Visual laryngeal mask with instrument channel
By designing a fourth chamber with a guide tube on the visual laryngeal mask, medical staff can clean up the patient's throat secretions without opening the laryngeal mask to the ventilator and provide surgical access in an emergency. The problems of improper laryngeal mask insertion and difficulty in cleaning secretions have improved the safety and efficiency of the surgical process.
Patent Information
- Application Number
- CN202411631978.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2025-01-14
AI Technical Summary
During general anesthesia surgery, when the laryngeal mask is improperly placed or the patient has too much secretion, the existing technology needs to disconnect the laryngeal mask from the ventilator, which increases the difficulty of work for medical staff and may lead to problems such as hypoxia in patients. Lack of treatment access in emergencies.
A visual laryngeal mask with instrument channel is designed, and a sealing bag and a camera are provided on the ventilator, including the first, second, third and fourth chamber channels, in which a guide tube is fixedly connected in the fourth chamber channel, allowing medical care. When the personnel are constantly opening the throat mask and connecting the ventilator, they directly clean the secretions in the throat through the guide tube and provide emergency surgical instrument channels.
It reduces the difficulty of work for medical staff, improves the success rate of laryngeal mask insertion and the monitoring efficiency of surgical procedures, provides treatment channels in emergencies, and reduces the risk of patients.
Smart Images
Figure CN119303198A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the field of medical instruments, and in particular relates to a visual laryngeal mask with an instrument channel. Background Art
[0002] During general anesthesia surgery, doctors will use laryngeal masks to establish artificial ventilation tubes for patients. Due to various reasons, the laryngeal masks may be improperly inserted, offset, shifted, and other abnormalities during use. Most of the laryngeal masks on the market now still use ordinary laryngeal masks. When an abnormality occurs, it is necessary to use an endoscope to check the cause of the abnormality before the doctor can deal with it. However, these processes are complicated, time-consuming and expensive. The visual laryngeal mask is an ordinary laryngeal mask with a camera added to it, so that the laryngeal mask insertion process, the surgical process and the replacement process of the endotracheal tube after the operation can be observed and monitored in real time, thereby reducing the time of laryngeal mask insertion and improving the success rate of laryngeal mask insertion, monitoring various abnormalities of the artificial airway during surgery, and reducing the time and cost of processing.
[0003] When excessive secretions are observed in the patient, the laryngeal mask and the ventilator must be disconnected first, and then the patient's secretions must be sucked out through the ventilation channel. This increases the difficulty of the medical staff's work and may also cause injuries to the patient due to lack of oxygen. If an emergency occurs with the patient during surgery, there is no treatment channel to remove the instrument.
[0004] The visual laryngeal mask with an instrument channel provided in the present invention can enable medical personnel to solve the problem of treating patients without disconnecting from a ventilator.
[0005] Based on this, the utility model designs a visual laryngeal mask with an instrument channel to solve the above problems. Utility Model Content
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a visual laryngeal mask with an instrument channel, comprising a ventilation tube, a sealing bag arranged on the ventilation tube, and a camera arranged on the ventilation tube, the sealing bag is arranged at the tail end of the ventilation tube, the ventilation tube is provided with a first cavity, a second cavity, a third cavity, and a fourth cavity, the first cavity is connected to a ventilator, the fourth cavity is not connected to the first cavity, a guide tube is fixedly connected to the fourth cavity, the front one-fifth of the guide tube is located in the fourth cavity, and the surgical instrument enters the fourth cavity through the guide tube.
[0007] By adopting the above technical solution, when the patient has excessive secretions, the medical staff can directly insert the surgical instrument into the guide tube and enter the throat through the fourth cavity without disconnecting the laryngeal mask and the ventilator. The secretions in the throat can be directly attracted, which is convenient for the medical staff to operate and reduces the difficulty of their work.
[0008] Preferably, an embedding cavity is provided on the side wall of the ventilation tube, the embedding cavity is communicated with the fourth cavity, and the middle part of the guide tube is embedded in the embedding cavity.
