CT contrast high pressure injector

Abstract

The utility model discloses a CT contrast high pressure injector belongs to medical instrument technical field, including the shell, the inside fixed connection of shell has inside support frame and two connecting seats, and two connecting seats all are fixedly connected in the top of inside support frame, and the top of shell detachable connection has two injection needle cylinder, and the bottom of two injection needle cylinder is penetrated to two connecting seats respectively, and two threaded rods are rotatably connected in inside support frame, and the bottom of two threaded rods all is penetrated to the downside of shell, and the circumference surface of two threaded rods all is screw thread connection has the threaded pipe, in the utility model, drive assembly sets up in the inside of inside support frame, makes two drive motors of bigger volume and two threaded rods horizontal placement, and the structure is more compact, shortens the length of syringe whole, and control assembly sets up at the gap between the inner wall of shell and inside support frame surface, rationally utilizes the installation space, and further reduces the volume of syringe whole, and the staff uses conveniently, saves the cost.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to a CT angiography high-pressure injector. Background Technology

[0002] The CT contrast high-pressure injector is an auxiliary diagnostic and treatment device commonly used in CT examinations. It is mainly used in contrast examinations in medical imaging. By injecting contrast agent into the patient's body, lesions can be observed and diagnosed more clearly.

[0003] Currently, CT contrast high-pressure injectors are usually equipped with two syringes, one for injecting contrast agent and the other for injecting saline. However, most existing CT contrast high-pressure injectors require two drive motors to inject different liquids using two syringes. Both drive motors are located inside the CT contrast high-pressure injector and are controlled by a circuit board, making the entire CT contrast high-pressure injector large in size and complex in structure. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a CT angiography high-pressure injector, which aims to solve the problem that most existing CT angiography high-pressure injectors use two syringes to push different liquids, requiring two drive motors, both of which are placed inside the CT angiography high-pressure injector and controlled by a circuit board, resulting in a large size and complex structure of the entire CT angiography high-pressure injector.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution:

[0008] A CT contrast-enhancing high-pressure injector includes a housing. An inner support frame and two connecting seats are fixedly connected inside the housing, with each connecting seat fixedly connected to the top of the inner support frame. Two injection syringes are detachably connected to the top of the housing, with the bottom ends of the two injection syringes penetrating into the two connecting seats respectively. Two threaded rods are rotatably connected inside the inner support frame, with the bottom ends of both threaded rods penetrating to the lower side of the housing. Threaded tubes are threadedly connected to the circumferential surfaces of both threaded rods, and both threaded tubes are slidably connected within the inner support frame. Connectors are fixedly connected to the top ends of both threaded tubes, and the two connectors are located within the two connecting seats, corresponding to the two injection syringes. A drive assembly is provided on the inner support frame to control the rotation of the two threaded rods. Rotating blocks are threadedly connected to the bottom ends of both threaded rods, and both rotating blocks are located on the lower side of the housing. A control assembly is provided inside the housing to control the operation of the drive assembly.

[0009] As a preferred embodiment of this utility model, the drive assembly includes two drive motors, two drive pulleys, two driven pulleys, and two belts. The two drive motors are fixedly connected to the inner side of the inner support frame. The two drive pulleys are respectively fixedly connected to the output ends of the two drive motors. The two driven pulleys are respectively fixedly connected to the circumferential surfaces of the two threaded rods. The two belts are respectively driven between the two drive pulleys and the two driven pulleys.

[0010] As a preferred embodiment of this utility model, the control component includes a button main control board and two motor control boards. The button main control board is fixedly connected between the front end of the inner support frame and the inner wall of the outer shell, and the front end of the button main control board extends through to the front side of the outer shell. The two motor control boards are fixedly connected between one side of the inner support frame and the inner wall of the outer shell, and the two motor control boards are electrically connected to the button main control board and the two drive motors.

[0011] As a preferred embodiment of this utility model, two monitoring sensors are fixedly connected to the inner support frame, and the two monitoring sensors correspond to two driven pulleys respectively. A signal acquisition board is fixedly connected between the rear end of the inner support frame and the inner wall of the outer shell, and the two monitoring sensors and the button control board are electrically connected to the signal acquisition board.

