CN112755334A

CN112755334A - Cardiovascular contrast medium injection device for cardiovascular angiography examination in cardiovascular medicine and implementation method thereof

Info

Publication number: CN112755334A
Application number: CN202110043086.6A
Authority: CN
Inventors: 于海波; 林吉雪; 汝连红; 张黎黎; 张亚玲
Original assignee: Jiamusi University
Current assignee: Jiamusi University
Priority date: 2021-01-13
Filing date: 2021-01-13
Publication date: 2021-05-07

Abstract

The invention discloses a cardiovascular angiography examination contrast agent injection device for the cardiovascular department, and also discloses an implementation method of the cardiovascular angiography examination contrast agent injection device for the cardiovascular department. The device is before the contrast medium with storing up in the agent jar is inputed the inner tube, can reciprocate to press and press the gasbag, through pressing the gasbag to storing up in the agent jar input air and arouse the air turbulence, utilize the air current that its produced to drive the pivot and rotate and continuously stir the contrast medium through the stirring leaf that the pivot upper end is connected, prevent that the contrast medium from taking place to deposit and becoming the fritter, in retransferring the inner tube with the contrast medium simultaneously, make things convenient for the contrast medium to carry out subsequent injection, the length that simultaneously can also pull out through the liquid blocking plectane is convenient for control the contrast medium volume that gets into in the inner tube.

Description

Cardiovascular contrast medium injection device for cardiovascular angiography examination in cardiovascular medicine and implementation method thereof

Technical Field

The invention relates to the technical field of medical instruments, in particular to a cardiovascular angiography examination contrast agent injection device for a cardiovascular department and an implementation method thereof.

Background

Contrast agents are chemicals that are injected or administered into human tissues or organs in order to enhance the visual effect. These articles are denser or less dense than the surrounding tissue and the contrast produced is imaged with some instruments. Since many tissue structures of the human body are not visualized on X-ray film, they can only be highlighted by using contrast agents, and some X-ray examination techniques, such as angiography, will not be performed away from the contrast agents. Although contrast media is not always necessary in some techniques, the use of contrast media will make the diagnostic image clearer, thereby helping the physician make a more reliable diagnosis for you. At present, the most commonly used method for infusing contrast medium is to extract contrast medium by a contrast medium syringe, directly or indirectly connect with a contrast catheter and inject the contrast medium, so that the contrast medium is injected into the cardiovascular, and contrast the cardiovascular to determine the lesion position or the lesion condition.

After the existing contrast agent is poured into an injector, the contrast agent needs turbid liquid to precipitate in the process of interventional injection of the contrast agent, so that the contrast effect is not ideal, if the contrast agent is injected into a human body after being agglomerated, the body can be injured, and extra pain can be caused to a patient when the flow rate of the contrast agent is large.

Aiming at the problems, the invention provides a contrast agent injection device for cardiovascular angiography examination in cardiovascular medicine and an implementation method thereof, and the contrast agent injection device has the advantages of good contrast effect, small possibility of the contrast agent agglomeration, uniform contrast agent flow rate and the like.

Disclosure of Invention

The invention aims to provide a contrast agent injection device for cardiovascular angiography examination in cardiovascular medicine and an implementation method thereof, which have the advantages of better contrast effect, small possibility of forming contrast agent blocks, uniform flow rate of the contrast agent and the like and can solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the contrast agent injection device for cardiovascular angiography examination in the cardiovascular department comprises a contrast agent injection mechanism and a sleeve hydraulic driving mechanism, wherein the sleeve hydraulic driving mechanism is sleeved on the outer side of the bottom end of the contrast agent injection mechanism, the contrast agent injection mechanism comprises a front tube injection tube, a working flow tube, a fixed bottom tube and a contrast agent input structure, a plurality of groups of internal thread grooves are formed in the inner wall of the front tube injection tube in the circumferential direction, a limiting spiral ring is fixedly arranged in the center of the outer wall of the front end of the front tube injection tube, an injection needle tube is screwed on the outer side of the limiting spiral ring, an insertion tube is arranged at one end of the working flow tube close to the front tube injection tube, external threads corresponding to the internal thread grooves are arranged on the outer wall of the insertion tube in the circumferential direction, the insertion tube is screwed with the front tube injection tube through the external threads and matched with the internal thread grooves, and a liquid level scale line, the bottom end of the working flow pipe barrel is connected with a fixed bottom barrel, a limiting barrel is fixedly arranged in the center of the bottom surface of the fixed bottom barrel, a contrast agent input structure is screwed on the outer wall of one side, close to the fixed bottom barrel, of the working flow pipe barrel, the liquid outlet end of the contrast agent input structure is communicated with the inner cavity of the working flow pipe barrel, and a sleeve disc hydraulic driving mechanism is sleeved on the outer wall of the fixed bottom barrel;

