Multifunctional bite
By integrating oxygen inhalation and end-expiration carbon dioxide monitoring functions in the mouth bite device and combining flexible and hard support structures, the problem of oxygen inhalation and tracheal fixation in the prior art is solved, and the safety and comfort of gastroscopy and TEE examination are improved.
Patent Information
- Application Number
- CN202422150757.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-03
AI Technical Summary
Existing mouth-biting equipment cannot achieve oxygen inhalation and end-expiratory carbon dioxide monitoring during gastroscopy and TEE examination, and cannot effectively fix the tracheal intubation, resulting in clinical inconvenience and potential risk of damage.
A multi-functional mouth bite is designed, including an oxygen inhalation chamber and an exhalation collection chamber, equipped with a carbon dioxide monitoring interface, and a catheter fixing groove and fixing ring are set on the side, and flexible materials are used to combine with a hard support tube to ensure comfort and safety.
The oxygen inhalation and end-expiratory carbon dioxide monitoring during gastroscopy operation is achieved without increasing costs, reducing the risk of tracheal intubation, reducing the risk of patient injury, and improving the safety and comfort of the operation.
Smart Images
Figure CN223126664U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of medical instruments, in particular to a multifunctional mouthpiece. Background Art
[0002] Both gastroscopy and TEE examination require a bite. The bite setting of the operating mouth can prop open the patient's upper and lower teeth to avoid damage to the gastroscope and TEE probe.
[0003] Currently, mouth-biting cannot achieve oxygen inhalation and end-tidal carbon dioxide monitoring during gastroscopy, and cannot meet higher clinical needs; it cannot achieve effective fixation of the endotracheal tube during TEE examination, which brings inconvenience to clinical practice. Summary of the invention
[0004] In view of the above-mentioned defects of the prior art, the utility model provides a multifunctional mouthpiece, including a mouthpiece body, wherein an operation port is arranged along the long axis of the mouthpiece body, and the characteristic is that an oxygen inhalation chamber and / or an exhalation collection chamber is arranged on the side of the operation port and along the long axis of the mouthpiece body, and a carbon dioxide monitoring interface is arranged at the tail of the exhalation collection chamber.
[0005] The oxygen outlet at the head end of the oxygen inhalation chamber is arranged behind the exhalation sampling port at the head end of the exhalation collection chamber.
[0006] The distance between the oxygen outlet and the exhaled breath sampling port is greater than 3cm.
[0007] The oxygen inhalation cavity is connected to an oxygen supply tube, and an oxygen supply interface is arranged at the tail of the oxygen supply tube.
[0008] The tail of the exhaled air collection chamber is connected to an exhaled air collection tube, and a carbon dioxide monitoring interface is arranged at the tail of the exhaled air collection tube; a matching detachable connection port is arranged between the tail of the exhaled air collection chamber and the exhaled air collection tube.
[0009] The mouthpiece body is provided with a catheter fixing groove along the long axis at the side of the operation port; and a catheter fixing ring is provided at the other side of the operation port corresponding to the catheter fixing groove.
[0010] The catheter fixing groove and / or the catheter fixing ring are in the same plane as the central axis of the operation port, forming an angle of 5-20 degrees.
[0011] The tail of the oxygen inhalation chamber and / or the exhalation collection chamber protrudes from the lip blocking surface of the mouthpiece body to form an operating handle, and the height of the operating handle is greater than 1.5 cm.
[0012] The outer side surface of the operating handle is adjacent to or parallel to the inner side surface of the catheter fixing groove as a groove side surface.
[0013] The mouthpiece body is made of flexible material, and a hard support tube is matched and arranged in the operating mouth.
[0014] Beneficial effects of the utility model:
[0015] 1. Achieve oxygen inhalation or / and end-tidal carbon dioxide monitoring during gastroscopy operation without increasing costs.
[0016] 2. Achieve effective fixation of endotracheal intubation during TEE examination without increasing costs, and reduce the risk of endotracheal tube dislodgment.
[0017] 3. Hard on the outside and soft on the inside, with good support, reducing damage to the patient's teeth and lips.
[0018] 4. The oxygen outlet is behind the exhalation sampling port, reducing the interference of oxygen on exhalation sampling during exhalation.
