Instantaneous segmented detection device for right heart acoustic contrast agent

Abstract

The utility model belongs to the technical field of contrast agent detection, and discloses a right heart acoustic contrast agent instant segmentation detection device which comprises at least two one-way valves sequentially installed in the length direction of an injector cavity, an inlet of each one-way valve is communicated with the interior of the injector cavity, and an outlet of each one-way valve is connected with a contrast agent detection pipeline. The contrast agent detection pipeline is provided with a switch valve and a pressure switch valve which are sequentially distributed along the flowing direction of the contrast agent. According to the utility model, microbubbles at the position of the valve can be instantly obtained, instant segmented detection is realized, operations such as operation of a three-way pipeline and the like which additionally increase time are not needed, and the device is simple and practical.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of contrast agent detection, and particularly relates to a right heart acoustic contrast agent instantaneous segmented detection device. BACKGROUND

[0002] Hand physiological saline or glucose air microbubbles are the commonly used right heart ultrasound contrast agents at home and abroad, and the operation method is that two syringes are respectively filled with physiological saline and air, generally in a proportion of 9:1 by volume, and after being connected through a three-way pipe, the two syringes are rapidly reciprocated by two operators or one operator with both hands, so that microbubbles can be rapidly generated. Since the particle size is relatively large, the microbubbles cannot pass through the pulmonary circulation, and thus after being injected through the systemic venous circulation, the microbubbles can exist and be limited in the right heart system, are easily destroyed in the cardiovascular system due to high-speed impact and complex cardiovascular passages, have a short existence time, and cannot cause arterial embolism, and are widely used in right heart ultrasound contrast.

[0003] When the quality control research or influencing factors of the contrast agent (microbubbles) are carried out, the physical properties and ultrasonic imaging effects of the microbubbles need to be detected sometimes.

[0004] The conventional detection method (such as two prior arts with publication numbers CN112316763B and CN217310358U): after preparation, all the contrast agents (microbubbles) are pushed into one syringe, and then the three-way pipe is operated to inject the microbubbles into the corresponding detection position, such as a counter or ultrasonic imaging. This detection method has two characteristics: one is that the time is relatively long; and the other is that the microbubbles at different positions are mixed together, which causes the following problems of the conventional detection method:

[0005] 1. The microbubbles have poor stability and are easily broken or fused, and after preparation, the physical properties of the microbubbles change quickly with the extension of time, such as the particle size of the microbubbles becomes large, the number of the microbubbles becomes small, and the concentration of the microbubbles decreases, which further affects the ultrasonic imaging effect, and thus the detection needs to be completed quickly;

[0006] 2. When the influencing factors of the contrast agent are researched, the instantaneous changes of the microbubbles under different vibration frequencies and times cannot be reflected in time;

[0007] 3. The microbubbles close to the connection between the two syringes have a small particle size and a high number concentration in theory, and the microbubbles far from the connection have a large particle size and a low number concentration, that is, the physical properties of the microbubbles at different positions are different, and in the process of researching the influencing factors of the contrast agent, the influences of different factors at different positions, such as the near end and the far end of the jet, cannot be distinguished, and thus the microbubbles need to be detected segmentally.

[0008] In summary, a device needs to be designed to realize the rapid instantaneous detection of the microbubbles during the preparation process or after the preparation is completed, and to realize the segmented instantaneous detection of the microbubbles at different positions. UTILITY MODEL CONTENTS

[0009] The utility model discloses a right heart acoustic contrast medium instantaneous segmented detection device, which is used to solve the above-mentioned problems existing in the prior art.

[0010] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0011] A right heart acoustic contrast medium instantaneous segmented detection device, comprising at least two one-way valves installed in sequence along the length direction of the syringe cavity, the inlet of each one-way valve is communicated with the inside of the syringe cavity, and the outlet of each one-way valve is connected with a contrast medium detection pipeline, wherein the contrast medium detection pipeline is provided with a switch valve and a pressure switch valve distributed in sequence along the flow direction of the contrast medium.

[0012] As a preferred technical scheme in the utility model, the switch valve is a manual switch valve for conveniently controlling the on-off state of the contrast medium detection pipeline.

[0013] As a preferred technical scheme in the utility model, the switch valve is a pneumatic switch valve or an electric switch valve for conveniently controlling the on-off state of the contrast medium detection pipeline.

[0014] As a preferred technical scheme in the utility model, the one-way valve is provided with three one-way valves installed at the distal end, the middle part and the proximal end of the syringe cavity.

[0015] Advantageous effects: the utility model installs the one-way valve at different positions of the syringe cavity, and when the detection equipment connected and communicated through the one-way valve needs to detect the contrast medium, the power source for the contrast medium to pass through the one-way valve and enter the contrast medium detection pipeline is the pressure in the cavity generated by the push syringe in the process of preparing the contrast medium, when the switch valve is in the closed state, the contrast medium detection pipeline cannot flow, when the switch valve is in the open state, the contrast medium in the syringe cavity enters the contrast medium detection pipeline, and when the pressure in the contrast medium detection pipeline is greater than the preset value of the pressure switch valve, the pressure switch valve is opened, the contrast medium enters the counting instrument and / or the ultrasonic imaging detection equipment along the contrast medium detection pipeline, the detection equipment instantaneously obtains the micro-bubbles at the position of the valve, realizes the instantaneous segmented detection, does not need to operate the additional time operation of the three-way pipeline, and is simple and practical. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structural schematic diagram of the utility model.

