Connection device and embolism removal system

Abstract

This specification provides a connecting device and an embolus removal system. The connecting device includes a first tube and a plurality of second tubes. The first tube has a first channel internally, which connects a first end and a second end of the first tube. The first end of the first tube is connected to a guiding device, and the second end of the first tube is connected to a second tube. The second tube has a second channel internally, which connects a first end and a second end of the second tube. The angle between the axis of the second channel and the axis of the first channel is greater than 90°. The first end of the second tube is connected to the first tube, and the second end of the second tube is connected to a suction device. Therefore, when multiple suction devices are used in combination, the risk of embolus blockage can be reduced, and the continuity, efficiency, and flexibility of the embolus removal process can be improved.

Description

Technical Field

[0001] This specification relates to the field of medical device technology, and in particular to a connection device and an embolus removal system. Background Technology

[0002] Emboli may exist in human blood vessels, and as they grow larger, they can gradually block the vessels. One existing method for removing emboli involves inserting a suction catheter into the patient's blood vessel, with one end connected to a suction device and the other end inserted into the body through the blood vessel. Once the catheter reaches the lesion site, the suction device can draw the emboli along with the blood from the blood vessel and remove it from the body, thus clearing the emboli from the patient's body.

[0003] However, the volume of a single suction device is limited. Before the embolus is completely removed, the cavity of the suction device may be filled with aspirated fluid (including at least one of blood and embolus). It takes time to empty the fluid from the cavity before embolus removal can continue, resulting in a discontinuous and cumbersome suction process, thus affecting the efficiency of embolus removal. To address the problem of the limited volume of a single suction device, existing technologies have proposed using multiple suction devices in combination to achieve a larger volume.

[0004] like Figure 1 The diagram shown is a schematic of a combination structure of multiple suction devices. Figure 1 The device has two suction devices, namely a first syringe 01 and a second syringe 02, and a one-way valve 03 spans between the first syringe 01 and the second syringe 02, allowing fluid from the first syringe 01 to flow into the second syringe 02 and preventing fluid from the second syringe 02 from flowing into the first syringe 01. During the outward pulling of the push-pull rod 021 of the second syringe 02, the one-way valve 03 opens to allow fluid to flow into the first syringe 01 and through the first syringe 01 into the second syringe 02.

[0005] However, in the above structure, the one-way valve 03 forms a vertical bend at the connection of multiple suction devices (such as...). Figure 1 The vertical angles between the first syringe 01 and the one-way valve 03, and between the second syringe 02 and the one-way valve 03, make it easy for emboli to get stuck when passing through the vertical angles, resulting in reduced suction. In fact, as the amount of stuck emboli increases, it may even cause blockage at the vertical angles, causing the suction supply to be interrupted. If there are still emboli in the patient's body to be aspirated at this time, it will take time to disassemble the first syringe 01, the second syringe 02 and the one-way valve 03, remove the emboli, and then continue to aspirate the emboli. This makes the emboli aspiration process discontinuous and still affects the emboli aspiration efficiency.

[0006] As can be seen from the above, how to reduce the probability of emboli retention when multiple suction devices are used in combination is a problem that needs to be solved by those skilled in the art. Summary of the Invention

[0007] In view of this, embodiments of this specification provide a connecting device and an embolus removal system that, when used in combination with multiple suction devices, can reduce the risk of embolus blockage and improve the continuity, efficiency, and flexibility of the embolus suction process.

[0008] This specification provides a connecting device, comprising: a first tube and a plurality of second tubes; wherein:

[0009] The first tube has a first channel inside, which connects the first end and the second end of the first tube. The first end of the first tube is connected to a guiding device, and the second end of the first tube is connected to the second tube.

[0010] The second tube has a second channel inside, which connects the first end and the second end of the second tube. The angle between the axis of the second channel and the axis of the first channel is greater than 90°. The first end of the second tube is connected to the first tube, and the second end of the second tube is connected to the suction device.

[0011] Optionally, the connecting device further includes: a plurality of switching components, respectively disposed between the second end of the corresponding second tube and the suction device.

[0012] Optionally, the connecting device further includes: a plurality of first flexible hoses, each connecting the second end of a corresponding second tube to the switch component.

[0013] Optionally, the connecting device further includes:

[0014] An embolism discharge port is located at the connection between the first pipe and the second pipe;

[0015] A sealing component adapted to open or close the outlet of the plug.

[0016] Optionally, the sealing component includes: an extension tube and a sealing sub-component; wherein:

[0017] The extension tube has a hollow structure, its first end is sealed to the outlet of the plug, its second end is detachably connected to the first end of the sealing component, and the extension tube is also bound to the second end of the sealing component.

[0018] The sealing component has an outer diameter at its first end that matches the inner diameter at its second end, and is suitable for entering or exiting the second end of the extension tube.

[0019] Optionally, the sealing component has a Luer joint structure.

