Automatic liquid changing device for infusion rod

Abstract

The invention relates to the technical field of medical instruments, and discloses an infusion rod automatic liquid changing device which comprises a base, a needle inserting part, a medicine bottle body and a mounting seat, the mounting seat is fixedly mounted on a wall through a bolt, a fixing column is fixedly connected to the top of the base, and the infusion rod automatic liquid changing device further comprises a bottom plate and a needle inserting part, a top plate is fixedly mounted at the top of the bottom plate, a cross rod is hinged to the top of the mounting seat, a plugging assembly is arranged at the top of the top plate, and an adjusting assembly is arranged on the lower portion of the side, away from the mounting seat, of the cross rod; the inserting and pulling assembly comprises a first servo motor and a lead screw part, the first servo motor is fixedly installed at the bottom of the top plate, and a vertical plate is fixedly connected to one side of the bottom of the transverse rod, so that the problems that when an infusion apparatus inserting needle is directly exposed in air during inserting and pulling, the infusion apparatus inserting needle may be contaminated by viruses or bacteria, and risks are brought to infusion are solved; and the device is inconvenient to stably clamp the medicine bottles with different sizes.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to an automatic liquid changing device for an infusion rod. Background Art

[0002] At present, infusion and liquid changing take up most of the workload of nurses. Therefore, an automatic liquid changing device is needed to reduce the workload of nurses, improve the work efficiency of nurses and the comfort of patients, and realize unmanned accompany infusion. In the prior art, there are already relevant automatic liquid changing devices. Due to the differences in the sizes of different types of medicine bottles, the applicability of the medicine bottle fixing device with a single size is not high, and it is not convenient to firmly clamp the medicine bottle for use. Moreover, during the period from the insertion needle of the infusion set being pulled out to being inserted again later, the insertion needle is directly exposed to the air, which may be contaminated with viruses or bacteria, bringing risks to the infusion.

[0003] For example, an automatic liquid changing infusion device with the publication number of CN219462139U includes a frame body, a rotary liquid changing device installed on the frame body, and an automatic needle retracting device located below the rotary liquid changing device. The infusion bag / bottle is installed on the rotary liquid changing device, and the insertion needle of the infusion set is installed on the automatic needle retracting device; by the combined action of the rotary liquid changing device and the automatic needle pushing device, multiple infusion bags / bottles can be installed on the rotary liquid changing device, and the insertion needle of the infusion set is installed on the automatic needle retracting device, and the insertion needle can be automatically moved up and down. When liquid changing is required, the automatic needle retracting device drives the insertion needle to move downward, and then the rotary liquid changing device rotates to drive the next infusion bag / bottle to rotate above the automatic needle retracting device, and then the automatic needle retracting device drives the insertion needle to move upward to pierce the mouth of the infusion bag / bottle, thus realizing automatic liquid changing. However, during the period from the insertion needle of the infusion set being pulled out to being inserted again later, the insertion needle is directly exposed to the air, which may be contaminated with viruses or bacteria, bringing risks to the infusion, and due to the differences in the sizes of different types of medicine bottles, it is not convenient for the device to firmly clamp the medicine bottle.

[0004] Therefore, an automatic liquid changing device for an infusion rod is proposed to solve the above-mentioned problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an automatic liquid changing device for an infusion rod to solve the problems that when the insertion needle of the infusion set is inserted and pulled out, it is directly exposed to the air, which may be contaminated with viruses or bacteria, bringing risks to the infusion, and the device is not convenient to firmly clamp medicine bottles of different sizes.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An automatic liquid changing device for an infusion rod includes a base, an insertion needle part, a medicine bottle main body, and a mounting seat. The mounting seat is fixedly installed on the wall through bolts, and a fixed column is fixedly connected to the top of the base;

[0007] It further includes:

[0008] The bottom plate is fixedly installed at the top of the fixed column. The top of the bottom plate is fixedly installed with a top plate. The top of the mounting seat is hingedly installed with a cross bar;

[0009] The top of the top plate is provided with a plugging and unplugging component. The lower part of the side of the cross bar away from the mounting seat is provided with an adjusting component. The bottom end of the needle inserting part is fixedly installed with a fixed tube. The bottom end of the fixed tube is connected with a needle head part. An infrared infusion monitor is fixedly installed on the outer side of one side of the fixed column. A switch part is fixedly installed on the outer side of the other side of the fixed column;

