Ring-shaped cartilage pressing device and using method thereof

Abstract

The invention discloses an annular cartilage pressing device and a using method thereof. The annular cartilage pressing device comprises a support, an angle adjusting assembly, a telescopic adjusting assembly and a pressing part. One end of the telescopic adjusting assembly is fixedly connected with the angle adjusting assembly, and the other end of the telescopic adjusting assembly is fixedly connected with the pressing part; the angle adjusting assembly is adjusted to sequentially drive the telescopic adjusting assembly and the pressing part to rotate, so that the angle of the pressing part is adjusted in the direction parallel to the ring-shaped cartilage, and the pressing part directly faces the ring-shaped cartilage; the telescopic adjusting assembly is adjusted to adjust the pressing part to stretch out and draw back in the direction perpendicular to the annular cartilage so as to control the pressing force of the pressing part on the annular cartilage. According to the pressing device, continuous, stable and accurate pressing on the ring-shaped cartilage is achieved by adjusting the direction and the force of the pressing part, and the situation that the action effect is unstable due to fatigue of operators or unskilled techniques is avoided.

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, providing a stable operating environment by ensuring that patients experience no pain and discomfort during surgery. Intraoperative endotracheal intubation is an important medical procedure that involves inserting a special tube into the trachea to form a channel connected to the outside world to maintain an open airway when the patient is unable to breathe on their own or has difficulty breathing. With this channel, gas exchange can be achieved, oxygen can be delivered to the lungs, and carbon dioxide can be removed. Endotracheal intubation is crucial in emergency rescue, major surgery, or intensive care.

[0003] However, due to the particularity of the patient's anatomical structure or pathological condition, tracheal intubation sometimes becomes 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 compress the patient's cricoid cartilage (C-shaped cartilage located below the Adam's apple, close to the entrance of the larynx) with fingers during tracheal intubation to help achieve the following purposes: (1) Improve the field of vision. When performing tracheal intubation, the doctor needs to clearly see the location of the tracheal entrance to correctly place the tube. By compressing 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 more clearly identify the tracheal entrance. (2) Prevent reflux of gastric contents. When compressing the cricoid cartilage, the esophageal entrance is closed by applying pressure, effectively preventing the overflow and reflux of gastric contents into the trachea caused by 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 vision 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 maneuver" 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 cause coughing, vomiting and other reactions, further increasing the difficulty of intubation; while too little pressure will not 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) Long duration and high manpower requirements. 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 undergone special training and are proficient in the skills of the "Sellick maneuver", it is difficult for them 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. It is difficult to achieve effective compression when the patient's body position changes (such as sitting, prone, side-lying, etc.).

[0005] Based on the above problems, researchers are actively developing a new cricoid cartilage compression device to reduce manpower requirements, accurately control the compression 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 a method of using the same, so as 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 part;

[0008] 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;

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

[0010] The telescopic adjustment component is adjusted to adjust the telescopic movement of the pressing portion 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 gasket 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 arranged on the outer edge of the polygonal gasket.

[0014] Optionally, the bracket includes two symmetrical bracket members, each of which is correspondingly sleeved on each of the base shafts and 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 meshed and connected 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 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 comprises 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 meshed with the internal thread; the inner convex ring is matched and meshed with the annular groove.

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

[0021] Optionally, adjustment brackets are symmetrically arranged at both ends of the pressing portion, and a top screw runs through the center position of each of the adjustment brackets. 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 a neck fixer, a plurality of first bolts are provided on the front side of the neck fixer, a plurality of hollow holes are correspondingly provided on the bracket of the pressing device, and the first bolts penetrate the hollow holes to fix the pressing device to the front side 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 fixator, and insert the first bolt on the front of the neck fixator 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, and the base shaft and the base are fixed to lock the angle position of the pressing part;

[0027] Step 4: After the position of the pressing part is locked, the adjusting knob is rotated clockwise or counterclockwise to make the rack on the push rod move forward or backward along the internal thread of the adjusting knob, so as to drive the push rod to extend and retract in a direction perpendicular to the cricoid cartilage until the pressing part 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 pressure on the cricoid cartilage. When the pressing pressure meets the requirement, stop rotating the adjustment knob to allow the pressing part to generate continuous and stable pressing pressure 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, lying prone, lying on the side, 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 It is a schematic structural diagram of the cricoid cartilage pressing device of the present invention.

[0035] Figure 3 It is a partial 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 member 3, screw rod 31, base 4, base shaft 41, polygonal segment 411, polygonal gasket 42, arc groove 421, butterfly nut 43, sleeve 44, ring 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 described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are 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", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to 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 strength when pressing with fingers, which requires high technical skills of doctors. Long-term operation will cause finger soreness, affect the quality of operation, and even cause problems such as esophageal displacement or limited visualization. On the other hand, to maintain continuous and stable pressing, it 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. Single-person operation is prone to unstable pressure, affecting the intubation effect. On the other hand, when the patient's 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, and then the pressing part is adjusted to telescope 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 strength of the pressing part, the cricoid cartilage is pressed continuously and stably, avoiding the unstable effect 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. When the patient's body position changes, the pressing effect can still be maintained continuously and stably.

