Tracheal catheter fixing and shifting preventing device for anesthesia

Abstract

The invention discloses a tracheal catheter fixing and shifting preventing device for anesthesia, and belongs to the technical field of medical equipment. The tracheal catheter fixing and shifting preventing device for anesthesia comprises a face fixing structure, a hard supporting cylinder arranged on the face fixing structure and an elastic bag body which is fixedly connected to the inner wall of the hard supporting cylinder and used for being tightly attached to the outer wall of a tracheal catheter and fixing the tracheal catheter. The face fixing structure comprises a supporting strip attached to the middle of a person, medical adhesive stickers symmetrically and fixedly connected to the two sides of the supporting strip and used for being fixedly bonded to the cheeks, and a nose clip assembly arranged on the supporting strip and used for being fixed to the nose. According to the tracheal catheter fixing and anti-displacement device for anesthesia, three-point anchoring is formed through the supporting strip, the medical adhesive tape and the nose clip assembly, firm fixing can be achieved without a head bandage, the tracheal catheter fixing and anti-displacement device is matched with a post-brain operation scene, meanwhile, the hard supporting barrel integrates the tooth cushion function, an elastic bag is arranged in the hard supporting barrel, double protection is achieved, catheter occlusion or displacement or damage is avoided, and ventilation safety is guaranteed.

Description

Technical Field

[0001] This application relates to the field of medical device technology, specifically a device for fixing and preventing displacement of anesthesia endotracheal tubes. Background Technology

[0002] In clinical anesthesia, the stable fixation of the endotracheal tube is a crucial step in ensuring patient ventilation safety and the smooth conduct of surgery.

[0003] Chinese utility model patent CN211536093U discloses a tracheal tube fixation device for anesthesiology. It uses a cotton Velcro headband to fix the tube to a curved mask, and a concave block and groove to clamp the tracheal tube, achieving stable fixation, convenient use, disassembly and adjustment, and high patient comfort, facilitating operation by medical staff. However, this method of tracheal tube fixation relies heavily on a headband and a bite block. The bite block and tracheal tube are fixed to the patient's head together with cotton Velcro, using the bite block to prevent the patient from biting down on the tube during surgery. However, the headband occupies space behind the patient's head. When the patient needs surgery on the posterior brain region, such as the cervical spine, the band can easily interfere with the surgical area, affecting surgical field exposure and interfering with the operation of surgical instruments, reducing surgical safety and efficiency. Furthermore, this device only provides simple clamping of the tracheal tube through the concave block and groove; the patient may bite down on the tracheal tube while unconscious during surgery, obstructing the airway and affecting ventilation.

[0004] Therefore, this application provides a device for fixing and preventing displacement of anesthesia endotracheal tubes to solve the above-mentioned problems. Summary of the Invention

[0005] This application provides a device for fixing and preventing displacement of endotracheal tubes for anesthesia, aiming to solve the problems mentioned in the background art, such as existing endotracheal tube fixing devices for anesthesia relying on head wrapping for fixation, which easily interferes with surgical operations in the posterior brain region, affects surgical field exposure and surgical safety, and only fixing the tube with a simple clamping structure is not effective in preventing patients from unconsciously biting off the tube, which can easily lead to obstruction of the airway.