the sleeve disc hydraulic driving mechanism comprises a limiting sleeve disc body and a miniature hydraulic cylinder, the miniature hydraulic cylinder is fixedly arranged on the outer wall of one side, away from the front pipe injection cylinder, of the limiting sleeve disc body, a piston push rod is arranged at the output end of the miniature hydraulic cylinder, a limiting sleeve hole is machined in the inner cavity of the limiting sleeve disc body, and the limiting sleeve disc body is sleeved with a fixed bottom cylinder through the limiting sleeve hole.

Furthermore, a conical injection needle is arranged at the top end of the injection needle tube, an injection hole is processed at the front end of the outer wall of the conical injection needle, four groups of bottom rods are uniformly arranged on the outer wall of the front end of the front tube injection tube along the periphery of the limiting spiral ring, the front ends of the bottom rods are movably connected with telescopic rods, and vacuum suction cups are fixedly arranged at the top ends of the telescopic rods.

Furthermore, an electric heating sleeve is movably mounted on the outer side of the working flow pipe barrel, a starting button is arranged on the outer wall of the electric heating sleeve, an inner pipe is arranged in the inner cavity of the working flow pipe barrel, and the front end of the inner pipe is communicated with the inner cavity of the front pipe injection barrel.

Further, the bottom of the fixed bottom cylinder is provided with a piston rotating rod, the inner side of the piston rotating rod penetrates through the limiting cylinder and stretches into the inner cavity of the inner pipe, a plurality of groups of extrusion piston column assemblies are arranged on the outer wall of the inner side of the piston rotating rod and located in the inner cavity of the inner pipe, the top end of the outer side of the piston rotating rod is connected with a fixed cylinder, and the outer side surface of the fixed cylinder is provided with a jack.

Further, extrusion piston column subassembly includes a plurality of groups rubber column ring and arc locking piece, and the surface machining of rubber column ring has the column ring through-hole, connects through a location section of thick bamboo between the rubber column ring, just is provided with a plurality of groups vibration elastic component on the circumferencial direction between the adjacent rubber column ring.

Further, the contrast agent input structure comprises an agent storage tank, an outer sleeve and a liquid discharge pipe, the outer sleeve is installed on the outer side of the agent storage tank, an agent inlet valve pipe is arranged on the outer wall of the outer sleeve, a liquid discharge pipe is arranged at the bottom end of the agent storage tank, the bottom end of the liquid discharge pipe is connected with the working flow pipe barrel through a screwed pipe in a threaded mode, and the bottom end of the liquid discharge pipe is communicated with the inner cavity of the inner pipe.

Furthermore, a rotating shaft is arranged at the bottom end of an inner cavity of the agent storage tank, a stirring blade is installed at the top end of the rotating shaft, a pressing air bag is arranged at the top end of the agent storage tank, the bottom end of the pressing air bag is communicated with the inner cavity of the agent storage tank, a push-pull rod is installed on the outer side of the liquid discharge pipe, a pull ring is fixedly arranged on the outer side of the push-pull rod, the inner side of the push-pull rod extends into the inner cavity of the liquid discharge pipe, and a liquid.

Furthermore, a positioning rod is installed on one side of the outer wall of the piston push rod, a micro motor is fixedly arranged on one side, close to the fixing barrel, of the positioning rod, a rotary column is arranged at the output end of the micro motor, and the other end of the rotary column is inserted into the inner cavity of the insertion hole and connected with the piston rotary rod.

The invention provides another technical scheme that: the implementation method of the contrast agent injection device for cardiovascular contrast examination in the cardiovascular department is provided, and comprises the following steps:

s1: inputting a contrast agent into the agent storage tank through the agent inlet valve pipe, and simultaneously pressing the pressing air bag in a reciprocating manner, driving the stirring blade to rotate by utilizing air input into the agent storage tank by the pressing air bag, and stirring the contrast agent;

s2: after the air bag is pressed for a period of time, the pull ring is pulled outwards and synchronously drives the liquid blocking circular plate to move outwards, and meanwhile, the contrast agent in the agent storage tank flows into the inner pipe through the liquid dropping pipe;

s3: after the contrast agent completely flows into the inner tube, the pull ring can be pushed inwards, one end of the liquid blocking circular plate is propped against the inner wall of the liquid dropping tube, and meanwhile, the telescopic rod is adjusted to be in a proper length and the vacuum chuck is enabled to suck the periphery of the skin of the injection point of the examinee;