[0019] 5. When the patient has glossoptosis after anesthesia, a nasopharyngeal airway can be inserted into the oral cavity through the catheter fixing ring, acting as an oropharyngeal airway to reduce damage to the nasal mucosa. Description of the Drawings
[0020] Figure 1 It is a structural diagram of the first perspective of the first embodiment of the present utility model;
[0021] Figure 2 It is a structural diagram of the second perspective of the first embodiment of the present utility model;
[0022] Figure 3 It is a structural diagram of the third perspective of the first embodiment of the present utility model;
[0023] Figure 4 It is a structural diagram of the fourth perspective of the first embodiment of the present utility model;
[0024] Figure 5 It is a schematic structural diagram of the second embodiment of the present utility model;
[0025] Figure 6 It is a cross-sectional view of the mouth bite body of the present utility model;
[0026] In the figure,
[0027] 1. Oxygen inhalation cavity; 11. Oxygen outlet; 12. Oxygen supply tube; 13. Oxygen supply interface; 2. Exhalation collection cavity; 21. Carbon dioxide monitoring interface; 22. Exhalation sampling port; 23. Exhalation collection tube; 31. Catheter fixing groove; 32. Catheter fixing ring; 4. Operation handle;
[0028] Figure 6 In it, A is the central axis of the catheter fixing groove 31, B is the central axis of the operation port, C is the central axis of the catheter fixing ring, a is the included angle between A and B, and b is the included angle between B and C. Detailed Embodiments
[0029] To enable those skilled in the art to better understand the technical solution of the present utility model and make the above-mentioned features, objectives, and advantages of the present utility model clearer and easier to understand, the present utility model will be further described below in conjunction with embodiments. The embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model.
[0030] A common oral bite includes an oral bite body. The oral bite body is provided with an operation opening along the long axis. A tongue blocking plate is provided at the head end of the oral bite body, and baffles are provided on both sides of the corresponding tooth row biting part. The operation opening is used to open the tooth row to insert a gastroscope or a TEE probe to avoid tooth bite injury. The tongue blocking plate blocks the tongue body to facilitate operation. The baffles block the upper and lower tooth rows to avoid the oral bite body coming out of the oral cavity or entering the oral cavity too deeply.
[0031] As Figures 1-5 shown, on the side of the operation opening of the oral bite body of the present utility model, an oxygen inhalation cavity 1 and / or an exhaled gas collection cavity 2 are / is provided through the long axis. The oxygen inhalation cavity 1 serves as an oxygen supply channel and is used for oxygen inhalation after being connected to oxygen; the exhaled gas collection cavity 2 serves as a respiratory gas monitoring and sampling channel. A carbon dioxide monitoring interface 21 is connected and provided at the tail of the exhaled gas collection cavity 2. By matching with the carbon dioxide sampling tube interface through the carbon dioxide monitoring interface 21, connecting the sampling tube, and connecting the sampling tube to a carbon dioxide monitor, the carbon dioxide in the exhaled gas of the patient can be monitored, thereby judging the respiratory state of the patient, such as respiratory depression, hyperventilation, etc.
[0032] As Figure 3 shown, the oxygen outlet 11 at the head end of the oxygen inhalation cavity 1 is arranged behind the exhaled gas sampling port 22 at the head end of the exhaled gas collection cavity 2. Monitoring of end-tidal carbon dioxide mainly monitors the carbon dioxide content in the exhaled gas of the patient. When exhaling, the flow direction of the exhaled gas of the patient is from the glottis of the patient to the oral and nasal openings of the patient. At this time, the oxygen released from the oxygen inhalation cavity 1 is in the opposite direction to this direction. After the oxygen exits the oxygen outlet 11, it quickly turns under the action of the exhaled gas flow and becomes in the same direction as the exhaled gas, and is discharged through the oral and nasal cavities. The exhaled gas sampling port 22 at the head end of the exhaled gas collection cavity 2 is arranged in front of the oxygen outlet 11 at the head end of the oxygen inhalation cavity 1, and contacts the exhaled gas of the patient first, reducing the mixing and dilution of the exhaled gas by the oxygen released from the oxygen outlet 11, thereby interfering with the monitoring of the carbon dioxide partial pressure of the exhaled gas. The smaller the oxygen flow rate, the smaller the velocity of the oxygen released, the easier it is to turn, and the better the interference avoidance effect.
[0033] The farther the distance between the oxygen outlet 11 and the exhaled gas sampling port 22, the larger the space left for the oxygen to turn, and the better the effect of avoiding the mixing and dilution of the exhaled gas by the oxygen. The general oxygen inhalation concentration for clinical painless gastroscopy is 2 - 5 L / min. When the distance between the oxygen outlet 11 and the exhaled gas sampling port 22 is greater than 3 cm, even if the oxygen flow rate is greater than 7 L / min, this interference is basically avoided.