[0010] The plugging and unplugging component includes a servo motor 1 and a lead screw part. The servo motor 1 is fixedly installed at the bottom of the top plate. The output end of the top plate is fixedly connected with the lead screw part. One side of the bottom of the cross bar is fixedly connected with a vertical plate. One side of the bottom of the vertical plate is fixedly connected with a connecting strip. The end of the connecting strip away from the vertical plate is fixedly connected with a fixed disk. The lead screw part is rotationally connected with the fixed disk;

[0011] The outer side of the lead screw part is threadedly connected with a moving sleeve. One side of the moving sleeve is fixedly connected with a limiting block. The other side of the moving sleeve is fixedly connected with a side block. One side of the top of the top plate is fixedly connected with a vertical rod. The top of the vertical rod is fixedly connected with a fixed ring. An electric heating block is rotatably installed inside the fixed ring. The fixed tube is slidably connected with the electric heating block. The lower outer side of the electric heating block is fixedly connected with an auxiliary strip. The lower outer side of the needle inserting part is fixedly connected with a fixed sleeve;

[0012] The upper outer side of the needle inserting part is fixedly connected with a positioning seat. The inside of the positioning seat is fixedly connected with a lower cylinder. The top of the lower cylinder is fixedly connected with a chassis. The top of the chassis is symmetrically fixedly connected with side rods. The same contact disk is slidably connected to the outer sides of the two side rods. A spring 1 is sleeved on the outer side of the side rod.

[0013] Preferably, the four peripheries of the bottom of the top plate are fixedly connected with support rods. The top plate is fixedly connected with the bottom plate through the support rods. The lead screw part is rotationally connected with the top plate. There are no less than two vertical plates. The number of the connecting strips is the same as that of the vertical plates.

[0014] By adopting the above technical scheme, it is convenient for patients to independently replace the medicine bottle and plug and unplug the needle, avoiding the direct exposure of the needle of the infusion set to the air during plugging and unplugging, reducing the contamination of the needle by viruses or bacteria, and improving the safety of infusion.

[0015] Preferably, the bottom of the connecting strip is fixedly connected with a limiting rod. The limiting rod is slidably connected with the limiting block. The bottom end of the limiting rod is fixedly connected with a stop block. The outer side of the fixed tube is fixedly connected with an outer sleeve ring. The electric heating block is arranged in a cylindrical shape. The outer sleeve ring is slidably connected with the electric heating block.

[0016] By adopting the above technical solution, the limiting rod limits the limiting block and the moving sleeve, making it easier for the moving sleeve to drive the side block to move downward.

[0017] Preferably, the fixing ring is connected to the electric heating block via a bearing, and a toggle bar is fixedly connected to the outer side of the lower part of the screw rod part, and the toggle bar and the auxiliary bar are both arranged in an array.

[0018] By adopting the above technical solution, the toggle bar pushes the auxiliary bar to rotate, and the auxiliary bar drives the electric heating block to rotate, so that the electric heating block can evenly heat the medicine in the fixed tube.

[0019] Preferably, the fixing sleeve is fixedly connected to the side block, the lower tube is threadedly fixed to the positioning seat, the bottom of the contact plate is fixedly connected to an upper tube, and the upper tube is slidably connected to the bottom plate.

[0020] By adopting the above technical solution, when the needle part is pulled out from the main body of the medicine bottle after infusion, the elastic force of spring 1 drives the contact plate and the upper tube to reset, which is used to protect the needle cover of the needle part.

[0021] Preferably, the top end of the side rod is fixedly connected to the contact plate, the bottom end of the side rod is fixedly connected to the bottom plate, and a circular hole is opened in the middle of the contact plate.

[0022] By adopting the above technical solution, the chassis drives the side rod and the contact plate to rise. The contact plate first contacts the bottle mouth end of the medicine bottle body. The contact plate is squeezed, which compresses the spring and drives the upper tube to move downward. The upper tube slides into the lower tube through the chassis, making it easier for the needle of the insertion part to be exposed and inserted into the medicine bottle body.

[0023] Preferably, the adjustment assembly includes a fixed cylinder, a mounting cover and a slide groove, the fixed cylinder is fixedly connected to one end of the cross bar away from the mounting seat, the mounting cover is fixedly connected to the bottom of the fixed cylinder, a servo motor 2 is fixedly installed inside the mounting cover, a rotating disk is rotatably installed at the bottom of the mounting cover, the output end of the servo motor 2 is fixedly connected to the rotating disk, and a limiting ring is symmetrically fixedly connected to the bottom of the rotating disk.

