Accurate adjusting and fixing device for tracheotomy

Abstract

The invention discloses an accurate adjusting and fixing device for tracheotomy, and relates to the technical field of medical instruments, the accurate adjusting and fixing device for tracheotomy comprises a rear belt, an adjusting part and a buckling part, the adjusting part is arranged on the rear belt, when the accurate adjusting and fixing device is used, the existing operation mode that a medical worker assists a tracheotomy cannula with one hand is still kept, the cannula cannot be disengaged, and before operation, the fixing device is fixed. The rear belt is placed on the lower side of the neck of a patient, during operation, the buckling plates of the buckling parts on the two sides penetrate through the side holes in the side wings of the sleeve outwards from the skin attaching side, the buckling parts are pulled towards the two sides of the sleeve at the same time, the pressing plates are pushed and compress the compression springs, the pressing plates relieve limiting of the buckling plates, and under the action of the rotating springs, the buckling parts rotate in the belt buckle direction and are buckled tightly. The force of the rotating spring is greater than that of the pressure spring, so that the side hole of the tracheostomy tube side wing is kept stable; meanwhile, after the pressing plate moves, the pull wire is loosened, the reset spring pushes the ratchet to be clamped and matched with the ratchet wheel, and the medical staff operates the rotating handle, so that the rotating column winds and tightens the rear belt to adapt to individual differences.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, and in particular to a precise adjustment and fixing device for tracheotomy. Background Art

[0002] Tracheotomy is to cut open the cervical trachea and insert a metal tracheal tube and a silicone cannula. It is a common surgery to relieve dyspnea caused by laryngeal origin, respiratory dysfunction or retention of lower respiratory tract secretions. The patient should first lie in the supine position, with a pillow under the shoulders and the head tilted back so that the trachea is close to the skin and clearly exposed, which is conducive to the operation. An assistant should sit on the side of the head to fix the head and keep it in the neutral position. Routine disinfection should be performed and sterile towels should be laid. Local anesthesia should be performed along the middle of the anterior neck, from the lower edge of the thyroid cartilage to the suprasternal fossa, with lidocaine infiltration anesthesia. An incision should be made using a straight incision, from the lower edge of the thyroid cartilage to the suprasternal fossa, and the skin and subcutaneous tissue should be cut along the midline of the anterior neck. The tissue in front of the trachea should be separated, and the sternohyoid muscle and sternothyroid muscle should be separated along the midline with a vascular clamp to expose the isthmus of the thyroid gland and the trachea. After the trachea is cut and the trachea is identified, the 2nd to 4th tracheal rings should be used for incision. Use a sharp blade to cut 1-2 tracheal rings in an arc shape from bottom to top to form a tracheal anterior wall flap, and fix it subcutaneously after intubation; insert the tracheal cannula: use curved forceps or tracheal incision dilator to open the tracheal incision, insert a tracheal cannula of suitable size with a tube core, after inserting the outer tube, remove the tube core, put in the inner tube, and suck out the secretions; treat the wound, tie the belt on the tracheal cannula around the neck, tie it into a knot to fix it firmly; finally, use a piece of open gauze to pad between the wound and the cannula; After the tracheotomy is completed, the patient needs to solve the problems of dyspnea and secretion cleaning, and medical staff need to perform maintenance. Postoperative care includes adjusting the tightness of the tube tie at any time, because the tracheostomy tube tie around the neck is contaminated by sputum removal and secretions and needs to be replaced regularly.

[0003] In summary, the following technical problems exist in the current use and maintenance process of the lace of the tracheotomy tube: since the lace is wrapped around the patient's neck and also limits the tube to prevent the tube from falling out, the lace cannot be too loose or too tight. Too looseness will cause the tube to fall out, and too tightness will cause the patient's breathing to be obstructed. The medical staff cannot accurately control the tightness after measuring and tightening the lace, and it is difficult to open the tightening position for adjustment after tightening. At the same time, the adjustment situation still remains unsatisfactory due to operational errors. Moreover, when replacing it regularly, it is necessary to remove the old lace and replace it with a new lace while keeping the tube from falling out. Both loosening and tightening operations are required, which makes it difficult for medical staff to operate and the problem of tube falling out easily occurs. Summary of the invention

[0004] In view of the above problems existing in the prior art, the present invention provides a precise adjustment and fixing device for tracheotomy.

