Safety infusion tube capable of preventing blood return for delivery room

Abstract

The invention discloses a blood return prevention safety infusion tube for a delivery room, and belongs to the technical field of medical instruments, the blood return prevention safety infusion tube comprises a drip chamber, infusion tubes are fixedly connected to two ends of the drip chamber, fixing parts are fixedly connected to the outer sides of the infusion tubes, a shell is fixedly connected between the two fixing parts, and a monitoring assembly is arranged on the outer side of the shell. According to the blood return prevention safety infusion tube for the delivery room, through the arrangement of the alarm assembly, when liquid medicine in the inner cavity of the drip chamber drips off, the device can automatically control the power source to supply power to the motor, the safety of the infusion tube is improved, and the safety of the infusion tube is improved. The rotating disc continuously rotates back and forth, so that the knocking rod continuously knocks the tuning fork, medical staff and a patient are conveniently reminded that liquid medicine is about to drip off at the moment, the situation that workers need to frequently observe the amount of the liquid medicine in the inner cavity of the drip chamber is avoided, and then the working intensity of the medical staff is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical appliances, and more particularly to a safety infusion tube for preventing blood backflow used in a delivery room. Background Art

[0002] An infusion set is a common medical device product that is aseptically processed and is used to establish a channel between a vein and a liquid medicine for intravenous infusion. An infusion set is generally composed of a venous needle or injection needle, a needle cap, an infusion hose, a liquid medicine filter drip pot and other components. In the prior art, when medical staff use an infusion tube to infuse a patient, if the puncture needle is not pulled out in time after the liquid medicine has dripped, blood will return to the patient's needle site. Therefore, medical staff or patients are often required to observe the amount of liquid medicine in the drip pot, which increases the workload of medical staff and reduces the practical performance of the device. Based on this, the present invention designs a safety infusion tube with anti-blood return for use in delivery rooms to solve the above problems. Summary of the Invention

[0003] Technical problems to be solved

[0004] The purpose of the present invention is to provide a safety infusion tube for use in a delivery room to prevent blood backflow, so as to solve the problems raised in the above background technology:

[0005] In the prior art, when medical staff use an infusion tube to infuse a patient, if the puncture needle is not pulled out in time after the medicine drips out, blood will return to the patient's needle point. Therefore, the medical staff or the patient often needs to observe the amount of medicine in the drip bucket, which increases the workload of the medical staff and reduces the practical performance of the device.

[0006] Technical Solution

[0007] A safety infusion tube for preventing blood backflow for use in a delivery room comprises a drip bucket, both ends of which are fixedly connected to an infusion tube, a fixing piece is fixedly connected to the outside of the infusion tube, a shell is fixedly connected between the two fixing pieces, a monitoring component is provided on the outside of the shell, the monitoring component passes through the shell and extends to the inner cavity of the infusion tube, an alarm component is provided on the side of the shell away from the monitoring component, the alarm component passes through the shell and is connected to the monitoring component, a clamping component is provided on the inner wall of the shell, and the clamping component is connected to the alarm component.

[0008] Preferably, the monitoring component includes a mounting disk fixedly connected to the outside of the shell, the outside of the mounting disk is provided with scale lines, and a pointer is rotatably connected to the side of the mounting disk close to the scale lines, the outside of the pointer is fixedly connected to a rotating shaft, the rotating shaft passes through the shell and is fixedly connected to a winding wheel, a driving component is provided on the outside of the winding wheel, the outside of the rotating shaft is fixedly connected to a coil spring, the end of the coil spring away from the rotating shaft is fixedly connected to a fixed disk, and the fixed disk is fixedly connected to the shell.

[0009] Preferably, the driving assembly includes a floating ring slidably connected to the inner cavity of the drip bucket, a magnet 1 is fixedly connected above the floating ring, a through hole is opened through the inner cavity of the magnet 1, and the driving assembly also includes a sliding rod fixedly connected to the inner cavity of the shell, a magnet 2 is slidably connected to the outer side of the sliding rod, a connecting rope is fixedly connected to the outer side of the magnet 2, and the end of the connecting rope away from the magnet 2 is fixedly connected to the winding wheel.