[0020] Optionally, the overall shape of the cross-section of two adjacent second tubes along the axial direction of the corresponding second channel is V-shaped or U-shaped.

[0021] Optionally, the first tube further includes: a first connecting structure disposed at the first end of the first tube and adapted to protrude toward the second end of the first tube.

[0022] Optionally, the first tube further includes a first column structure disposed between the first connecting structure and the second end of the first tube, wherein the maximum outer diameter of the first column structure is smaller than the maximum outer diameter of the first connecting structure.

[0023] Optionally, the second tube further includes a second connecting structure disposed at the second end of the second tube and adapted to protrude toward the first end of the second tube.

[0024] Optionally, the second tube further includes a second column structure disposed between the second connecting structure and the first end of the second tube, wherein the maximum outer diameter of the second column structure is smaller than the maximum outer diameter of the second connecting structure.

[0025] This specification also provides an embolus removal system, comprising:

[0026] Guiding device;

[0027] Multiple suction devices;

[0028] The connecting device described in any of the above embodiments includes a first end and a plurality of second ends. The first end of the connecting device is connected to the guiding device, and the plurality of second ends of the connecting device are respectively connected to a plurality of suction devices.

[0029] Optionally, the embolus removal system further includes a plurality of second flexible hoses, each connected to the connecting device and a corresponding suction device.

[0030] The connecting device used in the embodiments of this specification includes a first tube and multiple second tubes. By setting the angle between the axis of the first channel inside the first tube and the axis of the second channel of the second tube to be greater than 90°, the corner angle between the first and second tubes can be reduced, allowing the embolus to pass more smoothly through the first and second tubes. Therefore, when multiple suction devices are used in combination, the probability of the embolus remaining at the connection point of the multiple suction devices can be reduced, thereby reducing the risk of embolus blockage and improving the continuity and efficiency of the embolus suction process. Furthermore, the multiple second tubes provide multiple path options for the fluid inside the connecting device, thereby increasing the flexibility of the embolus suction process.

[0031] Furthermore, the connecting device also includes multiple switching components, each disposed between the second end of the corresponding second tube and the suction device. Thus, by opening or closing the switching components, the connection between the corresponding second tube and the suction device can be controlled to be open or closed, thereby controlling the movement path of the fluid inside the connecting device, improving the controllability of the connecting device, ensuring the continuity of the embolus suction process, and improving suction efficiency.

[0032] Furthermore, the connecting device also includes an embolus discharge port and a sealing component; the embolus discharge port is located at the connection between the first pipe body and the second pipe body; the sealing component is detachably connected to the embolus discharge port. Thus, through the embolus discharge port, any blockages inside the connecting device can be quickly removed, ensuring unobstructed flow within the connecting device's internal pipelines. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of a combination structure of multiple existing suction devices.

[0035] Figure 2a This is a schematic diagram of a connecting device provided in an embodiment of this specification.

[0036] Figure 2b for Figure 2a A cross-sectional structural diagram of the connecting device shown.

[0037] Figure 3 This is a schematic diagram of another connecting device provided in the embodiments of this specification.

[0038] Figure 4 This is a schematic diagram of another connecting device provided in the embodiments of this specification.

[0039] Figure 5a This is a schematic diagram of another connecting device provided in the embodiments of this specification.

[0040] Figure 5b for Figure 5a The diagram shows the disassembled connection device.

[0041] Figure 5c for Figure 5aA structural schematic diagram of the sealing component in the connecting device shown from another perspective.

[0042] Figure 5d for Figure 5c The diagram shows the usage process of the sealing component.

[0043] Figure 6 This is a schematic diagram of a blockage removal system provided in an embodiment of this specification. Detailed Implementation

[0044] As is known from the background art, in existing solutions using multiple suction devices in combination, emboli tend to accumulate at the vertical corners formed by the connection of these devices, leading to reduced suction or even blockage at the corners. This necessitates disassembling the devices to remove the emboli before continuing suction, resulting in an intermittent suction process and impacting suction efficiency. Therefore, reducing the probability of emboli retention when using multiple suction devices in combination is a problem that needs to be solved by those skilled in the art.

[0045] To address the aforementioned problems, embodiments of this specification provide a connecting device comprising a first tube and multiple second tubes. By setting the angle between the axis of the first channel inside the first tube and the axis of the second channel of the second tube to be greater than 90°, the corner angle between the first and second tubes can be reduced, thereby allowing the embolus to pass more smoothly through the first and second tubes, ensuring the continuity of the embolus removal process. Consequently, when multiple removal devices are used in combination, the probability of embolus remaining at the connection point of the multiple removal devices can be reduced, thereby reducing the risk of blockage and improving the embolus removal efficiency.

[0046] To enable those skilled in the art to more clearly understand the concept, implementation method and advantages of the technical solution in this specification, the following is a schematic description with reference to the accompanying drawings.

