An oral surface anesthetic ventilation intubation

Abstract

The present invention discloses an oral surface anesthetic ventilation intubation device, belonging to the field of medical devices, comprising: an inner medicine storage tube with an inner medicine storage cavity provided therein, and an atomizing member is arranged in the inner medicine storage cavity. The fluid in the inner medicine storage cavity can pass through the atomizing member along a spraying direction and leave the inner medicine storage tube; an outer medicine storage tube is provided with a guiding cavity and a squeezing cavity penetrating along its own central axis. The outer medicine storage tube can be sleeved outside the inner medicine storage tube through the guiding cavity and reciprocate along the central axis of the inner medicine storage tube; an outer medicine storage cavity is arranged around the inner wall of the squeezing cavity, and a medicine release channel is arranged between the outer medicine storage cavity and the outer wall of the outer medicine storage tube. The fluid in the outer medicine storage cavity can leave the outer medicine storage tube through the medicine release channel. Through the above settings, the present invention can first quickly anesthetize the parts in the patient's oral cavity that are easily irritated and uncomfortable, and then segmentally anesthetize other parts in the oral cavity, so as to effectively reduce the discomfort generated by the patient during oral surface anesthesia and saturate the anesthesia of the patient's oral cavity.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and particularly relates to an oral topical anesthesia ventilation endotracheal tube. Background Art

[0002] General anesthesia refers to the inhalation of anesthetic drugs through the respiratory tract, intravenous or intramuscular injection into the body, causing temporary inhibition of the central nervous system throughout the body. Its clinical manifestations include loss of consciousness, disappearance of general pain sensation, amnesia, reflex inhibition, and skeletal muscle relaxation. The degree of inhibition of the central nervous system is related to the drug concentration in the blood and can be controlled and adjusted.

[0003] Currently, patients undergoing general anesthesia surgery require endotracheal intubation. If there are patients with difficult endotracheal intubation due to unclear anatomical structures, doctors often choose to perform endotracheal intubation under local anesthesia with the patient awake. However, when the patient is awake during intubation, the anesthesiologist needs to continuously spray local anesthetic drugs, which is time-consuming and laborious, and the local anesthetic effect of an inexperienced anesthesiologist is not good. When the doctor releases the topical anesthetic through the instrument inserted into the patient's mouth, the patient is likely to feel uncomfortable when stimulated by the instrument in the mouth, thus greatly reducing the patient experience.

[0004] Therefore, a device capable of segmental anesthesia of the patient's oral cavity is designed, specifically an oral topical anesthesia ventilation endotracheal tube. Summary of the Invention

[0005] In order to overcome the problems proposed in the background art, the present invention adopts the following technical solutions:

[0006] An oral topical anesthesia ventilation endotracheal tube, which includes a front-end anesthesia component for releasing topical anesthetic to the easily stimulated parts in the patient's oral cavity and a peripheral anesthesia component for releasing topical anesthetic to other parts in the patient's oral cavity. Specifically, it includes: an inner medicine storage tube, which has an inner medicine storage cavity inside, and a nebulizing member is arranged in the inner medicine storage cavity. The fluid in the inner medicine storage cavity can pass through the nebulizing member along a gushing direction and leave the inner medicine storage tube; an outer medicine storage tube, which is provided with a guiding cavity and a pressing cavity along its own central axis. The outer medicine storage tube can be sleeved outside the inner medicine storage tube through the guiding cavity and reciprocate along the central axis of the inner medicine storage tube; an outer medicine storage cavity is arranged around the inner wall of the pressing cavity, and a medicine release channel is arranged between the outer medicine storage cavity and the outer wall of the outer medicine storage tube. The fluid in the outer medicine storage cavity can leave the outer medicine storage tube through the medicine release channel.

[0007] Further, the inner medicine storage tube is provided with a viewing cavity along its central axis, a viewing mirror is connected in the viewing cavity, one end of the viewing mirror is arranged in the viewing cavity, and the other end of the viewing mirror is electrically connected to an external device for the doctor to observe the tissue structure in the patient's oral cavity;

[0008] Optionally, along the central axis of the inner medicine storage tube, the length of the endoscope is greater than the length of the inner medicine storage tube, so that one end of the endoscope facing away from the spraying direction can be exposed outside the inner medicine storage tube, which is beneficial to the connection between the endoscope and external devices;

[0009] Optionally, the outer diameter of the endoscope is not less than the inner diameter of the inspection cavity, and the endoscope is in interference fit or transition fit with the inspection cavity to prevent the endoscope from disengaging from the inspection cavity during use;

[0010] Optionally, a lighting structure is further provided at one end of the endoscope facing the spraying direction to provide illumination when the inner medicine storage tube extends into the patient's oral cavity, facilitating the doctor to capture the image in the spraying direction through the endoscope.

