Intraoral protective device for trachea cannula or pharyngoscope examination

Abstract

The invention discloses an intra-oral protection device for trachea cannula or pharyngoscope examination, and relates to the technical field of medical instruments, the intra-oral protection device comprises a tooth protection sleeve, a guide element and an expansion element, the tooth protection sleeve is used for being placed in the oral cavity of a patient, and the tooth protection sleeve is used for protecting upper teeth and lower teeth of the patient; the guide element is installed in the middle of the tooth protection sleeve, the expansion element is installed between the periphery of the guide element and the tooth protection sleeve, the expansion element can drive the tooth protection sleeve to be opened or closed, and the guide element is used for a trachea cannula or a pharyngoscope to penetrate through. The mouth opener can assist a general anesthesia patient in mouth opening, the tongue body of the patient is prevented from affecting operation, and meanwhile the teeth of the patient are protected.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to an intraoral protection device for tracheal intubation or laryngoscopy examination. Background Art

[0002] For patients who have undergone general anesthesia, during the operation of tracheal intubation or laryngoscopy examination, due to the patient's inability to actively open the mouth, the doctor's field of vision is affected; moreover, since the patient is in an anesthetic state, the patient's tongue falls backward during anesthesia, which is likely to affect the doctor's normal operation; on the other hand, during the operation, the instruments are prone to bump and damage the patient's teeth. Summary of the Invention

[0003] The object of the present invention is to provide an intraoral protection device for tracheal intubation or laryngoscopy examination to solve the problems existing in the above-mentioned prior art, realize assisting the general anesthesia patient to open the mouth, avoid the influence of the patient's tongue on the operation, and at the same time protect the patient's teeth.

[0004] To achieve the above object, the present invention provides the following solutions: The present invention provides an intraoral protection device for tracheal intubation or laryngoscopy examination, including a tooth protection sleeve, a guiding element, and an expanding element. The tooth protection sleeve is used to be placed in the patient's mouth and is used to protect the patient's upper teeth and lower teeth. The guiding element is installed in the middle of the tooth protection sleeve, and the expanding element is installed between the outer periphery of the guiding element and the tooth protection sleeve. The expanding element can drive the tooth protection sleeve to open or close, and the guiding element is used for the tracheal intubation or laryngoscope to pass through.

[0005] In one embodiment, the tooth protection sleeve includes an upper tooth protection sleeve and a lower tooth protection sleeve. The upper tooth protection sleeve is used to cover the inner and outer sides of the patient's upper teeth, and the lower tooth protection sleeve is used to cover the inner and outer sides of the patient's lower teeth. One side of the upper tooth protection sleeve is connected to one side of the lower tooth protection sleeve to form a connection point, and the other side of the upper tooth protection sleeve and the other side of the lower tooth protection sleeve can rotate around the connection point in the direction of approaching or moving away from each other.

[0006] In one embodiment, a lining is provided inside the groove of the upper tooth protection sleeve and inside the groove of the lower tooth protection sleeve. The lining is made of a soft material and is used to contact the patient's teeth.

[0007] In one embodiment, the guiding element is a guiding tube. The upper side of the guiding tube is connected to the lower end surface of the upper tooth protection sleeve through the expanding element, and the lower side of the guiding tube is connected to the upper end surface of the lower tooth protection sleeve through the expanding element.

[0008] In one embodiment, in the direction from the outside of the patient's oral cavity to the inside of the patient's oral cavity, the diameter of the guiding tube gradually decreases, and the minimum inner diameter of the guiding tube is greater than the outer diameter of the tracheal intubation tube and the outer diameter of the laryngoscope.

[0009] In one embodiment, the guiding tube includes a front section tube and a rear section tube. The outer wall of the front section tube is connected to the upper tooth protection sleeve and the lower tooth protection sleeve through the expansion element. The rear section tube is bent, and the outer wall of the rear section tube is used to press the patient's tongue body and extend towards the patient's throat.

[0010] In one embodiment, the cross-section of the front section tube is circular, and the cross-section of the rear section tube is flat.

[0011] In one embodiment, the expansion element includes two expansion units. The two expansion units respectively cover the lower end of the upper tooth protection sleeve and the upper end of the lower tooth protection sleeve, and the two expansion units are respectively connected to the upper and lower sides of the guiding element.

[0012] In one embodiment, the expansion unit is an expansion airbag. The expansion airbag can expand or contract, and drive the upper tooth protection sleeve and the lower tooth protection sleeve to open or close.

