Pull rope type switch device for injection branch pipe of high-pressure injector

Abstract

The utility model discloses a pull rope type switch device for an injection branch pipe of a high-pressure injector, which comprises a panel arranged on a high-pressure injector main machine, the injection branch pipe made of elastic materials is arranged on the front side of the panel, and an ejector rod switch assembly is further arranged on the panel. The ejector rod switch assembly comprises a swing arm rotating structure and an ejector rod in sliding fit with the panel, and one end of the ejector rod directly faces the side wall of the injection branch pipe. The ejector rod is linked with one end of a pull rope through the swing arm rotating structure, and the other end of the pull rope is connected with a pull rope driving mechanism. According to the pull rope type switch device for the injection branch pipe of the high-pressure injector, the injection branch pipe does not need to be detached when the ejector rod switch assembly is overhauled and replaced, and liquid in the injection branch pipe can be prevented from flowing out.

Description

TECHNICAL FIELD

[0001] The utility model relates to high pressure injector field especially relates to a high pressure injector's injection branch pipe pull rope formula switch device. BACKGROUND

[0002] High pressure injector is widely used in clinical cardiovascular angiography examination, CT enhanced angiography scanning and MR enhanced scanning examination and treatment, and its main role is to inject contrast medium or physiological saline into the human body. Contrast agent is a special medicine, which plays a crucial role in medical imaging, helping doctors to observe and diagnose the internal organs and structures of patients. One or more bottle holders for placing medicine bottles are provided on the high pressure injector according to the situation, the bottle holder is provided with a puncture device, the medicine bottle is inserted upside down in the upper end of the puncture device, and the lower end of the puncture device is communicated with the injection branch pipe.

[0003] Although the on-off of the injection branch pipe can be realized through the valve, when the valve is replaced, the valve needs to be detached from the injection branch pipe, resulting in that the liquid in the injection branch pipe flows out, and the flowed-out liquid is easy to fall on the outer surface of the high pressure injector, which is not only difficult to clean, but also easy to damage the electronic devices. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a high pressure injector's injection branch pipe pull rope formula switch device, which does not need to detach the injection branch pipe when overhauling and replacing the ejector rod switch assembly, and can avoid the liquid in the injection branch pipe from flowing out.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a high pressure injector's injection branch pipe pull rope formula switch device, which comprises a panel arranged on the host of the high pressure injector, the front surface of the panel is provided with an injection branch pipe made of elastic material, and the panel is further provided with an ejector rod switch assembly; the ejector rod switch assembly comprises a swing arm rotating structure and an ejector rod which is in sliding cooperation with the panel, and the one end of the ejector rod is opposite to the side wall of the injection branch pipe; the ejector rod is connected with the one end of a pull rope through the swing arm rotating structure, and the other end of the pull rope is connected with a pull rope driving mechanism.

[0006] As a further improvement of the utility model, the ejector rod switch assembly further comprises a mounting seat arranged on the back surface of the panel, the ejector rod is slidably connected to the mounting seat and a return spring is arranged between the ejector rod and the mounting seat; the front end of the ejector rod penetrates through the panel, and the mounting seat is provided with a micro switch corresponding to the rear end of the ejector rod.

[0007] As a further improvement of the utility model, the swing arm rotating structure comprises a swing arm and a pull rope seat, the pull rope seat is connected with the one end of the pull rope, the swing arm comprises a first swing arm and a second swing arm which are located on both sides of the middle part of the swing arm, and the middle part of the swing arm is rotatably connected to the mounting seat through a first rotating shaft; the ejector rod is provided with a groove, and the free end of the first swing arm extends into the groove; the second swing arm is rotatably connected with the pull rope seat through a second rotating shaft.

[0008] As a further improvement of the utility model, the ejector rod comprises an ejector rod head, a transition section and a tail rod arranged in sequence along the axial direction, the groove is arranged on the side wall of the transition section, and the reset spring is sleeved on the tail rod and located between the mounting seat and the end of the transition section; the ejector rod head penetrates through the panel, and the tail rod rear end corresponds to the micro switch.

[0009] As a further improvement of the utility model, the front end of the ejector rod head is provided with a transversely arranged protruding rib, the protruding rib is opposite to the side wall of the injection branch pipe, and the length of the protruding rib is not less than the cross section diameter of the injection branch pipe.

