WO2023093575A1 - Rapid exchange balloon system - Google Patents

Abstract

A rapid exchange balloon system, comprising: a catheter (1) comprising a catheter proximal end (101); a rapid exchange balloon catheter (2) inserted into the catheter (1) and comprising a movable rapid exchange balloon catheter (2) distal end and a guidewire quick port located on a catheter wall; and a guidewire (3) comprising a rotatable guidewire proximal end (301) and a movable guidewire distal end (304), the guidewire distal end (304) being capable of penetrating through the guidewire quick port and the rapid exchange balloon catheter (2) distal end. The catheter proximal end (101) and the guidewire proximal end (301) are spaced from each other and fixedly arranged at positions, such that the guidewire (3) is always in a bent state. The position of the guidewire proximal end (301) does not need to be adaptively adjusted according to the movement of the guidewire distal end (304), thereby ensuring the rapidness, accuracy and convenience of an interventional operation.

Description

Rapid Exchange Balloon System

This application claims the priority of the Chinese patent application with the application number 202111396007.6 and the title of the invention "Rapid Exchange Balloon System" filed with the China Patent Office on November 23, 2021, the entire contents of which are incorporated by reference in the application.

technical field

The invention belongs to the technical field of interventional therapy, and in particular relates to a rapid exchange balloon system.

Background technique

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 diagnosis and local treatment of pathological conditions in the body. Interventional therapy includes endovascular intervention and non-vascular interventional therapy. Among them, vascular diseases mainly include percutaneous transluminal angioplasty, vascular stent, thrombolytic therapy, vascular malformation, arteriovenous fistula and hemangioma embolization treatment, inferior vena cava filter, various angiographic diagnosis and venous blood diagnosis wait. Non-vascular interventional therapy mainly includes various percutaneous biopsies, various non-vascular cavity angioplasty, local incapacitation of solid tumors, and interventional treatment of intervertebral disc herniation.

The rapid exchange balloon system is the most widely used in vascular interventional therapy. The main advantage is that it is not necessary to replace the catheter at any time during the operation of the guide wire. At the same time, the replacement of the balloon dilation catheter does not require an extended guide wire. There is a side hole at 25 cm. The guide wire can be inserted from the top of the balloon and passed through the side hole, which is convenient for the operator to operate. However, catheters are not available in existing rapid-exchange balloon systems. Rapid exchange of balloon catheters and guide wires needs to be adjusted to adjust the position of the proximal end according to the movement of the distal end. The operation steps are cumbersome, which increases the difficulty of interventional therapy.

technical solution

Aiming at the above defects or deficiencies of the prior art, the present invention provides a rapid exchange balloon system, which has a simple structure, can quickly, accurately and conveniently control the silk tube of the rapid exchange balloon system, and reduces the cost of interventional therapy. Operational difficulty ensures the smooth completion of interventional surgery.

To achieve the above object, the present invention provides a rapid exchange balloon system, the rapid exchange balloon system comprising:

Catheters, including catheter proximal ends;

a rapid-exchange balloon catheter inserted into said catheter and comprising a removable rapid-exchange balloon catheter distal end and a guidewire access port on the wall of the catheter; and

A guide wire, including a rotatable guide wire proximal end and a movable guide wire distal end, the guide wire distal end can pass through the guide wire rapid port and the rapid exchange balloon catheter distal end;

Wherein, the proximal end of the guide wire and the proximal end of the catheter are spaced apart and fixed relative to each other, and between the proximal end of the guide wire and the proximal end of the catheter, the guide wire is bent.

In some embodiments, the proximal end of the guidewire is cylindrical and the axis of the proximal end of the guidewire is non-coaxial to the axis of the tube at the proximal end of the catheter.

In some embodiments, the proximal end of the guide wire is spaced parallel to the proximal end of the catheter.