[0013] In one embodiment, an air valve is provided on the expansion airbag, and the inflation and deflation of the expansion airbag can be realized through the air valve.

[0014] The present invention has achieved the following technical effects compared with the prior art: The oral cavity protection device for tracheal intubation or laryngoscope examination provided by the present invention includes a tooth protection sleeve, a guiding element and an expansion element. The tooth protection sleeve is used to be placed in the patient's oral cavity, and the tooth protection sleeve is used to protect the patient's upper teeth and lower teeth to avoid the tracheal intubation tube or laryngoscope knocking against the patient's upper teeth or lower teeth during tracheal intubation or laryngoscope examination, thereby damaging the patient's teeth. The guiding element is installed in the middle of the tooth protection sleeve. The guiding element is used for the tracheal intubation tube or laryngoscope to pass through, and then the tracheal intubation tube or laryngoscope is guided through the guiding element to improve the operation efficiency. At the same time, since the tracheal intubation tube or laryngoscope is protected inside the guiding element, it is further avoided that the tracheal intubation tube or laryngoscope knocks against the patient's teeth, improving the protection effect on the patient's teeth. And the guiding element can press the patient's tongue body to avoid the patient's tongue body affecting subsequent operations. The expansion element is installed between the outer periphery of the guiding element and the tooth protection sleeve, and then the expansion element is used to drive the tooth protection sleeve to open or close. When it is necessary to insert a tracheal intubation tube into a general anesthesia or unconscious patient, or it is necessary to perform a laryngoscope examination on a general anesthesia or unconscious patient, the expansion element is used to assist the patient in opening the mouth for subsequent operations. When it is necessary to take out the whole, the expansion element is used to close the tooth protection sleeve for easy removal. Brief Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a schematic structural diagram of the intraoral protection device for tracheal intubation or laryngoscopy examination in the present invention; Figure 2 It is a schematic structural diagram of the intraoral protection device for tracheal intubation or laryngoscopy examination in the present invention when the guiding element is omitted; Figure 3 It is a schematic structural diagram of the tooth protection sleeve in the present invention; Figure 4 It is a schematic structural diagram of the guiding element in the present invention; In the figure: 1 - tooth protection sleeve, 2 - guiding element, 3 - expansion element, 4 - upper tooth protection sleeve, 5 - lower tooth protection sleeve, 6 - inner lining, 7 - air valve. Detailed Description of the Invention

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0018] The purpose of the present invention is to provide an intraoral protection device for tracheal intubation or laryngoscopy examination to solve the problems existing in the prior art, realize assisting the general anesthesia patient to open the mouth, avoid the influence of the patient's tongue body on the operation, and at the same time protect the patient's teeth.

[0019] To make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0020] Such as Figures 1 - 4As shown in the figure, this embodiment provides an oral protection device for endotracheal intubation or laryngoscopy, including a tooth protector 1, a guiding element 2, and an expanding element 3. The tooth protector 1 is used to be placed in the patient's oral cavity and is used to protect the patient's upper and lower teeth to avoid the endotracheal tube or laryngoscope bumping against the patient's upper or lower teeth during endotracheal intubation or laryngoscopy, thereby damaging the patient's teeth. The guiding element 2 is installed in the middle of the tooth protector 1 and is used for the endotracheal tube or laryngoscope to pass through, thereby guiding the endotracheal tube or laryngoscope through the guiding element 2 to improve the operation efficiency. At the same time, since the endotracheal tube or laryngoscope is protected within the guiding element 2, it further avoids the endotracheal tube or laryngoscope bumping against the patient's teeth and improves the protection effect on the patient's teeth. Moreover, the guiding element 2 can press down the patient's tongue body to avoid the patient's tongue body affecting subsequent operations. The expanding element 3 is installed between the outer periphery of the guiding element 2 and the tooth protector 1, and the expanding element 3 is used to drive the tooth protector 1 to open or close. When it is necessary to insert an endotracheal tube into a general anesthesia or unconscious patient, or when it is necessary to perform laryngoscopy on a general anesthesia or unconscious patient, the expanding element 3 is used to assist the patient in opening the mouth for subsequent operations. When it is necessary to take out the whole device, the expanding element 3 is used to close the tooth protector 1 for easy removal.

[0021] As a specific implementation manner in this embodiment, the tooth protector 1 includes an upper tooth protector 4 and a lower tooth protector 5. One side of the upper tooth protector 4 is connected to one side of the lower tooth protector 5 to form a connection point, and the other side of the upper tooth protector 4 and the other side of the lower tooth protector 5 can rotate around the connection point in directions away from or close to each other to realize the opening or closing of the tooth protector 1, thereby realizing assisting the patient in opening the mouth or removing the tooth protector 1 from the patient's oral cavity.