[0011] Furthermore, the atomizing member is specifically a high-frequency oscillating sheet, and a lead wire also penetrates through the inner medicine storage tube. One end of the lead wire is connected to the atomizing member, and the other end of the lead wire is left outside the inner medicine storage tube facing away from the spraying direction for connection to an external power source;

[0012] Optionally, the atomizing member can be opened and closed with the end of the inner medicine storage cavity facing the spraying direction. The user can open the atomizing member to fill the surface anesthetic into the inner medicine storage cavity, and after filling, use the atomizing member to block the inner medicine storage cavity. The high-frequency oscillating sheet will only atomize and spray the liquid medicine in the inner medicine storage cavity through its own micropores after being powered on;

[0013] Optionally, the lead wire penetrates into the inner medicine storage cavity. Along the central axis direction of the inner medicine storage tube, the length of the part of the lead wire in the inner medicine storage tube is greater than the length of the inner medicine storage cavity. After the user opens the atomizing member, the atomizing member is driven away from the inner medicine storage cavity under external force and stretches the lead wire, which can prevent the atomizing member from blocking the inner medicine storage cavity when filling the surface anesthetic, and the connection of the lead wire can also prevent the atomizing member from being lost;

[0014] Alternatively, the lead wire does not penetrate into the inner medicine storage cavity.

[0015] Furthermore, a traction cavity is provided along the central axis of the inner medicine storage tube, and a traction member is connected in the traction cavity. One end of the traction cavity facing away from the spraying direction penetrates through the outer wall of the inner medicine storage tube and leaves the traction member outside the inner medicine storage tube;

[0016] Optionally, the traction member is a wire;

[0017] Optionally, the inner medicine storage tube is elastic. When the traction member moves away from the spraying direction, it drives the inner medicine storage tube to bend, and when the traction member is not subject to external force, the inner medicine storage tube straightens;

[0018] Optionally, the number of the traction cavities is at least two, and the traction cavities are arranged around the central axis of the inner medicine storage tube. The user can adjust the orientation of the inner medicine storage tube in the patient's oral cavity by pulling the traction members at different positions, so that the inner medicine storage tube can approach the palate or enter the larynx in the curved oral environment of the patient.

[0019] Optionally, the number of the traction members is at least the same as that of the traction cavities.

[0020] Optionally, the outer diameter of the traction member is smaller than the inner diameter of the traction cavity, so as to weaken the friction between the traction member and the traction cavity and reduce the force required for the user to change the orientation of the inner medicine storage tube by pulling the traction member.

[0021] Furthermore, an air vent tube is further included. The air vent tube is movably arranged in the extrusion cavity. When the air vent tube passes through the extrusion cavity along the spraying direction, it extrudes the outer medicine storage cavity and drives the fluid in the outer medicine storage cavity to leave the outer medicine storage tube through the medicine release channel. When the air vent tube is inserted into the outer medicine storage tube, it can squeeze out the surface anesthetic in the outer medicine storage cavity and at the same time maintain the smooth air flow between the two ends of the outer medicine storage tube, so as not to affect the patient's breathing.

[0022] Optionally, a plurality of medicine release channels are arranged in an array along the spraying direction between each outer medicine storage cavity and the outer medicine storage tube.

[0023] Alternatively, each outer medicine storage cavity is evenly divided into a plurality of medicine storage units, and each medicine storage unit is communicated with at least one medicine release channel.

[0024] Optionally, the ends of the medicine release channels facing away from the outer medicine storage cavity are evenly distributed on the outer wall of the outer medicine storage tube. When the air vent tube enters the extrusion cavity, it can spray the surface anesthetic into the patient's oral cavity in different directions.

[0025] Optionally, the outer diameter of the air vent tube is smaller than the inner diameter of the extrusion cavity to provide a deformation space for the outer medicine storage cavity.

[0026] Optionally, the outer medicine storage cavity is elastic. When the air vent tube leaves the extrusion cavity in the reverse spraying direction, the outer medicine storage cavity expands into the extrusion cavity and inhales the fluid outside the outer medicine storage tube through the medicine release channel. Through this setting, the mixed liquid of saliva and excess surface anesthetic in the patient's oral cavity can be absorbed to prevent the mixed liquid from flowing into the patient's respiratory tract.