[0005] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions: A precise adjustment and fixing device for tracheotomy comprises a rear belt, an adjustment part and a buckling part. The rear belt is provided with the adjustment part, the adjustment part is provided with a front belt on the side away from the rear side, the front belt is provided with a buckling part at one end away from the adjustment part, a fastening component and a linkage locking component are provided on the buckling part, the fastening component and the linkage locking component cooperate, the adjustment part comprises a one-way component, and the one-way component cooperates with the linkage locking component.

[0006] Furthermore, the adjusting parts are provided with two, and the adjusting parts are arranged at the two ends of the rear strap, the front strap is provided with two, and the front strap corresponds to the adjusting parts, and the buckling parts are provided with two, and the buckling parts correspond to the front strap.

[0007] The buckle assembly further comprises a buckle, a vertical plate, a pressure plate, a compression spring, a vertical shaft, a gusset, a swivel seat and a swivel spring, wherein one end of the front strap away from the adjusting portion is fixedly connected to the buckle, the vertical plate is fixedly connected to the buckle, the vertical plate is perpendicular to the buckle, a pressure plate is provided on the vertical plate near the front strap, the pressure plate is parallel to the vertical plate, a compression spring is fixedly connected between the pressure plate and the vertical plate, the vertical plate is provided with a gusset at the end away from the buckle, the gusset is parallel to the buckle, the vertical plate protrudes in the direction of the gusset at one end close to the gusset, the vertical plate is fixedly connected with the vertical shaft at the protruding position close to the gusset, the gusset is provided with a swivel seat near the vertical shaft, the swivel seat is rotatably connected to the swivel shaft, a swivel spring is fixedly connected between the swivel seat and the swivel shaft, the pressure plate is slidably connected between the buckle and the gusset, and the elasticity coefficient of the swivel spring is greater than the elasticity coefficient of the compression spring; The rotating spring makes the buckle plate rotate toward the buckle direction, and the pressure plate hinders the rotation of the buckle plate. The thickness of the pressure plate is equivalent to the protruding height of the vertical plate at the buckle plate position. When the pressure plate moves to a position close to the vertical plate, the pressure plate no longer hinders the rotation of the buckle plate.

[0008] Furthermore, the linkage locking assembly includes a pull wire, the pressure plate is fixedly connected to a pull wire on one side close to the vertical plate, the pull wire extends into the vertical plate, the pull wire is slidably connected to the vertical plate, and is bent 180 degrees toward the vertical plate. The pull wire is slidably connected to the buckle, and the pull wire extends to the adjustment part.

[0009] Furthermore, the adjustment part includes an upper frame, a lower frame and a rotating column, a fixed frame is fixedly connected between the upper frame and the lower frame, the front belt is fixedly connected to the fixed frame, the upper frame and the lower frame, the rotating column is located between the upper frame and the lower frame, both ends of the rear belt are fixedly connected to the rotating column, the fixed frame guides the rear belt to cooperate with the rotating column, a working groove is opened on the upper side of the lower frame, a one-way component is provided in the working groove on the lower side of the rotating column, and the pull wire cooperates with the one-way component.

[0010] Furthermore, the one-way component includes a ratchet, ratchet teeth and a return spring, the lower side of the rotating column is fixedly connected to the ratchet, one side of the ratchet is provided with a ratchet, the ratchet teeth are engaged with the ratchet, the ratchet teeth are rotatably connected to the lower frame, the ratchet teeth are fixedly connected to the return spring, the return spring is fixedly connected to the lower frame, the pull wire passes through the lower frame and is fixedly connected to the ratchet teeth, and the elastic coefficient of the compression spring is greater than the elastic coefficient of the return spring; it is ensured that the matching relationship between the ratchet teeth and the ratchet wheel changes with the action of the pressure plate; When the ratchet wheel and the ratchet teeth cooperate, the rotating column rotates in the direction of winding the rear belt; when the pressure plate restricts the rotation of the buckle plate, the pull wire pulls the ratchet teeth away from the ratchet wheel, and the ratchet teeth are separated from the ratchet wheel.

