Injection head quick replacement mechanism of radiography high-pressure injector

Abstract

The utility model relates to the technical field of radiography high-pressure injectors, in particular to a quick injection head replacing mechanism of a radiography high-pressure injector, which comprises a support frame, a mounting plate fixedly connected to the bottom of the support frame, two push rods movably connected inside the support frame, and two injection head pistons movably connected to the bottom of the mounting plate. The bottoms of the push rods penetrate through the mounting plate and are fixedly connected with limiting seats, the top of the injection head piston is fixedly connected with two limiting pins, the two corresponding limiting pins are matched with the corresponding limiting seats for use, and sealing rings are fixedly connected to the positions, located below the mounting plate, of the outer portions of the push rods; and three sealing rings are fixedly connected to the outer part of the injection head piston at equal intervals. The disposable syringe has the advantages that it is guaranteed that the disposable syringe can be effectively disinfected or replaced before being used every time, the risk of cross infection between different patients is reduced, the operation safety and the hygienic standard are improved, and compared with a traditional device, the operation quality and the use efficiency are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of high pressure injector for radiography, especially relates to a quick replacement mechanism of injection head of high pressure injector for radiography. BACKGROUND

[0002] In the medical imaging field, the high pressure injector for radiography is an important auxiliary equipment, which is used for injecting contrast medium into the patient's body at high speed and high pressure, so as to more clearly display the internal structure of blood vessels, organs and the like in X-ray, CT (computed tomography), MRI (magnetic resonance imaging) and other image examinations.

[0003] For many image examinations, whether the injection of contrast medium can be quickly and accurately completed directly relates to the imaging effect, and further influences the accuracy and efficiency of disease diagnosis.

[0004] At present, the injection head on most high pressure injectors for radiography cannot be quickly replaced, and since the high pressure injector for radiography directly contacts the human body, the injection head must be replaced every time to prevent cross infection, resulting in a relatively cumbersome disassembly process of the injection head part, and the doctor needs to spend a certain amount of time when replacing the injection head required for different patients or different examination items, thereby affecting the continuity and efficiency of diagnosis and treatment.

[0005] In view of the above problems, we provide a quick replacement mechanism of injection head of high pressure injector for radiography. UTILITY MODEL CONTENT

[0006] The utility model discloses a kind of quick replacement mechanism of injection head of high pressure injector for radiography, to solve the technical problem in background technology.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] A kind of quick replacement mechanism of injection head of high pressure injector for radiography, including support frame, the bottom of the support frame is fixedly connected with mounting plate, the inside of the support frame is movably connected with two push rods, the bottom of the mounting plate is movably connected with two injection head pistons, the bottom of the push rod is all through mounting plate and is fixedly connected with limit seat, the top of the injection head piston is all fixedly connected with two limit pins, corresponding two limit pins are used in cooperation with corresponding limit seat, the outside of the push rod and below mounting plate are all fixedly connected with sealing ring, the outside of the injection head piston is all fixedly connected with three sealing rings at equal intervals.

[0009] The support frame provides stable structural support, ensures the fixation and operation of all components, the push rod pushes the injection head piston for injection and replacement, the injection head piston top is fixedly connected with two limit pins, cooperates with the limit seat to realize the quick replacement and stable injection operation of the injection head, the limit seat is fixedly connected at the bottom of the push rod and cooperates with the limit pin to ensure that the injection head piston can be quickly positioned and fixed during replacement, the sealing ring ensures the sealing property during injection, the sealing ring is in contact with the inner wall of the medicine storage tube, further enhances the sealing property, and the injection precision and safety are improved.

[0010] In a preferred scheme, the bottom of the mounting plate and the outside of the push rod are fixedly connected with pressure sensing seats, the bottom of the pressure sensing seat is movably connected with a medicine storage tube, and the sealing ring and the sealing ring are in contact with the inner wall of the corresponding medicine storage tube.

[0011] The pressure sensing seat is arranged to detect the pressure in the medicine storage tube, so as to ensure the safety and accuracy of the injection process.

[0012] In a preferred scheme, the top of the support frame is fixedly connected with two motors, the output shafts of the motors extend into the inside of the support frame and are fixedly connected with lead screws, and the bottoms of the lead screws are threadedly connected with the tops of the corresponding push rods.

[0013] The motor and the lead screw are arranged to drive the linear motion of the push rod, so as to realize the injection operation of the injection head.

