Interventional operation fluid pipeline system

Abstract

The interventional operation fluid pipeline system comprises a four-way connector and a Y valve, a first connector of the four-way connector is inserted into a main pipe of the Y valve through a suction catheter, and one end of the main pipe of the Y valve communicates with a guide catheter; the negative pressure suction device is communicated with the second connector of the four-way connector through a negative pressure suction pipeline, and a first valve body device is arranged on the negative pressure suction pipeline; the contrast agent injection device is communicated with a branch pipe of the Y valve and a third connector of the four-way connector through a first valve body assembly; and the heparin water injection device is respectively communicated with a branch pipe of the Y valve and a fourth interface of the four-way connector through a second valve body assembly. According to the interventional operation fluid pipeline system, all different fluids needing to be used in the operation process can be integrated into the interventional operation fluid pipeline system, the corresponding fluids and negative pressure act on the suction catheter or the guide catheter through the switching action of the corresponding valve bodies, operation of doctors is facilitated, and the working intensity of the doctors is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and more specifically, to an interventional fluid pipeline system. Background Art

[0002] With the development of medical technology, vascular interventional therapy has become an effective means of treating various vascular diseases. Interventional therapy is an emerging treatment method between surgical and internal medicine treatment. Intravascular intervention is a less invasive treatment method that creates a tiny channel in the blood vessels and skin without exposing the lesion through surgery, and treats the lesion locally under the guidance of imaging equipment.

[0003] Currently, during interventional treatment in clinical practice, a guidewire is usually used to assist in the insertion of a catheter into the patient's diseased area. During the placement of the guidewire catheter, the patient needs to undergo a variety of different medications and injection procedures to achieve the main functions of angiography and prevent blood clotting and aspirate thrombus.

[0004] In traditional vascular interventional surgery, contrast agents, heparin water, and negative pressure suction all require independent pipeline systems. The pipeline systems are relatively complex and require doctors to manually switch the connection between the corresponding pipelines and the Y-valve, which increases the workload of doctors.

[0005] Therefore, how to simplify the pipeline system and reduce the workload of doctors is an urgent problem to be solved by technical personnel in this field. Summary of the invention

[0006] In view of this, the purpose of the present application is to provide an interventional fluid piping system to simplify the piping system and reduce the workload of doctors.

[0007] To achieve the above objectives, this application provides the following technical solutions:

[0008] The first aspect of the present application provides an interventional fluid pipeline system, comprising:

[0009] A four-way connector and a Y-valve, wherein a first interface of the four-way connector is inserted into a main pipe of the Y-valve through a suction catheter, and one end of the main pipe of the Y-valve is connected to a guide catheter;

[0010] A negative pressure suction device, connected to the second interface of the four-way joint through a negative pressure suction pipeline, and a first valve body device is provided on the negative pressure suction pipeline;

[0011] A contrast agent injection device, which is connected to the branch pipe of the Y valve and the third interface of the four-way connector through the first valve body assembly;

[0012] The heparin water injection device is connected to the branch pipe of the Y valve and the fourth interface of the four-way connector through the second valve body assembly.

[0013] In a possible implementation, the first valve body assembly includes a second valve body device and a third valve body device, and the second valve body device is a three-way reversing valve;

[0014] The contrast agent injection device is connected to the first valve port of the second valve body device through a pipeline, the second valve port of the second valve body device is connected to the third interface of the four-way connector through a pipeline, the third valve port of the second valve body device is connected to the first valve port of the third valve body device, and the second valve port of the third valve body device is connected to the branch pipe of the Y valve.

[0015] In a possible implementation, the third valve body device is a three-way reversing valve, and the second valve body assembly includes a fourth valve body device and a three-way joint;

[0016] The heparin water injection device is connected to the first interface of the three-way joint through a pipeline, the second interface of the three-way joint is connected to the fourth interface of the four-way joint through the fourth valve body device, and the third interface of the three-way joint is connected to the third valve port of the third valve body device through a pipeline.

[0017] In a possible implementation, the first valve body device is a three-way reversing valve, and the first valve port and the second valve port of the first valve body device are connected in series on the negative pressure suction pipeline;

[0018] It also includes a physiological saline container, which is connected to the third valve port of the first valve body device through a physiological saline supply pipeline, and a fifth valve body device is connected in series to the physiological saline supply pipeline.

[0019] In a possible implementation, the heparin water injection device includes a heparin water container and a positive pressure air pump, and the positive pressure air pump is used to inject the heparin water in the heparin water container into the pipeline.

[0020] In a possible implementation, when the second valve body device is in the first mode, the first valve port of the second valve body device is communicated with the third valve port and is cut off from the second valve port;

[0021] When the second valve body device is in the second mode, the first valve port of the second valve body device is connected to the second valve port and is cut off from the third valve port;

[0022] When the third valve body device is in the first mode, the first valve port of the third valve body device is connected to the second valve port and is cut off from the third valve port;

[0023] When the third valve body device is in the second mode, the first valve port of the third valve body device is communicated with the third valve port and is cut off from the second valve port;

[0024] When the third valve body device is in the third mode, the third valve port of the third valve body device is communicated with the second valve port and is cut off from the first valve port.

[0025] In a possible implementation, it further includes a control device, wherein the control device includes a first contrast medium injection mode and a second contrast medium injection mode;

[0026] When the first contrast agent injection mode of the control device is triggered, the control device controls: the second valve body device is in the first mode, the third valve body device is in the first mode, and the fourth valve body device and the first valve body device are cut off;

[0027] When the second contrast agent injection mode of the control device is triggered, the control device controls: the second valve body device is in the second mode, the third valve body device is in the second mode, the fourth valve body device and the first valve body device are cut off, and the fourth valve body device and the first valve body device are cut off.

