Rapid Exchange Balloon System

Abstract

The present invention discloses a rapid exchange balloon system, and the rapid exchange balloon system includes: a catheter (1) including a catheter proximal end (101) with a fixed position; a rapid exchange balloon catheter (2) inserted into the catheter (1) and including a movable distal end of the rapid exchange balloon catheter and a wire rapid access port located on the tube wall; and a guide wire (3) including a fixed and rotatable proximal end of the guide wire (301) and a movable distal end of the guide wire (304), and the distal end of the guide wire (304) can penetrate through the wire rapid access port and the distal end of the rapid exchange balloon catheter; the rotation and movement of the guide wire can realize the helical path of the guide wire and can accurately replicate the actions of the doctor. By arranging the catheter proximal end and the proximal end of the guide wire at intervals and with fixed positions, the guide wire is always in a bent state. There is no need to adaptively adjust the position of the proximal end of the guide wire according to the movement of the distal end of the guide wire, ensuring the rapidity, accuracy and convenience of the interventional operation.

Description

Technical Field

[0001] The present invention belongs to the technical field of interventional therapy, and specifically relates to a rapid exchange balloon system. Background Art

[0002] Interventional therapy is a minimally invasive treatment using modern high-tech means. Under the guidance of medical imaging equipment, special catheters, guide wires and other precision instruments are introduced into the human body for the diagnosis and local treatment of internal diseases. Interventional therapy includes intravascular intervention and non-vascular intervention. Among them, in terms of vascular diseases, it mainly includes percutaneous transluminal angioplasty, vascular stents, thrombolytic therapy, vascular malformations, embolization therapy for arteriovenous fistulas and hemangiomas, inferior vena cava filters, various angiographic diagnoses and venous blood sampling diagnoses. Non-vascular interventional therapy mainly includes various percutaneous biopsy techniques, various non-vascular lumen angioplasty techniques, local ablation of solid tumors and interventional therapy for lumbar disc herniation.

[0003] The rapid exchange balloon system is one of the most widely used in vascular interventional therapy. The main advantages are that the operation of the guide wire does not require changing the catheter at any time, and at the same time, when replacing the balloon dilatation catheter, an extension guide wire is not needed. There is a side hole 25 cm away from the balloon top of the catheter, and the guide wire can be inserted from the balloon top and passed out from this side hole, which can facilitate the operator's operating space. However, in the existing rapid exchange balloon system, the catheter, the rapid exchange balloon catheter and the guide wire need to adjust the position of its proximal end according to the movement of the distal end, and the operation steps are cumbersome, increasing the surgical difficulty of interventional therapy. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies of the prior art, the present invention provides a rapid exchange balloon system, which has a simple structure and can quickly, accurately and conveniently control the wire tube of the rapid exchange balloon system, reducing the operation difficulty of interventional therapy and ensuring the smooth completion of interventional surgery.

[0005] To achieve the above object, the present invention provides a rapid exchange balloon system, which comprises:

[0006] A catheter, including a proximal end of the catheter;

[0007] A rapid exchange balloon catheter, inserted into the catheter and including a movable distal end of the rapid exchange balloon catheter and a guide wire quick port on the tube wall; and

[0008] A guide wire, including a rotatable proximal end of the guide wire and a movable distal end of the guide wire, and the distal end of the guide wire can penetrate through the guide wire quick port and the distal end of the rapid exchange balloon catheter;

[0009] Wherein, the proximal end of the guide wire is arranged at an interval from the proximal end of the catheter and the relative position is fixed. Between the proximal end of the guide wire and the proximal end of the catheter, the guide wire is bent.

[0010] In some embodiments, the proximal end of the guide wire is cylindrical and the axis of the guide wire at the proximal end of the guide wire is arranged non-coaxially with the axis of the pipeline at the proximal end of the catheter.

[0011] In some embodiments, the proximal end of the guide wire is arranged in parallel and at an interval from the proximal end of the catheter.

