Auxiliary fixing device for clinical anesthesia intubation

Abstract

The application discloses a kind of auxiliary fixing devices for clinical anesthesia intubation, belong to medical instrument technical field, including face shield, central operating window of face shield is provided with up and down distribution nasal window and oral window, nasal window and oral window are provided with catheter locking mechanism away from the one end of face shield, the other end of catheter locking mechanism is respectively provided with nasal hole communicated with nasal window, oral hole communicated with oral window, the center position of catheter locking mechanism is provided with knob.The application integrates nasal, oral intubation channel, can be adapted to two intubation modes, without changing appliance, reduce clinical use burden;Through knob linkage cam and clamping piece, catheter is locked synchronously, easy to operate, at the same time, each function structure linkage forms safety protection, effectively avoids catheter loosening, dislocation problem, overall structure is compact, reduces oral cavity occupied space, gives consideration to fixed reliability, operation convenience and use safety.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an auxiliary fixation device for clinical anesthesia intubation. Background Technology

[0002] Endotracheal intubation involves inserting a specially designed endotracheal tube into the patient's trachea through the mouth or nose. It is the most reliable means of maintaining an open upper airway and is widely used in clinical emergency resuscitation, surgical anesthesia, and mechanical ventilation for patients with respiratory muscle paralysis. Post-intubation fixation is a key factor affecting the effectiveness and safety of intubation. Currently, the common clinical practice is to use a simple bite block combined with medical tape and duct tape, supplemented by non-elastic cloth tape when necessary, to fix the oral endotracheal tube. This traditional method has many drawbacks: poor fixation stability; the tape is easily affected by secretions and sweat, leading to tube slippage and dislocation; the bite block is also prone to loosening and falling off in edentulous patients; long-term use of the tape can cause skin allergies, pressure sores, ulcers, and infections, and changing it can also cause skin damage due to traction; the device's structure occupies operating space, hinders oral cleaning, and easily induces oral infections; the fixation and replacement process is cumbersome and time-consuming, often requiring two nurses, increasing the nursing burden; at the same time, traditional bite blocks have limited anti-occlusal effects, and when patients clench their teeth, the tube can be squeezed, causing poor ventilation or even airway obstruction.

[0003] In the existing technology, although some fixation devices have adopted mechanical locking methods to replace adhesive tape and have been equipped with modules such as removable bite blocks and suction tube fixation bases, these functional modules are independent of each other. Operators need to perform steps such as catheter locking and suction tube fixation separately, which is cumbersome. In addition, nasal intubation and oral intubation often require different fixation devices, which increases the clinical burden.

[0004] Based on this, the present invention proposes an auxiliary fixation device for clinical anesthesia intubation. Summary of the Invention

[0005] The purpose of this invention is to provide an auxiliary fixation device for clinical anesthesia intubation, which solves the problems of multiple operation steps, inconvenience of double tube fixation, and inconvenience of changing tubes via the mouth or nose in the prior art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides an auxiliary fixation device for clinical anesthesia intubation, comprising a mask, wherein the mask has a nasal window and an oral window arranged vertically at the central operating window, and a catheter locking mechanism is provided at the end of the nasal window and the oral window away from the mask, and the other end of the catheter locking mechanism is respectively provided with a nasal orifice communicating with the nasal window and an oral orifice communicating with the oral window, and a knob is provided at the center of the catheter locking mechanism; The conduit locking mechanism includes a mounting box, a mounting plate on the top of the mounting box, and a rotating shaft at the center of the mounting plate. One end of the rotating shaft extends through the mounting plate and is attached to the knob. The other end of the rotating shaft is provided with a cam. The cam is a constant-diameter cam, and telescopic ejection structures are symmetrically arranged on both sides of the cam. The telescopic end of the telescopic ejection structure is provided with a movable clamping member. Fixed clamping members matching the movable clamping member are symmetrically arranged on both sides inside the mounting box.

[0007] Compared with the prior art, the beneficial technical effects of the present invention are as follows: This invention is an auxiliary fixation device for clinical anesthesia intubation that integrates nasal and oral intubation channels, adaptable to both intubation methods, eliminating the need to change instruments and reducing the burden of clinical use. The device achieves synchronous locking of the catheter through a knob-linked cam and clamping mechanism, making operation simple. At the same time, the interconnected functional structures form a safety protection, effectively preventing catheter loosening and dislocation. The overall structure is compact, reducing the space occupied in the oral cavity, and balancing fixation reliability, ease of operation, and safety of use. Attached Figure Description

[0008] The present invention will be further described below with reference to the accompanying drawings.

