Double-cavity thrombus taking catheter without hurting blood vessels during balloon dilatation

Abstract

The utility model belongs to the technical field of double-cavity thrombus taking catheters, and particularly relates to a double-cavity thrombus taking catheter without hurting blood vessels during balloon dilatation, which comprises a catheter main body, a movable component is mounted on the outer side of the catheter main body, the movable component comprises an inflation tube, a rotating wheel is movably connected to the side surface of the inflation tube, and a semi-arc groove is formed in the side edge of the rotating wheel. A screw rod is in threaded connection with the interior of the rotating wheel, one end of the screw rod penetrates through the surface of the inflation pipe and extends into the inflation pipe, a movable block is fixedly connected to one end of the screw rod, a sealing ring is fixedly connected to the outer surface of the movable block, and the outer surface of the sealing ring is attached to the inner surface of the inflation pipe; the outer surface of the inflation pipe is fixedly connected with a fixing block, the other end of the screw is fixedly connected with a limiting rod, and the outer surface of the limiting rod is movably connected with the interior of the fixing block. The balloon dilatation device can accurately control the dilatation size of the balloon, avoids excessive dilatation of the balloon, protects blood vessels from being damaged, and is convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of double -cavity blood -thrombus catheter, concretely is a kind of balloon dilatation does not hurt blood vessel's double -cavity blood -thrombus catheter. BACKGROUND

[0002] Double -cavity blood -thrombus catheter is a kind of medical equipment for intravascular thrombus removal, two cavities are used to perfuse thrombolytic drugs or contrast medium, and the other is mainly used to aspirate thrombus, double -cavity design makes it possible to perfuse and aspirate simultaneously during treatment, effectively improve the efficiency of thrombus removal.

[0003] In prior art, when catheter works, it usually needs to be blocked by the balloon set to the blood vessel, and the balloon cannot accurately control the expansion size when expanding in the blood vessel, and is easy to expand excessively, so as to cause the blood vessel to be damaged by excessive extrusion, and affect the use of double -cavity blood -thrombus catheter. SUMMARY

[0004] The utility model aims at providing a kind of balloon dilatation does not hurt blood vessel's double -cavity blood -thrombus catheter, can accurately control the expansion size of balloon, avoid balloon expansion, protect blood vessel from damage, and it is easy to use.

[0005] To achieve the above object, the utility model adopts the technical scheme of providing a kind of balloon dilatation does not hurt blood vessel's double -cavity blood -thrombus catheter, including catheter main part, the outside of catheter main part is equipped with movable assembly, the movable assembly includes inflation pipe, the side surface of inflation pipe is movably connected with rotating wheel, the side of rotating wheel is provided with half-arc slot, the number of half-arc slot is multiple, the inside screw thread of rotating wheel is connected with screw rod, the one end of screw rod extends to the inside of inflation pipe by passing through the surface of inflation pipe, the one end of screw rod is fixedly connected with movable block, the outer surface of movable block is fixedly connected with sealing ring, the outer surface of sealing ring is in conformity with the inner surface of inflation pipe, the outer surface of inflation pipe is fixedly connected with fixed block, the other end of screw rod is fixedly connected with limit rod, the outer surface of limit rod is movably connected with the inside of fixed block.

[0006] Optionally, the lower surface of the inflation pipe is fixedly connected with the connecting pipe, one end of the connecting pipe is fixedly connected with the side surface of the catheter main body, the inside of the catheter main body is provided with a second cavity, one end of the second cavity is communicated with one end of the connecting pipe.

[0007] Optionally, the outer surface of the catheter main body is provided with a balloon, the other end of the second cavity extends to the outer surface of the catheter main body by penetrating the inside of the catheter main body, and the other end of the second cavity is located in the inside of the balloon.

[0008] Optionally, a first cavity is formed in the side surface of the catheter body, and the first cavity extends through the inside of the catheter body to the other side surface of the catheter body.

[0009] Optionally, an installation pipe is fixedly connected to the inner surface of the first cavity, and a connecting plate is fixedly connected to the outer surface of the installation pipe.