[0047] Reference Figure 2a and Figure 2b ,in, Figure 2a This is a schematic diagram of the structure of a connecting device provided in an embodiment of this specification. Figure 2b for Figure 2a A cross-sectional structural schematic diagram of the connecting device is shown. (Refer to reference...) Figure 2a and Figure 2b In the embodiments described in this specification, the connecting device M1 may include a first tube 11 and two second tubes, namely a second tube 12 and a second tube 13.

[0048] The first tube 11 has a first channel 11-1 inside, the first channel 11-1 connects the first end and the second end of the first tube 11 (not shown in the figure), the first end of the first tube 11 is connected to a guiding device (not shown in the figure), and the second end of the first tube 11 is connected to the second tube.

[0049] It is understandable that, in practical applications, depending on the placement and viewing angle of the first tube 11, the first end of the first tube 11 can be the upper end, lower end, left end, or right end of the first tube 11, and correspondingly, the second end of the first tube 11 can be the lower end, upper end, right end, or left end of the first tube 11. For example, in this example, taking... Figure 2a and Figure 2b The first tube 11 is shown in the position and view. The first end of the first tube 11 is the lower end of the first tube 11, and the second end of the first tube 11 is the upper end of the first tube 11.

[0050] The second tube 12 has a second channel 12-1 inside, the second channel 12-1 connects the first end and the second end of the second tube 12, and the angle α1 between the axis of the second channel 12-1 and the axis of the first channel 11-1 is greater than 90°. The first end of the second tube 12 is connected to the first tube 11, and the second end of the second tube 12 is connected to the suction device (not shown in the figure).

[0051] It is understandable that, in practical applications, depending on the placement and viewing angle of the second tube 12, the first end of the second tube 12 can be the upper end, lower end, left end, or right end of the second tube 12, and correspondingly, the second end of the second tube 12 can be the lower end, upper end, right end, or left end of the second tube 12. For example, in this example, taking... Figure 2a and Figure 2b The second tube 12 is positioned and viewed from the following angles. The first end of the second tube 12 is the lower end of the second tube 12, and the second end of the second tube 12 is the upper end of the second tube 12. The first end of the second tube 12 is connected to the second end of the first tube 11, thereby connecting the second channel 12-1 with the first channel 11-1.

[0052] The second tube 13 has a second channel 13-1 inside, which connects the first end and the second end of the second tube 13. The angle β1 between the axis of the second channel 13-1 and the axis of the first channel 11-1 is greater than 90°. The first end of the second tube 13 is connected to the first tube 11, and the second end of the second tube 13 is connected to a suction device (not shown in the figure). Specifically, in this example, using... Figure 2a and Figure 2b From the perspective shown, the first end of the second tube 13 is the lower end of the second tube 13, and the second end of the second tube 13 is the upper end of the second tube 13. The first end of the second tube 13 is connected to the second end of the first tube 11, thereby connecting the second channel 13-1 with the first channel 11-1.

[0053] In practical applications, fluid (including at least one of blood and embolism) is drawn from the blood vessel into the connecting device M1 through the guiding device. Under the action of suction, the fluid moves from the first channel 11-1 of the first tube 11 to the second channel 12-1 of the second tube 12, or from the first channel 11-1 of the first tube 11 to the second channel 13-1 of the second tube 13.

[0054] There is an angle α2 between the first pipe body 11 and the second pipe body 12. When the fluid moves from the first channel 11-1 of the first pipe body 11 to the second channel 12-1 of the second pipe body 12, the fluid's movement path will be deflected by the size of the angle α2. Since the angle α2 and the included angle α1 are complementary angles, and the included angle α1 is greater than 90°, the angle α2 is less than 90°. Compared with the prior art, the angle α2 between the first pipe body 11 and the second pipe body 12 is smaller, and the fluid (especially the emboli in the fluid) can pass through the first pipe body 11 and the second pipe body 12 more smoothly.

[0055] There is an angle β2 between the first pipe body 11 and the second pipe body 13. When the fluid moves from the first channel 11-1 of the first pipe body 11 to the second channel 13-1 of the second pipe body 13, the fluid's movement path will be deflected by the size of the angle β2. Since the angle β1 and the included angle β2 are complementary angles, and the included angle β1 is greater than 90°, the angle β2 is less than 90°. Compared with the prior art, the angle β2 between the first pipe body 11 and the second pipe body 13 is smaller, and the fluid (especially the emboli in the fluid) can pass through the first pipe body 11 and the second pipe body 13 more smoothly.

[0056] In addition, due to multiple second tubes (such as Figure 2a and Figure 2bThe second tube 12 and the second tube 13 in the connection device M1 can provide multiple path options for the fluid inside the connection device M1. Therefore, in practical applications, the movement path of the fluid inside the connection device M1 can be selectively controlled according to specific circumstances. For example, if the cavity of the suction device connected to the second tube 12 is filled with fluid, while the cavity of the suction device connected to the second tube 13 is not filled with fluid, the fluid in the connection device M1 can be controlled to move towards the second tube 13 and enter the cavity of the suction device connected to the second tube 13 by pausing the suction device connected to the second tube 12 and starting the suction device connected to the second tube 13.

