Air passage opening device based on ratchet mechanism

Abstract

The utility model relates to the technical field of airway opening devices, in particular to an airway opening device based on a ratchet mechanism, which comprises an opening retainer, a laryngoscope tube structure and a supporting block, the laryngoscope tube structure comprises a laryngoscope tube end part, a tube body and a pulling structure, the pulling structure is mounted on the laryngoscope tube end part, the arc-shaped tube body is mounted at the lower end of the laryngoscope tube end part, and the supporting block is mounted on the laryngoscope tube end part. An air inlet communicated with the tube body is formed in the end of the endoscope tube, a supporting block is hinged to the tail end of the tube body, a vertically-through ventilation channel is formed in the opening retainer, and the lower end of the tube body penetrates through the ventilation channel. The 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 rapid opening of the airway of a patient with difficulty in airway opening such as obesity, short and thick neck and limited mouth opening, and the lifting degree of the supporting block can be flexibly adjusted according to examination requirements. Therefore, the glottis opening degree is adjusted, the application range is larger, and the glottis opening degree adjusting device can adapt to more people.

Description

TECHNICAL FIELD

[0001] The utility model relates to airway open device technical field, it is a kind of airway open device based on ratchet mechanism. BACKGROUND

[0002] In the medical diagnosis field, airway open device such as laryngoscope is widely used in otolaryngology, respiratory department, anesthesiology department and other clinical departments as an indispensable endoscope tool. However, the existing airway open device design still has many deficiencies in the aspects of adjustment flexibility, fixing stability and ease of use. Most of them adopt fixed structure, and the main part cannot be flexibly adjusted according to the individual differences of patients such as short and thick neck, limited mouth opening and examination requirements. This not only limits the operation space of doctors, increases the examination difficulty, but also may cause discomfort or pain in the examination process due to the mismatch between the device and the oral structure of the patient. SUMMARY

[0003] The utility model provides a kind of airway open device based on ratchet mechanism, overcome the deficiency of above-mentioned prior art, it can effectively solve the discomfort or pain in the examination process caused by the mismatch between the existing airway open device and the oral structure of patient and not easy to carry out flexible adjustment.

[0004] The technical scheme of the utility model is realized through the following measures: a kind of airway open device based on ratchet mechanism, including opening maintainer, laryngoscope tube structure, support block, laryngoscope tube structure includes mirror tube end, pipe body and pull structure, pull 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 is hinged with support block, opening maintainer is equipped with the first ventilation passage and the second ventilation passage that pass through up and down, pipe body lower end passes through the first ventilation passage, pull structure can make support block relatively pipe body rotate upwards.

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

[0006] Preferably, pull structure includes screw knob, transmission shaft, roller, lead, transmission shaft one end passes through mirror tube end and is installed together with screw knob, transmission shaft other end is installed with roller, roller is located in mirror tube end, lead is wound on roller, pipe body is equipped with through mounting hole, lead passes through mirror tube end, mounting hole and is connected with support block.

[0007] Preferably, pull structure further includes ratchet, pawl, adjustable knob, transmission shaft is drivenly installed with ratchet, ratchet front side is equipped with the pawl that is used in cooperation with it, adjustable knob is connected with pawl by key shaft, adjustable knob is located outside mirror tube end.

[0008] Preferably, a reset spring is further included, and the reset spring is installed between the upper side of the end of the tube body and the corresponding position of the supporting block.

[0009] Preferably, a variable-diameter tube is further included, and the variable-diameter tube comprises a plug-in tube, an intermediate tube and a connecting tube which are sequentially installed from bottom to top, and the plug-in tube is capable of being plugged into the air inlet on the end of the mirror tube.

[0010] Preferably, a one-way valve is arranged in the second air passage of the opening maintainer, and the one-way valve comprises a rubber head and a rubber body which are connected together.

[0011] Preferably, an extension plate in the shape of a circular arc is installed at the lower end of the opening maintainer, the arc of the extension plate is consistent with the tube body, and the upper part of the tube body is located inside the extension plate.

[0012] The utility model discloses a reasonable and compact structure, convenient to use, and the opening maintainer and the laryngoscope tube structure are combined to use, the airway opening difficulty patient such as short and thick neck of obese person, airway of mouth opening limited is realized to the quick opening through the supporting block connected to the end of the tube body end, can flexibly adjust the degree of lifting of the supporting block according to the examination demand, and the degree of glottis opening is adjusted, so the use range is larger, and more people can be adapted. BRIEF DESCRIPTION OF DRAWINGS

[0013] ATTACHED Figure 1 It is the three-dimensional structure schematic diagram of the embodiment of the utility model.

