Spherical double-cavity micro catheter

Abstract

The utility model discloses a spherical double-cavity microcatheter, which comprises a microhose, a first balloon, a catheter main body, an injector, a camera and a second balloon, the end part of the injector is connected with the catheter main body through a first connecting pipe head, the first balloon is arranged on the catheter main body, the microhose is arranged at the end part of the catheter main body, and the second balloon is arranged at the end part of the second connecting pipe head. A second balloon is arranged on the micro hose, and a camera is arranged at the end of the micro hose. According to the utility model, the syringe is arranged, the end part of the syringe is connected with the catheter main body through the first pipe connecting head, the telescopic rod is arranged in the syringe, and the piston head and the adjusting handle are respectively arranged at the two ends of the telescopic rod, so that gas injection can be manually controlled; an automatic air pump can be connected through the auxiliary connector, automatic air injection can be carried out, the two modes are switched for use, and the universality is greatly improved; a first balloon is contracted on the catheter main body, and a micro hose is arranged at the end part of the catheter main body.

Description

Technical Field

[0001] The utility model relates to the field of microcatheters, and specifically relates to a spherical double-lumen microcatheter. Background Technique

[0002] A microcatheter is a medical device, usually made of plastic or metal, with a very small diameter, usually only a few millimeters. Microcatheters are mainly used for medical examinations and treatments, and can be used for operations such as navigation, sampling, injecting drugs, and guiding implants during surgeries. A microcatheter usually consists of three parts: a catheter body, a catheter tip, and a connector. The catheter body is the longest part, usually made of a soft material, and can bend and turn inside the human body. The catheter tip is the front end of the catheter, usually with different shapes and sizes to meet different operation requirements. The connector is the part that connects the catheter to other instruments or devices, usually having specific interfaces and connection methods;

[0003] For example, the authorized patent (spherical double-lumen microcatheter) with the publication number CN214343909U: includes a head end, a wire distribution mechanism, and an operating catheter. The operating catheter is a double-lumen catheter, with a main lumen and a branch lumen inside. The main lumen passes through the wire distribution mechanism and is connected to the head end, and the branch lumen is connected to the wire distribution mechanism. The wire distribution mechanism includes a main channel connected to the main lumen and a branch channel. One end of the branch channel is connected to the branch lumen, and the other end is connected to a distribution channel inside the wire distribution mechanism. The distribution channel has a branch wire outlet on the side wall of the wire distribution mechanism, and the included angle between the direction of the branch wire outlet and the branch channel is 60° - 120°. The structure of the present invention is simple, with novel ideas. When applied to the reverse wire technique in PCI branch lesion surgeries, the operation difficulty is low, the auxiliary effect is good, the surgical success rate is high, and the effect is remarkable;

[0004] The above-mentioned microcatheters in the prior art are not convenient enough for inflation, and the inflation method is relatively single, unable to switch between manual and electric inflation in cooperation, and the catheter introduction control is not convenient enough, unable to switch between hard and soft for use. Content of the Utility Model

[0005] The purpose of the present utility model is to provide a spherical double-lumen microcatheter to solve the problems proposed in the above background technique, that is, the microcatheter is not convenient enough for inflation, the inflation method is relatively single, unable to switch between manual and electric inflation in cooperation, the catheter introduction control is not convenient enough, and unable to switch between hard and soft for use.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a spherical double-lumen microcatheter, comprising a microtube, a first balloon, a catheter body, a syringe, a camera and a second balloon, the end of the syringe is connected to the catheter body through a first connecting head, the catheter body is provided with a first balloon, the end of the catheter body is provided with a microtube, the microtube is provided with a second balloon, and a camera is provided at the end of the microtube.

[0007] In a further embodiment, the syringe includes a telescopic rod and a secondary joint;

[0008] The telescopic rod is arranged inside the syringe, and piston heads and push-pull handles are respectively arranged at two ends of the telescopic rod. The piston head is slidably embedded in the inner cavity of the syringe, and the auxiliary joint is arranged at the auxiliary joint.

[0009] In a further embodiment, both ends of the interior of the first balloon are provided with air guide heads, and the ends of the air guide heads are provided with second connecting heads.

[0010] In a further embodiment, the catheter body is connected to the second connecting head by an inlay manner, and the catheter body is fixedly inserted into the first connecting head.

[0011] In a further embodiment, the second balloon and the micro-tube are configured as a conjoined structure, and the second balloon is disposed on the micro-tube near the end.

[0012] In a further embodiment, the auxiliary connector is used to connect to an automatic gas injection pump via a connecting tube, and a baffle is provided on the end face of the port of the syringe.

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

[0014] The utility model is provided with a syringe, and the end of the syringe is connected to the catheter body through a first connecting head, and a telescopic rod is provided inside the syringe, and a piston head and an adjustment handle are provided at both ends of the telescopic rod, so that gas injection can be manually controlled, and a secondary joint is provided on one side of the syringe, and an automatic air pump can be connected through the secondary joint, so that automatic gas injection can be performed, and the two modes can be switched for use, and the versatility is greatly improved.

