Clamping type artificial airway positioning and guiding clamp

Abstract

The invention relates to the technical field of tracheal intubation. The clamping type artificial airway positioning and guiding clamp comprises a supporting plate which is used for being attached to the face of one side of a patient and extends in the transverse direction, a clamping groove extending in the front-back direction is formed in one end of the supporting plate, and an opening of the clamping groove faces the side edge of the supporting plate; the section of clamping groove located on the rear side of the supporting plate forms a tooth supporting section, the section of clamping groove located on the front side of the supporting plate forms a mounting section, and strip-shaped openings extending in the transverse direction are formed in the top face and the bottom face of the mounting section correspondingly. A guide cylinder is arranged in the mounting section, and square inserting rods matched with the strip-shaped holes in width are fixedly arranged on the upper side and the lower side of the guide cylinder correspondingly. The outer end of the inserted pipe body is limited and guided through the guide cylinder, the stability of the pipe body in the insertion process can be improved, and the pipe insertion smoothness is improved; and after the insertion is completed, the guide cylinder can be locked on the basis of the supporting plate, so that the fixing effect after the guide cylinder is locked is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of endotracheal intubation, and in particular to a snap-on artificial airway positioning guide clip. Background Art

[0002] Tracheal intubation includes open tracheal intubation and oronasal tracheal intubation. The former is inserted through an incision made on the front of the patient's neck, while the latter is inserted through the mouth, nose, and throat from the upper respiratory tract into the patient's trachea for intubation. Oral intubation is the most common. During orotracheal intubation, the operator first inserts a laryngoscope into the patient's throat, presses to lift the tongue and exposes the glottis, then inserts the cannula into the patient's trachea from the glottis, inflates the balloon after insertion to close the airway, and then connects the outer end of the cannula to the ventilator for ventilation.

[0003] In clinical work, we found that during the process of tracheal intubation, for patients with glottis stenosis, even if visual assisted positioning can be performed through a video laryngoscope, the operator's proficiency is extremely high, and it is often difficult to insert the tube in one go; the reason is that during intubation, the operator currently relies entirely on the operator to hold the tube in hand for operation, first insert the tube body to the vicinity of the glottis, hold the outer end of the tube in the plane to move the tube body, or rotate the tube body, so that the inner end of the tube body is aligned with the glottis. Then push the tube body vertically inward so that the inner end of the tube body enters the glottis; but due to the patient's glottis stenosis, in the process of vertically pushing the outer end of the tube body, due to the lack of effective limiting and guiding, the outer end has a certain swing space in the plane, and such swinging often causes the tube body to leave the glottis area during the pushing process, especially for patients with glottis stenosis, which easily leads to intubation failure, and requires extremely high proficiency of the operator.

[0004] In addition, after intubation is completed, the existing technology can only use medical tape to bind and fix the tube body, which results in poor stability of the inserted tube body. Not only is there a risk of dislocation, but also due to the swinging and pulling of the tube body, it is easy to cause damage to the tracheal mucosal tissue when the occluding balloon is expanded. Therefore, how to improve the stability and convenience of tube fixation while taking into account the operability of intubation has always been a difficult problem in this field. Summary of the invention

[0005] The object of the present invention is to provide a snap-on artificial airway positioning guide clip which can improve the stability of intubation and is easy to fix.

[0006] To achieve the above-mentioned purpose of the invention, the technical solution adopted by the present invention is a clamping type artificial airway positioning guide clamp, comprising a support plate for attaching to one side of the patient's face and extending in the transverse direction, one end of the support plate is provided with a clamping groove extending in the front-to-back direction, and the opening of the clamping groove faces the side edge of the support plate; a section of the clamping groove located on the rear side of the support plate constitutes a tooth support section, and a section of the clamping groove located on the front side of the support plate constitutes a mounting section, and the top surface and the bottom surface of the mounting section are both provided with a strip-shaped opening extending in the transverse direction;

[0007] A guide cylinder is arranged in the installation section, and square plug rods matching the width of the strip hole are fixedly arranged on the upper and lower sides of the guide cylinder. The plug rods and the strip opening form a sliding fit with damping, and the plug rods are locked with the installation section through a fixing component.

[0008] Preferably, the outer surface of the plug-in rod is provided with a rubber covering layer, and a damped sliding fit is formed with the strip-shaped opening through the rubber covering layer.

