Gum-friendly catheter fixing and protecting device

Abstract

The invention belongs to the technical field of catheter fixing devices, and discloses a gingival-friendly catheter fixing and protecting device which comprises an arc-shaped upper supporting groove and an arc-shaped lower supporting groove, the upper supporting groove and the lower supporting groove are connected through an adjusting assembly, and the adjusting assembly is used for adjusting the distance between the upper supporting groove and the lower supporting groove; the upper supporting groove is connected with a first clamping piece, the lower supporting groove is connected with a second clamping piece, and the first clamping piece and the second clamping piece define a clamping area with the adjustable size. The two inner side walls of the upper supporting groove and the two inner side walls of the lower supporting groove are each slidably connected with a plurality of fixing pieces, the fixing pieces on the two inner side walls of the upper supporting groove are in one-to-one correspondence, and the fixing pieces on the two inner side walls of the lower supporting groove are in one-to-one correspondence. The fixing piece is an elastic soft supporting pad; and the upper supporting groove is connected with an upper jaw supporting sheet. The tooth pad solves the problems that an existing tooth pad is prone to causing displacement of a catheter, gingiva of a patient is damaged, and teeth fall off.

Description

Technical Field

[0001] The present invention relates to the technical field of catheter fixing devices, and in particular to a gum-friendly catheter fixing and protecting device. Background Art

[0002] Endotracheal intubation refers to an emergency technique that involves inserting an endotracheal tube into the trachea through the oral or nasal cavity and the glottis. This technique provides optimal conditions for ventilation and oxygenation, maintaining airway patency, and airway suction. It is an important rescue technique for patients with respiratory dysfunction and one of the most widely used and effective means of airway management. When muscle relaxants are used during general anesthesia, this causes the patient's muscles to completely relax, including the respiratory muscles. At this point, the patient will be unable to breathe independently and must be connected to a ventilator through an endotracheal tube to maintain respiratory function. In addition, under general anesthesia, the patient loses their normal swallowing and coughing reflexes, increasing the risk of gastric contents reflux into the lungs. Endotracheal intubation can effectively isolate the esophagus and airway, reducing this risk.

[0003] After endotracheal intubation, the tube must be effectively fixed to prevent accidents; if the endotracheal tube falls off due to improper fixation, it will cause severe suffocation to the patient and may even lead to death; currently hospitals generally use bite pads for fixation, and the design of bite pads usually relies on teeth as a fixing point. However, patients with missing teeth or loose teeth may not be able to effectively fix the endotracheal tube, which can easily cause the tube to shift or slip; and for patients with missing teeth, existing bite pads lack a protection mechanism, and the bite pads may directly press on the gums in the toothless area, causing gum damage, pain and even postoperative infection, especially for elderly patients or patients with periodontal disease, who have poor soft tissue tolerance; in addition, the pressure during endotracheal intubation or intraoperative operations may cause further damage to loose teeth or even cause tooth loss. Summary of the Invention

[0004] The present invention aims to provide a gum-friendly catheter fixing and protection device, which solves the problem that the existing dental pads easily cause the catheter to shift, damage the patient's gums, and cause tooth loss.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A gum-friendly catheter fixing and protection device comprises an arc-shaped upper supporting groove and an arc-shaped lower supporting groove, wherein the upper supporting groove and the lower supporting groove are connected by an adjusting component, and the adjusting component is used to adjust the distance between the upper supporting groove and the lower supporting groove; the upper supporting groove is connected to a first clamping member, and the lower supporting groove is connected to a second clamping member, and the first clamping member and the second clamping member form a clamping area with adjustable size; the two inner side walls of the upper supporting groove and the two inner side walls of the lower supporting groove are both slidably connected to a plurality of fixing members, and the fixing members of the two inner side walls of the upper supporting groove correspond one to one, and the fixing members of the two inner side walls of the lower supporting groove correspond one to one; the fixing member is a soft support pad with elasticity; the upper supporting groove is connected to an upper jaw support plate.