[0010] Preferably, the alarm component includes a fixing seat fixedly connected to the outside of the shell, the outside of the fixing seat is fixedly connected to a bracket, the end of the bracket away from the fixing seat is fixedly connected to a tuning fork, a knocking rod is provided below the tuning fork, the outside of the knocking rod is fixedly connected to a rotating shaft, the rotating shaft passes through the shell and is fixedly connected to a turntable, the outside of the turntable is rotatably connected to an installation box, the installation box is fixedly connected to the shell, the side of the turntable is fixedly connected to a gear ring, the inner cavity of the gear ring is meshed with a full gear, a transmission assembly is provided on the outside of the full gear, and the side of the full gear is fixedly connected to a fixed shaft, and the fixed shaft is rotatably connected to the installation box.

[0011] Preferably, the transmission assembly includes a conductive sheet 1 fixedly connected to the outside of the sliding rod, the outside of the conductive sheet 1 is electrically connected to a power supply, and a conductive sheet 2 is slidably connected above the conductive sheet 1, the outside of the conductive sheet 2 is electrically connected to a motor, a driving wheel 1 is fixedly connected to the output shaft of the motor, a belt 1 is sleeved on the outside of the driving wheel 1, and the driving wheel 1 is connected to a driven wheel 1 through the belt 1, the outside of the driven wheel 1 is fixedly connected to a driving shaft, the driving shaft passes through the mounting box and is fixedly connected to a residual gear, and the residual gear is respectively connected to the gear ring and the full gear.

[0012] Preferably, the clamping assembly includes two groups of bearing seats fixedly connected to the inner wall of the shell, a single group of two bearing seats, and a rotating rod rotatably connected between the two bearing seats, the rotating rod passes through the bearing seat and is connected to a linkage assembly, and a thread line 1 and a thread line 2 are provided on the outer side of the rotating rod, the thread directions of the thread line 1 and the thread line 2 are opposite, and the outer sides of the thread line 1 and the thread line 2 are both threadedly connected to a threaded seat, the outer side of the threaded seat is fixedly connected to a splint, the side of the splint away from the threaded seat is fixedly connected to a guide seat, the outer side of the guide seat is slidably connected to a guide rod, and both ends of the guide rod are fixedly connected to a mounting seat, and the mounting seat is fixedly connected to the shell.

[0013] Preferably, the linkage assembly includes a driving rod fixedly connected to the outer side of the driving wheel one, the driving rod is fixedly connected to the driving wheel two at one end away from the driving wheel one, the outer side of the driving wheel two is provided with a belt two, and the driving wheel two is connected to the driven wheel two through the belt two, the outer side of the driven wheel two is fixedly connected to the linkage shaft, the linkage shaft passes through the bearing seat and is fixedly connected to the rotating rod, the linkage assembly also includes a connecting shaft two fixedly connected to the end of the rotating rod away from the linkage shaft, the end of the connecting shaft two away from the rotating rod is fixedly connected to the driving wheel three, the outer side of the driving wheel three is provided with a belt three, and the driving wheel three is connected to the driven wheel three through the belt three, the outer side of the driven wheel three is fixedly connected to the connecting shaft one, the connecting shaft one passes through the bearing seat and is fixedly connected to the other rotating rod.

[0014] Beneficial effects

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] In the present invention, by providing a monitoring component, the device can control the movement of magnet one in the inner cavity of the drip bucket according to the height of the medicine liquid in the inner cavity of the drip bucket when the patient is infused, so that magnet two drives the winding wheel to rotate through the connecting rope, so that the amount of medicine liquid in the inner cavity of the drip bucket can be displayed through the scale line on the mounting plate, thereby avoiding the shell blocking the drip bucket, making it difficult for medical staff or patients to observe the amount of medicine liquid in the inner cavity of the drip bucket.

[0017] In the present invention, by setting an alarm component, the device can automatically control the power supply to the motor when the medicine liquid in the inner cavity of the drip bucket is finished, so that the turntable rotates back and forth continuously, so that the knocking rod continuously knocks the tuning fork, thereby facilitating the reminder of medical staff and patients that the medicine liquid is about to drip out, thereby avoiding the need for staff to frequently observe the amount of medicine liquid in the inner cavity of the drip bucket, thereby reducing the workload of medical staff.

