Automatic acoustic radiography injection device

Abstract

The invention discloses an automatic acoustic radiography injection device which is provided with a first cylinder, a second cylinder, a stirring device, a first hose, a second hose, an injection tube and a pushing injection mechanism, the stirring device comprises a stirring shaft and a first power source, the first power source is fixed right above the first cylinder, one end of the stirring shaft is in driving connection with the first power source, and the other end of the stirring shaft is in driving connection with the second hose. The other end extends into the first barrel body part and is provided with a spiral petal; the stirring shaft is driven by the first power source to rotate, radiography liquid raw materials can be fully fused and oscillated in the first barrel to form radiography microbubbles, the foaming efficiency is high, and the microbubbles are fine and smooth; the first end of the first hose is communicated with the first barrel; the first end of the second hose is communicated with the second barrel; the injection tube is connected with one end of a three-way tube, and the other two ends of the three-way tube are respectively connected with a first hose and a second hose; the injection mechanism can selectively inject the first hose towards the injection tube and block the second hose at the same time, or inject the second hose towards the injection tube and block the first hose at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to an automated acoustic contrast injection device. Background Art

[0002] At present, acoustic contrast imaging is divided into left heart acoustic contrast imaging and right heart acoustic contrast imaging according to whether the contrast agent microbubbles can pass through the pulmonary capillary network. Right heart acoustic contrast imaging is to use two syringes connected by a three-way to move back and forth, and mix physiological saline and air through oscillation to produce microbubbles (16μm-38μm) that cannot pass through the pulmonary capillary network, and then push them into the venous system in a bolus manner. At the same time, echocardiography is used to observe the image changes in the heart cavity; while left heart acoustic contrast imaging requires 5ml of physiological saline to dissolve the contrast agent powder, and constantly oscillate to produce microbubbles (2.5μm) evenly. Different push injection methods are selected according to the condition, and the loading dose and / or dilution are pumped at a constant speed, and physiological saline is used to continuously flush the tube to promote the contrast agent in the tube to enter the body.

[0003] The existing technology has the following problems: the oscillation synthesis and bolus injection of contrast solution are manually operated. Due to the different proficiency of different operators and the easy fatigue of the reciprocating push-injection syringe, the oscillation effect is directly affected, thereby affecting the contrast examination effect. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In order to solve the above problems, the present invention provides an automated acoustic contrast injection device, which can efficiently and automatically obtain high-quality contrast agent microbubbles.

[0006] (II) Technical solution

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] An automated acoustic contrast injection device, comprising:

[0009] A first cylinder;

[0010] A stirring device, comprising a stirring shaft and a first power source, wherein the first power source is fixed directly above the first cylinder, one end of the stirring shaft is drivingly connected to the first power source, and the other end extends into the first cylinder and is provided with a spiral petal;

[0011] a second cylinder, wherein the second cylinder is pre-filled with physiological saline;

[0012] a first hose, wherein a first end of the first hose is connected to the first cylinder;

[0013] a second hose, wherein a first end of the second hose is connected to the second cylinder;

[0014] An injection tube, the injection tube is connected to one end of a three-way tube, and the other two ends of the three-way tube are respectively connected to the second ends of the first hose and the second hose;

[0015] The push injection device can selectively push the first hose toward the injection tube and block the second hose at the same time, or push the second hose toward the injection tube and block the first hose at the same time.

[0016] Preferably, the stirring device further comprises:

[0017] A lifting cylinder, the lifting cylinder is coaxially arranged in the first cylinder, the upper end of the lifting cylinder is opened, and the lower end is provided with a through hole with a diameter larger than the maximum outer diameter of the spiral petal, and the upper end surface of the cylinder wall of the lifting cylinder is defined as a height surface, and the height surface has multiple height dimensions in the vertical direction;

[0018] A compression spring, the compression spring is vertically arranged in the first cylinder, the lower end of the compression spring abuts against the bottom of the first cylinder, and the upper end of the compression spring abuts against the lifting cylinder;

[0019] A rotating flange, which is disposed in the first cylinder and fixedly connected to the stirring shaft, and is located higher than the lifting cylinder;

[0020] A driving rod is vertically fixed, with its lower end abutting against the height surface and its upper end fixedly connected to the flange.

