Automatic configuration and injection device for contrast agent diluted in fixed proportion

Abstract

The utility model is suitable for the technical field of contrast agent preparation, and provides an automatic contrast agent preparation and injection device capable of diluting in a fixed proportion, which comprises a contrast agent storage tank, a normal saline storage tank, a preparation tank and a liquid injection pipe, the contrast agent storage tank and the normal saline storage tank are connected with the preparation tank through a first liquid supply pipeline and a second liquid supply pipeline correspondingly, peristaltic pumps and proportional valves are installed on the first liquid supply pipeline and the second liquid supply pipeline correspondingly, and a stirring mechanism is installed in the contrast agent storage tank; the bottom of the contrast agent storage tank is connected with the liquid injection pipe through a connecting pipe, a pushing and injecting mechanism is installed in the liquid injection pipe, contrast agent dilution in proportion can be achieved, the pushing and injecting speed and the pushing and injecting amount can be accurately controlled, manual intervention is not needed in the process, personal errors and inconsistency are reduced, the image quality and reliability are improved, and the working efficiency is improved. And a stable ultrasonic contrast effect is ensured, and medical professionals can be helped to more accurately diagnose the internal structure and lesion of a patient.

Description

Technical Field

[0001] The utility model belongs to, and particularly relates to, a device for automatically configuring and injecting a contrast medium diluted in a fixed ratio. Background Art

[0002] Ultrasound contrast is widely used in medical diagnosis to enhance ultrasound images and help doctors identify and locate different tissues and vascular structures. Usually, ultrasound contrast agents need to be injected into the patient's body to achieve image enhancement. In this process, the dilution ratio and flow rate are crucial to obtain accurate images.

[0003] Currently, the dilution and bolus of ultrasound contrast agents are usually performed manually, relying on the operator's skill and judgment, which can lead to inconsistencies and errors. Therefore, an automatic device is needed to configure the dilution ratio and control the flow rate to ensure that each injection is accurate and consistent. Utility Model Content

[0004] The purpose of the embodiment of the utility model is to provide a device for automatically disposing and injecting contrast agents with fixed-ratio dilution, aiming to solve the technical problems existing in the prior art mentioned in the background technology.

[0005] The utility model is implemented as follows: an automatic configuration and push injection device for a contrast agent diluted in a fixed ratio, the device comprising a contrast agent storage tank, a saline storage tank, a preparation tank and an injection tube, the contrast agent storage tank and the saline storage tank are connected to the preparation tank via a first liquid supply pipeline and a second liquid supply pipeline, respectively, a peristaltic pump and a proportional valve are installed on the first liquid supply pipeline and the second liquid supply pipeline, a stirring mechanism is installed in the contrast agent storage tank, the bottom of the contrast agent storage tank is connected to the injection tube via a connecting tube, an injection mechanism is installed in the injection tube, and a one-way solenoid valve is installed on the connecting tube.

[0006] Preferably, the stirring mechanism comprises a stirring motor and a stirring rod connected to an output end of the stirring motor, and a stirring blade is installed on the stirring rod.

[0007] More preferably, the stirring mechanism further comprises a circulation blade, wherein the circulation blade is fixed at the bottom position of the stirring rod, and the circulation blade is used to realize the circulation flow of the liquid phase in the vertical direction.

[0008] More preferably, the push injection mechanism includes a push injection motor installed on the injection tube, the output end of the push injection motor is connected to a screw rod, the end of the screw rod is fixedly connected to a push injection piston, and the push injection piston is installed in the injection tube.

[0009] More preferably, the preparation tank is also equipped with a radar level meter for detecting the liquid level in the preparation tank.

[0010] More preferably, it further comprises a control panel installed on the preparation tank.

[0011] The beneficial effects of the utility model are: it can achieve proportional dilution of contrast agent and accurately control the injection speed and injection volume, and the process does not require human intervention, reducing human errors and inconsistencies, improving image quality and reliability, ensuring a stable ultrasound contrast effect, and helping medical professionals to more accurately diagnose the patient's internal structure and lesions. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of an automatic configuration and injection device for a contrast medium diluted in a fixed ratio provided by an embodiment of the utility model;

[0013] Figure 2 A schematic diagram of the internal structure of a device for automatically disposing and injecting contrast agents with a fixed-ratio dilution provided in an embodiment of the utility model.

[0014] In the figure: 1-contrast agent storage tank, 2-physiological saline storage tank, 3-stirring motor, 4-radar liquid level meter, 5-proportional valve, 6-peristaltic pump, 7-first liquid supply pipeline, 8-second liquid supply pipeline, 9-preparation tank, 10-stirring blade, 11-circulation blade, 12-stirring rod, 13-connecting pipe, 14-push injection piston, 15-injection pipe, 16-screw, 17-push injection motor. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0016] It can be understood that the terms "first", "second", etc. used in the present application can be used in this article to describe various elements, but unless otherwise specified, these elements are not limited by these terms. These terms are only used to distinguish the first element from another element.

[0017] like Figure 1 and 2As shown, in one embodiment, a device for automatically configuring and injecting a contrast agent with a fixed-ratio dilution is provided, the device comprising a contrast agent storage tank 1, a saline storage tank 2, a preparation tank 9 and an injection tube 15, the contrast agent storage tank 1 and the saline storage tank 2 are connected to the preparation tank 9 via a first liquid supply pipeline 8 and a second liquid supply pipeline 8, respectively, a peristaltic pump 6 and a proportional valve 5 are installed on the first liquid supply pipeline 8 and the second liquid supply pipeline 8, a stirring mechanism is installed in the contrast agent storage tank 1, the bottom of the contrast agent storage tank 1 is connected to the injection tube 15 via a connecting tube 13, an injection mechanism is installed in the injection tube 15, and a one-way solenoid valve is installed on the connecting tube 13.