[0009] By adopting the above technical solution, the guide tube is embedded in the embedding, which can reduce the movement of the guide tube. When the ventilation tube is inserted into the throat, the movement of the guide tube is reduced, thereby improving the comfort of the patient.
[0010] Preferably, two angles are designed from the proximal entrance to the distal exit of the fourth cavity. The first angle is 25 to 35 mm away from the exit, and is 28 to 35° upward with respect to the axis of the channel. The second angle is 8 to 15° between the exit of the channel and the horizontal direction of the axis of the first cavity.
[0011] By adopting the above technical solution, it is convenient for the medical device to come out of the guide tube and the fourth cavity, and the difficulty of inserting the medical device is reduced.
[0012] Preferably, the end of the guide tube away from the fourth cavity is connected to a sealing joint, and the sealing joint is composed of a sealing cover, a sealing ring and a base. The base is fixedly connected to the guide tube, and the sealing ring is fixedly arranged on the sealing cover. The sealing ring is a soft rubber ring. The sealing cover is provided with a yield opening, and the base is provided with a through hole communicating with the guide tube. The sealing cover is threadedly connected to the base, and the surgical instrument is inserted in the sealing ring.
[0013] By adopting the above technical solution, when the medical device is inserted into the guide tube, the sealing ring presses against the side wall of the medical device. As the device continues to enter, the sealing ring contacts the wire of the medical device, thereby greatly reducing the external impurities that enter the throat through the fourth cavity.
[0014] Preferably, a dustproof sheet is fixedly provided in the sealing ring, the dustproof sheet is made of the same material as the sealing ring, two dustproof sheets are provided, the two dustproof sheets are staggered and in contact with each other, and at the same time, the two dustproof sheets cover the inner ring opening of the sealing ring.
[0015] By adopting the above technical solution, when the medical device has not entered the guide tube, the two dustproof sheets are directly pressed against each other, and at the same time, the two dustproof sheets cover the inner ring opening of the sealing ring, thereby preventing impurities from entering through the fourth cavity when the fourth cavity is not in use.
[0016] Preferably, a clearance groove is provided on the sealing capsule, and the camera is located in the clearance groove.
[0017] By adopting the above technical solution, when the sealing bag contacts the throat, the camera is located in the clearance groove, thereby reducing the contact between the camera and the secretions in the throat.
[0018] Preferably, the field of view angle of the camera is between 45° and 85°.
[0019] By adopting the above technical solution, the field of view is set to 45-85 degrees, which can more comprehensively observe the throat condition.
[0020] Preferably, the fixing position of the camera is parallel to the axis of the first cavity and is 7 to 10 mm away from the axis. After being fixed, the camera forms an angle of 15 to 28 degrees with the center line of the distal end surface of the sealing capsule.
[0021] By adopting the above technical solution, the camera can observe the throat more comprehensively.
[0022] Preferably, the second cavity is close to the first cavity and is not communicated with the first cavity. After being inserted into the human body, the second cavity is communicated with the human digestive tract.
[0023] By adopting the above technical solution, the second cavity is communicated with the human digestive tract to reduce the pressure of the digestive tract and a gastric tube can be inserted through the cavity to attract refluxed matter.
[0024] In summary, the present application has the following beneficial technical effects: when the patient has excessive secretions, the medical staff can directly insert the surgical instrument into the guide tube and enter the throat through the fourth cavity without disconnecting the laryngeal mask and the ventilator. The secretions in the throat can be directly attracted, which is convenient for the medical staff to operate and reduces the difficulty of the medical staff's work. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0026] Figure 1 Schematic diagram of the overall structure of the ventilation pipe in this embodiment;
[0027] Figure 2 Schematic diagram of the position structure of the fourth cavity in this embodiment;
[0028] Figure 3 This is a schematic diagram of the structure of the sealing capsule in this embodiment;
[0029] Figure 4 is a schematic diagram of angle a in this embodiment;
[0030] Figure 5 Schematic diagram of angle b in this embodiment;
[0031] Figure 6Schematic diagram of the structure of the sealing cover in this embodiment;
[0032] Figure 7 Schematic diagram of the structure of the dustproof plate in this embodiment;
[0033] Figure 8 is a schematic diagram of angle e in this embodiment;
[0034] Fig. 9 Schematic diagram of angle d in this embodiment.