s4: the micro hydraulic cylinder and the micro motor are synchronously started, the piston push rod moves inwards, the piston rotating rod and the extrusion piston column assembly are driven to move towards the direction of the injection needle tube, and the contrast medium entering the inner tube is pushed into the injection needle tube and is injected into the body of the examined person through the injection hole.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention provides a cardiovascular contrast medium injection device for cardiovascular contrast examination in cardiovascular medicine and an implementation method thereof, the bottom end of the inner cavity of the agent storage tank is provided with a rotating shaft, the top end of the rotating shaft is provided with a stirring blade, the top end of the agent storage tank is provided with a pressing air bag, the bottom end of the pressing air bag is communicated with the inner cavity of the agent storage tank, so that before the contrast agent in the agent storage tank is input into the inner tube, the pressing air bag can be pressed in a reciprocating way, air is input into the agent storage tank through the pressing air bag and causes air turbulence, the air flow generated by the pressing air bag drives the rotating shaft to rotate and continuously stirs the contrast agent through the stirring blade connected with the upper end of the rotating shaft, the contrast agent is prevented from being precipitated and agglomerated into small blocks, meanwhile, the contrast agent is transferred into the inner tube, so that the contrast agent can be conveniently injected subsequently, and the contrast agent amount entering the inner tube can be conveniently controlled by the length of the liquid blocking round plate which is pulled out.

2. The invention provides a contrast medium injection device for cardiovascular angiography examination in cardiovascular medicine and an implementation method thereof, wherein the output end of a micro motor is provided with a rotary column, the other end of the rotary column is inserted into the inner cavity of a jack and is connected with a piston rotary rod, a plurality of groups of vibration elastic parts are arranged between adjacent rubber column rings and along the circumferential direction, so that when injecting the contrast medium, medical personnel can drive a piston push rod to be extruded inwards at a constant speed through a micro hydraulic cylinder so as to drive an extrusion piston column component to inject the contrast medium in an inner tube into a detected body at a constant speed, thereby avoiding the phenomenon that the contrast medium leaks out of blood vessels due to the high pressure and high speed of the high pressure injection of the contrast medium and the blood vessel factors of a patient, and if the treatment is not timely or improper, light patients have local swelling, pain and extravasated blood, and heavy patients cause necrosis of surrounding subcutaneous tissues and even, meanwhile, the piston rotating rod can drive the rotating column to rotate slowly through the micro motor in the inward moving process, so that the contrast agent is prevented from standing, precipitating and forming small blocks.

3. The invention provides a contrast medium injection device for cardiovascular angiography examination in cardiovascular department and an implementation method thereof.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the cardiovascular contrast medium injection device for cardiovascular contrast examination in the cardiovascular department;

FIG. 2 is a schematic diagram of a disassembled structure of the cardiovascular contrast medium injection device for cardiovascular contrast examination in the cardiovascular department of the invention;

FIG. 3 is a schematic diagram of the structure of the contrast agent injection mechanism of the contrast agent injection device for cardiovascular contrast examination in the cardiovascular department according to the present invention;

FIG. 4 is a schematic view of the mounting structure of the extrusion piston-cylinder assembly of the contrast medium injection device for cardiovascular angiography examination in the cardiovascular department according to the present invention;

FIG. 5 is a schematic diagram of the contrast agent input structure of the contrast agent injection device for cardiovascular contrast examination in the cardiovascular department of the invention;

FIG. 6 is a plan view of the interior of the contrast agent input structure of the contrast agent injection device for cardiovascular contrast examination in cardiovascular medicine of the present invention;

FIG. 7 is a schematic structural diagram of a sleeve hydraulic driving mechanism of the contrast medium injection device for cardiovascular angiography in the cardiovascular department of the invention;

FIG. 8 is a schematic diagram of the configuration of the extruded piston-cylinder assembly of the contrast media injector for cardiovascular angiography of cardiovascular medicine according to the present invention;

fig. 9 is an enlarged schematic structural diagram of a part a in fig. 8 of the cardiovascular contrast medium injection device for cardiovascular contrast examination in the cardiovascular department of the invention.