In some embodiments, the guide wire further includes a guide wire connection section connected to the guide wire proximal end and the guide wire distal end, the guide wire connection section is U-shaped and includes guide wire turns parallel to each other The front part and the guide wire turning back part and the arc-shaped connecting part connected between the guide wire turning front part and the guide wire turning back part.

In some embodiments, the rapid exchange balloon system further comprises:

a seat for mounting the catheter, the rapid exchange balloon catheter, and the guidewire;

A plurality of mobile driving seats are installed on the seat body and are respectively used to drive the catheter distal end of the catheter to move, to drive the guide wire to move distally, and to drive the rapid exchange balloon catheter distally to move;

a plurality of rotating drive bases, installed on the base body and used to respectively drive the proximal end of the catheter to rotate and the guide wire to rotate proximally; and

The guide wire guiding structure is fixedly installed on the base and used to adjust the direction of the guide wire.

In some embodiments, the seat includes:

mounts; and

The base has a sliding part and is installed on the fixed seat;

Wherein, the fixing seat is L-shaped and is provided with a slide rail for the sliding part to slide.

In some embodiments, the mobile drive base includes:

a wheel drive motor fixedly mounted on said base; and

a moving wheel set comprising a tubing drive wheel and a tubing idler extending from said base;

Wherein, the tube wire driving wheel and the tube wire idler wheel are arranged in parallel and at intervals and jointly form a space for clamping the tube wire.

In some embodiments, the rotary drive base includes:

The rotary drive motor is fixedly installed on the base;

a bevel gear drive transmission connected to said rotary drive motor; and

The tube wire clamp is connected with the bevel gear transmission part in transmission and is used for clamping and fixing the catheter or the guide wire.

In some embodiments, the wire guiding structure is open and includes a bottom plate fixedly installed on the base and two limiting plates arranged at intervals on the bottom plate, the limiting plates are used to limit The range of movement of the guide wire; or, the guide wire guiding structure is a sleeve member and includes a guide housing and a limiting accommodating space defined around the guide housing for accommodating the guide wire.

In some embodiments, the rapid exchange balloon system further includes a three-way tube connected to the proximal end of the catheter, and a three-way tube for inserting the rapid exchange balloon catheter and the guide wire is formed on the three-way tube. The tube filament inlet and the injection fluid inlet used to communicate with the external syringe.

Beneficial effect

In the rapid exchange balloon system of the present invention, the combination of catheter, guide wire and rapid exchange balloon catheter is adopted, and the helical position of the guide wire can be realized through the rotation and movement of the guide wire, so that the rapid exchange balloon system can be accurately Copy the doctor's actions. The distance between the proximal end of the catheter and the proximal end of the guide wire is set at a fixed position so that the guide wire is always in a curved 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, and the guide wire is bent and can move in an orderly manner, ensuring fast, accurate and convenient interventional surgery.

Other features and advantages of the present invention will be described in detail in the detailed description that follows.

Description of drawings

The accompanying drawings are used to provide an understanding of the present invention, and constitute a part of the description, together with the following specific embodiments, are used to explain the present invention, but do not constitute a limitation to the present invention. In the attached picture:

Fig. 1 is a three-dimensional schematic diagram of a rapid exchange balloon system according to a specific embodiment of the present invention;

Fig. 2 is a schematic structural diagram of Fig. 1 under different viewing angles;

Fig. 3 is a rear view structural diagram of Fig. 2, showing the seat body and the guide wire guiding structure;

Fig. 4 is a schematic diagram of the top view of Fig. 2, showing the seat body, the guide wire guiding structure and the catheter;

Figure 5 is an enlarged view of the partial structure of Figure 2, showing the rotating drive seat;

