Oral cannula fixation device

Abstract

The application discloses a mouth-inserted tube fixing device, and relates to the technical field of medical equipment, which comprises a base, an open slot for penetrating a tube is formed in the base, an elastic piece for clamping the tube is arranged in the open slot, adjusting mechanisms for different tube diameters are arranged on the two sides of the elastic piece, and a tightening mechanism according to different patient head specifications is further arranged on the base; wherein the adjusting mechanism comprises sliding blocks sliding on the inner wall of the open slot, bidirectional threaded rods are threadedly connected to the symmetrically-arranged sliding blocks, one end of the bidirectional threaded rod is rotationally matched with the base, the other end of the bidirectional threaded rod penetrates through the base and is fixedly connected with an adjusting nut, and a positioning tube is clamped between the symmetrically-arranged sliding blocks. The application has the effects of effectively fixing tubes with different diameters, being suitable for the head sizes of different patients, improving comfort and safety, and being convenient to operate.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to an intraoral cannula fixation device. Background Technology

[0002] Currently, endotracheal intubation is a commonly used emergency measure in clinical medicine, especially in intensive care and surgery. However, because patients may frequently move their heads or bodies during treatment, the endotracheal tube is prone to displacement or even dislodgement, causing great inconvenience to medical staff and increasing the patient's pain and risks.

[0003] To effectively secure the intraoral cannula, common methods include direct fixation with adhesive tape, traditional bandage binding, and auxiliary fixation with a base featuring a specific clamping structure. These methods typically rely on simple physical constraints to limit the cannula's position, such as applying pressure to maintain stability by wrapping adhesive tape around the facial skin or knotting a bandage around the head; or using clamps to create friction between the clamp and the cannula's outer wall to achieve fixation.

[0004] However, the traditional methods mentioned above have obvious shortcomings, mainly in that they cannot simultaneously accommodate multiple cannulas of different diameters and are difficult to flexibly adapt to the specific differences in the head shape of various patients. This may lead to problems such as fixation failure or local compression caused by improper matching during actual application. Utility Model Content

[0005] In order to improve the problem that oral intubation cannula fixation devices are difficult to adjust precisely to accommodate various cannulas of different diameters and individual head circumferences, which can easily lead to fixation failure or local compression, this application provides an oral intubation cannula fixation device.

[0006] The intraoral cannula fixing device provided in this application adopts the following technical solution:

[0007] An intraoral cannula fixation device includes a base with an opening groove for inserting a cannula. An elastic element for clamping the cannula is disposed within the opening groove. Adjustment mechanisms for different cannula diameters are disposed on both sides of the elastic element. The base also includes a tightening mechanism for different patient head sizes. The adjustment mechanism includes sliding blocks that slide on the inner wall of the opening groove. Symmetrically arranged sliding blocks are threaded with bidirectional threaded rods. One end of the bidirectional threaded rod is rotatably engaged with the base, and the other end of the bidirectional threaded rod extends out of the base and is fixedly connected to an adjusting nut.

[0008] By adopting the above technical solution, the cannula fixing device can effectively clamp and securely fix cannulas of different diameters. The slot on the base, in conjunction with the elastic element, allows the cannula to be stably clamped in the appropriate position. The sliding block and the double-threaded rod in the adjustment mechanism allow for flexible adjustment of the position of the elastic element within the slot according to actual needs, thus adapting to the requirements of various cannula sizes. Furthermore, the adjusting nut at one end of the double-threaded rod facilitates quick and precise diameter adjustment by the operator, improving ease of use and applicability.

[0009] Optionally, the elasticity includes a positioning tube with a tubular structure, and a plurality of elastic hooks are fixedly inclined around the inner wall of the positioning tube. The plurality of elastic hooks and the positioning tube are arranged at an acute angle, and the positioning tube is engaged between symmetrically arranged sliding blocks.

[0010] By adopting the above technical solution, the intraoral cannula fixation device effectively clamps and fixes cannulas of different diameters, while possessing good adaptability and adjustability. The tubular structure of the positioning tube allows it to fit tightly with the sliding block, ensuring the cannula is fixed within the positioning tube. The inclined fixation of the elastic hook allows it to generate appropriate elastic deformation when the cannula is inserted, providing uniform clamping force and preventing the cannula from shifting or falling off due to uneven force. The acute angle arrangement between the elastic hook and the positioning tube enhances the clamping effect, facilitates cannula installation, improves the reliability of cannula fixation, simplifies the operation process, and allows medical staff to quickly adjust and use it, thereby improving medical efficiency and safety.