In the figure: 1. a contrast agent injection mechanism; 11. a front tube injection barrel; 111. an internal thread groove; 112. a limiting spiral ring; 1121. injecting a needle tube; 1122. a conical injection needle; 11221. an injection hole; 113. a bottom bar; 1131. a telescopic rod; 11311. a vacuum chuck; 12. a working flow tube barrel; 121. inserting a cylinder; 1211. an external thread; 122. liquid level scale marks; 123. an electrically heated sleeve; 1231. a start button; 124. an inner tube; 13. fixing the bottom cylinder; 131. a limiting cylinder body; 132. a piston rotating rod; 1321. a fixed cylinder; 13211. a jack; 133. extruding the piston column assembly; 1331. a rubber collar; 13311. a collar through hole; 13312. a positioning cylinder; 13313. a vibrating elastic member; 1332. an arc-shaped locking member; 14. a contrast agent input structure; 141. a storage tank; 1411. a rotating shaft; 14111. stirring blades; 1412. pressing the air bag; 142. an outer collar; 1421. a feeding valve pipe; 143. a liquid discharging pipe; 1431. a solenoid; 1432. a push-pull rod; 14321. a pull ring; 14322. a liquid-blocking circular plate; 2. a sleeve disc hydraulic driving mechanism; 21. a limiting sleeve disc body; 211. limiting sleeve holes; 22. a micro hydraulic cylinder; 221. a piston push rod; 2211. positioning a rod; 2212. a micro motor; 22121. and (4) rotating the column.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4 and 8-9, the contrast medium injection device for cardiovascular angiography examination in cardiovascular medicine comprises a contrast medium injection mechanism 1 and a sleeve hydraulic driving mechanism 2, the sleeve hydraulic driving mechanism 2 is sleeved outside the bottom end of the contrast medium injection mechanism 1, the contrast medium injection mechanism 1 comprises a front tube injection tube 11, a working flow tube 12, a fixed bottom tube 13 and a contrast medium input structure 14, a plurality of groups of internal thread grooves 111 are formed in the inner wall of the front tube injection tube 11 along the circumferential direction, a limit spiral ring 112 is fixedly arranged at the center of the outer wall of the front end of the front tube injection tube 11, an injection needle tube 1121 is screwed on the outer side of the limit spiral ring 112, an insertion tube 121 is arranged at one end of the working flow tube 12 close to the front tube injection tube 11, an external thread 1211 corresponding to the internal thread grooves 111 is arranged on the outer wall of the insertion tube 121 along the circumferential direction, the insertion tube 121 is screwed with the front tube injection tube 11 through the external thread 1211, and the external thread 1211, a liquid level scale mark 122 is arranged on the outer wall of the working flow tube barrel 12 close to the edge, the bottom end of the working flow tube barrel 12 is connected with a fixed bottom barrel 13, a limiting barrel 131 is fixedly arranged at the center of the bottom surface of the fixed bottom barrel 13, a contrast agent input structure 14 is screwed on the outer wall of one side of the working flow tube barrel 12 close to the fixed bottom barrel 13, the liquid outlet end of the contrast agent input structure 14 is communicated with the inner cavity of the working flow tube barrel 12, and a sleeve disc hydraulic driving mechanism 2 is sleeved on the outer wall of the fixed bottom barrel 13; the top end of the injection needle tube 1121 is provided with a conical injection needle 1122, the front end of the outer wall of the conical injection needle 1122 is processed with an injection hole 11221, four groups of bottom rods 113 are uniformly arranged on the outer wall of the front end of the front tube injection tube 11 along the periphery of the limiting spiral ring 112, the front end of each bottom rod 113 is movably connected with a telescopic rod 1131, and the top end of each telescopic rod 1131 is fixedly provided with a vacuum chuck 11311, so that before contrast medium injection, the outer wall of the working flow tube 12 can be heated through the electric heating sleeve 123 to indirectly conduct heat to the contrast medium in the inner tube 124, so that the contrast medium is at a proper temperature for a human body, and meanwhile, when the conical injection needle 1122 is used for injecting the contrast medium into an examinee, the periphery of the skin at the injection point of the examinee can be sucked through the vacuum chuck 11311, so that the position of; an electric heating sleeve 123 is movably mounted on the outer side of the working flow barrel 12, a starting button 1231 is arranged on the outer wall of the electric heating sleeve 123, an inner tube 124 is arranged in the inner cavity of the working flow barrel 12, and the front end of the inner tube 124 is communicated with the inner cavity of the front tube injection barrel 11; the bottom end of the fixed bottom cylinder 13 is provided with a piston rotating rod 132, the inner side of the piston rotating rod 132 penetrates through the limiting cylinder 131 and extends into the inner cavity of the inner tube 124, the outer wall of the inner side of the piston rotating rod 132 is provided with a plurality of groups of extrusion piston column assemblies 133, the extrusion piston column assemblies 133 are positioned in the inner cavity of the inner tube 124, the top end of the outer side of the piston rotating rod 132 is connected with a fixed cylinder 1321, and the surface of the outer side of the fixed cylinder 1321 is provided with an insertion hole 13211; the extrusion piston-cylinder assembly 133 includes a plurality of sets of rubber cylinders 1331 and arc-shaped locking pieces 1332, wherein cylinder through holes 13311 are formed on the surface of the rubber cylinders 1331, the rubber cylinders 1331 are connected with each other through a positioning cylinder 13312, and a plurality of sets of vibration elastic pieces 13313 are arranged between the adjacent rubber cylinders 1331 and along the circumferential direction.

