Adjustable self-locking separation type airway opening device for difficult airway

Abstract

The utility model relates to the technical field of airway opening devices, in particular to an adjustable self-locking separation type airway opening device for a difficult airway, which comprises an opening retainer, a laryngoscope tube structure and a support block, the laryngoscope tube structure comprises a tube end, a tube body and a self-locking position adjusting structure, and the self-locking position adjusting structure is mounted on the tube end. An arc-shaped tube body is installed at the lower end of the endoscope tube end portion, an air inlet communicated with the tube body is formed in the endoscope tube end portion, a supporting block is hinged to the tail end of the tube body, and a first ventilation channel and a second ventilation channel which are vertically through are formed in the opening retainer. The self-locking laryngoscope tube is reasonable and compact in structure and convenient to use, the opening retainer and the laryngoscope tube structure are combined for use, the supporting block connected with the tail end of the tube body is adjusted to achieve quick opening of an airway of a patient with difficulty in airway opening such as a fat neck with short and thick mouth and limited mouth opening, self-locking can be achieved, the angle of the supporting block is controlled to be unchanged, and the self-locking laryngoscope tube is convenient to use. And the glottis and the airway can be always kept open in the examination process.

Description

TECHNICAL FIELD

[0001] The utility model relates to airway open device technical field, it is a kind of adjustable self-locking separation type airway open device for difficult airway. BACKGROUND

[0002] Clinical daytime surgery is usually used in intubation-free anesthesia mode, and airway open device such as laryngeal mask, oropharyngeal airway and nasopharyngeal airway is used to open the airway of patient, so as to maintain the smoothness of respiratory tract of patient during operation, reduce the risk of asphyxia, and reduce the biting of lip, tongue and the like of patient in unconscious state due to the anesthesia effect. And in the anesthesia of painless gastrointestinal endoscopy, the anesthesia doctor and the gastroscopy room doctor jointly occupy the oral cavity space, which undoubtedly increases the difficulty of airway management of anesthesia doctor. In addition, there are differences in physiological structure of oral cavity and throat of different patients, and in some special cases (such as: patient is obese, body position changes during operation, neck is short and thick, tongue is obviously backward falling, and respiratory tract is not smooth), the regular operation cannot provide a stable channel for gastrointestinal endoscope. SUMMARY

[0003] The utility model provides a kind of adjustable self-locking separation type airway open device for difficult airway, overcome the above prior art deficiency, it can effectively solve the problem that existing bite mouth and the like device is not convenient for opening airway for patient with dyspnea.

[0004] The technical scheme of the utility model is realized by the following measures: a kind of adjustable self-locking separation type airway open device for difficult airway, including opening maintainer, laryngoscope tube structure, support block, laryngoscope tube structure includes mirror tube end, pipe body and self-locking position adjusting structure, self-locking position adjusting structure is installed on mirror tube end, mirror tube end lower end is installed with the pipe body of arc shape, mirror tube end is equipped with the air inlet that is communicated with pipe body, pipe body terminal end is hinged with support block, opening maintainer is equipped with first ventilation passage and second ventilation passage that pass through up and down, pipe body lower end passes through first ventilation passage, self-locking position adjusting structure can make support block relatively pipe body upward rotation and can be self-locked.

[0005] The following is further optimization or / and improvement to the above technical scheme of the utility model:

[0006] Preferably, the self-locking position adjusting structure includes a transmission shaft, a roller and a lead wire, the roller is drivingly installed on the transmission shaft, the roller is located in the mirror tube end, the lead wire is provided on the roller, the pipe body is provided with a through mounting hole, and the lead wire is connected with the support block after passing through the mirror tube end and the mounting hole.

[0007] Preferably, the self-locking position adjustment structure further includes a self-locking outer cylinder and a self-locking mechanism. The self-locking outer cylinder is fitted on the outer side of the end of the drive shaft away from the roller. A toothed groove is provided on the inner side of the self-locking outer cylinder. At least one set of self-locking mechanisms is provided along the circumference of the end of the drive shaft. The self-locking mechanism includes a connecting block, a first spring, and a pressing block. The end of the drive shaft is provided with a mounting groove. The connecting block is provided in the mounting groove. The first spring is installed between the inner end of the mounting groove and the inner end of the connecting block. A locking tongue is installed on the outer end of the connecting block. The locking tongue matches the toothed groove. A pressing block is installed on the connecting block outside the end of the lens tube. A knob housing is installed on the outer side of the end of the lens tube and is fitted on the outer side of the self-locking outer cylinder. The end of the pressing block is located outside the knob housing.

