Left heart decompression drain and left heart decompression system

Abstract

The utility model provides a kind of left heart decompression drainage tube and left heart decompression system, left heart decompression drainage tube includes: adjustable bending sheath tube, adjustable bending sheath tube includes handle, catheter and sheath body, the first end of sheath body is connected with handle;Sheath body is equipped with instrument access channel, the side wall of the second end of sheath body is equipped with the drainage hole being communicated with instrument access channel, instrument access channel is formed into drainage channel, the first end of catheter is communicated with drainage channel, the second end of catheter is used to and drainage circuit is communicated.The utility model discloses left heart decompression drainage tube, by the drainage hole being communicated with instrument access channel in the side wall of the second end of sheath body is arranged, and the second end of catheter is configured to be able to with drainage circuit communication, so that adjustable bending sheath tube can be directly used as drainage tube in left heart decompression drainage operation, to avoid the cumbersome operation of additional use separate drainage tube in the process of operation, to simplify operation procedure, reduce operation step and time.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to a left ventricular decompression drainage tube and a left ventricular decompression system. Background Technology

[0002] In ECMO (extracorporeal membrane oxygenation) therapy, left ventricular unloading is a crucial management strategy. Current technology lacks a specially designed sheath to meet the needs of left ventricular drainage. Currently, a standard sheath is typically used to deliver the drainage tube to the target location to achieve left ventricular decompression. While this method achieves the goal of decompression, it is surgically complex, increasing the number of steps and time required. Utility Model Content

[0003] This invention provides a new technical solution for a left ventricular decompression drainage tube, which can at least solve the technical problem of the complexity of existing left ventricular decompression surgery procedures.

[0004] This invention also provides a new technical solution for a left ventricular decompression system.

[0005] According to a first aspect of the present invention, a left ventricular decompression drainage tube is provided, comprising: an adjustable bend sheath, the adjustable bend sheath comprising a handle, a catheter, and a sheath body, a first end of the sheath body being connected to the handle; the sheath body having an instrument access channel, and a drainage hole communicating with the instrument access channel being provided on the side wall of the second end of the sheath body, the instrument access channel forming a drainage channel, the first end of the catheter communicating with the drainage channel, and the second end of the catheter being used to communicate with a drainage circuit.

[0006] Optionally, the sidewall of the second end of the sheath body is provided with a plurality of drainage holes, and the plurality of drainage holes are distributed along the circumference and / or axial direction of the sheath body.

[0007] Optionally, the handle is provided with an instrument inlet, the instrument inlet is provided with a hemostatic valve, and the instrument access channel is connected to the instrument inlet.

[0008] Optionally, the left ventricular decompression drainage tube further includes a control valve, which is located at the second end of the catheter, with the first end of the control valve connected to the catheter and the second end of the control valve connected to the drainage circuit.

[0009] Optionally, the control valve is configured as a three-way valve, with the third end of the control valve used to connect to the infusion line.

[0010] Optionally, the second end of the control valve is provided with a first Luer connector, which is used for threaded connection with the drainage circuit.

[0011] Optionally, the third end of the control valve is provided with a second Luer connector, which is used for threaded connection with the infusion line.

[0012] Optionally, the sheath body is provided with a plurality of scale markings distributed along its length.

[0013] Optionally, the outer side of the sheath body is provided with a hydrophilic coating.

[0014] According to a second aspect of the present invention, a left ventricular decompression system is provided, comprising the left ventricular decompression drainage tube described in any of the preceding claims.

[0015] According to the present invention, the left ventricular decompression drainage tube has a drainage hole for the instrument access channel provided on the side wall of the second end of the sheath body, and the second end of the catheter is configured to be connected to the drainage circuit. This allows the adjustable sheath to be used directly as a drainage tube in left ventricular decompression drainage surgery, thereby avoiding the cumbersome operation of using a separate drainage tube during the operation, simplifying the surgical procedure and reducing the number of surgical steps and time.

[0016] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0018] Figure 1 This is a schematic diagram of the structure of a left ventricular decompression drainage tube according to an embodiment of the present invention;

[0019] Figure 2 yes Figure 1 Enlarged view of the structure at point A in the middle circle.

[0020] Figure Labels

[0021] 100. Left ventricular decompression drainage tube;

[0022] 10. Handle; 11. Hemostatic valve; 12. Adjustment unit;

[0023] 20. Catheter;

[0024] 30. Sheath body; 31. Drainage hole; 32. Scale markings;

[0025] 40. Control valve; 41. First Luer connector; 42. Second Luer connector. Detailed Implementation

[0026] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0027] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0028] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0029] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0031] The left ventricular decompression drainage tube 100 according to an embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

[0032] like Figure 1 and Figure 2 As shown, the left ventricular decompression drainage tube 100 according to an embodiment of the present invention includes: an adjustable bendable sheath.