[0027] Furthermore, a positioning structure is further included. An insertion channel is arranged through the positioning channel, and the inner diameter of the insertion channel is not less than the outer diameter of the outer medicine storage tube. A bite groove is further arranged on the outer wall of the positioning structure. By arranging the bite groove, the patient's mouth can be kept open, which is beneficial to inserting the inner medicine storage tube and the outer medicine storage tube into the patient's oral cavity.

[0028] Optionally, the cross-sectional shape of the insertion channel along its central axis is circular;

[0029] Optionally, the cross-section of the occlusal groove along the central axis of the insertion channel is oval.

[0030] Furthermore, it further includes a prompting structure, which includes a connecting ring, a detecting member and a sounding member. The socket ring can be sleeved on the outer wall of the positioning structure, and the sounding member is electrically connected to the detecting member; a plurality of identifying members are arranged at equal intervals on the ventilation pipe, and the detecting member is connected to the side of the prompting structure facing the insertion channel. When the ventilation pipe moves along its central axis in the spraying direction and the identifying member is aligned with the detecting member, the sounding member emits a sound;

[0031] Optionally, a constraint hole is provided through the outer wall of the positioning structure and the insertion channel. When the prompting structure is connected to the positioning structure, the detecting member passes through the constraint hole, and the direction of the detecting member is perpendicular to the central axis of the insertion channel;

[0032] Optionally, the length of the ventilation pipe is greater than the length of the outer medicine storage tube.

[0033] Furthermore, the setting interval of the identifying member along the central axis of the ventilation pipe is the same as the setting interval of the medicine release channel along the central axis of the outer medicine storage tube. When the ventilation pipe is inserted into the extrusion cavity and passes through each medicine release channel, the sounding member will emit a sound.

[0034] Furthermore, the outer medicine storage tube and the inner medicine storage tube are transparent.

[0035] Furthermore, the outer medicine storage tube and the inner medicine storage tube are made of the same material.

[0036] Furthermore, the inner medicine storage tube, the endoscope, the atomizing member and the traction wire form a front-end anesthesia assembly, and the outer medicine storage tube and the ventilation pipe form a peripheral anesthesia assembly.

[0037] Advantages of the present invention:

[0038] By providing a front-end anesthesia assembly capable of adjusting the front-end orientation and a peripheral anesthesia assembly capable of releasing the topical anesthetic in segments and giving a prompt to the outside when releasing the topical anesthetic, the present invention can first quickly anesthetize the parts in the patient's oral cavity that are easily irritated and uncomfortable, and then anesthetize other parts in the oral cavity in segments, so as to effectively reduce the discomfort of the patient during the oral topical anesthesia and saturate the anesthesia of the patient's oral cavity, without the need to repeatedly spray the topical anesthetic. The operator can also observe the patient's oral cavity through the endoscope, which is beneficial to reducing the number of contacts between the inner medicine storage tube and the patient's oral cavity during the insertion process, so as to avoid causing discomfort to the patient before anesthetizing the easily irritated palate and larynx of the patient. Description of the Drawings

[0039] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0040] Figure 1 This is a schematic diagram of the overall structure of the present invention after the positioning prompt component and the ventilation pipe are assembled;

[0041] Figure 2 for Figure 1 A schematic diagram of the enlarged local structure at point A in the middle;

[0042] Figure 3 for Figure 2 Schematic diagram of the structure when the front-end anesthesia component is not assembled;

[0043] Figure 4 for Figure 3 A schematic cross-sectional structure diagram of ;

[0044] Figure 5 for Figure 2 Schematic diagram of the structure when the external drug storage tube is not assembled;

[0045] Figure 6 for Figure 5 A schematic diagram of the cross-sectional structure of;

[0046] Figure 7 for Figure 5 Schematic diagram of the structure when only the inner drug storage tube is cut;

[0047] Figure 8 for Figure 2 Schematic diagram of the structure after the vent pipe passes through the extrusion chamber;

[0048] Figure 9 for Figure 1 A magnified schematic diagram of the local structure at B in the middle;

[0049] Figure 10 for Figure 9 A schematic cross-sectional structure diagram of ;

[0050] Figure 11 This is a schematic diagram of the overall structure of the present invention when the positioning prompt component and the ventilation pipe are not assembled;

