Visual laryngeal mask
By integrating the visual cavity and camera in the laryngeal mask, and using bent channels and fixing devices, real-time observation and fixation of the laryngeal mask insertion situation is solved, and the problem of inaccurate position and risk of reflux and aspiration caused by blind insertion of the existing laryngeal mask is improved, and the safety and accuracy of use are improved.
Patent Information
- Application Number
- CN202421666474.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-07-15
AI Technical Summary
The existing laryngeal mask can easily lead to inaccurate position during blind insertion, which increases the risk of patients, especially in elderly patients. The changes in oral structure and muscle relaxation make the insertion more difficult, and there is a risk of reflux and aspiration.
A visual laryngeal mask is designed. By setting a visual cavity and camera in the laryngeal mask, using bent channels and camera fixing devices, the visual range and position of the camera are controlled, so as to realize real-time observation and fixing of the laryngeal mask insertion and usage status.
Through visualization function, the error in the laryngeal mask is reduced, the risk of reflux and aspiration is reduced, the safety and accuracy of the laryngeal mask are improved, and the patient is safer during general anesthesia.
Smart Images
Figure CN223009588U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, in particular to a visible laryngeal mask. Background Art
[0002] A laryngeal mask is a commonly used tool for establishing a short-term artificial airway during general anesthesia surgery in modern clinics. By inserting the laryngeal mask into the pharynx and inflating it, a sealing ring is formed around the larynx to seal the laryngeal orifice, thereby establishing an artificial airway, retaining the patient's spontaneous breathing, and belonging to a ventilation tool between endotracheal intubation and a face mask. Its operation is simple, the success rate of use is high, the ventilation effect is good, the damage to the patient is small, and the postoperative complications are few. Currently, it has become one of the widely used tools in clinics.
[0003] The laryngeal mask belongs to a medical consumable product for respiratory anesthesia and can be used in various general anesthesia surgeries. The laryngeal mask belongs to a supraglottic ventilation device, which is basically consistent with the laryngeal anatomical structure. It is mainly used to open the larynx and seal the pharynx with a mask bag. During the process of spontaneous, assisted, or controlled ventilation, it provides a gas passage for the patient. During the use process, it needs to be inserted into the pharynx, and the mask bag is inflated to seal the larynx and fix the position. The fixed position depends on the blind insertion by the operator, which may cause damage to the patient's epiglottis, larynx, etc. Especially for elderly patients, there are changes in the oral structure (edentulous or toothless), muscle relaxation and atrophy, resulting in greater difficulty in inserting the laryngeal mask. After insertion, the position is inaccurate, resulting in air leakage, large ventilation resistance, and easy displacement during the operation. In addition, the secretion situation in the mask bag cannot be known, and there is a risk of regurgitation and aspiration. Therefore, aiming at the above defects, during the insertion process, visualization is an effective way to avoid incorrect insertion positions, can realize the implementation of observing the position, ensure the accurate position of the laryngeal mask; can observe the secretion situation in the mask bag in real time, and reduce the risk of regurgitation and aspiration. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a visible laryngeal mask, solve the practical application of the visualization function in the laryngeal mask, realize the effective control of the visible range of the camera, reduce the risks during the blind insertion and use of the laryngeal mask, and enable the laryngeal mask to be used with confidence for a long time and more safely.
[0005] To solve the above problems, this solution controls the position of the camera head end by controlling the angle and / or length of the patient end of the visible cavity, thereby controlling the visible range of the camera; the position of the camera can be fixed by a camera fixing device, so as to observe the insertion situation and use status of the laryngeal mask in real time.
[0006] The utility model provides a visible laryngeal mask, which comprises a main tube, an inflation balloon, a camera and a camera fixing device. A visible cavity for the camera to pass through is arranged in the main tube. A transparent lens is arranged at the opening of the visible cavity at the patient end. The lens is completely transparent and does not affect the effect of the camera. A direction control structure is arranged in the visible cavity. The direction control structure comprises a bent channel arranged at the patient end of the visible cavity. The bent channel is used for accommodating the head end of the camera, and the direction of the head end of the camera is controlled through the bent channel. After the position and posture of the camera are adjusted, the camera is completely fixed by the camera fixing device.