[0028] In a possible implementation, when the first contrast agent injection mode and the second contrast agent injection mode of the control device are triggered, the control device also controls the Y-valve to hold the suction catheter tightly.

[0029] In a possible implementation, a control device is further included, wherein the control device includes a first heparin water injection mode and a second heparin water injection mode;

[0030] When the first heparin water injection mode of the control device is triggered, the control device controls: the second valve body device is in the first mode, the third valve body device is in the third mode, and the fourth valve body device and the first valve body device are cut off;

[0031] When the second heparin water injection mode of the control device is triggered, the control device controls: the second valve body device is in the first mode, the third valve body device is in the third mode, the fourth valve body device is opened, and the first valve body device is closed.

[0032] In a possible implementation, when the first heparin water injection mode and the second heparin water injection mode of the control device are triggered, the control device also controls the Y-valve to hold the suction catheter tightly.

[0033] In a possible implementation, the first valve body device is a three-way reversing valve, and the first valve port and the second valve port of the first valve body device are connected in series on the negative pressure suction pipeline;

[0034] It also includes a physiological saline container, the physiological saline container is connected to the third valve port of the first valve body device through a physiological saline supply pipeline, and a fifth valve body device is connected in series to the physiological saline supply pipeline;

[0035] When the first valve body device is in the first mode, the first valve port of the first valve body device is connected to the second valve port and is cut off from the third valve port;

[0036] When the first valve body device is in the second mode, the third valve port of the first valve body device is communicated with the second valve port and is cut off from the first valve port.

[0037] In a possible implementation, a control device is further included, wherein the control device includes a first suction mode and a second suction mode;

[0038] When the first suction mode of the control device is triggered, the control device controls: the first valve body device to repeatedly switch between the first mode and the second mode, the fifth valve body device to open, the second valve body device to be in the first mode, the third valve body device to be in the second mode, and the fourth valve body device to be closed;

[0039] When the second suction mode of the control device is triggered, the control device controls: the first valve body device is in the first mode, the fifth valve body device is open, the second valve body device is in the first mode, the third valve body device is in the second mode, and the fourth valve body device is closed.

[0040] In a possible implementation, when the first suction mode and the second suction mode of the control device are triggered, the control device also controls the Y-valve to hold the suction catheter tightly.

[0041] The interventional fluid piping system provided by the present application integrates a negative pressure suction device, a contrast agent injection device, and a heparin water injection device in the same interventional fluid piping system. The switching action of the first valve body device, the first valve body assembly, and the second valve body assembly can act on the contrast agent, heparin water, or negative pressure suction on the suction catheter or the guide catheter. The present application can integrate all the above different fluids that need to be used during the operation into one interventional fluid piping system, and through the switching action of the corresponding valve body, the corresponding fluid and negative pressure act on the suction catheter or the guide catheter, which facilitates the doctor's operation and reduces the doctor's workload. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0043] Figure 1 A system diagram of an interventional fluid pipeline system disclosed in an embodiment of the present application;

[0044] Figure 2 This is a system diagram of the interventional fluid pipeline system disclosed in an embodiment of the present application when it is in a first contrast agent injection mode;

[0045] Figure 3 This is a system diagram of the interventional fluid pipeline system disclosed in an embodiment of the present application when it is in a second contrast agent injection mode;

[0046] Figure 4 This is a system diagram of the interventional fluid pipeline system disclosed in the embodiment of the present application when it is in the first heparin water injection mode;

[0047] Figure 5 This is a system diagram of the interventional fluid pipeline system disclosed in the embodiment of the present application when it is in the second heparin water injection mode;

[0048] Figure 6 A system diagram of the interventional fluid pipeline system disclosed in an embodiment of the present application for aspirating thrombus;

[0049] Figure 7 This is a system diagram of the interventional fluid pipeline system disclosed in an embodiment of the present application when normal saline is injected.

[0050] The meanings of the reference numerals in the figures are as follows:

[0051] 101-contrast agent injection device; 102-second valve body device; 103-third valve body device; 104-Y valve; 105-four-way connector; 106-fourth valve body device; 107-three-way connector; 108-heparin water container; 109-one-way valve; 110-positive pressure inflation pump; 111-pressure sensor; 112-physiological saline container; 113-fifth valve body device; 114-first valve body device; 115-negative pressure suction device; 116-guide catheter; 117-suction catheter; 118-pressure sensor. DETAILED DESCRIPTION

[0052] The core of this application is to provide an interventional fluid pipeline system to simplify the pipeline system and reduce the workload of doctors.

[0053] The following describes the embodiments with reference to the accompanying drawings. In addition, the embodiments shown below do not limit the content of the application described in the claims. In addition, the entire content of the composition represented by the following embodiments is not limited to the solution required as the application described in the claims. It should be noted that, for the convenience of description, only the parts related to the relevant application are shown in the drawings. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other.

[0054] like Figure 1 As shown, the interventional fluid pipeline system disclosed in the embodiment of the present application includes a four-way connector 105, a Y-valve 104, a negative pressure suction device 115, a contrast agent injection device 101 and a heparin water injection device.

[0055] Among them, the four-way connector 105 has four interconnected interfaces, which are defined as the first interface, the second interface, the third interface and the fourth interface. The first interface of the four-way connector 105 is inserted into the main tube of the Y-valve 104 through the suction catheter 117. Specifically, one end of the suction catheter 117 is connected to the first interface of the four-way connector 105, and the other end is inserted through the valve port end of the main tube of the Y-valve 104. The other end (i.e., the non-valve port end) of the main tube of the Y-valve 104 is connected to the guide catheter 116. The guide catheter 116 is used to guide the lesion position of the patient's blood vessel under the action of the guide wire, and can also guide the suction catheter 117 to enter the lesion position of the blood vessel in the guide catheter 116.