[0014] ATTACHED Figure 2 It is the three-dimensional structure schematic diagram of the pulling structure.

[0015] ATTACHED Figure 3 It is the three-dimensional structure schematic diagram of the opening maintainer and the laryngoscope tube structure.

[0016] ATTACHED Figure 4 It is attached Figure 1 It is the enlarged structure schematic diagram of the supporting block.

[0017] ATTACHED Figure 5 It is the three-dimensional structure schematic diagram of the variable-diameter tube.

[0018] ATTACHED Figure 6 It is the three-dimensional structure schematic diagram of the one-way valve.

[0019] The codes in the drawings are as follows: 1 is the opening maintainer, 2 is the end of the mirror tube, 3 is the tube body, 4 is the supporting block, 5 is the air inlet, 6 is the second air passage, 7 is the screw knob, 8 is the transmission shaft, 9 is the roller, 10 is the lead wire, 11 is the ratchet wheel, 12 is the pawl, 13 is the adjustable knob, 14 is the reset spring, 15 is the plug-in tube, 16 is the intermediate tube, 17 is the connecting tube, 18 is the rubber head, 19 is the rubber body, and 20 is the extension plate. DETAILED DESCRIPTION

[0020] 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.

[0021] 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.

[0022] The present invention will be further described below with reference to the embodiments and accompanying drawings:

[0023] Example 1: As shown in the attached document Figures 1-6 As shown, the airway opening device based on the ratchet mechanism 11 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 pulling structure. The pulling 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 5 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 and a second ventilation channel 6 that are connected vertically. The lower end of the tube body 3 passes through the first ventilation channel. The pulling structure can make the support block 4 rotate upward relative to the tube body 3.

[0024] When in use, the mouth retainer 1 can be used alone for patients whose airways are easily opened. 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 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 lifted by pulling the device, which lifts the support block 4 to lift 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.

[0025] The airway opening device based on the ratchet 11 mechanism can be further optimized and / or improved according to actual needs:

[0026] Example 2: As shown in the attached document Figures 1-2As shown, the pulling structure includes a threaded knob 7, a transmission shaft 8, a roller 9, and a lead wire 10. One end of the transmission shaft 8 passes through the mirror tube end 2 and is installed together with the threaded knob 7. The other end of the transmission shaft 8 is installed with the roller 9, which is located in the mirror tube end 2. The lead wire 10 is wound around the roller 9. The tube body 3 is provided with a through mounting hole. The lead wire 10 passes through the mirror tube end 2 and the mounting hole and is connected with the support block 4. By rotating the threaded knob 7 to drive the roller 9 to rotate, the lead wire 10 connected to the support block 4 is pulled, the support block 4 is lifted, the epiglottis is lifted, the glottis is opened, and the airway is exposed. The lifting degree of the support block 4 is adjusted according to the opening degree of the glottis.

[0027] Embodiment 3: as shown in the accompanying Figures 1-2 As shown, the pulling structure further includes a ratchet 11, a pawl 12, and an adjustable knob 13. The transmission shaft 8 is drivingly installed with the ratchet 11. The ratchet 11 is provided with the pawl 12 which is used in cooperation with the ratchet 11. The adjustable knob 13 is connected with the pawl 12 through a key shaft. The adjustable knob 13 is located outside the mirror tube end 2. When the threaded knob 7 is rotated, the rotating shaft and the ratchet 11 are rotated. The pawl 12 is latched on the ratchet 11. When the ratchet 11 is reversely rotated, the pawl 12 is latched in the tooth groove of the ratchet 11, so as to realize self-locking, avoid the support block 4 from moving downward to reduce the opening degree of the glottis, and affect the examination. After the examination is completed, the adjustable knob 13 is rotated to separate the pawl 12 from the ratchet 11, and the ratchet 11 is rotated to reset.

[0028] Embodiment 4: as shown in the accompanying Figure 3 As shown, it further includes a reset spring 14. The reset spring 14 is installed between the corresponding position of the support block 4 on the upper side of the end of the tube body 3. The reset spring 14 is set. When the lead wire 10 is shortened to lift the support block 4 upward, the reset spring 14 is stretched. After the examination is completed, the lead wire 10 is elongated. Under the action of the restoring force, the reset spring 14 pulls the support block 4 to reset downward, and resets the lead wire 10.

