Disposable difficult glottis upper airway trachea cannula visual guide bougie
By designing a visual guide probe including a PVC hose and an aluminum inner core, the problems of insufficient length and poor visual field of tracheal intubation wire in the prior art are solved, and a higher intubation success rate and tracheal tube are achieved Reliability of cannula.
Patent Information
- Application Number
- CN202420824376.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-19
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-04-19
AI Technical Summary
In the existing difficult airway treatment technology, the length of the tracheal intubation guide wire is insufficient, the fiber support lens is too soft, the hard lens is too thick, the visual field is poor when encountering airway bleeding, the overall guide wire is soft, the soft and hard are not divided, and the sound spiral is There is a high failure rate for complex and difficult airway intubation such as inability to locate and tracheal fracture.
Provide a disposable, difficult supraglobe airway tracheal intubation visual guide probe, including a first PVC hose, a second PVC hose and an aluminum inner core, combining a camera and a lighting to realize visual function and enhance The hardness and flexibility of the guidewire ensure proper insertion and observation of the tracheal catheter.
By enhancing the hardness and flexibility of the guidewire, the risk of failure of tracheal catheter insertion is reduced, the success rate of first intubation of difficult airways is improved, the reliability of tracheal intubation is ensured, and the necessity of tracheal intubation is reduced.
Smart Images
Figure CN222445073U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, in particular to a disposable difficult supraglottic airway tracheal intubation visual guide bougie. Background Art
[0002] Difficult airway refers to a clinical condition that is expected and unexpected when anesthesiologists receive standardized training, including but not limited to difficult mask ventilation, difficult laryngoscopic exposure, difficult supraglottic airway, difficult intubation, difficult extubation, and difficult invasive airway.
[0003] At present, the main solution to solve difficult airway intubation is awake intubation, which means that the patient is intubated while awake and retains spontaneous breathing. The commonly used tools for awake intubation are video laryngoscopes, soft mirrors, various catheter cores, and bougies. Although the existing tools can effectively assist in awake intubation, there is a failure rate, especially the failure rate of first intubation is high. Studies by Brian E. Driver and others have shown that video laryngoscopes combined with catheter cores and bougies can significantly improve the first intubation success rate of patients with endotracheal intubation. However, the current catheter core and bougie auxiliary tools are made of a plastic polymer (low-density polyethylene), which is overall soft and has limitations in the application of difficult endotracheal intubation in certain anatomical and pathological abnormalities. The classic bougie is too flexible, and when the bougie is used as a guide, its approach angle usually causes the tip of the bougie to bend and enter the glottis. Because the tip of the endotracheal tube encounters resistance at the level of the postglottic joint and is folded into an angle, the subsequent placement of the endotracheal tube may be difficult, and the endotracheal tube needs to be rotated or twisted and the intubation force increased to enter the glottis opening (such as the attached Figure 6 The study also pointed out that ideally, the axis of the bougie should be parallel to the main axis of the trachea (see Figure 2A). Figure 6 (as shown in Figure B).
[0004] When it is necessary to intubate a patient under the guidance of a bougie, the bougie must be inserted into the patient's trachea first, and the tracheal tube is inserted from the distal end of the bougie and guided into the trachea. Existing bougies are soft and metal. Soft bougies are easy to bend at the patient's glottis. When using hard bougies, the tracheal tube cannot be inserted at the patient's front teeth due to insufficient curvature of the guide wire. For epiglottis that cannot be lifted and covers the glottis due to anatomical abnormalities or diseases, the tracheal tube is generally inserted blindly under the epiglottis based on experience. If the glottis cannot be seen, the success rate of intubation will inevitably be reduced.
[0005] Therefore, it is necessary to provide a new disposable difficult supraglottic airway tracheal intubation visual guide bougie to solve the above technical problems. Utility Model Content
[0006] The technical problem solved by the utility model is to provide a disposable visual guide bougie for tracheal intubation of a difficult supraglottic airway, which solves the problems in the existing difficult airway treatment technology of insufficient tracheal intubation guide wire, too soft bronchoscope, too thick hard endoscope, poor field of vision in case of airway bleeding, overall softness of the existing guide wire, no division of softness and hardness, and inappropriateness, and also provides a solution to complex difficult airway intubation such as inability to locate the glottis and tracheal rupture.
