Catheter clamping device

Abstract

The invention relates to the technical field of catheter fixing, in particular to a catheter clamping device which comprises a mounting frame, a clamping assembly mounted on the mounting frame and used for fixing a catheter and a head fixing assembly used for fixing the head of a patient, the clamping assembly comprises two first sliding rods, and a top block is arranged at the end, away from a right-angle clamping block, of a telescopic piece. An anti-pressing piece is mounted between the arc-shaped block and the top block; the head fixing assembly comprises two second sliding rods, and the bottoms of the second sliding rods are provided with head clamping blocks through a plurality of connecting rods. The distance between the ejector block and the guide pipe can be adjusted through a gear, a right-angle rack block and a supporting rod which are arranged in the telescopic piece so that the guide pipes of different sizes can be clamped, and a bidirectional lead screw and an elastic piece which are arranged in the anti-pressing piece can prevent the guide pipe from being flattened and can also adjust the extrusion force of the elastic piece; meanwhile, a head clamping block and an air bag arranged in the head clamping assembly can fix the head of the patient.

Description

Technical Field

[0001] The present invention relates to a catheter clamping device. Background Art

[0002] In the process of gastrointestinal care, various catheters are often used, such as gastric tubes, intestinal tubes, etc. The stable placement of these catheters is crucial for the treatment and recovery of patients. However, the existing catheter fixation methods have some shortcomings, especially in some special cases, such as when the patient is unconscious or the head is prone to shaking, the stable placement of the catheter becomes more difficult.

[0003] Application number CN202323195483.9 discloses a catheter fixing device for gastrointestinal surgery, including a strap and a fixing box, wherein a clamping mechanism is arranged inside the fixing box; the clamping mechanism includes a knob, a first rotating plate, a belt, a second rotating plate, a bidirectional screw and a clamping rod, wherein the two bidirectional screws are respectively rotatably connected to the two sides of the top of the fixing box, the two second rotating plates are respectively fixedly connected to one side of the two bidirectional screws, the two sides of the middle of the two bidirectional screws are respectively threadedly connected to the two sides of the middle of the two clamping rods, the knob is rotatably connected to the top of the middle of the front side of the fixing box, and the first rotating plate is fixedly connected to one end of the knob. The first rotating plate can be driven to rotate by rotating the knob, and the catheter can be clamped by the cooperation of the belt, the second rotating plate and the bidirectional screw, so as to avoid the situation that the catheter is fixed by tape or suture, thereby falling off.

[0004] It can be seen that when clamping the catheter during gastrointestinal care, catheters of different sizes cannot be clamped and fixed according to different catheter requirements. When clamping the catheter, it cannot prevent the catheter from being flattened, thereby causing catheter blockage and damage. At the same time, when the patient's head is prone to shaking, stable placement of the catheter becomes more difficult.

[0005] In view of this, we propose a catheter clamping device that can be used for gastrointestinal care. Summary of the invention

[0006] In order to overcome the defects in the prior art, the object of the present invention is to provide a catheter clamping device to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides a catheter clamping device, comprising a mounting frame and a clamping assembly mounted on the mounting frame for fixing the catheter and a head fixing assembly for fixing the patient's head.

[0008] The clamping assembly comprises two first slide bars slidably connected to the mounting frame, two opposite right-angle clamping blocks are mounted on the two first slide bars, a telescopic member is mounted on the inner side wall of the right-angle side of the right-angle clamping block, a top block is arranged at one end of the telescopic member away from the right-angle clamping block, an arc block is movably inserted at one end of the top block away from the telescopic member, and an anti-pressure member is mounted between the arc block and the top block;

[0009] The telescopic member comprises two right-angle rack blocks which slide relatively inside the right-angle side of the right-angle clamp block, a gear is rotatably connected between the two right-angle rack blocks, the gear and the rack sides of the two right-angle rack blocks are mutually meshed, a support rod is hinged on the horizontal right-angle side of the right-angle rack block, and the middle parts of the two support rods are hinged through a hinge column;

[0010] The anti-pressure member includes a bidirectional screw rod rotatably connected to the top block, and a spring sheet is provided on the bidirectional screw rod, and the two ends of the spring sheet are respectively threadedly connected to the threaded sections at the two ends of the bidirectional screw rod, and the spring sheet is curved and the middle part thereof abuts against the middle part of the back side of the arc block;

[0011] The head fixing assembly comprises two second sliding bars slidably connected to the mounting frame, a head clamping block is arranged at the bottom of the second sliding bar through a plurality of connecting bars, and an air bag is installed on the head clamping block.