[0009] Preferably, a threaded column is provided at the outer end of the plug rod, and a locking cap which is threadably matched with the threaded column is adapted on the threaded column, and a rubber contact layer is provided at one end of the locking cap which faces the clamping groove.

[0010] Preferably, the guide cylinder comprises a stepped cylinder and an adjusting cylinder, the small end of the stepped cylinder faces forward and the large end faces backward, the adjusting cylinder is sleeved outside the small end of the stepped cylinder and is threadedly connected with the small end;

[0011] A plurality of spoon-shaped elastic support strips are centrally symmetrically arranged in the large end of the step cylinder around the axis of the step cylinder, one end of the elastic support strip is connected to the inner side wall of the large end of the step cylinder, and the other end is provided with a hook portion, and a contact ball is arranged in the hook portion, and one side of the contact ball passes through the notch on the hook portion and is exposed outside the hook portion;

[0012] An arc-shaped opening penetrating the step surface is arranged on the step surface of the step cylinder, and a pushing block is arranged on the end of the adjustment cylinder facing the step surface; when the adjustment cylinder rotates, the pushing block can be driven to be inserted between the hook portion and the inner side surface of the large end of the step cylinder, so as to form an inward extrusion of the hook portion of the elastic support strip and realize the clamping of the contact ball in the hook portion.

[0013] Preferably, both end surfaces of the squeezing and pushing block are in the shape of protruding arcs, and the squeezing and pushing block is connected to the adjusting cylinder via a short-circuit rod passing through the arc-shaped opening.

[0014] Preferably, the cross section of the snap-fit ​​groove is U-shaped.

[0015] Preferably, the support plate is in an arc shape that bends backward in the length direction.

[0016] Preferably, it further comprises an elastic fixing belt, and two ends of the elastic fixing belt are fixedly connected to two ends of the supporting plate.

[0017] Preferably, a bite groove is provided on the surface of the tooth support segment, the bite groove gradually widens from the opening side of the tooth support segment toward the other side, and a flexible cushion layer is embedded in the bite groove.

[0018] The beneficial effects of the present invention are mainly reflected in: the outer end of the inserted tube is limited and guided by the guide cylinder, which can improve the stability of the tube during the insertion process and improve the smoothness of the insertion; after the insertion is completed, the guide cylinder can be locked with the support plate as the basis to ensure its fixing effect after locking. Specifically, during the use of the present invention, the patient's mouth is first opened by using a laryngoscope through conventional operations, and then the rear section of the clamping groove is extended into one side of the patient's mouth, the upper and lower teeth bite the tooth support section, and the support plate is placed against the patient's face; then the tube body of the endotracheal tube is passed through the guide cylinder, the inner end of the tube body is extended to the vicinity of the glottis, and then the outer end of the tube body can be moved to align the inner end of the tube body with the glottis of the patient; in the process of moving the outer end of the tube body, since the tube body of the present invention can be supported by the guide cylinder, it has better stability during the moving process, is not easy to lose its position, and is easier to align with the glottis; then the outer end of the tube body is pushed for insertion, and since the outer end is always guided by the guide cylinder during the insertion movement, the force can be better transmitted along the length direction of the tube body, so that the tube body can be more accurately inserted toward the glottis along the predetermined direction; after the insertion is completed, according to conventional operations, the blocking air bag is inflated, and the outer end of the tube body is connected to the ventilator to complete the components of the artificial airway and achieve ventilation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention in a top view;

[0020] Figure 2 for Figure 1 Bottom view of

[0021] Figure 3 for Figure 1 A top view of

[0022] Figure 4 for Figure 2 Enlarged view of part A in the middle;

[0023] Figure 5 It is a structural schematic diagram of the guide cylinder;

[0024] Figure 6 It is a structural schematic diagram of the squeezing and pushing block;

[0025] Figure 7 It is a schematic diagram of the structure of the locking cap. DETAILED DESCRIPTION

[0026] like Figure 1-7 As shown, a snap-on artificial airway positioning guide clip is mainly used in tracheal intubation operations to guide and position the tube body of the tracheal tube to ensure that it is smoothly inserted into the glottis into the human trachea, and to assist in fixing the tube body after the intubation is completed to ensure its fixation stability and prevent it from falling out.