[0011] Furthermore, a rotating hole is opened in the middle of the upper frame, a rotating shaft is fixedly connected to the upper side of the rotating column, the rotating shaft is rotatably connected in the rotating hole, and a rotating handle is fixedly connected to the upper side of the rotating shaft.

[0012] Beneficial effects of the present invention: The invention relates to a precise adjustment and fixing device for tracheotomy. When in use, the existing operation mode of assisting the tracheotomy cannula with one hand of medical personnel is still maintained, so that the cannula will not fall off. Before operation, the rear belt is placed on the lower side of the patient's neck. During operation, the buckle plates of the buckle parts on both sides are passed through the side holes on the side wings of the cannula from the side that fits the skin outward, and the buckle parts are pulled toward both sides of the cannula, so that the pressure plate is pushed and the compression spring is compressed. The pressure plate releases the limit on the buckle plate. Under the action of the rotating spring, the buckle rotates in the direction of the buckle and fastens. The force of the rotating spring is greater than that of the compression spring, which ensures that the side holes on the side wings of the tracheotomy cannula are kept stable. At the same time, after the pressure plate moves, the pull line is relaxed, and the reset spring pushes the ratchet teeth to engage with the ratchet wheel. The medical personnel operates the rotating handle so that the rotating column wraps around the rear belt and tightens the rear belt. The medical personnel can control it and freely adjust it according to the patient's perception, so as to ensure that the tightness is controlled appropriately and adapt to individual differences while limiting the cannula from falling off. When it is too tight, pull the buckle plate on one side and move it closer to the buckle part on the other side. After a short tightening, the pull wire pulls the ratchet teeth out of the ratchet wheel, so that the rear belt is released and the whole belt is relaxed. After completion, pull the buckle again to make the pressure plate close to the vertical plate to complete the linkage locking. During regular replacement, keep one hand holding the cannula to prevent it from falling out. Before the operation, place the rear strap of the new fixation device on the lower side of the patient's neck, press the buckle plate on one side and move it close to the buckle part on the other side. The rear strap is released and loosened as a whole. The two are loosened in conjunction with each other, and the cannula is directly taken out from the side opening of the side wing of the cannula, and the buckle part of the new fixation device is installed. In this way, the replacement work can be completed with one hand; Since gauze is padded near the cannula, the buckle will not press on the skin, and the medical staff does not need to tighten or loosen the buckle during the entire operation, thus avoiding cumbersome operation and reducing the workload of the medical staff. The buckle can also achieve an accurate tightness and improve the nursing effect and efficiency.

[0013] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0015] Figure 1 This is a schematic diagram of the overall structure of the precise adjustment and fixing device for tracheotomy according to an embodiment of the present invention; Figure 2 It is a schematic diagram of the local structural connection of the buckling part according to the embodiment of the present invention; Figure 3 It is a schematic diagram of the structure of the buckling part and the pull wire according to the embodiment of the present invention; Figure 4 It is a schematic diagram of the top view of the buckling part and the pull wire according to the embodiment of the present invention; Figure 5 It is a schematic diagram of the cross section of the buckle part and the structure of the pull wire according to the embodiment of the present invention; Figure 6 is a schematic structural diagram of a buckling portion according to an embodiment of the present invention; Figure 7 It is a schematic diagram of the structure of the front belt, the upper frame and the lower frame according to an embodiment of the present invention; Figure 8 It is a schematic structural diagram of the rear belt, the adjustment part, the pull wire and the pressure plate according to the embodiment of the present invention; Fig. 9 It is a schematic structural diagram of the rear belt and the rotating column according to an embodiment of the present invention; Fig.10 It is a schematic structural diagram of the rear belt, rotating column and ratchet wheel according to an embodiment of the present invention; Fig.11 It is a schematic diagram of the structure of the ratchet wheel and the ratchet teeth according to an embodiment of the present invention; Fig.12 It is a schematic diagram of the structure of the pull wire and the ratchet described in an embodiment of the present invention.