[0021] Preferably, the lower end of the driving rod is a spherical structure.

[0022] Preferably, it further comprises a base, on which a first seat body for fixing the first cylinder and a second seat body for fixing the second cylinder are provided.

[0023] Preferably, the first seat body is provided with a horizontally arranged first slot, the bottom edge of the first cylinder body is provided with a first latching protrusion arranged with the first slot, the first slot is provided with an external opening, and the first cylinder body is latched into the first slot from the opening of the first slot through the first latching protrusion.

[0024] Preferably, the stirring device also includes a first motor seat, which is an inverted U-shaped structure with its bottom fixed on the first seat body. The first power source is a motor, which is fixed on the motor seat. A first adapter block is fixed on its motor shaft. A second slot with openings at both ends is provided at the bottom of the first adapter block. The two side surfaces of the upper end of the stirring shaft are planar structures, and the distance between the two side surfaces is equal to the slot width of the second slot. When the first cylinder is inserted into the first slot, the upper end of the stirring shaft is inserted into the second slot.

[0025] Preferably, it further comprises a base, on which a first base body for fixing the first cylinder and a second base body for fixing the second cylinder are provided, and a third base body is provided on the base, on which a left fixing protrusion and a right fixing protrusion are provided which are symmetrical with each other;

[0026] The push injection mechanism also includes:

[0027] A chuck, the chuck is driven by a second power source and can be translated left and right on the third seat body, the chuck comprises a left boss and a right boss which are symmetrically arranged left and right, the front ends of the left boss and the right boss are respectively provided with a left movable clamping protrusion and a right movable clamping protrusion which are symmetrical left and right, and the left movable clamping protrusion and the right movable clamping protrusion are arranged between the left fixed clamping protrusion and the right fixed clamping protrusion;

[0028] A rotor, driven by a third power source and rotatably disposed on the third seat body, wherein the rotor is disposed between the left protrusion and the right protrusion;

[0029] The first hose passes through between the left movable clamping protrusion and the left fixed clamping protrusion and between the left protrusion and the rotor in sequence, and then is connected with the three-way pipe;

[0030] The second hose passes through between the right movable clamping protrusion and the right fixed clamping protrusion and between the right protrusion and the rotor in sequence, and then is connected with the three-way pipe;

[0031] When the chuck moves to the left, the left movable clamping protrusion approaches the left fixed clamping protrusion to compress the first hose, the right movable clamping protrusion moves away from the right fixed clamping protrusion to loosen the second hose, and the rotor and the right boss squeeze the second hose; when the chuck moves to the right, the left movable clamping protrusion moves away from the left fixed clamping protrusion to loosen the first hose, the rotor and the left boss squeeze the first hose, and the right movable clamping protrusion approaches the right fixed clamping protrusion to compress the second hose;

[0032] The rotor rotates on its own and can selectively and intermittently squeeze the first hose or the second hose toward the injection tube.

[0033] Preferably, the left protrusion and the right protrusion are in the shape of a symmetrical outwardly protruding arc, the rotor comprises a rotating shaft and a plurality of truncated tables in a circumferential array and fixed to the rotating shaft, and the chuck moves and can cooperate with the truncated tables to selectively extrude the first hose and the second hose.

[0034] Preferably, the second power source is a motor, and the second power source drives the chuck to translate left and right through a gear rack mechanism.

[0035] Preferably, the injection tube is also provided with a drug adding port.

