A clamping and fixing device for an infusion tube

Abstract

The present invention discloses a clamping and fixing device for an irrigation tube, which belongs to the technical field of medical devices and solves the problem of poor flexibility of the irrigation tube fixing device in the prior art in fixing angles. The clamping and fixing device for an irrigation tube of the present invention comprises a rod posture adjustment mechanism and a tube angle adjustment mechanism; one end of the rod posture adjustment mechanism is equipped with the tube angle adjustment mechanism; the rod posture adjustment mechanism comprises a T-shaped frame, a rotating pressure rod, a first connecting rod, a first hinged rod, a pressure block, a guide slide rail, a rotating block, a rotating slide rod, a second hinged rod, a first bearing and a downward pressure anti-rotation assembly. The present invention can quickly and flexibly fix the irrigation tube through the arrangement of the rod posture adjustment mechanism and the tube angle adjustment mechanism, and the angle of the fixed irrigation tube is flexible, which can adapt to a wide range of surgical patients.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a clamping and fixing device for an infusion tube. Background Art

[0002] The intraocular perfusion tube is a connecting tube that delivers perfusion fluid into the eyeball and maintains stable intraocular pressure. It is often used in closed vitrectomy systems. Due to the special anatomical structure of the eyeball, during vitrectomy surgery, the intraocular perfusion tube enters the eye through the ciliary body flat part 3.5mm to 4mm behind the corneoscleral limbus. Entering the eye from this area can avoid damaging the lens and retinal tissue.

[0003] Existing perfusion tubes are mostly fixed and guided by medical tapes or other items, and also use fixed frames to guide and fix the perfusion tubes. However, the above fixing methods all have the problem of inconvenient adjustment of the fixing angle in terms of fixing flexibility. Summary of the invention

[0004] In view of the above analysis, the present invention aims to provide a clamping and fixing device for an irrigation tube, so as to solve the problem of poor flexibility of the irrigation tube fixing device in the prior art in terms of fixing angle.

[0005] The purpose of the present invention is mainly achieved through the following technical solutions:

[0006] The present invention provides a clamping and fixing device for a perfusion tube, comprising a rod posture adjustment mechanism and a tube angle adjustment mechanism; the tube angle adjustment mechanism is installed at one end of the rod posture adjustment mechanism;

[0007] The rod body posture adjustment mechanism comprises a T-shaped frame, a rotating pressure rod, a first connecting rod, a first hinge rod, a pressure block, a guide slide rail, a rotating block, a rotating slide rod, a second hinge rod, a first bearing and a downward pressure anti-rotation assembly; the T-shaped frame is installed in the first bearing, the rotating pressure rod is hinged on both sides of the T-shaped frame, one end of the first connecting rod is fixed on the inner side of the rotating pressure rod, and both sides of the other end of the first connecting rod are hinged to one end of the first hinge rod and one end of the second hinge rod; the other end of the first hinge rod is hinged to the pressure rod The block is hinged, and the pressure block is connected to the guide slide rail fixed on the T-frame; a rotatable rotating block is installed on the upper part of the T-frame, and the rotating block is slidably connected to the rotating slide bar outside, and when the pressure block moves up, it can squeeze and fix the rotating block and the rotating slide bar, and the other end of the second hinged rod is installed with the downward pressure anti-rotation component, when the angle α between the first hinged rod and the second hinged rod is ≤180°, the rod body posture adjustment mechanism is in a non-fixed state, and when α>180°, the rod body posture adjustment mechanism is in a fixed state.

[0008] Furthermore, the downward pressure anti-rotation assembly includes a pressing rod, a second guide block and a rubber disk; the second guide block is fixed to the lower part of the T-frame, the pressing rod is slidably connected to the second guide block, one end of the pressing rod is hinged to the second hinged rod, and the rubber disk is fixed to the outer side of the first bearing, and when the pressing rod moves downward to squeeze the rubber disk, the T-frame cannot rotate.

[0009] Furthermore, a through slot is provided on the upper portion of the T-shaped frame for mounting and rotating the rotating block and the rotating slide rod, a round rod is fixed in the middle of the through slot, and the round rod is rotatably connected to the rotating block.