[0014] In a preferred scheme, the inside of the support frame and one side of the push rod are fixedly connected with a limit rod, the outside of the limit rod is slidably connected with a limit block, and one side of the limit block is fixedly connected with the outside of the corresponding push rod.

[0015] The limit rod and the limit block are arranged to provide guidance and limiting action for the movement of the push rod, so as to ensure that the push rod remains straight and stable during movement.

[0016] In a preferred scheme, the bottom of the mounting plate and the outside of the pressure sensing seat, the injection head piston and the medicine storage tube are fixedly connected with a protective cover.

[0017] The protective cover is arranged to protect the injection head piston, the pressure sensing seat and the medicine storage tube, prevent the influence of the external environment on these components, and ensure their normal operation.

[0018] In a preferred scheme, one side of the top of the support frame is fixedly connected with a support plate, the top of the support plate is fixedly connected with an indicator light plate, and the top of the indicator light plate is fixedly connected with two indicator light covers.

[0019] The indicating lamp plate and the indicating lamp cover are arranged to display the running state and warning information of the device, such as the motor running state, pressure abnormality and the like.

[0020] In a preferred scheme, the support frame is fixedly connected with a Bluetooth module on one side, and a main control board is fixedly connected on one side of the support frame, and the pressure sensing seat, the motor, the indicating lamp plate and the Bluetooth module are electrically connected with the main control board.

[0021] The main control board is arranged to control and manage the running of the whole device, including the driving of the motor, the data reading of the pressure sensing seat, the display of the indicating lamp plate and the communication of the Bluetooth module.

[0022] The injection head quick replacement mechanism of the contrast high-pressure injector has the following advantages:

[0023] In the utility model, when using, the limit seat is fixedly connected at the bottom of the push rod, and is used in cooperation with the limit pin, so that the injection head piston can be quickly positioned and fixed during replacement, on one hand, the injection head can be effectively disinfected or replaced before each use, the cross-infection risk between different patients is reduced, the safety and hygiene standards of operation are improved, on the other hand, the doctor can quickly switch between continuous multiple patients, the waiting time caused by replacing the injection head is reduced, so that the work efficiency and examination capacity of the imaging department are significantly improved, especially in the case of emergency or multiple appointments closely connected, the operation quality and use efficiency are greatly improved compared with the traditional device. ACCURACY OF DRAWINGS

[0024] Figure 1 It is a first perspective stereogram of the injection head quick replacement mechanism of the contrast high-pressure injector.

[0025] Figure 2 It is a second perspective stereogram of the injection head quick replacement mechanism of the contrast high-pressure injector.

[0026] Figure 3 It is a partial isometric schematic view of the injection head quick replacement mechanism of the contrast high-pressure injector.

[0027] Figure 4 It is a partial isometric schematic view of the injection head quick replacement mechanism of the contrast high-pressure injector.

[0028] Figure 5 It is a push rod structure schematic view of the injection head quick replacement mechanism of the contrast high-pressure injector.

[0029] Figure 6 It is Figure 4 The enlarged view of A in the middle.

[0030] In the drawings: 1, support frame; 2, mounting plate; 3, pressure sensing seat; 4, push rod; 5, injection head piston; 6, medicine storage tube; 7, limiting seat; 8, limiting pin; 9, sealing ring; 10, sealing ring; 11, motor; 12, screw rod; 13, limiting rod; 14, limiting block; 15, support plate; 16, indicator light plate; 17, indicator light cover; 18, Bluetooth module; 19, main control board; 20, protective cover. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments. The components of the embodiments of the present application described and indicated in the drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0032] The injection head quick replacement mechanism of the contrast high-pressure injector disclosed by the utility model mainly applies to the scene of the contrast high-pressure injector.

[0033] Reference Figure 4 and Figure 5 An injection head quick replacement mechanism of a contrast high-pressure injector, comprising a support frame 1, a mounting plate 2 is fixedly connected to the bottom of the support frame 1, two push rods 4 are movably connected to the inside of the support frame 1, two injection head pistons 5 are movably connected to the bottom of the mounting plate 2, the bottoms of the push rods 4 all penetrate through the mounting plate 2 and are fixedly connected with limiting seats 7, the tops of the injection head pistons 5 are all fixedly connected with two limiting pins 8, the two limiting pins 8 are used in cooperation with the corresponding limiting seats 7, the outsides of the push rods 4 and below the mounting plate 2 are all fixedly connected with sealing rings 9, and the outsides of the injection head pistons 5 are all fixedly connected with three sealing rings 10 at equal intervals.