Referring to fig. 2 and 7, in the contrast medium injection device for cardiovascular angiography examination in the cardiovascular department, the sleeve disc hydraulic driving mechanism 2 comprises a limiting sleeve disc body 21 and a micro hydraulic cylinder 22, the micro hydraulic cylinder 22 is fixedly arranged on the outer wall of one side of the limiting sleeve disc body 21, which is far away from the front tube injection tube 11, the output end of the micro hydraulic cylinder 22 is provided with a piston push rod 221, a limiting sleeve hole 211 is machined in the inner cavity of the limiting sleeve disc body 21, and the limiting sleeve disc body 21 is sleeved and fixed on the bottom tube 13 through the limiting sleeve hole 211; a positioning rod 2211 is arranged on one side of the outer wall of the piston push rod 221, a micro motor 2212 is fixedly arranged on one side of the positioning rod 2211 close to the fixed cylinder 1321, a rotating column 22121 is arranged at the output end of the micro motor 2212, the other end of the rotating column 22121 is inserted into the inner cavity of the insertion hole 13211 and connected with the piston rotating rod 132, so that when medical staff inject the contrast agent, the piston push rod 221 can be pulled inwards at a constant speed through the micro hydraulic cylinder 22 to drive the extrusion piston column assembly 133 to inject the contrast agent in the inner tube 124 into a detected body at a constant speed, the situation that the contrast agent is injected at a constant speed due to high pressure and high speed and the contrast agent leaks out of blood vessels due to the blood vessel factors of a patient is avoided, and if the contrast agent is not treated or treated improperly in time, a light person has local swelling, pain and extravasation, and extravasation of blood stasis, a heavy person causes necrosis of surrounding subcutaneous tissues and even functional disorder, pain is increased to the patient, and, preventing the contrast agent from standing, precipitating and forming small blocks.

Referring to fig. 2 and fig. 5-6, in the contrast medium injection device for cardiovascular contrast examination in cardiovascular medical department, the contrast medium input structure 14 includes a medium storage tank 141, an outer collar 142 and a liquid discharging tube 143, the outer side of the medium storage tank 141 is provided with the outer collar 142, the outer wall of the outer collar 142 is provided with a medium inlet valve tube 1421, the bottom end of the medium storage tank 141 is provided with the liquid discharging tube 143, the bottom end of the liquid discharging tube 143 is screwed with the working flow tube 12 through a screw tube 1431, and the bottom end of the liquid discharging tube 143 is communicated with the inner cavity of the inner tube 124; the bottom end of the inner cavity of the agent storage tank 141 is provided with a rotating shaft 1411, the top end of the rotating shaft 1411 is provided with a stirring blade 14111, the top end of the agent storage tank 141 is provided with a pressing air bag 1412, the bottom end of the pressing air bag 1412 is communicated with the inner cavity of the agent storage tank 141, the outer side of the lower liquid pipe 143 is provided with a push-pull rod 1432, the outer side of the push-pull rod 1432 is fixedly provided with a pull ring 14321, the inner side of the push-pull rod 1432 extends into the inner cavity of the lower liquid pipe 143, and the top end of the push-pull rod 1432 is connected with a liquid blocking circular plate 14322, so that the pressing air bag 1412 can be pressed in a reciprocating manner before the contrast agent in the agent storage tank 141 is input into the inner pipe 124, air is input into the agent storage tank 141 through the pressing air bag 1412 to cause air turbulence, air flow generated by the pressing air flow drives the rotating shaft 1411 to rotate and continuously stir the contrast agent through the stirring blade 14111 connected with, while also allowing for the amount of contrast media that is drawn through the liquid barrier disk 14322 to be easily controlled into the inner tube 124.