[0010] As a further improvement of the utility model, the panel is provided with a copper sleeve, the front end of the ejector rod penetrates through the copper sleeve and is in sliding fit therebetween.

[0011] As a further improvement of the utility model, the pull rope driving mechanism comprises a telescopic rod located at the output end thereof, and the telescopic rod is connected with the other end of the pull rope; the pull rope driving mechanism is installed on the base of the high-pressure injector host, a plurality of pulleys are rotatably connected on the high-pressure injector host, the pull rope passes through the pulleys and is turned by the pulleys.

[0012] As a further improvement of the utility model, the front face of the panel is provided with a four-way pipe, three input ends of the four-way pipe are in communication with the output ends of the three injection branch pipes respectively, and the four-way pipe is further provided with one output end; the panel is further provided with a pipe clamping piece, and the injection branch pipe is arranged on the pipe clamping piece; the front end of the ejector rod is located between the pipe clamping piece and the input end of the four-way pipe.

[0013] Advantageous effects

[0014] Compared with the prior art, the injection branch pipe pull rope type switch device of the high-pressure injector has the following advantages:

[0015] 1. The on-off of the injection branch pipe is realized by the extrusion of the ejector rod of the ejector rod switch assembly. When the front end of the ejector rod flattens the middle part of the injection branch pipe, the injection branch pipe is closed, and the liquid does not pass through; when the front end of the ejector rod is retracted, the injection branch pipe restores the conduction. When the ejector rod switch assembly needs to be repaired and replaced, the injection branch pipe does not need to be disassembled, the liquid in the injection branch pipe can be prevented from flowing out, and the clean working environment is ensured.

[0016] 2. The pull rope driving mechanism is installed on the base of the high-pressure injector host, is linked with the ejector rod switch assembly through the pull rope, and has a low installation position due to the relatively large weight, so that the stability of the high-pressure injector host can be improved.

[0017] 3. When the ejector rod moves backward, the micro switch can be triggered, the micro switch can transmit a signal to the controller, the injection branch pipe corresponding to the ejector rod is in the conduction state at this time, and the system is facilitated to be monitored.

[0018] 4. The length of the convex rib of the ejector rod head is not less than the cross-sectional diameter of the injection branch pipe, so that the convex rib can completely close the injection branch pipe when it is pressed.

[0019] 5. The front end of the ejector rod penetrates the copper sleeve and they are in sliding fit, so that the resistance of the ejector rod is effectively reduced when it slides.

[0020] The utility model will become more clear through the following description and in conjunction with the drawings, these drawings are used to explain the utility model embodiment. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the utility model embodiment or the technical scheme in prior art, the following will briefly introduce the drawing needed to be used in embodiment or prior art description, obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0022] Figure 1 It is the perspective view of the injection branch pipe pull rope type switch device of high-pressure injector;

[0023] Figure 2 It is the perspective view of the front of the panel;

[0024] Figure 3 It is the side view of the ejector rod switch assembly and the panel;

[0025] Figure 4 It is the side view of the ejector rod switch assembly;

[0026] Figure 5 It is one of the internal structure diagrams of the ejector rod switch assembly;

[0027] Figure 6 It is the second internal structure diagram of the ejector rod switch assembly. DETAILED DESCRIPTION

[0028] The embodiments of the utility model will be described with reference to the drawings.

[0029] EMBODIMENT

[0030] The specific implementation of the utility model as Figures 1 to 6 shown, a kind of injection branch pipe pull rope type switch device of high-pressure injector, including being set on the high-pressure injector host panel 1, the front of panel 1 is equipped with using the injection branch pipe 8 of elastic material, panel 1 still is equipped with ejector rod switch assembly 6.Ejector rod switch assembly 6 includes swing arm rotating structure and with the sliding fit of panel 1 top rod 62, top rod 62 one end is opposite the side wall of injection branch pipe 8.Top rod 62 is linked with the one end of pull rope 4 by swing arm rotating structure, and the other end of pull rope 4 is connected with pull rope drive mechanism 3.

[0031] The top rod switch assembly 6 further comprises a mounting base 61 mounted on the back of the panel 1, a top rod 62 slidingly connected to the mounting base 61 and a return spring 66 arranged between the two. The top rod 62 has a front end penetrating the panel 1, and the mounting base 61 is provided with a micro switch 7 corresponding to the rear end of the top rod 62. The micro switch 7 is provided with a conductive elastic sheet 71 and a conductive contact 72, and the two are separated under no external force. The micro switch 7 is electrically connected to the controller of the high-pressure injector.