[0008] Preferably, it also includes a second spring, which is installed between the upper side of the tube end and the corresponding position of the support block.

[0009] Preferably, it also includes a reducing pipe, which includes a connector, an intermediate pipe and a connecting pipe installed together from bottom to top, and the connector can be inserted into the air inlet on the end of the endoscope tube.

[0010] Preferably, a one-way valve is provided in the second venting channel on the open retainer; or / and, limiting protrusions are provided at intervals on the upper side of the tube body.

[0011] Preferably, the lower end of the opening retainer is equipped with an arc-shaped extension plate, the curvature of which is consistent with that of the tube body, and the upper part of the tube body is located inside the extension plate.

[0012] This utility model has a reasonable and compact structure and is easy to use. The mouth-holding device is used in combination with the laryngoscope tube structure. By adjusting the support block connected to the end of the tube, it can quickly open the airway for patients with difficulty in opening the airway, such as obese patients with short and thick necks and limited mouth opening. It can also achieve self-locking and control the angle of the support block to remain unchanged, so as to keep the glottis open and the airway open at all times during the examination. Attached Figure Description

[0013] Appendix Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model.

[0014] Appendix Figure 2 This is a three-dimensional structural diagram of a self-locking position adjustment structure.

[0015] Appendix Figure 3 For the appendix Figure 1 Enlarged three-dimensional structural diagram of the central support block.

[0016] Appendix Figure 4 For the appendix Figure 1 A magnified three-dimensional structural diagram of the central opening retainer.

[0017] Appendix Figure 5 For the appendix Figure 1 A magnified three-dimensional structural diagram of the central laryngoscope tube.

[0018] The codes in the attached diagram are as follows: 1 is the opening retainer, 2 is the end of the endoscope tube, 3 is the tube body, 4 is the support block, 5 is the first ventilation channel, 6 is the second ventilation channel, 7 is the self-locking outer cylinder, 8 is the drive shaft, 9 is the roller, 10 is the lead wire, 11 is the connecting block, 12 is the first spring, 13 is the pressing block, 14 is the knob housing, 15 is the locking tongue, 16 is the intermediate tube, 17 is the connecting tube, 18 is the one-way valve, 19 is the extension plate, 20 is the second spring, 21 is the limiting protrusion, and 22 is the air inlet. Detailed Implementation

[0019] This utility model is not limited to the following embodiments, and the specific implementation method can be determined according to the technical solution of this utility model and the actual situation.

[0020] In this utility model, for ease of description, the description of the relative positions of the components is based on the appendix to the specification. Figure 1 The layout is described using a diagrammatic method, such as front, back, top, bottom, left, right, etc. The positional relationships are determined based on the layout direction of the attached diagram in the instruction manual.

[0021] The present invention will be further described below with reference to the embodiments and accompanying drawings:

[0022] Example 1: As shown in the attached document Figures 1-5 As shown, the adjustable self-locking split airway opening device for difficult airways includes an opening retainer 1, a laryngoscope tube structure, and a support block 4. The laryngoscope tube structure includes a tube end 2, a tube body 3, and a self-locking position adjustment structure. The self-locking position adjustment structure is installed on the tube end 2. The lower end of the tube end 2 is equipped with an arc-shaped tube body 3. The tube end 2 is provided with an air inlet 22 that communicates with the tube body 3. The support block 4 is hinged to the end of the tube body 3. The opening retainer 1 is provided with a first ventilation channel 5 and a second ventilation channel 6 that are connected vertically. The lower end of the tube body 3 passes through the first ventilation channel 5. The self-locking position adjustment structure allows the support block 4 to rotate upward relative to the tube body 3 and to self-lock.

[0023] When in use, the mouth retainer 1 can be used alone for patients with easily open airways. The patient bites down on the mouth retainer 1 and air enters through the second ventilation channel 6. For obese patients with short and thick necks and limited mouth opening, the tube 3 is inserted into the first ventilation channel 5 on the mouth retainer 1 while using the mouth retainer 1. The tube 3 passes through the oral cavity, and the support block 4 is located at the epiglottis. The support block 4 is raised by the self-locking position adjustment structure. After the adjustment angle is determined, the self-locking is activated to keep the angle of the support block 4 unchanged, so that the support block 4 raises the epiglottis, thereby opening the glottis and allowing air to enter. The height of the support block 4 can be controlled according to the individual patient's condition and examination needs, so as to meet the needs of more patients with different requirements and reduce discomfort or pain during the examination due to the mismatch between the device and the patient's oral structure. After the examination, the self-locking is released to allow the support block 4 to return to its original position.

