient's tracheal wall with drug solution to increase the patient's tolerance to the intubation device; A suction ring assembly, disposed on the outer wall of the outer tube 100 and corresponding to the airbag assembly, for sucking liquid accumulated above the airbag assembly; See also Figure 5 A tube gap 103 is formed between the outer tube 100 and the inner tube 200 , and the pipeline of the airbag assembly and the pipeline of the attraction ring assembly are arranged in the tube gap 103 .

[0028] See also Figure 1 and Figure 2 The airbag assembly includes a second airbag 400 arranged in the middle of the outer tube 100 and a first airbag 300 arranged near the insertion end. The second airbag 400 is connected to a second inflation tube 3, and the first airbag 300 is connected to a first inflation tube 1. The first inflation tube 1 and the second inflation tube 3 pass through the tube gap 103 and exit from the operating end.

[0029] See also Figure 1 and Figure 2 The suction ring assembly includes a first suction ring 101 arranged on the first airbag 300 and a second suction ring 102 arranged on the second airbag 400. The first suction ring 101 is connected to a first suction tube 4, and the second suction ring 102 is connected to a second suction tube 5. The first suction tube 4 and the second suction tube pass through the tube gap 103 and go out from the operating end.

[0030] See also Figure 8 and Fig. 9 After being inflated, the first airbag 300 is in a shuttle shape as a whole, and is provided with an annular groove portion 302. The groove portion 302 is provided with a liquid hole 303 that passes through the first airbag 300. The inner end of the liquid hole 303 is connected to a liquid supply tube 2, and the liquid supply tube 2 passes through the tube gap 103 from the operating end. In this embodiment, the outer tube 100, the first airbag 300 after being inflated, and the groove portion 302 are concentrically arranged.

[0031] See also Figure 8 and Fig. 9 , a medication bag sleeve 304 is provided on the first airbag 300, and the liquid medicine passes through the liquid feeding tube 2, the liquid hole 303 and the groove part 302 in sequence and then passes through the medication bag sleeve 304. The medication bag sleeve 304 can be made of a medical rubber material with good elasticity, and is densely provided with a plurality of small holes on it to achieve the effect of infiltrating the liquid medicine into the patient's tracheal wall. The groove part 302 is filled with a medical sponge, which can increase the infiltration effect of the medication bag sleeve 304 and make the infiltration more uniform. The medication bag sleeve 304 is arranged with a plurality of holes, and the liquid medicine passes through the medication bag sleeve 304 through the plurality of holes and then infiltrates the inner wall of the patient's trachea.

[0032] See also Figure 3 and Figure 4 The first suction ring 101 includes a suction ring body sleeved on the outer tube 100, an annular cavity 104 provided in the suction ring body, and a plurality of suction holes 105 provided in an annular array on the suction ring body. The suction holes 105 are connected to the annular cavity 104. The annular cavity 104 is connected to the first suction tube 4, and the first suction tube 4 is connected to the negative pressure device. After the first airbag 300 is inflated, the liquid accumulated on the upper part thereof is sucked out after passing through the suction holes 105, the annular cavity 104 and the first suction tube 4 in sequence. In this embodiment, the second suction ring 102 has the same structure as the first suction ring 101.

[0033] See also Figure 7 The second airbag 400 is inflated to be in an umbrella shape, and is used to close the glottis and protect the airway. Preferably, a medication bag can also be set on the second airbag 400 to infiltrate the glottis of the patient with a drug solution.

[0034] The intubation device of this embodiment also includes an oral cleaning component for cleaning the patient's oral cavity; the oral cleaning component includes a long hard tube portion 500 and a hose portion 600 connected to the end of the hard tube portion 500, and the hose portion 600 can be bent into a U shape or an O shape, and then sleeved on the outer side of the operating end (see Figure 2 ), and then the hard tube part 500 is driven to move so that the bent soft tube part 600 can avoid the outer tube 100 or the inner tube 200 and slide along the outer side of the operating end. In this embodiment, the soft tube part 600 can be made of silicone rubber, and a metal guide wire (such as copper wire) with strong plasticity is inserted into the pipe wall. The length of the guide wire corresponds to the length of the soft tube part 600 to facilitate plastic deformation.