[0007] Furthermore, the adjustment component includes a rack fastened to the lower support groove, the upper support groove is rotatably connected to a rotating shaft, the rotating shaft is fastened to a gear meshing with the rack, and the upper support groove is provided with a limiting component for limiting the rotation of the rotating shaft.

[0008] Furthermore, the end of the rotating shaft close to the upper jaw support piece is connected to a winding drum, the winding drum is connected to a pull rope, the end of the pull rope away from the winding drum is connected to the upper jaw support piece, and the upper jaw support piece is an elastic piece; when the rotating shaft rotates, the pull rope pulls the upper jaw support piece to move away from or closer to the lower support groove.

[0009] Furthermore, the limiting assembly includes a second spring and a limit block, one end of the second spring is connected to the upper support groove, and the other end of the second spring is connected to the limit block, the rotating shaft is provided with a plurality of limit grooves along the circumference that are adapted to the limit block, and the limit block is used to limit the rotation of the rotating shaft; and a sliding handle is connected to one end of the second spring close to the limit block.

[0010] Furthermore, several support components are connected between the upper support groove and the lower support groove, and the support components are retractable structures; the support components include a sleeve, a guide rod and a first spring, the guide rod is slidably connected in the sleeve, the free end of the guide rod is connected to the lower support groove, and the free end of the sleeve is connected to the upper support groove; the first spring is arranged in the sleeve, one end of the first spring is connected to the guide rod, and the other end of the first spring is connected to the sleeve.

[0011] Furthermore, pads are connected to the outer sides of the upper support groove and the lower support groove.

[0012] Furthermore, a first soft support pad is connected to the top of the upper jaw support piece; and a second soft support pad is connected to both the upper support groove and the lower support groove.

[0013] Furthermore, the inner side walls of the upper support groove and the lower support groove are both provided with sliding grooves, the fixing member is connected with a sliding rail, and the sliding rail is slidably connected in the sliding groove; and the cross-sectional shape of the sliding rail and the sliding groove is both "convex" shaped.

[0014] The principle and beneficial effects of the technical solution are:

[0015] 1. A gum-friendly catheter fixing and protection device provided by the present invention comprises an arc-shaped upper supporting groove and an arc-shaped lower supporting groove, wherein the upper supporting groove and the lower supporting groove are connected by an adjusting assembly, and the adjusting assembly is used to support the upper supporting groove and the lower supporting groove and can adjust the distance between the upper supporting groove and the lower supporting groove; the upper supporting groove is connected to a first clamping member, and the lower supporting groove is connected to a second clamping member, and the first clamping member and the second clamping member form a clamping area with adjustable size. When intubation is required, the upper supporting groove and the lower supporting groove are moved away from each other, and the first clamping member and the second clamping member are driven away from each other, so that the clamping area becomes larger, which helps to smoothly carry out the intubation. After the intubation is completed, the upper supporting groove and the lower supporting groove are moved closer to each other, and the first clamping member and the second clamping member are driven closer to each other, so that the clamping area becomes smaller, so that the catheter can be fixed;

[0016] The upper support groove is used to support and wrap the upper teeth and upper gums, and the lower support groove is used to support and wrap the lower teeth and lower gums, which can effectively disperse the fixing pressure of the catheter, reduce local pressure, and relieve the local pressure on the edentulous parts and loose teeth. The upper support groove and the lower support groove are wrapped around the patient's teeth and gums. Through the protective effect of the groove, the upper support groove and the lower support groove can be prevented from contacting the gum surface of the edentulous parts, and the teeth and gums in other parts can be used as support points to effectively fix the catheter and prevent the catheter from loosening. In addition, the upper support groove is connected to the upper jaw support piece. When fixing the catheter, the upper jaw support piece abuts against the patient's upper jaw, further effectively dispersing the pressure and relieving the local pressure on the edentulous parts and loose teeth.