[0056] The negative pressure suction device 115 is connected to the second interface of the four-way connector 105 through the negative pressure suction pipeline. The first valve body device 114 is provided on the negative pressure suction pipeline. The first valve body device 114 can cut off or connect the negative pressure suction pipeline, so that the negative pressure suction device 115 can act on the suction catheter 117 through the negative pressure suction pipeline and the four-way connector 105 to extract the thrombus. The negative pressure suction device 115 can be a negative pressure pump, and the pressure of the negative pressure suction can be -90kpa.

[0057] The contrast medium injection device 101 is connected to the branch pipe of the Y valve 104 and the third interface of the four-way connector 105 respectively through the first valve body assembly, that is, the contrast medium injection device 101 is controlled by the first valve body assembly, and the contrast medium can be injected into the branch pipe of the Y valve 104, and can also be injected into the suction catheter 117 through the four-way connector 105. The contrast medium injection device 101 can be a syringe, that is, the syringe contains contrast medium, and the fluid working pressure for injecting contrast medium can be between 1379 kPa and 2068.4 kPa. By pushing the syringe, the contrast medium can be pushed into the corresponding pipeline and finally injected into the patient's blood vessel.

[0058] The heparin water injection device is connected to the branch pipe of the Y valve 104 and the fourth interface of the four-way connector 105 respectively through the second valve body assembly, that is, the heparin water injection device is controlled by the second valve body assembly, and the heparin water can be injected into the branch pipe of the Y valve 104, and can also be injected into the suction catheter 117 through the four-way connector 105. The main function of injecting heparin water is to stably inject it into the suction catheter 117 or the guide catheter 116 and other catheters in the patient's body, so as to prevent the formation of thrombus and plaque in the catheter due to stagnation or slow blood flow, thereby affecting the normal use of the catheter, or after the thrombus enters the patient's blood vessel, it forms a secondary injury to the blood vessel.

[0059] The heparin water injection device may include a heparin water container 108 and a positive pressure air pump 110, and the positive pressure air pump 110 is used to inject the heparin water in the heparin water container 108 into the pipeline. The heparin water container 108 may be a flexible plastic bag containing heparin water.

[0060] Since the sheath and catheter enter the corresponding vascular system from the patient's artery, and the human artery has a certain positive pressure, namely: systolic pressure: 12~18.6kpa (90~140mmHg), diastolic pressure: 8~12kpa (60~90mmHg), in order to ensure that the heparin water in the heparin water container 108 can stably and evenly enter the patient's body, it is impossible to inject it only by the heparin water container 108, and it is necessary to load a certain pressure on the heparin water, so as to achieve the heparin water stably and evenly entering the patient's catheter and blood vessels to exert its pharmacological effect. Therefore, it is necessary to load a certain positive pressure on the heparin water container 108, and this pressure should be appropriately higher than the systolic pressure of the human artery to ensure the normal dripping of the heparin water, that is, to provide the heparin water container 108 with a loading pressure through the positive pressure inflation pump 110. That is, the outlet of the positive pressure inflation pump 110 is connected to the heparin water container 108 through a pipeline to pressurize the heparin water container 108.

[0061] A pressure sensor 111 may also be provided to detect the working pressure of the heparin water container 108, so as to provide real-time feedback to the control main board, and the control main board controls the start and stop of the positive pressure air pump 110 according to the pressure value in the heparin water container 108, so as to ensure the stability of the pressure in the heparin water container 108. A one-way valve 109 is installed at the outlet of the positive pressure air pump 110 to prevent the gas pressure in the heparin water container 108 from leaking through the positive pressure air pump 110 when the positive pressure air pump 110 stops working.

[0062] The interventional fluid piping system disclosed in the embodiment of the present application integrates the negative pressure suction device 115, the contrast agent injection device 101 and the heparin water injection device in the same interventional fluid piping system, and through the switching action of the first valve body device 114, the first valve body assembly and the second valve body assembly, the contrast agent, heparin water or negative pressure suction can be applied to the suction catheter 117 or the guide catheter 116. The embodiment of the present application can integrate all the above different fluids that need to be used during the operation into one interventional fluid piping system, and through the switching action of the corresponding valve body, the corresponding fluid and negative pressure can be applied to the suction catheter 117 or the guide catheter 116, which facilitates the doctor's operation and reduces the doctor's workload.

[0063] In a specific embodiment of the present application, the first valve body assembly includes a second valve body device 102 and a third valve body device 103, and the second valve body device 102 is a three-way reversing valve. It can be understood by those skilled in the art that the three-way reversing valve can change the connection relationship of its three valve ports through a reversing action to adjust the flow direction of the medium.

[0064] The contrast agent injection device 101 is connected to the first valve port a2 of the second valve body device 102 through a pipeline, the second valve port b2 of the second valve body device 102 is connected to the third interface of the four-way connector 105 through a pipeline, the third valve port c2 of the second valve body device 102 is connected to the first valve port a3 of the third valve body device 103, and the second valve port b3 of the third valve body device 103 is connected to the branch pipe of the Y valve 104.

[0065] By switching the second valve body device 102, the first valve port a2 and the third valve port c2 of the second valve body device 102 are connected, and the second valve port b2 is cut off, that is, the first valve port a2 and the third valve port c2 are not connected to the second valve port b2. By controlling the first valve port a3 and the second valve port b3 of the third valve body device 103, the contrast agent injection device 101 can inject the contrast agent into the branch of the Y valve 104, that is, inject it into the guide catheter 116, so as to realize the manipulation and angiography of the intracranial blood vessels.