[0051] Figure 12 It is a schematic diagram of the structure of the prompt structure;

[0052] Figure 13 is a structural schematic diagram of the positioning structure;

[0053] In the figure, 1 is the front-end anesthetic component; 11 is the internal medicine storage tube; 111 is the inspection cavity; 112 is the internal medicine storage cavity; 113 is the traction cavity; 114 is the spraying direction; 12 is the endoscope; 13 is the atomizing component; 131 is the lead wire; 14 is the traction component; 2 is the peripheral anesthetic component; 21 is the external medicine storage tube; 211 is the external medicine storage cavity; 2111 is the medicine release channel; 212 is the guiding cavity; 213 is the extrusion cavity; 22 is the ventilation tube; 221 is the identification component; 3 is the positioning and prompting component; 31 is the positioning structure; 311 is the bite groove; 312 is the insertion channel; 313 is the restraint hole; 32 is the prompting structure; 321 is the detection component; 322 is the sounding component; 323 is the connecting ring. Detailed implementation manners

[0054] The technical solutions in the embodiments of the present invention are clearly and completely described below through specific specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Without conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

[0055] An oral topical anesthesia ventilation intubation device, as Figures 1-13 shown, includes a front-end anesthetic component 1 for releasing topical anesthetics to the easily irritated parts in the patient's oral cavity and a peripheral anesthetic component 2 for releasing topical anesthetics to other parts in the patient's oral cavity, specifically including: an internal medicine storage tube 11, with an internal medicine storage cavity 112 provided inside it, an atomizing component 13 is arranged in the internal medicine storage cavity 112, and the fluid in the internal medicine storage cavity 112 can be separated from the internal medicine storage tube 11 through the atomizing component 13 along a spraying direction 114; an external medicine storage tube 21, which is provided with a guiding cavity 212 and an extrusion cavity 213 along its own central axis, the external medicine storage tube 21 can be sleeved outside the internal medicine storage tube 11 through the guiding cavity 212 and reciprocate along the central axis of the internal medicine storage tube 11; an external medicine storage cavity 211 is arranged around the inner wall of the extrusion cavity 213, and a medicine release channel 2111 is arranged between the external medicine storage cavity 211 and the outer wall of the external medicine storage tube 21, and the fluid in the external medicine storage cavity 211 can be separated from the external medicine storage tube 21 through the medicine release channel 2111.

[0056] An oral topical anesthesia ventilation intubation device, as Figures 1-13As shown in the figure, a viewing cavity 111 is provided along the central axis of the internal medicine storage tube 11. A viewing mirror 12 is connected inside the viewing cavity 111. One end of the viewing mirror 12 is arranged inside the viewing cavity 111, and the other end of the viewing mirror 12 is electrically connected to an external device, so that a doctor can observe the tissue structure inside the patient's oral cavity. Along the central axis of the internal medicine storage tube 11, the length of the viewing mirror 12 is greater than the length of the internal medicine storage tube 11, so that one end of the viewing mirror 12 facing away from the spraying direction 114 can be exposed outside the internal medicine storage tube 11, which is beneficial to the connection between the viewing mirror 12 and the external device. The outer diameter of the viewing mirror 12 is not less than the inner diameter of the viewing cavity 111, and the viewing mirror 12 is in interference fit or transition fit with the viewing cavity 111 to prevent the viewing mirror 12 from detaching from the viewing cavity 111 during use. A lighting structure is also provided at one end of the viewing mirror 12 facing the spraying direction 114 to provide illumination when the internal medicine storage tube 11 extends into the patient's oral cavity, facilitating the doctor to capture the image in the spraying direction 114 through the viewing mirror 12.

[0057] In some embodiments of the present application, as Figures 1-13 shown, the atomizing member 13 is specifically a high-frequency oscillation sheet. A lead wire 131 also passes through the internal medicine storage tube 11. One end of the lead wire 131 is connected to the atomizing member 13, and the other end of the lead wire 131 is left outside the internal medicine storage tube 11 facing away from the spraying direction 114 for connection to an external power source. The atomizing member 13 can open and close with the end of the internal medicine storage cavity 112 facing the spraying direction 114. The user can fill the surface anesthetic into the internal medicine storage cavity 112 by opening the atomizing member 13, and block the internal medicine storage cavity 112 with the atomizing member 13 after filling. The high-frequency oscillation sheet will only atomize and spray the liquid medicine in the internal medicine storage cavity 112 through its own micropores through its own through holes after being powered on. The lead wire 131 penetrates into the internal medicine storage cavity 112. Along the central axis direction of the internal medicine storage tube 11, the length of the part of the lead wire 131 in the internal medicine storage tube 11 is greater than the length of the internal medicine storage cavity 112. After the user opens the atomizing member 13, the atomizing member 13 is driven by an external force to move away from the internal medicine storage cavity 112 and stretch the lead wire 131, which can prevent the atomizing member 13 from blocking the internal medicine storage cavity 112 when filling the surface anesthetic, and the connection of the lead wire 131 can also prevent the atomizing member 13 from being lost;

