Cricoid cartilage pressing device and method of use thereof

Abstract

The present invention discloses a cricoid cartilage pressing device and a method for using the same. The cricoid cartilage pressing device comprises a bracket, an angle adjustment component, a telescopic adjustment component, and a pressing portion. The bracket is rotatably connected to the angle adjustment component, one end of the telescopic adjustment component is fixedly connected to the angle adjustment component, and the other end is fixedly connected to the pressing portion. Adjusting the angle adjustment component drives the telescopic adjustment component and the pressing portion to rotate in turn, so as to adjust the angle of the pressing portion in a direction parallel to the cricoid cartilage so that the pressing portion faces the cricoid cartilage. Adjusting the telescopic adjustment component adjusts the extension and contraction of the pressing portion in a direction perpendicular to the cricoid cartilage to control the pressing force of the pressing portion on the cricoid cartilage. The present pressing device achieves continuous, stable, and precise pressing of the cricoid cartilage by adjusting the direction and force of the pressing portion, thereby avoiding unstable effects caused by operator fatigue or unskilled operation.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to a cricoid cartilage pressing device and a method of using the same. Background Art

[0002] General anesthesia plays a vital role in modern medicine, ensuring patients experience no pain or discomfort during surgery and providing a stable operating environment. Intraoperative endotracheal intubation is a crucial medical procedure. When a patient is unable to breathe on their own or has difficulty breathing, a special tube is inserted into the trachea to create a passageway to the outside world and maintain a patent airway. This passageway allows for gas exchange, delivers oxygen to the lungs, and helps remove carbon dioxide. Intubation is crucial during emergency rescue, major surgery, or intensive care.

[0003] However, due to the particularity of the patient's anatomical structure or pathological condition, tracheal intubation can sometimes become difficult and may seriously threaten the patient's life safety. In this case, doctors usually use a technique called "Sellick maneuver". The core of the "Sellick maneuver" is to press the patient's cricoid cartilage (C-shaped cartilage located below the Adam's apple, close to the laryngeal entrance) with fingers during tracheal intubation to help achieve the following purposes: (1) Improve the field of view. When performing tracheal intubation, the doctor needs to clearly see the location of the tracheal entrance to correctly place the tube. By pressing the cricoid cartilage, the sinking of the laryngeal soft tissue can be reduced, and the position of the vocal cords and tracheal entrance can be raised, closer to the field of view of the laryngoscope, thereby helping the doctor to identify the tracheal entrance more clearly. (2) Prevent reflux of gastric contents. When pressing the cricoid cartilage, the esophageal entrance is closed by applying pressure, effectively preventing gastric contents from overflowing and refluxing into the trachea due to pressure changes or body position adjustments during intubation. If gastric contents enter the trachea, it will not only increase the risk of lung infection, but also may interfere with the field of view and increase the difficulty of intubation. (3) Reduce the risk of aspiration. Sealing the esophageal entrance reduces the risk of aspiration of liquid or solid matter into the lungs, making the intubation process safer.

[0004] Although the "Sellick operation" has obvious advantages, in actual application, doctors also face some challenges when pressing the cricoid cartilage with their fingers: (1) It is difficult to accurately control the pressing position and force. Accurately controlling the pressing position and force requires high technical skills from doctors. Excessive pressure will cause discomfort to the patient, which may induce coughing, vomiting and other reactions, further increasing the difficulty of intubation; while too little pressure will not be able to effectively close the esophageal entrance, increasing the risk of aspiration; at the same time, long-term operation will inevitably cause finger soreness, affecting the quality of operation, and even causing problems such as esophageal displacement or limited visualization. (2) It lasts for a long time and requires a lot of manpower. Continuous and stable pressing usually requires at least two doctors to work together, one doctor is responsible for pressing the cricoid cartilage, and the other doctor performs the intubation operation. Although doctors have been specially trained and proficient in the "Sellick operation", it is difficult to maintain stable and effective pressure for a long time during the operation. It is more difficult when operated by one person, which can easily lead to unstable pressure and affect the intubation effect. (3) The patient's body position is limited. Currently, the "Sellick maneuver" is only applicable to the supine position. When the patient's body position changes (such as sitting, prone, side-lying, etc.), it is difficult to achieve effective compression.