[0017] The two inner side walls of the upper supporting groove and the two inner side walls of the lower supporting groove are slidably connected with a number of fixing parts, and the fixing parts of the two inner side walls of the upper supporting groove correspond to each other, and the fixing parts of the two inner side walls of the lower supporting groove correspond to each other. The fixing parts of the two side walls of the upper supporting groove (or the lower upper supporting groove) are slid to the part where the teeth are missing or the teeth are loose. The fixing parts adopt elastic silicone pads. For the part where the teeth are missing, when the medical staff performs intubation or fixes the catheter, the fixing parts are soft and elastic, which can play a buffering role and reduce the pressure force received by the part where the teeth are missing, which can better It can better protect the gums, and the elastic fixings can adapt to teeth and gums of different sizes, with a wide adaptability. For patients with loose teeth, the fixings on the two side walls can fix the loose teeth to avoid further shaking of the loose teeth during operation, thereby providing protection for the loose teeth and preventing them from being damaged or falling off. In addition, the fixings use elastic silicone pads. On the one hand, the soft texture of the fixings can relieve the pressure. On the other hand, the elasticity of the fixings can provide a buffering effect and clamping and tightening force, and can also be suitable for teeth of different sizes.

[0018] 2. A gum-friendly catheter fixing and protection device provided by the present invention comprises a rack, a rotating shaft and a gear, wherein one end of the rotating shaft close to the upper jaw support piece is connected to a winding drum, and the winding drum is connected to a pull rope, and the other end of the pull rope away from the rotating shaft is connected to the upper jaw support piece, and the upper jaw support piece is an elastic piece. The rotating shaft rotates clockwise, driving the rack to move in a direction away from the upper support groove, thereby driving the lower support groove to move in a direction away from the upper support groove, so that the clamping area between the first clamping piece and the second clamping piece becomes larger. At the same time, the rotating shaft drives the winding drum to reel in the pull rope, and the pull rope pulls the upper jaw support piece to move in a direction close to the lower support groove, so that the upper jaw support piece can be retracted to facilitate wearing of the device and prevent the upper jaw support piece from damaging the patient. After intubation is completed, the rotating shaft is rotated counterclockwise to reduce the clamping area to fix the catheter. At the same time, the rotating shaft drives the winding drum to release the pull rope, so that the pull rope rotates toward the patient's upper jaw to abut against the upper jaw, disperse the catheter fixing force, and reduce the pressure on the patient's missing teeth or loose teeth. The upper supporting groove is provided with a limiting component that limits the rotation of the rotating shaft. The limiting component includes a second spring, a limiting block and a sliding handle. When rotation is required, the sliding handle is pulled upward to compress the second spring and drive the limiting block to move upward and out of the limiting groove, separating the upper supporting groove and the lower supporting groove to a preset distance and one of the limiting grooves is facing the blocking block. The sliding handle is released, and the elastic force of the second spring clamps the limiting block into the limiting groove to fix the rotating shaft.

[0019] 3. The present invention provides a gum-friendly catheter fixing and protection device, in which a number of support components are connected between the upper support groove and the lower support groove. The support component is a retractable structure that can increase the supporting force, and the support component includes a sleeve, a guide rod and a first spring, which can extend or shorten with the movement of the upper support groove and the lower support groove. Pads are connected to the outside of the upper support groove and the outside of the lower support groove, which can support the patient's lips, prevent the lips from sagging and moving or squeezing the catheter, and further increase the fixation of the catheter. A first soft support pad is connected to the top of the upper jaw support plate, and a second soft support pad is connected to the upper support groove and the lower support groove, which can protect the patient's teeth or gums and reduce local pressure. The inner walls of the upper and lower support grooves are both equipped with sliding grooves, and the fixings are connected to sliding rails, which are slidably connected within the sliding grooves. The cross-sectional shapes of the sliding rails and the sliding grooves are both "convex", which can protect any area with missing teeth or loose teeth and prevent the fixings from falling out. In addition, after the elastic silicone fixings come into contact with loose teeth or missing teeth and gums, the side of the fixings facing away from the teeth abuts against the second soft support pad, which can limit the fixings from further movement during the doctor's operation. The upper and lower support grooves can be made of thermosetting materials, which have a stable supporting force; the upper and lower support grooves can be made of thermoplastic materials, which can be slightly adjusted in shape after being heated and softened to increase adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of a gum-friendly catheter fixing and protection device of the present invention. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the structure of a gum-friendly catheter fixing and protection device of the present invention. Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the structure of a gum-friendly catheter fixing and protection device of the present invention. Figure 3 ;