[0012] In some embodiments, the guide wire further includes a guide wire connecting section connecting the proximal end of the guide wire and the distal end of the guide wire. The guide wire connecting section is U-shaped and includes a front part of the guide wire turning and a rear part of the guide wire turning that are parallel to each other, and an arc-shaped connecting part connecting between the front part of the guide wire turning and the rear part of the guide wire turning.

[0013] In some embodiments, the rapid exchange balloon system further includes:

[0014] A seat body for mounting the catheter, the rapid exchange balloon catheter, and the guide wire;

[0015] A plurality of moving drive seats, which are mounted on the seat body and are respectively used to drive the distal end of the catheter to move, drive the distal end of the guide wire to move, and drive the distal end of the rapid exchange balloon catheter to move;

[0016] A plurality of rotation drive seats, which are mounted on the seat body and are respectively used to drive the proximal end of the catheter to rotate and drive the proximal end of the guide wire to rotate; and

[0017] A guide wire guiding structure, which is fixedly mounted on the seat body and is used to adjust the turning of the guide wire.

[0018] In some embodiments, the seat body includes:

[0019] A fixed seat; and

[0020] A base, which has a sliding member and is mounted on the fixed seat;

[0021] Wherein, the fixed seat is L-shaped and is provided with a slide rail for the sliding of the sliding member.

[0022] In some embodiments, the moving drive seat includes:

[0023] A wheel drive motor, which is fixedly mounted on the base; and

[0024] A moving wheel set, which includes a tube and wire drive wheel and a tube and wire idler wheel extending from the base;

[0025] Wherein, the tube and wire drive wheel and the tube and wire idler wheel are arranged in parallel and at an interval and jointly form a tube and wire clamping space.

[0026] In some embodiments, the rotary drive seat includes:

[0027] A rotary drive motor fixedly installed on the base;

[0028] A bevel gear transmission member drivingly connected to the rotary drive motor; and

[0029] A pipe and wire clamp drivingly connected to the bevel gear transmission member and used for clamping and fixing the catheter or the guide wire.

[0030] In some embodiments, the guide wire guiding structure is in an open shape and includes a bottom plate fixedly installed on the base and two limiting plates spaced apart on the bottom plate, and the limiting plates are used for restricting the moving range of the guide wire; or, the guide wire guiding structure is a sleeve member and includes a guiding housing and a limiting accommodation space defined by the guiding housing for accommodating the guide wire.

[0031] In some embodiments, the rapid exchange balloon system further includes a three-way pipe communicated with the proximal end of the catheter, and a pipe and wire inlet for inserting the rapid exchange balloon catheter and the guide wire and an injection liquid inlet for communicating with an external syringe are formed on the three-way pipe.

[0032] In the rapid exchange balloon system of the present invention, a combination of a catheter, a guide wire and a rapid exchange balloon catheter is adopted, and the spiral movement of the guide wire can be realized through the rotation and movement of the guide wire, so that the rapid exchange balloon system can accurately replicate the actions of the doctor. By arranging the proximal end of the catheter and the proximal end of the guide wire at intervals and in a fixed position, the guide wire is always in a bent state. It is not necessary to adaptively adjust the position of the proximal end of the guide wire according to the movement of the distal end of the guide wire, and the guide wire is bent and can move orderly, ensuring the rapidity, accuracy and convenience of the interventional operation.

[0033] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, and are used to explain the present invention together with the following specific implementation manners, but do not constitute a limitation to the present invention. In the drawings:

[0035] Figure 1 FIG. is a schematic three-dimensional structure diagram of a rapid exchange balloon system according to a specific implementation manner of the present invention;

[0036] Figure 2 is Figure 1 Schematic diagrams of structures from different perspectives;

[0037] Figure 3 isFigure 2 Rear view structure diagram, showing the seat body and the guide wire guiding structure;

[0038] Figure 4 is Figure 2 Top view structure schematic diagram, showing the seat body, the guide wire guiding structure and the catheter;; and

[0039] Figure 5 is Figure 2 Partial structure enlarged view, showing the rotary drive seat.