In order to better demonstrate the implementation process of the cardiovascular angiography examination contrast agent injection device, the embodiment now proposes an implementation method of the cardiovascular angiography examination contrast agent injection device, which includes the following steps:

the method comprises the following steps: inputting a contrast agent into the agent storage tank 141 through the agent inlet valve pipe 1421, and simultaneously pressing the pressing air bag 1412 in a reciprocating manner, driving the stirring blade 14111 to rotate by using air input into the agent storage tank 141 by the pressing air bag 1412, and stirring the contrast agent;

step two: after the air bag 1412 is pressed for a period of time, the pull ring 14321 is pulled outwards and synchronously drives the liquid blocking circular plate 14322 to move outwards, and meanwhile, the contrast medium in the medium storage tank 141 flows into the inner tube 124 through the liquid dropping tube 143;

step three: after the contrast agent completely flows into the inner tube 124, the pull ring 14321 can be pushed inwards and one end of the liquid blocking circular plate 14322 is pressed against the inner wall of the lower liquid tube 143, and at the same time, the telescopic rod 1131 is adjusted to a suitable length and the vacuum suction cup 11311 is made to suck the skin around the injection point of the examinee;

step four: the micro hydraulic cylinder 22 and the micro motor 2212 are synchronously started, the piston push rod 221 moves inwards, the piston rotating rod 132 and the extrusion piston column assembly 133 are driven to move towards the injection needle tube 1121, and the contrast medium entering the inner tube 124 is pushed into the injection needle tube 1121 and is injected into the body of the examinee through the injection hole 11221.

In summary, the following steps: the invention provides a contrast medium injection device for cardiovascular angiography examination in cardiovascular department and an implementation method thereof, wherein a plurality of groups of internal thread grooves 111 are arranged on the inner wall of a front tube injection tube 11 along the circumferential direction, a limit spiral ring 112 is fixedly arranged at the center of the outer wall of the front end of the front tube injection tube 11, an injection needle tube 1121 is screwed outside the limit spiral ring 112, an insertion tube 121 is arranged at one end of a working flow tube barrel 12 close to the front tube injection tube 11, an external thread 1211 corresponding to the internal thread grooves 111 is arranged on the outer wall of the insertion tube 121 along the circumferential direction, the insertion tube 121 is screwed with the front tube injection tube 11 through the external thread 1211 and is matched with the internal thread grooves 111, a liquid level scale mark 122 is arranged at the position of the outer wall of the working flow tube barrel 12 close to the edge, an electric heating sleeve 123 is movably arranged outside the working flow tube barrel 12, the front end of a bottom rod 113 is movably connected with a telescopic rod 1131, before injecting contrast agent, the outer wall of the working flow tube 12 can be heated by the electric heating sleeve 123 to indirectly conduct heat to the contrast agent in the inner tube 124, so that the contrast agent is at a suitable temperature for a human body, meanwhile, when injecting the contrast agent into an examinee by using the conical injection needle 1122, the periphery of the skin of the injection point of the examinee can be sucked by the vacuum chuck 11311, the position deviation of the conical injection needle 1122 during injection is avoided, and the injection efficiency and effect are affected, the bottom end of the working flow tube 12 is connected with the fixed bottom tube 13, the limit tube body 131 is fixedly arranged at the center of the bottom surface of the fixed bottom tube 13, the contrast agent input structure 14 is screwed on the outer wall of one side of the working flow tube 12 close to the fixed bottom tube 13, the bottom end of the inner cavity of the agent storage tank 141 is provided with the rotating shaft 1411, the top end of the rotating shaft 1411 is provided with the stirring blade 14111, the bottom end of the pressing air bag 1412 is communicated with the inner cavity of the agent storage tank 141, so that before the contrast agent in the agent storage tank 141 is input into the inner tube 124, the pressing air bag 1412 can be pressed in a reciprocating manner, air is input into the agent storage tank 141 through the pressing air bag 1412 and causes air turbulence, the air flow generated by the pressing air bag drives the rotating shaft 1411 to rotate and continuously stir the contrast agent through the stirring blade 14111 connected to the upper end of the rotating shaft 1411, the contrast agent is prevented from being precipitated and agglomerated into small blocks, meanwhile, the contrast agent is input into the inner tube 124 again, the subsequent injection of the contrast agent is facilitated, the amount of the contrast agent entering the inner tube 124 can be conveniently controlled through the pulling length of the liquid blocking circular plate 14322, the liquid outlet end of the contrast agent input structure 14 is communicated with the inner cavity of the working flow tube 12, the outer wall of the fixed bottom tube 13 is sleeved with the sleeve hydraulic driving mechanism 2, the outer wall of the side, away from the front tube injection tube 11, the output end of the micro hydraulic cylinder 22 is provided with a piston push rod 221, the output end of the micro motor 2212 is provided with a rotary column 22121, the other end of the rotary column 22121 is inserted into the inner cavity of the insertion hole 13211 and connected with the piston rotary rod 132, and a plurality of groups of vibration elastic pieces 13313 are arranged between adjacent rubber column rings 1331 and along the circumferential direction, so that when medical personnel inject contrast agents, the piston push rod 221 can be pulled inwards at a constant speed through the micro hydraulic cylinder 22 to drive the extrusion piston column assembly 133 to inject the contrast agents in the inner tube 124 into a detected body at a constant speed, the phenomenon that the contrast agents are injected at a high pressure and are high in speed due to high pressure is avoided, the contrast agents leak out of blood vessels due to the blood vessel factors of patients, and if the contrast agents are not treated or treated in time, partial swelling, pain and extravasation occur to mild patients, and serious patients cause necrosis of surrounding subcutaneous tissues and even cause dysfunction to pain of the patients, and meanwhile, the piston rotary rod 132 can drive the rotary column The raw material slowly rotates to prevent the contrast agent from standing, precipitating and forming small blocks, a limiting sleeve hole 211 is processed in the inner cavity of the limiting sleeve disk body 21, and the limiting sleeve disk body 21 is sleeved with the fixed bottom barrel 13 through the limiting sleeve hole 211.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.

