Novel thrombus removing instrument

Abstract

The utility model relates to a novel thrombus removing instrument, which belongs to the technical field of thrombus removing instruments and comprises a hollow transition tube body and a hollow catheter seat, the transition tube body is communicated with the catheter seat through a second Luer joint, and a suction tube is arranged at one end, far away from the transition tube body, of the catheter seat; the thrombus removing instrument further comprises an operation guide wire, the operation guide wire penetrates through the transition tube body, the catheter base and a suction tube, one end of the operation guide wire extends out of the transition tube body to be connected with an operation handle, and the other end of the operation guide wire extends out of the suction tube to be connected with the head end. A circulating groove is formed in the joint of the operation guide wire and the head end; a first Luer taper is arranged on the side wall of the transition pipe body, and the first Luer taper is communicated with the interior of the transition pipe body.

Description

Technical Field

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

[0002] In the prior art, for example, the patent with application number CN201520879961.4 discloses a thrombus aspiration device, including a catheter body and a surgical guide wire for removing thrombi and plaques, the catheter body including a suction cavity and a filling cavity, the surgical guide wire is movably arranged in the suction cavity, the surgical guide wire includes a guide wire body and a spiral cutting portion arranged at one end of the guide wire body, the spiral cutting portion extends out of the suction cavity during treatment, the axial section of the spiral cutting portion is "conical", and the other end of the guide wire body is provided with a guide wire handle for surgical operation; a balloon for blocking blood flow is arranged on the outer surface of the catheter body, the filling cavity is connected to the balloon, and a traction tube for the guide wire to pass through is also arranged on the catheter body. The thrombus aspiration device provided by the utility model can not only prevent thrombi and plaque fragments from flowing to the distal end of the blood vessel with the blood flow, but also can dredge the occluded blood vessels, reduce the use of instruments, reduce risks, and improve the success rate of the operation.

[0003] However, the structural design of this patent is complex, which increases the production cost and makes the production process more difficult. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a new type of thrombus removal device to solve the problems raised in the background technology.

[0005] In order to achieve the above-mentioned utility model object, the utility model provides a novel thrombus removal device, comprising a hollow transition tube body and a hollow catheter seat, wherein the transition tube body is connected to the catheter seat via a second Luer connector, and a suction tube is provided at one end of the catheter seat away from the transition tube body;

[0006] The thrombus removal device also includes an operating guide wire, which passes through the transition tube body, the catheter seat, and the suction tube, one end of the operating guide wire extends out of the transition tube body and is connected to the operating handle, and the other end of the operating guide wire extends out of the suction tube and is connected to the head end;

[0007] A flow groove is provided at the connection between the operation guide wire and the head end;

[0008] A first Luer connector is disposed on the side wall of the transition tube body, and the first Luer connector is communicated with the interior of the transition tube body.

[0009] Furthermore, the first Luer connector and the second Luer connector are both 6% Luer connectors.

[0010] Furthermore, the shape of the head end is spiral.

[0011] Furthermore, the material of the head end is cemented carbide.

[0012] Furthermore, the suction tube is made of pebax or nylon.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The shape of the head end is a spiral blade, which can not only crush the thrombus, but also will not cause the narrowing of the suction port and reduce the suction efficiency. The rotation and movement of the spiral blade can crush the thrombus while driving the crushed thrombus into the inner cavity of the suction tube, so that the crushed thrombus can be drawn out of the body along the circulation groove, making the thrombus aspiration easier and more complete;

[0015] 2. The structural design is simple and does not require a special blocking device. Most of the crushed thrombi can be captured only through the spiral blade structure at the head end, preventing the thrombi from flowing to the distal blood vessels and causing secondary blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model;

[0017] Figure 2 for Figure 2 A is a schematic diagram of the enlarged structure of the middle part;

[0018] Figure 3 This is a schematic diagram of the main structure of an embodiment of the utility model;

[0019] Figure 4 It is a schematic cross-sectional structural diagram of an embodiment of the utility model. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described in conjunction with the drawings of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The embodiment of the utility model is described below in conjunction with the drawings.

[0021] like Figure 1-4 As shown, the novel thrombus removal device comprises a hollow transition tube body 3 and a hollow catheter seat 5. The transition tube body 3 is connected to the catheter seat 5 via a second Luer connector 4. An end of the catheter seat 5 away from the transition tube body 3 is provided with a suction tube 6.

[0022] The embolism removal device further includes an operating guide wire 7, which passes through the transition tube body 3, the catheter seat 5, and the suction tube 6. One end of the operating guide wire 7 extends out of the transition tube body 3 and is connected to the operating handle 2. The operating handle 2 is ergonomic and is used for operator operation. The other end of the operating guide wire 7 extends out of the suction tube 6 and is connected to the head end 8.