[0032] The swing arm rotating structure comprises a swing arm 65 and a pull rope base 63, the pull rope base 63 is connected to one end of the pull rope 4, and the swing arm 65 comprises a first swing arm 651 and a second swing arm 652 arranged on both sides of the middle part of the swing arm 65. The middle part of the swing arm 65 is rotatably connected to the mounting base 61 through a first rotating shaft 650. The top rod 62 is provided with a groove 625, and the free end of the first swing arm 651 extends into the groove 625. The second swing arm 652 is rotatably connected to the pull rope base 63 through a second rotating shaft 631.

[0033] The top rod 62 comprises a top rod head 621, a transition section 622 and a tail rod 623 arranged in sequence along the axial direction, the groove 625 is arranged on the side wall of the transition section 622, and the return spring 66 is sleeved on the tail rod 623 and located between the mounting base 61 and the end of the transition section 622. The top rod head 621 penetrates the panel 1, and the rear end of the tail rod 623 corresponds to the micro switch 7. The top rod head 621 and the tail rod 623 are both slidingly matched with the mounting base 61, and the top rod 62 as a whole can move linearly reciprocatingly relative to the mounting base 1.

[0034] The front end of the top rod head 621 is provided with a transversely arranged protruding rib 624, the protruding rib 624 is opposite to the side wall of the injection branch pipe 8, and the length of the protruding rib 624 is not less than the cross-sectional diameter of the injection branch pipe 8. The width of the protruding rib 624 is less than the length thereof. The protruding rib 624 can reduce the contact area with the injection branch pipe 8, so that the injection branch pipe 8 is more easily flattened locally.

[0035] The panel 1 is provided with a copper sleeve 64, and the top rod head 621 of the front end of the top rod 62 penetrates the copper sleeve 64 and is slidingly matched with the copper sleeve 64.

[0036] The pull rope driving mechanism 3 comprises a telescopic rod 31 at the output end thereof, the telescopic rod 31 is connected to the other end of the pull rope 4, and the pull rope driving mechanism 3 drives the telescopic rod 31 to pull the pull rope 4. The pull rope driving mechanism 3 is mounted on the base of the high-pressure injector main machine, a plurality of pulleys 5 are rotatably connected to the high-pressure injector main machine, and the pull rope 4 passes through the pulleys 5 and is diverted by the pulleys 5.

[0037] In the embodiment, the front surface of the panel 1 is provided with a four-way pipe 2, three input ends of the four-way pipe 2 are communicated with the output ends of three injection branch pipes 8 respectively, the three injection branch pipes 8 correspond to three medicine bottles respectively. The four-way pipe 2 is further provided with one output end. The panel 1 is further provided with a pipe clamping member 11, the injection branch pipe 8 is arranged on the pipe clamping member 11. The front end of the top rod 62 is located between the pipe clamping member 11 and the input end of the four-way pipe 2. The upper end of the injection branch pipe 8 is an input end and is connected with a puncture device, the medicine bottle is inserted upside down on the puncture device.

[0038] As shown in Figure 5 When the telescopic rod 31 of the pull rope driving mechanism 3 is in the state of upward extension, the top rod 62 keeps the state of outward extension under the action of the reset spring 66 and flattens the local of the injection branch pipe 8, at this time, the injection branch pipe 8 is in the closed state, and the micro switch 7 is not triggered. As shown in Figure 6 When the telescopic rod 31 of the pull rope driving mechanism 3 moves downward and pulls the pull rope 4, at this time, the pull rope seat 63 moves downward and drives the swing arm 65 to rotate counterclockwise, the first swing arm 651 of the swing arm 65 pulls the top rod 62 backward, the top rod 62 overcomes the elastic force of the reset spring 66 and compresses the spring 66, at this time, the convex rib 624 of the top rod head 621 is away from the injection branch pipe 8, the injection branch pipe 8 is in the conducting state; the tail rod 623 of the top rod 62 pushes the conductive elastic sheet 71 backward, and promotes the conductive elastic sheet 71 to contact with the conductive contact 72, at this time, the micro switch 7 is triggered and sends the signal that the injection branch pipe 8 has been conducted to the controller.

