Double-track laryngoscopic lens for replacing trachea cannula catheter and working method of double-track laryngoscopic lens
By setting up a dual-track design on the laryngeal lens and using the old catheter to guide the insertion of the new catheter, the difficulties and risks of replacing the tracheal intubation catheter in the prior art are solved, the safety and success rate of the intubation are improved, and the patient is reduced Risk of hypoxia.
Patent Information
- Application Number
- CN202411860001.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-02-18
AI Technical Summary
The prior art has difficulty, delayed and inapplicable re-entiation when replacing the tracheal intubation catheter, resulting in some patients being hypoxia or iatrogenic damage during the tube replacement process.
Provide a dual-track laryngeal lens. By providing a first guide plate and a second guide plate, the old tracheal intubation catheter is used as a reference to guide the new catheter into the old catheter path, ensuring that the new catheter tip reaches the doorway and reducing the new and old catheters in the The mutual influence in a narrow space increases the safety and success rate of intubation.
Through the dual-track design, the safety and success rate of tracheal intubation replacement is improved, the risk of hypoxia is reduced in patients, and the urgency of replacing the tracheal intubation catheter is alleviated, making the operation more relaxed and safe.
Smart Images
Figure CN119453896A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of medical devices, and in particular to a double-track laryngoscope blade for replacing an endotracheal intubation tube and a working method thereof. Background Art
[0002] Oral endotracheal intubation is an important technical means to treat critically ill patients. In the intensive care unit, the endotracheal intubation tube often needs to be replaced due to factors such as sputum scab blockage, airbag rupture, and tube bite. There are currently two common replacement methods in clinical practice.
[0003] The first method requires that the old endotracheal tube be pulled out of the oropharynx first, and then the new endotracheal tube is reinserted along the original path using auxiliary methods such as laryngoscope, fiberoptic bronchoscope, light stick, and ultrasound. This process is difficult and risky: 1. After a period of oral endotracheal intubation, the throat often has a certain degree of congestion and edema. Even with the assistance of a video laryngoscope, the anatomical structure may not be clearly distinguished. For patients with difficult airways before the first intubation, re-intubation is more difficult; 2. When the oral endotracheal tube is removed, secretions in the oropharynx or subglottic may quickly accumulate in large quantities, reducing the clarity of the field of vision, and clearing the secretions will cause delays in re-intubation. In short, after the old endotracheal tube is pulled out, the swollen throat airway loses the support of the original tube, and the original artificial airway path may even be difficult to find, greatly increasing the difficulty of re-intubation.
[0004] The second method is to replace the catheter with the help of a replacement guide wire. The replacement guide wire is inserted into the old tracheal tube until the tip of the tube, and then the old tracheal tube is pulled out and a new tracheal tube is inserted along the replacement guide wire. This method is only applicable to cases where the tracheal tube balloon is leaking or the single-lumen or double-lumen tube is interchanged, because if there is tracheal tube stenosis, the replacement guide wire is difficult to insert, and during the process of inserting the replacement guide wire into the old tube, the sputum crust in the old tube is easily caused to fall off into the patient's trachea, blocking the airway and causing iatrogenic damage. In short, the method of replacing the catheter with the help of a replacement guide wire is not applicable to cases where the old tube is stenotic.
[0005] In summary, the current technical means of replacing orotracheal tubes have defects such as difficulty in reintubation, delayed reintubation, and inapplicability in some situations, which may lead to hypoxia or iatrogenic damage in some patients during tube replacement. Summary of the invention
[0006] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide a double-track laryngoscope blade for replacing endotracheal intubation tube and a working method thereof. At the beginning of the operation of replacing the endotracheal intubation tube, the old endotracheal intubation tube is retained as a reference, which is convenient for the intubator to distinguish the anatomical structure of the throat and guide the new tube to be inserted along the path of the old tube to ensure that the tip of the new tube can reach the glottis. The double-track design minimizes the mutual influence between the new and old tubes in a small space, thereby increasing the safety and success rate of intubation.