[0027] like Figure 1 As shown in the figure, the present invention comprises a support plate 1 extending in the transverse direction and used for attaching to one side of the patient's face, and one end of the support plate 1 is provided with a clamping groove 2 extending in the front-to-back direction. During use, the present invention is placed on one side of the patient's mouth for use, and the support plate 1 can increase the contact surface with the patient's face to ensure the stability of the overall installation of the present invention, such as Figure 1 As shown in the figure, the support plate 1 is generally arc-shaped, and is an arc-shaped that bends backward in the length direction to achieve close contact with the side face of the mouth, and then the support plate 1 and the face are bonded and fixed with medical tape, which has extremely strong stability. The snap-in groove 2 is set at one end of the support plate 1, as shown in the figure, at the right end of the support plate 1, and can actually be at the left end (actually at the left end after the present invention is inverted). The groove body of the snap-in groove extends in the front-to-back direction, and its cross-section can be U-shaped, square, C-shaped, etc., as shown in the figure. Figure 2 As shown in , the U-shape is the most common, and the opening of the clamping groove 2 faces the side edge of the support plate 1.

[0028] The clamping groove 2 of the present invention, a section of the clamping groove 2 located at the rear side of the support plate 1 constitutes a tooth support section 3, and a section of the clamping groove 2 located at the front side of the support plate 1 constitutes a mounting section 4. As the name implies, the tooth support section 3 is used for the patient's teeth to bite, to support the upper and lower teeth, and then to form support for the oral cavity. The mounting section 4 is used to install the guide assembly, which is specifically the guide cylinder 6 described below. The top and bottom surfaces of the mounting section 4 are both provided with a strip opening 5 extending in the transverse direction, and the strip opening 5 is used for the clamping groove 2 and the guide cylinder 6 to be connected and installed.

[0029] The installation section 4 of the present invention is provided with a guide cylinder 6, which is cylindrical and extends in the front-rear direction as a whole. Figure 2 and 3 As shown in the figure, the upper and lower sides of the guide cylinder 6 are fixedly provided with square plug rods 7 matching the width of the strip hole, and the plug rods 7 and the strip opening 5 form a sliding fit with damping, and the plug rods 7 are locked with the installation section 4 through the fixing assembly. There are many specific forms of the fixing assembly, and its function is to lock the position of the plug rod 7 in the strip opening 5 after the insertion is completed, so as to achieve the locking of the guide cylinder 6 relative to the clamping groove 2. Its specific locking form can be combined with Figure 3 and 7As shown in , the outer end of the plug rod 7 of the present invention is provided with a threaded column 8, and the threaded column 8 is adapted to be equipped with a locking cap 9 that forms a threaded match with the threaded column 8. It can also be regarded as that the main part of the plug rod 7 is a square rod section, and there is also a threaded section at the end, and the locking cap 9 is arranged outside the threaded section. By tightening the locking caps 9 on the two plug rods 7 so that they clamp the clamping groove 2 together, the position of the guide cylinder 6 can be locked. In order to further improve the locking stability, the present invention can also be provided with a rubber contact layer 10 on the end of the locking cap 9 facing the clamping groove 2, and the friction between the rubber contact layer 10 and the outer surface of the clamping groove 2 is improved.

[0030] That is to say, the guide cylinder 6 of the present invention is installed in the strip mouth 5 through the plug rod 7, and it can move left and right and up and down along the strip mouth 5 to meet the adjustment requirements of the tube body position during the intubation process. Of course, since the plug rod 7 needs to slide in the strip mouth 5 to meet the need for adjustment, but the sliding cannot be too loose, otherwise the positioning stability will be completely lost in the non-locked state. For this reason, the plug rod 7 of the present invention forms a sliding fit with damping with the strip mouth 5, that is, a certain force is required to push it to slide. In order to form damping, the present invention can adopt a form in which the outer surface of the plug rod 7 is provided with a rubber cover layer, and the rubber cover layer forms a sliding fit with damping with the strip mouth 5. Of course, it is also feasible to set a rubber cover layer on the edge of the strip mouth 5. Through the setting of the rubber cover layer, it can effectively increase the friction resistance between the plug rod 7 and the strip mouth 5, thereby achieving damped sliding.