[0024] By adopting the above technical solution, servo motor 2 is started, and servo motor 2 drives the rotating disk to rotate 90 degrees, so that the main body of the next complete medicine bottle is rotated to the use position.

[0025] Preferably, the rotating disk is symmetrically provided with transverse grooves inside, a double-headed screw is rotatably connected inside the transverse groove, one end of the double-headed screw is fixedly connected to a knob, the knob is located outside the rotating disk, the slide grooves are symmetrically provided at the bottom of the rotating disk, the slide grooves are connected to the transverse grooves, the outer side of the double-headed screw is symmetrically threadedly connected with a threaded sleeve, the bottom of the threaded sleeve is fixedly connected to a vertical bar, and the bottom of the vertical bar is fixedly connected to a clamping block.

[0026] By adopting the above technical solution, medical staff rotate the matching knob, which drives the double-headed lead screw to rotate, causing the two threaded sleeves to approach each other. The threaded sleeves drive the vertical bars and the clamping blocks to approach, facilitating the clamping and fixing of the medicine bottle body by the two clamping blocks and enabling centering clamping of the medicine bottle body.

[0027] Preferably, the vertical bar is slidably connected to the sliding groove. Symmetric adsorption grooves are formed at the bottom of the rotating disc. The top of the adsorption groove communicates with the horizontal groove. A top block is fixedly connected above the interior of the adsorption groove. A winding drum is fixedly connected to the outer side of the middle of the double-headed lead screw. A pull rope is wound around the outer side of the winding drum. One end of the pull rope away from the winding drum is fixedly connected to a piston. A second spring is fixedly installed between the piston and the top block.

[0028] By adopting the above technical solution, the double-headed lead screw will also drive the winding drum to rotate. The winding drum winds up the pull rope, and the pull rope drives the piston to slide inside the adsorption groove. The piston compresses the second spring, causing the piston to evacuate the lower part of the adsorption groove, making the space between the bottom surface of the piston and the medicine bottle body negative pressure, facilitating the auxiliary fixation of the medicine bottle body.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] 1. A plug-in and pull-out assembly is provided. When the medicine bottle needs to be replaced, the infrared infusion monitor automatically senses and cuts off the flow. The patient first starts the servo motor 1 to work in the forward direction. The servo motor 1 drives the screw rod part to rotate. The limit rod limits the limit block and the movable sleeve, so that the movable sleeve drives the side block to move downward, and the side block drives the fixed sleeve and the needle part to move downward, so that the needle part is pulled out from the body of the medicine bottle after the infusion. The elastic force of the spring 1 drives the contact plate and the upper tube to reset, which is used to protect the needle cover of the needle part. Then stop the rotation of the servo motor 1. The needle part is connected to the fixed tube with a hard tube, so that the descent of the needle part will drive the descent of the fixed tube. The needle head adopts a soft tube, so that the needle head will not hinder the lifting and moving of the fixed tube. The screw rod part will also drive the toggle bar to rotate, and the toggle bar drives the auxiliary bar to rotate. The auxiliary bar drives the electric heating block to rotate, which is convenient for the electric heating block to evenly heat the medicine in the fixed tube. Then start the servo motor 2 , servo motor 2 drives the rotating disk to rotate 90 degrees, so that the next complete medicine bottle body rotates to the use position, and then servo motor 2 is turned off. At this time, the patient starts servo motor 1 to reverse. At this time, the moving sleeve drives the side block and the needle part to rise and reset, the needle part drives the positioning seat to rise, the positioning seat drives the lower tube and the chassis to rise, and the chassis drives the side rod and the contact plate to rise. The contact plate first contacts the bottle mouth end of the medicine bottle body, and the contact plate is squeezed, which will compress the spring and drive the upper tube to move downward. The upper tube slides into the lower tube through the chassis, so that the needle of the needle part is exposed and inserted into the medicine bottle body, reducing the situation where the needle of the needle part is exposed to the air and contaminated. At this time, stop the work of servo motor 1, and the infrared infusion monitor starts to cut off and reset, so as to realize infusion again, which solves the problem that the needle of the infusion set is directly exposed to the air when it is inserted and pulled out, which may be contaminated with viruses or bacteria, bringing risks to the infusion;