[0007] The purpose of the present invention can be achieved by the following technical solutions:
[0008] The first object of the present invention is to provide a double-track laryngoscope blade for replacing an endotracheal intubation tube, the double-track laryngoscope blade comprising a cannula body, a first guide plate, a second guide plate, and a tongue depressor; the tongue depressor is connected to one end (front end) of the cannula body; the upper surface of the tongue depressor is smoothly connected to the upper surface of the cannula body; the first guide plate and the second guide plate are respectively connected to the two sides of the tongue depressor; the first guide plate is provided with a first track, the first track is used to guide the insertion of a new endotracheal intubation tube; the second guide plate is provided with a second track, the second track is used to guide the insertion of an old endotracheal intubation tube.
[0009] Furthermore, the upper surface of the first guide plate is smoothly connected to the upper surface of the sleeve body; the upper surface of the first guide plate is smoothly connected to the upper surface of the tongue depressor; the upper surface of the second guide plate is smoothly connected to the upper surface of the sleeve body; the upper surface of the second guide plate is smoothly connected to the upper surface of the tongue depressor.
[0010] Furthermore, the first guide plate and the second guide plate are symmetrically arranged on both sides of the sleeve body and the tongue depressor.
[0011] Furthermore, the double-track laryngoscope blade also includes an elastic sheet; the elastic sheet is arranged at the other end (rear end) of the sleeve body.
[0012] Furthermore, a card slot is provided on the elastic sheet; the card slot is used to cooperate with a protrusion on the insertion section of the laryngoscope to disassemble and assemble the double-track laryngoscope blade.
[0013] Furthermore, the first track is arranged on the lower surface of the first guide plate; the first track is a first C-shaped groove arranged along the length direction of the first guide plate; the second track is arranged on the lower surface of the second guide plate; the second track is a second C-shaped groove arranged along the length direction of the second guide plate.
[0014] Furthermore, the diameter of the first C-shaped groove is larger than the outer diameter of the new endotracheal tube; the diameter of the second C-shaped groove is larger than the outer diameter of the old endotracheal tube.
[0015] Furthermore, the first C-shaped groove is arranged along a side surface of the sleeve body; and the second C-shaped groove is arranged along another side surface of the sleeve body.
[0016] Furthermore, the sleeve body is an arc-shaped curved tube; and the tongue depressor is an arc-shaped plate.
[0017] A second object of the present invention is to provide a method for replacing a double-track laryngoscope blade of an endotracheal tube, comprising the following steps:
[0018] Install the double-track laryngoscope blade onto the laryngoscope insertion section;
[0019] Use a double-track laryngoscope blade to insert from the tongue base into the pharynx to expose the glottis. During the insertion process, the old endotracheal tube is embedded in the second track and kept in place.
[0020] After the glottis is exposed by the double-track laryngoscope blade, the new endotracheal intubation tube is inserted along the first track until the tip of the tube is located on the glottis and close to the old endotracheal intubation tube;
[0021] Then release the old endotracheal tube balloon, slowly pull out the old endotracheal tube, and when the tip of the old endotracheal tube is about to leave the glottis, insert the new tube under the glottis until it reaches the predetermined depth, inflate the new endotracheal tube balloon, and at the same time connect the tail end of the new endotracheal tube to the ventilator circuit to continue mechanical ventilation;
[0022] Remove the double-track laryngoscope blade and separate the double-track laryngoscope blade from the laryngoscope insertion section.
[0023] Compared with the prior art, the present invention has the following beneficial effects:
[0024] 1) The technical solution provides a double-track laryngoscope blade for replacing an endotracheal intubation tube, which facilitates the replacement of the endotracheal intubation tube by providing a first guide plate and a second guide plate.
[0025] 2) The technical solution provides a double-track laryngoscope blade for replacing the endotracheal intubation tube. When the operation of replacing the endotracheal intubation tube begins, the old endotracheal intubation tube is retained as a reference, so that the intubator can distinguish the anatomical structure of the throat and guide the new tube to be inserted along the path of the old tube to ensure that the tip of the new tube can reach the glottis. The double-track design minimizes the mutual influence between the new and old tubes in a small space, thereby increasing the safety and success rate of intubation.