[0057] As can be seen from the above, by using the connecting device in the above embodiments, and by setting the angle between the axis of the first channel inside the first tube and the axis of the second channel of the second tube to be greater than 90°, the corner angle between the first tube and the second tube can be reduced, thereby allowing the embolus to pass through the first and second tubes more smoothly. Based on this, when multiple suction devices are used in combination, the probability of the embolus remaining at the connection point of multiple suction devices can be reduced, thereby reducing the risk of embolus blockage and improving the continuity and efficiency of the embolus suction process. In addition, multiple second tubes can provide multiple path options for the fluid inside the connecting device, thereby improving the flexibility of the embolus suction process.

[0058] It should be noted that, Figure 2a and Figure 2b The two second tubes are only shown schematically, and there is no limitation on the number of second tubes. In practical applications, the connecting device may include at least two second tubes. The specific number of second tubes can be determined according to specific circumstances and requirements. The embodiments in this specification do not impose a specific limitation on the number of second tubes.

[0059] In specific implementations, the connecting device may further include: multiple switching components; the multiple switching components are respectively disposed between the second end of the corresponding second tube and the suction device. When the switching component is open, the corresponding second tube is connected to the suction device; when the switching component is closed, the connection between the corresponding second tube and the suction device is disconnected. In practical applications, one or more switching components can be opened as needed, allowing the fluid inside the connecting device to move from the connecting device to the cavity of the suction device. Furthermore, when the cavity of the suction device is full, the corresponding switching component can be closed to prevent fluid from moving into the full suction device. At this time, since other suction devices connected to the connecting device are still operating, the embolus suction process will not be interrupted. Moreover, after the corresponding switching component of a full suction device is closed, the suction device can be disassembled, the fluid emptied, and reused, allowing multiple suction devices to alternately clean the fluid, preventing multiple suction devices from being filled simultaneously.

[0060] Therefore, by opening or closing the switch component, the connection between the corresponding second tube and the suction device can be controlled to be connected or disconnected, thereby controlling the movement path of the fluid inside the connecting device, improving the controllability of the connecting device, ensuring the continuity of the embolus suction process, and improving suction efficiency.

[0061] In practical implementation, the connection relationship between the switching component and the corresponding second tube can be determined according to specific circumstances and requirements. This connection relationship can include direct connection and indirect connection. This specification does not limit the specific connection relationship between the switching component and the corresponding second tube.

[0062] In an optional example, such as Figure 3 The diagram shown is a structural schematic of another connecting device provided in an embodiment of this specification. In this example, the connecting device M2 may include a first tube 21, a second tube 22, a second tube 23, a switch component 24, a switch component 25, a first elastic hose 2a, and a first elastic hose 2b. It is understood that the specific structures of the first tube 21, the second tube 22, and the second tube 23, as well as their connection relationships and implementation principles, can be found in the aforementioned related content and will not be repeated here.

[0063] The switching component 24 is located between the second end of the second tube 22 and a suction device (not shown in the figure), and the switching component 24 is connected to the second tube 22 via a first flexible hose 2a. The switching component 25 is located between the second end of the second tube 23 and another suction device (not shown in the figure), and the switching component 25 is connected to the second tube 23 via a first flexible hose 2b.

[0064] It should be noted that in practical applications, the connection method between the first flexible hose and the second hose body, as well as the connection method between the first flexible hose and the switch component, can be determined according to specific circumstances. For example, the first flexible hose and the second hose body can be connected by adhesive bonding, and the first flexible hose and the switch component can also be connected by adhesive bonding. This specification does not impose specific limitations on the connection method between the first flexible hose and the second hose body, or the connection method between the first flexible hose and the switch component.

[0065] In another optional example, such as Figure 4The diagram shown is a structural schematic of another connecting device provided in an embodiment of this specification. In this example, the connecting device M3 may include a first tube 31, a second tube 32, a second tube 33, a switch component 34, and a switch component 35. It is understood that the specific structures of the first tube 31, the second tube 32, and the second tube 33, as well as their connection relationships and implementation principles, can be found in the aforementioned related content and will not be repeated here.

[0066] The switching component 34 is located between the second end of the second tube 32 and a suction device (not shown in the figure), and the switching component 34 is directly connected to the second tube 32. The switching component 35 is located between the second end of the second tube 33 and another suction device (not shown in the figure), and the switching component 35 is directly connected to the second tube 33.

[0067] It should be noted that in practical applications, the connection method between the switching component and the second tube can be determined according to the specific circumstances. For example, the switching component and the second tube can be connected by adhesive bonding or by threading. This specification does not impose specific restrictions on the connection method between the switching component and the second tube.

