Preparation device of ultrasonic microbubble contrast agent for judging position of deep venous catheter

Abstract

The utility model discloses a preparation device of an ultrasonic microbubble contrast agent for judging the position of a deep venous catheter, which is used for preparing the microbubble contrast agent and comprises a foam maker, an injector and a connector, and the injector is connected with the foam maker through the connector; the foam maker comprises a stirring bin, a driver and stirring fan blades, the stirring bin is connected with the injector through a connector, the stirring fan blades are arranged in the stirring bin, and the driver is arranged outside the stirring bin and connected with the stirring fan blades. According to the utility model, the foam maker is used for automatically foaming, so that rapid, stable and uniform foaming is realized, the consistency of the effect of a microbubble contrast agent is ensured, the foaming efficiency is higher, the quality is more stable, and the imaging effect of the contrast agent is ensured; after foaming is conducted through the foam maker, injection of the microbubble contrast agent can be directly conducted, operation is simplified, consumed time is shortened, microbubble ablation is avoided, and the quality of injection operation of the microbubble contrast agent is effectively guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of microbubble contrast technology, specifically to a device for preparing an ultrasonic microbubble contrast agent for determining the location of a deep vein catheter. Background Technology

[0002] Central venous catheterization is now widely used in the treatment of critically ill patients, and accurately determining the position of the central venous catheter tip is crucial for improving treatment efficacy and reducing complications. Clinically, X-ray examination is the most commonly used method for determining catheter tip position, but this method is time-consuming, involves radiation exposure, and is expensive. Therefore, ultrasound microbubble contrast imaging technology is now being used to determine the position of the catheter tip after central venous catheterization. Existing microbubble contrast agents are mostly prepared manually, which presents several problems: firstly, different shaking forces from different operators lead to varying degrees of foaming; secondly, repeated syringe changes are time-consuming and can cause microbubble ablation; and thirdly, manual operation is prone to instability, easily resulting in solution splashing and posing a risk of contamination. This invention provides a device for preparing ultrasound microbubble contrast agents for determining the position of deep venous catheters, solving the above problems. Utility Model Content

[0003] This invention provides a device for preparing an ultrasound microbubble contrast agent for determining the location of a deep vein catheter. It can achieve automatic foaming, ensure consistent foaming degree, and reduce the complexity of injection operations.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is:

[0005] An apparatus for preparing an ultrasound microbubble contrast agent for determining the location of a deep vein catheter, comprising a foamer, a syringe, and a connector, wherein the syringe is connected to the foamer via the connector; the foamer comprises a mixing chamber, a driver, and a mixing blade, wherein the mixing chamber is connected to the syringe via the connector, the mixing blade is disposed within the mixing chamber, and the driver is disposed outside the mixing chamber and connected to the mixing blade.

[0006] Furthermore, the mixing chamber is disc-shaped, an air inlet pipe is provided at the top of the mixing chamber, scale lines are provided on the mixing chamber, and the connector is connected to the bottom of the mixing chamber.

[0007] Furthermore, the scale line is set horizontally, the volume above the scale line of the mixing chamber is 2ml, and the volume below the scale line is 18ml.

[0008] Furthermore, a valve is provided on the air intake pipe.

[0009] Furthermore, the connector is a T-junction, and the foamer and syringe are respectively connected to the first and second interfaces of the connector.

[0010] Furthermore, the connector is provided with valves, which are located on the first interface and the third interface.

[0011] Preferably, the actuator is located at the back of the mixing chamber.

[0012] Preferably, the mixing chamber is made of transparent PVC.

[0013] The beneficial effects of this utility model are as follows:

[0014] The automatic foaming process using a foaming device enables rapid, stable, and uniform foaming, ensuring consistent microbubble contrast agent effects. Furthermore, the foaming efficiency is higher, the quality is more stable, and the imaging effect of the contrast agent is guaranteed. After foaming, the microbubble contrast agent can be directly injected, simplifying the operation, reducing time, avoiding microbubble ablation, and effectively ensuring the quality of the microbubble contrast agent injection procedure. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the foamer structure of this utility model;

[0017] Figure 3 This is a schematic diagram showing the location of the driver in this utility model.

[0018] Reference numerals: 1. Foamer; 11. Mixing chamber; 111. Air inlet pipe; 12. Driver; 13. Mixing blade; 2. Injector; 3. Connector. Detailed Implementation

[0019] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0021] like Figure 1 , 2 As shown in Figure 3, an apparatus for preparing an ultrasound microbubble contrast agent for determining the location of a deep vein catheter is used to prepare the microbubble contrast agent. The apparatus includes a foamer 1, a syringe 2, and a connector 3. The syringe 2 is connected to the foamer 1 via the connector 3. The foamer 1 includes a stirring chamber 11, a driver 12, and a stirring blade 13. The stirring chamber 11 is connected to the syringe 2 via the connector 3. The stirring blade 13 is disposed in the stirring chamber 11. The driver 12 is disposed outside the stirring chamber 11 and is connected to the stirring blade 13.

[0022] The working principle of this invention is as follows: After connecting the syringe 2 to the foamer 1 via connector 3, 18ml of physiological saline is injected into the foamer 1, leaving 2ml of air inside. The foamer 1 is then activated, and the stirring blades 13 agitate the saline solution, generating microbubbles. This results in a liquid containing microbubbles, which is then injected into the body via syringe 2 for microbubble imaging. This operation effectively ensures the efficiency and quality of microbubble generation, achieving high foaming efficiency and stable quality, avoiding the significant errors associated with manual foaming.