[0034] As Figure 5As shown, the oxygen inhalation cavity 1 is connected to an oxygen supply pipe 12, and an oxygen supply interface 13 is provided at the tail of the oxygen supply pipe 12. After the oxygen supply pipe is provided, it is convenient for clinical use, and oxygen can be inhaled after connecting to an oxygen source.
[0035] As Figure 5 shown, an exhaled gas collection pipe 23 is connected to the tail of the exhaled gas collection cavity 2, and a carbon dioxide monitoring interface 21 is provided at the tail of the exhaled gas collection pipe 23; after the exhaled gas collection pipe 23 is provided at the tail of the exhaled gas collection cavity 2, it is convenient for clinical use, and monitoring can be carried out after connecting the carbon dioxide monitoring interface 21 provided at the tail of the exhaled gas collection pipe 23 to a monitor. It should be noted that the other end of the exhaled gas collection pipe 23 is open and needs to be adapted to the carbon dioxide monitoring interface 21 provided at the tail of the exhaled gas collection cavity 2, that is: the open end of the other end of the exhaled gas collection pipe 23 can be tightly sleeved outside the carbon dioxide monitoring interface 21 provided at the tail of the exhaled gas collection cavity 2, or hermetically inserted into the carbon dioxide monitoring interface 21 provided at the tail of the exhaled gas collection cavity 2.
[0036] Preferably, a matching detachable connection port is provided between the tail of the exhaled gas collection cavity 2 and the exhaled gas collection pipe 23. Using a detachable interface to connect the tail of the exhaled gas collection cavity 2 and the exhaled gas collection pipe 23 can reduce the use cost when the exhaled gas collection pipe 23 is repeatedly used in some hospitals. The detachable exhaled gas collection pipe 23 can be used for end-tidal carbon dioxide monitoring in other clinical scenarios during mechanical ventilation. Exhaled gas collection is to suck the exhaled gas out of the patient's airway using a negative pressure air pump, and the air flow direction is away from the patient, so there is no cross-infection.
[0037] As Figure 2 、 Figure 4 and Figure 6 shown, one catheter fixing groove 31 is provided along the long axis on the side of the operation port of the mouth bite body; on the other side corresponding to the catheter fixing groove 31 of the operation port, a catheter fixing ring 32 may be provided. When used in the TEE examination scenario, when the patient is in a state of general anesthesia and tracheal intubation, after the tracheal intubation is completed, the tracheal intubation is clamped into the catheter fixing groove 31 and then fixed with tape winding, which can achieve a stable fixing effect. In any scenario (after painless gastroscopy or TEE examination), when the patient breathes spontaneously under the action of anesthetic, if there is upper airway obstruction caused by posterior tongue drop, a tracheal catheter, nasopharyngeal airway or other support (better with a hollow effect) with a suitable depth (matched with the depth from the patient's teeth to the pharyngeal floor) can be inserted through the catheter fixing groove 31. Under the action of the support, a gas flow passage is formed between the patient's tongue body and the hard palate, so that the posterior tongue drop can be relieved, the upper airway obstruction can be relieved, and the patient's oxygen supply safety can be ensured.
[0038] As Figure 6As shown, the catheter fixing groove 31 or / and the catheter fixing ring 32 are in the same plane as the central axis of the operation opening, forming an angle of 5-20°. The catheter fixing groove 31 is used for fixing the tracheal intubation of TEE patients. During TEE examination of patients, the esophageal opening is located in the middle of the bottom of the patient's throat. In order to facilitate the insertion of TEE, the operation opening of the mouth bite body is located in the middle of the mouth bite body, while the catheter fixing groove 31 is arranged on the side of the operation opening. In order to reduce the distortion of the tracheal catheter and the compression of the head end of the tracheal catheter on the lateral vocal cords of the glottis, the catheter fixing groove 31 is in the same plane as the central axis of the operation opening, forming an angle of 5-20°, which is adapted to the anatomical structure of the patient's oral pharynx. Similarly, the catheter fixing ring 32 is used for fixing supports such as tracheal catheters or nasopharyngeal airways. This angle setting can keep the head end of the inserted support away from the lateral wall of the throat, reducing the nausea and vomiting reactions caused by the inserted object.