[0036] (III) Beneficial effects

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] The first cylinder, the second cylinder, the stirring device, the first hose, the second hose, the injection tube and the injection mechanism are provided, wherein the first cylinder is used to contain the contrast liquid raw material, the contrast liquid raw material can be physiological saline for right heart angiography, or physiological saline and contrast powder for left heart angiography; the stirring device includes a stirring shaft and a first power source, the first power source is fixed just above the first cylinder, one end of the stirring shaft is connected to the first power source for driving, and the other end extends into the first cylinder and is provided with a spiral petal; the stirring shaft is driven to rotate by the first power source, the contrast liquid raw material can be fully fused and vibrated in the first cylinder to form contrast microbubbles, the foaming efficiency is high, the microbubbles are fine, and the quality is high High; the first end of the first hose is connected to the first cylinder; the first end of the second hose is connected to the second cylinder; the injection tube is connected to one end of a three-way tube, and the other two ends of the three-way tube are respectively connected to the second ends of the first hose and the second hose; the push mechanism can selectively push the first hose in the direction of the injection tube and block the second hose at the same time, or push the second hose in the direction of the injection tube and block the first hose at the same time. Through the above arrangement, the contrast material can be automatically shaken to form contrast microbubbles and injected into the patient's body, saving manpower, improving the quality and standardization of microbubbles, and improving the accuracy of contrast detection. In addition, the technical solution can be used for both left heart angiography and right heart angiography, and has strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0040] Figure 1 The overall structural diagram of an embodiment of the present invention is shown;

[0041] Figure 2 Shows Figure 1 A top view of

[0042] Figure 3 Shows Figure 2 Cross-sectional view of the middle BB;

[0043] Figure 4 It shows a schematic structural diagram of a lifting cylinder in an embodiment of the present invention;

[0044] Figure 5 A schematic structural diagram of the first adapter block connected to the stirring shaft in an embodiment of the present invention is shown;

[0045] Figure 6 Shows Figure 1 Enlarged view of part A in the middle.

[0046] In the figure: the first cylinder 1, the first cam 10, the second cylinder 2, the stirring device 3, the stirring shaft 30, the first power source 31, the lifting cylinder 32, the height surface 320, the compression spring 33, the rotating flange 34, the driving rod 35, the first motor seat 36, the first adapter block 37, the second slot 370, the first hose 4, the second hose 5, the injection tube 6, the three-way pipe 60, the heparin cap 61, the injection mechanism 7, the chuck 70, the left boss 700, the right boss 701, the left movable cam 702, the right movable cam 703, the second power source 71, the rotor 72, the rotating shaft 720, the round table 721, the third power source 73, the gear 74, the rack 75, the first adapter block 76, the guide groove 77, the base 8, the first seat 80, the first slot 801, the second seat 81, the third seat 82, the left fixed cam 820, the right fixed cam 821. DETAILED DESCRIPTION

[0047] 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.

[0048] See attached Figure 1 -Attached Figure 6 The present invention provides an automated acoustic contrast injection device, comprising a first barrel 1, a second barrel 2, a stirring device 3, a first hose 4, a second hose 5, an injection tube 6 and an injection mechanism 7, wherein the first barrel 1 is used to contain a contrast solution material, and the contrast solution material can be saline for right heart contrast, or saline and contrast powder for left heart contrast; the stirring device 3 comprises a stirring shaft 30 and a first power source 31, the first power source 31 is fixed directly above the first barrel 1, one end of the stirring shaft 30 is connected to the first power source 31 for driving, and the other end extends into the first barrel 1 and is provided with a spiral petal; the stirring shaft 30 is driven by the first power source 31 to rotate Rotation can fully fuse and oscillate the contrast liquid raw materials in the first cylinder 1 to form contrast microbubbles, with high bubbling efficiency, fine microbubbles and high quality. In this embodiment, the first power source 31 is a motor; the second cylinder 2 is pre-filled with physiological saline; the first end of the first hose 4 is connected to the first cylinder 1; the first end of the second hose 5 is connected to the second cylinder 2; the injection tube 6 is connected to one end of a three-way tube 60, and the other two ends of the three-way tube 60 are respectively connected to the second ends of the first hose 4 and the second hose 5; the push mechanism 7 can selectively push the first hose 4 in the direction of the injection tube 6 and block the second hose 5 at the same time, or push the second hose 5 in the direction of the injection tube 6 and block the first hose 4 at the same time.