[0040] Explanation of reference numerals:

[0041] 1 Catheter 2 Rapid exchange balloon catheter

[0042] 101 Proximal end of catheter

[0043] 3 Guide wire

[0044] 301 Proximal end of guide wire 302 Front part of guide wire turning

[0045] 303 Rear part of guide wire turning 304 Distal end of guide wire

[0046] 100 Seat body

[0047] 110 Base 120 Fixed seat

[0048] 200 Mobile drive seat

[0049] 210 Wheel drive motor 220 Mobile wheel set

[0050] 300 Rotary drive seat

[0051] 310 Rotary drive motor 320 Bevel gear transmission

[0052] 330 Tube wire clamp

[0053] 440 Guide wire guiding structure

[0054] 41 Base plate 42 Limit plate

[0055] 4 Three-way pipe

[0056] 401 Tube wire inlet 402 Injection liquid inlet

[0057] Z1 Guide wire axis Z2 Pipeline axis Detailed implementation manners

[0058] The following will describe in detail the specific implementation manners of the present invention with reference to the accompanying drawings. It should be understood that the specific implementation manners described herein are only for explaining and understanding the present invention, and are not used to limit the present invention.

[0059] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0060] In the present invention, unless otherwise stated, the orientation words such as "upper, lower, top, bottom" are usually in reference to the direction shown in the drawings or in reference to the vertical, perpendicular or gravitational direction for describing the relative positional relationship of each component.

[0061] The rapid exchange balloon system is one of the most widely used in vascular interventional therapy. Its main advantage is that there is no need to replace the catheter at any time during the operation of the guide wire. At the same time, when replacing the balloon dilation catheter, there is no need to use an extension guide wire. There is a side hole 25 cm from the top of the balloon on the catheter. The guide wire can be inserted from the top of the balloon and exit from this side hole, which is convenient for the operator's operating space. However, in the existing rapid exchange balloon system, the catheter, the rapid exchange balloon catheter and the guide wire need to adjust the position of their proximal ends according to the movement of the distal end, and the operation steps are cumbersome, increasing the surgical difficulty of interventional therapy. Therefore, how to ensure the rapidity, accuracy and convenience of rapid exchange balloon interventional surgery is a problem worthy of research. The specific structure and function of the rapid exchange balloon system will be elaborated in detail below.

[0062] Reference Figures 1 to 5 As shown, the present invention discloses a rapid exchange balloon system, which includes: a catheter 1, a rapid exchange balloon catheter 2 and a guide wire 3;

[0063] Specifically, the catheter 1 includes a catheter proximal end 101. In the rapid exchange balloon system, the catheter 1 is an external component, and its interior can accommodate the rapid exchange balloon catheter 2 and the guide wire 3. The rapid exchange balloon catheter 2 and the guide wire 3 can be inserted from the catheter proximal end 101, so that the operation is convenient and the rapid exchange balloon catheter 2 and the guide wire 3 are effectively protected;

[0064] The rapid exchange balloon catheter 2 is inserted into the catheter 1 and includes a movable distal end of the rapid exchange balloon catheter and a guide wire quick port located on the tube wall. The rapid exchange balloon catheter 2 generally includes a balloon part and a catheter part. Under a specified pressure, the balloon at the distal end of the rapid exchange balloon catheter can be expanded to a specified diameter. The distal end of the rapid exchange balloon catheter is inserted into the catheter 1 and can move along the length direction of the catheter 1. In this way, the distal end of the rapid exchange catheter can be moved to the patient's lesion, which is convenient for treating the lesion; and