[0068] In a specific implementation, the connecting device may further include an embolic discharge port and a sealing component; the embolic discharge port is disposed on the surface of the connecting device and communicates with at least one of the first channel of the first tube and the second channel of the second tube; the sealing component is adapted to open or close the embolic discharge port.

[0069] During embolic material aspiration, the sealing component connects to the embolic material outlet, thereby closing the outlet and ensuring the sealing of the connection device. If emboli become trapped inside the connection device, the aspiration process stops, and the sealing component separates from the outlet, opening the outlet and removing the emboli. The removal of the emboli can be achieved by using a suitable retrieval instrument (such as tweezers or a hook) or by aspirating the emboli using a suction device suitable for the outlet size.

[0070] Therefore, by using the plug discharge port, the plugs that have become blocked inside the connecting device can be quickly removed, ensuring that the internal pipelines of the connecting device are unobstructed.

[0071] In specific implementation, the exact location of the embolic discharge port can be determined according to the specific structure of the connecting device. For example, the embolic discharge port is located at the connection between the first tube and the plurality of second tubes, thereby communicating with the first channel of the first tube and the second channels of the plurality of second tubes.

[0072] In specific implementation, the sealing component may include a columnar structure, and the outer diameter of the columnar structure matches the inner radial direction of the embolic discharge port, so that it can be detachably connected to the embolic discharge port. Specifically, the embolic discharge port is sealed by squeezing, rotating or other means, and opened by pulling, rotating or other means.

[0073] In practical applications, if the sealing component is detachably connected to the outlet of the embolus, it can easily be lost if improperly stored when the outlet is opened. To avoid the problem of loss of the sealing component due to improper storage, this specification provides a sealing component, including: an extension tube and a sealing sub-component. The extension tube has a hollow structure, its first end is sealed to the outlet of the embolus, and its second end is detachably connected to the first end of the sealing sub-component. The extension tube is also bound to the second end of the sealing sub-component. The outer diameter of the first end of the sealing sub-component matches the inner diameter of the second end of the extension tube, making it suitable for entering or exiting the second end of the extension tube.

[0074] Therefore, the extension tube can seal the area around the outlet of the embolus and extend the outlet of the embolus. This allows the outlet of the embolus to be closed or opened when the sealing component enters or exits the second end of the extension tube. Furthermore, since the extension tube is bound to the second end of the sealing component, the sealing component can be prevented from falling off after the extension tube and the first end of the sealing component are separated. This also eliminates the need to place the sealing component and avoids the risk of losing the sealing component.

[0075] In practice, the specific shape of the extension tube can be determined according to the specific circumstances. For example, if the embolus is removed by a retrieval instrument (such as tweezers, hooks, etc.), the extension tube can be cylindrical to facilitate removal. If the embolus is aspirated by a suction device that matches the size of the embolus discharge port, the extension tube can be bent, meaning that the axis of the part of the extension tube connected to the embolus discharge port is parallel to the axis of the embolus discharge port, and the axis of the part of the extension tube connected to the sealing component is perpendicular to the axis of the embolus discharge port. This saves space and facilitates the aspiration of the embolus.

[0076] In practical implementation, the specific binding method between the extension tube and the second end of the sealing component can be determined according to specific circumstances and needs. For example, the sealing component may further include a sleeve component and a flexible component, wherein the sleeve component is sleeved on the outside of the extension tube, and the flexible component is connected to the second ends of the sleeve component and the sealing component respectively. Thus, the binding relationship between the second end of the extension tube and the sealing component is established through the sleeve component and the flexible component.

[0077] To facilitate understanding and implementation of the above-mentioned embolism discharge port and sealing components by those skilled in the art, the following is a schematic description through specific examples.

[0078] In an optional example, such as Figures 5a to 5d ,in, Figure 5a This is a schematic diagram of another connecting device provided in an embodiment of this specification. Figure 5b for Figure 5a A schematic diagram of the disassembled connecting device shown. Figure 5c for Figure 5a A structural schematic diagram of the sealing component in the connecting device shown from another perspective; Figure 5d for Figure 5c The diagram shows the usage process of the sealing component.

[0079] Reference Figures 5a to 5d The connecting device M4 may include a first tube 41, a second tube 42, a second tube 43, a plug outlet 4A, and a sealing component 4B. It is understood that the specific structures of the first tube 41, the second tube 42, and the second tube 43, as well as their connection relationships and implementation principles, can be found in the aforementioned related content and will not be repeated here.

[0080] The embolic discharge port 4A is located at the connection between the first tube 41, the second tube 42 and the second tube 43, thereby communicating with the first channel of the first tube 41 (not shown in the figure), the second channel of the second tube 42 (not shown in the figure) and the second channel of the second tube 43 (not shown in the figure).