[0018] In the present invention, by providing a clamping assembly, the device can automatically control the rotation of the two rotating rods when reminding medical staff that the medicine is about to be dripped out, so that the two splints are close to each other, so that the device can clamp the infusion tubes at the upper and lower ends of the drip bucket through the splints, thereby preventing the puncture needle from being pulled out in time, causing the patient to have blood back, thereby improving the practical performance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 It is a schematic diagram of the overall structure of the present invention from another perspective;

[0021] Figure 3 It is a cross-sectional view of the shell structure of the present invention;

[0022] Figure 4 For the present invention Figure 3 A magnified view of the structure at center A;

[0023] Figure 5 This is a cross-sectional view of the drip bucket structure of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the installation disk of the present invention;

[0025] Figure 7 This is a cross-sectional view of the installation box structure of the present invention;

[0026] Figure 8 It is a schematic structural diagram of the clamping assembly of the present invention.

[0027] Explanation of the reference numerals in the figure: 1. Drip chamber; 2. Infusion tube; 3. Fixing member; 4. Housing; 5. Monitoring assembly; 51. Floating ring; 52. Magnet 1; 53. Through hole; 54. Sliding rod; 56. Magnet 2; 57. Winding wheel; 58. Rotating shaft; 59. Coil spring; 510. Fixed plate; 511. Mounting plate; 512. Scale line; 513. Pointer; 6. Alarm assembly; 61. Fixed seat; 62. Bracket; 63. Tuning fork; 64. Striking rod; 65. Rotating shaft; 66. Turntable; 67. Mounting box; 68. Gear ring; 69. Full gear; 610. Fixed shaft; 611. Residual gear; 612. Drive shaft; 613 , driven wheel one; 614, belt one; 615, driving wheel one; 616, motor; 617, power supply; 618, conductive sheet one; 619, conductive sheet two; 7, clamping assembly; 71, bearing seat; 72, rotating rod; 73, thread line one; 74, thread line two; 75, thread seat; 76, splint; 77, guide seat; 78, guide rod; 79, mounting seat; 710, linkage shaft; 711, driven wheel two; 712, belt two; 713, driving wheel two; 714, driving rod; 715, connecting shaft one; 716, driven wheel three; 717, belt three; 718, driving wheel three; 719, connecting shaft two. DETAILED DESCRIPTION

[0028] Example: See Figure 1-8 A safety infusion tube for preventing blood backflow for use in a delivery room comprises a drip bucket 1, both ends of the drip bucket 1 are fixedly connected to an infusion tube 2, the outer side of the infusion tube 2 is fixedly connected to a fixing piece 3, a shell 4 is fixedly connected between the two fixing pieces 3, a monitoring component 5 is provided on the outer side of the shell 4, the monitoring component 5 passes through the shell 4 and extends to the inner cavity of the infusion tube 2, an alarm component 6 is provided on the side of the shell 4 away from the monitoring component 5, the alarm component 6 passes through the shell 4 and is connected to the monitoring component 5, a clamping component 7 is provided on the inner wall of the shell 4, and the clamping component 7 is connected to the alarm component 6.

[0029] The monitoring assembly 5 includes a mounting plate 511 fixedly connected to the outside of the housing 4, a scale line 512 is opened on the outside of the mounting plate 511, and a pointer 513 is rotatably connected to the side of the mounting plate 511 close to the scale line 512, and a rotating shaft 58 is fixedly connected to the outside of the pointer 513. The rotating shaft 58 passes through the housing 4 and is fixedly connected to a winding wheel 57. A driving assembly is provided on the outside of the winding wheel 57. A coil spring 59 is fixedly connected to the outside of the rotating shaft 58. The end of the coil spring 59 away from the rotating shaft 58 is fixedly connected to A fixed disk 510 is fixedly connected to the shell 4, and the drive assembly includes a floating ring 51 slidably connected to the inner cavity of the drip bucket 1, and a magnet 1 52 is fixedly connected above the floating ring 51. The inner cavity of the magnet 1 52 is penetrated by a through hole 53. The drive assembly also includes a sliding rod 54 fixedly connected to the inner cavity of the shell 4, and a magnet 2 56 is slidably connected to the outer side of the sliding rod 54. A connecting rope is fixedly connected to the outer side of the magnet 2 56, and the end of the connecting rope away from the magnet 2 56 is fixedly connected to the winding wheel 57.