[0009] Figure 1 This is a front view of the auxiliary fixation device for clinical anesthesia intubation of the present invention; Figure 2 This is a diagram showing the internal structure of the auxiliary fixation device for clinical anesthesia intubation according to the present invention. Figure 3 This is a cross-sectional view of the anti-biting module; Figure 4 A bottom view of the conduit locking mechanism; Figure 5 This is a partial front view of the catheter locking mechanism; Figure 6 This is a structural diagram of the locking state of the catheter locking mechanism; Figure 7 This is a partial structural diagram of the catheter locking mechanism; Figure 8 This is a diagram showing the state of the nasal tube being clamped. Explanation of reference numerals in the attached diagram: 1. Mask; 2. Nasal window; 3. Oral window; 4. Tube locking mechanism; 5. Nasal nostril; 6. Nasal tube; 7. Knob; 8. Oral hole; 9. Oral tube; 10. Strap; 11. Anti-biting module; 101. Upper hole; 102. Lower hole; 103. Clamping claw; 401. Mounting plate; 402. Rotating shaft; 403. Cam; 404. Top wheel; 405. U-shaped groove block; 406. Top rod; 407. Spring; 408. Limiting plate; 409. Movable clamping component; 410. Fixed clamping component; 1101, skeleton; 1102, soft silicone layer; 1103, card slot. Detailed Implementation

[0010] like Figure 1-8 As shown, an auxiliary fixation device for clinical anesthesia intubation includes a mask 1. A nasal window 2 and an oral window 3 are installed vertically at the central operating window of the mask 1. A catheter locking mechanism 4 is installed at the end of the nasal window 2 and the oral window 3 furthest from the mask 1. The other end of the catheter locking mechanism 4 is respectively equipped with a nasal orifice 5 communicating with the nasal window 2 and an oral orifice 8 communicating with the oral window 3. A knob 7 is installed at the center of the catheter locking mechanism 4. This device is compatible with both nasal and oral endotracheal intubation methods. The catheter is quickly fixed by operating the catheter locking mechanism 4 with the knob 7, simplifying the operation process, eliminating the need to change instruments, and improving clinical convenience and fixation reliability.

[0011] The conduit locking mechanism 4 includes a mounting box, on the top of which is a mounting plate 401. A rotating shaft 402 is mounted at the center of the mounting plate 401. One end of the rotating shaft 402 extends through the mounting plate 401 and is mounted to the knob 7. A cam 403 is mounted at the other end of the rotating shaft 402. The cam 403 is a constant diameter cam. Telescopic ejection structures are symmetrically mounted on both sides of the cam 403. A movable clamping member 409 is mounted on the telescopic end of the telescopic ejection structure. Fixed clamping members 410 that match the movable clamping member 409 are symmetrically mounted on both sides inside the mounting box. Rotating knob 7 causes the rotating shaft 402 and the equal-diameter cam 403 to rotate synchronously. Cam 403 pushes the telescopic ejector structures on both sides to extend outward, driving the movable clamping member 409 to move closer to the fixed clamping member 410. The two work together to clamp the endotracheal tube and complete the locking. Rotating knob 7 in the opposite direction resets cam 403, retracts the telescopic ejector structure, and separates the movable clamping member 409 from the fixed clamping member 410, thus releasing the tube.

[0012] The telescopic ejection structure includes a top wheel 404 that contacts the cam 403. The top wheel 404 is rotatably mounted in a U-shaped groove 405. A top rod 406 is mounted on one end of the U-shaped groove 405 away from the top wheel 404. The two ends of the mounting plate 401 are symmetrically and integrally formed with limit plates 408. The top rod 406 slidably passes through the limit plate 408 and is mounted together with the movable clamping member 409. A spring 407 is sleeved on the top rod 406. One end of the spring 407 abuts against the U-shaped groove 405, and the other end abuts against the limit plate 408. Specifically, rotating knob 7 drives the rotating shaft 402 and the equal-diameter cam to rotate. Cam 403 presses the top wheels 404 on both sides, pushing the U-shaped groove block 405 and the top rod 406 to slide along the limiting plate 408, compressing the spring 407, so that the movable clamping member 409 moves closer to the fixed clamping member 410 and clamps the guide tube. Rotating knob 7 in the opposite direction releases the compression of cam 403, and spring 407 returns to its original position, driving the top rod 406 and the movable clamping member 409 to retract, releasing the guide tube.

[0013] Both the movable clamping member 409 and the fixed clamping member 410 have arc-shaped grooves on their opposing surfaces, which can fit the outer surface of the endotracheal tube, increase the contact area, improve clamping stability, and at the same time avoid damage to the tube by squeezing with hard structures.