[0010] Furthermore, the tube body angle adjustment mechanism includes a first tube body, a concave connecting rod, a rotating dial, a ball sleeve, a universal ball, an end hook, a rotating plate and an inner plate groove threaded rod; the first tube body is fixed on both sides of the concave connecting rod, the ball sleeve is fixed to one end of the first tube body, the universal ball is arranged inside the ball sleeve, and the end hook is fixed to the other end of the first tube body, threaded holes are provided in the end hook and the ball sleeve, the inner plate groove threaded rod is threadedly connected in the threaded holes, the inner plate groove threaded rod is slidably connected to the rotating plate, the rotating plates are connected by the rotating dial, and the rotating dial is located between the first tube bodies.

[0011] Furthermore, when the rotating dial is rotated, the rotating dial can drive the inner plate groove threaded rod to rotate through the rotating plate, and the inner plate groove threaded rod can penetrate into the ball sleeve or the end hook under the action of the threaded hole, thereby achieving fixation between the ball sleeve and the universal ball or fixation of the end hook to the perfusion tube.

[0012] Furthermore, the universal ball is fixedly connected to the rod posture adjustment mechanism.

[0013] Furthermore, the tube body angle adjustment mechanism also includes a clamping hook; the clamping hook is fixed to the outer side of the first tube body.

[0014] Furthermore, the tube body angle adjustment mechanism also includes a clamping switch.

[0015] Furthermore, it also includes a clamping mechanism; the lower part of the rod posture adjustment mechanism is equipped with the clamping mechanism that can be clamped on the bed.

[0016] Furthermore, the clamping mechanism includes a concave card plate, a top plate, a lifting rod body, a ratchet bar, a pull-up plate, a ratchet block and a push-pull assembly; the lower part of the concave card plate is provided with a hole for the lifting rod body and the ratchet bar to be lifted and lowered, the ratchet bar is fixed on one side of the lifting rod body, the top plate and the pull-up plate are fixed at the upper and lower ends of the lifting rod body respectively, the push-pull assembly is installed at the lower end of the concave card plate, one end of the push-pull assembly is fixedly connected to the ratchet block, the ratchet block can contact the ratchet bar under the action of the push-pull assembly, and the push-pull assembly can control whether the lifting rod body and the ratchet bar can move downward.

[0017] Furthermore, the push-pull assembly includes a push-pull rod, a push-pull spring, a first guide block and a pull ring; the push-pull rod is fixed at one end of the ratchet block, the push-pull rod is slidably connected to the first guide block fixed at the lower end of the concave clamping plate, the push-pull spring is installed between the first guide block and the ratchet block, and the pull ring is fixed to one side of the push-pull rod.

[0018] Furthermore, the rubber disc is fixed on the upper surface of the clamping mechanism.

[0019] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0020] 1. The clamping and fixing device for the perfusion tube provided by the present invention can quickly and flexibly fix the perfusion tube through the arrangement of the rod body posture adjustment mechanism and the tube body angle posture adjustment mechanism. The angle of the fixed perfusion tube is flexible and can adapt to a wide range of surgical patients.

[0021] 2. The clamping and fixing device for the perfusion tube provided by the present invention has a rod body posture adjustment mechanism that can drive its rotating slide rod to rotate and slide, and provides the ability to fix in multiple directions and lengths. The operator only needs to press down the rotating pressure rods on both sides to fix the direction of the rotating slide rod and the extended length, which has the advantages of flexibility, convenience and speed.

[0022] 3. The clamping and fixing device for the perfusion tube provided by the present invention, the arrangement of the first tube body, the concave connecting rod, the rotating dial, the ball sleeve, the universal ball, the end hook, the rotating plate and the inner plate groove threaded rod of the tube body angle adjustment mechanism enables the perfusion tube to be effectively clamped in any posture, and at the same time, the fixation between the tube body angle adjustment mechanism and the rod body posture adjustment mechanism, and the fixation between the tube body angle adjustment mechanism and the perfusion tube can be simultaneously fixed by rotating the rotating dial.

