High-pressure injector capable of automatically buckling pipe

Abstract

The invention discloses a high-pressure injector with an automatic tube buckling function, relates to medical instruments, and aims to solve the problem that in the prior art, it is strenuous to disassemble and assemble an infusion tube. The two inner side walls of the pipe groove are each in an inwards-concave arc shape. A push arm is arranged at the position, before the pipe groove passes through the wheel pressing mechanism, of the pipe groove, the cross section of the push arm is in an arc shape, the arc shape of the push arm is matched with the arc radius of the first inner side wall of the pipe groove, and the push arm is opposite to the second inner side wall of the pipe groove. The inner side arc surface of the push arm is used for being matched with the second inner side wall of the tube groove to clamp the infusion tube; a push rod extending out of the second inner side wall of the pipe groove is arranged on the outer side arc surface of the push arm; the end, away from the push arm, of the push rod is connected with the power output end of a motor. The device has the advantages that the infusion tube can be clamped or released by utilizing the left-right sliding of the electric push arm in the tube groove. And medical care does not need to manually fasten or pull away, use by departments with very tense working rhythm is facilitated, and the operation is very friendly to medical care.

Description

Technical Field

[0001] The present invention relates to medical devices, and particularly to a high-pressure syringe with automatic tube buckling. Background Art

[0002] Wheel-pressure type high-pressure syringes are widely used in the pre-operation of medical imaging, mainly using wheel pressure to press the imaging agent into the human artery under high pressure. The general structure is as Figure 1 and Figure 2 shown. A tube groove 11 is provided on the panel 10 for placing the infusion tube 20, and the infusion tube 20 needs to be fixed in the tube groove 11. In the prior art, a snap-type fixation as shown in Figure 2 is adopted. A fastener 12 is provided at a fixed position in the tube groove 11, and a clip 21 fixed on the outer surface of the tube section is provided at a corresponding position on the infusion tube 20. The clip 21 and the fastener 12 are tightly snapped together to fix the relative positions of the tube groove 11 and the infusion tube 20.

[0003] This structure has two common problems: on the one hand, since the clip 21 is fixed on the outer surface of the infusion tube 20, the relative position of the infusion tube 20 in the tube groove 11 cannot be adjusted. However, the infusion tubes 20 produced in each batch are not of standard distance, so in use, the tube sections at some positions are relatively long, resulting in a large degree of extrusion and bending in the tube groove 11, which is not conducive to the smoothness of the pipeline. On the other hand, the snap fit between the clip 21 and the fastener 12 is a very tight interference fit. When medical staff snap in the clip 21 or pull out the clip 21, a relatively large amount of force is required, which is not user-friendly for medical operations. Summary of the Invention

[0004] The purpose of the present invention is to provide a high-pressure syringe with automatic tube buckling to solve the problems existing in the above prior art.

[0005] In the high-pressure syringe with automatic tube buckling of the present invention, a panel is provided on the main body, and a tube groove is provided on the panel; an infusion tube is also provided for connecting between the human body and the infusion bottle; the infusion tube is placed in the tube groove, and the main body pressurizes the liquid in the infusion tube through a wheel pressure mechanism;

[0006] Both inner side walls of the tube groove are concave arcs; a push arm is provided at a position of the tube groove before passing through the wheel pressure mechanism. The cross-section of the push arm is an arc, and the arc of the push arm is adapted to the arc radius of the first inner side wall of the tube groove and is opposite to the second inner side wall of the tube groove; the inner arc surface of the push arm is used to cooperate with the second inner side wall of the tube groove to clamp the infusion tube; a push rod extends out of the second inner side wall of the tube groove on the outer arc surface of the push arm; the end of the push rod far from the push arm is connected to the power output end of a motor.

[0007] There is an elastic film, one end of which is fixedly connected to the upper end of the first inner wall of the tube groove, and the other end extends freely towards the second inner wall of the tube groove; the elastic film is used to prevent the infusion tube from detaching from the tube groove.

[0008] In the high-pressure syringe with automatic tube buckling of the present invention, the advantage is that by using the electric push arm to slide left and right in the tube groove, the infusion tube can be clamped or released. It is not necessary for medical staff to manually fasten or pull out, which is beneficial for use in departments with a very tight work rhythm, and the operation is very friendly to medical staff. Brief Description of the Drawings

[0009] Figure 1 It is a schematic structural diagram of a high-pressure syringe in the prior art.

[0010] Figure 2 is Figure 1 The partial enlarged view at K in

[0011] Figure 3 It is a schematic structural diagram of the tube groove of a high-pressure syringe described in the present invention.