Explanation of reference signs

1	catheter	2	rapid exchange balloon catheter
101	catheter proximal end	3	guide wire
301	Guidewire Proximal	302	Guidewire steering anterior
303	Guidewire steering to the rear	100	Body
110	base	120	Fixing seat
200	Mobile drive seat	210	wheel drive motor
220	mobile wheels	300	Rotary drive seat
310	rotary drive motor	320	Bevel gear transmission
330	Pipe clamp	440	wire guide structure
41	Bottom plate	42	limit plate
4	Tee pipe	401	Tubing entrance
402	Injection inlet	Z1	guide wire axis
Z2	Piping axis	the	the

Detailed ways

Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

In the present invention, unless stated to the contrary, the used orientation words such as "up, down, top, bottom" generally refer to the directions shown in the drawings or refer to the vertical, perpendicular or gravitational directions The terms used to describe the mutual positional relationship of the various components mentioned above.

The rapid exchange balloon system is the most widely used in vascular interventional therapy. The main advantage is that it is not necessary to replace the catheter at any time during the operation of the guide wire. At the same time, the replacement of the balloon dilation catheter does not require an extended guide wire. There is a side hole at 25 cm. The guide wire can be inserted from the top of the balloon and passed through the side hole, which is convenient for the operator to operate. However, in the existing rapid-exchange balloon system, the catheter, rapid-exchange balloon catheter, and guide wire need to be adjusted according to the movement of the distal end to adjust the position of the proximal end. The operation steps are cumbersome, which increases the difficulty of interventional therapy. Therefore, how to solve the problem of ensuring the speed, accuracy and convenience of rapid exchange balloon interventional surgery is worth studying. The specific structure and function of the rapid exchange balloon system will be described in detail below.

Referring to Figures 1 to 5, 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;

Specifically, the catheter 1 includes the proximal end 101 of the catheter. In the rapid exchange balloon system, the catheter 1 is used as an external member, and the interior of the catheter 1 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 proximal end 101 of the catheter, so that the operation is convenient and the rapid exchange balloon catheter 2 and the guide wire 3 are effectively protected;

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 quick port of the guide wire on the wall of the tube. 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, wherein the distal end of the rapid exchange balloon catheter is inserted into the catheter 1 and can move along the length of the catheter 1, so that it can be The distal end of the rapid exchange catheter is moved to the patient's lesion to facilitate the treatment of the lesion; and

The guide wire 3 includes a rotatable guide wire proximal end 301 and a movable guide wire distal end 304. The guide wire distal end 304 can pass through the guide wire fast opening and the rapid exchange balloon catheter distal end. The guide wire 3 near the guide wire The end 301 can rotate, which determines the angular deflection of the guide wire distal end 304. The guide wire distal end 304 can move, which determines the distance that the guide wire 3 can move. In this way, through the rotation of the guide wire proximal end 301 and the guide wire distal end The movement of 304, the two movement modes are superimposed on the distal end of the guide wire 304, which can realize the helical position of the guide wire 3. Based on the helical position, the rapid exchange balloon system can accurately copy the doctor's action , to ensure the fast, accurate and convenient interventional surgery. In addition, since the guide wire 3 can pass through the distal end of the rapid exchange balloon catheter and the quick port of the guide wire, it is not necessary to use an extended guide wire 3 when replacing the rapid exchange balloon catheter 2 .

Wherein, the proximal end 301 of the guide wire and the proximal end 101 of the catheter are arranged at intervals and their 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 and arranged. 301 and the catheter proximal end 101 are spaced apart, that is, the distance between the two is fixed. During the interventional operation, the position of the guide wire proximal end 301 is fixed, and the guide wire distal end 304 is inserted into the catheter proximal end 101. The guidewire proximal end 301 and the guidewire portion outside the catheter proximal end 101 are formed as a guidewire exterior, which is always in a curved 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 in an orderly manner, ensuring fast, accurate and convenient interventional surgery.

Optionally, for the catheter 1, it can be a medical catheter with a certain inner diameter and has two catheter ends, one of which is the catheter proximal end 101. In the rapid exchange balloon system, a system mounting seat can be included, and the catheter proximal The end 101 can be fixedly installed on the system installation seat, and the installation seat can be a plate structure or a frame structure, which is not specifically limited.