[0058] In some other embodiments of the present application, the lead wire 131 does not penetrate into the internal medicine storage cavity 112.

[0059] In some embodiments of the present application, as Figures 1-13As shown, the inner drug storage tube 11 is provided with a traction cavity 113 along its axis, and a traction member 14 is connected to the traction cavity 113. The end of the traction cavity 113 that is away from the ejection direction 114 is penetrated through the outer wall of the inner drug storage tube 11 and the traction member 14 is left outside the inner drug storage tube 11. Specifically, the traction member 14 is a wire body, and the number of the traction member 14 is at least two; it should be pointed out that the inner drug storage tube 11 itself has a certain elasticity, and the end of the inner drug storage tube 11 facing the deep respiratory tract of the patient is defined as the end. After the operator inserts the inner drug storage tube 11 into the patient's oral cavity, the direction of the end of the inner drug storage tube 11 can be changed by pulling the traction member 14 outward. In this process, the operator inserts the inner drug storage tube 11 into the patient's soft palate while adjusting the direction of the end of the inner drug storage tube 11 in combination with the image feedback from the scope 12, so as to accurately control the movement trajectory of the inner drug storage tube 11 in the patient's mouth, thereby reducing the stimulation to the patient and effectively preventing the patient from choking or vomiting before anesthesia.

[0060] In some embodiments of the present application, Figures 1-13 As shown, the inner drug storage tube 11 is elastic, and the pulling member 14 drives the inner drug storage tube 11 to bend when it moves away from the ejection direction 114, and the inner drug storage tube 11 is straightened when the pulling member 14 is not subjected to external force. There are at least two pulling cavities 113, and the pulling cavities 113 are arranged around the central axis of the inner drug storage tube 11. The user can adjust the direction of the inner drug storage tube 11 in the patient's oral cavity by pulling the pulling members 14 at different positions outward, so that the inner drug storage tube 11 can approach the palate or enter the throat in the patient's curved oral environment.

[0061] In some embodiments of the present application, Figures 1-13 As shown, the number of the traction members 14 is at least the same as the number of the traction chambers 113. The outer diameter of the traction member 14 is smaller than the inner diameter of the traction chamber 113, thereby weakening the friction between the traction member 14 and the traction chamber 113, and reducing the force required by the user to change the direction of the inner drug storage tube 11 by pulling the traction member 14.

[0062] In some embodiments of the present application, Figures 1-13 As shown, the ventilation tube 22 also includes a ventilation tube 22, which is movably arranged in the extrusion chamber 213. When the ventilation tube 22 passes through the extrusion chamber 213 along the gushing direction 114, it squeezes the external drug storage chamber 211 and drives the fluid in the external drug storage chamber 211 to escape from the external drug storage tube 21 through the drug release channel 2111; when the ventilation tube 22 is inserted into the external drug storage tube 21, the surface anesthetic in the external drug storage chamber 211 can be squeezed out, and at the same time, the air flow between the two ends of the external drug storage tube 21 is maintained unobstructed, thereby not affecting the patient's breathing.

[0063] In some embodiments of the present application, Figures 1-13As shown, a plurality of drug release channels 2111 are arranged in an array between each external drug storage cavity 211 and the external drug storage tube 21 along the spraying direction 114; alternatively, each external drug storage cavity 211 is evenly divided into a plurality of drug storage units, and each drug storage unit is communicated with at least one drug release channel 2111.