[0081] The sealing component 4B is adapted to open or close the plug outlet 4A. Specifically, the sealing component 4B includes: an extension tube 4B-1, a sealing sub-component 4B-2, a connecting sub-component 4B-3, and a flexible sub-component 4B-4.

[0082] The extension tube 4B-1 has a hollow structure and is bent. The first end of the extension tube 4B-1 is sealed to the outlet 4A of the plug. The second end of the extension tube 4B-1 is detachably connected to the first end of the sealing component 4B-2. The extension tube 4B-1 is also bound to the second end of the sealing component 4B-2 through the sleeve component 4B-3 and the flexible component 4B-4.

[0083] The outer diameter of the first end of the sealing component 4B-2 matches the inner diameter of the second end of the extension tube 4B-1, and is suitable for entering or exiting the second end of the extension tube 4B-1.

[0084] The sleeve 4B-3 is sleeved on the outside of the extension tube 4B-1.

[0085] The flexible sub-component 4B-4 is connected to the second end of the sleeve sub-component 4B-3 and the sealing sub-component 4B-2 respectively.

[0086] During the embolic material aspiration process, the first end of the sealing component 4B-2 enters the second end of the extension tube 4B-1, sealing the embolic material outlet 4A and isolating the embolic material outlet 4A from the external environment, thereby ensuring the sealing of the connecting device M4. When there is a blockage of embolic material W1 inside the connecting device M4, the embolic material aspiration process stops, the first end of the sealing component 4B-2 moves out of the second end of the extension tube 4B-1, and opens the embolic material outlet 4A, allowing the embolic material outlet 4A to communicate with the external environment. Thus, the embolic material W1 is aspirated out along path A by a suction device that is adapted to the size of the embolic material outlet 4A.

[0087] In practice, to further improve the sealing performance between the embolization outlet and the sealing component, the sealing component may have a Luer joint structure.

[0088] In practice, the arrangement of multiple second tubes can be determined according to specific circumstances and needs. For example, multiple second tubes can be arranged along the axial direction of the first channel. Furthermore, multiple second tubes can be arranged symmetrically or staggered along the axial direction of the first channel.

[0089] In specific implementation, the shape of the cross section of the second tube along the axial direction of the corresponding second channel can be determined according to specific circumstances and needs. For example, the shape of the cross section of the second tube along the axial direction of the corresponding second channel can be a straight line, a broken line, or an arc.

[0090] Furthermore, by taking a cross section along the axial direction of the corresponding second channel, the overall shape of the cross section of the two adjacent second tubes on both sides of the axis of the corresponding second channel can be V-shaped (including an approximate V-shaped shape) or U-shaped (including an approximate U-shaped shape).

[0091] In specific implementation, the first tube can be directly connected to the guiding device by means of adhesive bonding, threads, etc., or it can be indirectly connected to the guiding device by other media. For example, the first tube can be connected to the guiding device through a second elastic hose, wherein the first end of the first tube can be connected to the second elastic hose by adhesive bonding.

[0092] In practice, the specific structure of the first tube can be determined according to the specific circumstances and requirements. This specification does not impose specific limitations on this.

[0093] In an optional example, such as Figure 2a and 2bAs shown, the first tube 11 may further include a first connecting structure 11-2, disposed at the first end of the first tube 11, adapted to protrude toward the second end of the first tube. An external elastic component (such as a second elastic hose, a suction catheter included in the guiding device, etc.) can be sleeved on the first connecting structure 11-2. Because the first connecting structure 11-2 protrudes toward the second end of the first tube, the external elastic component will undergo a certain deformation, thereby engaging with the first connecting structure 11-2. Thus, the first connecting structure can secure the external elastic component, thereby preventing it from falling off.

[0094] In practical applications, the overall shape of the cross-section of the first connecting structure along the axial direction of the first channel can be trapezoidal, and the lower base of the trapezoidal first connecting structure faces the second end of the first tube; or, the overall shape of the cross-section of the first connecting structure along the axial direction of the first channel can be barbed.

[0095] In another optional example, such as Figure 2a and 2b As shown, the first tube 11 may further include a first column structure 11-3, disposed between the first connecting structure 11-2 and the second end of the first tube 11, wherein the maximum outer diameter of the first column structure 11-3 is smaller than the maximum outer diameter of the first connecting structure 11-2. Since the surface of the first column structure 11-3 is relatively smooth, the external elastic component can be fixed to the first column structure 11-3 by means of adhesive bonding, binding, or other methods. Therefore, the first column structure can further prevent the external elastic component from falling off.

[0096] In practice, the specific structure of the second tube can be determined according to the specific circumstances and requirements. This specification does not impose specific limitations on this.