[0012] As a further improvement of the technical solution, first through holes matching the size of the mounting frame rod body are provided at both ends of the first slide rod, first fastening bolts for fixing are provided at the top ends of the first through holes at both ends of the first slide rod, and a mounting seat for installing the right-angle clamp is provided in the middle of the first slide rod.

[0013] As a further improvement of the present technical solution, an adjustment cavity for accommodating the right-angle rack block and the gear is opened inside the right-angle side of the right-angle clamp block, a tooth block matching the gear is provided on the rack side of the right-angle rack block, a fixed block is welded and fixed on the horizontal side of the right-angle rack block, and the end of the support rod is hinged to the fixed block through the hinge column.

[0014] As a further improvement of the technical solution, a straight rod is welded and fixed at the center of the gear side wall, and the other end of the straight rod extends out of the right-angle clamp block and is welded and fixed with a first handle.

[0015] As a further improvement of the present technical solution, a long strip block is welded and fixed to the side wall of the top block near the support rod along the central axis, and a long strip hole is opened on the long strip block, one end of which is slidably connected to the long strip block, and a hinge seat is welded and fixed to the side wall of the top block under the long strip block, and one end of the other support rod is hinged to the hinge seat. When the two right-angle rack blocks slide relative to each other along the adjusting cavity to the farthest distance, the end of the support rod on the long strip block slides to the uppermost end of the long strip hole; when the two right-angle rack blocks slide toward each other along the adjusting cavity to the shortest distance, the end of the support rod on the long strip block slides to the lowermost end of the long strip hole.

[0016] As a further improvement of the technical solution, the top block is welded and fixed with sockets at the four corners of the side wall close to the arc block, and the back of the arc block is welded and fixed with plug rods whose number is equal to and whose positions correspond to the sockets, and the top surface of the socket is provided with socket holes that are adapted to the size of the plug rods.

[0017] As a further improvement of the technical solution, a T-shaped groove is opened in the top block to accommodate the rotation of the bidirectional screw rod, a limiting ring is welded and fixed on the upper end of the side wall of the bidirectional screw rod, and a second handle is integrally formed after the top end of the bidirectional screw rod extends out of the top block.

[0018] As a further improvement of the technical solution, T-shaped sliders adapted to the size of the T-shaped slide groove are integrally formed at both ends of the spring sheet, and threaded holes adapted to the bidirectional screw rod are provided on the T-shaped sliders. When the bidirectional screw rod rotates, the T-shaped sliders at both ends of the spring sheet slide toward each other.

[0019] As a further improvement of the technical solution, second through holes matching the size of the mounting frame rod body are provided at both ends of the second slide rod, and second fastening bolts for fixing are provided at the top ends of the second through holes at both ends of the second slide rod.

[0020] As a further improvement of the technical solution, a groove for installing the airbag is provided in the middle of the head clamp, an air hole connected to the airbag is provided in the middle of the groove, and a plurality of soft bumps are adhered and fixed to the outer side wall of the airbag.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The catheter clamping device adjusts the right-angle clamping block to a suitable position by sliding the first sliding rod, so that the catheter is located between the two right-angle clamping blocks, and rotates the first handle to rotate the gear so that the two right-angle rack blocks slide toward each other, thereby increasing the angle between the support rod and the horizontal plane, and the top block moves toward the catheter, so as to be suitable for clamping catheters of different sizes.

[0023] 2. The catheter clamping device controls the pressing force on the catheter when the arc block abuts against the catheter through the plug-in seat, the plug-in rod and the spring sheet. At the same time, the distance between the two ends of the spring sheet is adjusted by rotating the second handle, and then the initial deformation degree of the spring sheet is adjusted to control the squeezing force on different catheters to prevent the catheter from being flattened and damaged.

[0024] 3. The catheter clamping device adjusts the head clamp to the appropriate position on both sides of the patient's head by sliding the second sliding rod, inflates the airbag, and makes the airbag abut against both sides of the patient's head to fix the patient's head, thereby preventing the catheter from being unstable due to shaking of the patient's head. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the various components in the figures are only schematic, used to help understand the present invention, and are not specifically limited to the shapes and proportional dimensions of the various components of the present invention. Those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to the teachings of the present invention.