[0007] In order to solve the above technical problems, the utility model provides a disposable difficult supraglottic airway tracheal intubation visual guide bougie, which includes: a first PVC hose; a second PVC hose, one end of which is fixedly connected to the first PVC hose; an aluminum inner core, which is fixed to the inside of the first PVC hose; a joint, a rubber sleeve is installed on the side wall of the joint, a card slot is provided inside the aluminum inner core, the rubber sleeve is engaged inside the card slot, and a camera and a lighting lamp are installed on the side wall of the joint.
[0008] Preferably, a first electric wire and a second electric wire are respectively installed on the side walls of the connector, the first electric wire is electrically connected to the camera, and the second electric wire is electrically connected to the lighting lamp.
[0009] Preferably, the side wall and one end of the first PVC hose and the aluminum inner core are both arc-shaped structures.
[0010] Preferably, the length of the first PVC hose is 340 mm, and the length of the second PVC hose is 360 mm.
[0011] Preferably, the first PVC hose and the second PVC hose are hollow inside, and the first electric wire and the second electric wire pass through the first PVC hose and the aluminum inner core.
[0012] Preferably, the outer diameters of the first PVC hose and the second PVC hose are 2.7 mm to 5 mm, the inner diameter of the second PVC hose is not less than 2.2 mm, and the inner diameter of the aluminum inner core is 1.5 mm to 3 mm.
[0013] Compared with the related art, the disposable difficult supraglottic airway tracheal intubation visual guide bougie provided by the utility model has the following beneficial effects:
[0014] The utility model provides a disposable difficult supraglottic airway tracheal intubation visual guide bougie, the utility model consists of two parts, the first PVC hose and the second PVC hose, the aluminum inner core is installed inside the first PVC hose to increase the hardness of the first PVC hose, provide sufficient support force during intubation, and avoid the guide wire from being bent when the tracheal tube is inserted; the second PVC hose has good softness, provides sufficient flexibility when the tracheal tube is inserted, and avoids the tracheal tube from being unable to be inserted at the incisor due to insufficient curvature of the guide wire. One end of the aluminum inner core is engaged with the connector, and the side wall of the connector is installed with the camera and the lighting lamp, and the lighting lamp provides light source for the camera to shoot. The camera realizes the visual function. For the difficult supraglottic airway with high larynx, the laryngoscope fails to raise the epiglottis, the cyst is large and compresses the epiglottis so that the glottis cannot be exposed, and the airway is limited in neck movement and cannot be exposed, the visual function can observe the tissue conditions on the glottis (tumor space occupation, bleeding, stenosis, etc.), ensure the reliability of tracheal intubation, and the visual bougie can also observe the difficult subglottic airway such as subglottic tracheal stenosis and scar hyperplasia caused by long-term tracheal intubation and tracheotomy, reduce the occurrence of tracheal tube insertion failure or temporary emergency replacement of tracheal tube, improve the first intubation success rate of difficult airway, and avoid tracheotomy to a certain extent. When the visual function is no longer needed, the connector is pulled out of the aluminum inner core. The aluminum inner core is hollow inside, and oxygen or drug injection can be performed on the tail end of the second PVC hose, and the end-tidal carbon dioxide monitoring equipment can also be connected. After the bougie is connected to the end-tidal carbon dioxide monitoring device, it is feasible to maintain spontaneous breathing and blindly intubate the trachea. In addition, it is suitable for long-term intubated patients to change the tube, avoiding airway damage caused by repeated laryngoscope insertion. The airway can be controlled during the tube change process, which is an option for safe airway management. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 A structural schematic diagram of a preferred embodiment of a disposable difficult supraglottic airway tracheal intubation visual guide bougie provided by the utility model;
[0016] Figure 2 for Figure 1 The schematic diagram of the internal structure of the first PVC hose shown;
[0017] Figure 3 for Figure 2 An enlarged schematic diagram of the structure at A shown;
[0018] Figure 4 for Figure 2 An enlarged schematic diagram of the structure at B shown;
[0019] Figure 5 for Figure 4 The joint structure shown in the side view;
[0020] Figure 6 Schematic diagram of upper airway intubation.