[0005] Based on the above problems, researchers are actively developing a new cricoid cartilage pressing device to reduce manpower requirements, accurately control the pressing position and force, thereby improving the success rate of intubation operations and enhancing the safety of anesthesia. Summary of the Invention

[0006] The purpose of the present invention is to provide a novel cricoid cartilage pressing device and its use method to solve the problems existing in the "Sellick operation", such as difficulty in accurately controlling the pressing position and force, large manpower requirements and limited patient position.

[0007] In order to achieve the above-mentioned object, the present invention provides a cricoid cartilage pressing device, comprising a bracket, an angle adjustment component, a telescopic adjustment component, and a pressing portion;

[0008] The bracket is rotatably connected to the angle adjustment assembly, one end of the telescopic adjustment assembly is fixedly connected to the angle adjustment assembly, and the other end is fixedly connected to the pressing portion;

[0009] Adjusting the angle adjustment component to sequentially drive the telescopic adjustment component and the pressing portion to rotate, so as to adjust the angle of the pressing portion in a direction parallel to the cricoid cartilage so that the pressing portion faces the cricoid cartilage;

[0010] The telescopic adjustment component is adjusted to adjust the pressing portion to telescope in a direction perpendicular to the cricoid cartilage, so as to control the pressing force of the pressing portion on the cricoid cartilage.

[0011] Optionally, the angle adjustment assembly comprises a base, a polygonal segment washer and a butterfly nut;

[0012] Base shafts are respectively installed on both sides of the base, one end of each base shaft is fixedly connected to the base, and the other end is provided with a polygonal segment;

[0013] The polygonal gasket is sleeved on the polygonal segment, and an arc groove is provided on the outer edge of the polygonal gasket.

[0014] Optionally, the bracket includes two symmetrical bracket members, each of the bracket members is correspondingly sleeved on each of the base shafts and is located between the polygonal gasket and the side of the base. A screw is provided on the side of the bracket member away from the base shaft, and the screw passes through the arc groove on the polygonal gasket and is engaged with the butterfly nut.

[0015] Optionally, the angle adjustment assembly further includes a first auxiliary gasket, a second auxiliary gasket and a second bolt, the first auxiliary gasket is sleeved on each of the base shafts and is located between the bracket member and the side of the base, the second auxiliary gasket is tightly attached to the outer side of the polygonal gasket, and the second bolt passes through the second auxiliary gasket and is engaged with the polygonal segment.

[0016] Optionally, the telescopic adjustment assembly includes a push rod, a sleeve and an adjustment knob;

[0017] One end of the push rod is embedded in the center of the base, and the other end is connected to the pressing part; a rack is also provided on the outer side of the push rod;

[0018] The sleeve is sleeved on the outer surface of the push rod, and the adjusting knob is connected to the sleeve.

[0019] Optionally, the inner surface of the adjusting knob is provided with an internal thread and an inner convex ring, the inner surface of the sleeve is provided with a positioning groove, the surface of the sleeve in contact with the adjusting knob is provided with an annular groove, the rack is embedded and fixed in the positioning groove, the rack is matched and engaged with the internal thread; the inner convex ring is matched and engaged with the annular groove.

[0020] Optionally, the end portion of the other end of the push rod is connected to the pressing portion by screw connection or rivet connection; a pressure sensor is also provided at the connection between the end portion of the other end of the push rod and the pressing portion.

[0021] Optionally, adjustment brackets are symmetrically provided at both ends of the pressing portion, and a top screw is passed through the center position of each adjustment bracket. The top screw supports the pressing portion, and the curvature of the pressing portion can be adjusted by rotating the top screw.

[0022] Optionally, the pressing device is connected to the neck fixer, and a plurality of first bolts are provided on the front of the neck fixer. A plurality of hollow holes are correspondingly provided on the bracket of the pressing device. The first bolts pass through the hollow holes to fix the pressing device to the front of the neck fixer.