[0016] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1-rear belt, 2-front belt, 201-buckle, 202-vertical plate, 203-pressure plate, 204-compression spring, 205-vertical axis, 206-buckle plate, 207-swivel seat, 208-swivel spring, 210-pull wire, 3-upper frame, 301-swivel hole, 302-lower frame, 303-working groove, 304-fixed frame, 310-swivel column, 311-swivel shaft, 312-swivel handle, 313-ratchet, 314-ratchet, 315-reset spring. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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. Example 1

[0018] like Figure 1-12 Shown The invention discloses a precise adjustment and fixing device for tracheotomy, comprising a rear belt (1), an adjustment portion and a buckling portion. The rear belt (1) is provided with an adjustment portion, a front belt (2) is provided on a side of the adjustment portion away from the rear side, a buckling portion is provided on an end of the front belt (2) away from the adjustment portion, a buckling component and a linkage locking component are provided on the buckling portion, the buckling component and the linkage locking component cooperate, the adjustment portion comprises a one-way component, and the one-way component cooperates with the linkage locking component; The adjusting parts are provided with two, and the adjusting parts are arranged at the two ends of the rear belt (1); the front belt (2) is provided with two, and the front belt (2) corresponds to the adjusting parts; the buckling parts are provided with two, and the buckling parts correspond to the front belt (2); Example 2

[0019] like Figure 2-6 Shown The fastening assembly comprises a buckle (201), a vertical plate (202), a pressure plate (203), a compression spring (204), a vertical shaft (205), a buckle plate (206), a swivel seat (207) and a swivel spring (208); the end of the front strap (2) away from the adjustment portion is fixedly connected to the buckle (201); the buckle (201) is fixedly connected to the vertical plate (202); the vertical plate (202) is perpendicular to the buckle (201); the vertical plate (202) is provided with a pressure plate (203) on a side close to the front strap (2); the pressure plate (203) is parallel to the vertical plate (202); a compression spring (204) is fixedly connected between the pressure plate (203) and the vertical plate (202); the vertical plate (202) is provided with a pressure plate (203) on an end away from the buckle (201); A buckle plate (206) is provided, the buckle plate (206) is parallel to the belt buckle (201), the vertical plate (202) protrudes toward the buckle plate (206) at one end close to the buckle plate (206), the vertical plate (202) is fixedly connected to a vertical axis (205) at a protruding position close to the buckle plate (206), the buckle plate (206) is provided with a rotating seat (207) close to the vertical axis (205), the rotating seat (207) is rotatably connected to the rotating shaft (311), a rotating spring (208) is fixedly connected between the rotating seat (207) and the rotating shaft (311), the pressure plate (203) is slidably connected between the belt buckle (201) and the buckle plate (206), and the elastic coefficient of the rotating spring (208) is greater than the elastic coefficient of the compression spring (204); The rotating spring (208) causes the buckle plate (206) to rotate in the direction of the belt buckle (201), and the pressing plate (203) hinders the buckle plate (206) from rotating. The thickness of the pressing plate (203) is equivalent to the protruding height of the vertical plate (202) at the position of the buckle plate (206). When the pressing plate (203) moves to a position close to the vertical plate (202), the pressing plate (203) no longer hinders the buckle plate (206) from rotating. The linkage locking assembly comprises a pull wire (210), the pressure plate (203) is fixedly connected with the pull wire (210) on one side close to the vertical plate (202), the pull wire (210) extends into the vertical plate (202), the pull wire (210) is slidably connected to the vertical plate (202), the vertical plate (202) is bent 180 degrees, the pull wire (210) is slidably connected to the buckle (201), and the pull wire (210) extends to the adjustment portion; Example 3