[0049] The automated acoustic contrast injection device of the present invention can perform left heart contrast imaging and right heart contrast imaging;

[0050] When used for left heart angiography, physiological saline and contrast powder are added to the first cylinder 1, and then the first power source 31 is started. The first power source 31 drives the stirring shaft 30 to rotate at a preset time and speed, and the physiological saline and contrast powder are fully fused and oscillated in the first cylinder 1 to form contrast microbubbles, and then the driving is stopped. Then the push mechanism 7 blocks the second hose 5 and pushes the first hose 4 in the direction of the injection tube 6, so that the contrast liquid is pushed into the injection tube 6 and injected into the human body. After the preset amount is injected, the push mechanism 7 blocks the first hose 4 and pushes the second hose 5 in the direction of the injection tube 6, so that the physiological saline is pushed into the injection tube 6 and injected into the human body to flush the tube. Since the first hose 4 may contain insufficiently stirred contrast liquid in the initial state, the second hose 5 and the injection tube 6 can be allowed to drain for a certain period of time before the injection tube 6 is connected to the human body.

[0051] When used for right heart angiography, physiological saline is added to the first cylinder 1, and then the first power source 31 is started. The first power source 31 drives the stirring shaft 30 to rotate at a preset time and speed, and stops driving after the physiological saline is fully integrated and shaken in the first cylinder 1 to form contrast microbubbles. Then the push mechanism 7 blocks the second hose 5 and pushes the first hose 4 in the direction of the injection tube 6, so that the contrast fluid is pushed into the injection tube 6 and injected into the human body. After the preset amount is injected, the push mechanism 7 blocks the first hose 4 and pushes the second hose 5 in the direction of the injection tube 6, so that the physiological saline is pushed into the injection tube 6 and injected into the human body to flush the tube. Since the first hose 4 may contain insufficiently stirred contrast fluid in the initial state, the second hose 5 and the injection tube 6 can be allowed to drain for a certain period of time before the injection tube 6 is connected to the human body.

[0052] Specifically, the imaging device of the present invention can be used by a single person or by multiple people. When used by multiple people, imaging materials for multiple people can be added to the first cylinder 1 and stirred at one time for use by multiple people. For hygiene purposes, a medical check valve can be installed between the injection tube 6 and the three-way pipe 60, and then the injection tube 6 and the medical check valve can be replaced once for each person.

[0053] Through the above arrangement, the present invention can realize automatic shaking of contrast material to form contrast microbubbles, and inject them into the patient's body, saving manpower, improving microbubble quality and standardization, and improving the accuracy of contrast detection. In addition, the present invention can be used for both left heart contrast imaging and right heart contrast imaging, and has strong applicability. In addition, the present invention can be shaken once and used by multiple people, thereby improving detection efficiency.

[0054] Furthermore, the stirring device 3 also includes a lifting cylinder 32, a compression spring 33, a rotating flange 34 and a driving rod 35. The lifting cylinder 32 is coaxially arranged in the first cylinder 1. The upper end of the lifting cylinder 32 is opened, and the lower end is provided with a through hole with a diameter larger than the maximum outer diameter of the spiral petal to avoid interference with the spiral petal. The upper end surface of the cylinder wall of the lifting cylinder 32 is defined as a height surface 320, and the height surface 320 has multiple height dimensions in the vertical direction; the compression spring 33 is vertically arranged in the first cylinder 1, the lower end abuts the bottom of the first cylinder 1, and the upper end abuts the lifting cylinder 32; the rotating flange 34 is arranged in the first cylinder 1 and fixedly connected to the stirring shaft 30, and its position is higher than the lifting cylinder 32; the driving rod 35 is vertically fixed, the lower end of which abuts the height surface 320, and the upper end is fixedly connected to the rotating flange 34. Specifically, the driving shaft is fixed to a position of the rotating flange 34 away from the axis.