[0022] As a specific implementation manner in this embodiment, the upper tooth protector 4 is used to cover the inner and outer sides of the patient's upper teeth, and the lower tooth protector 5 is used to cover the inner and outer sides of the patient's lower teeth, thereby playing a good role in protecting the patient's upper and lower teeth. As a preferred solution, the upper tooth protector 4 can protect ten upper teeth of the patient, that is, the coverage range of the upper tooth protector 4 is from the patient's two upper front teeth, counting four teeth to both sides respectively. The lower tooth protector 5 can protect ten lower teeth of the patient, that is, the coverage range of the lower tooth protector 5 is from the patient's two lower front teeth, counting four teeth to both sides respectively. Since the patient's posterior teeth actually do not need to be protected, through the above design, it can effectively protect the patient's teeth while reducing the design cost.

[0023] As a specific implementation manner in this embodiment, the main structures of the upper tooth protector 4 and the lower tooth protector 5 are made of plastic, and the main structures are both in the shape of a groove, which conforms to the shape of the anterior dental arch. The inner width of the groove is preferably 0.4 cm to 0.8 cm. An inner liner 6 is provided inside the groove of the upper tooth protector 4 and inside the groove of the lower tooth protector 5 respectively, and the inner liner 6 is used to contact the patient's teeth. The inner liner 6 is made of a soft material, preferably silicone material, with a soft texture, which can play a protective role. At the same time, silicone is a soft and deformable material, so it can better fit the patient's teeth to adapt to different tooth shapes. And the texture of the groove is relatively hard, which can play a supporting and protective role, making the tooth protector 1 more solid and avoiding damage to the teeth caused by tools.

[0024] As a specific implementation manner in this embodiment, the size designs of the upper tooth protector 4 and the lower tooth protector 5 are both 5 cm to 10 cm in length, 1 cm to 2 cm in width, and 0.5 cm to 1 cm in height. Those skilled in the art can also make adaptive adjustments to their sizes according to actual needs.

[0025] As a specific implementation manner in this embodiment, the guiding element 2 is a guiding tube. The inside of the guiding tube is used for passing through an endotracheal tube or a laryngoscope. The upper side of the guiding tube is connected to the lower end surface of the upper tooth protector 4 through the expanding element 3, and the lower side of the guiding tube is connected to the upper end surface of the lower tooth protector 5 through the expanding element 3. Thus, while realizing the connection and fixation between the guiding tube and the tooth protector 1, it is also convenient to drive the opening and closing of the tooth protector 1 through the expanding element 3.

[0026] As a specific implementation manner in this embodiment, in the direction from the outside of the patient's oral cavity to the inside of the patient's oral cavity, the diameter of the guiding tube gradually decreases. Thus, the outer end of the guiding tube has a larger diameter, which is convenient for the insertion of the endotracheal tube and the laryngoscope. The inner end of the guiding tube has a smaller diameter, which plays a role in limiting the endotracheal tube and the laryngoscope. At the same time, it adapts to the narrow pharynx of the patient and reduces the discomfort of the patient. The minimum inner diameter of the guiding tube is larger than the outer diameter of the endotracheal tube and the outer diameter of the laryngoscope, ensuring the smooth passage of the endotracheal tube and the laryngoscope. As a preferred solution, in the actual application process, the oral cavity protection device for endotracheal intubation or laryngoscopy examination provided in this embodiment can be designed into various models, so as to be able to adapt to different age groups and improve the scope of application.

[0027] As a specific implementation manner in this embodiment, the guiding tube includes a front section tube and a rear section tube. The overall length of the guiding tube is preferably 10 cm to 15 cm. Among them, the front section tube accounts for 2 / 3 of the overall length, and the rear section tube accounts for 1 / 3 of the overall length. Moreover, the diameter of the front section tube is designed to be 1 cm to 2 cm. The outer wall of the front section tube is connected to the upper tooth protection sleeve 4 and the lower tooth protection sleeve 5 through the expansion element 3. The rear section tube is in a bent shape, and the bending angle is preferably 90° to 120°. And the outer wall of the rear section tube is used to press the patient's tongue body and extend towards the patient's throat, so as to provide a good guiding effect for tracheal intubation and laryngoscope.