[0023] Other features and advantages of the present invention will be described in the following description, and part of them will become obvious from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings are only for the purpose of illustrating particular embodiments and are not to be considered limiting of the present invention. Like reference symbols denote like components throughout the drawings.

[0025] Figure 1 It is a schematic structural diagram of the clamping and fixing device of the perfusion tube of the present invention.

[0026] Figure 2 It is a structural schematic diagram of the clamping mechanism of the clamping and fixing device for the perfusion tube of the present invention.

[0027] Figure 3 It is a position relationship diagram of the push-pull components of the clamping and fixing device of the perfusion tube of the present invention.

[0028] Figure 4 It is a schematic diagram of the rod posture adjustment mechanism of the clamping and fixing device of the perfusion tube of the present invention in a non-fixed state.

[0029] Figure 5 It is a schematic diagram of the rod posture adjustment mechanism of the clamping and fixing device of the perfusion tube of the present invention in a fixed state.

[0030] Figure 6 It is a structural schematic diagram of the tube body angle adjustment mechanism of the clamping and fixing device of the perfusion tube of the present invention.

[0031] Figure 7 It is a cross-sectional view of the tube body angle adjustment mechanism of the clamping and fixing device of the perfusion tube of the present invention.

[0032] Reference numerals:

[0033] 1. Clamping mechanism, 2. Rod posture adjustment mechanism, 3. Tube angle adjustment mechanism;

[0034] 101. concave card plate, 102. top plate, 103. lifting rod body, 104. ratchet bar, 105. upper pull plate, 106. ratchet block, 107. push-pull assembly;

[0035] 1071. push-pull rod, 1072. push-pull spring, 1073. first guide block, 1074. pull ring;

[0036] 201. T-shaped frame, 202. rotating pressure rod, 203. first connecting rod, 204. first hinge rod, 205. pressure block, 206. guide rail, 207. rotating block, 208. rotating slide rod, 209. second hinge rod, 210. pressure rod, 211. second guide block, 212. first bearing, 213. rubber disc;

[0037] 301. first tube body, 302. concave connecting rod, 303. rotating dial, 304. clamping hook, 305. ball sleeve, 306. universal ball, 307. end hook, 308. rotating plate, 309. inner plate groove threaded rod. DETAILED DESCRIPTION

[0038] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used to explain the principles of the present invention together with the embodiments of the present invention.

[0039] This embodiment provides a clamping and fixing device for a perfusion tube, such as Figure 1 As shown, it includes a rod body posture adjustment mechanism 2 and a tube body angle adjustment mechanism 3; one end of the rod body posture adjustment mechanism 2 is installed with the tube body angle adjustment mechanism 3.

[0040] The rod body posture adjustment mechanism 2 can quickly adjust the fixed position of the clamping and fixing device of this embodiment, and the tube body angle adjustment mechanism 3 can be quickly fixed to the rod body posture adjustment mechanism 2, and can fix the perfusion tube at multiple angles at the same time, so as to facilitate the operator to adjust the angle of the end of the perfusion tube according to actual needs.

[0041] Preferably, Figure 4 and Figure 5 As shown, the rod posture adjustment mechanism 2 includes a T-shaped frame 201, a rotating pressure rod 202, a first connecting rod 203, a first hinge rod 204, a pressure block 205, a guide rail 206, a rotating block 207, a rotating slide rod 208, a second hinge rod 209, a first bearing 212 and a downward pressure anti-rotation component; the T-shaped frame 201 is installed in the first bearing 212, the rotating pressure rod 202 is hinged on both sides of the T-shaped frame 201, one end of the first connecting rod 203 is fixed to the inner side of the rotating pressure rod 202, and both sides of the other end of the first connecting rod 203 are hinged to one end of the first hinge rod 204 and one end of the second hinge rod 209; the first hinge rod 2 The other end of 04 is hinged to the pressing block 205, and the pressing block 205 is connected to the guide slide rail 206 fixed on the T-frame 201; a rotatable rotating block 207 is installed on the upper part of the T-frame 201, and the rotating block 207 is externally slidably connected to the rotating slide bar 208, and when the pressing block 205 moves upward, it can squeeze and fix the rotating block 207 and the rotating slide bar 208, and the other end of the second hinged rod 209 is installed with the downward pressure anti-rotation component, when the angle α between the first hinged rod 204 and the second hinged rod 209 is ≤180°, the rod body posture adjustment mechanism 2 is in a non-fixed state, and when α>180°, the rod body posture adjustment mechanism 2 is in a fixed state.