[0065] The guide wire 3 includes a rotatable proximal end 301 of the guide wire and a movable distal end 304 of the guide wire. The distal end 304 of the guide wire can penetrate through the guide wire quick connector and the distal end of the rapid exchange balloon catheter. The proximal end 301 of the guide wire 3 can rotate, which determines that the distal end 304 of the guide wire can deflect at an angle. The distal end 304 of the guide wire can move, which determines the moving distance of the guide wire 3. In this way, through the rotation of the proximal end 301 of the guide wire and the movement of the distal end 304 of the guide wire, the two movement modes are superimposed on the distal end 304 of the guide wire, and the spiral movement mode of the guide wire 3 can be realized. Based on this spiral movement mode, the rapid exchange balloon system can accurately replicate the doctor's actions, ensuring the rapidity, accuracy and convenience of the interventional operation. In addition, since the guide wire 3 can connect the distal end of the rapid exchange balloon catheter and the guide wire quick connector, it is not necessary to use an extension guide wire 3 when replacing the rapid exchange balloon catheter 2.

[0066] Among them, the proximal end 301 of the guide wire and the proximal end 101 of the catheter are arranged at intervals and the relative positions are fixed. Between the proximal end 301 of the guide wire and the proximal end 101 of the catheter, the guide wire 3 is bent. It can be understood that the proximal end 301 of the guide wire and the proximal end 101 of the catheter are arranged at intervals with a fixed position, that is, the distance between the two is fixed. During the interventional operation treatment process, the position of the proximal end 301 of the guide wire is fixed, and the distal end 304 of the guide wire is inserted into the proximal end 101 of the catheter. In this way, the part of the guide wire located outside the proximal end 301 of the guide wire and the proximal end 101 of the catheter forms the outer part of the guide wire, and the outer part of the guide wire is always in a bent state. There is no need to adjust the position of the proximal end 301 of the guide wire according to the movement of the distal end 304 of the guide wire, and the guide wire is bent and can move orderly, ensuring the rapidity, accuracy and convenience of the interventional operation.

[0067] Optionally, for the catheter 1, it can be a medical catheter with a certain inner diameter and has two catheter ends. One of the catheter ends is the proximal end 101 of the catheter. In the rapid exchange balloon system, it can include a system mounting seat. The proximal end 101 of the catheter can be fixedly mounted on the system mounting seat. The mounting seat can be a plate-like structure or a frame structure, and no specific limitation is made thereto.

[0068] Optionally, for the rapid exchange balloon catheter 2, it can include two balloon catheter ends. One of the balloon catheter ends is used as the distal end of the rapid exchange balloon catheter, and the other end is used as the proximal end of the rapid exchange balloon catheter. Its outer diameter is smaller than the inner diameter of the catheter 1. Therefore, it can be inserted into the catheter 1 and can move inside the catheter 1. The proximal end of the rapid exchange balloon catheter can have a female Luer connector, which can be connected to a device capable of performing inflation operation to adjust the size of the balloon. In addition, the material of the rapid exchange balloon catheter 2 needs to meet medical requirements. For example, the balloon section of the rapid exchange balloon catheter 2 can be a polyetheramide block copolymer, and the catheter section can be a polyetheramide block copolymer. Of course, the material of the rapid exchange balloon catheter 2 is not limited thereto.

[0069] Optionally, for the mobility of the distal end of the rapid exchange balloon catheter, a wheel set can be used to clamp the rapid exchange balloon catheter 2. At this time, the rotation of the wheel part of the wheel set can be converted into the linear movement of the rapid exchange balloon catheter 2. In this way, the distal end of the rapid exchange balloon catheter can be accurately and efficiently controlled to move to the specified lesion site.

[0070] Optionally, for the guide wire 3, the catheter 1 can be guided to a specified position through the guide wire 3. The guide wire 3 plays a role of guiding, positioning and supporting in this rapid exchange balloon system, and can help the catheter enter blood vessels and other cavities, and guide the catheter to reach the lesion smoothly. Therefore, the accurate manipulation of the guide wire 3 is a necessary condition for accurately replicating the actions of medical staff. The guide wire 3 can include an inner part and an outer part. The outer part can be made of high-quality stainless steel wire wound on a spring lathe, and the inner part can be a hard and straight steel wire core accommodated in the outer part.