[0014] The mask 1 has an upper hole 101 and a lower hole 102. The upper hole 101 communicates with the nasal window 2, and the lower hole 102 communicates with the oral window 3 to ensure smooth intubation. An anti-biting module 11 is detachably installed on the outer periphery of the lower hole 102 to prevent the patient's teeth from biting and squeezing the tube, thus preventing airway obstruction. It is also flexible to install and remove, adapting to clinical use needs.

[0015] The anti-biting module 11 includes a frame 1101, which is a variable-diameter tube structure. A soft silicone layer 1102 is installed on the outer periphery of the frame 1101 away from the mask 1. The variable-diameter tubular frame 1101 serves as the main support body, and the outer side is covered with the soft silicone layer 1102. This not only reliably blocks the dental occlusal canal and avoids airflow obstruction, but also improves oral contact comfort and reduces tissue abrasion. A slot 1103 is installed at the end of the frame 1101 near the mask 1. Several claws 103 are integrally formed on the inner sidewall of the mask 1, which cooperate with the slot 1103. The anti-biting module 11 can be quickly installed and removed by engaging the slot 1103 with the claws 103 on the mask 1, making it flexible and convenient to use.

[0016] The mask 1 has a detachable strap 10 attached to its outer wall, which can securely fix the device to the patient's head. The inner side of the strap 10 is provided with an anti-slip silicone strip, and the back of the strap is provided with a memory foam pad. Specifically, the anti-slip silicone strip on the inner side of the strap 10 can prevent slippage, and the memory foam pad at the back of the strap can cushion and reduce pressure, improve wearing comfort, and at the same time avoid pressure sores on the skin.

[0017] The inner wall of the mask 1 is provided with a removable facial contact layer. This facial contact layer is a zoned hardness silicone layer, comprising at least a first hardness zone corresponding to the cheekbone and nasal alae, a second hardness zone corresponding to the infraorbital region and upper lip, and a third hardness zone corresponding to the jawline and cheek. The silicone hardness of the first hardness zone is SHA20±5, the second hardness zone is SHA30±5, and the third hardness zone is SHA40±5. This conforms to the facial contours, distributes pressure, and reduces pressure sores. The surface of the facial contact layer is distributed with micro-conical protrusions to enhance breathability and slip resistance. Furthermore, silver ion antibacterial agents are added to the silicone to inhibit bacterial growth, reduce the risk of infection, and the contact layer is removable for easy cleaning and replacement.

[0018] The nasal cannula 6 passes sequentially through the nasal cavity 5, the through hole between the movable clamping member 409 and the fixed clamping member 410 on the corresponding side, the nasal window 2, and the upper hole 101 before being inserted into the nasal cavity. The oral cannula 9 passes sequentially through the oral hole 8, the through hole between the movable clamping member 409 and the fixed clamping member 410 on the corresponding side, the oral window 3, the lower hole 102, and the anti-biting module 11 before being inserted into the oral cavity. It is compatible with both nasal and oral cannulation modes without interference, ensuring smooth cannulation and safe use.

[0019] The working process of this invention is as follows: First, preparations for device wearing are made. Medical staff install the detachable strap 10 on the outer wall of the mask 1. After the device is worn and fixed, the catheter is inserted via nasal or oral intubation according to clinical needs. If nasal intubation is performed, the nasal tube 6 is inserted through the nasal opening 5, the through hole between the movable clamp 409 and the fixed clamp 410 on the inner side of the catheter locking mechanism 4, the nasal window 2, and the upper hole 101 on the mask 1, and finally smoothly inserted into the patient's nostril. If oral intubation is performed, the anti-biting module 11 is quickly assembled by first engaging the claw 103 on the inner wall of the mask 1 with the slot 1103 of the anti-biting module 11. Then, the oral tube 9 is inserted through the oral opening 8, the through hole between the corresponding clamps, the oral window 3, the lower hole 102 of the mask 1, and the internal channel of the anti-biting module 11, and smoothly inserted into the patient's oral cavity. The two intubation paths are independent and do not interfere with each other, which can adapt to different clinical intubation needs. After the catheter is inserted and adjusted to the appropriate insertion depth, the catheter locking mechanism 4 is activated to fix the catheter: the medical staff rotates the knob 7 in the center of the catheter locking mechanism 4, the knob 7 drives the rotating shaft 402 on the mounting plate 401 to rotate synchronously, and then drives the equal diameter cam 403 at the bottom of the rotating shaft to rotate; during the rotation of the cam 403, it squeezes the top wheel 404 symmetrically distributed on both sides. While the top wheel 404 rotates with the cam profile, it pushes the U-shaped groove block 405 and the top rod 406 to slide along the limiting plate 408 in a directional manner, and synchronously compresses the spring 407 sleeved on the top rod 406; during the sliding of the top rod 406, it drives the movable clamping part 409 at the end to move closer to the fixed clamping part 410 inside the mounting box, so as to achieve stable locking and fixation of the nasal tube 6 or the oral tube 9; After the surgery or treatment, the device is disassembled and reset: Rotate the knob 7 in the opposite direction to reset the shaft 402 and cam 403, release the cam from the pressure limit on the top wheel 404, and the compressed spring 407 will return to its original position, pushing the U-shaped groove block 405 and the top rod 406 to slide in the opposite direction, causing the movable clamping part 409 to move away from the fixed clamping part 410, and releasing the locked endotracheal tube; then smoothly pull out the nasal tube 6 or the oral tube 9, then remove the head strap 10 and take off the mask 1.