[0010] Optionally, a first developing ring is fixedly connected to the outer surface of the catheter body, and a second developing ring is fixedly connected to the outer surface of the catheter body.

[0011] Compared with the prior art, the utility model has the advantages of the following:

[0012] The utility model discloses a movable assembly, when using, rotating the rotating wheel, through the rotation angle of control half arc groove, make the rotating wheel rotate certain number of turns, push the screw to advance certain distance, movable block push a certain amount of gas correspondingly, and a certain pressure is added to the air bag, and the expansion size of the balloon can be controlled. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will be to the embodiment or the description of prior art needed to use the drawing briefly introduced, obviously, the following description in the drawing is only some embodiments of the utility model, for those skilled in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0014] Figure 1 It is the first view angle overall structure schematic diagram of the utility model;

[0015] Figure 2 It is the second view angle overall structure schematic diagram of the utility model;

[0016] Figure 3 It is the sectional structure schematic diagram of the utility model;

[0017] Figure 4 It is the Figure 3 Enlarged structure schematic diagram of A in the utility model;

[0018] Figure 5 It is the Figure 3 Enlarged structure schematic diagram of B in the utility model.

[0019] In the figure: 1, catheter body; 2, movable assembly; 201, inflation tube; 202, rotating wheel; 203, semicircular groove; 204, screw rod; 205, movable block; 206, sealing ring; 207, fixed block; 208, limiting rod; 3, connecting pipe; 4, second cavity; 5, balloon; 6, first cavity; 7, mounting pipe; 8, connecting plate; 9, first developing ring; 10, second developing ring. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects of the utility model to be solved more clearly, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and do not limit the utility model.

[0021] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0022] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the utility model and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0023] In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0024] A balloon dilatation non-injury blood vessel double-cavity thrombus removal catheter provided by the utility model embodiment will be described. Please refer to Figures 1 to 5A balloon expansion does not hurt the double cavity blood thrombus catheter of blood vessel, including catheter main body 1, the outside of catheter main body 1 is equipped with movable assembly 2, movable assembly 2 includes inflation pipe 201, the side surface of inflation pipe 201 is equipped with limit groove, the side surface of inflation pipe 201 is movably connected with rotating wheel 202, the side surface of rotating wheel 202 is fixedly connected with limit ring, limit ring is located inside limit groove, the side of rotating wheel 202 is equipped with semicircular groove 203, the number of multiple semicircular groove 203 is distributed in circle equidistance, when rotating wheel 202 is rotated, the rotation angle of rotating wheel 202 can be controlled by controlling the rotation angle of semicircular groove 203, to control the forward distance of screw rod 204, and then the gas pressure of pushing is controlled, so that the expansion size of balloon 5 is controlled, the inside of rotating wheel 202 is threadedly connected with screw rod 204, one end of screw rod 204 extends to the inside of inflation pipe 201 through the surface of inflation pipe 201, one end of screw rod 204 is fixedly connected with movable block 205, the outer surface of movable block 205 is fixedly connected with sealing ring 206, sealing ring 206 can avoid gas leakage, facilitate gas pushing, the outer surface of sealing ring 206 is attached with the inner surface of inflation pipe 201, the outer surface of inflation pipe 201 is fixedly connected with fixed block 207, the other end of screw rod 204 is fixedly connected with limit rod 208, limit rod 208 is L-shaped, the outer surface of limit rod 208 is movably connected with the inside of fixed block 207, fixed block 207 cooperates with limit rod 208 to limit screw rod 204, so that when rotating wheel 202 rotates, screw rod 204 can only move linearly, to realize gas pushing.