[0023] Figure 4 A top view of a gum-friendly catheter fixing and protection device according to the present invention;

[0024] Figure 5 for Figure 4 Partial cross-sectional view of AA;

[0025] Figure 6 for Figure 4 Cross-sectional view of the BB.

[0026] The names of the corresponding symbols in the accompanying drawings are:

[0027] 1. Upper support groove; 2. Lower support groove; 3. Pad; 4. Second soft support pad; 5. First clamping member; 6. Second clamping member; 7. Slide groove; 8. Fixing member; 9. Slide rail; 10. Upper jaw support plate; 11. First soft support pad; 12. Rack; 13. Rotating shaft; 14. Limiting groove; 15. Gear; 16. Winding drum; 17. Pull rope; 18. Connecting plate; 19. Strip groove; 20. Second spring; 21. Limiting block; 22. Sliding handle; 23. Sleeve; 24. Guide rod; 25. First spring. DETAILED DESCRIPTION

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0029] like Figures 1 to 6 As shown, a gum-friendly catheter fixing and protection device includes an arc-shaped upper supporting groove 1 and an arc-shaped lower supporting groove 2, and a second soft supporting pad 4 is connected to the upper supporting groove 1 and the lower supporting groove 2, and the two inner side walls of the upper supporting groove 1 and the two inner side walls of the lower supporting groove 2 are slidably connected with a number of fixing parts 8, the fixing parts 8 are elastic soft support pads, and the fixing parts 8 of the two inner side walls of the upper supporting groove 1 correspond one to one, and the fixing parts 8 of the two inner side walls of the lower supporting groove 2 correspond one to one; specifically, the inner side walls of the upper supporting groove 1 and the inner side walls of the lower supporting groove 2 are both provided with a slide groove 7, the fixing part 8 is connected with a slide rail 9, and the slide rail 9 is slidably connected to the slide groove 7; and the cross-sectional shape of the slide rail 9 and the slide groove 7 are both "convex" shaped; the upper supporting groove 1 is connected to the upper jaw support piece 10, and the top of the upper jaw support piece 10 is connected to the first soft support pad 11.

[0030] The outer side of the upper support groove 1 and the outer side of the lower support groove 2 are connected to a pad 3, and the pad 3 is integrally formed with the upper support groove 1 or the lower support groove 2, or is detachably connected by bolts; the upper support groove 1 and the lower support groove 2 are connected by an adjustment assembly; the adjustment assembly includes a rack 12 fastened to the pad 3 of the lower support groove 2, the pad 3 of the upper support groove 1 is rotatably connected to the rotating shaft 13 through a bearing, the rotating shaft 13 is fastened to a gear 15 meshing with the rack 12, and the end of the rotating shaft 13 close to the upper jaw support piece 10 is connected to a winding drum 16, and the winding drum 16 is connected to a pull rope 17, and the pull rope 17 is away from the rotating shaft 13. One end is connected to the upper jaw support piece 10, and the upper jaw support piece 10 is an elastic piece; when the rotating shaft 13 rotates clockwise, the winding drum 16 reels the pull rope 17, and the pull rope 17 pulls the upper jaw support piece 10 toward the direction close to the lower support groove 2; the pad 3 of the upper support groove 1 is connected to the first clamping member 5, and the pad 3 of the lower support groove 2 is connected to the second clamping member 6. The first clamping member 5 and the second clamping member 6 form a clamping area with adjustable size. Specifically, the first clamping member 5 is provided with an arcuate through groove, and the second clamping member 6 is provided with an arcuate through groove at the corresponding position. The two arcuate through grooves form a circular clamping area adapted to the catheter.