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is an exploded view of the overall structure of the present invention;

[0028] Figure 3 An exploded view of the clamping assembly structure of the present invention;

[0029] Figure 4 It is an exploded view of the telescopic member structure of the present invention;

[0030] Figure 5 This is one of the schematic diagrams of the top block structure of the present invention;

[0031] Figure 6 This is the second schematic diagram of the top block structure of the present invention;

[0032] Figure 7 An exploded view of the anti-pressure piece structure of the present invention;

[0033] Figure 8 It is a schematic diagram of the arc block structure of the present invention;

[0034] Fig. 9 It is an exploded view of the head fixing assembly structure of the present invention;

[0035] Fig.10 It is a cross-sectional view of the right-angle clamp structure of the present invention;

[0036] Fig.11It is a cross-sectional view of the top block structure of the present invention;

[0037] The meaning of each number in the figure is:

[0038] 1. Mounting frame; 11. Handrail;

[0039] 2. Clamping assembly; 21. First slide bar; 211. First through hole; 212. Mounting seat; 22. Right-angle clamping block; 221. Adjusting chamber; 23. Telescopic member; 231. Right-angle rack block; 2311. Tooth block; 2312. Fixed block; 232. Gear; 233. Straight rod; 2331. First handle; 234. Support rod; 235. Articulated column; 24. Top block; 241. Long strip block; 2411. Long strip hole; 242. Articulated seat; 243. T-shaped slide groove; 244. Plug seat; 2441. Plug hole; 25. Anti-pressure member; 251. Bidirectional screw rod; 2511. Limiting ring; 2512. Second handle; 252. Shrapnel; 2521. T-shaped slide block; 2522. Threaded hole; 26. Arc block; 261. Plug rod; 27. First fastening bolt;

[0040] 3. Head fixing assembly; 31. Second sliding rod; 311. Second through hole; 32. Connecting rod; 33. Head clamping block; 331. Groove; 332. Air hole; 34. Air bag; 341. Soft protrusion; 35. Second fastening bolt. DETAILED DESCRIPTION

[0041] The details of the present invention can be more clearly understood by combining the accompanying drawings with the description of the specific embodiments of the present invention. However, the specific embodiments of the present invention described herein are only used for the purpose of explaining the present invention and cannot be understood as limiting the present invention in any way. Under the guidance of the present invention, technicians can conceive of any possible variations based on the present invention, which should be regarded as falling within the scope of the present invention. The terms "installation" and "connection" should be understood in a broad sense, which can be directly connected or indirectly connected through an intermediate medium.

[0042] The terms "central axis", "vertical", "horizontal", "front", "back", "up", "down", "left", "right", "top", "bottom", "inside", "outside" and the like used herein to indicate positions or positional relationships are based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, in the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0043] See also Figure 1-Figure 11As shown, the present invention provides a catheter clamping device, including a catheter clamping device for gastrointestinal care, including a mounting frame 1 and a clamping assembly 2 for fixing the catheter and a head fixing assembly 3 for fixing the patient's head mounted on the mounting frame 1.

[0044] The clamping assembly 2 includes two first slide bars 21 slidably connected to the mounting frame 1, two opposite right-angle clamping blocks 22 are installed on the two first slide bars 21, a telescopic member 23 is installed on the inner side wall of the right-angle side of the right-angle clamping block 22, a top block 24 is provided at one end of the telescopic member 23 away from the right-angle clamping block 22, an arc block 26 is movably inserted at one end of the top block 24 away from the telescopic member 23, and an anti-pressure member 25 is installed between the arc block 26 and the top block 24; the telescopic member 23 can clamp and fix catheters of different sizes, and the anti-pressure member 25 can effectively avoid flattening the catheter, and can also adjust the clamping strength of different catheters

[0045] The telescopic member 23 includes two right-angle rack blocks 231 that slide relatively inside the right-angle side of the right-angle clamping block 22. A gear 232 is rotatably connected between the two right-angle rack blocks 231. The gear 232 and the rack sides of the two right-angle rack blocks 231 are meshed with each other. A support rod 234 is hinged on the horizontal right-angle side of the right-angle rack block 231. The middle parts of the two support rods 234 are hinged through a hinge column 235. The gear 232 rotates to drive the two right-angle rack blocks 231 to slide toward each other, thereby increasing the angle between the support rod 234 and the horizontal plane, so that the telescopic member 23 extends outward.