[0097] In an optional example, such as Figure 2a and 2b As shown, since the second tube 12 and the second tube 13 have the same or similar structures, taking the second tube 12 as an example, the second tube 12 may further include: a second connecting structure 12-2, disposed at the second end of the second tube 12, adapted to protrude towards the first end of the second tube. Depending on the specific situation, the second connecting structure 12-2 can be engaged with the connection end, switch component, or first elastic hose of the suction device. Thus, through the second connecting structure, the connection end, switch component, or first elastic hose of the suction device can be secured, thereby establishing a connection with the suction device.

[0098] In practical applications, the overall shape of the cross-section of the second connecting structure along the axial direction of the second channel can be trapezoidal, and the lower base of the trapezoidal second connecting structure faces the first end of the second tube; or, the overall shape of the cross-section of the second connecting structure along the axial direction of the second channel can be barbed.

[0099] In another optional example, such as Figure 2a and 2b As shown, since the second tube 12 and the second tube 13 have the same or similar structures, taking the second tube 12 as an example, the second tube 12 may further include: a second column structure 12-3, disposed between the second connecting structure 12-2 and the first end of the second tube 12, and the maximum outer diameter of the second column structure 12-3 is smaller than the maximum outer diameter of the second connecting structure 12-2. Because the surface of the second column structure 12-3 is relatively smooth, it can be fixed by adhesive bonding, binding, or other methods.

[0100] In specific implementations, the materials of each component in the connecting device can be determined according to the specific circumstances. For example, the first tube can be made of one or more plastic materials selected from polycarbonate (PC), acrylonitrile butadiene styrene (ABS), polypropylene (PP), and polyamide (PA). The second tube can be made of one or more plastic materials selected from PC, ABS, PP, and PA.

[0101] It is understood that, depending on the specific application scenario and requirements, the connecting device provided in the embodiments of this specification can be adaptively selected and / or modified. For example, the number of some components in the connecting device can be changed; the size of some components in the connecting device can be adjusted; or some components in the connecting device can be replaced by equivalent replacements. Based on this, more implementation schemes for the connecting device can be derived, and the embodiments of this specification do not limit these derived schemes.

[0102] This specification also provides an embolic removal system. The embolic removal system is illustrated below with specific examples.

[0103] In an optional example, such as Figure 6The diagram shown is a structural schematic of an embolus removal system provided in an embodiment of this specification. The embolus removal system SYS1 may include: a guiding device 61, a suction device 62, a suction device 63, and a connecting device 64. The connecting device 64 may include a first end and multiple second ends. The first end of the connecting device 64 is connected to the guiding device 61, and the multiple second ends of the connecting device 64 are respectively connected to the suction device 62 and the suction device 63.

[0104] The connecting device 64 may include a first tube (not shown in the figure) and a plurality of second tubes (not shown in the figure). The first end of the connecting device 64 is the first end of the first tube, and the second end of the connecting device 64 is the second end of the second tube. It is understood that the specific structure and implementation principle of the connecting device 64 can be referred to the above-mentioned relevant content, and will not be repeated here.

[0105] By employing the above-described scheme and using the connecting device, the embolus can pass more smoothly through the first and second pipe bodies. This reduces the probability of the embolus becoming lodged at the connection points of multiple suction devices when used in combination, lowering the risk of blockage and improving the continuity and efficiency of the embolus removal process. Furthermore, the connecting device provides multiple path options for the fluid, thereby increasing the flexibility of the embolus removal process.

[0106] In practical implementation, the specific structure of the guiding device can be determined according to specific circumstances and needs. For example, the guiding device may include a suction catheter connected to the first tube body of the connecting device. Another example is... Figure 6 As shown, the guiding device 61 may include a suction catheter 61-1 and a hemostatic valve 61-2. The suction catheter 61-1 is connected to the first end of the hemostatic valve 61-2, and the second end of the hemostatic valve 61-2 is connected to the first tube body of the connecting device 64.

[0107] In specific implementations, the suction device can be an active device. For example, the suction device may include a peristaltic pump, a suction tube, and a cavity, wherein the suction tube passes through the peristaltic pump, and one end of the suction tube is connected to a second end of the connecting device, and the other end of the suction tube is connected to the cavity. The suction device can also be a passive device. For example, the suction device may include a suction pump.

[0108] In specific implementation, when the connecting device includes only a first tube and multiple second tubes, the first end of the connecting device is the first end of the first tube, and the second end of the connecting device is the second end of the second tube; when the connecting device includes a switch component, the first end of the connecting device is the first end of the first tube, and the second end of the connecting device is the second end of the switch component (i.e., the end of the switch component that is not connected to the second tube).

[0109] In specific implementations, the embolus removal system may further include multiple second flexible hoses, each connected to the connecting device and a corresponding suction device. For example, see reference... Figure 6 The embolus removal system SYS1 may include a second flexible hose 6a and a second flexible hose 6b. The second flexible hose 6a is connected to the connecting device 64 and the suction device 62, respectively. The second flexible hose 6b is connected to the connecting device 64 and the suction device 63, respectively. This increases the distance between the connecting device and the suction device.