[0023] The present invention also provides a method for using the cricoid cartilage pressing device, the method comprising:

[0024] Step 1: Wear the neck brace and insert the first bolt on the front of the neck brace through the corresponding hollow hole on the bracket so that the bracket is aligned with the center of the patient's neck;

[0025] Step 2: Loosen the butterfly nut to rotate the base within the range of the arc groove with the base axis as the axis, thereby driving the push rod and the pressing part to rotate in a direction parallel to the cricoid cartilage to adjust the angle;

[0026] Step 3: When the pressing part moves to face the cricoid cartilage, tighten the butterfly nut to squeeze the polygonal gasket on the polygonal segment. At this time, the base shaft and the base are fixed, locking the angular position of the pressing part;

[0027] Step 4: After the position of the pressing portion is locked, rotate the adjustment knob clockwise or counterclockwise to move the rack on the push rod forward or reverse along the internal thread of the adjustment knob, thereby driving the push rod to extend and retract in a direction perpendicular to the cricoid cartilage until the pressing portion contacts the cricoid cartilage;

[0028] Step 5: Continue to control the adjustment knob according to the pressure data sensed in real time by the pressure sensor so that the pressing part generates pressing force on the cricoid cartilage. When the pressing force meets the requirement, stop rotating the adjustment knob to allow the pressing part to generate continuous and stable pressing force on the cricoid cartilage.

[0029] Compared with the prior art, the technical solution of the present invention has at least the following beneficial effects:

[0030] 1) When the cricoid cartilage pressing device is worn correctly, first adjust the pressing part to move in a direction parallel to the cricoid cartilage (adjust the angle) through the angle adjustment component so that the pressing part is facing the patient's cricoid cartilage, and then adjust the pressing part to extend and retract in a direction perpendicular to the cricoid cartilage through the telescopic adjustment component to control the pressing force of the pressing part on the cricoid cartilage. By adjusting the direction and force of the pressing part, continuous, stable and precise pressing of the cricoid cartilage is achieved, avoiding unstable effects caused by operator fatigue or unskilled skills.

[0031] 2) The device is easy to use and can be operated by one person. The components can be quickly assembled and disassembled, making it easy to clean and maintain.

[0032] 3) When the patient's body position changes (such as sitting, prone, side-lying, etc.), it can still maintain a continuous and stable compression effect, ensuring reliable use in various surgeries and emergency situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 Schematic diagram of the structure of the neck immobilizer and cricoid cartilage compression device worn by the patient.

[0034] Figure 2 Schematic diagram of the structure of the cricoid cartilage pressing device of the present invention.

[0035] Figure 3 This is a partially enlarged structural schematic diagram of the cricoid cartilage pressing device of the present invention; wherein, a is a partial enlargement of the base, sleeve, adjustment knob, etc.; b is a partial enlargement of the butterfly nut, polygonal gasket, base shaft, etc.

[0036] Figure ID:

[0037] Neck fixer 1, first bolt 2, bracket part 3, screw 31, base 4, base shaft 41, polygonal segment 411, polygonal gasket 42, arc groove 421, butterfly nut 43, sleeve 44, annular groove 441, positioning groove 442, nut 443, first auxiliary gasket 45, second auxiliary gasket 46, second bolt 47, push rod 5, rack 51, adjustment bracket 52, top screw 53, adjustment knob 6, internal thread 61, inner convex ring 62, pressing part 7. DETAILED DESCRIPTION

[0038] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0039] In the description of the present invention, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical connections; direct connections or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0041] During tracheal intubation, doctors can more clearly identify the tracheal entrance by pressing the cricoid cartilage with their fingers, prevent gastric contents from overflowing and refluxing into the trachea, and reduce the risk of aspiration. However, during the operation, on the one hand, it is difficult to accurately control the pressing position and force when pressing with fingers, which requires high technical skills of the doctor. Long-term operation will cause finger soreness, affecting the quality of the operation, and even causing problems such as esophageal displacement or limited visualization. On the other hand, maintaining continuous and stable pressing usually requires the collaboration of at least two doctors, one doctor is responsible for pressing the cricoid cartilage, and the other doctor performs the intubation operation. Single-person operation can easily lead to unstable pressure, affecting the intubation effect. On the other hand, when the patient's body position changes (such as sitting, prone, side-lying, etc.), it is difficult to achieve effective compression using this pressing method.