[0031] 2. An adjustment component is provided. The medical staff inverts the medicine bottle body on the inner side of the limit circle with one hand and fits it with the bottom of the rotating disk, and turns the matching knob with the other hand. The knob drives the double-headed screw to rotate, and the vertical bar slides in the slide groove to limit the threaded sleeve, so that the two threaded sleeves are close to each other, and the threaded sleeve drives the vertical bar and the clamping block to be close, which is convenient for the two clamping blocks to clamp and fix the medicine bottle body, and can realize the centering clamping of the medicine bottle body, which is convenient for subsequent infusion. The double-headed screw will also drive the winding drum to rotate, and the winding drum will reel in the pull rope. The pull rope drives the piston to slide inside the adsorption groove, and the piston compresses the second spring, so that the piston pumps air to the lower part of the adsorption groove, so that the space between the bottom surface of the piston and the medicine bottle body is negative pressure, which is convenient for assisting the fixation of the medicine bottle body, improves the clamping and positioning effect of the medicine bottle body, and solves the problem of inconvenience in firmly clamping medicine bottles of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the three-dimensional overall structure of the present invention;

[0033] Figure 2 For the present invention Figure 1Schematic diagram of the enlarged structure at location A in [the relevant context];

[0034] Figure 3 For the present invention Figure 1 Schematic diagram of the enlarged structure at location B in [the relevant context];

[0035] Figure 4 Schematic diagram of the fixed disk installation structure of the present invention;

[0036] Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged structure at location C in [the relevant context];

[0037] Figure 6 Schematic diagram of the moving sleeve structure of the present invention;

[0038] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure at location D in [the relevant context];

[0039] Figure 8 Schematic diagram of the downward movement of the contact disk of the present invention;

[0040] Figure 9 Schematic diagram of the crossbar installation structure of the present invention;

[0041] Figure 10 Schematic diagram of the sectional view of the rotating disk of the present invention;

[0042] Figure 11 For the present invention Figure 10 Schematic diagram of the enlarged structure at location E in [the relevant context];

[0043] Figure 12 Schematic diagram of the clamping block installation structure of the present invention.

[0044] In the figure: 1, base; 2, mounting seat; 3, fixing column; 4, bottom plate; 5, top plate; 6, cross bar; 7, plug-in assembly; 71, servo motor 1; 72, screw rod; 73, vertical plate; 74, connecting bar; 75, fixed plate; 76, movable sleeve; 77, limit block; 78, limit rod; 79, side block; 710, outer ring; 711, vertical rod; 712, fixing ring; 713, toggle bar; 714, auxiliary bar; 715, fixing sleeve; 716, positioning seat; 717, lower cylinder; 718, chassis; 719, side rod; 720, contact plate; 721, spring 1; 722. Upper cylinder; 8. Adjustment assembly; 81. Fixed cylinder; 82. Mounting cover; 83. Servo motor II; 84. Rotating disk; 85. Limiting ring; 86. Horizontal groove; 87. Double-headed screw rod; 88. Knob; 89. Slide groove; 810. Threaded sleeve; 811. Vertical bar; 812. Clamp block; 813. Adsorption groove; 814. Top block; 815. Winding drum; 816. Pull rope; 817. Piston; 818. Spring II; 9. Insertion needle part; 10. Fixed tube; 11. Needle head; 12. Electric heating block; 13. Infrared infusion monitor; 14. Switch part; 15. Medicine bottle body. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] See also Figures 1 - 12 The present invention provides a technical solution: an automatic fluid changing device for an infusion pole, comprising a base 1, a needle insertion portion 9, a medicine bottle body 15 and a mounting seat 2, the mounting seat 2 is fixedly mounted on a wall by bolts, and a fixing column 3 is fixedly connected to the top of the base 1.

[0047] The bottom plate 4 is fixedly mounted on the top of the fixing column 3 , a top plate 5 is fixedly mounted on the top of the bottom plate 4 , and a cross bar 6 is hingedly mounted on the top of the mounting seat 2 .

[0048] A fixed tube 10 is fixedly installed at the bottom end of the needle part 9, and a needle head 11 is connected to the bottom end of the fixed tube 10. An infrared infusion monitor 13 is fixedly installed on one side of the outside of the fixed column 3. The model of the infrared infusion monitor 13 is Farrell FS100. A switch part 14 is fixedly installed on the other side of the outside of the fixed column 3.