[0064] In some embodiments of the present application, as Figures 1-13 shown, the end of the drug release channel 2111 facing away from the external drug storage cavity 211 is evenly distributed on the outer wall of the external drug storage tube 21, and when the ventilation tube 22 enters the extrusion cavity 213, it can spray the surface anesthetic into the patient's oral cavity in different directions. The outer diameter of the ventilation tube 22 is smaller than the inner diameter of the extrusion cavity 213, providing a deformation space for the external drug storage cavity 211;

[0065] In some embodiments of the present application, as Figures 1-13 shown, the external drug storage cavity 211 is elastic. When the ventilation tube 22 disengages from the extrusion cavity 213 against the spraying direction 114, the external drug storage cavity 211 expands into the extrusion cavity 213 and inhales the fluid outside the external drug storage tube 21 through the drug release channel 2111. Through this setting, the mixed liquid of saliva and excess surface anesthetic in the patient's oral cavity can be absorbed, preventing the mixed liquid from flowing into the patient's respiratory tract.

[0066] In some embodiments of the present application, as Figures 1-13 shown, it further includes a positioning structure 31. A placement channel 312 is provided through the positioning channel. The inner diameter of the placement channel 312 is not less than the outer diameter of the external drug storage tube 21. A bite groove 311 is further provided on the outer wall of the positioning structure 31; by providing the bite groove 311, the patient's mouth can be kept open, which is beneficial to inserting the internal drug storage tube 11 and the external drug storage tube 21 into the patient's oral cavity. The cross-sectional shape of the placement channel 312 along its central axis is circular. The cross-section of the bite groove 311 along the central axis of the placement channel 312 is elliptical.

[0067] In some embodiments of the present application, as Figures 1-13As shown, it further includes a prompting structure 32, which includes a connecting ring 323, a detecting member 321 and a sounding member 322. The prompting structure 32 and the positioning structure 31 form a positioning and prompting assembly 3. The socket ring can be sleeved on the outer wall of the positioning structure 31, and the sounding member 322 is electrically connected to the detecting member 321; a plurality of identifying members 221 are arranged on the ventilation pipe 22 at equal intervals, and the detecting member 321 is connected to one side of the prompting structure 32 facing the insertion channel 312. When the ventilation pipe 22 moves along its own central axis in the spraying direction 114 and the identifying member 221 is aligned with the detecting member 321, the sounding member 322 emits a sound. A restraining hole 313 is provided through the outer wall of the positioning structure 31 and the insertion channel 312. When the prompting structure 32 is connected to the positioning structure 31, the detecting member 321 passes through the restraining hole 313, and the direction pointed by the detecting member 321 is perpendicular to the central axis of the insertion channel 312; when the patient's teeth bite in the bite groove 311, the positioning of the prompting structure 32 can be achieved. The detecting member 321 is provided with an infrared sensor facing the ventilation pipe 22, and the identifying member 221 is a black patch with a color different from that of the ventilation pipe 22, and other parts of the ventilation pipe 22 are white. When the material color detected by the infrared sensor is black, an electrical signal is sent to the sounding member 322 to make it emit a sound, so that the patient and the doctor can know the insertion situation of the ventilation pipe 22. On the outer wall of the ventilation pipe 22, the intervals between adjacent two sections of the identifying members 221 are the same, which helps the doctor judge the relative position relationship between the inserted end of the ventilation pipe 22 and the patient's upper respiratory tract, and can adjust the ventilation pipe 22 according to its position.

[0068] In some embodiments of the present application, as Figures 1-13 shown, the length of the ventilation pipe 22 is greater than the length of the outer medicine storage pipe 21. The arrangement interval of the identifying members 221 along the central axis of the ventilation pipe 22 is the same as the arrangement interval of the medicine release channels 2111 along the central axis of the outer medicine storage pipe 21. When the ventilation pipe 22 is inserted into the extrusion cavity 213 and passes through each medicine release channel 2111, the sounding member 322 will emit a sound.

[0069] In some embodiments of the present application, as Figures 1-13As shown, the outer medicine storage tube 21 and the inner medicine storage tube 11 are transparent and made of the same material. Specifically, the material of the outer medicine storage tube 21 is medical transparent PP or PVC. The inner medicine storage tube 11, the endoscope 12, the atomization component 13 and the traction wire form the front-end anesthesia component 1. The outer diameter of the front-end anesthesia component 1 is slender, and it can minimize the contact with the patient's oral cavity during the process of extending into the patient's oral cavity, thereby reducing the stimulation to the sensitive points in the patient's oral cavity that have not been anesthetized. The sensitive points in the oral cavity include the soft palate and the upper palate. Moreover, the slender front-end anesthesia component 1 has a diameter of less than 5 mm and can pass through the channel between the epiglottis and the soft palate into the trachea, and then can anesthetize the deeper respiratory tract. The outer medicine storage tube 21 and the ventilation tube 22 form the peripheral anesthesia component 2. After the front-end anesthesia component 1 extends deep into the patient's oral cavity and anesthetizes the sensitive points, the peripheral anesthesia component 2 is sleeved on the inner medicine storage tube 11 and enters the patient's oral cavity, and gradually anesthetizes the tongue, cheeks and other parts in the patient's oral cavity that are not easily stimulated, so as to complete the anesthesia of the patient's oral cavity and local respiratory tract in segments.