[0042] The rotating pressure rod 202 is pressed down, and the rotating pressure rod 202 rotates and drives the first connecting rod 203 to rotate toward the middle of the T-shaped frame 201. The first connecting rod 203 pushes the first hinged rod 204 and the second hinged rod 209 that are hinged thereto. The first hinged rod 204 drives the pressure block 205 to rise under the limitation of the guide slide rail 206. The pressure block 205 squeezes the rotating block 207 and connects to the rotating slide rod 208 to fix it.

[0043] When the angle α between the first hinge rod 204 and the second hinge rod 209 is ≤180°, the rod posture adjustment mechanism 2 is in a non-fixed state, and when α>180°, the rod posture adjustment mechanism 2 is in a fixed state and can achieve self-locking.

[0044] Preferably, Figure 4 and Figure 5 As shown, the downward pressure anti-rotation assembly includes a pressing rod 210, a second guide block 211 and a rubber disk 213; the second guide block 211 is fixed to the lower part of the T-frame 201, the pressing rod 210 is slidably connected to the second guide block 211, one end of the pressing rod 210 is hinged to the second hinge rod 209, and the rubber disk 213 is fixed to the outer side of the first bearing 212. When the pressing rod 210 moves downward to squeeze the rubber disk 213, the T-frame 201 cannot rotate.

[0045] When the rotating pressing rod 202 is pressed down, the second hinge rod 209 drives the fixing rod 210 to descend under the limit of the second guide block 211, and the lower end of the fixing rod 210 presses against the rubber disk 213 to achieve locking of the rotation of the T-shaped frame 201.

[0046] Preferably, a through slot is provided on the upper portion of the T-shaped frame 201 for installing and rotating the rotating block 207 and the rotating slide bar 208 , a round rod is fixed in the middle of the through slot, and the round rod is rotatably connected to the rotating block 207 .

[0047] The rod body posture adjustment mechanism 2 can drive its rotating slide bar 208 to rotate and slide, and provides the ability to be fixed in multiple directions and lengths. The operator only needs to press down the rotating pressure rods 202 on both sides to fix the direction and extension length of the rotating slide bar 208, which has the advantages of flexibility, convenience and speed.

[0048] Preferably, Figure 6 and Figure 7As shown, the tube body angle adjustment mechanism 3 includes a first tube body 301, a concave connecting rod 302, a rotating dial 303, a ball sleeve 305, a universal ball 306, an end hook 307, a rotating plate 308 and an inner plate groove threaded rod 309; the first tube body 301 is fixed on both sides of the concave connecting rod 302, the ball sleeve 305 is fixed on one end of the first tube body 301, the universal ball 306 is arranged inside the ball sleeve 305, and the end hook 307 is fixed on the other end of the first tube body 301, threaded holes are opened in the end hook 307 and the ball sleeve 305, the inner plate groove threaded rod 309 is threadedly connected in the threaded holes, the inner plate groove threaded rod 309 is slidably connected to the rotating plate 308, the rotating plates 308 are connected by the rotating dial 303, and the rotating dial 303 is located between the first tube bodies 301.

[0049] Preferably, when the rotating dial 303 is rotated, the rotating dial 303 can drive the inner plate groove threaded rod 309 to rotate through the rotating plate 308, and the inner plate groove threaded rod 309 can penetrate into the ball sleeve 305 or the end hook 307 under the action of the threaded hole, thereby achieving the fixation between the ball sleeve 305 and the universal ball 306 or the fixation of the perfusion tube by the end hook 307.

[0050] Preferably, the universal ball 306 is fixedly connected to the rod posture adjustment mechanism 2 .