[0012] As a preferred embodiment of this utility model, a power supply board is fixedly connected between one side of the inner support frame and the inner wall of the outer shell, and the power supply board is electrically connected to the button main control board, the two motor control boards and the signal acquisition board.

[0013] As a preferred embodiment of this utility model, two sensing modules are provided between the bottom end of the outer shell and the circumferential surface of the two threaded rods, and the two sensing modules correspond to the two rotating blocks respectively and are electrically connected to the power supply board.

[0014] 3. Beneficial effects

[0015] Compared with existing technologies, the advantages of this utility model are:

[0016] (1) In this solution, the CT contrast high-pressure injector uses an operation control component to drive the drive component. The drive component drives two threaded rods to rotate, and the two threaded rods cause two threaded tubes to extend and retract within the inner support frame. This allows the two connectors to drive the pistons to inject drugs into the two injection syringes. Not only is the structure simple and easy to operate, but also, while ensuring the normal operation of the injector, the drive component is located on the inner side of the inner support frame, so that the two large drive motors and the two threaded rods are placed horizontally, making the structure more compact and shortening the overall length of the injector. The control component is located in the gap between the inner wall of the outer shell and the surface of the inner support frame, making reasonable use of the installation space, further reducing the overall volume of the injector, making it convenient for staff to use, saving costs, and avoiding excessive space occupation due to excessive size. Attached Figure Description

[0017] Figure 1 This is the front view of the present invention;

[0018] Figure 2 This is a cross-sectional view of the present invention;

[0019] Figure 3 This is a first structural diagram of the internal structure of this utility model;

[0020] Figure 4 This is a second structural diagram of the internal structure of this utility model.

[0021] Explanation of the labels in the diagram:

[0022] 1. Outer shell; 2. Inner support frame; 3. Connecting seat; 4. Injection syringe; 5. Threaded rod; 6. Threaded tube; 7. Connector; 81. Drive motor; 82. Driving pulley; 83. Driven pulley; 84. Belt; 9. Rotating block; 101. Button main control board; 102. Motor control board; 11. Monitoring sensor; 12. Signal acquisition board; 13. Power supply board; 14. Sensing module. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example:

[0027] Please see Figures 1-4 A CT contrast-enhancing high-pressure injector includes a housing 1. An inner support frame 2 and two connecting seats 3 are fixedly connected inside the housing 1, with both connecting seats 3 fixedly connected to the top of the inner support frame 2. Two injection syringes 4 are detachably connected to the top of the housing 1, with the bottom ends of the two injection syringes 4 penetrating into the two connecting seats 3 respectively. Two threaded rods 5 are rotatably connected inside the inner support frame 2, with the bottom ends of both threaded rods 5 penetrating to the lower side of the housing 1. Threaded tubes 6 are threadedly connected to the circumferential surfaces of both threaded rods 5, and both threaded tubes 6 are slidably connected inside the inner support frame 2. Connectors 7 are fixedly connected to the top of both threaded tubes 6, and the two connectors 7 are located within the two connecting seats 3, corresponding to the two injection syringes 4. A drive assembly is provided on the inner support frame 2 to control the rotation of the two threaded rods 5. Rotating blocks 9 are threadedly connected to the bottom ends of both threaded rods 5, and both rotating blocks 9 are located on the lower side of the housing 1. A control assembly is provided inside the housing 1 to control the operation of the drive assembly.

[0028] In this embodiment, two syringes 4 are inserted from the top of the outer shell 1 into two connecting seats 3, corresponding to two connecting heads 7. The two connecting heads 7 are connected to drug-push pistons in the two syringes 4, respectively. The two syringes 4 are used to inject contrast agent and saline, respectively. Two threaded rods 5 are rotatably connected inside the inner support frame 2. The drive component is controlled by the control component to work. The drive component can drive the two threaded rods 5 to rotate. The two threaded rods 5 drive the two threaded tubes 6 to rise and fall in the inner support frame 2, thereby causing the two connecting heads 7 to drive the two drug-push pistons to move in the two syringes 4 to push the drug solution into the body. When there is air in the two syringes 4, the two threaded rods 5 can be rotated manually by rotating the two rotating blocks 9, so as to manually push the drug solution into the two connecting heads 7, thereby expelling the air in the two syringes 4 and preventing air from being injected into the human body with the drug solution.