[0035] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0036] 1. Ventilation tube; 2. Sealing bag; 3. Camera; 4. Make way groove; 5. First cavity; 6. Second cavity; 7. Third cavity; 8. Fourth cavity; 9. Connector; 10. Signal line; 11. Guide tube; 12. Embedded cavity; 13. Sealing cover; 14. Sealing ring; 15. Base; 16. Make way port; 17. Dustproof sheet. DETAILED DESCRIPTION
[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0038] The following is combined with Figure 1-9 This application is described in further detail.
[0039] Reference Figure 1-Figure 5 A visual laryngeal mask with an instrument channel comprises a ventilating tube 1, a sealing bag 2 arranged on the ventilating tube 1, and a camera 3 arranged on the ventilating tube 1. The sealing bag 2 is arranged at the tail end of the ventilating tube 1, and a clearance groove 4 is opened on the sealing bag 2. The camera 3 is located in the clearance groove 4; the sealing bag 2 is made of a thermoplastic polymer material with a hardness of 0 to 10A. The structure of the sealing bag 2 is similar to that of the upper larynx of the human body. After being inserted into the human body, the sealing of the upper larynx is achieved through the similarity of the shape and structure with the upper larynx and the squeezing force of the throat;
[0040] Reference Figure 1-Figure 5The ventilation tube 1 is provided with a first cavity 5, a second cavity 6, a third cavity 7, and a fourth cavity 8. The first cavity 5 is located in the middle of the ventilation tube 1 and has the largest size. A connector 9 connected to the ventilator is fixedly provided on the first cavity 5. After the connector 9 is connected to the ventilator, the gas given to the patient by the ventilator enters the patient's airway through the first cavity 5; the second cavity 6 is close to the first cavity 5, but is not connected to the first cavity 5. The size is second. After being inserted into the human body, the second cavity 6 is connected to the human digestive tract, and is used to reduce the pressure of the digestive tract. At the same time, a gastric tube can be inserted through this cavity to attract refluxed materials;
[0041] Reference Figure 1-Figure 5 The third cavity 7 is close to the first cavity 5 and is not connected to the first cavity 5. The outlet of the third cavity 7 is at the top of the outlet of the first cavity 5 and is connected to the give way groove 4 of the sealing capsule 2. The signal line 10 of the camera 3 is located in the third cavity 7 to guide the signal line 10; the fourth cavity 8 is not connected to the first cavity 5. A guide tube 11 is fixedly connected to the fourth cavity 8. The front one-fifth of the guide tube 11 is located in the fourth cavity 8. An embedding cavity 12 is provided on the side wall of the ventilation tube 1. The embedding cavity 12 is connected to the fourth cavity 8. The middle part of the guide tube 11 is embedded in the embedding cavity 12. The guide tube 11 is embedded in the embedding cavity, which can reduce the movement of the guide tube 11. When the ventilation tube 1 is inserted into the head, the movement of the guide tube 11 is reduced, and the comfort of the patient is improved. This cavity is used to pass medical devices or surgical instruments;
[0042] Reference Figure 1-Figure 5 In order to ensure that the matching medical device enters from the guide tube 11, and can smoothly reach the upper larynx and pass through the glottis into the respiratory tract under the guidance of the distal outlet of the fourth channel without its own turning function, two angles are designed from the proximal entrance to the distal outlet of the fourth cavity 8. The first angle is 25 to 35 mm away from the outlet, and the direction is upward at an angle of 28 to 35° with the axis of the channel, which is represented by angle e here. The second angle is that the channel outlet is at an angle of 8 to 15° horizontally with the axis of the first cavity 5, which is represented by angle d here. Setting these two angles facilitates the medical device to come out of the guide tube 11 and the fourth cavity 8, reducing the difficulty of inserting the medical device;
[0043] Reference Figure 1-Figure 5 When there is too much throat secretion and it needs to be cleaned, medical personnel can directly insert the instrument from the guide tube 11 into the fourth cavity 8 and then into the throat of the human body without disconnecting the ventilator to attract the throat secretion, thereby solving the treatment problem for the patient and reducing the difficulty of the work of medical personnel.
