Catheter gripping device

Abstract

The present application relates to the technical field of catheter fixing, in particular to a catheter clamping device, which comprises a mounting frame, a clamping assembly for fixing a catheter and a head fixing assembly for fixing a patient's head, the clamping assembly comprises two first sliding rods, the end of the telescopic piece away from the right-angle clamping block is provided with a top block, and an anti-pressing piece is arranged between the arc-shaped block and the top block; the head fixing assembly comprises two second sliding rods, and the bottom of the second sliding rod is provided with a head clamping block through a plurality of connecting rods. The gear, the right-angle rack block and the supporting rod arranged in the telescopic piece can adjust the distance between the top block and the catheter, so as to clamp catheters of different sizes; the bidirectional screw rod and the elastic sheet arranged in the anti-pressing piece prevent the catheter from being flattened and can also adjust the extrusion degree of the elastic sheet; at the same time, the head clamping block and the air bag arranged in the head clamping assembly can fix the patient's head.

Description

TECHNICAL FIELD

[0001] The present application relates to a catheter clamping device. BACKGROUND

[0002] In the process of gastrointestinal care, various catheters such as stomach tubes, intestinal tubes, etc. are often needed to be used. The stable placement of these catheters is crucial for the treatment and recovery of patients. However, the current existing catheter fixing methods have some deficiencies, especially in some special situations, such as when the patient is unconscious or the head is easy to shake, the stable placement of the catheter becomes more difficult.

[0003] Application No. CN202323195483.9 discloses a catheter fixing device for gastrointestinal surgery, which comprises a belt and a fixing box, and the inside of the fixing box is provided with a clamping mechanism. The clamping mechanism comprises a knob, a first rotating plate, a belt, a second rotating plate, a bidirectional screw rod and a clamping rod. Two bidirectional screw rods are respectively rotatably connected to the two sides of the top of the fixing box. Two second rotating plates are respectively fixedly connected to one side of the two bidirectional screw rods. The middle parts of the two bidirectional screw rods are respectively screw-connected to the middle parts of the two clamping rods. The knob is rotatably connected to the top of the middle part of the front side of the fixing box. The first rotating plate is fixedly connected to one end of the knob. By rotating the knob, the first rotating plate can be rotated. By cooperation of the belt, the second rotating plate and the bidirectional screw rod, the catheter can be clamped to avoid the use of adhesive tape or suturing method to fix the catheter, so as to prevent the catheter from falling off.

[0004] It can be seen that when the catheter is clamped in gastrointestinal care, different catheter requirements cannot be met, different sizes of catheters cannot be clamped and fixed, and the catheter cannot be prevented from being crushed when clamping the catheter, thereby causing catheter obstruction and damage. At the same time, when the patient's head is easy to shake, the stable placement of the catheter becomes more difficult.

[0005] In view of this, we propose a catheter clamping device for gastrointestinal care. SUMMARY

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

[0007] To achieve the above-mentioned purpose, the present application provides a catheter clamping device, which comprises a mounting frame, a clamping assembly for fixing a catheter mounted on the mounting frame, and a head fixing assembly for fixing the head of a patient,

[0008] The clamping assembly comprises two first sliding rods slidably connected to the mounting frame, two opposite right-angle clamping blocks mounted on the first sliding rods, an expansion piece mounted on the inner wall of the right-angle edge of the right-angle clamping block, a top block provided at the end of the expansion piece away from the right-angle clamping block, an arc-shaped block movably inserted into the end of the top block away from the expansion piece, and a pressure preventing piece mounted between the arc-shaped block and the top block.

[0009] The expansion piece comprises two right-angle rack blocks slidably arranged in the right-angle edge of the right-angle clamping block, a gear rotatably connected between the two right-angle rack blocks, and the gear and the rack edges of the two right-angle rack blocks are in meshing engagement with each other, a support rod hingedly connected to the horizontal right-angle edge of the right-angle rack block, and the two support rods are hingedly connected through a hinge column.