[0030] By providing the monitoring component 5, the device can control the movement of the magnet 1 52 in the inner cavity of the drip bucket 1 according to the height of the medicine liquid in the inner cavity of the drip bucket 1 when the patient is receiving an infusion, so that the magnet 2 56 drives the winding wheel 57 to rotate through the connecting rope, so that the amount of medicine liquid in the inner cavity of the drip bucket 1 can be displayed through the scale line 512 on the mounting plate 511, thereby avoiding the shell 4 from blocking the drip bucket 1, making it difficult for medical staff or patients to observe the amount of medicine liquid in the inner cavity of the drip bucket 1.

[0031] The alarm component 6 includes a fixing seat 61 fixedly connected to the outside of the shell 4, and a bracket 62 is fixedly connected to the outside of the fixing seat 61, and a tuning fork 63 is fixedly connected to the end of the bracket 62 away from the fixing seat 61. A knocking rod 64 is provided below the tuning fork 63, and a rotating shaft 65 is fixedly connected to the outside of the knocking rod 64. The rotating shaft 65 passes through the shell 4 and is fixedly connected to a turntable 66. The outside of the turntable 66 is rotatably connected to an installation box 67, and the installation box 67 is fixedly connected to the shell 4. The side of the turntable 66 is fixedly connected to a gear ring 68, and the inner cavity of the gear ring 68 is meshed with a full gear 69. A transmission component is provided on the outside of the full gear 69, and a fixed shaft 610 is fixedly connected to the side of the full gear 69. The fixed shaft 610 is connected to the installation box 67. The box 67 is rotatably connected, and the transmission assembly includes a conductive sheet 1 618 fixedly connected to the outside of the slide bar 54, the outside of the conductive sheet 1 618 is electrically connected to the power supply 617, and the upper part of the conductive sheet 1 618 is slidably connected to the conductive sheet 2 619, the outside of the conductive sheet 2 619 is electrically connected to the motor 616, and the output shaft of the motor 616 is fixedly connected to the driving wheel 1 615, the outer side of the driving wheel 1 615 is provided with a belt 1 614, and the driving wheel 1 615 is connected to the driven wheel 1 613 through the belt 1 614, and the outer side of the driven wheel 1 613 is fixedly connected to the driving shaft 612, and the driving shaft 612 passes through the mounting box 67 and is fixedly connected to the residual gear 611, and the residual gear 611 is respectively connected to the gear ring 68 and the full gear 69.

[0032] By setting up the alarm component 6, the device can automatically control the power supply 617 to supply power to the motor 616 when the liquid medicine in the inner cavity of the drip bucket 1 is finished, so that the turntable 66 rotates back and forth continuously, so that the knocking rod 64 continuously knocks the tuning fork 63, thereby reminding medical staff and patients that the liquid medicine is about to be finished, thereby avoiding the need for staff to frequently observe the amount of liquid medicine in the inner cavity of the drip bucket 1, thereby reducing the workload of medical staff.