[0025] In the embodiment of the utility model, please refer to Figures 1 to 5 The lower surface of inflation pipe 201 is fixedly connected with connecting pipe 3, one end of connecting pipe 3 is fixedly connected with the side surface of catheter main body 1, connecting pipe 3 can transport the pushed gas into second cavity 4, the inside of catheter main body 1 is equipped with second cavity 4, one end of second cavity 4 is communicated with one end of connecting pipe 3, the outer surface of catheter main body 1 is provided with balloon 5, by the expansion of balloon 5, the occlusion of blood vessel can be realized, and the blood thrombus operation is facilitated, the other end of second cavity 4 extends to the outer surface of catheter main body 1 through the inside of catheter main body 1, the other end of second cavity 4 is located in the inside of balloon 5, second cavity 4 realizes the communication of connecting pipe 3 and balloon 5, can transport the gas into balloon 5, so that balloon 5 expands.

[0026] In the embodiment of the utility model, please refer to Figures 1 to 5The side surface of the catheter body 1 is provided with a first cavity 6, the first cavity 6 extends through the inside of the catheter body 1 to the other side surface of the catheter body 1, the first cavity 6 can take out the thrombus, the inner surface of the first cavity 6 is fixedly connected with a mounting pipe 7, the mounting pipe 7 is convenient for conveying the thrombus in the first cavity 6 to the outside of the body, the outer surface of the mounting pipe 7 is fixedly connected with a connecting plate 8, and the connecting plate 8 is convenient for mounting and fixing the mounting pipe 7.

[0027] In the embodiment of the utility model, please refer to Figures 1 to 5 The outer surface of the catheter body 1 is fixedly connected with a first developing ring 9, the outer surface of the catheter body 1 is fixedly connected with a second developing ring 10, through the cooperation of the first developing ring 9 and the second developing ring 10, the specific position of the balloon 5 is conveniently observed by medical staff, and subsequent operation is facilitated.

[0028] The above only is the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement and improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A balloon dilatation non-vascular double-lumen thrombus-removing catheter comprising a catheter main body (1), characterized in that: The outer side of the catheter body (1) is provided with a movable assembly (2), the movable assembly (2) comprises an inflation pipe (201), the side surface of the inflation pipe (201) is movably connected with a rotating wheel (202), a plurality of semicircular grooves (203) are arranged on the side of the rotating wheel (202), the inside of the rotating wheel (202) is screw-connected with a screw rod (204), one end of the screw rod (204) extends to the inside of the inflation pipe (201) through the surface of the inflation pipe (201), one end of the screw rod (204) is fixedly connected with a movable block (205), the outer surface of the movable block (205) is fixedly connected with a sealing ring (206), the outer surface of the sealing ring (206) is matched with the inner surface of the inflation pipe (201), the outer surface of the inflation pipe (201) is fixedly connected with a fixed block (207), the other end of the screw rod (204) is fixedly connected with a limiting rod (208), the outer surface of the limiting rod (208) is movably connected with the inside of the fixed block (207).

2. The double-lumen thrombus extraction catheter of claim 1, wherein: The lower surface of the inflation pipe (201) is fixedly connected with a connecting pipe (3), one end of the connecting pipe (3) is fixedly connected with the side surface of the catheter body (1), the inside of the catheter body (1) is provided with a second cavity (4), one end of the second cavity (4) is communicated with one end of the connecting pipe (3).

3. The double lumen thrombus extraction catheter of claim 2, wherein: The outer surface of the catheter body (1) is provided with a balloon (5), the other end of the second cavity (4) extends to the outer surface of the catheter body (1) through the inside of the catheter body (1), and the other end of the second cavity (4) is located in the inside of the balloon (5).

4. The double lumen thrombus extraction catheter of claim 1, wherein: The side surface of the catheter body (1) is provided with a first cavity (6), the first cavity (6) extends to the other side surface of the catheter body (1) through the inside of the catheter body (1).

5. The double lumen thrombus extraction catheter of claim 4, wherein: The inner surface of the first cavity (6) is fixedly connected with a mounting pipe (7), and the outer surface of the mounting pipe (7) is fixedly connected with a connecting plate (8).

6. The double lumen thrombus extraction catheter of claim 1, wherein: The outer surface of the catheter body (1) is fixedly connected with a first developing ring (9), and the outer surface of the catheter body (1) is fixedly connected with a second developing ring (10).

Images