[0071] Optionally, the distal end 304 of the guide wire 3 can be a J-shaped safety guide wire. The guide wire 3 includes two ends, and the movable distal end 304 of the guide wire is J-shaped bent. In this way, when encountering a curved and deformed blood vessel during intubation, the front end of the guide wire will not be fixed on the blood vessel wall, thus effectively preventing damage to the blood vessel. The J-shaped structure of the distal end of the guide wire can be divided into various sizes of large, medium and small. The small size can be applicable to blood vessels, and the large size can help adjust the intubation direction. At the part where the direction of the bile duct and other parts changes, the catheter 1 can be inserted into branches in different directions by means of the bend of the guide wire 3.

[0072] Optionally, both the proximal end 301 of the guide wire and the proximal end 101 of the catheter are fixed in position. At this time, the two can be arranged at intervals on the system mounting seat, that is, the distance between the two is fixed. Since the distal end 304 of the guide wire is inserted into the proximal end 101 of the catheter, at this time, between the proximal end 301 of the guide wire and the proximal end 101 of the catheter, the guide wire 3 can be bent by a limiting member. In this way, it is not necessary to adjust the position of the proximal end 301 of the guide wire according to the movement of the distal end 304 of the guide wire, and the guide wire is bent and can move orderly, ensuring the rapidity, accuracy and convenience of the interventional operation.

[0073] For the specific structure of the rapid exchange balloon system, in one embodiment, the proximal end 301 of the guide wire is cylindrical and the guide wire axis Z1 of the proximal end 301 of the guide wire is not coaxially arranged with the pipeline axis Z2 of the proximal end 101 of the catheter. As Figure 1 and Figure 2 shown, it can be understood that for the proximal end 101 of the catheter and the proximal end 301 of the guide wire that are fixed in position, they are not on the same axis, as Figure 2As shown, the guide wire 3 can be arranged in a bent shape and always maintain a relaxed state. In this way, it can not only ensure the orderly arrangement of the guide wire 3 at the initial stage of the system, but also effectively guarantee the movement requirements of the guide wire without adaptively adjusting the position of the proximal end 301 of the guide wire when the distal end 304 of the guide wire moves. Specifically, the rotation of the proximal end 301 of the guide wire can be effectively transmitted to the distal end 304 of the guide wire to adjust the deflection direction of the distal end 304 of the guide wire, and the movement of the distal end 304 of the guide wire can achieve the smooth movement of the distal end 304 of the guide wire. The rotation and movement are superimposed on the distal end 304 of the guide wire to accurately replicate the operation of medical staff. The structure is simple and easy to operate.

[0074] Furthermore, regarding the positional relationship between the proximal end 301 of the guide wire and the proximal end 101 of the catheter, in one embodiment, the proximal end 301 of the guide wire and the proximal end 101 of the catheter are arranged in parallel at an interval. As Figure 2 shown, it can be understood that the axis Z1 of the guide wire and the axis Z2 of the pipeline are arranged in parallel, which can improve the structural compactness of the system.

[0075] Even further, in one embodiment, the guide wire 3 further includes a guide wire connecting section connecting the proximal end 301 and the distal end 304 of the guide wire. The guide wire connecting section is in a U shape and includes a front part 302 of the guide wire turning and a rear part 303 of the guide wire turning that are parallel to each other, and an arc-shaped connecting part connecting between the front part 302 of the guide wire turning and the rear part 303 of the guide wire turning. As Figure 2 shown, at this time, the guide wire connecting section between the proximal end 301 of the guide wire and the proximal end 101 of the catheter is in a U-shaped structure. The front part 302 of the guide wire turning and the rear part 303 of the guide wire turning can be structurally restricted by the external components of the system, and the distance between the front part 302 of the guide wire turning and the rear part 303 of the guide wire turning is always the same as the distance between the axis Z1 of the guide wire and the axis Z2 of the pipeline, which not only ensures the orderly arrangement of the guide wire 3, but also improves the structural compactness of the guide wire 3. For the arc-shaped connecting part, its radian should not be too large. Among them, the minimum distance between the axis Z1 of the guide wire and the axis Z2 of the pipeline can be 5 cm. In this way, it is avoided that the bending angle of the guide wire 3 is too large, ensuring the orderly movement of the guide wire 3 and reducing the operation difficulty of the surgery.