[0039] When the top rod switch assembly 6 needs to be overhauled and replaced, the injection branch pipe 8 does not need to be disassembled, the liquid in the injection branch pipe can be avoided from flowing out, and the clean working environment is ensured.

[0040] The utility model has been described above in combination with the best embodiment, but the utility model is not limited to the above disclosed embodiments, and should cover various modifications, equivalent combinations according to the essence of the utility model.

Claims

1. A syringe branch pull cord switch device of a high pressure injector comprising a panel (1) provided on a main body of a high pressure injector, characterized in that, The front surface of the panel (1) is provided with an injection branch pipe (8) made of elastic material, and the panel (1) is further provided with a ejector rod switch assembly (6); the ejector rod switch assembly (6) comprises a swing arm rotating structure and an ejector rod (62) in sliding cooperation with the panel (1), and one end of the ejector rod (62) is opposite to the side wall of the injection branch pipe (8); the ejector rod (62) is linked with one end of a pull rope (4) through the swing arm rotating structure, and the other end of the pull rope (4) is connected with a pull rope driving mechanism (3).

2. A syringe yolk pull cord switch assembly for a high pressure syringe according to claim 1, wherein, The ejector rod switch assembly (6) further comprises a mounting seat (61) arranged on the back surface of the panel (1), the ejector rod (62) is slidingly connected to the mounting seat (61) and a return spring (66) is arranged between the ejector rod (62) and the mounting seat (61); the front end of the ejector rod (62) penetrates through the panel (1), and the mounting seat (61) is provided with a micro switch (7) corresponding to the rear end of the ejector rod (62).

3. A syringe yolk pull cord switch assembly for a high pressure syringe according to claim 2, wherein, The swing arm rotating structure comprises a swing arm (65) and a pull rope seat (63), the pull rope seat (63) is connected with one end of the pull rope (4), and the swing arm (65) comprises a first swing arm (651) and a second swing arm (652) arranged on both sides of the middle part of the swing arm (65); the middle part of the swing arm (65) is rotationally connected to the mounting seat (61) through a first rotating shaft (650); the ejector rod (62) is provided with a groove (625), and the free end of the first swing arm (651) extends into the groove (625); the second swing arm (652) is rotationally connected to the pull rope seat (63) through a second rotating shaft (631).

4. A syringe yolk pull cord switch assembly for a high pressure syringe according to claim 3, wherein, The ejector rod (62) comprises an ejector rod head (621), a transition section (622) and a tail rod (623) arranged in sequence along the axial direction, the groove (625) is arranged on the side wall of the transition section (622), and the return spring (66) is sleeved on the tail rod (623) and located between the mounting seat (61) and the end of the transition section (622); the ejector rod head (621) penetrates through the panel (1), and the rear end of the tail rod (623) corresponds to the micro switch (7).

5. A syringe yoke pull cord switch assembly for a high pressure syringe according to claim 4, wherein, The front end of the ejector rod head (621) is provided with a transversely arranged protruding rib (624), the protruding rib (624) is opposite to the side wall of the injection branch pipe (8), and the length of the protruding rib (624) is not less than the cross-sectional diameter of the injection branch pipe (8).

6. A syringe yolk pull ring switch device for a high pressure syringe according to claim 2, wherein, The panel (1) is provided with a copper sleeve (64), and the front end of the ejector rod (62) penetrates through the copper sleeve (64) and is in sliding cooperation with the copper sleeve (64).

7. A syringe yoke pull-cord switch device for a high pressure syringe according to claim 1, wherein, The pull rope driving mechanism (3) comprises a telescopic rod (31) at the output end thereof, and the telescopic rod (31) is connected with the other end of the pull rope (4); the pull rope driving mechanism (3) is mounted on the base of a high-pressure injector main machine, a plurality of pulleys (5) are rotationally connected to the high-pressure injector main machine, the pull rope (4) passes through the pulleys (5) and is turned through the pulleys (5).

8. A syringe yoke pull cord switch assembly for a high pressure syringe according to claim 1, wherein, The front surface of the panel (1) is provided with a four-way pipe (2), three input ends of the four-way pipe (2) are communicated with the output ends of three injection branch pipes (8) respectively, and the four-way pipe (2) is further provided with one output end; the panel (1) is further provided with a pipe clamping piece (11), and the injection branch pipes (8) are arranged on the pipe clamping piece (11); the front end of the ejector rod (62) is located between the pipe clamping piece (11) and the input end of the four-way pipe (2).

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