[0055] When the stirring shaft 30 rotates, the rotating flange 34 can drive the driving rod 35 to perform orbital motion with the rotating shaft 720 as the axis. Since the height surface 320 has multiple height dimensions in the vertical direction, the driving rod 35, the lifting cylinder 32 and the compression spring 33 form a cam mechanism. During the revolution of the driving rod 35, the driving rod 35 can apply downward pressure of different strokes to the lifting cylinder 32, and the compression spring 33 applies an upward elastic force to the lifting cylinder 32, thereby enabling the driving rod 35 to drive the lifting cylinder 32 to move up and down during the revolution.

[0056] Through the above arrangement, the first power source 31 drives the stirring shaft 30 to rotate while also driving the lifting cylinder 32 to move up and down. The stirring shaft 30 is provided with a spiral petal, which can make the contrast material inside the first cylinder 1 have a tendency to form a vortex, and the up and down movement of the lifting cylinder 32 can cut the vortex surface, thereby breaking the vortex tendency, making the contrast material inside the first cylinder 1 have complex and irregular oscillations, increasing the randomness of the oscillation, so as to obtain more sufficient and delicate contrast microbubbles, and effectively improving the quality of the contrast microbubbles. In addition, the stirring device 3 is linked by a cam mechanism to realize one power source driving two-dimensional actions (rotation of the stirring shaft 30 and lifting of the lifting cylinder 32), which is convenient for control, saves energy, and simplifies the overall structure.

[0057] In addition, the compression spring 33 has multiple coils, which can increase the contact and collision with the liquid, further enhance the randomness of the oscillation, and thus improve the efficiency of microbubble generation.

[0058] Specifically, the outer diameter of the lifting cylinder 32 is slightly smaller than the inner diameter of the first cylinder 1, so that the lifting cylinder 32 can be stably lifted and lowered in the first cylinder 1 without shaking left and right. More preferably, a slide rail (not shown in the figure) can be provided on the side wall of the lifting cylinder 32, and a corresponding slide groove (not shown in the figure) can be provided on the inner wall of the first cylinder 1, so as to prevent the lifting cylinder 32 from being driven by the driving rod 35 and rotating, thereby affecting the lifting effect. More preferably, a plurality of sieve holes should be provided at the bottom of the lifting cylinder 32, which can accelerate the generation of microbubbles on the one hand, and on the other hand, can also allow the imaging material to pass through the lifting cylinder 32 quickly, thereby preventing the imaging material in the first cylinder 1 from being taken out of the first cylinder 1.

[0059] In order to reduce the friction between the driving rod 35 and the height surface 320, the lower end of the driving rod 35 is a spherical structure. Of course, the lower end of the driving rod 35 can also be set as a roller or a ball, which will not be repeated here.

[0060] Further, for product integration, the automated radiographic examination device further includes a base 8, on which a first base 80 for fixing the first barrel 1 and a second base 81 for fixing the second barrel 2 are further provided. Specifically, in order to facilitate the disassembly and disinfection of the first barrel 1, the first base 80 is provided with a horizontally arranged first slot 801, and the bottom edge of the first barrel 1 is provided with a first cam 10 arranged with the first slot 801, and the first slot 801 is provided with an external opening, and the first barrel 1 is inserted into the first slot 801 from the opening of the first slot 801 through the first cam 10, so that it can be stably fixed and conveniently disassembled. Since only physiological saline needs to be pre-installed in the second barrel 2, for ease of use, in this embodiment, the second barrel 2 uses a physiological saline hanging bottle available on the market, and the second base 81 is provided with two bayonet ports that match the body, and the second barrel 2 is clamped on the two bayonet ports, wherein the rear bayonet port is higher than the front bayonet port, so that the second barrel 2 can be tilted downward to facilitate the outflow of liquid.

[0061] Specifically, to facilitate the disassembly and assembly of the stirring shaft 30 and the first power source 31, the stirring device 3 also includes a first motor seat 36. The first motor seat 36 is an inverted U-shaped structure, and the bottom is fixed on the first seat body 80. The first power source 31 is a motor. The first power source 31 is fixed on the motor seat, and a first adapter block 37 is fixed on its motor shaft. A second slot 370 with openings at both ends is set at the bottom of the first adapter block 37. The two side surfaces of the upper end of the stirring shaft 30 are planar structures, and the distance between the two side surfaces is equal to the slot width of the second slot 370. When the first cylinder 1 is inserted into the first slot 801, the upper end of the stirring shaft 30 is inserted into the second slot 370.