[0006] To achieve the above objectives, this application provides the following technical solution: a device for fixing and preventing displacement of anesthesia endotracheal tube, comprising a facial fixation structure for fixing to the face, a rigid support cylinder disposed on the facial fixation structure for inserting into the oral cavity to support the oral cavity, and an elastic bladder fixedly connected to the inner wall of the rigid support cylinder for tightly fitting and fixing the endotracheal tube to the outer wall of the endotracheal tube. The facial fixation structure includes a support strip that fits into the philtrum, medical adhesive tapes that are symmetrically fixed to both sides of the support strip for bonding and fixing to the cheeks, and a nose clip assembly that is set on the support strip for fixing to the nose. The support strip is equipped with an adjustment structure for connecting with the rigid support cylinder to adjust the position of the endotracheal tube. By fitting the support strip to the philtrum and using medical adhesive to adhere to the cheek and nose clip component to clamp the nose, a stable three-point anchoring structure can be formed. This eliminates the need for a head wrap to securely fix the device to the face, thus avoiding the interference of traditional straps on posterior head surgery operations and improving adaptability to special surgical scenarios. At the same time, the rigid support cylinder integrates a bite pad function and has a built-in elastic bladder, which can effectively prevent patients from biting down on the tube to ensure ventilation safety. The elastic bladder also provides evenly distributed annular friction force through adaptive wrapping, fundamentally solving the risk of endotracheal tube displacement, dislodgement, or damage, ensuring the safety of anesthesia ventilation. In addition, the adjustment structure can flexibly adjust the left and right positions of the rigid support cylinder, thereby fine-tuning the placement of the endotracheal tube at the corner of the mouth to adapt to patients with different facial anatomy structures, ensuring that the tube is at the optimal ventilation angle and improving the flexibility of use.

[0007] Preferably, to achieve the left and right position adjustment of the rigid support tube, the adjustment structure includes a recessed frame slidably connected to the side of the support bar away from the philtrum, a connecting shaft symmetrically fixedly connected to the top and bottom of the recessed frame near the support bar and slidably connected to the support bar, a fixing bar fixedly connected to the bottom of the recessed frame and fixedly connected to the rigid support tube, and a locking member provided on the recessed frame for locking the position of the recessed frame. By sliding the recessed frame and the connecting shaft in the guide groove of the support bar, the fixing bar and the rigid support tube can be moved as a whole, thereby adjusting the position of the endotracheal tube at the corner of the mouth. After the position is determined, the position of the recessed frame is locked by the locking member, thus ensuring the stability of the adjustment structure.

[0008] Preferably, in order to lock and unlock the recess, the locking component includes a locking screw that extends laterally through the recess on the side away from the support bar and is screwed onto the recess to press the recess against the support bar, and a second knob fixedly connected to the end of the locking screw away from the recess; by screwing the locking screw onto the recess, rotating the second knob can drive the locking screw to move laterally, thereby pressing against or disengaging from the support bar, thus locking and unlocking the recess, which is convenient to operate.

[0009] Preferably, in order to ensure the sliding of the connecting shaft, the support bar is provided with guide grooves at the positions of the two connecting shafts, and the connecting shaft is slidably connected in the guide grooves; the design of the guide grooves can restrict the connecting shaft to slide only along the direction of the guide grooves, avoid deviation or jamming during the sliding process, thereby ensuring that the concave frame drives the rigid support cylinder to adjust smoothly and improve the accuracy of position adjustment.

[0010] Preferably, to prevent displacement of the rigid support tube, an occlusal groove is fixedly provided on the outer side of the end of the rigid support tube away from the fixing strip for the patient's teeth to bite and prevent slippage. The design of the occlusal groove increases the contact friction between the teeth and the rigid support tube, so that the patient's teeth can form a stable limit through the occlusal groove when biting, reducing unconscious biting and sliding during the operation, thereby achieving axial fixation of the rigid support tube. Combined with the radial fastening of the elastic bladder, it further improves the overall fixation reliability of the endotracheal tube and prevents the endotracheal tube from shifting or falling out.

[0011] Preferably, to achieve fixation with the nose, the nose clip assembly includes a connecting strip fixedly connected to the top of the support strip and located on one side of the recess; a connecting seat fixedly connected to the end of the connecting strip away from the support strip; a groove formed on the side of the connecting seat away from the connecting strip; a bidirectional screw rod transversely passing through the connecting seat and rotatably connected within the groove; a slider symmetrically slidably connected within the groove and screwed to the bidirectional screw rod; a clamping block fixedly connected to the side of the slider away from the groove; and a knob one disposed on the outside of the connecting seat and fixedly connected to one end of the bidirectional screw rod. By rotating the knob one, the bidirectional screw rod is driven to rotate, which can drive the two sliders to slide in opposite directions along the groove, thereby clamping or loosening the clamping block. This allows the clamping degree to be adjusted according to the size of the patient's nose, adapting to different nasal shapes and improving the stability and flexibility of the clamping fixation.