[0024] The above-mentioned adjustable self-locking airway opening device for difficult airways can be further optimized and / or improved according to actual needs:

[0025] Example 2: As shown in the attached document Figure 1 , 2 As shown in Figure 5, the self-locking position adjustment structure includes a drive shaft 8, a roller 9, and a guide wire 10. The roller 9 is mounted on the drive shaft 8 and is located inside the end 2 of the endoscope tube. The roller 9 is equipped with a guide wire 10. The tube body 3 has a through mounting hole. The guide wire 10 passes through the end 2 of the endoscope tube, the mounting hole, and connects to the support block 4. By rotating the drive shaft 8, the guide wire 10 can be retracted, thereby lifting the support block 4 and adjusting its angle.

[0026] Example 3: As shown in the attached document Figure 2As shown, the self-locking position adjustment structure also includes a self-locking outer cylinder 7 and a self-locking mechanism. The outer cylinder 7 is fitted onto the outer side of the end of the drive shaft 8 furthest from the roller 9. A toothed groove is provided on the inner side of the outer cylinder 7. At least one set of self-locking mechanisms is provided along the circumference of the end of the drive shaft 8. The self-locking mechanism includes a connecting block 11, a first spring 12, and a pressing block 13. An installation groove is provided at the end of the drive shaft 8, and the connecting block 11 is installed inside the installation groove. The first spring 12 is installed between the inner end of the installation groove and the inner end of the connecting block 11. A locking tongue 15 is installed on the outer end of the connecting block 11, and the locking tongue 15 matches the toothed groove. A pressing block 13 is installed on the connecting block 11, located outside the end 2 of the lens tube. A knob housing 14, fitted onto the outer side of the self-locking outer cylinder 7, is installed on the outer side of the end 2 of the lens tube. The end of the pressing block 13 is located outside the knob housing 14. Two sets of self-locking structures can be provided as needed. When adjustment is needed, push the pressing block 13 inward to move the connecting block 11 inward and compress the first spring 12, causing the locking tongue 15 to separate from the tooth groove. Then rotate the pressing block 13, which drives the connecting block 11, the drive shaft 8, and the roller 9 to rotate, thereby retracting the lead wire 10 and pulling up the support block 4. After adjusting to the required angle, release the pressing block 13. The first spring 12 returns to its original position and pushes the connecting block 11 and the locking tongue 15 outward. The locking tongue 15 engages with the tooth groove to achieve self-locking. The support block 4 cannot rotate after being locked, thus ensuring stable opening during inspection.

[0027] Example 4: As shown in the appendix Figure 3 As shown, it also includes a second spring 20, which is installed between the upper end of the tube 3 and the corresponding position of the support block 4. With the second spring 20 installed, during inspection, the lead wire 10 shortens, pulling the support block 4 upwards, thus stretching the second spring 20. After the inspection is completed, the lead wire 10 extends, and the second spring 20, under the action of the restoring force, pulls the support block 4 downwards to reset, simultaneously resetting the lead wire 10.

[0028] Example 5: As shown in the attached document Figure 1 As shown, it also includes a reducer, which comprises a connector, an intermediate tube 16, and a connecting tube 17 installed sequentially from bottom to top. The connector can be inserted into the air inlet 22 on the end of the endoscope tube 2. By providing the reducer, an oxygen tube can be connected to its upper end for oxygen supply.

[0029] Example 6: As attached Figure 1 As shown, the second ventilation channel 6 of the mouth-opening device 1 is equipped with a one-way valve 18. When the patient experiences respiratory depression or arrest, intubation can be performed through the second ventilation channel 6, and the one-way valve 18 prevents oxygen leakage. The mouth-opening device 1 has dual channels, a first ventilation channel 5 and a second ventilation channel 6, which does not affect intubation operations in special circumstances.

[0030] Example 7: As attached Figure 5As shown, the upper side of the tube body 3 is provided with limiting protrusions 21 at intervals. By setting the limiting protrusions 21, they can abut against the inner side of the first ventilation channel 5 to increase the friction force, control the position of the tube body 3 inserted into the first ventilation channel 5, and control the insertion depth as needed.