[0031] The pad 3 of the upper support groove 1 is provided with a limiting component that limits the rotation of the rotating shaft 13. The limiting component includes a second spring 20 and a limit block 21. The pad 3 of the upper support groove 1 is connected to the connecting plate 18. The connecting plate 18 is provided with a strip groove 19 extending radially along the rotating shaft 13. The second spring 20 is located in the strip groove 19. One end of the second spring 20 is connected to the strip groove 19, and the other end of the second spring 20 is connected to the limit block 21. The rotating shaft 13 is provided with four limit grooves 14 that are adapted to the limit block 21 at evenly spaced intervals along the circumference. When the limit block 21 is engaged in the limit groove 14, the limit block 21 is used to limit the rotation of the rotating shaft 13; and the end of the second spring 20 close to the limit block 21 is connected to a sliding handle 22.

[0032] Two groups of support components are connected between the upper support groove 1 and the lower support groove 2, and the support components are retractable structures; the support components include a sleeve 23, a guide rod 24 and a first spring 25, the guide rod 24 is slidably connected in the sleeve 23, the free end of the guide rod 24 is connected to the lower support groove 2, and the free end of the sleeve 23 is connected to the upper support groove 1; the first spring 25 is arranged in the sleeve 23, one end of the first spring 25 is connected to the guide rod 24, and the other end of the first spring 25 is connected to the sleeve 23.

[0033] The specific implementation process is as follows:

[0034] When using this device, the sliding handle 22 is pulled upward to compress the second spring 20, and the limit block 21 is driven to move upward to disengage from the limit slot 14, and the rotating shaft 13 is rotated clockwise to drive the rack 12 to move in the direction away from the upper support slot 1, thereby driving the lower support slot 2 to move in the direction away from the upper support slot 1, so that the clamping area between the first clamping member 5 and the second clamping member 6 becomes larger. At the same time, the rotating shaft 13 drives the winding drum 16 to reel in the pull rope 17, and the pull rope 17 pulls the upper jaw support piece 10 toward the direction close to the lower support slot 2, which can retract the upper jaw support piece 10 and separate the upper support slot 1 and the lower support slot. 2 are separated to a preset distance, and one of the limit grooves 14 is facing the card block. The sliding handle 22 is released, and the elastic force of the second spring 20 clamps the limit block 21 into the limit groove 14, fixing the rotating shaft 13, and the device is worn in the patient's mouth. After the intubation is completed, the sliding handle 22 is pulled upward to compress the second spring 20 and drive the limit block 21 to move up and out of the limit groove 14. The rotating shaft 13 is rotated counterclockwise to reduce the clamping area to fix the catheter. At the same time, the rotating shaft 13 drives the winding drum 16 to release the drawstring 17, causing the drawstring 17 to rotate toward the patient's upper jaw to abut against the upper jaw and disperse the catheter fixing force.

[0035] Among them, the present invention provides a gum-friendly catheter fixing and protection device, in which the adjustment component is used to support the upper support groove 1 and the lower support groove 2, and can adjust the distance between the upper support groove 1 and the lower support groove 2; when intubation is required, the upper support groove 1 and the lower support groove 2 are moved away from each other, and the first clamping member 5 and the second clamping member 6 are driven away from each other, so that the clamping area becomes larger, which helps to smoothly carry out the intubation; after the intubation is completed, the upper support groove 1 and the lower support groove 2 are moved closer to each other, and the first clamping member 5 and the second clamping member 6 are driven closer to each other, so that the clamping area becomes smaller, so that the catheter can be fixed;