[0066] By switching the second valve body device 102, the first valve port a2 and the second valve port b2 of the second valve body device 102 are connected, and the third valve port c2 is cut off, that is, the first valve port a2 and the second valve port b2 are not connected with the third valve port c2, the contrast agent injection device 101 can inject contrast agent into the suction catheter 117, complete the observation and judgment of the position of the suction catheter 117, and assist in guiding the suction catheter 117 to the thrombus position.

[0067] Furthermore, the third valve body device 103 may also be a three-way reversing valve, and the second valve body assembly includes a fourth valve body device 106 and a three-way connector 107 .

[0068] The heparin water injection device is connected to the first interface of the three-way connector 107 through a pipeline, the second interface of the three-way connector 107 is connected to the fourth interface of the four-way connector 105 through the fourth valve body device 106, and the third interface of the three-way connector 107 is connected to the third valve port c3 of the third valve body device 103 through a pipeline.

[0069] By switching the third valve body device 103, the third valve port c3 and the second valve port b3 of the third valve body device 103 are connected and cut off from the first valve port a3, that is, the third valve port c3 and the second valve port b3 of the third valve body device 103 are not connected to the first valve port a3. And closing the fourth valve body device 106 will cause the heparin water injection device to inject heparin water into the guide catheter 116. When inserting the guide catheter 116 into the patient's blood vessel, heparin water can be injected into the guide catheter 116.

[0070] By switching the third valve body device 103, the third valve port c3 and the second valve port b3 of the third valve body device 103 are connected and cut off from the first valve port a3, that is, the third valve port c3 and the second valve port b3 of the third valve body device 103 are not connected to the first valve port a3. And opening the fourth valve body device 106 will cause the heparin water injection device to inject heparin water into the guide catheter 116 and the suction catheter 117. When the guide catheter 116 and the suction catheter 117 are inserted into the blood vessel, the heparin water can be injected into the guide catheter 116 and the suction catheter 117 at the same time.

[0071] In a specific embodiment of the present application, the first valve body device 114 can also be a three-way reversing valve, and the first valve port a1 and the second valve port b1 of the first valve body device 114 are connected in series on the negative pressure suction pipeline, that is, when the first valve port a1 and the second valve port b1 are connected, the negative pressure suction pipeline can remain connected, and when the first valve port a1 and the second valve port b1 are cut off, the negative pressure suction pipeline is cut off.

[0072] The interventional fluid pipeline system may also include a physiological saline container 112, which is connected to the third valve port c1 of the first valve body device 114 through a physiological saline supply pipeline, and a fifth valve body device 113 is connected in series to the physiological saline supply pipeline. The physiological saline container 112 may be a flexible bag, which contains physiological saline, and the pressure of the physiological saline container 112 is 0 kpa. When one of the fluids needs to be introduced into the catheter (the guide catheter 116 and the suction catheter 117), the other fluids need to be cut off and separated from the fluid injected at this time, so that the required main functions can be achieved after the corresponding fluid is injected. Therefore, corresponding switching or switch control needs to be performed for the flow path of each fluid and the valve body required in the path.

[0073] When the first valve port a1 and the second valve port b1 of the first valve body device 114 are connected and the third valve port c1 is cut off, the negative pressure suction device 115 can apply negative pressure to the negative pressure suction pipeline, and finally to the suction catheter 117. When the third valve port c1 and the second valve port b1 of the first valve body device 114 are connected and the first valve port a1 is cut off, and the fifth valve body device 113 is opened, the physiological saline container 112 is connected to the negative pressure suction pipeline. If the pipeline is in a negative pressure state under the action of the negative pressure suction device 115, the physiological saline container 112 will enter the pipeline to reduce the problem of thrombus reflux after the negative pressure is quickly cut off. After the negative pressure in the pipeline is cut off, the physiological saline is sucked into the pipeline by the negative pressure of the pipeline to balance the pressure of the pipeline and reduce the impact of the medium.

[0074] In a specific embodiment of the present application, when the second valve body device 102 is in the first mode, the first valve port a2 of the second valve body device 102 is communicated with the third valve port c2, and is blocked with the second valve port b2. When the second valve body device 102 is in the second mode, the first valve port c of the second valve body device 102 is communicated with the second valve port b, and is blocked with the third valve port a.

[0075] When the third valve body device 103 is in the first mode, the first valve port a3 of the third valve body device 103 is connected to the second valve port b3 and is cut off from the third valve port c3; when the third valve body device 103 is in the second mode, the first valve port a3 of the third valve body device 103 is connected to the third valve port c3 and is cut off from the second valve port b3; when the third valve body device 103 is in the third mode, the third valve port c3 of the third valve body device 103 is connected to the second valve port b3 and is cut off from the first valve port a3.

[0076] The second valve body device 102 and the third valve body device 103 can be solenoid valves, and the modes they are in can be controlled by the control device. For example, the second valve body device 102 has two modes, and the switching between the first mode and the second mode can be realized by energizing the electromagnet at one end and the electromagnet at the other end; of course, the second valve body device 102 can also have only one electromagnet, that is, the switching between the first mode and the second mode is realized by energizing and de-energizing the electromagnet. The third valve body device 103 has three modes, and the switching between the first mode, the second mode and the third mode can be realized by energizing the electromagnet at one end, energizing the electromagnet at the other end, and de-energizing the electromagnets at both ends. It should be noted that when the electromagnet at one end mentioned above is energized, the electromagnet at the other end is in a de-energized state, that is, when the solenoid valve has two electromagnets, when one of them is energized, the other is in a de-energized state.

