Multi-channel thrombus aspiration catheter

Abstract

The utility model relates to the technical field of medical instruments, and discloses a multi-channel thrombus aspiration catheter which comprises a catheter base, a catheter body is arranged on the catheter base in a penetrating mode, a breaking knife is arranged in the catheter body in a sliding mode, and an aspiration tube is arranged outside the breaking knife in a sleeved mode. When the multi-channel thrombus aspiration catheter is used, firstly, the catheter body is moved to the thrombus of a patient, the crushing knife is rotated to crush the large thrombus, meanwhile, due to the arrangement of the saline injector, saline can be conveniently flushed out through the catheter body by pressing the saline injector, and the thrombus aspiration catheter is convenient to use. The suction pipe is connected with negative pressure equipment through the threaded connector, the thrombus is pumped out through the suction pipe, saline water in the saline water injector can be replaced with treatment liquid medicine for treatment in the actual use process, and therefore the large-size and high-viscosity thrombus can be flushed into small blocks convenient to extract through the auxiliary crushing knife, and the thrombus is pumped out through the suction pipe. And the practicability of the multi-channel thrombus aspiration catheter is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely is a kind of multi-channel thrombus suction catheter. BACKGROUND

[0002] Thrombus is the solid structure that the clot in blood adheres and gradually increases in blood vessel, and the formation reason is particularly complex. Thrombus is extremely harmful, it blocks blood vessels, causes blood transport system to be paralyzed, and then causes a series of serious diseases. Arterial thrombus can cause myocardial infarction, cerebral infarction and other cardiovascular and cerebrovascular diseases, and venous thrombus can cause deep vein thrombosis (DVT) and pulmonary embolism (PE) and other serious consequences.

[0003] Generally, drug thrombolytic therapy, physical removal method, surgical operation and other methods can be taken for cleaning treatment.

[0004] (1) drug thrombolytic therapy: drug thrombolytic therapy is a method for dissolving thrombus in blood vessels by giving specific drugs. Commonly used drugs include tissue plasminogen activator, urokinase, recombinant tissue plasminogen activator and the like. These drugs activate plasminogen to plasmin in the body, and then dissolve thrombus, so as to restore the patency of blood vessels.

[0005] (2) physical removal method: physical removal method is a method for removing thrombus in blood vessels by physical means. Commonly used physical removal methods include catheter thrombectomy and mechanical thrombectomy. Catheter thrombectomy is to send drugs directly into the site of thrombus through catheter, and to decompose and remove thrombus through the device at the tip of catheter. Mechanical thrombectomy is to physically remove thrombus by using mechanical equipment, usually under the guidance of X-ray. In particular, the interventional surgery of venous thrombus is usually divided into two ways of directly removing thrombus and indirectly dissolving thrombus. Directly removing thrombus mainly crushes or aspirates thrombus through catheter and other instruments to restore the patency of blood vessels. Indirectly dissolving thrombus is to give local or systemic thrombolytic drugs to make thrombus gradually dissolve.

[0006] (3) surgical removal method: for larger thrombus, surgical operation can be an effective method. For example, for deep vein thrombosis, thrombus can be directly removed by surgery. This method is generally used when thrombus is large and located in deep position, and needs to be performed under the guidance of professional surgeon.

[0007] Suction thrombus to prevent thrombus migration or reformation, the device can be widely used in the treatment of cardiovascular and cerebrovascular diseases, deep vein thrombosis and other diseases.

[0008] The existing patent document CN221865877U proposes a thrombus suction catheter, which comprises a thrombus suction catheter body for thrombus suction operation, one end of the thrombus suction catheter body is provided with a suction pipe for puncturing an external affected part, and the other end of the thrombus suction catheter body is provided with a suction end head for thrombus suction operation, a sleeve ring is sleeved on the end of the suction pipe close to the suction end head, medical adhesive tapes are symmetrically arranged on the two side walls of the sleeve ring, one end of the medical adhesive tape is attached to the skin of the external affected part, a medical elastic band is arranged on one side wall of the sleeve ring, one end of the medical elastic band is provided with a pasting assembly, and the puncture part of the suction pipe and the external affected part is covered through the pasting assembly, the position of the suction pipe can be fixed in time, the puncture part of the suction pipe can be effectively protected, and the medical safety of the thrombus suction catheter body during thrombus suction operation is comprehensively improved.

[0009] However, when the existing patent technology CN221865877U is used, it is difficult to suck through the suction catheter when encountering large-volume and high-viscosity thrombus, thereby reducing the use effect of the suction catheter. Utility model content

[0010] The utility model discloses a multi-channel thrombus suction catheter, which is used to solve the problem that it is difficult to suck through the suction catheter when encountering large-volume and high-viscosity thrombus, thereby reducing the use effect of the suction catheter.

