Venous thrombus extraction device

Abstract

The utility model relates to the technical field of medical instruments, in particular to a venous thrombosis extraction device, which has the characteristic of improving practicability and comprises a first telescopic tube, a second telescopic tube is arranged in the first telescopic tube, a sliding tube is rotatably connected to the middle of the second telescopic tube through a bearing, and an electric telescopic rod is mounted in the first telescopic tube. A motor is installed on the left portion of the electric telescopic rod, a first gear is arranged on the left portion of the motor, a second gear is arranged on the right portion of the sliding pipe and meshed with the first gear, a third gear is arranged on the left portion of the sliding pipe, a first connecting rod is rotationally connected to the left portion of the second telescopic pipe, and fourth gears are arranged on the two sides of the first connecting rod respectively. And a plurality of second connecting rods are rotationally connected to the upper portion of the second telescopic pipe, fifth gears are arranged in the middles of the second connecting rods, and smashing rollers are arranged at one ends of the second connecting rods.

Description

Technical Field

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

[0002] As we all know, there are two types of venous thrombosis: one is thrombophlebitis, which means that inflammation is the first phenomenon and thrombosis is secondary; the other is venous thrombosis, which means that thrombosis is the first phenomenon and the inflammatory process of the venous wall is secondary. In addition to taking medication, the treatment of thrombosis can also use a venous thrombus removal device to reach into the blood vessel to extract the thrombus.

[0003] In real life, common venous thrombus removal devices generally extend a support frame into the thrombus in the blood vessel to support the blood vessel, and then directly extract the thrombus by vacuuming. For some thrombi with a small coagulation degree and a small amount of coagulation, this direct extraction method can effectively extract the thrombus without causing greater damage to the blood vessel. However, when the amount of thrombus is large and the coagulation degree is high, the extraction force needs to be increased to extract distant thrombi and thrombi with increased coagulation degree. At this time, the increased extraction force is likely to produce a greater attraction to the blood vessels, thereby causing certain damage to the blood vessels. Therefore, the practicality is not very good and there is still room for improvement. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies of the prior art, the utility model provides a venous thrombus removal device, which has the characteristic of improving practicality.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a venous thrombus removal device, comprising a first telescopic tube, a second telescopic tube is arranged inside the first telescopic tube, a sliding tube is rotatably connected to the middle part of the second telescopic tube through a bearing, an electric telescopic rod is installed inside the first telescopic tube, a motor is installed on the left part of the electric telescopic rod, a first gear is arranged on the left part of the motor, a second gear is arranged on the right part of the sliding tube and meshes with the first gear, a third gear is arranged on the left part of the sliding tube, a first connecting rod is rotatably connected to the left part of the second telescopic tube, fourth gears are respectively arranged on both sides of the first connecting rod and meshed with the third gear, a plurality of second connecting rods are rotatably connected to the upper part of the second telescopic tube, a fifth gear is arranged in the middle part of the plurality of second connecting rods and meshed with the corresponding fourth gears respectively, and a crushing roller is arranged at one end of the plurality of second connecting rods.

[0008] Furthermore, a gap is provided between each of the fourth gears and the corresponding crushing rollers, and a gap is provided between each of the fourth gears and the second connecting rod.

[0009] Furthermore, intervals are provided between the plurality of second connecting rods, and the plurality of second connecting rods and the first connecting rod are both made of metal material.

[0010] Furthermore, a lighting lamp is provided on the left portion of the first telescopic tube.

[0011] Preferably, a plurality of liquid discharge pipes are connected through the first telescopic tube, and a handle is provided at the front of the first telescopic tube.

[0012] Preferably, a gap is provided between the inner wall of the first telescopic tube and the first gear.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the present invention provides a venous thrombus removal device having the following features:

[0015] Beneficial effects:

[0016] The venous thrombus removal device starts the motor. When the motor rotates, it drives the crushing roller to rotate through the coordinated transmission of various connecting parts, and directly crushes the thrombus into small particles. At the same time, through the extension of the electric telescopic rod, the crushing roller can be pushed directly into the interior of the blood vessel, and the thrombus is completely crushed step by step, and then it is extracted, so that it will not affect or damage the blood vessel, thereby improving a certain degree of practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0018] Figure 2 It is an enlarged three-dimensional schematic diagram of the utility model after removing the first telescopic tube;

[0019] Figure 3 It is an enlarged structural diagram of the second telescopic tube, the sliding tube and the motor of the utility model.