[0029] Specifically, the drive assembly includes two drive motors 81, two drive pulleys 82, two driven pulleys 83, and two belts 84. The two drive motors 81 are fixedly connected to the inner side of the inner support frame 2. The two drive pulleys 82 are respectively fixedly connected to the output ends of the two drive motors 81. The two driven pulleys 83 are respectively fixedly connected to the circumferential surfaces of the two threaded rods 5. The two belts 84 are respectively connected between the two drive pulleys 82 and the two driven pulleys 83.

[0030] In this embodiment, two drive motors 81 are arranged parallel to the inner side of the inner support frame 2 and between the two threaded rods 5. When injecting contrast agent and saline, each drive motor 81 controls one active pulley 82 to rotate. The two active pulleys 82 drive the two driven pulleys 83 to rotate through two belts 84. The two driven pulleys 83 control the rotation of the two threaded rods 5, thereby causing the two connectors 7 to move two pistons in the two injection syringes 4 to inject the drug solution.

[0031] Specifically, the control components include a button main control board 101 and two motor control boards 102. The button main control board 101 is fixedly connected between the front end of the inner support frame 2 and the inner wall of the outer shell 1, and the front end of the button main control board 101 extends to the front side of the outer shell 1. The two motor control boards 102 are fixedly connected between one side of the inner support frame 2 and the inner wall of the outer shell 1, and the two motor control boards 102 are electrically connected to the button main control board 101 and the two drive motors 81.

[0032] In this embodiment, the button main control board 101 and the two motor control boards 102 are both located in the gap between the inner support frame 2 and the outer shell 1. The two motor control boards 102 are electrically connected to the two drive motors 81 respectively. The button main control board 101 can control the switching and rotation direction of the two drive motors 81 respectively through the two motor control boards 102, thereby realizing the rotation control of the two threaded rods 5.

[0033] Specifically, two monitoring sensors 11 are fixedly connected to the inner support frame 2, and the two monitoring sensors 11 correspond to the two driven pulleys 83 respectively. A signal acquisition board 12 is fixedly connected between the rear end of the inner support frame 2 and the inner wall of the outer shell 1, and the two monitoring sensors 11 and the button main control board 101 are electrically connected to the signal acquisition board 12.

[0034] In this embodiment, two monitoring sensors 11 are used to monitor the number of rotations of the two driven pulleys 83. The signal acquisition board 12 collects the monitoring information from the two monitoring sensors 11 to determine the number of rotations of the two threaded rods 5, thereby obtaining the amount of medicine pushed by the piston driven by the two connectors 7 moving in the two injection syringes 4, ensuring the accuracy of the medicine injection volume.

[0035] Specifically, a power supply board 13 is fixedly connected between one side of the inner support frame 2 and the inner wall of the outer shell 1, and the power supply board 13 is electrically connected to the button main control board 101, the two motor control boards 102 and the signal acquisition board 12.

[0036] In this embodiment, the power supply board 13 is connected to an external power supply to the main control board 101, two motor control boards 102, and signal acquisition board 12 to provide power to the high-pressure injector.

[0037] Specifically, two sensing modules 14 are provided between the bottom end of the outer casing 1 and the circumferential surfaces of the two threaded rods 5, and the two sensing modules 14 correspond to the two rotating blocks 9 respectively and are electrically connected to the power supply board 13.

[0038] In this embodiment, the two sensing modules 14 are used to calculate the number of manual rotations of the two rotating blocks 9, determine the drug-pushing position of the two connectors 7, and ensure the accuracy of subsequent drug injection driven by the pistons of the two connectors 7.