[0042] In order to solve the above problems, the present invention designs a new type of cricoid cartilage pressing device. When worn correctly, the pressing part is first adjusted to move in a direction parallel to the cricoid cartilage (adjust the angle) through the angle adjustment component so that the pressing part is facing the patient's cricoid cartilage. Then, the telescopic adjustment component is used to adjust the pressing part to be telescopic in a direction perpendicular to the cricoid cartilage to control the pressing force of the pressing part on the cricoid cartilage. By adjusting the direction and strength of the pressing part, continuous, stable and precise pressing of the cricoid cartilage is achieved, avoiding unstable effects caused by operator fatigue or unskilled skills. At the same time, the device is simple to use and can be operated by one person. When the patient's body position changes, it can still maintain a continuous and stable pressing effect.

[0043] Specifically, the present invention provides a cricoid cartilage pressing device, comprising a bracket, an angle adjustment assembly, a telescopic adjustment assembly, and a pressing portion. The bracket is rotatably connected to the angle adjustment assembly, one end of the telescopic adjustment assembly is fixedly connected to the angle adjustment assembly, and the other end of the telescopic adjustment assembly is fixedly connected to the pressing portion. The angle adjustment assembly is adjusted to sequentially drive the telescopic adjustment assembly and the pressing portion to rotate, thereby enabling the pressing portion to move in a direction parallel to the cricoid cartilage, i.e., by adjusting the angle of the pressing portion, the pressing portion is directed directly toward the patient's cricoid cartilage. Furthermore, the telescopic adjustment assembly is adjusted to adjust the extension and retraction of the pressing portion in a direction perpendicular to the cricoid cartilage, thereby controlling the pressing force exerted by the pressing portion on the cricoid cartilage. This is described in detail below.

[0044] like Figure 1-Figure 3 As shown, the angle adjustment assembly includes a base 4, a base shaft 41, a polygonal gasket 42 and a butterfly nut 43. The top of the bracket is hinged with the base 4. The base shafts 41 are installed on both sides of the base 4, and the bracket includes two bracket members 3 with completely identical shapes and structures. Each bracket member 3 is provided with a screw 31 on the side away from the base shaft 41. Each bracket member 3 passes through the corresponding base shaft 41 through the connection hole provided thereon and is fixed to the base shaft 41 through the second bolt 47 and the butterfly nut 43. Specifically, Figure 3 As shown in a and b, one end of the base shaft 41 is fixedly connected to the base 4, and the end of the other end is provided with a polygonal segment 411 with a center hole. The first auxiliary gasket 45 and the bracket member 3 can be sequentially sleeved on the base shaft 41 through the polygonal segment 411, and then the polygonal gasket 42 is inserted. Since the polygonal gasket 42 has a polygonal center hole that matches the polygonal segment 411, it can be inserted and set on the polygonal segment 411. Further, the second auxiliary gasket 46 is placed close to the outside of the polygonal gasket 42, and finally the second bolt 47 is passed through the second auxiliary gasket 46 to be engaged with the center hole of the polygonal segment 411, so as to achieve rough fixation between the bracket member 3 and the base 4.

[0045] Furthermore, the outer edge of the polygonal washer 42 is provided with an arcuate groove 421. When the washer is mounted on the polygonal segment 411, the screw 31 on the bracket 3 also passes through the arcuate groove 421 and is engaged with the screw 31 using a butterfly nut 43. When the butterfly nut 43 is loose, the second bolt 47 is not tightly secured, allowing the base shaft 41 to rotate slightly, thereby driving the base 4 to rotate. This rotation of the base shaft 41 also drives the polygonal washer 42 mounted on the polygonal segment 411 to rotate. At the same time, the bracket 3 remains stationary, allowing the screw 31 thereon to move along the arcuate groove 421. When the butterfly nut 43 is tightened, the base shaft 41 and the bracket 3 are fastened and fixed, ultimately securing the base 4. Therefore, loosening the butterfly nut 43 allows the base 4 to rotate relative to the bracket, thereby adjusting its angle, while tightening the butterfly nut 43 locks the relative angle between the base 4 and the bracket.