Claims

1. Cardiovascular internal medicine cardiovascular radiography inspection contrast medium injection apparatus, including contrast medium injection mechanism (1) and set hydraulic drive mechanism (2), its characterized in that have been cup jointed in the bottom outside of contrast medium injection mechanism (1): the contrast agent injection mechanism (1) comprises a front tube injection tube (11), a working flow tube (12), a fixed bottom tube (13) and a contrast agent input structure (14), wherein a plurality of groups of internal thread grooves (111) are formed in the inner wall of the front tube injection tube (11) along the circumferential direction, a limiting spiral ring (112) is fixedly arranged in the center of the outer wall of the front end of the front tube injection tube (11), an injection needle tube (1121) is screwed outside the limiting spiral ring (112), an insertion tube (121) is arranged at one end, close to the front tube injection tube (11), of the working flow tube (12), an external thread (1211) corresponding to the internal thread grooves (111) is arranged on the outer wall of the insertion tube (121) along the circumferential direction, the insertion tube (121) is screwed into the front tube injection tube (11) through the external thread (1211), the external thread (1211) is matched with the internal thread grooves (111), and a liquid level scale mark (122) is arranged at the position, close to the edge, of, the bottom end of the working flow tube barrel (12) is connected with a fixed bottom barrel (13), the center of the bottom surface of the fixed bottom barrel (13) is fixedly provided with a limiting barrel body (131), the outer wall of one side, close to the fixed bottom barrel (13), of the working flow tube barrel (12) is in threaded connection with a contrast agent input structure (14), the liquid outlet end of the contrast agent input structure (14) is communicated with the inner cavity of the working flow tube barrel (12), and the outer wall of the fixed bottom barrel (13) is sleeved with a sleeve disc hydraulic driving mechanism (2);

the sleeve disc hydraulic driving mechanism (2) comprises a limiting sleeve disc body (21) and a micro hydraulic cylinder (22), the micro hydraulic cylinder (22) is fixedly arranged on the outer wall of one side, away from the front pipe injection cylinder (11), of the limiting sleeve disc body (21), a piston push rod (221) is arranged at the output end of the micro hydraulic cylinder (22), a limiting sleeve hole (211) is machined in the inner cavity of the limiting sleeve disc body (21), and the limiting sleeve disc body (21) is sleeved with the fixed bottom cylinder (13) through the limiting sleeve hole (211).

2. The cardiovascular medical angiographic contrast medium injector of claim 1, wherein: the top end of the injection needle tube (1121) is provided with a conical injection needle (1122), the front end of the outer wall of the conical injection needle (1122) is provided with an injection hole (11221), the outer wall of the front end of the front tube injection tube (11) is uniformly provided with four groups of bottom rods (113) along the periphery of the limiting spiral ring (112), the front ends of the bottom rods (113) are movably connected with a telescopic rod (1131), and the top end of the telescopic rod (1131) is fixedly provided with a vacuum suction cup (11311).

3. The cardiovascular medical angiographic contrast medium injector of claim 1, wherein: an electric heating sleeve (123) is movably mounted on the outer side of the working flow tube barrel (12), a starting button (1231) is arranged on the outer wall of the electric heating sleeve (123), an inner tube (124) is arranged in the inner cavity of the working flow tube barrel (12), and the front end of the inner tube (124) is communicated with the inner cavity of the front tube injection barrel (11).