[0020] like Figure 7-12 Shown The adjustment portion comprises an upper frame (3), a lower frame (302) and a rotating column (310); a fixing frame (304) is fixedly connected between the upper frame (3) and the lower frame (302); the front belt (2) is fixedly connected to the fixing frame (304), the upper frame (3) and the lower frame (302); the rotating column (310) is located between the upper frame (3) and the lower frame (302); both ends of the rear belt (1) are fixedly connected to the rotating column (310); the fixing frame (304) guides the rear belt (1) to cooperate with the rotating column (310); a working groove (303) is formed on the upper side of the lower frame (302); a one-way component is provided on the lower side of the rotating column (310) in the working groove (303); and the pull wire (210) cooperates with the one-way component; The one-way component comprises a ratchet (313), a ratchet tooth (314) and a return spring (315); the ratchet (313) is fixedly connected to the lower side of the rotating column (310); a ratchet tooth (314) is provided on one side of the ratchet (313); the ratchet tooth (314) is engaged with the ratchet (313); the ratchet tooth (314) is rotatably connected to the lower frame (302); a return spring (315) is fixedly connected to the ratchet tooth (314); the return spring (315) is fixedly connected to the lower frame (302); the pull wire (210) passes through the lower frame (302) and is fixedly connected to the ratchet tooth (314); the elastic coefficient of the compression spring (204) is greater than the elastic coefficient of the return spring (315); it is ensured that the matching relationship between the ratchet tooth (314) and the ratchet (313) changes with the action of the pressure plate (203); When the ratchet wheel (313) and the ratchet teeth (314) cooperate, the rotating column (310) rotates in a direction to wrap around the rear belt (1); when the pressing plate (203) rotates while limiting the buckle plate (206), the pull wire (210) pulls the ratchet teeth (314) away from the ratchet wheel (313), and the ratchet teeth (314) are separated from the ratchet wheel (313); A rotating hole (301) is formed in the middle of the upper frame (3), a rotating shaft (311) is fixedly connected to the upper side of the rotating column (310), the rotating shaft (311) is rotatably connected in the rotating hole (301), and a rotating handle (312) is fixedly connected to the upper side of the rotating shaft (311).

[0021] In summary, the present invention provides a precise adjustment and fixing device for tracheotomy. When in use, the existing medical staff's one-handed auxiliary tracheotomy cannula operation method is maintained, so that the cannula will not fall off. Before operation, the rear belt (1) is placed on the lower side of the patient's neck. During operation, the buckle plates (206) of the buckling parts on both sides are passed through the side holes on the side wings of the cannula from the skin-contacting side. At the same time, the buckling parts are pulled toward both sides of the cannula, so that the pressure plate (203) is pushed and the compression spring (204) is compressed. The pressure plate (203) releases the limit on the buckle plate (206). Under the action of the rotating spring (208), the buckle (206) is buckled to the belt buckle ( 201) and fastened, and the force of the rotating spring (208) is greater than that of the compression spring (204), so as to ensure that the side hole of the lateral wing of the tracheostomy tube remains stable; at the same time, after the pressure plate (203) moves, the pull wire (210) is relaxed, and the reset spring (315) pushes the ratchet (314) and the ratchet wheel (313) to engage with each other, and the medical staff operates the rotating handle (312) so that the rotating column (310) wraps around the rear belt (1) and tightens the rear belt (1), which can be freely adjusted by the medical staff according to the patient's perception, so as to ensure that the tightness is controlled appropriately and adapt to individual differences while preventing the tube from falling off; When it is too tight, the buckle plate (206) on one side is pulled and moved closer to the buckle part on the other side. After a short period of tension, the pull line (210) pulls the ratchet (314) out of the ratchet wheel (313), so that the rear belt (1) is released and the whole belt is relaxed. After completion, the buckle (201) is pulled again so that the pressure plate (203) is close to the vertical plate (202) to complete the linkage locking. During regular replacement, one hand is maintained to hold the sleeve to prevent it from falling out. Before the operation, the rear belt (1) of the new fixing device is placed on the lower side of the patient's neck, the buckle plate (206) on one side is pressed and moved closer to the buckle part on the other side. The rear belt (1) is released and loosened as a whole. The two are loosened in tandem and taken out directly from the side opening of the sleeve wing. The buckle part of the new fixing device is installed. In this way, the replacement work can be completed with one hand. Since gauze is padded near the position of the sleeve, the buckle (201) will not compress the skin, and the entire operation process does not require medical personnel to tighten and loosen, thereby avoiding cumbersome operations, reducing the workload of medical personnel, and achieving an accurate tightness state, thereby improving nursing effects and efficiency.