[0070] The parts in the patient's oral cavity that need to be anesthetized can be divided into parts that are easily stimulated and parts that can tolerate stimulation. The parts that are easily stimulated are mainly in the patient's palate, soft palate and their surrounding tissues. During use, first insert the inner medicine storage tube 11 into the patient's mouth and extend it towards the patient's palate, and release the atomized topical anesthetic along the spraying direction 114 through the atomization component 13, so that the parts of the patient that are easily stimulated can quickly absorb the topical anesthetic. Sleeve the guiding cavity 212 of the outer medicine storage tube 21 on the outer wall of the inner medicine storage tube 11 and move the outer medicine storage tube 21 along the central axis of the inner medicine storage tube 11 towards the spraying direction 114, so that the outer medicine storage tube 21 gradually penetrates deeper into the patient's oral cavity. When the outer medicine storage tube 21 enters the patient's oral cavity, insert the ventilation tube 22 into the extrusion cavity 213. When the ventilation tube 22 moves in the extrusion cavity 213, the topical anesthetic sprays outwards from the outer medicine storage cavity 211 along the direction of the drug release channel 2111, so as to anesthetize other areas in the patient's oral cavity in segments. After completion, pull out the ventilation tube 22 outwards. At this time, the outer medicine storage cavity 211 expands under its own elastic force and aspirates the mixed liquid in contact with the patient's oral cavity, so as to prevent the mixed liquid of saliva and topical anesthetic from entering the patient's respiratory tract or digestive tract.

Claims

1. An oral topical anesthesia ventilation cannula, characterized in that: include: An inner medicine storage tube, an inner medicine storage cavity is arranged inside the inner medicine storage cavity, an atomizing element is arranged inside the inner medicine storage cavity, and the fluid in the inner medicine storage cavity can be separated from the inner medicine storage tube through the atomizing element in a gushing direction; The outer drug storage tube has a guide cavity and an extrusion cavity along its central axis, and the outer drug storage tube can be sleeved on the outside of the inner drug storage tube through the guide cavity and reciprocate along the central axis of the inner drug storage tube; the inner wall of the extrusion cavity is surrounded by an outer drug storage cavity, and a drug release channel is provided between the outer drug storage cavity and the outer wall of the outer drug storage tube, and the fluid in the outer drug storage cavity can be separated from the outer drug storage tube through the drug release channel; It also includes a vent pipe, which is movably arranged in the extrusion cavity, and when the vent pipe passes through the extrusion cavity in the gushing direction, it squeezes the outer drug storage cavity and drives the fluid in the outer drug storage cavity to leave the outer drug storage tube through the drug release channel; The end of the drug release channel away from the external drug storage cavity is evenly distributed on the outer wall of the external drug storage tube; The outer diameter of the vent pipe is smaller than the inner diameter of the extrusion cavity; The outer medicine storage cavity is elastic. When the ventilation tube is separated from the extrusion cavity in the opposite direction of the gushing, the outer medicine storage cavity expands into the extrusion cavity and absorbs the fluid outside the outer medicine storage tube through the drug release channel.

2. The oral topical anesthesia ventilation cannula according to claim 1, characterized in that: The inner medicine storage tube is provided with an inspection cavity along its axis, and a inspection mirror is connected in the inspection cavity.

3. The oral topical anesthesia ventilation cannula according to claim 2, characterized in that: Along the central axis of the inner drug storage tube, the length of the viewfinder is greater than the length of the inner drug storage tube.

4. The oral topical anesthesia ventilation cannula according to claim 2, characterized in that: The outer diameter of the viewing mirror is not less than the inner diameter of the viewing cavity.

5. The oral topical anesthesia ventilation cannula according to claim 2, characterized in that: An illumination structure is also provided at one end of the viewing mirror facing the gushing direction.

6. The oral topical anesthesia ventilation cannula according to claim 1, characterized in that: The atomizer is specifically a high-frequency oscillator. The inner drug storage tube is also provided with a lead wire, one end of which is connected to the atomizer, and the other end of which is retained outside the inner drug storage tube away from the gushing direction.