[0062] In this embodiment, the base 8 is further provided with a third base body 82, and the third base body 82 has a left fixed protrusion 820 and a right fixed protrusion 821 which are symmetrical with each other;

[0063] The injection mechanism 7 also includes:

[0064] The chuck 70 is driven by the second power source 71 and can be translated left and right on the third base body 82. The chuck 70 includes a left boss 700 and a right boss 701 that are symmetrically arranged left and right. The front ends of the left boss 700 and the right boss 701 are respectively provided with a left movable clamping protrusion 702 and a right movable clamping protrusion 703 that are symmetrical left and right. The left movable clamping protrusion 702 and the right movable clamping protrusion 703 are arranged between the left fixed clamping protrusion 820 and the right fixed clamping protrusion 821.

[0065] The rotor 72 is driven by the third power source 73 and is rotatably disposed on the third seat body 82. The rotor 72 is disposed between the left boss 700 and the right protrusion 701;

[0066] The first hose 4 passes through the left movable clamping protrusion 702 and the left fixed clamping protrusion 820 and between the left boss 700 and the rotor 72 in sequence, and then is connected to the three-way pipe 60;

[0067] The second hose 5 passes through between the right movable clamping protrusion 703 and the right fixed clamping protrusion 821 and between the right protrusion 701 and the rotor 72 in sequence, and then is connected to the three-way pipe 60;

[0068] When the chuck 70 moves to the left, the left movable clamping protrusion 702 approaches the left fixed clamping protrusion 820 to compress the first hose 4, the right movable clamping protrusion 703 moves away from the right fixed clamping protrusion 821 to loosen the second hose 5, and the rotor 72 and the right boss 701 squeeze the second hose 5; when the chuck 70 moves to the right, the left movable clamping protrusion 702 moves away from the left fixed clamping protrusion 820 to loosen the first hose 4, the rotor 72 and the left boss 701 squeeze the first hose 4, and the right movable clamping protrusion 703 approaches the right fixed clamping protrusion 821 to compress the second hose 5;

[0069] The rotor 72 rotates and can selectively and intermittently squeeze the first hose 4 or the second hose 5 toward the injection tube 6.

[0070] Applied to the above-mentioned push injection mechanism 7, the initial state of this embodiment is that the chuck 70 moves to the right, the left active clamping protrusion 702 moves away from the left fixed clamping protrusion 820 to loosen the first hose 4, the rotor 72 and the left boss 700 squeeze the first hose 4, so that the first hose 4 is squeezed by the rotor 72 and temporarily blocked, the right active clamping protrusion 703 approaches the right fixed clamping protrusion 821 to press the second hose 5, and the second hose 5 is also blocked, so that the liquid in the first barrel 1 and the second barrel 2 cannot flow outward, when the microbubbles in the first barrel 1 are fully stirred, the third power source 73 drives the rotor 72 to rotate counterclockwise, and the microbubble liquid in the first hose 4 is intermittently squeezed toward the injection tube 6 to achieve the projectile. When the push injection is sufficient, the third power source 73 stops running and temporarily blocks the first hose 4. Then the second power source 71 drives the chuck 70 to move to the left, and the left movable clamping protrusion 702 approaches the left fixed clamping protrusion 820 to compress the first hose 4, thereby blocking the first hose 4. The right movable clamping protrusion 703 moves away from the right fixed clamping protrusion 821 to loosen the second hose 5. The rotor 72 and the right boss 701 squeeze the second hose 5. Then the third power source 73 drives the rotor 72 to rotate clockwise, thereby intermittently squeezing the liquid in the second hose 5 toward the injection tube 6 to achieve a projectile-type push injection. When the push injection is sufficient, the third power source 73 stops running and temporarily blocks the second hose 5.