[0026] 3) The technical solution provides a double-track laryngoscope blade for replacing endotracheal intubation tubes. During the time when the new endotracheal intubation tube is inserted into the pharynx, the glottis is found, and the tip is sent to the glottis, the old endotracheal intubation tube is retained to maintain mechanical ventilation, providing time guarantee for inserting the new endotracheal intubation tube and fully clearing secretions, thereby minimizing the risk of hypoxia for patients, greatly alleviating the sense of urgency of endotracheal intubation, and making the operation of replacing the endotracheal intubation tube calmer and safer.
[0027] 4) The technical solution provides a double-track laryngoscope blade for replacing endotracheal intubation tubes. The laryngoscope blade is simple to operate and low in cost. There is no need to modify the current common laryngoscope structure and no need to specially train the intubator in operating skills. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 The three-dimensional structure of the double-track laryngoscope blade for replacing the endotracheal intubation tube in an embodiment of the present invention is shown in FIG. Figure 1 (The dotted lines in the figure are used to distinguish and illustrate the first guide plate, the second guide plate, and the tongue depressor, and do not represent the actual structural lines).
[0029] Figure 2 The three-dimensional structure of the double-track laryngoscope blade for replacing the endotracheal intubation tube in an embodiment of the present invention is shown in FIG. Figure 2 .
[0030] Figure 3 The three-dimensional structure of the double-track laryngoscope blade for replacing the endotracheal intubation tube in an embodiment of the present invention is shown in FIG. Figure 3 .
[0031] Figure 4 It is a bottom view of a double-track laryngoscope blade for replacing an endotracheal intubation tube in an embodiment of the present invention.
[0032] Figure 5 A schematic diagram of the three-dimensional structure of inserting a new endotracheal intubation tube and an old endotracheal intubation tube into a double-track laryngoscope blade for replacing an endotracheal intubation tube in an embodiment of the present invention Figure 1 .
[0033] Figure 6 A schematic diagram of the three-dimensional structure of inserting a new endotracheal intubation tube and an old endotracheal intubation tube into a double-track laryngoscope blade for replacing an endotracheal intubation tube in an embodiment of the present invention Figure 2 .
[0034] Figure 7 A schematic diagram of the three-dimensional structure of inserting a new endotracheal intubation tube and an old endotracheal intubation tube into a double-track laryngoscope blade for replacing an endotracheal intubation tube in an embodiment of the present invention Figure 3 .
[0035] Figure 8A schematic diagram of the three-dimensional structure of inserting a new endotracheal intubation tube and an old endotracheal intubation tube into a double-track laryngoscope blade for replacing an endotracheal intubation tube in an embodiment of the present invention Figure 4 .
[0036] in:
[0037] 1. Cannula body; 2-1. New endotracheal tube catheter; 2-2. Old endotracheal tube catheter; 3. First guide plate; 4. Second guide plate; 5. Tongue depressor; 6. Elastic sheet; 7. Slot; 8. First slideway; 9. Second track. DETAILED DESCRIPTION
[0038] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. The features such as component models, material names, connection structures, etc. that are not clearly described in this technical solution are all regarded as common technical features disclosed in the prior art.
[0039] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements; "up", "down", "left", "right" and the like are only used to indicate relative positional relationships, and when the absolute position of the described object changes, the relative positional relationship may change. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0040] It should be noted that, in the present invention, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0041] The present invention is further described in detail below in conjunction with specific embodiments.
[0042] Example 1
[0043] like Figures 1 to 8As shown, in the present embodiment, a double-track laryngoscope blade for replacing an endotracheal tube catheter comprises a cannula body 1, a first guide plate 3, a second guide plate 4, and a tongue depressor 5; the tongue depressor 5 is connected to one end (front end) of the cannula body 1; the upper surface of the tongue depressor 5 is smoothly connected to the upper surface of the cannula body 1; the first guide plate 3 and the second guide plate 4 are respectively connected to the two sides of the tongue depressor 5; the first guide plate 3 is provided with a first track 8, and the first track 8 is used to guide the insertion of a new endotracheal tube catheter 2-1; the second guide plate 4 is provided with a second track 9, and the second track 9 is used to guide the insertion of an old endotracheal tube catheter 2-2.