[0010] The pressure preventing piece comprises a bidirectional screw rod rotatably connected to the top block, a spring piece provided on the bidirectional screw rod, and the two ends of the spring piece are threadedly connected to the threaded segments at the two ends of the bidirectional screw rod, the spring piece is curved, and the middle portion of the spring piece is in abutting contact with the middle portion of the back surface of the arc-shaped block.

[0011] The head fixing assembly comprises two second sliding rods slidably connected to the mounting frame, a head clamping block provided at the bottom of the second sliding rod through a plurality of connecting rods, and an air bag mounted on the head clamping block.

[0012] As a further improvement of the technical solution, first through holes with sizes matching the rod body of the mounting frame are formed at the two ends of the first sliding rod, first fastening bolts for fixation are provided at the top ends of the first through holes at the two ends of the first sliding rod, and an installation seat for mounting the right-angle clamping block is provided at the middle portion of the first sliding rod.

[0013] As a further improvement of the technical solution, an adjusting cavity for accommodating the right-angle rack block and the gear is formed in the right-angle edge of the right-angle clamping block, a tooth block matching the gear is provided on the rack edge of the right-angle rack block, a fixed block is welded and fixed on the horizontal edge of the right-angle rack block, and the end portions of the support rods are hingedly connected 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 side wall of the gear, and a first handle is welded and fixed at the other end of the straight rod extending out of the right-angle clamping block.

[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 present 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 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 this technical solution, a T-shaped groove is provided in the top block for accommodating the rotation of the bidirectional screw rod, a limiting ring is welded and fixed to 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 present technical solution, T-shaped sliders adapted to the size of the T-shaped slide groove are integrally formed at both ends of the spring piece, 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 piece slide toward each other.

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

[0020] As a further improvement of the present 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 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. Turning the first handle rotates the gear to make 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, by the plug-in seat, the plug-in rod and the spring sheet, when the arc block is in abutment with the catheter, controls the pressing force on the catheter, and by rotating the second handle to adjust the distance between the two ends of the spring sheet, the initial deformation degree of the spring sheet is adjusted to control the extrusion force on different catheters, preventing the catheter from being crushed and damaged.

[0024] 3、The catheter clamping device, by sliding the second slide rod to adjust the head clamping block to the appropriate position on both sides of the patient's head, inflating the air bag, so that the air bag is in abutment with both sides of the patient's head, and the patient's head is fixed, preventing the patient from moving the catheter clamping device due to head shaking. BRIEF DESCRIPTION OF DRAWINGS

[0025] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes and proportions of the components in the drawings are only illustrative and are used to help understand the present invention, and are not specific limitations on the shapes and proportions of the components of the present invention. Those skilled in the art can choose various possible shapes and proportions to implement the present invention according to specific circumstances under the guidance of the present invention.

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

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

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

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

[0030] Figure 5 is a schematic diagram of the top block structure of the present invention;

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

[0032] Figure 7 is an exploded view of the pressure prevention member structure of the present invention;

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

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

[0035] Figure 10 is a sectional view of the right-angle clamping block structure of the present invention;

[0036] Figure 11Figure is a sectional view of the top block structure of the present application;

[0037] The meanings of the respective reference numerals in the figures are as follows:

[0038] 1, mounting frame; 11, handrail;

[0039] 2, clamping assembly; 21, first sliding rod; 211, first through hole; 212, mounting seat; 22, right-angle clamping block; 221, adjusting cavity; 23, telescopic member; 231, right-angle rack block; 2311, tooth block; 2312, fixing block; 232, gear; 233, straight rod; 2331, first handle; 234, support rod; 235, hinged column; 24, top block; 241, long strip block; 2411, long strip hole; 242, hinged seat; 243, T-shaped sliding groove; 244, insertion seat; 2441, insertion hole; 25, pressure-preventing member; 251, bidirectional screw rod; 2511, limiting ring; 2512, second handle; 252, elastic sheet; 2521, T-shaped sliding block; 2522, threaded hole; 26, arc-shaped block; 261, insertion rod; 27, first fastening bolt;