[0011] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a multi-channel thrombus suction catheter, comprising a pipe seat, the pipe seat is provided with a catheter main body in penetration, the inside of the catheter main body is slidably provided with a crushing knife, the crushing knife is externally sleeved with a suction pipe, and the outer end of the catheter main body is connected with a saline injector.

[0012] Preferably, one end of the suction pipe close to the pipe seat is provided with a connecting pipe, and the other end of the connecting pipe away from the pipe seat is provided with a threaded connector, so that the suction pipe can be connected with a negative pressure equipment through the connecting pipe and the threaded connector, and the thrombus can be sucked out through the suction force provided by the negative pressure equipment.

[0013] Preferably, the outer end of the saline injector is provided with a liquid level indicating area, and a plurality of scale bars are uniformly arranged on the liquid level indicating area, so that the addition of saline in the saline injector can be facilitated, and the dosage can be controlled.

[0014] Preferably, the other end of the suction pipe away from the pipe seat is provided with an inclined cutting part, and the end of the inclined cutting part is provided with a silica gel protection head, so that the suction range of the suction pipe is improved, the large thrombus can be sucked out, and the sharp end of the inclined cutting part can be prevented from pricking the patient through the arrangement of the silica gel protection head.

[0015] Preferably, the inner wall of the catheter body is provided with a metal braid one, and the inner wall of the suction pipe is provided with a metal braid two, the metal braid one can improve the moving ability of the catheter body, so that the catheter body can move in the patient's body without being bent due to resistance, and the metal braid two can improve the moving ability of the suction pipe, so that the suction pipe can move to the thrombus for extraction.

[0016] Preferably, the saline injector is a needle tube injector, which can store saline for flushing, and can be replaced by a therapeutic liquid for treatment according to actual conditions.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] 1. The multi-channel thrombus suction catheter, when in use, first moves the catheter body to the thrombus of the patient, rotates the crushing knife to break the large thrombus, and press the saline injector to flush the saline through the catheter body, so as to assist the crushing knife to flush the large and high-viscosity thrombus into small pieces for extraction, then the crushing knife is extracted, the suction pipe is connected with the negative pressure equipment through the threaded connector, the thrombus is extracted through the suction pipe, and the saline in the saline injector can be replaced by a therapeutic liquid such as a thrombolytic drug, such as streptokinase and urokinase, for direct and indirect thrombectomy comprehensive treatment, thereby improving the practicability of the multi-channel thrombus suction catheter.

[0019] 2. The multi-channel thrombus suction catheter, the inclined cutting part on the suction pipe is arranged to improve the suction range of the suction pipe, the large thrombus can be sucked away, the sharp end of the inclined cutting part can be prevented from hurting the patient by the arrangement of the silica gel protection head, the metal braid one can improve the moving ability of the catheter body, so that the catheter body can move in the patient's body without being bent due to resistance, and the metal braid two can improve the moving ability of the suction pipe, so that the suction pipe can move to the thrombus for extraction, thereby improving the use effect of the multi-channel thrombus suction catheter. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0022] Figure 2 It is a cross-sectional structure schematic view of the utility model;

[0023] Figure 3 It is a cross-sectional structure schematic view of the utility model;

[0024] Figure 4 It is a cross-sectional structure schematic view of the utility model.

[0025] In the figure: 1, pipe base;2, catheter main body;3, broken knife;4, suction tube;5, saline injector;6, connecting pipe;7, threaded connector;8, liquid level indicating area;9, scale bar;10, beveling part;11, silica gel protection head;12, metal braid one;13, metal braid two. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be apparently and completely described below with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts belong to the protection scope of the utility model.

[0027] Please refer to Figures 1-4 The utility model provides a technical scheme:

[0028] A kind of multi-channel thrombus suction catheter, including pipe base 1, the pipe base 1 is arranged through catheter main body 2, the inside of the catheter main body 2 is slidably arranged with broken knife 3, the broken knife 3 is equipped with suction tube 4, the outer end of the catheter main body 2 is connected with saline injector 5.

[0029] In the embodiment, preferably, the one end of the suction tube 4 close to the pipe base 1 is provided with connecting pipe 6, the threaded connector 7 is arranged at the end of the connecting pipe 6 away from the pipe base 1, by the arrangement of connecting pipe 6 and threaded connector 7, the suction tube 4 is connected with negative pressure equipment, and the suction force is provided by negative pressure equipment to suck out thrombus.

