Tracheal tube holder with tension reminding function

CN224598540UActive Publication Date: 2026-08-07WEST CHINA HOSPITAL SICHUAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WEST CHINA HOSPITAL SICHUAN UNIV
Filing Date
2025-04-30
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

气管插管是有一定柔性的管,夹持固定的力并非很大,即摩擦力并非很大;气管插管若受到较大的拉力可能外移,气管插管明显外移则影响病人正常通气,若未被发现则非常危险

Benefits of technology

[0014] The beneficial effects of this utility model are as follows: The method of use is the same as the prior art; the panel is fixed in front of the patient's mouth, and the clamping structure clamps and fixes the endotracheal tube. The force compressing the elastic rear support structure of this utility model should be less than the maximum frictional force exerted on the endotracheal tube by the clamping structure.

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Abstract

The utility model discloses a tracheal cannula fixer with tension reminding function, including panel and clamping structure, and clamping structure is connected with the panel, still include reminder and reminder frame, clamping structure vertical setting is in the front of panel, and the upper end of clamping structure is hinged with the panel, and reminder frame is located below clamping structure and is connected with the panel, and reminder is located in the front of panel, and reminder includes reminder seat, reminding structure and elastic rear top structure, and reminder seat is connected with reminder frame, and reminding structure and elastic rear top structure all install on reminder seat, and elastic rear top structure rear top clamping structure makes the distance between clamping structure and reminding structure, when the force that clamping structure suffers to the front is greater than the force that elastic rear top structure rear top, and clamping structure swings to the front drive reminding structure. When tracheal cannula is pulled, the tension is transferred to clamping structure, and then is transferred to elastic rear top structure, makes elastic rear top structure compression, and clamping structure swings to the front drive reminding structure realizes the warning.
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Description

Technical Field

[0001] This utility model relates to the field of endotracheal tube fixation devices, and in particular to an endotracheal tube fixation device with a tension warning function. Background Technology

[0002] An endotracheal tube fixator is a medical device used to secure an endotracheal tube inserted through the mouth. Existing endotracheal tube fixators include a panel, a clamping structure, straps, and a bite block. The clamping structure is located at the front of the panel and connected to it; the panel has an opening for the endotracheal tube to pass through, which typically extends from the top edge of the panel to the rear of the clamping structure. Straps are connected to both ends of the panel, and the bite block is located at the rear of the panel and connected to it. When using the endotracheal tube fixator, the panel is placed in front of the patient's mouth, the bite block is inserted into the mouth, and the straps are wrapped around the back of the patient's head and fastened; the straps secure the panel and prevent it from shifting forward; the bite block separates the patient's two rows of teeth to prevent the teeth from flattening the endotracheal tube and affecting ventilation. The endotracheal tube is moved through the opening on the panel to the clamping structure for clamping and fixation. Additionally, the panel has a cleaning hole for oral cleaning.

[0003] The endotracheal tube is secured by clamps, relying on the friction between the clamping structure and the tube to prevent it from shifting outwards. The endotracheal tube is a relatively flexible tube, and the clamping force is not very strong, meaning the friction is not significant. However, if the endotracheal tube is subjected to a large pulling force, it may shift outwards. Significant outward shift of the endotracheal tube will affect the patient's normal ventilation, and if this goes unnoticed, it can be extremely dangerous. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an endotracheal tube fixation device that can provide a reminder when the endotracheal tube is subjected to significant tension.

[0005] The technical solution adopted to solve the above-mentioned technical problems is as follows: A endotracheal tube fixator with a tension reminder function includes a panel and a clamping structure, the clamping structure being connected to the panel; it also includes a reminder device and a reminder device frame; the clamping structure is vertically positioned in front of the panel, and its upper end is hinged to the panel; the reminder device frame is located below the clamping structure and connected to the panel; the reminder device is located in front of the panel, and includes a reminder device base, a reminder structure, and a flexible rear support structure; the reminder device base is connected to the reminder device frame, and both the reminder structure and the flexible rear support structure are mounted on the reminder device base; the flexible rear support structure pushes against the clamping structure to create a distance between the clamping structure and the reminder structure; when the forward force on the clamping structure is greater than the backward force of the flexible rear support structure, the clamping structure swings forward to drive the reminder structure.