[0021] Numbers in the figure: 1. first PVC hose, 2. second PVC hose, 3. connector, 4. camera, 5. first wire, 6. second wire, 7. aluminum inner core, 8. lighting lamp, 9. rubber sleeve, 10. slot. DETAILED DESCRIPTION
[0022] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.
[0023] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 .in Figure 1 A structural schematic diagram of a preferred embodiment of a disposable difficult supraglottic airway tracheal intubation visual guide bougie provided by the utility model; Figure 2 for Figure 1 The schematic diagram of the internal structure of the first PVC hose shown; Figure 3 for Figure 2 An enlarged schematic diagram of the structure at A shown; Figure 4 for Figure 2 An enlarged schematic diagram of the structure at B shown; Figure 5 for Figure 4 The structure of the connector is shown in the figure. A disposable difficult supraglottic airway tracheal intubation visual guide bougie comprises: a first PVC hose 1; a second PVC hose 2, one end of which is fixedly connected to the first PVC hose 1; an aluminum core 7, which is fixed inside the first PVC hose 1; a connector 3, a rubber sleeve 9 is installed on the side wall of the connector 3, a card slot 10 is provided inside the aluminum core 7, the rubber sleeve 9 is engaged inside the card slot 10, a camera 4 and a lighting lamp 8 are installed on the side wall of the connector 3, when the connector 3 is made, the first wire 5 and the second wire 6 are first passed through the aluminum core 7 and the second PVC hose 2, and then the connector 3 is inserted into the aluminum core 7, the connector 3 drives the rubber sleeve 9 to enter the aluminum core 7, and the rubber sleeve 9 is squeezed and deformed and gradually enters and is engaged in the card slot 10, thereby fixing the connector 3 at one end of the aluminum core 7.
[0024] The side walls of the connector 3 are respectively installed with a first electric wire 5 and a second electric wire 6. The first electric wire 5 is electrically connected to the camera 4. In order to facilitate the connection of the camera 4 to the display screen through the first electric wire 5, the specific conditions of the patient's upper airway can be directly observed during the intubation process. The second electric wire 6 is electrically connected to the lighting lamp 8. In order to facilitate the connection of the second electric wire 6 to the power supply, the lighting lamp 8 is provided with power to enable it to operate and illuminate the upper airway.
[0025] The sidewall and one end of the first PVC hose 1 and the aluminum inner core 7 are both arc-shaped structures. In order to facilitate the first PVC hose 1 and the aluminum inner core 7 to enter the patient's trachea, the first PVC hose 1 wraps one end of the aluminum inner core 7, which can also prevent the aluminum inner core 7 from being too hard to pierce the respiratory tract.
[0026] The length of the first PVC hose 1 is 340 mm, and the length of the second PVC hose 2 is 360 mm.
[0027] The first PVC hose 1 and the second PVC hose 2 are hollow inside, and the first wire 5 and the second wire 6 pass through the first PVC hose 1 and the aluminum inner core 7 to facilitate the connection between the first wire 5 and the second wire 6 and the connector 3 .
[0028] The outer diameters of the first PVC hose 1 and the second PVC hose 2 are 2.7 mm-5 mm, the inner diameter of the second PVC hose 2 is not less than 2.2 mm, and the inner diameter of the aluminum inner core 7 is 1.5 mm-3 mm; the above inner diameter refers to the diameter of the internal cross section, and the outer diameter refers to the maximum diameter of the cross section of the tube body. Within the above size range, products of various sizes and specifications can be produced according to actual needs.
[0029] The working principle of the disposable difficult supraglottic airway tracheal intubation visual guide bougie provided by the utility model is as follows: the utility model consists of two parts: the first PVC hose 1 and the second PVC hose 2. The aluminum inner core 7 containing the joint 3 is installed inside the first PVC hose 1 to increase the hardness of the first PVC hose 1 and provide sufficient supporting force during intubation to avoid the bougie from being bent when the tracheal tube is inserted; the second PVC hose 2 has good softness and provides sufficient flexibility when the tracheal tube is inserted to avoid the tracheal tube being unable to be inserted at the incisor due to insufficient curvature of the bougie.