[0007] In this solution, it also includes but is not limited to structures such as a machine end interface, a ventilation tube, a ventilation joint installed at the operating end of the ventilation tube, a drainage cavity, an inflation tube, and a one-way valve connected to the inflation tube. On the premise of ensuring the basic functions of the original laryngeal mask, the angle and the kinking position of the visible cavity at the patient end are controlled in the laryngeal mask, so that the camera can be better fixed in the visible cavity, ensuring that the camera does not move, and a camera fixing device is added on the basis of the visible cavity to fix the camera. After the camera reaches the expected position through the visible channel, the position of the laryngeal mask is observed through the visible window. After slowly rotating the camera to view the target position, the machine end of the camera is fixed by the camera fixing device to fix the direction and position of the camera. When the camera finds an abnormal situation at the visible window, it can be processed in time.
[0008] According to an embodiment of the utility model, the camera fixing device comprises a position fixing component and an angle fixing component, which are respectively used for fixing the position and the angle of the camera.
[0009] According to an embodiment of the utility model, the position fixing component is a tensioning component, and the tensioning component realizes the fixing effect on the camera by pressing the camera against the main tube.
[0010] It should be noted that the camera fixing device is not limited to being installed on the camera. It can be set separately or on the main tube.
[0011] According to an embodiment of the utility model, the tensioning component comprises a moving ring and a pressing ring installed on the camera. The moving ring can move into the visible cavity and is in interference fit with the visible cavity. The pressing ring is used to apply pressure to the moving ring to make the moving ring tightly hold the camera.
[0012] According to an embodiment of the utility model, a deformation notch is arranged on the moving ring, which is convenient for the moving ring to deform after the pressing ring is sleeved on the moving ring.
[0013] According to an embodiment of the utility model, the angle fixing component comprises a fixing block and a clamping groove. The fixing block is connected to the moving ring, and the clamping groove is used for accommodating the fixing block to realize the fixing of the angle of the moving ring.
[0014] The card slot is generally provided on the catheter.
[0015] According to an embodiment of the present invention, an anti-loss mechanism is provided on the camera for preventing the loss of the camera fixing device. The anti-loss mechanism includes a fixing ring provided on the camera.
[0016] According to an embodiment of the present invention, the anti-loss mechanism further includes a connecting line. The connecting line connects the fixing ring and the moving ring. The pressing ring is located between the fixing ring and the moving ring. The connecting line is used to limit the moving distance of the moving ring on the camera.
[0017] The diameter of the fixing ring should be greater than the diameters of the inner holes of the pressing ring and the moving ring to prevent the pressing ring and the moving ring from slipping out and being lost from the operating end of the camera. The anti-loss mechanism further includes a connecting line. The connecting line connects the fixing ring and the moving ring. The pressing ring is located between the fixing ring and the moving ring. The connecting line is used to limit the moving distance of the moving ring on the camera to prevent the pressing ring and the moving ring from moving too far towards the head end of the camera on the camera, which is convenient for operation.
[0018] According to an embodiment of the present invention, 90° < the angle of the bending channel < 180°. Preferably, the angle of the bending channel is in the range of 120 - 150°.
[0019] According to an embodiment of the present invention, the projected length of the bending channel ≤ 10 mm.
[0020] The beneficial effects of the present invention are as follows: By setting the angle and length of the patient end of the visible cavity, a bending channel capable of controlling the direction of the head end of the camera is formed. This can effectively control the direction of the head end of the camera and also play an important role in fixing the direction of the lens end of the camera. It reduces the influence of other factors on the fixed camera. The camera can be fully fixed through the camera fixing device. Thus, under the joint cooperation of the camera fixing device and the bending channel of the visible cavity, the direction and position of the camera are effectively fixed, reducing other external interferences during the general anesthesia process of the patient, enabling the display connected to the camera to display the expected physiological position in real time, allowing medical staff to timely understand the insertion of the laryngeal mask and whether there is air leakage, regurgitation and aspiration after insertion, and timely adjust the laryngeal mask according to the observed situation, reducing the impact of the laryngeal mask on the patient. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The present invention will be further described below in conjunction with the drawings and embodiments.
[0022] Figure 1 It is a schematic diagram of the overall structure of the visible laryngeal mask;
[0023] Figure 2 It is a schematic diagram of the side sectional structure of the visible laryngeal mask;
[0024] Figure 3Schematic structural diagram of the camera fixing device;
[0025] Figure 4 Schematic structural diagram when the camera fixing device is fixed;
[0026] Figure 5 is Figure 4 Enlarged schematic diagram of the position of the camera fixing device in Detailed implementation manners
[0027] The following description is only used to disclose the present utility model so that those skilled in the art can implement the present utility model. The embodiments described below are only examples, and those skilled in the art can think of other obvious deformations. The basic principles defined in the following description can be applied to other implementation schemes, deformation schemes, improvement schemes, equivalent schemes, and other schemes that do not deviate from the spirit and scope of the present utility model.