[0043] Specifically, the present invention provides a cricoid cartilage pressing device, comprising a bracket, an angle adjustment component, a telescopic adjustment component, and a pressing part. 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 of the telescopic adjustment component is fixedly connected to the pressing part; the angle adjustment component is adjusted to drive the telescopic adjustment component and the pressing part to rotate in turn, so as to realize the movement of the pressing part in a direction parallel to the cricoid cartilage, that is, the pressing part is made to face the cricoid cartilage of the patient by adjusting the angle of the pressing part; the telescopic adjustment component is further adjusted to adjust the telescopic adjustment of the pressing part in a direction perpendicular to the cricoid cartilage to control the pressing force of the pressing part on the cricoid cartilage, which 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 respectively 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 a connecting hole provided thereon and is fixed to the base shaft 41 through a second bolt 47 and a 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 matching the polygonal segment 411, it can be sleeved and set on the polygonal segment 411. Further, the second auxiliary gasket 46 is placed close to the outer side 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 gasket 42 is provided with an arc groove 421. When it is sleeved on the polygonal segment 411, the screw 31 on the bracket 3 also penetrates the arc groove 421, and is meshed and connected with the screw 31 by a butterfly nut 43. When the butterfly nut 43 is in a loose state, since the second bolt 47 is not fixed tightly, the base shaft 41 can rotate slightly, thereby driving the base 4 to rotate. When the base shaft 41 rotates, the polygonal gasket 42 sleeved on the polygonal segment 411 is also driven to rotate, and at the same time, the bracket 3 is fixed, so the screw 31 thereon can move along the arc groove 421; when the butterfly nut 43 is in a tightened state, the base shaft 41 and the bracket 3 are tightened and fixed, and finally the base 4 is tightened and fixed. Therefore, loosening the butterfly nut 43 can make the base 4 rotate relative to the bracket to adjust the angle of the base 4, and tightening the butterfly nut 43 can achieve the locking of 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 disposed 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 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 arc groove 421, the larger the rotation angle of the base 4; the smaller the size of the 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, and 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 comprises a fixed adjustment knob 6 and a sleeve 44. The sleeve 44 is arranged inside the base 4 and sleeved on the outer surface of the push rod 5. The inner surface of the sleeve 44 is provided with a positioning groove 442. The surface of the sleeve 44 in contact with the adjustment knob 6 is provided with an annular groove 441. The adjustment knob 6 is sleeved on 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 is engaged with the annular groove 441 to prevent the adjustment knob 6 from moving up and down along the direction of 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 not flush at both ends so as to better match and engage with the internal thread 61 of the adjustment knob 6. The positioning groove 442 matches the rack 51. The rack 51 can be embedded and fixed in the positioning groove 442 to prevent the push rod 5 from rotating. Rotate the adjusting knob 6 clockwise, the rack 51 moves along the internal thread 61, so that the push rod 5 moves toward the cricoid cartilage; rotate the adjusting knob 6 counterclockwise, the rack 51 moves along the internal thread 61, so that the push rod 5 moves 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 close to the side of the cricoid cartilage.

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

[0050] The pressing part 7 is made of soft material. In some embodiments, the pressing part 7 is made of any one of silicone, natural rubber, and polyurethane. The front end of the pressing part 7 near the cricoid cartilage is arc-shaped and horizontally clamped at the patient's cricoid cartilage. In order to adjust the curvature of the pressing part 7 to match the contour of the cricoid cartilage, symmetrically distributed adjustment brackets 52 are provided at both ends of the pressing part 7. The top screw 53 penetrates the adjustment bracket 52 and supports the pressing part 7. When the top screw 53 is rotated clockwise, a downward force is generated by the adjustment bracket 52, so that the two ends of the pressing part 7 are close to the cricoid cartilage at the same time, and the curvature of the pressing part 7 is increased; when the top screw 53 is rotated counterclockwise, an upward force is generated by the adjustment bracket 52, so that the two ends of the pressing part 7 are away from the cricoid cartilage at the same time, and the curvature of the pressing part 7 is reduced; therefore, the curvature of the pressing part 7 can be adjusted by controlling the top screw 53.

[0051] In addition, in this design, Figure 1 As shown, the neck fixator 1 needs to be used in conjunction with the pressing device to press the cricoid cartilage. The overall fulcrum of the pressing device is designed on the neck fixator 1. The neck fixator 1 is fixed to the patient's neck and is in a tightened and tensioned state. The front of the neck fixator 1 is provided with a plurality of first bolts 2, and the bracket is correspondingly provided with a plurality of hollow holes. Each first bolt 2 is passed through each hollow hole on the bracket to fix the pressing device to the front of the neck fixator 1.