[0029] Embodiment 5: as shown in the accompanying Figure 5 As shown, it further includes a variable diameter pipe. The variable diameter pipe includes a plug-in pipe 15, an intermediate pipe 16, and a connecting pipe 17 which are installed together from bottom to top. The plug-in pipe 15 can be plugged into the air inlet 5 on the mirror tube end 2. By setting the variable diameter pipe, the oxygen pipe can be connected at the upper end of the variable diameter pipe for oxygen supply.

[0030] Embodiment 6: as shown in the accompanying Figure 6 As shown, the one-way valve is arranged in the second ventilation passage 6 of the opening maintainer 1. The one-way valve includes a rubber head 18 and a rubber body 19 which are connected together. When the patient has respiratory depression or stops breathing, the tracheal intubation can be performed through the second ventilation passage 6. The one-way valve can avoid the outflow of oxygen. The opening maintainer 1 has a double-channel of the first ventilation passage and the second ventilation passage 6, which does not affect the tracheal intubation operation in special cases.

[0031] Embodiment 7: as shown in the accompanying Figure 1 , 3 The lower end of the opening holder 1 is provided with an extension plate 20 in the shape of a circular arc, the radius of the extension plate 20 is consistent with the pipe body 3, and the upper part of the pipe body 3 is located inside the extension plate 20. By arranging the extension plate 20, the tongue can be pressed when the opening holder 1 is used alone, and the pipe body 3 can be guided and supported to maintain stability.

[0032] The above technical features respectively constitute various embodiments of the present application, which have strong adaptability and implementation effect, and unnecessary technical features can be added or reduced according to actual needs to meet the needs of different situations.

Claims

1. A ratchet mechanism based airway opening device, characterized in that The opening maintainer, laryngoscope tube structure and support block are provided, the laryngoscope tube structure comprises a mirror tube end, a tube body and a pulling structure, the pulling structure is installed on the mirror tube end, the tube body in a circular arc shape is installed at the lower end of the mirror tube end, an air inlet is arranged on the mirror tube end and communicates with the tube body, and the support block is hingedly connected to the end of the tube body.

2. A ratchet mechanism based airway opening device according to claim 1 characterised in that The pulling structure comprises a threaded knob, a transmission shaft, a roller and a lead wire, one end of the transmission shaft is installed together with the threaded knob through the mirror tube end, the other end of the transmission shaft is provided with the roller, the roller is located in the mirror tube end, the lead wire is wound on the roller, the tube 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.

3. A ratchet mechanism based airway opening device according to claim 2, characterised in that The pulling structure further comprises a ratchet wheel, a pawl and an adjustable knob, the ratchet wheel is drivingly installed on the transmission shaft, the pawl is arranged on the front side of the ratchet wheel and cooperates with the ratchet wheel, the adjustable knob is connected with the pawl through a key shaft, and the adjustable knob is located outside the mirror tube end.

4. A ratchet-mechanism-based airway-opening device according to claim 1 or 2 or 3, characterised in that The reset spring is further provided, and the reset spring is installed between the corresponding position of the upper side of the end of the tube body and the support block.

5. A ratchet-mechanism-based airway-opening device according to claim 1 or 2 or 3, characterised in that The variable-diameter tube further comprises a plug-in pipe, an intermediate pipe and a connecting pipe which are sequentially installed together from bottom to top, and the plug-in pipe can be plugged into the air inlet on the mirror tube end.

6. A ratchet mechanism based airway opening device according to claim 4, wherein The variable-diameter tube further comprises a plug-in pipe, an intermediate pipe and a connecting pipe which are sequentially installed together from bottom to top, and the plug-in pipe can be plugged into the air inlet on the mirror tube end.

7. A ratchet-mechanism-based airway-opening device according to claim 1 or 2 or 3 or 6, characterised in that The one-way valve is arranged in the second ventilation passage of the opening maintainer, and the one-way valve comprises a rubber head and a rubber body which are connected together.

8. A ratchet mechanism based airway opening device according to claim 4, wherein The one-way valve is arranged in the second ventilation passage of the opening maintainer, and the one-way valve comprises a rubber head and a rubber body which are connected together.

9. A ratchet-mechanism-based airway-opening device according to claim 5, wherein The one-way valve is arranged in the second ventilation passage of the opening maintainer, and the one-way valve comprises a rubber head and a rubber body which are connected together.

10. A ratchet-mechanism-based airway-opening device according to claim 1 or 2 or 3 or 6 or 8 or 9, characterized in that The circular arc-shaped extension plate is installed at the lower end of the opening maintainer, the arc of the extension plate is consistent with the tube body, and the upper part of the tube body is located on the inner side of the extension plate.

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