[0077] Those skilled in the art can understand that the second valve body device 102 and the third valve body device 103 can be switched in various ways. The above is only an example and does not constitute a limitation to this solution, as long as the switching between modes can be achieved. Of course, the second valve body device 102 and the third valve body device 103 can also be hydraulically controlled valves.

[0078] like Figure 2 and Figure 3 As shown, Figure 2 and Figure 3 The thick solid line in the figure is the flow path of the contrast agent.

[0079] In a specific embodiment of the present application, the interventional fluid pipeline system may further include a control device (not shown in the figure), the control device including a first contrast agent injection mode and a second contrast agent injection mode. The control device may include a mode selection unit to select a corresponding mode. The mode selection unit is not limited to a control button, a display screen, etc., as long as it can realize the selection of the mode.

[0080] When the contrast agent in the contrast agent injection device 101 needs to enter the guide catheter 116 through the illustrated pipeline, the pipelines of the negative pressure suction device 115, the saline container 112, and the heparin water container 108 need to be disconnected from the guide catheter 116 to prevent the contrast agent from mixing with other fluids, which would cause the contrast agent concentration at the corresponding blood vessel position to decrease, resulting in a poor contrast effect or even a failure of contrast imaging.

[0081] Since the working pressure of the fluid for contrast agent injection is between 1379 kpa and 2068.4 kpa, the working pressure of heparin water injection is 40 kpa, the saline in the saline container 112 is at normal pressure 0 kpa, and the pressure of negative pressure suction is -90 kpa, when one of the fluids needs to pass through the guide catheter 116, the other fluids need to be cut off and separated from the fluid being injected at this time to achieve the required main functions after the corresponding fluid is injected.

[0082] like Figure 2 As shown, when the first contrast agent injection mode of the control device is triggered, the control device controls: the second valve body device 102 is in the first mode, the third valve body device 103 is in the first mode, and the fourth valve body device 106 and the first valve body device 114 are cut off.

[0083] For example, when the doctor has pushed the guide catheter 116 to the vicinity of the patient's common carotid artery, and when the guide catheter 116 needs to perform intracranial vascular manipulation and whole-brain angiography, the contrast agent in the contrast agent injection device 101 can be pushed into the guide catheter 116 through the driving mechanism. One end of the guide catheter 116 can be fixedly connected to one end of the main pipe of the Y-valve 104 using a Luer connector, one end of the suction catheter 117 is connected to the four-way connector 105, and the other end of the suction catheter 117 is pushed by the doctor into the valve port of the main pipe of the Y-valve 104, and the valve port can be controlled to be on and off by an external actuator.

[0084] Therefore, when the second valve body device 102 is in the first mode, the third valve body device 103 is in the first mode, and the fourth valve body device 106 and the first valve body device 114 are cut off, the driving mechanism pushes the contrast agent in the contrast agent injection device 101 into the pipeline, and enters from the first valve port a2 of the second valve body device 102, flows out from the third valve port c2, and then enters from the first valve port a3 of the third valve body device 103, and flows out from the second valve port b3. After the contrast agent flows out of the third valve body device 103, it enters the guide catheter 116 through the branch of the Y valve 104. The contrast agent is injected into the guide catheter 116, thereby realizing the manipulation and angiography of the intracranial blood vessels.

[0085] It should be noted that, in the first contrast agent injection mode, the third valve body device 103 is switched to the first mode, so that the third valve port c2 of the third valve body device 103 is cut off, and then the connection between the heparin water and the guide catheter 116 can be cut off to prevent the heparin water from diluting the contrast agent. The fourth valve body device 106 is controlled to be in a cut-off state, so that the connection between the heparin water and the suction catheter 117 can be cut off to prevent the heparin water from diluting the contrast agent. The first valve body device 114 is controlled to be in a cut-off state to prevent negative pressure from acting on the suction catheter 117.

[0086] like Figure 3 As shown, when the second contrast agent injection mode of the control device is triggered, the control device controls: the second valve body device 102 is in the second mode, the third valve body device 103 is in the second mode, the fourth valve body device 106 and the first valve body device 114 are cut off, and the fourth valve body device 106 and the first valve body device 114 are cut off.

[0087] After the doctor pushes the suction catheter 117 into the guide catheter 116, when it is necessary to determine the relative position of the suction catheter 117 in the patient's body, it is necessary to inject and push the contrast agent into the suction catheter 117. When the second contrast agent injection mode of the control device is triggered, the driving mechanism pushes the contrast agent in the contrast agent injection device 101 into the pipeline, and enters through the first valve port a2 of the second valve body device 102 and flows out through the first valve port b2. After the contrast agent flows out of the second valve body device 102, it enters the suction catheter 117 through the four-way connector 105, completing the observation and determination of the position of the suction catheter 117.

[0088] It should be noted that, in the second contrast agent injection mode, the third valve body device 103 is switched to the second mode, so that the second valve port b2 of the third valve body device 103 is cut off, and then the connection between the heparin water and the guide catheter 116 can be cut off to prevent the heparin water from diluting the contrast agent. The fourth valve body device 106 is controlled to be in a cut-off state, so that the connection between the heparin water and the suction catheter 117 can be cut off to prevent the heparin water from diluting the contrast agent. The first valve body device 114 is controlled to be in a cut-off state to prevent negative pressure from acting on the suction catheter 117.