[0011] Optionally, the tightening mechanism includes tightening bands installed at both ends of the base, with adjacent tightening bands connected by adhesive. The tightening band is divided into an elastic section and a rigid section. The elastic section is located at one end of the tightening band closer to the base, and the rigid section is installed at the end of the elastic section away from the tightening band.

[0012] By adopting the above technical solution, the intraoral cannula fixation device can flexibly adapt to different patient head sizes. The elastic section allows the tightening band to adapt to different head sizes, increasing wearing comfort; the rigid section ensures the stability of the fixation and prevents loosening or falling off due to excessive stretching; the tightening band is simple and reliable to connect by adhesive, and is easy to adjust and use quickly.

[0013] Optionally, a suction port is provided on the base, and the cross-section of the suction port is arranged in a quincunx shape.

[0014] By adopting the above technical solution, the suction port on the base facilitates sputum suction operations for medical staff, reducing the inconvenience and risks caused by frequent removal of the intubation tube; at the same time, the cross-section of the suction port is set in a quincunx shape, which can effectively prevent interference between the suction tube and the intubation tube during the suction process, ensuring the smooth progress of the suction process.

[0015] Optionally, the elastic hook has a bending portion and a rod portion, the rod portion is fixed to the inner wall of the positioning tube, the bending portion is fixed to the end of the rod portion away from the positioning tube, and a ball is also rolled on the bending portion.

[0016] By adopting the above technical solution, the cannula fixing device achieves a more stable and reliable cannula fixing effect. The bending part increases the contact area between the elastic hook and the cannula, thereby improving the clamping force and preventing the cannula from loosening or shifting during use. The rod part enhances the overall strength of the elastic hook, ensuring its durability during long-term use. The ball bearing on the bending part reduces the frictional resistance between the cannula surface and the elastic hook during installation, making the operation smoother when adjusting the cannula position, while reducing the wear and damage that may be caused to the outer wall of the cannula.

[0017] Optionally, the rigid segment has a bifurcated structure, and a male end connecting strip and a female end connecting strip adhered to the male end connecting strip are provided on the rigid segment.

[0018] By adopting the above technical solution, the bifurcated structure of the rigid section better adapts to the head shapes of different patients, improving wearing comfort and stability. The combined use of the male and female connecting strips allows the tightening strap to be adjusted according to the actual needs of the patient's head, ensuring that the fixation device is firmly and reliably fixed to the patient's head and avoiding safety risks caused by accidental dislodgement.

[0019] Optionally, the inner surface of the tightening band is provided with a skin-friendly layer, and the outer surface of the tightening band is provided with a rough layer.

[0020] By adopting the above technical solutions, patient comfort can be effectively improved. The skin-friendly layer makes the bandage softer when in contact with the skin, reducing the risk of friction and pressure sores; the rough layer increases the friction on the outside of the bandage, preventing slippage and fixation failure, thereby ensuring the stability and reliability of the intraoral cannula fixation.

[0021] Optionally, the length ratio of the hard segment to the elastic segment is 2 to 3:1.

[0022] By adopting the above technical solutions, the tightening band is ensured to have sufficient rigidity to maintain its shape, as well as a certain degree of elasticity and comfort, making it easy to adapt to different patients' head sizes. At the same time, the fixation device is more stable and reliable during use, reducing discomfort caused by the tightening band being too long or too stiff, and improving the comfort and safety of patients when wearing it.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By setting an adjustment mechanism consisting of a bidirectional threaded rod and a sliding block, the position of the elastic element can be flexibly adjusted according to the different diameters of the insertion tube, ensuring that the clamping force is moderate and effectively solving the problem of incompatibility with multiple diameter insertion tubes;

[0025] 2. The fastening mechanism on the base combines elastic and rigid sections, and can be adjusted according to the specific size of the patient's head, reducing the local pressure or discomfort that may be caused by traditional fixation methods;

[0026] 3. The multiple elastic hooks inside the elastic element cooperate with the positioning tube to reduce damage to the surface of the insertion tube while clamping it, thereby improving the stability and reliability of fixation, improving patient comfort and reducing the risk of complications. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure shown in this application.