[0012] Preferably, in order to adapt to the position and angle of the nose, the connecting strip is a flexible strip; the flexible strip can be flexibly bent and its angle can be adjusted according to the contour and position of the patient's nose, so that the connecting seat drives the clamp to accurately fit the two sides of the nose, thereby achieving a close fit between the nose clip assembly and the nose of different patients, and improving the reliability of clamping and fixing.

[0013] Preferably, in order to reduce the pressure damage to the skin caused by the device and improve wearing comfort, silicone pads are fixedly installed on the side of the two clamps near the nose and the side of the support strip near the philtrum. The silicone pads are soft and elastic, which can conform to the contour of the facial skin, distribute local pressure, and avoid the hard structure directly contacting the skin to avoid causing chafing marks and pressure damage, thereby improving the patient's wearing comfort during the operation and reducing skin irritation. At the same time, the silicone pads can increase the friction between the device and the skin, enhance the tightness of the facial fixation structure and the face, indirectly improve the overall fixation stability of the device, and reduce the risk of device displacement caused by skin slippage.

[0014] This endotracheal tube fixation and anti-displacement device for anesthesia uses a support strip attached to the philtrum and medical adhesive to adhere to the cheeks, and a nose clip component to clamp the nose, forming a stable three-point anchoring structure. This eliminates the need for a head wrap to securely fix the device to the face, thus avoiding interference from traditional straps during posterior head surgery and improving adaptability to special surgical scenarios. This endotracheal tube fixation and anti-displacement device for anesthesia integrates a bite pad function with a rigid support cylinder and a built-in elastic bladder. It can effectively prevent patients from biting down on the tube and ensure ventilation safety. At the same time, the elastic bladder can adaptively wrap around the tube and provide a uniformly distributed annular friction force, which fundamentally solves the risk of endotracheal tube displacement, dislodgement or damage, and ensures the safety of anesthesia ventilation. This endotracheal tube fixation and anti-displacement device for anesthesia can flexibly adjust the left and right positions of the rigid support tube through an adjustable structure, thereby fine-tuning the placement of the endotracheal tube at the corner of the mouth to adapt to patients with different facial anatomy structures, ensuring that the tube is at the optimal ventilation angle and improving the flexibility of use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the application structure of a device for fixing and preventing displacement of anesthesia endotracheal tubes. Figure 2 This is a schematic diagram of a device for fixing and preventing displacement of anesthesia endotracheal tubes. Figure 3 This is a schematic diagram of the support strip in a device for fixing and preventing displacement of anesthesia endotracheal tubes. Figure 4 This is a schematic diagram of the rigid support cylinder and adjustment structure in a device for fixing and preventing displacement of anesthesia endotracheal tubes; Figure 5 This is a partial structural diagram of the adjustment structure in a device for fixing and preventing displacement of anesthesia endotracheal tubes. Figure 6 This is a schematic diagram of the rigid support cylinder in a device for fixing and preventing displacement of anesthesia endotracheal tubes; Figure 7 This is a schematic diagram of the nose clip assembly in a device for fixing and preventing displacement of anesthesia endotracheal tubes.

[0016] In the picture: 1. Facial fixation structure; 11. Support bar; 111. Guide groove; 12. Medical adhesive tape; 13. Nose clip assembly; 131. Connecting bar; 132. Connecting seat; 133. Slide groove; 134. Bidirectional screw; 135. Slider; 136. Clamping block; 137. Knob one; 3. Rigid support cylinder; 31. Engagement groove; 4. Elastic capsule; 5. Adjustment structure; 51. Recessed bracket; 52. Connecting shaft; 53. Fixing strip; 54. Locking component; 541. Locking screw; 542. Knob II; 6. Silicone pad. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0018] This embodiment provides a device for fixing and preventing displacement of anesthesia endotracheal tubes, such as... Figures 1-7 As shown, the endotracheal tube fixation and anti-displacement device for anesthesia includes a facial fixation structure 1 for fixing to the face, a rigid support cylinder 3 disposed on the facial fixation structure 1 for inserting into the oral cavity to support the oral cavity, and an elastic bladder 4 fixedly connected to the inner wall of the rigid support cylinder 3 for tightly fitting and fixing the endotracheal tube to the outer wall; the facial fixation structure 1 includes a support strip 11 attached to the philtrum, medical adhesive tape 12 symmetrically fixedly connected to both sides of the support strip 11 for bonding and fixing to the cheek, and a nose clip assembly 13 disposed on the support strip 11 for fixing to the nose; the support strip 11 is provided with an adjustment structure 5 for connecting with the rigid support cylinder 3 to adjust the position of the endotracheal tube.