[0046] The telescopic adjustment assembly includes a push rod 5, one end of which is located at the center of the base 4 and passes through the base 4. The main function of the base 4 is to control the push rod 5 to move in a direction parallel to the cricoid cartilage, and to adjust the angle so that the other end of the push rod 5 is aligned with the patient's cricoid cartilage. Figure 3b. When the butterfly nut 43 is loosened, the base 4 rotates slightly relative to the bracket 3 within the range of its circular arc groove 421 with the base shaft 41 as the axis, thereby driving the push rod 5 to move in a direction parallel to the cricoid cartilage. It can be understood that the larger the size of the circular arc groove 421, the larger the rotation angle of the base 4; the smaller the size of the circular arc groove 421, the smaller the rotation angle of the base 4. When the push rod 5 moves to face the cricoid cartilage, the butterfly nut 43 is tightened to squeeze the polygonal gasket 42 on the polygonal segment 411. The polygonal segment 411 is fixed because it is connected to the base shaft 41. At this time, the base shaft 41 and the base 4 are fixed, so that the angular position of the push rod 5 can be locked.

[0047] See also Figure 3 a and b, the telescopic adjustment assembly further includes a fixed adjustment knob 6 and a sleeve 44. The sleeve 44 extends through the interior of the base 4 and is sleeved onto the outer surface of the push rod 5. The inner surface of the sleeve 44 is provided with a positioning groove 442, and the surface of the sleeve 44 that contacts the adjustment knob 6 is provided with an annular groove 441. The adjustment knob 6 is sleeved onto the outer surface of the sleeve 44. The inner surface of the adjustment knob 6 is provided with an internal thread 61 and an internal convex ring 62. The internal convex ring 62 engages with the annular groove 441 to prevent the adjustment knob 6 from moving up and down along the push rod 5. A rack 51 is provided on the outer side of the push rod 5. The teeth of the rack 51 are uneven at both ends to better mate with the internal thread 61 of the adjustment knob 6. The positioning groove 442 matches the rack 51, and the rack 51 can be embedded and fixed in the positioning groove 442, thereby preventing the push rod 5 from rotating. When the adjusting knob 6 is rotated clockwise, the rack 51 moves along the internal thread 61, thereby causing the push rod 5 to move toward the cricoid cartilage. When the adjusting knob 6 is rotated counterclockwise, the rack 51 moves along the internal thread 61, thereby causing the push rod 5 to move away from the cricoid cartilage. That is, rotating the adjusting knob 6 can drive the push rod 5 to extend and retract in a direction perpendicular to the cricoid cartilage.

[0048] Considering the assembly problem between the adjusting knob 6 and the base 4, the sleeve 44 and the base 4 can be designed to be separated, that is, the sleeve 44 can pass through the base 4 and be locked by the nut 443 on the side close to the cricoid cartilage.

[0049] Continue to see Figure 2 The end of the push rod 5 away from the base 4 is connected to the pressing portion 7. In some embodiments, the end of the push rod 5 and the pressing portion 7 are connected by screws or rivets. A pressure sensor is provided at the connection between the end of the push rod 5 and the pressing portion 7. The pressure sensor is used to sense the pressure of the push rod 5 on the pressing portion 7 in real time, that is, the pressing force of the pressing portion 7 on the cricoid cartilage. The pressing force applied by the push rod 5 on the pressing portion 7 can be adjusted in real time by rotating the adjustment knob 6 as needed to ensure a continuous and stable compression effect. The installation method, specifications, data transmission form, etc. of the pressure sensor are not limited and belong to the existing technology.

[0050] The pressing portion 7 is made of a soft material. In some embodiments, the pressing portion 7 is made of any one of silicone, natural rubber, and polyurethane. The front end of the pressing portion 7 near the cricoid cartilage is curved and horizontally clamped on the patient's cricoid cartilage. In order to adjust the curvature of the pressing portion 7 to match the contour of the cricoid cartilage, symmetrically distributed adjustment brackets 52 are provided at both ends of the pressing portion 7. A top screw 53 passes through the adjustment brackets 52 and supports the pressing portion 7. When the top screw 53 is rotated clockwise, a downward force is generated by the adjustment bracket 52, causing both ends of the pressing portion 7 to approach the cricoid cartilage at the same time, thereby increasing the curvature of the pressing portion 7. When the top screw 53 is rotated counterclockwise, an upward force is generated by the adjustment bracket 52, causing both ends of the pressing portion 7 to move away from the cricoid cartilage at the same time, thereby decreasing the curvature of the pressing portion 7. Therefore, the curvature of the pressing portion 7 can be adjusted by controlling the top screw 53.