[0028]
Embodiment 1
[0029] A visual laryngeal mask, as Figure 1 , includes a main tube 2, an inflation balloon 3, a camera 12 and a camera fixing device 13. Specifically, it further includes a machine end interface 1 connected to the main tube 2. A visual cavity 4 for the camera 12 to pass through is provided in the main tube 2. In this embodiment, the ventilation tube 5 can also extend through the visual cavity 4. An air vent joint 6 is installed at the operating end of the ventilation tube 5. A drainage cavity 7, an inflation tube 8, and a one-way valve 9 connected to the inflation tube 8 are also provided in the main tube 2. The air vent joint 6 and the one-way valve 9 are connected to an external syringe or other devices, and the machine end interface 1 is connected to a ventilator or an anesthesia machine. An air injection hole 11 is provided on the inflation balloon 3. This part of the structure is similar to the existing laryngeal mask structure and can be adaptively changed according to the usage scenario.
[0030] In this solution, the convenient adjustment of the camera 12 and the effect of fixing the visualization direction are mainly achieved by the head end direction control structure of the camera 12 and the camera fixing device 13. As Figure 2 , the visual cavity 4 extends to the position of the inflation balloon 3, and a transparent lens 10 is provided at the opening at the patient end. A bending channel is provided at the patient end position of the visual cavity 4. The bending channel is used to accommodate the head end of the camera 12, and the head end direction of the camera 12 is controlled through the bending channel. After the position and posture of the camera 12 are adjusted, the camera 12 is fixed by the camera fixing device 13.
[0031] Specifically, the camera 12 and the visual cavity 4 cooperate with each other. The camera 12 is an external component. During the use of the imaging function, the camera 12 is passed through the visual cavity 4 to reach the position of the lens 10. The lens 10 is completely transparent and does not affect the effect of the camera 12. At the same time, the tail end of the camera is externally connected to the screen end, and the real-time physiological condition is observed by adjusting the direction of the camera 12.
[0032] The bending channel can be formed by adjusting the shape of the visual cavity 4 or by adding a structure in the visual cavity 4. In this embodiment, the air vent pipe 5 and the visual cavity 4 change along with the change of the main pipe 2. The visual cavity 4 is bent on one side close to the lens 10, and this bend forms an angle with the lens 10. This angle plays an important role in fixing the head end of the camera 12. For example Figure 2 , 90° < φ1 < 180°. When the angle φ1 is between 120° and 150°, a better effect is achieved, and it is necessary to control the bending length D1 of the camera along the patient end within 10 mm. Under the control of this angle and size, the length of the camera along the axial direction of the lens during use is controlled within 20 mm. This can effectively control the direction of the head end of the camera and also plays an important role in fixing the direction of the lens end of the camera, reducing the influence of other factors on the fixed camera.
[0033] The camera fixing device 13 is used to finally fix the position and direction of the camera so that it does not move at all. Specifically, the camera fixing device 13 includes a position fixing component and an angle fixing component, which are respectively used to fix the position and angle of the camera 12.
[0034] In this embodiment, a tensioning component is used to fix the position of the camera 12. The tensioning component uses the extrusion of the camera 12 and the main pipe 2 to achieve the fixing effect of the camera 12. The tensioning component can be set separately or can be set on the camera 12 or the main pipe 2. When fixing is required, the tensioning component is installed between the camera 12 and the main pipe 2, and the fixing is achieved by using the extrusion force.
[0035] In this solution, an embodiment of the tensioning component is provided. For example Figure 3 , the tensioning component includes a movable moving ring 13-2 and a pressing ring 13-3 sleeved on the camera 12. The moving ring 13-2 can move into the visual cavity 4 and is in interference fit with the visual cavity 4. The pressing ring 13-3 is sleeved on the moving ring to apply pressure to the moving ring 13-2 to make the moving ring 13-2 hold the camera 12 tightly. Further, deformation notches are provided on the moving ring 13-2 to facilitate the deformation of the moving ring after the pressing ring 13-3 is sleeved on the moving ring 13-2.
[0036] For example Figure 3, the angle fixing component includes a fixing block 13-1 and a card slot 1-1. The fixing block 13-1 is connected to the moving ring 13-2, and the card slot 1-1 is used to accommodate the fixing block 13-1 to fix the angle of the moving ring 13-2.
[0037] During use, after confirming the direction and position of the camera, insert the protrusion of the fixing block 13-1 into the card slot 1-1. After insertion, move the pressing ring 13-3 along the direction of the camera towards the moving ring 13-2 and press it tightly. At this time, the moving ring 13-2 and the pressing ring 13-3 firmly wrap the camera inside and cooperate with the fixing block 13-1 and the card slot 1-1 to completely fix the position of the camera.