[0071] In summary, by moving the chuck 70 left or right and cooperating with the rotation of the rotor 72, the first hose 4 can be pushed toward the injection tube 6 while blocking the second hose 5, or the second hose 5 can be pushed toward the injection tube 6 while blocking the first hose 4.

[0072] In this embodiment, the rotor 72 is directly driven by the third power source 73, which is a motor fixed inside the third seat body 82, and the motor shaft extends out of the third seat body 82 and is connected to the rotor 72. The second power source 71 is a motor, and the second power source 71 drives the chuck 70 to move left and right through a gear rack mechanism. Specifically, the second power source 71 is fixedly connected to the base 8, a gear 74 is fixed on the motor shaft, and a rack 75 is also slidably connected to the base 8, and the rack 75 meshes with the gear 74. A guide groove 77 is provided in the middle of the chuck 70, and the motor shaft of the third power source 73 passes through the guide groove 77. The chuck 70 and the rack 75 are fixedly connected through the second adapter block 76, so that the second power source 71 is in operation and can drive the chuck 70 to move left and right through the gear rack.

[0073] Of course, in addition to the above scheme, the push mechanism 7 can also be set to two peristaltic pumps, and the first hose 4 and the second hose 5 are driven by two peristaltic pumps respectively. This embodiment adopts the above scheme. In addition to being able to realize selective blocking and selective pushing in terms of control, it can also only be selectively blocked and selectively pushed in terms of machinery, which can prevent the problem of the first hose 4 and the second hose 5 being pushed at the same time.

[0074] Specifically, the left boss 700 and the right protrusion 701 are symmetrical and outwardly convex arc shapes. The rotor 72 includes a rotating shaft 720 and a plurality of truncated cones 721 arranged in a circumferential array and fixed to the rotating shaft 720. The chuck 70 moves and can cooperate with the truncated cones 721 to selectively extrude the first hose 4 and the second hose 5. When the rotating shaft 720 of the rotor 72 rotates, the plurality of truncated cones 721 can intermittently extrude the first hose 4 or the second hose 5 one by one, thereby realizing a projectile-like push injection.

[0075] In order to facilitate temporary drug addition during the push injection process, the injection tube 6 is also provided with a drug addition port, which is blocked by a heparin cap 61. When drug addition is required, a syringe is inserted into the heparin cap 61 to push the drug.

[0076] Specifically, the present invention should also be provided with a control device for controlling the operation of the first power source 31, the second power source 71 and the third power source 73, and a start button. In this embodiment, the operation of the first power source 31, the second power source 71 and the third power source 73 are all controlled by motors, and the control device drives the motors to operate to realize the functions of the present invention. The control device can be a PLC control module behind a PCB control board.

[0077] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0078] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0079] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automated acoustic contrast injection device, characterized in that: include: A first cylinder; A stirring device, comprising a stirring shaft and a first power source, wherein the first power source is fixed directly above the first cylinder, one end of the stirring shaft is drivingly connected to the first power source, and the other end extends into the first cylinder and is provided with a spiral petal; a second cylinder, wherein the second cylinder is pre-filled with physiological saline; a first hose, wherein a first end of the first hose is connected to the first cylinder; a second hose, wherein a first end of the second hose is connected to the second cylinder; An injection tube, the injection tube is connected to one end of a three-way tube, and the other two ends of the three-way tube are respectively connected to the second ends of the first hose and the second hose; The push injection device can selectively push the first hose toward the injection tube and block the second hose at the same time, or push the second hose toward the injection tube and block the first hose at the same time.

2. The automated acoustic contrast injection device according to claim 1, characterized in that: The stirring device also includes: A lifting cylinder, the lifting cylinder is coaxially arranged in the first cylinder, the upper end of the lifting cylinder is opened, and the lower end is provided with a through hole with a diameter larger than the maximum outer diameter of the spiral petal, and the upper end surface of the cylinder wall of the lifting cylinder is defined as a height surface, and the height surface has multiple height dimensions in the vertical direction; A compression spring, the compression spring is vertically arranged in the first cylinder, the lower end of the compression spring abuts against the bottom of the first cylinder, and the upper end of the compression spring abuts against the lifting cylinder; A rotating flange, which is disposed in the first cylinder and fixedly connected to the stirring shaft, and is located higher than the lifting cylinder; A driving rod is vertically fixed, with its lower end abutting against the height surface and its upper end fixedly connected to the flange.