[0036] The upper support groove 1 is used to support and wrap the upper teeth and upper gums, and the lower support groove 2 is used to support and wrap the lower teeth and lower gums, which can effectively disperse the fixing pressure of the catheter, reduce local pressure, and relieve the local pressure on the missing teeth and loose teeth. The upper support groove 1 and the lower support groove 2 are wrapped and sleeved on the patient's teeth and gums. Through the protective effect of the grooves, the upper support groove 1 and the lower support groove 2 can be prevented from contacting the gum surface of the missing teeth. The teeth and gums in other parts can be used as support points to effectively fix the catheter and prevent the catheter from loosening. In addition, the upper support groove 1 is connected to the upper jaw support piece 10. When fixing the catheter, the upper jaw support piece 10 abuts against the patient's upper jaw, further effectively dispersing the pressure and relieving the local pressure on the missing teeth and loose teeth.

[0037] The fixing parts 8 on the two side walls of the upper supporting groove 1 (or the lower supporting groove 2) are slid to the part where the teeth are missing or the teeth are loose. The fixing parts 8 are made of elastic silicone pads. For the part where the teeth are missing, when the medical staff performs intubation or fixes the catheter, the fixing parts 8 are soft and elastic, which can play a buffering role and reduce the pressure received by the part where the teeth are missing, so as to better protect the gums. In addition, the elastic fixing parts 8 can also adapt to teeth and gums of different sizes and have a wide adaptability. For patients with loose teeth, the fixing parts 8 on the two side walls can fix the loose teeth to avoid further shaking of the loose teeth during operation, thereby providing protection for the loose teeth and preventing the teeth from being damaged or falling off. In addition, the fixing parts 8 are made of elastic silicone pads. On the one hand, the fixing parts 8 are soft in texture and can relieve the pressure. On the other hand, the elasticity of the fixing parts 8 can provide a buffering effect and can provide clamping and tightening force, and can also be suitable for teeth of different sizes.

[0038] The adjustment component includes a rack 12, a rotating shaft 13, a gear 15 and a winding drum 16. The rotating shaft 13 rotates clockwise to enlarge the clamping area between the first clamping member 5 and the second clamping member 6. The rotating shaft 13 can also drive the winding drum 16 to reel the pull rope 17. The pull rope 17 pulls the upper jaw support piece 10 toward the direction close to the lower support groove 2, and can retract the upper jaw support piece 10 to facilitate wearing the device and prevent the upper jaw support piece 10 from damaging the patient. After the intubation is completed, the rotating shaft 13 is rotated counterclockwise to reduce the clamping area to fix the catheter. At the same time, the rotating shaft 13 drives the winding drum 16 to release the pull rope 17, so that the pull rope 17 rotates toward the patient's upper jaw to abut against the upper jaw, disperse the catheter fixing force, and reduce the pressure on the patient's missing teeth or loose teeth.

[0039] The pad 3 can support the patient's lips to prevent the lips from sagging and moving or squeezing the catheter, further increasing the fixation of the catheter. The first soft support pad 11 and the second soft support pad 4 can protect the patient's teeth or gums and reduce local pressure. The inner wall of the upper support groove 1 and the lower support groove 2 are slidably connected by the slide groove 7 and the slide rail 9, which can protect any missing teeth or loose teeth and prevent the fixing part 8 from falling out. In addition, after the fixing part 8 made of elastic silicone material contacts the loose teeth or missing teeth and gums, the side of the fixing part 8 facing away from the teeth abuts against the second soft support pad 4, which can limit the fixing part 8 from continuing to move during the doctor's operation. The upper support groove 1 and the lower support groove 2 can be made of thermosetting material with a stable supporting force; the upper support groove 1 and the lower support groove 2 can be made of thermoplastic material, and the shape of the upper support groove 1 and the lower support groove 2 can be slightly adjusted after being heated and softened to increase adaptability.

[0040] The above is only an embodiment of the present invention, and common knowledge such as the specific technical solutions or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the description can be used to interpret the content of the claims.