[0030] When dealing with difficult airway intubation, especially difficult airways such as the patient's glottis cannot be located, the trachea is broken, and long-term tracheal intubation causes subglottic tracheal stenosis and scar hyperplasia, one end of the aluminum inner core 7 is engaged with the joint 3, and the side wall of the joint 3 is installed with the camera 4 and the lighting lamp 8, the lighting lamp 8 provides light source for the camera 4 to shoot, and the camera 4 realizes the visual function. For the supraglottic difficult airway with a high larynx, the laryngoscope fails to lift the epiglottis, the cyst is large and compresses the epiglottis so that the glottis cannot be exposed, and the neck movement is limited and the airway cannot be exposed, the visual function can observe the tissue conditions on the glottis (tumor space occupation, bleeding, stenosis, etc.), to ensure the reliability of tracheal intubation, and the visual bougie can also observe the subglottic difficult airway such as subglottic tracheal stenosis and scar hyperplasia caused by long-term tracheal intubation and tracheotomy, thereby reducing the occurrence of tracheal tube insertion failure or temporary emergency replacement of tracheal tube, improving the first intubation success rate of difficult airway, and avoiding tracheotomy to a certain extent. This technology has low requirements for glottis exposure and clarity, is easy to operate, and greatly saves time for difficult airway intubation. When the visual function is not needed, pull the first wire 5 and the second wire 6, pull the rubber sleeve 9 out of the inside of the groove 10, and gradually pull the connector 3 out of the aluminum inner core 7 and the second PVC hose 2. The aluminum inner core 7 is hollow inside, so the tail end of the second PVC 2 can be oxygenated or injected, and the end-tidal carbon dioxide monitoring device can also be connected. After the bougie is connected to the end-tidal carbon dioxide monitoring device, it is feasible to retain the spontaneous breathing blind tracheal intubation. In addition, this technology does not require the assistance of a visual laryngoscope for the tube replacement operation of long-term intubated patients. When changing the tube, pick up the first PVC hose 1, pass the tail end of the tracheal tube in the patient's body through the aluminum inner core 7 and the second PVC hose 2, and then the bougie is inserted into the patient's trachea along the tracheal tube in the patient's body, and then the tracheal tube to be replaced is removed from the bougie and a new tracheal tube is inserted to easily complete the tube replacement operation. The entire tube exchange process allows control of the patient's airway and is an option for safely managing a difficult airway.
[0031] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A disposable difficult supraglottic airway tracheal intubation visual guide bougie, characterized in that: include: A first PVC hose (1); A second PVC hose (2), one end of the second PVC hose (2) being fixedly connected to the first PVC hose (1); An aluminum inner core (7), wherein the aluminum inner core (7) is fixed inside the first PVC hose (1); A joint (3), a rubber sleeve (9) is installed on the side wall of the joint (3), a slot (10) is provided inside the aluminum inner core (7), the rubber sleeve (9) is engaged inside the slot (10), and a camera (4) and a lighting lamp (8) are installed on the side wall of the joint (3).
2. The disposable difficult supraglottic airway tracheal intubation visual guide bougie according to claim 1, characterized in that: A first electric wire (5) and a second electric wire (6) are respectively installed on the side walls of the connector (3); the first electric wire (5) is electrically connected to the camera (4), and the second electric wire (6) is electrically connected to the lighting lamp (8).
3. The disposable difficult supraglottic airway tracheal intubation visual guide bougie according to claim 1, characterized in that: The side walls and one end of the first PVC hose (1) and the aluminum inner core (7) are both arc-shaped structures.
4. The disposable difficult supraglottic airway tracheal intubation visual guide bougie according to claim 1, characterized in that: The length of the first PVC hose (1) is 340 mm, and the length of the second PVC hose (2) is 360 mm.
5. The disposable difficult supraglottic airway tracheal intubation visual guide bougie according to claim 2, characterized in that: The first PVC hose (1) and the second PVC hose (2) are hollow inside, and the first electric wire (5) and the second electric wire (6) pass through the first PVC hose (1) and the aluminum inner core (7).
6. The disposable difficult supraglottic airway endotracheal intubation visual guide bougie according to claim 1, characterized in that: The outer diameters of the first PVC hose (1) and the second PVC hose (2) are 2.7 mm to 5 mm, the inner diameter of the second PVC hose (2) is not less than 2.2 mm, and the inner diameter of the aluminum inner core (7) is 1.5 mm to 3 mm.