[0051] In addition, in this design, if Figure 1 As shown, a neck brace 1 is used in conjunction with a compression device to compress the cricoid cartilage. The compression device's overall fulcrum is designed to be located on the neck brace 1, which is secured to the patient's neck and in a tightened, tensioned state. The front of the neck brace 1 is provided with a plurality of first bolts 2, which are correspondingly provided with a plurality of hollow holes in the bracket. Each first bolt 2 is inserted through a corresponding hollow hole in the bracket to secure the compression device to the front of the neck brace 1.

[0052] In this embodiment, four first bolts 2 are provided on the front of the neck fixer 1, and four hollow holes are correspondingly provided on the bracket.

[0053] The following describes in detail the method of using the cricoid cartilage pressing device of the present invention in conjunction with the embodiments.

[0054] Example

[0055] When tracheal intubation is required, the neck fixator 1 is first put on. After putting it on, the four first bolts 2 on the front of the neck fixator 1 are passed through the corresponding four hollow holes on the bracket so that the bracket is aligned with the center of the patient's neck. Then, the butterfly nut 43 is loosened, and the base 4 is rotated within the range of the arc groove 421 with the base shaft 41 as the axis, thereby driving the push rod 5 and the pressing part 7 to rotate in a direction parallel to the cricoid cartilage to adjust the angle. When the pressing part 7 moves to face the cricoid cartilage, the butterfly nut 43 is tightened to squeeze the polygonal gasket 42 on the polygonal segment 411. At this time, the base shaft 41 and the base 4 are fixed, thereby locking the angular position of the pressing part 7. After the position of the pressing part 7 is determined, the adjusting knob 6 is rotated clockwise or counterclockwise to make the rack 51 on the push rod 5 move forward or reverse along the internal thread 61 of the adjusting knob 6, so as to drive the push rod 5 to extend and retract in a direction perpendicular to the cricoid cartilage until the pressing part 7 contacts the cricoid cartilage. The adjusting knob 6 is continued to be controlled according to the pressure data sensed in real time by the pressure sensor, so that the pressing part 7 generates a pressing force on the cricoid cartilage. When the pressing force meets the requirement, stop rotating the adjusting knob 6 to allow the pressing part 7 to generate a continuous and stable pressing force on the cricoid cartilage.

[0056] In summary, the present invention designs a cricoid cartilage pressing device, which, when worn correctly, first adjusts the pressing portion to move in a direction parallel to the cricoid cartilage (adjusts the angle) through the angle adjustment component so that the pressing portion is facing the patient's cricoid cartilage, and then adjusts the pressing portion to be telescopic in a direction perpendicular to the cricoid cartilage through the telescopic adjustment component to control the pressing force of the pressing portion on the cricoid cartilage. By adjusting the direction and strength of the pressing portion, continuous, stable and precise pressing of the cricoid cartilage is achieved, avoiding unstable effects caused by fatigue or unskilled operation of the operator. At the same time, the device is simple to use and can be operated by one person, and the various components can be quickly assembled and disassembled, making it easy to clean and maintain. When the patient's body position changes (such as sitting, prone, side-lying, etc.), the device can still maintain a continuous and stable pressing effect, ensuring that it can be used reliably in various surgeries and emergency situations.