[0051] Rotate the dial wheel 303, the dial wheel 303 drives the rotating plate 308 to rotate, the rotating plate 308 drives the inner plate groove threaded rod 309 to rotate, and while the inner plate groove threaded rod 309 rotates, it rotates in or out of the ball sleeve 305 and the end hook 307 under the action of the threaded hole, thereby achieving the fixation between the ball sleeve 305 and the universal ball 306 or the fixation of the perfusion tube by the end hook 307.

[0052] Preferably, the tube body angle adjustment mechanism 3 further includes a clamping hook 304 ; the clamping hook 304 is fixed to the outer side of the first tube body 301 .

[0053] The clamping hook 304 is used to guide the main body of the perfusion tube, and can also prevent the operator from accidentally touching the pipeline of the perfusion tube and causing danger.

[0054] Preferably, it further comprises a clamping mechanism 1; the lower part of the rod posture adjustment mechanism 2 is provided with the clamping mechanism 1 which can be clamped on the bed.

[0055] The clamping mechanism 1 can further improve the stability of the rod posture adjustment mechanism 2 . The clamping mechanism 1 can ensure the stability of the rod posture adjustment mechanism 2 when the operator pushes and touches the rod posture adjustment mechanism 2 .

[0056] Preferably, Figure 2 and Figure 3 As shown, the clamping mechanism 1 includes a concave card plate 101, a top plate 102, a lifting rod body 103, a ratchet bar 104, a pull-up plate 105, a ratchet block 106 and a push-pull assembly 107; the lower part of the concave card plate 101 is provided with a hole for the lifting rod body 103 and the ratchet bar 104 to be lifted and lowered, the ratchet bar 104 is fixed to one side of the lifting rod body 103, the upper and lower ends of the lifting rod body 103 are respectively fixed with the top plate 102 and the pull-up plate 105, the lower end of the concave card plate 101 is installed with the push-pull assembly 107, one end of the push-pull assembly 107 is fixedly connected to the ratchet block 106, the ratchet block 106 can contact the ratchet bar 104 under the action of the push-pull assembly 107, and the push-pull assembly 107 can control whether the lifting rod body 103 and the ratchet bar 104 can move downward.

[0057] Insert the groove of the concave clamping plate 101 into the side of the bed, press down the bed board with one hand, and pull up the upper pull plate 105 with the other hand. The upper pull plate 105 drives the lifting rod body 103 and the ratchet bar 104 to move upward. When the upper pull plate 105 cannot move upward, the concave clamping plate 101 and the upper pull plate 105 cooperate to clamp on the bed board.

[0058] When the ratchet bar 104 and the ratchet block 106 cooperate, the ratchet bar 104 can move upward in one direction.

[0059] Preferably, Figure 3 As shown, the push-pull assembly 107 includes a push-pull rod 1071, a push-pull spring 1072, a first guide block 1073 and a pull ring 1074; the push-pull rod 1071 is fixed to one end of the ratchet block 106, and the push-pull rod 1071 is slidably connected to the first guide block 1073 fixed to the lower end of the concave clamping plate 101, the push-pull spring 1072 is installed between the first guide block 1073 and the ratchet block 106, and the pull ring 1074 is fixed to one side of the push-pull rod 1071.

[0060] When the ratchet bar 104 needs to move downward in contact, the pull ring 1074 is pulled, and the pull ring 1074 drives the push-pull rod 1071 to move, and the push-pull rod 1071 drives the ratchet block 106 away from the ratchet bar 104, so that the ratchet block 106 no longer limits the ratchet bar 104. At this time, the ratchet bar 104, the lifting rod body 103 and the upper pull plate 105 descend under the gravity and the elastic force of the bed board.