[0019] In order to prevent the rigid support tube 3 from shifting, an occlusal groove 31 is fixedly provided on the outer side of the end of the rigid support tube 3 away from the fixing strip 53 for the patient's teeth to bite and prevent slippage. The design of the occlusal groove 31 increases the contact friction between the teeth and the rigid support tube 3, so that the patient's teeth can form a stable limit through the occlusal groove 31 when biting, reducing unconscious biting and sliding during the operation, thereby achieving axial fixation of the rigid support tube 3. Combined with the radial fastening of the elastic capsule 4, it further improves the overall fixation reliability of the endotracheal tube and prevents the endotracheal tube from shifting and falling out.

[0020] In use, first attach the support strip 11 of the facial fixation structure 1 to the philtrum, then attach the medical adhesive tapes 12 on both sides of the support strip 11 to the corresponding positions on the cheeks for initial fixation. Next, operate the nose clip assembly 13 to clamp the nose. Through the attachment of the support strip 11, the adhesion of the medical adhesive tapes 12, and the clamping of the nose clip assembly 13, a three-point anchoring is formed, completing the firm fixation of the facial fixation structure 1 to the face. Then, insert the rigid support cylinder 3 into the patient's mouth to provide support for the mouth and provide an installation carrier for the endotracheal tube. Then, insert the endotracheal tube through the rigid support cylinder 3. The elastic bladder 4 on the inner wall of the rigid support cylinder 3 fits tightly against the outer wall of the endotracheal tube to achieve radial fixation of the endotracheal tube. However, when it is necessary to adapt to different patients' facial anatomy or adjust the position of the endotracheal tube, operate the adjustment structure 5 on the support strip 11 to move the rigid support cylinder 3 to the appropriate position, ensuring that the endotracheal tube is in the optimal ventilation state, thus completing the installation and debugging of the entire device.

[0021] It should be noted that the release paper adhered to the surface of the medical adhesive patch 12 before use can effectively isolate external dust, moisture and contaminants, prevent the adhesive surface of the medical adhesive patch 12 from failing prematurely or becoming contaminated with impurities, and ensure its adhesive strength and cleanliness during use. When using it, medical staff can directly tear off the release paper and stick the medical adhesive patch 12 to the patient's cheek. The support bar 11 is made of elastic material and can bend and fit the contour of the patient's philtrum. It can not only fit the face tightly through elastic deformation to improve fixation stability, but also disperse local pressure to avoid marks. At the same time, it can adapt to the wearing needs of patients with different facial contours, enhancing the versatility and wearing comfort of the device.

[0022] Specifically, the adjustment structure 5 includes a recessed frame 51 slidably connected to the side of the support bar 11 away from the philtrum, a connecting shaft 52 symmetrically fixedly connected to the top and bottom of the recessed frame 51 near the support bar 11 and slidably connected to the support bar 11, a fixing bar 53 fixedly connected to the bottom of the recessed frame 51 and fixedly connected to the rigid support cylinder 3, and a locking member 54 provided on the recessed frame 51 for locking the position of the recessed frame 51; the locking member 54 includes a locking screw 541 that runs laterally through the side of the recessed frame 51 away from the support bar 11 and is screwed to the recessed frame 51 for pressing the recessed frame 51 against the support bar 11, and a knob 542 fixedly connected to the end of the locking screw 541 away from the recessed frame 51.