[0031] During use of the present invention, the patient's mouth is first opened by a laryngoscope through conventional operations, and then the rear section of the clamping groove 6 (that is, the tooth support section 3) is extended into one side of the patient's mouth, the tooth support section 3 is bitten with the upper and lower teeth, and the support plate 1 is pressed against the patient's face; in order to ensure the stability of the tooth support section 3 when bitten, and to reduce the hardness of the biting position to protect the teeth to a certain extent, a biting groove 20 is provided on the surface of the tooth support section 3, and a flexible cushion layer 21 is embedded in the biting groove 20. The biting groove 20 gradually widens from the open side of the tooth support section 3 to the other side to adapt to the arc-shaped arrangement structure of the teeth.

[0032] After the support plate 1 is placed, the tube body of the endotracheal tube is then passed through the guide cylinder 6, and the inner end of the tube body is extended to the vicinity of the glottis, and then the outer end of the tube body can be moved to align the inner end of the tube body with the glottis of the patient; in the process of moving the outer end of the tube body, since the tube body of the present invention can be supported by the guide cylinder 6, it has better stability during the moving process, is not easy to lose its position, and is easier to align with the glottis; then the outer end of the tube body is pushed for insertion, and since the outer end is always guided by the guide cylinder 6 during the insertion movement, the force can be better transmitted along the length direction of the tube body, so that the tube body can be more accurately inserted toward the glottis along the predetermined direction; after the insertion is completed, according to conventional operations, the blocking air bag is inflated, and the outer end of the tube body is connected to the ventilator to complete the components of the artificial airway and achieve ventilation.

[0033] Since the guide cylinder 6 needs to guide the tube body, the size of its inner cavity should be equal to the outer diameter of the tube body to ensure the stability of the guidance. However, since the intubation tube body is generally a plastic tube, if the inner cavity of the guide cylinder 6 completely matches the tube body, the friction resistance of the intubation tube will increase, which is not conducive to intubation. Therefore, another core point of the present invention lies in the contact structure between the guide cylinder 6 and the tube body. Figure 2 and 4 As shown in the figure, the guide cylinder 6 includes two layers, one of which is a step cylinder 11, and the other is an adjustment cylinder 12 which is sleeved outside the small end of the step cylinder. The small end of the step cylinder 11 faces forward and the large end faces backward, and is threadedly connected with the small end, with 1-2 turns of thread between the two.

[0034] When the guide cylinder 6 contacts the tube body, it does not directly contact the tube body through its inner surface, but Figure 2 and 4 As shown in FIG. 1 , a plurality of spoon-shaped elastic support bars 13 are centrally symmetrically arranged around the axis of the step cylinder 11 in the large end of the step cylinder 11. Figure 2 There are 4 elastic support strips 13, and there may be more in fact. One end of the elastic support strip 13 is connected to the inner wall of the large end of the stepped tube 11, and the other end is provided with a hook portion 14. A cavity for containing the contact ball 15 is formed in the hook portion 14, and a notch is provided on the inward surface of the hook portion 14. The hook portion 14 is provided with a contact ball 15, and one side of the contact ball 15 passes through the notch on the hook portion 14 and is exposed outside the hook portion 14. During the guiding process, the tube body is directly in contact with the contact ball 15. During the movement, since the contact ball 15 can rotate freely, the contact friction of the tube body during the guiding process can be greatly reduced, which not only ensures the accuracy of the guiding, but also ensures the smoothness of the insertion and adjustment of the angle of the tube body.

[0035] After the intubation is completed, in order to lock the tube body in the guide tube 6, as shown in FIG. Figure 4As shown in the figure, the step surface of the step cylinder 11 of the present invention is provided with an arc-shaped opening 16 that penetrates the step surface, and the end of the adjustment cylinder 12 facing the step surface is provided with a pushing block 17, and the structure of the pushing block 17 is as shown in the figure. Figure 6 As shown in the figure, the two end faces of the squeezing and pushing block 17 are in a protruding arc shape, and the squeezing and pushing block 17 is connected to the adjusting cylinder 12 through a short-circuit rod 18 inserted in the arc-shaped opening 16. When locking is required, the adjusting cylinder 12 can drive the squeezing and pushing block 17 to be inserted between the hook portion 14 and the inner side surface of the large end of the stepped cylinder 11 when rotating, thereby driving the hook portion 14 to deflect and bend inward to form an inward squeezing of the hook portion 14 of the elastic support strip 13, thereby clamping the tube body. At the same time, as the hook portion 14 is squeezed, the contact ball 15 inside it is also synchronously clamped in the cavity of the hook portion 14 and cannot rotate anymore, thereby ensuring effective clamping of the tube body.