[0046] The anti-pressure member 25 includes a bidirectional screw rod 251 rotatably connected to the top block 24, and a spring sheet 252 is provided on the bidirectional screw rod 251. The two ends of the spring sheet 252 are respectively threadedly connected to the threaded sections at the two ends of the bidirectional screw rod 251. The spring sheet 252 is curved and the middle part thereof abuts against the middle part of the back side of the arc block 26. The two ends of the spring sheet 252 are driven to move toward each other by rotating the bidirectional screw rod 251, thereby adjusting the deformation degree of the spring sheet 252, thereby adjusting the squeezing force of the arc block 26 on the catheter.

[0047] The head fixing assembly 3 includes two second slide bars 31 slidably connected to the mounting frame 1. A head clamp 33 is provided at the bottom of the second slide bar 31 through a plurality of connecting rods 32. An airbag 34 is installed on the head clamp 33. The airbag 34 is inflated to fix both sides of the patient's head to prevent the patient's head from shaking.

[0048] Specifically, first through holes 211 that are compatible with the size of the rod body of the mounting frame 1 are provided at both ends of the first slide bar 21, and first fastening bolts 27 for fixing are provided at the top of the first through holes 211 at both ends of the first slide bar 21. A mounting seat 212 for installing the right-angle clamp 22 is provided in the middle of the first slide bar 21. The spacing between the two right-angle clamps 22 can be adjusted by sliding the first slide bar 21, and the distance can be quickly adjusted to fix the catheter. The mounting seat 212 facilitates the installation of the right-angle clamp 22.

[0049] Furthermore, an adjustment cavity 221 for accommodating a right-angled rack block 231 and a gear 232 is provided inside the right-angled side of the right-angled clamping block 22, and a gear block 2311 adapted to the gear 232 is provided on the rack side of the right-angled rack block 231. The gear 232 is meshed with the right-angled rack block 231, so that the two right-angled rack blocks 231 can move relative to each other as the gear 232 rotates; a fixed block 2312 is welded and fixed on the horizontal side of the right-angled rack block 231, and the end of the support rod 234 is hinged to the fixed block 2312 through a hinge column 235, and the support rod 234 is hinged to the fixed block 2312, so that when the two right-angled rack blocks 231 move toward each other, the angle between the support rod 234 and the horizontal plane changes accordingly.

[0050] Specifically, a straight rod 233 is welded and fixed at the center of the side wall of the gear 232, and the other end of the straight rod 233 extends out of the right-angle clamp block 22 and is welded and fixed with a first handle 2331. The straight rod 233 is rotated by the first handle 2331, thereby driving the gear 232 to rotate.

[0051] In addition, a long strip block 241 is welded and fixed to the side wall of the top block 24 near the support rod 234 along the central axis, and a long strip hole 2411 is opened on the long strip block 241. One end of one of the support rods 234 is slidably connected to the long strip block 241. A hinge seat 242 is welded and fixed to the side wall of the top block 24 below the long strip block 241. One end of the other support rod 234 is hinged to the hinge seat 242. The long strip hole 2411 makes the support rod 234 change along the long strip hole 2411 when the angle between the support rod 234 and the horizontal plane changes accordingly. 411 slides back and forth; when the two right-angle rack blocks 231 slide relative to each other along the adjusting cavity 221 to the farthest distance apart, the end of the support rod 234 on the long block 241 slides to the uppermost end of the long hole 2411; when the two right-angle rack blocks 231 slide toward each other along the adjusting cavity 221 to the shortest distance apart, the end of the support rod 234 on the long block 241 slides to the lowermost end of the long hole 2411, so that the sizes of the adjusting cavity 221 and the long hole 2411 are utilized to the maximum extent.

[0052] Furthermore, sockets 244 are welded and fixed at the four corners of the side walls of the top block 24 close to the arc block 26, and plug rods 261 equal in number to the sockets 244 and corresponding in position are welded and fixed on the back of the arc block 26. Sockets 2441 matching the size of the plug rods 261 are provided on the top surface of the sockets 244. The matching sockets 244 and plug rods 261 enable the arc block 26 and the top block 24 to be movably connected.