[0044] The width of the first guide plate 3 at its widest point is 1 / 5 to 1 / 2 of the width of the sleeve body 1 , and the width of the second guide plate 4 at its widest point is 1 / 5 to 1 / 2 of the width of the sleeve body 1 .
[0045] The upper surface of the first guide plate 3 is smoothly connected with the upper surface of the sleeve body 1; the upper surface of the first guide plate 3 is smoothly connected with the upper surface of the tongue depressor 5; the upper surface of the second guide plate 4 is smoothly connected with the upper surface of the sleeve body 1; the upper surface of the second guide plate 4 is smoothly connected with the upper surface of the tongue depressor 5.
[0046] The first guide plate 3 and the second guide plate 4 are symmetrically arranged on both sides of the sleeve body 1 and the tongue depressor 5 .
[0047] The double track laryngoscope blade further comprises an elastic sheet 6, which is arranged at the other end (rear end) of the sleeve body 1. The elastic sheet 6 is provided with a slot 7, which is used to cooperate with the protrusion on the insertion section of the laryngoscope to disassemble and assemble the double track laryngoscope blade.
[0048] The first track 8 is disposed on the lower surface of the first guide plate 3 ; the second track 9 is disposed on the lower surface of the second guide plate 4 .
[0049] The first track 8 is a first C-shaped groove arranged along the length direction of the first guide plate 3, specifically, a protrusion arranged along the side of the sleeve body 1, a protrusion arranged along the lower surface of the first guide plate 3, and a C-shaped groove formed by the side of the sleeve body 1 and the lower surface of the first guide plate 3; the second track 9 is a second C-shaped groove arranged along the length direction of the second guide plate 4, specifically, a protrusion arranged along the side of the sleeve body 1, a protrusion arranged along the lower surface of the second guide plate 4, and a C-shaped groove formed by the side of the sleeve body 1 and the lower surface of the second guide plate 4.
[0050] The diameter of the first C-shaped groove is larger than the outer diameter of the new endotracheal intubation catheter 2-1; the diameter of the second C-shaped groove is larger than the outer diameter of the old endotracheal intubation catheter 2-2.
[0051] The first C-shaped groove is arranged along a side surface of the sleeve body 1 ; and the second C-shaped groove is arranged along another side surface of the sleeve body 1 .
[0052] The sleeve body 1 is an arc-shaped curved tube; the tongue depressor 5 is an arc-shaped plate.
[0053] This embodiment further provides a working method for replacing a double-track laryngoscope blade of an endotracheal intubation tube, comprising the following steps:
[0054] Install the double-track laryngoscope blade on the laryngoscope insertion section;
[0055] Use a double-track laryngoscope blade to insert from the tongue root into the throat to expose the glottis, during the insertion process, the old endotracheal tube 2-2 is embedded in the second track 9 and keeps the position unchanged;
[0056] After the glottis is exposed by the double-track laryngoscope blade, the new endotracheal intubation tube 2-1 is inserted along the first track 8 until the tip of the tube is located on the glottis and closely attached to the old endotracheal intubation tube 2-2;
[0057] Then release the air bag of the old endotracheal tube 2-2, slowly pull out the old endotracheal tube 2-2, and when the tip of the old endotracheal tube 2-2 is about to leave the glottis, insert the new tube under the glottis until it reaches the predetermined depth, inflate the air bag of the new endotracheal tube 2-1, and at the same time connect the tail end of the new endotracheal tube 2-1 to the ventilator circuit to continue mechanical ventilation;
[0058] Remove the double-track laryngoscope blade and separate the double-track laryngoscope blade from the laryngoscope insertion section.
[0059] Example 2
[0060] This embodiment is based on the embodiment 1, and the following settings are distinguished:
[0061] In this embodiment, the first track 8 may be a track formed by the lower surface of the first guide plate 3 and the side surface of the sleeve body 1 , and the second track 9 may be a track formed by the lower surface of the second guide plate 4 and the side surface of the sleeve body 1 .
[0062] The above description of the embodiments is to facilitate the understanding and use of the invention by those skilled in the art. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the scope of protection of the present invention.