[0040] 3, head fixing assembly; 31, second sliding rod; 32, connecting rod; 33, head clamping block; 331, recess; 332, air hole; 34, air bag; 341, soft protrusion; 35, second fastening bolt. DETAILED DESCRIPTION

[0041] The details of the application can be more clearly understood with reference to the drawings and the following description. However, the specific embodiments of the application described herein are intended for purposes of illustration only and are not intended to be limiting in any way. The skilled person can conceive of any possible modification based on the present application under the teaching of the present application, which should be considered as falling within the scope of the present application. The terms “mounting” and “connecting” should be interpreted broadly, which can be direct connection or indirect connection through an intermediate medium.

[0042] The terms “central axis”, “vertical”, “horizontal”, “front”, “rear”, “upper”, “lower”, “left”, “right”, “top”, “bottom”, “inner”, “outer” and the like used herein indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, in the description of the present application, the meaning of “several” is two or more, unless otherwise explicitly and specifically limited.

[0043] Please refer to Figures 1-11As shown, the present application provides a catheter clamping device, including a gastrointestinal care catheter clamping device, including a mounting frame 1 and a clamping assembly 2 mounted on the mounting frame 1 for fixing the catheter and a head fixing assembly 3 for fixing the patient's head,

[0044] The clamping assembly 2 includes two first sliding rods 21 slidably connected to the mounting frame 1, two opposite right-angle clamping blocks 22 are mounted on the first sliding rods 21, a telescopic piece 23 is mounted on the inner wall of the right-angle side of the right-angle clamping block 22, a top block 24 is arranged at the end of the telescopic piece 23 away from the right-angle clamping block 22, an arc-shaped block 26 is movably inserted into the end of the top block 24 away from the telescopic piece 23, and a pressure preventing piece 25 is arranged between the arc-shaped block 26 and the top block 24; the telescopic piece 23 can clamp and fix catheters of different sizes, and the pressure preventing piece 25 can effectively prevent the catheter from being crushed and can also adjust the clamping force on different catheters

[0045] The telescopic piece 23 includes two right-angle rack blocks 231 slidably arranged in 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 is meshed with the rack edges of the two right-angle rack blocks 231, support rods 234 are hinged to the horizontal right-angle edges of the right-angle rack blocks 231, and the two support rods 234 are hingedly connected through a hinge column 235; the gear 232 is rotated to drive the two right-angle rack blocks 231 to slide towards each other, so that the included angle between the support rods 234 and the horizontal plane is increased, thereby causing the telescopic piece 23 to extend outward;

[0046] The pressure preventing piece 25 includes a bidirectional screw rod 251 rotatably connected in the top block 24, a spring piece 252 is arranged on the bidirectional screw rod 251, the two ends of the spring piece 252 are threadedly connected with the threaded segments at the two ends of the bidirectional screw rod 251, the spring piece 252 is curved and the middle part thereof abuts against the middle part of the back surface of the arc-shaped block 26; the two ends of the spring piece 252 are moved towards each other by rotating the bidirectional screw rod 251, thereby adjusting the deformation degree of the spring piece 252, so as to adjust the extrusion force of the arc-shaped block 26 on the catheter;

[0047] The head fixing assembly 3 includes two second sliding rods 31 slidably connected to the mounting frame 1, the second sliding rods 31 are provided with head clamping blocks 33 through a plurality of connecting rods 32 at the bottom, and air bags 34 are mounted on the head clamping blocks 33; the air bags 34 are inflated to fix the two sides of the patient's head, thereby avoiding the shaking of the patient's head.

[0048] Specifically, the first slide rod 21 is provided with a first through hole 211 at both ends, which is adapted to the size of the rod body of the mounting frame 1. The first slide rod 21 is provided with a first fastening bolt 27 at the top end of the first through hole 211 for fixing. The first slide rod 21 is provided with a mounting seat 212 for mounting the right-angle clamping block 22. The distance between the two right-angle clamping blocks 22 can be adjusted by sliding the first slide rod 21, so that the distance can be quickly adjusted, and the catheter can be fixed. The mounting seat 212 facilitates the installation of the right-angle clamping block 22.