[0089] It should be noted that when the first contrast agent injection mode and the second contrast agent injection mode of the control device are triggered, the control device also controls the valve port of the Y-valve 104 to hold the suction catheter 117 tightly to achieve sealing between the suction catheter 117 and the Y-valve 104 to prevent the contrast agent from flowing out. When the suction catheter 117 needs to be moved or rotated, the valve port of the Y-valve 104 is controlled to open.

[0090] like Figure 4 and Figure 5 As shown, Figure 4 and Figure 5 The thick solid line in the figure is the flow path of heparin water.

[0091] The interventional fluid pipeline system also includes a control device (the control device and the control device disclosed in the above embodiment can be the same control device or different control devices), and the control device includes a first heparin water injection mode and a second heparin water injection mode. The control device may include a mode selection unit to select a corresponding mode. The mode selection unit is not limited to a control button, a display screen, etc., as long as the mode selection can be realized.

[0092] When injecting heparin water to a patient, there are two working paths of heparin water, which correspond to the first heparin water injection mode and the second heparin water injection mode respectively.

[0093] like Figure 4As shown, when the first heparin water injection mode of the control device is triggered, the control device controls: the second valve body device 102 is in the first mode, the third valve body device 103 is in the third mode, and the fourth valve body device 106 and the first valve body device 114 are cut off.

[0094] The heparin water in the heparin water container 108 is pushed into the pipeline under pressure, and enters the third valve body device 103 through the three-way connector 107, enters from the third valve port c3 of the third valve body device 103, flows out from the first valve port b3, and enters the guide catheter 116 through the branch pipe of the Y valve 104, thereby preventing the formation of thrombus and plaque in the guide catheter 116 due to stagnation or slow blood flow.

[0095] It should be noted that when the first heparin water injection mode of the control device is triggered, the second valve body device 102 is switched to the first mode, that is, the second valve port of the second valve body device 102 is cut off to prevent the contrast agent from flowing into the suction catheter 117 and flowing into the guide catheter 116 through the suction catheter 117 to dilute the concentration of the heparin water. The fourth valve body device 106 is controlled to be in a cut-off state, which can cut off the communication between the heparin water and the suction catheter 117, so that the heparin water only enters the guide catheter 116 (that is, when the suction catheter 117 has not been pushed to the lesion site, this first heparin water injection mode can be used). The first valve body device 114 is controlled to be in a cut-off state to prevent negative pressure from acting on the suction catheter 117.

[0096] like Figure 5 As shown, when the second heparin water injection mode of the control device is triggered, the control device controls: the second valve body device 102 is in the first mode, the third valve body device 103 is in the third mode, the fourth valve body device 106 is opened, and the first valve body device 114 is closed.

[0097] The heparin water in the heparin water container 108 is pushed into the pipeline under pressure, and enters the third valve body device 103 through the three-way connector 107, enters from the third valve port c3 of the third valve body device 103, flows out from the first valve port b3, and enters the guide catheter 116 through the branch pipe of the Y valve 104, thereby preventing the formation of thrombus and plaque in the guide catheter 116 due to stagnation or slow blood flow.

[0098] The heparin water in the heparin water container 108 can also enter the suction catheter 117 through the fourth valve body device 106 and the four-way connector 105, thereby preventing thrombus and plaque from forming due to stagnation or slow blood flow in the suction catheter 117. That is, this mode can be used when the suction catheter 117 has been pushed to the lesion site.

[0099] It should be noted that when the second heparin solution injection mode of the control device is triggered, the second valve body device 102 is switched to the first mode, that is, the second valve port of the second valve body device 102 is cut off to prevent the contrast agent from flowing into the suction catheter 117 and diluting the concentration of the heparin solution. The first valve body device 114 is controlled to be in the cut-off state to prevent negative pressure from acting on the suction catheter 117.

[0100] It should be noted that when the first heparin water injection mode and the second heparin water injection mode of the control device are triggered, the control device also controls the valve port of the Y-valve 104 to hold the suction catheter 117 tightly to achieve sealing between the suction catheter 117 and the Y-valve 104 to prevent the heparin water from flowing out. When the suction catheter 117 needs to be moved or rotated, the valve port of the Y-valve 104 is controlled to open.

[0101] In a specific embodiment of the present application, the first valve body device 114 is a three-way reversing valve, and the first valve port a1 and the second valve port b1 of the first valve body device 114 are connected in series on the negative pressure suction pipeline, that is, when the first valve port a1 and the second valve port b1 are connected, the negative pressure suction pipeline can remain connected, and when the first valve port a1 and the second valve port b1 are cut off, the negative pressure suction pipeline is cut off.

[0102] The interventional fluid pipeline system may further include a physiological saline container 112 , which is connected to the third valve port c1 of the first valve body device 114 through a physiological saline supply pipeline, and a fifth valve body device 113 is connected in series to the physiological saline supply pipeline.

[0103] When the first valve body device 114 is in the first mode, the first valve port a1 of the first valve body device 114 is connected to the second valve port b1 and is cut off from the third valve port c1; when the first valve body device 114 is in the second mode, the third valve port c1 of the first valve body device 114 is connected to the second valve port b1 and is cut off from the first valve port a1.

[0104] The first valve body device 114 may be a solenoid valve, and the mode it is in can be controlled by the control device. For example, the second valve body device 102 has two modes, and the first mode and the second mode can be switched by energizing the electromagnet at one end and the electromagnet at the other end respectively; of course, the first valve body device 114 may also have only one electromagnet, that is, the switching between the first mode and the second mode is achieved by energizing and de-energizing the electromagnet.

[0105] Those skilled in the art can understand that the first valve body device 114 can be switched in various ways. The above is only an example and does not constitute a limitation to this solution, as long as the mode switching can be achieved. Of course, the first valve body device 114 can also be a hydraulically controlled valve.