Claims
1. A double-track laryngoscope blade for replacing an endotracheal tube, characterized in that: The double-track laryngoscope blade comprises a sleeve body (1), a first guide plate (3), a second guide plate (4), and a tongue depressor (5); The tongue depressor (5) is connected to one end of the sleeve body (1); The upper surface of the tongue depressor (5) and the upper surface of the sleeve body (1) are smoothly connected; The first guide plate (3) and the second guide plate (4) are respectively connected to two sides of the tongue depressor (5); The first guide plate (3) is provided with a first track (8), and the first track (8) is used to guide the insertion of a new endotracheal intubation catheter (2-1); The second guide plate (4) is provided with a second track (9), and the second track (9) is used for guiding the insertion of the old endotracheal intubation catheter (2-2).
2. A double-track laryngoscope blade for replacing an endotracheal tube according to claim 1, characterized in that: The upper surface of the first guide plate (3) is smoothly connected to the upper surface of the sleeve body (1); The upper surface of the first guide plate (3) and the upper surface of the tongue depressor (5) are smoothly connected; The upper surface of the second guide plate (4) is smoothly connected to the upper surface of the sleeve body (1); The upper surface of the second guide plate (4) and the upper surface of the tongue depressor (5) are smoothly connected.
3. A double-track laryngoscope blade for replacing an endotracheal intubation tube according to claim 1, characterized in that: The first guide plate (3) and the second guide plate (4) are symmetrically arranged on both sides of the sleeve body (1) and the tongue depressor (5).
4. A double-track laryngoscope blade for replacing an endotracheal tube according to claim 1, characterized in that: The double-track laryngoscope blade further comprises an elastic sheet (6); The elastic sheet (6) is arranged at the other end of the sleeve body (1).
5. A double-track laryngoscope blade for replacing an endotracheal tube according to claim 4, characterized in that: The elastic sheet (6) is provided with a clamping slot (7); The clamping groove (7) is used to cooperate with the protrusion on the insertion section of the laryngoscope to disassemble and assemble the double-track laryngoscope blade.
6. A double-track laryngoscope blade for replacing an endotracheal tube according to claim 1, characterized in that: The first track (8) is arranged on the lower surface of the first guide plate (3); The first track (8) is a first C-shaped groove arranged along the length direction of the first guide plate (3); The second track (9) is arranged on the lower surface of the second guide plate (4); The second track (9) is a second C-shaped groove arranged along the length direction of the second guide plate (4).
7. A double-track laryngoscope blade for replacing an endotracheal tube according to claim 6, characterized in that: The diameter of the first C-shaped groove is larger than the outer diameter of the new endotracheal intubation tube (2-1); The diameter of the second C-shaped groove is greater than the outer diameter of the old endotracheal intubation tube (2-2).
8. A double-track laryngoscope blade for replacing an endotracheal intubation tube according to claim 6, characterized in that: The first C-shaped groove is arranged along the side surface of the sleeve body (1); The second C-shaped groove is arranged along another side surface of the sleeve body (1).
9. A double-track laryngoscope blade for replacing an endotracheal tube according to claim 1, characterized in that: The sleeve body (1) is an arc-shaped curved pipe; The tongue depressor (5) is a curved plate.
10. A working method for replacing a double-track laryngoscope blade for an endotracheal intubation tube according to any one of claims 1 to 9, characterized in that: The steps include: Install the double-track laryngoscope blade onto the insertion section of the laryngoscope; Use a double-track laryngoscope blade to insert from the tongue root into the pharynx to expose the glottis, during the insertion process, the old endotracheal tube (2-2) is embedded in the second track (9) and keeps the position unchanged; After the glottis is exposed by the double-track laryngoscope blade, a new endotracheal intubation tube (2-1) is inserted along the first track (8) until the tip of the tube is located on the glottis and closely attached to the old endotracheal intubation tube (2-2); Release the air bag of the old endotracheal intubation tube (2-2), pull out the old endotracheal intubation tube (2-2), and when the tip of the old endotracheal intubation tube (2-2) is about to leave the glottis, insert the new tube under the glottis until it reaches a predetermined depth, and inflate the air bag of the new endotracheal intubation tube (2-1); Remove the double-track laryngoscope blade and separate the double-track laryngoscope blade from the laryngoscope insertion section.