Optionally, for the rapid exchange balloon catheter 2, two balloon catheter ends may be included, wherein one end of the balloon catheter 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, which The outer diameter is smaller than the inner diameter of the catheter 1 , so 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 that can be connected to a device capable of inflating the balloon 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 segment of the rapid-exchange balloon catheter 2 can be a polyetheramide block copolymer, and the catheter segment can be a polyetheramide block copolymer. , of course, the material of the rapid exchange balloon catheter 2 is not limited thereto.

Optionally, for the mobility of the distal end of the quick-exchange balloon catheter, a wheel set can be used to clamp the quick-exchange balloon catheter 2, and the rotation of the wheels of the wheel set can be converted into the linear movement of the quick-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 designated lesion.

Optionally, for the guide wire 3, the guide wire 3 can guide the catheter 1 to move to a designated position. The guide wire 3 plays a role of guidance, positioning and support in the rapid exchange balloon system, and can help the catheter enter blood vessels and other cavities Therefore, accurate manipulation of the guide wire 3 is a necessary condition for accurately replicating the actions of medical personnel. The guide wire 3 may include two parts, an inner part and an inner part, wherein the outer part may be a high-quality stainless steel wire wound on a spring lathe, and the inner part may be a hard and straight steel wire core accommodated in the outer part.

Optionally, the guide wire distal end 304 of the guide wire 3 can be a J-shaped safety guide wire, and its guide wire 3 includes two ends, wherein the movable guide wire distal end 304 is bent in a J shape, so that when inserted If there is a bent and deformed blood vessel during the tube, the front end of the guide wire will not be fixed on the blood vessel wall, which can effectively prevent damage to the blood vessel. The J-shaped structure at the distal end of the guide wire can be divided into large, medium and small sizes. The small size can be Applicable to blood vessels, the large size can help adjust the direction of intubation, and in places where the direction of the bile duct changes, the catheter 1 can be inserted into branches in different directions by means of the bending of the guide wire 3 .

Optionally, both the proximal end of the guide wire 301 and the proximal end of the catheter 101 are fixed in position. At this time, the two can be arranged at intervals on the system mount, that is, the distance between the two is fixed. Since the guide wire distal end 304 is inserted into the catheter proximal end 101, at this time, between the guide wire proximal end 301 and the catheter proximal end 101, the guide wire 3 can be bent by a stopper, so that there is no need to press the guide wire distal end 304 moves to adjust the position of the proximal end 301 of the guide wire, and the guide wire is bent and can move in an orderly manner, ensuring fast, accurate and convenient interventional surgery.

Regarding the specific structure of the rapid exchange balloon system, in one embodiment, the proximal end of the guide wire 301 is cylindrical and the axis Z1 of the proximal end of the guide wire 301 is arranged non-coaxially with the axis Z2 of the pipeline at the proximal end of the catheter 101 . As shown in Figures 1 and 2, it can be understood that the proximal end of the catheter 101 and the proximal end of the guide wire 301 are not on the same axis, as shown in Figure 2, the guide wire 3 can be arranged in a curved manner and always maintain a In this way, the orderly arrangement of the guide wire 3 can be ensured at the initial stage of the system; and the position of the proximal end 301 of the guide wire can be adjusted without adaptively when the distal end 304 of the guide wire moves, effectively ensuring The movement of the guide wire is required. Specifically, the rotation of the guide wire proximal end 301 can be effectively transmitted to the guide wire distal end 304 to adjust the deflection direction of the guide wire distal end 304, and the movement of the guide wire distal end 304 can realize the smooth movement of the guide wire distal end 304, and the rotation and the movement is superimposed on the distal end 304 of the guide wire to accurately replicate the operation of medical personnel, and the structure is simple and easy to operate.