[0106] like Figure 6 and Figure 7 As shown, Figure 6 The thick solid line in the figure is the negative pressure action path. Figure 7 The thick solid line in the figure is the action path of saline.

[0107] The interventional fluid pipeline system may also include a control device. The control device may be the same control device as the control device disclosed in the above embodiment, or may be a different control device). The control device includes a first suction mode and a second suction mode. The control device may include a mode selection unit to select a corresponding mode. The mode selection unit is not limited to a control button, a display screen, etc., as long as the mode selection can be realized.

[0108] When the doctor pushes the suction catheter 117 to the vicinity of the thrombus in the blood vessel, the doctor ensures through image observation that the suction catheter 117 has captured the corresponding thrombus block. At this time, negative pressure can be connected to the suction catheter 117 to perform negative pressure suction. Under the control of the negative pressure suction device 115 and the first valve body device 114, the suction catheter 117 can have two action modes (i.e., the first suction mode and the second suction mode).

[0109] When the first suction mode of the control device is triggered, the control device controls: the first valve body device 114 repeatedly switches between the first mode and the second mode, the fifth valve body device 113 opens, the second valve body device 102 is in the first mode, the third valve body device 103 is in the second mode, and the fourth valve body device 106 is cut off.

[0110] When the first valve body device 114 is in the first mode, the negative pressure generated by the negative pressure suction device 115 can act on the suction conduit 117 through the first valve port a1 and the second valve port b1 of the first valve body device 114 and the four-way joint 105 .

[0111] When the first valve body device 114 is in the second mode, the negative pressure generated by the negative pressure suction device 115 cannot act on the suction catheter 117 , and the saline in the saline container 112 flows into the pipeline through the third valve port c1 and the second valve port b1 of the first valve body device 114 .

[0112] When the first suction mode of the control device is triggered, the third valve port c1 and the first valve port a1 of the first valve body device 114 can be switched at a certain frequency under the periodic action of the first valve body device 114, so as to provide a pulsed negative pressure to the suction catheter 117. This process can split the larger thrombus under the action of the pulse pressure and quickly suck it into the suction catheter 117 and the negative pressure tank (for storing the extracted blood and thrombus and other tissues).

[0113] When the second suction mode of the control device is triggered, the control device controls: the first valve body device 114 is in the first mode, the fifth valve body device 113 is closed, the second valve body device 102 is in the first mode, the third valve body device 103 is in the second mode, and the fourth valve body device 106 is cut off. The second suction mode can achieve the purpose of continuous suction and removal of thrombus in the corresponding blood vessel by the suction catheter 117.

[0114] It should be noted that when the first suction mode and the second suction mode of the control device are triggered, the second valve body device 102 is switched to the first mode, that is, the second valve port b2 of the second valve body device 102 is cut off to prevent the contrast medium from flowing into the suction catheter 117. The third valve body device 103 is switched to the second mode, so that the second valve port b3 of the third valve body device 103 is cut off, so that the contrast medium and the heparin solution cannot flow into the guide catheter 116. The fourth valve body device 106 is controlled to be in a cut-off state, so that the heparin solution cannot flow into the suction catheter 117.

[0115] The suction catheter 117 can realize the above two suction modes under the action of the first valve body device 114. The negative pressure suction device 115 can be maintained within a constant value range set by the doctor. The pressure sensor 118 can be used to detect in real time and control the operation of the negative pressure suction device 115 to ensure that the pressure in the negative pressure suction device 115 is within the required range, and the pressure in the negative pressure tank will not be reduced due to the entry of thrombus blood.

[0116] Those skilled in the art can understand that when the first suction mode and the second suction mode of the control device are triggered, the control device also controls the valve port of the Y-valve 104 to hold the suction catheter 117 tightly, so as to achieve sealing between the suction catheter 117 and the Y-valve 104, and ensure that the negative pressure can be maintained. When the suction catheter 117 needs to be moved or rotated, the valve port of the Y-valve 104 is controlled to open.

[0117] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "a kind" and / or "the" do not refer to the singular, but also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements. The elements defined by the sentence "includes a..." do not exclude the existence of other identical elements in the process, method, commodity or device that includes the elements.

[0118] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0119] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0120] Specific examples are used herein to illustrate the principles and implementation methods of the present application, and the description of the above embodiments is only used to help understand the method and core ideas of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. An interventional fluid pipeline system, characterized in that: include: A four-way connector (105) and a Y-valve (104), wherein a first interface of the four-way connector (105) is inserted into a main pipe of the Y-valve (104) through a suction catheter (117), and one end of the main pipe of the Y-valve (104) is connected to a guide catheter (116); A negative pressure suction device (115) connected to the second interface of the four-way connector (105) via a negative pressure suction pipeline, wherein a first valve body device (114) is provided on the negative pressure suction pipeline; A contrast agent injection device (101) is connected to the branch pipe of the Y valve (104) and the third interface of the four-way connector (105) respectively through a first valve body assembly; The heparin water injection device is connected to the branch pipe of the Y valve (104) and the fourth interface of the four-way connector (105) respectively through the second valve body assembly.

2. The interventional fluid pipeline system according to claim 1, characterized in that: The first valve body assembly comprises a second valve body device (102) and a third valve body device (103); the second valve body device (102) is a three-way reversing valve; The contrast agent injection device (101) is connected to the first valve port (a2) of the second valve body device (102) through a pipeline, the second valve port (b2) of the second valve body device (102) is connected to the third interface of the four-way connector (105) through a pipeline, the third valve port (c2) of the second valve body device (102) is connected to the first valve port (a3) ​​of the third valve body device (103), and the second valve port (b3) of the third valve body device (103) is connected to the branch pipe of the Y valve (104).

