Thrombus removal treatment device

Abstract

The utility model relates to the technical field of medical treatment, and particularly discloses a thrombus removal treatment device, which comprises a removal catheter, a negative pressure unit, a negative pressure unit and a control unit, the partition catheter is provided with two air bags used for forming a treatment cavity in a blood vessel, and the partition catheter is provided with air injection pipes used for being communicated with the two air bags respectively. In some embodiments, the device further comprises a cleaning part used for breaking thrombus and a driving part used for driving the cleaning part to move, and the diameter of the cleaning part can be changed in the treatment cavity. According to the utility model, the center of the cleaning piece wound on the surface of the balloon catheter can be expanded outwards by fitting the cleaning catheter with the contact ear on the adjusting wire and pulling back the adjusting wire, so that the diameter of the cleaning piece is changed, and then the cleaning piece with the changed diameter passes through thrombus under the pushing of the cleaning catheter, thereby achieving the effect of destroying the thrombus; and in addition, the damaged thrombus can be effectively sucked away when the negative pressure generated by the catheter through the negative pressure unit is removed.

Description

Technical Field

[0001] The utility model relates to the technical field of medical treatment, in particular to a thrombus removal treatment device. Background Art

[0002] Thrombosis is a common vascular disease. Existing thrombus removal catheters generally use a negative pressure structure for direct extraction. Direct extraction can effectively and quickly remove thrombi, but negative pressure extraction is not effective for removing stubborn thrombi. Therefore, to address the shortcomings of existing negative pressure thrombus removal devices, we provide a thrombus removal treatment device. Utility Model Content

[0003] In view of the deficiencies in the prior art, the present invention provides a thrombus removal treatment device, which has the advantages of destroying thrombi and facilitating negative pressure extraction, thereby solving the problems in the background technology.

[0004] The thrombus removal treatment device of the present invention comprises:

[0005] a cleaning catheter, the cleaning catheter being connectable to the negative pressure unit;

[0006] The partition catheter is provided with two air bags for forming a treatment cavity inside a blood vessel, and the partition catheter is provided with an air injection tube for respectively communicating with the two air bags.

[0007] In some embodiments, the partition catheter includes a balloon catheter and an outer tube, the outer tube is sheathed on the balloon catheter, and the partition catheter is inserted between the outer tube and the balloon catheter;

[0008] The two air bags on the partition catheter and the corresponding air injection tubes are respectively arranged on the ends of the balloon catheter and the outer tube.

[0009] In some embodiments, the invention further comprises a cleaning member for destroying thrombus and a driving member for driving the cleaning member to move, wherein the cleaning member can change the diameter in the treatment cavity.

[0010] In some embodiments, the cleaning piece includes a cleaning wire made of elastic material and an adjusting wire for changing the diameter of the cleaning wire. The cleaning wire is spirally wound on the surface of the balloon catheter, and the adjusting wire is arranged between the surface of the balloon catheter and the cleaning wire.

[0011] In some embodiments, the cleaning piece includes a cleaning wire made of elastic material and a double-headed telescopic rod for changing the diameter of the cleaning wire. The double-headed telescopic rod is installed between the two cleaning wires, and the two ends of the double-headed telescopic rod are respectively installed at one end of the two cleaning wires away from the mounting portion of the double-headed telescopic rod.

[0012] In some embodiments, both ends of the cleaning wire are provided with a sliding ring sleeved on the surface of the balloon catheter, and at least two contact ears are symmetrically provided on the surface of the sliding ring close to the driving member;

[0013] The driving member is a cleaning catheter.

[0014] In some embodiments, there are multiple cleaning wires, each of which is located between two sliding rings along the balloon catheter. An elastic cleaning ring is provided on each cleaning wire.

[0015] In some embodiments, a constant pressure unit is further included, wherein the constant pressure unit includes a constant pressure tube connected to the treatment cavity, and the constant pressure tube is connected to a constant pressure liquid.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. The utility model can make the center of the cleaning piece wrapped around the surface of the balloon catheter expand outward by fitting the contact ear on the cleaning catheter with the adjusting wire and pulling back the adjusting wire, thereby changing the diameter of the cleaning piece. Then, under the push of the cleaning catheter, the cleaning piece with changed diameter passes through the thrombus, thereby achieving the effect of destroying the thrombus; and the negative pressure generated by the negative pressure unit in the cleaning catheter can effectively absorb the destroyed thrombus.

[0018] 2. The diameter of the cleaning piece of the utility model can be changed. According to the type of thrombus, the thrombus can be broken multiple times by expanding from the center of the blood vessel in sequence. The multiple breaking can miniaturize the thrombus, making it easier to clear the thrombus through the clearance between the cleaning catheter, the sliding ring and the balloon catheter.