[0033] Specifically, the adjustable bendable sheath includes a handle 10, a catheter 20, and a sheath body 30. The first end of the sheath body 30 is connected to the handle 10. The sheath body 30 is provided with an instrument access channel. The side wall of the second end of the sheath body 30 is provided with a drainage hole 31 that communicates with the instrument access channel. The instrument access channel forms a drainage channel. The first end of the catheter 20 communicates with the drainage channel, and the second end of the catheter 20 is used to communicate with a drainage circuit.

[0034] In other words, such as Figure 1 and Figure 2As shown, the left ventricular decompression drainage tube 100 according to an embodiment of this utility model is composed of an adjustable bend sheath. This adjustable bend sheath mainly includes a handle 10, a catheter 20, and a sheath body 30. Both the catheter 20 and the sheath body 30 are mounted on the handle 10. Specifically, the sheath body 30 has an instrument access channel. The first end of the sheath body 30 is fixedly connected to the handle 10, and the first end of the catheter 20 communicates with the instrument access channel. The side wall of the second end of the sheath body 30 is provided with at least one drainage hole 31. For example, the adjustable bend section of the second end of the sheath body 30 is provided with a drainage hole 31, which communicates with the instrument access channel. This allows the instrument access channel to be used not only for the passage of interventional devices but also as a drainage channel. In use, the second end of the catheter 20 can communicate with the drainage circuit, thereby achieving the function of left ventricular drainage through the adjustable bend sheath, without the need for an additional drainage tube.

[0035] Therefore, according to the left ventricular decompression drainage tube 100 provided in this embodiment, by providing a drainage hole 31 for the instrument access channel on the side wall of the second end of the sheath body 30, and configuring the second end of the catheter 20 to be able to communicate with the drainage circuit, the adjustable bending sheath can be used directly as a drainage tube in the left ventricular decompression drainage surgery, thereby avoiding the cumbersome operation of using a separate drainage tube during the operation, and thus simplifying the surgical procedure and reducing the number of surgical steps and time.

[0036] According to some embodiments of the present invention, a rotatable adjustment part 12 is provided on one side of the handle 10, and the curvature of the second end of the sheath body 30 can be adjusted by rotating the adjustment part 12.

[0037] According to one embodiment of the present invention, the sidewall of the second end of the sheath body 30 is provided with a plurality of drainage holes 31, and the plurality of drainage holes 31 are distributed along the circumference and / or axial direction of the sheath body 30.

[0038] In other words, such as Figure 1 and Figure 2 As shown, the sheath body 30 is provided with a plurality of drainage holes 31, for example, 2, 3 or 4. Some of the drainage holes 31 can be distributed circumferentially along the sheath body 30, and some of the drainage holes 31 can be distributed axially along the sheath.

[0039] In this embodiment, the multiple drainage holes 31 can disperse the drainage points, thereby reducing the pressure at a single inlet and thus reducing the risk of the drainage tube being blocked, while effectively ensuring the drainage effect.

[0040] In some specific embodiments of this utility model, the handle 10 is provided with an instrument inlet, the instrument inlet is provided with a hemostatic valve 11, and the instrument access channel is connected to the instrument inlet.

[0041] Specifically, such as Figure 1 As shown, the handle 10 has a three-way tube with three ports, where the first and second ports are arranged opposite each other, and the third port is configured as a bypass port. One end of the instrument access channel is connected to the first port of the three-way tube, while the first end of the catheter 20 is connected to the third port of the three-way tube. The third port of the three-way tube is configured as the instrument inlet, where a hemostatic valve 11 is fixedly installed. During use, the interventional instrument passes through the hemostatic valve 11 into the instrument access channel. The sealing element of the hemostatic valve 11 automatically adapts to the outer diameter of the instrument, maintaining a sealed state, thereby effectively preventing blood from flowing out of the instrument inlet. When the interventional instrument is withdrawn, the sealing element of the hemostatic valve 11 automatically closes, thereby preventing blood from flowing out of the instrument inlet without the need for other auxiliary tools.

[0042] According to one embodiment of the present invention, the left ventricular decompression drainage tube 100 further includes: a control valve 40, the control valve 40 being disposed at the second end of the catheter 20, the first end of the control valve 40 being connected to the catheter 20, and the second end of the control valve 40 being used to connect to the drainage circuit.

[0043] like Figure 1 As shown, in this embodiment, a control valve 40 is fixedly connected to the second end of the catheter 20. The control valve 40 can control the opening and closing of the second end of the catheter 20, and can also control the drainage flow rate according to actual needs, thereby better meeting clinical needs and ensuring the treatment effect of patients.

[0044] In some specific embodiments of this utility model, the control valve 40 is a two-way valve. The first end of the control valve 40 is connected to the conduit 20, and the second end of the control valve 40 is used to connect with the drainage circuit.

[0045] According to one embodiment of the present invention, the control valve 40 is configured as a three-way valve, and the third end of the control valve 40 is used to connect with the infusion pipeline.

[0046] like Figure 1 As shown, in this embodiment, the three-way valve can control the connection between its first port and the second or third port, which can simultaneously meet the needs of drainage and drug infusion, effectively improving the applicability of the left ventricular decompression drainage tube 100, and without the need for additional pipelines, simplifying the structure and improving the ease of operation.