[0049] A plug-in assembly 7 is provided on the top of the top plate 5, and the plug-in assembly 7 includes a servo motor 71 and a screw rod portion 72. The servo motor 71 is fixedly installed at the bottom of the top plate 5, and the output end of the top plate 5 is fixedly connected to the screw rod portion 72. A vertical plate 73 is fixedly connected to one side of the bottom of the cross bar 6, and a connecting strip 74 is fixedly connected to one side of the bottom of the vertical plate 73. The end of the connecting strip 74 away from the vertical plate 73 is fixedly connected to a fixed disk 75, and the screw rod portion 72 is rotatably connected to the fixed disk 75.

[0050] The bottom of the top plate 5 is fixedly connected with support rods around, the top plate 5 is fixedly connected to the bottom plate 4 through the support rods, the screw rod part 72 is rotatably connected to the top plate 5, there are no less than two vertical plates 73, and the number of connecting strips 74 is the same as that of the vertical plates 73.

[0051] The outer side of the screw rod part 72 is threadedly connected with a movable sleeve 76, one side of the movable sleeve 76 is fixedly connected to a limiting block 77, the other side of the movable sleeve 76 is fixedly connected to a side block 79, one side of the top of the top plate 5 is fixedly connected to a vertical rod 711, the top of the vertical rod 711 is fixedly connected to a fixing ring 712, the inner side of the fixing ring 712 is rotatably mounted with an electric heating block 12, the fixed tube 10 is slidably connected to the electric heating block 12, the lower outer side of the electric heating block 12 is fixedly connected to an auxiliary strip 714, and the lower outer side of the pin part 9 is fixedly connected to a fixing sleeve 715.

[0052] The bottom of the connecting strip 74 is fixedly connected to a limiting rod 78, the limiting rod 78 is slidably connected to the limiting block 77, the bottom end of the limiting rod 78 is fixedly connected to a stop block, the outer side of the fixed tube 10 is fixedly connected to an outer ring 710, the electric heating block 12 is cylindrically arranged, and the outer ring 710 is slidably connected to the electric heating block 12.

[0053] The fixing ring 712 is connected to the electric heating block 12 through a bearing, and a toggle bar 713 is fixedly connected to the outer side of the lower part of the screw rod part 72. The toggle bar 713 and the auxiliary bar 714 are both arranged in an array.

[0054] The upper outer side of the pin portion 9 is fixedly connected with a positioning seat 716, the interior of the positioning seat 716 is fixedly connected with a lower tube 717, the top of the lower tube 717 is fixedly connected with a chassis 718, the top of the chassis 718 is symmetrically fixedly connected with side rods 719, the outer sides of the two side rods 719 are slidably connected with the same contact disk 720, and the outer sides of the side rods 719 are sleeved with a spring 721.

[0055] The fixing sleeve 715 is fixedly connected to the side block 79, the lower tube 717 is threadedly fixed to the positioning seat 716, the bottom of the contact plate 720 is fixedly connected to the upper tube 722, the upper tube 722 is slidably connected to the bottom plate 718, the top end of the side rod 719 is fixedly connected to the contact plate 720, the bottom end of the side rod 719 is fixedly connected to the bottom plate 718, and a circular hole is opened in the middle of the contact plate 720.

[0056] Embodiment 1:Figures 1 - 8 As shown, when the medicine bottle needs to be replaced, the infrared infusion monitor 13 automatically senses and cuts off the flow. The patient first starts the servo motor 71 to work in the forward direction. The servo motor 71 drives the screw part 72 to rotate, and the limit rod 78 limits the limit block 77 and the movable sleeve 76, so that the movable sleeve 76 drives the side block 79 to move downward, and the side block 79 drives the fixed sleeve 715 and the needle part 9 to move downward, so that the needle part 9 is pulled out from the finished medicine bottle body 15, and the elastic force of the spring 721 drives the contact plate 720 and the upper tube 722 to reset, which is used to protect the needle cover of the needle part 9.

[0057] Then stop the rotation of servo motor 71, and the needle part 9 is connected to the fixed tube 10 by a hard tube, so that the lowering of the needle part 9 will drive the fixed tube 10 to move downward, and the needle head 11 adopts a soft tube, so that the needle head 11 will not hinder the lifting and lowering movement of the fixed tube 10, and the screw rod part 72 will also drive the toggle bar 713 to rotate, and the toggle bar 713 drives the auxiliary bar 714 to rotate, and the auxiliary bar 714 drives the electric heating block 12 to rotate, so that the electric heating block 12 can evenly heat the medicine in the fixed tube 10.