[0019] 3. For stubborn thrombus, the utility model can also individually knock on the thrombus by loosening the adjustment wire and coordinating the elastic reset of the cleaning wire, thereby further clearing the thrombus. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0021] Figure 1 This is a schematic diagram of the structure of a cleaning wire spirally wound on a balloon catheter in Example 1 of the present utility model;

[0022] Figure 2 This is a schematic structural diagram of a cleaning wire spirally wound on a balloon catheter after its diameter changes according to Example 1 of the present invention;

[0023] Figure 3 This is a schematic side cross-sectional view of a cleaning wire spirally wound on a balloon catheter in accordance with a first embodiment of the present invention;

[0024] Figure 4 This is a schematic structural diagram of a cleaning wire spirally arranged along a balloon catheter in accordance with a first embodiment of the present invention;

[0025] Figure 5 This is a structural diagram of the second embodiment of the present utility model.

[0026] In the figure, 1, cleaning catheter; 2, outer tube; 3, balloon catheter; 4, airbag; 5, cleaning piece; 51, cleaning wire; 52, sliding ring; 53, contact ear; 54, adjusting wire; 55, double-headed telescopic rod; 56, cleaning ring. DETAILED DESCRIPTION

[0027] The following diagrams illustrate various embodiments of the present invention. For clarity, many physical details will be included in the following description. However, it should be understood that these physical details are not intended to limit the present invention. In other words, in some embodiments of the present invention, these physical details are not essential. Furthermore, to simplify the drawings, some commonly used structures and components are depicted in simplified schematic form.

[0028] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0029] Example 1:

[0030] See also Figure 1 - Figure 3 The thrombus removal treatment device of the present invention comprises:

[0031] The cleaning catheter 1 can be connected to the negative pressure unit;

[0032] The partition catheter is provided with two air bags 4 for forming a treatment cavity inside the blood vessel, and the partition catheter is provided with an air injection tube for communicating with the two air bags 4 respectively.

[0033] The partition catheter includes a balloon catheter 3 and an outer tube 2. The outer tube 2 is sleeved on the balloon catheter 3, and the partition catheter is inserted between the outer tube 2 and the balloon catheter 3.

[0034] The two air bags 4 on the partition catheter and the corresponding gas injection tubes are respectively arranged at the ends of the balloon catheter 3 and the outer tube 2. The gas injection tubes can be arranged inside the balloon catheter 3 and the outer tube 2, or in channels opened on the inner walls of the balloon catheter 2 and the outer tube 3.

[0035] The device further comprises a cleaning member 5 for destroying thrombus and a driving member for driving the cleaning member 5 to move. The cleaning member 5 can change its diameter in the treatment cavity.

[0036] The cleaning member 5 includes a cleaning wire 51 made of elastic material and an adjusting wire 54 for changing the diameter of the cleaning wire 51. The cleaning wire 51 is spirally wound on the surface of the balloon catheter 3, and the adjusting wire 54 is arranged between the surface of the balloon catheter 3 and the cleaning wire 51.

[0037] Both ends of the cleaning wire 51 are provided with sliding rings 52 sleeved on the surface of the balloon catheter 3, and at least two contact ears 53 are symmetrically provided on the surface of the sliding ring 52 close to the driving member.

[0038] In this example:

[0039] By fitting the cleaning catheter 1 with the contact ear 53 on the adjusting wire 54 and pulling back the adjusting wire 54, the center of the cleaning piece 5 wrapped around the surface of the balloon catheter 3 can be expanded outward, thereby changing the diameter of the cleaning piece 5. Then, under the push of the cleaning catheter 1, the cleaning piece 5 with the changed diameter passes through the thrombus, thereby achieving the effect of destroying the thrombus.

[0040] The negative pressure generated by the negative pressure unit in the cleaning catheter 1 can effectively absorb the destroyed thrombus. Since the diameter of the cleaning member 5 can be changed, the thrombus can be destroyed multiple times by expanding from the center of the blood vessel in accordance with the type of thrombus. The multiple destruction can miniaturize the thrombus, making it easier to remove the thrombus through the gap between the cleaning catheter 1, the sliding ring 52 and the balloon catheter 3.

[0041] While the cleaning tube 1 pushes the cleaning member 5, the adjusting wire 54 needs to be loosened synchronously so that the distance between the two ends of the cleaning member 5 is constant, thereby preventing the cleaning member from changing its diameter under the push of the cleaning tube 1.

[0042] For stubborn thrombi, the loosening of the regulating wire 54 and the elastic reset of the cleaning wire 51 can be used to individually knock on the thrombi, thereby further clearing the thrombi.

[0043] The negative pressure unit can be a negative pressure air pump or other structure capable of generating negative pressure.