[0006] Furthermore, a pressing protrusion is provided at the lower front end of the panel; the reminder structure includes a battery, a speaker, and a button switch, with the button switch facing the pressing protrusion and connected to the speaker and battery, and the button switch is normally open; when the clamping structure swings forward, the pressing protrusion presses the button switch, and the battery supplies power to the speaker to make the speaker sound.

[0007] Furthermore, the elastic rear top structure is arranged in the front and rear directions. The elastic rear top structure includes a connecting cover and a spring, and the connecting cover is threadedly connected to the reminder seat.

[0008] Furthermore, when the elastic rear top structure is used for clamping, the rear end of the clamping structure rests against the panel, and the distance between the pressing protrusion and the button switch is 5mm.

[0009] Furthermore, the clamping structure includes a clamping block, a slider, and a lower screw. The clamping block is hinged to the panel. The clamping block has a square hole, an entry groove, and a lower arc groove. The square hole is arranged vertically, and the entry groove is located at the lower part of the square hole. The entry groove extends from either the left or right side of the clamping block to the square hole. The lower arc groove is located on the lower wall of the square hole. The part of the square hole above the entry groove is a guide groove. The slider is located in the guide groove and cooperates with the guide groove. The lower end of the slider has an upper arc groove. The lower screw is threaded to the upper end of the clamping block and can push the slider downward.

[0010] Furthermore, the panel has an L-shaped groove that extends from the upper edge of the panel to the rear of the lower arc groove.

[0011] Furthermore, the panel has cleaning holes.

[0012] Furthermore, it includes a dental pad, which is located behind the panel and connected to the panel.

[0013] Furthermore, both ends of the panel are connected by straps.

[0014] The beneficial effects of this utility model are as follows: The method of use is the same as the prior art; the panel is fixed in front of the patient's mouth, and the clamping structure clamps and fixes the endotracheal tube. The force compressing the elastic rear support structure of this utility model should be less than the maximum frictional force exerted on the endotracheal tube by the clamping structure.

[0015] When the endotracheal tube is stretched, the force is transmitted to the clamping structure and then to the elastic rear support structure. When the stretching force is large, the elastic rear support structure is compressed, causing the clamping structure to swing forward and drive the alerting structure, which then issues a warning. With the alerting structure's warning, medical staff are aware that the endotracheal tube is being stretched and can take timely action to prevent it from shifting outwards. Even if the stretching force is large enough to cause the endotracheal tube to shift outwards momentarily, medical staff can quickly reposition the tube to avoid significant impact on the patient. Attached Figure Description

[0016] Figure 1 This is the front view of a endotracheal tube fixator with a tension warning function;

[0017] Figure 2 This is a top view of an endotracheal tube fixator with a tension warning function;

[0018] Figure 3 yes Figure 1 A magnified view of a portion of the image;

[0019] Figure 4 yes Figure 1 AA section view;

[0020] Figure 5 This is a schematic diagram of the reminder structure;

[0021] Reference numerals: Panel 1, L-shaped groove 11, cleaning hole 12, clamping structure 2, clamping block 21, square hole 211, guide groove 2111, entry groove 212, lower arc groove 213, pressing protrusion 214, slider 22, upper arc groove 221, lower top screw 23, reminder bracket 3, reminder 4, reminder base 41, reminder structure 42, button switch 421, sounder 422, battery 423, elastic rear top structure 43, connecting cover 431, spring 432, strap 5, tooth pad 6. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] like Figures 1 to 4 As shown, the endotracheal tube retainer with a tension reminder function includes a panel 1 and a clamping structure 2, which is connected to the panel 1; it also includes a reminder 4 and a reminder frame 3; the clamping structure 2 is vertically positioned in front of the panel 1, and its upper end is hinged to the panel 1; the reminder frame 3 is located below the clamping structure 2 and is connected to the panel 1; the reminder 4 is located in front of the panel 1, and includes a reminder base 41, a reminder structure 42, and an elastic rear support structure 43. The reminder base 41 is connected to the reminder frame 3, and both the reminder structure 42 and the elastic rear support structure 43 are mounted on the reminder base 41. The elastic rear support structure 43 pushes the clamping structure 2 from behind, creating a distance between the clamping structure 2 and the reminder structure 42; when the forward force on the clamping structure 2 is greater than the backward force of the elastic rear support structure 43, the clamping structure 2 swings forward, driving the reminder structure 42.