[0034] In the embodiment: the support frame 1 provides stable structural support, ensures the fixation and operation of all components, the push rod 4 pushes the injection head piston 5 to inject and replace, the top of the injection head piston 5 is fixedly connected with two limiting pins 8, which are used in cooperation with the limiting seats 7, so that the injection head can be quickly replaced and stably injected, the limiting seat 7 is fixedly connected to the bottom of the push rod 4 and used in cooperation with the limiting pin 8, so that the injection head piston 5 can be quickly positioned and fixed during replacement, the sealing ring 9 ensures the sealing property during injection, the sealing ring 10 is in contact with the inner wall of the medicine storage tube 6, further enhancing the sealing property, and improving the injection precision and safety.

[0035] Referring to Figure 3 and Figure 6 In a preferred embodiment, the bottom of the mounting plate 2 and outside the push rod 4 are fixedly connected with the pressure sensing seat 3, and the bottom of the pressure sensing seat 3 is movably connected with the medicine storage tube 6. The sealing ring 9 and the sealing ring 10 are in contact with the inner wall of the corresponding medicine storage tube 6.

[0036] In this embodiment, the pressure sensing seat 3 is used to detect the pressure in the medicine storage tube 6, ensuring the safety and accuracy of the injection process.

[0037] Referring to Figure 1 and Figure 3 In a preferred embodiment, the top of the support frame 1 is fixedly connected with two motors 11, and the output shaft of the motor 11 extends to the inside of the support frame 1 and is fixedly connected with the lead screw 12. The bottom of the lead screw 12 is threadedly connected with the top of the corresponding push rod 4.

[0038] In this embodiment, the motor 11 and the lead screw 12 are used to drive the linear motion of the push rod 4, realizing the injection operation of the injection head.

[0039] Referring to Figure 1 and Figure 3 In a preferred embodiment, the inside of the support frame 1 and one side of the push rod 4 are fixedly connected with the limiting rod 13, and the outside of the limiting rod 13 is slidingly connected with the limiting block 14. One side of the limiting block 14 is fixedly connected with the outside of the corresponding push rod 4.

[0040] In this embodiment, the limiting rod 13 and the limiting block 14 provide guidance and limiting action for the movement of the push rod 4, ensuring that the push rod 4 remains straight and stable during movement.

[0041] Referring to Figure 1 and Figure 2 In a preferred embodiment, the bottom of the mounting plate 2 and outside the pressure sensing seat 3, the injection head piston 5 and the medicine storage tube 6 are fixedly connected with the protective cover 20.

[0042] In this embodiment, the protective cover 20 is used to protect the injection head piston 5, the pressure sensing seat 3 and the medicine storage tube 6, preventing the influence of the external environment on these components, ensuring their normal operation.

[0043] Referring to Figure 1 and Figure 2 In a preferred embodiment, one side of the top of the support frame 1 is fixedly connected with the support plate 15, and the top of the support plate 15 is fixedly connected with the indicator light plate 16. The top of the indicator light plate 16 is fixedly connected with two indicator light covers 17.

[0044] The indicator light plate 16 and the indicator light cover 17 are used to display the running state and warning information of the device, such as the running state of the motor 11, pressure abnormalities, etc.

[0045] With reference to Figure 1 And Figure 2 In a preferred embodiment, the support frame 1 is fixedly connected with a Bluetooth module 18 on one side, and a main control panel 19 is fixedly connected on one side of the support frame 1, and the pressure sensing seat 3, the motor 11, the indicator light plate 16 and the Bluetooth module 18 are electrically connected with the main control panel 19.

[0046] In this embodiment, the main control panel 19 is used to control and manage the running of the entire device, including the driving of the motor 11, the data reading of the pressure sensing seat 3, the display of the indicator light plate 16 and the communication of the Bluetooth module 18.