[0061] When using the clamping and fixing device of this embodiment, first select a suitable position to fix the clamping mechanism 1 on the side of the bed board. The installation method is:

[0062] Step 1: Install the clamping mechanism 1; extend the groove of the concave clamping plate 101 into the side of the bed, press down the bed board with one hand, and pull up the upper pull plate 105 with the other hand. The upper pull plate 105 drives the lifting rod body 103 and the ratchet bar 104 to move upward. When the upper pull plate 105 cannot move upward, the concave clamping plate 101 and the upper pull plate 105 cooperate to clamp on the bed board;

[0063] Step 2: Fix the tube body angle adjustment mechanism 3; after the operator makes the operation hole in the surgical eye and fixes the perfusion needle, connects the perfusion needle and the perfusion tube, pulls the end hook 307 to the vicinity of the end of the perfusion tube, observes and rotates the first tube body 301 to a suitable angle, hangs the end hook 307 on the perfusion tube, rotates the dial wheel 303, and the dial wheel 303 drives the rotating plate 308 to rotate, and the rotating plate 308 drives the inner plate groove threaded rod 309 to rotate. While the inner plate groove threaded rod 309 rotates, it rotates in or out of the ball sleeve 305 and the end hook 307 under the action of the threaded hole, thereby achieving the fixation between the ball sleeve 305 and the universal ball 306 or the fixation of the perfusion tube by the end hook 307;

[0064] Step 3: fix the rod body posture adjustment mechanism 2; press down the rotating pressure rod 202, the rotating pressure rod 202 rotates and drives the first connecting rod 203 to rotate toward the middle of the T-frame 201, and the first connecting rod 203 pushes the first hinged rod 204 and the second hinged rod 209 that are hinged thereto; the first hinged rod 204 drives the pressing block 205 to rise under the limit of the guide slide rail 206, and the pressing block 205 squeezes the rotating block 207 and the rotating slide rod 208 to fix it; the second hinged rod 209 drives the fixing rod 210 to descend under the limit of the second guide block 211, and the lower end of the fixing rod 210 resists the rubber disk 213 to lock the rotation of the T-frame 201, thereby fixing the fixed rod body posture adjustment mechanism 2, and the fixation of the perfusion tube is completed.

[0065] The arrangement of the clamping mechanism 1, the rod posture adjustment mechanism 2 and the tube angle adjustment mechanism 3 can quickly and flexibly fix the perfusion tube. The angle of the fixed perfusion tube is flexible and can adapt to a wide range of surgical patients.

[0066] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A clamping and fixing device for a perfusion tube, characterized in that: It comprises a rod body posture adjustment mechanism (2) and a tube body angle adjustment mechanism (3); one end of the rod body posture adjustment mechanism (2) is equipped with the tube body angle adjustment mechanism (3); The rod body posture adjustment mechanism (2) comprises a T-shaped frame (201), a rotating pressure rod (202), a first connecting rod (203), a first hinge rod (204), a pressure block (205), a guide slide rail (206), a rotating block (207), a rotating slide rod (208), a second hinge rod (209), a first bearing (212) and a downward pressure anti-rotation assembly; The T-shaped frame (201) is installed in the first bearing (212), the rotating pressure rod (202) is hinged on both sides of the T-shaped frame (201), one end of the first connecting rod (203) is fixed on the inner side of the rotating pressure rod (202), and both sides of the other end of the first connecting rod (203) are hinged to one end of the first hinge rod (204) and one end of the second hinge rod (209); the other end of the first hinge rod (204) is hinged to the pressure block (2 05), the pressing block (205) is connected to a guide slide rail (206) fixed on the T-shaped frame (201); a rotatable rotating block (207) is installed on the upper part of the T-shaped frame (201), and the rotating block (207) is externally slidably connected to a rotating slide bar (208). When the pressing block (205) moves upward, it can squeeze and fix the rotating block (207) and the rotating slide bar (208), and the other end of the second hinged rod (209) is installed with the downward pressing anti-rotation component.

2. The clamping and fixing device for the perfusion tube according to claim 1, characterized in that: The downward pressure anti-rotation assembly comprises a pressing rod (210), a second guide block (211) and a rubber disk (213); the second guide block (211) is fixed to the lower part of the T-shaped frame (201); the pressing rod (210) is slidably connected to the second guide block (211); one end of the pressing rod (210) is hinged to the second hinge rod (209); the rubber disk (213) is fixed to the outer side of the first bearing (212); when the pressing rod (210) moves downward to squeeze the rubber disk (213), the T-shaped frame (201) cannot rotate.