[0024] The main improvement of this utility model compared with the prior art is that the fixed connection between the clamping structure 2 and the panel 1 in the prior art is changed to a hinged connection, and a reminder 4 and a reminder frame 3 are added. Other structures of the endotracheal tube fixation device can refer to the prior art. For example, the panel 1 has an L-shaped groove 11, which extends from the upper edge of the panel 1 to the rear of the lower arc groove 213. The L-shaped groove 11 is used for the passage of the endotracheal tube, so that the endotracheal tube can be moved from outside the panel 1 to the clamping structure 2. The panel 1 has a cleaning hole 12, through which oral cleaning can be achieved. It includes a bite pad 6, which is located behind the panel 1 and connected to the panel 1. The bite pad 6 is used to separate the patient's two rows of teeth to prevent the teeth from flattening the endotracheal tube and affecting ventilation. Both ends of the panel 1 are connected to straps 5, which are wrapped around the back of the patient's head and tied to fix the panel 1 and prevent the panel 1 from moving forward.

[0025] Regarding design parameters, the force compressing the elastic rear support structure 43 of this utility model should be less than the maximum frictional force exerted on the endotracheal tube by the clamping structure, so as to provide an alert when the endotracheal tube has not moved. Of course, the force compressing the elastic rear support structure 43 should not be too small to avoid frequent and unnecessary alarms.

[0026] During use, when the endotracheal tube is stretched, the force is transmitted to the clamping structure 2 and then to the elastic rear support structure 43. When the stretching force is large, the elastic rear support structure 43 is compressed, causing the clamping structure 2 to swing forward and drive the alerting structure 42, which then provides a warning. With the alert from the alerting structure 42, medical staff are aware that the endotracheal tube is being stretched and can take timely action to prevent it from shifting outwards. Even if the stretching force is large enough to cause the endotracheal tube to shift outwards momentarily, medical staff can quickly reposition the endotracheal tube to avoid significant impact on the patient.

[0027] The specific structure of structure 42 can be as follows: Figure 4 and Figure 5 As shown: A pressing protrusion 214 is provided at the lower front end of panel 1; the reminder structure 42 includes a battery 423, a sound generator 422 and a button switch 421. The button switch 421 faces the pressing protrusion 214 and is connected to the sound generator 422 and the battery 423. The button switch 421 is normally open; when the clamping structure 2 swings forward, the pressing protrusion 214 presses the button switch 421, and the battery 423 supplies power to the sound generator 422 to make the sound generator 422 emit a sound.

[0028] The battery 423, the sound generator 422, and the push-button switch 421 are connected in a simple series. Of course, the alarm structure 42 can also be set to continuously alarm until the alarm is manually turned off.

[0029] The preferred structure of the elastic rear top structure 43 is as follows: the elastic rear top structure 43 is arranged in the front and rear direction, and the elastic rear top structure 43 includes a connecting cover 431 and a spring 432. The connecting cover 431 is threadedly connected to the reminder seat 41.

[0030] When spring 432 is in a compressed state, its elastic force pushes against clamping structure 2, and the rear end of clamping structure 2 abuts against panel 1, thus preventing clamping structure 2 from easily swinging. The compression of spring 432 can be adjusted by rotating connecting cover 431 to move it back and forth, thereby adjusting the force exerted by spring 432, which in turn adjusts the force on the endotracheal tube for this invention's alarm function.

[0031] There should obviously be a distance between the pressing protrusion 214 and the button switch 421. This distance should not be too large or too small, and is preferably 5mm.

[0032] The specific structure of the clamping structure 2 can be as follows: The clamping structure 2 includes a clamping block 21, a slider 22, and a lower screw 23. The clamping block 21 is hinged to the panel 1. The clamping block 21 has a square hole 211, an entry groove 212, and a lower arc groove 213. The square hole 211 is arranged vertically. The entry groove 212 is located at the lower part of the square hole 211 and extends from either the left or right side of the clamping block 21 to the square hole 211. The lower arc groove 213 is located on the lower wall of the square hole 211. The part of the square hole 211 above the entry groove 212 is a guide groove 2111. The slider 22 is located in the guide groove 2111 and cooperates with the guide groove 2111. The lower end of the slider 22 has an upper arc groove 221. The lower screw 23 is threaded to the upper end of the clamping block 21 and can push the slider 22 downward.