[0049] Further, the right-angle clamping block 22 is provided with an adjusting cavity 221 inside the right-angle side for accommodating the right-angle rack block 231 and the gear 232. The rack block 231 of the right-angle rack block 231 is provided with a tooth block 2311 adapted to the gear 232. The gear 232 is engaged with the right-angle rack block 231, so that the two right-angle rack blocks 231 can move relative to each other when the gear 232 rotates. The horizontal side of the right-angle rack block 231 is welded with a fixed block 2312. The end of the supporting rod 234 is hinged with the fixed block 2312 through a hinge column 235. The supporting rod 234 is hinged with the fixed block 2312, so that when the two right-angle rack blocks 231 move towards each other, the included angle between the supporting rod 234 and the horizontal plane changes.

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

[0051] In addition, the top block 24 is welded with a long block 241 along the middle axis on the side wall close to the supporting rod 234. The long block 241 is provided with a long hole 2411. One end of one of the supporting rods 234 is slidably connected with the long block 241. The side wall of the top block 24 is welded with a hinge seat 242 below the long block 241. The other end of the other supporting rod 234 is hinged with the hinge seat 242. The long hole 2411 allows the supporting rod 234 to slide back and forth along the long hole 2411 when the included angle between the supporting rod 234 and the horizontal plane changes. When the two right-angle rack blocks 231 slide relative to each other to the farthest distance along the adjusting cavity 221, the end of the supporting 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 towards each other to the closest distance along the adjusting cavity 221, the end of the supporting rod 234 on the long block 241 slides to the lowermost end of the long hole 2411, so that the size of the adjusting cavity 221 and the long hole 2411 is utilized to the maximum extent.

[0052] Further, the top block 24 is welded and fixed with a plurality of insertion sockets 244 near the four corners of the side wall of the arc-shaped block 26, the arc-shaped block 26 is welded and fixed with a plurality of insertion rods 261 corresponding to the insertion sockets 244 in number and position, the top surface of the insertion socket 244 is provided with an insertion hole 2441 matched with the size of the insertion rod 261, and the matched insertion socket 244 and the insertion rod 261 enable the arc-shaped block 26 to be movably inserted with the top block 24.

[0053] Specifically, the T-shaped sliding groove 243 for accommodating the rotation of the bidirectional screw rod 251 is arranged in the top block 24, the limiting ring 2511 is welded and fixed to the upper end of the side wall of the bidirectional screw rod 251, and the second handle 2512 is integrally formed at the top end of the bidirectional screw rod 251 and extends out of the top block 24, the bidirectional screw rod 251 is rotated through the second handle 2512, and the limiting ring 2511 can prevent the bidirectional screw rod 251 from moving when rotating.

[0054] Specifically, the T-shaped sliding groove 243 for accommodating the rotation of the bidirectional screw rod 251 is arranged in the top block 24, the limiting ring 2511 is welded and fixed to the upper end of the side wall of the bidirectional screw rod 251, and the second handle 2512 is integrally formed at the top end of the bidirectional screw rod 251 and extends out of the top block 24, the bidirectional screw rod 251 is rotated through the second handle 2512, and the limiting ring 2511 can prevent the bidirectional screw rod 251 from moving when rotating.

[0055] Further, the second sliding rod 31 is provided with a second through hole matched with the size of the rod body of the mounting frame 1 at both ends, and the second sliding rod 31 is provided with a second fastening bolt 35 for fixation at the top end of the second through hole at both ends, the head clamping block 33 is relatively slid to a suitable position by sliding the second sliding rod 31, and is fixed through the second fastening bolt 35.

[0056] Specifically, the recess 331 for mounting the air bag 34 is arranged in the middle of the head clamping block 33, the air hole 332 communicating with the air bag 34 is arranged in the middle of the recess 331, and a plurality of soft protrusions 341 are fixedly attached to the outer side wall of the air bag 34, the recess 331 can accommodate the air bag 34, and the soft protrusions 341 increase the friction between the air bag 34 and the head of the patient.