[0035] See also Figure 5 and Figure 6 The two ends of the hose part 600 are blocked and a plurality of liquid spray holes 601 are arranged on the hose part 600, and the liquid spray holes 601 are connected to the cavity in the hose part 600. The free end of the hard tube part 500 is connected to the liquid medicine injection mechanism, which can be a syringe or an infusion set, and the syringe or the infusion set is connected to the hard tube part 500 to inject the oral care liquid. Inject the cleaning liquid.

[0036] The oral cleaning liquid is sequentially injected into the hard tube part 500 and the soft tube part 600 through the liquid injection mechanism, and is sprayed out from the spray hole 601 to clean and care for the patient's oral cavity.

[0037] See also Figure 5The end of the first inflation tube 1 is connected to the air source equipment, and an air pressure indicator is connected and arranged near the air source equipment.

[0038] In this embodiment, a check valve is provided at the end of the inflation tube to prevent gas from flowing back after inflation.

[0039] The operation steps of this embodiment are as follows: Use an oral endotracheal laryngoscope to open the patient's mouth and expose the glottis. Insert a tube core into the inner tube of the endotracheal tube of the embodiment, then insert the insertion end of the tube into the glottis of the patient, pull out the tube core, slowly insert the first airbag 300 of the endotracheal tube into the glottis, until the second airbag 400 reaches the glottis, stop pushing the endotracheal tube, and connect the second inflation tube 3 to the end of the syringe (with the syringe needle removed) to inflate until the second airbag 400 closes the glottis without over-inflation, and ensure that Confirm that the epiglottis covers the second airbag 400. After confirmation, the second airbag 400 can be evacuated for standby use; withdraw the laryngoscope, confirm that the depth of the tracheal tube is between 20-24cm (the depth of the tracheal tube for female patients is 20-22cm, and the depth of the tracheal tube for male patients is 22-24cm. If necessary, the depth can be fine-tuned, and the tracheal tube is mainly used to ensure bilateral lung ventilation). Connect the first inflation tube 1 to the syringe (remove the syringe needle) and inflate until the pressure indicator shows the appropriate pressure. Use a stethoscope to confirm that the tracheal tube is inserted into the trachea and the depth is appropriate; and insert the tracheal tube fixer into the patient's mouth to fix the tracheal tube.

[0040] Use a syringe to draw several milliliters of local anesthetic (such as lidocaine or tetracaine), connect the syringe to the liquid feeding tube 2, and inject the local anesthetic between the drug administration bag 304 and the groove part 302. The drug infiltrates the tracheal wall mucosa around the drug administration bag 304, thereby achieving an anesthetic effect on the surface of the airway mucosa and producing a natural tolerance effect of tracheal intubation.

[0041] When oral care is needed, after removing the endotracheal tube holder, confirm that the first airbag 300 is successfully inflated through the pressure indicator reading, fill the second airbag 400 with appropriate gas, bend the hose part 600 of the oral care component into a suitable shape and wrap it around the upper end of the inner tube 200, connect the syringe with oral care solution or the pressurized infusion pipeline to the threaded interface at the top of the hard tube part 500, push the oral care solution, and move the hard tube part 500 to make the hose part 600 move up and down above the second airbag 400, or move left and right along the periodontium, spray the care solution onto the patient's oral mucosa and periodontium, and perform oral care, connect the negative pressure device to the second suction tube 5, and complete the absorption of excess care solution. If necessary, a suction tube can be used for further suction, and after completing oral care, the endotracheal tube holder is used again to fix the endotracheal tube.

[0042] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A tube-resistant endotracheal intubation device, characterized in that: It includes: An outer tube (100), one end of which is an insertion end and the other end of which is an operation end; An inner tube (200) is inserted into the outer tube (100), one end of which protrudes from the operating end of the outer tube (100) and is connected to the breathing device, and the other end of which protrudes from the insertion end and is connected to the insertion end of the outer tube (100); An airbag assembly is arranged on the outer wall of the outer tube (100) and is used to seal the patient's airway after being inflated; a drug delivery assembly is arranged on the airbag assembly and is used to infiltrate a drug solution into the patient's tracheal wall to increase the patient's tolerance to the intubation device; A suction ring assembly, arranged on the outer wall of the outer tube (100) and corresponding to the airbag assembly, and used for sucking liquid accumulated above the airbag assembly; A tube gap (103) is formed between the outer tube (100) and the inner tube (200), and the pipeline of the airbag assembly and the pipeline of the attraction ring assembly are arranged in the tube gap (103).