[0053] Specifically, a T-shaped groove 243 is provided in the top block 24 to accommodate the rotation of the bidirectional screw rod 251. A limiting ring 2511 is welded and fixed to the upper end of the side wall of the bidirectional screw rod 251. The top end of the bidirectional screw rod 251 extends out of the top block 24 and is integrally formed with a second handle 2512. The bidirectional screw rod 251 is rotated by the second handle 2512, and the limiting ring 2511 can prevent the bidirectional screw rod 251 from moving when it rotates.

[0054] It is worth mentioning that T-shaped sliders 2521 that are compatible with the size of the T-shaped slide groove 243 are integrally formed at both ends of the spring piece 252, and a threaded hole 2522 that is compatible with the bidirectional screw rod 251 is opened on the T-shaped slider 2521. When the bidirectional screw rod 251 rotates, the T-shaped sliders 2521 at both ends of the spring piece 252 slide towards each other, and the matching T-shaped slide groove 243 and T-shaped slider 2521 make the two ends of the spring piece 252 move relative to each other, thereby adjusting the deformation degree of the spring piece 252.

[0055] Furthermore, second through holes 311 that are compatible with the size of the rod body of the mounting frame 1 are provided at both ends of the second slide rod 31, and second fastening bolts 35 for fixing are provided at the top of the second through holes 311 at both ends of the second slide rod 31. Sliding the second slide rod 31 drives the head clamp 33 to slide relatively to a suitable position and is fixed by the second fastening bolts 35.

[0056] Specifically, a groove 331 for installing the airbag 34 is opened in the middle of the head clamp 33, and an air hole 332 connected to the airbag 34 is opened in the middle of the groove 331. A plurality of soft protrusions 341 are adhered and fixed to the outer wall of the airbag 34. The groove 331 can accommodate the airbag 34, and the soft protrusions 341 increase the friction between the airbag 34 and the patient's head.

[0057] When the catheter clamping device of the present invention is in operation, the user first places the mounting frame 1 above the patient's head through the handrail 11, and places the patient's head between the two head clamping blocks 33, slides the second slide bar 31 to a suitable position and fixes it through the second fastening bolt 35, and inflates the airbag 34 through the air hole 332, so that the airbag 34 abuts against both sides of the patient's head to fix the head;

[0058] Then, the two first sliding rods 21 are slid to the appropriate position and fixed by the first fastening bolts 27, so that the catheter is located between the two right-angle clamping blocks 22, and the gear 232 is rotated by the first handle 2331 to drive the two right-angle rack blocks 231 to slide toward each other, thereby increasing the angle between the support rod 234 and the horizontal plane, so that the top block 24 extends outward, and the arc block 26 abuts against the side wall of the catheter; at the same time, the back of the arc block 26 is squeezed by the spring sheet 252 to prevent the catheter from being flattened, and the two-way screw rod 251 is rotated by the second handle 2512 to make the two ends of the spring sheet 252 slide toward each other, thereby adjusting the deformation degree of the spring sheet 252 and the squeezing force of the arc block 26 on the catheter.

[0059] It should be noted that the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A catheter clamping device, comprising a mounting frame (1), and a clamping assembly (2) mounted on the mounting frame (1) for fixing a catheter and a head fixing assembly (3) for fixing a patient's head, characterized in that: The clamping assembly (2) comprises two first sliding bars (21) slidably connected to the mounting frame (1), two opposite right-angle clamping blocks (22) being mounted on the two first sliding bars (21), a telescopic member (23) being mounted on the inner side wall of the right-angle side of the right-angle clamping block (22), a top block (24) being disposed at one end of the telescopic member (23) away from the right-angle clamping block (22), an arc block (26) being movably inserted at one end of the top block (24) away from the telescopic member (23), and an anti-pressure member (25) being mounted between the arc block (26) and the top block (24); The telescopic member (23) comprises two right-angled rack blocks (231) which slide relatively inside the right-angled sides of the right-angled clamping block (22); a gear (232) is rotatably connected between the two right-angled rack blocks (231); the gear (232) and the rack sides of the two right-angled rack blocks (231) are meshed with each other; a support rod (234) is hinged on the horizontal right-angled side of the right-angled rack block (231); the middle parts of the two support rods (234) are hinged via a hinge column (235); The anti-pressure member (25) comprises a bidirectional screw rod (251) rotatably connected to the top block (24), a spring sheet (252) is provided on the bidirectional screw rod (251), two ends of the spring sheet (252) are respectively threadedly connected to the threaded sections at the two ends of the bidirectional screw rod (251), and the spring sheet (252) is curved and the middle part thereof abuts against the middle part of the back side of the arc block (26); The head fixing assembly (3) comprises two second sliding rods (31) slidably connected to the mounting frame (1); a head clamping block (33) is provided at the bottom of the second sliding rod (31) via a plurality of connecting rods (32); and an air bag (34) is installed on the head clamping block (33).