[0044] See also Figure 4In the above embodiment, the cleaning member 5 can also be composed of a plurality of cleaning wires 51, and a plurality of cleaning wires 51 are respectively arranged between the two sliding rings 52 along the balloon catheter 3, and an elastic cleaning ring 56 is provided on the cleaning wire 51;

[0045] The cleaning ring 56 may be a ring-shaped object made of a material having the ability to expand and retract.

[0046] Example 2:

[0047] See also Figure 5 As a further improvement of Example 1, the difference from Example 1 is that the cleaning piece 5 includes a cleaning wire 51 made of elastic material, and a double-headed telescopic rod 55 for changing the diameter of the cleaning wire 51. The double-headed telescopic rod 55 is installed between the two cleaning wires 51, and the two ends of the double-headed telescopic rod 55 are respectively installed at one end of the two cleaning wires 51 away from the installation portion of the double-headed telescopic rod 55.

[0048] Both ends of the cleaning wire 51 are provided with sliding rings 52 sleeved on the surface of the balloon catheter 3, and at least two contact ears 53 are symmetrically provided on the surface of the sliding ring 52 close to the driving member.

[0049] In this example:

[0050] The structure of changing the diameter of the cleaning piece 5 so that the cleaning wire 51 is changed into a double-headed telescopic rod 55 makes the diameter change of the cleaning piece 5 more precise, which is suitable for removing thrombi with longer catheters.

[0051] In the first and second embodiments, the driving member may be a driving wire or a driving tube between the cleaning catheter 1 and the balloon catheter 3 ; or the cleaning catheter 1 may be directly used as the driving member.

[0052] In the above-mentioned embodiment 1 and embodiment 2, a constant pressure unit is further included, which includes a constant pressure tube connected to the treatment cavity, the constant pressure tube is connected to a constant pressure liquid, wherein the constant pressure tube is connected to the clearance cavity, and the constant pressure tube can be a pipe arranged inside the balloon catheter 3, between the balloon catheter 3 and the clearance tube, or the balloon catheter 3 can be directly hollowed to serve as the constant pressure tube;

[0053] The constant pressure tube can be used to inject drugs into the treatment cavity to dissolve thrombus, or inject other liquids to ensure that the pressure in the treatment cavity is constant when the cleaning catheter 1 is suctioned.

[0054] The above is merely an embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements based on the spirit and principles of the present invention are intended to be within the scope of the claims of the present invention.

Claims

1. A thrombus removal treatment device, characterized in that: include: A cleaning catheter (1), wherein the cleaning catheter (1) can be connected to a negative pressure unit; A partition catheter, wherein the partition catheter is provided with two air bags (4) for forming a treatment cavity inside a blood vessel, and the partition catheter is provided with an air injection tube for respectively communicating with the two air bags (4); The partition catheter comprises a balloon catheter (3) and an outer tube (2), wherein the outer tube (2) is sleeved on the balloon catheter (3), and the partition catheter is inserted between the outer tube (2) and the balloon catheter (3); The two air bags (4) on the partition catheter and the corresponding air injection tubes are respectively arranged at the ends of the balloon catheter (3) and the outer tube (2); It also includes a cleaning member (5) for destroying thrombus, and a driving member for driving the cleaning member (5) to move, wherein the cleaning member (5) can change its diameter in the treatment cavity; The cleaning member (5) comprises a cleaning wire (51) made of elastic material and an adjusting wire (54) for changing the diameter of the cleaning wire (51); the cleaning wire (51) is spirally wound on the surface of the balloon catheter (3); and the adjusting wire (54) is arranged between the surface of the balloon catheter (3) and the cleaning wire (51).

2. The thrombus removal treatment device according to claim 1, characterized in that: The invention also includes a double-ended telescopic rod (55) for changing the diameter of the cleaning wire (51), wherein the double-ended telescopic rod (55) is installed between the two cleaning wires (51), and the two ends of the double-ended telescopic rod (55) are respectively installed at one end of the two cleaning wires (51) away from the installation portion of the double-ended telescopic rod (55).

3. A thrombus removal treatment device according to claim 1 or 2, characterized in that: Both ends of the cleaning wire (51) are provided with sliding rings (52) sleeved on the surface of the balloon catheter (3), and at least two contact ears (53) are symmetrically provided on the surface of the sliding ring (52) close to the driving member; The driving member is a cleaning catheter (1).

4. The thrombus removal treatment device according to claim 3, characterized in that: There are multiple cleaning threads (51), and the multiple cleaning threads (51) are respectively arranged between two sliding rings (52) along the balloon catheter (3). An elastic cleaning ring (56) is provided on the cleaning thread (51).

5. The thrombus removal treatment device according to claim 3, characterized in that: It also includes a constant pressure unit, which includes a constant pressure tube connected to the treatment cavity, and the constant pressure tube is connected to a constant pressure liquid.

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