[0029] Figure 2 This is a cross-sectional view showing the overall structure of this application.

[0030] Figure 3 This is a structural schematic diagram illustrating the interconnected state of adjacent tightening bands in this application.

[0031] Figure 4 This is an internal structural view of the elastic element shown in this application.

[0032] Reference numerals: 1. Base; 2. Opening groove; 3. Elastic element; 4. Adjustment mechanism; 5. Tightening mechanism; 41. Sliding block; 42. Bidirectional threaded rod; 43. Adjusting nut; 31. Positioning tube; 32. Elastic hook; 51. Tightening band; 511. Elastic section; 512. Rigid section; 6. Suction port; 321. Bending part; 322. Rod body; 323. Rolling ball; 5121. Male end connecting strip; 5122. Female end connecting strip. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1 - Appendix Figure 4 This application will be described in further detail.

[0034] Example 1

[0035] The intraoral cannula fixation device provided in this application includes a base 1, an elastic element 3, an adjustment mechanism 4, and a tightening mechanism 5. The base 1 has an opening groove 2 for inserting the cannula, and the elastic element 3 is installed within the opening groove 2 to clamp the cannula. Adjustment mechanisms 4 for different cannula diameters are provided on both sides of the elastic element 3. The base 1 also has a tightening mechanism 5 to accommodate different patient head sizes, thus achieving effective adaptation to different cannula sizes and head shapes.

[0036] The adjustment mechanism 4 includes a sliding block 41 that slides on the inner wall of the opening groove 2. The symmetrically arranged sliding blocks 41 are threaded with a bidirectional threaded rod 42. One end of the bidirectional threaded rod 42 is rotatably engaged with the base 1, and the other end extends to the outside of the base 1 and is fixedly connected to an adjustment nut 43. The user only needs to rotate the adjustment nut 43 to synchronously control the two sliding blocks 41 to move towards each other or away from each other, thereby achieving fine adjustment of the insertion position.

[0037] The elastic element 3 consists of a positioning tube 31 and multiple elastic hooks 32 fixed inside it. The positioning tube 31 is made of flexible medical-grade silicone rubber, which has good elasticity and fatigue resistance. Several elastic hooks 32 are evenly distributed on the inner circumferential surface of the positioning tube 31. Each elastic hook 32 has a certain tilt angle, allowing it to tightly grip the surface of the inserted cannula, enhancing gripping force and avoiding the risk of scratching the cannula. Alternatively, in addition to the elastic hooks 32, a ring-shaped airbag can be used, which inflates to achieve the same clamping effect.

[0038] The fastening mechanism 5 includes two fastening straps 51 installed at both ends of the base 1. These two fastening straps 51 are connected by Velcro for quick installation and removal. Each fastening strap 51 consists of an elastic section 511 (e.g., knitted spandex material) with a softer, more deformable front end that conforms to the body's curves, and a rigid section 512 (e.g., PP plastic plate) with a harder end that is less prone to twisting or folding and affecting the appearance. This makes the strap more secure and prevents it from easily falling off while also meeting aesthetic requirements. In addition, the rigid section 512 has a forked structure, with a male end connecting strip 5121 and a female end connecting strip 5122 bonded to the male end connecting strip 5121 to ensure a firm and reliable connection. Meanwhile, the inner surface of the fastening strap 51 is provided with a skin-friendly layer (e.g., short-fiber polypropylene fabric, not shown in the attached figure), and the outer surface is provided with a rough layer (e.g., nylon filament woven mesh texture pattern, not shown in the attached figure) to enhance durability and comfort.

[0039] The length ratio of the rigid section 512 to the elastic section 511 is 2~3:1. The tightening band 51 has sufficient rigidity to maintain its shape, as well as a certain degree of elasticity and comfort, making it easy to adapt to different patients' head sizes. At the same time, the fixation device is more stable and reliable during use, reducing discomfort caused by the tightening band 51 being too long or too hard, and improving the comfort and safety of patients when wearing it.