[0030] In the embodiment, preferably, the outer end of the saline injector 5 is provided with liquid level indicating area 8, a plurality of scale bars 9 are evenly arranged on the liquid level indicating area 8, by the arrangement of scale bar 9 on the liquid level indicating area 8, the saline injector 5 is added with saline, and the dosage is controlled.

[0031] In the embodiment, preferably, the suction pipe 4 is provided with a beveling part 10 at the end away from the pipe base 1, and a silica gel protection head 11 is arranged at the end of the beveling part 10. The beveling part 10 is arranged on the suction pipe 4 to improve the suction range of the suction pipe 4, so as to facilitate the suction of large thrombus, and the silica gel protection head 11 can avoid the sharp end of the beveling part 10 from hurting the patient.

[0032] In the embodiment, preferably, the breaking knife 3 comprises a knife head and a connecting piece. The knife head is arranged at the beveling part 10, and one end of the connecting piece is connected with the knife head and the other end extends out of the suction pipe 4, so as to facilitate the operation of the knife head to break the thrombus.

[0033] In the embodiment, preferably, the inner wall of the catheter main body 2 is provided with a metal woven mesh 12, and the inner wall of the suction pipe 4 is provided with a metal woven mesh 13. The metal woven mesh 12 is arranged to improve the moving ability of the catheter main body 2, so as to facilitate the movement of the catheter main body 2 in the patient's body and avoid the bending of the catheter main body 2 due to resistance. The metal woven mesh 13 improves the moving ability of the suction pipe 4, so as to facilitate the movement of the suction pipe 4 to the thrombus for suction.

[0034] In the embodiment, preferably, the saline injector 5 is a needle tube injector. The needle tube injector can store saline for flushing, and can also be replaced by a therapeutic liquid such as a thrombolytic drug, such as streptokinase and urokinase, for comprehensive treatment according to actual conditions.

[0035] In use, the catheter main body 2 is first moved to the thrombus of the patient, the breaking knife 3 is rotated to break the large thrombus, the saline injector 5 is arranged to facilitate the flushing of the large and high-viscosity thrombus into small pieces that are easy to extract by pressing the saline injector 5 to make the saline flow out of the catheter main body 2, the breaking knife 3 is then extracted, the suction pipe 4 is then connected with the negative pressure device through the threaded connection head 7, the thrombus is then extracted through the suction pipe 4, the beveling part 10 arranged on the suction pipe 4 improves the suction range of the suction pipe 4, so as to facilitate the suction of large thrombus, the silica gel protection head 11 can avoid the sharp end of the beveling part 10 from hurting the patient, the metal woven mesh 12 improves the moving ability of the catheter main body 2, so as to facilitate the movement of the catheter main body 2 in the patient's body and avoid the bending of the catheter main body 2 due to resistance, the metal woven mesh 13 improves the moving ability of the suction pipe 4, so as to facilitate the movement of the suction pipe 4 to the thrombus for suction, and the saline in the saline injector 5 can be replaced by a therapeutic liquid such as a thrombolytic drug, such as streptokinase and urokinase, for comprehensive treatment according to actual conditions.

[0036] Finally, it should be noted that the above is merely to illustrate the technical solutions of the present application, and is not a limitation on the scope of protection of the present application, and simple modifications or equivalent replacements of the technical solutions of the present application by those skilled in the art do not deviate from the essence and scope of the technical solutions of the present application.

Claims

1. A multi-channel thrombus aspiration catheter comprising a tube hub (1), characterized in that: The pipe base (1) is provided with a catheter body (2), the inside of the catheter body (2) is slidably provided with a crushing knife (3), the crushing knife (3) is provided with a suction pipe (4), and the outer end of the catheter body (2) is connected with a saline injector (5).

2. A multi-channel thrombus aspiration catheter according to claim 1, characterized in that: The suction pipe (4) is provided with a connecting pipe (6) at one end close to the pipe base (1), and the connecting pipe (6) is provided with a threaded connector (7) at the end away from the pipe base (1).

3. A multi-channel thrombus aspiration catheter according to claim 2, wherein: The outer end of the saline injector (5) is provided with a liquid level indicating area (8), and a plurality of scale bars (9) are uniformly arranged on the liquid level indicating area (8).

4. A multi-channel thrombus aspiration catheter according to claim 3, wherein: The end of the suction pipe (4) away from the pipe base (1) is provided with a beveling part (10), and the end of the beveling part (10) is provided with a silica gel protection head (11).

5. A multi-channel thrombus aspiration catheter according to claim 4, wherein: The inner wall of the catheter body (2) is provided with a metal woven mesh one (12), and the inner wall of the suction pipe (4) is provided with a metal woven mesh two (13).

6. The multi-channel thrombus aspiration catheter of claim 1, wherein: The saline injector (5) is a needle tube injector.

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