[0023] In addition, to ensure the sliding of the connecting shaft 52, the support bar 11 is provided with guide grooves 111 at the positions of the two connecting shafts 52, and the connecting shaft 52 is slidably connected in the guide grooves 111. The design of the guide grooves 111 can restrict the connecting shaft 52 to slide only along the direction of the guide grooves 111, avoid deviation or jamming during the sliding process, thereby ensuring that the concave frame 51 drives the rigid support cylinder 3 to adjust smoothly and improve the accuracy of position adjustment.

[0024] When the position of the endotracheal tube needs to be adjusted, first rotate knob 542 to drive the locking screw 541 to rotate spirally along the recess 51, so that the locking screw 541 moves away from the support bar 11 and is unlocked. Then push the recess 51, so that the connecting shaft 52 of the top and bottom of the side near the support bar 11 slides in a direction along the corresponding guide groove 111 on the support bar 11. At this time, due to the connection between the fixing bar 53 and the rigid support cylinder 3 and the recess 51, the recess 51 can move synchronously with the fixing bar 53 and the rigid support cylinder 3 until the rigid support cylinder 3 drives the endotracheal tube to be adjusted to the target position. Finally, rotate knob 542 in the opposite direction to drive the locking screw 541 to rotate spirally along the recess 51 and press against the support bar 11, so that the recess 51 can be locked in the current position, completing the adjustment and fixation of the endotracheal tube position.

[0025] Furthermore, the nose clip assembly 13 includes a connecting strip 131 fixedly connected to the top of the support strip 11 and located on one side of the recess 51, a connecting seat 132 fixedly connected to the end of the connecting strip 131 away from the support strip 11, a groove 133 opened on the side of the connecting seat 132 away from the connecting strip 131, a bidirectional screw 134 that runs laterally through the connecting seat 132 and is rotatably connected in the groove 133, a slider 135 that is symmetrically slidably connected in the groove 133 and screwed to the bidirectional screw 134, a clamping block 136 fixedly connected to the side of the slider 135 away from the groove 133, and a knob 137 that is disposed on the outside of the connecting seat 132 and fixedly connected to one end of the bidirectional screw 134.

[0026] It is worth noting that, in order to adapt to the position and angle of the nose, the connecting strip 131 is a soft strip; the soft strip can be flexibly bent and the angle can be adjusted according to the contour and position of the patient's nose, so that the connecting seat 132 drives the clamp 136 to accurately fit the two sides of the nose, thereby achieving a close fit between the nose clip assembly 13 and the nose of different patients, and improving the reliability of clamping and fixing.

[0027] After the medical adhesive patches 12 on both sides of the support strip 11 are initially fixed to the corresponding positions on the cheeks, the medical staff first adjusts the angle and position of the connecting seat 132 according to the patient's nose position using the flexible connecting strip 131, so that the two clamps 136 correspond to the two sides of the nose. Then, they turn the knob 137 on the outside of the connecting seat 132, which drives the bidirectional screw 134, which runs horizontally through the connecting seat 132 and is rotatably connected in the slide groove 133, to rotate. Since the two sliders 135 are symmetrically screwed onto the bidirectional screw 134 and slidably connected in the slide groove 133, the two... When the screw 134 is rotated, it drives the two sliders 135 to slide towards each other along the groove 133. This causes the clamping blocks 136 on the side of the slider 135 away from the groove 133 to move closer to and clamp the two sides of the nose. The self-locking characteristic of the thread of the bidirectional screw 134 can firmly lock the clamping state of the clamping blocks 136. Conversely, when it is necessary to loosen or adjust the clamping degree, the knob 137 is turned in the opposite direction to drive the bidirectional screw 134 to rotate in the opposite direction. This causes the two sliders 135 to drive the two clamping blocks 136 to slide towards each other in the opposite direction, thereby loosening the nose and completing the adjustment or release of the clamping state.

[0028] Furthermore, silicone pads 6 are fixedly installed on both clamps 136 near the nose and on the support strip 11 near the philtrum.