[0020] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. An auxiliary fixation device for clinical anesthesia intubation, characterized in that: The device includes a face mask, which has a nasal window and an oral window arranged vertically at the central operating window. A catheter locking mechanism is provided at the end of the nasal window and the oral window away from the face mask. The other end of the catheter locking mechanism is provided with a nasal orifice communicating with the nasal window and an oral orifice communicating with the oral window. A knob is provided at the center of the catheter locking mechanism. The conduit locking mechanism includes a mounting box, a mounting plate on the top of the mounting box, and a rotating shaft at the center of the mounting plate. One end of the rotating shaft extends through the mounting plate and is attached to the knob. The other end of the rotating shaft is provided with a cam. The cam is a constant-diameter cam, and telescopic ejection structures are symmetrically arranged on both sides of the cam. The telescopic end of the telescopic ejection structure is provided with a movable clamping member. Fixed clamping members matching the movable clamping member are symmetrically arranged on both sides inside the mounting box.

2. The auxiliary fixation device for clinical anesthesia intubation according to claim 1, characterized in that: The telescopic ejection structure includes a top wheel that contacts the cam. The top wheel is rotatably disposed within a U-shaped groove. A top rod is disposed at one end of the U-shaped groove away from the top wheel. Limiting plates are integrally formed symmetrically at both ends of the mounting plate. The top rod slidably passes through the limiting plates and is disposed together with the movable clamping member. A spring is sleeved on the top rod. One end of the spring abuts against the U-shaped groove, and the other end abuts against the limiting plate.

3. The auxiliary fixation device for clinical anesthesia intubation according to claim 1, characterized in that: Both the movable clamping member and the fixed clamping member have arc-shaped grooves on their opposing surfaces.

4. The auxiliary fixation device for clinical anesthesia intubation according to claim 1, characterized in that: The mask has an upper hole and a lower hole. The upper hole communicates with the nasal window, and the lower hole communicates with the oral window.

5. The auxiliary fixation device for clinical anesthesia intubation according to claim 4, characterized in that: The lower hole is detachably equipped with an anti-biting module on its outer periphery.

6. The auxiliary fixation device for clinical anesthesia intubation according to claim 5, characterized in that: The anti-biting module includes a frame, which is a variable diameter tube structure. A soft silicone layer is provided on the outer periphery of the frame away from the mask. A slot is provided at the end of the frame near the mask. Several claws that cooperate with the slot are integrally formed on the inner sidewall of the mask.

7. The auxiliary fixation device for clinical anesthesia intubation according to claim 1, characterized in that: The outer wall of the mask 1 is detachably equipped with straps.

8. The auxiliary fixation device for clinical anesthesia intubation according to claim 1, characterized in that: The inner wall of the mask 1 is provided with a removable facial contact layer, which is a zoned hardness silicone layer. It includes at least a first hardness zone corresponding to the cheekbone and the side of the nose, a second hardness zone corresponding to the infraorbital region and the upper lip, and a third hardness zone corresponding to the mandibular margin and the cheek. The silicone hardness of the first hardness zone is SHA20±5, the silicone hardness of the second hardness zone is SHA30±5, and the silicone hardness of the third hardness zone is SHA40±5. The surface of the facial contact layer is distributed with micro-conical protrusions, and silver ion antibacterial agent is added to the silicone.

9. The auxiliary fixation device for clinical anesthesia intubation according to claim 7, characterized in that: The inner side of the strap is provided with an anti-slip silicone strip, and the back of the head is provided with a memory foam pad.

10. The auxiliary fixation device for clinical anesthesia intubation according to claim 5, characterized in that: The nasal tube passes sequentially through the nasal cavity, the through hole between the movable clamping member and the fixed clamping member on the corresponding side, the nasal window, and the upper hole before being inserted into the nasal cavity; the oral tube passes sequentially through the oral hole, the through hole between the movable clamping member and the fixed clamping member on the corresponding side, the oral window, the lower hole, and the anti-biting module before being inserted into the oral cavity.

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