[0018] In actual application of the embodiment of the utility model, the peristaltic pump 6 and the proportional valve 5 are turned on, and the peristaltic pump 6 inputs the contrast agent and the physiological saline into the preparation tank 9 through the first liquid supply pipeline 8 and the second liquid supply pipeline 8 according to a preset ratio. Then, the peristaltic pump 6 and the proportional valve 5 are closed, and the stirring mechanism is started to achieve sufficient mixing of the contrast agent and the physiological saline. Then, the one-way solenoid valve is opened, and the diluted contrast agent enters the injection tube 15 for storage, and then is injected through the push injection mechanism.

[0019] The embodiment of the utility model can realize proportional dilution and injection of contrast agent, and the process does not require human intervention, thereby reducing human errors and inconsistencies, improving image quality and reliability, ensuring a stable ultrasound contrast effect, and helping medical professionals to more accurately diagnose the patient's internal structure and lesions.

[0020] like Figure 2 As shown, as a preferred embodiment of the utility model, the stirring mechanism includes a stirring motor 3 and a stirring rod 12 connected to the output end of the stirring motor 3, and the stirring rod 12 is equipped with a stirring blade 3.

[0021] More preferably, the stirring mechanism further comprises a circulation blade 11, wherein the circulation blade 11 is fixed at the bottom position of the stirring rod 12, and the circulation blade 11 is used to realize the circulation flow of the liquid phase in the vertical direction.

[0022] In the embodiment of the utility model, the structure of the circulating blade 11 is similar to that of a feeding auger. It is located at the lower position and can transport the dilution liquid at the variable diameter position at the bottom of the preparation tank 9 upward to prevent the dilution liquid at this position from being in a dead corner of stirring and unable to achieve sufficient stirring.

[0023] like Figure 2 As shown, as another preferred embodiment of the utility model, the push injection mechanism includes a push injection motor 17 installed on the injection tube 15, the output end of the push injection motor 17 is connected to a screw rod 16, the end of the screw rod 16 is fixedly connected to the push injection piston 14, and the push injection piston 14 is installed in the injection tube 15.

[0024] In the embodiment of the utility model, the combination of the push motor 17 and the screw 16 is actually the same as the principle of the existing screw lift, that is, the push motor 17 outputs power to drive the push piston 14 to move in the axial direction of the injection tube 15, thereby realizing automatic push injection. In addition, an encoder can be installed on the output end of the push motor 17 to realize accurate control of the rotation speed, number of revolutions, etc., and then accurately control the push speed and push volume.

[0025] like Figure 1 and 2 As shown, as another preferred embodiment of the utility model, a radar level meter 4 is also installed on the preparation tank 9 to detect the liquid level in the preparation tank 9. More preferably, a control panel installed on the preparation tank 9 is also included.

[0026] In the embodiment of the utility model, the radar level meter 4 is used to detect the liquid level in the preparation tank 9 to avoid the problem of idling of the stirring mechanism. The control panel can be connected to the peristaltic pump 6, the proportional valve 5, the one-way solenoid valve, the stirring motor 3, etc. to realize the control thereof, as well as the preset control of the opening and closing size of the proportional valve 5.

[0027] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0028] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for automatically dispensing and injecting a contrast medium with a fixed dilution ratio, characterized in that: The device comprises a contrast medium storage tank (1), a physiological saline storage tank (2), a preparation tank (9) and an injection pipe (15); the contrast medium storage tank (1) and the physiological saline storage tank (2) are connected to the preparation tank (9) via a first liquid supply pipeline and a second liquid supply pipeline (8) respectively; a peristaltic pump (6) and a proportional valve (5) are installed on the first liquid supply pipeline and the second liquid supply pipeline (8); a stirring mechanism is installed in the contrast medium storage tank (1); the bottom of the contrast medium storage tank (1) is connected to the injection pipe (15) via a connecting pipe (13); an injection mechanism is installed in the injection pipe (15); and a one-way electromagnetic valve is installed on the connecting pipe (13).

2. The device for automatically dispensing and injecting a contrast medium with a fixed dilution ratio according to claim 1, characterized in that: The stirring mechanism comprises a stirring motor (3) and a stirring rod (12) connected to the output end of the stirring motor (3), and a stirring blade is installed on the stirring rod (12).

3. The device for automatically dispensing and injecting a contrast medium with a fixed dilution ratio according to claim 2, characterized in that: The stirring mechanism further comprises a circulation blade (11), wherein the circulation blade (11) is fixed at the bottom of the stirring rod (12), and the circulation blade (11) is used to realize the circulation flow of the liquid phase in the vertical direction.

4. The device for automatically dispensing and injecting a contrast medium with a fixed dilution ratio according to claim 1, characterized in that: The push injection mechanism comprises a push injection motor (17) mounted on a liquid injection tube (15); the output end of the push injection motor (17) is connected to a screw rod (16); the end of the screw rod (16) is fixedly connected to a push injection piston (14); and the push injection piston (14) is mounted in the liquid injection tube (15).

5. The device for automatically dispensing and injecting a contrast medium with a fixed dilution ratio according to claim 1, characterized in that: The preparation tank (9) is also provided with a radar level meter (4) for detecting the liquid level in the preparation tank (9).

6. The device for automatically dispensing and injecting a contrast medium with a fixed dilution ratio according to claim 1, characterized in that: Also included is a control panel mounted on the preparation tank (9).

Images