3. The clamping and fixing device for the perfusion tube according to claim 2, characterized in that: The upper part of the T-shaped frame (201) is provided with a through slot for the installation and rotation of the rotating block (207) and the rotating slide rod (208), a round rod is fixed in the middle of the through slot, and the round rod is rotatably connected to the rotating block (207).

4. The clamping and fixing device for the perfusion tube according to claim 2, characterized in that: The tube body angle adjustment mechanism (3) comprises a first tube body (301), a concave connecting rod (302), a rotating dial (303), a ball sleeve (305), a universal ball (306), an end hook (307), a rotating plate (308) and an inner plate groove threaded rod (309); The first tube body (301) is fixed to both sides of the concave connecting rod (302), wherein the ball sleeve (305) is fixed to the end of one of the first tube bodies (301), and the universal ball (306) is arranged inside the ball sleeve (305), and the end hook (307) is fixed to the end of the other first tube body (301), and threaded holes are provided in the end hook (307) and the ball sleeve (305), and the inner plate groove threaded rod (309) is threadedly connected in the threaded holes, and the inner plate groove threaded rod (309) is slidably connected to the rotating plate (308), and the rotating plates (308) are connected by a rotating dial (303), and the rotating dial (303) is located between the first tube bodies (301).

5. The clamping and fixing device for the perfusion tube according to claim 4, characterized in that: When the rotating dial (303) is rotated, the rotating dial (303) can drive the inner plate groove threaded rod (309) to rotate through the rotating plate (308), and the inner plate groove threaded rod (309) can penetrate into the ball sleeve (305) or the end hook (307) under the action of the threaded hole, thereby achieving fixation between the ball sleeve (305) and the universal ball (306) or fixation of the end hook (307) to the perfusion tube.

6. The clamping and fixing device for the perfusion tube according to claim 4, characterized in that: The universal ball (306) is fixedly connected to the rod body posture adjustment mechanism (2).

7. The clamping and fixing device for the perfusion tube according to claim 4, characterized in that: The tube body angle adjustment mechanism (3) further comprises a clamping hook (304); the clamping hook (304) is fixed to the outer side of the first tube body (301).

8. The clamping and fixing device for the perfusion tube according to claim 2, characterized in that: It also comprises a clamping mechanism (1); the lower part of the rod posture adjustment mechanism (2) is equipped with the clamping mechanism (1) capable of being clamped on the bed.

9. The clamping and fixing device for the perfusion tube according to claim 8, characterized in that: The clamping mechanism (1) comprises a concave clamping plate (101), a top plate (102), a lifting rod body (103), a ratchet bar (104), an upper pull plate (105), a ratchet block (106) and a push-pull assembly (107); The lower part of the concave card plate (101) is provided with a hole for the lifting rod body (103) and the ratchet bar (104) to be lifted and lowered; the ratchet bar (104) is fixed to one side of the lifting rod body (103); the top plate (102) and the upper pull plate (105) are respectively fixed to the upper and lower ends of the lifting rod body (103); the push-pull assembly (107) is installed at the lower end of the concave card plate (101); one end of the push-pull assembly (107) is fixedly connected to the ratchet block (106); the ratchet block (106) can contact the ratchet bar (104) under the action of the push-pull assembly (107); and the push-pull assembly (107) can control whether the lifting rod body (103) and the ratchet bar (104) can move downward.

10. The clamping and fixing device for the perfusion tube according to claim 9, characterized in that: The push-pull assembly (107) comprises a push-pull rod (1071), a push-pull spring (1072), a first guide block (1073) and a pull ring (1074); the push-pull rod (1071) is fixed to one end of the ratchet block (106), the push-pull rod (1071) is slidably connected to the first guide block (1073) fixed to the lower end of the concave clamping plate (101), the push-pull spring (1072) is installed between the first guide block (1073) and the ratchet block (106), and the pull ring (1074) is fixed to one side of the push-pull rod (1071).

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