[0023] like Figure 1 , 2 As shown in Figure 3, the mixing chamber 11 is further shaped as a disc. An air inlet pipe 111 is provided at the top of the mixing chamber 11 to form an air exhaust channel. The mixing chamber 11 is provided with a scale line to display the volume of injected saline solution. The scale line is horizontally set. The volume above the scale line of the mixing chamber 11 is 2 ml, and the volume below the scale line is 18 ml. The connector 3 is connected to the bottom of the mixing chamber 11. When saline solution is injected into the foamer 1 through the syringe 2, the saline solution is injected from the bottom, and the air in the foamer 1 is discharged from the air inlet pipe 111 at the top.

[0024] Furthermore, the air intake pipe 111 is provided with a valve for opening and closing the air intake pipe 111.

[0025] Furthermore, the connector 3 is a tee, including a first interface, a second interface, and a third interface. The foamer 1 and the syringe 2 are detachably connected to the first interface and the second interface of the connector 3, respectively. The connector 3 is equipped with valves, which are located on the first interface and the third interface.

[0026] Furthermore, the connector 3 is a three-way plug valve, which allows different circuits to be connected by rotating the plug to different positions.

[0027] Preferably, the driver 12 is located on the back of the mixing chamber 11, and the driver 12 is equipped with a start / stop button and a frequency adjustment button.

[0028] Preferably, the mixing chamber 11 is made of transparent PVC, and the transparent chamber body facilitates observation of the foaming process.

[0029] The specific operation method of this utility model is as follows:

[0030] First, fill the syringe with 18ml of physiological saline. Then connect the syringe 2 to the second port of the connector 3, open the valve on the first port and the air inlet pipe 111, close the valve on the third port, keep the stirring chamber 11 in a vertical position, and adjust it so that the scale line is in a horizontal position. Inject 18ml of physiological saline into the stirring chamber 11.

[0031] Second, close the valves on the first interface and the air inlet pipe 111, start the driver 12, and use the stirring fan blade 13 to foam the physiological saline. After visually confirming that the foaming meets the imaging requirements, turn off the driver 12.

[0032] Third, keep the mixing chamber 11 in a vertical position, open the valves on the first interface and the air inlet pipe 111, draw 5ml of foamed contrast agent through the syringe 2, close the valves on the first interface and the air inlet pipe 111, remove the syringe 2, connect the syringe 2 to the central venous catheter, and quickly push the contrast agent into the human body.

[0033] Fourth, observe with ultrasound. If microbubbles are observed in the heart within 2 seconds after the contrast agent is injected, it indicates that the tip of the central venous catheter is located in the superior vena cava. If microbubbles are not observed within 2 seconds after the contrast agent is injected, it indicates that the catheter is in the wrong position.

[0034] Furthermore, when administering contrast agent injection, the central venous catheter can be directly connected to the third interface. After drawing 5ml of foamed contrast agent with syringe 2, the valves on the first interface and the air inlet tube 111 are closed, and the valve on the third interface is opened. The contrast agent can be directly injected without removing syringe 2, making the operation more convenient.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A device for preparing an ultrasound microbubble contrast agent for determining the location of a deep vein catheter, characterized in that: The device includes a foamer (1), a syringe (2), and a connector (3). The syringe (2) is connected to the foamer (1) via the connector (3). The foamer (1) includes a mixing chamber (11), a driver (12), and a stirring blade (13). The mixing chamber (11) is connected to the syringe (2) via the connector (3). The stirring blade (13) is located in the mixing chamber (11). The driver (12) is located outside the mixing chamber (11) and is connected to the stirring blade (13).

2. The apparatus for preparing an ultrasound microbubble contrast agent for determining the location of a deep vein catheter according to claim 1, characterized in that: The mixing chamber (11) is disc-shaped, and an air inlet pipe (111) is provided on the top of the mixing chamber (11). The mixing chamber (11) is provided with scale lines, and the connector (3) is connected to the bottom of the mixing chamber (11).

3. The apparatus for preparing an ultrasound microbubble contrast agent for determining the location of a deep vein catheter according to claim 2, characterized in that: The scale line is set horizontally, and the volume above the scale line of the mixing chamber (11) is 2ml, and the volume below the scale line is 18ml.

4. The apparatus for preparing an ultrasound microbubble contrast agent for determining the location of a deep vein catheter according to claim 2, characterized in that: A valve is provided on the air intake pipe (111).

5. The apparatus for preparing an ultrasound microbubble contrast agent for determining the position of a deep vein catheter according to claim 1, characterized in that: The connector (3) is a three-way connector, and the foamer (1) and the syringe (2) are respectively connected to the first and second interfaces of the connector (3).

6. The apparatus for preparing an ultrasound microbubble contrast agent for determining the position of a deep vein catheter according to claim 5, characterized in that: The connector (3) is provided with a valve, which is located on the first interface and the third interface.

7. The apparatus for preparing an ultrasound microbubble contrast agent for determining the location of a deep vein catheter according to claim 1, characterized in that: The actuator (12) is located at the back of the mixing chamber (11).

8. The apparatus for preparing an ultrasound microbubble contrast agent for determining the location of a deep vein catheter according to claim 1, characterized in that: The mixing chamber (11) is made of transparent PVC.

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