[0076] Regarding other specific structures of the rapid exchange balloon system, in one embodiment, the rapid exchange balloon system further includes: a seat body 100 for installing the catheter 1, the rapid exchange balloon catheter 2, and the guide wire 3; as Figure 1 and Figure 3 shown, the seat body 100 can be a plate-like member with a planar structure, which is convenient for processing. Installing the catheter 1, the rapid exchange balloon catheter 2, and the guide wire 3 on the seat body 100 has a compact structure and does not interfere with each other, providing a prerequisite guarantee for the smooth completion of interventional treatment.

[0077] Regarding the specific driving structures of the catheter 1, the rapid-exchange balloon catheter 2, and the guide wire 3, on the one hand, the system includes a plurality of moving drive seats 200, which are installed on the seat body 100 and are respectively used to drive the distal end of the catheter 1 to move, drive the distal end of the guide wire 304 to move, and drive the distal end of the rapid-exchange balloon catheter to move. As Figure 2 and Figure 3 shown, it can be understood that there are at least three such moving drive seats 200, and the three moving drive seats 200 are independently controlled. In this way, the distal end of the catheter, the distal end of the guide wire 304, and the distal end of the rapid-exchange balloon catheter can all independently adjust their moving distances.

[0078] On the other hand, the system includes a plurality of rotating drive seats 300, which are installed on the seat body 100 and are respectively used to drive the proximal end 101 of the catheter to rotate and drive the proximal end 301 of the guide wire to rotate. As Figure 2 shown, there are two such rotating drive seats 300 and they can be independently controlled, and the rotation centers of the rotating drive seats 300 should coincide with the centers of the circles of the corresponding proximal end 101 of the catheter and the proximal end 301 of the guide wire. In this way, the proximal end 101 of the catheter and the proximal end 301 of the guide wire can rotate to adjust the angles of their corresponding distal ends;

[0079] More importantly, the system further includes a guide wire guiding structure 440, which is fixedly installed on the seat body 100 and is used to adjust the turning direction of the guide wire 3. The guide wire guiding structure 440 can support the guide wire 3 and limit the bending arc and turning direction of the guide wire 3, ensure the orderliness of the guide wire 3, reduce the operation difficulty of the interventional treatment, and ensure the successful completion of the interventional operation.

[0080] Specifically, in one embodiment, the seat body 100 includes: a fixed seat 120; and a base 110, which has a sliding member and is installed on the fixed seat 120. Among them, the fixed seat 120 is L-shaped and is provided with a slide rail for the sliding member to slide. As Figure 2 and Figure 3 shown; it can be understood that the L-shaped fixed seat 120 includes a base connection part and a base extension part. The distal end of the catheter 1 is movably installed on the base extension part, and the proximal end 101 of the catheter is rotatably installed on the base 110. There can be one or more groups of slide rail sliding members between the base connection part and the base 110. By adjusting the position of the sliding member on the slide rail, the distance between the base extension part and the base 110 can be adjusted. In this way, as the position of the distal end of the catheter moves, an adaptive position adjustment can be made for the proximal end 101 of the catheter to avoid pulling the catheter 1 and ensure the normal use of the catheter 1.

[0081] Further, in one embodiment, the mobile drive base 200 includes: a wheel drive motor 210 fixedly installed on the base 110; and a mobile wheel set 220 including a tube wire drive wheel and a tube wire idler wheel extending from the base 110; wherein, the tube wire drive wheel and the tube wire idler wheel are arranged in parallel at intervals and jointly form a tube wire clamping space. As Figure 2 and Figure 3 shown, the tube wire clamping spaces of multiple mobile drive bases 200 can be respectively used to clamp the catheter 1, the guide wire 3 or the rapid exchange balloon catheter 2. Taking the guide wire 3 as an example, the driving force is provided by the wheel drive motor 210, and the guide wire 3 is clamped by the tube wire drive wheel and the tube wire idler wheel and converted into the driving force for the linear movement of the guide wire 3 as the tube wire drive wheel rotates. In this way, the forward or backward movement of the guide wire 3 can be realized, and the moving distance of the guide wire 3 is equal within a certain time range, which is convenient for medical staff to accurately control.