[0052] In this embodiment, four first bolts 2 are provided on the front side 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 worn. After wearing, 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 faces the center of the patient's neck. Then loosen the butterfly nut 43, so that the base 4 rotates 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, tighten the butterfly nut 43 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 angle 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 reversely 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 continuously 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, the adjusting knob 6 is stopped from being rotated, so that the pressing part 7 can generate a continuous and stable pressing force on the cricoid cartilage.

[0056] In summary, a cricoid cartilage pressing device designed by the present invention, when worn correctly, first adjusts the pressing part to move in a direction parallel to the cricoid cartilage (adjusts the angle) through the angle adjustment component so that the pressing part is facing the patient's cricoid cartilage, and then adjusts the pressing part to telescope 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, and achieves continuous and stable precise pressing of the cricoid cartilage by adjusting the direction and strength of the pressing part, avoiding the unstable effect caused by fatigue or unskilled operation of the operator. At the same time, the use process of this device is simple, and one person can operate it, and the various components can be quickly assembled and disassembled, which is convenient for cleaning and maintenance. When the patient's body position changes (such as sitting, prone, side-lying, etc.), this device can still maintain a continuous and stable pressing effect, ensuring that it can be used reliably in various operations and emergency situations.

[0057] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the present invention. After reading the above content, it will be apparent to those skilled in the art that various modifications and substitutions of the present invention will occur. Therefore, the protection scope of the present invention should be limited 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 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 to sequentially drive the telescopic adjustment component and the pressing part to rotate, so as to adjust the angle of the pressing part in a direction parallel to the cricoid cartilage, so that the pressing part faces the cricoid cartilage; The telescopic adjustment component is adjusted to adjust the telescopic movement of the pressing portion 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, characterized in that: The angle adjustment assembly comprises 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 other end is provided with a polygonal segment; The polygonal gasket is sleeved on the polygonal segment, and an arc groove is arranged on the outer edge of the polygonal gasket.

3. The cricoid cartilage pressing device according to claim 2, characterized in that: The bracket includes two symmetrical bracket parts, each of which is correspondingly sleeved on each base shaft and located between the polygonal gasket and the side of the base. A screw is arranged on the side of the bracket part away from the base shaft. The screw passes through the arc groove on the polygonal gasket and is meshed and connected with the butterfly nut.

4. The cricoid cartilage pressing device according to claim 3, characterized in that: The angle adjustment assembly also includes a first auxiliary gasket, a second auxiliary gasket and a second bolt. The first auxiliary gasket is sleeved on each base shaft and is located between the bracket and the side of the base. The second auxiliary gasket is tightly attached to the outer side of the polygonal gasket. The second bolt passes through the second auxiliary gasket and is engaged with the polygonal segment.

5. The cricoid cartilage pressing device according to claim 2, characterized in that: The telescopic adjustment assembly comprises 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.

6. The cricoid cartilage pressing device according to claim 5, characterized in that: 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 meshed with the internal thread; the inner convex ring is matched and meshed with the annular groove.

7. The cricoid cartilage pressing device according to claim 5, characterized in that: The end of the other end of the push rod is connected to the pressing part by screw connection or rivet connection; a pressure sensor is also provided at the connection between the end of the other end of the push rod and the pressing part.

8. The cricoid cartilage pressing device according to claim 1, characterized in that: Adjustment brackets are symmetrically arranged at both ends of the pressing part, and a top screw runs through the center position of each of the adjustment brackets. The top screw supports the pressing part, and the curvature of the pressing part can be adjusted by rotating the top screw.

9. The cricoid cartilage pressing device according to claim 1, characterized in that: The pressing device is connected to the neck fixer, a plurality of first bolts are arranged on the front side of the neck fixer, a plurality of hollow holes are correspondingly arranged on the bracket of the pressing device, and the first bolts penetrate the hollow holes to fix the pressing device to the front side of the neck fixer.

10. A method for using a cricoid cartilage pressing device, using the cricoid cartilage pressing device according to any one of claims 1 to 9, characterized in that: The method of use includes: Step 1: Wear the neck fixator, and insert the first bolt on the front of the neck fixator 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, and the base shaft and the base are fixed to lock the angle position of the pressing part; Step 4: After the position of the pressing part is locked, the adjusting knob is rotated clockwise or counterclockwise to make the rack on the push rod move forward or backward along the internal thread of the adjusting knob, so as to drive the push rod to extend and retract in a direction perpendicular to the cricoid cartilage until the pressing part 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 pressure on the cricoid cartilage. When the pressing pressure meets the requirement, stop rotating the adjustment knob to allow the pressing part to generate continuous and stable pressing pressure on the cricoid cartilage.

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