[0023] A flow slot 9 is provided at the connection between the operating guide wire 7 and the head end 8. The flow slot 9 is a groove, which is a flow channel for the thrombus after crushing.

[0024] A first Luer connector 1 is provided on the side wall of the transition tube body 3, and the first Luer connector 1 is communicated with the interior of the transition tube body 3;

[0025] The first Luer connector 1 and the second Luer connector 4 are both 6% Luer connectors, and both meet the requirements of GB1962.1 and GB1962.2;

[0026] The head end 8 is in a spiral shape, and the material of the head end 8 is hard alloy, and the end is in a semi-spherical shape, which is smooth and non-traumatic, so as to avoid scratching the inner wall of the blood vessel during the insertion process. The shape is in the shape of a spiral blade, which is used to break up the thrombus, and can also make most of the broken thrombus move toward the proximal end along with the rotation of the spiral blade, so as to prevent the broken thrombus from flowing to the distal end and causing blockage of small blood vessels;

[0027] The material of the suction tube 6 is pebax or nylon, containing developing materials such as bismuth oxide and barium sulfate;

[0028] The operation steps of the new thrombectomy device are as follows:

[0029] Perform percutaneous catheter sheath puncture technique to insert the catheter sheath;

[0030] Under X-ray guidance, the suction tube 6 and the operating guide wire 7 are placed at the target position;

[0031] Manually rotating the guide wire 7 drives the spiral blades at the head end 8 to rotate, breaking up the thrombus. At the same time, the pulverized thrombus moves forward with the rotation of the spiral blades, preventing most of the pulverized thrombus from flowing to the downstream blood vessels.

[0032] While the thrombus is being broken, the broken thrombus that moves forward with the spiral blades will go along the circulation slots to the suction tube 6, and then be drawn out of the body by the suction tube 6;

[0033] After all the thrombi are broken up and drawn out, the suction tube 6 and the operating guide wire 7 are withdrawn from the body under X-ray;

[0034] Routine care after intervention;

[0035] The working principle of the new thrombus removal device is as follows: the spiral blades at the head end 8 serve as a thrombus crushing structure, which crushes the thrombus by rotating. At the same time, the crushed thrombus rotates with the spiral blades due to the centrifugal force and friction force and is lifted. Then, it slides down along the spiral surface under the gravity of the thrombus, so that the thrombus rotates with the spiral blades, thereby realizing the forward movement of the thrombus, just like a non-rotating screw rod performs translational motion along a rotating nut, thereby capturing most of the crushed thrombus. At the same time, the captured crushed thrombus is drawn out of the body along the circulation slot 9 through the negative pressure of suction.

[0036] By making the head end 8 into a spiral blade, the thrombus can be crushed without causing the narrowing of the suction port to reduce the suction efficiency. The rotation of the spiral blade can crush the thrombus while driving the crushed thrombus forward, so that the crushed thrombus can be drawn out of the body along the circulation groove, thereby making the thrombus aspiration easier and more complete.

[0037] The structural design is simple, and no special blocking device is required. Most of the crushed thrombi can be captured only by the spiral blade structure of the head end 8, thereby preventing the thrombi from flowing to the distal blood vessels and causing secondary blockage.

[0038] The above describes the technical solution of the utility model in combination with specific implementation methods, but it should be noted that the above descriptions are only for explaining the solution of the utility model and cannot be interpreted as a specific limitation on the protection scope of the utility model in any way. Based on the explanation here, technicians in this field can think of other specific implementation methods or equivalent replacements of the utility model without creative work, which will fall within the protection scope of the utility model.

Claims

1. A novel thrombus removal device, characterized in that: It comprises a hollow transition tube body (3) and a hollow catheter seat (5), wherein the transition tube body (3) is connected to the catheter seat (5) via a second Luer connector (4), and a suction tube (6) is provided at one end of the catheter seat (5) away from the transition tube body (3); The thrombus removal device further comprises an operating guide wire (7), wherein the operating guide wire (7) passes through the transition tube body (3), the catheter seat (5), and the suction tube (6), one end of the operating guide wire (7) extends out of the transition tube body (3) and is connected to the operating handle (2), and the other end of the operating guide wire (7) extends out of the suction tube (6) and is connected to the head end (8); A flow groove (9) is provided at the connection between the operating guide wire (7) and the head end (8); A first Luer connector (1) is provided on the side wall of the transition tube body (3), and the first Luer connector (1) is connected to the interior of the transition tube body (3).

2. A novel thrombus removal device according to claim 1, characterized in that: The first Luer connector (1) and the second Luer connector (4) are both 6% Luer connectors.

3. A novel thrombus removal device according to claim 1, characterized in that: The head end (8) is in a spiral shape.

4. A novel thrombus removal device according to claim 3, characterized in that: The material of the head end (8) is hard alloy.

5. A novel thrombus removal device according to claim 1, characterized in that: The material of the suction tube (6) is pebax or nylon.

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