[0033] The endotracheal tube is inserted between the lower arc-shaped groove 213 and the upper arc-shaped groove 22, and then the lower screw 23 is tightened to push the lower slider 22, which in turn presses the endotracheal tube.

Claims

1. A endotracheal tube retainer with a tension warning function, comprising a panel (1) and a clamping structure (2), wherein the clamping structure (2) is connected to the panel (1); characterized in that: The device includes a reminder (4) and a reminder holder (3); a clamping structure (2) is vertically positioned in front of the panel (1), and the upper end of the clamping structure (2) is hinged to the panel (1); the reminder holder (3) is located below the clamping structure (2) and connected to the panel (1); the reminder (4) is located in front of the panel (1), and the reminder (4) includes a reminder base (41), a reminder structure (42), and an elastic rear-top structure (43). The reminder base (41) is connected to the reminder holder (3), and the reminder structure (42) and the elastic rear-top structure (43) are both mounted on the reminder base (41). The elastic rear-top structure (43) pushes the clamping structure (2) to create a distance between the clamping structure (2) and the reminder structure (42); when the forward force on the clamping structure (2) is greater than the backward force of the elastic rear-top structure (43), the clamping structure (2) swings forward to drive the reminder structure (42).

2. The endotracheal tube fixation device with tension warning function according to claim 1, characterized in that: A pressing protrusion (214) is provided at the lower front end of the panel (1); the reminder structure (42) includes a battery (423), a speaker (422) and a button switch (421), the button switch (421) faces the pressing protrusion (214) and is connected to the speaker (422) and the battery (423), and the button switch (421) is normally open; when the clamping structure (2) swings forward, the pressing protrusion (214) presses the button switch (421), and the battery (423) supplies power to the speaker (422) to make the speaker (422) emit sound.

3. The endotracheal tube fixation device with tension warning function according to claim 2, characterized in that: The elastic rear top structure (43) is arranged in the front and back direction. The elastic rear top structure (43) includes a connecting cover (431) and a spring (432). The connecting cover (431) is threadedly connected to the reminder seat (41).

4. The endotracheal tube fixation device with tension warning function according to claim 3, characterized in that: When the elastic rear top structure (43) and the rear top clamping structure (2) are in use, the rear end of the clamping structure (2) abuts against the panel (1), and the distance between the pressing protrusion (214) and the button switch (421) is 5mm.

5. The endotracheal tube fixation device with a tension warning function according to any one of claims 1 to 4, characterized in that: The clamping structure (2) includes a clamping block (21), a slider (22), and a bottom screw (23). The clamping block (21) is hinged to the panel (1). The clamping block (21) has a square hole (211), an entry groove (212), and a lower arc groove (213). The square hole (211) is arranged vertically, and the entry groove (212) is located at the lower part of the square hole (211). The entry groove (212) extends from either the left or right side of the clamping block (21) to the square hole (211). The lower arc groove (213) is located on the lower wall of the square hole (211). The part of the square hole (211) above the inlet groove (212) is the guide groove (2111). The slider (22) is located in the guide groove (2111) and cooperates with the guide groove (2111). The lower end of the slider (22) has an upper arc groove (221). The lower screw (23) is threaded to the upper end of the clamping block (21). The lower screw (23) can push the slider (22) down.

6. The endotracheal tube fixation device with tension reminder function according to claim 5, characterized in that: The panel (1) has an L-shaped groove (11) that extends from the upper edge of the panel (1) to the rear of the lower arc groove (213).

7. The endotracheal tube fixation device with tension reminder function according to claim 6, characterized in that: The panel (1) has a cleaning hole (12).

8. The endotracheal tube fixation device with tension reminder function according to claim 7, characterized in that: Includes a dental pad (6), which is located behind the panel (1) and connected to the panel (1).

9. The endotracheal tube fixation device with tension reminder function according to claim 8, characterized in that: Both ends of the panel (1) are connected with straps (5).