[0044] Reference Figure 1-Figure 5The fourth cavity 8 is also a surgical instrument channel, which provides a surgical instrument channel for intraoperative surgery or intraoperative emergency. The size range of this channel is 2.0 to 4.0 mm, which is sufficient to pass all instruments under a bronchoscope, for example. In an emergency, it ensures connection with the ventilator while providing a channel for rescue.
[0045] Reference Figure 1-Figure 5 The mirror surface of the camera 3 is 0.5 to 2 mm lower than the surface of the sealing bag 2. During the insertion and use of the laryngeal mask, secretions will continue to be produced in the patient's mouth, esophagus or airway. The camera 3 is located in the clearance groove 4 and is lower than the sealing bag 2, which reduces the contact of the camera 3 with these secretions, thereby reducing the impact on the observation effect of the camera 3;
[0046] Reference Figure 1-Figure 9 The camera 3 is equipped with multiple LED lights for lighting, and the illumination of the lights can be adjusted through an external host. When the visual laryngeal mask is placed in the human body, in order to ensure the best observation field of view of the camera 3, the field of view angle of the camera 3 is between 45 and 85°, which is represented by angle a here. Within this field of view angle range, the interior of the entire sealing capsule 2 in the throat sealing part can be observed; at the same time, the fixed position of the camera 3 is parallel to the axial core line of the first cavity 5, and is 7 to 10 mm away from the axial core line. After being fixed, the camera 3 forms an angle of 15 to 28° with the center line of the distal end surface of the sealing capsule 2, which is represented by angle b here. The fixation of the camera 3 can provide the best observation field of view for medical staff when the above two conditions are met, that is, the entire complete glottis can be seen in the field of view of the camera 3.
[0047] Reference Figure 1-Figure 9 , one end of the guide tube 11 away from the fourth cavity 8 is connected with a sealing joint 9, and the sealing joint 9 is composed of a sealing cover 13, a sealing ring 14 and a base 15. The base 15 is fixedly connected to the guide tube 11, and the sealing ring 14 is fixedly arranged on the sealing cover 13. A clearance port 16 is provided on the sealing cover 13, and a through hole communicating with the guide tube 11 is provided on the base 15. The sealing cover 13 is threadedly connected to the base 15; the sealing ring 14 is a soft rubber ring, and a dustproof sheet 17 is fixedly arranged in the sealing ring 14. The dustproof sheet 17 is made of the same material as the sealing ring 14 and is also made of soft rubber. The thickness of the dustproof sheet 17 is relatively thin, and a splitting crack is provided on the dustproof sheet 17 to divide the dustproof sheet 17 into two small sheets. Two dustproof sheets 17 are provided, and the two dustproof sheets 17 are staggered and contacted with each other, and at the same time, the two dustproof sheets 17 cover the inner ring opening of the sealing ring 14;
[0048] Reference Figure 1-Figure 9When the fourth cavity 8 is not in use, the two dust-proof sheets 17 contact each other to close the opening of the sealing ring 14, thereby preventing foreign matter from entering the fourth cavity 8; when in use, the sealing ring 14 and the sealing cover 13 are first disinfected and cleaned, and then the instrument is inserted into the clearance opening 16, and one end of the instrument is in contact with the dust-proof sheet 17. As the instrument is continuously inserted, the dust-proof sheet 17 and the sealing ring 14 are stretched apart. Before the operation of the instrument is completed, the sealing ring 14 is always in contact with the instrument part, thereby always sealing the clearance opening 16 to prevent foreign matter from entering the human body through the guide tube 11.