[0028] As a specific implementation manner in this embodiment, the cross-section of the front section tube is circular, which is convenient for the tracheal intubation and the laryngoscope to be inserted into the front section tube. The cross-section of the rear section tube is flat, which not only adapts to the trend of the patient's throat, but also can limit the tongue body of the patient. That is, when the rear section tube contacts the upper end face of the patient's tongue body, it can provide a force towards the outside of the oral cavity to the tongue body to cope with the problem that the tracheal intubation and the downward movement of the laryngoscope are affected due to the posterior displacement of the tongue body.

[0029] As a specific implementation manner in this embodiment, the expansion element 3 includes two expansion units. The two expansion units respectively cover the lower end of the upper tooth protection sleeve 4 and the upper end of the lower tooth protection sleeve 5. And the two expansion units are respectively connected to the upper and lower sides of the guiding element 2. Furthermore, while realizing the connection of the guiding element 2 to the tooth protection sleeve 1, the two expansion units can respectively apply forces to the upper tooth protection sleeve 4 and the lower tooth protection sleeve 5 to drive the upper tooth protection sleeve 4 and the lower tooth protection sleeve 5 to move respectively, so as to realize the opening and closing of the tooth protection sleeve 1.

[0030] As a specific implementation manner in this embodiment, the expansion unit is an expansion airbag. The expansion airbag can expand or contract and drive the upper tooth protection sleeve 4 and the lower tooth protection sleeve 5 to open or close. The specific principle is that when the expansion airbag is inflated and expands, the front end of the expansion airbag drives the front end of the upper tooth protection sleeve 4 to move away from the guiding element 2, and the front end of the lower tooth protection sleeve 5 to move away from the guiding element 2. Furthermore, the front ends of the upper tooth protection sleeve 4 and the lower tooth protection sleeve 5 move away from each other, realizing the opening of the tooth protection sleeve 1, thereby assisting the patient to open the mouth. At the same time, it can make the whole more conform to the patient's oral cavity and make the intubation operation or laryngoscope examination operation more convenient and unobstructed. On the contrary, when the expansion airbag contracts, the front end of the expansion airbag drives the front end of the upper tooth protection sleeve 4 to move closer to the guiding element 2, and the front end of the lower tooth protection sleeve 5 to move closer to the guiding element 2. Furthermore, the front ends of the upper tooth protection sleeve 4 and the lower tooth protection sleeve 5 move closer to each other, realizing the closing of the tooth protection sleeve 1, thereby facilitating the removal of the tooth protection sleeve 1 through the patient's oral cavity. Preferably, other structures can also be selected for the expansion unit as long as it can cooperate with the tooth protection sleeve 1 to assist the patient to open the mouth.

[0031] As a specific implementation manner in this embodiment, an air valve 7 is provided on the expansion airbag. Through the air valve 7, the inflation and deflation of the expansion airbag can be realized, so as to achieve the inflation and expansion or deflation and contraction of the expansion airbag, and thus realize the opening and closing of the tooth protector 1. At the same time, due to the setting of the expansion airbag, there is a certain space between the patient's teeth and the guide tube after the expansion airbag is inflated, so that operating instruments and the like will not touch the teeth at all, fundamentally solving the problem of easily damaging the teeth, that is, completely isolating the teeth and playing a protective role.

[0032] The specific usage method of the oral protection device for tracheal intubation or laryngoscopy provided in this embodiment is as follows: When tracheal intubation or laryngoscopy needs to be performed on a general anesthesia patient or an unconscious patient: S1. An assistant selects an oral protection device for tracheal intubation or laryngoscopy with a suitable model according to the patient's oral cavity size, and puts the selected oral protection device for tracheal intubation or laryngoscopy into the patient's mouth. If one end of the guide tube is exactly behind the root of the tongue and the opening is normal after being put in place, it is appropriate; otherwise, change the model until it is appropriate. After selecting the model, put the oral protection device for tracheal intubation or laryngoscopy into the patient's oral cavity. At this time, both expansion airbags are in a contracted state, and the tooth protector 1 is in a closed state (not completely closed, so a guide tube is also fixed between the upper tooth protector 4 and the lower tooth protector 5), which is convenient for putting the tooth protector 1 into the patient's oral cavity. Align the upper tooth protector 4 and sleeved on the inner and outer sides of the patient's upper teeth, align the lower tooth protector 5 and sleeved on the inner and outer sides of the patient's lower teeth, and finely adjust the angle of the guide tube. Inflate the two expansion airbags through the air valve 7 in sequence, so that the expansion airbags are inflated. At the same time, during the inflation process, always observe the inflation degree of the expansion airbags. As the expansion airbags expand, drive the tooth protector 1 to open, and then assist the patient to open the mouth until it is opened in place, and then stop inflating the expansion airbags. Insert the tracheal intubation or laryngoscope into the guide tube through the larger-diameter end of the guide tube, and enter the patient's throat under the guiding action of the guide tube. After the operation is completed and the tooth protector 1 needs to be removed, deflate the two expansion airbags through the air valve 7, so that the expansion airbags contract and drive the tooth protector 1 to close, so as to facilitate the removal of the tooth protector 1 from the patient's oral cavity. At the same time, the patient's mouth also closes due to the loss of support.