3. The interventional fluid pipeline system according to claim 2, characterized in that: The third valve body device (103) is a three-way reversing valve, and the second valve body assembly comprises a fourth valve body device (106) and a three-way connector (107); The heparin water injection device is connected to the first interface of the three-way connector (107) through a pipeline, the second interface of the three-way connector (107) is connected to the fourth interface of the four-way connector (105) through the fourth valve body device (106), and the third interface of the three-way connector (107) is connected to the third valve port (c3) of the third valve body device (103) through a pipeline.

4. The interventional fluid pipeline system according to any one of claims 1 to 3, characterized in that: The first valve body device (114) is a three-way reversing valve, and the first valve port (a1) and the second valve port (b1) of the first valve body device (114) are connected in series on the negative pressure suction pipeline; It also comprises a physiological saline container (112), the physiological saline container (112) being in communication with the third valve port (c1) of the first valve body device (114) via a physiological saline supply pipeline, and the physiological saline supply pipeline is connected in series with a fifth valve body device (113).

5. The interventional fluid pipeline system according to any one of claims 1 to 3, characterized in that: The heparin water injection device comprises a heparin water container (108) and a positive pressure air pump (110), wherein the positive pressure air pump (110) is used to inject the heparin water in the heparin water container (108) into a pipeline.

6. The interventional fluid pipeline system according to claim 3, characterized in that: When the second valve body device (102) is in the first mode, the first valve port (a2) of the second valve body device (102) is connected to the third valve port (c2) and is blocked from the second valve port (b2); When the second valve body device (102) is in the second mode, the first valve port (c) of the second valve body device (102) is connected to the second valve port (b) and is blocked from the third valve port (a); When the third valve body device (103) is in the first mode, the first valve port (a3) ​​of the third valve body device (103) is connected to the second valve port (b3) and is blocked from the third valve port (c3); When the third valve body device (103) is in the second mode, the first valve port (a3) ​​of the third valve body device (103) is connected to the third valve port (c3) and is blocked from the second valve port (b3); When the third valve body device (103) is in the third mode, the third valve port (c3) of the third valve body device (103) is connected to the second valve port (b3) and is blocked from the first valve port (a3).

7. The interventional fluid pipeline system according to claim 6, characterized in that: Also included is a control device, the control device including a first contrast medium injection mode and a second contrast medium injection mode; When the first contrast agent injection mode of the control device is triggered, the control device controls: the second valve body device (102) to be in the first mode, the third valve body device (103) to be in the first mode, and the fourth valve body device (106) and the first valve body device (114) to be cut off; When the second contrast agent injection mode of the control device is triggered, the control device controls: the second valve body device (102) is in the second mode, the third valve body device (103) is in the second mode, the fourth valve body device (106) and the first valve body device (114) are cut off, and the fourth valve body device (106) and the first valve body device (114) are cut off.

8. The interventional fluid pipeline system according to claim 7, characterized in that: When the first contrast agent injection mode and the second contrast agent injection mode of the control device are triggered, the control device also controls the Y-valve (104) to hold the suction catheter (117).

9. The interventional fluid pipeline system according to claim 6, characterized in that: Also included is a control device, the control device including a first heparin water injection mode and a second heparin water injection mode; When the first heparin water injection mode of the control device is triggered, the control device controls: the second valve body device (102) to be in the first mode, the third valve body device (103) to be in the third mode, and the fourth valve body device (106) and the first valve body device (114) to be cut off; When the second heparin water injection mode of the control device is triggered, the control device controls: the second valve body device (102) to be in the first mode, the third valve body device (103) to be in the third mode, the fourth valve body device (106) to be opened, and the first valve body device (114) to be closed.

10. The interventional fluid pipeline system according to claim 9, characterized in that: When the first heparin water injection mode and the second heparin water injection mode of the control device are triggered, the control device also controls the Y-valve (104) to hold the suction catheter (117).

11. The interventional fluid pipeline system according to claim 6, characterized in that: The first valve body device (114) is a three-way reversing valve, and the first valve port (a1) and the second valve port (b1) of the first valve body device (114) are connected in series on the negative pressure suction pipeline; It also includes a physiological saline container (112), the physiological saline container (112) being in communication with the third valve port (c1) of the first valve body device (114) via a physiological saline supply pipeline, and the physiological saline supply pipeline is connected in series with a fifth valve body device (113); When the first valve body device (114) is in the first mode, the first valve port (a1) of the first valve body device (114) is connected to the second valve port (b1) and is blocked from the third valve port (c1); When the first valve body device (114) is in the second mode, the third valve port (c1) of the first valve body device (114) is connected to the second valve port (b1) and is blocked from the first valve port (a1).

12. The interventional fluid pipeline system according to claim 11, characterized in that: Also included is a control device, the control device including a first suction mode and a second suction mode; When the first suction mode of the control device is triggered, the control device controls: the first valve body device (114) to switch repeatedly between the first mode and the second mode, the fifth valve body device (113) to open, the second valve body device (102) to be in the first mode, the third valve body device (103) to be in the second mode, and the fourth valve body device (106) to be closed; When the second suction mode of the control device is triggered, the control device controls: the first valve body device (114) to be in the first mode, the fifth valve body device (113) to be open, the second valve body device (102) to be in the first mode, the third valve body device (103) to be in the second mode, and the fourth valve body device (106) to be closed.

13. The interventional fluid pipeline system according to claim 12, characterized in that: When the first suction mode and the second suction mode of the control device are triggered, the control device also controls the Y-valve (104) to hold the suction catheter (117).

Images