[0057] When the catheter clamping device works, the user first places the mounting frame 1 above the head of the patient through the handrail 11, and the head of the patient is located between the two head clamping blocks 33, the second sliding rod 31 is slid to a suitable position and is fixed through the second fastening bolt 35, the air bag 34 is inflated through the air hole 332, and the air bag 34 abuts against the two sides of the head of the patient to fix the head.

[0058] Then slide two first slide bars 21 to suitable positions and fix by first fastening bolts 27, so that the guide pipe is located between two right angle clamping blocks 22, rotate gear 232 by first handle 2331, drive two right angle rack blocks 231 to slide to each other, then increase the included angle between support rod 234 and horizontal plane, make top block 24 stretch out, then make arc block 26 abut against the side wall of the guide pipe; at the same time, the back of arc block 26 is extruded by elastic sheet 252, prevent the guide pipe from being crushed, rotate bidirectional screw rod 251 by second handle 2512, make the two ends of elastic sheet 252 slide to each other, then adjust the deformation degree of elastic sheet 252, adjust the extrusion degree of arc block 26 to the guide pipe.

[0059] It should be noted that the above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and it cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A catheter clamping device comprising a mounting frame (1), a clamping assembly (2) mounted on the mounting frame (1) for fixing the catheter, and a head fixing assembly (3) for fixing the patient's head, characterized in that: 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) 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); and the middle parts of the two support rods (234) are hinged via a hinge column (235); The anti-pressure member (25) includes a bidirectional screw rod (251) rotatably connected to the top block (24), and a spring piece (252) is provided on the bidirectional screw rod (251). The two ends of the spring piece (252) are respectively threadedly connected to the threaded sections at the two ends of the bidirectional screw rod (251). The spring piece (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) includes two second slide bars (31) slidably connected to the mounting frame (1); a head clamping block (33) is provided at the bottom of the second slide bar (31) via a plurality of connecting rods (32); and an air bag (34) is installed on the head clamping block (33); 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); A long strip (241) is welded and fixed to the side wall of the top block (24) close to the support rod (234) along the central axis. A long strip hole (2411) is opened on the long strip (241). One end of one of the support rods (234) is slidably connected to the long strip (241). A hinge seat (242) is welded and fixed to the side wall of the top block (24) below the long strip (241). One end of the other support rod (234) is hinged to the hinge seat (242). When the two When the two right-angle rack blocks (231) slide relative to each other along the regulating 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 regulating cavity (221) to the closest 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).

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) adapted to the rod size of the mounting frame (1), and first fastening bolts (27) for fixing are provided at the top ends of the first through holes (211) at both ends of the first slide bar (21), 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, wherein: 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 clamping block (22) and is welded and fixed with a first handle (2331).

4. The catheter clamping device according to claim 1, wherein: 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 plug seats (244) and corresponding in position to each other are welded and fixed on the back of the arc block (26), and the top surface of the plug seat (244) is provided with a socket (2441) that is adapted to the size of the plug rods (261).

5. The catheter clamping device according to claim 1, wherein: A T-shaped slot (243) for accommodating the rotation of the bidirectional screw rod (251) is provided in the top block (24); a limiting 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 after the top end of the bidirectional screw rod (251) extends out of the top block (24).

6. The catheter clamping device according to claim 5, characterized in that: T-shaped sliders (2521) adapted to the size of the T-shaped slide groove (243) are integrally formed at both ends of the spring piece (252). A threaded hole (2522) adapted to the bidirectional screw rod (251) is provided on the T-shaped slider (2521). When the bidirectional screw rod (251) rotates, the T-shaped sliders (2521) located at both ends of the spring piece (252) slide toward each other.

7. The catheter clamping device according to claim 1, wherein: Both ends of the second slide bar (31) are provided with second through holes 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.

8. The catheter clamping device according to claim 1, wherein: 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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