2. The catheter clamping device according to claim 1, characterized in that: Both ends of the first slide bar (21) are provided with first through holes (211) that are compatible with the rod size of the mounting frame (1); both ends of the first slide bar (21) are provided with first fastening bolts (27) for fixing at the top ends of the first through holes (211); and a mounting seat (212) for mounting the right-angle clamp (22) is provided in the middle of the first slide bar (21).

3. The catheter clamping device according to claim 1, characterized in that: An adjusting cavity (221) for accommodating the right-angled rack block (231) and the gear (232) is provided inside the right-angled side of the right-angled clamp block (22); a gear block (2311) adapted to the gear (232) is provided on the rack side of the right-angled rack block (231); a fixing block (2312) is welded and fixed on the horizontal side of the right-angled rack block (231); and the end of the support rod (234) is hinged to the fixing block (2312) via the hinge column (235).

4. The catheter clamping device according to claim 1, characterized in that: A straight rod (233) is welded and fixed at the center of the side wall of the gear (232), and a first handle (2331) is welded and fixed to the other end of the straight rod (233) after extending out of the right-angle clamping block (22).

5. The catheter clamping device according to claim 3, characterized in that: A long strip block (241) is welded and fixed to the side wall of the top block (24) close to the support rod (234) along the central axis, and a long strip hole (2411) is opened on the long strip block (241). One end of one of the support rods (234) is slidably connected to the long strip block (241). A hinge seat (242) is welded and fixed to the side wall of the top block (24) below the long strip block (241). One end of the other support rod (234) is hinged to the hinge seat (242). When the two are in contact, When the two right-angle rack blocks (231) slide relatively along the adjustment cavity (221) to the farthest distance between them, the end of the support rod (234) on the long strip block (241) slides to the uppermost end of the long strip hole (2411); when the two right-angle rack blocks (231) slide towards each other along the adjustment cavity (221) to the shortest distance between them, the end of the support rod (234) on the long strip block (241) slides to the lowermost end of the long strip hole (2411).

6. The catheter clamping device according to claim 1, characterized in that: Connecting seats (244) are welded and fixed at the four corners of the side wall of the top block (24) close to the arc block (26), and plug rods (261) equal in number to the connecting seats (244) and corresponding in position are welded and fixed on the back of the arc block (26), and a plug hole (2441) matching the size of the plug rod (261) is provided on the top surface of the connecting seat (244).

7. The catheter clamping device according to claim 1, characterized in that: A T-shaped slide groove (243) for accommodating the rotation of the bidirectional screw rod (251) is provided in the top block (24); a limit ring (2511) is welded and fixed to the upper end of the side wall of the bidirectional screw rod (251); and a second handle (2512) is integrally formed on the top end of the bidirectional screw rod (251) after the top end of the bidirectional screw rod (251) extends out of the top block (24).

8. The catheter clamping device according to claim 1, characterized in that: T-shaped sliders (2521) matching the size of the T-shaped slide groove (243) are integrally formed at both ends of the spring sheet (252), and threaded holes (2522) matching the bidirectional screw rod (251) are provided on the T-shaped sliders (2521). When the bidirectional screw rod (251) rotates, the T-shaped sliders (2521) located at both ends of the spring sheet (252) slide towards each other.

9. The catheter clamping device according to claim 1, characterized in that: Both ends of the second slide bar (31) are provided with second through holes (311) that match the size of the rod body of the mounting frame (1), and both ends of the second slide bar (31) are provided with second fastening bolts (35) for fixing at the top ends of the second through holes (311).

10. The catheter clamping device according to claim 1, characterized in that: A groove (331) for mounting the airbag (34) is provided in the middle of the head clamp (33), an air hole (332) communicating with the airbag (34) is provided in the middle of the groove (331), and a plurality of soft protrusions (341) are adhered and fixed to the outer wall of the airbag (34).

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