[0022] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0023] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A precise adjustment and fixing device for tracheotomy, characterized in that: It includes a rear strap, an adjusting part and a buckling part. The rear strap is provided with an adjusting part, the adjusting part is provided with a front strap on the side away from the rear side, the front strap is provided with a buckling part at one end away from the adjusting part, a fastening component and a linkage locking component are provided on the buckling part, the fastening component and the linkage locking component cooperate, the adjusting part includes a one-way component, and the one-way component cooperates with the linkage locking component.

2. The precise adjustment and fixing device for tracheotomy according to claim 1, characterized in that: The two adjusting parts are provided, and the adjusting parts are arranged at the two ends of the rear belt. The two front belts are provided, and the front belts correspond to the adjusting parts. The two buckling parts are provided, and the buckling parts correspond to the front belt.

3. The precise adjustment and fixing device for tracheotomy according to claim 2, characterized in that: The fastening assembly includes a buckle, a vertical plate, a pressure plate, a compression spring, a vertical shaft, a buckle plate, a swivel seat and a swivel spring, wherein the front strap is fixedly connected to the buckle at one end away from the adjusting portion, the vertical plate is fixedly connected to the buckle, the vertical plate is perpendicular to the buckle, the vertical plate is provided with a pressure plate on the side close to the front strap, the pressure plate is parallel to the vertical plate, a compression spring is fixedly connected between the pressure plate and the vertical plate, the vertical plate is provided with a buckle plate at the end away from the buckle, the buckle plate is parallel to the buckle, the vertical plate protrudes toward the buckle plate at one end close to the buckle plate, the vertical plate is fixedly connected with the vertical shaft at the protruding position close to the buckle plate, the buckle plate is provided with a swivel seat near the vertical shaft direction, the swivel seat is rotatably connected to the swivel shaft, a swivel spring is fixedly connected between the swivel seat and the swivel shaft, the pressure plate is slidably connected between the buckle and the buckle plate, and the elasticity coefficient of the swivel spring is greater than the elasticity coefficient of the compression spring.

4. The precise adjustment and fixing device for tracheotomy according to claim 3, characterized in that: The linkage locking assembly includes a pull wire, and the pressure plate is fixedly connected to a pull wire on one side close to the vertical plate. The pull wire extends into the vertical plate, and the pull wire is slidably connected to the vertical plate. When the vertical plate is bent 180 degrees, the pull wire is slidably connected to the buckle, and the pull wire extends to the adjustment part.

5. The precise adjustment and fixing device for tracheotomy according to claim 4, characterized in that: The adjustment part includes an upper frame, a lower frame and a rotating column, a fixing frame is fixedly connected between the upper frame and the lower frame, the front belt is fixedly connected to the fixing frame, the upper frame and the lower frame, the rotating column is located between the upper frame and the lower frame, both ends of the rear belt are fixedly connected to the rotating column, the fixing frame guides the rear belt to cooperate with the rotating column, a working groove is opened on the upper side of the lower frame, a one-way component is provided in the working groove on the lower side of the rotating column, and the pull wire cooperates with the one-way component.

6. The precise adjustment and fixing device for tracheotomy according to claim 5, characterized in that: The one-way component includes a ratchet, ratchet teeth and a return spring. The ratchet is fixedly connected to the lower side of the rotating column. A ratchet is provided on one side of the ratchet. The ratchet teeth are snap-fitted with the ratchet. The ratchet teeth are rotatably connected to the lower frame. A return spring is fixedly connected to the ratchet teeth. The return spring is fixedly connected to the lower frame. The pull wire passes through the lower frame and is fixedly connected to the ratchet teeth. The elastic coefficient of the compression spring is greater than the elastic coefficient of the return spring.

7. The precise adjustment and fixing device for tracheotomy according to claim 6, characterized in that: A rotating hole is opened in the middle of the upper frame, a rotating shaft is fixedly connected to the upper side of the rotating column, the rotating shaft is rotatably connected in the rotating hole, and a rotating handle is fixedly connected to the upper side of the rotating shaft.

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