[0033] Through the above design, this embodiment is convenient to operate and has a simple structure. It realizes assisting anesthetized patients or unconscious patients to open their mouths through the cooperation of the expansion airbag and the tooth protector 1, protects the patient's teeth through the cooperation of the tooth protector 1 and the guiding tube, and avoids the influence of the patient's tongue on the operation through the shape design of the guiding tube, which is convenient for popularization and use.

[0034] The embodiments described above are merely illustrative, and some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative work.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An oral protection device for endotracheal intubation or laryngoscopy, characterized in that: It includes a tooth protector, a guiding element, and an expanding element. The tooth protector is used to be placed in the patient's oral cavity and is used to protect the patient's upper teeth and lower teeth. The guiding element is installed in the middle of the tooth protector, and the expanding element is installed between the outer periphery of the guiding element and the tooth protector. The expanding element can drive the tooth protector to open or close, and the guiding element is used for the passage of an endotracheal tube or a laryngoscope.

2. The oral protective device for endotracheal intubation or laryngoscopy according to claim 1, wherein: The tooth protector includes an upper tooth protector and a lower tooth protector. The upper tooth protector is used to cover the inner and outer sides of the patient's upper teeth, and the lower tooth protector is used to cover the inner and outer sides of the patient's lower teeth. One side of the upper tooth protector is connected to one side of the lower tooth protector to form a connection point, and the other side of the upper tooth protector and the other side of the lower tooth protector can rotate around the connection point in the direction of approaching or moving away from each other.

3. The oral protection device for endotracheal intubation or laryngoscopy according to claim 2, characterized in that: A lining is provided inside the groove of the upper tooth protector and inside the groove of the lower tooth protector respectively. The lining is made of a soft material and is used to contact the patient's teeth.

4. The oral protection device for tracheal intubation or laryngoscopy according to claim 2, characterized in that: The guiding element is a guiding tube. The upper side of the guiding tube is connected to the lower end surface of the upper tooth protector through the expanding element, and the lower side of the guiding tube is connected to the upper end surface of the lower tooth protector through the expanding element.

5. The oral protective device for endotracheal intubation or laryngoscopy according to claim 4, characterized in that: In the direction from the outside of the patient's oral cavity to the inside of the patient's oral cavity, the diameter of the guiding tube gradually decreases, and the minimum inner diameter of the guiding tube is larger than the outer diameter of the endotracheal tube and the outer diameter of the laryngoscope.

6. The oral cavity protection device for endotracheal intubation or laryngoscopy according to claim 5, wherein: The guiding tube includes a front section tube and a rear section tube. The outer wall of the front section tube is connected to the upper tooth protector and the lower tooth protector through the expanding element. The rear section tube is curved, and the outer wall of the rear section tube is used to press against the patient's tongue body and extend towards the patient's throat.

7. The oral protection device for endotracheal intubation or laryngoscopy according to claim 6, characterized in that: The cross-section of the front section tube is circular, and the cross-section of the rear section tube is flat.

8. The intraoral protective device for endotracheal intubation or laryngoscopy according to claim 2, characterized in that: The expanding element includes two expanding units. The two expanding units respectively cover the lower end of the upper tooth protector and the upper end of the lower tooth protector, and the two expanding units are respectively connected to the upper and lower sides of the guiding element.

9. The oral protection device for endotracheal intubation or laryngoscopy according to claim 8, characterized in that: The expanding unit is an expanding airbag. The expanding airbag can expand or contract and drive the upper tooth protector and the lower tooth protector to open or close.

10. The oral protection device for endotracheal intubation or laryngoscopy according to claim 9, characterized in that: An air valve is provided on the expanding airbag, and the inflation and deflation of the expanding airbag can be achieved through the air valve.

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