[0033] The clamping assembly 7 includes two groups of bearing seats 71 fixedly connected to the inner wall of the shell 4, a single group of bearing seats 71 is two, and a rotating rod 72 is rotatably connected between the two bearing seats 71, the rotating rod 72 passes through the bearing seats 71 and is connected to a linkage assembly, and a thread line 1 73 and a thread line 2 74 are provided on the outer side of the rotating rod 72, the thread directions of the thread line 1 73 and the thread line 2 74 are opposite, and the outer sides of the thread line 1 73 and the thread line 2 74 are both threadedly connected to a threaded seat 75, the outer side of the threaded seat 75 is fixedly connected to a clamping plate 76, the side of the clamping plate 76 away from the threaded seat 75 is fixedly connected to a guide seat 77, the outer side of the guide seat 77 is slidably connected to a guide rod 78, both ends of the guide rod 78 are fixedly connected to a mounting seat 79, the mounting seat 79 is fixedly connected to the shell 4, the linkage assembly includes a driving rod 714 fixedly connected to the outer side of the driving wheel 1 615, the driving The end of the movable rod 714 away from the driving wheel 1 615 is fixedly connected to the driving wheel 2 713, the outer side of the driving wheel 2 713 is provided with a belt 2 712, and the driving wheel 2 713 is connected to the driven wheel 2 711 through the belt 2 712, the outer side of the driven wheel 2 711 is fixedly connected to the linkage shaft 710, the linkage shaft 710 passes through the bearing seat 71 and is fixedly connected to the rotating rod 72, the linkage assembly also includes a connecting shaft 2 719 fixedly connected to the end of the rotating rod 72 away from the linkage shaft 710, the end of the connecting shaft 2 719 away from the rotating rod 72 is fixedly connected to the driving wheel 3 718, the outer side of the driving wheel 3 718 is provided with a belt 3 717, and the driving wheel 3 718 is connected to the driven wheel 3 716 through the belt 3 717, the outer side of the driven wheel 3 716 is fixedly connected to the connecting shaft 1 715, the connecting shaft 1 715 passes through the bearing seat 71 and is fixedly connected to the other rotating rod 72.

[0034] By providing the clamping assembly 7, the device can automatically control the two rotating rods 72 to rotate when reminding the medical staff that the medicine is about to be dripped out, so that the two clamps 76 are close to each other, so that the device can clamp the infusion tube 2 at the upper and lower ends of the drip bucket 1 through the clamps 76, thereby preventing the puncture needle from being pulled out in time, causing the patient to have blood back, thereby improving the practical performance of the device.

[0035] Working principle of the present invention:

[0036] When the patient is receiving an infusion, the inner cavity of the drip bucket 1 will be filled with liquid medicine. At this time, the magnet 1 52 will rise to the top of the drip bucket 1 due to the buoyancy of the float ring 51. When the liquid medicine in the inner cavity of the drip bucket 1 is about to be dripped out, the magnet 1 52 will move downward due to gravity, so that the magnet 1 52 drives the magnet 2 56 to move synchronously through the magnetic force. When the magnet 2 56 moves, it stretches the connecting rope fixedly connected to it, so that the connecting rope drives the winding wheel 57 to rotate. When the winding wheel 57 rotates, it drives the rotating shaft 58 fixedly connected to it to rotate, so that the rotating shaft 58 drives the pointer 513 fixedly connected to it to rotate. The medical staff or the patient can judge the amount of liquid medicine in the inner cavity of the drip bucket 1 at this time according to the direction of the pointer 513 on the mounting plate 511, thereby preventing the shell 4 from blocking the drip bucket 1, making it difficult for the medical staff or the patient to observe the amount of liquid medicine in the inner cavity of the drip bucket 1.

[0037] When the liquid in the inner cavity of the drip bucket 1 is finished dripping, the conductive sheet 2 619 will contact the conductive sheet 1 618. At this time, the power supply 617 will supply power to the motor 616, so that the motor 616 drives the driving wheel 1 615 fixedly connected to its output shaft to rotate. When the driving wheel 1 615 rotates, it will drive the driven wheel 1 613 to rotate through the belt 1 614, so that the driven wheel 1 613 drives the driving shaft 612 fixedly connected to it to rotate. When the driving shaft 612 rotates, it will drive the residual gear 611 fixedly connected to it to rotate. At this time, the residual gear 611 will mesh with the gear ring 68, so that the residual gear 611 drives the gear The ring 68 rotates forward. When the residual gear 611 is disengaged from the gear ring 68, the residual gear 611 will mesh with the full gear 69. At this time, the full gear 69 will drive the gear ring 68 meshed with it to rotate. As the residual gear 611 continues to mesh with the gear ring 68 and the full gear 69, the gear ring 68 drives the turntable 66 fixed to it to rotate back and forth continuously. When the turntable 66 rotates, it drives the rotating shaft 65 fixed to it to rotate synchronously, so that the rotating shaft 65 drives the knocking rod 64 fixed to it to rotate. When the knocking rod 64 rotates, it will continuously knock the tuning fork 63 above it, thereby reminding the medical staff that the medicine is about to be dripped.