[0036] During the overall installation process of the present invention, in addition to fixing the support plate 1 with medical tape, the present invention may also include an elastic fixing belt 19, the two ends of which are fixedly connected to the two ends of the support plate 1. The elastic fixing belt 19 can be used to better fix the present invention on the patient's head. The upper and lower distribution of the elastic fixing belt 19 can avoid the patient's mouth to avoid interference with other operations.

Claims

1. A snap-on artificial airway positioning guide clip, characterized in that: The invention comprises a support plate (1) for attaching to one side of a patient's face and extending in a transverse direction, wherein one end of the support plate (1) is provided with a clamping groove (2) extending in a front-to-back direction, and the opening of the clamping groove (2) faces the side edge of the support plate (1); a section of the clamping groove (2) located at the rear side of the support plate (1) constitutes a tooth support section (3), and a section of the clamping groove (2) located at the front side of the support plate (1) constitutes a mounting section (4), and the top surface and the bottom surface of the mounting section (4) are both provided with a strip-shaped opening (5) extending in a transverse direction; A guide cylinder (6) is arranged in the installation section (4), and square plug-in rods (7) matching the width of the strip hole are fixedly arranged on the upper and lower sides of the guide cylinder (6). The plug-in rod (7) and the strip opening (5) form a sliding fit with damping, and the plug-in rod (7) is locked with the installation section (4) through a fixing component.

2. The clip-on artificial airway positioning guide clip according to claim 1, characterized in that: The outer surface of the plug-in rod (7) is provided with a rubber covering layer, and a damped sliding fit is formed with the strip-shaped opening (5) through the rubber covering layer.

3. The clip-on artificial airway positioning guide clip according to claim 2, characterized in that: The outer end of the plug rod (7) is provided with a threaded column (8), the threaded column (8) is equipped with a locking cap (9) which is threadedly matched with the threaded column (8), and the locking cap (9) is provided with a rubber contact layer (10) at one end facing the clamping groove (2).

4. The clip-on artificial airway positioning guide clip according to claim 3, characterized in that: The guide cylinder (6) comprises a stepped cylinder (11) and an adjusting cylinder (12), wherein the small end of the stepped cylinder (11) faces forward and the large end faces backward, and the adjusting cylinder (12) is sleeved outside the small end of the stepped cylinder (11) and is threadedly connected with the small end; A plurality of spoon-shaped elastic support strips (13) are centrally symmetrically arranged in the large end of the step cylinder (11) around the axis of the step cylinder (11), one end of the elastic support strip (13) is connected to the inner side wall of the large end of the step cylinder (11), and the other end is provided with a hook portion (14), and a contact ball (15) is arranged in the hook portion (14), and one side of the contact ball (15) passes through the notch on the hook portion (14) and is exposed outside the hook portion (14); The stepped surface of the step cylinder (11) is provided with an arc-shaped opening (16) penetrating the stepped surface, and the end of the adjustment cylinder (12) facing the stepped surface is provided with a squeezing block (17); when the adjustment cylinder (12) is rotated, the squeezing block (17) can be driven to be inserted between the hook portion (14) and the inner side surface of the large end of the step cylinder (11), so as to form an inward squeezing of the hook portion (14) of the elastic support strip (13), and realize the clamping of the contact ball (15) in the hook portion (14).

5. The clip-on artificial airway positioning guide clip according to claim 4, characterized in that: The two end surfaces of the squeezing and pushing block (17) are in the shape of protruding arcs, and the squeezing and pushing block (17) is connected to the regulating cylinder (12) via a short-circuit rod (18) inserted into the arc-shaped opening (16).

6. The clip-on artificial airway positioning guide clip according to claim 5, characterized in that: The cross section of the clamping groove (2) is U-shaped.

7. The clip-on artificial airway positioning guide clip according to claim 6, characterized in that: The support plate (1) is in an arc shape that bends backwards in the length direction.

8. The clip-on artificial airway positioning guide clip according to claim 7, characterized in that: It also comprises an elastic fixing belt (19), the two ends of which are fixedly connected to the two ends of the support plate (1).

9. The clip-on artificial airway positioning guide clip according to claim 8, characterized in that: The surface of the tooth support segment (3) is provided with a bite groove (20), the bite groove (20) gradually widens from the opening side of the tooth support segment (3) toward the other side, and a flexible cushion layer (21) is embedded in the bite groove (20).

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