[0039] As Figures 1-2 and Figures 4-6 shown, the tail of the oxygen inhalation cavity 1 or / and the exhalation collection cavity 2 protrudes from the lip blocking surface of the mouth bite body to form an operation handle 4, and the height of the operation handle 4 is greater than 1.5 cm. The setting of the operation handle 4 provides a hand-held part when the product is inserted into the patient's oral cavity and when it is withdrawn after use, facilitating operation. A height of 1.5 cm can barely meet the use requirements of being clamped by the index finger and thumb.
[0040] As Figure 2 , Figure 4 and Figure 6 shown, the outer side surface of the operation handle 4 is adjacent to or parallel to the inner side surface of the catheter fixing groove 31 to form a side surface of a groove. When fixing the tracheal catheter during TEE examination, one side surface of the tracheal catheter closely adheres to the inner side surface of the catheter fixing groove 31. This design increases the contact area between the tracheal catheter and the outer side surface of the operation handle 4, making the fixation of the tracheal catheter more stable. At the same time, it is also convenient for the adhesive tape to be wound around the outer sides of the operation handle 4 and the tracheal catheter, thereby stably fixing the two.
[0041] Furthermore, without drawings, the mouth bite body is made of a flexible material, and a rigid support tube is arranged in the operation opening in a matching manner. When this structure is used, the patient's upper and lower teeth directly bite on the upper and lower side surfaces of the mouth bite body. The flexible mouth bite body can increase the comfort of the patient during use, but the flexible mouth bite body cannot ensure the use safety of the gastroscope and the head and cable of TEE in the operation opening. In order to prevent the patient from biting the gastroscope and the TEE probe, a rigid support tube is arranged in the operation opening in a matching manner. Under the support of the rigid support tube, even if the patient bites, the gastroscope and the TEE probe cannot be damaged.
[0042] The above embodiments are only illustrative of the principles and effects of this patent application and are not intended to limit this patent application. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of this patent application. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed in this patent application should still be covered by the claims of this patent application.
Claims
1. The multi-functional mouthpiece includes a mouthpiece body, and an operation opening is arranged along the long axis of the mouthpiece body. It is characterized in that: On the side of the operation opening of the mouth bite body, an oxygen inhalation cavity (1) and / or an exhalation collection cavity (2) are / is provided through the long axis. A carbon dioxide monitoring interface (21) is provided at the tail of the exhalation collection cavity (2).
2. The multi-functional bite according to claim 1, characterized in that: The oxygen outlet (11) at the head end of the oxygen inhalation cavity (1) is arranged behind the exhalation sampling port (22) at the head end of the exhalation collection cavity (2).
3. The multi-functional mouth bite according to claim 2, wherein: The distance between the oxygen outlet (11) and the exhalation sampling port (22) is greater than 3 cm.
4. The multi-functional mouth bite according to claim 1, wherein: The oxygen inhalation cavity (1) is connected to an oxygen supply pipe (12), and an oxygen supply interface (13) is provided at the tail of the oxygen supply pipe (12).
5. The multi-functional bite according to claim 1, wherein: The exhalation collection cavity (2) is connected to an exhalation collection pipe (23) at the tail, and a carbon dioxide monitoring interface (21) is provided at the tail of the exhalation collection pipe (23); a matching detachable connection port is provided between the tail of the exhalation collection cavity (2) and the exhalation collection pipe (23).
6. The multi-functional mouth bite according to claim 1, characterized in that: On the side of the operation opening of the mouth bite body, a catheter fixing groove (31) is provided along the long axis; on the other side of the operation opening corresponding to the catheter fixing groove (31), a catheter fixing ring (32) is provided or not.
7. The multi-functional bite according to claim 6, characterized in that: The catheter fixing groove (31) and / or the catheter fixing ring (32) are / is in the same plane as the central axis of the operation opening, forming an angle of 5-20°.
8. The multifunctional mouth bite according to claim 1, wherein: The tail of the oxygen inhalation cavity (1) and / or the exhalation collection cavity (2) protrudes from the lip blocking surface of the mouth bite body to form an operation handle (4), and the height of the operation handle (4) is greater than 1.5 cm.
9. The multifunctional bite according to claim 8, characterized in that: The outer side surface of the operation handle (4) is adjacent to or parallel to the inner side surface of the catheter fixing groove (31) to form a groove side surface.
10. The multi-functional mouth bite according to claim 1, characterized in that: The mouth bite body is made of a flexible material, and a rigid support pipe is provided in the operation opening in a matching manner.