[0040] The implementation principle of the oral intubation fixation device in this application embodiment is as follows: The oral intubation fixation device solves the problem of the single limitation of traditional fixation methods and greatly improves the ease of operation. The adjustment mechanism 4 can easily meet the actual needs in various complex environments. It can flexibly adjust the position of the elastic element 3 according to the different diameters of the intubation tube to ensure that the clamping force is moderate and effectively solve the problem of incompatibility with multiple diameter intubation tubes. The rigid section 512 and the elastic section 511 work together to adjust in time according to the size of the patient's head, reducing the occurrence of local pressure or discomfort that may be caused by traditional fixation methods. The multiple elastic hooks 32 inside the elastic element 3 cooperate with the positioning tube 31 to reduce damage to the surface of the intubation tube while clamping the intubation tube, improve the stability and reliability of fixation, thereby improving the patient's comfort and reducing the risk of complications.

[0041] Example 2

[0042] Compared to the first implementation scheme described above, a suction port 6 module is added. The suction port 6 is located on one side of the opening slot 2 on the base 1. Its cross-sectional profile adopts a special plum blossom shape or other conventional geometric pattern, which has higher strength properties and can withstand greater external tensile forces without easily breaking or being damaged. On the one hand, the suction port 6 facilitates the suctioning operation for medical staff, reducing the inconvenience and risks caused by frequent removal of the intubation tube; on the other hand, it prevents interference between the suction tube and the intubation tube during the suctioning process, ensuring the smooth progress of the suctioning process.

[0043] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for fixing an intraoral cannula, characterized in that: Includes a base (1), on which an opening groove (2) for inserting a cannula is provided, and an elastic element (3) for clamping the cannula is provided in the opening groove (2). Adjustment mechanisms (4) for different cannula diameters are provided on both sides of the elastic element (3). The base (1) is also provided with a tightening mechanism (5) according to different patient head sizes. The adjustment mechanism (4) includes a sliding block (41) that slides on the inner wall of the opening groove (2). The sliding block (41) is symmetrically arranged and threaded with a bidirectional threaded rod (42). One end of the bidirectional threaded rod (42) is rotatably engaged with the base (1), and the other end of the bidirectional threaded rod (42) passes through the base (1) and is fixedly connected with an adjustment nut (43).

2. The intraoral cannula fixing device according to claim 1, characterized in that: The elasticity includes a positioning tube (31) with a tubular structure. Several elastic hooks (32) are fixed obliquely around the inner wall of the positioning tube (31). The elastic hooks (32) and the positioning tube (31) are arranged at an acute angle. The positioning tube (31) is engaged between symmetrically arranged sliding blocks (41).

3. The intraoral cannula fixing device according to claim 1, characterized in that: The tightening mechanism (5) includes tightening bands (51) installed at both ends of the base (1). Adjacent tightening bands (51) are connected by adhesive. The tightening band (51) is divided into an elastic section (511) and a rigid section (512). The elastic section (511) is located at one end of the tightening band (51) close to the base (1), and the rigid section (512) is installed at the end of the elastic section (511) away from the tightening band (51).

4. The intraoral cannula fixing device according to claim 1, characterized in that: The base (1) has a suction port (6) with a cross-section in the shape of a plum blossom.

5. The intraoral cannula fixing device according to claim 2, characterized in that: The elastic hook (32) has a bending part (321) and a rod part (322). The rod part (322) is fixed on the inner wall of the positioning tube (31). The bending part (321) is fixed on the end of the rod part (322) away from the positioning tube (31). A ball (323) is also rolled on the bending part (321).

6. The intraoral cannula fixing device according to claim 3, characterized in that: The rigid segment (512) has a bifurcated structure, and a male end connecting strip (5121) and a female end connecting strip (5122) bonded to the male end connecting strip (5121) are provided on the rigid segment (512).

7. The intraoral cannula fixing device according to claim 3, characterized in that: The inner surface of the tightening band (51) is provided with a skin-friendly layer, and the outer surface of the tightening band (51) is provided with a rough layer.

8. The intraoral cannula fixing device according to claim 3, characterized in that: The length ratio of the hard segment (512) to the elastic segment (511) is 2~3:1.

Images