[0017] In the drawing: 1-syringe cavity;2-one-way valve;3-contrast medium detection pipeline;4-switch valve;5-pressure switch valve. DETAILED DESCRIPTION

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.

[0019] Example:

[0020] like Figure 1 As shown, this embodiment provides a right ventricular acoustic contrast agent instantaneous segmented detection device, including at least two one-way valves 2 installed sequentially along the length of the syringe cavity 1. The inlet of each one-way valve 2 is connected to the inside of the syringe cavity 1, and the outlet of each one-way valve 2 is connected to a contrast agent detection pipeline 3. When it is necessary to detect the contrast agent, the power for the contrast agent to pass through the one-way valve 2 and enter the contrast agent detection pipeline 3 comes from the pressure generated in the cavity of the syringe during the preparation of the contrast agent. The contrast agent detection pipeline 3 is equipped with a switching valve 4 and a pressure valve 4 sequentially distributed along the contrast agent flow direction. When the switch valve 4 is closed, the contrast agent detection pipeline 3 cannot flow. When the switch valve 4 is open, the contrast agent in the syringe cavity 1 enters the contrast agent detection pipeline 3. When the pressure in the contrast agent detection pipeline 3 is greater than the preset value of the pressure switch valve 5, the pressure switch valve 5 opens, and the contrast agent enters the counter and / or ultrasound imaging detection equipment along the contrast agent detection pipeline 3. The detection equipment instantly obtains the microbubbles at the valve location, realizing instantaneous segmented detection. There is no need to operate the three-way pipeline or other operations that add extra time, making it simple and practical.

[0021] This invention installs one-way valves 2 at different positions in the syringe cavity 1. These one-way valves 2 connect to the detection equipment. When contrast agent needs to be detected, the power for the contrast agent to pass through the one-way valve 2 into the contrast agent detection channel 3 comes from the pressure generated in the chamber during the contrast agent preparation process. When the switch valve 4 is closed, the contrast agent detection channel 3 cannot flow. When the switch valve 4 is open, the contrast agent in the syringe cavity 1 enters the contrast agent detection channel 3. When the pressure in the contrast agent detection channel 3 exceeds the preset value of the pressure switch valve 5, the pressure switch valve 5 opens, and the contrast agent enters the counter and / or ultrasound imaging detection equipment along the contrast agent detection channel 3. The detection equipment instantly obtains the microbubbles at the valve location, achieving instantaneous segmented detection. This eliminates the need for additional time-consuming operations such as manipulating three-way tubing, making it simple and practical.

[0022] As a preferred embodiment in the embodiment, it needs to be further explained that the switch valve 4 is a manual switch valve for conveniently controlling the on-off state of the contrast agent detection pipeline 3.

[0023] As a preferred embodiment in the embodiment, it needs to be further explained that the switch valve 4 is a pneumatic switch valve or an electric switch valve for conveniently controlling the on-off state of the contrast agent detection pipeline 3, and for synchronously controlling all the switch valves 4 by pneumatic or electric means.

[0024] As a preferred embodiment in the embodiment, it needs to be further explained that the three one-way valves 2 are respectively installed at the distal end, the middle part and the proximal end of the syringe cavity 1, for synchronously detecting the contrast agent at the distal end, the middle part and the proximal end of the syringe cavity 1.

[0025] Finally, it should be pointed out that the above only refers to the preferred embodiments of the utility model, and is not used to limit the protection scope of the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A device for detecting transient segment of right heart acoustic contrast, characterized in that, The injection device comprises at least two one-way valves (2) arranged along the length direction of the injection cavity (1) in sequence, the inlet of each one-way valve (2) is communicated with the inside of the injection cavity (1), and the outlet of each one-way valve (2) is connected with a contrast medium detection pipeline (3), and the contrast medium detection pipeline (3) is provided with a switch valve (4) and a pressure switch valve (5) arranged along the flow direction of the contrast medium in sequence.

2. A device for transient segment detection of a right heart acoustic contrast agent according to claim 1, characterized in that, The switch valve (4) is a manual switch valve for controlling the on-off state of the contrast medium detection pipeline (3).

3. The device for transient segment detection of a right heart acoustic contrast agent according to claim 1, characterized in that, The switch valve (4) is a pneumatic switch valve or an electric switch valve for controlling the on-off state of the contrast medium detection pipeline (3).

4. A device for transient segment detection of a right heart echocardiography contrast agent according to any one of claims 1-3, characterized in that, The one-way valves (2) are provided in three, and the three one-way valves (2) are arranged at the distal end, the middle and the proximal end of the injection cavity (1) respectively.

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