[0012] Figure 4 is Figure 3 The cross-sectional view in the A-A direction in

[0013] Figure 5 It is a schematic diagram of the working process of automatic tube buckling of the high-pressure syringe described in the present invention.

[0014] Reference Signs:

[0015] 10 - Panel, 11 - Tube Groove, 12 - Fastener;

[0016] 20 - Infusion Tube, 21 - Clip;

[0017] 31 - Push Arm, 32 - Elastic Film, 33 - Push Rod. Detailed Description of the Invention

[0018] As Figure 3 and Figure 4 shown, on the main body of the high-pressure syringe with automatic tube buckling described in the present invention, there is a panel 10, and a tube groove 11 is provided on the panel 10. There is also an infusion tube 20 for connecting between the human body and the infusion bottle. The infusion tube 20 is placed in the tube groove 11, and the main body pressurizes the liquid in the infusion tube 20 through a wheel pressure mechanism.

[0019] Both inner side walls of the pipe groove 11 are concave arcs. A push arm 31 is provided at a position of the pipe groove 11 before passing through the wheel pressing mechanism. The cross section of the push arm 31 is arc-shaped, and the arc of the push arm 31 is adapted to the arc radius of the first inner side wall of the pipe groove 11 and is opposite to the second inner side wall of the pipe groove 11. The inner arc surface of the push arm 31 is used to cooperate with the second inner side wall of the pipe groove 11 to clamp the infusion tube 20. A push rod 33 extends out of the second inner side wall of the pipe groove 11 on the outer arc surface of the push arm 31. The end of the push rod 33 far from the push arm 31 is connected to the power output end of a motor.

[0020] An elastic film 32 is provided. One end of the elastic film 32 is fixedly connected to the upper end of the first inner side wall of the pipe groove 11, and the other end extends freely towards the second inner side wall of the pipe groove 11. The elastic film 32 is used to prevent the infusion tube 20 from detaching from the pipe groove 11.

[0021] In the present invention, the working principle of the high-pressure syringe main body with automatic tube clamping is as Figure 5 shown: When tube clamping is required, the medical staff presses down the free end of the elastic film 32 of the infusion tube 20, so that the infusion tube 20 enters the pipe groove 11 and moves towards the push arm 31. At this time, after the free end of the elastic film 32 is released from pressing the infusion tube 20, it automatically rebounds, thereby preventing the infusion tube 20 from automatically detaching. The medical staff can perform other operations on the main body, such as setting an injection program or inputting a tube clamping instruction, etc. After receiving the instruction, the main body drives the motor, and uses the push rod 33 to push the push arm 31 from the second inner side wall towards the first inner side wall, so as to cooperate with the first inner side wall to clamp the infusion tube 20 tightly. During the pushing process, the free end of the elastic film 32 will naturally fall down due to its own gravity, and thus automatically insert into the gap between the infusion tube 20 and the push arm 31. On the contrary, when it is necessary to release the infusion tube 20, the main body drives the motor to pull the push arm 31 back from the first inner side wall to the second inner side wall. The medical staff can simply draw out the infusion tube 20 from the pipe groove 11 without effort.

[0022] For those skilled in the art, according to the technical solutions and concepts described above, various corresponding changes and deformations can be made, and all of these changes and deformations should fall within the protection scope of the claims of the present invention.

Claims

1. A high-pressure syringe with automatic tube clamping. A panel (10) is provided on the main body, and a tube groove (11) is provided on the panel (10); an infusion tube (20) is also provided for connecting between the human body and the infusion bottle; the infusion tube (20) is placed in the tube groove (11), and the main body pressurizes the liquid in the infusion tube (20) through a wheel pressing mechanism. It is characterized in that both inner side walls of the tube groove (11) are concave arcs; a push arm (31) is provided at a position of the tube groove (11) before passing through the wheel pressing mechanism. The cross-section of the push arm (31) is arc-shaped, and the arc of the push arm (31) is adapted to the arc radius of the first inner side wall of the tube groove (11) and is opposite to the second inner side wall of the tube groove (11); the inner arc surface of the push arm (31) is used to cooperate with the second inner side wall of the tube groove (11) to clamp the infusion tube (20); a push rod (33) is provided on the outer arc surface of the push arm (31) and extends out of the second inner side wall of the tube groove (11); the end of the push rod (33) far from the push arm (31) is connected to the power output end of a motor.

2. The high-pressure syringe with automatic tube buckling according to claim 1, characterized in that, An elastic film (32) is provided. One end of the elastic film (32) is fixedly connected to the upper end of the first inner side wall of the tube groove (11), and the other end extends freely towards the second inner side wall of the tube groove (11); the elastic film (32) is used to prevent the infusion tube (20) from detaching from the tube groove (11).

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