[0057] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description is not intended to limit the present invention. After reading the above description, various modifications and substitutions of the present invention will become apparent to those skilled in the art. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A cricoid cartilage pressing device, characterized in that: It includes a bracket, an angle adjustment component, a telescopic adjustment component, and a pressing part; The bracket is rotatably connected to the angle adjustment assembly, one end of the telescopic adjustment assembly is fixedly connected to the angle adjustment assembly, and the other end is fixedly connected to the pressing portion; The angle adjustment assembly includes a base, a polygonal segment gasket and a butterfly nut; base shafts are respectively installed on both sides of the base, one end of each base shaft is fixedly connected to the base, and the end of the other end is provided with a polygonal segment; the polygonal gasket is sleeved on the polygonal segment, and the outer edge of the polygonal gasket is provided with an arc groove; the bracket includes two symmetrical bracket members, each of which is correspondingly sleeved on each base shaft and located between the polygonal gasket and the side surface of the base, and a screw is provided on the side of the bracket member away from the base shaft, and the screw passes through the arc groove on the polygonal gasket and is meshed with the butterfly nut; The angle adjustment assembly further includes a first auxiliary washer, a second auxiliary washer, and a second bolt. The first auxiliary washer is sleeved on each base shaft and located between the bracket and the side surface of the base. The second auxiliary washer is tightly attached to the outer side of the polygonal washer. The second bolt passes through the second auxiliary washer and is engaged with the polygonal segment. Adjusting the angle adjustment component to sequentially drive the telescopic adjustment component and the pressing portion to rotate, so as to adjust the angle of the pressing portion in a direction parallel to the cricoid cartilage so that the pressing portion faces the cricoid cartilage; The telescopic adjustment component is adjusted to adjust the pressing portion to telescope in a direction perpendicular to the cricoid cartilage, so as to control the pressing force of the pressing portion on the cricoid cartilage.

2. The cricoid cartilage pressing device according to claim 1, wherein: The telescopic adjustment assembly includes a push rod, a sleeve and an adjustment knob; One end of the push rod is embedded in the center of the base, and the other end is connected to the pressing part; a rack is also provided on the outer side of the push rod; The sleeve is sleeved on the outer surface of the push rod, and the adjusting knob is connected to the sleeve.

3. The cricoid cartilage pressing device according to claim 2, wherein: The inner surface of the adjusting knob is provided with an internal thread and an inner convex ring, the inner surface of the sleeve is provided with a positioning groove, the surface of the sleeve in contact with the adjusting knob is provided with an annular groove, the rack is embedded and fixed in the positioning groove, the rack is matched and engaged with the internal thread; the inner convex ring is matched and engaged with the annular groove.

4. The cricoid cartilage pressing device according to claim 2, wherein: The end portion of the other end of the push rod is connected to the pressing portion by screw connection or rivet connection; a pressure sensor is also provided at the connection between the end portion of the other end of the push rod and the pressing portion.

5. The cricoid cartilage pressing device according to claim 1, wherein: Adjustment brackets are symmetrically provided at both ends of the pressing portion, and a top screw is passed through the center position of each adjustment bracket. The top screw supports the pressing portion, and the curvature of the pressing portion can be adjusted by rotating the top screw.

6. The cricoid cartilage pressing device according to claim 1, wherein: The pressing device is connected to the neck fixer, and a plurality of first bolts are provided on the front of the neck fixer. A plurality of hollow holes are correspondingly provided on the bracket of the pressing device. The first bolts pass through the hollow holes to fix the pressing device to the front of the neck fixer.

7. A method for using a cricoid cartilage pressing device, comprising using the cricoid cartilage pressing device according to any one of claims 1 to 6, wherein: The method of use includes: Step 1: Wear the neck brace and insert the first bolt on the front of the neck brace through the corresponding hollow hole on the bracket so that the bracket is aligned with the center of the patient's neck; Step 2: Loosen the butterfly nut to rotate the base within the range of the arc groove with the base axis as the axis, thereby driving the push rod and the pressing part to rotate in a direction parallel to the cricoid cartilage to adjust the angle; Step 3: When the pressing part moves to face the cricoid cartilage, tighten the butterfly nut to squeeze the polygonal gasket on the polygonal segment. At this time, the base shaft and the base are fixed, locking the angular position of the pressing part; Step 4: After the position of the pressing portion is locked, rotate the adjustment knob clockwise or counterclockwise to move the rack on the push rod forward or reverse along the internal thread of the adjustment knob, thereby driving the push rod to extend and retract in a direction perpendicular to the cricoid cartilage until the pressing portion contacts the cricoid cartilage; Step 5: Continue to control the adjustment knob according to the pressure data sensed in real time by the pressure sensor so that the pressing part generates pressing force on the cricoid cartilage. When the pressing force meets the requirement, stop rotating the adjustment knob to allow the pressing part to generate continuous and stable pressing force on the cricoid cartilage.

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