2. A tube-resistant endotracheal intubation device according to claim 1, characterized in that: The airbag assembly comprises a second airbag (400) arranged in the middle of the outer tube (100) and a first airbag (300) arranged near the insertion end, the second airbag (400) being connected to a second inflation tube (3), the first airbag (300) being connected to a first inflation tube (1), the first inflation tube (1) and the second inflation tube (3) passing through the tube gap (103) and exiting from the operating end; The suction ring assembly comprises a first suction ring (101) arranged on the first airbag (300) and a second suction ring (102) arranged on the second airbag (400); the first suction ring (101) is connected to a first suction tube (4); the second suction ring (102) is connected to a second suction tube (5); the first suction tube (4) and the second suction tube pass through the tube gap (103) and exit from the operating end.

3. A tube-resistant endotracheal intubation device according to claim 2, characterized in that: After being inflated, the first airbag (300) is in the shape of a shuttle as a whole, and is provided with an annular groove portion (302). The groove portion (302) is provided with a liquid passage hole (303) penetrating the first airbag (300). The inner end of the liquid passage hole (303) is connected to a liquid supply tube (2), and the liquid supply tube (2) passes through the tube gap (103) and exits from the operating end; The first airbag (300) is provided with a medication bag sleeve (304), and the drug solution passes through the drug supply tube (2), the liquid hole (303) and the groove portion (302) in sequence before passing through the medication bag sleeve (304).

4. A tube-resistant endotracheal intubation device according to claim 3, characterized in that: The medication bag (304) is provided with a plurality of holes arranged thereon, and the drug solution passes through the medication bag (304) through the holes and then infiltrates the mucosa of the inner wall of the patient's trachea.

5. The tube-resistant endotracheal intubation device according to claim 2, characterized in that: The first suction ring (101) comprises a suction ring body sleeved on the outer tube (100), an annular cavity (104) provided in the suction ring body, and a plurality of suction holes (105) provided in an annular array on the suction ring body, the suction holes (105) being connected to the annular cavity (104), the annular cavity (104) being connected to the first suction tube (4), and the first suction tube (4) being connected to the negative pressure device; After the first airbag (300) is inflated, the liquid accumulated on the upper portion thereof is sucked out through the suction hole (105), the annular cavity (104) and the first suction tube (4) in sequence.

6. A tube-resistant endotracheal intubation device according to claim 5, characterized in that: The second attraction ring (102) has the same structure as the first attraction ring (101).

7. The tube-resistant endotracheal intubation device according to claim 2, characterized in that: The second airbag (400) is in an umbrella shape after being inflated, and is used to close the glottis.

8. The tube-resistant endotracheal intubation device according to claim 1, characterized in that: It also includes an oral cleaning component for cleaning the patient's oral cavity; the oral cleaning component includes a long hard tube portion (500) and a soft tube portion (600) connected to the end of the hard tube portion (500); the soft tube portion (600) can be bent into a U-shape or an O-shape, and then sleeved on the outer side of the operating end, and then the hard tube portion (500) is driven to move so that the bent soft tube portion (600) slides along the outer side of the operating end.

9. The tube-resistant endotracheal intubation device according to claim 8, characterized in that: A plurality of liquid spray holes (601) are arranged on the hose portion (600), and the liquid spray holes (601) are in communication with the cavity in the hose portion (600); The free end of the hard tube portion (500) is connected to a drug liquid injection mechanism; The oral cleaning liquid is injected into the hard tube part (500) and the soft tube part (600) in sequence through the liquid injection mechanism, and is sprayed out from the liquid spray hole (601) to clean and care for the patient's oral cavity.

10. The tube-resistant endotracheal intubation device according to claim 2, characterized in that: The end of the first inflation tube (1) is connected to the gas source equipment, and a gas pressure indicator is connected and arranged adjacent to the gas source equipment.