[0039] Working principle: When injecting contrast agents and saline solution into the human body, two syringes 4 are installed on the upper end of the outer shell 1 and connected to two connecting seats 3. Two connecting heads 7 are respectively connected to the pistons inside the two syringes 4. When air is mixed in the drug solution inside the two syringes 4, rotating the two rotating blocks 9 causes the two threaded rods 5 to rotate. The two threaded rods 5 extend the two threaded tubes 6, which in turn drive the pistons on the two connecting heads 7 to move, expelling the air from the drug solution inside the two syringes 4. Then, the two syringes 4 are connected to the indwelling needle on the human body through tubing. According to the injection requirements, the main button is used to... The control board 101 transmits signals to two motor control boards 102. The two motor control boards 102 control the rotation direction and number of revolutions of the two drive motors 81 respectively. The two drive motors 81 drive the two active pulleys 82 to rotate. The two active pulleys 82 drive the two driven pulleys 83 to rotate to the required number of revolutions through two belts 84. The two driven pulleys 83 cause the two threaded rods 5 to rotate within the inner support frame 2. The two threaded rods 5 cause the two threaded tubes 6 to extend within the inner support frame 2. The two threaded tubes 6 push the pistons of the two injection syringes 4 through two connectors 7, thereby realizing the separate injection of contrast agent and saline.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A CT contrast-enhancing high-pressure injector, comprising a housing (1), characterized in that: The outer shell (1) is fixedly connected to an inner support frame (2) and two connecting seats (3), and the two connecting seats (3) are fixedly connected to the top of the inner support frame (2). The top of the outer shell (1) is detachably connected to two injection syringes (4), and the bottom ends of the two injection syringes (4) respectively penetrate into the two connecting seats (3). The inner support frame (2) is rotatably connected to two threaded rods (5), and the bottom ends of the two threaded rods (5) penetrate into the lower side of the outer shell (1). The circumferential surfaces of the two threaded rods (5) are threaded with threaded tubes (6), and the two threaded tubes (6) are threaded together. Both are slidably connected to the inner support frame (2). The top ends of the two threaded tubes (6) are fixedly connected to the connectors (7), and the two connectors (7) are respectively located in the two connecting seats (3) and correspond to the two injection syringes (4). The inner support frame (2) is provided with a drive assembly, which is used to control the rotation of the two threaded rods (5). The bottom ends of the two threaded rods (5) are threadedly connected to rotating blocks (9), and the two rotating blocks (9) are located on the lower side of the outer shell (1). The outer shell (1) is provided with a control assembly, which is used to control the operation of the drive assembly.

2. The CT contrast high-pressure injector according to claim 1, characterized in that: The drive assembly includes two drive motors (81), two drive pulleys (82), two driven pulleys (83), and two belts (84). The two drive motors (81) are fixedly connected to the inner side of the inner support frame (2). The two drive pulleys (82) are respectively fixedly connected to the output ends of the two drive motors (81). The two driven pulleys (83) are respectively fixedly connected to the circumferential surfaces of the two threaded rods (5). The two belts (84) are respectively driven between the two drive pulleys (82) and the two driven pulleys (83).

3. A CT contrast-enhancing high-pressure injector according to claim 2, characterized in that: The control assembly includes a button main control board (101) and two motor control boards (102). The button main control board (101) is fixedly connected between the front end of the inner support frame (2) and the inner wall of the outer shell (1), and the front end of the button main control board (101) extends to the front side of the outer shell (1). The two motor control boards (102) are fixedly connected between one side of the inner support frame (2) and the inner wall of the outer shell (1), and the two motor control boards (102) are electrically connected to the button main control board (101) and the two drive motors (81).

4. A CT contrast-enhancing high-pressure injector according to claim 3, characterized in that: Two monitoring sensors (11) are fixedly connected to the inner support frame (2), and the two monitoring sensors (11) are respectively corresponding to two driven pulleys (83). A signal acquisition board (12) is fixedly connected between the rear end of the inner support frame (2) and the inner wall of the outer shell (1), and the two monitoring sensors (11) and the button main control board (101) are electrically connected to the signal acquisition board (12).

5. A CT contrast-enhancing high-pressure injector according to claim 4, characterized in that: A power supply board (13) is fixedly connected between one side of the inner support frame (2) and the inner wall of the outer shell (1), and the power supply board (13) is electrically connected to the button main control board (101), the two motor control boards (102) and the signal acquisition board (12).

6. A CT contrast-enhancing high-pressure injector according to claim 5, characterized in that: Two sensing modules (14) are provided between the bottom end of the outer shell (1) and the circumferential surface of the two threaded rods (5), and the two sensing modules (14) correspond to the two rotating blocks (9) respectively and are electrically connected to the power supply board (13).

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