[0110] In specific implementations, the embolus removal system may further include a third flexible hose, which is connected to the connecting device and the guiding device, respectively. For example, see reference... Figure 6 The embolus removal system SYS1 may include a third flexible hose 6c. The third flexible hose 6c is connected to both the connecting device 64 and the suction device 61. This increases the distance between the connecting device and the guiding device.

[0111] It should be noted that in the description of this specification, the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and "connection," etc., indicating the orientation or structural relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this specification 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. The terms in this specification can be understood according to different application scenarios. For example, "above" or "below" a second feature can include the first and second features being in direct contact, or it can include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, "above" a second feature can include the first feature being directly above or diagonally above the second feature, or simply indicating that the height of the first feature is higher than that of the second feature. "Below" a second feature can include the first feature being directly below or diagonally below the second feature, or simply indicating that the height of the first feature is less than that of the second feature. For those skilled in the art, the specific meaning of the above terms in this specification can be understood according to the specific circumstances.

[0112] Furthermore, the term "an embodiment" or "embodiment" as used in this specification refers to a specific feature, structure, or characteristic that may be included in at least one implementation of this specification. In the description of this specification, terms such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with terms such as "first" and "second" may explicitly or implicitly include one or more of that feature. Moreover, terms such as "first" and "second" are used to distinguish similar objects and are not necessarily used to describe a specific order or indicate importance. It is understood that such terms may be interchanged where appropriate so that the embodiments described herein can be implemented in orders other than those illustrated or described herein.

[0113] While the embodiments disclosed in this specification are as described above, this specification is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of this specification; therefore, the scope of protection of this specification should be determined by the scope defined in the claims.

Claims

1. A connecting device, characterized in that, include: A first tube body, multiple second tube bodies, a plug discharge port, and sealing components; wherein: The first tube body has a first channel inside, which connects a first end and a second end of the first tube body. The first end of the first tube body is connected to a guiding device, and the second end of the first tube body is connected to the second tube body. The first tube body includes a first connecting structure and a first column structure. The first connecting structure is disposed at the first end of the first tube body and is adapted to protrude toward the second end of the first tube body. The first column structure is disposed between the first connecting structure and the second end of the first tube body, and the maximum outer diameter of the first column structure is smaller than the maximum outer diameter of the first connecting structure. The second tube body has a second channel inside, which connects the first end and the second end of the second tube body. The angle between the axis of the second channel and the axis of the first channel is greater than 90°. The first end of the second tube body is connected to the first tube body, and the second end of the second tube body is connected to the suction device. The second tube body includes a second connecting structure and a second column structure. The second connecting structure is disposed at the second end of the second tube body and is adapted to protrude toward the first end of the second tube body. The second column structure is disposed between the second connecting structure and the first end of the second tube body, and the maximum outer diameter of the second column structure is smaller than the maximum outer diameter of the second connecting structure. The outlet for the embolus is located at the connection between the first tube and the second tube; The sealing component includes: an extension tube, a sealing sub-component, a connecting sub-component, and a flexible sub-component; the extension tube has a hollow structure, with its first end sealed to the outlet of the plug, and its second end detachably connected to the first end of the sealing sub-component; the outer diameter of the first end of the sealing sub-component matches the inner diameter of the second end of the extension tube, suitable for entering or exiting the second end of the extension tube; the connecting sub-component is sleeved on the outside of the extension tube; the flexible sub-component connects the second ends of the connecting sub-component and the sealing sub-component respectively; During the aspiration of the embolus, the first end of the sealing component enters the second end of the extension tube to seal the embolus outlet and isolate it from the external environment. When there is an embolus blocking the connection device, the aspiration process stops, and the first end of the sealing component moves out of the second end of the extension tube so that the embolic removal instrument can enter the connection device through the extension tube to remove the embolus.

2. The connecting device according to claim 1, characterized in that, Also includes: Multiple switching components are respectively disposed between the second end of the corresponding second tube and the suction device.

3. The connecting device according to claim 2, characterized in that, Also includes: Multiple first flexible hoses are respectively connected to the second end of the corresponding second tube body and the switch component.

4. The connecting device according to claim 1, characterized in that, The sealing component has a Luer joint structure.

5. The connecting device according to any one of claims 1 to 4, characterized in that, The overall shape of the cross-section of two adjacent second tubes along the axial direction of the corresponding second channel is V-shaped or U-shaped.

6. An embolus removal system, characterized in that, include: Guiding device; Multiple suction devices; The connecting device according to any one of claims 1 to 5, the connecting device comprising a first end and a plurality of second ends, the first end of the connecting device being connected to the guiding device, and the plurality of second ends of the connecting device being respectively connected to a plurality of the suction devices.

7. The embolus removal system according to claim 6, characterized in that, Also includes: Multiple second flexible hoses are respectively connected to the connecting device and the corresponding suction device.

Images