[0038] When the driving wheel 1 615 rotates, it drives the driving rod 714 fixedly connected thereto to rotate, thereby causing the driving rod 714 to drive the driving wheel 2 713 fixedly connected thereto to rotate. When the driving wheel 2 713 rotates, it drives the driven wheel 2 711 to rotate through the belt 2 712, thereby causing the driven wheel 2 711 to drive the linkage shaft 710 fixedly connected thereto to rotate. When the linkage shaft 710 rotates, it drives the rotating rod 72 fixedly connected thereto to rotate, thereby causing the rotating rod 72 to drive the connecting shaft 2 719 fixedly connected thereto to rotate. When the connecting shaft 2 719 rotates, it drives the driving wheel 3 718 fixedly connected thereto to rotate, thereby causing the driving wheel 3 718 to rotate through the belt 2 Belt three 717 drives driven wheel three 716 to rotate. When driven wheel three 716 rotates, it will drive connecting shaft one 715 fixedly connected to it to rotate, so that connecting shaft one 715 drives another rotating rod 72 to rotate. At this time, the two rotating rods 72 will rotate synchronously, so that the rotating rod 72 drives the outer thread line one 73 and thread line two 74 to rotate. When the thread line one 73 and thread line two 74 rotate, they will respectively drive the threaded seat 75 threadedly connected to them to approach each other, so that the threaded seat 75 drives the splint 76 fixedly connected to it to move synchronously. When the splint 76 moves, it will clamp the infusion tube 2, thereby preventing blood from returning to the patient's injection site.

[0039] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A safety infusion tube for preventing blood backflow in a delivery room, comprising a drip chamber (1), characterized in that: Both ends of the drip bucket (1) are fixedly connected to an infusion tube (2), a fixing member (3) is fixedly connected to the outside of the infusion tube (2), a shell (4) is fixedly connected between the two fixing members (3), a monitoring component (5) is provided on the outside of the shell (4), the monitoring component (5) passes through the shell (4) and extends to the inner cavity of the infusion tube (2), an alarm component (6) is provided on the side of the shell (4) away from the monitoring component (5), the alarm component (6) passes through the shell (4) and is connected to the monitoring component (5), a clamping component (7) is provided on the inner wall of the shell (4), and the clamping component (7) is connected to the alarm component (6).

2. The safety infusion tube for preventing blood backflow for use in delivery rooms according to claim 1, characterized in that: The monitoring assembly (5) comprises a mounting plate (511) fixedly connected to the outside of the housing (4); a scale line (512) is provided on the outside of the mounting plate (511); and a pointer (513) is rotatably connected to a side of the mounting plate (511) close to the scale line (512); a rotating shaft (58) is fixedly connected to the outside of the pointer (513); the rotating shaft (58) passes through the housing (4) and is fixedly connected to a winding wheel (57); a driving assembly is provided on the outside of the winding wheel (57); a coil spring (59) is fixedly connected to the outside of the rotating shaft (58); an end of the coil spring (59) away from the rotating shaft (58) is fixedly connected to a fixed plate (510); and the fixed plate (510) is fixedly connected to the housing (4).

3. The safety infusion tube for preventing blood backflow for use in delivery rooms according to claim 2, characterized in that: The driving assembly includes a floating ring (51) slidably connected to the inner cavity of the drip bucket (1), a magnet 1 (52) is fixedly connected above the floating ring (51), and a through hole (53) is opened through the inner cavity of the magnet 1 (52). The driving assembly also includes a sliding rod (54) fixedly connected to the inner cavity of the shell (4), a magnet 2 (56) is slidably connected to the outer side of the sliding rod (54), a connecting rope is fixedly connected to the outer side of the magnet 2 (56), and the end of the connecting rope away from the magnet 2 (56) is fixedly connected to the winding wheel (57).