[0082] In one embodiment, the rotary drive base 300 includes: a rotary drive motor 310 fixedly installed on the base 110; a bevel gear transmission member 320 drivingly connected to the rotary drive motor 310; and a tube wire clamp 330 drivingly connected to the bevel gear transmission member 320 and used to clamp and fix the catheter 1 or the guide wire 3. As Figure 2 、 Figure 4 and Figure 5 shown, taking the catheter 1 as an example, the rotary drive motor can be installed on the back surface of the base 110, and the bevel gear transmission member 320 can be located on the front surface of the base 110. In this way, the structure is compact and the integration degree is high. The rotary drive motor 310 drives the bevel gear transmission member 320, and the catheter 1 is clamped and fixed by the tube wire clamp 330 installed on the bevel gear transmission member 320 to ensure the accurate rotation of the catheter 1, thereby adjusting the deflection direction of the distal end of the catheter.

[0083] For the guidance of the guide wire 3, in one embodiment, the guide wire guiding structure 440 is in an open shape and includes a bottom plate 41 fixedly installed on the base 110 and two limiting plates 42 arranged at intervals on the bottom plate 41. The limiting plates 42 are used to limit the moving range of the guide wire 3. As Figure 1 and Figure 2 shown, the guide wire 3 can be supported by the bottom plate 41 to ensure that the guide wire 3 is always in the same plane, which is convenient for controlling the movement and rotation of the guide wire 3. The distance between the front part 302 of the guide wire rotation and the rear part 303 of the guide wire rotation can be limited by the limiting plates 42. In this way, both the orderliness and integration degree of the guide wire 3 are improved, and the bending arc of the guide wire is ensured and limited. The limiting plate 42 can be a straight plate or an L-shaped plate, that is, the guide wire 3 can be restricted in the height direction of the bottom plate 41 to prevent the guide wire 3 from slipping out of the guide wire guiding structure 440.

[0084] In another embodiment, the guide wire guiding structure 440 is a sleeve member and includes a guiding housing and a limiting accommodation space defined by the guiding housing for accommodating the guide wire 3. At this time, the wire supporting surface of the guide wire guiding structure 440 is concave, and the defined accommodation space can well limit the guide wire 3 and prevent the guide wire 3 from falling off from the guiding housing.

[0085] In addition, the rapid exchange balloon system further includes a three-way pipe 4 communicated with the proximal end 101 of the catheter. A wire inlet 401 for inserting the rapid exchange balloon catheter 2 and the guide wire 3 and an injection liquid inlet 402 for communicating with an external syringe are formed on the three-way pipe 4, as Figure 2 shown. The wire inlet 401 can allow the entry of the rapid exchange balloon catheter 2 and the guide wire 3, and the injection liquid inlet 402 can allow the external syringe to inject the liquid medicine into the catheter 1 and can discharge it along the distal end of the catheter directly to the lesion site.

[0086] It should be specifically noted that the other constitutions and functions of the rapid exchange balloon system according to the embodiments of the present invention are known to those of ordinary skill in the art. To reduce redundancy, they will not be described herein.

[0087] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention. For example, changes in the shape, thickness, and material of the end plate sealing layer. These simple modifications all fall within the protection scope of the present invention.

[0088] In addition, it should be noted that in the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. Without conflict, they can be combined in any suitable way. To avoid unnecessary repetition, the present invention will not separately describe various possible combination ways.

[0089] In addition, any combination can be made between various different embodiments of the present invention as long as it does not violate the idea of the present invention, and it should also be regarded as the content disclosed by the present invention.