Further, 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 is arranged in parallel with the proximal end 101 of the catheter. As shown in FIG. 2 , 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.

Furthermore, in one embodiment, the guide wire 3 also includes a guide wire connection section connected to the guide wire proximal end 301 and the guide wire distal end 304, the guide wire connection section is U-shaped and includes guide wire turning directions parallel to each other. The front part 302 and the guide wire turning rear part 303 and the arc-shaped connection part connected between the guide wire turning front part 302 and the guide wire turning rear part 303 . As shown in FIG. 2 , the guide wire connection section between the guide wire proximal end 301 and the catheter proximal end 101 is in a U-shaped structure, and the guide wire turning front 302 and the guide wire turning rear 303 can pass through the external components of the system Structural restrictions are carried out, and the distance between the guide wire turning front 302 and the guide wire turning rear 303 is always the same as the distance between the guide wire axis Z1 and the pipeline axis Z2, which not only ensures the orderly arrangement of the guide wire 3, but also improves the guide wire 3's structural compactness. For the arc-shaped connection part, the arc is not too large, and the distance between the axis Z1 of the guide wire and the axis Z2 of the pipeline can be at least 5 cm. In this way, the bending angle of the guide wire 3 is prevented from being too large, and the order of the guide wire 3 is ensured. Move, reduce the operation difficulty of operation.

For 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 shown in FIG. 1 and 3, the seat body 100 can be a plate-shaped member with a planar structure, which is convenient for processing. The installation catheter 1 , the rapid exchange balloon catheter 2 and the guide wire 3 are installed on the base body 100 , and are compact in structure and do not interfere with each other, which provides a premise guarantee for the successful completion of interventional therapy.

Regarding the specific driving structure 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 mobile driving seats 200, which are installed on the seat body 100 and are used to drive the distal end of the catheter 1 to move respectively. , driving the distal end of the guide wire 304 to move and driving the distal end of the rapid exchange balloon catheter to move, as shown in FIGS. The intervals are independently controlled, so that 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 independently adjust their moving distances.

On the other hand, the system includes a plurality of rotating drive bases 300, which are installed on the base body 100 and are respectively used to drive the rotation of the proximal end of the catheter 101 and the rotation of the proximal end of the guide wire 301. As shown in FIG. There are two and can be independently controlled, and the rotation center of the rotating drive seat 300 should coincide with the center of circle of the corresponding catheter proximal end 101 and guide wire proximal end 301, so that the catheter proximal end 101 and guide wire proximal end 301 capable of self-rotation to adjust the angle of its corresponding distal end;

More importantly, the system also includes a guide wire guiding structure 440 fixedly installed on the base body 100 and used to adjust the direction of the guide wire 3 . The guide wire 3 can be supported by the guide wire guiding structure 440, and the bending arc and turning direction of the guide wire 3 can be limited to ensure the order of the guide wire 3, reduce the operation difficulty of interventional therapy, and ensure the smooth completion of the interventional operation.

Specifically, in one embodiment, the seat body 100 includes: a fixed seat 120; and a base 110, which has a slider and is installed on the fixed seat 120, wherein the fixed seat 120 is L-shaped and is provided with a slide rails. As shown in Figure 2 and Figure 3; it can be understood that the L-shaped fixed seat 120 includes a base connection part and a base extension part, the catheter distal end of the catheter 1 is movably installed on the base extension part, and the catheter near The end 101 is rotatably mounted on the base 110, and there can be one or more sets of slide rail sliders between the base connection part and the base 110, and the extension of the base can be adjusted by adjusting the position of the slider on the slide rail. In this way, as the position of the distal end of the catheter moves, the proximal end 101 of the catheter can be adaptively adjusted to avoid pulling the catheter 1 and ensure the normal use of the catheter 1 .