[0058] The servo motor 2 83 is started, and the servo motor 2 83 drives the rotating disk 84 to rotate 90 degrees, so that the next complete medicine bottle body 15 is rotated to the use position, and the servo motor 2 83 is turned off. At this time, the patient starts the servo motor 1 71 to reverse, and the movable sleeve 76 drives the side block 79 and the needle insertion part 9 to rise and reset, and the needle insertion part 9 drives the positioning seat 716 to rise, and the positioning seat 716 drives the lower cylinder 717 and the bottom plate 718 to rise, and the bottom plate 718 drives the side rod 719 and the contact plate 720 to rise, and the contact plate 720 first contacts the bottle mouth of the medicine bottle body 15 At the end, the contact plate 720 is squeezed, which will compress the spring 721 and drive the upper tube 722 to move downward. The upper tube 722 slides into the lower tube 717 through the bottom plate 718, so that the needle of the needle part 9 is exposed and inserted into the medicine bottle body 15, which reduces the exposure of the needle of the needle part 9 to the air and contamination. At this time, the servo motor 71 is stopped and the infrared infusion monitor 13 is turned on to cut off and reset, so as to achieve infusion again, which solves the problem that the needle of the infusion set is directly exposed to the air when being inserted and pulled out, and may be contaminated with viruses or bacteria, which brings risks to the infusion.

[0059] An adjustment assembly 8 is provided at the lower part of one side of the cross bar 6 away from the mounting seat 2, and the adjustment assembly 8 includes a fixed cylinder 81, a mounting cover 82 and a slide groove 89. The fixed cylinder 81 is fixedly connected to the end of the cross bar 6 away from the mounting seat 2, and the mounting cover 82 is fixedly connected to the bottom of the fixed cylinder 81. A servo motor 83 is fixedly installed inside the mounting cover 82, and a rotating disk 84 is rotatably installed at the bottom of the mounting cover 82. The output end of the servo motor 83 is fixedly connected to the rotating disk 84, and a limit ring 85 is symmetrically fixedly connected to the bottom of the rotating disk 84.

[0060] The interior of the rotating disc 84 is symmetrically provided with transverse grooves 86. A double-headed screw rod 87 is rotatably connected inside the transverse grooves 86. One end of the double-headed screw rod 87 is fixedly connected with a knob 88. The knob 88 is located outside the rotating disc 84. Slide grooves 89 are symmetrically opened at the bottom of the rotating disc 84. The slide grooves 89 communicate with the transverse grooves 86. Threaded sleeves 810 are symmetrically threadedly connected to the outer side of the double-headed screw rod 87. The bottom of the threaded sleeve 810 is fixedly connected with a vertical bar 811. The bottom of the vertical bar 811 is fixedly connected with a clamping block 812.

[0061] The vertical bar 811 is slidably connected with the slide groove 89. Suction grooves 813 are symmetrically opened at the bottom of the rotating disc 84. The top of the suction grooves 813 communicates with the transverse grooves 86. A top block 814 is fixedly connected to the upper part inside the suction grooves 813. A winding drum 815 is fixedly connected to the outer side of the middle part of the double-headed screw rod 87. A pull rope 816 is wound around the outer side of the winding drum 815. One end of the pull rope 816 away from the winding drum 815 is fixedly connected with a piston 817. A second spring 818 is fixedly installed between the piston 817 and the top block 814.

[0062] Embodiment 2: As Figures 9 - 12 shown, a medical staff holds the medicine bottle body 15 upside down inside the limiting ring 85 with one hand and makes it fit with the bottom of the rotating disc 84. With the other hand, the medical staff rotates the matching knob 88. The knob 88 drives the double-headed screw rod 87 to rotate. The vertical bar 811 slides in the slide groove 89 to limit the threaded sleeve 810, so that the two threaded sleeves 810 approach each other. The threaded sleeve 810 drives the vertical bar 811 and the clamping block 812 to approach, facilitating the clamping and fixing of the medicine bottle body 15 by the two clamping blocks 812, and can realize the centering clamping of the medicine bottle body 15, which is convenient for subsequent infusion use. The double-headed screw rod 87 adopts a model with a large pitch, so that when the threaded sleeve 810 moves, the double-headed screw rod 87 only needs to rotate a small number of turns.