Claims

1. A rapid exchange balloon system, characterized in that, The rapid exchange balloon system includes: A catheter (1), including a proximal end of the catheter (101); A rapid exchange balloon catheter (2), inserted into the catheter (1) and including a movable distal end of the rapid exchange balloon catheter and a guide wire quick port located on the catheter wall; A guide wire (3), including a rotatable proximal end of the guide wire (301) and a movable distal end of the guide wire (304), and the distal end of the guide wire (304) can penetrate through the guide wire quick port and the distal end of the rapid exchange balloon catheter; A seat body (100), used for installing the catheter (1), the rapid exchange balloon catheter (2), and the guide wire (3), and the seat body (100) includes a fixed seat (120) and a base (110) having a sliding member and installed on the fixed seat (120); A guide wire guiding structure (440), the guide wire guiding structure (440) is in an open shape and includes a bottom plate (41) fixedly installed on the base (110) and two limiting plates (42) spaced apart on the bottom plate (41), and the bottom plate (41) can support the guide wire (3) to make the guide wire (3) located in the same plane to control the movement and rotation of the guide wire (3); and A three-way pipe (4) connected to the proximal end of the catheter (101), and a pipe and wire inlet (401) for inserting the rapid exchange balloon catheter (2) and the guide wire (3) and an injection liquid inlet (402) for communicating with an external syringe are formed on the three-way pipe (4); Wherein, the proximal end of the guide wire (301) and the proximal end of the catheter (101) are spaced apart and the relative positions are fixed. Between the proximal end of the guide wire (301) and the proximal end of the catheter (101), the guide wire (3) is bent, and the limiting plate (42) is used to limit the movement range of the guide wire (3).

2. The rapid exchange balloon system according to claim 1, wherein The proximal end of the guide wire (301) is cylindrical and the guide wire axis of the proximal end of the guide wire (301) is arranged non-coaxially with the pipeline axis of the proximal end of the catheter (101).

3. The rapid exchange balloon system according to claim 2, wherein, The proximal end of the guide wire (301) and the proximal end of the catheter (101) are arranged in parallel at intervals.

4. The rapid exchange balloon system according to claim 1, wherein, The guide wire (3) further includes a guide wire connecting section connected between the proximal end of the guide wire (301) and the distal end of the guide wire (304), and the guide wire connecting section is in a U shape and includes a front part of the guide wire turning (302) and a rear part of the guide wire turning (303) that are parallel to each other and an arc connecting part connected between the front part of the guide wire turning (302) and the rear part of the guide wire turning (303).

5. The rapid exchange balloon system according to any one of claims 1 to 4, characterized in that, The rapid exchange balloon system further includes: A plurality of moving drive seats (200), installed on the seat body (100) and respectively used for driving the distal end of the catheter (1) to move, driving the distal end of the guide wire (304) to move, and driving the distal end of the rapid exchange balloon catheter to move; and A plurality of rotation drive seats (300), installed on the seat body (100) and respectively used for driving the proximal end of the catheter (101) to rotate and driving the proximal end of the guide wire (301) to rotate.

6. The rapid exchange balloon system according to claim 5, wherein, The fixed seat (120) is in an L shape and is provided with a slide rail for the sliding member to slide.

7. The rapid exchange balloon system according to claim 6, wherein, The moving drive seat (200) includes: A wheel drive motor (210), fixedly installed on the base (110); and A moving wheel set (220), including a tube wire drive wheel and a tube wire idler wheel extending from the base (110); Wherein, the tube wire drive wheel and the tube wire idler wheel are arranged in parallel at intervals and jointly form a tube wire clamping space.

8. The rapid exchange balloon system according to claim 6, wherein The rotary drive seat (300) includes: A rotary drive motor (310), fixedly installed on the base (110); A bevel gear transmission member (320), drivingly connected to the rotary drive motor (310); and A tube wire clamp (330), drivingly connected to the bevel gear transmission member (320) and used for clamping and fixing the catheter (1) or the guide wire (3).

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