Further, in one embodiment, the mobile drive base 200 includes: a wheel drive motor 210, fixedly installed on the base 110; An idler; wherein, the tube wire driving wheel and the tube wire idler are arranged in parallel and at intervals and jointly form a space for clamping the tube wire. As shown in Fig. 2 and Fig. 3, the clamping wire space of multiple mobile driving bases 200 can be used to clamp the catheter 1, the guide wire 3 or the rapid exchange balloon catheter 2 respectively. Taking the guide wire as an example, the motor is driven by the wheel 210 provides a driving force, the guide wire 3 is clamped by the tube wire driving wheel and the tube wire idler wheel and converted into a driving force for the linear movement of the guide wire 3 with the rotation of the tube wire driving wheel, so that the advancement or movement of the guide wire 3 can be realized Back, and the moving distance of the guide wire 3 within the range is equal, which is convenient for medical personnel to control accurately.

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

For the guidance of the guide wire 3, in one embodiment, the guide wire guiding structure 440 is in the shape of an opening 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 position plate 42 is used to limit the range of movement of the guide wire 3, as shown in Figures 1 and 2, the base plate 41 can support the guide wire 3 to ensure that the guide wire 3 is always located in the same plane, so as to facilitate the movement and control of the guide wire 3. Rotate, the distance between the guide wire turning to the front part 302 and the guide wire turning to the rear part 303 can be limited by the limit plate 42, so that the order and integration of the guide wire 3 are improved, and the bending of the guide wire is guaranteed and limited radian. The limiting plate 42 can be a straight plate or an L-shaped plate, that is, it can limit the guide wire 3 in the height direction of the bottom plate 41 to prevent the guide wire 3 from slipping out of the guide wire guide structure 440 .

In another embodiment, the guide wire guiding structure 440 is a sleeve member and includes a guide housing and a limited accommodating space defined around the guide housing for accommodating the guide wire 3 . At this time, the tube wire supporting surface of the guide wire guiding structure 440 is concave, and the housing space defined by the cover can well restrict the guide wire 3 and prevent the guide wire 3 from falling out of the guide housing.

In addition, the rapid exchange balloon system also includes a three-way tube 4 that communicates with the proximal end 101 of the catheter. The three-way tube 4 is formed with a tube wire inlet 401 for inserting the rapid exchange balloon catheter 2 and the guide wire 3 and for connecting with the catheter proximal end 101. The injection liquid inlet 402 connected with the external syringe is shown in FIG. 2 . The tubing wire inlet 401 can allow rapid exchange balloon catheter 2 and guide wire 3 to enter, and the injection fluid inlet 402 can allow an external syringe to inject medical fluid into the catheter 1 and discharge it along the distal end of the catheter to the lesion.

It should be noted that other configurations and functions of the rapid exchange balloon system according to the embodiment of the present invention are known to those skilled in the art, and will not be repeated here in order to reduce redundancy.

The preferred embodiment of the present invention has been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the specific details of the above embodiment, within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, For example, changes in the shape, thickness and material of the sealing layer of the end plate, these simple modifications all belong to the protection scope of the present invention.

In addition, it should be noted that, in the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the embodiments are combined A specific feature, structure, material, or characteristic described by or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In the case of no contradiction, any suitable combination can be used. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

In addition, various combinations of different embodiments of the present invention can also be combined arbitrarily, as long as they do not violate the idea of the present invention, they should also be regarded as the disclosed content of the present invention.