4. The safety infusion tube for preventing blood backflow for use in delivery rooms according to claim 1, characterized in that: The alarm assembly (6) comprises a fixing seat (61) fixedly connected to the outside of the housing (4); a bracket (62) is fixedly connected to the outside of the fixing seat (61); a tuning fork (63) is fixedly connected to one end of the bracket (62) away from the fixing seat (61); a knocking rod (64) is provided below the tuning fork (63); a rotating shaft (65) is fixedly connected to the outside of the knocking rod (64); the rotating shaft (65) passes through the housing (4) and is fixedly connected to the turntable ( 66), the outer side of the turntable (66) is rotatably connected to a mounting box (67), the mounting box (67) is fixedly connected to the housing (4), the side of the turntable (66) is fixedly connected to a gear ring (68), the inner cavity of the gear ring (68) is meshed with a full gear (69), the outer side of the full gear (69) is provided with a transmission assembly, and the side of the full gear (69) is fixedly connected to a fixed shaft (610), and the fixed shaft (610) is rotatably connected to the mounting box (67).

5. The safety infusion tube for preventing blood backflow for use in delivery rooms according to claim 4, characterized in that: The transmission assembly includes a conductive sheet (618) fixedly connected to the outside of the slide bar (54), the outside of the conductive sheet (618) is electrically connected to a power supply (617), and the upper part of the conductive sheet (618) is slidably connected to a conductive sheet (619), the outside of the conductive sheet (619) is electrically connected to a motor (616), the output shaft of the motor (616) is fixedly connected to a driving wheel (615), the outside of the driving wheel (615) is provided with a belt (614), and the driving wheel (615) is connected to a driven wheel (613) through the belt (614), the outside of the driven wheel (613) is fixedly connected to a driving shaft (612), the driving shaft (612) passes through the mounting box (67) and is fixedly connected to a residual gear (611), and the residual gear (611) is respectively connected to the gear ring (68) and the full gear (69).

6. The safety infusion tube for preventing blood backflow for use in delivery rooms according to claim 1, characterized in that: The clamping assembly (7) includes two groups of bearing seats (71) fixedly connected to the inner wall of the housing (4), and a single group of the bearing seats (71) is two, and a rotating rod (72) is rotatably connected between the two bearing seats (71), and the rotating rod (72) passes through the bearing seats (71) and is connected to a linkage assembly, and a thread line 1 (73) and a thread line 2 (74) are provided on the outer side of the rotating rod (72), and the thread directions of the thread line 1 (73) and the thread line 2 (74) are opposite. The outer sides of the thread line 1 (73) and the thread line 2 (74) are both threadedly connected to a threaded seat (75), the outer side of the threaded seat (75) is fixedly connected to a clamping plate (76), the side of the clamping plate (76) away from the threaded seat (75) is fixedly connected to a guide seat (77), the outer side of the guide seat (77) is slidably connected to a guide rod (78), both ends of the guide rod (78) are fixedly connected to a mounting seat (79), and the mounting seat (79) is fixedly connected to the housing (4).

7. The safety infusion tube for preventing blood backflow for use in delivery rooms according to claim 6, characterized in that: The linkage assembly includes a driving rod (714) fixedly connected to the outside of the driving wheel (615), the end of the driving rod (714) away from the driving wheel (615) is fixedly connected to the driving wheel (713), the outer side of the driving wheel (713) is provided with a belt (712), and the driving wheel (713) is connected to the driven wheel (711) through the belt (712), the outer side of the driven wheel (711) is fixedly connected to a linkage shaft (710), the linkage shaft (710) passes through the bearing seat (71) and is fixedly connected to the rotating rod (72), and the linkage assembly also The invention comprises a second connecting shaft (719) fixedly connected to one end of the rotating rod (72) away from the linkage shaft (710); the end of the second connecting shaft (719) away from the rotating rod (72) is fixedly connected to a third driving wheel (718); a third belt (717) is provided on the outer side of the third driving wheel (718); the third driving wheel (718) is connected to a third driven wheel (716) via the third belt (717); the outer side of the third driven wheel (716) is fixedly connected to a first connecting shaft (715); the first connecting shaft (715) passes through the bearing seat (71) and is fixedly connected to the other rotating rod (72).

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