[0038] It should be noted that the angle fixing component is not limited to the method in this solution, as long as it can control the camera from rotating after being fixed.
[0039] Optionally, an anti-loss mechanism is provided on the camera 12 to prevent the loss of the camera fixing device 13. The anti-loss mechanism includes a fixing ring 13-4 provided on the camera. The diameter of the fixing ring 13-4 should be greater than the diameters of the inner holes of the pressing ring 13-3 and the moving ring 13-2 to prevent the pressing ring 13-3 and the moving ring 13-2 from slipping out and being lost from the operating end of the camera 12. The anti-loss mechanism also includes a connecting line 13-5. The connecting line 13-5 connects the fixing ring 13-4 and the moving ring 13-2. The pressing ring 13-3 is located between the fixing ring 13-4 and the moving ring 13-2. The connecting line 13-5 is used to limit the moving distance of the moving ring 13-2 on the camera 12 to prevent the pressing ring 13-3 and the moving ring 13-2 from moving too far towards the head end of the camera 12 on the camera 12 for easy operation. The connecting line 13-5 can be connected to the moving ring 13-2 or the fixing block 13-1.
[0040] This camera fixing device is used in combination with the design of the visual cavity lens end to effectively fix the direction and position of the camera, reduce other external interferences during general anesthesia of the patient, and enable the display connected to the camera to display the expected physiological position in real time.
[0041] Those skilled in the art should understand that the above description and the embodiments of the present invention shown in the drawings are only examples and do not limit the present invention. The object of the present invention has been completely and effectively achieved. The function and structural principle of the present invention have been shown and described in the embodiments. Without departing from the said principle, the embodiments of the present invention can have any deformation and modification.
Claims
1. A visual laryngeal mask, characterized in that: The invention comprises a main tube (2), a mask bag (3), a camera (12) and a camera fixing device (13); the main tube (2) is provided with a visual cavity (4) for the camera (12) to pass through; the visual cavity (4) is provided with a direction control structure; the direction control structure comprises a bending channel provided at the patient end of the visual cavity (4); the bending channel is used to accommodate the head end of the camera (12); the direction of the head end of the camera (12) is controlled through the bending channel; and the camera (12) is fixed through the camera fixing device (13) after the position and posture of the camera (12) are adjusted.
2. The visual laryngeal mask according to claim 1, characterized in that: The camera fixing device (13) comprises a position fixing component and an angle fixing component, which are respectively used to fix the position and angle of the camera (12).
3. The visual laryngeal mask according to claim 2, characterized in that: The position fixing component comprises a tensioning component, and the tensioning component achieves a fixing effect on the camera (12) by squeezing the camera (12) and the main pipe (2).
4. The visual laryngeal mask according to claim 3, characterized in that: The tensioning assembly comprises a moving ring (13-2) and a pressure ring (13-3) mounted on the camera (12); the moving ring (13-2) can be moved into the visual cavity (4) and is interference-fitted with the visual cavity (4); and the pressure ring (13-3) is used to apply pressure to the moving ring (13-2) so that the moving ring (13-2) holds the camera (12) tightly.
5. The visual laryngeal mask according to claim 4, characterized in that: The transfer ring (13-2) is provided with a deformation notch to facilitate deformation of the transfer ring after the pressure ring (13-3) is sleeved on the transfer ring (13-2).
6. The visual laryngeal mask according to claim 5, characterized in that: The angle fixing assembly comprises a fixing block (13-1) and a clamping slot (1-1); the fixing block (13-1) is connected to the moving ring (13-2); the clamping slot (1-1) is used to accommodate the fixing block (13-1) to fix the angle of the moving ring (13-2).
7. The visual laryngeal mask according to any one of claims 4 to 6, characterized in that: The camera (12) is provided with an anti-loss mechanism for preventing the camera fixing device (13) from being lost, and the anti-loss mechanism comprises a fixing ring (13-4) provided on the camera.
8. The visual laryngeal mask according to claim 7, characterized in that: The anti-lost mechanism also includes a connecting line (13-5), the connecting line (13-5) connecting the fixed ring (13-4) and the moving ring (13-2), the pressing ring (13-3) being located between the fixed ring (13-4) and the moving ring (13-2), and the connecting line (13-5) being used to limit the moving distance of the moving ring (13-2) on the camera (12).
9. The visual laryngeal mask according to any one of claims 1 to 6, characterized in that: 90°<the angle of the bending channel<180°.
10. The visual laryngeal mask according to claim 9, characterized in that: The projected length of the bending channel is ≤10 mm.