[0063] The double-headed screw rod 87 also drives the winding drum 815 to rotate. The winding drum 815 winds up the pull rope 816. The pull rope 816 drives the piston 817 to slide inside the suction groove 813. The piston 817 compresses the second spring 818, so that the piston 817 evacuates the lower part of the suction groove 813, making the space between the bottom surface of the piston 817 and the medicine bottle body 15 in negative pressure, which is convenient for assisting in fixing the medicine bottle body 15 and improves the clamping and positioning effect of the medicine bottle body 15, solving the problem of inconveniently and firmly clamping medicine bottles of different sizes.

[0064] Working principle: When using this device, first, as Figures 1 - 12As shown, when the medicine bottle needs to be replaced, the infrared infusion monitor 13 automatically senses and shuts off the flow. The patient first starts the first servo motor 71 to rotate forward. The side block 79 drives the fixing sleeve 715 and the needle inserting part 9 to move downward, so that the needle inserting part 9 is pulled out from the emptied medicine bottle body 15. The elastic force of the first spring 721 drives the contact disc 720 and the upper cylinder 722 to reset, which is used to protect the needle inserting cover of the needle inserting part 9. The electric heating block 12 uniformly heats the medicine in the fixed tube 10. Then the rotation of the first servo motor 71 is stopped. Next, the second servo motor 83 is started. The second servo motor 83 drives the rotating disc 84 to rotate 90 degrees. After the next complete medicine bottle body 15 is rotated to the use position, the second servo motor 83 is turned off. At this time, the patient starts the first servo motor 71 to rotate in reverse again. The contact disc 720 first contacts the bottle mouth end of the medicine bottle body 15. The contact disc 720 is squeezed, which will compress the first spring 721 and drive the upper cylinder 722 to move downward. The upper cylinder 722 slides into the lower cylinder 717 through the chassis 718, which is convenient for the needle of the needle inserting part 9 to be exposed and inserted into the medicine bottle body 15, reducing the situation that the needle of the needle inserting part 9 is exposed to the air and contaminated. At this time, the operation of the first servo motor 71 is stopped, and the infrared infusion monitor 13 starts the shut-off reset, so as to realize the re-infusion.

[0065] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0066] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic liquid-changing device for an infusion rod, comprising a base (1), a needle-inserting part (9), a medicine bottle main body (15), and a mounting seat (2). The mounting seat (2) is fixedly installed on the wall by bolts, and a fixing column (3) is fixedly connected to the top of the base (1); It is characterized in that It further includes: A bottom plate (4) fixedly installed at the top of the fixing column (3). A top plate (5) is fixedly installed on the top of the bottom plate (4). A cross bar (6) is hingedly installed on the top of the mounting seat (2); A plugging and unplugging assembly (7) is arranged on the top of the top plate (5). An adjusting assembly (8) is arranged at the lower part on the side of the cross bar (6) away from the mounting seat (2). A fixing tube (10) is fixedly installed at the bottom end of the needle-inserting part (9). The bottom end of the fixing tube (10) is connected to a needle head part (11). An infrared infusion monitor (13) is fixedly installed on one side of the outer part of the fixing column (3), and a switch part (14) is fixedly installed on the other side of the outer part of the fixing column (3); The plugging and unplugging assembly (7) includes a servo motor one (71) and a lead screw part (72). The servo motor one (71) is fixedly installed at the bottom of the top plate (5), and the output end of the top plate (5) is fixedly connected to the lead screw part (72). A vertical plate (73) is fixedly connected to one side of the bottom of the cross bar (6). A connecting strip (74) is fixedly connected to one side of the bottom of the vertical plate (73). One end of the connecting strip (74) away from the vertical plate (73) is fixedly connected to a fixing disc (75). The lead screw part (72) is rotationally connected to the fixing disc (75); A moving sleeve (76) is threadedly connected to the outer side of the lead screw part (72). A limiting block (77) is fixedly connected to one side of the moving sleeve (76), and a side block (79) is fixedly connected to the other side of the moving sleeve (76). A vertical rod (711) is fixedly connected to one side of the top of the top plate (5). A fixing ring (712) is fixedly connected to the top of the vertical rod (711). An electric heating block (12) is rotatably installed inside the fixing ring (712). The fixing tube (10) is slidably connected to the electric heating block (12). An auxiliary strip (714) is fixedly connected to the outer side of the lower part of the electric heating block (12), and a fixing sleeve (715) is fixedly connected to the outer side of the lower part of the needle-inserting part (9); A positioning seat (716) is fixedly connected to the outer side of the upper part of the needle-inserting part (9). A lower cylinder (717) is fixedly connected to the inside of the positioning seat (716). A chassis (718) is fixedly connected to the top of the lower cylinder (717). Side rods (719) are symmetrically fixedly connected to the top of the chassis (718). The same contact disc (720) is slidably connected to the outer sides of the two side rods (719). A first spring (721) is sleeved on the outer side of the side rod (719).