[0047] In some specific embodiments of this utility model, the second end of the control valve 40 is provided with a first Luer connector 41, which is used to connect with the drainage circuit, thereby realizing the sealed connection between the control valve 40 and the drainage circuit. The structure is simple, easy to disassemble and assemble, and can ensure good sealing at the connection.

[0048] According to one embodiment of the present invention, the third end of the control valve 40 is provided with a second Luer connector 42, which is used to connect with the infusion pipeline, thereby realizing the sealed connection between the control valve 40 and the drainage circuit. The structure is simple, easy to disassemble and assemble, and can ensure good sealing at the connection.

[0049] like Figure 1 As shown, in some specific embodiments of this utility model, the sheath body 30 is provided with a plurality of scale markings 32 distributed along its length. In actual operation, medical personnel can accurately and intuitively determine the depth of insertion of the sheath body 30 into the body based on the scale markings 32, thereby ensuring the accuracy and safety of the surgical or treatment process.

[0050] According to one embodiment of the present invention, the outer side of the sheath body 30 is provided with a hydrophilic coating, which can be a polyvinylpyrrolidone (PVP) layer. The hydrophilic coating can reduce the friction between the sheath body 30 and human tissue, thereby effectively reducing damage to human tissue.

[0051] Other components of the adjustable bending sheath according to embodiments of the present invention, such as the structure for adjusting the bending of the sheath body 30, and its operation, are known to those skilled in the art and will not be described in detail here.

[0052] Therefore, according to the left ventricular decompression drainage tube 100 provided in this embodiment, by providing a drainage hole 31 for the instrument access channel on the side wall of the second end of the sheath body 30, and configuring the second end of the catheter 20 to be able to communicate with the drainage circuit, the adjustable bending sheath can be used directly as a drainage tube in the left ventricular decompression drainage surgery, thereby avoiding the cumbersome operation of using a separate drainage tube during the operation, and thus simplifying the surgical procedure and reducing the number of surgical steps and time.

[0053] An embodiment of this utility model also provides a left ventricular decompression system, including the left ventricular pressurization drainage tube described in any of the above embodiments. Since the left ventricular decompression drainage tube 100 according to the embodiments of this utility model has the above-mentioned technical effects, the left ventricular decompression system according to the embodiments of this utility model also has corresponding technical effects, which will not be repeated in this embodiment.

[0054] In some specific embodiments of this utility model, the left ventricular decompression system includes an Impella device or an ECMO device, and the second end of the catheter 20 is connected to the drainage circuit of the Impella device or ECMO device.

[0055] The above embodiments mainly describe the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be elaborated here.

[0056] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A left ventricular decompression drainage tube, characterized in that, include: An adjustable bendable sheath, comprising a handle (10), a conduit (20), and a sheath body (30), wherein the first end of the sheath body (30) is connected to the handle (10); The sheath body (30) is provided with an instrument access channel, and the side wall of the second end of the sheath body (30) is provided with a drainage hole (31) communicating with the instrument access channel. The instrument access channel is formed as a drainage channel. The first end of the catheter (20) is connected to the drainage channel, and the second end of the catheter (20) is used to connect to the drainage circuit.

2. The left ventricular decompression drainage tube according to claim 1, characterized in that, The second end of the sheath body (30) is provided with a plurality of drainage holes (31), which are distributed along the circumference and / or axial direction of the sheath body (30).

3. The left ventricular decompression drainage tube according to claim 1, characterized in that, The handle (10) is provided with an instrument inlet, the instrument inlet is provided with a hemostatic valve (11), and the instrument access channel is connected to the instrument inlet.

4. The left ventricular decompression drainage tube according to claim 1, characterized in that, Also includes: A control valve (40) is provided at the second end of the conduit (20). The first end of the control valve (40) is connected to the conduit (20), and the second end of the control valve (40) is used to connect to the drainage circuit.

5. The left ventricular decompression drainage tube according to claim 4, characterized in that, The control valve (40) is configured as a three-way valve, and the third end of the control valve (40) is used to connect with the infusion pipeline.

6. The left ventricular decompression drainage tube according to claim 4, characterized in that, The second end of the control valve (40) is provided with a first Luer connector (41), which is used for threaded connection with the drainage circuit.

7. The left ventricular decompression drainage tube according to claim 5, characterized in that, The third end of the control valve (40) is provided with a second Luer connector (42), which is used for threaded connection with the infusion pipeline.

8. The left ventricular decompression drainage tube according to claim 1, characterized in that, The sheath body (30) is provided with a plurality of scale markings (32) distributed along its length.

9. The left ventricular decompression drainage tube according to claim 1, characterized in that, The outer side of the sheath body (30) is provided with a hydrophilic coating.

10. A left ventricular decompression system, characterized in that, Includes the left ventricular decompression drainage tube as described in any one of claims 1 to 9.

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