4. The cardiovascular medical angiographic contrast medium injector of claim 1, wherein: the bottom of fixed end section of thick bamboo (13) is provided with piston bull stick (132), the inboard of piston bull stick (132) is passed spacing barrel (131) and is stretched into in the inner chamber of inner tube (124), and be provided with a plurality of groups extrusion piston post subassembly (133) on the inboard outer wall of piston bull stick (132), extrusion piston post subassembly (133) are arranged in the inner chamber of inner tube (124), and the outside top of piston bull stick (132) is connected with fixed section of thick bamboo (1321), jack (13211) have been seted up on the outside surface of fixed section of thick bamboo (1321).

5. The cardiovascular medical angiographic contrast medium injector of claim 4, wherein: the extrusion piston column assembly (133) comprises a plurality of groups of rubber column rings (1331) and arc-shaped locking pieces (1332), column ring through holes (13311) are formed in the surfaces of the rubber column rings (1331), the rubber column rings (1331) are connected through a positioning cylinder (13312), and a plurality of groups of vibration elastic pieces (13313) are arranged between the adjacent rubber column rings (1331) and along the circumferential direction.

6. The cardiovascular medical angiographic contrast medium injector of claim 1, wherein: the contrast agent input structure (14) comprises an agent storage tank (141), an outer sleeve ring (142) and a liquid outlet pipe (143), the outer sleeve ring (142) is installed on the outer side of the agent storage tank (141), an agent inlet valve pipe (1421) is arranged on the outer wall of the outer sleeve ring (142), the liquid outlet pipe (143) is arranged at the bottom end of the agent storage tank (141), the bottom end of the liquid outlet pipe (143) is connected with the working flow pipe barrel (12) in a threaded mode through a screwed pipe (1431), and the bottom end of the liquid outlet pipe (143) is communicated with the inner cavity of the inner pipe (124).

7. The cardiovascular medical angiographic contrast medium injector of claim 6, wherein: the bottom end of the inner cavity of the agent storage tank (141) is provided with a rotating shaft (1411), the top end of the rotating shaft (1411) is provided with a stirring blade (14111), the top end of the agent storage tank (141) is provided with a pressing air bag (1412), the bottom end of the pressing air bag (1412) is communicated with the inner cavity of the agent storage tank (141), the outer side of the liquid discharging pipe (143) is provided with a push-pull rod (1432), the outer side of the push-pull rod (1432) is fixedly provided with a pull ring (14321), the inner side of the push-pull rod (1432) extends into the inner cavity of the liquid discharging pipe (143), and the top end of the.

8. The cardiovascular medical angiographic contrast medium injector of claim 1, wherein: a positioning rod (2211) is installed on one side of the outer wall of the piston push rod (221), a micro motor (2212) is fixedly arranged on one side, close to the fixed cylinder (1321), of the positioning rod (2211), a rotating column (22121) is arranged at the output end of the micro motor (2212), and the other end of the rotating column (22121) is inserted into the inner cavity of the insertion hole (13211) and connected with the piston rotating rod (132).

9. A method of implementing a contrast medium injection device for cardiovascular angiography of any one of claims 1 to 8, comprising the steps of:

s1: inputting a contrast agent into the agent storage tank (141) through the agent inlet valve pipe (1421), pressing the pressing air bag (1412) in a reciprocating manner, and driving the stirring blade (14111) to rotate by utilizing air input into the agent storage tank (141) by the pressing air bag (1412) and stirring the contrast agent;

s2: after the air bag (1412) is pressed for a period of time, the pull ring (14321) is pulled outwards and synchronously drives the liquid blocking circular plate (14322) to move outwards, and meanwhile, the contrast medium in the medium storage tank (141) flows into the inner tube (124) through the liquid descending tube (143);

s3: after the contrast agent completely flows into the inner tube (124), the pull ring (14321) can be pushed inwards, one end of the liquid blocking circular plate (14322) is pressed against the inner wall of the liquid dropping tube (143), and meanwhile, the telescopic rod (1131) is adjusted to be proper in length and the vacuum suction cup (11311) is sucked around the skin of the injection point of the examinee;

s4: the micro hydraulic cylinder (22) and the micro motor (2212) are synchronously started, the piston push rod (221) is used for moving inwards, the piston rotating rod (132) and the extrusion piston column assembly (133) are driven to move towards the injection needle tube (1121), and the contrast medium entering the inner tube (124) is pushed into the injection needle tube (1121) and injected into the body of the examinee through the injection hole (11221).