Claims

1. A gum-friendly catheter fixing and protection device, characterized in that: The invention comprises an arc-shaped upper support groove (1) and an arc-shaped lower support groove (2), wherein the upper support groove (1) and the lower support groove (2) are connected via an adjusting assembly, and the adjusting assembly is used to adjust the distance between the upper support groove (1) and the lower support groove (2); the upper support groove (1) is connected to a first clamping member (5), and the lower support groove (2) is connected to a second clamping member (6), and the first clamping member (5) and the second clamping member (6) form a clamping area with adjustable size; the two inner side walls of the upper support groove (1) and the two inner side walls of the lower support groove (2) are both slidably connected to a plurality of fixing members (8), and the fixing members (8) of the two inner side walls of the upper support groove (1) correspond one to one, and the fixing members (8) of the two inner side walls of the lower support groove (2) correspond one to one; the fixing member (8) is a soft support pad with elasticity; the upper support groove (1) is connected to an upper jaw support plate (10).

2. The gum-friendly catheter fixing and protection device according to claim 1, characterized in that: The adjustment assembly comprises a rack (12) fastened to the lower support groove (2); the upper support groove (1) is rotatably connected to a rotating shaft (13); the rotating shaft (13) is fastened to a gear (15) meshing with the rack (12); and the upper support groove (1) is provided with a limiting assembly for limiting the rotation of the rotating shaft (13).

3. The gum-friendly catheter fixing and protection device according to claim 2, characterized in that: The end of the rotating shaft (13) close to the upper jaw support piece (10) is connected to a winding drum (16), and the winding drum (16) is connected to a pull rope (17). The end of the pull rope (17) away from the winding drum (16) is connected to the upper jaw support piece (10), and the upper jaw support piece (10) is an elastic piece; when the rotating shaft (13) rotates, the pull rope (17) pulls the upper jaw support piece (10) to move in a direction away from or close to the lower support groove (2).

4. The gum-friendly catheter fixing and protection device according to claim 2, characterized in that: The limiting assembly includes a second spring (20) and a limiting block (21), one end of the second spring (20) is connected to the upper supporting groove (1), and the other end of the second spring (20) is connected to the limiting block (21), the rotating shaft (13) is provided with a plurality of limiting grooves (14) adapted to the limiting block (21) along the circumference, and the limiting block (21) is used to limit the rotation of the rotating shaft (13); and the end of the second spring (20) close to the limiting block (21) is connected to a sliding handle (22).

5. The gum-friendly catheter fixing and protection device according to claim 1, characterized in that: A plurality of support assemblies are connected between the upper support groove (1) and the lower support groove (2), and the support assemblies are telescopic structures; the support assemblies include a sleeve (23), a guide rod (24) and a first spring (25); the guide rod (24) is slidably connected in the sleeve (23), the free end of the guide rod (24) is connected to the lower support groove (2), and the free end of the sleeve (23) is connected to the upper support groove (1); the first spring (25) is arranged in the sleeve (23), one end of the first spring (25) is connected to the guide rod (24), and the other end of the first spring (25) is connected to the sleeve (23).

6. The gum-friendly catheter fixing and protection device according to claim 1, characterized in that: The outer side of the upper support groove (1) and the outer side of the lower support groove (2) are both connected with pads (3).

7. The gum-friendly catheter fixing and protection device according to claim 1, characterized in that: The top of the upper jaw support piece (10) is connected to a first soft support pad (11); and the upper support groove (1) and the lower support groove (2) are both connected to second soft support pads (4).

8. The gum-friendly catheter fixing and protecting device according to claim 1, characterized in that: The inner side wall of the upper supporting groove (1) and the inner side wall of the lower supporting groove (2) are both provided with a slide groove (7); the fixing member (8) is connected with a slide rail (9); the slide rail (9) is slidably connected in the slide groove (7); and the cross-sectional shape of the slide rail (9) and the slide groove (7) are both "convex" shaped.

Images