[0047] Working principle: when the operator needs to replace the injection head, first unlock the cooperation between the limiting pin 8 and the limiting seat 7, the design of the limiting pin 8 and the limiting seat 7 ensures the stable position of the injection head piston 5 in the working state, when it needs to be replaced, the limiting pin 8 can be removed from the limiting seat 7 through simple mechanical unlocking operation, after unlocking the limiting pin 8, the operator can easily take out the injection head piston 5 from the drug storage tube 6, replace the new injection head piston 5, put the new injection head piston 5 into the drug storage tube 6, ensure that the limiting pin 8 on the injection head piston 5 is aligned with the limiting seat 7, and relock the limiting pin 8 to ensure the stability of the injection head piston 5, after the main control panel 19 receives the injection instruction, the motor 11 is started, the output shaft of the motor 11 rotates to drive the corresponding screw rod 12 to rotate, the rotation of the screw rod 12 makes the push rod 4 move downward through the threaded connection, the bottom of the push rod 4 is fixedly connected with the limiting seat 7, the limiting seat 7 pushes the top limiting pin 8 of the injection head piston 5 to make the injection head piston 5 move downward, the contrast medium in the drug storage tube 6 is injected into the target site, the sealing ring 9 and the sealing ring 10 ensure the sealing property of the push rod 4 and the injection head piston 5 during the movement process, prevent the contrast medium from leaking or external pollutants from entering, the pressure sensing seat 3 is fixed at the bottom of the mounting plate 2 and is used in cooperation with the drug storage tube 6 to monitor the pressure change in the drug storage tube 6 in real time, the doctor can switch between multiple patients more quickly, reduce the waiting time caused by replacing the injection head, thereby significantly improving the work efficiency and examination capacity of the imaging department, especially in the case of emergency or multiple appointments closely connected, the operation quality and use efficiency are greatly improved compared with the traditional device.

[0048] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. The substitution can be the substitution of part of the structure, device, method step, or the complete technical solution. According to the technical solution and the utility model concept of the present application, equivalent substitution or change should be covered within the protection scope of the present application.

Claims

1. A quick replacement mechanism of a syringe head of a contrast high-pressure injector, comprising a support frame (1), characterized in that, The bottom of the supporting frame (1) is fixedly connected with a mounting plate (2), the inside of the supporting frame (1) is movably connected with two push rods (4), the bottom of the mounting plate (2) is movably connected with two injection head pistons (5), the bottom of the push rod (4) penetrates the mounting plate (2) and is fixedly connected with a limiting seat (7), the top of the injection head piston (5) is fixedly connected with two limiting pins (8), the corresponding limiting pin (8) is used in cooperation with the corresponding limiting seat (7), the outside of the push rod (4) and below the mounting plate (2) are fixedly connected with a sealing ring (9), and the outside of the injection head piston (5) is fixedly connected with three sealing rings (10) at equal intervals.

2. The injection head quick change mechanism for a contrast high pressure injector of claim 1, wherein, The bottom of the mounting plate (2) and outside the push rod (4) are fixedly connected with a pressure sensing seat (3), and the bottom of the pressure sensing seat (3) is movably connected with a medicine storage tube (6); the sealing ring (9) and the sealing ring (10) are in contact with the inner wall of the corresponding medicine storage tube (6).

3. The injection head quick change mechanism of a contrast high pressure injector according to claim 2, wherein, The top of the supporting frame (1) is fixedly connected with two motors (11), the output shafts of the motors (11) extend into the inside of the supporting frame (1) and are fixedly connected with lead screws (12), and the bottoms of the lead screws (12) are threadedly connected with the tops of the corresponding push rods (4).

4. The injection head quick change mechanism for a contrast high pressure injector of claim 1, wherein, The inside of the supporting frame (1) and on one side of the push rod (4) are fixedly connected with limiting rods (13), the outside of the limiting rod (13) is slidably connected with a limiting block (14), and one side of the limiting block (14) is fixedly connected with the outside of the corresponding push rod (4).

5. The injection head quick change mechanism for a contrast high pressure injector of claim 3, wherein, The bottom of the mounting plate (2) and outside the pressure sensing seat (3), the injection head piston (5) and the medicine storage tube (6) are fixedly connected with a protective cover (20).

6. The injection head quick change mechanism of a contrast high pressure injector according to claim 5, wherein, One side of the top of the supporting frame (1) is fixedly connected with a supporting plate (15), the top of the supporting plate (15) is fixedly connected with an indicator light plate (16), and the top of the indicator light plate (16) is fixedly connected with two indicator light covers (17).

7. The quick change mechanism of the injection head of the contrast high pressure injector according to claim 6, characterized in that, One side of the supporting frame (1) is fixedly connected with a Bluetooth module (18), one side of the supporting frame (1) is fixedly connected with a main control panel (19), and the pressure sensing seat (3), the motor (11), the indicator light plate (16) and the Bluetooth module (18) are electrically connected with the main control panel (19).

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