7. The oral topical anesthesia ventilation cannula according to claim 6, characterized in that: The atomizing element can be opened and closed with the end portion of the inner medicine storage cavity facing the spraying direction.

8. The oral topical anesthesia ventilation cannula according to claim 6, characterized in that: The lead wire penetrates into the inner drug storage cavity, and along the central axis direction of the inner drug storage tube, the length of the portion of the lead wire in the inner drug storage tube is greater than the length of the inner drug storage cavity.

9. The oral topical anesthesia ventilation cannula according to claim 6, characterized in that: The lead wire does not penetrate into the inner drug storage cavity.

10. The oral topical anesthesia ventilation cannula according to claim 1, characterized in that: The inner drug storage tube is provided with a traction cavity along its axis, a traction piece is connected to the traction cavity, and one end of the traction cavity away from the ejection direction passes through the outer wall of the inner drug storage tube and leaves the traction piece outside the inner drug storage tube.

11. The oral topical anesthesia ventilation cannula according to claim 10, characterized in that: The traction member is a wire body.

12. The oral topical anesthesia ventilation cannula according to claim 10, characterized in that: The inner medicine storage tubes are all elastic. When the traction member moves away from the gushing direction, the inner medicine storage tubes are driven to bend. When the traction member is not subjected to external force, the inner medicine storage tubes are straightened.

13. The oral topical anesthesia ventilation cannula according to claim 10, characterized in that: The number of the traction cavities is at least two, and the traction cavities are arranged around the central axis of the inner drug storage tube.

14. The oral topical anesthesia ventilation cannula according to claim 10, characterized in that: The number of the traction members is at least the same as the number of the traction cavities.

15. The oral topical anesthesia ventilation cannula according to claim 10, characterized in that: The outer diameter of the traction member is smaller than the inner diameter of the traction cavity.

16. The oral topical anesthesia ventilation cannula according to claim 1, characterized in that: A plurality of drug release channels are arranged in an array along the gushing direction between each of the external drug storage cavities and the external drug storage tubes.

17. The oral topical anesthesia ventilation cannula according to claim 1, characterized in that: Each of the outer drug storage cavities is evenly divided into a plurality of drug storage units, and each of the drug storage units is connected to at least one drug release channel.

18. The oral topical anesthesia ventilation cannula according to claim 1, characterized in that: It also includes a positioning structure, wherein the positioning structure is provided with an insertion channel, the inner diameter of the insertion channel is not less than the outer diameter of the outer drug storage tube, and an engagement groove is also provided on the outer wall of the positioning structure.

19. The oral topical anesthesia ventilation cannula according to claim 18, characterized in that: The cross-sectional shape of the insertion channel along its central axis is circular.

20. The oral topical anesthesia ventilation cannula according to claim 18, characterized in that: The cross section of the engagement groove along the central axis of the insertion channel is elliptical.

21. The oral topical anesthesia ventilation cannula according to claim 18, characterized in that: It also includes a prompt structure, which includes a connecting ring, a detection piece and a sound speaker. The connecting ring can be sleeved on the outer wall of the positioning structure, and the sound speaker is electrically connected to the detection piece. A plurality of identification pieces are arranged on the ventilation pipe and the intervals between the identification pieces are the same. The detection piece is connected to the side of the prompt structure facing the insertion channel. When the ventilation pipe moves along its own central axis in the gushing direction and the identification piece is aligned with the detection piece, the sound speaker makes a sound.

22. The oral topical anesthesia ventilation cannula according to claim 21, characterized in that: A constraint hole is provided between the outer wall of the positioning structure and the insertion channel. When the prompt structure is connected to the positioning structure, the detection member passes through the constraint hole, and the detection member points perpendicular to the central axis of the insertion channel.

23. The oral topical anesthesia ventilation cannula according to claim 21, characterized in that: The length of the ventilation tube is greater than the length of the external medicine storage tube.

24. The oral topical anesthesia ventilation cannula according to claim 21, characterized in that: The arrangement interval of the identification members along the central axis of the ventilation tube is the same as the arrangement interval of the drug release channels along the central axis of the external drug storage tube.

25. The oral topical anesthesia ventilation cannula according to claim 1, characterized in that: The outer drug storage tube and the inner drug storage tube are transparent.

26. The oral topical anesthesia ventilation cannula according to claim 1, characterized in that: The outer drug storage tube and the inner drug storage tube are made of the same material.

Images