3. An automated acoustic contrast injection device according to claim 2, characterized in that: The lower end of the driving rod is a spherical structure.

4. The automated acoustic contrast injection device according to claim 1, characterized in that: It also includes a base, on which a first seat body for fixing the first cylinder and a second seat body for fixing the second cylinder are provided.

5. The automated acoustic contrast injection device according to claim 4, characterized in that: The first seat body is provided with a horizontally arranged first card slot, the bottom edge of the first cylinder body is provided with a first card protrusion arranged with the first card slot, the first card slot is provided with an external opening, and the first cylinder body is inserted into the first card slot from the opening of the first card slot through the first card protrusion.

6. The automated acoustic contrast injection device according to claim 5, characterized in that: The stirring device also includes a first motor seat, which is an inverted U-shaped structure with its bottom fixed on the first seat body. The first power source is a motor, which is fixed on the motor seat. A first adapter block is fixed on its motor shaft. A second slot with openings at both ends is provided at the bottom of the first adapter block. The two side surfaces of the upper end of the stirring shaft are planar structures, and the distance between the two side surfaces is equal to the slot width of the second slot. When the first cylinder is inserted into the first slot, the upper end of the stirring shaft is inserted into the second slot.

7. The automated acoustic contrast injection device according to claim 1, characterized in that: It also includes a base, on which a first base body for fixing the first cylinder and a second base body for fixing the second cylinder are provided, and a third base body is provided on the base, on which a left fixing protrusion and a right fixing protrusion are provided which are symmetrical with each other; The push injection mechanism also includes: A chuck, the chuck is driven by a second power source and can be translated left and right on the third seat body, the chuck comprises a left boss and a right boss which are symmetrically arranged left and right, the front ends of the left boss and the right boss are respectively provided with a left movable clamping protrusion and a right movable clamping protrusion which are symmetrical left and right, and the left movable clamping protrusion and the right movable clamping protrusion are arranged between the left fixed clamping protrusion and the right fixed clamping protrusion; A rotor, driven by a third power source and rotatably disposed on the third seat body, wherein the rotor is disposed between the left protrusion and the right protrusion; The first hose passes through between the left movable clamping protrusion and the left fixed clamping protrusion and between the left protrusion and the rotor in sequence, and then is connected with the three-way pipe; The second hose passes through between the right movable clamping protrusion and the right fixed clamping protrusion and between the right protrusion and the rotor in sequence, and then is connected with the three-way pipe; When the chuck moves to the left, the left movable clamping protrusion approaches the left fixed clamping protrusion to compress the first hose, the right movable clamping protrusion moves away from the right fixed clamping protrusion to loosen the second hose, and the rotor and the right boss squeeze the second hose; when the chuck moves to the right, the left movable clamping protrusion moves away from the left fixed clamping protrusion to loosen the first hose, the rotor and the left boss squeeze the first hose, and the right movable clamping protrusion approaches the right fixed clamping protrusion to compress the second hose; The rotor rotates on its own and can selectively and intermittently squeeze the first hose or the second hose toward the injection tube.

8. The automated acoustic contrast injection device according to claim 7, characterized in that: The left protrusion and the right protrusion are in the shape of a symmetrical outwardly convex arc. The rotor includes a rotating shaft and a plurality of truncated tables in a circumferential array and fixed to the rotating shaft. The chuck moves and can cooperate with the truncated tables to selectively extrude the first hose and the second hose.

9. The automated acoustic contrast injection device according to claim 7, characterized in that: The second power source is a motor, and the second power source drives the chuck to move left and right through a gear rack mechanism.

10. An automated acoustic contrast injection device according to claim 1, characterized in that: The injection tube is also provided with a medicine adding port.

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