[0020] In the figure: 1. first telescopic tube; 2. second telescopic tube; 3. sliding tube; 4. electric telescopic rod; 5. motor; 6. first gear; 7. second gear; 8. third gear; 9. fourth gear; 10. fifth gear; 11. crushing roller; 12. lighting lamp; 13. drain pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3The utility model provides a venous thrombus removal device, comprising a first telescopic tube 1, a lighting lamp 12 is arranged on the left part of the first telescopic tube 1, the lighting lamp 12 can be electrically connected to an external power source or powered by a mobile power source, etc., and a suitable method can be selected to provide lighting and illuminate the blood vessels. The first telescopic tube 1 is connected with a plurality of drainage tubes 13 for conveying thrombi, a handle is arranged at the front part of the first telescopic tube 1, and the venous thrombus removal device can be moved by grasping the handle, a second telescopic tube 2 is arranged inside the first telescopic tube 1, and a sliding tube 3 is rotatably connected to the middle part of the second telescopic tube 2 through a bearing, An electric telescopic rod 4 is installed inside the first telescopic tube 1. A motor 5 is installed on the left side of the electric telescopic rod 4. When the electric telescopic rod 4 is started, the electric telescopic rod 4 extends or retracts, driving the motor 5 to move. A first gear 6 is provided on the left side of the motor 5. When the motor 5 is started, the motor 5 rotates, driving the first gear 6 to rotate. A gap is provided between the inner wall of the first telescopic tube 1 and the first gear 6 to prevent the first gear 6 from rubbing against the first telescopic tube 1 during rotation. A second gear 7 is provided on the right side of the sliding tube 3 and meshes with the first gear 6. The first gear 6 rotates, driving the second gear 7 to rotate, thereby driving the sliding tube 3 in the second telescopic tube 2 The upper part of the second telescopic tube 2 is rotatably connected to the third gear 8, and the left part of the second telescopic tube 2 is rotatably connected to the first connecting rod. Fourth gears 9 are respectively arranged on both sides of the first connecting rod, and are meshed with the third gear 8. The sliding tube 3 rotates, driving the third gear 8 to rotate, and at the same time driving the two fourth gears 9 to rotate in the opposite directions to each other. The upper part of the second telescopic tube 2 is rotatably connected to several second connecting rods, and the middle parts of the several second connecting rods are all provided with fifth gears 10, and are respectively meshed with the corresponding fourth gears 9. One end of the several second connecting rods is provided with a crushing roller 11. The two fourth gears 9 rotate, respectively driving the corresponding fifth gears 10. The gear 10 rotates, thereby driving the crushing roller 11 to rotate through the second connecting rod, and the two rotate in opposite directions to each other, crushing the coagulated thrombus in the blood vessel to form small particles, which are then transported away from the several drainage pipes 13. Gaps are set between the several fourth gears 9 and the corresponding crushing rollers 11 to prevent the two from contacting each other. Gaps are set between the several fourth gears 9 and the second connecting rods to prevent the two from contacting each other. Intervals are set between the several second connecting rods to prevent contact with the fifth gear 10 on another second connecting rod. The several second connecting rods and the first connecting rod are all made of metal materials. The metal material is well made and has a long service life.

[0023] In summary, when the venous thrombus removal device is used, the medical staff installs an external connecting tube at one end of the plurality of drainage tubes 13 to extract the thrombus, then turns on the lighting lamp 12 to increase the brightness inside the blood vessel, extends the head of the first telescopic tube 1 into the cut blood vessel, then starts the first motor 5, the motor 5 rotates, drives the first gear 6 to rotate, drives the sliding tube 3 to rotate through the second gear 7, then the sliding tube 3 drives the fourth gear 9 to rotate through the third gear 8, then the fourth gear 9 drives the crushing roller 11 to rotate through the fifth gear 10, and the rotating crushing roller 11 will The stubborn thrombus is crushed, and then the external extraction device is started to extract the thrombus through the drainage tube 13. When the thrombus in this part is crushed, the electric telescopic rod 4 is started, the electric telescopic rod 4 is extended, and the motor 5 is driven to move to the left, and then the sliding tube 3 is driven to move through the first gear 6 and the second gear 7. At this time, the sliding tube 3 drives the second telescopic tube 2 to extend, and the second telescopic tube 2 drives the first telescopic tube 1 to extend. At this time, the crushing roller extends into the interior of the blood vessel to crush the internal thrombus, and then continue to extract the crushed thrombus, and this cycle is repeated to crush and clean up all the thrombi.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A venous thrombus removal device, characterized in that: The invention comprises a first telescopic tube (1), a second telescopic tube (2) is arranged inside the first telescopic tube (1), a sliding tube (3) is rotatably connected to the middle part of the second telescopic tube (2) via a bearing, an electric telescopic rod (4) is installed inside the first telescopic tube (1), a motor (5) is installed on the left part of the electric telescopic rod (4), a first gear (6) is arranged on the left part of the motor (5), a second gear (7) is arranged on the right part of the sliding tube (3) and meshes with the first gear (6), and the sliding tube (3) is provided with a second gear (7) which is meshed with the first gear (6). The left part of the second telescopic tube (3) is provided with a third gear (8), the left part of the second telescopic tube (2) is rotatably connected to the first connecting rod, fourth gears (9) are respectively provided on both sides of the first connecting rod and are meshed with the third gear (8), the upper part of the second telescopic tube (2) is rotatably connected to a plurality of second connecting rods, the middle parts of the plurality of second connecting rods are provided with fifth gears (10) and are respectively meshed with the corresponding fourth gears (9), and one end of the plurality of second connecting rods is provided with a crushing roller (11).

2. A venous thrombus removal device according to claim 1, characterized in that: Gaps are provided between the plurality of fourth gears (9) and the corresponding crushing rollers (11), and gaps are provided between the plurality of fourth gears (9) and the second connecting rods.

3. A venous thrombus removal device according to claim 2, characterized in that: A plurality of the second connecting rods are spaced apart from each other, and the plurality of the second connecting rods and the first connecting rod are both made of metal material.

4. A venous thrombus removal device according to claim 3, characterized in that: A lighting lamp (12) is provided on the left portion of the first telescopic tube (1).

5. A venous thrombus removal device according to claim 4, characterized in that: A plurality of liquid discharge pipes (13) are connected through the first telescopic tube (1), and a handle is provided at the front of the first telescopic tube (1).

6. A venous thrombus removal device according to claim 5, characterized in that: A gap is provided between the inner wall of the first telescopic tube (1) and the first gear (6).

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