Claims (10)

1. A rapid exchange balloon system, characterized in that the rapid exchange balloon system comprises:

   a catheter (1), including a catheter proximal end (101);

   A quick-exchange balloon catheter (2), inserted into the catheter (1) and comprising a removable quick-exchange balloon catheter distal end and a guide wire rapid port on the tube wall; and

   The guide wire (3) includes a rotatable guide wire proximal end (301) and a movable guide wire distal end (304), and the guide wire distal end (304) can pass through the guide wire rapid port and the rapid guide wire Exchange the distal end of the balloon catheter;

   Wherein, the proximal end of the guide wire (301) and the proximal end of the catheter (101) are spaced apart and relatively fixed in position, and between the proximal end of the guide wire (301) and the proximal end of the catheter (101), the The guide wire (3) is bent and set.
2. The rapid exchange balloon system according to claim 1, wherein the proximal end of the guide wire (301) is cylindrical and the axis of the proximal end of the guide wire (301) is aligned with the proximal end of the catheter ( 101) of the pipeline axis non-coaxial arrangement.
3. The rapid exchange balloon system according to claim 2, characterized in that, the proximal end of the guide wire (301) is arranged in parallel with the proximal end of the catheter (101).
4. The rapid exchange balloon system according to claim 1, wherein the guide wire (3) further comprises a guide wire connected to the guide wire proximal end (301) and the guide wire distal end (304) A connecting section, the guide wire connecting section is U-shaped and includes a guide wire turning front (302) and a guide wire turning rear (303) parallel to each other, and is connected to the guide wire turning front (302) and the guide wire turning front (302) and the guide wire turning front (302) The guidewire turns to the arcuate junction between the rear parts (303).
5. The rapid exchange balloon system according to any one of claims 1 to 4, wherein the rapid exchange balloon system further comprises:

   A base (100), used for installing the catheter (1), the rapid exchange balloon catheter (2) and the guide wire (3);

   A plurality of mobile driving seats (200), installed on the seat body (100) and respectively used to drive the catheter distal end of the catheter (1) to move, to drive the guide wire distal end (304) to move and to drive the Distal movement of the rapid exchange balloon catheter;

   A plurality of rotating drive bases (300), installed on the base body (100) and respectively used to drive the proximal end of the catheter (101) to rotate and the proximal end of the guide wire (301) to rotate; and

   The guide wire guiding structure (440) is fixedly installed on the base body (100) and used to adjust the steering of the guide wire (3).
6. The rapid exchange balloon system according to claim 5, characterized in that, the seat (100) comprises:

   fixed seat (120); and

   a base (110), which has a sliding part and is installed on the fixed base (120);

   Wherein, the fixing seat (120) is L-shaped and is provided with a slide rail for sliding the slider.
7. The rapid exchange balloon system according to claim 6, wherein the mobile drive seat (200) comprises:

   a wheel drive motor (210), fixedly mounted on the base (110); and

   A moving wheel set (220), comprising a tube wire driving wheel and a tube wire idler wheel protruding from the base (110);

   Wherein, the tube wire driving wheel and the tube wire idler wheel are arranged in parallel and at intervals and jointly form a space for clamping the tube wire.
8. The rapid exchange balloon system according to claim 6, characterized in that, the rotating drive seat (300) comprises:

   A rotary drive motor (310), fixedly installed on the base (110);

   a bevel gear transmission (320), transmission connected to the rotary drive motor (310); and

   The tube wire clamp (330) is connected with the bevel gear transmission part (320) and used for clamping and fixing the catheter (1) or the guide wire (3).
9. The rapid exchange balloon system according to claim 6, characterized in that, the guide wire guiding structure (440) is in the shape of an opening and includes a base plate (41) fixedly installed on the base (110) and an interval arrangement Two limiting plates (42) on the base plate (41), the limiting plates (42) are used to limit the moving range of the guide wire (3); or, the guide wire guiding structure (440 ) is a sleeve member and includes a guide housing and a limit accommodating space for accommodating the guide wire (3) defined around the guide housing.
10. The rapid exchange balloon system according to claim 6, characterized in that, the rapid exchange balloon system further comprises a three-way tube (4) communicated with the catheter proximal end (101), and the three-way tube (4) is formed with a tube wire inlet (401) for inserting the rapid exchange balloon catheter (2) and the guide wire (3) and an injection fluid inlet (402) for communicating with an external syringe.

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