2. The automatic fluid replacement device for an infusion rod according to claim 1, wherein: Support rods are fixedly connected to the four peripheries of the bottom of the top plate (5). The top plate (5) is fixedly connected to the bottom plate (4) through the support rods. The lead screw part (72) is rotationally connected to the top plate (5). The number of the vertical plates (73) is not less than two, and the number of the connecting strips (74) is the same as that of the vertical plates (73).

3. The automatic liquid changing device for an infusion rod according to claim 2, characterized in that: The bottom of the connecting strip (74) is fixedly connected to a limiting rod (78), the limiting rod (78) is slidably connected to a limiting block (77), the bottom end of the limiting rod (78) is fixedly connected to a stop block, the outer side of the fixed tube (10) is fixedly connected to an outer ring (710), the electric heating block (12) is cylindrical, and the outer ring (710) is slidably connected to the electric heating block (12).

4. The automatic liquid changing device for an infusion rod according to claim 1, wherein: The fixing ring (712) is connected to the electric heating block (12) via a bearing, and a toggle bar (713) is fixedly connected to the outer side of the lower part of the screw rod portion (72), and the toggle bar (713) and the auxiliary bar (714) are both arranged in an array.

5. The automatic liquid changing device for an infusion rod according to claim 4, characterized in that: The fixing sleeve (715) is fixedly connected to the side block (79), the lower tube (717) is threadedly fixed to the positioning seat (716), the bottom of the contact plate (720) is fixedly connected to the upper tube (722), and the upper tube (722) is slidably connected to the bottom plate (718).

6. The automatic fluid replacement device for an infusion rod according to claim 5, characterized in that: The top end of the side rod (719) is fixedly connected to the contact plate (720), the bottom end of the side rod (719) is fixedly connected to the bottom plate (718), and a circular hole is opened in the middle of the contact plate (720).

7. The automatic liquid changing device for an infusion rod according to claim 1, characterized in that: The adjustment assembly (8) comprises a fixed cylinder (81), a mounting cover (82) and a slide groove (89); the fixed cylinder (81) is fixedly connected to one end of the cross bar (6) away from the mounting seat (2); the mounting cover (82) is fixedly connected to the bottom of the fixed cylinder (81); a servo motor 2 (83) is fixedly installed inside the mounting cover (82); a rotating disk (84) is rotatably installed at the bottom of the mounting cover (82); an output end of the servo motor 2 (83) is fixedly connected to the rotating disk (84); and a limit ring (85) is symmetrically fixedly connected to the bottom of the rotating disk (84).

8. An automatic fluid replacement device for an infusion rod according to claim 7, characterized in that: The rotating disk (84) is symmetrically provided with a transverse groove (86), the transverse groove (86) is rotatably connected with a double-headed screw rod (87), one end of the double-headed screw rod (87) is fixedly connected with a knob (88), the knob (88) is located outside the rotating disk (84), the slide groove (89) is symmetrically provided at the bottom of the rotating disk (84), the slide groove (89) is connected with the transverse groove (86), the outer side of the double-headed screw rod (87) is symmetrically threadedly connected with a threaded sleeve (810), the bottom of the threaded sleeve (810) is fixedly connected with a vertical bar (811), and the bottom of the vertical bar (811) is fixedly connected with a clamping block (812).

9. The automatic transfusion fluid changing device for an infusion rod according to claim 8, characterized in that: The vertical bar (811) is slidably connected to the sliding groove (89). Symmetrically arranged adsorption grooves (813) are formed at the bottom of the rotating disc (84). The top of the adsorption groove (813) communicates with the horizontal groove (86). A top block (814) is fixedly connected above the interior of the adsorption groove (813). A winding drum (815) is fixedly connected to the outer side of the middle of the double-headed lead screw (87). A pull rope (816) is wound around the outer side of the winding drum (815). One end of the pull rope (816) far from the winding drum (815) is fixedly connected to a piston (817). A second spring (818) is fixedly installed between the piston (817) and the top block (814).

Images