[0049] The implementation principle of this embodiment is: when there is excessive throat secretion and it needs to be cleaned, the medical staff can directly insert the instrument from the guide tube 11 into the fourth cavity 8 and then into the human throat without disconnecting the ventilator to attract the throat secretion. At the same time, the camera 3 provides a clear field of view for the medical staff, which is convenient for the medical staff to operate clearly, realize the treatment of the patient, and reduce the difficulty of the work of the medical staff.
[0050] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0051] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.
[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A visual laryngeal mask with an instrument channel, characterized in that: The invention comprises a ventilation tube (1), a sealing bag (2) arranged on the ventilation tube (1), and a camera (3) arranged on the ventilation tube (1); the sealing bag (2) is arranged at the rear end of the ventilation tube (1); the ventilation tube (1) is provided with a first cavity (5), a second cavity (6), a third cavity (7), and a fourth cavity (8); the first cavity (5) is connected to a ventilator; the fourth cavity (8) is not connected to the first cavity (5); a guide tube (11) is fixedly connected to the fourth cavity (8); the front one-fifth of the guide tube (11) is located in the fourth cavity (8); and the surgical instrument enters the fourth cavity (8) through the guide tube (11).
2. A visual laryngeal mask with an instrument channel according to claim 1, characterized in that: An embedding cavity (12) is provided on the side wall of the ventilation pipe (1), the embedding cavity (12) is communicated with the fourth cavity (8), and the middle part of the guide pipe (11) is embedded in the embedding cavity (12).
3. A visual laryngeal mask with an instrument channel according to claim 2, characterized in that: The fourth cavity (8) is designed with two angles from the proximal entrance to the distal exit. The first angle is 25 to 35 mm away from the exit, and is 28 to 35 degrees upward with respect to the axis of the cavity. The second angle is 8 to 15 degrees horizontally between the exit of the cavity and the axis of the first cavity (5).
4. A visual laryngeal mask with an instrument channel according to claim 1, characterized in that: The end of the guide tube (11) away from the fourth cavity (8) is connected to a sealing joint (9), and the sealing joint (9) is composed of a sealing cover (13), a sealing ring (14) and a base (15). The base (15) is fixedly connected to the guide tube (11), and the sealing ring (14) is fixedly arranged on the sealing cover (13). The sealing ring (14) is a soft rubber ring. The sealing cover (13) is provided with a clearance opening (16). The base (15) is provided with a through hole communicating with the guide tube (11). The sealing cover (13) is threadedly connected to the base (15), and the surgical instrument is inserted into the sealing ring (14).
5. A visual laryngeal mask with an instrument channel according to claim 4, characterized in that: A dustproof sheet (17) is fixedly arranged in the sealing ring (14). The dustproof sheet (17) is made of the same material as the sealing ring (14). Two dustproof sheets (17) are arranged. The two dustproof sheets (17) are staggered and in contact with each other, and at the same time, the two dustproof sheets (17) cover the inner ring opening of the sealing ring (14).
6. A visual laryngeal mask with an instrument channel according to claim 1, characterized in that: The sealing capsule (2) is provided with a clearance groove (4), and the camera (3) is located in the clearance groove (4).
7. A visual laryngeal mask with an instrument channel according to claim 6, characterized in that: The viewing angle of the camera (3) is between 45° and 85°.
8. A visual laryngeal mask with an instrument channel according to claim 7, characterized in that: The fixing position of the camera (3) is parallel to the axis of the first cavity (5) and is 7 to 10 mm away from the axis. After fixing, the camera (3) forms an angle of 15 to 28 degrees with the center line of the distal end surface of the sealing capsule (2).
9. A visual laryngeal mask with an instrument channel according to claim 1, characterized in that: The second cavity (6) is close to the first cavity (5) and is not in communication with the first cavity (5). After being placed in a human body, the second cavity (6) is in communication with the human digestive tract.