[0029] During use, the silicone pad 6 on the side of the clamp 136 closest to the nose moves towards the clamp 136 and directly adheres to the skin on both sides of the nose. Meanwhile, the silicone pad 6 on the side of the support strip 11 closest to the philtrum makes contact with the skin at the philtrum as the support strip 11 adheres to the skin. Because the silicone pad 6 has soft and elastic properties, it can adapt to the different nasal contours and skin shapes of the philtrum of different patients. This not only disperses the clamping force of the clamp 136 and the pressure of the support strip 11, avoiding direct pressure on the skin by the hard structure and causing marks or damage, but also increases the contact friction between the clamp 136, the support strip 11 and the skin through the anti-slip properties of the silicone pad 6, thereby improving wearing comfort and indirectly strengthening the overall fixation stability of the facial fixation structure 1, ensuring that the device remains stable during the operation.

[0030] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A device for fixing and preventing displacement of anesthesia endotracheal tubes, characterized in that: It includes a facial fixation structure (1) for fixing to the face, a rigid support tube (3) disposed on the facial fixation structure (1) for inserting into the oral cavity to support the oral cavity, and an elastic bladder (4) fixedly connected to the inner wall of the rigid support tube (3) for tightly fitting and fixing the tracheal tube to the outer wall of the tracheal tube. The facial fixation structure (1) includes a support strip (11) that fits into the philtrum, medical adhesive tape (12) that is symmetrically fixed on both sides of the support strip (11) for bonding and fixing to the cheek, and a nose clip assembly (13) that is set on the support strip (11) for fixing to the nose. The support bar (11) is provided with an adjustment structure (5) for connecting with the rigid support cylinder (3) to adjust the position of the endotracheal tube.

2. The device for fixing and preventing displacement of endotracheal tubes for anesthesia according to claim 1, characterized in that: The adjustment structure (5) includes a recessed frame (51) slidably connected to the side of the support bar (11) away from the philtrum, a connecting shaft (52) symmetrically fixedly connected to the top and bottom of the recessed frame (51) near the support bar (11) and slidably connected to the support bar (11), a fixing bar (53) fixedly connected to the bottom of the recessed frame (51) and fixedly connected to the rigid support cylinder (3), and a locking member (54) provided on the recessed frame (51) for locking the position of the recessed frame (51).

3. The device for fixing and preventing displacement of endotracheal tubes for anesthesia according to claim 2, characterized in that: The locking element (54) includes a locking screw (541) that extends laterally through the recess (51) on the side away from the support bar (11) and is screwed onto the recess (51) to press the recess (51) against the support bar (11), and a knob (542) that is fixedly connected to the end of the locking screw (541) away from the recess (51).

4. The device for fixing and preventing displacement of endotracheal tubes for anesthesia according to claim 2, characterized in that: The support bar (11) has guide grooves (111) at the positions corresponding to the two connecting shafts (52), and the connecting shafts (52) are slidably connected in the guide grooves (111).

5. The device for fixing and preventing displacement of endotracheal tubes for anesthesia according to claim 2, characterized in that: The rigid support tube (3) is fixedly provided with an occlusal groove (31) on the outer side of the end away from the fixing strip (53) for the patient's teeth to bite and prevent slippage.

6. The device for fixing and preventing displacement of anesthesia endotracheal tubes according to claim 4, characterized in that: The nose clip assembly (13) includes a connecting strip (131) fixedly connected to the top of the support strip (11) and located on one side of the recess (51), a connecting seat (132) fixedly connected to the end of the connecting strip (131) away from the support strip (11), a groove (133) opened on the side of the connecting seat (132) away from the connecting strip (131), a bidirectional screw (134) that runs horizontally through the connecting seat (132) and is rotatably connected in the groove (133), a slider (135) that is symmetrically slidably connected in the groove (133) and screwed to the bidirectional screw (134), a clamp (136) fixedly connected to the side of the slider (135) away from the groove (133), and a knob (137) disposed on the outside of the connecting seat (132) and fixedly connected to one end of the bidirectional screw (134).

7. The device for fixing and preventing displacement of anesthesia endotracheal tubes according to claim 6, characterized in that: The connecting strip (131) is a flexible strip.

8. The device for fixing and preventing displacement of endotracheal tubes for anesthesia according to claim 6, characterized in that: Silicone pads (6) are fixedly installed on the side of the two clamps (136) near the nose and the side of the support strip (11) near the philtrum.

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