[0031] Example 8: As attached Figure 4 As shown, an arc-shaped extension plate 19 is installed at the lower end of the opening retainer 1. The curvature of the extension plate 19 is consistent with that of the tube body 3, and the upper part of the tube body 3 is located inside the extension plate 19. By setting the extension plate 19, the tongue can be pressed down when the opening retainer 1 is used alone, and the tube body 3 can also be guided and supported to maintain its stability.

[0032] This invention was developed to overcome the challenges of airway management in day surgery anesthesia and emergency settings. It can help medical staff better expose the glottis and maintain airway patency, providing strong protection for patient safety during surgery and playing an important role in clinical practice.

[0033] The above technical features constitute various embodiments of this utility model, which have strong adaptability and implementation effect. Unnecessary technical features can be added or removed according to actual needs to meet the needs of different situations.

Claims

1. An adjustable self-locking separation airway opening device for difficult airways, characterized in that... The device includes an mouth retainer, a laryngoscope tube structure, and a support block. The laryngoscope tube structure includes a tube end, a tube body, and a self-locking position adjustment structure. The self-locking position adjustment structure is installed on the tube end. An arc-shaped tube body is installed at the lower end of the tube end. An air inlet communicating with the tube body is provided on the tube end. A support block is hinged to the end of the tube body. The mouth retainer has a first and a second air passage that are connected vertically. The lower end of the tube body passes through the first air passage. The self-locking position adjustment structure allows the support block to rotate upward relative to the tube body and can self-lock.

2. The adjustable self-locking separation airway opening device for difficult airways according to claim 1, characterized in that... The self-locking position adjustment structure includes a drive shaft, a roller, and a guide wire. The roller is mounted on the drive shaft and is located inside the end of the endpiece tube. The roller is equipped with a guide wire, and the tube body has a through mounting hole. The guide wire passes through the end of the endpiece tube and the mounting hole and then connects to the support block.

3. The adjustable self-locking separation airway opening device for difficult airways according to claim 2, characterized in that... The self-locking position adjustment structure also includes a self-locking outer cylinder and a self-locking mechanism. The outer cylinder is fitted on the outside of the end of the drive shaft away from the roller. A toothed groove is provided on the inner side of the self-locking outer cylinder. At least one set of self-locking mechanisms is provided along the circumference of the end of the drive shaft. The self-locking mechanism includes a connecting block, a first spring, and a pressing block. The end of the drive shaft is provided with a mounting groove. The connecting block is provided in the mounting groove. The first spring is installed between the inner end of the mounting groove and the inner end of the connecting block. A locking tongue is installed on the outer end of the connecting block. The locking tongue matches the toothed groove. A pressing block is installed on the connecting block outside the end of the lens tube. A knob housing is installed on the outside of the self-locking outer cylinder. The end of the pressing block is located outside the knob housing.

4. The adjustable self-locking split-type airway opening device for difficult airways according to claim 1, 2, or 3, characterized in that... It also includes a second spring, which is installed between the upper side of the tube end and the corresponding position of the support block.

5. The adjustable self-locking split-type airway opening device for difficult airways according to claim 1, 2, or 3, characterized in that... It also includes a reducer, which consists of a connector, an intermediate tube, and a connecting tube installed together from bottom to top. The connector can be inserted into the air inlet at the end of the endpiece tube.

6. The adjustable self-locking separation airway opening device for difficult airways according to claim 4, characterized in that... It also includes a reducer, which consists of a connector, an intermediate tube, and a connecting tube installed together from bottom to top. The connector can be inserted into the air inlet at the end of the endpiece tube.

7. The adjustable self-locking split-type airway opening device for difficult airways according to claim 1, 2, 3, or 6, characterized in that... A one-way valve is provided in the second venting channel on the open retainer; or / and, a limiting protrusion is provided at intervals on the upper side of the tube body.

8. The adjustable self-locking separation airway opening device for difficult airways according to claim 4, characterized in that... A one-way valve is provided in the second venting channel on the open retainer; or / and, a limiting protrusion is provided at intervals on the upper side of the tube body.

9. The adjustable self-locking separation airway opening device for difficult airways according to claim 5, characterized in that... A one-way valve is provided in the second venting channel on the open retainer; or / and, a limiting protrusion is provided at intervals on the upper side of the tube body.

10. The adjustable self-locking split-type airway opening device for difficult airways according to claim 1, 2, 3, 6, 8, or 9, characterized in that... An arc-shaped extension plate is installed at the lower end of the open retainer. The curvature of the extension plate is consistent with that of the tube body, and the upper part of the tube body is located inside the extension plate.

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