[0015] The utility model has a first balloon on the catheter body, a soft tube at the end of the catheter body, and a second balloon on the soft tube. The first balloon and the second balloon are used for double blood vessel support, and the soft tube can be converted into a hard tube during the inflation process. After the gas is introduced, the support can be strengthened, which is convenient for operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a spherical double-lumen microcatheter of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the syringe of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the first balloon of the utility model;

[0019] Figure 4 It is a structural schematic diagram of part A of the utility model.

[0020] In the figure: 1. Microsoft tube; 2. First balloon; 3. Catheter body; 4. Syringe; 5. First connecting head; 6. Auxiliary connector; 7. Piston head; 8. Telescopic rod; 9. Push-pull handle; 10. Air guide head; 11. Second connecting head; 12. Camera; 13. Second balloon. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] See also Figures 1-4 The utility model provides an embodiment: a spherical double-lumen microcatheter, comprising a soft tube 1, a first balloon 2, a catheter body 3, a syringe 4, a camera 12 and a second balloon 13. The end of the syringe 4 is connected to the catheter body 3 through a first connecting head 5. The catheter body 3 is provided with a first balloon 2. The end of the catheter body 3 is provided with a soft tube 1. The second balloon 13 is provided on the soft tube 1. The end of the soft tube 1 is provided with a camera 12. The second balloon 13 and the soft tube 1 are set as a conjoined structure. The second balloon 13 is arranged on the soft tube 1 near the end. This design facilitates the operation of the soft tube 1. The first connecting head 5 facilitates the assembly of the syringe 4 and the catheter body 3. The first balloon 2 and the second balloon 13 are used to support the front and rear expansion of the blood vessel. The soft tube 1 has strong softness, which is convenient for introduction into the blood vessel.

[0023] The syringe 4 includes a telescopic rod 8 and a sub-joint 6; the telescopic rod 8 is arranged inside the syringe 4, and the two ends of the telescopic rod 8 are respectively provided with a piston head 7 and a push-pull handle 9, the piston head 7 is slidably embedded in the inner cavity of the syringe 4, and the sub-joint 6 is arranged on the sub-joint 6. The piston head 7 is controlled by the telescopic rod 8 to slide and retract in the syringe 4, so that the air is pressurized through the piston head 7, and the push-pull handle 9 is used to hand-control the telescopic rod 8, and the sub-joint 6 is used to connect to the automatic air injection pump through a connecting pipe, and a baffle is provided on the port end face of the syringe 4.

[0024] Gas guiding heads 10 are provided at both inner ends of the first balloon. A second connecting head 11 is provided at the end of the gas guiding head 10. The gas guiding head 10 facilitates the introduction of gas, and the second connecting head 11 facilitates the installation of the catheter main body 3. The catheter main body 3 is connected to the second connecting head 11 by an inlay method, and the catheter main body 3 is inserted and fixed to the first connecting head 5. This method facilitates the installation of the catheter main body 3.

[0025] Working principle: During use, connect the end of the catheter main body 3 to the first connecting head 5 at the end of the syringe 4. Assemble both ends of the first balloon 2 to the catheter main body 3 through the second connecting head 11. Manually control the telescopic rod 8 to expand and contract by pushing and pulling the handle 9, so that the piston head 7 at the end of the telescopic rod slides and expands and contracts in the syringe 4. Install the air supply pump through the sub-connector 6 so that it can be automatically inflated. Inject gas from the syringe 4 into the catheter main body 3, discharge the gas into the first balloon 2 through the gas guiding head 10, and transport it to the second balloon 13 through the microtube 1 for expansion and support. Use the camera 12 to assist the insertion of the microtube 1 into the blood vessel for convenient imaging and observation operations.

[0026] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A spherical double-lumen microcatheter, comprising a microtube (1), a first balloon (2), a catheter body (3), a syringe (4), a camera (12) and a second balloon (13), characterized in that: The end of the syringe (4) is connected to the catheter body (3) via a first connecting head (5); the catheter body (3) is provided with a first balloon (2); the end of the catheter body (3) is provided with a soft tube (1); the soft tube (1) is provided with a second balloon (13); and a camera (12) is provided at the end of the soft tube (1).

2. The spherical double-chamber microcatheter according to claim 1, characterized in that: The syringe (4) comprises a telescopic rod (8) and a secondary joint (6); The telescopic rod (8) is arranged inside the syringe (4), and a piston head (7) and a push-pull handle (9) are respectively arranged at two ends of the telescopic rod (8). The piston head (7) is slidably embedded in the inner cavity of the syringe (4), and the auxiliary joint (6) is arranged on the auxiliary joint (6).

3. The spherical double-lumen microcatheter according to claim 1, wherein: Both ends of the interior of the first balloon are provided with air guide heads (10), and the ends of the air guide heads (10) are provided with second connecting heads (11).

4. A spherical double-lumen microcatheter according to claim 1, characterized in that: The catheter body (3) is connected to the second connecting head (11) by means of an inlay method, and the catheter body (3) is fixedly inserted into the first connecting head (5).

5. A spherical double-chamber microcatheter according to claim 1, characterized in that: The second balloon (13) and the microtube (1) are provided as a connected structure, and the second balloon (13) is provided on the microtube (1) near the end.

6. A spherical double-lumen microcatheter according to claim 2, characterized in that: The auxiliary joint (6) is used to be connected to an automatic gas injection pump via a connecting pipe, and a baffle is provided on the end surface of the port of the syringe (4).

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